Added Opera extension type

sitescripts/extensions/bin/updateDownloadLinks.py

Index: sitescripts/extensions/bin/updateDownloadLinks.py
===================================================================
--- a/sitescripts/extensions/bin/updateDownloadLinks.py
+++ b/sitescripts/extensions/bin/updateDownloadLinks.py
@@ -18,17 +18,17 @@
 """
 Update the list of extenstions
 ==============================
 
   This script generates a list of extensions and saves these with download links
   and version information
 """
 
-import os, urllib, urlparse, subprocess, time
+import os, re, urllib, urllib2, urlparse, subprocess, time
 import xml.dom.minidom as dom
 from ConfigParser import SafeConfigParser
 from StringIO import StringIO
 from sitescripts.utils import get_config, get_template
 from sitescripts.extensions.utils import compareVersions, Configuration
 from buildtools.packagerGecko import KNOWN_APPS
 
 def urlencode(value):
@@ -72,16 +72,36 @@ def getGoogleDownloadLink(galleryID):
   document = dom.parseString(contents)
   updateTags = document.getElementsByTagName('updatecheck')
   updateTag = updateTags[0] if len(updateTags) > 0 else None
   if updateTag and updateTag.hasAttribute('codebase') and updateTag.hasAttribute('version'):
     return (updateTag.getAttribute('codebase'), updateTag.getAttribute('version'))
   else:
     return (None, None)
 
+def getOperaDownloadLink(galleryID):
+  """
+  gets download link for an Opera add-on from the Opera Addons site
+  """
+  class HeadRequest(urllib2.Request):
+    def get_method(self):
+      return "HEAD"
+
+  url = 'https://addons.opera.com/extensions/download/%s/' % urlencode(galleryID)
+  response = urllib2.urlopen(HeadRequest(url))
+  content_disposition = response.info().dict.get('content-disposition', None)
+  if content_disposition != None:
+    match = re.search(r'filename=\S+-([\d.]+)-\d+\.oex$', content_disposition)
+  else:
+    match = None;
+  if match:
+    return (url, match.group(1))
+  else:
+    return (None, None)
+
 def getLocalLink(repo):
   """
   gets the link for the newest download of an add-on in the local downloads
   repository
   """
   dir = repo.downloadsDirectory
   url = repo.downloadsURL
 
@@ -104,16 +124,18 @@ def getDownloadLink(repo):
   gets the download link to the most current version of an extension
   """
   galleryURL = None
   galleryVersion = None
   if repo.type == "gecko" and repo.galleryID:
     (galleryURL, galleryVersion) = getMozillaDownloadLink(repo.galleryID)
   elif repo.type == "chrome" and repo.galleryID:
     (galleryURL, galleryVersion) = getGoogleDownloadLink(repo.galleryID)
+  elif repo.type == "opera" and repo.galleryID:
+    (galleryURL, galleryVersion) = getOperaDownloadLink(repo.galleryID)
 
   (downloadsURL, downloadsVersion) = getLocalLink(repo)
   if galleryVersion == None or (downloadsVersion != None and
                                 compareVersions(galleryVersion, downloadsVersion) < 0):
     return (downloadsURL, downloadsVersion)
   else:
     return (galleryURL, galleryVersion)