mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-06-23 15:30:45 -04:00
Fix #1746 (Error while News downloading El Pais)
This commit is contained in:
Kovid Goyal
commit
e6fbdb4a43
@ -17,11 +17,14 @@ import logging
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import re
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import uuid
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import copy
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import mimetypes
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from lxml import etree
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from lxml import html
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import calibre
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from calibre import LoggingInterface
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from calibre.translations.dynamic import translate
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from calibre.startup import get_lang
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from calibre.ebooks.chardet import xml_to_unicode
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from calibre.ebooks.oeb.entitydefs import ENTITYDEFS
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from calibre.ebooks.metadata.epub import CoverRenderer
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from calibre.ptempfile import TemporaryDirectory
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@ -64,6 +67,7 @@ XHTML_MIME = 'application/xhtml+xml'
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CSS_MIME = 'text/css'
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NCX_MIME = 'application/x-dtbncx+xml'
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OPF_MIME = 'application/oebps-package+xml'
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PAGE_MAP_MIME = 'application/oebps-page-map+xml'
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OEB_DOC_MIME = 'text/x-oeb1-document'
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OEB_CSS_MIME = 'text/x-oeb1-css'
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OPENTYPE_MIME = 'font/opentype'
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@ -84,6 +88,7 @@ ENTITY_RE = re.compile(r'&([a-zA-Z_:][a-zA-Z0-9.-_:]+);')
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COLLAPSE_RE = re.compile(r'[ \t\r\n\v]+')
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QNAME_RE = re.compile(r'^[{][^{}]+[}][^{}]+$')
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PREFIXNAME_RE = re.compile(r'^[^:]+[:][^:]+')
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XMLDECL_RE = re.compile(r'^\s*<[?]xml.*?[?]>')
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def element(parent, *args, **kwargs):
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if parent is not None:
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@ -444,9 +449,10 @@ class Manifest(object):
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% (self.id, self.href, self.media_type)
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def _force_xhtml(self, data):
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# Possibly decode in user-specified encoding
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if self.oeb.encoding is not None:
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data = data.decode(self.oeb.encoding, 'replace')
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# Convert to Unicode and normalize line endings
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data = self.oeb.decode(data)
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data = XMLDECL_RE.sub('', data)
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data = data.replace('\r\n', '\n').replace('\r', '\n')
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# Handle broken XHTML w/ SVG (ugh)
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if 'svg:' in data and SVG_NS not in data:
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data = data.replace(
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@ -892,25 +898,71 @@ class TOC(object):
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node.to_opf1(tour)
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return tour
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def to_ncx(self, parent, order=None, depth=1):
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if not order: order = [0]
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def to_ncx(self, parent, depth=1):
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for node in self.nodes:
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order[0] += 1
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playOrder = str(order[0])
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id = self.id or 'np' + playOrder
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point = etree.SubElement(parent,
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NCX('navPoint'), id=id, playOrder=playOrder)
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id = self.id or unicode(uuid.uuid4())
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attrib = {'id': id, 'playOrder': '0'}
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if self.klass:
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point.attrib['class'] = node.klass
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attrib['class'] = node.klass
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point = element(parent, NCX('navPoint'), attrib=attrib)
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label = etree.SubElement(point, NCX('navLabel'))
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etree.SubElement(label, NCX('text')).text = node.title
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element(label, NCX('text')).text = node.title
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href = node.href if depth > 1 else urldefrag(node.href)[0]
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child = etree.SubElement(point,
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NCX('content'), attrib={'src': href})
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node.to_ncx(point, order, depth+1)
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element(point, NCX('content'), src=href)
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node.to_ncx(point, depth+1)
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return parent
