440 lines
20 KiB
Python
440 lines
20 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
|
|
|
|
from __future__ import unicode_literals, division, absolute_import, print_function
|
|
|
|
from .compatibility_utils import PY2, utf8_str
|
|
|
|
if PY2:
|
|
range = xrange
|
|
|
|
import re
|
|
# note: re requites the pattern to be the exact same type as the data to be searched in python3
|
|
# but u"" is not allowed for the pattern itself only b""
|
|
|
|
from .mobi_utils import fromBase32
|
|
|
|
class HTMLProcessor:
|
|
|
|
def __init__(self, files, metadata, rscnames):
|
|
self.files = files
|
|
self.metadata = metadata
|
|
self.rscnames = rscnames
|
|
# for original style mobis, default to including all image files in the opf manifest
|
|
self.used = {}
|
|
for name in rscnames:
|
|
self.used[name] = 'used'
|
|
|
|
def findAnchors(self, rawtext, indx_data, positionMap):
|
|
# process the raw text
|
|
# find anchors...
|
|
print("Find link anchors")
|
|
link_pattern = re.compile(br'''<[^<>]+filepos=['"]{0,1}(\d+)[^<>]*>''', re.IGNORECASE)
|
|
# TEST NCX: merge in filepos from indx
|
|
pos_links = [int(m.group(1)) for m in link_pattern.finditer(rawtext)]
|
|
if indx_data:
|
|
pos_indx = [e['pos'] for e in indx_data if e['pos']>0]
|
|
pos_links = list(set(pos_links + pos_indx))
|
|
|
|
for position in pos_links:
|
|
if position in positionMap:
|
|
positionMap[position] = positionMap[position] + utf8_str('<a id="filepos%d" />' % position)
|
|
else:
|
|
positionMap[position] = utf8_str('<a id="filepos%d" />' % position)
|
|
|
|
# apply dictionary metadata and anchors
|
|
print("Insert data into html")
|
|
pos = 0
|
|
lastPos = len(rawtext)
|
|
dataList = []
|
|
for end in sorted(positionMap.keys()):
|
|
if end == 0 or end > lastPos:
|
|
continue # something's up - can't put a tag in outside <html>...</html>
|
|
dataList.append(rawtext[pos:end])
|
|
dataList.append(positionMap[end])
|
|
pos = end
|
|
dataList.append(rawtext[pos:])
|
|
srctext = b"".join(dataList)
|
|
rawtext = None
|
|
dataList = None
|
|
self.srctext = srctext
|
|
self.indx_data = indx_data
|
|
return srctext
|
|
|
|
def insertHREFS(self):
|
|
srctext = self.srctext
|
|
rscnames = self.rscnames
|
|
metadata = self.metadata
|
|
|
|
# put in the hrefs
|
|
print("Insert hrefs into html")
|
|
# There doesn't seem to be a standard, so search as best as we can
|
|
|
|
link_pattern = re.compile(br'''<a([^>]*?)filepos=['"]{0,1}0*(\d+)['"]{0,1}([^>]*?)>''', re.IGNORECASE)
|
|
srctext = link_pattern.sub(br'''<a\1href="#filepos\2"\3>''', srctext)
|
|
|
|
# remove empty anchors
|
|
print("Remove empty anchors from html")
|
|
srctext = re.sub(br"<a\s*/>",br"", srctext)
|
|
srctext = re.sub(br"<a\s*>\s*</a>",br"", srctext)
|
|
|
|
# convert image references
|
|
print("Insert image references into html")
|
|
# split string into image tag pieces and other pieces
|
|
image_pattern = re.compile(br'''(<img.*?>)''', re.IGNORECASE)
|
|
image_index_pattern = re.compile(br'''recindex=['"]{0,1}([0-9]+)['"]{0,1}''', re.IGNORECASE)
|
|
srcpieces = image_pattern.split(srctext)
|
|
srctext = self.srctext = None
|
|
|
|
# all odd pieces are image tags (nulls string on even pieces if no space between them in srctext)
|
|
for i in range(1, len(srcpieces), 2):
|
|
tag = srcpieces[i]
|
|
for m in image_index_pattern.finditer(tag):
|
|
imageNumber = int(m.group(1))
|
|
imageName = rscnames[imageNumber-1]
