def blob_exif(blob_key):
'''Extract EXIF data from the blob data.'''
keys = (
('make', 'Make', '?'),
('model', 'Model', '?'),
('datetime', 'DateTimeDigitized', '1990:01:01 00:00:00'),
('iso', 'ISOSpeedRatings', 0),
('focal_length', 'FocalLength', 0),
('lens', 'Lens', '?'),
('exposure_time', 'ExposureTime', 1),
('exposure_time1', 'ExposureTime', 1.0),
('aperture', ['ApertureValue', 'MaxApertureValue'], 0.0),
('copyright', 'Copyright', '')
)
data = {}
im = Image(blob_key=blob_key)
im.rotate(0)
im.execute_transforms(parse_source_metadata=True)
exif = im.get_original_metadata()
logging.info(exif)
for key, key_exif, default in keys:
if key == 'datetime':
dt = exif.get(key_exif, default)
data[key] = datetime.datetime.strptime(dt, '%Y:%m:%d %H:%M:%S')
elif key == 'focal_length':
data[key] = int(exif.get(key_exif, default))
elif key == 'exposure_time':
t = exif.get(key_exif, default)
if t == 0:
data[key] = t
else:
data[key] = int(round(1 / t))
elif key == 'aperture':
app, max_app = key_exif
aperture = exif.get(app, None)
aperture = exif.get(max_app, default) if not aperture else aperture
data[key] = aperture
else:
data[key] = exif.get(key_exif, default)
return data
def get(self):
url = "http://eatingstats.tumblr.com/tagged/beer/rss"
d = feedparser.parse(url)
articles = []
lastbeer = None
lastbeerPic = ""
beers = []
promile = 0
self.response.out.write("<!--")
for row in d.entries:
article = row['description'].encode('utf-8');
pictureUrl = re.search("(?P<url>https?://[^\s\"]+)", article).group("url")
result = urlfetch.fetch(pictureUrl)
if result.status_code == 200:
img = Image(image_data=result.content);
img.rotate(0)
img.execute_transforms(parse_source_metadata=True)
meta = img.get_original_metadata()
self.response.out.write(meta)
if 'DateCreated' in meta:
#date like 2012:07:18 17:35:56
date = time.strptime(meta['DateCreated'], "%Y:%m:%d %H:%M:%S")
else:
#fetching the tiem from the image metadata failed. so we take the published
#date from the rss feed
date = row.published_parsed
self.response.out.write(date)
if lastbeer == None:
lastbeer = date
lastbeerPic = pictureUrl
promile += alcoholBeer / (0.7*weightPhil)
else:
delta = abs(time.mktime(lastbeer) - time.mktime(date))
self.response.out.write("since the last beer: "+str(delta))
if delta > 12 * 60 * 60:
break;
promile += alcoholBeer / (0.7*weightPhil)
if delta > 2 * 60 * 60:
timeToReduceAlcohol = (delta - 2 * 60 * 60) #for two hours there will be no reduction of blood alcohol content
reducedAlcoholByHourInGram = 0.1 * weightPhil
reducedAlcoholSinceLastBeer = delta/3600 * reducedAlcoholByHourInGram * 0.08
if reducedAlcoholSinceLastBeer < alcoholBeer / (0.7*weightPhil):
promile += alcoholBeer / (0.7*weightPhil) - reducedAlcoholSinceLastBeer
self.response.out.write("current promille: "+str(promile))
beers.append(date)
articles.append(pictureUrl)
self.response.out.write("-->")
word = ""
for k,v in sorted(promilToWords.items()):
if k > promile * 10 :
word = v
break
self.response.out.write("<center><h1>Phil "+word+"!</h1>")
self.response.out.write("<p>"+time.strftime('At the %d, %b %Y',beers[0])+" with "+str(round(promile/10, 4))+" percent <a href=\"http://en.wikipedia.org/wiki/Blood_alcohol_content\">blood alcohol content.</a></p>")
self.response.out.write("<br /><img src=\""+lastbeerPic+"\" alt=\"last beer of phil\" /></center>")
self.response.out.write("<a href=\"https://github.com/leobuettiker/whenwasphildrunk\"><img style=\"position: absolute; top: 0; right: 0; border: 0;\" src=\"https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png\" alt=\"Fork me on GitHub\"></a>")
def post(self):
img = Image(self.request.get('file'))
degrees = int(self.request.get('degrees', '90'))
img.rotate(degrees)
rotated = img.execute_transforms()
self.render(image=rotated)