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class PageList(object):
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class Page(object):
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def __init__(self, name, href, type='normal', klass=None, id=None):
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self.name = name
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self.href = urlnormalize(href)
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self.type = type
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self.id = id
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self.klass = klass
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def __init__(self):
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self.pages = []
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def add(self, name, href, type='normal', klass=None, id=None):
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page = self.Page(name, href, type, klass, id)
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self.pages.append(page)
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return page
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def __len__(self):
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return len(self.pages)
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def __iter__(self):
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for page in self.pages:
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yield node
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def __getitem__(self, index):
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return self.pages[index]
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def to_ncx(self, parent=None):
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plist = element(parent, NCX('pageList'), id=str(uuid.uuid4()))
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values = dict((t, count(1)) for t in ('front', 'normal', 'special'))
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for page in self.pages:
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id = page.id or unicode(uuid.uuid4())
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type = page.type
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value = str(values[type].next())
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attrib = {'id': id, 'value': value, 'type': type, 'playOrder': '0'}
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if page.klass:
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attrib['class'] = page.klass
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ptarget = element(plist, NCX('pageTarget'), attrib=attrib)
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label = element(ptarget, NCX('navLabel'))
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element(label, NCX('text')).text = page.name
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element(ptarget, NCX('content'), src=page.href)
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return plist
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def to_page_map(self):
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pmap = etree.Element(OPF('page-map'), nsmap={None: OPF2_NS})
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for page in self.pages:
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element(pmap, OPF('page'), name=page.name, href=page.href)
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return pmap
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class OEBBook(object):
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COVER_SVG_XP = XPath('h:body//svg:svg[position() = 1]')
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COVER_OBJECT_XP = XPath('h:body//h:object[@data][position() = 1]')
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@ -972,7 +1024,7 @@ class OEBBook(object):
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return opf
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def _metadata_from_opf(self, opf):
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uid = opf.get('unique-identifier', 'calibre-uuid')
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uid = opf.get('unique-identifier', None)
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self.uid = None
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self.metadata = metadata = Metadata(self)
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for elem in xpath(opf, '/o2:package/o2:metadata//*'):
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@ -996,8 +1048,12 @@ class OEBBook(object):
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if not haveuuid and haveid:
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bookid = "urn:uuid:%s" % str(uuid.uuid4())
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metadata.add('identifier', bookid, id='calibre-uuid')
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if uid is None:
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self.logger.warn(u'Unique-identifier not specified')
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for item in metadata.identifier:
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if item.id == uid:
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if not item.id:
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continue
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if uid is None or item.id == uid:
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self.uid = item
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break
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else:
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@ -1023,7 +1079,10 @@ class OEBBook(object):
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href = elem.get('href')
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media_type = elem.get('media-type', None)
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if media_type is None:
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media_type = elem.get('mediatype', BINARY_MIME)
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media_type = elem.get('mediatype', None)
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if media_type is None or media_type == 'text/xml':
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guessed = mimetypes.guess_type(href)[0]