|
|
if imageName is None:
|
|
print("Error: Referenced image %s was not recognized as a valid image" % imageNumber)
|
|
else:
|
|
replacement = b'src="Images/' + utf8_str(imageName) + b'"'
|
|
tag = image_index_pattern.sub(replacement, tag, 1)
|
|
srcpieces[i] = tag
|
|
srctext = b"".join(srcpieces)
|
|
|
|
# add in character set meta into the html header if needed
|
|
if 'Codec' in metadata:
|
|
srctext = srctext[0:12]+b'<meta http-equiv="content-type" content="text/html; charset='+utf8_str(metadata.get('Codec')[0])+b'" />'+srctext[12:]
|
|
return srctext, self.used
|
|
|
|
|
|
class XHTMLK8Processor:
|
|
|
|
def __init__(self, rscnames, k8proc):
|
|
self.rscnames = rscnames
|
|
self.k8proc = k8proc
|
|
self.used = {}
|
|
|
|
def buildXHTML(self):
|
|
|
|
# first need to update all links that are internal which
|
|
# are based on positions within the xhtml files **BEFORE**
|
|
# cutting and pasting any pieces into the xhtml text files
|
|
|
|
# kindle:pos:fid:XXXX:off:YYYYYYYYYY (used for internal link within xhtml)
|
|
# XXXX is the offset in records into divtbl
|
|
# YYYYYYYYYYYY is a base32 number you add to the divtbl insertpos to get final position
|
|
|
|
# pos:fid pattern
|
|
posfid_pattern = re.compile(br'''(<a.*?href=.*?>)''', re.IGNORECASE)
|
|
posfid_index_pattern = re.compile(br'''['"]kindle:pos:fid:([0-9|A-V]+):off:([0-9|A-V]+).*?["']''')
|
|
|
|
parts = []
|
|
print("Building proper xhtml for each file")
|
|
for i in range(self.k8proc.getNumberOfParts()):
|
|
part = self.k8proc.getPart(i)
|
|
[partnum, dir, filename, beg, end, aidtext] = self.k8proc.getPartInfo(i)
|
|
|
|
# internal links
|
|
srcpieces = posfid_pattern.split(part)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<'):
|
|
for m in posfid_index_pattern.finditer(tag):
|
|
posfid = m.group(1)
|
|
offset = m.group(2)
|
|
filename, idtag = self.k8proc.getIDTagByPosFid(posfid, offset)
|
|
if idtag == b'':
|
|
replacement= b'"' + utf8_str(filename) + b'"'
|
|
else:
|
|
replacement = b'"' + utf8_str(filename) + b'#' + idtag + b'"'
|
|
tag = posfid_index_pattern.sub(replacement, tag, 1)
|
|
srcpieces[j] = tag
|
|
part = b"".join(srcpieces)
|
|
parts.append(part)
|
|
|
|
# we are free to cut and paste as we see fit
|
|
# we can safely remove all of the Kindlegen generated aid tags
|
|
# change aid ids that are in k8proc.linked_aids to xhtml ids
|
|
find_tag_with_aid_pattern = re.compile(br'''(<[^>]*\said\s*=[^>]*>)''', re.IGNORECASE)
|
|
within_tag_aid_position_pattern = re.compile(br'''\said\s*=['"]([^'"]*)['"]''')
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
srcpieces = find_tag_with_aid_pattern.split(part)
|
|
for j in range(len(srcpieces)):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<'):
|
|
for m in within_tag_aid_position_pattern.finditer(tag):
|
|
try:
|
|
aid = m.group(1)
|
|
except IndexError:
|
|
aid = None
|
|
replacement = b''
|
|
if aid in self.k8proc.linked_aids:
|
|
replacement = b' id="aid-' + aid + b'"'
|
|
tag = within_tag_aid_position_pattern.sub(replacement, tag, 1)
|
|
srcpieces[j] = tag
|
|
part = b"".join(srcpieces)
|
|
parts[i] = part
|
|
|
|
# we can safely replace all of the Kindlegen generated data-AmznPageBreak tags
|
|
# with page-break-after style patterns
|
|
find_tag_with_AmznPageBreak_pattern = re.compile(br'''(<[^>]*\sdata-AmznPageBreak=[^>]*>)''', re.IGNORECASE)
|
|
within_tag_AmznPageBreak_position_pattern = re.compile(br'''\sdata-AmznPageBreak=['"]([^'"]*)['"]''')
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
srcpieces = find_tag_with_AmznPageBreak_pattern.split(part)
|
|
for j in range(len(srcpieces)):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<'):
|
|
srcpieces[j] = within_tag_AmznPageBreak_position_pattern.sub(
|
|
lambda m:b' style="page-break-after:' + m.group(1) + b'"', tag)
|
|
part = b"".join(srcpieces)
|
|
parts[i] = part
|
|
|
|
# we have to handle substitutions for the flows pieces first as they may
|
|
# be inlined into the xhtml text
|
|
# kindle:embed:XXXX?mime=image/gif (png, jpeg, etc) (used for images)
|
|
# kindle:flow:XXXX?mime=YYYY/ZZZ (used for style sheets, svg images, etc)
|
|
# kindle:embed:XXXX (used for fonts)
|
|
|
|
flows = []
|
|
flows.append(None)
|
|
flowinfo = []
|
|
flowinfo.append([None, None, None, None])
|
|
|
|
# regular expression search patterns
|
|
img_pattern = re.compile(br'''(<[img\s|image\s][^>]*>)''', re.IGNORECASE)
|
|
img_index_pattern = re.compile(br'''[('"]kindle:embed:([0-9|A-V]+)[^'"]*['")]''', re.IGNORECASE)
|
|
|
|
tag_pattern = re.compile(br'''(<[^>]*>)''')
|
|
flow_pattern = re.compile(br'''['"]kindle:flow:([0-9|A-V]+)\?mime=([^'"]+)['"]''', re.IGNORECASE)
|
|
|
|
url_pattern = re.compile(br'''(url\(.*?\))''', re.IGNORECASE)
|
|
url_img_index_pattern = re.compile(br'''[('"]kindle:embed:([0-9|A-V]+)\?mime=image/[^\)]*["')]''', re.IGNORECASE)
|
|
font_index_pattern = re.compile(br'''[('"]kindle:embed:([0-9|A-V]+)["')]''', re.IGNORECASE)
|
|
url_css_index_pattern = re.compile(br'''kindle:flow:([0-9|A-V]+)\?mime=text/css[^\)]*''', re.IGNORECASE)
|
|
url_svg_image_pattern = re.compile(br'''kindle:flow:([0-9|A-V]+)\?mime=image/svg\+xml[^\)]*''', re.IGNORECASE)
|
|
|
|
for i in range(1, self.k8proc.getNumberOfFlows()):
|
|
[ftype, format, dir, filename] = self.k8proc.getFlowInfo(i)
|
|
flowpart = self.k8proc.getFlow(i)
|
|
|
|
# links to raster image files from image tags
|
|
# image_pattern
|
|
srcpieces = img_pattern.split(flowpart)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<im'):
|
|
for m in img_index_pattern.finditer(tag):
|
|
imageNumber = fromBase32(m.group(1))
|
|
imageName = self.rscnames[imageNumber-1]
|
|
if imageName is not None:
|
|
replacement = b'"../Images/' + utf8_str(imageName) + b'"'
|
|
self.used[imageName] = 'used'
|
|
tag = img_index_pattern.sub(replacement, tag, 1)
|
|
else:
|
|
print("Error: Referenced image %s was not recognized as a valid image in %s" % (imageNumber, tag))
|
|
srcpieces[j] = tag
|
|
flowpart = b"".join(srcpieces)
|
|
|
|
# replacements inside css url():
|
|
srcpieces = url_pattern.split(flowpart)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
|
|
# process links to raster image files
|
|
for m in url_img_index_pattern.finditer(tag):
|
|
imageNumber = fromBase32(m.group(1))
|
|
imageName = self.rscnames[imageNumber-1]
|
|
osep = m.group()[0:1]
|
|
csep = m.group()[-1:]
|
|
if imageName is not None:
|
|
replacement = osep + b'../Images/' + utf8_str(imageName) + csep
|
|
self.used[imageName] = 'used'
|
|
tag = url_img_index_pattern.sub(replacement, tag, 1)
|
|
else:
|
|
print("Error: Referenced image %s was not recognized as a valid image in %s" % (imageNumber, tag))
|
|
|
|
# process links to fonts
|
|
for m in font_index_pattern.finditer(tag):
|
|
fontNumber = fromBase32(m.group(1))
|
|
