[ABI break] merge support for http redirects, thanks to

Jeff Licquia and Anthony Towns

4 files changed, 49 insertions, 1 deletions

diff --git a/apt-pkg/acquire-method.cc b/apt-pkg/acquire-method.cc
index bc29417f7..acf1156dc 100644
--- a/apt-pkg/acquire-method.cc
+++ b/apt-pkg/acquire-method.cc
@@ -447,6 +447,38 @@ void pkgAcqMethod::Status(const char *Format,...)
 }
 									/*}}}*/
 
+// AcqMethod::Redirect - Send a redirect message                       /*{{{*/
+// ---------------------------------------------------------------------
+/* This method sends the redirect message and also manipulates the queue
+   to keep the pipeline synchronized. */
+void pkgAcqMethod::Redirect(const string &NewURI)
+{
+   string CurrentURI = "<UNKNOWN>";
+   if (Queue != 0)
+      CurrentURI = Queue->Uri;
+ 
+   char S[1024];
+   snprintf(S, sizeof(S)-50, "103 Redirect\nURI: %s\nNew-URI: %s\n\n",
+         CurrentURI.c_str(), NewURI.c_str());
+
+   if (write(STDOUT_FILENO,S,strlen(S)) != (ssize_t)strlen(S))
+      exit(100);
+
+   // Change the URI for the request.
+   Queue->Uri = NewURI;
+
+   /* To keep the pipeline synchronized, move the current request to
+      the end of the queue, past the end of the current pipeline. */
+   FetchItem *I;
+   for (I = Queue; I->Next != 0; I = I->Next) ;
+   I->Next = Queue;
+   Queue = Queue->Next;
+   I->Next->Next = 0;
+   if (QueueBack == 0)
+      QueueBack = I->Next;
+}
+                                                                        /*}}}*/
+
 // AcqMethod::FetchResult::FetchResult - Constructor			/*{{{*/
 // ---------------------------------------------------------------------
 /* */
diff --git a/apt-pkg/acquire-method.h b/apt-pkg/acquire-method.h
index e02eab018..fab77e664 100644
--- a/apt-pkg/acquire-method.h
+++ b/apt-pkg/acquire-method.h
@@ -84,6 +84,8 @@ class pkgAcqMethod
    void Log(const char *Format,...);
    void Status(const char *Format,...);
    
+   void Redirect(const string &NewURI);
+ 
    int Run(bool Single = false);
    inline void SetFailExtraMsg(string Msg) {FailExtra = Msg;};
    
diff --git a/apt-pkg/acquire-worker.cc b/apt-pkg/acquire-worker.cc
index 1a754dae9..78c68737c 100644
--- a/apt-pkg/acquire-worker.cc
+++ b/apt-pkg/acquire-worker.cc
@@ -220,6 +220,20 @@ bool pkgAcquire::Worker::RunMessages()
 	 Status = LookupTag(Message,"Message");
 	 break;
 	    
+         // 103 Redirect
+         case 103:
+         {
+            if (Itm == 0)
+            {
+               _error->Error("Method gave invalid 103 Redirect message");
+               break;
+            }
+ 
+            string NewURI = LookupTag(Message,"New-URI",URI.c_str());
+            Itm->URI = NewURI;
+            break;
+         }
+   
 	 // 200 URI Start
 	 case 200:
 	 {
diff --git a/apt-pkg/makefile b/apt-pkg/makefile
index 1b78c94f6..087f17740 100644
--- a/apt-pkg/makefile
+++ b/apt-pkg/makefile
@@ -13,7 +13,7 @@ include ../buildlib/defaults.mak
 # methods/makefile - FIXME
 LIBRARY=apt-pkg
 LIBEXT=$(GLIBC_VER)$(LIBSTDCPP_VER)
-MAJOR=4.6
+MAJOR=4.7
 MINOR=0
 SLIBS=$(PTHREADLIB) $(INTLLIBS) -lutil
 APT_DOMAIN:=libapt-pkg$(MAJOR)