Limit image size, fixes #4464.

[librarian.git] / src / librarian / parser.py

diff --git a/src/librarian/parser.py b/src/librarian/parser.py
index efe6e95..b4e4c5c 100644 (file)
--- a/src/librarian/parser.py
+++ b/src/librarian/parser.py
@@ -1,29 +1,45 @@
-# -*- coding: utf-8 -*-
-#

 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.

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

 #
 #

-from __future__ import unicode_literals
-
+from collections import Counter
+import io
+import os
+import re
+from xml.parsers.expat import ExpatError
+from lxml import etree
+from lxml.etree import XMLSyntaxError, XSLTApplyError

 from librarian import ValidationError, NoDublinCore,  ParseError, NoProvider
 from librarian import RDFNS
 from librarian.cover import make_cover
 from librarian import dcparser
 from librarian import ValidationError, NoDublinCore,  ParseError, NoProvider
 from librarian import RDFNS
 from librarian.cover import make_cover
 from librarian import dcparser

+from .elements import WL_ELEMENTS

 
 

-from xml.parsers.expat import ExpatError
-from lxml import etree
-from lxml.etree import XMLSyntaxError, XSLTApplyError

 
 

-import os
-import re
-import six
+class WLElementLookup(etree.CustomElementClassLookup):
+    def lookup(self, node_type, document, namespace, name):
+        if node_type != 'element':
+            return
+        if namespace:
+            return
+        try:
+            return WL_ELEMENTS[name]
+        except KeyError:
+            return
+
+
+parser = etree.XMLParser()
+parser.set_element_class_lookup(
+    WLElementLookup()
+)

 
 
 
 

-class WLDocument(object):
+
+class WLDocument:
+    """Legacy class, to be replaced with documents.WLDocument."""

     LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
     provider = None
 
     LINE_SWAP_EXPR = re.compile(r'/\s', re.MULTILINE | re.UNICODE)
     provider = None
 

-    def __init__(self, edoc, parse_dublincore=True, provider=None, 
+    def __init__(self, edoc, parse_dublincore=True, provider=None,

                  strict=False, meta_fallbacks=None):
         self.edoc = edoc
         self.provider = provider
                  strict=False, meta_fallbacks=None):
         self.edoc = edoc
         self.provider = provider


@@ -33,28 +49,33 @@ class WLDocument(object):
         dc_path = './/' + RDFNS('RDF')
 
         if root_elem.tag != 'utwor':
         dc_path = './/' + RDFNS('RDF')
 
         if root_elem.tag != 'utwor':

-            raise ValidationError("Invalid root element. Found '%s', should be 'utwor'" % root_elem.tag)
+            raise ValidationError(
+                "Invalid root element. Found '%s', should be 'utwor'"
+                % root_elem.tag
+            )

 
         if parse_dublincore:
             self.rdf_elem = root_elem.find(dc_path)
 
             if self.rdf_elem is None:
 
         if parse_dublincore:
             self.rdf_elem = root_elem.find(dc_path)
 
             if self.rdf_elem is None:

-                raise NoDublinCore("Document must have a '%s' element." % RDFNS('RDF'))
+                raise NoDublinCore(
+                    "Document must have a '%s' element." % RDFNS('RDF')
+                )

 
             self.book_info = dcparser.BookInfo.from_element(
 
             self.book_info = dcparser.BookInfo.from_element(

-                    self.rdf_elem, fallbacks=meta_fallbacks, strict=strict)
+                self.rdf_elem, fallbacks=meta_fallbacks, strict=strict)

         else:
             self.book_info = None
 
     @classmethod
     def from_bytes(cls, xml, *args, **kwargs):
         else:
             self.book_info = None
 
     @classmethod
     def from_bytes(cls, xml, *args, **kwargs):

-        return cls.from_file(six.BytesIO(xml), *args, **kwargs)
+        return cls.from_file(io.BytesIO(xml), *args, **kwargs)

 
     @classmethod
     def from_file(cls, xmlfile, *args, **kwargs):
 
         # first, prepare for parsing
 
     @classmethod
     def from_file(cls, xmlfile, *args, **kwargs):
 
         # first, prepare for parsing

-        if isinstance(xmlfile, six.text_type):
+        if isinstance(xmlfile, str):

             file = open(xmlfile, 'rb')
             try:
                 data = file.read()
             file = open(xmlfile, 'rb')
             try:
                 data = file.read()


@@ -63,14 +84,14 @@ class WLDocument(object):
         else:
             data = xmlfile.read()
 
         else:
             data = xmlfile.read()
 

-        if not isinstance(data, six.text_type):
+        if not isinstance(data, str):

             data = data.decode('utf-8')
 
             data = data.decode('utf-8')
 

-        data = data.replace(u'\ufeff', '')
+        data = data.replace('\ufeff', '')

 
         try:
             parser = etree.XMLParser(remove_blank_text=False)
 
         try:
             parser = etree.XMLParser(remove_blank_text=False)

-            tree = etree.parse(six.BytesIO(data.encode('utf-8')), parser)
+            tree = etree.parse(io.BytesIO(data.encode('utf-8')), parser)

 
             return cls(tree, *args, **kwargs)
         except (ExpatError, XMLSyntaxError, XSLTApplyError) as e:
 
             return cls(tree, *args, **kwargs)
         except (ExpatError, XMLSyntaxError, XSLTApplyError) as e:


@@ -97,13 +118,20 @@ class WLDocument(object):
                     elem.insert(0, ins)
                 elem.text = chunks.pop(0)
 
                     elem.insert(0, ins)
                 elem.text = chunks.pop(0)
 

