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torben |
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/*
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* Copyright (c) 2004-2009 Sergey Lyubka
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* Portions Copyright (c) 2009 Gilbert Wellisch
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* $Id$
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*/
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#if defined(_WIN32)
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#define _CRT_SECURE_NO_WARNINGS /* Disable deprecation warning in VS2005 */
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#endif /* _WIN32 */
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#ifndef _WIN32_WCE /* Some ANSI #includes are not available on Windows CE */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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#endif /* !_WIN32_WCE */
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#include <time.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <string.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdio.h>
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#if defined(_WIN32) /* Windows specific #includes and #defines */
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#define _WIN32_WINNT 0x0400 /* To make it link in VS2005 */
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#include <windows.h>
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#ifndef _WIN32_WCE
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#include <process.h>
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#include <direct.h>
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#include <io.h>
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#else /* _WIN32_WCE */
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/* Windows CE-specific definitions */
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#include <winsock2.h>
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#define NO_CGI /* WinCE has no pipes */
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#define NO_SSI /* WinCE has no pipes */
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#define FILENAME_MAX MAX_PATH
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#define BUFSIZ 4096
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typedef long off_t;
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#define errno GetLastError()
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#define strerror(x) _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
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#endif /* _WIN32_WCE */
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#define EPOCH_DIFF 0x019DB1DED53E8000 /* 116444736000000000 nsecs */
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#define RATE_DIFF 10000000 /* 100 nsecs */
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#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
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((uint64_t)((uint32_t)(hi))) << 32))
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#define SYS2UNIX_TIME(lo, hi) \
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(time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
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/*
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* Visual Studio 6 does not know __func__ or __FUNCTION__
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* The rest of MS compilers use __FUNCTION__, not C99 __func__
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*/
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#if defined(_MSC_VER) && _MSC_VER < 1300
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#define STRX(x) #x
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#define STR(x) STRX(x)
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#define __func__ "line " STR(__LINE__)
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#else
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#define __func__ __FUNCTION__
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#endif /* _MSC_VER */
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#define ERRNO GetLastError()
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#define NO_SOCKLEN_T
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#define SSL_LIB "ssleay32.dll"
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#define CRYPTO_LIB "libeay32.dll"
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#define DIRSEP '\\'
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#define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
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#define O_NONBLOCK 0
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#define EWOULDBLOCK WSAEWOULDBLOCK
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#define _POSIX_
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#define UINT64_FMT "I64"
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#define SHUT_WR 1
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#define snprintf _snprintf
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#define vsnprintf _vsnprintf
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#define sleep(x) Sleep((x) * 1000)
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#define popen(x, y) _popen(x, y)
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#define pclose(x) _pclose(x)
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#define close(x) _close(x)
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#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
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#define RTLD_LAZY 0
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#define fseeko(x, y, z) fseek((x), (y), (z))
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#define write(x, y, z) _write((x), (y), (unsigned) z)
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#define read(x, y, z) _read((x), (y), (unsigned) z)
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#define flockfile(x) (void) 0
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#define funlockfile(x) (void) 0
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#ifdef HAVE_STRTOUI64
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#define strtoull(x, y, z) _strtoui64(x, y, z)
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#else
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#define strtoull(x, y, z) strtoul(x, y, z)
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#endif /* HAVE_STRTOUI64 */
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#if !defined(fileno)
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#define fileno(x) _fileno(x)
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#endif /* !fileno MINGW #defines fileno */
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typedef HANDLE pthread_mutex_t;
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typedef HANDLE pthread_cond_t;
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typedef DWORD pthread_t;
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typedef HANDLE pid_t;
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struct timespec {
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long tv_nsec;
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long tv_sec;
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};
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static int pthread_mutex_lock(pthread_mutex_t *);
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static int pthread_mutex_unlock(pthread_mutex_t *);
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#if defined(HAVE_STDINT)
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#include <stdint.h>
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#else
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typedef unsigned int uint32_t;
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typedef unsigned short uint16_t;
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#if _MSC_VER > 1200
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typedef unsigned __int64 uint64_t;
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#else
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/* VC6 cannot cast double to unsigned __int64, needed by print_dir_entry() */
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typedef __int64 uint64_t;
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#endif /* _MSC_VER */
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#endif /* HAVE_STDINT */
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/*
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* POSIX dirent interface
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*/
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struct dirent {
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char d_name[FILENAME_MAX];
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};
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typedef struct DIR {
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HANDLE handle;
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WIN32_FIND_DATAW info;
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struct dirent result;
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} DIR;
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#else /* UNIX specific */
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#include <sys/wait.h>
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#include <sys/socket.h>
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#include <sys/select.h>
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#include <sys/mman.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/time.h>
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#include <pwd.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <dlfcn.h>
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#include <pthread.h>
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#define SSL_LIB "libssl.so"
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#define CRYPTO_LIB "libcrypto.so"
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#define DIRSEP '/'
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#define IS_DIRSEP_CHAR(c) ((c) == '/')
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#define O_BINARY 0
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#define closesocket(a) close(a)
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#define mg_fopen(x, y) fopen(x, y)
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#define mg_mkdir(x, y) mkdir(x, y)
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#define mg_remove(x) remove(x)
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#define mg_rename(x, y) rename(x, y)
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#define mg_getcwd(x, y) getcwd(x, y)
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#define ERRNO errno
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#define INVALID_SOCKET (-1)
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#define UINT64_FMT "ll"
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typedef int SOCKET;
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#endif /* End of Windows and UNIX specific includes */
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#include "mongoose.h"
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#define MONGOOSE_VERSION "2.8"
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#define PASSWORDS_FILE_NAME ".htpasswd"
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#define CGI_ENVIRONMENT_SIZE 4096
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#define MAX_CGI_ENVIR_VARS 64
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#define MAX_REQUEST_SIZE 8192
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#define MAX_LISTENING_SOCKETS 10
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#define MAX_CALLBACKS 20
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#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
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#define UNKNOWN_CONTENT_LENGTH ((uint64_t) ~0)
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#define DEBUG_MGS_PREFIX "*** Mongoose debug *** "
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#if defined(DEBUG)
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#define DEBUG_TRACE(x) do {printf x; putchar('\n'); fflush(stdout);} while (0)
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#else
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#define DEBUG_TRACE(x)
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#endif /* DEBUG */
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/*
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* Darwin prior to 7.0 and Win32 do not have socklen_t
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*/
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#ifdef NO_SOCKLEN_T
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typedef int socklen_t;
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#endif /* NO_SOCKLEN_T */
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#if !defined(FALSE)
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enum {FALSE, TRUE};
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#endif /* !FALSE */
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typedef int bool_t;
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typedef void * (*mg_thread_func_t)(void *);
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static const char *http_500_error = "Internal Server Error";
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/*
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* Snatched from OpenSSL includes. I put the prototypes here to be independent
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* from the OpenSSL source installation. Having this, mongoose + SSL can be
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* built on any system with binary SSL libraries installed.
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*/
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typedef struct ssl_st SSL;
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typedef struct ssl_method_st SSL_METHOD;
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typedef struct ssl_ctx_st SSL_CTX;
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#define SSL_ERROR_WANT_READ 2
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#define SSL_ERROR_WANT_WRITE 3
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#define SSL_FILETYPE_PEM 1
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#define CRYPTO_LOCK 1
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/*
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* Dynamically loaded SSL functionality
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*/
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struct ssl_func {
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const char *name; /* SSL function name */
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void (*ptr)(void); /* Function pointer */
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};
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#define SSL_free(x) (* (void (*)(SSL *)) ssl_sw[0].ptr)(x)
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#define SSL_accept(x) (* (int (*)(SSL *)) ssl_sw[1].ptr)(x)
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#define SSL_connect(x) (* (int (*)(SSL *)) ssl_sw[2].ptr)(x)
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#define SSL_read(x,y,z) (* (int (*)(SSL *, void *, int)) \
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ssl_sw[3].ptr)((x),(y),(z))
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#define SSL_write(x,y,z) (* (int (*)(SSL *, const void *,int)) \
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ssl_sw[4].ptr)((x), (y), (z))
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#define SSL_get_error(x,y)(* (int (*)(SSL *, int)) ssl_sw[5])((x), (y))
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#define SSL_set_fd(x,y) (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)((x), (y))
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#define SSL_new(x) (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)(x)
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#define SSL_CTX_new(x) (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)(x)
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#define SSLv23_server_method() (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)()
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#define SSL_library_init() (* (int (*)(void)) ssl_sw[10].ptr)()
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#define SSL_CTX_use_PrivateKey_file(x,y,z) (* (int (*)(SSL_CTX *, \
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const char *, int)) ssl_sw[11].ptr)((x), (y), (z))
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#define SSL_CTX_use_certificate_file(x,y,z) (* (int (*)(SSL_CTX *, \
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const char *, int)) ssl_sw[12].ptr)((x), (y), (z))
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#define SSL_CTX_set_default_passwd_cb(x,y) \
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(* (void (*)(SSL_CTX *, mg_spcb_t)) ssl_sw[13].ptr)((x),(y))
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#define SSL_CTX_free(x) (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)(x)
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#define CRYPTO_num_locks() (* (int (*)(void)) crypto_sw[0].ptr)()
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#define CRYPTO_set_locking_callback(x) \
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(* (void (*)(void (*)(int, int, const char *, int))) \
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crypto_sw[1].ptr)(x)
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#define CRYPTO_set_id_callback(x) \
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(* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)(x)
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/*
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* set_ssl_option() function when called, updates this array.
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* It loads SSL library dynamically and changes NULLs to the actual addresses
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* of respective functions. The macros above (like SSL_connect()) are really
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* just calling these functions indirectly via the pointer.
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*/
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static struct ssl_func ssl_sw[] = {
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{"SSL_free", NULL},
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{"SSL_accept", NULL},
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{"SSL_connect", NULL},
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{"SSL_read", NULL},
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{"SSL_write", NULL},
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{"SSL_get_error", NULL},
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{"SSL_set_fd", NULL},
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{"SSL_new", NULL},
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{"SSL_CTX_new", NULL},
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{"SSLv23_server_method", NULL},
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{"SSL_library_init", NULL},
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{"SSL_CTX_use_PrivateKey_file", NULL},
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{"SSL_CTX_use_certificate_file",NULL},
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{"SSL_CTX_set_default_passwd_cb",NULL},
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{"SSL_CTX_free", NULL},
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{NULL, NULL}
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};
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/*
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* Similar array as ssl_sw. These functions are located in different lib.
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*/
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static struct ssl_func crypto_sw[] = {
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{"CRYPTO_num_locks", NULL},
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{"CRYPTO_set_locking_callback", NULL},
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{"CRYPTO_set_id_callback", NULL},
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{NULL, NULL}
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};
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/*
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* Month names
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*/
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static const char *month_names[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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/*
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* Unified socket address. For IPv6 support, add IPv6 address structure
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* in the union u.
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*/
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struct usa {
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socklen_t len;
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union {
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|
|
struct sockaddr sa;
|
333 |
|
|
struct sockaddr_in sin;
|
334 |
|
|
} u;
|
335 |
|
|
};
|
336 |
|
|
|
337 |
|
|
/*
|
338 |
|
|
* Specifies a string (chunk of memory).
|
339 |
|
|
* Used to traverse comma separated lists of options.
|
340 |
|
|
*/
|
341 |
|
|
struct vec {
|
342 |
|
|
const char *ptr;
|
343 |
|
|
size_t len;
|
344 |
|
|
};
|
345 |
|
|
|
346 |
|
|
/*
|
347 |
|
|
* Structure used by mg_stat() function. Uses 64 bit file length.
|
348 |
|
|
*/
|
349 |
|
|
struct mgstat {
|
350 |
|
|
bool_t is_directory; /* Directory marker */
|
351 |
|
|
uint64_t size; /* File size */
|
352 |
|
|
time_t mtime; /* Modification time */
|
353 |
|
|
};
|
354 |
|
|
|
355 |
|
|
struct mg_option {
|
356 |
|
|
const char *name;
|
357 |
|
|
const char *description;
|
358 |
|
|
const char *default_value;
|
359 |
|
|
int index;
|
360 |
|
|
bool_t (*setter)(struct mg_context *, const char *);
|
361 |
|
|
};
|
362 |
|
|
|
363 |
|
|
/*
|
364 |
|
|
* Numeric indexes for the option values in context, ctx->options
|
365 |
|
|
*/
|
366 |
|
|
enum mg_option_index {
|
367 |
|
|
OPT_ROOT, OPT_INDEX_FILES, OPT_PORTS, OPT_DIR_LIST, OPT_CGI_EXTENSIONS,
|
368 |
|
|
OPT_CGI_INTERPRETER, OPT_CGI_ENV, OPT_SSI_EXTENSIONS, OPT_AUTH_DOMAIN,
|
369 |
|
|
OPT_AUTH_GPASSWD, OPT_AUTH_PUT, OPT_ACCESS_LOG, OPT_ERROR_LOG,
|
370 |
|
|
OPT_SSL_CERTIFICATE, OPT_ALIASES, OPT_ACL, OPT_UID, OPT_PROTECT,
|
371 |
|
|
OPT_SERVICE, OPT_HIDE, OPT_ADMIN_URI, OPT_MAX_THREADS, OPT_IDLE_TIME,
|
372 |
|
|
OPT_MIME_TYPES,
|
373 |
|
|
NUM_OPTIONS
|
374 |
|
|
};
|
375 |
|
|
|
376 |
|
|
/*
|
377 |
|
|
* Structure used to describe listening socket, or socket which was
|
378 |
|
|
* accept()-ed by the master thread and queued for future handling
|
379 |
|
|
* by the worker thread.
|
380 |
|
|
*/
|
381 |
|
|
struct socket {
|
382 |
|
|
SOCKET sock; /* Listening socket */
|
383 |
|
|
struct usa lsa; /* Local socket address */
|
384 |
|
|
struct usa rsa; /* Remote socket address */
|
385 |
|
|
bool_t is_ssl; /* Is socket SSL-ed */
|
386 |
|
|
};
|
387 |
|
|
|
388 |
|
|
/*
|
389 |
|
|
* Callback function, and where it is bound to
|
390 |
|
|
*/
|
391 |
|
|
struct callback {
|
392 |
|
|
char *uri_regex; /* URI regex to handle */
|
393 |
|
|
mg_callback_t func; /* user callback */
|
394 |
|
|
bool_t is_auth; /* func is auth checker */
|
395 |
|
|
int status_code; /* error code to handle */
|
396 |
|
|
void *user_data; /* opaque user data */
|
397 |
|
|
};
|
398 |
|
|
|
399 |
|
|
/*
|
400 |
|
|
* Mongoose context
|
401 |
|
|
*/
|
402 |
|
|
struct mg_context {
|
403 |
|
|
int stop_flag; /* Should we stop event loop */
|
404 |
|
|
SSL_CTX *ssl_ctx; /* SSL context */
|
405 |
|
|
|
406 |
|
|
FILE *access_log; /* Opened access log */
|
407 |
|
|
FILE *error_log; /* Opened error log */
|
408 |
|
|
|
409 |
|
|
struct socket listeners[MAX_LISTENING_SOCKETS];
|
410 |
|
|
int num_listeners;
|
411 |
|
|
|
412 |
|
|
struct callback callbacks[MAX_CALLBACKS];
|
413 |
|
|
int num_callbacks;
|
414 |
|
|
|
415 |
|
|
char *options[NUM_OPTIONS]; /* Configured opions */
|
416 |
|
|
pthread_mutex_t opt_mutex[NUM_OPTIONS]; /* Option protector */
|
417 |
|
|
|
418 |
|
|
int max_threads; /* Maximum number of threads */
|
419 |
|
|
int num_threads; /* Number of threads */
|
420 |
|
|
int num_idle; /* Number of idle threads */
|
421 |
|
|
pthread_mutex_t thr_mutex; /* Protects (max|num)_threads */
|
422 |
|
|
pthread_cond_t thr_cond;
|
423 |
|
|
pthread_mutex_t bind_mutex; /* Protects bind operations */
|
424 |
|
|
|
425 |
|
|
struct socket queue[20]; /* Accepted sockets */
|
426 |
|
|
int sq_head; /* Head of the socket queue */
|
427 |
|
|
int sq_tail; /* Tail of the socket queue */
|
428 |
|
|
pthread_cond_t empty_cond; /* Socket queue empty condvar */
|
429 |
|
|
pthread_cond_t full_cond; /* Socket queue full condvar */
|
430 |
|
|
|
431 |
|
|
mg_spcb_t ssl_password_callback;
|
432 |
|
|
mg_callback_t log_callback;
|
433 |
|
|
};
|
434 |
|
|
|
435 |
|
|
/*
|
436 |
|
|
* Client connection.
|
437 |
|
|
*/
|
438 |
|
|
struct mg_connection {
|
439 |
|
|
struct mg_request_info request_info;
|
440 |
|
|
struct mg_context *ctx; /* Mongoose context we belong to*/
|
441 |
|
|
SSL *ssl; /* SSL descriptor */
|
442 |
|
|
struct socket client; /* Connected client */
|
443 |
|
|
time_t birth_time; /* Time connection was accepted */
|
444 |
|
|
bool_t free_post_data; /* post_data was malloc-ed */
|
445 |
|
|
bool_t embedded_auth; /* Used for authorization */
|
446 |
|
|
uint64_t num_bytes_sent; /* Total bytes sent to client */
|
447 |
|
|
};
|
448 |
|
|
|
449 |
|
|
/*
|
450 |
|
|
* Print error message to the opened error log stream.
|
451 |
|
|
*/
|
452 |
|
|
static void
|
453 |
|
|
cry(struct mg_connection *conn, const char *fmt, ...)
|
454 |
|
|
{
|
455 |
|
|
char buf[BUFSIZ];
|
456 |
|
|
va_list ap;
|
457 |
|
|
|
458 |
|
|
va_start(ap, fmt);
|
459 |
|
|
(void) vsnprintf(buf, sizeof(buf), fmt, ap);
|
460 |
|
|
conn->ctx->log_callback(conn, &conn->request_info, buf);
|
461 |
|
|
va_end(ap);
|
462 |
|
|
}
|
463 |
|
|
|
464 |
|
|
/*
|
465 |
|
|
* Return fake connection structure. Used for logging, if connection
|
466 |
|
|
* is not applicable at the moment of logging.
|
467 |
|
|
*/
|
468 |
|
|
static struct mg_connection *
|
469 |
|
|
fc(struct mg_context *ctx)
|
470 |
|
|
{
|
471 |
|
|
static struct mg_connection fake_connection;
|
472 |
|
|
fake_connection.ctx = ctx;
|
473 |
|
|
return (&fake_connection);
|
474 |
|
|
}
|
475 |
|
|
|
476 |
|
|
/*
|
477 |
|
|
* If an embedded code does not intercept logging by calling
|
478 |
|
|
* mg_set_log_callback(), this function is used for logging. It prints
|
479 |
|
|
* stuff to the conn->error_log, which is stderr unless "error_log"
|
480 |
|
|
* option was set.
|
481 |
|
|
*/
|
482 |
|
|
static void
|
483 |
|
|
builtin_error_log(struct mg_connection *conn,
|
484 |
|
|
const struct mg_request_info *request_info, void *message)
|
485 |
|
|
{
|
486 |
|
|
FILE *fp;
|
487 |
|
|
time_t timestamp;
|
488 |
|
|
|
489 |
|
|
fp = conn->ctx->error_log;
|
490 |
|
|
flockfile(fp);
|
491 |
|
|
|
492 |
|
|
timestamp = time(NULL);
|
493 |
|
|
|
494 |
|
|
(void) fprintf(fp,
|
495 |
|
|
"[%010lu] [error] [client %s] ",
|
496 |
|
|
(unsigned long) timestamp,
|
497 |
|
|
inet_ntoa(conn->client.rsa.u.sin.sin_addr));
|
498 |
|
|
|
499 |
|
|
if (request_info->request_method != NULL)
|
500 |
|
|
(void) fprintf(fp, "%s %s: ",
|
501 |
|
|
request_info->request_method,
|
502 |
|
|
request_info->uri);
|
503 |
|
|
|
504 |
|
|
(void) fprintf(fp, "%s", (char *) message);
|
505 |
|
|
|
506 |
|
|
fputc('\n', fp);
|
507 |
|
|
|
508 |
|
|
funlockfile(fp);
|
509 |
|
|
}
|
510 |
|
|
|
511 |
|
|
const char *
|
512 |
|
|
mg_version(void)
|
513 |
|
|
{
|
514 |
|
|
return (MONGOOSE_VERSION);
|
515 |
|
|
}
|
516 |
|
|
|
517 |
|
|
static void
|
518 |
|
|
mg_strlcpy(register char *dst, register const char *src, size_t n)
|
519 |
|
|
{
|
520 |
|
|
for (; *src != '\0' && n > 1; n--)
|
521 |
|
|
*dst++ = *src++;
|
522 |
|
|
*dst = '\0';
|
523 |
|
|
}
|
524 |
|
|
|
525 |
|
|
static int
|
526 |
|
|
lowercase(const char *s)
|
527 |
|
|
{
|
528 |
|
|
return (tolower(* (unsigned char *) s));
|
529 |
|
|
}
|
530 |
|
|
|
531 |
|
|
static int
|
532 |
|
|
mg_strncasecmp(const char *s1, const char *s2, size_t len)
|
533 |
|
|
{
|
534 |
|
|
int diff = 0;
|
535 |
|
|
|
536 |
|
|
if (len > 0)
|
537 |
|
|
do {
|
538 |
|
|
diff = lowercase(s1++) - lowercase(s2++);
|
539 |
|
|
} while (diff == 0 && s1[-1] != '\0' && --len > 0);
|
540 |
|
|
|
541 |
|
|
return (diff);
|
542 |
|
|
}
|
543 |
|
|
|
544 |
|
|
static int
|
545 |
|
|
mg_strcasecmp(const char *s1, const char *s2)
|
546 |
|
|
{
|
547 |
|
|
int diff;
|
548 |
|
|
|
549 |
|
|
do {
|
550 |
|
|
diff = lowercase(s1++) - lowercase(s2++);
|
551 |
|
|
} while (diff == 0 && s1[-1] != '\0');
|
552 |
|
|
|
553 |
|
|
return (diff);
|
554 |
|
|
}
|
555 |
|
|
|
556 |
|
|
static char *
|
557 |
|
|
mg_strndup(const char *ptr, size_t len)
|
558 |
|
|
{
|
559 |
|
|
char *p;
|
560 |
|
|
|
561 |
|
|
if ((p = (char *) malloc(len + 1)) != NULL)
|
562 |
|
|
mg_strlcpy(p, ptr, len + 1);
|
563 |
|
|
|
564 |
|
|
return (p);
|
565 |
|
|
|
566 |
|
|
}
|
567 |
|
|
|
568 |
|
|
static char *
|
569 |
|
|
mg_strdup(const char *str)
|
570 |
|
|
{
|
571 |
|
|
return (mg_strndup(str, strlen(str)));
|
572 |
|
|
}
|
573 |
|
|
|
574 |
|
|
/*
|
575 |
|
|
* Like snprintf(), but never returns negative value, or the value
|
576 |
|
|
* that is larger than a supplied buffer.
|
577 |
|
|
* Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
|
578 |
|
|
* in his audit report.
|
579 |
|
|
*/
|
580 |
|
|
static int
|
581 |
|
|
mg_vsnprintf(struct mg_connection *conn,
|
582 |
|
|
char *buf, size_t buflen, const char *fmt, va_list ap)
|
583 |
|
|
{
|
584 |
|
|
int n;
|
585 |
|
|
|
586 |
|
|
if (buflen == 0)
|
587 |
|
|
return (0);
|
588 |
|
|
|
589 |
|
|
n = vsnprintf(buf, buflen, fmt, ap);
|
590 |
|
|
|
591 |
|
|
if (n < 0) {
|
592 |
|
|
cry(conn, "vsnprintf error");
|
593 |
|
|
n = 0;
|
594 |
|
|
} else if (n >= (int) buflen) {
|
595 |
|
|
cry(conn, "truncating vsnprintf buffer: [%.*s]",
|
596 |
|
|
n > 200 ? 200 : n, buf);
|
597 |
|
|
n = (int) buflen - 1;
|
598 |
|
|
}
|
599 |
|
|
buf[n] = '\0';
|
600 |
|
|
|
601 |
|
|
return (n);
|
602 |
|
|
}
|
603 |
|
|
|
604 |
|
|
static int
|
605 |
|
|
mg_snprintf(struct mg_connection *conn,
|
606 |
|
|
char *buf, size_t buflen, const char *fmt, ...)
|
607 |
|
|
{
|
608 |
|
|
va_list ap;
|
609 |
|
|
int n;
|
610 |
|
|
|
611 |
|
|
va_start(ap, fmt);
|
612 |
|
|
n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
|
613 |
|
|
va_end(ap);
|
614 |
|
|
|
615 |
|
|
return (n);
|
616 |
|
|
}
|
617 |
|
|
|
618 |
|
|
/*
|
619 |
|
|
* Convert string representing a boolean value to a boolean value
|
620 |
|
|
*/
|
621 |
|
|
static bool_t
|
622 |
|
|
is_true(const char *str)
|
623 |
|
|
{
|
624 |
|
|
static const char *trues[] = {"1", "yes", "true", "ja", NULL};
|
625 |
|
|
int i;
|
626 |
|
|
|
627 |
|
|
for (i = 0; trues[i] != NULL; i++)
|
628 |
|
|
if (str != NULL && mg_strcasecmp(str, trues[i]) == 0)
|
629 |
|
|
return (TRUE);
|
630 |
|
|
|
631 |
|
|
return (FALSE);
|
632 |
|
|
}
|
633 |
|
|
|
634 |
|
|
/*
|
635 |
|
|
* Skip the characters until one of the delimiters characters found.
|
636 |
|
|
* 0-terminate resulting word. Skip the rest of the delimiters if any.
|
637 |
|
|
* Advance pointer to buffer to the next word. Return found 0-terminated word.
|
638 |
|
|
*/
|
639 |
|
|
static char *
|
640 |
|
|
skip(char **buf, const char *delimiters)
|
641 |
|
|
{
|
642 |
|
|
char *p, *begin_word, *end_word, *end_delimiters;
|
643 |
|
|
|
644 |
|
|
begin_word = *buf;
|
645 |
|
|
end_word = begin_word + strcspn(begin_word, delimiters);
|
646 |
|
|
end_delimiters = end_word + strspn(end_word, delimiters);
|
647 |
|
|
|
648 |
|
|
for (p = end_word; p < end_delimiters; p++)
|
649 |
|
|
*p = '\0';
|
650 |
|
|
|
651 |
|
|
*buf = end_delimiters;
|
652 |
|
|
|
653 |
|
|
return (begin_word);
|
654 |
|
|
}
|
655 |
|
|
|
656 |
|
|
/*
|
657 |
|
|
* Return HTTP header value, or NULL if not found.
|
658 |
|
|
*/
|
659 |
|
|
static const char *
|
660 |
|
|
get_header(const struct mg_request_info *ri, const char *name)
|
661 |
|
|
{
|
662 |
|
|
int i;
|
663 |
|
|
|
664 |
|
|
for (i = 0; i < ri->num_headers; i++)
|
665 |
|
|
if (!mg_strcasecmp(name, ri->http_headers[i].name))
|
666 |
|
|
return (ri->http_headers[i].value);
|
667 |
|
|
|
668 |
|
|
return (NULL);
|
669 |
|
|
}
|
670 |
|
|
|
671 |
|
|
const char *
|
672 |
|
|
mg_get_header(const struct mg_connection *conn, const char *name)
|
673 |
|
|
{
|
674 |
|
|
return (get_header(&conn->request_info, name));
|
675 |
|
|
}
|
676 |
|
|
|
677 |
|
|
/*
|
678 |
|
|
* A helper function for traversing comma separated list of values.
|
679 |
|
|
* It returns a list pointer shifted to the next value, of NULL if the end
|
680 |
|
|
* of the list found.
|
681 |
|
|
* Value is stored in val vector. If value has form "x=y", then eq_val
|
682 |
|
|
* vector is initialized to point to the "y" part, and val vector length
|
683 |
|
|
* is adjusted to point only to "x".
|
684 |
|
|
*/
|
685 |
|
|
static const char *
|
686 |
|
|
next_option(const char *list, struct vec *val, struct vec *eq_val)
|
687 |
|
|
{
|
688 |
|
|
if (list == NULL || *list == '\0') {
|
689 |
|
|
/* End of the list */
|
690 |
|
|
list = NULL;
|
691 |
|
|
} else {
|
692 |
|
|
val->ptr = list;
|
693 |
|
|
if ((list = strchr(val->ptr, ',')) != NULL) {
|
694 |
|
|
/* Comma found. Store length and shift the list ptr */
|
695 |
|
|
val->len = list - val->ptr;
|
696 |
|
|
list++;
|
697 |
|
|
} else {
|
698 |
|
|
/* This value is the last one */
|
699 |
|
|
list = val->ptr + strlen(val->ptr);
|
700 |
|
|
val->len = list - val->ptr;
|
701 |
|
|
}
|
702 |
|
|
|
703 |
|
|
if (eq_val != NULL) {
|
704 |
|
|
/*
|
705 |
|
|
* Value has form "x=y", adjust pointers and lengths
|
706 |
|
|
* so that val points to "x", and eq_val points to "y".
|
707 |
|
|
*/
|
708 |
|
|
eq_val->len = 0;
|
709 |
|
|
eq_val->ptr = (const char*) memchr(val->ptr, '=', val->len);
|
710 |
|
|
if (eq_val->ptr != NULL) {
|
711 |
|
|
eq_val->ptr++; /* Skip over '=' character */
|
712 |
|
|
eq_val->len = val->ptr + val->len - eq_val->ptr;
|
713 |
|
|
val->len = (eq_val->ptr - val->ptr) - 1;
|
714 |
|
|
}
|
715 |
|
|
}
|
716 |
|
|
}
|
717 |
|
|
|
718 |
|
|
return (list);
|
719 |
|
|
}
|
720 |
|
|
|
721 |
|
|
#if !(defined(NO_CGI) && defined(NO_SSI))
|
722 |
|
|
/*
|
723 |
|
|
* Verify that given file has certain extension
|
724 |
|
|
*/
|
725 |
|
|
static bool_t
|
726 |
|
|
match_extension(const char *path, const char *ext_list)
|
727 |
|
|
{
|
728 |
|
|
struct vec ext_vec;
|
729 |
|
|
size_t path_len;
|
730 |
|
|
|
731 |
|
|
path_len = strlen(path);
|
732 |
|
|
|
733 |
|
|
while ((ext_list = next_option(ext_list, &ext_vec, NULL)) != NULL)
|
734 |
|
|
if (ext_vec.len < path_len &&
|
735 |
|
|
mg_strncasecmp(path + path_len - ext_vec.len,
|
736 |
|
|
ext_vec.ptr, ext_vec.len) == 0)
|
737 |
|
|
return (TRUE);
|
738 |
|
|
|
739 |
|
|
return (FALSE);
|
740 |
|
|
}
|
741 |
|
|
#endif /* !(NO_CGI && NO_SSI) */
|
742 |
|
|
|
743 |
|
|
/*
|
744 |
|
|
* Return TRUE if "uri" matches "regexp".
|
745 |
|
|
* '*' in the regexp means zero or more characters.
|
746 |
|
|
*/
|
747 |
|
|
static bool_t
|
748 |
|
|
match_regex(const char *uri, const char *regexp)
|
749 |
|
|
{
|
750 |
|
|
if (*regexp == '\0')
|
751 |
|
|
return (*uri == '\0');
|
752 |
|
|
|
753 |
|
|
if (*regexp == '*')
|
754 |
|
|
do {
|
755 |
|
|
if (match_regex(uri, regexp + 1))
|
756 |
|
|
return (TRUE);
|
757 |
|
|
} while (*uri++ != '\0');
|
758 |
|
|
|
759 |
|
|
if (*uri != '\0' && *regexp == *uri)
|
760 |
|
|
return (match_regex(uri + 1, regexp + 1));
|
761 |
|
|
|
762 |
|
|
return (FALSE);
|
763 |
|
|
}
|
764 |
|
|
|
765 |
|
|
static const struct callback *
|
766 |
|
|
find_callback(struct mg_context *ctx, bool_t is_auth,
|
767 |
|
|
const char *uri, int status_code)
|
768 |
|
|
{
|
769 |
|
|
const struct callback *cb, *found;
|
770 |
|
|
int i;
|
771 |
|
|
|
772 |
|
|
found = NULL;
|
773 |
|
|
pthread_mutex_lock(&ctx->bind_mutex);
|
774 |
|
|
for (i = 0; i < ctx->num_callbacks; i++) {
|
775 |
|
|
cb = ctx->callbacks + i;
|
776 |
|
|
if ((uri != NULL && cb->uri_regex != NULL &&
|
777 |
|
|
((is_auth && cb->is_auth) || (!is_auth && !cb->is_auth)) &&
|
778 |
|
|
match_regex(uri, cb->uri_regex)) || (uri == NULL &&
|
779 |
|
|
(cb->status_code == 0 ||
|
780 |
|
|
cb->status_code == status_code))) {
|
781 |
|
|
found = cb;
|
782 |
|
|
break;
|
783 |
|
|
}
|
784 |
|
|
}
|
785 |
|
|
pthread_mutex_unlock(&ctx->bind_mutex);
|
786 |
|
|
|
787 |
|
|
return (found);
|
788 |
|
|
}
|
789 |
|
|
|
790 |
|
|
/*
|
791 |
|
|
* For use by external application. This sets custom logging function.
|
792 |
|
|
*/
|
793 |
|
|
void
|
794 |
|
|
mg_set_log_callback(struct mg_context *ctx, mg_callback_t log_callback)
|
795 |
|
|
{
|
796 |
|
|
/* If NULL is specified as a callback, revert back to the default */
|
797 |
|
|
if (log_callback == NULL)
|
798 |
|
|
ctx->log_callback = &builtin_error_log;
|
799 |
|
|
else
|
800 |
|
|
ctx->log_callback = log_callback;
|
801 |
|
|
}
|
802 |
|
|
|
803 |
|
|
/*
|
804 |
|
|
* Send error message back to the client.
|
805 |
|
|
*/
|
806 |
|
|
static void
|
807 |
|
|
send_error(struct mg_connection *conn, int status, const char *reason,
|
808 |
|
|
const char *fmt, ...)
|
809 |
|
|
{
|
810 |
|
|
const struct callback *cb;
|
811 |
|
|
char buf[BUFSIZ];
|
812 |
|
|
va_list ap;
|
813 |
|
|
int len;
|
814 |
|
|
|
815 |
|
|
conn->request_info.status_code = status;
|
816 |
|
|
|
817 |
|
|
/* If error handler is set, call it. Otherwise, send error message */
|
818 |
|
|
if ((cb = find_callback(conn->ctx, FALSE, NULL, status)) != NULL) {
|
819 |
|
|
cb->func(conn, &conn->request_info, cb->user_data);
|
820 |
|
|
} else {
|
821 |
|
|
buf[0] = '\0';
|
822 |
|
|
len = 0;
|
823 |
|
|
|
824 |
|
|
/* Errors 1xx, 204 and 304 MUST NOT send a body */
|
825 |
|
|
if (status > 199 && status != 204 && status != 304) {
|
826 |
|
|
len = mg_snprintf(conn, buf, sizeof(buf),
|
827 |
|
|
"Error %d: %s\n", status, reason);
|
828 |
|
|
cry(conn, "%s", buf);
|
829 |
|
|
|
830 |
|
|
va_start(ap, fmt);
|
831 |
|
|
len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len,
|
832 |
|
|
fmt, ap);
|
833 |
|
|
va_end(ap);
|
834 |
|
|
conn->num_bytes_sent = len;
|
835 |
|
|
}
|
836 |
|
|
|
837 |
|
|
(void) mg_printf(conn,
|
838 |
|
|
"HTTP/1.1 %d %s\r\n"
|
839 |
|
|
"Content-Type: text/plain\r\n"
|
840 |
|
|
"Content-Length: %d\r\n"
|
841 |
|
|
"Connection: close\r\n"
|
842 |
|
|
"\r\n%s", status, reason, len, buf);
|
843 |
|
|
}
|
844 |
|
|
}
|
845 |
|
|
|
846 |
|
|
#ifdef _WIN32
|
847 |
|
|
static int
|
848 |
|
|
pthread_mutex_init(pthread_mutex_t *mutex, void *unused)
|
849 |
|
|
{
|
850 |
|
|
unused = NULL;
|
851 |
|
|
*mutex = CreateMutex(NULL, FALSE, NULL);
|
852 |
|
|
return (*mutex == NULL ? -1 : 0);
|
853 |
|
|
}
|
854 |
|
|
|
855 |
|
|
static int
|
856 |
|
|
pthread_mutex_destroy(pthread_mutex_t *mutex)
|
857 |
|
|
{
|
858 |
|
|
return (CloseHandle(*mutex) == 0 ? -1 : 0);
|
859 |
|
|
}
|
860 |
|
|
|
861 |
|
|
static int
|
862 |
|
|
pthread_mutex_lock(pthread_mutex_t *mutex)
|
863 |
|
|
{
|
864 |
|
|
return (WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1);
|
865 |
|
|
}
|
866 |
|
|
|
867 |
|
|
static int
|
868 |
|
|
pthread_mutex_unlock(pthread_mutex_t *mutex)
|
869 |
|
|
{
|
870 |
|
|
return (ReleaseMutex(*mutex) == 0 ? -1 : 0);
|
871 |
|
|
}
|
872 |
|
|
|
873 |
|
|
static int
|
874 |
|
|
pthread_cond_init(pthread_cond_t *cv, const void *unused)
|
875 |
|
|
{
|
876 |
|
|
unused = NULL;
|
877 |
|
|
*cv = CreateEvent(NULL, FALSE, FALSE, NULL);
|
878 |
|
|
return (*cv == NULL ? -1 : 0);
|
879 |
|
|
}
|
880 |
|
|
|
881 |
|
|
static int
|
882 |
|
|
pthread_cond_timedwait(pthread_cond_t *cv, pthread_mutex_t *mutex,
|
883 |
|
|
const struct timespec *ts)
|
884 |
|
|
{
|
885 |
|
|
DWORD status;
|
886 |
|
|
DWORD msec = INFINITE;
|
887 |
|
|
time_t now;
|
888 |
|
|
|
889 |
|
|
if (ts != NULL) {
|
890 |
|
|
now = time(NULL);
|
891 |
|
|
msec = 1000 * (now > ts->tv_sec ? 0 : ts->tv_sec - now);
|
892 |
|
|
}
|
893 |
|
|
|
894 |
|
|
(void) ReleaseMutex(*mutex);
|
895 |
|
|
status = WaitForSingleObject(*cv, msec);
|
896 |
|
|
(void) WaitForSingleObject(*mutex, INFINITE);
|
897 |
|
|
|
898 |
|
|
return (status == WAIT_OBJECT_0 ? 0 : -1);
|
899 |
|
|
}
|
900 |
|
|
|
901 |
|
|
static int
|
902 |
|
|
pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex)
|
903 |
|
|
{
|
904 |
|
|
return (pthread_cond_timedwait(cv, mutex, NULL));
|
905 |
|
|
}
|
906 |
|
|
|
907 |
|
|
static int
|
908 |
|
|
pthread_cond_signal(pthread_cond_t *cv)
|
909 |
|
|
{
|
910 |
|
|
return (SetEvent(*cv) == 0 ? -1 : 0);
|
911 |
|
|
}
|
912 |
|
|
|
913 |
|
|
static int
|
914 |
|
|
pthread_cond_destroy(pthread_cond_t *cv)
|
915 |
|
|
{
|
916 |
|
|
return (CloseHandle(*cv) == 0 ? -1 : 0);
|
917 |
|
|
}
|
918 |
|
|
|
919 |
|
|
static pthread_t
|
920 |
|
|
pthread_self(void)
|
921 |
|
|
{
|
922 |
|
|
return (GetCurrentThreadId());
|
923 |
|
|
}
|
924 |
|
|
|
925 |
|
|
/*
|
926 |
|
|
* Change all slashes to backslashes. It is Windows.
|
927 |
|
|
*/
|
928 |
|
|
static void
|
929 |
|
|
fix_directory_separators(char *path)
|
930 |
|
|
{
|
931 |
|
|
int i;
|
932 |
|
|
|
933 |
|
|
for (i = 0; path[i] != '\0'; i++) {
|
934 |
|
|
if (path[i] == '/')
|
935 |
|
|
path[i] = '\\';
|
936 |
|
|
/* i > 0 check is to preserve UNC paths, \\server\file.txt */
|
937 |
|
|
if (path[i] == '\\' && i > 0)
|
938 |
|
|
while (path[i + 1] == '\\' || path[i + 1] == '/')
|
939 |
|
|
(void) memmove(path + i + 1,
|
940 |
|
|
path + i + 2, strlen(path + i + 1));
|
941 |
|
|
}
|
942 |
|
|
}
|
943 |
|
|
|
944 |
|
|
/*
|
945 |
|
|
* Encode 'path' which is assumed UTF-8 string, into UNICODE string.
|
946 |
|
|
* wbuf and wbuf_len is a target buffer and its length.
|
947 |
|
|
*/
|
948 |
|
|
static void
|
949 |
|
|
to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len)
|
950 |
|
|
{
|
951 |
|
|
char buf[FILENAME_MAX], *p;
|
952 |
|
|
|
953 |
|
|
mg_strlcpy(buf, path, sizeof(buf));
|
954 |
|
|
fix_directory_separators(buf);
|
955 |
|
|
|
956 |
|
|
/* Point p to the end of the file name */
|
957 |
|
|
p = buf + strlen(buf) - 1;
|
958 |
|
|
|
959 |
|
|
/* Trim trailing backslash character */
|
960 |
|
|
while (p > buf && *p == '\\' && p[-1] != ':')
|
961 |
|
|
*p-- = '\0';
|
962 |
|
|
|
963 |
|
|
/*
|
964 |
|
|
* Protect from CGI code disclosure.
|
965 |
|
|
* This is very nasty hole. Windows happily opens files with
|
966 |
|
|
* some garbage in the end of file name. So fopen("a.cgi ", "r")
|
967 |
|
|
* actually opens "a.cgi", and does not return an error!
|
968 |
|
|
*/
|
969 |
|
|
if (*p == 0x20 || *p == 0x2e || *p == 0x2b || (*p & ~0x7f)) {
|
970 |
|
|
(void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
|
971 |
|
|
buf[0] = '\0';
|
972 |
|
|
}
|
973 |
|
|
|
974 |
|
|
(void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
|
975 |
|
|
}
|
976 |
|
|
|
977 |
|
|
#if defined(_WIN32_WCE)
|
978 |
|
|
|
979 |
|
|
static time_t
|
980 |
|
|
time(time_t *ptime)
|
981 |
|
|
{
|
982 |
|
|
time_t t;
|
983 |
|
|
SYSTEMTIME st;
|
984 |
|
|
FILETIME ft;
|
985 |
|
|
|
986 |
|
|
GetSystemTime(&st);
|
987 |
|
|
SystemTimeToFileTime(&st, &ft);
|
988 |
|
|
t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
|
989 |
|
|
|
990 |
|
|
if (ptime != NULL)
|
991 |
|
|
*ptime = t;
|
992 |
|
|
|
993 |
|
|
return (t);
|
994 |
|
|
}
|
995 |
|
|
|
996 |
|
|
static time_t
|
997 |
|
|
mktime(struct tm *ptm)
|
998 |
|
|
{
|
999 |
|
|
SYSTEMTIME st;
|
1000 |
|
|
FILETIME ft, lft;
|
1001 |
|
|
|
1002 |
|
|
st.wYear = ptm->tm_year + 1900;
|
1003 |
|
|
st.wMonth = ptm->tm_mon + 1;
|
1004 |
|
|
st.wDay = ptm->tm_mday;
|
1005 |
|
|
st.wHour = ptm->tm_hour;
|
1006 |
|
|
st.wMinute = ptm->tm_min;
|
1007 |
|
|
st.wSecond = ptm->tm_sec;
|
1008 |
|
|
st.wMilliseconds = 0;
|
1009 |
|
|
|
1010 |
|
|
SystemTimeToFileTime(&st, &ft);
|
1011 |
|
|
LocalFileTimeToFileTime(&ft, &lft);
|
1012 |
|
|
return (time_t)((MAKEUQUAD(lft.dwLowDateTime, lft.dwHighDateTime) -
|
1013 |
|
|
EPOCH_DIFF) / RATE_DIFF);
|
1014 |
|
|
}
|
1015 |
|
|
|
1016 |
|
|
static struct tm *
|
1017 |
|
|
localtime(const time_t *ptime, struct tm *ptm)
|
1018 |
|
|
{
|
1019 |
|
|
uint64_t t = ((uint64_t)*ptime) * RATE_DIFF + EPOCH_DIFF;
|
1020 |
|
|
FILETIME ft, lft;
|
1021 |
|
|
SYSTEMTIME st;
|
1022 |
|
|
TIME_ZONE_INFORMATION tzinfo;
|
1023 |
|
|
|
1024 |
|
|
if (ptm == NULL)
|
1025 |
|
|
return NULL;
|
1026 |
|
|
|
1027 |
|
|
* (uint64_t *) &ft = t;
|
1028 |
|
|
FileTimeToLocalFileTime(&ft, &lft);
|
1029 |
|
|
FileTimeToSystemTime(&lft, &st);
|
1030 |
|
|
ptm->tm_year = st.wYear - 1900;
|
1031 |
|
|
ptm->tm_mon = st.wMonth - 1;
|
1032 |
|
|
ptm->tm_wday = st.wDayOfWeek;
|
1033 |
|
|
ptm->tm_mday = st.wDay;
|
1034 |
|
|
ptm->tm_hour = st.wHour;
|
1035 |
|
|
ptm->tm_min = st.wMinute;
|
1036 |
|
|
ptm->tm_sec = st.wSecond;
|
1037 |
|
|
ptm->tm_yday = 0; // hope nobody uses this
|
1038 |
|
|
ptm->tm_isdst = ((GetTimeZoneInformation(&tzinfo) ==
|
1039 |
|
|
TIME_ZONE_ID_DAYLIGHT) ? 1 : 0);
|
1040 |
|
|
|
1041 |
|
|
return ptm;
|
1042 |
|
|
}
|
1043 |
|
|
|
1044 |
|
|
static size_t
|
1045 |
|
|
strftime(char *dst, size_t dst_size, const char *fmt, const struct tm *tm)
|
1046 |
|
|
{
|
1047 |
|
|
(void) snprintf(dst, dst_size, "implement strftime() for WinCE");
|
1048 |
|
|
return (0);
|
1049 |
|
|
}
|
1050 |
|
|
#endif
|
1051 |
|
|
|
1052 |
|
|
static int
|
1053 |
|
|
mg_rename(const char* oldname, const char* newname)
|
1054 |
|
|
{
|
1055 |
|
|
wchar_t woldbuf[FILENAME_MAX];
|
1056 |
|
|
wchar_t wnewbuf[FILENAME_MAX];
|
1057 |
|
|
|
1058 |
|
|
to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
|
1059 |
|
|
to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
|
1060 |
|
|
|
1061 |
|
|
return (MoveFileW(woldbuf, wnewbuf) ? 0 : -1);
|
1062 |
|
|
}
|
1063 |
|
|
|
1064 |
|
|
|
1065 |
|
|
static FILE *
|
1066 |
|
|
mg_fopen(const char *path, const char *mode)
|
1067 |
|
|
{
|
1068 |
|
|
wchar_t wbuf[FILENAME_MAX], wmode[20];
|
1069 |
|
|
|
1070 |
|
|
to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
1071 |
|
|
MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
|
1072 |
|
|
|
1073 |
|
|
return (_wfopen(wbuf, wmode));
|
1074 |
|
|
}
|
1075 |
|
|
|
1076 |
|
|
static int
|
1077 |
|
|
mg_stat(const char *path, struct mgstat *stp)
|
1078 |
|
|
{
|
1079 |
|
|
int ok = -1; /* Error */
|
1080 |
|
|
wchar_t wbuf[FILENAME_MAX];
|
1081 |
|
|
WIN32_FILE_ATTRIBUTE_DATA info;
|
1082 |
|
|
|
1083 |
|
|
to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
1084 |
|
|
|
1085 |
|
|
if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
|
1086 |
|
|
stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
|
1087 |
|
|
stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
|
1088 |
|
|
info.ftLastWriteTime.dwHighDateTime);
|
1089 |
|
|
stp->is_directory =
|
1090 |
|
|
info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
|
1091 |
|
|
ok = 0; /* Success */
|
1092 |
|
|
}
|
1093 |
|
|
|
1094 |
|
|
return (ok);
|
1095 |
|
|
}
|
1096 |
|
|
|
1097 |
|
|
static int
|
1098 |
|
|
mg_remove(const char *path)
|
1099 |
|
|
{
|
1100 |
|
|
wchar_t wbuf[FILENAME_MAX];
|
1101 |
|
|
|
1102 |
|
|
to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
|
1103 |
|
|
|
1104 |
|
|
return (DeleteFileW(wbuf) ? 0 : -1);
|
1105 |
|
|
}
|
1106 |
|
|
|
1107 |
|
|
static int
|
1108 |
|
|
mg_mkdir(const char *path, int mode)
|
1109 |
|
|
{
|
1110 |
|
|
char buf[FILENAME_MAX];
|
1111 |
|
|
wchar_t wbuf[FILENAME_MAX];
|
1112 |
|
|
|
1113 |
|
|
mode = 0; /* Unused */
|
1114 |
|
|
mg_strlcpy(buf, path, sizeof(buf));
|
1115 |
|
|
fix_directory_separators(buf);
|
1116 |
|
|
|
1117 |
|
|
(void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
|
1118 |
|
|
|
1119 |
|
|
return (CreateDirectoryW(wbuf, NULL) ? 0 : -1);
|
1120 |
|
|
}
|
1121 |
|
|
|
1122 |
|
|
static char *
|
1123 |
|
|
mg_getcwd(char *buf, int buf_len)
|
1124 |
|
|
{
|
1125 |
|
|
wchar_t wbuf[FILENAME_MAX], *basename;
|
1126 |
|
|
|
1127 |
|
|
if (GetModuleFileNameW(NULL, wbuf, ARRAY_SIZE(wbuf))) {
|
1128 |
|
|
if ((basename = wcsrchr(wbuf, DIRSEP)) != NULL) {
|
1129 |
|
|
*basename = L'\0';
|
1130 |
|
|
if (WideCharToMultiByte(CP_UTF8, 0, wbuf, -1, buf,
|
1131 |
|
|
buf_len, NULL, NULL) > 0)
|
1132 |
|
|
return (buf);
|
1133 |
|
|
}
|
1134 |
|
|
}
|
1135 |
|
|
|
1136 |
|
|
return (NULL);
|
1137 |
|
|
}
|
1138 |
|
|
|
1139 |
|
|
/*
|
1140 |
|
|
* Implementation of POSIX opendir/closedir/readdir for Windows.
|
1141 |
|
|
*/
|
1142 |
|
|
static DIR *
|
1143 |
|
|
opendir(const char *name)
|
1144 |
|
|
{
|
1145 |
|
|
DIR *dir = NULL;
|
1146 |
|
|
wchar_t wpath[FILENAME_MAX];
|
1147 |
|
|
DWORD attrs;
|
1148 |
|
|
|
1149 |
|
|
if (name == NULL) {
|
1150 |
|
|
SetLastError(ERROR_BAD_ARGUMENTS);
|
1151 |
|
|
} else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
|
1152 |
|
|
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
1153 |
|
|
} else {
|
1154 |
|
|
to_unicode(name, wpath, ARRAY_SIZE(wpath));
|
1155 |
|
|
attrs = GetFileAttributesW(wpath);
|
1156 |
|
|
if (attrs != 0xFFFFFFFF &&
|
1157 |
|
|
((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
|
1158 |
|
|
(void) wcscat(wpath, L"\\*");
|
1159 |
|
|
dir->handle = FindFirstFileW(wpath, &dir->info);
|
1160 |
|
|
dir->result.d_name[0] = '\0';
|
1161 |
|
|
} else {
|
1162 |
|
|
free(dir);
|
1163 |
|
|
dir = NULL;
|
1164 |
|
|
}
|
1165 |
|
|
}
|
1166 |
|
|
|
1167 |
|
|
return (dir);
|
1168 |
|
|
}
|
1169 |
|
|
|
1170 |
|
|
static int
|
1171 |
|
|
closedir(DIR *dir)
|
1172 |
|
|
{
|
1173 |
|
|
int result = 0;
|
1174 |
|
|
|
1175 |
|
|
if (dir != NULL) {
|
1176 |
|
|
if (dir->handle != INVALID_HANDLE_VALUE)
|
1177 |
|
|
result = FindClose(dir->handle) ? 0 : -1;
|
1178 |
|
|
|
1179 |
|
|
free(dir);
|
1180 |
|
|
} else {
|
1181 |
|
|
result = -1;
|
1182 |
|
|
SetLastError(ERROR_BAD_ARGUMENTS);
|
1183 |
|
|
}
|
1184 |
|
|
|
1185 |
|
|
return (result);
|
1186 |
|
|
}
|
1187 |
|
|
|
1188 |
|
|
struct dirent *
|
1189 |
|
|
readdir(DIR *dir)
|
1190 |
|
|
{
|
1191 |
|
|
struct dirent *result = 0;
|
1192 |
|
|
|
1193 |
|
|
if (dir) {
|
1194 |
|
|
if (dir->handle != INVALID_HANDLE_VALUE) {
|
1195 |
|
|
result = &dir->result;
|
1196 |
|
|
(void) WideCharToMultiByte(CP_UTF8, 0,
|
1197 |
|
|
dir->info.cFileName, -1, result->d_name,
|
1198 |
|
|
sizeof(result->d_name), NULL, NULL);
|
1199 |
|
|
|
1200 |
|
|
if (!FindNextFileW(dir->handle, &dir->info)) {
|
1201 |
|
|
(void) FindClose(dir->handle);
|
1202 |
|
|
dir->handle = INVALID_HANDLE_VALUE;
|
1203 |
|
|
}
|
1204 |
|
|
|
1205 |
|
|
} else {
|
1206 |
|
|
SetLastError(ERROR_FILE_NOT_FOUND);
|
1207 |
|
|
}
|
1208 |
|
|
} else {
|
1209 |
|
|
SetLastError(ERROR_BAD_ARGUMENTS);
|
1210 |
|
|
}
|
1211 |
|
|
|
1212 |
|
|
return (result);
|
1213 |
|
|
}
|
1214 |
|
|
|
1215 |
|
|
#define set_close_on_exec(fd) /* No FD_CLOEXEC on Windows */
|
1216 |
|
|
|
1217 |
|
|
static int
|
1218 |
|
|
start_thread(struct mg_context *ctx, mg_thread_func_t func, void *param)
|
1219 |
|
|
{
|
1220 |
|
|
HANDLE hThread;
|
1221 |
|
|
|
1222 |
|
|
ctx = NULL; /* Unused */
|
1223 |
|
|
|
1224 |
|
|
hThread = CreateThread(NULL, 0,
|
1225 |
|
|
(LPTHREAD_START_ROUTINE) func, param, 0, NULL);
|
1226 |
|
|
|
1227 |
|
|
if (hThread != NULL)
|
1228 |
|
|
(void) CloseHandle(hThread);
|
1229 |
|
|
|
1230 |
|
|
return (hThread == NULL ? -1 : 0);
|
1231 |
|
|
}
|
1232 |
|
|
|
1233 |
|
|
static HANDLE
|
1234 |
|
|
dlopen(const char *dll_name, int flags)
|
1235 |
|
|
{
|
1236 |
|
|
wchar_t wbuf[FILENAME_MAX];
|
1237 |
|
|
|
1238 |
|
|
flags = 0; /* Unused */
|
1239 |
|
|
to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
|
1240 |
|
|
|
1241 |
|
|
return (LoadLibraryW(wbuf));
|
1242 |
|
|
}
|
1243 |
|
|
|
1244 |
|
|
#if !defined(NO_CGI)
|
1245 |
|
|
static int
|
1246 |
|
|
kill(pid_t pid, int sig_num)
|
1247 |
|
|
{
|
1248 |
|
|
(void) TerminateProcess(pid, sig_num);
|
1249 |
|
|
(void) CloseHandle(pid);
|
1250 |
|
|
return (0);
|
1251 |
|
|
}
|
1252 |
|
|
|
1253 |
|
|
static pid_t
|
1254 |
|
|
spawn_process(struct mg_connection *conn, const char *prog, char *envblk,
|
1255 |
|
|
char *envp[], int fd_stdin, int fd_stdout, const char *dir)
|
1256 |
|
|
{
|
1257 |
|
|
HANDLE me;
|
1258 |
|
|
char *p, *interp, cmdline[FILENAME_MAX], line[FILENAME_MAX];
|
1259 |
|
|
FILE *fp;
|
1260 |
|
|
STARTUPINFOA si;
|
1261 |
|
|
PROCESS_INFORMATION pi;
|
1262 |
|
|
|
1263 |
|
|
envp = NULL; /* Unused */
|
1264 |
|
|
|
1265 |
|
|
(void) memset(&si, 0, sizeof(si));
|
1266 |
|
|
(void) memset(&pi, 0, sizeof(pi));
|
1267 |
|
|
|
1268 |
|
|
/* XXX redirect CGI errors to the error log file */
|
1269 |
|
|
si.cb = sizeof(si);
|
1270 |
|
|
si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
|
1271 |
|
|
si.wShowWindow = SW_HIDE;
|
1272 |
|
|
|
1273 |
|
|
me = GetCurrentProcess();
|
1274 |
|
|
(void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
|
1275 |
|
|
&si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
|
1276 |
|
|
(void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
|
1277 |
|
|
&si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
|
1278 |
|
|
|
1279 |
|
|
/* If CGI file is a script, try to read the interpreter line */
|
1280 |
|
|
interp = conn->ctx->options[OPT_CGI_INTERPRETER];
|
1281 |
|
|
if (interp == NULL) {
|
1282 |
|
|
line[2] = '\0';
|
1283 |
|
|
(void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%c%s",
|
1284 |
|
|
dir, DIRSEP, prog);
|
1285 |
|
|
if ((fp = fopen(cmdline, "r")) != NULL) {
|
1286 |
|
|
(void) fgets(line, sizeof(line), fp);
|
1287 |
|
|
if (memcmp(line, "#!", 2) != 0)
|
1288 |
|
|
line[2] = '\0';
|
1289 |
|
|
/* Trim whitespaces from interpreter name */
|
1290 |
|
|
for (p = &line[strlen(line) - 1]; p > line &&
|
1291 |
|
|
isspace(*p); p--)
|
1292 |
|
|
*p = '\0';
|
1293 |
|
|
(void) fclose(fp);
|
1294 |
|
|
}
|
1295 |
|
|
interp = line + 2;
|
1296 |
|
|
}
|
1297 |
|
|
|
1298 |
|
|
if ((p = (char *) strrchr(prog, '/')) != NULL)
|
1299 |
|
|
prog = p + 1;
|
1300 |
|
|
|
1301 |
|
|
(void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s",
|
1302 |
|
|
interp, interp[0] == '\0' ? "" : " ", prog);
|
1303 |
|
|
|
1304 |
|
|
(void) mg_snprintf(conn, line, sizeof(line), "%s", dir);
|
1305 |
|
|
fix_directory_separators(line);
|
1306 |
|
|
|
1307 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: Running [%s]", __func__, cmdline));
|
1308 |
|
|
if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
|
1309 |
|
|
CREATE_NEW_PROCESS_GROUP, envblk, line, &si, &pi) == 0) {
|
1310 |
|
|
cry(conn, "%s: CreateProcess(%s): %d",
|
1311 |
|
|
__func__, cmdline, ERRNO);
|
1312 |
|
|
pi.hProcess = (pid_t) -1;
|
1313 |
|
|
} else {
|
1314 |
|
|
(void) close(fd_stdin);
|
1315 |
|
|
(void) close(fd_stdout);
|
1316 |
|
|
}
|
1317 |
|
|
|
1318 |
|
|
(void) CloseHandle(si.hStdOutput);
|
1319 |
|
|
(void) CloseHandle(si.hStdInput);
|
1320 |
|
|
(void) CloseHandle(pi.hThread);
|
1321 |
|
|
|
1322 |
|
|
return ((pid_t) pi.hProcess);
|
1323 |
|
|
}
|
1324 |
|
|
|
1325 |
|
|
static int
|
1326 |
|
|
pipe(int *fds)
|
1327 |
|
|
{
|
1328 |
|
|
return (_pipe(fds, BUFSIZ, _O_BINARY));
|
1329 |
|
|
}
|
1330 |
|
|
#endif /* !NO_CGI */
|
1331 |
|
|
|
1332 |
|
|
static int
|
1333 |
|
|
set_non_blocking_mode(struct mg_connection *conn, SOCKET sock)
|
1334 |
|
|
{
|
1335 |
|
|
unsigned long on = 1;
|
1336 |
|
|
|
1337 |
|
|
conn = NULL; /* unused */
|
1338 |
|
|
return (ioctlsocket(sock, FIONBIO, &on));
|
1339 |
|
|
}
|
1340 |
|
|
|
1341 |
|
|
#else
|
1342 |
|
|
|
1343 |
|
|
static int
|
1344 |
|
|
mg_stat(const char *path, struct mgstat *stp)
|
1345 |
|
|
{
|
1346 |
|
|
struct stat st;
|
1347 |
|
|
int ok;
|
1348 |
|
|
|
1349 |
|
|
if (stat(path, &st) == 0) {
|
1350 |
|
|
ok = 0;
|
1351 |
|
|
stp->size = st.st_size;
|
1352 |
|
|
stp->mtime = st.st_mtime;
|
1353 |
|
|
stp->is_directory = S_ISDIR(st.st_mode);
|
1354 |
|
|
} else {
|
1355 |
|
|
ok = -1;
|
1356 |
|
|
}
|
1357 |
|
|
|
1358 |
|
|
return (ok);
|
1359 |
|
|
}
|
1360 |
|
|
|
1361 |
|
|
static void
|
1362 |
|
|
set_close_on_exec(int fd)
|
1363 |
|
|
{
|
1364 |
|
|
(void) fcntl(fd, F_SETFD, FD_CLOEXEC);
|
1365 |
|
|
}
|
1366 |
|
|
|
1367 |
|
|
static int
|
1368 |
|
|
start_thread(struct mg_context *ctx, mg_thread_func_t func, void *param)
|
1369 |
|
|
{
|
1370 |
|
|
pthread_t thread_id;
|
1371 |
|
|
pthread_attr_t attr;
|
1372 |
|
|
int retval;
|
1373 |
|
|
|
1374 |
|
|
(void) pthread_attr_init(&attr);
|
1375 |
|
|
(void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
1376 |
|
|
|
1377 |
|
|
if ((retval = pthread_create(&thread_id, &attr, func, param)) != 0)
|
1378 |
|
|
cry(fc(ctx), "%s: %s", __func__, strerror(retval));
|
1379 |
|
|
|
1380 |
|
|
return (retval);
|
1381 |
|
|
}
|
1382 |
|
|
|
1383 |
|
|
#ifndef NO_CGI
|
1384 |
|
|
static pid_t
|
1385 |
|
|
spawn_process(struct mg_connection *conn, const char *prog, char *envblk,
|
1386 |
|
|
char *envp[], int fd_stdin, int fd_stdout, const char *dir)
|
1387 |
|
|
{
|
1388 |
|
|
pid_t pid;
|
1389 |
|
|
const char *interp;
|
1390 |
|
|
|
1391 |
|
|
envblk = NULL; /* unused */
|
1392 |
|
|
|
1393 |
|
|
if ((pid = fork()) == -1) {
|
1394 |
|
|
/* Parent */
|
1395 |
|
|
send_error(conn, 500, http_500_error,
|
1396 |
|
|
"fork(): %s", strerror(ERRNO));
|
1397 |
|
|
} else if (pid == 0) {
|
1398 |
|
|
/* Child */
|
1399 |
|
|
if (chdir(dir) != 0) {
|
1400 |
|
|
cry(conn, "%s: chdir(%s): %s",
|
1401 |
|
|
__func__, dir, strerror(ERRNO));
|
1402 |
|
|
} else if (dup2(fd_stdin, 0) == -1) {
|
1403 |
|
|
cry(conn, "%s: dup2(stdin, %d): %s",
|
1404 |
|
|
__func__, fd_stdin, strerror(ERRNO));
|
1405 |
|
|
} else if (dup2(fd_stdout, 1) == -1) {
|
1406 |
|
|
cry(conn, "%s: dup2(stdout, %d): %s",
|
1407 |
|
|
__func__, fd_stdout, strerror(ERRNO));
|
1408 |
|
|
} else {
|
1409 |
|
|
/* If error file is specified, send errors there */
|
1410 |
|
|
if (conn->ctx->error_log != NULL)
|
1411 |
|
|
(void) dup2(fileno(conn->ctx->error_log), 2);
|
1412 |
|
|
|
1413 |
|
|
(void) close(fd_stdin);
|
1414 |
|
|
(void) close(fd_stdout);
|
1415 |
|
|
|
1416 |
|
|
/* Execute CGI program */
|
1417 |
|
|
interp = conn->ctx->options[OPT_CGI_INTERPRETER];
|
1418 |
|
|
if (interp == NULL) {
|
1419 |
|
|
(void) execle(prog, prog, NULL, envp);
|
1420 |
|
|
cry(conn, "%s: execle(%s): %s",
|
1421 |
|
|
__func__, prog, strerror(ERRNO));
|
1422 |
|
|
} else {
|
1423 |
|
|
(void) execle(interp, interp, prog, NULL, envp);
|
1424 |
|
|
cry(conn, "%s: execle(%s %s): %s",
|
1425 |
|
|
__func__, interp, prog, strerror(ERRNO));
|
1426 |
|
|
}
|
1427 |
|
|
}
|
1428 |
|
|
exit(EXIT_FAILURE);
|
1429 |
|
|
} else {
|
1430 |
|
|
/* Parent. Close stdio descriptors */
|
1431 |
|
|
(void) close(fd_stdin);
|
1432 |
|
|
(void) close(fd_stdout);
|
1433 |
|
|
}
|
1434 |
|
|
|
1435 |
|
|
return (pid);
|
1436 |
|
|
}
|
1437 |
|
|
#endif /* !NO_CGI */
|
1438 |
|
|
|
1439 |
|
|
static int
|
1440 |
|
|
set_non_blocking_mode(struct mg_connection *conn, SOCKET sock)
|
1441 |
|
|
{
|
1442 |
|
|
int flags, ok = -1;
|
1443 |
|
|
|
1444 |
|
|
if ((flags = fcntl(sock, F_GETFL, 0)) == -1) {
|
1445 |
|
|
cry(conn, "%s: fcntl(F_GETFL): %d", __func__, ERRNO);
|
1446 |
|
|
} else if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) != 0) {
|
1447 |
|
|
cry(conn, "%s: fcntl(F_SETFL): %d", __func__, ERRNO);
|
1448 |
|
|
} else {
|
1449 |
|
|
ok = 0; /* Success */
|
1450 |
|
|
}
|
1451 |
|
|
|
1452 |
|
|
return (ok);
|
1453 |
|
|
}
|
1454 |
|
|
#endif /* _WIN32 */
|
1455 |
|
|
|
1456 |
|
|
static void
|
1457 |
|
|
lock_option(struct mg_context *ctx, int opt_index)
|
1458 |
|
|
{
|
1459 |
|
|
if (pthread_mutex_lock(&ctx->opt_mutex[opt_index]) != 0)
|
1460 |
|
|
cry(fc(ctx), "pthread_mutex_lock: %s", strerror(ERRNO));
|
1461 |
|
|
}
|
1462 |
|
|
|
1463 |
|
|
static void
|
1464 |
|
|
unlock_option(struct mg_context *ctx, int opt_index)
|
1465 |
|
|
{
|
1466 |
|
|
if (pthread_mutex_unlock(&ctx->opt_mutex[opt_index]) != 0)
|
1467 |
|
|
cry(fc(ctx), "pthread_mutex_unlock: %s", strerror(ERRNO));
|
1468 |
|
|
}
|
1469 |
|
|
|
1470 |
|
|
/*
|
1471 |
|
|
* Write data to the IO channel - opened file descriptor, socket or SSL
|
1472 |
|
|
* descriptor. Return number of bytes written.
