X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0190e315a34377c658fa3acb5c658a6b4a52ae1e..3af3ac2f5ec007badeded46a94be2bd06b9917a2:/methods/mirror.cc

diff --git a/methods/mirror.cc b/methods/mirror.cc
index ed42cdbfb..9d900771b 100644
--- a/methods/mirror.cc
+++ b/methods/mirror.cc
@@ -3,25 +3,31 @@
 // $Id: mirror.cc,v 1.59 2004/05/08 19:42:35 mdz Exp $
 /* ######################################################################
 
-   Mirror Aquire Method - This is the Mirror aquire method for APT.
+   Mirror Acquire Method - This is the Mirror acquire method for APT.
    
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/fileutl.h>
-#include <apt-pkg/acquire-method.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/acquire.h>
 #include <apt-pkg/error.h>
-#include <apt-pkg/hashes.h>
 #include <apt-pkg/sourcelist.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/metaindex.h>
+#include <apt-pkg/strutl.h>
 
-#include <fstream>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 #include <algorithm>
 #include <iostream>
-#include <stdarg.h>
+#include <fstream>
 #include <sys/stat.h>
-#include <sys/types.h>
+#include <sys/utsname.h>
 #include <dirent.h>
 
 using namespace std;
@@ -30,7 +36,7 @@ using namespace std;
 
 #include "mirror.h"
 #include "http.h"
-#include "apti18n.h"
+#include <apti18n.h>
 									/*}}}*/
 
 /* Done:
@@ -42,7 +48,7 @@ using namespace std;
  *   of the failure that is also send to LP
  * 
  * TODO: 
- * - deal with runing as non-root because we can't write to the lists 
+ * - deal with running as non-root because we can't write to the lists
      dir then -> use the cached mirror file
  * - better method to download than having a pkgAcquire interface here
  *   and better error handling there!
@@ -51,9 +57,9 @@ using namespace std;
  */
 
 MirrorMethod::MirrorMethod()
-   : HttpMethod(), DownloadedMirrorFile(false)
+   : HttpMethod(), DownloadedMirrorFile(false), Debug(false)
 {
-};
+}
 
 // HttpMethod::Configuration - Handle a configuration message		/*{{{*/
 // ---------------------------------------------------------------------
@@ -83,31 +89,32 @@ bool MirrorMethod::Clean(string Dir)
    pkgSourceList list;
    list.ReadMainList();
 
-   DIR *D = opendir(Dir.c_str());   
+   DIR *D = opendir(Dir.c_str());
    if (D == 0)
       return _error->Errno("opendir",_("Unable to read %s"),Dir.c_str());
-   
+
    string StartDir = SafeGetCWD();
    if (chdir(Dir.c_str()) != 0)
    {
       closedir(D);
       return _error->Errno("chdir",_("Unable to change to %s"),Dir.c_str());
    }
-   
+
    for (struct dirent *Dir = readdir(D); Dir != 0; Dir = readdir(D))
    {
       // Skip some files..
       if (strcmp(Dir->d_name,"lock") == 0 ||
 	  strcmp(Dir->d_name,"partial") == 0 ||
+	  strcmp(Dir->d_name,"lost+found") == 0 ||
 	  strcmp(Dir->d_name,".") == 0 ||
 	  strcmp(Dir->d_name,"..") == 0)
 	 continue;
 
       // see if we have that uri
-      for(I=list.begin(); I != list.end(); I++)
+      for(I=list.begin(); I != list.end(); ++I)
       {
 	 string uri = (*I)->GetURI();
-	 if(uri.find("mirror://") != 0)
+	 if(uri.compare(0, strlen("mirror://"), "mirror://") != 0)
 	    continue;
 	 string BaseUri = uri.substr(0,uri.size()-1);
 	 if (URItoFileName(BaseUri) == Dir->d_name)
@@ -115,22 +122,42 @@ bool MirrorMethod::Clean(string Dir)
       }
       // nothing found, nuke it
       if (I == list.end())
-	 unlink(Dir->d_name);
-   };
-   
-   chdir(StartDir.c_str());
+	 RemoveFile("mirror", Dir->d_name);
+   }
+
    closedir(D);
-   return true;   
+   if (chdir(StartDir.c_str()) != 0)
+      return _error->Errno("chdir",_("Unable to change to %s"),StartDir.c_str());
+   return true;
 }
 
 
-bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
+bool MirrorMethod::DownloadMirrorFile(string /*mirror_uri_str*/)
 {
-   // not that great to use pkgAcquire here, but we do not have 
+   // not that great to use pkgAcquire here, but we do not have
    // any other way right now
    string fetch = BaseUri;
    fetch.replace(0,strlen("mirror://"),"http://");
 
+#if 0 // no need for this, the getArchitectures() will also include the main
+      // arch
+   // append main architecture
+   fetch += "?arch=" + _config->Find("Apt::Architecture");
+#endif
+
+   // append all architectures
+   std::vector<std::string> vec = APT::Configuration::getArchitectures();
+   for (std::vector<std::string>::const_iterator I = vec.begin();
+        I != vec.end(); ++I)
+      if (I == vec.begin())
+         fetch += "?arch=" + (*I);
+      else
+         fetch += "&arch=" + (*I);
+
+   // append the dist as a query string
+   if (Dist != "")
+      fetch += "&dist=" + Dist;
+
    if(Debug)
       clog << "MirrorMethod::DownloadMirrorFile(): '" << fetch << "'"
            << " to " << MirrorFile << endl;
@@ -138,13 +165,15 @@ bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
    pkgAcquire Fetcher;
    new pkgAcqFile(&Fetcher, fetch, "", 0, "", "", "", MirrorFile);
    bool res = (Fetcher.Run() == pkgAcquire::Continue);
-   if(res)
+   if(res) {
       DownloadedMirrorFile = true;
+      chmod(MirrorFile.c_str(), 0644);
+   }
    Fetcher.Shutdown();
 
    if(Debug)
       clog << "MirrorMethod::DownloadMirrorFile() success: " << res << endl;
-   
+
    return res;
 }
 
