[libsoup] Fix POST 301 redirect behavior

[Dan Winship <danw src gnome org>]

commit 825a7a8e3fa9572173fa96fb9f449e1325b9e6bc
Author: Dan Winship <danw gnome org>
Date:   Mon Jun 22 17:52:39 2009 -0400

    Fix POST 301 redirect behavior
    
    We were doing POST->GET translation on 302 and 303, but we need to do
    it on 301 as well to be compatible.
    
    http://bugzilla.gnome.org/show_bug.cgi?id=586692

 libsoup/soup-session.c |    4 +++-
 tests/redirect-test.c  |    3 ++-
 2 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/libsoup/soup-session.c b/libsoup/soup-session.c
index b9b74f7..3c824d5 100644
--- a/libsoup/soup-session.c
+++ b/libsoup/soup-session.c
@@ -845,7 +845,9 @@ redirect_handler (SoupMessage *msg, gpointer user_data)
 
 	if (msg->status_code == SOUP_STATUS_SEE_OTHER ||
 	    (msg->status_code == SOUP_STATUS_FOUND &&
-	     !SOUP_METHOD_IS_SAFE (msg->method))) {
+	     !SOUP_METHOD_IS_SAFE (msg->method)) ||
+	    (msg->status_code == SOUP_STATUS_MOVED_PERMANENTLY &&
+	     msg->method == SOUP_METHOD_POST)) {
 		/* Redirect using a GET */
 		g_object_set (msg,
 			      SOUP_MESSAGE_METHOD, SOUP_METHOD_GET,
diff --git a/tests/redirect-test.c b/tests/redirect-test.c
index 9d5d9b8..9e21bd1 100644
--- a/tests/redirect-test.c
+++ b/tests/redirect-test.c
@@ -82,9 +82,10 @@ static struct {
 	    { "HEAD", "/302", 302 },
 	    { "HEAD", "/", 200 } } },
 
-	/* POST should only automatically redirect on 302 and 303 */
+	/* POST should only automatically redirect on 301, 302 and 303 */
 
 	{ { { "POST", "/301", 301 },
+	    { "GET", "/", 200 },
 	    { NULL } } },
 	{ { { "POST", "/302", 302 },
 	    { "GET", "/", 200 },