# GNU MediaGoblin -- federated, autonomous media hosting
-# Copyright (C) 2011 MediaGoblin contributors. See AUTHORS.
+# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
import Image
import os
+import logging
from mediagoblin import mg_globals as mgg
-
from mediagoblin.processing import BadMediaFail, \
- create_pub_filepath, THUMB_SIZE, MEDIUM_SIZE
+ create_pub_filepath
+from mediagoblin.tools.exif import exif_fix_image_orientation, \
+ extract_exif, clean_exif, get_gps_data, get_useful
+
+_log = logging.getLogger(__name__)
+
+SUPPORTED_FILETYPES = ['png', 'gif', 'jpg', 'jpeg']
+
+
+def sniff_handler(media_file, **kw):
+ if kw.get('media') is not None: # That's a double negative!
+ name, ext = os.path.splitext(kw['media'].filename)
+ clean_ext = ext[1:].lower() # Strip the . from ext and make lowercase
-################################
-# Media processing initial steps
-################################
+ _log.debug('name: {0}\next: {1}\nlower_ext: {2}'.format(
+ name,
+ ext,
+ clean_ext))
+
+ if clean_ext in SUPPORTED_FILETYPES:
+ _log.info('Found file extension in supported filetypes')
+ return True
+ else:
+ _log.debug('Media present, extension not found in {0}'.format(
+ SUPPORTED_FILETYPES))
+ else:
+ _log.warning('Need additional information (keyword argument \'media\')'
+ ' to be able to handle sniffing')
+
+ return False
def process_image(entry):
basename = os.path.split(filename_bits[0])[1]
extension = filename_bits[1].lower()
+ # EXIF extraction
+ exif_tags = extract_exif(queued_filename)
+ gps_data = get_gps_data(exif_tags)
+
try:
thumb = Image.open(queued_filename)
except IOError:
raise BadMediaFail()
- thumb.thumbnail(THUMB_SIZE, Image.ANTIALIAS)
+ thumb = exif_fix_image_orientation(thumb, exif_tags)
+
+ thumb.thumbnail(
+ (mgg.global_config['media:thumb']['max_width'],
+ mgg.global_config['media:thumb']['max_height']),
+ Image.ANTIALIAS)
# Copy the thumb to the conversion subdir, then remotely.
thumb_filename = 'thumbnail' + extension
thumb_filepath = create_pub_filepath(entry, thumb_filename)
+
tmp_thumb_filename = os.path.join(
conversions_subdir, thumb_filename)
+
with file(tmp_thumb_filename, 'w') as thumb_file:
thumb.save(thumb_file)
+
mgg.public_store.copy_local_to_storage(
tmp_thumb_filename, thumb_filepath)
# file, a `medium.jpg` files is created and later associated with the media
# entry.
medium = Image.open(queued_filename)
- medium_processed = False
- if medium.size[0] > MEDIUM_SIZE[0] or medium.size[1] > MEDIUM_SIZE[1]:
- medium.thumbnail(MEDIUM_SIZE, Image.ANTIALIAS)
+ # Fix orientation
+ medium = exif_fix_image_orientation(medium, exif_tags)
- medium_filename = 'medium' + extension
- medium_filepath = create_pub_filepath(entry, medium_filename)
- tmp_medium_filename = os.path.join(
- conversions_subdir, medium_filename)
+ if medium.size[0] > mgg.global_config['media:medium']['max_width'] \
+ or medium.size[1] > mgg.global_config['media:medium']['max_height']:
+ medium.thumbnail(
+ (mgg.global_config['media:medium']['max_width'],
+ mgg.global_config['media:medium']['max_height']),
+ Image.ANTIALIAS)
- with file(tmp_medium_filename, 'w') as medium_file:
- medium.save(medium_file)
+ medium_filename = 'medium' + extension
+ medium_filepath = create_pub_filepath(entry, medium_filename)
- mgg.public_store.copy_local_to_storage(
- tmp_medium_filename, medium_filepath)
+ tmp_medium_filename = os.path.join(
+ conversions_subdir, medium_filename)
- medium_processed = True
+ with file(tmp_medium_filename, 'w') as medium_file:
+ medium.save(medium_file)
+
+ mgg.public_store.copy_local_to_storage(
+ tmp_medium_filename, medium_filepath)
# we have to re-read because unlike PIL, not everything reads
# things in string representation :)
with queued_file:
#create_pub_filepath(entry, queued_filepath[-1])
- original_filepath = create_pub_filepath(entry, basename + extension)
+ original_filepath = create_pub_filepath(entry, basename + extension)
with mgg.public_store.get_file(original_filepath, 'wb') \
as original_file:
original_file.write(queued_file.read())
+ # Remove queued media file from storage and database
mgg.queue_store.delete_file(queued_filepath)
entry.queued_media_file = []
+
+ # Insert media file information into database
media_files_dict = entry.setdefault('media_files', {})
media_files_dict['thumb'] = thumb_filepath
media_files_dict['original'] = original_filepath
- if medium_processed:
- media_files_dict['medium'] = medium_filepath
+ media_files_dict['medium'] = medium_filepath
+
+ # Insert exif data into database
+ media_data = entry.setdefault('media_data', {})
+ media_data['exif'] = {
+ 'clean': clean_exif(exif_tags)}
+ media_data['exif']['useful'] = get_useful(
+ media_data['exif']['clean'])
+ media_data['gps'] = gps_data
# clean up workbench
workbench.destroy_self()
+
+if __name__ == '__main__':
+ import sys
+ import pprint
+
+ pp = pprint.PrettyPrinter()
+
+ result = extract_exif(sys.argv[1])
+ gps = get_gps_data(result)
+ clean = clean_exif(result)
+ useful = get_useful(clean)
+
+ print pp.pprint(
+ clean)
projects / mediagoblin.git / blobdiff