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#include "HttpClient.h" |
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#include "Exceptions.h" |
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#include <iomanip> |
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#include <sstream> |
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#include <curl/curl.h> |
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namespace HttpClient |
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{ |
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std::string UrlEncode(std::string url) |
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{ |
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std::ostringstream ss; |
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for (unsigned i=0; i<url.size(); i++) |
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{ |
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char ch = url.at(i); |
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if (isalnum(ch)) |
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ss << ch; |
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else |
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ss << "%" << std::setw(2) << std::hex << std::setfill('0') <<(int) ch; |
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} |
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return ss.str(); |
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} |
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size_t writefunction( void *ptr, size_t size, size_t nmemb, void *stream) |
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{ |
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int total = size * nmemb; |
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char* bytes = reinterpret_cast<char*>(ptr); |
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std::vector<char>* vec = reinterpret_cast< std::vector<char>* >(stream); |
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vec->reserve( vec->size() + total); //allow vector to do a preallocation if necessary |
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int i; |
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for (i=0; i<total; i++) |
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{ |
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vec->push_back( bytes[i] ); |
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} |
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return i; |
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} |
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std::vector<char> Get(std::string url) |
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{ |
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std::vector<char> buf; |
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char errmsg[128] = ""; |
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CURL* curl = curl_easy_init(); |
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if (curl == 0) |
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throw httpexception("could not init CURL"); |
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curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errmsg); |
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curl_easy_setopt(curl, CURLOPT_URL, url.c_str() ); |
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curl_easy_setopt(curl, CURLOPT_FAILONERROR,1); |
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writefunction); |
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf); |
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int res = curl_easy_perform(curl); |
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curl_easy_cleanup(curl); |
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if (res != 0) |
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throw httpexception(errmsg); |
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return buf; |
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} |
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std::string GetString(std::string url) |
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{ |
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std::vector<char> buf = Get(url); |
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buf.push_back(0); |
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return std::string(&buf[0]); |
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} |
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} |