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-rw-r--r--apt-pkg/acquire-method.cc32
-rw-r--r--apt-pkg/acquire-method.h2
-rw-r--r--apt-pkg/acquire-worker.cc14
-rw-r--r--apt-pkg/makefile2
-rw-r--r--debian/changelog2
-rw-r--r--methods/http.cc78
-rw-r--r--methods/http.h3
-rw-r--r--methods/makefile2
8 files changed, 132 insertions, 3 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)
diff --git a/debian/changelog b/debian/changelog
index fea9133ee..caef53baf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -35,6 +35,8 @@ apt (0.7.21) UNRELEASED; urgency=low
- make strings i18n able
* apt-pkg/contrib/strutl.cc:
- fix TimeToStr i18n (LP: #289807)
+ * [ABI break] merge support for http redirects, thanks to
+ Jeff Licquia and Anthony Towns
[ Dereck Wonnacott ]
* apt-ftparchive might write corrupt Release files (LP: #46439)
diff --git a/methods/http.cc b/methods/http.cc
index b3c791fa0..1bf798da4 100644
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -39,6 +39,7 @@
#include <errno.h>
#include <string.h>
#include <iostream>
+#include <map>
#include <apti18n.h>
// Internet stuff
@@ -57,6 +58,7 @@ int HttpMethod::FailFd = -1;
time_t HttpMethod::FailTime = 0;
unsigned long PipelineDepth = 10;
unsigned long TimeOut = 120;
+bool AllowRedirect = false;
bool Debug = false;
URI Proxy;
@@ -628,6 +630,12 @@ bool ServerState::HeaderLine(string Line)
return true;
}
+ if (stringcasecmp(Tag,"Location:") == 0)
+ {
+ Location = Val;
+ return true;
+ }
+
return true;
}
/*}}}*/
@@ -900,7 +908,9 @@ bool HttpMethod::ServerDie(ServerState *Srv)
1 - IMS hit
3 - Unrecoverable error
4 - Error with error content page
- 5 - Unrecoverable non-server error (close the connection) */
+ 5 - Unrecoverable non-server error (close the connection)
+ 6 - Try again with a new or changed URI
+ */
int HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
{
// Not Modified
@@ -912,6 +922,27 @@ int HttpMethod::DealWithHeaders(FetchResult &Res,ServerState *Srv)
return 1;
}
+ /* Redirect
+ *
+ * Note that it is only OK for us to treat all redirection the same
+ * because we *always* use GET, not other HTTP methods. There are
+ * three redirection codes for which it is not appropriate that we
+ * redirect. Pass on those codes so the error handling kicks in.
+ */
+ if (AllowRedirect
+ && (Srv->Result > 300 && Srv->Result < 400)
+ && (Srv->Result != 300 // Multiple Choices
+ && Srv->Result != 304 // Not Modified
+ && Srv->Result != 306)) // (Not part of HTTP/1.1, reserved)
+ {
+ if (!Srv->Location.empty())
+ {
+ NextURI = Srv->Location;
+ return 6;
+ }
+ /* else pass through for error message */
+ }
+
/* We have a reply we dont handle. This should indicate a perm server
failure */
if (Srv->Result < 200 || Srv->Result >= 300)
@@ -1026,6 +1057,7 @@ bool HttpMethod::Configuration(string Message)
if (pkgAcqMethod::Configuration(Message) == false)
return false;
+ AllowRedirect = _config->FindB("Acquire::http::AllowRedirect",true);
TimeOut = _config->FindI("Acquire::http::Timeout",TimeOut);
PipelineDepth = _config->FindI("Acquire::http::Pipeline-Depth",
PipelineDepth);
@@ -1039,6 +1071,10 @@ bool HttpMethod::Configuration(string Message)
/* */
int HttpMethod::Loop()
{
+ typedef vector<string> StringVector;
+ typedef vector<string>::iterator StringVectorIterator;
+ map<string, StringVector> Redirected;
+
signal(SIGTERM,SigTerm);
signal(SIGINT,SigTerm);
@@ -1225,6 +1261,46 @@ int HttpMethod::Loop()
break;
}
+ // Try again with a new URL
+ case 6:
+ {
+ // Clear rest of response if there is content
+ if (Server->HaveContent)
+ {
+ File = new FileFd("/dev/null",FileFd::WriteExists);
+ Server->RunData();
+ delete File;
+ File = 0;
+ }
+
+ /* Detect redirect loops. No more redirects are allowed
+ after the same URI is seen twice in a queue item. */
+ StringVector &R = Redirected[Queue->DestFile];
+ bool StopRedirects = false;
+ if (R.size() == 0)
+ R.push_back(Queue->Uri);
+ else if (R[0] == "STOP" || R.size() > 10)
+ StopRedirects = true;
+ else
+ {
+ for (StringVectorIterator I = R.begin(); I != R.end(); I++)
+ if (Queue->Uri == *I)
+ {
+ R[0] = "STOP";
+ break;
+ }
+
+ R.push_back(Queue->Uri);
+ }
+
+ if (StopRedirects == false)
+ Redirect(NextURI);
+ else
+ Fail();
+
+ break;
+ }
+
default:
Fail(_("Internal error"));
break;
diff --git a/methods/http.h b/methods/http.h
index 6753a9901..13f02ec77 100644
--- a/methods/http.h
+++ b/methods/http.h
@@ -99,6 +99,7 @@ struct ServerState
enum {Chunked,Stream,Closes} Encoding;
enum {Header, Data} State;
bool Persistent;
+ string Location;
// This is a Persistent attribute of the server itself.
bool Pipeline;
@@ -143,6 +144,8 @@ class HttpMethod : public pkgAcqMethod
static time_t FailTime;
static void SigTerm(int);
+ string NextURI;
+
public:
friend class ServerState;
diff --git a/methods/makefile b/methods/makefile
index d9481dbcc..78bdbc96f 100644
--- a/methods/makefile
+++ b/methods/makefile
@@ -7,7 +7,7 @@ include ../buildlib/defaults.mak
BIN := $(BIN)/methods
# FIXME..
-LIB_APT_PKG_MAJOR = 4.6
+LIB_APT_PKG_MAJOR = 4.7
APT_DOMAIN := libapt-pkg$(LIB_APT_PKG_MAJOR)
# The file method