X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/895f081f74ce3f116bebb4ef76f5ab3d2e392fef..1428a9d8f91b754fe7f9fb96cbdd0d6a2536ffc1:/librarian/__init__.py diff --git a/librarian/__init__.py b/librarian/__init__.py index 582ee98..a0d70e7 100644 --- a/librarian/__init__.py +++ b/librarian/__init__.py @@ -1,58 +1,44 @@ # -*- coding: utf-8 -*- # -# This file is part of Librarian. +# This file is part of Librarian, licensed under GNU Affero GPLv3 or later. +# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # -# Copyright © 2008,2009,2010 Fundacja Nowoczesna Polska -# -# For full list of contributors see AUTHORS file. -# -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU Affero General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU Affero General Public License for more details. -# -# You should have received a copy of the GNU Affero General Public License -# along with this program. If not, see . -# -# exception classes +import re +import urllib +from .utils import XMLNamespace + -class ParseError(Exception): - - def __init__(self, cause, message=None): - self.cause = cause +class UnicodeException(Exception): + def __str__(self): + """ Dirty workaround for Python Unicode handling problems. """ + return unicode(self).encode('utf-8') + + def __unicode__(self): + """ Dirty workaround for Python Unicode handling problems. """ + args = self.args[0] if len(self.args) == 1 else self.args try: - self.message = message or self.cause.message - except: - self.message = "No message." + message = unicode(args) + except UnicodeDecodeError: + message = unicode(args, encoding='utf-8', errors='ignore') + return message -class ValidationError(Exception): - pass -class NoDublinCore(ValidationError): +class ParseError(UnicodeException): pass -class XMLNamespace(object): - '''A handy structure to repsent names in an XML namespace.''' - def __init__(self, uri): - self.uri = uri +class ValidationError(UnicodeException): + pass - def __call__(self, tag): - return '{%s}%s' % (self.uri, tag) - def __contains__(self, tag): - return tag.startswith('{'+str(self)+'}') +# was deleted, but still used??? +class NoDublinCore(ValidationError): + pass - def __repr__(self): - return 'XMLNamespace(%r)' % self.uri - def __str__(self): - return '%s' % self.uri +class BuildError(Exception): + pass + class EmptyNamespace(XMLNamespace): def __init__(self): @@ -66,60 +52,53 @@ RDFNS = XMLNamespace('http://www.w3.org/1999/02/22-rdf-syntax-ns#') DCNS = XMLNamespace('http://purl.org/dc/elements/1.1/') XINS = XMLNamespace("http://www.w3.org/2001/XInclude") XHTMLNS = XMLNamespace("http://www.w3.org/1999/xhtml") +NCXNS = XMLNamespace("http://www.daisy.org/z3986/2005/ncx/") +OPFNS = XMLNamespace("http://www.idpf.org/2007/opf") + +SSTNS = XMLNamespace('http://nowoczesnapolska.org.pl/sst#') + + +class WLURI(object): + """Represents a WL URI. Extracts slug from it.""" + slug = None + + example = 'http://wolnelektury.pl/katalog/lektura/template/' + _re_wl_uri = re.compile(r'http://(www\.)?wolnelektury.pl/katalog/lektura/(?P[-a-z0-9]+)/?$') + + def __init__(self, uri): + uri = unicode(uri) + self.uri = uri + self.slug = uri.rstrip('/').rsplit('/', 1)[-1] + + @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(cls, slug): + """Contructs an URI from slug. + + >>> WLURI.from_slug('a-slug').uri + u'http://wolnelektury.pl/katalog/lektura/a-slug/' + + """ + uri = 'http://wolnelektury.pl/katalog/lektura/%s/' % slug + return cls(uri) + + def __unicode__(self): + return self.uri + + def __str__(self): + return self.uri + + def __eq__(self, other): + return self.slug == other.slug + -WLNS = EmptyNamespace() - -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('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'): - [u"http://wolnelektury.pl/katalog/lektura/template"], - 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'\n' + dcstring + u'\n\n' + ocrtext +\ - u'\n\n'; - - -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) +class URLOpener(urllib.FancyURLopener): + version = 'FNP Librarian (http://git.nowoczesnapolska.org.pl/?p=librarian.git)' +urllib._urlopener = URLOpener()