fontName = self.rscnames[fontNumber-1]
|
|
osep = m.group()[0:1]
|
|
csep = m.group()[-1:]
|
|
if fontName is None:
|
|
print("Error: Referenced font %s was not recognized as a valid font in %s" % (fontNumber, tag))
|
|
else:
|
|
replacement = osep + b'../Fonts/' + utf8_str(fontName) + csep
|
|
tag = font_index_pattern.sub(replacement, tag, 1)
|
|
self.used[fontName] = 'used'
|
|
|
|
# process links to other css pieces
|
|
for m in url_css_index_pattern.finditer(tag):
|
|
num = fromBase32(m.group(1))
|
|
[typ, fmt, pdir, fnm] = self.k8proc.getFlowInfo(num)
|
|
replacement = b'"../' + utf8_str(pdir) + b'/' + utf8_str(fnm) + b'"'
|
|
tag = url_css_index_pattern.sub(replacement, tag, 1)
|
|
self.used[fnm] = 'used'
|
|
|
|
# process links to svg images
|
|
for m in url_svg_image_pattern.finditer(tag):
|
|
num = fromBase32(m.group(1))
|
|
[typ, fmt, pdir, fnm] = self.k8proc.getFlowInfo(num)
|
|
replacement = b'"../' + utf8_str(pdir) + b'/' + utf8_str(fnm) + b'"'
|
|
tag = url_svg_image_pattern.sub(replacement, tag, 1)
|
|
self.used[fnm] = 'used'
|
|
|
|
srcpieces[j] = tag
|
|
flowpart = b"".join(srcpieces)
|
|
|
|
# store away in our own copy
|
|
flows.append(flowpart)
|
|
|
|
# I do not think this case exists and even if it does exist, it needs to be done in a separate
|
|
# pass to prevent inlining a flow piece into another flow piece before the inserted one or the
|
|
# target one has been fully processed
|
|
|
|
# but keep it around if it ends up we do need it
|
|
|
|
# flow pattern not inside url()
|
|
# srcpieces = tag_pattern.split(flowpart)
|
|
# for j in range(1, len(srcpieces),2):
|
|
# tag = srcpieces[j]
|
|
# if tag.startswith(b'<'):
|
|
# for m in flow_pattern.finditer(tag):
|
|
# num = fromBase32(m.group(1))
|
|
# [typ, fmt, pdir, fnm] = self.k8proc.getFlowInfo(num)
|
|
# flowtext = self.k8proc.getFlow(num)
|
|
# if fmt == b'inline':
|
|
# tag = flowtext
|
|
# else:
|
|
# replacement = b'"../' + utf8_str(pdir) + b'/' + utf8_str(fnm) + b'"'
|
|
# tag = flow_pattern.sub(replacement, tag, 1)
|
|
# self.used[fnm] = 'used'
|
|
# srcpieces[j] = tag
|
|
# flowpart = b"".join(srcpieces)
|
|
|
|
# now handle the main text xhtml parts
|
|
|
|
# Handle the flow items in the XHTML text pieces
|
|
# kindle:flow:XXXX?mime=YYYY/ZZZ (used for style sheets, svg images, etc)
|
|
tag_pattern = re.compile(br'''(<[^>]*>)''')
|
|
flow_pattern = re.compile(br'''['"]kindle:flow:([0-9|A-V]+)\?mime=([^'"]+)['"]''', re.IGNORECASE)
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
[partnum, dir, filename, beg, end, aidtext] = self.k8proc.partinfo[i]
|
|
# flow pattern
|
|
srcpieces = tag_pattern.split(part)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<'):
|
|
for m in flow_pattern.finditer(tag):
|
|
num = fromBase32(m.group(1))
|
|
if num > 0 and num < len(self.k8proc.flowinfo):
|
|
[typ, fmt, pdir, fnm] = self.k8proc.getFlowInfo(num)
|
|
flowpart = flows[num]
|
|
if fmt == b'inline':
|
|
tag = flowpart
|
|
else:
|
|
replacement = b'"../' + utf8_str(pdir) + b'/' + utf8_str(fnm) + b'"'
|
|
tag = flow_pattern.sub(replacement, tag, 1)
|
|
self.used[fnm] = 'used'
|
|
else:
|
|
print("warning: ignoring non-existent flow link", tag, " value 0x%x" % num)
|
|
srcpieces[j] = tag
|
|
part = b''.join(srcpieces)
|
|
|
|
# store away modified version
|
|
parts[i] = part
|
|
|
|
# Handle any embedded raster images links in style= attributes urls
|
|
