1 |
/*********************************************************************
|
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*
|
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* HTTP Implementation for Microchip TCP/IP Stack
|
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*
|
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**********************************************************************
|
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* FileName: Http.c
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* Dependencies: string.h
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* Stacktsk.h
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* Http.h
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* MPFS.h
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* TCP.h
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* Processor: PIC18
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* Complier: MCC18 v1.00.50 or higher
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* HITECH PICC-18 V8.10PL1 or higher
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* Company: Microchip Technology, Inc.
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*
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* Software License Agreement
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*
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* The software supplied herewith by Microchip Technology Incorporated
|
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* (the “Company”) for its PICmicro® Microcontroller is intended and
|
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* supplied to you, the Company’s customer, for use solely and
|
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* exclusively on Microchip PICmicro Microcontroller products. The
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* software is owned by the Company and/or its supplier, and is
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* protected under applicable copyright laws. All rights are reserved.
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* Any use in violation of the foregoing restrictions may subject the
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* user to criminal sanctions under applicable laws, as well as to
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* civil liability for the breach of the terms and conditions of this
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* license.
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*
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* THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
|
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* TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
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* PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
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* IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
|
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* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
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*
|
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* HiTech PICC18 Compiler Options excluding device selection:
|
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* -FAKELOCAL -G -O -Zg -E -C
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*
|
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*
|
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*
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*
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* Author Date Comment
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*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Nilesh Rajbharti 8/14/01 Original
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* Nilesh Rajbharti 9/12/01 Released (Rev. 1.0)
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* Nilesh Rajbharti 2/9/02 Cleanup
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* Nilesh Rajbharti 5/22/02 Rev 2.0 (See version.log for detail)
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* Nilesh Rajbharti 7/9/02 Rev 2.1 (Fixed HTTPParse bug)
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********************************************************************/
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#define THIS_IS_HTTP_SERVER
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#include <string.h>
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54 |
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#include "stacktsk.h"
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56 |
#include "http.h"
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#include "mpfs.h"
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#include "tcp.h"
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59 |
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#if !defined(STACK_USE_HTTP_SERVER)
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#error HTTP Server module is not enabled.
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#error Remove this file from your project to reduce your code size.
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#endif
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65 |
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66 |
|
67 |
|
68 |
|
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#if (MAC_TX_BUFFER_SIZE <= 130 || MAC_TX_BUFFER_SIZE > 1500 )
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#error HTTP : Invalid MAC_TX_BUFFER_SIZE value specified.
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#endif
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73 |
|
74 |
/*
|
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* Each dynamic variable within a CGI file should be preceeded with
|
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* this character.
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*/
|
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#define HTTP_VAR_ESC_CHAR '%'
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79 |
#define HTTP_DYNAMIC_FILE_TYPE (HTTP_CGI)
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80 |
|
81 |
/*
|
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* HTTP File Types
|
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*/
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#define HTTP_TXT (0)
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#define HTTP_HTML (1)
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#define HTTP_GIF (2)
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#define HTTP_CGI (3)
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#define HTTP_JPG (4)
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#define HTTP_JAVA (5)
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#define HTTP_WAV (6)
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#define HTTP_UNKNOWN (7)
|
92 |
|
93 |
|
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#define FILE_EXT_LEN (3)
|
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typedef struct _FILE_TYPES
|
96 |
{
|
97 |
char fileExt[FILE_EXT_LEN+1];
|
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} FILE_TYPES;
|
99 |
|
100 |
|
101 |
|
102 |
|
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/*
|
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* Each entry in this structure must be in UPPER case.
|
105 |
* Order of these entries must match with those defined
|
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* by "HTTP File Types" defines.
|
107 |
*/
|
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static ROM FILE_TYPES httpFiles[] =
|
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{
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{ "TXT" }, // HTTP_TXT
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{ "HTM" }, // HTTP_HTML
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{ "GIF" }, // HTTP_GIF
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{ "CGI" }, // HTTP_CGI
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{ "JPG" }, // HTTP_JPG
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{ "CLA" }, // HTTP_JAVA
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{ "WAV" } // HTTP_WAV
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};
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#define TOTAL_FILE_TYPES ( sizeof(httpFiles)/sizeof(httpFiles[0]) )
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typedef struct _HTTP_CONTENT
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{
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ROM char typeString[20];
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} HTTP_CONTENT;
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/*
|
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* Content entry order must match with those "HTTP File Types" define's.
