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  4. How can i get ftp files show on my list widget using QNetworkAccessManager Qt 5.8?
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How can i get ftp files show on my list widget using QNetworkAccessManager Qt 5.8?

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  • W walter-j

    But in the book they used commandFinished(int, bool) signal.

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #28

    @walter-j I did not say you should not use commandFinished, just add another slot to see whether you get any state changes.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

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    0
    • VRoninV Offline
      VRoninV Offline
      VRonin
      wrote on last edited by
      #29

      You need an external library and I don't feel to recommend QFtp as it's not maintained anymore. libCURL is probably the standard library in the C/C++ world (and probably beyond). You can use a cpp wrapper like curlpp if you don't like the aftertaste C leaves in your mouth.

      This example (source) will download the list of files from ftp://ftp.funet.fi/ and save it in a file called ftp-list

      #include <stdio.h>
       
      #include <curl/curl.h>
       
      static size_t
      write_response(void *ptr, size_t size, size_t nmemb, void *data)
      {
        FILE *writehere = (FILE *)data;
        return fwrite(ptr, size, nmemb, writehere);
      }
       
      #define FTPBODY "ftp-list"
      #define FTPHEADERS "ftp-responses"
       
      int main(void)
      {
        CURL *curl;
        CURLcode res;
        FILE *ftpfile;
        FILE *respfile;
       
        /* local file name to store the file as */ 
        ftpfile = fopen(FTPBODY, "wb"); /* b is binary, needed on win32 */ 
       
        /* local file name to store the FTP server's response lines in */ 
        respfile = fopen(FTPHEADERS, "wb"); /* b is binary, needed on win32 */ 
       
        curl = curl_easy_init();
        if(curl) {
          /* Get a file listing from sunet */ 
          curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.funet.fi/");
          curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile);
          /* If you intend to use this on windows with a libcurl DLL, you must use
             CURLOPT_WRITEFUNCTION as well */ 
          curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_response);
          curl_easy_setopt(curl, CURLOPT_HEADERDATA, respfile);
          res = curl_easy_perform(curl);
          /* Check for errors */ 
          if(res != CURLE_OK)
            fprintf(stderr, "curl_easy_perform() failed: %s\n",
                    curl_easy_strerror(res));
       
          /* always cleanup */ 
          curl_easy_cleanup(curl);
        }
       
        fclose(ftpfile); /* close the local file */ 
        fclose(respfile); /* close the response file */ 
       
        return 0;
      }
      

      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
      ~Napoleon Bonaparte

      On a crusade to banish setIndexWidget() from the holy land of Qt

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      3
      • W Offline
        W Offline
        walter-j
        wrote on last edited by
        #30

        stateChanged solved the problem.

        Thank you guys

        JK

        Josephat Kabitshwa

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        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #31

          You're welcome !

          Since you have it working now, please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          0
          • W Offline
            W Offline
            walter-j
            wrote on last edited by
            #32

            i have searched for it . i didn't find

            Josephat Kabitshwa

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            0
            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #33

              Do you mean the "Topic Tools" button ?

              There's one just under your original post or at the bottom of the page under the last post.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              0
              • W Offline
                W Offline
                walter-j
                wrote on last edited by
                #34

                how can i clone QHttp? can i have the link for the repository?

                Josephat Kabitshwa

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                0
                • W Offline
                  W Offline
                  walter-j
                  wrote on last edited by
                  #35

                  when compiling QHttp i got this error : /home/walter-j/Documents/5.8/gcc_64/mkspecs/features/qt_module_headers.prf:153: error: Cannot write file /include/QtHttp/QtHttpDepends: Cannot create parent directory

                  can someone help me?

                  Josephat Kabitshwa

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #36

                    Where did you download it from ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    0
                    • W Offline
                      W Offline
                      walter-j
                      wrote on last edited by
                      #37

                      here : https://github.com/qt/qthttp

                      Josephat Kabitshwa

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                      0
                      • W Offline
                        W Offline
                        walter-j
                        wrote on last edited by
                        #38

                        can someone help me to download the right package of QHttp?

                        Thank your for your support

                        JK

                        Josephat Kabitshwa

                        1 Reply Last reply
                        0
                        • VRoninV Offline
                          VRoninV Offline
                          VRonin
                          wrote on last edited by
                          #39

                          The correct repository for Qt Http is http://code.qt.io/cgit/qt/qthttp.git/
                          Again, this is unmaintained code that has been abandoned, my advise is to use an external library that can do the same things (and more) see links above

                          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                          ~Napoleon Bonaparte

                          On a crusade to banish setIndexWidget() from the holy land of Qt

                          1 Reply Last reply
                          2
                          • SGaistS SGaist

                            Did you install the module ?

                            V Offline
                            V Offline
                            victor wang
                            wrote on last edited by
                            #40

                            @SGaist
                            Sorry i don't know how to install the module after i compiled the qtftp

                            D 1 Reply Last reply
                            0
                            • V victor wang

                              @SGaist
                              Sorry i don't know how to install the module after i compiled the qtftp

                              D Offline
                              D Offline
                              Devopia53
                              wrote on last edited by
                              #41

                              @victor-wang

                              Build procedure:

                              • cd QtFtp

                              • <QTDIR>/bin/syncqt.pl -version 5.5.0

                              • qmake

                              • make

                              • make install

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