from django.contrib.auth.models import User
from django.core.files import File
from django.template.loader import render_to_string
-from django.template.defaultfilters import slugify
from django.utils.safestring import mark_safe
from django.utils.translation import get_language
from django.core.urlresolvers import reverse
+from django.db.models.signals import post_save, m2m_changed, pre_delete
from django.conf import settings
from newtagging.models import TagBase, tags_updated
from newtagging import managers
from catalogue.fields import JSONField
+from catalogue.utils import ExistingFile
from librarian import dcparser, html, epub, NoDublinCore
+import mutagen
from mutagen import id3
+from slughifi import slughifi
TAG_CATEGORIES = (
gazeta_link = models.CharField(blank=True, max_length=240)
wiki_link = models.CharField(blank=True, max_length=240)
+ class UrlDeprecationWarning(DeprecationWarning):
+ pass
+
categories_rev = {
'autor': 'author',
'epoka': 'epoch',
real_tags = []
ambiguous_slugs = []
category = None
+ deprecated = False
tags_splitted = tags.split('/')
- for index, name in enumerate(tags_splitted):
- if name in Tag.categories_rev:
+ for name in tags_splitted:
+ if category:
+ real_tags.append(Tag.objects.get(slug=name, category=category))
+ category = None
+ elif name in Tag.categories_rev:
category = Tag.categories_rev[name]
else:
- if category:
- real_tags.append(Tag.objects.get(slug=name, category=category))
- category = None
- else:
- try:
- real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
- except Tag.MultipleObjectsReturned, e:
- ambiguous_slugs.append(name)
+ try:
+ real_tags.append(Tag.objects.exclude(category='book').get(slug=name))
+ deprecated = True
+ except Tag.MultipleObjectsReturned, e:
+ ambiguous_slugs.append(name)
if category:
# something strange left off
e.tags = real_tags
e.ambiguous_slugs = ambiguous_slugs
raise e
- else:
- return real_tags
+ if deprecated:
+ e = Tag.UrlDeprecationWarning()
+ e.tags = real_tags
+ raise e
+ return real_tags
else:
return TagBase.get_tag_list(tags)
# TODO: why is this hard-coded ?
-def book_upload_path(ext=None):
+def book_upload_path(ext=None, maxlen=100):
def get_dynamic_path(media, filename, ext=ext):
# how to put related book's slug here?
if not ext:
- ext = media.type
+ if media.type == 'daisy':
+ ext = 'daisy.zip'
+ else:
+ ext = media.type
if not media.name:
- name = slugify(filename.split(".")[0])
+ name = slughifi(filename.split(".")[0])
else:
- name = slugify(media.name)
- return 'lektura/%s.%s' % (name, ext)
+ name = slughifi(media.name)
+ return 'book/%s/%s.%s' % (ext, name[:maxlen-len('book/%s/.%s' % (ext, ext))-4], ext)
return get_dynamic_path
class BookMedia(models.Model):
type = models.CharField(_('type'), choices=MEDIA_FORMATS, max_length="100")
- name = models.CharField(_('name'), max_length="100", blank=True)
- file = models.FileField(_('file'), upload_to=book_upload_path(), blank=True)
+ name = models.CharField(_('name'), max_length="100")
+ file = models.FileField(_('file'), upload_to=book_upload_path())
uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False)
- extra_info = JSONField(_('extra information'), default='{}')
+ extra_info = JSONField(_('extra information'), default='{}', editable=False)
+ book = models.ForeignKey('Book', related_name='media')
+ source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
def __unicode__(self):
return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
verbose_name = _('book media')
verbose_name_plural = _('book media')
- def save(self, force_insert=False, force_update=False):
- media = super(BookMedia, self).save(force_insert, force_update)
- if self.type == 'mp3':
- file = self.file
- extra_info = self.get_extra_info_value()
- extra_info.update(self.get_mp3_info())
- self.set_extra_info_value(extra_info)
- media = super(BookMedia, self).save(force_insert, force_update)
- return media
-
- def get_mp3_info(self):
- """Retrieves artist and director names from audio ID3 tags."""
+ def save(self, *args, **kwargs):
try:
- audio = id3.ID3(self.file.path)
- artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
- director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
- except:
- artist_name = director_name = ''
- return {'artist_name': artist_name, 'director_name': director_name}
+ b = BookMedia.objects.get(pk=self.pk)
+ except BookMedia.DoesNotExist, e:
+ pass
+ else:
+ # if file is replaced, delete the old one
+ if self.file.path != b.file.path:
+ b.file.delete(save=False)
+ # if name changed, change the file name, too
+ elif self.name != b.name:
+ self.file.save(None, ExistingFile(self.file.path))
+
+ super(BookMedia, self).save(*args, **kwargs)
+ extra_info = self.get_extra_info_value()
+ extra_info.update(self.read_meta())
+ self.set_extra_info_value(extra_info)
+ self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
+ return super(BookMedia, self).save(*args, **kwargs)
+
+ def read_meta(self):
+ """
+ Reads some metadata from the audiobook.
+ """
+
+ artist_name = director_name = project = funded_by = ''
+ if self.type == 'mp3':
+ try:
+ audio = id3.ID3(self.file.path)
+ artist_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE1'))
+ director_name = ', '.join(', '.join(tag.text) for tag in audio.getall('TPE3'))
+ project = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?project'])
+ funded_by = ", ".join([t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?funded_by'])
+ except:
+ pass
+ elif self.type == 'ogg':
+ try:
+ audio = mutagen.File(self.file.path)
+ artist_name = ', '.join(audio.get('artist', []))
+ director_name = ', '.join(audio.get('conductor', []))
+ project = ", ".join(audio.get('project', []))
+ funded_by = ", ".join(audio.get('funded_by', []))
+ except:
+ pass
+ else:
+ return {}
+ return {'artist_name': artist_name, 'director_name': director_name,
+ 'project': project, 'funded_by': funded_by}
+
+ @staticmethod
+ def read_source_sha1(filepath, filetype):
+ """
+ Reads source file SHA1 from audiobok metadata.
+ """
+
+ if filetype == 'mp3':
+ try:
+ audio = id3.ID3(filepath)
+ return [t.data for t in audio.getall('PRIV')
+ if t.owner=='wolnelektury.pl?flac_sha1'][0]
+ except:
+ return None
+ elif filetype == 'ogg':
+ try:
+ audio = mutagen.File(filepath)
+ return audio.get('flac_sha1', [None])[0]
+ except:
+ return None
+ else:
+ return None
class Book(models.Model):
pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)
epub_file = models.FileField(_('EPUB file'), upload_to=book_upload_path('epub'), blank=True)
txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)
- # other files
- medias = models.ManyToManyField(BookMedia, blank=True)
-
+
parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
objects = models.Manager()
tagged = managers.ModelTaggedItemManager(Tag)
else:
return False
else:
- if self.medias.filter(book=self, type=type).count() > 0:
+ if self.media.filter(type=type).exists():
return True
else:
return False
elif type == "pdf":
return self.pdf_file
else:
- return self.medias.filter(book=self, type=type)
+ return self.media.filter(type=type)
else:
return None
if self.has_media("txt"):
formats.append(u'<a href="%s">TXT</a>' % self.get_media('txt').url)
# other files
- for m in self.medias.order_by('type'):
+ for m in self.media.order_by('type'):
formats.append(u'<a href="%s">%s</a>' % (m.file.url, m.type.upper()))
formats = [mark_safe(format) for format in formats]
epub_file = StringIO()
try:
epub.transform(BookImportDocProvider(self), self.slug, output_file=epub_file)
- self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()), save=False)
- self.save()
+ self.epub_file.save('%s.epub' % self.slug, ContentFile(epub_file.getvalue()))
FileRecord(slug=self.slug, type='epub', sha1=sha1(epub_file.getvalue()).hexdigest()).save()
except NoDublinCore:
pass
child_book.save()
book_descendants += list(child_book.children.all())
+ def build_txt(self):
+ from StringIO import StringIO
+ from django.core.files.base import ContentFile
+ from librarian import text
+
+ out = StringIO()
+ text.transform(open(self.xml_file.path), out)
+ self.txt_file.save('%s.txt' % self.slug, ContentFile(out.getvalue()))
+ self.save()
+
@classmethod
- def from_xml_file(cls, xml_file, overwrite=False, build_epub=True):
+ def from_xml_file(cls, xml_file, **kwargs):
# use librarian to parse meta-data
book_info = dcparser.parse(xml_file)
xml_file = File(open(xml_file))
try:
- return cls.from_text_and_meta(xml_file, book_info, overwrite, build_epub=build_epub)
+ return cls.from_text_and_meta(xml_file, book_info, **kwargs)
finally:
xml_file.close()
@classmethod
- def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True):
+ def from_text_and_meta(cls, raw_file, book_info, overwrite=False, build_epub=True, build_txt=True):
+ import re
from tempfile import NamedTemporaryFile
- from slughifi import slughifi
from markupstring import MarkupString
from django.core.files.storage import default_storage
# Read book metadata
book_base, book_slug = book_info.url.rsplit('/', 1)
+ if re.search(r'[^a-zA-Z0-9-]', book_slug):
+ raise ValueError('Invalid characters in slug')
book, created = Book.objects.get_or_create(slug=book_slug)
if created:
tag.save()
book_tags.append(tag)
- book.tags = book_tags + book_shelves
+ book.tags = set(book_tags + book_shelves)
book_tag = book.book_tag()
new_fragment.save()
new_fragment.tags = set(book_tags + themes + [book_tag] + ancestor_tags)
+ if not settings.NO_BUILD_TXT and build_txt:
+ book.build_txt()
+
if not settings.NO_BUILD_EPUB and build_epub:
book.root_ancestor.build_epub()
def __unicode__(self):
return "%s %s.%s" % (self.sha1, self.slug, self.type)
+###########
+#
+# SIGNALS
+#
+###########
+
def _tags_updated_handler(sender, affected_tags, **kwargs):
# reset tag global counter
sender.book.reset_theme_counter()
tags_updated.connect(_tags_updated_handler)
+
+def _pre_delete_handler(sender, instance, **kwargs):
+ """ refresh Book on BookMedia delete """
+ if sender == BookMedia:
+ instance.book.save()
+pre_delete.connect(_pre_delete_handler)
+
+def _post_save_handler(sender, instance, **kwargs):
+ """ refresh all the short_html stuff on BookMedia update """
+ if sender == BookMedia:
+ instance.book.save()
+post_save.connect(_post_save_handler)
fnp / wolnelektury.git / blobdiff