From a8c8fd55008d38e8a46430d833bb71ae366bd1ca Mon Sep 17 00:00:00 2001
From: Lucian Branescu Mihaila <lucian.branescu@gmail.com>
Date: Wed, 29 Jul 2009 16:46:26 +0000
Subject: Replace data URI download hack with another, smaller hack. trac #1029

---
diff --git a/downloadmanager.py b/downloadmanager.py
index d580d55..d55b2c4 100644
--- a/downloadmanager.py
+++ b/downloadmanager.py
@@ -295,16 +295,11 @@ components.registrar.registerFactory('{23c51569-e9a1-4a92-adeb-3723db82ef7c}',
 def save_link(url, text, owner_document):
     # Inspired on Firefox' browser/base/content/nsContextMenu.js:saveLink()
 
-    # HACK, workaround for ticket #1029
-    if url.startswith('data:'):
-        save_data_uri(url, text, owner_document)
-        return
-
     cls = components.classes["@mozilla.org/network/io-service;1"]
     io_service = cls.getService(interfaces.nsIIOService)
     uri = io_service.newURI(url, None, None)
     channel = io_service.newChannelFromURI(uri)
-
+   
     auth_prompt_callback = xpcom.server.WrapObject(
             _AuthPromptCallback(owner_document.defaultView),
             interfaces.nsIInterfaceRequestor)
@@ -314,58 +309,18 @@ def save_link(url, text, owner_document):
         interfaces.nsIRequest.LOAD_BYPASS_CACHE | \
         interfaces.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS
 
-    if _implements_interface(channel, interfaces.nsIHttpChannel):
-        channel.referrer = io_service.newURI(owner_document.documentURI, None,
-                                             None)
+    if uri.scheme == 'http':
+        if _implements_interface(channel, interfaces.nsIHttpChannel):
+            channel.referrer = io_service.newURI(owner_document.documentURI,
+                                                 None, None)
 
     # kick off the channel with our proxy object as the listener
     listener = xpcom.server.WrapObject(
             _SaveLinkProgressListener(owner_document),
             interfaces.nsIStreamListener)
+            
     channel.asyncOpen(listener, None)
 
-def save_data_uri(url, text, owner_document):
-    '''Special case, workaround for ticket #1029'''
-    import base64
-    import re
-    
-    pattern = re.compile(r'''
-                  ^data:  
-                  (\w+/\w+)?            # mimetype
-                  (?:;charset="(\w+)")? # charset
-                  (?:;(base64))?        # encoding
-                  ,(.+)                 # actual data
-                  $
-                  ''', re.VERBOSE)
-    result = re.search(pattern, url).groups()
-    logging.debug('^^^^^ %s' % str(result))
-    
-    mime = result[0] or 'text/plain'
-    charset = result[1] or 'US-ASCII'
-    encoding = result[2] or 'base64'
-    data = base64.decodestring(result[3])
-    
-    temp_path = os.path.join(activity.get_activity_root(), 'instance')
-    if not os.path.exists(temp_path):
-        os.makedirs(temp_path)
-    fd, file_path = tempfile.mkstemp(dir=temp_path, prefix='datauri',
-                                     suffix='')
-    os.close(fd)
-    os.chmod(file_path, 0644)
-    
-    # write data to file
-    open(file_path, 'w').write(data)
-    
-    jobject = datastore.create()
-    jobject.metadata['title'] = 'datauri'
-    jobject.metadata['mime_type'] = mime
-    jobject.metadata['icon-color'] = profile.get_color().to_string()
-    jobject.file_path = file_path
-    
-    datastore.write(jobject)
-    activity.show_object_in_journal(jobject.object_id)
-    
-
 def _implements_interface(obj, interface):
     try:
         obj.QueryInterface(interface)
@@ -412,7 +367,7 @@ class _SaveLinkProgressListener(object):
         external_helper = cls.getService(
                                 interfaces.nsIExternalHelperAppService)
 
-        channel = request.QueryInterface(interfaces.nsIHttpChannel)
+        channel = request.QueryInterface(interfaces.nsIChannel)
 
         self._external_listener = \
             external_helper.doContent(channel.contentType, request, 
diff --git a/palettes.py b/palettes.py
index c86d8dd..79c27ca 100644
--- a/palettes.py
+++ b/palettes.py
@@ -108,7 +108,7 @@ class LinkPalette(Palette):
         menu_item.show()
         
         if url.startswith('javascript:'):
-            # only show in an ssb, if the link is a bookmarklet
+            # only show if the link is a bookmarklet
             menu_item = MenuItem(_('Save bookmarklet'))
             menu_item.connect('activate', self.__bookmarklet_activate_cb)
             self.menu.append(menu_item)
diff --git a/usercode.py b/usercode.py
index e62b339..7a77b40 100644
--- a/usercode.py
+++ b/usercode.py
@@ -255,16 +255,13 @@ class Injector():
                                                 interfaces.nsIDOMEventListener)
     
     def handleEvent(self, event):
-        logging.debug('***** finish inject')
-        logging.debug('***** %s' % self.head.innerHTML)
         self.head.appendChild(self.script)
     
     def attach_to(self, window):
-        logging.debug('***** starting inject')
         # set up the script element to be injected
         self.script = window.document.createElement('script')
         self.script.type = 'text/javascript'
-        #self.script.src = 'file://' + self.script_path # XSS security fail
+        # working around XSS security
         text = open(self.script_path,'r').read()
         self.script.appendChild( window.document.createTextNode(text) )
         
@@ -273,7 +270,6 @@ class Injector():
         
         # actual attaching
         window.addEventListener('load', self._wrapped, False)
-        logging.debug('***** injecting ...')
         
     
 class ScriptListener(gobject.GObject):
--
cgit v0.9.1