<s> from __future__ import division <EOL> import os <EOL> import re <EOL> import hashlib <EOL> from six . moves . urllib import parse as urlparse <EOL> from six . moves . urllib . request import urlopen <EOL> import PIL . Image <EOL> from django . core . files . uploadedfile import SimpleUploadedFile <EOL> from django . conf import settings <EOL> from django . db . models . fields . files import FieldFile , FileField <EOL> from django . utils . functional import cached_property <EOL> from django . utils . http import urlunquote_plus <EOL> from generic_plus . utils import get_relative_media_url , get_media_path <EOL> class VirtualFieldFile ( FieldFile ) : <EOL> def __init__ ( self , name , storage = None , upload_to = None ) : <EOL> super ( FieldFile , self ) . __init__ ( None , name ) <EOL> self . instance = None <EOL> self . field = FileField ( name = '<STR_LIT:file>' , upload_to = upload_to , storage = storage ) <EOL> self . storage = self . field . storage <EOL> self . _committed = True <EOL> def get_directory_name ( self ) : <EOL> return self . field . get_directory_name ( ) <EOL> def get_filename ( self , filename ) : <EOL> return self . field . get_filename ( filename ) <EOL> def generate_filename ( self , filename ) : <EOL> return self . field . generate_filename ( None , filename ) <EOL> def save ( self , * args , ** kwargs ) : <EOL> raise NotImplementedError <EOL> def delete ( self , * args , ** kwargs ) : <EOL> raise NotImplementedError <EOL> @ cached_property <EOL> def dimensions ( self ) : <EOL> try : <EOL> pil_image = PIL . Image . open ( self . path ) <EOL> except : <EOL> return ( <NUM_LIT:0> , <NUM_LIT:0> ) <EOL> else : <EOL> return pil_image . size <EOL> @ cached_property <EOL> def width ( self ) : <EOL> w , h = self . dimensions <EOL> return w <EOL> @ cached_property <EOL> def height ( self ) : <EOL> w , h = self . dimensions <EOL> return h <EOL> class ImageFile ( VirtualFieldFile ) : <EOL> _path = None <EOL> preview_image = None <EOL> metadata = None <EOL> def __init__ ( self , path , upload_to = None , preview_w = None , preview_h = None ) : <EOL> self . upload_to = upload_to <EOL> self . preview_width = preview_w <EOL> self . preview_height = preview_h <EOL> self . metadata = { } <EOL> if not path : <EOL> self . name = None <EOL> return <EOL> if '<STR_LIT:%>' in path : <EOL> path = urlunquote_plus ( path ) <EOL> if path . startswith ( settings . MEDIA_URL ) : <EOL> self . _path = get_relative_media_url ( path , clean_slashes = False ) <EOL> elif re . search ( r'<STR_LIT>' , path ) : <EOL> self . _path = self . download_image_url ( path ) <EOL> else : <EOL> abs_path = get_media_path ( path ) <EOL> if os . path . exists ( abs_path ) : <EOL> self . _path = get_relative_media_url ( abs_path ) <EOL> if not self . _path or not os . path . exists ( os . path . join ( settings . MEDIA_ROOT , self . _path ) ) : <EOL> self . name = None <EOL> return <EOL> super ( ImageFile , self ) . __init__ ( self . _path ) <EOL> if self : <EOL> self . preview_image = self . get_for_size ( '<STR_LIT>' ) <EOL> def download_image_url ( self , url ) : <EOL> from cropduster . models import StandaloneImage <EOL> from cropduster . views . forms import clean_upload_data <EOL> image_contents = urlopen ( url ) . read ( ) <EOL> md5_hash = hashlib . md5 ( ) <EOL> md5_hash . update ( image_contents ) <EOL> try : <EOL> standalone_image = StandaloneImage . objects . get ( md5 = md5_hash . hexdigest ( ) ) <EOL> except StandaloneImage . DoesNotExist : <EOL> pass <EOL> else : <EOL> return get_relative_media_url ( standalone_image . image . name ) <EOL> parse_result = urlparse . urlparse ( url ) <EOL> fake_upload = SimpleUploadedFile ( os . path . basename ( parse_result . path ) , image_contents ) <EOL> file_data = clean_upload_data ( { <EOL> '<STR_LIT:image>' : fake_upload , <EOL> '<STR_LIT>' : self . upload_to , <EOL> } ) <EOL> return get_relative_media_url ( file_data [ '<STR_LIT:image>' ] . name ) <EOL> def __nonzero__ ( self ) : <EOL> """<STR_LIT>""" <EOL> if not self . _path : <EOL> return False <EOL> return super ( ImageFile , self ) . __nonzero__ ( ) <EOL> def get_for_size ( self , size_slug = '<STR_LIT>' ) : <EOL> from cropduster . models import Image <EOL> image = Image . get_file_for_size ( self , size_slug ) <EOL> if size_slug == '<STR_LIT>' : <EOL> if not os . path . exists ( image . path ) : <EOL> Image . save_preview_file ( self , preview_w = self . preview_width , preview_h = self . preview_height ) <EOL> return image </s>
