fix #3663: changed and updated sort keys
[librarian.git] / librarian / epub.py
index c5942a2..bf2d4d9 100644 (file)
@@ -7,22 +7,63 @@ from __future__ import with_statement
 
 import os
 import os.path
 
 import os
 import os.path
+import re
 import subprocess
 from StringIO import StringIO
 from copy import deepcopy
 from lxml import etree
 import zipfile
 import subprocess
 from StringIO import StringIO
 from copy import deepcopy
 from lxml import etree
 import zipfile
-from tempfile import mkdtemp
+from tempfile import mkdtemp, NamedTemporaryFile
 from shutil import rmtree
 
 from shutil import rmtree
 
-import sys
-
-from librarian import XMLNamespace, RDFNS, DCNS, WLNS, NCXNS, OPFNS, XHTMLNS, NoDublinCore
-from librarian.dcparser import BookInfo
+from librarian import RDFNS, WLNS, NCXNS, OPFNS, XHTMLNS, DCNS, OutputFile
+from librarian.cover import DefaultEbookCover
 
 from librarian import functions, get_resource
 
 
 from librarian import functions, get_resource
 
+from librarian.hyphenator import Hyphenator
+
 functions.reg_person_name()
 functions.reg_person_name()
+functions.reg_lang_code_3to2()
+
+
+def set_hyph_language(source_tree):
+    def get_short_lng_code(text):
+        result = ''
+        text = ''.join(text)
+        with open(get_resource('res/ISO-639-2_8859-1.txt'), 'rb') as f:
+            for line in f:
+                list = line.strip().split('|')
+                if list[0] == text:
+                    result = list[2]
+        if result == '':
+            return text
+        else:
+            return result
+    bibl_lng = etree.XPath('//dc:language//text()',
+                           namespaces={'dc': str(DCNS)})(source_tree)
+    short_lng = get_short_lng_code(bibl_lng[0])
+    try:
+        return Hyphenator(get_resource('res/hyph-dictionaries/hyph_' +
+                                       short_lng + '.dic'))
+    except:
+        pass
+
+
+def hyphenate_and_fix_conjunctions(source_tree, hyph):
+    if hyph is not None:
+        texts = etree.XPath('/utwor/*[2]//text()')(source_tree)
+        for t in texts:
+            parent = t.getparent()
+            newt = ''
+            wlist = re.compile(r'\w+|[^\w]', re.UNICODE).findall(t)
+            for w in wlist:
+                newt += hyph.inserted(w, u'\u00AD')
+            newt = re.sub(r'(?<=\s\w)\s+', u'\u00A0', newt)
+            if t.is_text:
+                parent.text = newt
+            elif t.is_tail:
+                parent.tail = newt
 
 
 def inner_xml(node):
 
 
 def inner_xml(node):
@@ -35,6 +76,7 @@ def inner_xml(node):
     nt = node.text if node.text is not None else ''
     return ''.join([nt] + [etree.tostring(child) for child in node])
 
     nt = node.text if node.text is not None else ''
     return ''.join([nt] + [etree.tostring(child) for child in node])
 
+
 def set_inner_xml(node, text):
     """ sets node's text and children from a string
 
 def set_inner_xml(node, text):
     """ sets node's text and children from a string
 
@@ -98,7 +140,7 @@ def find_annotations(annotations, source, part_no):
     for child in source:
         if child.tag in ('pe', 'pa', 'pt', 'pr'):
             annotation = deepcopy(child)
     for child in source:
         if child.tag in ('pe', 'pa', 'pt', 'pr'):
             annotation = deepcopy(child)
-            number = str(len(annotations)+1)
+            number = str(len(annotations) + 1)
             annotation.set('number', number)
             annotation.set('part', str(part_no))
             annotation.tail = ''
             annotation.set('number', number)
             annotation.set('part', str(part_no))
             annotation.tail = ''
@@ -111,49 +153,91 @@ def find_annotations(annotations, source, part_no):
             find_annotations(annotations, child, part_no)
 
 
             find_annotations(annotations, child, part_no)
 
