[extensions-web] gravatar: Fix fallback

[Jasper St. Pierre <jstpierre src gnome org>]

commit 9298de88a55748d081b482048b5e16e853598871
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Feb 9 14:27:59 2012 -0500

    gravatar: Fix fallback
    
    It seems gravatar doesn't like relative URLs

 .../auth/templates/registration/profile.html       |    2 +-
 .../extensions/templates/extensions/comments.html  |    2 +-
 sweettooth/extensions/templatetags/gravatar.py     |    4 +++-
 3 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/sweettooth/auth/templates/registration/profile.html b/sweettooth/auth/templates/registration/profile.html
index c1bf1dc..62bfe51 100644
--- a/sweettooth/auth/templates/registration/profile.html
+++ b/sweettooth/auth/templates/registration/profile.html
@@ -12,7 +12,7 @@
   {% else %}
   <h2>{{ display_name }}</h2>
   {% endif %}
-  <img class="gravatar" src="{% gravatar_url user.email 128 %}">
+  <img class="gravatar" src="{% gravatar_url request user.email 128 %}">
   <p>
     Your avatar is managed through <a href="https://secure.gravatar.com/";>Gravatar</a>
   </p>
diff --git a/sweettooth/extensions/templates/extensions/comments.html b/sweettooth/extensions/templates/extensions/comments.html
index cea9902..c0db913 100644
--- a/sweettooth/extensions/templates/extensions/comments.html
+++ b/sweettooth/extensions/templates/extensions/comments.html
@@ -11,7 +11,7 @@
   {% else %}
   <div class="comment">
   {% endif %}
-    <img src="{% gravatar_url comment.email %}" class="gravatar">
+    <img src="{% gravatar_url request comment.email %}" class="gravatar">
     <div class="rating-author">
       {% if comment.rating != -1 %}
       <div class="rating" data-rating-value="{{ comment.rating }}"></div> by
diff --git a/sweettooth/extensions/templatetags/gravatar.py b/sweettooth/extensions/templatetags/gravatar.py
index df034a3..887a0a1 100644
--- a/sweettooth/extensions/templatetags/gravatar.py
+++ b/sweettooth/extensions/templatetags/gravatar.py
@@ -6,7 +6,9 @@ register = template.Library()
 GRAVATAR_BASE = "https://secure.gravatar.com/avatar/%s?%s";
 
 @register.simple_tag
-def gravatar_url(email, size=70, default="/static/images/nobody.png"):
+def gravatar_url(request, email, size=70):
     email_md5 = hashlib.md5(email.lower()).hexdigest()
+    default = request.build_absolute_uri("/static/images/nobody.png")
     options = urllib.urlencode(dict(d=default, s=size))
+
     return GRAVATAR_BASE % (email_md5, options)