X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/48acd2e1b4ad0a64661091dff97122b2a53e4685..9c6bd787477f177a5105ab05864d0f5d9da9e07d:/librarian/__init__.py?ds=sidebyside diff --git a/librarian/__init__.py b/librarian/__init__.py index 2e515dd..0c77901 100644 --- a/librarian/__init__.py +++ b/librarian/__init__.py @@ -8,24 +8,36 @@ from __future__ import with_statement import os import re import shutil +import urllib -class ParseError(Exception): +from util import makedirs + + +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 ParseError(UnicodeException): + pass -class ValidationError(Exception): +class ValidationError(UnicodeException): pass class NoDublinCore(ValidationError): """There's no DublinCore section, and it's required.""" pass -class NoProvider(Exception): +class NoProvider(UnicodeException): """There's no DocProvider specified, and it's needed.""" pass @@ -55,53 +67,48 @@ class EmptyNamespace(XMLNamespace): return tag # some common namespaces we use +XMLNS = XMLNamespace('http://www.w3.org/XML/1998/namespace') 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") +PLMETNS = XMLNamespace("http://dl.psnc.pl/schemas/plmet/") WLNS = EmptyNamespace() 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[-a-z0-9]+)(/(?P[a-z]{3}))?/?$') - - def __init__(self, uri=None): - if uri is not None: - uri = unicode(uri) - self.uri = uri - match = self._re_wl_uri.match(uri) - if not match: - raise ValueError('Supplied URI (%s) does not match ' - 'the WL document URI template.' % uri) - self.slug = match.group('slug') - self.language = match.group('lang') or self.DEFAULT_LANGUAGE + _re_wl_uri = re.compile(r'http://(www\.)?wolnelektury.pl/katalog/lektura/' + '(?P[-a-z0-9]+)/?$') + + 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_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 + >>> WLURI.from_slug('a-slug').uri u'http://wolnelektury.pl/katalog/lektura/a-slug/' - >>> WLURI.from_slug_and_lang('a-slug', 'deu').uri - u'http://wolnelektury.pl/katalog/lektura/a-slug/deu/' """ - if lang is None: - lang = cls.DEFAULT_LANGUAGE uri = 'http://wolnelektury.pl/katalog/lektura/%s/' % slug - if lang is not None and lang != cls.DEFAULT_LANGUAGE: - uri += lang + '/' return cls(uri) def __unicode__(self): @@ -111,17 +118,7 @@ class WLURI(object): 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") + return self.slug == other.slug class DocProvider(object): @@ -130,18 +127,14 @@ class DocProvider(object): 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) + raise NotImplementedError - def by_uri(self, uri): + def by_uri(self, uri, wluri=WLURI): """Should return a file-like object with a WL document XML.""" - wluri = WLURI(uri) - return self.by_slug_and_lang(wluri.slug, wluri.language) + wluri = wluri(uri) + return self.by_slug(wluri.slug) class DirDocProvider(DocProvider): @@ -151,8 +144,8 @@ class DirDocProvider(DocProvider): self.dir = dir_ self.files = {} - def by_slug_and_lang(self, slug, lang=None): - fname = WLURI.from_slug_and_lang(slug, lang).filename_stem() + '.xml' + def by_slug(self, slug): + fname = slug + '.xml' return open(os.path.join(self.dir, fname)) @@ -167,7 +160,7 @@ DEFAULT_BOOKINFO = dcparser.BookInfo( DCNS('subject.type'): [u'Unknown'], DCNS('subject.genre'): [u'Unknown'], DCNS('date'): ['1970-01-01'], - DCNS('language'): [WLURI.DEFAULT_LANGUAGE], + DCNS('language'): [u'pol'], # DCNS('date'): [creation_date], DCNS('publisher'): [u"Fundacja Nowoczesna Polska"], DCNS('description'): @@ -282,6 +275,10 @@ class OutputFile(object): """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) + makedirs(dirname) shutil.copy(self.get_filename(), path) + + +class URLOpener(urllib.FancyURLopener): + version = 'FNP Librarian (http://github.com/fnp/librarian)' +urllib._urlopener = URLOpener()