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First separate files for ereader

This commit is contained in:
some_updates 2009-12-17 21:54:15 +00:00 committed by Apprentice Alf
parent e4a0f92846
commit 988267e00e
2 changed files with 786 additions and 1090 deletions
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463
eReader_Tools/lib/erdr2pml.py
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@ -1,9 +1,14 @@
#!/usr/bin/env python
# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
#
# eRdr2Pml.py
#
# This is a python script. You need a Python interpreter to run it.
# For example, ActiveState Python, which exists for windows.
# Changelog
#
# Based on ereader2html version 0.08 plus some later small fixes
#
# 0.01 - Initial version
# 0.02 - Support more eReader files. Support bold text and links. Fix PML decoder parsing bug.
# 0.03 - Fix incorrect variable usage at one place.
@ -33,9 +38,6 @@
# in some pdb files :-( due to the same id being used multiple times
# - Added correct charset encoding (pml is based on cp1252)
# - Added logging support.
#
# TODO run this through a profiler - speed increases so far was from
# applying "quick known fixes", added (commented out) cprofiler call
# 0.05 - Improved type 272 support for sidebars, links, chapters, metainfo, etc
# 0.06 - Merge of 0.04 and 0.05. Improved HTML output
# Placed images in subfolder, so that it's possible to just
@ -45,9 +47,11 @@
# conversion in this code.
# 0.07 - Further Improved type 272 support for sidebars with all earlier fixes
# 0.08 - fixed typos, removed extraneous things
# 0.09 - tried to greatly improve html conversion especially with \t tags
# 0.09 - fixed typos in first_pages to first_page to again support older formats
# 0.10 - minor cleanups
# 0.11 - fixups for using correct xml for footnotes and sidebars for use with Dropbook
__version__='0.09'
__version__='0.11'
# Import Psyco if available
try:
@ -379,18 +383,18 @@ class EreaderProcessor(object):
self.num_image_pages = struct.unpack('>H', r[26:26+2])[0]
self.first_image_page = struct.unpack('>H', r[24:24+2])[0]
if self.version == 272:
self.num_chapter_pages = struct.unpack('>H', r[22:22+2])[0]
self.first_chapter_page = struct.unpack('>H', r[20:20+2])[0]
self.num_link_pages = struct.unpack('>H', r[30:30+2])[0]
self.first_link_page = struct.unpack('>H', r[28:28+2])[0]
self.num_bookinfo_pages = struct.unpack('>H', r[34:34+2])[0]
self.first_bookinfo_page = struct.unpack('>H', r[32:32+2])[0]
self.num_footnote_pages = struct.unpack('>H', r[46:46+2])[0]
self.first_footnote_page = struct.unpack('>H', r[44:44+2])[0]
self.num_xtextsize_pages = struct.unpack('>H', r[54:54+2])[0]
self.first_xtextsize_page = struct.unpack('>H', r[52:52+2])[0]
self.num_sidebar_pages = struct.unpack('>H', r[38:38+2])[0]
self.first_sidebar_page = struct.unpack('>H', r[36:36+2])[0]
