projects / apt.git / blame
| Commit | Line | Data |
|---|---|---|
| c6ee61ea MV |
1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ | |
| 3 | /* ###################################################################### | |
| 4 | ||
| 5 | Proxy - Proxy releated functions | |
| 6 | ||
| 7 | ##################################################################### */ | |
| 8 | /*}}}*/ | |
| 9 | // Include Files /*{{{*/ | |
| 10 | #include<apt-pkg/configuration.h> | |
| 11 | #include<apt-pkg/error.h> | |
| 12 | #include<apt-pkg/fileutl.h> | |
| 13 | #include<apt-pkg/strutl.h> | |
| 14 | ||
| 15 | #include<iostream> | |
| 16 | #include <unistd.h> | |
| 17 | ||
| 18 | #include "proxy.h" | |
| 19 | ||
| 20 | ||
| 21 | // AutoDetectProxy - auto detect proxy /*{{{*/ | |
| 22 | // --------------------------------------------------------------------- | |
| 23 | /* */ | |
| 24 | bool AutoDetectProxy(URI &URL) | |
| 25 | { | |
| 26 | // we support both http/https debug options | |
| 27 | bool Debug = _config->FindB("Debug::Acquire::"+URL.Access,false); | |
| 28 | ||
| 29 | // option is "Acquire::http::Proxy-Auto-Detect" but we allow the old | |
| 30 | // name without the dash ("-") | |
| 31 | std::string AutoDetectProxyCmd = _config->Find("Acquire::"+URL.Access+"::Proxy-Auto-Detect", | |
| 32 | _config->Find("Acquire::"+URL.Access+"::ProxyAutoDetect")); | |
| 33 | ||
| 34 | if (AutoDetectProxyCmd.empty()) | |
| 35 | return true; | |
| 36 | ||
| 37 | if (Debug) | |
| 38 | std::clog << "Using auto proxy detect command: " << AutoDetectProxyCmd << std::endl; | |
| 39 | ||
| 40 | int Pipes[2] = {-1,-1}; | |
| 41 | if (pipe(Pipes) != 0) | |
| 42 | return _error->Errno("pipe", "Failed to create Pipe"); | |
| 43 | ||
| 44 | pid_t Process = ExecFork(); | |
| 45 | if (Process == 0) | |
| 46 | { | |
| 47 | close(Pipes[0]); | |
| 48 | dup2(Pipes[1],STDOUT_FILENO); | |
| 49 | SetCloseExec(STDOUT_FILENO,false); | |
| 50 | ||
| 51 | std::string foo = URL; | |
| 52 | const char *Args[4]; | |
| 53 | Args[0] = AutoDetectProxyCmd.c_str(); | |
| 54 | Args[1] = foo.c_str(); | |
| 55 | Args[2] = 0; | |
| 56 | execv(Args[0],(char **)Args); | |
| 57 | std::cerr << "Failed to exec method " << Args[0] << std::endl; | |
| 58 | _exit(100); | |
| 59 | } | |
| 60 | char buf[512]; | |
| 61 | int InFd = Pipes[0]; | |
| 62 | close(Pipes[1]); | |
| 63 | int res = read(InFd, buf, sizeof(buf)-1); | |
| 64 | ExecWait(Process, "ProxyAutoDetect", true); | |
| 65 | ||
| 66 | if (res < 0) | |
| 67 | return _error->Errno("read", "Failed to read"); | |
| 68 | if (res == 0) | |
| 69 | return _error->Warning("ProxyAutoDetect returned no data"); | |
| 70 | ||
| 71 | // add trailing \0 | |
| 72 | buf[res] = 0; | |
| 73 | ||
| 74 | if (Debug) | |
| 75 | std::clog << "auto detect command returned: '" << buf << "'" << std::endl; | |
| 76 | ||
| 77 | if (strstr(buf, URL.Access.c_str()) == buf) | |
| 78 | _config->Set("Acquire::"+URL.Access+"::proxy::"+URL.Host, _strstrip(buf)); | |
| 79 | ||
| 80 | return true; | |
| 81 | } | |
| 82 | /*}}}*/ |