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[wolnelektury.git] / src / catalogue / models / bookmedia.py

diff --git a/src/catalogue/models/bookmedia.py b/src/catalogue/models/bookmedia.py
index 7aa2bdd..5419405 100644 (file)
--- a/src/catalogue/models/bookmedia.py
+++ b/src/catalogue/models/bookmedia.py
@@ -7,13 +7,19 @@ from collections import namedtuple
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from slugify import slugify
-from mutagen import MutagenError
-
-from catalogue.fields import OverwriteStorage
+import mutagen
+from mutagen import id3
+from fnpdjango.storage import BofhFileSystemStorage
 
 
 def _file_upload_to(i, _n):
-    return 'book/%(ext)s/%(name)s.%(ext)s' % {'ext': i.ext(), 'name': slugify(i.name)}
+    name = i.book.slug
+    if i.index:
+        name += f'_{i.index:03d}'
+    if i.part_name:
+        name += f'_' + slugify(i.part_name)
+    ext = i.ext()
+    return f'book/{ext}/{name}.{ext}'
 
 
 class BookMedia(models.Model):
@@ -23,6 +29,7 @@ class BookMedia(models.Model):
         ('mp3', FileFormat(name='MP3', ext='mp3')),
         ('ogg', FileFormat(name='Ogg Vorbis', ext='ogg')),
         ('daisy', FileFormat(name='DAISY', ext='daisy.zip')),
+        ('audio.epub', FileFormat(name='EPUB+audio', ext='audio.epub')),
     ])
     format_choices = [(k, _('%s file' % t.name)) for k, t in formats.items()]
 
@@ -30,17 +37,20 @@ class BookMedia(models.Model):
     name = models.CharField(_('name'), max_length=512)
     part_name = models.CharField(_('part name'), default='', blank=True, max_length=512)
     index = models.IntegerField(_('index'), default=0)
-    file = models.FileField(_('file'), max_length=600, upload_to=_file_upload_to, storage=OverwriteStorage())
+    file = models.FileField(_('file'), max_length=600, upload_to=_file_upload_to, storage=BofhFileSystemStorage())
+    duration = models.IntegerField(null=True, blank=True)
     uploaded_at = models.DateTimeField(_('creation date'), auto_now_add=True, editable=False, db_index=True)
+    project_description = models.CharField(max_length=2048, blank=True)
+    project_icon = models.CharField(max_length=2048, blank=True)
     extra_info = models.TextField(_('extra information'), default='{}', editable=False)
     book = models.ForeignKey('Book', models.CASCADE, related_name='media')
     source_sha1 = models.CharField(null=True, blank=True, max_length=40, editable=False)
 
     def __str__(self):
-        return "%s (%s)" % (self.name, self.file.name.split("/")[-1])
+        return self.file.name.split("/")[-1]
 
     class Meta:
-        ordering = ('type', 'name')
+        ordering = ('type', 'index')
         verbose_name = _('book media')
         verbose_name_plural = _('book media')
         app_label = 'catalogue'
@@ -48,6 +58,17 @@ class BookMedia(models.Model):
     def get_extra_info_json(self):
         return json.loads(self.extra_info or '{}')
 
+    def get_nice_filename(self):
+        parts_count = 1 + type(self).objects.filter(book=self.book, type=self.type).exclude(pk=self.pk).count()
+
+        name = self.book.slug
+        if parts_count > 0:
+            name += f'_{self.index:03d}'
+        if self.part_name:
+            name += f'_' + slugify(self.part_name)
+        ext = self.ext()
+        return f'{name}.{ext}'
+
     def save(self, parts_count=None, *args, **kwargs):
         from catalogue.utils import ExistingFile, remove_zip
 
@@ -65,13 +86,9 @@ class BookMedia(models.Model):
             old = BookMedia.objects.get(pk=self.pk)
         except BookMedia.DoesNotExist:
             old = None
-        else:
-            # if name changed, change the file name, too
-            if slugify(self.name) != slugify(old.name):
-                self.file.save(None, ExistingFile(self.file.path), save=False)
 
         super(BookMedia, self).save(*args, **kwargs)
-
+        
         # remove the zip package for book with modified media
         if old:
             remove_zip("%s_%s" % (old.book.slug, old.type))
@@ -81,15 +98,19 @@ class BookMedia(models.Model):
         extra_info.update(self.read_meta())
         self.extra_info = json.dumps(extra_info)
         self.source_sha1 = self.read_source_sha1(self.file.path, self.type)
+        self.duration = self.read_duration()
         return super(BookMedia, self).save(*args, **kwargs)
 
+    def read_duration(self):
+        try:
+            return mutagen.File(self.file.path).info.length
+        except:
+            return None
+
     def read_meta(self):
         """
             Reads some metadata from the audiobook.
         """
-        import mutagen
-        from mutagen import id3
-
         artist_name = director_name = project = funded_by = license = ''
         if self.type == 'mp3':
             try:
@@ -103,7 +124,7 @@ class BookMedia(models.Model):
                 funded_by = ", ".join([
                     t.data.decode('utf-8') for t in audio.getall('PRIV')
                     if t.owner == 'wolnelektury.pl?funded_by'])
-            except MutagenError:
+            except mutagen.MutagenError:
                 pass
         elif self.type == 'ogg':
             try:
@@ -113,7 +134,7 @@ class BookMedia(models.Model):
                 license = ', '.join(audio.get('license', []))
                 project = ", ".join(audio.get('project', []))
                 funded_by = ", ".join(audio.get('funded_by', []))
-            except (MutagenError, AttributeError):
+            except (mutagen.MutagenError, AttributeError):
                 pass
         else:
             return {}
@@ -128,21 +149,18 @@ class BookMedia(models.Model):
         """
             Reads source file SHA1 from audiobok metadata.
         """
-        import mutagen
-        from mutagen import id3
-
         if filetype == 'mp3':
             try:
                 audio = id3.ID3(filepath)
                 return [t.data.decode('utf-8') for t in audio.getall('PRIV')
                         if t.owner == 'wolnelektury.pl?flac_sha1'][0]
-            except (MutagenError, IndexError):
+            except (mutagen.MutagenError, IndexError):
                 return None
         elif filetype == 'ogg':
             try:
                 audio = mutagen.File(filepath)
                 return audio.get('flac_sha1', [None])[0]
-            except (MutagenError, AttributeError, IndexError):
+            except (mutagen.MutagenError, AttributeError, IndexError):
                 return None
         else:
             return None