# self.num_bookinfo_pages = struct.unpack('>H', r[34:34+2])[0]
# self.first_bookinfo_page = struct.unpack('>H', r[32:32+2])[0]
# self.num_chapter_pages = struct.unpack('>H', r[22:22+2])[0]
# self.first_chapter_page = struct.unpack('>H', r[20:20+2])[0]
# self.num_link_pages = struct.unpack('>H', r[30:30+2])[0]
# self.first_link_page = struct.unpack('>H', r[28:28+2])[0]
# self.num_xtextsize_pages = struct.unpack('>H', r[54:54+2])[0]
# self.first_xtextsize_page = struct.unpack('>H', r[52:52+2])[0]
# **before** data record 1 was decrypted and unshuffled, it contained data
# to create an XOR table and which is used to fix footnote record 0, link records, chapter records, etc
@ -398,18 +402,18 @@ class EreaderProcessor(object):
self.xortable_size = struct.unpack('>H', r[42:42+2])[0]
self.xortable = self.data[self.xortable_offset:self.xortable_offset + self.xortable_size]
else:
self.num_chapter_pages = 0
self.num_link_pages = 0
self.num_bookinfo_pages = 0
self.num_footnote_pages = 0
self.num_xtextsize_pages = 0
self.num_sidebar_pages = 0
self.first_chapter_page = -1
self.first_link_page = -1
self.first_bookinfo_page = -1
self.first_footnote_page = -1
self.first_xtextsize_page = -1
self.first_sidebar_page = -1
# self.num_bookinfo_pages = 0
# self.num_chapter_pages = 0
# self.num_link_pages = 0
# self.num_xtextsize_pages = 0
# self.first_bookinfo_page = -1
# self.first_chapter_page = -1
# self.first_link_page = -1
# self.first_xtextsize_page = -1
logging.debug('self.num_text_pages %d', self.num_text_pages)
logging.debug('self.num_footnote_pages %d, self.first_footnote_page %d', self.num_footnote_pages , self.first_footnote_page)
@ -446,46 +450,60 @@ class EreaderProcessor(object):
data = sect[62:]
return sanitizeFileName(name), data
def getChapterNamePMLOffsetData(self):
cv = ''
if self.num_chapter_pages > 0:
for i in xrange(self.num_chapter_pages):
chaps = self.section_reader(self.first_chapter_page + i)
j = i % self.xortable_size
offname = deXOR(chaps, j, self.xortable)
offset = struct.unpack('>L', offname[0:4])[0]
name = offname[4:].strip('\0')
cv += '%d,%s\n' % (offset, name)
return cv
def cleanPML(self,pml):
# Update old \b font tag with correct \B bold font tag
pml2 = pml.replace('\\b', '\\B')
# Convert special characters to proper PML code. High ASCII start at (\x82, \a130) and go up to (\xff, \a255)
for k in xrange(130,256):
# a2b_hex takes in a hexidecimal as a string and converts it
# to a binary ascii code that we search and replace for
badChar=binascii.a2b_hex('%02x' % k)
pml2 = pml2.replace(badChar, '\\a%03d' % k)
#end for k
return pml2
def getLinkNamePMLOffsetData(self):
lv = ''
if self.num_link_pages > 0:
for i in xrange(self.num_link_pages):
links = self.section_reader(self.first_link_page + i)
j = i % self.xortable_size
offname = deXOR(links, j, self.xortable)
offset = struct.unpack('>L', offname[0:4])[0]
name = offname[4:].strip('\0')
lv += '%d,%s\n' % (offset, name)
return lv
# def getChapterNamePMLOffsetData(self):
# cv = ''
# if self.num_chapter_pages > 0:
# for i in xrange(self.num_chapter_pages):
# chaps = self.section_reader(self.first_chapter_page + i)
# j = i % self.xortable_size
# offname = deXOR(chaps, j, self.xortable)
# offset = struct.unpack('>L', offname[0:4])[0]
# name = offname[4:].strip('\0')
# cv += '%d|%s\n' % (offset, name)
# return cv
def getExpandedTextSizesData(self):
ts = ''
if self.num_xtextsize_pages > 0:
tsize = deXOR(self.section_reader(self.first_xtextsize_page), 0, self.xortable)
for i in xrange(self.num_text_pages):
