From f3208fad41a7dbbb027d696b8c0a1db6d3bb0800 Mon Sep 17 00:00:00 2001
From: Lucian Branescu Mihaila <lucian.branescu@gmail.com>
Date: Tue, 28 Jul 2009 23:29:47 +0000
Subject: Workaround for saving data: URIs

---
diff --git a/downloadmanager.py b/downloadmanager.py
index f6a6eaf..d580d55 100644
--- a/downloadmanager.py
+++ b/downloadmanager.py
@@ -295,6 +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)
@@ -309,7 +314,6 @@ def save_link(url, text, owner_document):
         interfaces.nsIRequest.LOAD_BYPASS_CACHE | \
         interfaces.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS
 
-    # if _implements_interface(channel, interfaces.nsIHttpChannel): # trac#1029
     if _implements_interface(channel, interfaces.nsIHttpChannel):
         channel.referrer = io_service.newURI(owner_document.documentURI, None,
                                              None)
@@ -320,11 +324,54 @@ def save_link(url, text, 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)
         return True
     except xpcom.Exception, e:
+        logging.debug('***** %s' % e.errno)
         if e.errno == NS_NOINTERFACE:
             return False
         else:
diff --git a/usercode.py b/usercode.py
index 7dbe945..e62b339 100644
--- a/usercode.py
+++ b/usercode.py
@@ -255,10 +255,12 @@ class Injector():
                                                 interfaces.nsIDOMEventListener)
     
     def handleEvent(self, event):
+        logging.debug('***** finish inject')
+        logging.debug('***** %s' % self.head.innerHTML)
         self.head.appendChild(self.script)
-        logging.debug('%^^%^^ actual inject')
     
     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'
@@ -271,6 +273,8 @@ class Injector():
         
         # actual attaching
         window.addEventListener('load', self._wrapped, False)
+        logging.debug('***** injecting ...')
+        
     
 class ScriptListener(gobject.GObject):
     _com_interfaces_ = interfaces.nsIWebProgressListener
diff --git a/webactivity.py b/webactivity.py
index 7f35f2a..fbad615 100644
--- a/webactivity.py
+++ b/webactivity.py
@@ -544,6 +544,7 @@ class WebActivity(activity.Activity):
             self._bm_store.add(name, url)
             
     def _userscript_found_cb(self, listener, location):
+        '''Ask user whether to install the userscript'''
         alert = ConfirmationAlert()
         alert.props.title = _('Add userscript')
         if usercode.script_exists(location):
@@ -564,7 +565,7 @@ class WebActivity(activity.Activity):
             usercode.add_script(alert._location)
             
     def _userscript_inject_cb(self, listener, script_path):
-        logging.debug('Injecting %s' % script_path)      
+        logging.debug('Injecting %s' % script_path)    
         usercode.Injector(script_path).attach_to(self._browser.dom_window)
         
     def _add_link(self):
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