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QNetworkAccessManager to a HTTPS troubles

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  • JKSHJ JKSH

    Hi @reonZ, no apology required :)

    @reonZ said in QNetworkAccessManager to a HTTPS troubles:

    i just installed OpenSSL 1.1.0j

    Good.

    and added INCLUDEPATH += C:/OpenSSL-Win64/include in my .pro, but now what ? i have no idea how i am supposed to use it.

    I meant your PATH environment variable, not your project INCLUDEPATH. See https://helpdeskgeek.com/windows-10/add-windows-path-environment-variable/ and add the folder that contains the OpenSSL DLLs (not the include folder).

    You don't need to do anything else. Just run your Qt program. It will search for the OpenSSL DLL in your PATH and load it automatically.

    Anyway, I notice that you've installed 64-bit OpenSSL, which will only work with 64-bit apps. Are you using 64-bit Qt or 32-bit Qt?

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    reonZ
    wrote on last edited by
    #9

    @JKSH I did put it in my windows PATH, tried both the C:\OpenSSL-Win32\bin and C:\OpenSSL-Win64\bin version just in case and i still have the same error (i restarted Qt each time).

    JKSHJ 1 Reply Last reply
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    • R reonZ

      @JKSH I did put it in my windows PATH, tried both the C:\OpenSSL-Win32\bin and C:\OpenSSL-Win64\bin version just in case and i still have the same error (i restarted Qt each time).

      JKSHJ Offline
      JKSHJ Offline
      JKSH
      Moderators
      wrote on last edited by
      #10

      @reonZ said in QNetworkAccessManager to a HTTPS troubles:

      I did put it in my windows PATH, tried both the C:\OpenSSL-Win32\bin and C:\OpenSSL-Win64\bin version just in case and i still have the same error

      1. Are you using 32-bit or 64-bit Qt?
      2. Where did you download OpenSSL from?
      3. What does QSslSocket::sslLibraryBuildVersionString() return?
      4. What does QSslSocket::sslLibraryVersionString() return?

      (i restarted Qt each time).

      I'm not 100% sure, but you'll also need to make sure that Windows has recorded the changes. Did you close all the Windows dialogs after changing the settings?

      Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

      R 1 Reply Last reply
      1
      • R reonZ

        I am trying to connect to a secure website and am having trouble understanding the steps to get there, i think i am supposed to use QSslSocket, which i try to do, but then i get this error when i use QSslSocket::connectToHostEncrypted:

        qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed

        What am i missing ?

        kshegunovK Offline
        kshegunovK Offline
        kshegunov
        Moderators
        wrote on last edited by
        #11

        Relevant bugreports:
        https://bugreports.qt.io/browse/QTBUG-72015
        https://bugreports.qt.io/browse/QTBUG-72016

        Basically you can get that if you have misconfigured the socket - no private key, or local certificate. The error is nondescriptive, so you need to make sure (if you use any of those two) that both exist and are valid, and you do that manually. Could you provide the snippet you use to connect to said server?

        Read and abide by the Qt Code of Conduct

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        • JKSHJ JKSH

          @reonZ said in QNetworkAccessManager to a HTTPS troubles:

          I did put it in my windows PATH, tried both the C:\OpenSSL-Win32\bin and C:\OpenSSL-Win64\bin version just in case and i still have the same error

          1. Are you using 32-bit or 64-bit Qt?
          2. Where did you download OpenSSL from?
          3. What does QSslSocket::sslLibraryBuildVersionString() return?
          4. What does QSslSocket::sslLibraryVersionString() return?

          (i restarted Qt each time).

          I'm not 100% sure, but you'll also need to make sure that Windows has recorded the changes. Did you close all the Windows dialogs after changing the settings?

          R Offline
          R Offline
          reonZ
          wrote on last edited by
          #12

          @JKSH

          1/ In Qt creator it says Based on Qt 5.12.0 (MVSC 2015, 32 bit)
          2/ From here http://slproweb.com/products/Win32OpenSSL.html
          3/ QSslSocket::sslLibraryBuildVersionString() returns OpenSSL 1.0.2p 14 Aug 2018
          4/ QSslSocket::sslLibraryVersionString() returns empty

          And yes, i made sure to close all the dialog windows before restarting Qt.