style_pattern = re.compile(br'''(<[a-zA-Z0-9]+\s[^>]*style\s*=\s*[^>]*>)''', re.IGNORECASE)
|
|
img_index_pattern = re.compile(br'''[('"]kindle:embed:([0-9|A-V]+)[^'"]*['")]''', re.IGNORECASE)
|
|
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
[partnum, dir, filename, beg, end, aidtext] = self.k8proc.partinfo[i]
|
|
|
|
# replace urls in style attributes
|
|
srcpieces = style_pattern.split(part)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if b'kindle:embed' in tag:
|
|
for m in img_index_pattern.finditer(tag):
|
|
imageNumber = fromBase32(m.group(1))
|
|
imageName = self.rscnames[imageNumber-1]
|
|
osep = m.group()[0:1]
|
|
csep = m.group()[-1:]
|
|
if imageName is not None:
|
|
replacement = osep + b'../Images/'+ utf8_str(imageName) + csep
|
|
self.used[imageName] = 'used'
|
|
tag = img_index_pattern.sub(replacement, tag, 1)
|
|
else:
|
|
print("Error: Referenced image %s in style url was not recognized in %s" % (imageNumber, tag))
|
|
srcpieces[j] = tag
|
|
part = b"".join(srcpieces)
|
|
|
|
# store away modified version
|
|
parts[i] = part
|
|
|
|
# Handle any embedded raster images links in the xhtml text
|
|
# kindle:embed:XXXX?mime=image/gif (png, jpeg, etc) (used for images)
|
|
img_pattern = re.compile(br'''(<[img\s|image\s][^>]*>)''', re.IGNORECASE)
|
|
img_index_pattern = re.compile(br'''['"]kindle:embed:([0-9|A-V]+)[^'"]*['"]''')
|
|
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
[partnum, dir, filename, beg, end, aidtext] = self.k8proc.partinfo[i]
|
|
|
|
# links to raster image files
|
|
# image_pattern
|
|
srcpieces = img_pattern.split(part)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<im'):
|
|
for m in img_index_pattern.finditer(tag):
|
|
imageNumber = fromBase32(m.group(1))
|
|
imageName = self.rscnames[imageNumber-1]
|
|
if imageName is not None:
|
|
replacement = b'"../Images/' + utf8_str(imageName) + b'"'
|
|
self.used[imageName] = 'used'
|
|
tag = img_index_pattern.sub(replacement, tag, 1)
|
|
else:
|
|
print("Error: Referenced image %s was not recognized as a valid image in %s" % (imageNumber, tag))
|
|
srcpieces[j] = tag
|
|
part = b"".join(srcpieces)
|
|
# store away modified version
|
|
parts[i] = part
|
|
|
|
# finally perform any general cleanups needed to make valid XHTML
|
|
# these include:
|
|
# in svg tags replace "perserveaspectratio" attributes with "perserveAspectRatio"
|
|
# in svg tags replace "viewbox" attributes with "viewBox"
|
|
# in <li> remove value="XX" attributes since these are illegal
|
|
tag_pattern = re.compile(br'''(<[^>]*>)''')
|
|
li_value_pattern = re.compile(br'''\svalue\s*=\s*['"][^'"]*['"]''', re.IGNORECASE)
|
|
|
|
for i in range(len(parts)):
|
|
part = parts[i]
|
|
[partnum, dir, filename, beg, end, aidtext] = self.k8proc.partinfo[i]
|
|
|
|
# tag pattern
|
|
srcpieces = tag_pattern.split(part)
|
|
for j in range(1, len(srcpieces),2):
|
|
tag = srcpieces[j]
|
|
if tag.startswith(b'<svg') or tag.startswith(b'<SVG'):
|
|
tag = tag.replace(b'preserveaspectratio',b'preserveAspectRatio')
|
|
tag = tag.replace(b'viewbox',b'viewBox')
|
|
elif tag.startswith(b'<li ') or tag.startswith(b'<LI '):
|
|
tagpieces = li_value_pattern.split(tag)
|
|
tag = b"".join(tagpieces)
|
|
srcpieces[j] = tag
|
|
part = b"".join(srcpieces)
|
|
# store away modified version
|
|
parts[i] = part
|
|
|
|
self.k8proc.setFlows(flows)
|
|
self.k8proc.setParts(parts)
|
|
|
|
return self.used
|