http.cpp
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/*
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* CC/LICENSE
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include <curl/curl.h>
#include "http.h"
size_t http_t::write_data(void* buffer, size_t size, size_t nmemb, void* userp) {
write_data_t* wr_data = (write_data_t*)userp;
int32_t segsize = size * nmemb;
// fix bug: wr_data->wr_index + segsize == wr_data->maxlen
// may cause get/post function: out=out_buf core
if (wr_data->wr_buf == 0 || wr_data->wr_index + segsize >= wr_data->maxlen) {
wr_data->wr_err = 1;
return 0;
}
memcpy(wr_data->wr_buf + wr_data->wr_index, buffer, (size_t)segsize);
wr_data->wr_index += segsize;
wr_data->wr_buf[wr_data->wr_index] = 0;
return segsize;
}
bool http_t::post(
const char* url,
std::string& out, int32_t timeout) {
char out_buf[MAX_BUF] = {0};
const char* post = "";
write_data_t data;
memset(&data, 0, sizeof(data));
data.wr_buf = out_buf;
data.maxlen = MAX_BUF;
long code = 0;
out_buf[0] = 0;
CURL* curl = curl_easy_init();
if (NULL == curl) {
return false;
}
int ret = curl_easy_setopt(curl, CURLOPT_URL, url);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_POST, 1);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&data);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_perform(curl);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_getinfo(curl, CURLINFO_HTTP_CODE, &code);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = data.wr_err;
if (ret != CURLE_OK) {
goto clean_up;
}
clean_up:
curl_easy_cleanup(curl);
out = out_buf;
return (CURLE_OK == ret);
}
bool http_t::get(
const char* url,
std::string& out, int32_t timeout) {
char out_buf[MAX_BUF] = {0};
write_data_t data;
memset(&data, 0, sizeof(data));
data.wr_buf = out_buf;
data.maxlen = MAX_BUF;
long code = 0;
out_buf[0] = 0;
CURL* curl = curl_easy_init();
if (NULL == curl) {
return false;
}
int ret = curl_easy_setopt(curl, CURLOPT_URL, url);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&data);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_perform(curl);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = curl_easy_getinfo(curl, CURLINFO_HTTP_CODE, &code);
if (ret != CURLE_OK) {
goto clean_up;
}
ret = data.wr_err;
if (ret != CURLE_OK) {
goto clean_up;
}
clean_up:
curl_easy_cleanup(curl);
out = out_buf;
return (CURLE_OK == ret);
}
/* vim: set expandtab ts=4 sw=4 sts=4 tw=100: */