From 646f2f6101cda3e20908928de44739dfff596b0f Mon Sep 17 00:00:00 2001
From: Malcolm Tredinnick <malcolm.tredinnick@gmail.com>
Date: Sat, 23 Aug 2008 17:28:12 +0000
Subject: [PATCH] Fixed #7494 -- Fixed build_absolute_url() for some types of
 (uncommon) URLs. Patch from tom@almostobsolete.net and RobotAdam.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8490 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 django/http/__init__.py                 | 5 ++++-
 tests/regressiontests/requests/tests.py | 8 ++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/django/http/__init__.py b/django/http/__init__.py
index bbbd1ba99a..6d24e0a23a 100644
--- a/django/http/__init__.py
+++ b/django/http/__init__.py
@@ -1,4 +1,5 @@
 import os
+import re
 from Cookie import SimpleCookie, CookieError
 from pprint import pformat
 from urllib import urlencode
@@ -18,6 +19,8 @@ from utils import *
 
 RESERVED_CHARS="!*'();:@&=+$,/?%#[]"
 
+absolute_http_url_re = re.compile(r"^https?://", re.I)
+
 class Http404(Exception):
     pass
 
@@ -65,7 +68,7 @@ class HttpRequest(object):
         """
         if not location:
             location = self.get_full_path()
-        if not ':' in location:
+        if not absolute_http_url_re.match(location):
             current_uri = '%s://%s%s' % (self.is_secure() and 'https' or 'http',
                                          self.get_host(), self.path)
             location = urljoin(current_uri, location)
diff --git a/tests/regressiontests/requests/tests.py b/tests/regressiontests/requests/tests.py
index a091113515..1615a73406 100644
--- a/tests/regressiontests/requests/tests.py
+++ b/tests/regressiontests/requests/tests.py
@@ -36,4 +36,12 @@ META:{}>
 >>> from django.http import parse_cookie
 >>> parse_cookie('invalid:key=true')
 {}
+
+>>> request = HttpRequest()
+>>> print request.build_absolute_uri(location="https://www.example.com/asdf")
+https://www.example.com/asdf
+>>> request.get_host = lambda: 'www.example.com'
+>>> request.path = ''
+>>> print request.build_absolute_uri(location="/path/with:colons")
+http://www.example.com/path/with:colons
 """