def test_get_image_metadata_when_there_is_none(self):
with open(SOME_GIF, "r") as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(metadata, {})
def test_handles_oddly_malformed_metadata(self):
with open(MALFORMED_JPG, "r") as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(metadata["aperture"], None)
def add(request_format):
tag_names = request.form['tags'].split(' ')
url = request.form['url']
if url:
print 'fetching from remote url'
truck = ImageTruck.new_from_url(url)
elif request.files['file']:
image = request.files['file']
truck = ImageTruck.new_from_stream(image.stream, image.mimetype)
else:
abort(400)
metadata = ImageMetadata.image_metadata(truck.contents)
print 'potentially reorienting'
truck.contents = ReorientImage.reorient_image(truck.contents)
print 'uploading to s3'
truck.upload()
session = Client().session()
image = Image(filename=truck.calculate_filename(),
source_url=url,
description=request.form.get('description'),
title=request.form.get('title'),
**metadata)
album_id = request.form['album']
if album_id:
image.album_id = album_id
session.add(image)
image.add_tags(tag_names)
ResizeImage.make_resizes(image, truck)
if request_format == 'html':
return redirect(url_for('show_image', image_id=image.image_id))
elif request_format == 'json':
return {'url': truck.url()}
def process_image(self, image_contents_id):
session = Client().session()
contents = session.query(ImageContents).\
filter(ImageContents.image_contents_id == image_contents_id).\
one()
image = session.query(Image).\
filter(Image.image_id == contents.image_id).\
one()
truck = ImageTruck(
contents.contents, contents.content_type, image.source_url)
truck.filename = image.filename
metadata = ImageMetadata.image_metadata(truck.contents)
truck.contents = ReorientImage.reorient_image(truck.contents)
def after_upload(size):
redis.publish(REDIS_CHANNEL, json.dumps({
'task_id': self.request.id,
'suffix': size,
}))
ResizeImage.make_resizes(image, truck, after_upload)
print "uploading original image"
truck.upload()
redis.publish(REDIS_CHANNEL, json.dumps({
'task_id': self.request.id,
'suffix': '',
}))
delay(queued_tasks, Invalidate(), image.image_id)
for attr, value in metadata.iteritems():
setattr(image, attr, value)
session.add(image)
session.delete(contents)
def test_handles_oddly_malformed_metadata(self):
test_file = os.path.join(os.path.dirname(__file__),
'test_image_malformed_exif.jpg')
with open(test_file, 'r') as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(metadata['aperture'], None)
def test_get_image_metadata_when_there_is_none(self):
test_file = os.path.join(os.path.dirname(__file__),
'test_image_500x319.gif')
with open(test_file, 'r') as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(metadata, {})
def test_get_image_metadata(self):
test_file = os.path.join(os.path.dirname(__file__),
'test_image_5472x3648.jpg')
with open(test_file, 'r') as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(metadata, {
'camera': 'SAMSUNG NX210',
'photographed_at': '2013-05-03 09:17:02',
'aperture': '1/4.0',
'shutter_speed': '1/800',
'focal_length': 30,
'iso': 200,
})
def test_get_image_metadata(self):
with open(EXIF_JPG, "r") as fh:
contents = fh.read()
metadata = ImageMetadata.image_metadata(contents)
eq_(
metadata,
{
"camera": "SAMSUNG NX210",
"photographed_at": "2013-05-03 09:17:02",
"aperture": "1/4.5",
"shutter_speed": "1/800",
"focal_length": 30.0,
"iso": 200,
},
)
def test_calculate_shutter_speed(self):
eq_(ImageMetadata._calculate_shutter_speed(1, 800), '1/800')
eq_(ImageMetadata._calculate_shutter_speed(50, 10), '5')