@@ -155,14 +184,27 @@ bool MirrorMethod::RandomizeMirrorFile(string mirror_file)
    vector<string> content;
    string line;
 
-   // read 
+   if (!FileExists(mirror_file))
+      return false;
+
+   // read
    ifstream in(mirror_file.c_str());
    while ( !in.eof() ) {
       getline(in, line);
       content.push_back(line);
    }
-   
-   // randomize
+
+   // we want the file to be random for each different machine, but also
+   // "stable" on the same machine. this is to avoid running into out-of-sync
+   // issues (i.e. Release/Release.gpg different on each mirror)
+   struct utsname buf;
+   int seed=1;
+   if(uname(&buf) == 0) {
+      for(int i=0,seed=1; buf.nodename[i] != 0; ++i) {
+         seed = seed * 31 + buf.nodename[i];
+      }
+   }
+   srand( seed );
    random_shuffle(content.begin(), content.end());
 
    // write
@@ -238,10 +280,17 @@ bool MirrorMethod::InitMirrors()
       return _error->Error(_("No mirror file '%s' found "), MirrorFile.c_str());
    }
 
+   if (access(MirrorFile.c_str(), R_OK) != 0)
+   {
+      // FIXME: fallback to a default mirror here instead 
+      //        and provide a config option to define that default
+      return _error->Error(_("Can not read mirror file '%s'"), MirrorFile.c_str());
+   }  
+
    // FIXME: make the mirror selection more clever, do not 
    //        just use the first one!
    // BUT: we can not make this random, the mirror has to be
-   //      stable accross session, because otherwise we can
+   //      stable across session, because otherwise we can
    //      get into sync issues (got indexfiles from mirror A,
    //      but packages from mirror B - one might be out of date etc)
    ifstream in(MirrorFile.c_str());
@@ -249,8 +298,21 @@ bool MirrorMethod::InitMirrors()
    while (!in.eof()) 
    {
       getline(in, s);
-      if (s.size() > 0)
-	 AllMirrors.push_back(s);
+
+      // ignore lines that start with #
+      if (s.find("#") == 0)
+         continue;
+      // ignore empty lines
+      if (s.size() == 0)
+         continue;
+      // ignore non http lines
+      if (s.compare(0, strlen("http://"), "http://") != 0)
+         continue;
+
+      AllMirrors.push_back(s);
+   }
+   if (AllMirrors.empty()) {
+	return _error->Error(_("No entry found in mirror file '%s'"), MirrorFile.c_str());
    }
    Mirror = AllMirrors[0];
    UsedMirror = Mirror;
@@ -291,7 +353,7 @@ string MirrorMethod::GetMirrorFileName(string mirror_uri_str)
    vector<metaIndex *>::const_iterator I;
    pkgSourceList list;
    list.ReadMainList();
-   for(I=list.begin(); I != list.end(); I++)
+   for(I=list.begin(); I != list.end(); ++I)
    {
       string uristr = (*I)->GetURI();
       if(Debug)
@@ -304,6 +366,7 @@ string MirrorMethod::GetMirrorFileName(string mirror_uri_str)
 	 if(Debug)
 	    std::cerr << "found BaseURI: " << uristr << std::endl;
 	 BaseUri = uristr.substr(0,uristr.size()-1);
+         Dist = (*I)->GetDist();
       }
    }
    // get new file
@@ -341,8 +404,8 @@ bool MirrorMethod::Fetch(FetchItem *Itm)
    if(Itm->IndexFile && !DownloadedMirrorFile)
    {
       Clean(_config->FindDir("Dir::State::mirrors"));
-      DownloadMirrorFile(Itm->Uri);
-      RandomizeMirrorFile(MirrorFile);
+      if (DownloadMirrorFile(Itm->Uri))
+         RandomizeMirrorFile(MirrorFile);
    }
 
    if(AllMirrors.empty()) {
@@ -359,10 +422,10 @@ bool MirrorMethod::Fetch(FetchItem *Itm)
 
    if(Debug)
       clog << "Fetch: " << Itm->Uri << endl << endl;
-   
+
    // now run the real fetcher
    return HttpMethod::Fetch(Itm);
-};
+}
 
 void MirrorMethod::Fail(string Err,bool Transient)
 {
@@ -374,7 +437,7 @@ void MirrorMethod::Fail(string Err,bool Transient)
 
    // try the next mirror on fail (if its not a expected failure,
    // e.g. translations are ok to ignore)
-   if (!Queue->FailIgnore && TryNextMirror()) 
+   if (!Queue->FailIgnore && TryNextMirror())
       return;
 
    // all mirrors failed, so bail out
@@ -401,13 +464,7 @@ void MirrorMethod::URIDone(FetchResult &Res,FetchResult *Alt)
 
 int main()
 {
-   setlocale(LC_ALL, "");
-
-   srand ( time(NULL) );
-
-   MirrorMethod Mth;
-
-   return Mth.Loop();
+   return MirrorMethod().Loop();
 }