          JKSHJ 1 Reply Last reply
          0
          • kshegunovK kshegunov

            Relevant bugreports:
            https://bugreports.qt.io/browse/QTBUG-72015
            https://bugreports.qt.io/browse/QTBUG-72016

            Basically you can get that if you have misconfigured the socket - no private key, or local certificate. The error is nondescriptive, so you need to make sure (if you use any of those two) that both exist and are valid, and you do that manually. Could you provide the snippet you use to connect to said server?

            R Offline
            R Offline
            reonZ
            wrote on last edited by
            #13

            @kshegunov My test code is pretty bare right now, i just wanted to see how it worked first, it is just a simple QNetworkAccessManager::get on https://www.google.com.

            kshegunovK 1 Reply Last reply
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            • R reonZ

              @kshegunov My test code is pretty bare right now, i just wanted to see how it worked first, it is just a simple QNetworkAccessManager::get on https://www.google.com.

              kshegunovK Offline
              kshegunovK Offline
              kshegunov
              Moderators
              wrote on last edited by
              #14

              It works yes, if it's configured properly. However: QSslSocket::sslLibraryVersionString() shouldn't return empty. I'd guess Qt can't find to load your openssl library.

              Read and abide by the Qt Code of Conduct

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #15

                Hi,

                Following item 3, Qt was built using OpenSSL 1.0.2 so you have to download the most recent version of the 1.0 series of OpenSSL. You can't use 1.1 in this case because they broke API and ABI compatibility.

                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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                3
                • SGaistS SGaist

                  Hi,

                  Following item 3, Qt was built using OpenSSL 1.0.2 so you have to download the most recent version of the 1.0 series of OpenSSL. You can't use 1.1 in this case because they broke API and ABI compatibility.

                  R Offline
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                  reonZ
                  wrote on last edited by reonZ
                  #16

                  @SGaist Installed 1.0.2q and still the same, QSslSocket::sslLibraryVersionString() returns empty. I am loosing hope :(

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #17

                    Go to the Run part of the Project panel and modify the PATH environment variable there to also contain the path to your 1.0 version of OpenSSL dlls.

                    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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                    • SGaistS SGaist

                      Go to the Run part of the Project panel and modify the PATH environment variable there to also contain the path to your 1.0 version of OpenSSL dlls.

                      R Offline
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                      reonZ
                      wrote on last edited by
                      #18

                      @SGaist Sadly it is already there, even twice for some reason.

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                      0
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #19

                        Then I would ensure that this folder is the first to appear in the list and also that there are no other versions of OpenSSL on the system, for example in the Windows specific folders.

                        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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                        • SGaistS SGaist

                          Then I would ensure that this folder is the first to appear in the list and also that there are no other versions of OpenSSL on the system, for example in the Windows specific folders.

                          R Offline
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                          reonZ
                          wrote on last edited by
                          #20

                          @SGaist Alright it is working now, i indeed needed to install the 64bit version and not the 32 bit:

                          QSslSocket::sslLibraryBuildVersionString()   "OpenSSL 1.0.2p  14 Aug 2018"
                          QSslSocket::sslLibraryVersionString()        "OpenSSL 1.0.2q  20 Nov 2018"
                          

                          I also received the result from QNetworkAccessManager::get

                          Thanks a lot for all the help, you guys are awesome.

                          Edit: i still always have this in the output console though QNetworkReplyHttpImplPrivate::_q_startOperation was called more than once but it is not related to this because i had it on non secure get too.

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #21

                            The message will be gone in 5.12.2. See QTBUG-72463

                            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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                            2
                            • R reonZ

                              @JKSH

                              1/ In Qt creator it says Based on Qt 5.12.0 (MVSC 2015, 32 bit)
                              2/ From here http://slproweb.com/products/Win32OpenSSL.html
                              3/ QSslSocket::sslLibraryBuildVersionString() returns OpenSSL 1.0.2p 14 Aug 2018
                              4/ QSslSocket::sslLibraryVersionString() returns empty

                              And yes, i made sure to close all the dialog windows before restarting Qt.

                              JKSHJ Offline
                              JKSHJ Offline
                              JKSH
                              Moderators
                              wrote on last edited by
                              #22

                              I'm glad to hear that it's working for you now!

                              @reonZ said in QNetworkAccessManager to a HTTPS troubles:

                              3/ QSslSocket::sslLibraryBuildVersionString() returns OpenSSL 1.0.2p 14 Aug 2018

                              Apologies, I gave you wrong information earlier. This result shows that Qt was built against OpenSSL 1.0.2, not 1.1.0.

                              Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

                              1 Reply Last reply
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