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Check for masthead image when generating MOBI periodicals

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This commit is contained in:
Kovid Goyal 2009-07-06 08:56:34 -06:00
parent 6ac637a9de
commit 45366b0df5
1 changed files with 30 additions and 15 deletions
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45
src/calibre/ebooks/mobi/writer.py
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@ -386,8 +386,16 @@ class MobiWriter(object):
def _map_image_names(self):
index = 1
self._images = images = {}
mh_href = None
if 'masthead' in self._oeb.guide:
mh_href = self._oeb.guide['masthead'].href
images[mh_href] = 1
index += 1
for item in self._oeb.manifest.values():
if item.media_type in OEB_RASTER_IMAGES:
if item.href == mh_href: continue
images[item.href] = index
index += 1
@ -1195,6 +1203,13 @@ class MobiWriter(object):
self._oeb.logger.info('metadata missing timestamp needed for periodical')
return False
# Periodicals also need a mastheadImage in the manifest
has_mastheadImage = 'masthead' in self._oeb.guide
if not has_mastheadImage :
self._oeb.logger.info('mastheadImage missing from manifest, aborting periodical indexing')
return False
self._oeb.logger.info('TOC structure and pubdate verified')
return True
@ -1724,26 +1739,26 @@ class MobiWriter(object):
# generate secondary INDX0
indx0 = StringIO()
indx0.write('INDX'+pack('>I', 0xc0)+'\0'*8) # header + 8x00
indx0.write(pack('>I', 0x06)) # generator ID
indx0.write(pack('>I', 0xe8)) # IDXT offset
indx0.write(pack('>I', 1)) # IDXT entries
indx0.write(pack('>I', 65001)) # encoding
indx0.write('\xff'*4) # language
indx0.write(pack('>I', 4)) # IDXT Entries in INDX1
indx0.write('\0'*4) # ORDT Offset
indx0.write('\0'*136) # everything up to TAGX offset
indx0.write(pack('>I', 0xc0)) # TAGX offset
indx0.write('\0'*8) # unknowns
indx0.write('TAGX'+pack('>I', tagx_len)+tagx) # TAGX
indx0.write('\x0D'+'mastheadImage' + '\x00\x04') # mastheadImage
indx0.write('IDXT'+'\x00\xd8\x00\x00') # offset plus pad
indx0.write('INDX'+pack('>I', 0xc0)+'\0'*8) # header + 8x00
indx0.write(pack('>I', 0x06)) # generator ID
indx0.write(pack('>I', 0xe8)) # IDXT offset
indx0.write(pack('>I', 1)) # IDXT entries
indx0.write(pack('>I', 65001)) # encoding
indx0.write('\xff'*4) # language
indx0.write(pack('>I', 4)) # IDXT Entries in INDX1
indx0.write('\0'*4) # ORDT Offset
indx0.write('\0'*136) # everything up to TAGX offset
indx0.write(pack('>I', 0xc0)) # TAGX offset
indx0.write('\0'*8) # unknowns
indx0.write('TAGX'+pack('>I', tagx_len)+tagx) # TAGX
indx0.write('\x0D'+'mastheadImage' + '\x00\x04') # mastheadImage
indx0.write('IDXT'+'\x00\xd8\x00\x00') # offset plus pad
# generate secondary INDX1
indx1 = StringIO()
indx1.write('INDX' + pack('>I', 0xc0) + '\0'*4) # header + 4x00
indx1.write(pack('>I', 1)) # blockType 1
indx1.write(pack('>I', 0x00)) # unknown
indx1.write(pack('>I', 0x00)) # unknown
indx1.write('\x00\x00\x00\xF0') # IDXT offset
indx1.write(pack('>I', 4)) # num of IDXT entries
indx1.write('\xff'*8) # encoding, language