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#include <fstream>
#include "CommonTools.h"
using namespace std;
std::string string_To_UTF8(const std::string& str)
{
int nwLen = ::MultiByteToWideChar(CP_ACP, 0, str.c_str(), -1, NULL, 0);
wchar_t* pwBuf = new wchar_t[nwLen + 1];//一定要加1，不然会出现尾巴
ZeroMemory(pwBuf, nwLen * 2 + 2);
::MultiByteToWideChar(CP_ACP, 0, str.c_str(), str.length(), pwBuf, nwLen);
int nLen = ::WideCharToMultiByte(CP_UTF8, 0, pwBuf, -1, NULL, NULL, NULL, NULL);
char* pBuf = new char[nLen + 1];
ZeroMemory(pBuf, nLen + 1);
::WideCharToMultiByte(CP_UTF8, 0, pwBuf, nwLen, pBuf, nLen, NULL, NULL);
std::string retStr(pBuf);
delete[]pwBuf;
delete[]pBuf;
pwBuf = NULL;
pBuf = NULL;
return retStr;
}
int write_data(void* buffer, int size, int nmemb, void* userp) {
std::string* str = dynamic_cast<std::string*>((std::string*)userp);
str->append((char*)buffer, size * nmemb);
return nmemb;
}
size_t CommonTools::receive_data(void* contents, size_t size, size_t nmemb, void* stream) {
string* str = (string*)stream;
(*str).append((char*)contents, size * nmemb);
return size * nmemb;
}
size_t CommonTools::writedata2file(void* ptr, size_t size, size_t nmemb, FILE* stream) {
size_t written = fwrite(ptr, size, nmemb, stream);
return written;
}
int CommonTools::upload_file(const char* url, const char* fileName, string& response) {
CURL* curl;
CURLcode ret;
curl = curl_easy_init();
struct curl_httppost* post = NULL;
struct curl_httppost* last = NULL;
if (curl)
{
curl_easy_setopt(curl, CURLOPT_URL, url); //指定url
curl_formadd(&post, &last, CURLFORM_PTRNAME, "path", CURLFORM_PTRCONTENTS, "device_cover", CURLFORM_END);//form-data key(path) 和 value(device_cover)
curl_formadd(&post, &last, CURLFORM_PTRNAME, "file", CURLFORM_FILE, fileName, CURLFORM_FILENAME, "hello.jpg", CURLFORM_END);// form-data key(file) "./test.jpg"为文件路径 "hello.jpg" 为文件上传时文件名
curl_easy_setopt(curl, CURLOPT_HTTPPOST, post); //构造post参数
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 3);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data); //绑定相应
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&response); //绑定响应内容的地址
ret = curl_easy_perform(curl); //执行请求
if (ret == 0) {
curl_easy_cleanup(curl);
return 0;
}
else {
return ret;
}
}
else {
return -1;
}
//std::string contents;
//std::ifstream in(fileName, std::ios::in | std::ios::binary);
//if (in)
//{
// in.seekg(0, std::ios::end);
// contents.resize(in.tellg());
// in.seekg(0, std::ios::beg);
// in.read(&contents[0], contents.size());
// in.close();
//}
//CURL* curl;
//CURLcode res;
//struct curl_httppost* formpost = NULL;
//struct curl_httppost* lastptr = NULL;
//struct curl_slist* headerlist = NULL;
//static const char buf[] = "Expect:";
//curl_global_init(CURL_GLOBAL_ALL);
//// set up the header
//curl_formadd(&formpost,
// &lastptr,
// CURLFORM_COPYNAME, "cache-control:",
// CURLFORM_COPYCONTENTS, "no-cache",
// CURLFORM_END);
//curl_formadd(&formpost,
// &lastptr,
// CURLFORM_COPYNAME, "content-type:",
// CURLFORM_COPYCONTENTS, "multipart/form-data",
// CURLFORM_END);
//curl_formadd(&formpost, &lastptr,
// CURLFORM_COPYNAME, "file", // <--- the (in this case) wanted file-Tag!
