From c31462c2782a33886e737cf33424a36a95c81f97 Mon Sep 17 00:00:00 2001
From: Keegan McAllister <keegan@humbughq.com>
Date: Tue, 16 Oct 2012 22:42:19 -0400
Subject: [PATCH] Allow users to embed Gravatars in messages

We'll use this internally for the commit bot.  We might eventually disable it
for external users.

(imported from commit 3136cd9faadc6b81355889d2ee6472985da87fbe)
---
 zephyr/lib/bugdown.py           | 14 ++++++++++++++
 zephyr/static/styles/zephyr.css |  4 ++++
 2 files changed, 18 insertions(+)

diff --git a/zephyr/lib/bugdown.py b/zephyr/lib/bugdown.py
index f06283cebf..b9b39e81ed 100644
--- a/zephyr/lib/bugdown.py
+++ b/zephyr/lib/bugdown.py
@@ -1,6 +1,18 @@
 import re
 import markdown
 
+from zephyr.lib.avatar import gravatar_hash
+
+class Gravatar(markdown.inlinepatterns.Pattern):
+    def handleMatch(self, match):
+        # NB: the first match of our regex is match.group(2) due to
+        # markdown internal matches
+        img = markdown.util.etree.Element('img')
+        img.set('class', 'message_body_gravatar img-rounded')
+        img.set('src', 'https://secure.gravatar.com/avatar/%s?d=identicon&s=30'
+            % (gravatar_hash(match.group(2)),))
+        return img
+
 class Bugdown(markdown.Extension):
     def extendMarkdown(self, md, md_globals):
         del md.inlinePatterns['image_link']
@@ -8,6 +20,8 @@ class Bugdown(markdown.Extension):
         del md.parser.blockprocessors['hashheader']
         del md.parser.blockprocessors['setextheader']
 
+        md.inlinePatterns.add('gravatar', Gravatar(r'!gravatar\(([^)]*)\)'), '_begin')
+
 # We need to re-initialize the markdown engine every 30 messages
 # due to some sort of performance leak in the markdown library.
 MAX_MD_ENGINE_USES = 30
diff --git a/zephyr/static/styles/zephyr.css b/zephyr/static/styles/zephyr.css
index 2b8d2eee24..20be33c355 100644
--- a/zephyr/static/styles/zephyr.css
+++ b/zephyr/static/styles/zephyr.css
@@ -415,3 +415,7 @@ table.floating_recipient {
     margin-top: 0px;
     margin-bottom: 0px;
 }
+
+.message_body_gravatar {
+    margin-bottom: 2px;
+}