Added handling of HTTP status when requesting images

lib/async_http_client.py

@@ -15,6 +15,7 @@
 import asyncore
 import logging
 import queue
+import re
 import socket
 import threading
 import urllib
@@ -95,7 +96,15 @@ def handle_expt(self):
     def handle_close(self):
         self.close()
 
-        self._client.http_received_data(self._data)
+        match = re.match(b'^HTTP/\d+\.\d+ (\d+)', self._header)
+        if match is not None:
+            status = int(match.group(1))
+            self.log("Response: HTTP status %d" % (status))
+
+            if status >= 200 and status <= 299:
+                self._client.http_received_data(self._data)
+            else:
+                self._client.http_closed()
 
         self._header = None
         self._data = b""

lib/main_frame.py

@@ -699,11 +699,10 @@ def create_bitmap(self, image_data):
 
         bitmap = None
 
-        try:
-            image = wx.Image(stream)
+        image = wx.Image(stream)
+        if image.IsOk():
             bitmap = wx.Bitmap(image)
-        except wx.wxAssertionError as ex:
-            # Invalid image data.
+        else:
             logging.warning("Couldn't create image")
 
         return bitmap