Add raw text option to text conversion (lesmianator will need it).

[librarian.git] / librarian / epub.py

diff --git a/librarian/epub.py b/librarian/epub.py
index a5607f7..f2987b5 100644 (file)
--- a/librarian/epub.py
+++ b/librarian/epub.py
@@ -1,13 +1,14 @@
 # -*- coding: utf-8 -*-
 #
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # -*- coding: utf-8 -*-
 #
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.

-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.  
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.

 #
 from __future__ import with_statement
 
 import os
 import os.path
 import subprocess
 #
 from __future__ import with_statement
 
 import os
 import os.path
 import subprocess

+from StringIO import StringIO

 from copy import deepcopy
 from lxml import etree
 import zipfile
 from copy import deepcopy
 from lxml import etree
 import zipfile


@@ -16,10 +17,10 @@ from shutil import rmtree
 
 import sys
 
 
 import sys
 

-from librarian import XMLNamespace, RDFNS, DCNS, WLNS, NCXNS, OPFNS, NoDublinCore
+from librarian import XMLNamespace, RDFNS, DCNS, WLNS, NCXNS, OPFNS, XHTMLNS, NoDublinCore

 from librarian.dcparser import BookInfo
 
 from librarian.dcparser import BookInfo
 

-from librarian import functions
+from librarian import functions, get_resource

 
 functions.reg_person_name()
 
 
 functions.reg_person_name()
 


@@ -32,7 +33,7 @@ def inner_xml(node):
     """
 
     nt = node.text if node.text is not None else ''
     """
 
     nt = node.text if node.text is not None else ''

-    return ''.join([nt] + [etree.tostring(child) for child in node]) 
+    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


@@ -73,11 +74,6 @@ def xslt(xml, sheet):
         return xml.xslt(etree.parse(xsltf))
 
 
         return xml.xslt(etree.parse(xsltf))
 
 

-_resdir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'epub')
-def res(fname):
-    return os.path.join(_resdir, fname)
-
-

 def replace_characters(node):
     def replace_chars(text):
         if text is None:
 def replace_characters(node):
     def replace_chars(text):
         if text is None:


@@ -110,7 +106,7 @@ def find_annotations(annotations, source, part_no):
             child.clear()
             child.tail = tail
             child.text = number
             child.clear()
             child.tail = tail
             child.text = number

-        if child.tag not in ('extra', 'podtytul'):
+        if child.tag not in ('extra',):

             find_annotations(annotations, child, part_no)
 
 
             find_annotations(annotations, child, part_no)
 
 


@@ -245,7 +241,7 @@ def chop(main_text):
     yield part_xml
 
 
     yield part_xml
 
 

-def transform_chunk(chunk_xml, chunk_no, annotations):
+def transform_chunk(chunk_xml, chunk_no, annotations, empty=False, _empty_html_static=[]):

     """ transforms one chunk, returns a HTML string, a TOC object and a set of used characters """
 
     toc = TOC()
     """ transforms one chunk, returns a HTML string, a TOC object and a set of used characters """
 
     toc = TOC()


@@ -255,15 +251,22 @@ def transform_chunk(chunk_xml, chunk_no, annotations):
         elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
             subnumber = toc.add(node_name(element), chunk_no, level=1, is_part=False)
             element.set('sub', str(subnumber))
         elif element.tag in ('naglowek_podrozdzial', 'naglowek_scena'):
             subnumber = toc.add(node_name(element), chunk_no, level=1, is_part=False)
             element.set('sub', str(subnumber))

-    find_annotations(annotations, chunk_xml, chunk_no)
-    replace_by_verse(chunk_xml)
-    html_tree = xslt(chunk_xml, res('xsltScheme.xsl'))
-    chars = used_chars(html_tree.getroot())
-    output_html = etree.tostring(html_tree, method="html", pretty_print=True)
+    if empty:
+        if not _empty_html_static:
+            _empty_html_static.append(open(get_resource('epub/emptyChunk.html')).read())
+        chars = set()
+        output_html = _empty_html_static[0]
+    else:
+        find_annotations(annotations, chunk_xml, chunk_no)
+        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)

     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(provider, slug=None, file_path=None, output_file=None, output_dir=None, make_dir=False, verbose=False,
+              sample=None, cover=None, flags=None):

     """ produces a EPUB file
 
     provider: a DocProvider
     """ produces a EPUB file
 
     provider: a DocProvider


@@ -271,9 +274,12 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
     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
     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)
+    cover: a cover.Cover object
+    flags: less-advertising,

     """
 
     """
 

-    def transform_file(input_xml, chunk_counter=1, first=True):
+    def transform_file(input_xml, chunk_counter=1, first=True, sample=None):

         """ processes one input file and proceeds to its children """
 
         replace_characters(input_xml.getroot())
         """ processes one input file and proceeds to its children """
 
         replace_characters(input_xml.getroot())


@@ -286,16 +292,20 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         chars = set()
         if first:
             # write book title page
         chars = set()
         if first:
             # write book title page

-            html_tree = xslt(input_xml, res('xsltTitle.xsl'))
+            html_tree = xslt(input_xml, get_resource('epub/xsltTitle.xsl'))

             chars = used_chars(html_tree.getroot())
             zip.writestr('OPS/title.html',
                  etree.tostring(html_tree, method="html", pretty_print=True))
         elif children:
             # write title page for every parent
             chars = used_chars(html_tree.getroot())
             zip.writestr('OPS/title.html',
                  etree.tostring(html_tree, method="html", pretty_print=True))
         elif children:
             # write title page for every parent

-            html_tree = xslt(input_xml, res('xsltChunkTitle.xsl'))
-            chars = used_chars(html_tree.getroot())
-            zip.writestr('OPS/part%d.html' % chunk_counter, 
-                etree.tostring(html_tree, method="html", pretty_print=True))
+            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'))
+                chars = used_chars(html_tree.getroot())
+                html_string = etree.tostring(html_tree, method="html", pretty_print=True)
+            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
             add_to_manifest(manifest, chunk_counter)
             add_to_spine(spine, chunk_counter)
             chunk_counter += 1


@@ -311,7 +321,14 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
 
         if main_text is not None:
             for chunk_xml in chop(main_text):
 
         if main_text is not None:
             for chunk_xml in chop(main_text):

-                chunk_html, chunk_toc, chunk_chars = transform_chunk(chunk_xml, chunk_counter, annotations)
+                empty = False
+                if sample is not None:
+                    if sample <= 0:
+                        empty = True
+                    else:
+                        sample -= len(chunk_xml.xpath('//strofa|//akap|//akap_cd|//akap_dialog'))
+                chunk_html, chunk_toc, chunk_chars = transform_chunk(chunk_xml, chunk_counter, annotations, empty)
+

                 toc.extend(chunk_toc)
                 chars = chars.union(chunk_chars)
                 zip.writestr('OPS/part%d.html' % chunk_counter, chunk_html)
                 toc.extend(chunk_toc)
                 chars = chars.union(chunk_chars)
                 zip.writestr('OPS/part%d.html' % chunk_counter, chunk_html)


@@ -322,11 +339,11 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         if children:
             for child in children:
                 child_xml = etree.parse(provider.by_uri(child))
         if children:
             for child in children:
                 child_xml = etree.parse(provider.by_uri(child))

-                child_toc, chunk_counter, chunk_chars = transform_file(child_xml, chunk_counter, first=False)
+                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)
 
                 toc.append(child_toc)
                 chars = chars.union(chunk_chars)
 

-        return toc, chunk_counter, chars
+        return toc, chunk_counter, chars, sample

 
     # read metadata from the first file
     if file_path:
 
     # read metadata from the first file
     if file_path:


@@ -340,6 +357,10 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
             raise ValueError('either slug or file_path should be specified')
         input_xml = etree.parse(provider[slug])
 
             raise ValueError('either slug or file_path should be specified')
         input_xml = etree.parse(provider[slug])
 

+    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.')
     metadata = input_xml.find('.//'+RDFNS('Description'))
     if metadata is None:
         raise NoDublinCore('Document has no DublinCore - which is required.')


@@ -373,13 +394,35 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                        '<rootfiles><rootfile full-path="OPS/content.opf" ' \
                        'media-type="application/oebps-package+xml" />' \
                        '</rootfiles></container>')
                        '<rootfiles><rootfile full-path="OPS/content.opf" ' \
                        'media-type="application/oebps-package+xml" />' \
                        '</rootfiles></container>')

-    for fname in 'style.css', 'logo_wolnelektury.png':
-        zip.write(res(fname), os.path.join('OPS', fname))
+    zip.write(get_resource('epub/style.css'), os.path.join('OPS', 'style.css'))
+    zip.write(get_resource('res/wl-logo-small.png'), os.path.join('OPS', 'logo_wolnelektury.png'))

 
 

-    opf = xslt(metadata, res('xsltContent.xsl'))
+    opf = xslt(metadata, get_resource('epub/xsltContent.xsl'))

     manifest = opf.find('.//' + OPFNS('manifest'))
     spine = opf.find('.//' + OPFNS('spine'))
 
     manifest = opf.find('.//' + OPFNS('manifest'))
     spine = opf.find('.//' + OPFNS('spine'))
 

+    if cover:
+        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())
+        del cover_file
+
+        cover_tree = etree.parse(get_resource('epub/cover.html'))
+        cover_tree.find('//' + XHTMLNS('img')).set('src', c_name)
+        zip.writestr('OPS/cover.html', etree.tostring(
+                        cover_tree, method="html", pretty_print=True))
+
+        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" />'))
+        opf.getroot()[0].append(etree.fromstring('<meta name="cover" content="cover-image"/>'))
+        opf.getroot().append(etree.fromstring('<guide><reference href="cover.html" type="cover" title="Okładka"/></guide>'))
+
+

     annotations = etree.Element('annotations')
 
     toc_file = etree.fromstring('<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC ' \
     annotations = etree.Element('annotations')
 
     toc_file = etree.fromstring('<?xml version="1.0" encoding="utf-8"?><!DOCTYPE ncx PUBLIC ' \


@@ -391,7 +434,7 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
                                '</navPoint></navMap></ncx>')
     nav_map = toc_file[-1]
 
                                '</navPoint></navMap></ncx>')
     nav_map = toc_file[-1]
 

-    toc, chunk_counter, chars = transform_file(input_xml)
+    toc, chunk_counter, chars, sample = transform_file(input_xml, sample=sample)

 
     if not toc.children:
         toc.add(u"Początek utworu", 1)
 
     if not toc.children:
         toc.add(u"Początek utworu", 1)


@@ -402,23 +445,37 @@ def transform(provider, slug=None, file_path=None, output_file=None, output_dir=
         nav_map.append(etree.fromstring(
             '<navPoint id="NavPoint-%(i)d" playOrder="%(i)d" ><navLabel><text>Przypisy</text>'\
             '</navLabel><content src="annotations.html" /></navPoint>' % {'i': toc_counter}))
         nav_map.append(etree.fromstring(
             '<navPoint id="NavPoint-%(i)d" playOrder="%(i)d" ><navLabel><text>Przypisy</text>'\
             '</navLabel><content src="annotations.html" /></navPoint>' % {'i': toc_counter}))

+        toc_counter += 1

         manifest.append(etree.fromstring(
             '<item id="annotations" href="annotations.html" media-type="application/xhtml+xml" />'))
         spine.append(etree.fromstring(
             '<itemref idref="annotations" />'))
         replace_by_verse(annotations)
         manifest.append(etree.fromstring(
             '<item id="annotations" href="annotations.html" media-type="application/xhtml+xml" />'))
         spine.append(etree.fromstring(
             '<itemref idref="annotations" />'))
         replace_by_verse(annotations)

-        html_tree = xslt(annotations, res("xsltAnnotations.xsl"))
+        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))
 
         chars = chars.union(used_chars(html_tree.getroot()))
         zip.writestr('OPS/annotations.html', etree.tostring(
                             html_tree, method="html", pretty_print=True))
 

+    nav_map.append(etree.fromstring(
+        '<navPoint id="NavPoint-%(i)d" playOrder="%(i)d" ><navLabel><text>Strona redakcyjna</text>'\
+        '</navLabel><content src="last.html" /></navPoint>' % {'i': toc_counter}))
+    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'))
+    chars.update(used_chars(html_tree.getroot()))
+    zip.writestr('OPS/last.html', etree.tostring(
+                        html_tree, method="html", pretty_print=True))
+

     # strip fonts
     tmpdir = mkdtemp('-librarian-epub')
     cwd = os.getcwd()
 
     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':
     # strip fonts
     tmpdir = mkdtemp('-librarian-epub')
     cwd = os.getcwd()
 
     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'), res('../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)