VC使用libcurl模拟登录CSDN并自动评论资源以获取积分-阿里云开发者社区

CURLcode curl_global_init(long flags)
描述：这个函数只能用一次。(其实在调用curl_global_cleanup 函数后仍然可再用)
如果这个函数在curl_easy_init函数调用时还没调用，它将由libcurl库自动完成。
参数：flags
CURL_GLOBAL_ALL //初始化所有的可能的调用。
CURL_GLOBAL_SSL //初始化支持安全套接字层。
CURL_GLOBAL_WIN32 //初始化win32套接字库。
CURL_GLOBAL_NOTHING //没有额外的初始化。

void curl_global_cleanup(void);
描述：在结束libcurl使用的时候，用来对curl_global_init做的工作清理。类似于close的函数。

char *curl_version( );

描述: 打印当前libcurl库的版本

CURL * curl_easy_init( );

描述:curl_easy_init用来初始化一个CURL的指针(有些像返回FILE类型的指针一样). 相应的在调用结束时要用curl_easy_cleanup函数清理.
一般curl_easy_init意味着一个会话的开始. 它的返回值一般都用在easy系列的函数中

void curl_easy_cleanup(CURL *handle);

描述:这个调用用来结束一个会话.与curl_easy_init配合着用.
参数:CURL类型的指针.

CURLcode curl_easy_setopt(CURL *handle, CURLoption option, parameter);
描述: 这个函数最重要了.几乎所有的curl 程序都要频繁的使用它.
它告诉curl库.程序将有如何的行为. 比如要查看一个网页的html代码等.
(这个函数有些像ioctl函数)
参数:
1 CURL类型的指针
2 各种CURLoption类型的选项.(都在curl.h库里有定义,man 也可以查看到)
3 parameter 这个参数既可以是个函数的指针,也可以是某个对象的指针,也可以是个long型的变量.它用什么这取决于第二个参数.
CURLoption 这个参数的取值很多.具体的可以查看man手册.

CURLcode curl_easy_perform(CURL *handle);

描述:这个函数在初始化CURL类型的指针以及curl_easy_setopt完成后调用. 就像字面的意思所说perform就像是个舞台.让我们设置的
option 运作起来.
参数:
CURL类型的指针

如何操作cookie

通过curl_easy_setopt函数的第二个参数，就可以很容易的操作cookie

保存cookie信息到本地的cookie.txt文件

curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookie.txt");

读取本地的cookie.txt文件中的cookie信息

 
          curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE, 
          "cookie.txt"
          );

模拟登录csdn

ReturnInfo CCSDNDlg::LoginServer(CString strUser,CString strPass)
{
    ReturnInfo returnInfo;
    returnInfo.bReturn = FALSE;

    CURL *curl;
    CURLcode res;
    struct curl_slist *headers = NULL;
    curl_global_init(CURL_GLOBAL_ALL);
    curl = curl_easy_init();
    if(curl){
        //初始化cookie引擎
        curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "");
        curl_easy_setopt(curl,CURLOPT_FOLLOWLOCATION, 1L);

        //http请求头
        headers = curl_slist_append(headers,"User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0");    //模拟浏览器
        headers = curl_slist_append(headers,"Host:passport.csdn.net");
        headers = curl_slist_append(headers,"Accept:*/*");
        headers = curl_slist_append(headers,"Accept-Language:zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3");
        headers = curl_slist_append(headers,"Accept-Encoding:gzip, deflate");
        headers = curl_slist_append(headers,"X-Requested-With:XMLHttpRequest");
        headers = curl_slist_append(headers,"Referer:https://passport.csdn.net/account/loginbox?callback=logined&hidethird=1&from=http%3a%2f%2fwww.csdn.net%2f");
        headers = curl_slist_append(headers,"Connection:keep-alive");
        
        curl_easy_setopt(curl, CURLOPT_COOKIEJAR, "cookie.txt");        //把服务器发过来的cookie保存到cookie.txt

