# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from __future__ import with_statement
-
-import os
import re
-import shutil
+import urllib
+from .utils import XMLNamespace
+
-class ParseError(Exception):
+class UnicodeException(Exception):
def __str__(self):
""" Dirty workaround for Python Unicode handling problems. """
- return self.message
+ return unicode(self).encode('utf-8')
def __unicode__(self):
""" Dirty workaround for Python Unicode handling problems. """
- return self.message
+ args = self.args[0] if len(self.args) == 1 else self.args
+ try:
+ message = unicode(args)
+ except UnicodeDecodeError:
+ message = unicode(args, encoding='utf-8', errors='ignore')
+ return message
-class ValidationError(Exception):
- pass
-class NoDublinCore(ValidationError):
- """There's no DublinCore section, and it's required."""
+class ParseError(UnicodeException):
pass
-class NoProvider(Exception):
- """There's no DocProvider specified, and it's needed."""
- pass
-class XMLNamespace(object):
- '''A handy structure to repsent names in an XML namespace.'''
+class ValidationError(UnicodeException):
+ pass
- def __init__(self, uri):
- self.uri = uri
- def __call__(self, tag):
- return '{%s}%s' % (self.uri, tag)
+# was deleted, but still used???
+class NoDublinCore(ValidationError):
+ pass
- def __contains__(self, tag):
- return tag.startswith('{' + str(self) + '}')
- def __repr__(self):
- return 'XMLNamespace(%r)' % self.uri
+class BuildError(Exception):
+ pass
- def __str__(self):
- return '%s' % self.uri
class EmptyNamespace(XMLNamespace):
def __init__(self):
NCXNS = XMLNamespace("http://www.daisy.org/z3986/2005/ncx/")
OPFNS = XMLNamespace("http://www.idpf.org/2007/opf")
-WLNS = EmptyNamespace()
+SSTNS = XMLNamespace('http://nowoczesnapolska.org.pl/sst#')
class WLURI(object):
- """Represents a WL URI. Extracts slug and language from it."""
- DEFAULT_LANGUAGE = u'pol'
-
+ """Represents a WL URI. Extracts slug from it."""
slug = None
- language = None
example = 'http://wolnelektury.pl/katalog/lektura/template/'
- _re_wl_uri = re.compile('http://wolnelektury.pl/katalog/lektura/'
- '(?P<slug>[-a-z]+)(/(?P<lang>[a-z]{3})/?)?')
+ _re_wl_uri = re.compile(r'http://(www\.)?wolnelektury.pl/katalog/lektura/(?P<slug>[-a-z0-9]+)/?$')
+
+ def __init__(self, uri):
+ uri = unicode(uri)
+ self.uri = uri
+ self.slug = uri.rstrip('/').rsplit('/', 1)[-1]
- def __init__(self, uri=None):
- if uri is not None:
- self.uri = uri
- match = self._re_wl_uri.match(uri)
- assert match
- self.slug = match.group('slug')
- self.language = match.group('lang') or self.DEFAULT_LANGUAGE
+ @classmethod
+ def strict(cls, uri):
+ match = cls._re_wl_uri.match(uri)
+ if not match:
+ raise ValidationError(u'Invalid URI (%s). Should match: %s' % (
+ uri, cls._re_wl_uri.pattern))
+ return cls(uri)
@classmethod
- def from_slug_and_lang(cls, slug, lang):
- """Contructs an URI from slug and language code.
+ def from_slug(cls, slug):
+ """Contructs an URI from slug.
- >>> WLURI.from_slug_and_lang('a-slug', WLURI.DEFAULT_LANGUAGE).uri
- 'http://wolnelektury.pl/katalog/lektura/a-slug/'
- >>> WLURI.from_slug_and_lang('a-slug', 'deu').uri
- 'http://wolnelektury.pl/katalog/lektura/a-slug/deu/'
+ >>> WLURI.from_slug('a-slug').uri
+ u'http://wolnelektury.pl/katalog/lektura/a-slug/'
"""
- if lang is None:
- lang = self.DEFAULT_LANGUAGE
uri = 'http://wolnelektury.pl/katalog/lektura/%s/' % slug
- if lang is not None and lang != cls.DEFAULT_LANGUAGE:
- uri += lang + '/'
- instance = cls()
- instance.slug = slug
- instance.language = lang
- instance.uri = uri
- return instance
+ return cls(uri)
def __unicode__(self):
return self.uri
- def __eq__(self, other):
- return self.slug, self.language == other.slug, other.language
-
- def filename_stem(self):
- stem = self.slug
- if self.language != self.DEFAULT_LANGUAGE:
- stem += '_' + self.language
- return stem
-
- def validate_language(self, language):
- if language != self.language:
- raise ValidationError("Incorrect language definition in URI")
-
-
-class DocProvider(object):
- """Base class for a repository of XML files.
-
- Used for generating joined files, like EPUBs.
- """
-
- def by_slug_and_lang(self, slug, lang=None):
- """Should return a file-like object with a WL document XML."""
- raise NotImplementedError
-
- def by_slug(self, slug):
- """Should return a file-like object with a WL document XML."""