-    def parts(self):
+    def parts(self, pass_part_errors=False):

         if self.provider is None:
             raise NoProvider('No document provider supplied.')
         if self.book_info is None:
             raise NoDublinCore('No Dublin Core in document.')
         for part_uri in self.book_info.parts:
         if self.provider is None:
             raise NoProvider('No document provider supplied.')
         if self.book_info is None:
             raise NoDublinCore('No Dublin Core in document.')
         for part_uri in self.book_info.parts:

-            yield self.from_file(self.provider.by_uri(part_uri), provider=self.provider)
+            try:
+                with self.provider.by_slug(part_uri.slug) as f:
+                    yield self.from_file(f, provider=self.provider)
+            except Exception as e:
+                if pass_part_errors:
+                    yield e
+                else:
+                    raise

 
     def chunk(self, path):
         # convert the path to XPath
 
     def chunk(self, path):
         # convert the path to XPath


@@ -150,7 +178,9 @@ class WLDocument(object):
             try:
                 xpath = self.path_to_xpath(key)
                 node = self.edoc.xpath(xpath)[0]
             try:
                 xpath = self.path_to_xpath(key)
                 node = self.edoc.xpath(xpath)[0]

-                repl = etree.fromstring(u"<%s>%s</%s>" % (node.tag, data, node.tag))
+                repl = etree.fromstring(
+                    "<%s>%s</%s>" % (node.tag, data, node.tag)
+                )

                 node.getparent().replace(node, repl)
             except Exception as e:
                 unmerged.append(repr((key, xpath, e)))
                 node.getparent().replace(node, repl)
             except Exception as e:
                 unmerged.append(repr((key, xpath, e)))


@@ -160,13 +190,21 @@ class WLDocument(object):
     def clean_ed_note(self, note_tag='nota_red'):
         """ deletes forbidden tags from nota_red """
 
     def clean_ed_note(self, note_tag='nota_red'):
         """ deletes forbidden tags from nota_red """
 

-        for node in self.edoc.xpath('|'.join('//%s//%s' % (note_tag, tag) for tag in
-                                    ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))):
+        for node in self.edoc.xpath('|'.join(
+                '//%s//%s' % (note_tag, tag) for tag in
+                ('pa', 'pe', 'pr', 'pt', 'begin', 'end', 'motyw'))):

             tail = node.tail
             node.clear()
             node.tag = 'span'
             node.tail = tail
 
             tail = node.tail
             node.clear()
             node.tag = 'span'
             node.tail = tail
 

+    def fix_pa_akap(self):
+        for pa in ('pa','pe','pr','pt'):
+            for akap in self.edoc.findall(f'//{pa}/akap'):
+                akap.getparent().set('blocks', 'true')
+                if not akap.getparent().index(akap):
+                    akap.set('inline', 'true')
+            

     def editors(self):
         """Returns a set of all editors for book and its children.
 
     def editors(self):
         """Returns a set of all editors for book and its children.
 


@@ -174,7 +212,8 @@ class WLDocument(object):
         """
         if self.book_info is None:
             raise NoDublinCore('No Dublin Core in document.')
         """
         if self.book_info is None:
             raise NoDublinCore('No Dublin Core in document.')

-        persons = set(self.book_info.editors + self.book_info.technical_editors)
+        persons = set(self.book_info.editors
+                      + self.book_info.technical_editors)

         for child in self.parts():
             persons.update(child.editors())
         if None in persons:
         for child in self.parts():
             persons.update(child.editors())
         if None in persons:


@@ -191,18 +230,10 @@ class WLDocument(object):
         from librarian import text
         return text.transform(self, *args, **kwargs)
 
         from librarian import text
         return text.transform(self, *args, **kwargs)
 

-    def as_epub(self, *args, **kwargs):
-        from librarian import epub
-        return epub.transform(self, *args, **kwargs)
-

     def as_pdf(self, *args, **kwargs):
         from librarian import pdf
         return pdf.transform(self, *args, **kwargs)
 
     def as_pdf(self, *args, **kwargs):
         from librarian import pdf
         return pdf.transform(self, *args, **kwargs)
 

-    def as_mobi(self, *args, **kwargs):
-        from librarian import mobi
-        return mobi.transform(self, *args, **kwargs)
-

     def as_fb2(self, *args, **kwargs):
         from librarian import fb2
         return fb2.transform(self, *args, **kwargs)
     def as_fb2(self, *args, **kwargs):
         from librarian import fb2
         return fb2.transform(self, *args, **kwargs)


@@ -218,11 +249,16 @@ class WLDocument(object):
         from librarian import pdf
         return pdf.transform(self, *args, **kwargs)
 
         from librarian import pdf
         return pdf.transform(self, *args, **kwargs)
 

-    def save_output_file(self, output_file, output_path=None, output_dir_path=None, make_author_dir=False, ext=None):
+    def save_output_file(self, output_file, output_path=None,
+                         output_dir_path=None, make_author_dir=False,
+                         ext=None):

         if output_dir_path:
             save_path = output_dir_path
             if make_author_dir:
         if output_dir_path:
             save_path = output_dir_path
             if make_author_dir:

-                save_path = os.path.join(save_path, six.text_type(self.book_info.author).encode('utf-8'))
+                save_path = os.path.join(
+                    save_path,
+                    str(self.book_info.author).encode('utf-8')
+                )

             save_path = os.path.join(save_path, self.book_info.url.slug)
             if ext:
                 save_path += '.%s' % ext
             save_path = os.path.join(save_path, self.book_info.url.slug)
             if ext:
                 save_path += '.%s' % ext