 
+class Stanza(object):
+    """
+    Converts / verse endings into verse elements in a stanza.
+
+    Slashes may only occur directly in the stanza. Any slashes in subelements
+    will be ignored, and the subelements will be put inside verse elements.
+
+    >>> s = etree.fromstring("<strofa>a <b>c</b> <b>c</b>/\\nb<x>x/\\ny</x>c/ \\nd</strofa>")
+    >>> Stanza(s).versify()
+    >>> print etree.tostring(s)
+    <strofa><wers_normalny>a <b>c</b> <b>c</b></wers_normalny><wers_normalny>b<x>x/
+    y</x>c</wers_normalny><wers_normalny>d</wers_normalny></strofa>
+
+    """
+    def __init__(self, stanza_elem):
+        self.stanza = stanza_elem
+        self.verses = []
+        self.open_verse = None
+
+    def versify(self):
+        self.push_text(self.stanza.text)
+        for elem in self.stanza:
+            self.push_elem(elem)
+            self.push_text(elem.tail)
+        tail = self.stanza.tail
+        self.stanza.clear()
+        self.stanza.tail = tail
+        self.stanza.extend(self.verses)
+
+    def open_normal_verse(self):
+        self.open_verse = self.stanza.makeelement("wers_normalny")
+        self.verses.append(self.open_verse)
+
+    def get_open_verse(self):
+        if self.open_verse is None:
+            self.open_normal_verse()
+        return self.open_verse
+
+    def push_text(self, text):
+        if not text:
+            return
+        for i, verse_text in enumerate(re.split(r"/\s*\n", text)):
+            if i:
+                self.open_normal_verse()
+            verse = self.get_open_verse()
+            if len(verse):
+                verse[-1].tail = (verse[-1].tail or "") + verse_text
+            else:
+                verse.text = (verse.text or "") + verse_text
+
+    def push_elem(self, elem):
+        if elem.tag.startswith("wers"):
+            verse = deepcopy(elem)
+            verse.tail = None
+            self.verses.append(verse)
+            self.open_verse = verse
+        else:
+            appended = deepcopy(elem)
+            appended.tail = None
+            self.get_open_verse().append(appended)
+
+
 def replace_by_verse(tree):
     """ Find stanzas and create new verses in place of a '/' character """
 
     stanzas = tree.findall('.//' + WLNS('strofa'))
 def replace_by_verse(tree):
     """ Find stanzas and create new verses in place of a '/' character """
 
     stanzas = tree.findall('.//' + WLNS('strofa'))
-    for node in stanzas:
-        for child_node in node:
-            if child_node.tag in ('slowo_obce', 'wyroznienie'):
-                foreign_verses = inner_xml(child_node).split('/\n')
-                if len(foreign_verses) > 1:
-                    new_foreign = ''
-                    for foreign_verse in foreign_verses:
-                        if foreign_verse.startswith('<wers'):
-                            new_foreign += foreign_verse
-                        else:
-                            new_foreign += ''.join(('<wers_normalny>', foreign_verse, '</wers_normalny>'))
-                    set_inner_xml(child_node, new_foreign)
-        verses = inner_xml(node).split('/\n')
-        if len(verses) > 1:
-            modified_inner_xml = ''
-            for verse in verses:
-                if verse.startswith('<wers') or verse.startswith('<extra'):
-                    modified_inner_xml += verse
-                else:
-                    modified_inner_xml += ''.join(('<wers_normalny>', verse, '</wers_normalny>'))
-            set_inner_xml(node, modified_inner_xml)
+    for stanza in stanzas:
+        Stanza(stanza).versify()
 
 
 def add_to_manifest(manifest, partno):
     """ Adds a node to the manifest section in content.opf file """
 
     partstr = 'part%d' % partno
 
 
 def add_to_manifest(manifest, partno):
     """ Adds a node to the manifest section in content.opf file """
 
     partstr = 'part%d' % partno
-    e = manifest.makeelement(OPFNS('item'), attrib={
-                                 'id': partstr,
-                                 'href': partstr + '.html',
-                                 'media-type': 'application/xhtml+xml',
-                             })
+    e = manifest.makeelement(
+        OPFNS('item'), attrib={'id': partstr, 'href': partstr + '.html',
+                               'media-type': 'application/xhtml+xml'}
+    )
     manifest.append(e)
 
 
 def add_to_spine(spine, partno):
     """ Adds a node to the spine section in content.opf file """
 
     manifest.append(e)
 
 
 def add_to_spine(spine, partno):
     """ Adds a node to the spine section in content.opf file """
 
