fix stupid bug

[wolnelektury.git] / src / catalogue / fields.py

diff --git a/src/catalogue/fields.py b/src/catalogue/fields.py
index bc05aa3..1ed34e2 100644 (file)
--- a/src/catalogue/fields.py
+++ b/src/catalogue/fields.py
@@ -4,11 +4,12 @@
 #
 from django.conf import settings
 from django.core.files import File
+from django.core.files.storage import FileSystemStorage
 from django.db import models
 from django.db.models.fields.files import FieldFile
 from catalogue import app_settings
 from catalogue.constants import LANGUAGES_3TO2
-from catalogue.utils import remove_zip, truncate_html_words, gallery_path
+from catalogue.utils import remove_zip, truncate_html_words, gallery_path, gallery_url
 from celery.task import Task, task
 from celery.utils.log import get_task_logger
 from waiter.utils import clear_cache
@@ -27,6 +28,14 @@ class EbookFieldFile(FieldFile):
         """Builds the ebook in a delayed task."""
         return self.field.builder.delay(self.instance, self.field.attname)
 
+    def get_url(self):
+        return self.instance.media_url(self.field.attname.split('_')[0])
+
+    def set_readable(self, readable):
+        import os
+        permissions = 0o644 if readable else 0o600
+        os.chmod(self.path, permissions)
+
 
 class EbookField(models.FileField):
     """Represents an ebook file field, attachable to a model."""
@@ -90,10 +99,15 @@ class BuildEbook(Task):
         obj.flush_includes()
         return ret
 
+    def set_file_permissions(self, fieldfile):
+        if fieldfile.instance.preview:
+            fieldfile.set_readable(False)
+
     def build(self, fieldfile):
         book = fieldfile.instance
         out = self.transform(book.wldocument(), fieldfile)
         fieldfile.save(None, File(open(out.get_filename())), save=False)
+        self.set_file_permissions(fieldfile)
         if book.pk is not None:
             type(book).objects.filter(pk=book.pk).update(**{
                 fieldfile.field.attname: fieldfile
@@ -130,7 +144,15 @@ class BuildPdf(BuildEbook):
 class BuildEpub(BuildEbook):
     @staticmethod
     def transform(wldoc, fieldfile):
-        return wldoc.as_epub(cover=True)
+        return wldoc.as_epub(cover=True, ilustr_path=gallery_path(wldoc.book_info.url.slug))
+
+
+@BuildEbook.register('mobi')
+@task(ignore_result=True)
+class BuildMobi(BuildEbook):
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        return wldoc.as_mobi(cover=True, ilustr_path=gallery_path(wldoc.book_info.url.slug))
 
 
 @BuildEbook.register('html')
@@ -145,9 +167,7 @@ class BuildHtml(BuildEbook):
 
         book = fieldfile.instance
 
-        html_output = self.transform(
-                        book.wldocument(parse_dublincore=False),
-                        fieldfile)
+        html_output = self.transform(book.wldocument(parse_dublincore=False), fieldfile)
 
         # Delete old fragments, create from scratch if necessary.
         book.fragments.all().delete()
@@ -162,6 +182,7 @@ class BuildHtml(BuildEbook):
                 lang = None
 
             fieldfile.save(None, ContentFile(html_output.get_string()), save=False)
+            self.set_file_permissions(fieldfile)
             type(book).objects.filter(pk=book.pk).update(**{
                 fieldfile.field.attname: fieldfile
             })
@@ -186,6 +207,7 @@ class BuildHtml(BuildEbook):
                             tag.name = theme_name
                             setattr(tag, "name_%s" % lang, theme_name)
                             tag.sort_key = sortify(theme_name.lower())
+                            tag.for_books = True
                             tag.save()
                         themes.append(tag)
                     elif lang is not None:
@@ -207,20 +229,59 @@ class BuildHtml(BuildEbook):
 
                 new_fragment.save()
                 new_fragment.tags = set(meta_tags + themes)
+                for theme in themes:
+                    if not theme.for_books:
+                        theme.for_books = True
+                        theme.save()
             book.html_built.send(sender=type(self), instance=book)
             return True
         return False
 
+    @staticmethod
+    def transform(wldoc, fieldfile):
+        # ugly, but we can't use wldoc.book_info here
+        from librarian import DCNS
+        url_elem = wldoc.edoc.getroot().find('.//' + DCNS('identifier.url'))
+        if url_elem is None:
+            gallery = ''
+        else:
+            gallery = gallery_url(slug=url_elem.text.rsplit('/', 1)[1])
+        return wldoc.as_html(options={'gallery': "'%s'" % gallery})
+
+
+class BuildCover(BuildEbook):
+    def set_file_permissions(self, fieldfile):
+        pass
+
 
 @BuildEbook.register('cover_thumb')
 @task(ignore_result=True)
-class BuildCoverThumb(BuildEbook):
+class BuildCoverThumb(BuildCover):
     @classmethod
     def transform(cls, wldoc, fieldfile):
         from librarian.cover import WLCover
         return WLCover(wldoc.book_info, height=193).output_file()
 
 
+@BuildEbook.register('cover_api_thumb')
+@task(ignore_result=True)
+class BuildCoverApiThumb(BuildCover):
+    @classmethod
+    def transform(cls, wldoc, fieldfile):
+        from librarian.cover import WLNoBoxCover
+        return WLNoBoxCover(wldoc.book_info, height=500).output_file()
+
+
+@BuildEbook.register('simple_cover')
+@task(ignore_result=True)
+class BuildSimpleCover(BuildCover):
+    @classmethod
+    def transform(cls, wldoc, fieldfile):
+        from librarian.cover import WLNoBoxCover
+        return WLNoBoxCover(wldoc.book_info, height=1000).output_file()
+
+
+# not used, but needed for migrations
 class OverwritingFieldFile(FieldFile):
     """
         Deletes the old file before saving the new one.
@@ -236,3 +297,10 @@ class OverwritingFieldFile(FieldFile):
 
 class OverwritingFileField(models.FileField):
     attr_class = OverwritingFieldFile
+
+
+class OverwriteStorage(FileSystemStorage):
+
+    def get_available_name(self, name, max_length=None):
+        self.delete(name)
+        return name