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media_type = guessed or media_type or BINARY_MIME
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fallback = elem.get('fallback')
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if href in manifest.hrefs:
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self.logger.warn(u'Duplicate manifest entry for %r' % href)
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@ -1055,7 +1114,7 @@ class OEBBook(object):
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spine.add(item, False)
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if len(spine) == 0:
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raise OEBError("Spine is empty")
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def _guide_from_opf(self, opf):
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self.guide = guide = Guide(self)
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for elem in xpath(opf, '/o2:package/o2:guide/o2:reference'):
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@ -1065,49 +1124,74 @@ class OEBBook(object):
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self.logger.warn(u'Guide reference %r not found' % href)
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continue
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guide.add(elem.get('type'), elem.get('title'), href)
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def _toc_from_navpoint(self, toc, navpoint):
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def _find_ncx(self, opf):
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result = xpath(opf, '/o2:package/o2:spine/@toc')
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if result:
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id = result[0]
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if id not in self.manifest.ids:
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return None
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item = self.manifest.ids[id]
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self.manifest.remove(item)
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return item
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for item in self.manifest.values():
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if item.media_type == NCX_MIME:
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self.manifest.remove(item)
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return item
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return None
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def _toc_from_navpoint(self, item, toc, navpoint):
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children = xpath(navpoint, 'ncx:navPoint')
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for child in children:
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title = ''.join(xpath(child, 'ncx:navLabel/ncx:text/text()'))
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href = xpath(child, 'ncx:content/@src')[0]
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title = COLLAPSE_RE.sub(' ', title.strip())
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href = xpath(child, 'ncx:content/@src')
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if not title or not href:
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continue
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href = item.abshref(urlnormalize(href[0]))
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path, _ = urldefrag(href)
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if path not in self.manifest.hrefs:
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self.logger.warn('TOC reference %r not found' % href)
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continue
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id = child.get('id')
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klass = child.get('class')
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node = toc.add(title, href, id=id, klass=klass)
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self._toc_from_navpoint(node, child)
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def _toc_from_ncx(self, opf):
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result = xpath(opf, '/o2:package/o2:spine/@toc')
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if not result:
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expr = '/o2:package/o2:manifest/o2:item[@media-type="%s"]/@id'
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result = xpath(opf, expr % NCX_MIME)
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if len(result) != 1:
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return False
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id = result[0]
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if id not in self.manifest.ids:
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self._toc_from_navpoint(item, node, child)
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def _toc_from_ncx(self, item):
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if item is None:
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return False
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item = self.manifest.ids[id]
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ncx = item.data
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self.manifest.remove(item)
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title = xpath(ncx, 'ncx:docTitle/ncx:text/text()')
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title = title[0].strip() if title else unicode(self.metadata.title[0])
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title = ''.join(xpath(ncx, 'ncx:docTitle/ncx:text/text()'))
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title = COLLAPSE_RE.sub(' ', title.strip())
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title = title or unicode(self.metadata.title[0])
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self.toc = toc = TOC(title)
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navmaps = xpath(ncx, 'ncx:navMap')
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for navmap in navmaps:
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self._toc_from_navpoint(toc, navmap)
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self._toc_from_navpoint(item, toc, navmap)
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return True