|
1473 |
|
|
*/
|
1474 |
|
|
static uint64_t
|
1475 |
|
|
push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf, uint64_t len)
|
1476 |
|
|
{
|
1477 |
|
|
uint64_t sent;
|
1478 |
|
|
int n, k;
|
1479 |
|
|
|
1480 |
|
|
sent = 0;
|
1481 |
|
|
while (sent < len) {
|
1482 |
|
|
|
1483 |
|
|
/* How many bytes we send in this iteration */
|
1484 |
|
|
k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
|
1485 |
|
|
|
1486 |
|
|
if (ssl != NULL) {
|
1487 |
|
|
n = SSL_write(ssl, buf + sent, k);
|
1488 |
|
|
} else if (fp != NULL) {
|
1489 |
|
|
n = fwrite(buf + sent, 1, k, fp);
|
1490 |
|
|
if (ferror(fp))
|
1491 |
|
|
n = -1;
|
1492 |
|
|
} else {
|
1493 |
|
|
n = send(sock, buf + sent, k, 0);
|
1494 |
|
|
}
|
1495 |
|
|
|
1496 |
|
|
if (n < 0)
|
1497 |
|
|
break;
|
1498 |
|
|
|
1499 |
|
|
sent += n;
|
1500 |
|
|
}
|
1501 |
|
|
|
1502 |
|
|
return (sent);
|
1503 |
|
|
}
|
1504 |
|
|
|
1505 |
|
|
/*
|
1506 |
|
|
* Read from IO channel - opened file descriptor, socket, or SSL descriptor.
|
1507 |
|
|
* Return number of bytes read.
|
1508 |
|
|
*/
|
1509 |
|
|
static int
|
1510 |
|
|
pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len)
|
1511 |
|
|
{
|
1512 |
|
|
int nread;
|
1513 |
|
|
|
1514 |
|
|
if (ssl != NULL) {
|
1515 |
|
|
nread = SSL_read(ssl, buf, len);
|
1516 |
|
|
} else if (fp != NULL) {
|
1517 |
|
|
nread = fread(buf, 1, (size_t) len, fp);
|
1518 |
|
|
if (ferror(fp))
|
1519 |
|
|
nread = -1;
|
1520 |
|
|
} else {
|
1521 |
|
|
nread = recv(sock, buf, (size_t) len, 0);
|
1522 |
|
|
}
|
1523 |
|
|
|
1524 |
|
|
return (nread);
|
1525 |
|
|
}
|
1526 |
|
|
|
1527 |
|
|
int
|
1528 |
|
|
mg_write(struct mg_connection *conn, const void *buf, int len)
|
1529 |
|
|
{
|
1530 |
|
|
assert(len >= 0);
|
1531 |
|
|
return ((int) push(NULL, conn->client.sock, conn->ssl,
|
1532 |
|
|
(const char *) buf, (uint64_t) len));
|
1533 |
|
|
}
|
1534 |
|
|
|
1535 |
|
|
int
|
1536 |
|
|
mg_printf(struct mg_connection *conn, const char *fmt, ...)
|
1537 |
|
|
{
|
1538 |
|
|
char buf[MAX_REQUEST_SIZE];
|
1539 |
|
|
int len;
|
1540 |
|
|
va_list ap;
|
1541 |
|
|
|
1542 |
|
|
va_start(ap, fmt);
|
1543 |
|
|
len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
|
1544 |
|
|
va_end(ap);
|
1545 |
|
|
|
1546 |
|
|
return (mg_write(conn, buf, len));
|
1547 |
|
|
}
|
1548 |
|
|
|
1549 |
|
|
/*
|
1550 |
|
|
* Return content length of the request, or UNKNOWN_CONTENT_LENGTH constant if
|
1551 |
|
|
* Content-Length header is not set.
|
1552 |
|
|
*/
|
1553 |
|
|
static uint64_t
|
1554 |
|
|
get_content_length(const struct mg_connection *conn)
|
1555 |
|
|
{
|
1556 |
|
|
const char *cl = mg_get_header(conn, "Content-Length");
|
1557 |
|
|
return (cl == NULL ? UNKNOWN_CONTENT_LENGTH : strtoull(cl, NULL, 10));
|
1558 |
|
|
}
|
1559 |
|
|
|
1560 |
|
|
/*
|
1561 |
|
|
* URL-decode input buffer into destination buffer.
|
1562 |
|
|
* 0-terminate the destination buffer. Return the length of decoded data.
|
1563 |
|
|
* form-url-encoded data differs from URI encoding in a way that it
|
1564 |
|
|
* uses '+' as character for space, see RFC 1866 section 8.2.1
|
1565 |
|
|
* http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
|
1566 |
|
|
*/
|
1567 |
|
|
static size_t
|
1568 |
|
|
url_decode(const char *src, size_t src_len, char *dst, size_t dst_len,
|
1569 |
|
|
bool_t is_form_url_encoded)
|
1570 |
|
|
{
|
1571 |
|
|
size_t i, j;
|
1572 |
|
|
int a, b;
|
1573 |
|
|
#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
|
1574 |
|
|
|
1575 |
|
|
for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
|
1576 |
|
|
if (src[i] == '%' &&
|
1577 |
|
|
isxdigit(* (unsigned char *) (src + i + 1)) &&
|
1578 |
|
|
isxdigit(* (unsigned char *) (src + i + 2))) {
|
1579 |
|
|
a = tolower(* (unsigned char *) (src + i + 1));
|
1580 |
|
|
b = tolower(* (unsigned char *) (src + i + 2));
|
1581 |
|
|
dst[j] = ((HEXTOI(a) << 4) | HEXTOI(b)) & 0xff;
|
1582 |
|
|
i += 2;
|
1583 |
|
|
} else if (is_form_url_encoded && src[i] == '+') {
|
1584 |
|
|
dst[j] = ' ';
|
1585 |
|
|
} else {
|
1586 |
|
|
dst[j] = src[i];
|
1587 |
|
|
}
|
1588 |
|
|
}
|
1589 |
|
|
|
1590 |
|
|
dst[j] = '\0'; /* Null-terminate the destination */
|
1591 |
|
|
|
1592 |
|
|
return (j);
|
1593 |
|
|
}
|
1594 |
|
|
|
1595 |
|
|
/*
|
1596 |
|
|
* Search for a form variable in a given buffer.
|
1597 |
|
|
* Semantic is the same as for mg_get_var().
|
1598 |
|
|
*/
|
1599 |
|
|
static char *
|
1600 |
|
|
get_var(const char *name, const char *buf, size_t buf_len)
|
1601 |
|
|
{
|
1602 |
|
|
const char *p, *e, *s;
|
1603 |
|
|
char *val;
|
1604 |
|
|
size_t var_len, len;
|
1605 |
|
|
|
1606 |
|
|
var_len = strlen(name);
|
1607 |
|
|
e = buf + buf_len;
|
1608 |
|
|
val = NULL;
|
1609 |
|
|
|
1610 |
|
|
/* buf is "var1=val1&var2=val2...". Find variable first */
|
1611 |
|
|
for (p = buf; p + var_len < e; p++)
|
1612 |
|
|
if ((p == buf || p[-1] == '&') && p[var_len] == '=' &&
|
1613 |
|
|
!mg_strncasecmp(name, p, var_len)) {
|
1614 |
|
|
|
1615 |
|
|
/* Point p to variable value */
|
1616 |
|
|
p += var_len + 1;
|
1617 |
|
|
|
1618 |
|
|
/* Point s to the end of the value */
|
1619 |
|
|
s = (const char *) memchr(p, '&', e - p);
|
1620 |
|
|
if (s == NULL)
|
1621 |
|
|
s = e;
|
1622 |
|
|
|
1623 |
|
|
/* Try to allocate the buffer */
|
1624 |
|
|
len = s - p;
|
1625 |
|
|
if ((val = (char *) malloc(len + 1)) != NULL)
|
1626 |
|
|
(void) url_decode(p, len, val, len + 1, TRUE);
|
1627 |
|
|
break;
|
1628 |
|
|
}
|
1629 |
|
|
|
1630 |
|
|
return (val);
|
1631 |
|
|
}
|
1632 |
|
|
|
1633 |
|
|
/*
|
1634 |
|
|
* Free the pointer returned by mg_get_var(). This is needed for languages
|
1635 |
|
|
* like python, to have an ability to free allocated data without
|
1636 |
|
|
* loading C runtime library and calling free().
|
1637 |
|
|
*/
|
1638 |
|
|
void
|
1639 |
|
|
mg_free(char *data)
|
1640 |
|
|
{
|
1641 |
|
|
free(data);
|
1642 |
|
|
}
|
1643 |
|
|
|
1644 |
|
|
/*
|
1645 |
|
|
* Return form data variable.
|
1646 |
|
|
* It can be specified in query string, or in the POST data.
|
1647 |
|
|
* Return NULL if the variable not found, or allocated 0-terminated value.
|
1648 |
|
|
* It is caller's responsibility to free the returned value.
|
1649 |
|
|
*/
|
1650 |
|
|
char *
|
1651 |
|
|
mg_get_var(const struct mg_connection *conn, const char *name)
|
1652 |
|
|
{
|
1653 |
|
|
const struct mg_request_info *ri = &conn->request_info;
|
1654 |
|
|
char *v1, *v2;
|
1655 |
|
|
|
1656 |
|
|
v1 = v2 = NULL;
|
1657 |
|
|
|
1658 |
|
|
/* Look in both query_string and POST data */
|
1659 |
|
|
if (ri->query_string != NULL)
|
1660 |
|
|
v1 = get_var(name, ri->query_string, strlen(ri->query_string));
|
1661 |
|
|
if (ri->post_data_len > 0)
|
1662 |
|
|
v2 = get_var(name, ri->post_data, ri->post_data_len);
|
1663 |
|
|
|
1664 |
|
|
/* If they both have queried variable, POST data wins */
|
1665 |
|
|
if (v1 != NULL && v2 != NULL)
|
1666 |
|
|
free(v1);
|
1667 |
|
|
|
1668 |
|
|
return (v2 == NULL ? v1 : v2);
|
1669 |
|
|
}
|
1670 |
|
|
|
1671 |
|
|
/*
|
1672 |
|
|
* Transform URI to the file name.
|
1673 |
|
|
*/
|
1674 |
|
|
static void
|
1675 |
|
|
convert_uri_to_file_name(struct mg_connection *conn, const char *uri,
|
1676 |
|
|
char *buf, size_t buf_len)
|
1677 |
|
|
{
|
1678 |
|
|
struct mg_context *ctx = conn->ctx;
|
1679 |
|
|
struct vec uri_vec, path_vec;
|
1680 |
|
|
const char *list;
|
1681 |
|
|
|
1682 |
|
|
lock_option(ctx, OPT_ROOT);
|
1683 |
|
|
mg_snprintf(conn, buf, buf_len, "%s%s", ctx->options[OPT_ROOT], uri);
|
1684 |
|
|
unlock_option(ctx, OPT_ROOT);
|
1685 |
|
|
|
1686 |
|
|
/* If requested URI has aliased prefix, use alternate root */
|
1687 |
|
|
lock_option(ctx, OPT_ALIASES);
|
1688 |
|
|
list = ctx->options[OPT_ALIASES];
|
1689 |
|
|
|
1690 |
|
|
while ((list = next_option(list, &uri_vec, &path_vec)) != NULL) {
|
1691 |
|
|
if (memcmp(uri, uri_vec.ptr, uri_vec.len) == 0) {
|
1692 |
|
|
(void) mg_snprintf(conn, buf, buf_len, "%.*s%s",
|
1693 |
|
|
path_vec.len, path_vec.ptr, uri + uri_vec.len);
|
1694 |
|
|
break;
|
1695 |
|
|
}
|
1696 |
|
|
}
|
1697 |
|
|
unlock_option(ctx, OPT_ALIASES);
|
1698 |
|
|
|
1699 |
|
|
#ifdef _WIN32
|
1700 |
|
|
fix_directory_separators(buf);
|
1701 |
|
|
#endif /* _WIN32 */
|
1702 |
|
|
}
|
1703 |
|
|
|
1704 |
|
|
/*
|
1705 |
|
|
* Setup listening socket on given address, return socket.
|
1706 |
|
|
* Address format: [local_ip_address:]port_number
|
1707 |
|
|
*/
|
1708 |
|
|
static SOCKET
|
1709 |
|
|
mg_open_listening_port(struct mg_context *ctx, const char *str, struct usa *usa)
|
1710 |
|
|
{
|
1711 |
|
|
SOCKET sock;
|
1712 |
|
|
int on = 1, a, b, c, d, port;
|
1713 |
|
|
|
1714 |
|
|
/* MacOS needs that. If we do not zero it, bind() will fail. */
|
1715 |
|
|
(void) memset(usa, 0, sizeof(*usa));
|
1716 |
|
|
|
1717 |
|
|
if (sscanf(str, "%d.%d.%d.%d:%d", &a, &b, &c, &d, &port) == 5) {
|
1718 |
|
|
/* IP address to bind to is specified */
|
1719 |
|
|
usa->u.sin.sin_addr.s_addr =
|
1720 |
|
|
htonl((a << 24) | (b << 16) | (c << 8) | d);
|
1721 |
|
|
} else if (sscanf(str, "%d", &port) == 1) {
|
1722 |
|
|
/* Only port number is specified. Bind to all addresses */
|
1723 |
|
|
usa->u.sin.sin_addr.s_addr = htonl(INADDR_ANY);
|
1724 |
|
|
} else {
|
1725 |
|
|
return (INVALID_SOCKET);
|
1726 |
|
|
}
|
1727 |
|
|
|
1728 |
|
|
usa->len = sizeof(usa->u.sin);
|
1729 |
|
|
usa->u.sin.sin_family = AF_INET;
|
1730 |
|
|
usa->u.sin.sin_port = htons((uint16_t) port);
|
1731 |
|
|
|
1732 |
|
|
if ((sock = socket(PF_INET, SOCK_STREAM, 6)) != INVALID_SOCKET &&
|
1733 |
|
|
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
|
1734 |
|
|
(char *) &on, sizeof(on)) == 0 &&
|
1735 |
|
|
bind(sock, &usa->u.sa, usa->len) == 0 &&
|
1736 |
|
|
listen(sock, 128) == 0) {
|
1737 |
|
|
/* Success */
|
1738 |
|
|
set_close_on_exec(sock);
|
1739 |
|
|
} else {
|
1740 |
|
|
/* Error */
|
1741 |
|
|
cry(fc(ctx), "%s(%d): %s", __func__, port, strerror(ERRNO));
|
1742 |
|
|
if (sock != INVALID_SOCKET)
|
1743 |
|
|
(void) closesocket(sock);
|
1744 |
|
|
sock = INVALID_SOCKET;
|
1745 |
|
|
}
|
1746 |
|
|
|
1747 |
|
|
return (sock);
|
1748 |
|
|
}
|
1749 |
|
|
|
1750 |
|
|
/*
|
1751 |
|
|
* Check whether full request is buffered. Return:
|
1752 |
|
|
* -1 if request is malformed
|
1753 |
|
|
* 0 if request is not yet fully buffered
|
1754 |
|
|
* >0 actual request length, including last \r\n\r\n
|
1755 |
|
|
*/
|
1756 |
|
|
static int
|
1757 |
|
|
get_request_len(const char *buf, size_t buflen)
|
1758 |
|
|
{
|
1759 |
|
|
const char *s, *e;
|
1760 |
|
|
int len = 0;
|
1761 |
|
|
|
1762 |
|
|
for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
|
1763 |
|
|
/* Control characters are not allowed but >=128 is. */
|
1764 |
|
|
if (!isprint(* (unsigned char *) s) && *s != '\r' &&
|
1765 |
|
|
*s != '\n' && * (unsigned char *) s < 128)
|
1766 |
|
|
len = -1;
|
1767 |
|
|
else if (s[0] == '\n' && s[1] == '\n')
|
1768 |
|
|
len = (int) (s - buf) + 2;
|
1769 |
|
|
else if (s[0] == '\n' && &s[1] < e &&
|
1770 |
|
|
s[1] == '\r' && s[2] == '\n')
|
1771 |
|
|
len = (int) (s - buf) + 3;
|
1772 |
|
|
|
1773 |
|
|
return (len);
|
1774 |
|
|
}
|
1775 |
|
|
|
1776 |
|
|
/*
|
1777 |
|
|
* Convert month to the month number. Return -1 on error, or month number
|
1778 |
|
|
*/
|
1779 |
|
|
static int
|
1780 |
|
|
montoi(const char *s)
|
1781 |
|
|
{
|
1782 |
|
|
size_t i;
|
1783 |
|
|
|
1784 |
|
|
for (i = 0; i < sizeof(month_names) / sizeof(month_names[0]); i++)
|
1785 |
|
|
if (!strcmp(s, month_names[i]))
|
1786 |
|
|
return ((int) i);
|
1787 |
|
|
|
1788 |
|
|
return (-1);
|
1789 |
|
|
}
|
1790 |
|
|
|
1791 |
|
|
/*
|
1792 |
|
|
* Parse date-time string, and return the corresponding time_t value
|
1793 |
|
|
*/
|
1794 |
|
|
static time_t
|
1795 |
|
|
date_to_epoch(const char *s)
|
1796 |
|
|
{
|
1797 |
|
|
time_t current_time;
|
1798 |
|
|
struct tm tm, *tmp;
|
1799 |
|
|
char mon[32];
|
1800 |
|
|
int sec, min, hour, mday, month, year;
|
1801 |
|
|
|
1802 |
|
|
(void) memset(&tm, 0, sizeof(tm));
|
1803 |
|
|
sec = min = hour = mday = month = year = 0;
|
1804 |
|
|
|
1805 |
|
|
if (((sscanf(s, "%d/%3s/%d %d:%d:%d",
|
1806 |
|
|
&mday, mon, &year, &hour, &min, &sec) == 6) ||
|
1807 |
|
|
(sscanf(s, "%d %3s %d %d:%d:%d",
|
1808 |
|
|
&mday, mon, &year, &hour, &min, &sec) == 6) ||
|
1809 |
|
|
(sscanf(s, "%*3s, %d %3s %d %d:%d:%d",
|
1810 |
|
|
&mday, mon, &year, &hour, &min, &sec) == 6) ||
|
1811 |
|
|
(sscanf(s, "%d-%3s-%d %d:%d:%d",
|
1812 |
|
|
&mday, mon, &year, &hour, &min, &sec) == 6)) &&
|
1813 |
|
|
(month = montoi(mon)) != -1) {
|
1814 |
|
|
tm.tm_mday = mday;
|
1815 |
|
|
tm.tm_mon = month;
|
1816 |
|
|
tm.tm_year = year;
|
1817 |
|
|
tm.tm_hour = hour;
|
1818 |
|
|
tm.tm_min = min;
|
1819 |
|
|
tm.tm_sec = sec;
|
1820 |
|
|
}
|
1821 |
|
|
|
1822 |
|
|
if (tm.tm_year > 1900)
|
1823 |
|
|
tm.tm_year -= 1900;
|
1824 |
|
|
else if (tm.tm_year < 70)
|
1825 |
|
|
tm.tm_year += 100;
|
1826 |
|
|
|
1827 |
|
|
/* Set Daylight Saving Time field */
|
1828 |
|
|
current_time = time(NULL);
|
1829 |
|
|
tmp = localtime(¤t_time);
|
1830 |
|
|
tm.tm_isdst = tmp->tm_isdst;
|
1831 |
|
|
|
1832 |
|
|
return (mktime(&tm));
|
1833 |
|
|
}
|
1834 |
|
|
|
1835 |
|
|
/*
|
1836 |
|
|
* Protect against directory disclosure attack by removing '..',
|
1837 |
|
|
* excessive '/' and '\' characters
|
1838 |
|
|
*/
|
1839 |
|
|
static void
|
1840 |
|
|
remove_double_dots_and_double_slashes(char *s)
|
1841 |
|
|
{
|
1842 |
|
|
char *p = s;
|
1843 |
|
|
|
1844 |
|
|
while (*s != '\0') {
|
1845 |
|
|
*p++ = *s++;
|
1846 |
|
|
if (s[-1] == '/' || s[-1] == '\\') {
|
1847 |
|
|
/* Skip all following slashes and backslashes */
|
1848 |
|
|
while (*s == '/' || *s == '\\')
|
1849 |
|
|
s++;
|
1850 |
|
|
|
1851 |
|
|
/* Skip all double-dots */
|
1852 |
|
|
while (*s == '.' && s[1] == '.')
|
1853 |
|
|
s += 2;
|
1854 |
|
|
}
|
1855 |
|
|
}
|
1856 |
|
|
*p = '\0';
|
1857 |
|
|
}
|
1858 |
|
|
|
1859 |
|
|
/*
|
1860 |
|
|
* Built-in mime types
|
1861 |
|
|
*/
|
1862 |
|
|
static const struct {
|
1863 |
|
|
const char *extension;
|
1864 |
|
|
size_t ext_len;
|
1865 |
|
|
const char *mime_type;
|
1866 |
|
|
size_t mime_type_len;
|
1867 |
|
|
} mime_types[] = {
|
1868 |
|
|
{".html", 5, "text/html", 9},
|
1869 |
|
|
{".htm", 4, "text/html", 9},
|
1870 |
|
|
{".shtm", 5, "text/html", 9},
|
1871 |
|
|
{".shtml", 6, "text/html", 9},
|
1872 |
|
|
{".css", 4, "text/css", 8},
|
1873 |
|
|
{".js", 3, "application/x-javascript", 24},
|
1874 |
|
|
{".ico", 4, "image/x-icon", 12},
|
1875 |
|
|
{".gif", 4, "image/gif", 9},
|
1876 |
|
|
{".jpg", 4, "image/jpeg", 10},
|
1877 |
|
|
{".jpeg", 5, "image/jpeg", 10},
|
1878 |
|
|
{".png", 4, "image/png", 9},
|
1879 |
|
|
{".svg", 4, "image/svg+xml", 13},
|
1880 |
|
|
{".torrent", 8, "application/x-bittorrent", 24},
|
1881 |
|
|
{".wav", 4, "audio/x-wav", 11},
|
1882 |
|
|
{".mp3", 4, "audio/x-mp3", 11},
|
1883 |
|
|
{".mid", 4, "audio/mid", 9},
|
1884 |
|
|
{".m3u", 4, "audio/x-mpegurl", 15},
|
1885 |
|
|
{".ram", 4, "audio/x-pn-realaudio", 20},
|
1886 |
|
|
{".ra", 3, "audio/x-pn-realaudio", 20},
|
1887 |
|
|
{".doc", 4, "application/msword", 19},
|
1888 |
|
|
{".exe", 4, "application/octet-stream", 24},
|
1889 |
|
|
{".zip", 4, "application/x-zip-compressed", 28},
|
1890 |
|
|
{".xls", 4, "application/excel", 17},
|
1891 |
|
|
{".tgz", 4, "application/x-tar-gz", 20},
|
1892 |
|
|
{".tar", 4, "application/x-tar", 17},
|
1893 |
|
|
{".gz", 3, "application/x-gunzip", 20},
|
1894 |
|
|
{".arj", 4, "application/x-arj-compressed", 28},
|
1895 |
|
|
{".rar", 4, "application/x-arj-compressed", 28},
|
1896 |
|
|
{".rtf", 4, "application/rtf", 15},
|
1897 |
|
|
{".pdf", 4, "application/pdf", 15},
|
1898 |
|
|
{".swf", 4, "application/x-shockwave-flash",29},
|
1899 |
|
|
{".mpg", 4, "video/mpeg", 10},
|
1900 |
|
|
{".mpeg", 5, "video/mpeg", 10},
|
1901 |
|
|
{".asf", 4, "video/x-ms-asf", 14},
|
1902 |
|
|
{".avi", 4, "video/x-msvideo", 15},
|
1903 |
|
|
{".bmp", 4, "image/bmp", 9},
|
1904 |
|
|
{NULL, 0, NULL, 0}
|
1905 |
|
|
};
|
1906 |
|
|
|
1907 |
|
|
/*
|
1908 |
|
|
* Look at the "path" extension and figure what mime type it has.
|
1909 |
|
|
* Store mime type in the vector.
|
1910 |
|
|
*/
|
1911 |
|
|
static void
|
1912 |
|
|
get_mime_type(struct mg_context *ctx, const char *path, struct vec *vec)
|
1913 |
|
|
{
|
1914 |
|
|
struct vec ext_vec, mime_vec;
|
1915 |
|
|
const char *list, *ext;
|
1916 |
|
|
size_t i, path_len;
|
1917 |
|
|
|
1918 |
|
|
path_len = strlen(path);
|
1919 |
|
|
|
1920 |
|
|
/*
|
1921 |
|
|
* Scan user-defined mime types first, in case user wants to
|
1922 |
|
|
* override default mime types.
|
1923 |
|
|
*/
|
1924 |
|
|
lock_option(ctx, OPT_MIME_TYPES);
|
1925 |
|
|
list = ctx->options[OPT_MIME_TYPES];
|
1926 |
|
|
while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
|
1927 |
|
|
/* ext now points to the path suffix */
|
1928 |
|
|
ext = path + path_len - ext_vec.len;
|
1929 |
|
|
if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
|
1930 |
|
|
*vec = mime_vec;
|
1931 |
|
|
unlock_option(ctx, OPT_MIME_TYPES);
|
1932 |
|
|
return;
|
1933 |
|
|
}
|
1934 |
|
|
}
|
1935 |
|
|
unlock_option(ctx, OPT_MIME_TYPES);
|
1936 |
|
|
|
1937 |
|
|
/* Now scan built-in mime types */
|
1938 |
|
|
for (i = 0; mime_types[i].extension != NULL; i++) {
|
1939 |
|
|
ext = path + (path_len - mime_types[i].ext_len);
|
1940 |
|
|
if (path_len > mime_types[i].ext_len &&
|
1941 |
|
|
mg_strcasecmp(ext, mime_types[i].extension) == 0) {
|
1942 |
|
|
vec->ptr = mime_types[i].mime_type;
|
1943 |
|
|
vec->len = mime_types[i].mime_type_len;
|
1944 |
|
|
return;
|
1945 |
|
|
}
|
1946 |
|
|
}
|
1947 |
|
|
|
1948 |
|
|
/* Nothing found. Fall back to text/plain */
|
1949 |
|
|
vec->ptr = "text/plain";
|
1950 |
|
|
vec->len = 10;
|
1951 |
|
|
}
|
1952 |
|
|
|
1953 |
|
|
#ifndef HAVE_MD5
|
1954 |
|
|
typedef struct MD5Context {
|
1955 |
|
|
uint32_t buf[4];
|
1956 |
|
|
uint32_t bits[2];
|
1957 |
|
|
unsigned char in[64];
|
1958 |
|
|
} MD5_CTX;
|
1959 |
|
|
|
1960 |
|
|
#if __BYTE_ORDER == 1234
|
1961 |
|
|
#define byteReverse(buf, len) /* Nothing */
|
1962 |
|
|
#else
|
1963 |
|
|
/*
|
1964 |
|
|
* Note: this code is harmless on little-endian machines.
|
1965 |
|
|
*/
|
1966 |
|
|
static void
|
1967 |
|
|
byteReverse(unsigned char *buf, unsigned longs)
|
1968 |
|
|
{
|
1969 |
|
|
uint32_t t;
|
1970 |
|
|
do {
|
1971 |
|
|
t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
|
1972 |
|
|
((unsigned) buf[1] << 8 | buf[0]);
|
1973 |
|
|
*(uint32_t *) buf = t;
|
1974 |
|
|
buf += 4;
|
1975 |
|
|
} while (--longs);
|
1976 |
|
|
}
|
1977 |
|
|
#endif /* __BYTE_ORDER */
|
1978 |
|
|
|
1979 |
|
|
/* The four core functions - F1 is optimized somewhat */
|
1980 |
|
|
|
1981 |
|
|
/* #define F1(x, y, z) (x & y | ~x & z) */
|
1982 |
|
|
#define F1(x, y, z) (z ^ (x & (y ^ z)))
|
1983 |
|
|
#define F2(x, y, z) F1(z, x, y)
|
1984 |
|
|
#define F3(x, y, z) (x ^ y ^ z)
|
1985 |
|
|
#define F4(x, y, z) (y ^ (x | ~z))
|
1986 |
|
|
|
1987 |
|
|
/* This is the central step in the MD5 algorithm. */
|
1988 |
|
|
#define MD5STEP(f, w, x, y, z, data, s) \
|
1989 |
|
|
( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
|
1990 |
|
|
|
1991 |
|
|
/*
|
1992 |
|
|
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
|
1993 |
|
|
* initialization constants.
|
1994 |
|
|
*/
|
1995 |
|
|
static void
|
1996 |
|
|
MD5Init(MD5_CTX *ctx)
|
1997 |
|
|
{
|
1998 |
|
|
ctx->buf[0] = 0x67452301;
|
1999 |
|
|
ctx->buf[1] = 0xefcdab89;
|
2000 |
|
|
ctx->buf[2] = 0x98badcfe;
|
2001 |
|
|
ctx->buf[3] = 0x10325476;
|
2002 |
|
|
|
2003 |
|
|
ctx->bits[0] = 0;
|
2004 |
|
|
ctx->bits[1] = 0;
|
2005 |
|
|
}
|
2006 |
|
|
|
2007 |
|
|
/*
|
2008 |
|
|
* The core of the MD5 algorithm, this alters an existing MD5 hash to
|
2009 |
|
|
* reflect the addition of 16 longwords of new data. MD5Update blocks
|
2010 |
|
|
* the data and converts bytes into longwords for this routine.
|
2011 |
|
|
*/
|
2012 |
|
|
static void
|
2013 |
|
|
MD5Transform(uint32_t buf[4], uint32_t const in[16])
|
2014 |
|
|
{
|
2015 |
|
|
register uint32_t a, b, c, d;
|
2016 |
|
|
|
2017 |
|
|
a = buf[0];
|
2018 |
|
|
b = buf[1];
|
2019 |
|
|
c = buf[2];
|
2020 |
|
|
d = buf[3];
|
2021 |
|
|
|
2022 |
|
|
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
|
2023 |
|
|
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
|
2024 |
|
|
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
|
2025 |
|
|
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
|
2026 |
|
|
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
|
2027 |
|
|
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
|
2028 |
|
|
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
|
2029 |
|
|
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
|
2030 |
|
|
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
|
2031 |
|
|
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
|
2032 |
|
|
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
|
2033 |
|
|
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
|
2034 |
|
|
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
|
2035 |
|
|
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
|
2036 |
|
|
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
|
2037 |
|
|
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
|
2038 |
|
|
|
2039 |
|
|
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
|
2040 |
|
|
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
|
2041 |
|
|
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
|
2042 |
|
|
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
|
2043 |
|
|
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
|
2044 |
|
|
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
|
2045 |
|
|
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
|
2046 |
|
|
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
|
2047 |
|
|
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
|
2048 |
|
|
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
|
2049 |
|
|
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
|
2050 |
|
|
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
|
2051 |
|
|
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
|
2052 |
|
|
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
|
2053 |
|
|
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
|
2054 |
|
|
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
|
2055 |
|
|
|
2056 |
|
|
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
|
2057 |
|
|
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
|
2058 |
|
|
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
|
2059 |
|
|
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
|
2060 |
|
|
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
|
2061 |
|
|
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
|
2062 |
|
|
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
|
2063 |
|
|
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
|
2064 |
|
|
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
|
2065 |
|
|
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
|
2066 |
|
|
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
|
2067 |
|
|
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
|
2068 |
|
|
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
|
2069 |
|
|
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
|
2070 |
|
|
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
|
2071 |
|
|
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
|
2072 |
|
|
|
2073 |
|
|
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
|
2074 |
|
|
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
|
2075 |
|
|
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
|
2076 |
|
|
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
|
2077 |
|
|
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
|
2078 |
|
|
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
|
2079 |
|
|
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
|
2080 |
|
|
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
|
2081 |
|
|
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
|
2082 |
|
|
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
|
2083 |
|
|
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
|
2084 |
|
|
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
|
2085 |
|
|
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
|
2086 |
|
|
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
|
2087 |
|
|
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
|
2088 |
|
|
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
|
2089 |
|
|
|
2090 |
|
|
buf[0] += a;
|
2091 |
|
|
buf[1] += b;
|
2092 |
|
|
buf[2] += c;
|
2093 |
|
|
buf[3] += d;
|
2094 |
|
|
}
|
2095 |
|
|
|
2096 |
|
|
/*
|
2097 |
|
|
* Update context to reflect the concatenation of another buffer full
|
2098 |
|
|
* of bytes.
|
2099 |
|
|
*/
|
2100 |
|
|
static void
|
2101 |
|
|
MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len)
|
2102 |
|
|
{
|
2103 |
|
|
uint32_t t;
|
2104 |
|
|
|
2105 |
|
|
/* Update bitcount */
|
2106 |
|
|
|
2107 |
|
|
t = ctx->bits[0];
|
2108 |
|
|
if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
|
2109 |
|
|
ctx->bits[1]++; /* Carry from low to high */
|
2110 |
|
|
ctx->bits[1] += len >> 29;
|
2111 |
|
|
|
2112 |
|
|
t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
|
2113 |
|
|
|
2114 |
|
|
/* Handle any leading odd-sized chunks */
|
2115 |
|
|
|
2116 |
|
|
if (t) {
|
2117 |
|
|
unsigned char *p = (unsigned char *) ctx->in + t;
|
2118 |
|
|
|
2119 |
|
|
t = 64 - t;
|
2120 |
|
|
if (len < t) {
|
2121 |
|
|
memcpy(p, buf, len);
|
2122 |
|
|
return;
|
2123 |
|
|
}
|
2124 |
|
|
memcpy(p, buf, t);
|
2125 |
|
|
byteReverse(ctx->in, 16);
|
2126 |
|
|
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
2127 |
|
|
buf += t;
|
2128 |
|
|
len -= t;
|
2129 |
|
|
}
|
2130 |
|
|
/* Process data in 64-byte chunks */
|
2131 |
|
|
|
2132 |
|
|
while (len >= 64) {
|
2133 |
|
|
memcpy(ctx->in, buf, 64);
|
2134 |
|
|
byteReverse(ctx->in, 16);
|
2135 |
|
|
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
2136 |
|
|
buf += 64;
|
2137 |
|
|
len -= 64;
|
2138 |
|
|
}
|
2139 |
|
|
|
2140 |
|
|
/* Handle any remaining bytes of data. */
|
2141 |
|
|
|
2142 |
|
|
memcpy(ctx->in, buf, len);
|
2143 |
|
|
}
|
2144 |
|
|
|
2145 |
|
|
/*
|
2146 |
|
|
* Final wrapup - pad to 64-byte boundary with the bit pattern
|
2147 |
|
|
* 1 0* (64-bit count of bits processed, MSB-first)
|
2148 |
|
|
*/
|
2149 |
|
|
static void
|
2150 |
|
|
MD5Final(unsigned char digest[16], MD5_CTX *ctx)
|
2151 |
|
|
{
|
2152 |
|
|
unsigned count;
|
2153 |
|
|
unsigned char *p;
|
2154 |
|
|
|
2155 |
|
|
/* Compute number of bytes mod 64 */
|
2156 |
|
|
count = (ctx->bits[0] >> 3) & 0x3F;
|
2157 |
|
|
|
2158 |
|
|
/* Set the first char of padding to 0x80. This is safe since there is
|
2159 |
|
|
always at least one byte free */
|
2160 |
|
|
p = ctx->in + count;
|
2161 |
|
|
*p++ = 0x80;
|
2162 |
|
|
|
2163 |
|
|
/* Bytes of padding needed to make 64 bytes */
|
2164 |
|
|
count = 64 - 1 - count;
|
2165 |
|
|
|
2166 |
|
|
/* Pad out to 56 mod 64 */
|
2167 |
|
|
if (count < 8) {
|
2168 |
|
|
/* Two lots of padding: Pad the first block to 64 bytes */
|
2169 |
|
|
memset(p, 0, count);
|
2170 |
|
|
byteReverse(ctx->in, 16);
|
2171 |
|
|
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
2172 |
|
|
|
2173 |
|
|
/* Now fill the next block with 56 bytes */
|
2174 |
|
|
memset(ctx->in, 0, 56);
|
2175 |
|
|
} else {
|
2176 |
|
|
/* Pad block to 56 bytes */
|
2177 |
|
|
memset(p, 0, count - 8);
|
2178 |
|
|
}
|
2179 |
|
|
byteReverse(ctx->in, 14);
|
2180 |
|
|
|
2181 |
|
|
/* Append length in bits and transform */
|
2182 |
|
|
((uint32_t *) ctx->in)[14] = ctx->bits[0];
|
2183 |
|
|
((uint32_t *) ctx->in)[15] = ctx->bits[1];
|
2184 |
|
|
|
2185 |
|
|
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
|
2186 |
|
|
byteReverse((unsigned char *) ctx->buf, 4);
|
2187 |
|
|
memcpy(digest, ctx->buf, 16);
|
2188 |
|
|
memset((char *) ctx, 0, sizeof(ctx)); /* In case it's sensitive */
|
2189 |
|
|
}
|
2190 |
|
|
#endif /* !HAVE_MD5 */
|
2191 |
|
|
|
2192 |
|
|
/*
|
2193 |
|
|
* Stringify binary data. Output buffer must be twice as big as input,
|
2194 |
|
|
* because each byte takes 2 bytes in string representation
|
2195 |
|
|
*/
|
2196 |
|
|
static void
|
2197 |
|
|
bin2str(char *to, const unsigned char *p, size_t len)
|
2198 |
|
|
{
|
2199 |
|
|
static const char *hex = "0123456789abcdef";
|
2200 |
|
|
|
2201 |
|
|
for (; len--; p++) {
|
2202 |
|
|
*to++ = hex[p[0] >> 4];
|
2203 |
|
|
*to++ = hex[p[0] & 0x0f];
|
2204 |
|
|
}
|
2205 |
|
|
*to = '\0';
|
2206 |
|
|
}
|
2207 |
|
|
|
2208 |
|
|
/*
|
2209 |
|
|
* Return stringified MD5 hash for list of vectors.
|
2210 |
|
|
* buf must point to 33-bytes long buffer
|
2211 |
|
|
*/
|
2212 |
|
|
static void
|
2213 |
|
|
mg_md5(char *buf, ...)
|
2214 |
|
|
{
|
2215 |
|
|
unsigned char hash[16];
|
2216 |
|
|
const char *p;
|
2217 |
|
|
va_list ap;
|
2218 |
|
|
MD5_CTX ctx;
|
2219 |
|
|
|
2220 |
|
|
MD5Init(&ctx);
|
2221 |
|
|
|
2222 |
|
|
va_start(ap, buf);
|
2223 |
|
|
while ((p = va_arg(ap, const char *)) != NULL)
|
2224 |
|
|
MD5Update(&ctx, (unsigned char *) p, (int) strlen(p));
|
2225 |
|
|
va_end(ap);
|
2226 |
|
|
|
2227 |
|
|
MD5Final(hash, &ctx);
|
2228 |
|
|
bin2str(buf, hash, sizeof(hash));
|
2229 |
|
|
}
|
2230 |
|
|
|
2231 |
|
|
/*
|
2232 |
|
|
* Check the user's password, return 1 if OK
|
2233 |
|
|
*/
|
2234 |
|
|
static bool_t
|
2235 |
|
|
check_password(const char *method, const char *ha1, const char *uri,
|
2236 |
|
|
const char *nonce, const char *nc, const char *cnonce,
|
2237 |
|
|
const char *qop, const char *response)
|
2238 |
|
|
{
|
2239 |
|
|
char ha2[32 + 1], expected_response[32 + 1];
|
2240 |
|
|
|
2241 |
|
|
/* XXX Due to a bug in MSIE, we do not compare the URI */
|
2242 |
|
|
/* Also, we do not check for authentication timeout */
|
2243 |
|
|
if (/*strcmp(dig->uri, c->ouri) != 0 || */
|
2244 |
|
|
strlen(response) != 32 /*||
|
2245 |
|
|
now - strtoul(dig->nonce, NULL, 10) > 3600 */)
|
2246 |
|
|
return (FALSE);
|
2247 |
|
|
|
2248 |
|
|
mg_md5(ha2, method, ":", uri, NULL);
|
2249 |
|
|
mg_md5(expected_response, ha1, ":", nonce, ":", nc,
|
2250 |
|
|
":", cnonce, ":", qop, ":", ha2, NULL);
|
2251 |
|
|
|
2252 |
|
|
return (!mg_strcasecmp(response, expected_response));
|
2253 |
|
|
}
|
2254 |
|
|
|
2255 |
|
|
/*
|
2256 |
|
|
* Use the global passwords file, if specified by auth_gpass option,
|
2257 |
|
|
* or search for .htpasswd in the requested directory.
|
2258 |
|
|
*/
|
2259 |
|
|
static FILE *
|
2260 |
|
|
open_auth_file(struct mg_connection *conn, const char *path)
|
2261 |
|
|
{
|
2262 |
|
|
struct mg_context *ctx = conn->ctx;
|
2263 |
|
|
char name[FILENAME_MAX];
|
2264 |
|
|
const char *p, *e;
|
2265 |
|
|
struct mgstat st;
|
2266 |
|
|
FILE *fp;
|
2267 |
|
|
|
2268 |
|
|
if (ctx->options[OPT_AUTH_GPASSWD] != NULL) {
|
2269 |
|
|
/* Use global passwords file */
|
2270 |
|
|
fp = mg_fopen(ctx->options[OPT_AUTH_GPASSWD], "r");
|
2271 |
|
|
if (fp == NULL)
|
2272 |
|
|
cry(fc(ctx), "fopen(%s): %s",
|
2273 |
|
|
ctx->options[OPT_AUTH_GPASSWD], strerror(ERRNO));
|
2274 |
|
|
} else if (!mg_stat(path, &st) && st.is_directory) {
|
2275 |
|
|
(void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
|
2276 |
|
|
path, DIRSEP, PASSWORDS_FILE_NAME);
|
2277 |
|
|
fp = mg_fopen(name, "r");
|
2278 |
|
|
} else {
|
2279 |
|
|
/*
|
2280 |
|
|
* Try to find .htpasswd in requested directory.
|
2281 |
|
|
* Given the path, create the path to .htpasswd file
|
2282 |
|
|
* in the same directory. Find the right-most
|
2283 |
|
|
* directory separator character first. That would be the
|
2284 |
|
|
* directory name. If directory separator character is not
|
2285 |
|
|
* found, 'e' will point to 'p'.
|
2286 |
|
|
*/
|
2287 |
|
|
for (p = path, e = p + strlen(p) - 1; e > p; e--)
|
2288 |
|
|
if (IS_DIRSEP_CHAR(*e))
|
2289 |
|
|
break;
|
2290 |
|
|
|
2291 |
|
|
/*
|
2292 |
|
|
* Make up the path by concatenating directory name and
|
2293 |
|
|
* .htpasswd file name.
|
2294 |
|
|
*/
|
2295 |
|
|
(void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
|
2296 |
|
|
(int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
|
2297 |
|
|
fp = mg_fopen(name, "r");
|
2298 |
|
|
}
|
2299 |
|
|
|
2300 |
|
|
return (fp);
|
2301 |
|
|
}
|
2302 |
|
|
|
2303 |
|
|
/*
|
2304 |
|
|
* Parsed Authorization: header
|
2305 |
|
|
*/
|
2306 |
|
|
struct ah {
|
2307 |
|
|
char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
|
2308 |
|
|
};
|
2309 |
|
|
|
2310 |
|
|
static bool_t
|
2311 |
|
|
parse_auth_header(struct mg_connection *conn, char *buf, size_t buf_size,
|
2312 |
|
|
struct ah *ah)
|
2313 |
|
|
{
|
2314 |
|
|
char *name, *value, *s;
|
2315 |
|
|
const char *auth_header;
|
2316 |
|
|
|
2317 |
|
|
if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
|
2318 |
|
|
mg_strncasecmp(auth_header, "Digest ", 7) != 0)
|
2319 |
|
|
return (FALSE);
|
2320 |
|
|
|
2321 |
|
|
/* Make modifiable copy of the auth header */
|
2322 |
|
|
(void) mg_strlcpy(buf, auth_header + 7, buf_size);
|
2323 |
|
|
|
2324 |
|
|
s = buf;
|
2325 |
|
|
(void) memset(ah, 0, sizeof(*ah));
|
2326 |
|
|
|
2327 |
|
|
/* Gobble initial spaces */
|
2328 |
|
|
while (isspace(* (unsigned char *) s))
|
2329 |
|
|
s++;
|
2330 |
|
|
|
2331 |
|
|
/* Parse authorization header */
|
2332 |
|
|
for (;;) {
|
2333 |
|
|
name = skip(&s, "=");
|
2334 |
|
|
value = skip(&s, ", ");
|
2335 |
|
|
|
2336 |
|
|
if (*value == '"') {
|
2337 |
|
|
value++;
|
2338 |
|
|
value[strlen(value) - 1] = '\0';
|
2339 |
|
|
} else if (*value == '\0') {
|
2340 |
|
|
break;
|
2341 |
|
|
}
|
2342 |
|
|
|
2343 |
|
|
if (!strcmp(name, "username")) {
|
2344 |
|
|
ah->user = value;
|
2345 |
|
|
} else if (!strcmp(name, "cnonce")) {
|
2346 |
|
|
ah->cnonce = value;
|
2347 |
|
|
} else if (!strcmp(name, "response")) {
|
2348 |
|
|
ah->response = value;
|
2349 |
|
|
} else if (!strcmp(name, "uri")) {
|
2350 |
|
|
ah->uri = value;
|
2351 |
|
|
} else if (!strcmp(name, "qop")) {
|
2352 |
|
|
ah->qop = value;
|
2353 |
|
|
} else if (!strcmp(name, "nc")) {
|
2354 |
|
|
ah->nc = value;
|
2355 |
|
|
} else if (!strcmp(name, "nonce")) {
|
2356 |
|
|
ah->nonce = value;
|
2357 |
|
|
}
|
2358 |
|
|
}
|
2359 |
|
|
|
2360 |
|
|
/* CGI needs it as REMOTE_USER */
|
2361 |
|
|
if (ah->user != NULL)
|
2362 |
|
|
conn->request_info.remote_user = mg_strdup(ah->user);
|
2363 |
|
|
|
2364 |
|
|
return (TRUE);
|
2365 |
|
|
}
|
2366 |
|
|
|
2367 |
|
|
/*
|
2368 |
|
|
* Authorize against the opened passwords file. Return 1 if authorized.
|
2369 |
|
|
*/
|
2370 |
|
|
static bool_t
|
2371 |
|
|
authorize(struct mg_connection *conn, FILE *fp)
|
2372 |
|
|
{
|
2373 |
|
|
struct ah ah;
|
2374 |
|
|
char line[256], f_user[256], domain[256], ha1[256],
|
2375 |
|
|
buf[MAX_REQUEST_SIZE];
|
2376 |
|
|
|
2377 |
|
|
if (!parse_auth_header(conn, buf, sizeof(buf), &ah))
|
2378 |
|
|
return (FALSE);
|
2379 |
|
|
|
2380 |
|
|
/* Loop over passwords file */
|
2381 |
|
|
while (fgets(line, sizeof(line), fp) != NULL) {
|
2382 |
|
|
|
2383 |
|
|
if (sscanf(line, "%[^:]:%[^:]:%s", f_user, domain, ha1) != 3)
|
2384 |
|
|
continue;
|
2385 |
|
|
|
2386 |
|
|
if (!strcmp(ah.user, f_user) &&
|
2387 |
|
|
!strcmp(domain, conn->ctx->options[OPT_AUTH_DOMAIN]))
|
2388 |
|
|
return (check_password(
|
2389 |
|
|
conn->request_info.request_method, ha1,
|
2390 |
|
|
ah.uri, ah.nonce, ah.nc, ah.cnonce,
|
2391 |
|
|
ah.qop, ah.response));
|
2392 |
|
|
}
|
2393 |
|
|
|
2394 |
|
|
return (FALSE);
|
2395 |
|
|
}
|
2396 |
|
|
|
2397 |
|
|
/*
|
2398 |
|
|
* Return TRUE if request is authorised, FALSE otherwise.
|
2399 |
|
|
*/
|
2400 |
|
|
static bool_t
|
2401 |
|
|
check_authorization(struct mg_connection *conn, const char *path)
|
2402 |
|
|
{
|
2403 |
|
|
FILE *fp;
|
2404 |
|
|
char fname[FILENAME_MAX];
|
2405 |
|
|
struct vec uri_vec, filename_vec;
|
2406 |
|
|
const char *list;
|
2407 |
|
|
bool_t authorized;
|
2408 |
|
|
|
2409 |
|
|
fp = NULL;
|
2410 |
|
|
authorized = TRUE;
|
2411 |
|
|
|
2412 |
|
|
lock_option(conn->ctx, OPT_PROTECT);
|
2413 |
|
|
list = conn->ctx->options[OPT_PROTECT];
|
2414 |
|
|
while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
|
2415 |
|
|
if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
|
2416 |
|
|
(void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
|
2417 |
|
|
filename_vec.len, filename_vec.ptr);
|
2418 |
|
|
if ((fp = mg_fopen(fname, "r")) == NULL)
|
2419 |
|
|
cry(conn, "%s: cannot open %s: %s",
|
2420 |
|
|
__func__, fname, strerror(errno));
|
2421 |
|
|
break;
|
2422 |
|
|
}
|
2423 |
|
|
}
|
2424 |
|
|
unlock_option(conn->ctx, OPT_PROTECT);
|
2425 |
|
|
|
2426 |
|
|
if (fp == NULL)
|
2427 |
|
|
fp = open_auth_file(conn, path);
|
2428 |
|
|
|
2429 |
|
|
if (fp != NULL) {
|
2430 |
|
|
authorized = authorize(conn, fp);
|
2431 |
|
|
(void) fclose(fp);
|
2432 |
|
|
}
|
2433 |
|
|
|
2434 |
|
|
return (authorized);
|
2435 |
|
|
}
|
2436 |
|
|
|
2437 |
|
|
static void
|
2438 |
|
|
send_authorization_request(struct mg_connection *conn)
|
2439 |
|
|
{
|
2440 |
|
|
conn->request_info.status_code = 401;
|
2441 |
|
|
(void) mg_printf(conn,
|
2442 |
|
|
"HTTP/1.1 401 Unauthorized\r\n"
|
2443 |
|
|
"WWW-Authenticate: Digest qop=\"auth\", "
|
2444 |
|
|
"realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
|
2445 |
|
|
conn->ctx->options[OPT_AUTH_DOMAIN], (unsigned long) time(NULL));
|
2446 |
|
|
}
|
2447 |
|
|
|
2448 |
|
|
static bool_t
|
2449 |
|
|
is_authorized_for_put(struct mg_connection *conn)
|
2450 |
|
|
{
|
2451 |
|
|
FILE *fp;
|
2452 |
|
|
int ret = FALSE;
|
2453 |
|
|
|
2454 |
|
|
if ((fp = mg_fopen(conn->ctx->options[OPT_AUTH_PUT], "r")) != NULL) {
|
2455 |
|
|
set_close_on_exec(fileno(fp));
|
2456 |
|
|
ret = authorize(conn, fp);
|
2457 |
|
|
(void) fclose(fp);
|
2458 |
|
|
}
|
2459 |
|
|
|
2460 |
|
|
return (ret);
|
2461 |
|
|
}
|
2462 |
|
|
|
2463 |
|
|
int
|
2464 |
|
|
mg_modify_passwords_file(struct mg_context *ctx, const char *fname,
|
2465 |
|
|
const char *user, const char *pass)
|
2466 |
|
|
{
|
2467 |
|
|
int found;
|
2468 |
|
|
char line[512], u[512], d[512], ha1[33], tmp[FILENAME_MAX];
|
2469 |
|
|
const char *domain;
|
2470 |
|
|
FILE *fp, *fp2;
|
2471 |
|
|
|
2472 |
|
|
found = 0;
|
2473 |
|
|
fp = fp2 = NULL;
|
2474 |
|
|
domain = ctx->options[OPT_AUTH_DOMAIN];
|
2475 |
|
|
|
2476 |
|
|
/* Regard empty password as no password - remove user record. */
|
2477 |
|
|
if (pass[0] == '\0')
|
2478 |
|
|
pass = NULL;
|
2479 |
|
|
|
2480 |
|
|
(void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
|
2481 |
|
|
|
2482 |
|
|
/* Create the file if does not exist */
|
2483 |
|
|
if ((fp = mg_fopen(fname, "a+")) != NULL)
|
2484 |
|
|
(void) fclose(fp);
|
2485 |
|
|
|
2486 |
|
|
/* Open the given file and temporary file */
|
2487 |
|
|
if ((fp = mg_fopen(fname, "r")) == NULL) {
|
2488 |
|
|
cry(fc(ctx), "Cannot open %s: %s", fname, strerror(errno));
|
2489 |
|
|
return (0);
|
2490 |
|
|
} else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
|
2491 |
|
|
cry(fc(ctx), "Cannot open %s: %s", tmp, strerror(errno));
|
2492 |
|
|
return (0);
|
2493 |
|
|
}
|
2494 |
|
|
|
2495 |
|
|
/* Copy the stuff to temporary file */
|
2496 |
|
|
while (fgets(line, sizeof(line), fp) != NULL) {
|
2497 |
|
|
|
2498 |
|
|
if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2)
|
2499 |
|
|
continue;
|
2500 |
|
|
|
2501 |
|
|
if (!strcmp(u, user) && !strcmp(d, domain)) {
|
2502 |
|
|
found++;
|
2503 |
|
|
if (pass != NULL) {
|
2504 |
|
|
mg_md5(ha1, user, ":", domain, ":", pass, NULL);
|
2505 |
|
|
fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
|
2506 |
|
|
}
|
2507 |
|
|
} else {
|
2508 |
|
|
(void) fprintf(fp2, "%s", line);
|
2509 |
|
|
}
|
2510 |
|
|
}
|
2511 |
|
|
|
2512 |
|
|
/* If new user, just add it */
|
2513 |
|
|
if (!found && pass != NULL) {
|
2514 |
|
|
mg_md5(ha1, user, ":", domain, ":", pass, NULL);
|
2515 |
|
|
(void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
|
2516 |
|
|
}
|
2517 |
|
|
|
2518 |
|
|
/* Close files */
|
2519 |
|
|
(void) fclose(fp);
|
2520 |
|
|
(void) fclose(fp2);
|
2521 |
|
|
|
2522 |
|
|
/* Put the temp file in place of real file */
|
2523 |
|
|
(void) mg_remove(fname);
|
2524 |
|
|
(void) mg_rename(tmp, fname);
|
2525 |
|
|
|
2526 |
|
|
return (0);
|
2527 |
|
|
}
|
2528 |
|
|
|
2529 |
|
|
struct de {
|
2530 |
|
|
struct mg_connection *conn;
|
2531 |
|
|
char *file_name;
|
2532 |
|
|
struct mgstat st;
|
2533 |
|
|
};
|
2534 |
|
|
|
2535 |
|
|
/*
|
2536 |
|
|
* This function is called from send_directory() and prints out
|
2537 |
|
|
* single directory entry.
|
2538 |
|
|
*/
|
2539 |
|
|
static void
|
2540 |
|
|
print_dir_entry(struct de *de)
|
2541 |
|
|
{
|
2542 |
|
|
char size[64], mod[64];
|
2543 |
|
|
|
2544 |
|
|
if (de->st.is_directory) {
|
2545 |
|
|
(void) mg_snprintf(de->conn,
|
2546 |
|
|
size, sizeof(size), "%s", "[DIRECTORY]");
|
2547 |
|
|
} else {
|
2548 |
|
|
/*
|
2549 |
|
|
* We use (signed) cast below because MSVC 6 compiler cannot
|
2550 |
|
|
* convert unsigned __int64 to double. Sigh.