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*/
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static ROM HTTP_CONTENT httpContents[] =
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{
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{ "text/plain" }, // HTTP_TXT
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{ "text/html" }, // HTTP_HTML
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{ "image/gif" }, // HTTP_GIF
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{ "text/html" }, // HTTP_CGI
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{ "image/jpeg" }, // HTTP_JPG
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{ "application/java-vm" }, // HTTP_JAVA
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{ "audio/x-wave" } // HTTP_WAV
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};
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#define TOTAL_HTTP_CONTENTS ( sizeof(httpContents)/sizeof(httpConetents[0]) )
|
140 |
|
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/*
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* HTTP FSM states for each connection.
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143 |
*/
|
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typedef enum _SM_HTTP
|
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{
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SM_HTTP_IDLE,
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SM_HTTP_GET,
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SM_HTTP_NOT_FOUND,
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SM_HTTP_GET_READ,
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SM_HTTP_GET_PASS,
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SM_HTTP_GET_DLE,
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SM_HTTP_GET_HANDLE,
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SM_HTTP_GET_HANDLE_NEXT,
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SM_HTTP_GET_VAR,
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SM_HTTP_DISCONNECT,
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SM_HTTP_DISCONNECT_WAIT,
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SM_HTTP_HEADER,
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SM_HTTP_DISCARD
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} SM_HTTP;
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/*
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* Supported HTTP Commands
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*/
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typedef enum _HTTP_COMMAND
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{
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HTTP_GET,
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HTTP_POST,
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HTTP_NOT_SUPPORTED,
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HTTP_INVALID_COMMAND
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} HTTP_COMMAND;
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/*
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* HTTP Connection Info - one for each connection.
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*/
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typedef struct _HTTP_INFO
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179 |
{
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TCP_SOCKET socket;
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MPFS file;
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SM_HTTP smHTTP;
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BYTE smHTTPGet;
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WORD VarRef;
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BYTE bProcess;
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BYTE Variable;
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BYTE fileType;
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} HTTP_INFO;
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typedef BYTE HTTP_HANDLE;
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190 |
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191 |
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192 |
typedef enum
|
193 |
{
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HTTP_NOT_FOUND,
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HTTP_OK,
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HTTP_HEADER_END,
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HTTP_NOT_AVAILABLE
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} HTTP_MESSAGES;
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/*
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* Following message order must match with that of HTTP_MESSAGES
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* enum.
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203 |
*/
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static ROM char *HTTPMessages[] =
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{
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"HTTP/1.0 404 Not found\r\n\r\nNot found.\r\n",
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"HTTP/1.0 200 OK\r\n\Content-type: ",
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"\r\n\r\n",
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"HTTP/1.0 503 \r\n\r\nService Unavailable\r\n"
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};
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211 |
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212 |
|
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/*
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* Standard HTTP messages.
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*/
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216 |
ROM BYTE HTTP_OK_STRING[] = \
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217 |
"HTTP/1.0 200 OK\r\nContent-type: ";
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218 |
#define HTTP_OK_STRING_LEN \
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(sizeof(HTTP_OK_STRING)-1)
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220 |
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ROM BYTE HTTP_HEADER_END_STRING[] = \
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"\r\n\r\n";
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223 |
#define HTTP_HEADER_END_STRING_LEN \
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(sizeof(HTTP_HEADER_END_STRING)-1)
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225 |
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226 |
/*
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227 |
* HTTP Command Strings
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*/
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229 |
ROM BYTE HTTP_GET_STRING[] = \
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"GET";
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#define HTTP_GET_STRING_LEN \
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(sizeof(HTTP_GET_STRING)-1)
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/*
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* Default HTML file.
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*/
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ROM BYTE HTTP_DEFAULT_FILE_STRING[] = \
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"INDEX.HTM";
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239 |
#define HTTP_DEFAULT_FILE_STRING_LEN \
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(sizeof(HTTP_DEFAULT_FILE_STRING)-1)
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241 |
|
242 |
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/*
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244 |
* Maximum nuber of arguments supported by this HTTP Server.
