X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0ded3ad3438666f833773895ef6318f84d2f849d..ad3e5dc54d1eebca3edbad928a946c1b0a5e275a:/methods/mirror.cc

diff --git a/methods/mirror.cc b/methods/mirror.cc
index b9fa55d87..e8873d97b 100644
--- a/methods/mirror.cc
+++ b/methods/mirror.cc
@@ -106,7 +106,7 @@ bool MirrorMethod::Clean(string Dir)
       for(I=list.begin(); I != list.end(); I++)
       {
 	 string uri = (*I)->GetURI();
-	 if(uri.substr(0,strlen("mirror://")) != string("mirror://"))
+	 if(uri.find("mirror://") != 0)
 	    continue;
 	 string BaseUri = uri.substr(0,uri.size()-1);
 	 if (URItoFileName(BaseUri) == Dir->d_name)
@@ -128,28 +128,6 @@ bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
    if(Debug)
       clog << "MirrorMethod::DownloadMirrorFile(): " << endl;
 
-   // check the file, if it is not older than RefreshInterval just use it
-   // otherwise try to get a new one
-   if(FileExists(MirrorFile)) 
-   {
-      struct stat buf;
-      time_t t,now,refresh;
-      if(stat(MirrorFile.c_str(), &buf) != 0)
-	 return false;
-      t = std::max(buf.st_mtime, buf.st_ctime);
-      now = time(NULL);
-      refresh = 60*_config->FindI("Acquire::Mirror::RefreshInterval",360);
-      if(t + refresh > now)
-      {
-	 if(Debug)
-	    clog << "Mirror file is in RefreshInterval" << endl;
-	 DownloadedMirrorFile = true;
-	 return true;
-      }
-      if(Debug)
-	 clog << "Mirror file " << MirrorFile << " older than " << refresh << "min, re-download it" << endl;
-   }
-
    // not that great to use pkgAcquire here, but we do not have 
    // any other way right now
    string fetch = BaseUri;
@@ -164,13 +142,51 @@ bool MirrorMethod::DownloadMirrorFile(string mirror_uri_str)
    return res;
 }
 
-bool MirrorMethod::SelectNextMirror()
+/* convert a the Queue->Uri back to the mirror base uri and look
+ * at all mirrors we have for this, this is needed as queue->uri
+ * may point to different mirrors (if TryNextMirror() was run)
+ */
+void MirrorMethod::CurrentQueueUriToMirror()
 {
-   if(Debug)
-      cerr << "using mirror: " << Mirror << endl;
+   // already in mirror:// style so nothing to do
+   if(Queue->Uri.find("mirror://") == 0)
+      return;
+
+   // find current mirror and select next one
+   for (vector<string>::const_iterator mirror = AllMirrors.begin();
+	mirror != AllMirrors.end(); ++mirror)
+   {
+      if (Queue->Uri.find(*mirror) == 0)
+      {
+	 Queue->Uri.replace(0, mirror->length(), BaseUri);
+	 return;
+      }
+   }
+   _error->Error("Internal error: Failed to convert %s back to %s",
+		 Queue->Uri.c_str(), BaseUri.c_str());
+}
+
+bool MirrorMethod::TryNextMirror()
+{
+   // find current mirror and select next one
+   for (vector<string>::const_iterator mirror = AllMirrors.begin();
+	mirror != AllMirrors.end(); ++mirror)
+   {
+      if (Queue->Uri.find(*mirror) != 0)
+	 continue;
+
+      vector<string>::const_iterator nextmirror = mirror + 1;
+      if (nextmirror != AllMirrors.end())
+	 break;
+      Queue->Uri.replace(0, mirror->length(), *nextmirror);
+      if (Debug)
+	 clog << "TryNextMirror: " << Queue->Uri << endl;
+      return true;
+   }
+
+   if (Debug)
+      clog << "TryNextMirror could not find another mirror to try" << endl;
 
-   Mirror = AllMirrors[0];
-   UsedMirror = Mirror;
    return false;
 }
 
@@ -198,7 +214,8 @@ bool MirrorMethod::InitMirrors()
       if (s.size() > 0)
 	 AllMirrors.push_back(s);
    }
-   SelectNextMirror();
+   Mirror = AllMirrors[0];
+   UsedMirror = Mirror;
    return true;
 }
 
@@ -289,7 +306,7 @@ bool MirrorMethod::Fetch(FetchItem *Itm)
       DownloadMirrorFile(Itm->Uri);
    }
 
-   if(Mirror.empty()) {
+   if(AllMirrors.empty()) {
       if(!InitMirrors()) {
 	 // no valid mirror selected, something went wrong downloading
 	 // from the master mirror site most likely and there is
@@ -297,15 +314,12 @@ bool MirrorMethod::Fetch(FetchItem *Itm)
 	 return false;
       }
    }
-   if(Debug)
-      clog << "selected mirror: " << Mirror << endl;
 
+   if(Itm->Uri.find("mirror://") != string::npos)
+      Itm->Uri.replace(0,BaseUri.size(), Mirror);
 
-   for (FetchItem *I = Queue; I != 0; I = I->Next)
-   {
-      if(I->Uri.find("mirror://") != string::npos)
-	 I->Uri.replace(0,BaseUri.size(), Mirror);
-   }
+   if(Debug)
+      clog << "Fetch: " << Itm->Uri << endl << endl;
    
    // now run the real fetcher
    return HttpMethod::Fetch(Itm);
@@ -313,35 +327,35 @@ bool MirrorMethod::Fetch(FetchItem *Itm)
 
 void MirrorMethod::Fail(string Err,bool Transient)
 {
-   // try the next mirror on fail
-   string old_mirror = Mirror;
-   if (SelectNextMirror()) 
-   {
-      Queue->Uri.replace(0, old_mirror.size(), Mirror);
+   // FIXME: TryNextMirror is not ideal for indexfile as we may
+   //        run into auth issues
+
+   if (Debug)
+      clog << "Failure to get " << Queue->Uri << endl;
+
+   // try the next mirror on fail (if its not a expected failure,
+   // e.g. translations are ok to ignore)
+   if (!Queue->FailIgnore && TryNextMirror()) 
       return;
-   }
 
    // all mirrors failed, so bail out
    string s;
    strprintf(s, _("[Mirror: %s]"), Mirror.c_str());
    SetIP(s);
 
-   if(Queue->Uri.find("http://") != string::npos)
-      Queue->Uri.replace(0,Mirror.size(), BaseUri);
+   CurrentQueueUriToMirror();
    pkgAcqMethod::Fail(Err, Transient);
 }
 
 void MirrorMethod::URIStart(FetchResult &Res)
 {
-   if(Queue->Uri.find("http://") != string::npos)
-      Queue->Uri.replace(0,Mirror.size(), BaseUri);
+   CurrentQueueUriToMirror();
    pkgAcqMethod::URIStart(Res);
 }
 
 void MirrorMethod::URIDone(FetchResult &Res,FetchResult *Alt)
 {
-   if(Queue->Uri.find("http://") != string::npos)
-      Queue->Uri.replace(0,Mirror.size(), BaseUri);
+   CurrentQueueUriToMirror();
    pkgAcqMethod::URIDone(Res, Alt);
 }