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def _toc_from_tour(self, opf):
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result = xpath(opf, '/o2:package/o2:tours/o2:tour')
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result = xpath(opf, 'o2:tours/o2:tour')
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if not result:
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return False
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tour = result[0]
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self.toc = toc = TOC(tour.get('title'))
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sites = xpath(tour, 'o2:site')
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for site in sites:
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toc.add(site.get('title'), site.get('href'))
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title = site.get('title')
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href = site.get('href')
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if not title or not href:
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continue
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href = item.abshref(urlnormalize(href))
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path, _ = urldefrag(href)
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if path not in self.manifest.hrefs:
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self.logger.warn('TOC reference %r not found' % href)
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continue
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id = child.get('id')
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toc.add(title, href, id=id)
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return True
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def _toc_from_html(self, opf):
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if 'toc' not in self.guide:
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return False
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@ -1131,6 +1215,7 @@ class OEBBook(object):
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if not path:
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href = '#'.join((itempath, frag))
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title = ' '.join(xpath(anchor, './/text()'))
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title = COLLAPSE_RE.sub(' ', title.strip())
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href = urlnormalize(href)
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if href not in titles:
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order.append(href)
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@ -1146,15 +1231,17 @@ class OEBBook(object):
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for item in self.spine:
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if not item.linear: continue
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html = item.data
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title = xpath(html, '/h:html/h:head/h:title/text()')
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title = title[0].strip() if title else None
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if title: titles.append(title)
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title = ''.join(xpath(html, '/h:html/h:head/h:title/text()'))
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title = COLLAPSE_RE(' ', title.strip())
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if title:
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titles.append(title)
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headers.append('(unlabled)')
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for tag in ('h1', 'h2', 'h3', 'h4', 'h5', 'strong'):
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expr = '/h:html/h:body//h:%s[position()=1]/text()' % (tag,)
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header = xpath(html, expr)
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expr = '/h:html/h:body//h:%s[position()=1]/text()'
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header = ''.join(xpath(html % tag, expr))
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header = COLLAPSE_RE.sub(' ', header.strip())
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if header:
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headers[-1] = header[0]
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headers[-1] = header
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break
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use = titles
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if len(titles) > len(set(titles)):
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@ -1164,12 +1251,71 @@ class OEBBook(object):
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toc.add(title, item.href)
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return True
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def _toc_from_opf(self, opf):
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if self._toc_from_ncx(opf): return
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def _toc_from_opf(self, opf, item):
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if self._toc_from_ncx(item): return
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if self._toc_from_tour(opf): return
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self.logger.warn('No metadata table of contents found')
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if self._toc_from_html(opf): return
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self._toc_from_spine(opf)
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def _pages_from_ncx(self, opf, item):
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if item is None:
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return False
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ncx = item.data
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ptargets = xpath(ncx, 'ncx:pageList/ncx:pageTarget')
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if not ptargets:
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return False
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pages = self.pages = PageList()
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for ptarget in ptargets:
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name = ''.join(xpath(ptarget, 'ncx:navLabel/ncx:text/text()'))
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name = COLLAPSE_RE.sub(' ', name.strip())
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href = xpath(ptarget, 'ncx:content/@src')
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if not href:
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continue
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href = item.abshref(urlnormalize(href[0]))
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id = ptarget.get('id')
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type = ptarget.get('type', 'normal')
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klass = ptarget.get('class')
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pages.add(name, href, type=type, id=id, klass=klass)
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return True
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def _find_page_map(self, opf):
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result = xpath(opf, '/o2:package/o2:spine/@page-map')
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if result:
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id = result[0]
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if id not in self.manifest.ids:
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return None
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item = self.manifest.ids[id]
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self.manifest.remove(item)
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return item
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for item in self.manifest.values():
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if item.media_type == PAGE_MAP_MIME:
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self.manifest.remove(item)
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return item
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return None
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def _pages_from_page_map(self, opf):
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item = self._find_page_map(opf)
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if item is None:
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return False
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pmap = item.data
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pages = self.pages = PageList()
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for page in xpath(pmap, 'o2:page'):
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name = page.get('name', '')
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href = page.get('href')
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if not href:
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continue
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name = COLLAPSE_RE.sub(' ', name.strip())
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href = item.abshref(urlnormalize(href))
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pages.add(name, href)
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return True
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def _pages_from_opf(self, opf, item):
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if self._pages_from_ncx(opf, item): return
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if self._pages_from_page_map(opf): return
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self.pages = PageList()
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return
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def _cover_from_html(self, hcover):
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with TemporaryDirectory('_html_cover') as tdir:
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writer = DirWriter()
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@ -1228,7 +1374,9 @@ class OEBBook(object):
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self._manifest_from_opf(opf)
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self._spine_from_opf(opf)
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self._guide_from_opf(opf)
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self._toc_from_opf(opf)
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item = self._find_ncx(opf)
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self._toc_from_opf(opf, item)
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self._pages_from_opf(opf, item)
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self._ensure_cover_image()
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def translate(self, text):
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@ -1236,6 +1384,20 @@ class OEBBook(object):
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lang = lang.split('-', 1)[0].lower()
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return translate(lang, text)
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def decode(self, data):
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if isinstance(data, unicode):
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return data
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encodings = ['utf-8', 'utf-16']
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if self.encoding is not None:
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encodings.append(self.encoding)
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for encoding in encodings:
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try:
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return data.decode(encoding)
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except UnicodeDecodeError:
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pass
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data, _ = xml_to_unicode(data)
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return data
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def to_opf1(self):
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package = etree.Element('package',
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attrib={'unique-identifier': self.uid.id})
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@ -1249,6 +1411,34 @@ class OEBBook(object):
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guide = self.guide.to_opf1(package)