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245 |
*/
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246 |
#define MAX_HTTP_ARGS (5)
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247 |
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248 |
/*
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249 |
* Maximum HTML Command String length.
|
250 |
*/
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251 |
#define MAX_HTML_CMD_LEN (80)
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252 |
|
253 |
|
254 |
static HTTP_INFO HCB[MAX_HTTP_CONNECTIONS];
|
255 |
|
256 |
|
257 |
static void HTTPProcess(HTTP_HANDLE h);
|
258 |
static HTTP_COMMAND HTTPParse(BYTE *string,
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259 |
BYTE** arg,
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260 |
BYTE* argc,
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261 |
BYTE* type);
|
262 |
static BOOL SendFile(HTTP_INFO* ph);
|
263 |
|
264 |
|
265 |
|
266 |
|
267 |
/*********************************************************************
|
268 |
* Function: void HTTPInit(void)
|
269 |
*
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270 |
* PreCondition: TCP must already be initialized.
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271 |
*
|
272 |
* Input: None
|
273 |
*
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274 |
* Output: HTTP FSM and connections are initialized
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275 |
*
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276 |
* Side Effects: None
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277 |
*
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278 |
* Overview: Set all HTTP connections to Listening state.
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279 |
* Initialize FSM for each connection.
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280 |
*
|
281 |
* Note: This function is called only one during lifetime
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282 |
* of the application.
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283 |
********************************************************************/
|
284 |
void HTTPInit(void)
|
285 |
{
|
286 |
BYTE i;
|
287 |
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288 |
for ( i = 0; i < MAX_HTTP_CONNECTIONS; i++ )
|
289 |
{
|
290 |
HCB[i].socket = TCPListen(HTTP_PORT);
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HCB[i].smHTTP = SM_HTTP_IDLE;
|
292 |
}
|
293 |
}
|
294 |
|
295 |
|
296 |
|
297 |
/*********************************************************************
|
298 |
* Function: void HTTPServer(void)
|
299 |
*
|
300 |
* PreCondition: HTTPInit() must already be called.
|
301 |
*
|
302 |
* Input: None
|
303 |
*
|
304 |
* Output: Opened HTTP connections are served.
|
305 |
*
|
306 |
* Side Effects: None
|
307 |
*
|
308 |
* Overview: Browse through each connections and let it
|
309 |
* handle its connection.
|
310 |
* If a connection is not finished, do not process
|
311 |
* next connections. This must be done, all
|
312 |
* connections use some static variables that are
|
313 |
* common.
|
314 |
*
|
315 |
* Note: This function acts as a task (similar to one in
|
316 |
* RTOS). This function performs its task in
|
317 |
* co-operative manner. Main application must call
|
318 |
* this function repeatdly to ensure all open
|
319 |
* or new connections are served on time.
|
320 |
********************************************************************/
|
321 |
void HTTPServer(void)
|
322 |
{
|
323 |
BYTE conn;
|
324 |
|
325 |
for ( conn = 0; conn < MAX_HTTP_CONNECTIONS; conn++ )
|
326 |
HTTPProcess(conn);
|
327 |
}
|
328 |
|
329 |
|
330 |
/*********************************************************************
|
331 |
* Function: static BOOL HTTPProcess(HTTP_HANDLE h)
|
332 |
*
|
333 |
* PreCondition: HTTPInit() called.
|
334 |
*
|
335 |
* Input: h - Index to the handle which needs to be
|
336 |
* processed.
|
337 |
*
|
338 |
* Output: Connection referred by 'h' is served.
|
339 |
*
|
340 |
* Side Effects: None
|
341 |
*
|
342 |
* Overview:
|
343 |
*
|
344 |
* Note: None.
|
345 |
********************************************************************/
|
346 |
static void HTTPProcess(HTTP_HANDLE h)
|
347 |
{
|
348 |
BYTE httpData[MAX_HTML_CMD_LEN+1];
|
349 |
HTTP_COMMAND httpCommand;
|
350 |
WORD httpLength;
|
351 |
BOOL lbContinue;
|
352 |
BYTE *arg[MAX_HTTP_ARGS];
|
353 |
BYTE argc;
|
354 |
BYTE i;
|
355 |
HTTP_INFO* ph;
|
356 |
ROM char* romString;
|
357 |
|
358 |
ph = &HCB[h];
|
359 |
|
360 |
lbContinue = TRUE;
|
361 |
while( lbContinue )
|
362 |
{
|
363 |
lbContinue = FALSE;
|
364 |
|
365 |
/*
|
366 |
* If during handling of HTTP socket, it gets disconnected,
|
367 |
* forget about previous processing and return to idle state.
|
368 |
*/
|
369 |
if ( !TCPIsConnected(ph->socket) )
|
370 |
{
|
371 |
ph->smHTTP = SM_HTTP_IDLE;
|
372 |
break;
|
373 |
}
|
374 |
|
375 |
|
376 |
switch(ph->smHTTP)
|
377 |
{
|
378 |
case SM_HTTP_IDLE:
|
379 |
if ( TCPIsGetReady(ph->socket) )
|
380 |
{
|
381 |
lbContinue = TRUE;
|
382 |
|
383 |
httpLength = 0;
|
384 |
while( httpLength < MAX_HTML_CMD_LEN &&
|
385 |
TCPGet(ph->socket, &httpData[httpLength++]) );
|
386 |
httpData[httpLength] = '\0';
|
387 |
TCPDiscard(ph->socket);
|
388 |
|
389 |
ph->smHTTP = SM_HTTP_NOT_FOUND;
|
390 |
argc = MAX_HTTP_ARGS;
|
391 |
httpCommand = HTTPParse(httpData, arg, &argc, &ph->fileType);
|
392 |
if ( httpCommand == HTTP_GET )
|
393 |
{
|
394 |
/*
|
395 |
* If there are any arguments, this must be a remote command.
|
396 |
* Execute it and then send the file.
|
397 |
* The file name may be modified by command handler.
|
398 |
*/
|
399 |
if ( argc > 1 )
|
400 |
{
|
401 |
/*
|
402 |
* Let main application handle this remote command.
|
403 |
*/
|
404 |
HTTPExecCmd(&arg[0], argc);
|
405 |
|
406 |
/*
|
407 |
* Command handler must have modified arg[0] which now
|
408 |
* points to actual file that will be sent as a result of
|
409 |
* this remote command.
|
410 |
*/
|
411 |
|
412 |
/*
|
413 |
* Assume that Web author will only use CGI or HTML
|
414 |
* file for remote command.
|
415 |
*/
|
416 |
ph->fileType = HTTP_CGI;
|
417 |
}
|
418 |
|
419 |
ph->file = MPFSOpen(arg[0]);
|
420 |
if ( ph->file == MPFS_INVALID )
|
421 |
{
|
422 |
ph->Variable = HTTP_NOT_FOUND;
|
423 |
ph->smHTTP = SM_HTTP_NOT_FOUND;
|
424 |
}
|
425 |
else if ( ph->file == MPFS_NOT_AVAILABLE )
|
426 |
{
|
427 |
ph->Variable = HTTP_NOT_AVAILABLE;
|
428 |
ph->smHTTP = SM_HTTP_NOT_FOUND;
|
429 |
}
|
430 |
else
|
431 |
{
|
432 |
ph->smHTTP = SM_HTTP_HEADER;
|
433 |
}
|
434 |
}
|
435 |
}
|
436 |
break;
|
437 |
|
438 |
case SM_HTTP_NOT_FOUND:
|
439 |
if ( TCPIsPutReady(ph->socket) )
|
440 |
{
|
441 |
romString = HTTPMessages[ph->Variable];
|
442 |
|
443 |
while( (i = *romString++) )
|
444 |
TCPPut(ph->socket, i);
|
445 |
|
446 |
TCPFlush(ph->socket);
|
447 |