xsize = struct.unpack('>H', tsize[0:2])[0]
ts += "%d\n" % xsize
tsize = tsize[2:]
return ts
# def getLinkNamePMLOffsetData(self):
# lv = ''
# if self.num_link_pages > 0:
# for i in xrange(self.num_link_pages):
# links = self.section_reader(self.first_link_page + i)
# j = i % self.xortable_size
# offname = deXOR(links, j, self.xortable)
# offset = struct.unpack('>L', offname[0:4])[0]
# name = offname[4:].strip('\0')
# lv += '%d|%s\n' % (offset, name)
# return lv
def getBookInfo(self):
bkinfo = ''
if self.num_bookinfo_pages > 0:
info = self.section_reader(self.first_bookinfo_page)
bkinfo = deXOR(info, 0, self.xortable)
return bkinfo
# def getExpandedTextSizesData(self):
# ts = ''
# if self.num_xtextsize_pages > 0:
# tsize = deXOR(self.section_reader(self.first_xtextsize_page), 0, self.xortable)
# for i in xrange(self.num_text_pages):
# xsize = struct.unpack('>H', tsize[0:2])[0]
# ts += "%d\n" % xsize
# tsize = tsize[2:]
# return ts
# def getBookInfo(self):
# bkinfo = ''
# if self.num_bookinfo_pages > 0:
# info = self.section_reader(self.first_bookinfo_page)
# bkinfo = deXOR(info, 0, self.xortable)
# bkinfo = bkinfo.replace('\0','|')
# bkinfo += '\n'
# return bkinfo
def getText(self):
des = Des(fixKey(self.content_key))
@ -496,324 +514,52 @@ class EreaderProcessor(object):
# now handle footnotes pages
if self.num_footnote_pages > 0:
r += '\n'
# the record 0 of the footnote section must pass through the Xor Table to make it useful
sect = self.section_reader(self.first_footnote_page)
fnote_ids = deXOR(sect, 0, self.xortable)
# the remaining records of the footnote sections need to be decoded with the content_key and zlib inflated
des = Des(fixKey(self.content_key))
r += '\\w="100%"'
r += '\\pFootnotes:\n\n'
for i in xrange(1,self.num_footnote_pages):
logging.debug('get footnotepage %d', i)
id_len = ord(fnote_ids[2])
id = fnote_ids[3:3+id_len]
fmarker='\\t\\Q="footnote-%s"' % id
r+=fmarker
r += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
r += '\\t\n\n'
fmarker = '<footnote id="%s">\n' % id
fmarker += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
fmarker += '\n</footnote>\n'
r += fmarker
fnote_ids = fnote_ids[id_len+4:]
# according to ereader pml spec we should be outputing the following xml for each footnote - but then we would have to handle
# parsing it back in to convert it since that xml is not valid xhtml
# fmarker = '<footnote id="footnote-%s">\n' % id
# fmarker += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
# fmarker += '\n</footnote>\n'
# r += fmarker
# now handle sidebar pages
if self.num_sidebar_pages > 0:
r += '\n'
# the record 0 of the sidebar section must pass through the Xor Table to make it useful
sect = self.section_reader(self.first_sidebar_page)
sbar_ids = deXOR(sect, 0, self.xortable)
# the remaining records of the sidebar sections need to be decoded with the content_key and zlib inflated
des = Des(fixKey(self.content_key))
r += '\\w="100%"'
r += '\\pSidebars:\n\n'
for i in xrange(1,self.num_sidebar_pages):
id_len = ord(sbar_ids[2])
id = sbar_ids[3:3+id_len]
smarker='\\t\\Q="sidebar-%s"' % id
r+=smarker
r += zlib.decompress(des.decrypt(self.section_reader(self.first_sidebar_page + i)))