// CURLFORM_BUFFER, fileName,
// CURLFORM_BUFFERPTR, contents.data(),
// CURLFORM_BUFFERLENGTH, contents.size(),
// CURLFORM_END);
//curl = curl_easy_init();
//headerlist = curl_slist_append(headerlist, buf);
//if (curl) {
// curl_easy_setopt(curl, CURLOPT_URL, url);
// curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
// curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
// curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&response);
// //curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
// res = curl_easy_perform(curl);
// /* Check for errors */
// if (res != CURLE_OK)
// fprintf(stderr, "curl_easy_perform() failed: %s\n",
// curl_easy_strerror(res));
// curl_easy_cleanup(curl);
// curl_formfree(formpost);
// curl_slist_free_all(headerlist);
//}
//return 0;
}
int CommonTools::download_file(const char* url, const char outfilename[FILENAME_MAX]) {
CURL* curl;
FILE* fp;
CURLcode res;
/* 调用curl_global_init()初始化libcurl */
res = curl_global_init(CURL_GLOBAL_ALL);
if (CURLE_OK != res)
{
printf("init libcurl failed.");
curl_global_cleanup();
return -1;
}
/* 调用curl_easy_init()函数得到 easy interface型指针 */
curl = curl_easy_init();
if (curl) {
fp = fopen(outfilename, "wb");
/* 调用curl_easy_setopt()设置传输选项 */
res = curl_easy_setopt(curl, CURLOPT_URL, url);
if (res != CURLE_OK)
{
fclose(fp);
curl_easy_cleanup(curl);
return -1;
}
/* 根据curl_easy_setopt()设置的传输选项，实现回调函数以完成用户特定任务 */
res = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, CommonTools::writedata2file);
if (res != CURLE_OK) {
fclose(fp);
curl_easy_cleanup(curl);
return -1;
}
/* 根据curl_easy_setopt()设置的传输选项，实现回调函数以完成用户特定任务 */
res = curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
if (res != CURLE_OK)
{
fclose(fp);
curl_easy_cleanup(curl);
return -1;
}
res = curl_easy_perform(curl);
// 调用curl_easy_perform()函数完成传输任务
fclose(fp);
/* Check for errors */
if (res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
curl_easy_cleanup(curl);
return -1;
}
/* always cleanup */
curl_easy_cleanup(curl);
// 调用curl_easy_cleanup()释放内存
}
curl_global_cleanup();
return 0;
}
CURLcode CommonTools::HttpGet(const std::string& strUrl, std::string& strResponse, int nTimeout) {
CURLcode res;
CURL* pCURL = curl_easy_init();
if (pCURL == NULL) {
return CURLE_FAILED_INIT;
}
curl_easy_setopt(pCURL, CURLOPT_URL, strUrl.c_str());
//curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(pCURL, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt(pCURL, CURLOPT_TIMEOUT, nTimeout);
curl_easy_setopt(pCURL, CURLOPT_NOPROGRESS, 1L);
curl_easy_setopt(pCURL, CURLOPT_WRITEFUNCTION, CommonTools::receive_data);
curl_easy_setopt(pCURL, CURLOPT_WRITEDATA, (void*)&strResponse);
res = curl_easy_perform(pCURL);
curl_easy_cleanup(pCURL);
return res;
}
CURLcode CommonTools::HttpPost(const std::string& strUrl, std::string szJson, std::string& strResponse, int nTimeout) {
CURLcode res;
char szJsonData[1024];
memset(szJsonData, 0, sizeof(szJsonData));
strcpy(szJsonData, szJson.c_str());
CURL* pCURL = curl_easy_init();
struct curl_slist* headers = NULL;
if (pCURL == NULL) {
return CURLE_FAILED_INIT;
}
CURLcode ret;
ret = curl_easy_setopt(pCURL, CURLOPT_URL, strUrl.c_str());
// std::cout << ret << std::endl;
ret = curl_easy_setopt(pCURL, CURLOPT_POST, 1L);
headers = curl_slist_append(headers, "content-type:application/json");
ret = curl_easy_setopt(pCURL, CURLOPT_HTTPHEADER, headers);
ret = curl_easy_setopt(pCURL, CURLOPT_POSTFIELDS, szJsonData);
//curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
ret = curl_easy_setopt(pCURL, CURLOPT_TIMEOUT, nTimeout);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEFUNCTION, CommonTools::receive_data);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEDATA, (void*)&strResponse);
res = curl_easy_perform(pCURL);
curl_easy_cleanup(pCURL);
return res;
}
CURLcode CommonTools::HttpPut(const std::string& strUrl, std::string szJson, std::string& strResponse, int nTimeout) {
CURLcode res;
char szJsonData[1024];
memset(szJsonData, 0, sizeof(szJsonData));
strcpy(szJsonData, szJson.c_str());
CURL* pCURL = curl_easy_init();
struct curl_slist* headers = NULL;
if (pCURL == NULL) {
return CURLE_FAILED_INIT;
}
CURLcode ret;
ret = curl_easy_setopt(pCURL, CURLOPT_URL, strUrl.c_str());
// std::cout << ret << std::endl;
ret = curl_easy_setopt(pCURL, CURLOPT_CUSTOMREQUEST, "PUT");
headers = curl_slist_append(headers, "content-type:application/json");
ret = curl_easy_setopt(pCURL, CURLOPT_HTTPHEADER, headers);
ret = curl_easy_setopt(pCURL, CURLOPT_POSTFIELDS, szJsonData);
//curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
ret = curl_easy_setopt(pCURL, CURLOPT_TIMEOUT, nTimeout);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEFUNCTION, CommonTools::receive_data);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEDATA, (void*)&strResponse);
res = curl_easy_perform(pCURL);
curl_easy_cleanup(pCURL);
return res;
}
CURLcode CommonTools::HttpDelete(const std::string& strUrl, std::string& strResponse, int nTimeout) {
CURLcode res;
CURL* pCURL = curl_easy_init();
struct curl_slist* headers = NULL;
if (pCURL == NULL) {
return CURLE_FAILED_INIT;
}
CURLcode ret;
ret = curl_easy_setopt(pCURL, CURLOPT_URL, strUrl.c_str());
// std::cout << ret << std::endl;
ret = curl_easy_setopt(pCURL, CURLOPT_CUSTOMREQUEST, "DELETE");
headers = curl_slist_append(headers, "content-type:application/json");
ret = curl_easy_setopt(pCURL, CURLOPT_HTTPHEADER, headers);
//curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
ret = curl_easy_setopt(pCURL, CURLOPT_TIMEOUT, nTimeout);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEFUNCTION, CommonTools::receive_data);
ret = curl_easy_setopt(pCURL, CURLOPT_WRITEDATA, (void*)&strResponse);
res = curl_easy_perform(pCURL);
curl_easy_cleanup(pCURL);
return res;
}