| | 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 | // the user already explicitly set a proxy for this host |
| | 30 | if(_config->Find("Acquire::"+URL.Access+"::proxy::"+URL.Host, "") != "") |
| | 31 | return true; |
| | 32 | |
| | 33 | // option is "Acquire::http::Proxy-Auto-Detect" but we allow the old |
| | 34 | // name without the dash ("-") |
| | 35 | std::string AutoDetectProxyCmd = _config->Find("Acquire::"+URL.Access+"::Proxy-Auto-Detect", |
| | 36 | _config->Find("Acquire::"+URL.Access+"::ProxyAutoDetect")); |
| | 37 | |
| | 38 | if (AutoDetectProxyCmd.empty()) |
| | 39 | return true; |
| | 40 | |
| | 41 | if (Debug) |
| | 42 | std::clog << "Using auto proxy detect command: " << AutoDetectProxyCmd << std::endl; |
| | 43 | |
| | 44 | int Pipes[2] = {-1,-1}; |
| | 45 | if (pipe(Pipes) != 0) |
| | 46 | return _error->Errno("pipe", "Failed to create Pipe"); |
| | 47 | |
| | 48 | pid_t Process = ExecFork(); |
| | 49 | if (Process == 0) |
| | 50 | { |
| | 51 | close(Pipes[0]); |
| | 52 | dup2(Pipes[1],STDOUT_FILENO); |
| | 53 | SetCloseExec(STDOUT_FILENO,false); |
| | 54 | |
| | 55 | std::string foo = URL; |
| | 56 | const char *Args[4]; |
| | 57 | Args[0] = AutoDetectProxyCmd.c_str(); |
| | 58 | Args[1] = foo.c_str(); |
| | 59 | Args[2] = 0; |
| | 60 | execv(Args[0],(char **)Args); |
| | 61 | std::cerr << "Failed to exec method " << Args[0] << std::endl; |
| | 62 | _exit(100); |
| | 63 | } |
| | 64 | char buf[512]; |
| | 65 | int InFd = Pipes[0]; |
| | 66 | close(Pipes[1]); |
| | 67 | int res = read(InFd, buf, sizeof(buf)-1); |
| | 68 | ExecWait(Process, "ProxyAutoDetect", true); |
| | 69 | |
| | 70 | if (res < 0) |
| | 71 | return _error->Errno("read", "Failed to read"); |
| | 72 | if (res == 0) |
| | 73 | return _error->Warning("ProxyAutoDetect returned no data"); |
| | 74 | |
| | 75 | // add trailing \0 |
| | 76 | buf[res] = 0; |
| | 77 | |
| | 78 | if (Debug) |
| | 79 | std::clog << "auto detect command returned: '" << buf << "'" << std::endl; |
| | 80 | |
| | 81 | if (strstr(buf, URL.Access.c_str()) == buf) |
| | 82 | _config->Set("Acquire::"+URL.Access+"::proxy::"+URL.Host, _strstrip(buf)); |
| | 83 | |
| | 84 | return true; |
| | 85 | } |
| | 86 | /*}}}*/ |
projects / apt.git / blame_incremental