-    e = spine.makeelement(OPFNS('itemref'), attrib={'idref': 'part%d' % partno});
+    e = spine.makeelement(OPFNS('itemref'), attrib={'idref': 'part%d' % partno})
     spine.append(e)
 
 
     spine.append(e)
 
 
@@ -167,7 +251,7 @@ class TOC(object):
     def add(self, name, part_href, level=0, is_part=True, index=None):
         assert level == 0 or index is None
         if level > 0 and self.children:
     def add(self, name, part_href, level=0, is_part=True, index=None):
         assert level == 0 or index is None
         if level > 0 and self.children:
-            return self.children[-1].add(name, "part%d.html" % part_href, level-1, is_part)
+            return self.children[-1].add(name, part_href, level - 1, is_part)
         else:
             t = TOC(name)
             t.part_href = part_href
         else:
             t = TOC(name)
             t.part_href = part_href
@@ -205,7 +289,10 @@ class TOC(object):
 
             nav_label = nav_map.makeelement(NCXNS('navLabel'))
             text = nav_map.makeelement(NCXNS('text'))
 
             nav_label = nav_map.makeelement(NCXNS('navLabel'))
             text = nav_map.makeelement(NCXNS('text'))
-            text.text = child.name
+            if child.name is not None:
+                text.text = re.sub(r'\n', ' ', child.name)
+            else:
+                text.text = child.name
             nav_label.append(text)
             nav_point.append(nav_label)
 
             nav_label.append(text)
             nav_point.append(nav_label)
 
@@ -222,7 +309,7 @@ class TOC(object):
             texts.append(
                 "<div style='margin-left:%dem;'><a href='%s'>%s</a></div>" %
                 (depth, child.href(), child.name))
             texts.append(
                 "<div style='margin-left:%dem;'><a href='%s'>%s</a></div>" %
                 (depth, child.href(), child.name))
-            texts.append(child.html_part(depth+1))
+            texts.append(child.html_part(depth + 1))
         return "\n".join(texts)
 
     def html(self):
         return "\n".join(texts)
 
     def html(self):
@@ -245,21 +332,44 @@ def chop(main_text):
     # prepare a container for each chunk
     part_xml = etree.Element('utwor')
     etree.SubElement(part_xml, 'master')
     # prepare a container for each chunk
     part_xml = etree.Element('utwor')
     etree.SubElement(part_xml, 'master')
-    main_xml_part = part_xml[0] # master
+    main_xml_part = part_xml[0]  # master
 
     last_node_part = False
 
     last_node_part = False
+
+    # the below loop are workaround for a problem with epubs in drama ebooks without acts
+    is_scene = False
+    is_act = False
     for one_part in main_text:
         name = one_part.tag
     for one_part in main_text:
         name = one_part.tag
-        if name == 'naglowek_czesc':
-            yield part_xml
-            last_node_part = True
-            main_xml_part[:] = [deepcopy(one_part)]
-        elif not last_node_part and name in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
-            yield part_xml
-            main_xml_part[:] = [deepcopy(one_part)]
+        if name == 'naglowek_scena':
+            is_scene = True
+        elif name == 'naglowek_akt':
+            is_act = True
+
+    for one_part in main_text:
+        name = one_part.tag
+        if is_act is False and is_scene is True:
+            if name == 'naglowek_czesc':
+                yield part_xml
+                last_node_part = True
+                main_xml_part[:] = [deepcopy(one_part)]
+            elif not last_node_part and name == "naglowek_scena":
+                yield part_xml
+                main_xml_part[:] = [deepcopy(one_part)]
+            else:
+                main_xml_part.append(deepcopy(one_part))
+                last_node_part = False
         else:
         else:
-            main_xml_part.append(deepcopy(one_part))
-            last_node_part = False
+            if name == 'naglowek_czesc':
+                yield part_xml
+                last_node_part = True
+                main_xml_part[:] = [deepcopy(one_part)]
+            elif not last_node_part and name in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
+                yield part_xml
+                main_xml_part[:] = [deepcopy(one_part)]
+            else:
+                main_xml_part.append(deepcopy(one_part))
+                last_node_part = False
     yield part_xml
 
 
     yield part_xml
 
 
@@ -268,7 +378,9 @@ def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_s
 
     toc = TOC()
     for element in chunk_xml[0]:
 
     toc = TOC()
     for element in chunk_xml[0]:
-        if element.tag in ("naglowek_czesc", "naglowek_rozdzial", "naglowek_akt", "srodtytul"):
+        if element.tag == "naglowek_czesc":
+            toc.add(node_name(element), "part%d.html#book-text" % chunk_no)
+        elif element.tag in ("naglowek_rozdzial", "naglowek_akt", "srodtytul"):
             toc.add(node_name(element), "part%d.html" % chunk_no)
         elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
             subnumber = toc.add(node_name(element), "part%d.html" % chunk_no, level=1, is_part=False)
             toc.add(node_name(element), "part%d.html" % chunk_no)
         elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
             subnumber = toc.add(node_name(element), "part%d.html" % chunk_no, level=1, is_part=False)
@@ -283,64 +395,77 @@ def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_s
         replace_by_verse(chunk_xml)
         html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
         chars = used_chars(html_tree.getroot())
         replace_by_verse(chunk_xml)
         html_tree = xslt(chunk_xml, get_resource('epub/xsltScheme.xsl'))
         chars = used_chars(html_tree.getroot())
-        output_html = etree.tostring(html_tree, method="html", pretty_print=True)
+        output_html = etree.tostring(
+            html_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        )
     return output_html, toc, chars
 
 
     return output_html, toc, chars
 
 
-def transform(provider, slug=None, file_path=None, output_file=None, output_dir=None, make_dir=False, verbose=False,
+def transform(wldoc, verbose=False,
               style=None, html_toc=False,
               sample=None, cover=None, flags=None):
     """ produces a EPUB file
 
               style=None, html_toc=False,
               sample=None, cover=None, flags=None):
     """ produces a EPUB file
 
-    provider: a DocProvider
-    slug: slug of file to process, available by provider
-    output_file: file-like object or path to output file
-    output_dir: path to directory to save output file to; either this or output_file must be present
-    make_dir: writes output to <output_dir>/<author>/<slug>.epub instead of <output_dir>/<slug>.epub
     sample=n: generate sample e-book (with at least n paragraphs)
     sample=n: generate sample e-book (with at least n paragraphs)
-    cover: a cover.Cover object
-    flags: less-advertising, without-fonts
+    cover: a cover.Cover factory or True for default
+    flags: less-advertising, without-fonts, working-copy
     """
 
     """
 
-    def transform_file(input_xml, chunk_counter=1, first=True, sample=None):
+    def transform_file(wldoc, chunk_counter=1, first=True, sample=None):
         """ processes one input file and proceeds to its children """
 
         """ processes one input file and proceeds to its children """
 
-        replace_characters(input_xml.getroot())
+        replace_characters(wldoc.edoc.getroot())
 
 
-        children = [child.text for child in input_xml.findall('.//'+DCNS('relation.hasPart'))]
+        hyphenator = set_hyph_language(wldoc.edoc.getroot())
+        hyphenate_and_fix_conjunctions(wldoc.edoc.getroot(), hyphenator)
 
         # every input file will have a TOC entry,
         # pointing to starting chunk
 
         # every input file will have a TOC entry,
         # pointing to starting chunk
-        toc = TOC(node_name(input_xml.find('.//'+DCNS('title'))), chunk_counter)
+        toc = TOC(wldoc.book_info.title, "part%d.html" % chunk_counter)
         chars = set()
         if first:
             # write book title page
         chars = set()
         if first:
             # write book title page
-            html_tree = xslt(input_xml, get_resource('epub/xsltTitle.xsl'))
+            html_tree = xslt(wldoc.edoc, get_resource('epub/xsltTitle.xsl'))
             chars = used_chars(html_tree.getroot())
             chars = used_chars(html_tree.getroot())
-            zip.writestr('OPS/title.html',
-                 etree.tostring(html_tree, method="html", pretty_print=True))
+            zip.writestr(
+                'OPS/title.html',
+                etree.tostring(
+                    html_tree, pretty_print=True, xml_declaration=True,
+                    encoding="utf-8",
+                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
+                            ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+                )
+            )
             # add a title page TOC entry
             toc.add(u"Strona tytułowa", "title.html")
             # add a title page TOC entry
             toc.add(u"Strona tytułowa", "title.html")
-        elif children:
+        elif wldoc.book_info.parts:
             # write title page for every parent
             if sample is not None and sample <= 0:
                 chars = set()
                 html_string = open(get_resource('epub/emptyChunk.html')).read()
             else:
             # write title page for every parent
             if sample is not None and sample <= 0:
                 chars = set()
                 html_string = open(get_resource('epub/emptyChunk.html')).read()
             else:
-                html_tree = xslt(input_xml, get_resource('epub/xsltChunkTitle.xsl'))
+                html_tree = xslt(wldoc.edoc, get_resource('epub/xsltChunkTitle.xsl'))
                 chars = used_chars(html_tree.getroot())
                 chars = used_chars(html_tree.getroot())
-                html_string = etree.tostring(html_tree, method="html", pretty_print=True)
+                html_string = etree.tostring(
+                    html_tree, pretty_print=True, xml_declaration=True,
+                    encoding="utf-8",
+                    doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"' +
+                            ' "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+                )
             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             chunk_counter += 1
 
             zip.writestr('OPS/part%d.html' % chunk_counter, html_string)
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             chunk_counter += 1
 
-        if len(input_xml.getroot()) > 1:
+        if len(wldoc.edoc.getroot()) > 1:
             # rdf before style master
             # rdf before style master
-            main_text = input_xml.getroot()[1]
+            main_text = wldoc.edoc.getroot()[1]
         else:
             # rdf in style master
         else:
             # rdf in style master
-            main_text = input_xml.getroot()[0]
+            main_text = wldoc.edoc.getroot()[0]
             if main_text.tag == RDFNS('RDF'):
                 main_text = None
 
             if main_text.tag == RDFNS('RDF'):
                 main_text = None
 
@@ -361,104 +486,112 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                 add_to_spine(spine, chunk_counter)
                 chunk_counter += 1
 
                 add_to_spine(spine, chunk_counter)
                 chunk_counter += 1
 
-        if children:
-            for child in children:
-                child_xml = etree.parse(provider.by_uri(child))
-                child_toc, chunk_counter, chunk_chars, sample = transform_file(child_xml, chunk_counter, first=False, sample=sample)
-                toc.append(child_toc)
-                chars = chars.union(chunk_chars)
+        for child in wldoc.parts():
+            child_toc, chunk_counter, chunk_chars, sample = transform_file(
+                child, chunk_counter, first=False, sample=sample)
+            toc.append(child_toc)
+            chars = chars.union(chunk_chars)
 
         return toc, chunk_counter, chars, sample
 
 
         return toc, chunk_counter, chars, sample
 
-    # read metadata from the first file
-    if file_path:
-        if slug:
-            raise ValueError('slug or file_path should be specified, not both')
-        f = open(file_path, 'r')
-        input_xml = etree.parse(f)
-        f.close()
-    else:
-        if not slug:
-            raise ValueError('either slug or file_path should be specified')
-        input_xml = etree.parse(provider[slug])
+    document = deepcopy(wldoc)
+    del wldoc
 
     if flags:
         for flag in flags:
 
     if flags:
         for flag in flags:
-            input_xml.getroot().set(flag, 'yes')
-
-    metadata = input_xml.find('.//'+RDFNS('Description'))
-    if metadata is None:
-        raise NoDublinCore('Document has no DublinCore - which is required.')
-    book_info = BookInfo.from_element(input_xml)
-    metadata = etree.ElementTree(metadata)
-
-    # if output to dir, create the file
-    if output_dir is not None:
-        if make_dir:
-            author = unicode(book_info.author)
-            output_dir = os.path.join(output_dir, author)
-            try:
-                os.makedirs(output_dir)
-            except OSError:
-                pass
-        if slug:
-            output_file = open(os.path.join(output_dir, '%s.epub' % slug), 'w')
-        else:
-            output_file = open(os.path.join(output_dir, os.path.splitext(os.path.basename(file_path))[0] + '.epub'), 'w')
+            document.edoc.getroot().set(flag, 'yes')
+
+    document.clean_ed_note()
+    document.clean_ed_note('abstrakt')
+
+    # add editors info
+    editors = document.editors()
+    if editors:
+        document.edoc.getroot().set('editors', u', '.join(sorted(
+            editor.readable() for editor in editors)))
+    if document.book_info.funders:
+        document.edoc.getroot().set('funders', u', '.join(
+            document.book_info.funders))
+    if document.book_info.thanks:
+        document.edoc.getroot().set('thanks', document.book_info.thanks)
+
+    opf = xslt(document.book_info.to_etree(), get_resource('epub/xsltContent.xsl'))
+    manifest = opf.find('.//' + OPFNS('manifest'))
+    guide = opf.find('.//' + OPFNS('guide'))
+    spine = opf.find('.//' + OPFNS('spine'))
 
 
+    output_file = NamedTemporaryFile(prefix='librarian', suffix='.epub', delete=False)
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
     zip = zipfile.ZipFile(output_file, 'w', zipfile.ZIP_DEFLATED)
 
+    functions.reg_mathml_epub(zip)
+
     # write static elements
     mime = zipfile.ZipInfo()
     mime.filename = 'mimetype'
     mime.compress_type = zipfile.ZIP_STORED
     mime.extra = ''
     zip.writestr(mime, 'application/epub+zip')
     # write static elements
     mime = zipfile.ZipInfo()
     mime.filename = 'mimetype'
     mime.compress_type = zipfile.ZIP_STORED
     mime.extra = ''
     zip.writestr(mime, 'application/epub+zip')
-    zip.writestr('META-INF/container.xml', '<?xml version="1.0" ?><container version="1.0" ' \
-                       'xmlns="urn:oasis:names:tc:opendocument:xmlns:container">' \
-                       '<rootfiles><rootfile full-path="OPS/content.opf" ' \
-                       'media-type="application/oebps-package+xml" />' \
-                       '</rootfiles></container>')
-    zip.write(get_resource('res/wl-logo-small.png'), os.path.join('OPS', 'logo_wolnelektury.png'))
-    zip.write(get_resource('res/jedenprocent.png'), os.path.join('OPS', 'jedenprocent.png'))
+    zip.writestr(
+        'META-INF/container.xml',
+        '<?xml version="1.0" ?>'
+        '<container version="1.0" '
+        'xmlns="urn:oasis:names:tc:opendocument:xmlns:container">'
+        '<rootfiles><rootfile full-path="OPS/content.opf" '
+        'media-type="application/oebps-package+xml" />'
+        '</rootfiles></container>'
+    )
+    zip.write(get_resource('res/wl-logo-small.png'),
+              os.path.join('OPS', 'logo_wolnelektury.png'))
+    zip.write(get_resource('res/jedenprocent.png'),
+              os.path.join('OPS', 'jedenprocent.png'))
     if not style:
         style = get_resource('epub/style.css')
     zip.write(style, os.path.join('OPS', 'style.css'))
 
     if not style:
         style = get_resource('epub/style.css')
     zip.write(style, os.path.join('OPS', 'style.css'))
 
-    opf = xslt(metadata, get_resource('epub/xsltContent.xsl'))
-    manifest = opf.find('.//' + OPFNS('manifest'))
-    guide = opf.find('.//' + OPFNS('guide'))
-    spine = opf.find('.//' + OPFNS('spine'))
-
     if cover:
     if cover:
+        if cover is True:
+            cover = DefaultEbookCover
+
         cover_file = StringIO()
         cover_file = StringIO()
-        c = cover(book_info.author.readable(), book_info.title)
-        c.save(cover_file)
-        c_name = 'cover.%s' % c.ext()
-        zip.writestr(os.path.join('OPS', c_name), cover_file.getvalue())
+        bound_cover = cover(document.book_info)
+        bound_cover.save(cover_file)
+        cover_name = 'cover.%s' % bound_cover.ext()
+        zip.writestr(os.path.join('OPS', cover_name), cover_file.getvalue())
         del cover_file
 
         cover_tree = etree.parse(get_resource('epub/cover.html'))
         del cover_file
 
         cover_tree = etree.parse(get_resource('epub/cover.html'))
-        cover_tree.find('//' + XHTMLNS('img')).set('src', c_name)
+        cover_tree.find('//' + XHTMLNS('img')).set('src', cover_name)
         zip.writestr('OPS/cover.html', etree.tostring(
         zip.writestr('OPS/cover.html', etree.tostring(
-                        cover_tree, method="html", pretty_print=True))
+            cover_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        ))
+
+        if bound_cover.uses_dc_cover:
+            if document.book_info.cover_by:
+                document.edoc.getroot().set('data-cover-by', document.book_info.cover_by)
+            if document.book_info.cover_source:
+                document.edoc.getroot().set('data-cover-source', document.book_info.cover_source)
 
         manifest.append(etree.fromstring(
             '<item id="cover" href="cover.html" media-type="application/xhtml+xml" />'))
         manifest.append(etree.fromstring(
 
         manifest.append(etree.fromstring(
             '<item id="cover" href="cover.html" media-type="application/xhtml+xml" />'))
         manifest.append(etree.fromstring(
-            '<item id="cover-image" href="%s" media-type="%s" />' % (c_name, c.mime_type())))
-        spine.insert(0, etree.fromstring('<itemref idref="cover" linear="no" />'))
+            '<item id="cover-image" href="%s" media-type="%s" />' % (cover_name, bound_cover.mime_type())))
+        spine.insert(0, etree.fromstring('<itemref idref="cover"/>'))
         opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
         guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))
 
         opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
         guide.append(etree.fromstring('<reference href="cover.html" type="cover" title="Okładka"/>'))
 
-
     annotations = etree.Element('annotations')
 
     annotations = etree.Element('annotations')
 
-    toc_file = etree.fromstring('<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC ' \
-                               '"-//NISO//DTD ncx 2005-1//EN" "http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">' \
-                               '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" ' \
-                               'version="2005-1"><head></head><docTitle></docTitle><navMap>' \
-                               '</navMap></ncx>')
+    toc_file = etree.fromstring(
+        '<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC '
+        '"-//NISO//DTD ncx 2005-1//EN" '
+        '"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd">'
+        '<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" xml:lang="pl" '
+        'version="2005-1"><head></head><docTitle></docTitle><navMap>'
+        '</navMap></ncx>'
+    )
     nav_map = toc_file[-1]
 
     if html_toc:
     nav_map = toc_file[-1]
 
     if html_toc:
@@ -468,7 +601,7 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
             '<itemref idref="html_toc" />'))
         guide.append(etree.fromstring('<reference href="toc.html" type="toc" title="Spis treści"/>'))
 
             '<itemref idref="html_toc" />'))
         guide.append(etree.fromstring('<reference href="toc.html" type="toc" title="Spis treści"/>'))
 
-    toc, chunk_counter, chars, sample = transform_file(input_xml, sample=sample)
+    toc, chunk_counter, chars, sample = transform_file(document, sample=sample)
 
     if len(toc.children) < 2:
         toc.add(u"Początek utworu", "part1.html")
 
     if len(toc.children) < 2:
         toc.add(u"Początek utworu", "part1.html")
@@ -484,27 +617,49 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(
         html_tree = xslt(annotations, get_resource('epub/xsltAnnotations.xsl'))
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(
-                            html_tree, method="html", pretty_print=True))
+            html_tree, pretty_print=True, xml_declaration=True,
+            encoding="utf-8",
+            doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                    '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+        ))
+
+    toc.add("Wesprzyj Wolne Lektury", "support.html")
+    manifest.append(etree.fromstring(
+        '<item id="support" href="support.html" media-type="application/xhtml+xml" />'))
+    spine.append(etree.fromstring(
+        '<itemref idref="support" />'))
+    html_string = open(get_resource('epub/support.html')).read()
+    chars.update(used_chars(etree.fromstring(html_string)))
+    zip.writestr('OPS/support.html', html_string)
 
     toc.add("Strona redakcyjna", "last.html")
     manifest.append(etree.fromstring(
         '<item id="last" href="last.html" media-type="application/xhtml+xml" />'))
     spine.append(etree.fromstring(
         '<itemref idref="last" />'))
 
     toc.add("Strona redakcyjna", "last.html")
     manifest.append(etree.fromstring(
         '<item id="last" href="last.html" media-type="application/xhtml+xml" />'))
     spine.append(etree.fromstring(
         '<itemref idref="last" />'))
-    html_tree = xslt(input_xml, get_resource('epub/xsltLast.xsl'))
+    html_tree = xslt(document.edoc, get_resource('epub/xsltLast.xsl'))
     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(
     chars.update(used_chars(html_tree.getroot()))
     zip.writestr('OPS/last.html', etree.tostring(
-                        html_tree, method="html", pretty_print=True))
+        html_tree, pretty_print=True, xml_declaration=True,
+        encoding="utf-8",
+        doctype='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" ' +
+                '"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
+    ))
 
 
-    if not flags or not 'without-fonts' in flags:
+    if not flags or 'without-fonts' not in flags:
         # strip fonts
         tmpdir = mkdtemp('-librarian-epub')
         # strip fonts
         tmpdir = mkdtemp('-librarian-epub')
-        cwd = os.getcwd()
+        try:
+            cwd = os.getcwd()
+        except OSError:
+            cwd = None
 
         os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'font-optimizer'))
         for fname in 'DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf', 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf':
 
         os.chdir(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'font-optimizer'))
         for fname in 'DejaVuSerif.ttf', 'DejaVuSerif-Bold.ttf', 'DejaVuSerif-Italic.ttf', 'DejaVuSerif-BoldItalic.ttf':
-            optimizer_call = ['perl', 'subset.pl', '--chars', ''.join(chars).encode('utf-8'),
-                              get_resource('fonts/' + fname), os.path.join(tmpdir, fname)]
+            optimizer_call = ['perl', 'subset.pl', '--chars',
+                              ''.join(chars).encode('utf-8'),
+                              get_resource('fonts/' + fname),
+                              os.path.join(tmpdir, fname)]
             if verbose:
                 print "Running font-optimizer"
                 subprocess.check_call(optimizer_call)
             if verbose:
                 print "Running font-optimizer"
                 subprocess.check_call(optimizer_call)
@@ -512,20 +667,20 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                 subprocess.check_call(optimizer_call, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
             zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
             manifest.append(etree.fromstring(
                 subprocess.check_call(optimizer_call, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
             zip.write(os.path.join(tmpdir, fname), os.path.join('OPS', fname))
             manifest.append(etree.fromstring(
-                '<item id="%s" href="%s" media-type="font/ttf" />' % (fname, fname)))
+                '<item id="%s" href="%s" media-type="application/x-font-truetype" />' % (fname, fname)))
         rmtree(tmpdir)
         rmtree(tmpdir)
-        os.chdir(cwd)
-
-    zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True))
-    contents = []
-    title = node_name(etree.ETXPath('.//'+DCNS('title'))(input_xml)[0])
+        if cwd is not None:
+            os.chdir(cwd)
+    zip.writestr('OPS/content.opf', etree.tostring(opf, pretty_print=True,
+                 xml_declaration=True, encoding="utf-8"))
+    title = document.book_info.title
     attributes = "dtb:uid", "dtb:depth", "dtb:totalPageCount", "dtb:maxPageNumber"
     for st in attributes:
         meta = toc_file.makeelement(NCXNS('meta'))
         meta.set('name', st)
         meta.set('content', '0')
         toc_file[0].append(meta)
     attributes = "dtb:uid", "dtb:depth", "dtb:totalPageCount", "dtb:maxPageNumber"
     for st in attributes:
         meta = toc_file.makeelement(NCXNS('meta'))
         meta.set('name', st)
         meta.set('content', '0')
         toc_file[0].append(meta)
-    toc_file[0][0].set('content', ''.join((title, 'WolneLektury.pl')))
+    toc_file[0][0].set('content', str(document.book_info.url))
     toc_file[0][1].set('content', str(toc.depth()))
     set_inner_xml(toc_file[1], ''.join(('<text>', title, '</text>')))
 
     toc_file[0][1].set('content', str(toc.depth()))
     set_inner_xml(toc_file[1], ''.join(('<text>', title, '</text>')))
 
@@ -534,5 +689,8 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         toc.add(u"Spis treści", "toc.html", index=1)
         zip.writestr('OPS/toc.html', toc.html().encode('utf-8'))
     toc.write_to_xml(nav_map)
         toc.add(u"Spis treści", "toc.html", index=1)
         zip.writestr('OPS/toc.html', toc.html().encode('utf-8'))
     toc.write_to_xml(nav_map)
-    zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True))
+    zip.writestr('OPS/toc.ncx', etree.tostring(toc_file, pretty_print=True,
+                 xml_declaration=True, encoding="utf-8"))
     zip.close()
     zip.close()
+
+    return OutputFile.from_filename(output_file.name)