projects/smsdaemon/HttpClient.cpp

#include "HttpClient.h"
#include "Exceptions.h"

#include <iomanip>
#include <sstream>
#include <curl/curl.h>

namespace HttpClient
{

        std::string UrlEncode(std::string url)
        {
                std::ostringstream ss;
                for (unsigned i=0; i<url.size(); i++)
                {
                        char ch = url.at(i);
                        if (isalnum(ch))
                                ss << ch;
                        else
                                ss << "%" << std::setw(2) << std::hex << std::setfill('0') <<(int) ch;
                }
                return ss.str();
        }


        size_t writefunction( void *ptr, size_t size, size_t nmemb, void *stream)
        {
                int total = size * nmemb;

                char* bytes = reinterpret_cast<char*>(ptr);
                std::vector<char>* vec = reinterpret_cast< std::vector<char>* >(stream);

                vec->reserve( vec->size() + total); //allow vector to do a preallocation if necessary

                int i;
                for (i=0; i<total; i++)
                {
                        vec->push_back( bytes[i] );
                }
                return i;
        }

        std::vector<char> Get(std::string url)
        {
                std::vector<char> buf;
                char errmsg[128] = "";

                CURL* curl = curl_easy_init();
                if (curl == 0)
                        throw httpexception("could not init CURL");

                curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);

                curl_easy_setopt(curl, CURLOPT_URL, url.c_str() );
                curl_easy_setopt(curl, CURLOPT_FAILONERROR,1);
                curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writefunction);
                curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);

                int res = curl_easy_perform(curl);
                curl_easy_cleanup(curl);

                if (res != 0)
                        throw httpexception(errmsg);


                return buf;
        }

        std::string GetString(std::string url)
        {
                std::vector<char> buf = Get(url);
                buf.push_back(0);
                return std::string(&buf[0]);
        }
}
1	#include "HttpClient.h"
2	#include "Exceptions.h"
3
4	#include <iomanip>
5	#include <sstream>
6	#include <curl/curl.h>
7
8	namespace HttpClient
9	{
10
11	std::string UrlEncode(std::string url)
12	{
13	std::ostringstream ss;
14	for (unsigned i=0; i<url.size(); i++)
15	{
16	char ch = url.at(i);
17	if (isalnum(ch))
18	ss << ch;
19	else
20	ss << "%" << std::setw(2) << std::hex << std::setfill('0') <<(int) ch;
21	}
22	return ss.str();
23	}
24
25
26	size_t writefunction( void ptr, size_t size, size_t nmemb, void stream)
27	{
28	int total = size * nmemb;
29
30	char* bytes = reinterpret_cast<char*>(ptr);
31	std::vector<char>* vec = reinterpret_cast< std::vector<char>* >(stream);
32
33	vec->reserve( vec->size() + total); //allow vector to do a preallocation if necessary
34
35	int i;
36	for (i=0; i<total; i++)
37	{
38	vec->push_back( bytes[i] );
39	}
40	return i;
41	}
42
43	std::vector<char> Get(std::string url)
44	{
45	std::vector<char> buf;
46	char errmsg[128] = "";
47
48	CURL* curl = curl_easy_init();
49	if (curl == 0)
50	throw httpexception("could not init CURL");
51
52	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg);
53
54	curl_easy_setopt(curl, CURLOPT_URL, url.c_str() );
55	curl_easy_setopt(curl, CURLOPT_FAILONERROR,1);
56	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writefunction);
57	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
58
59	int res = curl_easy_perform(curl);
60	curl_easy_cleanup(curl);
61
62	if (res != 0)
63	throw httpexception(errmsg);
64
65
66
67	return buf;
68	}
69
70	std::string GetString(std::string url)
71	{
72	std::vector<char> buf = Get(url);
73	buf.push_back(0);
74	return std::string(&buf[0]);
75	}
76	}