X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/a3c860f00c7d12ae5852ddab056c98f52ee43072..b10cdf123648beb76120194d7f9bb69fc8433ede:/librarian/__init__.py diff --git a/librarian/__init__.py b/librarian/__init__.py index 42bc518..215cacb 100644 --- a/librarian/__init__.py +++ b/librarian/__init__.py @@ -8,24 +8,34 @@ from __future__ import with_statement import os import re import shutil +import urllib -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 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 @@ -66,42 +76,35 @@ 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}))?/?$') - - def __init__(self, uri=None): - if uri is not None: - uri = unicode(uri) - self.uri = uri - match = self._re_wl_uri.match(uri) - if not match: - raise ValueError('Supplied URI (%s) does not match ' - 'the WL document URI template.' % uri) - self.slug = match.group('slug') - self.language = match.group('lang') or self.DEFAULT_LANGUAGE + + example = 'http://edukacjamedialna.edu.pl/' + _re_wl_uri = re.compile(r'http://(www\.)?edukacjamedialna.edu.pl/(lekcje/)?' + '(?P[-a-z0-9]+)/?$') + + def __init__(self, uri): + uri = unicode(uri) + self.uri = uri + self.slug = uri.rstrip('/').rsplit('/', 1)[-1] @classmethod - def from_slug_and_lang(cls, slug, lang): - """Contructs an URI from slug and language code. + 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_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 + '/' + uri = 'http://prawokultury.pl/publikacje/%s/' % slug return cls(uri) def __unicode__(self): @@ -111,17 +114,7 @@ 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 +123,14 @@ 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, 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) + return self.by_slug(wluri.slug) class DirDocProvider(DocProvider): @@ -150,11 +139,10 @@ class DirDocProvider(DocProvider): 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)) + def by_slug(self, slug): + fname = slug + '.xml' + return IOFile.from_filename(os.path.join(self.dir, fname)) import lxml.etree as etree @@ -162,13 +150,16 @@ import dcparser DEFAULT_BOOKINFO = dcparser.BookInfo( { RDFNS('about'): u'http://wiki.wolnepodreczniki.pl/Lektury:Template'}, - { DCNS('creator'): [u'Some, Author'], + { + DCNS('creator.expert'): [u'Some, Author'], + DCNS('creator.scenario'): [u'Some, Author'], + DCNS('creator.textbook'): [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('language'): [u'pol'], # DCNS('date'): [creation_date], DCNS('publisher'): [u"Fundacja Nowoczesna Polska"], DCNS('description'): @@ -217,32 +208,35 @@ 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.""" - +class IOFile(object): + """ Represents a file fed as input or returned as a result. """ _string = None _filename = None + _filename_tmp = False + + def __init__(self, attachments=None): + self.attachments = attachments or {} def __del__(self): - if self._filename: + if self._filename_tmp: 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): + def from_string(cls, string, *args, **kwargs): """Converter returns contents of a file as a string.""" - instance = cls() + instance = cls(*args, **kwargs) instance._string = string return instance @classmethod - def from_filename(cls, filename): + def from_filename(cls, filename, *args, **kwargs): """Converter returns contents of a file as a named file.""" - instance = cls() + instance = cls(*args, **kwargs) instance._filename = filename return instance @@ -275,6 +269,7 @@ class OutputFile(object): temp.write(self._string) temp.close() self._filename = temp.name + self._filename_tmp = True return self._filename else: return None @@ -286,3 +281,25 @@ class OutputFile(object): if not os.path.isdir(dirname): os.makedirs(dirname) shutil.copy(self.get_filename(), path) + + def dump_to(self, path, directory=None): + """ Path should be name for main file. """ + self.save_as(path) + dirname = os.path.dirname(os.path.abspath(path)) + for filename, attachment in self.attachments.items(): + attachment.save_as(os.path.join(dirname, filename)) + + +class Format(object): + """ Generic format class. """ + def __init__(self, wldoc, **kwargs): + self.wldoc = wldoc + self.customization = kwargs + + def build(self): + raise NotImplementedError + + +class URLOpener(urllib.FancyURLopener): + version = 'FNP Librarian (http://github.com/fnp/librarian)' +urllib._urlopener = URLOpener()