cmdline/apt-helper.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* #####################################################################
   4    apt-helper - cmdline helpers
   5    ##################################################################### */
   6                                                                         /*}}}*/
   7 // Include Files                                                        /*{{{*/
   8 #include <config.h>
   9
  10 #include <apt-pkg/configuration.h>
  11 #include <apt-pkg/cmndline.h>
  12 #include <apt-pkg/error.h>
  13 #include <apt-pkg/init.h>
  14 #include <apt-pkg/strutl.h>
  15 #include <apt-pkg/pkgsystem.h>
  16 #include <apt-pkg/fileutl.h>
  17 #include <apt-pkg/acquire.h>
  18 #include <apt-pkg/acquire-item.h>
  19 #include <apt-pkg/proxy.h>
  20
  21 #include <apt-private/acqprogress.h>
  22 #include <apt-private/private-output.h>
  23 #include <apt-private/private-download.h>
  24 #include <apt-private/private-cmndline.h>
  25
  26 #include <iostream>
  27 #include <string>
  28 #include <vector>
  29
  30 #include <apti18n.h>
  31                                                                         /*}}}*/
  32
  33 static bool DoAutoDetectProxy(CommandLine &CmdL)
  34 {
  35    if (CmdL.FileSize() != 2)
  36       return _error->Error(_("Need one URL as argument"));
  37    URI ServerURL(CmdL.FileList[1]);
  38    AutoDetectProxy(ServerURL);
  39    std::string SpecificProxy = _config->Find("Acquire::"+ServerURL.Access+"::Proxy::" + ServerURL.Host);
  40    ioprintf(std::cout, "Using proxy '%s' for URL '%s'\n",
  41             SpecificProxy.c_str(), std::string(ServerURL).c_str());
  42
  43    return true;
  44 }
  45
  46 static bool DoDownloadFile(CommandLine &CmdL)
  47 {
  48    if (CmdL.FileSize() <= 2)
  49       return _error->Error(_("Must specify at least one pair url/filename"));
  50
  51    pkgAcquire Fetcher;
  52    AcqTextStatus Stat(ScreenWidth, _config->FindI("quiet",0));
  53    Fetcher.Setup(&Stat);
  54
  55    size_t fileind = 0;
  56    std::vector<std::string> targetfiles;
  57    while (fileind + 2 <= CmdL.FileSize())
  58    {
  59       std::string download_uri = CmdL.FileList[fileind + 1];
  60       std::string targetfile = CmdL.FileList[fileind + 2];
  61       std::string hash;
  62       if (CmdL.FileSize() > fileind + 3)
  63          hash = CmdL.FileList[fileind + 3];
  64       // we use download_uri as descr and targetfile as short-descr
  65       new pkgAcqFile(&Fetcher, download_uri, hash, 0, download_uri, targetfile,
  66             "dest-dir-ignored", targetfile);
  67       targetfiles.push_back(targetfile);
  68       fileind += 3;
  69    }
  70
  71    bool Failed = false;
  72    if (AcquireRun(Fetcher, 0, &Failed, NULL) == false || Failed == true)
  73       return _error->Error(_("Download Failed"));
  74    if (targetfiles.empty() == false)
  75       for (std::vector<std::string>::const_iterator f = targetfiles.begin(); f != targetfiles.end(); ++f)
  76          if (FileExists(*f) == false)
  77             return _error->Error(_("Download Failed"));
  78
  79    return true;
  80 }
  81
  82 static bool ShowHelp(CommandLine &)
  83 {
  84    ioprintf(std::cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION,
  85             COMMON_ARCH,__DATE__,__TIME__);
  86
  87    if (_config->FindB("version") == true)
  88      return true;
  89
  90    std::cout <<
  91     _("Usage: apt-helper [options] command\n"
  92       "       apt-helper [options] download-file uri target-path\n"
  93       "\n"
  94       "apt-helper is a internal helper for apt\n"
  95       "\n"
  96       "Commands:\n"
  97       "   download-file - download the given uri to the target-path\n"
  98       "   auto-detect-proxy - detect proxy using apt.conf\n"
  99       "\n"
 100       "                       This APT helper has Super Meep Powers.\n");
 101    return true;
 102 }
 103
 104
 105 int main(int argc,const char *argv[])                                   /*{{{*/
 106 {
 107    CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
 108                                    {"download-file", &DoDownloadFile},
 109                                    {"auto-detect-proxy", &DoAutoDetectProxy},
 110                                    {0,0}};
 111
 112    std::vector<CommandLine::Args> Args = getCommandArgs(
 113       "apt-download", CommandLine::GetCommand(Cmds, argc, argv));
 114
 115    // Set up gettext support
 116    setlocale(LC_ALL,"");
 117    textdomain(PACKAGE);
 118
 119    // Parse the command line and initialize the package library
 120    CommandLine CmdL(Args.data(),_config);
 121    if (pkgInitConfig(*_config) == false ||
 122        CmdL.Parse(argc,argv) == false ||
 123        pkgInitSystem(*_config,_system) == false)
 124    {
 125       if (_config->FindB("version") == true)
 126          ShowHelp(CmdL);
 127       _error->DumpErrors();
 128       return 100;
 129    }
 130
 131    // See if the help should be shown
 132    if (_config->FindB("help") == true ||
 133        _config->FindB("version") == true ||
 134        CmdL.FileSize() == 0)
 135    {
 136       ShowHelp(CmdL);
 137       return 0;
 138    }
 139
 140    InitOutput();
 141
 142    // Match the operation
 143    CmdL.DispatchArg(Cmds);
 144
 145    // Print any errors or warnings found during parsing
 146    bool const Errors = _error->PendingError();
 147    if (_config->FindI("quiet",0) > 0)
 148       _error->DumpErrors();
 149    else
 150       _error->DumpErrors(GlobalError::DEBUG);
 151    return Errors == true ? 100 : 0;
 152 }
 153                                                                         /*}}}*/