// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ /* ###################################################################### Proxy - Proxy releated functions ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include<apt-pkg/configuration.h> #include<apt-pkg/error.h> #include<apt-pkg/fileutl.h> #include<apt-pkg/strutl.h> #include<iostream> #include <unistd.h> #include "proxy.h" /*}}}*/ // AutoDetectProxy - auto detect proxy /*{{{*/ // --------------------------------------------------------------------- /* */ bool AutoDetectProxy(URI &URL) { // we support both http/https debug options bool Debug = _config->FindB("Debug::Acquire::"+URL.Access,false); // the user already explicitly set a proxy for this host if(_config->Find("Acquire::"+URL.Access+"::proxy::"+URL.Host, "") != "") return true; // option is "Acquire::http::Proxy-Auto-Detect" but we allow the old // name without the dash ("-") std::string AutoDetectProxyCmd = _config->Find("Acquire::"+URL.Access+"::Proxy-Auto-Detect", _config->Find("Acquire::"+URL.Access+"::ProxyAutoDetect")); if (AutoDetectProxyCmd.empty()) return true; if (Debug) std::clog << "Using auto proxy detect command: " << AutoDetectProxyCmd << std::endl; std::string const urlstring = URL; std::vector<const char *> Args; Args.push_back(AutoDetectProxyCmd.c_str()); Args.push_back(urlstring.c_str()); Args.push_back(nullptr); FileFd PipeFd; pid_t Child; if(Popen(&Args[0], PipeFd, Child, FileFd::ReadOnly) == false) return _error->Error("ProxyAutoDetect command '%s' failed!", AutoDetectProxyCmd.c_str()); char buf[512]; bool const goodread = PipeFd.ReadLine(buf, sizeof(buf)) != nullptr; PipeFd.Close(); if (ExecWait(Child, "ProxyAutoDetect") == false) return false; // no output means the detector has no idea which proxy to use // and apt will use the generic proxy settings if (goodread == false) return true; auto const cleanedbuf = _strstrip(buf); // We warn about this as the implementor probably meant to use DIRECT instead if (cleanedbuf[0] == '\0') { _error->Warning("ProxyAutoDetect command returned an empty line"); return true; } if (Debug) std::clog << "auto detect command returned: '" << cleanedbuf << "'" << std::endl; if (strstr(cleanedbuf, URL.Access.c_str()) == cleanedbuf || strcmp(cleanedbuf, "DIRECT") == 0) _config->Set("Acquire::"+URL.Access+"::proxy::"+URL.Host, cleanedbuf); return true; } /*}}}*/