|
2551 |
|
|
*/
|
2552 |
|
|
if (de->st.size < 1024)
|
2553 |
|
|
(void) mg_snprintf(de->conn, size, sizeof(size),
|
2554 |
|
|
"%lu", (unsigned long) de->st.size);
|
2555 |
|
|
else if (de->st.size < 1024 * 1024)
|
2556 |
|
|
(void) mg_snprintf(de->conn, size, sizeof(size),
|
2557 |
|
|
"%.1fk", (double) de->st.size / 1024.0);
|
2558 |
|
|
else if (de->st.size < 1024 * 1024 * 1024)
|
2559 |
|
|
(void) mg_snprintf(de->conn, size, sizeof(size),
|
2560 |
|
|
"%.1fM", (double) de->st.size / 1048576);
|
2561 |
|
|
else
|
2562 |
|
|
(void) mg_snprintf(de->conn, size, sizeof(size),
|
2563 |
|
|
"%.1fG", (double) de->st.size / 1073741824);
|
2564 |
|
|
}
|
2565 |
|
|
(void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M",
|
2566 |
|
|
localtime(&de->st.mtime));
|
2567 |
|
|
de->conn->num_bytes_sent += mg_printf(de->conn,
|
2568 |
|
|
"<tr><td><a href=\"%s%s\">%s%s</a></td>"
|
2569 |
|
|
"<td> %s</td><td> %s</td></tr>\n",
|
2570 |
|
|
de->conn->request_info.uri, de->file_name, de->file_name,
|
2571 |
|
|
de->st.is_directory ? "/" : "", mod, size);
|
2572 |
|
|
}
|
2573 |
|
|
|
2574 |
|
|
/*
|
2575 |
|
|
* This function is called from send_directory() and used for
|
2576 |
|
|
* sorting direcotory entries by size, or name, or modification time.
|
2577 |
|
|
*/
|
2578 |
|
|
static int
|
2579 |
|
|
compare_dir_entries(const void *p1, const void *p2)
|
2580 |
|
|
{
|
2581 |
|
|
const struct de *a = (struct de *) p1, *b = (struct de *) p2;
|
2582 |
|
|
const char *query_string = a->conn->request_info.query_string;
|
2583 |
|
|
int cmp_result = 0;
|
2584 |
|
|
|
2585 |
|
|
if (query_string == NULL)
|
2586 |
|
|
query_string = "na";
|
2587 |
|
|
|
2588 |
|
|
if (a->st.is_directory && !b->st.is_directory) {
|
2589 |
|
|
return (-1); /* Always put directories on top */
|
2590 |
|
|
} else if (!a->st.is_directory && b->st.is_directory) {
|
2591 |
|
|
return (1); /* Always put directories on top */
|
2592 |
|
|
} else if (*query_string == 'n') {
|
2593 |
|
|
cmp_result = strcmp(a->file_name, b->file_name);
|
2594 |
|
|
} else if (*query_string == 's') {
|
2595 |
|
|
cmp_result = a->st.size == b->st.size ? 0 :
|
2596 |
|
|
a->st.size > b->st.size ? 1 : -1;
|
2597 |
|
|
} else if (*query_string == 'd') {
|
2598 |
|
|
cmp_result = a->st.mtime == b->st.mtime ? 0 :
|
2599 |
|
|
a->st.mtime > b->st.mtime ? 1 : -1;
|
2600 |
|
|
}
|
2601 |
|
|
|
2602 |
|
|
return (query_string[1] == 'd' ? -cmp_result : cmp_result);
|
2603 |
|
|
}
|
2604 |
|
|
|
2605 |
|
|
/*
|
2606 |
|
|
* Send directory contents.
|
2607 |
|
|
*/
|
2608 |
|
|
static void
|
2609 |
|
|
send_directory(struct mg_connection *conn, const char *dir)
|
2610 |
|
|
{
|
2611 |
|
|
struct dirent *dp;
|
2612 |
|
|
DIR *dirp;
|
2613 |
|
|
struct de *entries = NULL;
|
2614 |
|
|
char path[FILENAME_MAX];
|
2615 |
|
|
int i, sort_direction, num_entries = 0, arr_size = 128;
|
2616 |
|
|
|
2617 |
|
|
if ((dirp = opendir(dir)) == NULL) {
|
2618 |
|
|
send_error(conn, 500, "Cannot open directory",
|
2619 |
|
|
"Error: opendir(%s): %s", path, strerror(ERRNO));
|
2620 |
|
|
return;
|
2621 |
|
|
}
|
2622 |
|
|
|
2623 |
|
|
(void) mg_printf(conn, "%s",
|
2624 |
|
|
"HTTP/1.1 200 OK\r\n"
|
2625 |
|
|
"Connection: close\r\n"
|
2626 |
|
|
"Content-Type: text/html; charset=utf-8\r\n\r\n");
|
2627 |
|
|
|
2628 |
|
|
sort_direction = conn->request_info.query_string != NULL &&
|
2629 |
|
|
conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
|
2630 |
|
|
|
2631 |
|
|
while ((dp = readdir(dirp)) != NULL) {
|
2632 |
|
|
|
2633 |
|
|
/* Do not show current dir and passwords file */
|
2634 |
|
|
if (!strcmp(dp->d_name, ".") ||
|
2635 |
|
|
!strcmp(dp->d_name, "..") ||
|
2636 |
|
|
!strcmp(dp->d_name, PASSWORDS_FILE_NAME))
|
2637 |
|
|
continue;
|
2638 |
|
|
|
2639 |
|
|
if (entries == NULL || num_entries >= arr_size) {
|
2640 |
|
|
arr_size *= 2;
|
2641 |
|
|
entries = (struct de *) realloc(entries,
|
2642 |
|
|
arr_size * sizeof(entries[0]));
|
2643 |
|
|
}
|
2644 |
|
|
|
2645 |
|
|
if (entries == NULL) {
|
2646 |
|
|
send_error(conn, 500, "Cannot open directory",
|
2647 |
|
|
"%s", "Error: cannot allocate memory");
|
2648 |
|
|
return;
|
2649 |
|
|
}
|
2650 |
|
|
|
2651 |
|
|
(void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
|
2652 |
|
|
dir, DIRSEP, dp->d_name);
|
2653 |
|
|
|
2654 |
|
|
(void) mg_stat(path, &entries[num_entries].st);
|
2655 |
|
|
entries[num_entries].conn = conn;
|
2656 |
|
|
entries[num_entries].file_name = mg_strdup(dp->d_name);
|
2657 |
|
|
num_entries++;
|
2658 |
|
|
}
|
2659 |
|
|
(void) closedir(dirp);
|
2660 |
|
|
|
2661 |
|
|
conn->num_bytes_sent += mg_printf(conn,
|
2662 |
|
|
"<html><head><title>Index of %s</title>"
|
2663 |
|
|
"<style>th {text-align: left;}</style></head>"
|
2664 |
|
|
"<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
|
2665 |
|
|
"<tr><th><a href=\"?n%c\">Name</a></th>"
|
2666 |
|
|
"<th><a href=\"?d%c\">Modified</a></th>"
|
2667 |
|
|
"<th><a href=\"?s%c\">Size</a></th></tr>"
|
2668 |
|
|
"<tr><td colspan=\"3\"><hr></td></tr>",
|
2669 |
|
|
conn->request_info.uri, conn->request_info.uri,
|
2670 |
|
|
sort_direction, sort_direction, sort_direction);
|
2671 |
|
|
|
2672 |
|
|
/* Print first entry - link to a parent directory */
|
2673 |
|
|
conn->num_bytes_sent += mg_printf(conn,
|
2674 |
|
|
"<tr><td><a href=\"%s%s\">%s</a></td>"
|
2675 |
|
|
"<td> %s</td><td> %s</td></tr>\n",
|
2676 |
|
|
conn->request_info.uri, "..", "Parent directory", "-", "-");
|
2677 |
|
|
|
2678 |
|
|
/* Sort and print directory entries */
|
2679 |
|
|
qsort(entries, num_entries, sizeof(entries[0]), compare_dir_entries);
|
2680 |
|
|
for (i = 0; i < num_entries; i++) {
|
2681 |
|
|
print_dir_entry(&entries[i]);
|
2682 |
|
|
free(entries[i].file_name);
|
2683 |
|
|
}
|
2684 |
|
|
free(entries);
|
2685 |
|
|
|
2686 |
|
|
conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
|
2687 |
|
|
conn->request_info.status_code = 200;
|
2688 |
|
|
}
|
2689 |
|
|
|
2690 |
|
|
/*
|
2691 |
|
|
* Send len bytes from the opened file to the client.
|
2692 |
|
|
*/
|
2693 |
|
|
static void
|
2694 |
|
|
send_opened_file_stream(struct mg_connection *conn, FILE *fp, uint64_t len)
|
2695 |
|
|
{
|
2696 |
|
|
char buf[BUFSIZ];
|
2697 |
|
|
int to_read, num_read, num_written;
|
2698 |
|
|
|
2699 |
|
|
while (len > 0) {
|
2700 |
|
|
/* Calculate how much to read from the file in the buffer */
|
2701 |
|
|
to_read = sizeof(buf);
|
2702 |
|
|
if ((uint64_t) to_read > len)
|
2703 |
|
|
to_read = (int) len;
|
2704 |
|
|
|
2705 |
|
|
/* Read from file, exit the loop on error */
|
2706 |
|
|
if ((num_read = fread(buf, 1, to_read, fp)) == 0)
|
2707 |
|
|
break;
|
2708 |
|
|
|
2709 |
|
|
/* Send read bytes to the client, exit the loop on error */
|
2710 |
|
|
if ((num_written = mg_write(conn, buf, num_read)) != num_read)
|
2711 |
|
|
break;
|
2712 |
|
|
|
2713 |
|
|
/* Both read and were successful, adjust counters */
|
2714 |
|
|
conn->num_bytes_sent += num_written;
|
2715 |
|
|
len -= num_written;
|
2716 |
|
|
}
|
2717 |
|
|
}
|
2718 |
|
|
|
2719 |
|
|
/*
|
2720 |
|
|
* Send regular file contents.
|
2721 |
|
|
*/
|
2722 |
|
|
static void
|
2723 |
|
|
send_file(struct mg_connection *conn, const char *path, struct mgstat *stp)
|
2724 |
|
|
{
|
2725 |
|
|
char date[64], lm[64], etag[64], range[64];
|
2726 |
|
|
const char *fmt = "%a, %d %b %Y %H:%M:%S %Z", *msg = "OK", *hdr;
|
2727 |
|
|
time_t curtime = time(NULL);
|
2728 |
|
|
uint64_t cl, r1, r2;
|
2729 |
|
|
struct vec mime_vec;
|
2730 |
|
|
FILE *fp;
|
2731 |
|
|
int n;
|
2732 |
|
|
|
2733 |
|
|
get_mime_type(conn->ctx, path, &mime_vec);
|
2734 |
|
|
cl = stp->size;
|
2735 |
|
|
conn->request_info.status_code = 200;
|
2736 |
|
|
range[0] = '\0';
|
2737 |
|
|
|
2738 |
|
|
if ((fp = mg_fopen(path, "rb")) == NULL) {
|
2739 |
|
|
send_error(conn, 500, http_500_error,
|
2740 |
|
|
"fopen(%s): %s", path, strerror(ERRNO));
|
2741 |
|
|
return;
|
2742 |
|
|
}
|
2743 |
|
|
set_close_on_exec(fileno(fp));
|
2744 |
|
|
|
2745 |
|
|
/* If Range: header specified, act accordingly */
|
2746 |
|
|
r1 = r2 = 0;
|
2747 |
|
|
hdr = mg_get_header(conn, "Range");
|
2748 |
|
|
if (hdr != NULL && (n = sscanf(hdr,
|
2749 |
|
|
"bytes=%" UINT64_FMT "u-%" UINT64_FMT "u", &r1, &r2)) > 0) {
|
2750 |
|
|
conn->request_info.status_code = 206;
|
2751 |
|
|
(void) fseeko(fp, (off_t) r1, SEEK_SET);
|
2752 |
|
|
cl = n == 2 ? r2 - r1 + 1: cl - r1;
|
2753 |
|
|
(void) mg_snprintf(conn, range, sizeof(range),
|
2754 |
|
|
"Content-Range: bytes "
|
2755 |
|
|
"%" UINT64_FMT "u-%"
|
2756 |
|
|
UINT64_FMT "u/%" UINT64_FMT "u\r\n",
|
2757 |
|
|
r1, r1 + cl - 1, stp->size);
|
2758 |
|
|
msg = "Partial Content";
|
2759 |
|
|
}
|
2760 |
|
|
|
2761 |
|
|
/* Prepare Etag, Date, Last-Modified headers */
|
2762 |
|
|
(void) strftime(date, sizeof(date), fmt, localtime(&curtime));
|
2763 |
|
|
(void) strftime(lm, sizeof(lm), fmt, localtime(&stp->mtime));
|
2764 |
|
|
(void) mg_snprintf(conn, etag, sizeof(etag), "%lx.%lx",
|
2765 |
|
|
(unsigned long) stp->mtime, (unsigned long) stp->size);
|
2766 |
|
|
|
2767 |
|
|
(void) mg_printf(conn,
|
2768 |
|
|
"HTTP/1.1 %d %s\r\n"
|
2769 |
|
|
"Date: %s\r\n"
|
2770 |
|
|
"Last-Modified: %s\r\n"
|
2771 |
|
|
"Etag: \"%s\"\r\n"
|
2772 |
|
|
"Content-Type: %.*s\r\n"
|
2773 |
|
|
"Content-Length: %" UINT64_FMT "u\r\n"
|
2774 |
|
|
"Connection: close\r\n"
|
2775 |
|
|
"Accept-Ranges: bytes\r\n"
|
2776 |
|
|
"%s\r\n",
|
2777 |
|
|
conn->request_info.status_code, msg, date, lm, etag,
|
2778 |
|
|
mime_vec.len, mime_vec.ptr, cl, range);
|
2779 |
|
|
|
2780 |
|
|
if (strcmp(conn->request_info.request_method, "HEAD") != 0)
|
2781 |
|
|
send_opened_file_stream(conn, fp, cl);
|
2782 |
|
|
(void) fclose(fp);
|
2783 |
|
|
}
|
2784 |
|
|
|
2785 |
|
|
/*
|
2786 |
|
|
* Parse HTTP headers from the given buffer, advance buffer to the point
|
2787 |
|
|
* where parsing stopped.
|
2788 |
|
|
*/
|
2789 |
|
|
static void
|
2790 |
|
|
parse_http_headers(char **buf, struct mg_request_info *ri)
|
2791 |
|
|
{
|
2792 |
|
|
int i;
|
2793 |
|
|
|
2794 |
|
|
for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
|
2795 |
|
|
ri->http_headers[i].name = skip(buf, ": ");
|
2796 |
|
|
ri->http_headers[i].value = skip(buf, "\r\n");
|
2797 |
|
|
if (ri->http_headers[i].name[0] == '\0')
|
2798 |
|
|
break;
|
2799 |
|
|
ri->num_headers = i + 1;
|
2800 |
|
|
}
|
2801 |
|
|
}
|
2802 |
|
|
|
2803 |
|
|
static bool_t
|
2804 |
|
|
is_known_http_method(const char *method)
|
2805 |
|
|
{
|
2806 |
|
|
return (!strcmp(method, "GET") ||
|
2807 |
|
|
!strcmp(method, "POST") ||
|
2808 |
|
|
!strcmp(method, "HEAD") ||
|
2809 |
|
|
!strcmp(method, "PUT") ||
|
2810 |
|
|
!strcmp(method, "DELETE"));
|
2811 |
|
|
}
|
2812 |
|
|
|
2813 |
|
|
/*
|
2814 |
|
|
* Parse HTTP request, fill in mg_request_info structure.
|
2815 |
|
|
*/
|
2816 |
|
|
static bool_t
|
2817 |
|
|
parse_http_request(char *buf, struct mg_request_info *ri, const struct usa *usa)
|
2818 |
|
|
{
|
2819 |
|
|
char *http_version;
|
2820 |
|
|
int n, success_code = FALSE;
|
2821 |
|
|
|
2822 |
|
|
ri->request_method = skip(&buf, " ");
|
2823 |
|
|
ri->uri = skip(&buf, " ");
|
2824 |
|
|
http_version = skip(&buf, "\r\n");
|
2825 |
|
|
|
2826 |
|
|
if (is_known_http_method(ri->request_method) &&
|
2827 |
|
|
ri->uri[0] == '/' &&
|
2828 |
|
|
sscanf(http_version, "HTTP/%d.%d%n",
|
2829 |
|
|
&ri->http_version_major, &ri->http_version_minor, &n) == 2 &&
|
2830 |
|
|
http_version[n] == '\0') {
|
2831 |
|
|
parse_http_headers(&buf, ri);
|
2832 |
|
|
ri->remote_port = ntohs(usa->u.sin.sin_port);
|
2833 |
|
|
(void) memcpy(&ri->remote_ip, &usa->u.sin.sin_addr.s_addr, 4);
|
2834 |
|
|
ri->remote_ip = ntohl(ri->remote_ip);
|
2835 |
|
|
success_code = TRUE;
|
2836 |
|
|
}
|
2837 |
|
|
|
2838 |
|
|
return (success_code);
|
2839 |
|
|
}
|
2840 |
|
|
|
2841 |
|
|
/*
|
2842 |
|
|
* Keep reading the input (either opened file descriptor fd, or socket sock,
|
2843 |
|
|
* or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
|
2844 |
|
|
* buffer (which marks the end of HTTP request). Buffer buf may already
|
2845 |
|
|
* have some data. The length of the data is stored in nread.
|
2846 |
|
|
* Upon every read operation, increase nread by the number of bytes read.
|
2847 |
|
|
*/
|
2848 |
|
|
static int
|
2849 |
|
|
read_request(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int bufsiz, int *nread)
|
2850 |
|
|
{
|
2851 |
|
|
int n, request_len;
|
2852 |
|
|
|
2853 |
|
|
request_len = 0;
|
2854 |
|
|
while (*nread < bufsiz && request_len == 0) {
|
2855 |
|
|
n = pull(fp, sock, ssl, buf + *nread, bufsiz - *nread);
|
2856 |
|
|
if (n <= 0) {
|
2857 |
|
|
break;
|
2858 |
|
|
} else {
|
2859 |
|
|
*nread += n;
|
2860 |
|
|
request_len = get_request_len(buf, (size_t) *nread);
|
2861 |
|
|
}
|
2862 |
|
|
}
|
2863 |
|
|
|
2864 |
|
|
return (request_len);
|
2865 |
|
|
}
|
2866 |
|
|
|
2867 |
|
|
/*
|
2868 |
|
|
* For given directory path, substitute it to valid index file.
|
2869 |
|
|
* Return 0 if index file has been found, -1 if not found.
|
2870 |
|
|
* If the file is found, it's stats is returned in stp.
|
2871 |
|
|
*/
|
2872 |
|
|
static bool_t
|
2873 |
|
|
substitute_index_file(struct mg_connection *conn,
|
2874 |
|
|
char *path, size_t path_len, struct mgstat *stp)
|
2875 |
|
|
{
|
2876 |
|
|
const char *list;
|
2877 |
|
|
struct mgstat st;
|
2878 |
|
|
struct vec filename_vec;
|
2879 |
|
|
size_t n;
|
2880 |
|
|
bool_t found;
|
2881 |
|
|
|
2882 |
|
|
n = strlen(path);
|
2883 |
|
|
|
2884 |
|
|
/*
|
2885 |
|
|
* The 'path' given to us points to the directory. Remove all trailing
|
2886 |
|
|
* directory separator characters from the end of the path, and
|
2887 |
|
|
* then append single directory separator character.
|
2888 |
|
|
*/
|
2889 |
|
|
while (n > 0 && IS_DIRSEP_CHAR(path[n - 1]))
|
2890 |
|
|
n--;
|
2891 |
|
|
path[n] = DIRSEP;
|
2892 |
|
|
|
2893 |
|
|
/*
|
2894 |
|
|
* Traverse index files list. For each entry, append it to the given
|
2895 |
|
|
* path and see if the file exists. If it exists, break the loop
|
2896 |
|
|
*/
|
2897 |
|
|
lock_option(conn->ctx, OPT_INDEX_FILES);
|
2898 |
|
|
list = conn->ctx->options[OPT_INDEX_FILES];
|
2899 |
|
|
found = FALSE;
|
2900 |
|
|
|
2901 |
|
|
while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
|
2902 |
|
|
|
2903 |
|
|
/* Ignore too long entries that may overflow path buffer */
|
2904 |
|
|
if (filename_vec.len > path_len - n)
|
2905 |
|
|
continue;
|
2906 |
|
|
|
2907 |
|
|
/* Prepare full path to the index file */
|
2908 |
|
|
(void) mg_strlcpy(path + n + 1,
|
2909 |
|
|
filename_vec.ptr, filename_vec.len + 1);
|
2910 |
|
|
|
2911 |
|
|
/* Does it exist ? */
|
2912 |
|
|
if (mg_stat(path, &st) == 0) {
|
2913 |
|
|
/* Yes it does, break the loop */
|
2914 |
|
|
*stp = st;
|
2915 |
|
|
found = TRUE;
|
2916 |
|
|
break;
|
2917 |
|
|
}
|
2918 |
|
|
}
|
2919 |
|
|
unlock_option(conn->ctx, OPT_INDEX_FILES);
|
2920 |
|
|
|
2921 |
|
|
/* If no index file exists, restore directory path */
|
2922 |
|
|
if (found == FALSE)
|
2923 |
|
|
path[n] = '\0';
|
2924 |
|
|
|
2925 |
|
|
return (found);
|
2926 |
|
|
}
|
2927 |
|
|
|
2928 |
|
|
static void
|
2929 |
|
|
remove_callback(struct mg_context *ctx,
|
2930 |
|
|
const char *uri_regex, int status_code, bool_t is_auth)
|
2931 |
|
|
{
|
2932 |
|
|
struct callback *cb;
|
2933 |
|
|
int i;
|
2934 |
|
|
|
2935 |
|
|
for (i = 0; i < ctx->num_callbacks; i++) {
|
2936 |
|
|
cb = ctx->callbacks + i;
|
2937 |
|
|
if ((uri_regex != NULL && cb->uri_regex != NULL &&
|
2938 |
|
|
((is_auth && cb->is_auth) || (!is_auth && !cb->is_auth)) &&
|
2939 |
|
|
!strcmp(uri_regex, cb->uri_regex)) || (uri_regex == NULL &&
|
2940 |
|
|
(cb->status_code == 0 ||
|
2941 |
|
|
cb->status_code == status_code))) {
|
2942 |
|
|
(void) memmove(cb, cb + 1,
|
2943 |
|
|
(char *) (ctx->callbacks + ctx->num_callbacks) -
|
2944 |
|
|
(char *) (cb + 1));
|
2945 |
|
|
break;
|
2946 |
|
|
}
|
2947 |
|
|
}
|
2948 |
|
|
}
|
2949 |
|
|
|
2950 |
|
|
static void
|
2951 |
|
|
add_callback(struct mg_context *ctx, const char *uri_regex, int status_code,
|
2952 |
|
|
mg_callback_t func, bool_t is_auth, void *user_data)
|
2953 |
|
|
{
|
2954 |
|
|
struct callback *cb;
|
2955 |
|
|
|
2956 |
|
|
pthread_mutex_lock(&ctx->bind_mutex);
|
2957 |
|
|
if (func == NULL) {
|
2958 |
|
|
remove_callback(ctx, uri_regex, status_code, is_auth);
|
2959 |
|
|
} else if (ctx->num_callbacks >= (int) ARRAY_SIZE(ctx->callbacks) - 1) {
|
2960 |
|
|
cry(fc(ctx), "Too many callbacks! Increase MAX_CALLBACKS.");
|
2961 |
|
|
} else {
|
2962 |
|
|
cb = &ctx->callbacks[ctx->num_callbacks];
|
2963 |
|
|
cb->uri_regex = uri_regex ? mg_strdup(uri_regex) : NULL;
|
2964 |
|
|
cb->func = func;
|
2965 |
|
|
cb->is_auth = is_auth;
|
2966 |
|
|
cb->status_code = status_code;
|
2967 |
|
|
cb->user_data = user_data;
|
2968 |
|
|
ctx->num_callbacks++;
|
2969 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: uri %s code %d",
|
2970 |
|
|
__func__, uri_regex ? uri_regex : "NULL", status_code));
|
2971 |
|
|
}
|
2972 |
|
|
pthread_mutex_unlock(&ctx->bind_mutex);
|
2973 |
|
|
}
|
2974 |
|
|
|
2975 |
|
|
void
|
2976 |
|
|
mg_set_uri_callback(struct mg_context *ctx, const char *uri_regex,
|
2977 |
|
|
mg_callback_t func, void *user_data)
|
2978 |
|
|
{
|
2979 |
|
|
assert(uri_regex != NULL);
|
2980 |
|
|
add_callback(ctx, uri_regex, -1, func, FALSE, user_data);
|
2981 |
|
|
}
|
2982 |
|
|
|
2983 |
|
|
void
|
2984 |
|
|
mg_set_error_callback(struct mg_context *ctx, int error_code,
|
2985 |
|
|
mg_callback_t func, void *user_data)
|
2986 |
|
|
{
|
2987 |
|
|
assert(error_code >= 0 && error_code < 1000);
|
2988 |
|
|
add_callback(ctx, NULL, error_code, func, FALSE, user_data);
|
2989 |
|
|
}
|
2990 |
|
|
|
2991 |
|
|
void
|
2992 |
|
|
mg_set_auth_callback(struct mg_context *ctx, const char *uri_regex,
|
2993 |
|
|
mg_callback_t func, void *user_data)
|
2994 |
|
|
{
|
2995 |
|
|
assert(uri_regex != NULL);
|
2996 |
|
|
add_callback(ctx, uri_regex, -1, func, TRUE, user_data);
|
2997 |
|
|
}
|
2998 |
|
|
|
2999 |
|
|
/*
|
3000 |
|
|
* Return True if we should reply 304 Not Modified.
|
3001 |
|
|
*/
|
3002 |
|
|
static bool_t
|
3003 |
|
|
is_not_modified(const struct mg_connection *conn, const struct mgstat *stp)
|
3004 |
|
|
{
|
3005 |
|
|
const char *ims = mg_get_header(conn, "If-Modified-Since");
|
3006 |
|
|
return (ims != NULL && stp->mtime < date_to_epoch(ims));
|
3007 |
|
|
}
|
3008 |
|
|
|
3009 |
|
|
static bool_t
|
3010 |
|
|
append_chunk(struct mg_request_info *ri, FILE *fp, const char *buf, int len)
|
3011 |
|
|
{
|
3012 |
|
|
bool_t ret_code = TRUE;
|
3013 |
|
|
|
3014 |
|
|
if (fp == NULL) {
|
3015 |
|
|
/* TODO: check for NULL here */
|
3016 |
|
|
ri->post_data = (char *) realloc(ri->post_data,
|
3017 |
|
|
ri->post_data_len + len);
|
3018 |
|
|
(void) memcpy(ri->post_data + ri->post_data_len, buf, len);
|
3019 |
|
|
ri->post_data_len += len;
|
3020 |
|
|
} else if (push(fp, INVALID_SOCKET,
|
3021 |
|
|
NULL, buf, (uint64_t) len) != (uint64_t) len) {
|
3022 |
|
|
ret_code = FALSE;
|
3023 |
|
|
}
|
3024 |
|
|
|
3025 |
|
|
return (ret_code);
|
3026 |
|
|
}
|
3027 |
|
|
|
3028 |
|
|
static bool_t
|
3029 |
|
|
handle_request_body(struct mg_connection *conn, FILE *fp)
|
3030 |
|
|
{
|
3031 |
|
|
struct mg_request_info *ri = &conn->request_info;
|
3032 |
|
|
const char *expect, *tmp;
|
3033 |
|
|
uint64_t content_len;
|
3034 |
|
|
char buf[BUFSIZ];
|
3035 |
|
|
int to_read, nread, already_read;
|
3036 |
|
|
bool_t success_code = FALSE;
|
3037 |
|
|
|
3038 |
|
|
content_len = get_content_length(conn);
|
3039 |
|
|
expect = mg_get_header(conn, "Expect");
|
3040 |
|
|
|
3041 |
|
|
if (content_len == UNKNOWN_CONTENT_LENGTH) {
|
3042 |
|
|
send_error(conn, 411, "Length Required", "");
|
3043 |
|
|
} else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
|
3044 |
|
|
send_error(conn, 417, "Expectation Failed", "");
|
3045 |
|
|
} else {
|
3046 |
|
|
if (expect != NULL)
|
3047 |
|
|
(void) mg_printf(conn, "HTTP/1.1 100 Continue\r\n\r\n");
|
3048 |
|
|
|
3049 |
|
|
already_read = ri->post_data_len;
|
3050 |
|
|
assert(already_read >= 0);
|
3051 |
|
|
|
3052 |
|
|
if (content_len <= (uint64_t) already_read) {
|
3053 |
|
|
ri->post_data_len = (int) content_len;
|
3054 |
|
|
/*
|
3055 |
|
|
* If fp is NULL, this is embedded mode, and we do not
|
3056 |
|
|
* have to do anything: POST data is already there,
|
3057 |
|
|
* no need to allocate a buffer and copy it in.
|
3058 |
|
|
* If fp != NULL, we need to write the data.
|
3059 |
|
|
*/
|
3060 |
|
|
success_code = fp == NULL || (push(fp, INVALID_SOCKET,
|
3061 |
|
|
NULL, ri->post_data, content_len) == content_len) ?
|
3062 |
|
|
TRUE : FALSE;
|
3063 |
|
|
} else {
|
3064 |
|
|
|
3065 |
|
|
if (fp == NULL) {
|
3066 |
|
|
conn->free_post_data = TRUE;
|
3067 |
|
|
tmp = ri->post_data;
|
3068 |
|
|
/* +1 in case if already_read == 0 */
|
3069 |
|
|
ri->post_data = (char*)malloc(already_read + 1);
|
3070 |
|
|
(void) memcpy(ri->post_data, tmp, already_read);
|
3071 |
|
|
} else {
|
3072 |
|
|
(void) push(fp, INVALID_SOCKET, NULL,
|
3073 |
|
|
ri->post_data, (uint64_t) already_read);
|
3074 |
|
|
}
|
3075 |
|
|
|
3076 |
|
|
content_len -= already_read;
|
3077 |
|
|
|
3078 |
|
|
while (content_len > 0) {
|
3079 |
|
|
to_read = sizeof(buf);
|
3080 |
|
|
if ((uint64_t) to_read > content_len)
|
3081 |
|
|
to_read = (int) content_len;
|
3082 |
|
|
nread = pull(NULL, conn->client.sock,
|
3083 |
|
|
conn->ssl, buf, to_read);
|
3084 |
|
|
if (nread <= 0)
|
3085 |
|
|
break;
|
3086 |
|
|
if (!append_chunk(ri, fp, buf, nread))
|
3087 |
|
|
break;
|
3088 |
|
|
content_len -= nread;
|
3089 |
|
|
}
|
3090 |
|
|
success_code = content_len == 0 ? TRUE : FALSE;
|
3091 |
|
|
}
|
3092 |
|
|
|
3093 |
|
|
/* Each error code path in this function must send an error */
|
3094 |
|
|
if (success_code != TRUE)
|
3095 |
|
|
send_error(conn, 577, http_500_error,
|
3096 |
|
|
"%s", "Error handling body data");
|
3097 |
|
|
}
|
3098 |
|
|
|
3099 |
|
|
return (success_code);
|
3100 |
|
|
}
|
3101 |
|
|
|
3102 |
|
|
#if !defined(NO_CGI)
|
3103 |
|
|
|
3104 |
|
|
/*
|
3105 |
|
|
* This structure helps to create an environment for the spawned CGI program.
