# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
import os
+import re
+import shutil
class ParseError(Exception):
def __str__(self):
""" Dirty workaround for Python Unicode handling problems. """
- return self.message.message
+ return self.message
def __unicode__(self):
""" Dirty workaround for Python Unicode handling problems. """
- return self.message.message
+ return self.message
class ValidationError(Exception):
pass
class NoDublinCore(ValidationError):
+ """There's no DublinCore section, and it's required."""
+ pass
+
+class NoProvider(Exception):
+ """There's no DocProvider specified, and it's needed."""
pass
class XMLNamespace(object):
WLNS = EmptyNamespace()
+class WLURI(object):
+ """Represents a WL URI. Extracts slug and language from it."""
+
+ slug = None
+ language = None
+
+ _re_wl_uri = re.compile('http://wolnelektury.pl/katalog/lektura/'
+ '(?P<slug>[-a-z]+)(/(?P<lang>[a-z]{3})/?)?')
+
+ def __init__(self, uri):
+ self.uri = uri
+ match = self._re_wl_uri.match(uri)
+ assert match
+ self.slug = match.group('slug')
+ self.language = match.group('lang')
+
+
class DocProvider(object):
- """ Base class for a repository of XML files.
- Used for generating joined files, like EPUBs
+ """Base class for a repository of XML files.
+
+ Used for generating joined files, like EPUBs.
"""
- def by_slug(self, slug):
- raise NotImplemented
+ def by_slug_and_lang(self, slug, lang=None):
+ """Should return a file-like object with a WL document XML."""
+ raise NotImplementedError
- def __getitem__(self, slug):
- return self.by_slug(slug)
+ 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):
- return self.by_slug(uri.rsplit('/', 1)[1])
+ """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
+ def __init__(self, dir_):
+ self.dir = dir_
self.files = {}
+ return super(DirDocProvider, self).__init__()
- def by_slug(self, slug):
- return open(os.path.join(self.dir, '%s.xml' % slug))
+ def by_slug_and_lang(self, slug, lang=None):
+ fname = "%s%s.xml" % (slug, ".%s" % lang if lang else "")
+ 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'}, \
+ { RDFNS('about'): u'http://wiki.wolnepodreczniki.pl/Lektury:Template'},
{ DCNS('creator'): [u'Some, Author'],
DCNS('title'): [u'Some Title'],
DCNS('subject.period'): [u'Unknown'],
method='xml', encoding=unicode, pretty_print=True)
return u'<utwor>\n' + dcstring + u'\n<plain-text>\n' + ocrtext + \
- u'\n</plain-text>\n</utwor>';
+ 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)
+ e = etree.tostring(child, method='xml', encoding=unicode,
+ pretty_print=True)
b += e
return b
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."""
+
+ 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 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)
fnp / librarian.git / blobdiff