ph->smHTTP = SM_HTTP_DISCONNECT;
|
448 |
}
|
449 |
break;
|
450 |
|
451 |
case SM_HTTP_HEADER:
|
452 |
if ( TCPIsPutReady(ph->socket) )
|
453 |
{
|
454 |
lbContinue = TRUE;
|
455 |
|
456 |
for ( i = 0; i < HTTP_OK_STRING_LEN; i++ )
|
457 |
TCPPut(ph->socket, HTTP_OK_STRING[i]);
|
458 |
|
459 |
romString = httpContents[ph->fileType].typeString;
|
460 |
while( (i = *romString++) )
|
461 |
TCPPut(ph->socket, i);
|
462 |
|
463 |
for ( i = 0; i < HTTP_HEADER_END_STRING_LEN; i++ )
|
464 |
TCPPut(ph->socket, HTTP_HEADER_END_STRING[i]);
|
465 |
|
466 |
if ( ph->fileType == HTTP_DYNAMIC_FILE_TYPE )
|
467 |
ph->bProcess = TRUE;
|
468 |
else
|
469 |
ph->bProcess = FALSE;
|
470 |
|
471 |
ph->smHTTPGet = SM_HTTP_GET_READ;
|
472 |
ph->smHTTP = SM_HTTP_GET;
|
473 |
}
|
474 |
break;
|
475 |
|
476 |
|
477 |
case SM_HTTP_GET:
|
478 |
if ( TCPIsGetReady(ph->socket) )
|
479 |
TCPDiscard(ph->socket);
|
480 |
|
481 |
if ( SendFile(ph) )
|
482 |
{
|
483 |
MPFSClose();
|
484 |
ph->smHTTP = SM_HTTP_DISCONNECT;
|
485 |
|
486 |
}
|
487 |
break;
|
488 |
|
489 |
case SM_HTTP_DISCONNECT:
|
490 |
if ( TCPIsConnected(ph->socket) )
|
491 |
{
|
492 |
if ( TCPIsPutReady(ph->socket) )
|
493 |
{
|
494 |
TCPDisconnect(ph->socket);
|
495 |
|
496 |
/*
|
497 |
* Switch to not-handled state. This FSM has
|
498 |
* one common action that checks for disconnect
|
499 |
* condition and returns to Idle state.
|
500 |
*/
|
501 |
ph->smHTTP = SM_HTTP_DISCONNECT_WAIT;
|
502 |
}
|
503 |
}
|
504 |
break;
|
505 |
|
506 |
}
|
507 |
}
|
508 |
}
|
509 |
|
510 |
|
511 |
/*********************************************************************
|
512 |
* Function: static BOOL SendFile(HTTP_INFO* ph)
|
513 |
*
|
514 |
* PreCondition: None
|
515 |
*
|
516 |
* Input: ph - A HTTP connection info.
|
517 |
*
|
518 |
* Output: File reference by this connection is served.
|
519 |
*
|
520 |
* Side Effects: None
|
521 |
*
|
522 |
* Overview: None
|
523 |
*
|
524 |
* Note: None.
|
525 |
********************************************************************/
|
526 |
static BOOL SendFile(HTTP_INFO* ph)
|
527 |
{
|
528 |
BOOL lbTransmit;
|
529 |
BYTE c;
|
530 |
|
531 |
MPFSGetBegin(ph->file);
|
532 |
|
533 |
while( TCPIsPutReady(ph->socket) )
|
534 |
{
|
535 |
lbTransmit = FALSE;
|
536 |
|
537 |
if ( ph->smHTTPGet != SM_HTTP_GET_VAR )
|
538 |
{
|
539 |
c = MPFSGet();
|
540 |
if ( MPFSIsEOF() )
|
541 |
{
|
542 |
MPFSGetEnd();
|
543 |
TCPFlush(ph->socket);
|
544 |
return TRUE;
|
545 |
}
|
546 |
}
|
547 |
|
548 |
if ( ph->bProcess )
|
549 |
{
|
550 |
switch(ph->smHTTPGet)
|
551 |
{
|
552 |
case SM_HTTP_GET_READ:
|
553 |
if ( c == HTTP_VAR_ESC_CHAR )
|
554 |
ph->smHTTPGet = SM_HTTP_GET_DLE;
|
555 |
else
|
556 |
lbTransmit = TRUE;
|
557 |
break;
|
558 |
|
559 |
case SM_HTTP_GET_DLE:
|
560 |
if ( c == HTTP_VAR_ESC_CHAR )
