过滤 Libcurl 调试消息答案

【问题标题】：Filter Libcurl Debug Message过滤 Libcurl 调试消息
【发布时间】：2013-12-26 11:13:31
【问题描述】：

是否可以过滤调试数据函数文本？我想一次显示命令，另一次显示完整输出（例如，我想过滤掉Adding handle: send: 0）。我一直收到很多消息。我想要像 Filezilla 短消息这样的好东西。

这是我的调试功能代码，下面是一条消息。我已启用详细说明

int Uploader::DebugDataCallBack(CURL* handle, curl_infotype infotype, char* msg, size_t size, void* f)
{
    int level= 1; //debug info 0-None, 1-necessary 2 - All TODO: Should come from config
    switch(level) //error level
    {
        case 0:
        {
            break; //do nothing
        }
        case 1:
        {
            //only necessary, skip headers
            if(infotype==CURLINFO_TEXT)
            {
                static_cast<Uploader*>(f)->SendMessage(wxString(msg));
            }
        }
        default:
        {
            //full debug messages
            static_cast<Uploader*>(f)->SendMessage(wxString(msg));
        }
    }

    return 0;//must return 0
}

----------Thu Dec 26 14:14:40 2013---------- 
STATE: INIT => CONNECT handle 0x7fffd0001a08; line 998 (connection #-5000) 
 [14:14:40]
STATE: INIT => CONNECT handle 0x7fffd0001a08; line 998 (connection #-5000) 
 [14:14:40]
Rebuilt URL to: ftp://ftp.mysite.com/
 [14:14:40]
Rebuilt URL to: ftp://ftp.mysite.com/
 [14:14:40]
About to connect() to ftp.mysite.com port 21 (#0)
 [14:14:40]
About to connect() to ftp.mysite.com port 21 (#0)
 [14:14:40]
  Trying 31.170.162.203...
 [14:14:40]
  Trying 31.170.162.203...
 [14:14:40]
Adding handle: conn: 0x7fffd0013b48
 [14:14:40]
Adding handle: conn: 0x7fffd0013b48
 [14:14:40]
Adding handle: send: 0
 [14:14:40]
Adding handle: send: 0
 [14:14:40]
Adding handle: recv: 0
 [14:14:40]
Adding handle: recv: 0
 [14:14:40]
Curl_addHandleToPipeline: length: 1
 [14:14:40]
Curl_addHandleToPipeline: length: 1
 [14:14:40]
0x7fffd0001a08 is at send pipe head!
 [14:14:40]
0x7fffd0001a08 is at send pipe head!
 [14:14:40]
- Conn 0 (0x7fffd0013b48) send_pipe: 1, recv_pipe: 0
 [14:14:40]
- Conn 0 (0x7fffd0013b48) send_pipe: 1, recv_pipe: 0
 [14:14:40]
STATE: CONNECT => WAITCONNECT handle 0x7fffd0001a08; line 1045 (connection #0) 
 [14:14:40]
STATE: CONNECT => WAITCONNECT handle 0x7fffd0001a08; line 1045 (connection #0) 
 [14:14:40]
Connected to ftp.mysite.com (31.170.162.203) port 21 (#0)
 [14:14:40]
Connected to ftp.mysite.com (31.170.162.203) port 21 (#0)
 [14:14:40]
FTP 0x7fffd0013fe0 (line 3174) state change from STOP to WAIT220
 [14:14:40]
FTP 0x7fffd0013fe0 (line 3174) state change from STOP to WAIT220
 [14:14:40]
STATE: WAITCONNECT => PROTOCONNECT handle 0x7fffd0001a08; line 1158 (connection #0) 
 [14:14:40]
STATE: WAITCONNECT => PROTOCONNECT handle 0x7fffd0001a08; line 1158 (connection #0) 
 [14:14:40]

【问题讨论】：

标签： c++ ftp wxwidgets libcurl

【解决方案1】：

首先通过在 curl_easy_setopt 中将verbose 设置为1L 即CURLOPT_VERBOSE 来启用curl。设置调试函数，即 CURLOPT_DEBUGFUNCTION 来接收调试消息。然后使用代码信息类型过滤掉你想要的。如果你想像我想要的那样获得命令/响应，只需从 Header 输入/输出消息。这是一段代码，只是为了展示它！

switch(infotype)
{
    case CURLINFO_HEADER_OUT:
    {
        wxString message = _("COMMAND: ")+wxString(msg);
        SendMessage(message);
        break; 
    }
    case CURLINFO_HEADER_IN:
    {
        wxString message = _("RESPONSE: ")+wxString(msg);
        SendMessage(message);
        break;
    }

}

【讨论】：