- return self.by_slug_and_lang(slug)
-
- def by_uri(self, uri):
- """Should return a file-like object with a WL document XML."""
- wluri = WLURI(uri)
- return self.by_slug_and_lang(wluri.slug, wluri.language)
-
-
-class DirDocProvider(DocProvider):
- """ Serve docs from a directory of files in form <slug>.xml """
-
- def __init__(self, dir_):
- self.dir = dir_
- self.files = {}
- return super(DirDocProvider, self).__init__()
-
- def by_slug_and_lang(self, slug, lang=None):
- fname = WLURI.from_slug_and_lang(slug, lang).filename_stem() + '.xml'
- return open(os.path.join(self.dir, fname))
-
-
-import lxml.etree as etree
-import dcparser
-
-DEFAULT_BOOKINFO = dcparser.BookInfo(
- { RDFNS('about'): u'http://wiki.wolnepodreczniki.pl/Lektury:Template'},
- { DCNS('creator'): [u'Some, Author'],
- DCNS('title'): [u'Some Title'],
- DCNS('subject.period'): [u'Unknown'],
- DCNS('subject.type'): [u'Unknown'],
- DCNS('subject.genre'): [u'Unknown'],
- DCNS('date'): ['1970-01-01'],
- DCNS('language'): [WLURI.DEFAULT_LANGUAGE],
- # DCNS('date'): [creation_date],
- DCNS('publisher'): [u"Fundacja Nowoczesna Polska"],
- DCNS('description'):
- [u"""Publikacja zrealizowana w ramach projektu
- Wolne Lektury (http://wolnelektury.pl). Reprodukcja cyfrowa
- wykonana przez Bibliotekę Narodową z egzemplarza
- pochodzącego ze zbiorów BN."""],
- DCNS('identifier.url'): [WLURI.example],
- DCNS('rights'):
- [u"Domena publiczna - zm. [OPIS STANU PRAWNEGO TEKSTU]"] })
-
-def xinclude_forURI(uri):
- e = etree.Element(XINS("include"))
- e.set("href", uri)
- return etree.tostring(e, encoding=unicode)
-
-def wrap_text(ocrtext, creation_date, bookinfo=DEFAULT_BOOKINFO):
- """Wrap the text within the minimal XML structure with a DC template."""
- bookinfo.created_at = creation_date
-
- dcstring = etree.tostring(bookinfo.to_etree(), \
- method='xml', encoding=unicode, pretty_print=True)
-
- return u'<utwor>\n' + dcstring + u'\n<plain-text>\n' + ocrtext + \
- u'\n</plain-text>\n</utwor>'
-
-
-def serialize_raw(element):
- b = u'' + (element.text or '')
-
- for child in element.iterchildren():
- e = etree.tostring(child, method='xml', encoding=unicode,
- pretty_print=True)
- b += e
-
- return b
-
-SERIALIZERS = {
- 'raw': serialize_raw,
-}
-
-def serialize_children(element, format='raw'):
- return SERIALIZERS[format](element)
-
-def get_resource(path):
- return os.path.join(os.path.dirname(__file__), path)
-
-
-class OutputFile(object):
- """Represents a file returned by one of the converters."""
-
- _string = None
- _filename = None
-
- def __del__(self):
- if self._filename:
- os.unlink(self._filename)
-
- def __nonzero__(self):
- return self._string is not None or self._filename is not None
-
- @classmethod
- def from_string(cls, string):
- """Converter returns contents of a file as a string."""
-
- instance = cls()
- instance._string = string
- return instance
-
- @classmethod
- def from_filename(cls, filename):
- """Converter returns contents of a file as a named file."""
-
- instance = cls()
- instance._filename = filename
- return instance
-
- def get_string(self):
- """Get file's contents as a string."""
-
- if self._filename is not None:
- with open(self._filename) as f:
- return f.read()
- else:
- return self._string
-
- def get_file(self):
- """Get file as a file-like object."""
-
- if self._string is not None:
- from StringIO import StringIO
- return StringIO(self._string)
- elif self._filename is not None:
- return open(self._filename)
-
- def get_filename(self):
- """Get file as a fs path."""
+ def __str__(self):
+ return self.uri
- if self._filename is not None:
- return self._filename
- elif self._string is not None:
- from tempfile import NamedTemporaryFile
- temp = NamedTemporaryFile(prefix='librarian-', delete=False)
- temp.write(self._string)
- temp.close()
- self._filename = temp.name
- return self._filename
- else:
- return None
+ def __eq__(self, other):
+ return self.slug == other.slug
- def save_as(self, path):
- """Save file to a path. Create directories, if necessary."""
- dirname = os.path.dirname(os.path.abspath(path))
- if not os.path.isdir(dirname):
- os.makedirs(dirname)
- shutil.copy(self.get_filename(), path)
+class URLOpener(urllib.FancyURLopener):
+ version = 'FNP Librarian (http://git.nowoczesnapolska.org.pl/?p=librarian.git)'
+urllib._urlopener = URLOpener()
fnp / librarian.git / blobdiff