|
561 |
{
|
562 |
lbTransmit = TRUE;
|
563 |
ph->smHTTPGet = SM_HTTP_GET_READ;
|
564 |
}
|
565 |
else
|
566 |
{
|
567 |
ph->Variable = (c - '0') << 4;
|
568 |
ph->smHTTPGet = SM_HTTP_GET_HANDLE;
|
569 |
}
|
570 |
break;
|
571 |
|
572 |
case SM_HTTP_GET_HANDLE:
|
573 |
ph->Variable |= (c - '0');
|
574 |
|
575 |
ph->smHTTPGet = SM_HTTP_GET_VAR;
|
576 |
ph->VarRef = HTTP_START_OF_VAR;
|
577 |
|
578 |
break;
|
579 |
|
580 |
case SM_HTTP_GET_VAR:
|
581 |
ph->VarRef = HTTPGetVar(ph->Variable, ph->VarRef, &c);
|
582 |
lbTransmit = TRUE;
|
583 |
if ( ph->VarRef == HTTP_END_OF_VAR )
|
584 |
ph->smHTTPGet = SM_HTTP_GET_READ;
|
585 |
break;
|
586 |
|
587 |
default:
|
588 |
while(1);
|
589 |
}
|
590 |
|
591 |
if ( lbTransmit )
|
592 |
TCPPut(ph->socket, c);
|
593 |
}
|
594 |
else
|
595 |
TCPPut(ph->socket, c);
|
596 |
|
597 |
}
|
598 |
|
599 |
ph->file = MPFSGetEnd();
|
600 |
|
601 |
// We are not done sending a file yet...
|
602 |
return FALSE;
|
603 |
}
|
604 |
|
605 |
|
606 |
/*********************************************************************
|
607 |
* Function: static HTTP_COMMAND HTTPParse(BYTE *string,
|
608 |
* BYTE** arg,
|
609 |
* BYTE* argc,
|
610 |
* BYTE* type)
|
611 |
*
|
612 |
* PreCondition: None
|
613 |
*
|
614 |
* Input: string - HTTP Command String
|
615 |
* arg - List of string pointer to hold
|
616 |
* HTTP arguments.
|
617 |
* argc - Pointer to hold total number of
|
618 |
* arguments in this command string/
|
619 |
* type - Pointer to hold type of file
|
620 |
* received.
|
621 |
* Valid values are:
|
622 |
* HTTP_TXT
|
623 |
* HTTP_HTML
|
624 |
* HTTP_GIF
|
625 |
* HTTP_CGI
|
626 |
* HTTP_UNKNOWN
|
627 |
*
|
628 |
* Output: HTTP FSM and connections are initialized
|
629 |
*
|
630 |
* Side Effects: None
|
631 |
*
|
632 |
* Overview: None
|
633 |
*
|
634 |
* Note: This function parses URL that may or may not
|
635 |
* contain arguments.
|
636 |
* e.g. "GET HTTP/1.0 thank.htm?name=MCHP&age=12"
|
637 |
* would be returned as below:
|
638 |
* arg[0] => GET
|
639 |
* arg[1] => thank.htm
|
640 |
* arg[2] => name
|
641 |
* arg[3] => MCHP
|
642 |
* arg[4] => 12
|
643 |
* argc = 5
|
644 |
*
|
645 |
* This parses does not "de-escape" URL string.
|
646 |
********************************************************************/
|
647 |
static HTTP_COMMAND HTTPParse(BYTE *string,
|
648 |
BYTE** arg,
|
649 |
BYTE* argc,
|
650 |
BYTE* type)
|
651 |
{
|
652 |
BYTE i;
|
653 |
BYTE smParse;
|
654 |
HTTP_COMMAND cmd;
|
655 |
BYTE *ext;
|
656 |
BYTE c;
|
657 |
ROM char* fileType;
|
658 |
|
659 |
enum
|
660 |
{
|
661 |
SM_PARSE_IDLE,
|
662 |
SM_PARSE_ARG,
|
663 |
SM_PARSE_ARG_FORMAT
|
664 |
};
|
665 |
|
666 |
smParse = SM_PARSE_IDLE;
|
667 |
ext = NULL;
|
668 |
i = 0;
|
669 |
|
670 |
// Only "GET" is supported for time being.
|
671 |
if ( !memcmppgm2ram(string, (ROM void*) HTTP_GET_STRING, HTTP_GET_STRING_LEN) )
|
672 |
{
|
673 |
string += (HTTP_GET_STRING_LEN + 1);
|
674 |
cmd = HTTP_GET;
|
675 |
}
|
676 |
else
|
677 |
{
|
678 |
return HTTP_NOT_SUPPORTED;
|
679 |
}
|
680 |
|
681 |
// Skip white spaces.
|
682 |
while( *string == ' ' )
|
683 |
string++;
|
684 |
|
685 |
c = *string;
|
686 |
|
687 |
while ( c != ' ' && c != '\0' && c != '\r' && c != '\n' )
|
688 |
|
689 |
{
|
690 |
// Do not accept any more arguments than we haved designed to.
|
691 |
if ( i >= *argc )
|
692 |
break;
|
693 |
|
694 |
switch(smParse)
|
695 |
{
|
696 |
case SM_PARSE_IDLE:
|
697 |
arg[i] = string;
|
698 |
c = *string;
|
699 |
if ( c == '/' || c == '\\' )
|
700 |
smParse = SM_PARSE_ARG;
|
701 |
break;
|
702 |
|
703 |
case SM_PARSE_ARG:
|
704 |
arg[i++] = string;
|
705 |
smParse = SM_PARSE_ARG_FORMAT;
|
706 |
/*
|
707 |
* Do not break.
|
708 |
* Parameter may be empty.
|
709 |
*/
|
710 |
|
711 |
case SM_PARSE_ARG_FORMAT:
|
712 |
c = *string;
|
713 |
if ( c == '?' || c == '&' )
|
714 |
{
|
715 |
*string = '\0';
|
716 |
smParse = SM_PARSE_ARG;
|
717 |
}
|
718 |
else
|
719 |
{
|
720 |
// Recover space characters.
|
721 |
if ( c == '+' )
|
722 |
*string = ' ';
|
723 |
|
724 |
// Remember where file extension starts.
|
725 |
else if ( c == '.' && i == 1 )
|
726 |
{
|
727 |
ext = ++string;
|
728 |
}
|
729 |
|
730 |
else if ( c == '=' )
|
731 |
{
|
732 |
*string = '\0';
|
733 |
smParse = SM_PARSE_ARG;
|
734 |
}
|
735 |
|
736 |
// Only interested in file name - not a path.
|
737 |
else if ( c == '/' || c == '\\' )
|
738 |
arg[i-1] = string+1;
|
739 |
|
740 |
}
|
741 |
break;
|
742 |
}
|
743 |
string++;
|
744 |
c = *string;
|
745 |
}
|
746 |
*string = '\0';
|
747 |
|
748 |
*type = HTTP_UNKNOWN;
|
749 |
if ( ext != NULL )
|
750 |
{
|
751 |
ext = (BYTE*)strupr((char*)ext);
|
752 |
|
753 |
fileType = httpFiles[0].fileExt;
|
754 |
for ( c = 0; c < TOTAL_FILE_TYPES; c++ )
|
755 |
{
|
756 |
if ( !memcmppgm2ram((void*)ext, (ROM void*)fileType, FILE_EXT_LEN) )
|
757 |
{
|
758 |
*type = c;
|
759 |
break;
|
760 |
}
|
761 |
fileType += sizeof(FILE_TYPES);
|
762 |
|
763 |
}
|
764 |
}
|
765 |
|
766 |
if ( i == 0 )
|
767 |
{
|
768 |
memcpypgm2ram(arg[0], (ROM void*)HTTP_DEFAULT_FILE_STRING,
|
769 |
HTTP_DEFAULT_FILE_STRING_LEN);
|
770 |
arg[0][HTTP_DEFAULT_FILE_STRING_LEN] = '\0';
|
771 |
*type = HTTP_HTML;
|
772 |
i++;
|
773 |
}
|
774 |
*argc = i;
|
775 |
|
776 |
return cmd;
|
777 |
}
|
778 |
|
779 |
|
780 |
|
781 |
|
782 |
|