r += '\\t\n\n'
smarker = '<sidebar id="%s">\n' % id
smarker += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
smarker += '\n</sidebar>\n'
r += smarker
sbar_ids = sbar_ids[id_len+4:]
# according to ereader pml spec we should be outputing the following xml for each sidebar - but then we would have to handle
# parsing it back in to convert it since that xml is not valid xhtml
# smarker = '<sidebar id="sidebar-%s">\n' % id
# smarker += zlib.decompress(des.decrypt(self.section_reader(self.first_footnote_page + i)))
# smarker += '\n</sidebar>\n'
# r += smarker
return r
class PmlConverter(object):
def __init__(self, s, bkinfo):
def findPrevStartofLine(src,p,n):
# find last end of previous line in substring from p to n
b1 = src.rfind('\n',p,n)
b2 = src.rfind('\\c',p,n)
b3 = src.rfind('\\r',p,n)
b4 = src.rfind('\\x',p,n)
b5 = src.rfind('\\p',p,n)
b = max(b1, b2, b3, b4, b5)
if b == -1:
return n
if b == b1:
return b + 1
return b + 2
def markHangingIndents(src):
r = ''
p = 0
while True:
if p > len(src):
return r
n = src.find('\\t', p)
if n == -1:
r += src[p:]
return r
pc = findPrevStartofLine(src,p,n)
if pc == n :
# \t tag is at start of line so indent block will work
end = src.find('\\t',n+2)
if end == -1:
end = n
r += src[p:end+2]
p = end + 2
else :
# \t tag not at start of line so hanging indent case
# recode \t to pseudo \h tags and move it to start of this line
# and recode its close as well
r += src[p:pc] + '\\h' + src[pc:n]
end = src.find('\\t',n+2)
if end == -1:
end = n+2
r += src[n+2:end] + '\\h'
p = end + 2
self.s = markHangingIndents(s)
# file(os.path.join("./pseudo.pml"), 'wb').write(self.s)
self.pos = 0
self.bkinfo = bkinfo
def nextOptAttr(self):
p = self.pos
if self.s[p:p+2] != '="':
return None
r = ''
p += 2
while self.s[p] != '"':
r += self.s[p]
p += 1
self.pos = p + 1
return r
def next(self):
p = self.pos
if p >= len(self.s):
return None
if self.s[p] != '\\':
res = self.s.find('\\', p)
if res == -1:
res = len(self.s)
self.pos = res
return self.s[p : res], None, None
c = self.s[p+1]
# add in support for new pseudo tag \\h
if c in 'pxcriuovthnsblBk-lI\\d':
self.pos = p + 2
return None, c, None
if c in 'TwmqQ':
self.pos = p + 2
return None, c, self.nextOptAttr()
if c == 'a':
self.pos = p + 5
return None, c, int(self.s[p+2:p+5])
if c == 'U':
self.pos = p + 6
return None, c, int(self.s[p+2:p+6], 16)
c = self.s[p+1:p+1+2]
if c in ('X0','X1','X2','X3','X4','Sp','Sb'):
self.pos = p + 3
return None, c, None
if c in ('C0','C1','C2','C3','C4','Fn','Sd'):
self.pos = p + 3
return None, c, self.nextOptAttr()
print "unknown escape code %s" % c
self.pos = p + 1
return None, None, None
def LinePrinter(link):
return '<hr width="%s" />\n' % link
def LinkPrinter(link):
return '<a href="%s">' % link
def FootnoteLinkPrinter(link):
return '<a href="#footnote-%s">' % link
def SidebarLinkPrinter(link):
return '<a href="#sidebar-%s">' % link
def NotSupported(link):
raise NotImplemented()
def IndentPercent(link):
return '<span style="padding-left: %s%%;"></span>' %link
def NormalFont(link):
print "Nonfatal Error: NormalFont not implemented."
return '<!-- NormalFont %s -->' %link
def StdFont(link):
print "Nonfatal Error: StdFont not implemented."
return '<!-- StdFont: %s -->' %link
# See http://wiki.mobileread.com/wiki/PML#Palm_Markup_Language
html_tags = {
'c' : ('<div class="center">', '</div>'),
'r' : ('<div class="right">', '</div>'),
'i' : ('<i>', '</i>'),
'u' : ('<span class="under">', '</span>'),
'b' : ('<strong>', '</strong>'),
'B' : ('<strong>', '</strong>'),
'o' : ('<del>', '</del>'),
'v' : ('<!-- ', ' -->'),
't' : ('<div class="indent">','</div>'),
'h' : ('<div class="hang">','</div>'), # pseudo-tag created to handle hanging indent cases
'Sb' : ('<sub>', '</sub>'),
'Sp' : ('<sup>', '</sup>'),
'X0' : ('<h1>', '</h1>'),
'X1' : ('<h2>', '</h2>'),
'X2' : ('<h3>', '</h3>'),
'X3' : ('<h4>', '</h4>'),
'X4' : ('<h5>', '</h5>'),
'l' : ('<span class="big">', '</span>'),
'q' : (LinkPrinter, '</a>'),
'Fn' : (FootnoteLinkPrinter, '</a>'),
'Sd' : (SidebarLinkPrinter, '</a>'),
'w' : (LinePrinter, ''),
#'m' : handled in if block,
#'Q' : handled in if block,
#'a' : handled in if block,
#'U' : handled in if block,
'x' : ('<h1 class="breakbefore">', '</h1>'),
#'C0' : handled in if block,
#'C1' : handled in if block,
#'C2' : handled in if block,
#'C3' : handled in if block,
#'C4' : handled in if block,
'T' : (IndentPercent, ''),
'n' : (NormalFont, ''),
's' : ('', ''),
'k' : ('<span class="small">', '</span>'),
'I' : ('<i>', '</i>'), # according to calibre - all ereader does is italicize the index entries
}
html_one_tags = {
'p' : '<p class="breakafter">&nbsp;</p>\n',
'\\': '\\',
'-' : '&shy;',
}
pml_chars = {
160 : '&nbsp;',130 : '&#8212;',131: '&#402;',132: '&#8222;',
133: '&#8230;',134: '&#8224;',135: '&#8225;',138: '&#352;',
139: '&#8249;',140: '&#338;',145: '&#8216;',146: '&#8217;',
147: '&#8220;',148: '&#8221;',149: '&#8226;',150: '&#8211;',
151: '&#8212;',153: '&#8482;',154: '&#353;',155: '&#8250;',
156: '&#339;',159: '&#376;'
}
def process(self):
final = '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">\n'
final += '<html>\n<head>\n<meta http-equiv="content-type" content="text/html; charset=windows-1252">\n'
if len(self.bkinfo) > 0:
title, author, copyright, publisher, isbn = self.bkinfo.split('\0',4)
isbn = isbn.strip('\0')
final += '<meta name="Title" content="%s"/>\n' % title
final += '<meta name="Author" content="%s"/>\n' % author
final += '<meta name="Copyright" content="%s"/>\n' % copyright
final += '<meta name="Publisher" content="%s"/>\n' % publisher
final += '<meta name="ISBN" content="%s"/>\n' % isbn
final += '<style type="text/css">\n'
final += 'div.center { text-align:center; }\n'
final += 'div.right { text-align:right; }\n'
final += 'div.indent { margin-left: 5%; }\n'
final += 'div.hang { text-indent: -5%; margin-left: 5%; }\n'
final += 'span.big { font-size: 175%; }\n'
final += 'span.small { font-size: 50%; }\n'
final += 'span.under { text-decoration: underline; }\n'
final += '.breakbefore { page-break-before: always; }\n'
final += '.breakafter { page-break-after: always; }\n'
final += '</style>\n'
final += '</head><body>\n'
in_tags = []
def makeText(s):
s = s.replace('&', '&amp;')
#s = s.replace('"', '&quot;')
s = s.replace('<', '&lt;')
s = s.replace('>', '&gt;')
s = s.replace('\n', '<br />\n')
return s
while True:
r = self.next()
if not r:
break
text, cmd, attr = r
if text:
final += makeText(text)
if cmd:
def getTag(ti, end):
cmd, attr = ti
r = self.html_tags[cmd][end]
if type(r) != str:
r = r(attr)
return r
if cmd in self.html_tags:
pair = (cmd, attr)
if cmd not in [a for (a,b) in in_tags]:
final += getTag(pair, False)
in_tags.append(pair)
else:
j = len(in_tags)
while True:
j = j - 1
final += getTag(in_tags[j], True)
