changes in pdf: footer on first page, logo next to title, no duplicate title

[librarian.git] / librarian / __init__.py

diff --git a/librarian/__init__.py b/librarian/__init__.py
index fdd6b55..a0d70e7 100644 (file)
--- a/librarian/__init__.py
+++ b/librarian/__init__.py
@@ -3,47 +3,42 @@
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #

-import os

 import re
 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. """
     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. """
 
     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
 
     pass
 

-class NoProvider(Exception):
-    """There's no DocProvider specified, and it's needed."""
+
+class ValidationError(UnicodeException):

     pass
 
     pass
 

-class XMLNamespace(object):
-    '''A handy structure to repsent names in an XML namespace.'''

 
 

-    def __init__(self, uri):
-        self.uri = uri
+# was deleted, but still used???
+class NoDublinCore(ValidationError):
+    pass

 
 

-    def __call__(self, tag):
-        return '{%s}%s' % (self.uri, tag)

 
 

-    def __contains__(self, tag):
-        return tag.startswith('{' + str(self) + '}')
+class BuildError(Exception):
+    pass

 
 

-    def __repr__(self):
-        return 'XMLNamespace(%r)' % self.uri
-
-    def __str__(self):
-        return '%s' % self.uri

 
 class EmptyNamespace(XMLNamespace):
     def __init__(self):
 
 class EmptyNamespace(XMLNamespace):
     def __init__(self):


@@ -60,186 +55,50 @@ 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")
 
 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):
 
 
 class WLURI(object):

-    """Represents a WL URI. Extracts slug and language from it."""
-
+    """Represents a WL URI. Extracts slug from it."""

     slug = None
     slug = None

-    language = None

 
 

-    _re_wl_uri = re.compile('http://wolnelektury.pl/katalog/lektura/'
-            '(?P<slug>[-a-z]+)(/(?P<lang>[a-z]{3})/?)?')
+    example = 'http://wolnelektury.pl/katalog/lektura/template/'
+    _re_wl_uri = re.compile(r'http://(www\.)?wolnelektury.pl/katalog/lektura/(?P<slug>[-a-z0-9]+)/?$')

 
     def __init__(self, uri):
 
     def __init__(self, uri):

+        uri = unicode(uri)

         self.uri = 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.
-    """
-
-    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 """
+        self.slug = uri.rstrip('/').rsplit('/', 1)[-1]

 
 

-    def __init__(self, dir_):
-        self.dir = dir_
-        self.files = {}
-        return super(DirDocProvider, self).__init__()
-
-    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'},
-        { 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'): [u'pol'],
-          # 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'<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)
+    @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.

 
 

-class OutputFile(object):
-    """Represents a file returned by one of the converters."""
+        >>> WLURI.from_slug('a-slug').uri
+        u'http://wolnelektury.pl/katalog/lektura/a-slug/'

 
 

-    _string = None
-    _filename = None
+        """
+        uri = 'http://wolnelektury.pl/katalog/lektura/%s/' % slug
+        return cls(uri)

 
 

-    def __del__(self):
-        if self._filename:
-            os.unlink(self._filename)
+    def __unicode__(self):
+        return self.uri

 
 

-    def __nonzero__(self):
-        return self._string is not None or self._filename is not None
+    def __str__(self):
+        return self.uri

 
 

-    @classmethod
-    def from_string(cls, string):
-        """Converter returns contents of a file as a string."""
+    def __eq__(self, other):
+        return self.slug == other.slug

 
 

-        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)
+class URLOpener(urllib.FancyURLopener):
+    version = 'FNP Librarian (http://git.nowoczesnapolska.org.pl/?p=librarian.git)'
+urllib._urlopener = URLOpener()