        //发送http请求头
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        char url[256];
        sprintf(url,"http://passport.csdn.net/ajax/accounthandler.ashx?t=log&u=%s&p=%s&remember=0&f=http%3A%2F%2Fwww.csdn.net%2F&rand=0.47590136872096434",strUser,strPass);
        curl_easy_setopt(curl, CURLOPT_URL,url);

        string content;
        //设置回调函数
        res = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writer);
        res = curl_easy_setopt(curl, CURLOPT_WRITEDATA, &content);

        //执行http请求
        res = curl_easy_perform(curl);

        string returnVal;
        Utf8ToMb((char*)content.c_str(),content.length(),returnVal);
        int pos = returnVal.find("\"status\":true");
        if ( pos >= 0){
            returnInfo.bReturn = TRUE;
            int nStartPos = content.find("data\":");
            int nEndPos      = content.rfind("\"}}");
            returnInfo.data = content.substr(nStartPos+6,nEndPos - nStartPos-4);
        }else{
            int nStartPos = returnVal.find("error\":");
            int nEndPos      = returnVal.find("data\":",nStartPos);
            returnInfo.strErrorInfo = returnVal.substr(nStartPos+8,nEndPos-nStartPos-11);
        }
        //释放资源
        curl_easy_cleanup(curl);
        curl_slist_free_all(headers);
        headers = NULL;
    }
    curl_global_cleanup();
    return returnInfo;
}

根据给定的网址获取网页源码

static string GetHtmlPage(string url)
{
    CURL *easy_handle;
    CURLcode res;
    string content;
    curl_global_init(CURL_GLOBAL_ALL);
    easy_handle = curl_easy_init();
    if( easy_handle )
    {
        //初始化cookie引擎
        curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE,"");
        curl_easy_setopt(easy_handle,CURLOPT_TIMEOUT,5);            //设置请求超时时间
        //curl_easy_setopt(easy_handle,CURLOPT_VERBOSE,1);            //输出请求头和响应头
        //curl_easy_setopt(easy_handle,CURLOPT_HEADER,1);
        curl_easy_setopt(easy_handle,CURLOPT_FOLLOWLOCATION, 1L);

        //http请求头
        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers,"Host: download.csdn.net");
        headers = curl_slist_append(headers,"User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0");
        headers = curl_slist_append(headers,"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        headers = curl_slist_append(headers,"Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3");        
        headers = curl_slist_append(headers,"Referer: http://www.csdn.net/");
        headers = curl_slist_append(headers,"Connection: keep-alive");
        curl_easy_setopt(easy_handle, CURLOPT_HTTPHEADER, headers);

        curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE, "cookie.txt");        //读取本地存储的cookie

        if(!InitCurl(easy_handle,res,url,content))
        {
            //释放资源
            curl_slist_free_all(headers);
            curl_easy_cleanup(easy_handle);
            return NULL;
        }
        //释放资源
        curl_slist_free_all(headers);
        curl_easy_cleanup(easy_handle);
    }
    curl_global_cleanup();
    string tt;
    Utf8ToMb((char *)content.c_str(),content.length(),tt);
    return tt;
}

获取下载资源总页数

static int GetTotalPageNum()
{
    string url = "http://download.csdn.net/my/downloads/1";

    string html = GetHtmlPage(url);
    int nPos = html.rfind("尾页");
    if (nPos == -1)
        return -1;
    nPos -= 2;
    int nStartPos = html.rfind("/",nPos);
    string strTotal = html.substr(nStartPos+1,nPos - nStartPos - 1);
    return atoi(strTotal.c_str());
}

获取待评论的资源列表

static vector<DownResourceInfo> GetToCommentList(int pageNum)
{
    vector<DownResourceInfo> vtDownload;
    char url[128] = {0};
    sprintf(url,"http://download.csdn.net/my/downloads/%d",pageNum);
    string html = GetHtmlPage(url);
    int nPos = 0;
    int n = 0;
    int flag = 1;
    while((nPos = html.find("#comment",n)) != -1)
    {
        n = nPos+1;
        int nStartPos = html.rfind("/",nPos);
        string strUrl = html.substr(nStartPos+1,nPos - nStartPos -1);
        DownResourceInfo info;
        info.strResourceCurl = strUrl;
        //获取资源的名字
        nStartPos = html.find(strUrl,nPos+1);
        if(nStartPos == -1)
            return vtDownload;
        nStartPos += 2;
        nStartPos += strUrl.length();
        int nEndPos = html.find("</a>",nStartPos);
        string ResourceName = html.substr(nStartPos,nEndPos - nStartPos);
        info.strResourceName = ResourceName;        
        vtDownload.push_back(info);
    }
    return vtDownload;
}

发表评论

static BOOL AddComment(string sourceId)
{
    CURL *easy_handle;
    CURLcode res;
    string content;
    curl_global_init(CURL_GLOBAL_ALL);
    easy_handle = curl_easy_init();
    if( easy_handle )
    {
        //初始化cookie引擎
        curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE,"");        
        curl_easy_setopt(easy_handle,CURLOPT_FOLLOWLOCATION, 1L);        
        string url = "http://download.csdn.net/index.php/comment/post_comment?jsonpcallback=jsonp1385304626524&sourceid="+sourceId+"&content=%E9%9D%9E%E5%B8%B8%E6%84%9F%E8%B0%A2%EF%BC%8C%E8%BF%99%E8%B5%84%E6%BA%90%E6%88%91%E6%89%BE%E4%BA%86%E5%A5%BD%E4%B9%85%E4%BA%86%EF%BC%81&rating=5&t=1385304679900";
        string referer = "Referer: http://download.csdn.net/detail/wasdzxce/"+sourceId;
        //http请求头
        struct curl_slist *headers = NULL;        
        headers = curl_slist_append(headers,"Host: download.csdn.net");
        headers = curl_slist_append(headers,"User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0");
        headers = curl_slist_append(headers,"Accept: text/javascript, application/javascript, */*");
        headers = curl_slist_append(headers,"Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3");
        headers = curl_slist_append(headers,"Accept-Encoding: gzip, deflate");
        headers = curl_slist_append(headers,"Content-Type: application/x-www-form-urlencoded");
        headers = curl_slist_append(headers,"X-Requested-With: XMLHttpRequest");
        headers = curl_slist_append(headers,referer.c_str());
        headers = curl_slist_append(headers,"Connection: keep-alive");
        curl_easy_setopt(easy_handle, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(easy_handle, CURLOPT_COOKIEFILE, "cookie.txt");        //读取本地存储的cookie 

        if(!InitCurl(easy_handle,res,url,content))
        {
            //释放资源
            curl_slist_free_all(headers);
            curl_easy_cleanup(easy_handle);
            curl_global_cleanup();
            return FALSE;
        }
        //释放资源
        curl_slist_free_all(headers);
        curl_easy_cleanup(easy_handle);
    }
    curl_global_cleanup();
    int pos = content.find("\"succ\":1");
    if (pos>=0)
        return TRUE;
    else
        return FALSE;
}

VC使用libcurl模拟登录CSDN并自动评论资源以获取积分

软件运行结果

libcurl中的所有函数

如何操作cookie

模拟登录csdn

根据给定的网址获取网页源码

获取下载资源总页数

获取待评论的资源列表

发表评论

热门文章

最新文章

相关电子书

热门

活动广场

任务中心

开发者评测

高校计划

乘风者计划

训练营

阿里云MVP

话题

直播

下载

镜像站

技术资料

插件

VC使用libcurl模拟登录CSDN并自动评论资源以获取积分

软件运行结果

libcurl中的所有函数

如何操作cookie

模拟登录csdn

根据给定的网址获取网页源码

获取下载资源总页数

获取待评论的资源列表

发表评论

热门文章

最新文章

相关电子书