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  1. Qt
  2. QTBUG-13957

qnetworkproxy_win.cpp - should use auto config url before using auto detect

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Details

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 4.8.x, 5.0.0
    • 4.7.0
    • Network: Proxies
    • None
    • Windows
    • fd60a3796ec4d4976965c81b7e14a538343050c4 (4.8), 4cc8209998c386a4372f10496f0c97f3d86f92bb (5.0)

    Description

      In qnetworkproxy_win.cpp, on lines 328-335, it reads:

      Unable to find source-code formatter for language: qnetworkproxy_win.cpp. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
              if (ieProxyConfig.fAutoDetect) {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT;
            autoProxyOptions.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP |
                                                 WINHTTP_AUTO_DETECT_TYPE_DNS_A;
        } else {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
            autoProxyOptions.lpszAutoConfigUrl = (LPCWSTR)autoConfigUrl.utf16();
        }

      I believe this is incorrect logic. If the system is configured with both Auto Detect AND an auto config url (i.e. PAC file), then the auto config url should take precedence over the auto detect. The current logic only works if Auto Detect is disabled and there is an auto config url specified. When Auto Detect is enabled and an auto config url is specified, the latter should be used most definitely. Most users don't uncheck the Auto Detect setting...

      Here is what the code should be changed to:

      Unable to find source-code formatter for language: qnetworkproxy_win.cpp. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
              if (ieProxyConfig.fAutoDetect && autoConfigUrl.isEmpty()) {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_AUTO_DETECT;
            autoProxyOptions.dwAutoDetectFlags = WINHTTP_AUTO_DETECT_TYPE_DHCP |
                                                 WINHTTP_AUTO_DETECT_TYPE_DNS_A;
        } else {
            autoProxyOptions.dwFlags = WINHTTP_AUTOPROXY_CONFIG_URL;
            autoProxyOptions.lpszAutoConfigUrl = (LPCWSTR)autoConfigUrl.utf16();
        }

      We're in a block of code that ensures that at least one or the other is specified. In the case that both are specified, auto detect should only be used when autoConfigUrl is empty.

      Thanks,
      Jarred

      Attachments

        Issue Links

          depends on

          Suggestion - Public suggestions QTBUG-2069 Proxy Auto Config support in QtNetwork module

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-10428 QNAM discards manual proxy server on Windows when 'Automatically detect settings' is checked (Win7 default)

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Activity

            People

              shkearns Shane Kearns
              jarrednicholls Jarred Nicholls
              Votes:
              3 Vote for this issue
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              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: