X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/fefdce4e24f9e397df5538fe6e7f54b5ece4d841..4cd6cb040e4938a726585e678d72dbd67b8f005d:/src/librarian/html.py diff --git a/src/librarian/html.py b/src/librarian/html.py index f8e4a83..d4b9795 100644 --- a/src/librarian/html.py +++ b/src/librarian/html.py @@ -12,6 +12,7 @@ import copy from lxml import etree from librarian import XHTMLNS, ParseError, OutputFile from librarian import functions +from PIL import Image from lxml.etree import XMLSyntaxError, XSLTApplyError import six @@ -32,20 +33,66 @@ def get_stylesheet(name): def html_has_content(text): - return etree.ETXPath('//p|//{%(ns)s}p|//h1|//{%(ns)s}h1' % {'ns': str(XHTMLNS)})(text) + return etree.ETXPath( + '//p|//{%(ns)s}p|//h1|//{%(ns)s}h1' % {'ns': str(XHTMLNS)} + )(text) def transform_abstrakt(abstrakt_element): style_filename = get_stylesheet('legacy') style = etree.parse(style_filename) xml = etree.tostring(abstrakt_element, encoding='unicode') - document = etree.parse(six.StringIO(xml.replace('abstrakt', 'dlugi_cytat'))) # HACK + document = etree.parse(six.StringIO( + xml.replace('abstrakt', 'dlugi_cytat') + )) # HACK result = document.xslt(style) - html = re.sub('', '', etree.tostring(result, encoding='unicode')) + html = re.sub('', '', + etree.tostring(result, encoding='unicode')) return re.sub(']*>', '', html) -def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None): +def add_image_sizes(tree, gallery_path, gallery_url, base_url): + widths = [360, 600, 1200, 1800, 2400] + + for i, ilustr in enumerate(tree.findall('//ilustr')): + rel_path = ilustr.attrib['src'] + img_url = six.moves.urllib.parse.urljoin(base_url, rel_path) + + f = six.moves.urllib.request.urlopen(img_url) + img = Image.open(f) + ext = {'GIF': 'gif', 'PNG': 'png'}.get(img.format, 'jpg') + + srcset = [] + # Needed widths: predefined and original, limited by + # whichever is smaller. + img_widths = [ + w for w in + sorted( + set(widths + [img.size[0]]) + ) + if w <= min(widths[-1], img.size[0]) + ] + largest = None + for w in widths: + fname = '%d.W%d.%s' % (i, w, ext) + fpath = gallery_path + fname + if not os.path.exists(fpath): + height = round(img.size[1] * w / img.size[0]) + th = img.resize((w, height)) + th.save(fpath) + th_url = gallery_url + fname + srcset.append(" ".join(( + th_url, + '%dw' % w + ))) + largest_url = th_url + ilustr.attrib['srcset'] = ", ".join(srcset) + ilustr.attrib['src'] = largest_url + + f.close() + + +def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None, gallery_path='img/', gallery_url='img/', base_url='file://./'): """Transforms the WL document to XHTML. If output_filename is None, returns an XML, @@ -67,12 +114,22 @@ def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None): document.clean_ed_note() document.clean_ed_note('abstrakt') - + document.fix_pa_akap() + if not options: options = {} - options.setdefault('gallery', "''") - css = css or 'https://static.wolnelektury.pl/css/compressed/book_text.css' + try: + os.makedirs(gallery_path) + except OSError: + pass + + add_image_sizes(document.edoc, gallery_path, gallery_url, base_url) + + css = ( + css + or 'https://static.wolnelektury.pl/css/compressed/book_text.css' + ) css = "'%s'" % css result = document.transform(style, css=css, **options) del document # no longer needed large object :) @@ -83,7 +140,9 @@ def transform(wldoc, stylesheet='legacy', options=None, flags=None, css=None): add_table_of_contents(result.getroot()) return OutputFile.from_bytes(etree.tostring( - result, method='html', xml_declaration=False, pretty_print=True, encoding='utf-8')) + result, method='html', xml_declaration=False, + pretty_print=True, encoding='utf-8' + )) else: return None except KeyError: @@ -122,7 +181,12 @@ class Fragment(object): for event, element in self.closed_events(): if event == 'start': result.append(u'<%s %s>' % ( - element.tag, ' '.join('%s="%s"' % (k, v) for k, v in element.attrib.items()))) + element.tag, + ' '.join( + '%s="%s"' % (k, v) + for k, v in element.attrib.items() + ) + )) if element.text: result.append(element.text) elif event == 'end': @@ -146,7 +210,10 @@ def extract_fragments(input_filename): # iterparse would die on a HTML document parser = etree.HTMLParser(encoding='utf-8') buf = six.BytesIO() - buf.write(etree.tostring(etree.parse(input_filename, parser).getroot()[0][0], encoding='utf-8')) + buf.write(etree.tostring( + etree.parse(input_filename, parser).getroot()[0][0], + encoding='utf-8' + )) buf.seek(0) for event, element in etree.iterparse(buf, events=('start', 'end')): @@ -165,6 +232,8 @@ def extract_fragments(input_filename): while parent.get('id', None) != 'book-text': cparent = copy.deepcopy(parent) cparent.text = None + if 'id' in cparent.attrib: + del cparent.attrib['id'] parents.append(cparent) parent = parent.getparent() @@ -179,12 +248,15 @@ def extract_fragments(input_filename): try: fragment = open_fragments[element.get('fid')] except KeyError: - print('%s:closed not open fragment #%s' % (input_filename, element.get('fid'))) + print('%s:closed not open fragment #%s' % ( + input_filename, element.get('fid') + )) else: closed_fragments[fragment.id] = fragment del open_fragments[fragment.id] - # Append element tail to lost_text (we don't want to lose any text) + # Append element tail to lost_text + # (we don't want to lose any text) if element.tail: for fragment_id in open_fragments: open_fragments[fragment_id].append('text', element.tail) @@ -192,19 +264,27 @@ def extract_fragments(input_filename): # Process all elements except begin and end else: # Omit annotation tags - if (len(element.get('name', '')) or + if (len(element.get('name', '')) or element.get('class', '') in ('annotation', 'anchor')): if event == 'end' and element.tail: for fragment_id in open_fragments: - open_fragments[fragment_id].append('text', element.tail) + open_fragments[fragment_id].append( + 'text', element.tail + ) else: for fragment_id in open_fragments: - open_fragments[fragment_id].append(event, copy.copy(element)) + celem = copy.copy(element) + if 'id' in celem.attrib: + del celem.attrib['id'] + open_fragments[fragment_id].append( + event, celem + ) return closed_fragments, open_fragments -def add_anchor(element, prefix, with_link=True, with_target=True, link_text=None): +def add_anchor(element, prefix, with_link=True, with_target=True, + link_text=None): parent = element.getparent() index = parent.index(element) @@ -234,8 +314,14 @@ def add_anchors(root): counter = 1 for element in root.iterdescendants(): def f(e): - return e.get('class') in ('note', 'motto', 'motto_podpis', 'dedication', 'frame') or \ - e.get('id') == 'nota_red' or e.tag == 'blockquote' + return ( + e.get('class') in ( + 'note', 'motto', 'motto_podpis', 'dedication', 'frame' + ) + or e.get('id') == 'nota_red' + or e.tag == 'blockquote' + or e.get('id') == 'footnotes' + ) if any_ancestor(element, f): continue @@ -261,13 +347,19 @@ def add_table_of_contents(root): counter = 1 for element in root.iterdescendants(): if element.tag in ('h2', 'h3'): - if any_ancestor(element, - lambda e: e.get('id') in ('footnotes', 'nota_red') or e.get('class') in ('person-list',)): + if any_ancestor( + element, + lambda e: e.get('id') in ( + 'footnotes', 'nota_red' + ) or e.get('class') in ('person-list',)): continue element_text = raw_printable_text(element) - if element.tag == 'h3' and len(sections) and sections[-1][1] == 'h2': - sections[-1][3].append((counter, element.tag, element_text, [])) + if (element.tag == 'h3' and len(sections) + and sections[-1][1] == 'h2'): + sections[-1][3].append( + (counter, element.tag, element_text, []) + ) else: sections.append((counter, element.tag, element_text, [])) add_anchor(element, "s%d" % counter, with_link=False) @@ -281,17 +373,19 @@ def add_table_of_contents(root): for n, section, text, subsections in sections: section_element = etree.SubElement(toc_list, 'li') - add_anchor(section_element, "s%d" % n, with_target=False, link_text=text) + add_anchor(section_element, "s%d" % n, with_target=False, + link_text=text) if len(subsections): subsection_list = etree.SubElement(section_element, 'ol') for n1, subsection, subtext, _ in subsections: subsection_element = etree.SubElement(subsection_list, 'li') - add_anchor(subsection_element, "s%d" % n1, with_target=False, link_text=subtext) + add_anchor(subsection_element, "s%d" % n1, with_target=False, + link_text=subtext) root.insert(0, toc) - + def add_table_of_themes(root): try: from sortify import sortify @@ -341,8 +435,10 @@ def extract_annotations(html_path): footnote.text = None if len(footnote) and footnote[-1].tail == '\n': footnote[-1].tail = None - text_str = etree.tostring(footnote, method='text', encoding='unicode').strip() - html_str = etree.tostring(footnote, method='html', encoding='unicode').strip() + text_str = etree.tostring(footnote, method='text', + encoding='unicode').strip() + html_str = etree.tostring(footnote, method='html', + encoding='unicode').strip() match = re_qualifier.match(text_str) if match: