src/catalogue/management/commands/checkcovers.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from optparse import make_option
   6 from django.contrib.sites.models import Site
   7 from django.core.management.base import BaseCommand
   8 from catalogue import app_settings
   9 from django.utils.functional import lazy
  10
  11
  12 def ancestor_has_cover(book):
  13     while book.parent:
  14         book = book.parent
  15         if book.extra_info.get('cover_url'):
  16             return True
  17     return False
  18
  19
  20 current_domain = lazy(lambda: Site.objects.get_current().domain, str)()
  21 def full_url(obj):
  22     return 'http://%s%s' % (
  23                 current_domain,
  24                 obj.get_absolute_url())
  25
  26
  27 class Command(BaseCommand):
  28     option_list = BaseCommand.option_list + (
  29         make_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
  30             help='Suppress output'),
  31     )
  32     help = 'Checks cover sources and licenses.'
  33
  34     def handle(self, **options):
  35         from collections import defaultdict
  36         import re
  37         from django.db import transaction
  38         from catalogue.models import Book
  39
  40         verbose = options['verbose']
  41
  42         without_cover = []
  43         with_ancestral_cover = []
  44         not_redakcja = []
  45         bad_license = defaultdict(list)
  46         no_license = []
  47
  48         re_license = re.compile(ur'.*,\s*(CC.*)')
  49
  50         redakcja_url = app_settings.REDAKCJA_URL
  51         good_license = re.compile("(%s)" % ")|(".join(
  52                             app_settings.GOOD_LICENSES))
  53
  54         with transaction.commit_on_success():
  55             for book in Book.objects.all().order_by('slug').iterator():
  56                 extra_info = book.extra_info
  57                 if not extra_info.get('cover_url'):
  58                     if ancestor_has_cover(book):
  59                         with_ancestral_cover.append(book)
  60                     else:
  61                         without_cover.append(book)
  62                 else:
  63                     if not extra_info.get('cover_source', ''
  64                                 ).startswith(redakcja_url):
  65                         not_redakcja.append(book)
  66                     match = re_license.match(extra_info.get('cover_by', ''))
  67                     if match:
  68                         if not good_license.match(match.group(1)):
  69                             bad_license[match.group(1)].append(book)
  70                     else:
  71                         no_license.append(book)
  72
  73         print """%d books with no covers, %d with inherited covers.
  74 Bad licenses used: %s (%d covers without license).
  75 %d covers not from %s.
  76 """ % (
  77             len(without_cover),
  78             len(with_ancestral_cover),
  79             ", ".join(sorted(bad_license.keys())) or "none",
  80             len(no_license),
  81             len(not_redakcja),
  82             redakcja_url,
  83             )
  84
  85         if verbose:
  86             if bad_license:
  87                 print
  88                 print "Bad license:"
  89                 print "============"
  90                 for lic, books in bad_license.items():
  91                     print
  92                     print lic
  93                     for book in books:
  94                         print full_url(book)
  95
  96             if no_license:
  97                 print
  98                 print "No license:"
  99                 print "==========="
 100                 for book in no_license:
 101                     print
 102                     print full_url(book)
 103                     print book.extra_info.get('cover_by')
 104                     print book.extra_info.get('cover_source')
 105                     print book.extra_info.get('cover_url')
 106
 107             if not_redakcja:
 108                 print
 109                 print "Not from Redakcja or source missing:"
 110                 print "===================================="
 111                 for book in not_redakcja:
 112                     print
 113                     print full_url(book)
 114                     print book.extra_info.get('cover_by')
 115                     print book.extra_info.get('cover_source')
 116                     print book.extra_info.get('cover_url')
 117
 118             if without_cover:
 119                 print
 120                 print "No cover:"
 121                 print "========="
 122                 for book in without_cover:
 123                     print full_url(book)
 124
 125             if with_ancestral_cover:
 126                 print
 127                 print "With ancestral cover:"
 128                 print "====================="
 129                 for book in with_ancestral_cover:
 130                     print full_url(book)