Add support for extracting cover images to fb2-meta

src/calibre/ebooks/metadata/fb2.py

@@ -5,7 +5,8 @@ __copyright__ = '2008, Anatoly Shipitsin <norguhtar at gmail.com>'
 
 '''Read meta information from fb2 files'''
 
-import sys, os
+import sys, os, mimetypes
+from base64 import b64decode
 
 from calibre.ebooks.BeautifulSoup import BeautifulStoneSoup
 from calibre.ebooks.metadata import MetaInformation
@@ -18,15 +19,30 @@ def get_metadata(stream):
     author= [firstname+" "+lastname]
     title = soup.find("book-title").string
     comments = soup.find("annotation")
+    cp = soup.find('coverpage')
+    cdata = None
+    if cp:
+        cimage = cp.find('image', attrs={'l:href':True})
+        if cimage:
+            id = cimage['l:href'].replace('#', '')
+            binary = soup.find('binary', id=id, attrs={'content-type':True})
+            if binary:
+                mt = binary['content-type']
+                exts = mimetypes.guess_all_extensions(mt)
+                if not exts:
+                    exts = ['.jpg']
+                cdata = (exts[0][1:], b64decode(binary.string.strip()))
+                
     if comments and len(comments) > 1:
-            comments = comments.p.contents[0]
+        comments = comments.p.contents[0]
     series = soup.find("sequence")
- #   series_index = series.index
     mi = MetaInformation(title, author)
     mi.comments = comments
+    mi.author_sort = lastname+'; '+firstname
     if series:
         mi.series = series.get('name', None)
- #   mi.series_index = series_index
+    if cdata:
+        mi.cover_data = cdata
     return mi
 
 def main(args=sys.argv):