|
3106 |
|
|
* Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
|
3107 |
|
|
* last element must be NULL.
|
3108 |
|
|
* However, on Windows there is a requirement that all these VARIABLE=VALUE\0
|
3109 |
|
|
* strings must reside in a contiguous buffer. The end of the buffer is
|
3110 |
|
|
* marked by two '\0' characters.
|
3111 |
|
|
* We satisfy both worlds: we create an envp array (which is vars), all
|
3112 |
|
|
* entries are actually pointers inside buf.
|
3113 |
|
|
*/
|
3114 |
|
|
struct cgi_env_block {
|
3115 |
|
|
struct mg_connection *conn;
|
3116 |
|
|
char buf[CGI_ENVIRONMENT_SIZE]; /* Environment buffer */
|
3117 |
|
|
int len; /* Space taken */
|
3118 |
|
|
char *vars[MAX_CGI_ENVIR_VARS]; /* char **envp */
|
3119 |
|
|
int nvars; /* Number of variables */
|
3120 |
|
|
};
|
3121 |
|
|
|
3122 |
|
|
/*
|
3123 |
|
|
* Append VARIABLE=VALUE\0 string to the buffer, and add a respective
|
3124 |
|
|
* pointer into the vars array.
|
3125 |
|
|
*/
|
3126 |
|
|
static char *
|
3127 |
|
|
addenv(struct cgi_env_block *block, const char *fmt, ...)
|
3128 |
|
|
{
|
3129 |
|
|
int n, space;
|
3130 |
|
|
char *added;
|
3131 |
|
|
va_list ap;
|
3132 |
|
|
|
3133 |
|
|
/* Calculate how much space is left in the buffer */
|
3134 |
|
|
space = sizeof(block->buf) - block->len - 2;
|
3135 |
|
|
assert(space >= 0);
|
3136 |
|
|
|
3137 |
|
|
/* Make a pointer to the free space int the buffer */
|
3138 |
|
|
added = block->buf + block->len;
|
3139 |
|
|
|
3140 |
|
|
/* Copy VARIABLE=VALUE\0 string into the free space */
|
3141 |
|
|
va_start(ap, fmt);
|
3142 |
|
|
n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
|
3143 |
|
|
va_end(ap);
|
3144 |
|
|
|
3145 |
|
|
/* Make sure we do not overflow buffer and the envp array */
|
3146 |
|
|
if (n > 0 && n < space &&
|
3147 |
|
|
block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
|
3148 |
|
|
/* Append a pointer to the added string into the envp array */
|
3149 |
|
|
block->vars[block->nvars++] = block->buf + block->len;
|
3150 |
|
|
/* Bump up used length counter. Include \0 terminator */
|
3151 |
|
|
block->len += n + 1;
|
3152 |
|
|
}
|
3153 |
|
|
|
3154 |
|
|
return (added);
|
3155 |
|
|
}
|
3156 |
|
|
|
3157 |
|
|
static void
|
3158 |
|
|
prepare_cgi_environment(struct mg_connection *conn, const char *prog,
|
3159 |
|
|
struct cgi_env_block *blk)
|
3160 |
|
|
{
|
3161 |
|
|
const char *s, *script_filename, *root;
|
3162 |
|
|
struct vec var_vec;
|
3163 |
|
|
char *p;
|
3164 |
|
|
int i;
|
3165 |
|
|
|
3166 |
|
|
blk->len = blk->nvars = 0;
|
3167 |
|
|
blk->conn = conn;
|
3168 |
|
|
|
3169 |
|
|
/* SCRIPT_FILENAME */
|
3170 |
|
|
script_filename = prog;
|
3171 |
|
|
if ((s = strrchr(prog, '/')) != NULL)
|
3172 |
|
|
script_filename = s + 1;
|
3173 |
|
|
|
3174 |
|
|
lock_option(conn->ctx, OPT_ROOT);
|
3175 |
|
|
root = conn->ctx->options[OPT_ROOT];
|
3176 |
|
|
addenv(blk, "SERVER_NAME=%s", conn->ctx->options[OPT_AUTH_DOMAIN]);
|
3177 |
|
|
unlock_option(conn->ctx, OPT_ROOT);
|
3178 |
|
|
|
3179 |
|
|
/* Prepare the environment block */
|
3180 |
|
|
addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
|
3181 |
|
|
addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
|
3182 |
|
|
addenv(blk, "%s", "REDIRECT_STATUS=200"); /* PHP */
|
3183 |
|
|
addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.u.sin.sin_port));
|
3184 |
|
|
addenv(blk, "SERVER_ROOT=%s", root);
|
3185 |
|
|
addenv(blk, "DOCUMENT_ROOT=%s", root);
|
3186 |
|
|
addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
|
3187 |
|
|
addenv(blk, "REMOTE_ADDR=%s",
|
3188 |
|
|
inet_ntoa(conn->client.rsa.u.sin.sin_addr));
|
3189 |
|
|
addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
|
3190 |
|
|
addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
|
3191 |
|
|
addenv(blk, "SCRIPT_NAME=%s", prog + strlen(root));
|
3192 |
|
|
addenv(blk, "SCRIPT_FILENAME=%s", script_filename); /* PHP */
|
3193 |
|
|
addenv(blk, "PATH_TRANSLATED=%s", prog);
|
3194 |
|
|
addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
|
3195 |
|
|
|
3196 |
|
|
if ((s = mg_get_header(conn, "Content-Type")) != NULL)
|
3197 |
|
|
addenv(blk, "CONTENT_TYPE=%s", s);
|
3198 |
|
|
|
3199 |
|
|
if (conn->request_info.query_string != NULL)
|
3200 |
|
|
addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
|
3201 |
|
|
|
3202 |
|
|
if ((s = mg_get_header(conn, "Content-Length")) != NULL)
|
3203 |
|
|
addenv(blk, "CONTENT_LENGTH=%s", s);
|
3204 |
|
|
|
3205 |
|
|
if ((s = getenv("PATH")) != NULL)
|
3206 |
|
|
addenv(blk, "PATH=%s", s);
|
3207 |
|
|
|
3208 |
|
|
#if defined(_WIN32)
|
3209 |
|
|
if ((s = getenv("COMSPEC")) != NULL)
|
3210 |
|
|
addenv(blk, "COMSPEC=%s", s);
|
3211 |
|
|
if ((s = getenv("SYSTEMROOT")) != NULL)
|
3212 |
|
|
addenv(blk, "SYSTEMROOT=%s", s);
|
3213 |
|
|
#else
|
3214 |
|
|
if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
|
3215 |
|
|
addenv(blk, "LD_LIBRARY_PATH=%s", s);
|
3216 |
|
|
#endif /* _WIN32 */
|
3217 |
|
|
|
3218 |
|
|
if ((s = getenv("PERLLIB")) != NULL)
|
3219 |
|
|
addenv(blk, "PERLLIB=%s", s);
|
3220 |
|
|
|
3221 |
|
|
if (conn->request_info.remote_user != NULL) {
|
3222 |
|
|
addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
|
3223 |
|
|
addenv(blk, "%s", "AUTH_TYPE=Digest");
|
3224 |
|
|
}
|
3225 |
|
|
|
3226 |
|
|
/* Add all headers as HTTP_* variables */
|
3227 |
|
|
for (i = 0; i < conn->request_info.num_headers; i++) {
|
3228 |
|
|
p = addenv(blk, "HTTP_%s=%s",
|
3229 |
|
|
conn->request_info.http_headers[i].name,
|
3230 |
|
|
conn->request_info.http_headers[i].value);
|
3231 |
|
|
|
3232 |
|
|
/* Convert variable name into uppercase, and change - to _ */
|
3233 |
|
|
for (; *p != '=' && *p != '\0'; p++) {
|
3234 |
|
|
if (*p == '-')
|
3235 |
|
|
*p = '_';
|
3236 |
|
|
*p = (char) toupper(* (unsigned char *) p);
|
3237 |
|
|
}
|
3238 |
|
|
}
|
3239 |
|
|
|
3240 |
|
|
/* Add user-specified variables */
|
3241 |
|
|
lock_option(conn->ctx, OPT_CGI_ENV);
|
3242 |
|
|
s = conn->ctx->options[OPT_CGI_ENV];
|
3243 |
|
|
while ((s = next_option(s, &var_vec, NULL)) != NULL)
|
3244 |
|
|
addenv(blk, "%.*s", var_vec.len, var_vec.ptr);
|
3245 |
|
|
unlock_option(conn->ctx, OPT_CGI_ENV);
|
3246 |
|
|
|
3247 |
|
|
blk->vars[blk->nvars++] = NULL;
|
3248 |
|
|
blk->buf[blk->len++] = '\0';
|
3249 |
|
|
|
3250 |
|
|
assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
|
3251 |
|
|
assert(blk->len > 0);
|
3252 |
|
|
assert(blk->len < (int) sizeof(blk->buf));
|
3253 |
|
|
}
|
3254 |
|
|
|
3255 |
|
|
static void
|
3256 |
|
|
send_cgi(struct mg_connection *conn, const char *prog)
|
3257 |
|
|
{
|
3258 |
|
|
int headers_len, data_len, i, n;
|
3259 |
|
|
const char *status;
|
3260 |
|
|
char buf[MAX_REQUEST_SIZE], *pbuf;
|
3261 |
|
|
struct mg_request_info ri;
|
3262 |
|
|
struct cgi_env_block blk;
|
3263 |
|
|
char dir[FILENAME_MAX], *p;
|
3264 |
|
|
int fd_stdin[2], fd_stdout[2];
|
3265 |
|
|
FILE *in, *out;
|
3266 |
|
|
pid_t pid;
|
3267 |
|
|
|
3268 |
|
|
prepare_cgi_environment(conn, prog, &blk);
|
3269 |
|
|
|
3270 |
|
|
/* CGI must be executed in its own directory */
|
3271 |
|
|
(void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
|
3272 |
|
|
if ((p = strrchr(dir, DIRSEP)) != NULL)
|
3273 |
|
|
*p++ = '\0';
|
3274 |
|
|
|
3275 |
|
|
pid = (pid_t) -1;
|
3276 |
|
|
fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
|
3277 |
|
|
in = out = NULL;
|
3278 |
|
|
|
3279 |
|
|
if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
|
3280 |
|
|
send_error(conn, 500, http_500_error,
|
3281 |
|
|
"Cannot create CGI pipe: %s", strerror(ERRNO));
|
3282 |
|
|
goto done;
|
3283 |
|
|
} else if ((pid = spawn_process(conn, p, blk.buf, blk.vars,
|
3284 |
|
|
fd_stdin[0], fd_stdout[1], dir)) == (pid_t) -1) {
|
3285 |
|
|
goto done;
|
3286 |
|
|
} else if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
|
3287 |
|
|
(out = fdopen(fd_stdout[0], "rb")) == NULL) {
|
3288 |
|
|
send_error(conn, 500, http_500_error,
|
3289 |
|
|
"fopen: %s", strerror(ERRNO));
|
3290 |
|
|
goto done;
|
3291 |
|
|
}
|
3292 |
|
|
|
3293 |
|
|
setbuf(in, NULL);
|
3294 |
|
|
setbuf(out, NULL);
|
3295 |
|
|
|
3296 |
|
|
/*
|
3297 |
|
|
* spawn_process() must close those!
|
3298 |
|
|
* If we don't mark them as closed, close() attempt before
|
3299 |
|
|
* return from this function throws an exception on Windows.
|
3300 |
|
|
* Windows does not like when closed descriptor is closed again.
|
3301 |
|
|
*/
|
3302 |
|
|
fd_stdin[0] = fd_stdout[1] = -1;
|
3303 |
|
|
|
3304 |
|
|
/* Send POST data to the CGI process if needed */
|
3305 |
|
|
if (!strcmp(conn->request_info.request_method, "POST") &&
|
3306 |
|
|
!handle_request_body(conn, in)) {
|
3307 |
|
|
goto done;
|
3308 |
|
|
}
|
3309 |
|
|
|
3310 |
|
|
/*
|
3311 |
|
|
* Now read CGI reply into a buffer. We need to set correct
|
3312 |
|
|
* status code, thus we need to see all HTTP headers first.
|
3313 |
|
|
* Do not send anything back to client, until we buffer in all
|
3314 |
|
|
* HTTP headers.
|
3315 |
|
|
*/
|
3316 |
|
|
data_len = 0;
|
3317 |
|
|
headers_len = read_request(out, INVALID_SOCKET, NULL,
|
3318 |
|
|
buf, sizeof(buf), &data_len);
|
3319 |
|
|
if (headers_len <= 0) {
|
3320 |
|
|
send_error(conn, 500, http_500_error,
|
3321 |
|
|
"CGI program sent malformed HTTP headers: [%.*s]",
|
3322 |
|
|
data_len, buf);
|
3323 |
|
|
goto done;
|
3324 |
|
|
}
|
3325 |
|
|
pbuf = buf;
|
3326 |
|
|
buf[headers_len - 1] = '\0';
|
3327 |
|
|
parse_http_headers(&pbuf, &ri);
|
3328 |
|
|
|
3329 |
|
|
/* Make up and send the status line */
|
3330 |
|
|
status = get_header(&ri, "Status");
|
3331 |
|
|
conn->request_info.status_code = status == NULL ? 200 : atoi(status);
|
3332 |
|
|
(void) mg_printf(conn, "HTTP/1.1 %d OK\r\n",
|
3333 |
|
|
conn->request_info.status_code);
|
3334 |
|
|
|
3335 |
|
|
/* Send headers */
|
3336 |
|
|
for (i = 0; i < ri.num_headers; i++)
|
3337 |
|
|
(void) mg_printf(conn, "%s: %s\r\n",
|
3338 |
|
|
ri.http_headers[i].name,
|
3339 |
|
|
ri.http_headers[i].value);
|
3340 |
|
|
(void) mg_write(conn, "\r\n", 2);
|
3341 |
|
|
|
3342 |
|
|
/* Send chunk of data that may be read after the headers */
|
3343 |
|
|
conn->num_bytes_sent += mg_write(conn,
|
3344 |
|
|
buf + headers_len, data_len - headers_len);
|
3345 |
|
|
|
3346 |
|
|
/*
|
3347 |
|
|
* Read the rest of CGI output and send to the client. If read from
|
3348 |
|
|
* CGI returns 0, CGI has finished output. If it returns < 0,
|
3349 |
|
|
* some read error occured (CGI process terminated unexpectedly?)
|
3350 |
|
|
* If write to the client fails, the means client has disconnected
|
3351 |
|
|
* unexpectedly.
|
3352 |
|
|
* In all such cases, stop data exchange and do cleanup.
|
3353 |
|
|
*/
|
3354 |
|
|
do {
|
3355 |
|
|
n = pull(out, INVALID_SOCKET, NULL, buf, sizeof(buf));
|
3356 |
|
|
if (n > 0)
|
3357 |
|
|
n = mg_write(conn, buf, n);
|
3358 |
|
|
if (n > 0)
|
3359 |
|
|
conn->num_bytes_sent += n;
|
3360 |
|
|
} while (n > 0);
|
3361 |
|
|
|
3362 |
|
|
done:
|
3363 |
|
|
if (pid != (pid_t) -1)
|
3364 |
|
|
kill(pid, SIGTERM);
|
3365 |
|
|
if (fd_stdin[0] != -1)
|
3366 |
|
|
(void) close(fd_stdin[0]);
|
3367 |
|
|
if (fd_stdout[1] != -1)
|
3368 |
|
|
(void) close(fd_stdout[1]);
|
3369 |
|
|
|
3370 |
|
|
if (in != NULL)
|
3371 |
|
|
(void) fclose(in);
|
3372 |
|
|
else if (fd_stdin[1] != -1)
|
3373 |
|
|
(void) close(fd_stdin[1]);
|
3374 |
|
|
|
3375 |
|
|
if (out != NULL)
|
3376 |
|
|
(void) fclose(out);
|
3377 |
|
|
else if (fd_stdout[0] != -1)
|
3378 |
|
|
(void) close(fd_stdout[0]);
|
3379 |
|
|
}
|
3380 |
|
|
#endif /* !NO_CGI */
|
3381 |
|
|
|
3382 |
|
|
/*
|
3383 |
|
|
* For a given PUT path, create all intermediate subdirectories
|
3384 |
|
|
* for given path. Return 0 if the path itself is a directory,
|
3385 |
|
|
* or -1 on error, 1 if OK.
|
3386 |
|
|
*/
|
3387 |
|
|
static int
|
3388 |
|
|
put_dir(const char *path)
|
3389 |
|
|
{
|
3390 |
|
|
char buf[FILENAME_MAX];
|
3391 |
|
|
const char *s, *p;
|
3392 |
|
|
struct mgstat st;
|
3393 |
|
|
size_t len;
|
3394 |
|
|
|
3395 |
|
|
for (s = p = path + 2; (p = strchr(s, '/')) != NULL; s = ++p) {
|
3396 |
|
|
len = p - path;
|
3397 |
|
|
assert(len < sizeof(buf));
|
3398 |
|
|
(void) memcpy(buf, path, len);
|
3399 |
|
|
buf[len] = '\0';
|
3400 |
|
|
|
3401 |
|
|
/* Try to create intermediate directory */
|
3402 |
|
|
if (mg_stat(buf, &st) == -1 && mg_mkdir(buf, 0755) != 0)
|
3403 |
|
|
return (-1);
|
3404 |
|
|
|
3405 |
|
|
/* Is path itself a directory ? */
|
3406 |
|
|
if (p[1] == '\0')
|
3407 |
|
|
return (0);
|
3408 |
|
|
}
|
3409 |
|
|
|
3410 |
|
|
return (1);
|
3411 |
|
|
}
|
3412 |
|
|
|
3413 |
|
|
static void
|
3414 |
|
|
put_file(struct mg_connection *conn, const char *path)
|
3415 |
|
|
{
|
3416 |
|
|
struct mgstat st;
|
3417 |
|
|
FILE *fp;
|
3418 |
|
|
int rc;
|
3419 |
|
|
|
3420 |
|
|
conn->request_info.status_code = mg_stat(path, &st) == 0 ? 200 : 201;
|
3421 |
|
|
|
3422 |
|
|
if (mg_get_header(conn, "Range")) {
|
3423 |
|
|
send_error(conn, 501, "Not Implemented",
|
3424 |
|
|
"%s", "Range support for PUT requests is not implemented");
|
3425 |
|
|
} else if ((rc = put_dir(path)) == 0) {
|
3426 |
|
|
(void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
|
3427 |
|
|
conn->request_info.status_code);
|
3428 |
|
|
} else if (rc == -1) {
|
3429 |
|
|
send_error(conn, 500, http_500_error,
|
3430 |
|
|
"put_dir(%s): %s", path, strerror(ERRNO));
|
3431 |
|
|
} else if ((fp = mg_fopen(path, "wb+")) == NULL) {
|
3432 |
|
|
send_error(conn, 500, http_500_error,
|
3433 |
|
|
"fopen(%s): %s", path, strerror(ERRNO));
|
3434 |
|
|
} else {
|
3435 |
|
|
set_close_on_exec(fileno(fp));
|
3436 |
|
|
if (handle_request_body(conn, fp))
|
3437 |
|
|
(void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
|
3438 |
|
|
conn->request_info.status_code);
|
3439 |
|
|
(void) fclose(fp);
|
3440 |
|
|
}
|
3441 |
|
|
}
|
3442 |
|
|
|
3443 |
|
|
#if !defined(NO_SSI)
|
3444 |
|
|
static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
|
3445 |
|
|
|
3446 |
|
|
static void
|
3447 |
|
|
do_ssi_include(struct mg_connection *conn, const char *ssi, char *tag,
|
3448 |
|
|
int include_level)
|
3449 |
|
|
{
|
3450 |
|
|
char file_name[BUFSIZ], path[FILENAME_MAX], *p;
|
3451 |
|
|
FILE *fp;
|
3452 |
|
|
|
3453 |
|
|
/*
|
3454 |
|
|
* sscanf() is safe here, since send_ssi_file() also uses buffer
|
3455 |
|
|
* of size BUFSIZ to get the tag. So strlen(tag) is always < BUFSIZ.
|
3456 |
|
|
*/
|
3457 |
|
|
if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
|
3458 |
|
|
/* File name is relative to the webserver root */
|
3459 |
|
|
lock_option(conn->ctx, OPT_ROOT);
|
3460 |
|
|
(void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
|
3461 |
|
|
conn->ctx->options[OPT_ROOT], DIRSEP, file_name);
|
3462 |
|
|
unlock_option(conn->ctx, OPT_ROOT);
|
3463 |
|
|
} else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
|
3464 |
|
|
/*
|
3465 |
|
|
* File name is relative to the webserver working directory
|
3466 |
|
|
* or it is absolute system path
|
3467 |
|
|
*/
|
3468 |
|
|
(void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
|
3469 |
|
|
} else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
|
3470 |
|
|
/* File name is relative to the currect document */
|
3471 |
|
|
(void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
|
3472 |
|
|
if ((p = strrchr(path, DIRSEP)) != NULL)
|
3473 |
|
|
p[1] = '\0';
|
3474 |
|
|
(void) mg_snprintf(conn, path + strlen(path),
|
3475 |
|
|
sizeof(path) - strlen(path), "%s", file_name);
|
3476 |
|
|
} else {
|
3477 |
|
|
cry(conn, "Bad SSI #include: [%s]", tag);
|
3478 |
|
|
return;
|
3479 |
|
|
}
|
3480 |
|
|
|
3481 |
|
|
if ((fp = mg_fopen(path, "rb")) == NULL) {
|
3482 |
|
|
cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
|
3483 |
|
|
tag, path, strerror(ERRNO));
|
3484 |
|
|
} else {
|
3485 |
|
|
set_close_on_exec(fileno(fp));
|
3486 |
|
|
if (match_extension(path,
|
3487 |
|
|
conn->ctx->options[OPT_SSI_EXTENSIONS])) {
|
3488 |
|
|
send_ssi_file(conn, path, fp, include_level + 1);
|
3489 |
|
|
} else {
|
3490 |
|
|
send_opened_file_stream(conn, fp,
|
3491 |
|
|
UNKNOWN_CONTENT_LENGTH);
|
3492 |
|
|
}
|
3493 |
|
|
(void) fclose(fp);
|
3494 |
|
|
}
|
3495 |
|
|
}
|
3496 |
|
|
|
3497 |
|
|
static void
|
3498 |
|
|
do_ssi_exec(struct mg_connection *conn, char *tag)
|
3499 |
|
|
{
|
3500 |
|
|
char cmd[BUFSIZ];
|
3501 |
|
|
FILE *fp;
|
3502 |
|
|
|
3503 |
|
|
if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
|
3504 |
|
|
cry(conn, "Bad SSI #exec: [%s]", tag);
|
3505 |
|
|
} else if ((fp = popen(cmd, "r")) == NULL) {
|
3506 |
|
|
cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
|
3507 |
|
|
} else {
|
3508 |
|
|
send_opened_file_stream(conn, fp, UNKNOWN_CONTENT_LENGTH);
|
3509 |
|
|
(void) pclose(fp);
|
3510 |
|
|
}
|
3511 |
|
|
}
|
3512 |
|
|
|
3513 |
|
|
static void
|
3514 |
|
|
send_ssi_file(struct mg_connection *conn, const char *path, FILE *fp,
|
3515 |
|
|
int include_level)
|
3516 |
|
|
{
|
3517 |
|
|
char buf[BUFSIZ];
|
3518 |
|
|
int ch, len, in_ssi_tag;
|
3519 |
|
|
|
3520 |
|
|
if (include_level > 10) {
|
3521 |
|
|
cry(conn, "SSI #include level is too deep (%s)", path);
|
3522 |
|
|
return;
|
3523 |
|
|
}
|
3524 |
|
|
|
3525 |
|
|
in_ssi_tag = FALSE;
|
3526 |
|
|
len = 0;
|
3527 |
|
|
|
3528 |
|
|
while ((ch = fgetc(fp)) != EOF) {
|
3529 |
|
|
if (in_ssi_tag && ch == '>') {
|
3530 |
|
|
in_ssi_tag = FALSE;
|
3531 |
|
|
buf[len++] = ch & 0xff;
|
3532 |
|
|
buf[len] = '\0';
|
3533 |
|
|
assert(len <= (int) sizeof(buf));
|
3534 |
|
|
if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
|
3535 |
|
|
/* Not an SSI tag, pass it */
|
3536 |
|
|
(void) mg_write(conn, buf, len);
|
3537 |
|
|
} else {
|
3538 |
|
|
if (!memcmp(buf + 5, "include", 7)) {
|
3539 |
|
|
do_ssi_include(conn, path, buf + 12,
|
3540 |
|
|
include_level);
|
3541 |
|
|
} else if (!memcmp(buf + 5, "exec", 4)) {
|
3542 |
|
|
do_ssi_exec(conn, buf + 9);
|
3543 |
|
|
} else {
|
3544 |
|
|
cry(conn, "%s: unknown SSI "
|
3545 |
|
|
"command: \"%s\"", path, buf);
|
3546 |
|
|
}
|
3547 |
|
|
}
|
3548 |
|
|
len = 0;
|
3549 |
|
|
} else if (in_ssi_tag) {
|
3550 |
|
|
if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
|
3551 |
|
|
/* Not an SSI tag */
|
3552 |
|
|
in_ssi_tag = FALSE;
|
3553 |
|
|
} else if (len == (int) sizeof(buf) - 2) {
|
3554 |
|
|
cry(conn, "%s: SSI tag is too large", path);
|
3555 |
|
|
len = 0;
|
3556 |
|
|
}
|
3557 |
|
|
buf[len++] = ch & 0xff;
|
3558 |
|
|
} else if (ch == '<') {
|
3559 |
|
|
in_ssi_tag = TRUE;
|
3560 |
|
|
if (len > 0)
|
3561 |
|
|
(void) mg_write(conn, buf, len);
|
3562 |
|
|
len = 0;
|
3563 |
|
|
buf[len++] = ch & 0xff;
|
3564 |
|
|
} else {
|
3565 |
|
|
buf[len++] = ch & 0xff;
|
3566 |
|
|
if (len == (int) sizeof(buf)) {
|
3567 |
|
|
(void) mg_write(conn, buf, len);
|
3568 |
|
|
len = 0;
|
3569 |
|
|
}
|
3570 |
|
|
}
|
3571 |
|
|
}
|
3572 |
|
|
|
3573 |
|
|
/* Send the rest of buffered data */
|
3574 |
|
|
if (len > 0)
|
3575 |
|
|
(void) mg_write(conn, buf, len);
|
3576 |
|
|
|
3577 |
|
|
}
|
3578 |
|
|
|
3579 |
|
|
static void
|
3580 |
|
|
send_ssi(struct mg_connection *conn, const char *path)
|
3581 |
|
|
{
|
3582 |
|
|
FILE *fp;
|
3583 |
|
|
|
3584 |
|
|
if ((fp = mg_fopen(path, "rb")) == NULL) {
|
3585 |
|
|
send_error(conn, 500, http_500_error,
|
3586 |
|
|
"fopen(%s): %s", path, strerror(ERRNO));
|
3587 |
|
|
} else {
|
3588 |
|
|
set_close_on_exec(fileno(fp));
|
3589 |
|
|
(void) mg_printf(conn, "%s", "HTTP/1.1 200 OK\r\n"
|
3590 |
|
|
"Content-Type: text/html\r\nConnection: close\r\n\r\n");
|
3591 |
|
|
send_ssi_file(conn, path, fp, 0);
|
3592 |
|
|
(void) fclose(fp);
|
3593 |
|
|
}
|
3594 |
|
|
}
|
3595 |
|
|
#endif /* !NO_SSI */
|
3596 |
|
|
|
3597 |
|
|
void
|
3598 |
|
|
mg_authorize(struct mg_connection *conn)
|
3599 |
|
|
{
|
3600 |
|
|
conn->embedded_auth = TRUE;
|
3601 |
|
|
}
|
3602 |
|
|
|
3603 |
|
|
static bool_t
|
3604 |
|
|
check_embedded_authorization(struct mg_connection *conn)
|
3605 |
|
|
{
|
3606 |
|
|
const struct callback *cb;
|
3607 |
|
|
bool_t authorized;
|
3608 |
|
|
|
3609 |
|
|
authorized = TRUE;
|
3610 |
|
|
cb = find_callback(conn->ctx, TRUE, conn->request_info.uri, -1);
|
3611 |
|
|
|
3612 |
|
|
if (cb != NULL) {
|
3613 |
|
|
cb->func(conn, &conn->request_info, cb->user_data);
|
3614 |
|
|
authorized = conn->embedded_auth;
|
3615 |
|
|
}
|
3616 |
|
|
|
3617 |
|
|
return (authorized);
|
3618 |
|
|
}
|
3619 |
|
|
|
3620 |
|
|
/*
|
3621 |
|
|
* This is the heart of the Mongoose's logic.
|
3622 |
|
|
* This function is called when the request is read, parsed and validated,
|
3623 |
|
|
* and Mongoose must decide what action to take: serve a file, or
|
3624 |
|
|
* a directory, or call embedded function, etcetera.
|
3625 |
|
|
*/
|
3626 |
|
|
static void
|
3627 |
|
|
analyze_request(struct mg_connection *conn)
|
3628 |
|
|
{
|
3629 |
|
|
struct mg_request_info *ri = &conn->request_info;
|
3630 |
|
|
char path[FILENAME_MAX], *uri = ri->uri;
|
3631 |
|
|
struct mgstat st;
|
3632 |
|
|
const struct callback *cb;
|
3633 |
|
|
|
3634 |
|
|
if ((conn->request_info.query_string = strchr(uri, '?')) != NULL)
|
3635 |
|
|
* conn->request_info.query_string++ = '\0';
|
3636 |
|
|
|
3637 |
|
|
(void) url_decode(uri, (int) strlen(uri), uri, strlen(uri) + 1, FALSE);
|
3638 |
|
|
remove_double_dots_and_double_slashes(uri);
|
3639 |
|
|
convert_uri_to_file_name(conn, uri, path, sizeof(path));
|
3640 |
|
|
|
3641 |
|
|
if (!check_authorization(conn, path)) {
|
3642 |
|
|
send_authorization_request(conn);
|
3643 |
|
|
} else if (check_embedded_authorization(conn) == FALSE) {
|
3644 |
|
|
/*
|
3645 |
|
|
* Embedded code failed authorization. Do nothing here, since
|
3646 |
|
|
* an embedded code must handle this itself by either
|
3647 |
|
|
* showing proper error message, or redirecting to some
|
3648 |
|
|
* sort of login page, or something else.
