Fix #1846 (Calibre can not download images with space in their name)

src/calibre/web/feeds/recipes/recipe_granma.py

@@ -7,6 +7,8 @@ granma.cubaweb.cu
 '''
 import urllib
 
+from calibre.web.feeds.news import BasicNewsRecipe
+
 class Granma(BasicNewsRecipe):
     title                 = 'Diario Granma'
     __author__            = 'Darko Miletic'
@@ -49,4 +51,4 @@ class Granma(BasicNewsRecipe):
         for item in soup.findAll(style=True):
             del item['style']
         return soup
-    
+    

src/calibre/web/fetch/simple.py

@@ -8,7 +8,7 @@ Fetch a webpage and its links recursively. The webpages are saved to disk in
 UTF-8 encoding with any charset declarations removed.
 '''
 import sys, socket, os, urlparse, logging, re, time, copy, urllib2, threading, traceback
-from urllib import url2pathname
+from urllib import url2pathname, quote
 from threading import RLock
 from httplib import responses
 from PIL import Image
@@ -179,6 +179,8 @@ class RecursiveFetcher(object, LoggingInterface):
         delta = time.time() - self.last_fetch_at 
         if  delta < self.delay:
             time.sleep(delta)
+        if re.search(r'\s+', url) is not None:
+            url = quote(url)
         with self.browser_lock:
             try:
                 with closing(self.browser.open(url)) as f: