def _decode(self, data):
if is_text(data) and data.startswith('data:'):
# base64 encoded file - decode
format, datastr = data.split(';base64,') # format ~= data:image/X,
ext = format.split('/')[-1] # guess file extension
if ext[:3] == 'svg':
ext = 'svg'
data = ContentFile(base64.b64decode(datastr),
name='{}.{}'.format(uuid.uuid4(), ext))
elif is_text(data) and data.startswith('http'):
raise SkipField()
return data
def from_native(self, data):
if isinstance(data, basestring) and data.startswith('data:application/pdf'):
pdfformat, pdfstr = data.split(';base64,') # format ~= data:image/X,
ext = pdfformat.split('/')[-1] # guess file extension
data = ContentFile(base64.b64decode(pdfstr), name=str(uuid.uuid4()) + "." + ext)
if isinstance(data, basestring) and data.startswith('data:image'):
# base64 encoded image - decode
format, imgstr = data.split(';base64,') # format ~= data:image/X,
ext = format.split('/')[-1] # guess file extension
raw_data = ContentFile(base64.b64decode(imgstr), name='temp.' + ext)
img = Image.open(raw_data)
output = StringIO.StringIO() #temporarily mess w/ image in memory
t_dim = (1600,1600)
i_dim = img.size
compare_image_to_thumb = [(i_dim > t_dim) for i_dim, t_dim in zip(i_dim,t_dim)]
if True in compare_image_to_thumb:
t_dim = (1600,1600) #TODO: Remove stupid repeat variable
img.thumbnail(t_dim, Image.ANTIALIAS)
# try to get image exif and flip here on the server
try:
for orientation in ExifTags.TAGS.keys() :
if ExifTags.TAGS[orientation] == 'Orientation' : break
imgExif = img._getexif()
if imgExif is not None :
exif = dict(imgExif.items())
if exif[orientation] == 3 :
img = img.rotate(180, expand=True)
elif exif[orientation] == 6 :
img = img.rotate(-90, expand=True)
elif exif[orientation] == 8 :
img = img.rotate(90, expand=True)
except:
traceback.print_exc()
img.save(output,'png')
output.seek(0)
converted_data = output.read()
data = ContentFile(converted_data, name=str(uuid.uuid4()) + "." + ext)
return super(Base64FileField, self).from_native(data)
def _decode(self, data):
if isinstance(data, str) and data.startswith("data:"):
# base64 encoded file - decode
# format ~= data:image/X,
format, datastr = data.split(";base64,")
ext = format.split("/")[-1] # guess file extension
if ext[:3] == "svg":
ext = "svg"
data = ContentFile(
base64.b64decode(datastr), name="{}.{}".format(uuid.uuid4(), ext)
)
elif isinstance(data, str) and data.startswith("http"):
raise SkipField()
return data
def _decode(self, data):
if isinstance(data, text_type) and data.startswith('data:'):
# base64 encoded file - decode
format, datastr = data.split(';base64,') # format ~= data:image/X,
ext = format.split('/')[-1] # guess file extension
if ext[:3] == 'svg':
ext = 'svg'
data = ContentFile(base64.b64decode(datastr),
name='{}.{}'.format(uuid.uuid4(), ext))
logger.debug("Data as string?")
logger.debug(data[0:10])
elif isinstance(data, text_type) and data.startswith('http'):
logger.debug("FAIL")
raise SkipField()
elif isinstance(data, text_type):
logger.debug('WTF - last resort')
data = ContentFile(base64.b64decode(data),
name='{}.{}'.format(uuid.uuid4(), 'm4a'))
return data