|
3649 |
|
|
*/
|
3650 |
|
|
} else if ((cb = find_callback(conn->ctx, FALSE, uri, -1)) != NULL) {
|
3651 |
|
|
if ((strcmp(ri->request_method, "POST") != 0 &&
|
3652 |
|
|
strcmp(ri->request_method, "PUT") != 0) ||
|
3653 |
|
|
handle_request_body(conn, NULL))
|
3654 |
|
|
cb->func(conn, &conn->request_info, cb->user_data);
|
3655 |
|
|
} else if (strstr(path, PASSWORDS_FILE_NAME)) {
|
3656 |
|
|
/* Do not allow to view passwords files */
|
3657 |
|
|
send_error(conn, 403, "Forbidden", "Access Forbidden");
|
3658 |
|
|
} else if ((!strcmp(ri->request_method, "PUT") ||
|
3659 |
|
|
!strcmp(ri->request_method, "DELETE")) &&
|
3660 |
|
|
(conn->ctx->options[OPT_AUTH_PUT] == NULL ||
|
3661 |
|
|
!is_authorized_for_put(conn))) {
|
3662 |
|
|
send_authorization_request(conn);
|
3663 |
|
|
} else if (!strcmp(ri->request_method, "PUT")) {
|
3664 |
|
|
put_file(conn, path);
|
3665 |
|
|
} else if (!strcmp(ri->request_method, "DELETE")) {
|
3666 |
|
|
if (mg_remove(path) == 0)
|
3667 |
|
|
send_error(conn, 200, "OK", "");
|
3668 |
|
|
else
|
3669 |
|
|
send_error(conn, 500, http_500_error,
|
3670 |
|
|
"remove(%s): %s", path, strerror(ERRNO));
|
3671 |
|
|
} else if (mg_stat(path, &st) != 0) {
|
3672 |
|
|
send_error(conn, 404, "Not Found", "%s", "File not found");
|
3673 |
|
|
} else if (st.is_directory && uri[strlen(uri) - 1] != '/') {
|
3674 |
|
|
(void) mg_printf(conn,
|
3675 |
|
|
"HTTP/1.1 301 Moved Permanently\r\n"
|
3676 |
|
|
"Location: %s/\r\n\r\n", uri);
|
3677 |
|
|
} else if (st.is_directory &&
|
3678 |
|
|
substitute_index_file(conn, path, sizeof(path), &st) == FALSE) {
|
3679 |
|
|
if (is_true(conn->ctx->options[OPT_DIR_LIST])) {
|
3680 |
|
|
send_directory(conn, path);
|
3681 |
|
|
} else {
|
3682 |
|
|
send_error(conn, 403, "Directory Listing Denied",
|
3683 |
|
|
"Directory listing denied");
|
3684 |
|
|
}
|
3685 |
|
|
#if !defined(NO_CGI)
|
3686 |
|
|
} else if (match_extension(path,
|
3687 |
|
|
conn->ctx->options[OPT_CGI_EXTENSIONS])) {
|
3688 |
|
|
if (strcmp(ri->request_method, "POST") &&
|
3689 |
|
|
strcmp(ri->request_method, "GET")) {
|
3690 |
|
|
send_error(conn, 501, "Not Implemented",
|
3691 |
|
|
"Method %s is not implemented", ri->request_method);
|
3692 |
|
|
} else {
|
3693 |
|
|
send_cgi(conn, path);
|
3694 |
|
|
}
|
3695 |
|
|
#endif /* NO_CGI */
|
3696 |
|
|
#if !defined(NO_SSI)
|
3697 |
|
|
} else if (match_extension(path,
|
3698 |
|
|
conn->ctx->options[OPT_SSI_EXTENSIONS])) {
|
3699 |
|
|
send_ssi(conn, path);
|
3700 |
|
|
#endif /* NO_SSI */
|
3701 |
|
|
} else if (is_not_modified(conn, &st)) {
|
3702 |
|
|
send_error(conn, 304, "Not Modified", "");
|
3703 |
|
|
} else {
|
3704 |
|
|
send_file(conn, path, &st);
|
3705 |
|
|
}
|
3706 |
|
|
}
|
3707 |
|
|
|
3708 |
|
|
static void
|
3709 |
|
|
close_all_listening_sockets(struct mg_context *ctx)
|
3710 |
|
|
{
|
3711 |
|
|
int i;
|
3712 |
|
|
|
3713 |
|
|
for (i = 0; i < ctx->num_listeners; i++)
|
3714 |
|
|
(void) closesocket(ctx->listeners[i].sock);
|
3715 |
|
|
ctx->num_listeners = 0;
|
3716 |
|
|
}
|
3717 |
|
|
|
3718 |
|
|
static bool_t
|
3719 |
|
|
set_ports_option(struct mg_context *ctx, const char *list)
|
3720 |
|
|
{
|
3721 |
|
|
SOCKET sock;
|
3722 |
|
|
int is_ssl;
|
3723 |
|
|
struct vec vec;
|
3724 |
|
|
struct socket *listener;
|
3725 |
|
|
|
3726 |
|
|
close_all_listening_sockets(ctx);
|
3727 |
|
|
assert(ctx->num_listeners == 0);
|
3728 |
|
|
|
3729 |
|
|
while ((list = next_option(list, &vec, NULL)) != NULL) {
|
3730 |
|
|
|
3731 |
|
|
is_ssl = vec.ptr[vec.len - 1] == 's' ? TRUE : FALSE;
|
3732 |
|
|
listener = ctx->listeners + ctx->num_listeners;
|
3733 |
|
|
|
3734 |
|
|
if (ctx->num_listeners >=
|
3735 |
|
|
(int) (ARRAY_SIZE(ctx->listeners) - 1)) {
|
3736 |
|
|
cry(fc(ctx), "%s", "Too many listeninig sockets");
|
3737 |
|
|
return (FALSE);
|
3738 |
|
|
} else if ((sock = mg_open_listening_port(ctx,
|
3739 |
|
|
vec.ptr, &listener->lsa)) == INVALID_SOCKET) {
|
3740 |
|
|
cry(fc(ctx), "cannot bind to %.*s", vec.len, vec.ptr);
|
3741 |
|
|
return (FALSE);
|
3742 |
|
|
} else if (is_ssl == TRUE && ctx->ssl_ctx == NULL) {
|
3743 |
|
|
(void) closesocket(sock);
|
3744 |
|
|
cry(fc(ctx), "cannot add SSL socket, please specify "
|
3745 |
|
|
"-ssl_cert option BEFORE -ports option");
|
3746 |
|
|
return (FALSE);
|
3747 |
|
|
} else {
|
3748 |
|
|
listener->sock = sock;
|
3749 |
|
|
listener->is_ssl = is_ssl;
|
3750 |
|
|
ctx->num_listeners++;
|
3751 |
|
|
}
|
3752 |
|
|
}
|
3753 |
|
|
|
3754 |
|
|
return (TRUE);
|
3755 |
|
|
}
|
3756 |
|
|
|
3757 |
|
|
static void
|
3758 |
|
|
log_header(const struct mg_connection *conn, const char *header, FILE *fp)
|
3759 |
|
|
{
|
3760 |
|
|
const char *header_value;
|
3761 |
|
|
|
3762 |
|
|
if ((header_value = mg_get_header(conn, header)) == NULL) {
|
3763 |
|
|
(void) fprintf(fp, "%s", " -");
|
3764 |
|
|
} else {
|
3765 |
|
|
(void) fprintf(fp, " \"%s\"", header_value);
|
3766 |
|
|
}
|
3767 |
|
|
}
|
3768 |
|
|
|
3769 |
|
|
static void
|
3770 |
|
|
log_access(const struct mg_connection *conn)
|
3771 |
|
|
{
|
3772 |
|
|
const struct mg_request_info *ri;
|
3773 |
|
|
char date[64];
|
3774 |
|
|
|
3775 |
|
|
if (conn->ctx->access_log == NULL)
|
3776 |
|
|
return;
|
3777 |
|
|
|
3778 |
|
|
(void) strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
|
3779 |
|
|
localtime(&conn->birth_time));
|
3780 |
|
|
|
3781 |
|
|
ri = &conn->request_info;
|
3782 |
|
|
|
3783 |
|
|
flockfile(conn->ctx->access_log);
|
3784 |
|
|
|
3785 |
|
|
(void) fprintf(conn->ctx->access_log,
|
3786 |
|
|
"%s - %s [%s] \"%s %s HTTP/%d.%d\" %d %" UINT64_FMT "u",
|
3787 |
|
|
inet_ntoa(conn->client.rsa.u.sin.sin_addr),
|
3788 |
|
|
ri->remote_user == NULL ? "-" : ri->remote_user,
|
3789 |
|
|
date,
|
3790 |
|
|
ri->request_method ? ri->request_method : "-",
|
3791 |
|
|
ri->uri ? ri->uri : "-",
|
3792 |
|
|
ri->http_version_major, ri->http_version_minor,
|
3793 |
|
|
conn->request_info.status_code, conn->num_bytes_sent);
|
3794 |
|
|
log_header(conn, "Referer", conn->ctx->access_log);
|
3795 |
|
|
log_header(conn, "User-Agent", conn->ctx->access_log);
|
3796 |
|
|
(void) fputc('\n', conn->ctx->access_log);
|
3797 |
|
|
(void) fflush(conn->ctx->access_log);
|
3798 |
|
|
|
3799 |
|
|
funlockfile(conn->ctx->access_log);
|
3800 |
|
|
}
|
3801 |
|
|
|
3802 |
|
|
static bool_t
|
3803 |
|
|
isbyte(int n) {
|
3804 |
|
|
return (n >= 0 && n <= 255);
|
3805 |
|
|
}
|
3806 |
|
|
|
3807 |
|
|
/*
|
3808 |
|
|
* Verify given socket address against the ACL.
|
3809 |
|
|
* Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
|
3810 |
|
|
*/
|
3811 |
|
|
static int
|
3812 |
|
|
check_acl(struct mg_context *ctx, const char *list, const struct usa *usa)
|
3813 |
|
|
{
|
3814 |
|
|
int a, b, c, d, n, mask, allowed;
|
3815 |
|
|
char flag;
|
3816 |
|
|
uint32_t acl_subnet, acl_mask, remote_ip;
|
3817 |
|
|
struct vec vec;
|
3818 |
|
|
|
3819 |
|
|
(void) memcpy(&remote_ip, &usa->u.sin.sin_addr, sizeof(remote_ip));
|
3820 |
|
|
|
3821 |
|
|
/* If any ACL is set, deny by default */
|
3822 |
|
|
allowed = '-';
|
3823 |
|
|
|
3824 |
|
|
while ((list = next_option(list, &vec, NULL)) != NULL) {
|
3825 |
|
|
|
3826 |
|
|
mask = 32;
|
3827 |
|
|
|
3828 |
|
|
if (sscanf(vec.ptr, "%c%d.%d.%d.%d%n",
|
3829 |
|
|
&flag, &a, &b, &c, &d, &n) != 5) {
|
3830 |
|
|
cry(fc(ctx),
|
3831 |
|
|
"%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
|
3832 |
|
|
return (-1);
|
3833 |
|
|
} else if (flag != '+' && flag != '-') {
|
3834 |
|
|
cry(fc(ctx), "%s: flag must be + or -: [%s]",
|
3835 |
|
|
__func__, vec.ptr);
|
3836 |
|
|
return (-1);
|
3837 |
|
|
} else if (!isbyte(a)||!isbyte(b)||!isbyte(c)||!isbyte(d)) {
|
3838 |
|
|
cry(fc(ctx),
|
3839 |
|
|
"%s: bad ip address: [%s]", __func__, vec.ptr);
|
3840 |
|
|
return (-1);
|
3841 |
|
|
} else if (sscanf(vec.ptr + n, "/%d", &mask) == 0) {
|
3842 |
|
|
/* Do nothing, no mask specified */
|
3843 |
|
|
} else if (mask < 0 || mask > 32) {
|
3844 |
|
|
cry(fc(ctx), "%s: bad subnet mask: %d [%s]",
|
3845 |
|
|
__func__, n, vec.ptr);
|
3846 |
|
|
return (-1);
|
3847 |
|
|
}
|
3848 |
|
|
|
3849 |
|
|
acl_subnet = (a << 24) | (b << 16) | (c << 8) | d;
|
3850 |
|
|
acl_mask = mask ? 0xffffffffU << (32 - mask) : 0;
|
3851 |
|
|
|
3852 |
|
|
if (acl_subnet == (ntohl(remote_ip) & acl_mask))
|
3853 |
|
|
allowed = flag;
|
3854 |
|
|
}
|
3855 |
|
|
|
3856 |
|
|
return (allowed == '+' ? 1 : 0);
|
3857 |
|
|
}
|
3858 |
|
|
|
3859 |
|
|
static void
|
3860 |
|
|
add_to_set(SOCKET fd, fd_set *set, int *max_fd)
|
3861 |
|
|
{
|
3862 |
|
|
FD_SET(fd, set);
|
3863 |
|
|
if (fd > (SOCKET) *max_fd)
|
3864 |
|
|
*max_fd = (int) fd;
|
3865 |
|
|
}
|
3866 |
|
|
|
3867 |
|
|
/*
|
3868 |
|
|
* Deallocate mongoose context, free up the resources
|
3869 |
|
|
*/
|
3870 |
|
|
static void
|
3871 |
|
|
mg_fini(struct mg_context *ctx)
|
3872 |
|
|
{
|
3873 |
|
|
int i;
|
3874 |
|
|
|
3875 |
|
|
close_all_listening_sockets(ctx);
|
3876 |
|
|
|
3877 |
|
|
/* Wait until all threads finish */
|
3878 |
|
|
(void) pthread_mutex_lock(&ctx->thr_mutex);
|
3879 |
|
|
while (ctx->num_threads > 0)
|
3880 |
|
|
(void) pthread_cond_wait(&ctx->thr_cond, &ctx->thr_mutex);
|
3881 |
|
|
(void) pthread_mutex_unlock(&ctx->thr_mutex);
|
3882 |
|
|
|
3883 |
|
|
/* Deallocate all registered callbacks */
|
3884 |
|
|
for (i = 0; i < ctx->num_callbacks; i++)
|
3885 |
|
|
if (ctx->callbacks[i].uri_regex != NULL)
|
3886 |
|
|
free(ctx->callbacks[i].uri_regex);
|
3887 |
|
|
|
3888 |
|
|
/* Deallocate all options */
|
3889 |
|
|
for (i = 0; i < NUM_OPTIONS; i++)
|
3890 |
|
|
if (ctx->options[i] != NULL)
|
3891 |
|
|
free(ctx->options[i]);
|
3892 |
|
|
|
3893 |
|
|
/* Close log files */
|
3894 |
|
|
if (ctx->access_log)
|
3895 |
|
|
(void) fclose(ctx->access_log);
|
3896 |
|
|
if (ctx->error_log)
|
3897 |
|
|
(void) fclose(ctx->error_log);
|
3898 |
|
|
|
3899 |
|
|
/* Deallocate SSL context */
|
3900 |
|
|
if (ctx->ssl_ctx)
|
3901 |
|
|
SSL_CTX_free(ctx->ssl_ctx);
|
3902 |
|
|
|
3903 |
|
|
/* Deallocate mutexes and condvars */
|
3904 |
|
|
for (i = 0; i < NUM_OPTIONS; i++)
|
3905 |
|
|
(void) pthread_mutex_destroy(&ctx->opt_mutex[i]);
|
3906 |
|
|
|
3907 |
|
|
(void) pthread_mutex_destroy(&ctx->thr_mutex);
|
3908 |
|
|
(void) pthread_mutex_destroy(&ctx->bind_mutex);
|
3909 |
|
|
(void) pthread_cond_destroy(&ctx->thr_cond);
|
3910 |
|
|
(void) pthread_cond_destroy(&ctx->empty_cond);
|
3911 |
|
|
(void) pthread_cond_destroy(&ctx->full_cond);
|
3912 |
|
|
|
3913 |
|
|
/* Signal mg_stop() that we're done */
|
3914 |
|
|
ctx->stop_flag = 2;
|
3915 |
|
|
}
|
3916 |
|
|
|
3917 |
|
|
#if !defined(_WIN32)
|
3918 |
|
|
static bool_t
|
3919 |
|
|
set_uid_option(struct mg_context *ctx, const char *uid)
|
3920 |
|
|
{
|
3921 |
|
|
struct passwd *pw;
|
3922 |
|
|
int retval = FALSE;
|
3923 |
|
|
|
3924 |
|
|
if ((pw = getpwnam(uid)) == NULL)
|
3925 |
|
|
cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
|
3926 |
|
|
else if (setgid(pw->pw_gid) == -1)
|
3927 |
|
|
cry(fc(ctx), "%s: setgid(%s): %s",
|
3928 |
|
|
__func__, uid, strerror(errno));
|
3929 |
|
|
else if (setuid(pw->pw_uid) == -1)
|
3930 |
|
|
cry(fc(ctx), "%s: setuid(%s): %s",
|
3931 |
|
|
__func__, uid, strerror(errno));
|
3932 |
|
|
else
|
3933 |
|
|
retval = TRUE;
|
3934 |
|
|
|
3935 |
|
|
return (retval);
|
3936 |
|
|
}
|
3937 |
|
|
#endif /* !_WIN32 */
|
3938 |
|
|
|
3939 |
|
|
#if !defined(NO_SSL)
|
3940 |
|
|
void
|
3941 |
|
|
mg_set_ssl_password_callback(struct mg_context *ctx, mg_spcb_t func)
|
3942 |
|
|
{
|
3943 |
|
|
ctx->ssl_password_callback = func;
|
3944 |
|
|
}
|
3945 |
|
|
|
3946 |
|
|
static pthread_mutex_t *ssl_mutexes;
|
3947 |
|
|
|
3948 |
|
|
static void
|
3949 |
|
|
ssl_locking_callback(int mode, int mutex_num, const char *file, int line)
|
3950 |
|
|
{
|
3951 |
|
|
line = 0; /* Unused */
|
3952 |
|
|
file = NULL; /* Unused */
|
3953 |
|
|
|
3954 |
|
|
if (mode & CRYPTO_LOCK)
|
3955 |
|
|
(void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
|
3956 |
|
|
else
|
3957 |
|
|
(void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
|
3958 |
|
|
}
|
3959 |
|
|
|
3960 |
|
|
static unsigned long
|
3961 |
|
|
ssl_id_callback(void)
|
3962 |
|
|
{
|
3963 |
|
|
return ((unsigned long) pthread_self());
|
3964 |
|
|
}
|
3965 |
|
|
|
3966 |
|
|
static bool_t
|
3967 |
|
|
load_dll(struct mg_context *ctx, const char *dll_name, struct ssl_func *sw)
|
3968 |
|
|
{
|
3969 |
|
|
union {void *p; void (*fp)(void);} u;
|
3970 |
|
|
void *dll_handle;
|
3971 |
|
|
struct ssl_func *fp;
|
3972 |
|
|
|
3973 |
|
|
if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
|
3974 |
|
|
cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
|
3975 |
|
|
return (FALSE);
|
3976 |
|
|
}
|
3977 |
|
|
|
3978 |
|
|
for (fp = sw; fp->name != NULL; fp++) {
|
3979 |
|
|
#ifdef _WIN32
|
3980 |
|
|
/* GetProcAddress() returns pointer to function */
|
3981 |
|
|
u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
|
3982 |
|
|
#else
|
3983 |
|
|
/*
|
3984 |
|
|
* dlsym() on UNIX returns void *.
|
3985 |
|
|
* ISO C forbids casts of data pointers to function
|
3986 |
|
|
* pointers. We need to use a union to make a cast.
|
3987 |
|
|
*/
|
3988 |
|
|
u.p = dlsym(dll_handle, fp->name);
|
3989 |
|
|
#endif /* _WIN32 */
|
3990 |
|
|
if (u.fp == NULL) {
|
3991 |
|
|
cry(fc(ctx), "%s: cannot find %s", __func__, fp->name);
|
3992 |
|
|
return (FALSE);
|
3993 |
|
|
} else {
|
3994 |
|
|
fp->ptr = u.fp;
|
3995 |
|
|
}
|
3996 |
|
|
}
|
3997 |
|
|
|
3998 |
|
|
return (TRUE);
|
3999 |
|
|
}
|
4000 |
|
|
|
4001 |
|
|
/*
|
4002 |
|
|
* Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
|
4003 |
|
|
*/
|
4004 |
|
|
static bool_t
|
4005 |
|
|
set_ssl_option(struct mg_context *ctx, const char *pem)
|
4006 |
|
|
{
|
4007 |
|
|
SSL_CTX *CTX;
|
4008 |
|
|
int i, size, retval = FALSE;
|
4009 |
|
|
|
4010 |
|
|
if (load_dll(ctx, SSL_LIB, ssl_sw) == FALSE ||
|
4011 |
|
|
load_dll(ctx, CRYPTO_LIB, crypto_sw) == FALSE)
|
4012 |
|
|
return (FALSE);
|
4013 |
|
|
|
4014 |
|
|
/* Initialize SSL crap */
|
4015 |
|
|
SSL_library_init();
|
4016 |
|
|
|
4017 |
|
|
if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL)
|
4018 |
|
|
cry(fc(ctx), "SSL_CTX_new error");
|
4019 |
|
|
else if (ctx->ssl_password_callback != NULL)
|
4020 |
|
|
SSL_CTX_set_default_passwd_cb(CTX, ctx->ssl_password_callback);
|
4021 |
|
|
|
4022 |
|
|
if (CTX != NULL && SSL_CTX_use_certificate_file(
|
4023 |
|
|
CTX, pem, SSL_FILETYPE_PEM) == 0)
|
4024 |
|
|
cry(fc(ctx), "%s: cannot open %s", __func__, pem);
|
4025 |
|
|
else if (CTX != NULL && SSL_CTX_use_PrivateKey_file(
|
4026 |
|
|
CTX, pem, SSL_FILETYPE_PEM) == 0)
|
4027 |
|
|
cry(fc(ctx), "%s: cannot open %s", NULL, pem);
|
4028 |
|
|
else
|
4029 |
|
|
retval = TRUE;
|
4030 |
|
|
|
4031 |
|
|
/*
|
4032 |
|
|
* Initialize locking callbacks, needed for thread safety.
|
4033 |
|
|
* http://www.openssl.org/support/faq.html#PROG1
|
4034 |
|
|
*/
|
4035 |
|
|
size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
|
4036 |
|
|
if ((ssl_mutexes = (pthread_mutex_t *) malloc(size)) == NULL) {
|
4037 |
|
|
cry(fc(ctx), "%s: cannot allocate mutexes", __func__);
|
4038 |
|
|
return (FALSE);
|
4039 |
|
|
}
|
4040 |
|
|
|
4041 |
|
|
for (i = 0; i < CRYPTO_num_locks(); i++)
|
4042 |
|
|
pthread_mutex_init(&ssl_mutexes[i], NULL);
|
4043 |
|
|
|
4044 |
|
|
CRYPTO_set_locking_callback(&ssl_locking_callback);
|
4045 |
|
|
CRYPTO_set_id_callback(&ssl_id_callback);
|
4046 |
|
|
|
4047 |
|
|
/* Done with everything. Save the context. */
|
4048 |
|
|
ctx->ssl_ctx = CTX;
|
4049 |
|
|
|
4050 |
|
|
return (retval);
|
4051 |
|
|
}
|
4052 |
|
|
#endif /* !NO_SSL */
|
4053 |
|
|
|
4054 |
|
|
static bool_t
|
4055 |
|
|
open_log_file(struct mg_context *ctx, FILE **fpp, const char *path)
|
4056 |
|
|
{
|
4057 |
|
|
bool_t retval = TRUE;
|
4058 |
|
|
|
4059 |
|
|
if (*fpp != NULL)
|
4060 |
|
|
(void) fclose(*fpp);
|
4061 |
|
|
|
4062 |
|
|
if (path == NULL) {
|
4063 |
|
|
*fpp = NULL;
|
4064 |
|
|
} else if ((*fpp = mg_fopen(path, "a")) == NULL) {
|
4065 |
|
|
cry(fc(ctx), "%s(%s): %s", __func__, path, strerror(errno));
|
4066 |
|
|
retval = FALSE;
|
4067 |
|
|
} else {
|
4068 |
|
|
set_close_on_exec(fileno(*fpp));
|
4069 |
|
|
}
|
4070 |
|
|
|
4071 |
|
|
return (retval);
|
4072 |
|
|
}
|
4073 |
|
|
|
4074 |
|
|
static bool_t
|
4075 |
|
|
set_alog_option(struct mg_context *ctx, const char *path)
|
4076 |
|
|
{
|
4077 |
|
|
return (open_log_file(ctx, &ctx->access_log, path));
|
4078 |
|
|
}
|
4079 |
|
|
|
4080 |
|
|
static bool_t
|
4081 |
|
|
set_elog_option(struct mg_context *ctx, const char *path)
|
4082 |
|
|
{
|
4083 |
|
|
return (open_log_file(ctx, &ctx->error_log, path));
|
4084 |
|
|
}
|
4085 |
|
|
|
4086 |
|
|
static bool_t
|
4087 |
|
|
set_gpass_option(struct mg_context *ctx, const char *path)
|
4088 |
|
|
{
|
4089 |
|
|
struct mgstat mgstat;
|
4090 |
|
|
ctx = NULL;
|
4091 |
|
|
return (mg_stat(path, &mgstat) == 0);
|
4092 |
|
|
}
|
4093 |
|
|
|
4094 |
|
|
static bool_t
|
4095 |
|
|
set_max_threads_option(struct mg_context *ctx, const char *str)
|
4096 |
|
|
{
|
4097 |
|
|
ctx->max_threads = atoi(str);
|
4098 |
|
|
return (TRUE);
|
4099 |
|
|
}
|
4100 |
|
|
|
4101 |
|
|
static bool_t
|
4102 |
|
|
set_acl_option(struct mg_context *ctx, const char *acl)
|
4103 |
|
|
{
|
4104 |
|
|
struct usa fake;
|
4105 |
|
|
|
4106 |
|
|
return (check_acl(ctx, acl, &fake) != -1);
|
4107 |
|
|
}
|
4108 |
|
|
|
4109 |
|
|
static void admin_page(struct mg_connection *,
|
4110 |
|
|
const struct mg_request_info *, void *);
|
4111 |
|
|
static bool_t
|
4112 |
|
|
set_admin_uri_option(struct mg_context *ctx, const char *uri)
|
4113 |
|
|
{
|
4114 |
|
|
mg_set_uri_callback(ctx, uri, &admin_page, NULL);
|
4115 |
|
|
return (TRUE);
|
4116 |
|
|
}
|
4117 |
|
|
|
4118 |
|
|
/*
|
4119 |
|
|
* Check if the comma-separated list of options has a format of key-value
|
4120 |
|
|
* pairs: "k1=v1,k2=v2". Return FALSE if any entry has invalid key or value.
|
4121 |
|
|
*/
|
4122 |
|
|
static bool_t
|
4123 |
|
|
set_kv_list_option(struct mg_context *ctx, const char *str)
|
4124 |
|
|
{
|
4125 |
|
|
const char *list;
|
4126 |
|
|
struct vec key, value;
|
4127 |
|
|
|
4128 |
|
|
list = str;
|
4129 |
|
|
while ((list = next_option(list, &key, &value)) != NULL)
|
4130 |
|
|
if (key.len == 0 || value.len == 0) {
|
4131 |
|
|
cry(fc(ctx), "Invalid list specified: [%s], "
|
4132 |
|
|
"expecting key1=value1,key2=value2,...", str);
|
4133 |
|
|
return (FALSE);
|
4134 |
|
|
}
|
4135 |
|
|
|
4136 |
|
|
return (TRUE);
|
4137 |
|
|
}
|
4138 |
|
|
|
4139 |
|
|
static const struct mg_option known_options[] = {
|
4140 |
|
|
{"root", "\tWeb root directory", NULL, OPT_ROOT, NULL},
|
4141 |
|
|
{"index_files", "Index files", "index.html,index.htm,index.cgi",
|
4142 |
|
|
OPT_INDEX_FILES, NULL},
|
4143 |
|
|
#if !defined(NO_SSL)
|
4144 |
|
|
{"ssl_cert", "SSL certificate file", NULL,
|
4145 |
|
|
OPT_SSL_CERTIFICATE, &set_ssl_option},
|
4146 |
|
|
#endif /* !NO_SSL */
|
4147 |
|
|
{"ports", "Listening ports", NULL,
|
4148 |
|
|
OPT_PORTS, &set_ports_option},
|
4149 |
|
|
{"dir_list", "Directory listing", "yes",
|
4150 |
|
|
OPT_DIR_LIST, NULL},
|
4151 |
|
|
{"protect", "URI to htpasswd mapping", NULL,
|
4152 |
|
|
OPT_PROTECT, &set_kv_list_option},
|
4153 |
|
|
#if !defined(NO_CGI)
|
4154 |
|
|
{"cgi_ext", "CGI extensions", ".cgi,.pl,.php",
|
4155 |
|
|
OPT_CGI_EXTENSIONS, NULL},
|
4156 |
|
|
{"cgi_interp", "CGI interpreter to use with all CGI scripts", NULL,
|
4157 |
|
|
OPT_CGI_INTERPRETER, NULL},
|
4158 |
|
|
{"cgi_env", "Custom CGI enviroment variables", NULL,
|
4159 |
|
|
OPT_CGI_ENV, &set_kv_list_option},
|
4160 |
|
|
#endif /* NO_CGI */
|
4161 |
|
|
{"ssi_ext", "SSI extensions", ".shtml,.shtm",
|
4162 |
|
|
OPT_SSI_EXTENSIONS, NULL},
|
4163 |
|
|
{"auth_realm", "Authentication domain name", "mydomain.com",
|
4164 |
|
|
OPT_AUTH_DOMAIN, NULL},
|
4165 |
|
|
{"auth_gpass", "Global passwords file", NULL,
|
4166 |
|
|
OPT_AUTH_GPASSWD, &set_gpass_option},
|
4167 |
|
|
{"auth_PUT", "PUT,DELETE auth file", NULL,
|
4168 |
|
|
OPT_AUTH_PUT, NULL},
|
4169 |
|
|
#if !defined(_WIN32)
|
4170 |
|
|
{"uid", "\tRun as user", NULL, OPT_UID, &set_uid_option},
|
4171 |
|
|
#endif /* !_WIN32 */
|
4172 |
|
|
{"access_log", "Access log file", NULL,
|
4173 |
|
|
OPT_ACCESS_LOG, &set_alog_option},
|
4174 |
|
|
{"error_log", "Error log file", NULL,
|
4175 |
|
|
OPT_ERROR_LOG, &set_elog_option},
|
4176 |
|
|
{"aliases", "Path=URI mappings", NULL,
|
4177 |
|
|
OPT_ALIASES, &set_kv_list_option},
|
4178 |
|
|
{"admin_uri", "Administration page URI", NULL,
|
4179 |
|
|
OPT_ADMIN_URI, &set_admin_uri_option},
|
4180 |
|
|
{"acl", "\tAllow/deny IP addresses/subnets", NULL,
|
4181 |
|
|
OPT_ACL, &set_acl_option},
|
4182 |
|
|
{"max_threads", "Maximum simultaneous threads to spawn", "100",
|
4183 |
|
|
OPT_MAX_THREADS, &set_max_threads_option},
|
4184 |
|
|
{"idle_time", "Time in seconds connection stays idle", "10",
|
4185 |
|
|
OPT_IDLE_TIME, NULL},
|
4186 |
|
|
{"mime_types", "Comma separated list of ext=mime_type pairs", NULL,
|
4187 |
|
|
OPT_MIME_TYPES, &set_kv_list_option},
|
4188 |
|
|
{NULL, NULL, NULL, 0, NULL}
|
4189 |
|
|
};
|
4190 |
|
|
|
4191 |
|
|
static const struct mg_option *
|
4192 |
|
|
find_opt(const char *opt_name)
|
4193 |
|
|
{
|
4194 |
|
|
int i;
|
4195 |
|
|
|
4196 |
|
|
for (i = 0; known_options[i].name != NULL; i++)
|
4197 |
|
|
if (!strcmp(opt_name, known_options[i].name))
|
4198 |
|
|
return (known_options + i);
|
4199 |
|
|
|
4200 |
|
|
return (NULL);
|
4201 |
|
|
}
|
4202 |
|
|
|
4203 |
|
|
int
|
4204 |
|
|
mg_set_option(struct mg_context *ctx, const char *opt, const char *val)
|
4205 |
|
|
{
|
4206 |
|
|
const struct mg_option *option;
|
4207 |
|
|
int i, retval;
|
4208 |
|
|
|
4209 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: [%s]->[%s]", __func__, opt, val));
|
4210 |
|
|
if (opt != NULL && (option = find_opt(opt)) != NULL) {
|
4211 |
|
|
i = (int) (option - known_options);
|
4212 |
|
|
lock_option(ctx, i);
|
4213 |
|
|
|
4214 |
|
|
if (option->setter != NULL)
|
4215 |
|
|
retval = option->setter(ctx, val);
|
4216 |
|
|
else
|
4217 |
|
|
retval = TRUE;
|
4218 |
|
|
|
4219 |
|
|
/* Free old value if any */
|
4220 |
|
|
if (ctx->options[option->index] != NULL)
|
4221 |
|
|
free(ctx->options[option->index]);
|
4222 |
|
|
|
4223 |
|
|
/* Set new option value */
|
4224 |
|
|
ctx->options[option->index] = val ? mg_strdup(val) : NULL;
|
4225 |
|
|
unlock_option(ctx, i);
|
4226 |
|
|
|
4227 |
|
|
if (retval == FALSE)
|
4228 |
|
|
cry(fc(ctx), "%s(%s): failure", __func__, opt);
|
4229 |
|
|
} else {
|
4230 |
|
|
cry(fc(ctx), "%s: No such option: [%s]", __func__, opt);
|
4231 |
|
|
retval = -1;
|
4232 |
|
|
}
|
4233 |
|
|
|
4234 |
|
|
return (retval);
|
4235 |
|
|
}
|
4236 |
|
|
|
4237 |
|
|
void
|
4238 |
|
|
mg_show_usage_string(FILE *fp)
|
4239 |
|
|
{
|
4240 |
|
|
const struct mg_option *o;
|
4241 |
|
|
|
4242 |
|
|
(void) fprintf(stderr,
|
4243 |
|
|
"Mongoose version %s (c) Sergey Lyubka\n"
|
4244 |
|
|
"usage: mongoose [options] [config_file]\n", mg_version());
|
4245 |
|
|
|
4246 |
|
|
fprintf(fp, " -A <htpasswd_file> <realm> <user> <passwd>\n");
|
4247 |
|
|
|
4248 |
|
|
for (o = known_options; o->name != NULL; o++) {
|
4249 |
|
|
(void) fprintf(fp, " -%s\t%s", o->name, o->description);
|
4250 |
|
|
if (o->default_value != NULL)
|
4251 |
|
|
fprintf(fp, " (default: \"%s\")", o->default_value);
|
4252 |
|
|
fputc('\n', fp);
|
4253 |
|
|
}
|
4254 |
|
|
}
|
4255 |
|
|
|
4256 |
|
|
const char *
|
4257 |
|
|
mg_get_option(const struct mg_context *ctx, const char *option_name)
|
4258 |
|
|
{
|
4259 |
|
|
const struct mg_option *option;
|
4260 |
|
|
|
4261 |
|
|
if ((option = find_opt(option_name)) != NULL)
|
4262 |
|
|
return (ctx->options[option->index]);
|
4263 |
|
|
else
|
4264 |
|
|
return (NULL);
|
4265 |
|
|
}
|
4266 |
|
|
|
4267 |
|
|
static void
|
4268 |
|
|
admin_page(struct mg_connection *conn, const struct mg_request_info *ri,
|
4269 |
|
|
void *user_data)
|
4270 |
|
|
{
|
4271 |
|
|
const struct mg_option *option;
|
4272 |
|
|
const char *option_name, *option_value;
|
4273 |
|
|
|
4274 |
|
|
user_data = NULL; /* Unused */
|
4275 |
|
|
|
4276 |
|
|
(void) mg_printf(conn,
|
4277 |
|
|
"HTTP/1.1 200 OK\r\n"
|
4278 |
|
|
"Content-Type: text/html\r\n\r\n"
|
4279 |
|
|
"<html><body><h1>Mongoose v. %s</h1>", mg_version());
|
4280 |
|
|
|
4281 |
|
|
if (!strcmp(ri->request_method, "POST")) {
|
4282 |
|
|
option_name = mg_get_var(conn, "o");
|
4283 |
|
|
option_value = mg_get_var(conn, "v");
|
4284 |
|
|
if (mg_set_option(conn->ctx,
|
4285 |
|
|
option_name, option_value) == -1) {
|
4286 |
|
|
(void) mg_printf(conn,
|
4287 |
|
|
"<p style=\"background: red\">Error setting "
|
4288 |
|
|
"option \"%s\"</p>",
|
4289 |
|
|
option_name ? option_name : "(null)");
|
4290 |
|
|
} else {
|
4291 |
|
|
(void) mg_printf(conn,
|
4292 |
|
|
"<p style=\"color: green\">Saved: %s=%s</p>",
|
4293 |
|
|
option_name, option_value ? option_value : "NULL");
|
4294 |
|
|
}
|
4295 |
|
|
}
|
4296 |
|
|
|
4297 |
|
|
/* Print table with all options */
|
4298 |
|
|
(void) mg_printf(conn, "%s", "<table border=\"1\""
|
4299 |
|
|
"<tr><th>Option</th><th>Description</th>"
|
4300 |
|
|
"<th colspan=2>Value</th></tr>");
|
4301 |
|
|
|
4302 |
|
|
for (option = known_options; option->name != NULL; option++) {
|
4303 |
|
|
option_value = mg_get_option(conn->ctx, option->name);
|
4304 |
|
|
if (option_value == NULL)
|
4305 |
|
|
option_value = "";
|
4306 |
|
|
(void) mg_printf(conn,
|
4307 |
|
|
"<form method=post><tr><td>%s</td><td>%s</td>"
|
4308 |
|
|
"<input type=hidden name=o value='%s'>"
|
4309 |
|
|
"<td><input type=text name=v value='%s'></td>"
|
4310 |
|
|
"<td><input type=submit value=save></td></form></tr>",
|
4311 |
|
|
option->name, option->description,
|
4312 |
|
|
option->name, option_value);
|
4313 |
|
|
}
|
4314 |
|
|
|
4315 |
|
|
(void) mg_printf(conn, "%s", "</table></body></html>");
|
4316 |
|
|
}
|
4317 |
|
|
|
4318 |
|
|
static void
|
4319 |
|
|
reset_per_request_attributes(struct mg_connection *conn)
|
4320 |
|
|
{
|
4321 |
|
|
if (conn->request_info.remote_user != NULL) {
|
4322 |
|
|
free((void *) conn->request_info.remote_user);
|
4323 |
|
|
conn->request_info.remote_user = NULL;
|
4324 |
|
|
}
|
4325 |
|
|
if (conn->free_post_data && conn->request_info.post_data != NULL) {
|
4326 |
|
|
free((void *) conn->request_info.post_data);
|
4327 |
|
|
conn->request_info.post_data = NULL;
|
4328 |
|
|
}
|
4329 |
|
|
}
|
4330 |
|
|
|
4331 |
|
|
static void
|
4332 |
|
|
close_socket_gracefully(struct mg_connection *conn, SOCKET sock)
|
4333 |
|
|
{
|
4334 |
|
|
char buf[BUFSIZ];
|
4335 |
|
|
int n;
|
4336 |
|
|
|
4337 |
|
|
/* Send FIN to the client */
|
4338 |
|
|
(void) shutdown(sock, SHUT_WR);
|
4339 |
|
|
set_non_blocking_mode(conn, sock);
|
4340 |
|
|
|
4341 |
|
|
/*
|
4342 |
|
|
* Read and discard pending data. If we do not do that and close the
|
4343 |
|
|
* socket, the data in the send buffer may be discarded. This
|
4344 |
|
|
* behaviour is seen on Windows, when client keeps sending data
|
4345 |
|
|
* when server decide to close the connection; then when client
|
4346 |
|
|
* does recv() it gets no data back.
|
4347 |
|
|
*/
|
4348 |
|
|
do {
|
4349 |
|
|
n = pull(NULL, sock, NULL, buf, sizeof(buf));
|
4350 |
|
|
} while (n > 0);
|
4351 |
|
|
|
4352 |
|
|
/* Now we know that our FIN is ACK-ed, safe to close */
|
4353 |
|
|
(void) closesocket(sock);
|
4354 |
|
|
}
|
4355 |
|
|
|
4356 |
|
|
static void
|
4357 |
|
|
close_connection(struct mg_connection *conn)
|
4358 |
|
|
{
|
4359 |
|
|
reset_per_request_attributes(conn);
|
4360 |
|
|
|
4361 |
|
|
if (conn->ssl)
|
4362 |
|
|
SSL_free(conn->ssl);
|
4363 |
|
|
|
4364 |
|
|
if (conn->client.sock != INVALID_SOCKET)
|
4365 |
|
|
close_socket_gracefully(conn, conn->client.sock);
|
4366 |
|
|
}
|
4367 |
|
|
|
4368 |
|
|
static void
|
4369 |
|
|
reset_connection_attributes(struct mg_connection *conn)
|
4370 |
|
|
{
|
4371 |
|
|
reset_per_request_attributes(conn);
|
4372 |
|
|
conn->free_post_data = FALSE;
|
4373 |
|
|
conn->request_info.status_code = -1;
|
4374 |
|
|
conn->num_bytes_sent = 0;
|
4375 |
|
|
(void) memset(&conn->request_info, 0, sizeof(conn->request_info));
|
4376 |
|
|
}
|
4377 |
|
|
|
4378 |
|
|
static void
|
4379 |
|
|
shift_to_next(struct mg_connection *conn, char *buf, int req_len, int *nread)
|
4380 |
|
|
{
|
4381 |
|
|
uint64_t cl;
|
4382 |
|
|
int over_len, body_len;
|
4383 |
|
|
|
4384 |
|
|
cl = get_content_length(conn);
|
4385 |
|
|
over_len = *nread - req_len;
|
4386 |
|
|
assert(over_len >= 0);
|
4387 |
|
|
|
4388 |
|
|
if (cl == UNKNOWN_CONTENT_LENGTH) {
|
4389 |
|
|
body_len = 0;
|
4390 |
|
|
} else if (cl < (uint64_t) over_len) {
|
4391 |
|
|
body_len = (int) cl;
|
4392 |
|
|
} else {
|
4393 |
|
|
body_len = over_len;
|
4394 |
|
|
}
|
4395 |
|
|
|
4396 |
|
|
*nread -= req_len + body_len;
|
4397 |
|
|
(void) memmove(buf, buf + req_len + body_len, *nread);
|
4398 |
|
|
}
|
4399 |
|
|
|
4400 |
|
|
static void
|
4401 |
|
|
process_new_connection(struct mg_connection *conn)
|
4402 |
|
|
{
|
4403 |
|
|
struct mg_request_info *ri = &conn->request_info;
|
4404 |
|
|
char buf[MAX_REQUEST_SIZE];
|
4405 |
|
|
int request_len, nread;
|
4406 |
|
|
|
4407 |
|
|
nread = 0;
|
4408 |
|
|
reset_connection_attributes(conn);
|
4409 |
|
|
|
4410 |
|
|
/* If next request is not pipelined, read it in */
|
4411 |
|
|
if ((request_len = get_request_len(buf, (size_t) nread)) == 0)
|
4412 |
|
|
request_len = read_request(NULL, conn->client.sock,
|
4413 |
|
|
conn->ssl, buf, sizeof(buf), &nread);
|
4414 |
|
|
assert(nread >= request_len);
|
4415 |
|
|
|
4416 |
|
|
if (request_len <= 0)
|
4417 |
|
|
return; /* Remote end closed the connection */
|
4418 |
|
|
|
4419 |
|
|
/* 0-terminate the request: parse_request uses sscanf */
|
4420 |
|
|
buf[request_len - 1] = '\0';
|
4421 |
|
|
|
4422 |
|
|
if (parse_http_request(buf, ri, &conn->client.rsa)) {
|
4423 |
|
|
if (ri->http_version_major != 1 ||
|
4424 |
|
|
(ri->http_version_major == 1 &&
|
4425 |
|
|
(ri->http_version_minor < 0 ||
|
4426 |
|
|
ri->http_version_minor > 1))) {
|
4427 |
|
|
send_error(conn, 505,
|
4428 |
|
|
"HTTP version not supported",
|
4429 |
|
|
"%s", "Weird HTTP version");
|
4430 |
|
|
log_access(conn);
|
4431 |
|
|
} else {
|
4432 |
|
|
ri->post_data = buf + request_len;
|
4433 |
|
|
ri->post_data_len = nread - request_len;
|
4434 |
|
|
conn->birth_time = time(NULL);
|
4435 |
|
|
analyze_request(conn);
|
4436 |
|
|
log_access(conn);
|
4437 |
|
|
shift_to_next(conn, buf, request_len, &nread);
|
4438 |
|
|
}
|
4439 |
|
|
} else {
|
4440 |
|
|
/* Do not put garbage in the access log */
|
4441 |
|
|
send_error(conn, 400, "Bad Request",
|
4442 |
|
|
"Can not parse request: [%.*s]", nread, buf);
|
4443 |
|
|
}
|
4444 |
|
|
|
4445 |
|
|
}
|
4446 |
|
|
|
4447 |
|
|
/*
|
4448 |
|
|
* Worker threads take accepted socket from the queue
|
4449 |
|
|
*/
|
4450 |
|
|
static bool_t
|
4451 |
|
|
get_socket(struct mg_context *ctx, struct socket *sp)
|
4452 |
|
|
{
|
4453 |
|
|
struct timespec ts;
|
4454 |
|
|
|
4455 |
|
|
(void) pthread_mutex_lock(&ctx->thr_mutex);
|
4456 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p: going idle",
|
4457 |
|
|
__func__, (void *) pthread_self()));
|
4458 |
|
|
|
4459 |
|
|
/* If the queue is empty, wait. We're idle at this point. */
|
4460 |
|
|
ctx->num_idle++;
|
4461 |
|
|
while (ctx->sq_head == ctx->sq_tail) {
|
4462 |
|
|
ts.tv_nsec = 0;
|
4463 |
|
|
ts.tv_sec = time(NULL) + atoi(ctx->options[OPT_IDLE_TIME]) + 1;
|
4464 |
|
|
if (pthread_cond_timedwait(&ctx->empty_cond,
|
4465 |
|
|
&ctx->thr_mutex, &ts) != 0) {
|
4466 |
|
|
/* Timeout! release the mutex and return */
|
4467 |
|
|
(void) pthread_mutex_unlock(&ctx->thr_mutex);
|
4468 |
|
|
return (FALSE);
|
4469 |
|
|
}
|
4470 |
|
|
}
|
4471 |
|
|
assert(ctx->sq_head > ctx->sq_tail);
|
4472 |
|
|
|
4473 |
|
|
/* We're going busy now: got a socket to process! */
|
4474 |
|
|
ctx->num_idle--;
|
4475 |
|
|
|
4476 |
|
|
/* Copy socket from the queue and increment tail */
|
4477 |
|
|
*sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
|
4478 |
|
|
ctx->sq_tail++;
|
4479 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX
|
4480 |
|
|
"%s: thread %p grabbed socket %d, going busy",
|
4481 |
|
|
__func__, (void *) pthread_self(), sp->sock));
|
4482 |
|
|
|
4483 |
|
|
/* Wrap pointers if needed */
|
4484 |
|
|
while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
|
4485 |
|
|
ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
|
4486 |
|
|
ctx->sq_head -= ARRAY_SIZE(ctx->queue);
|
4487 |
|
|
}
|
4488 |
|
|
|
4489 |
|
|
pthread_cond_signal(&ctx->full_cond);
|
4490 |
|
|
(void) pthread_mutex_unlock(&ctx->thr_mutex);
|
4491 |
|
|
|
4492 |
|
|
return (TRUE);
|
4493 |
|
|
}
|
4494 |
|
|
|
4495 |
|
|
static void
|
4496 |
|
|
worker_thread(struct mg_context *ctx)
|
4497 |
|
|
{
|
4498 |
|
|
struct mg_connection conn;
|
4499 |
|
|
|
4500 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p starting",
|
4501 |
|
|
__func__, (void *) pthread_self()));
|
4502 |
|
|
|
4503 |
|
|
(void) memset(&conn, 0, sizeof(conn));
|
4504 |
|
|
|
4505 |
|
|
while (get_socket(ctx, &conn.client) == TRUE) {
|
4506 |
|
|
conn.birth_time = time(NULL);
|
4507 |
|
|
conn.ctx = ctx;
|
4508 |
|
|
|
4509 |
|
|
if (conn.client.is_ssl &&
|
4510 |
|
|
(conn.ssl = SSL_new(conn.ctx->ssl_ctx)) == NULL) {
|
4511 |
|
|
cry(&conn, "%s: SSL_new: %d", __func__, ERRNO);
|
4512 |
|
|
} else if (conn.client.is_ssl &&
|
4513 |
|
|
SSL_set_fd(conn.ssl, conn.client.sock) != 1) {
|
4514 |
|
|
cry(&conn, "%s: SSL_set_fd: %d", __func__, ERRNO);
|
4515 |
|
|
} else if (conn.client.is_ssl && SSL_accept(conn.ssl) != 1) {
|
4516 |
|
|
cry(&conn, "%s: SSL handshake error", __func__);
|
4517 |
|
|
} else {
|
4518 |
|
|
process_new_connection(&conn);
|
4519 |
|
|
}
|
4520 |
|
|
|
4521 |
|
|
close_connection(&conn);
|
4522 |
|
|
}
|
4523 |
|
|
|
4524 |
|
|
/* Signal master that we're done with connection and exiting */
|
4525 |
|
|
pthread_mutex_lock(&conn.ctx->thr_mutex);
|
4526 |
|
|
conn.ctx->num_threads--;
|
4527 |
|
|
conn.ctx->num_idle--;
|
4528 |
|
|
pthread_cond_signal(&conn.ctx->thr_cond);
|
4529 |
|
|
assert(conn.ctx->num_threads >= 0);
|
4530 |
|
|
pthread_mutex_unlock(&conn.ctx->thr_mutex);
|
4531 |
|
|
|
4532 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p exiting",
|
4533 |
|
|
__func__, (void *) pthread_self()));
|
4534 |
|
|
}
|
4535 |
|
|
|
4536 |
|
|
/*
|
4537 |
|
|
* Master thread adds accepted socket to a queue
|
4538 |
|
|
*/
|
4539 |
|
|
static void
|
4540 |
|
|
put_socket(struct mg_context *ctx, const struct socket *sp)
|
4541 |
|
|
{
|
4542 |
|
|
(void) pthread_mutex_lock(&ctx->thr_mutex);
|
4543 |
|
|
|
4544 |
|
|
/* If the queue is full, wait */
|
4545 |
|
|
while (ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue))
|
4546 |
|
|
(void) pthread_cond_wait(&ctx->full_cond, &ctx->thr_mutex);
|
4547 |
|
|
assert(ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue));
|
4548 |
|
|
|
4549 |
|
|
/* Copy socket to the queue and increment head */
|
4550 |
|
|
ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
|
4551 |
|
|
ctx->sq_head++;
|
4552 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: queued socket %d",
|
4553 |
|
|
__func__, sp->sock));
|
4554 |
|
|
|
4555 |
|
|
/* If there are no idle threads, start one */
|
4556 |
|
|
if (ctx->num_idle == 0 && ctx->num_threads < ctx->max_threads) {
|
4557 |
|
|
if (start_thread(ctx,
|
4558 |
|
|
(mg_thread_func_t) worker_thread, ctx) != 0)
|
4559 |
|
|
cry(fc(ctx), "Cannot start thread: %d", ERRNO);
|
4560 |
|
|
else
|
4561 |
|
|
ctx->num_threads++;
|
4562 |
|
|
}
|
4563 |
|
|
|
4564 |
|
|
pthread_cond_signal(&ctx->empty_cond);
|
4565 |
|
|
(void) pthread_mutex_unlock(&ctx->thr_mutex);
|
4566 |
|
|
}
|
4567 |
|
|
|
4568 |
|
|
static void
|
4569 |
|
|
accept_new_connection(const struct socket *listener, struct mg_context *ctx)
|
4570 |
|
|
{
|
4571 |
|
|
struct socket accepted;
|
4572 |
|
|
|
4573 |
|
|
accepted.rsa.len = sizeof(accepted.rsa.u.sin);
|
4574 |
|
|
accepted.lsa = listener->lsa;
|
4575 |
|
|
if ((accepted.sock = accept(listener->sock,
|
4576 |
|
|
&accepted.rsa.u.sa, &accepted.rsa.len)) == INVALID_SOCKET)
|
4577 |
|
|
return;
|
4578 |
|
|
|
4579 |
|
|
lock_option(ctx, OPT_ACL);
|
4580 |
|
|
if (ctx->options[OPT_ACL] != NULL &&
|
4581 |
|
|
!check_acl(ctx, ctx->options[OPT_ACL], &accepted.rsa)) {
|
4582 |
|
|
cry(fc(ctx), "%s: %s is not allowed to connect",
|
4583 |
|
|
__func__, inet_ntoa(accepted.rsa.u.sin.sin_addr));
|
4584 |
|
|
(void) closesocket(accepted.sock);
|
4585 |
|
|
unlock_option(ctx, OPT_ACL);
|
4586 |
|
|
return;
|
4587 |
|
|
}
|
4588 |
|
|
unlock_option(ctx, OPT_ACL);
|
4589 |
|
|
|
4590 |
|
|
/* Put accepted socket structure into the queue */
|
4591 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: accepted socket %d",
|
4592 |
|
|
__func__, accepted.sock));
|
4593 |
|
|
accepted.is_ssl = listener->is_ssl;
|
4594 |
|
|
put_socket(ctx, &accepted);
|
4595 |
|
|
}
|
4596 |
|
|
|
4597 |
|
|
static void
|
4598 |
|
|
master_thread(struct mg_context *ctx)
|
4599 |
|
|
{
|
4600 |
|
|
fd_set read_set;
|
4601 |
|
|
struct timeval tv;
|
4602 |
|
|
int i, max_fd;
|
4603 |
|
|
|
4604 |
|
|
while (ctx->stop_flag == 0) {
|
4605 |
|
|
FD_ZERO(&read_set);
|
4606 |
|
|
max_fd = -1;
|
4607 |
|
|
|
4608 |
|
|
/* Add listening sockets to the read set */
|
4609 |
|
|
lock_option(ctx, OPT_PORTS);
|
4610 |
|
|
for (i = 0; i < ctx->num_listeners; i++)
|
4611 |
|
|
add_to_set(ctx->listeners[i].sock, &read_set, &max_fd);
|
4612 |
|
|
unlock_option(ctx, OPT_PORTS);
|
4613 |
|
|
|
4614 |
|
|
tv.tv_sec = 1;
|
4615 |
|
|
tv.tv_usec = 0;
|
4616 |
|
|
|
4617 |
|
|
if (select(max_fd + 1, &read_set, NULL, NULL, &tv) < 0) {
|
4618 |
|
|
#ifdef _WIN32
|
4619 |
|
|
/*
|
4620 |
|
|
* On windows, if read_set and write_set are empty,
|
4621 |
|
|
* select() returns "Invalid parameter" error
|
4622 |
|
|
* (at least on my Windows XP Pro). So in this case,
|
4623 |
|
|
* we sleep here.
|
4624 |
|
|
*/
|
4625 |
|
|
sleep(1);
|
4626 |
|
|
#endif /* _WIN32 */
|
4627 |
|
|
} else {
|
4628 |
|
|
lock_option(ctx, OPT_PORTS);
|
4629 |
|
|
for (i = 0; i < ctx->num_listeners; i++)
|
4630 |
|
|
if (FD_ISSET(ctx->listeners[i].sock, &read_set))
|
4631 |
|
|
accept_new_connection(
|
4632 |
|
|
ctx->listeners + i, ctx);
|
4633 |
|
|
unlock_option(ctx, OPT_PORTS);
|
4634 |
|
|
}
|
4635 |
|
|
}
|
4636 |
|
|
|
4637 |
|
|
/* Stop signal received: somebody called mg_stop. Quit. */
|
4638 |
|
|
mg_fini(ctx);
|
4639 |
|
|
}
|
4640 |
|
|
|
4641 |
|
|
void
|
4642 |
|
|
mg_stop(struct mg_context *ctx)
|
4643 |
|
|
{
|
4644 |
|
|
ctx->stop_flag = 1;
|
4645 |
|
|
|
4646 |
|
|
/* Wait until mg_fini() stops */
|
4647 |
|
|
while (ctx->stop_flag != 2)
|
4648 |
|
|
(void) sleep(1);
|
4649 |
|
|
|
4650 |
|
|
assert(ctx->num_threads == 0);
|
4651 |
|
|
free(ctx);
|
4652 |
|
|
|
4653 |
|
|
#if defined(_WIN32)
|
4654 |
|
|
(void) WSACleanup();
|
4655 |
|
|
#endif /* _WIN32 */
|
4656 |
|
|
}
|
4657 |
|
|
|
4658 |
|
|
struct mg_context *
|
4659 |
|
|
mg_start(void)
|
4660 |
|
|
{
|
4661 |
|
|
struct mg_context *ctx;
|
4662 |
|
|
const struct mg_option *option;
|
4663 |
|
|
char web_root[FILENAME_MAX];
|
4664 |
|
|
int i;
|
4665 |
|
|
|
4666 |
|
|
#if defined(_WIN32)
|
4667 |
|
|
WSADATA data;
|
4668 |
|
|
WSAStartup(MAKEWORD(2,2), &data);
|
4669 |
|
|
#endif /* _WIN32 */
|
4670 |
|
|
|
4671 |
|
|
if ((ctx = (struct mg_context *) calloc(1, sizeof(*ctx))) == NULL) {
|
4672 |
|
|
cry(fc(ctx), "cannot allocate mongoose context");
|
4673 |
|
|
return (NULL);
|
4674 |
|
|
}
|
4675 |
|
|
|
4676 |
|
|
ctx->error_log = stderr;
|
4677 |
|
|
mg_set_log_callback(ctx, builtin_error_log);
|
4678 |
|
|
|
4679 |
|
|
/* Initialize options. First pass: set default option values */
|
4680 |
|
|
for (option = known_options; option->name != NULL; option++)
|
4681 |
|
|
ctx->options[option->index] = option->default_value == NULL ?
|
4682 |
|
|
NULL : mg_strdup(option->default_value);
|
4683 |
|
|
|
4684 |
|
|
/* Call setter functions */
|
4685 |
|
|
for (option = known_options; option->name != NULL; option++)
|
4686 |
|
|
if (option->setter != NULL &&
|
4687 |
|
|
ctx->options[option->index] != NULL)
|
4688 |
|
|
if (option->setter(ctx,
|
4689 |
|
|
ctx->options[option->index]) == FALSE) {
|
4690 |
|
|
mg_fini(ctx);
|
4691 |
|
|
return (NULL);
|
4692 |
|
|
}
|
4693 |
|
|
|
4694 |
|
|
/* Initial document root is set to current working directory */
|
4695 |
|
|
if (ctx->options[OPT_ROOT] == NULL) {
|
4696 |
|
|
if (mg_getcwd(web_root, sizeof(web_root)) == NULL) {
|
4697 |
|
|
cry(fc(ctx), "%s: getcwd: %s",
|
4698 |
|
|
__func__, strerror(errno));
|
4699 |
|
|
mg_strlcpy(web_root, ".", sizeof(web_root));
|
4700 |
|
|
}
|
4701 |
|
|
ctx->options[OPT_ROOT] = mg_strdup(web_root);
|
4702 |
|
|
}
|
4703 |
|
|
|
4704 |
|
|
DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: root [%s]",
|
4705 |
|
|
__func__, ctx->options[OPT_ROOT]));
|
4706 |
|
|
|
4707 |
|
|
#if !defined(_WIN32)
|
4708 |
|
|
/*
|
4709 |
|
|
* Ignore SIGPIPE signal, so if browser cancels the request, it
|
4710 |
|
|
* won't kill the whole process.
|
4711 |
|
|
*/
|
4712 |
|
|
(void) signal(SIGPIPE, SIG_IGN);
|
4713 |
|
|
#endif /* _WIN32 */
|
4714 |
|
|
|
4715 |
|
|
/* Initialize options mutexes */
|
4716 |
|
|
for (i = 0; i < NUM_OPTIONS; i++)
|
4717 |
|
|
(void) pthread_mutex_init(&ctx->opt_mutex[i], NULL);
|
4718 |
|
|
|
4719 |
|
|
(void) pthread_mutex_init(&ctx->thr_mutex, NULL);
|
4720 |
|
|
(void) pthread_mutex_init(&ctx->bind_mutex, NULL);
|
4721 |
|
|
(void) pthread_cond_init(&ctx->thr_cond, NULL);
|
4722 |
|
|
(void) pthread_cond_init(&ctx->empty_cond, NULL);
|
4723 |
|
|
(void) pthread_cond_init(&ctx->full_cond, NULL);
|
4724 |
|
|
|
4725 |
|
|
/* Start master (listening) thread */
|
4726 |
|
|
start_thread(ctx, (mg_thread_func_t) master_thread, ctx);
|
4727 |
|
|
|
4728 |
|
|
return (ctx);
|
4729 |
|
|
}
|