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return {OPF_MIME: ('content.opf', package)}
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def _update_playorder(self, ncx):
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hrefs = set(xpath(ncx, '//ncx:content/@src'))
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playorder = {}
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next = 1
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selector = XPath('h:body//*[@id or @name]')
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for item in self.spine:
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base = item.href
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if base in hrefs:
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playorder[base] = next
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next += 1
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for elem in selector(item.data):
|
||||
added = False
|
||||
for attr in ('id', 'name'):
|
||||
id = elem.get(attr)
|
||||
if not id:
|
||||
continue
|
||||
href = '#'.join([base, id])
|
||||
if href in hrefs:
|
||||
playorder[href] = next
|
||||
added = True
|
||||
if added:
|
||||
next += 1
|
||||
selector = XPath('ncx:content/@src')
|
||||
for elem in xpath(ncx, '//*[@playOrder and ./ncx:content[@src]]'):
|
||||
order = playorder[selector(elem)[0]]
|
||||
elem.attrib['playOrder'] = str(order)
|
||||
return
|
||||
|
||||
def _to_ncx(self):
|
||||
lang = unicode(self.metadata.language[0])
|
||||
ncx = etree.Element(NCX('ncx'),
|
||||
@ -1256,35 +1446,50 @@ class OEBBook(object):
|
||||
nsmap={None: NCX_NS})
|
||||
head = etree.SubElement(ncx, NCX('head'))
|
||||
etree.SubElement(head, NCX('meta'),
|
||||
attrib={'name': 'dtb:uid', 'content': unicode(self.uid)})
|
||||
name='dtb:uid', content=unicode(self.uid))
|
||||
etree.SubElement(head, NCX('meta'),
|
||||
attrib={'name': 'dtb:depth', 'content': str(self.toc.depth())})
|
||||
name='dtb:depth', content=str(self.toc.depth()))
|
||||
generator = ''.join(['calibre (', calibre.__version__, ')'])
|
||||
etree.SubElement(head, NCX('meta'),
|
||||
attrib={'name': 'dtb:totalPageCount', 'content': '0'})
|
||||
name='dtb:generator', content=generator)
|
||||
etree.SubElement(head, NCX('meta'),
|
||||
attrib={'name': 'dtb:maxPageNumber', 'content': '0'})
|
||||
name='dtb:totalPageCount', content=str(len(self.pages)))
|
||||
maxpnum = etree.SubElement(head, NCX('meta'),
|
||||
name='dtb:maxPageNumber', content='0')
|
||||
title = etree.SubElement(ncx, NCX('docTitle'))
|
||||
text = etree.SubElement(title, NCX('text'))
|
||||
text.text = unicode(self.metadata.title[0])
|
||||
navmap = etree.SubElement(ncx, NCX('navMap'))
|
||||
self.toc.to_ncx(navmap)
|
||||
if len(self.pages) > 0:
|
||||
plist = self.pages.to_ncx(ncx)
|
||||
value = max(int(x) for x in xpath(plist, '//@value'))
|
||||
maxpnum.attrib['content'] = str(value)
|
||||
self._update_playorder(ncx)
|
||||
return ncx
|
||||
|
||||
def to_opf2(self):
|
||||
def to_opf2(self, page_map=False):
|
||||
results = {}
|
||||
package = etree.Element(OPF('package'),
|
||||
attrib={'version': '2.0', 'unique-identifier': self.uid.id},
|
||||
nsmap={None: OPF2_NS})
|
||||
metadata = self.metadata.to_opf2(package)
|
||||
manifest = self.manifest.to_opf2(package)
|
||||
id, href = self.manifest.generate('ncx', 'toc.ncx')
|
||||
etree.SubElement(manifest, OPF('item'),
|
||||
attrib={'id': id, 'href': href, 'media-type': NCX_MIME})
|
||||
spine = self.spine.to_opf2(package)
|
||||
spine.attrib['toc'] = id
|
||||
guide = self.guide.to_opf2(package)
|
||||
ncx = self._to_ncx()
|
||||
return {OPF_MIME: ('content.opf', package),
|
||||
NCX_MIME: (href, ncx)}
|
||||
results[OPF_MIME] = ('content.opf', package)
|
||||
id, href = self.manifest.generate('ncx', 'toc.ncx')
|
||||
etree.SubElement(manifest, OPF('item'), id=id, href=href,
|
||||
attrib={'media-type': NCX_MIME})
|
||||
spine.attrib['toc'] = id
|
||||
results[NCX_MIME] = (href, self._to_ncx())
|
||||
if page_map and len(self.pages) > 0:
|
||||
id, href = self.manifest.generate('page-map', 'page-map.xml')
|
||||
etree.SubElement(manifest, OPF('item'), id=id, href=href,
|
||||
attrib={'media-type': PAGE_MAP_MIME})
|
||||
spine.attrib['page-map'] = id
|
||||
results[PAGE_MAP_MIME] = (href, self.pages.to_page_map())
|
||||
return results
|
||||
|
||||
|
||||
def main(argv=sys.argv):
|
||||
@ -1292,7 +1497,7 @@ def main(argv=sys.argv):
|
||||
oeb = OEBBook(arg)
|
||||
for name, doc in oeb.to_opf1().values():
|
||||
print etree.tostring(doc, pretty_print=True)
|
||||
for name, doc in oeb.to_opf2().values():
|
||||
for name, doc in oeb.to_opf2(page_map=True).values():
|
||||
print etree.tostring(doc, pretty_print=True)
|
||||
return 0
|
||||
|
||||
|
||||
@ -109,6 +109,7 @@ class Stylizer(object):
|
||||
STYLESHEETS = {}
|
||||
|
||||
def __init__(self, tree, path, oeb, profile=PROFILES['PRS505']):
|
||||
self.oeb = oeb
|
||||
self.profile = profile
|
||||
self.logger = oeb.logger
|
||||
item = oeb.manifest.hrefs[path]
|
||||
@ -117,7 +118,7 @@ class Stylizer(object):
|
||||
stylesheets = [HTML_CSS_STYLESHEET]
|
||||
head = xpath(tree, '/h:html/h:head')[0]
|
||||
parser = cssutils.CSSParser()
|
||||
parser.setFetcher(lambda path: ('utf-8', oeb.container.read(path)))
|
||||
parser.setFetcher(self._fetch_css_file)
|
||||
for elem in head:
|
||||
if elem.tag == XHTML('style') and elem.text \
|
||||
and elem.get('type', CSS_MIME) in OEB_STYLES:
|
||||
@ -138,8 +139,7 @@ class Stylizer(object):
|
||||
if path in self.STYLESHEETS:
|
||||
stylesheet = self.STYLESHEETS[path]
|
||||
else:
|
||||
data = XHTML_CSS_NAMESPACE
|
||||
data += oeb.manifest.hrefs[path].data
|
||||
data = self._fetch_css_file(path)[1]
|
||||
stylesheet = parser.parseString(data, href=path)
|
||||
stylesheet.namespaces['h'] = XHTML_NS
|
||||
self.STYLESHEETS[path] = stylesheet
|
||||
@ -167,6 +167,15 @@ class Stylizer(object):
|
||||
for elem in xpath(tree, '//h:*[@style]'):
|
||||
self.style(elem)._apply_style_attr()
|
||||
|
||||
def _fetch_css_file(self, path):
|
||||
hrefs = self.oeb.manifest.hrefs
|
||||
if path not in hrefs:
|
||||
return (None, None)
|
||||
data = hrefs[path].data
|
||||
data = self.oeb.decode(data)
|
||||
data = XHTML_CSS_NAMESPACE + data
|
||||
return (None, data)
|
||||
|
||||
def flatten_rule(self, rule, href, index):
|
||||
results = []
|
||||
if isinstance(rule, CSSStyleRule):
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user