if in_tags[j][0] == cmd:
break
del in_tags[j]
while j < len(in_tags):
final += getTag(in_tags[j], False)
j = j + 1
if cmd in self.html_one_tags:
final += self.html_one_tags[cmd]
if cmd == 'm':
unquotedimagepath = "images/" + attr
imagepath = urllib.quote( unquotedimagepath )
final += '<img src="%s" alt="">' % imagepath
if cmd == 'Q':
final += '<span id="%s"> </span>' % attr
if cmd == 'C0':
final += '<!-- ContentsList "%s" -->' % attr
if cmd == 'C1':
final += '<!-- ContentsList " %s" -->' % attr
if cmd == 'C2':
final += '<!-- ContentsList " %s" -->' % attr
if cmd == 'C3':
final += '<!-- ContentsList " %s" -->' % attr
if cmd == 'C4':
final += '<!-- ContentsList " %s" -->' % attr
if cmd == 'a':
final += self.pml_chars.get(attr, '&#%d;' % attr)
if cmd == 'U':
final += '&#%d;' % attr
final += '</body></html>\n'
# while True:
# s = final.replace('<br />\n<br />\n<br />\n', '<br />\n<br />\n')
# if s == final:
# break
# final = s
s = final.replace('</div><br />','</div>\n')
final = s
return final
def convertEreaderToHtml(infile, name, cc, outdir):
def convertEreaderToPml(infile, name, cc, outdir):
if not os.path.exists(outdir):
os.makedirs(outdir)
print " Decoding File"
sect = Sectionizer(infile, 'PNRdPPrs')
er = EreaderProcessor(sect.loadSection, name, cc)
if er.getNumImages() > 0:
imagedir = "images/"
print " Extracting images"
imagedir = bookname + '_img/'
imagedirpath = os.path.join(outdir,imagedir)
if not os.path.exists(imagedirpath):
os.makedirs(imagedirpath)
@ -821,24 +567,15 @@ def convertEreaderToHtml(infile, name, cc, outdir):
name, contents = er.getImage(i)
file(os.path.join(imagedirpath, name), 'wb').write(contents)
print " Extracting pml"
pml_string = er.getText()
pmlfilename = bookname + ".pml"
file(os.path.join(outdir, pmlfilename),'wb').write(pml_string)
bkinfo = er.getBookInfo()
pml = PmlConverter(pml_string, bkinfo)
htmlfilename = bookname + ".html"
file(os.path.join(outdir, htmlfilename),'wb').write(pml.process())
# ts = er.getExpandedTextSizesData()
# file(os.path.join(outdir, 'xtextsizes.dat'), 'wb').write(ts)
cv = er.getChapterNamePMLOffsetData()
file(os.path.join(outdir, 'chapters.dat'), 'wb').write(cv)
# lv = er.getLinkNamePMLOffsetData()
# file(os.path.join(outdir, 'links.dat'), 'wb').write(lv)
# bkinfo = er.getBookInfo()
# if bkinfo != '':
# print " Extracting book meta information"
# file(os.path.join(outdir, 'bookinfo.txt'),'wb').write(bkinfo)
def main(argv=None):
@ -846,12 +583,12 @@ def main(argv=None):
if argv is None:
argv = sys.argv
print "eReader2Html v%s. Copyright (c) 2008 The Dark Reverser" % __version__
print "eRdr2Pml v%s. Copyright (c) 2009 The Dark Reverser" % __version__
if len(argv)!=4 and len(argv)!=5:
print "Converts DRMed eReader books to PML Source and HTML"
print "Converts DRMed eReader books to PML Source"
print "Usage:"
print " ereader2html infile.pdb [outdir] \"your name\" credit_card_number "
print " erdr2pml infile.pdb [outdir] \"your name\" credit_card_number "
print "Note:"
print " if ommitted, outdir defaults based on 'infile.pdb'"
print " It's enough to enter the last 8 digits of the credit card number"
@ -867,7 +604,7 @@ def main(argv=None):
print "Processing..."
import time
start_time = time.time()
convertEreaderToHtml(infile, name, cc, outdir)
convertEreaderToPml(infile, name, cc, outdir)
end_time = time.time()
search_time = end_time - start_time
print 'elapsed time: %.2f seconds' % (search_time, )

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eReader_Tools/lib/xpml2xhtml.py
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