Download original pictures from the picasaweb

Even the google picasaweb API support up to 1600×1200, we can grab the original pictures by changing the URL of the picture.

20th line is the highlight. I found this hack after googling, but I forgot the URL. -_-

First you should have python and install the Google Data Library

Don’t forget to change the USER_ID and USER_PASSWORD with yours.

#!/usr/bin/env python

import gdata.photos.service
import gdata.media
import gdata.geo
import urllib
import os
import sys

URL_TO_GET_PHOTOS 	= '/data/feed/api/user/default/albumid/%s?kind=photo'
URL_TO_GET_TAGS 	= '/data/feed/api/user/default/albumid/%s/photoid/%s?kind=tag' 
URL_TO_GET_COMMENTS	= '/data/feed/api/user/default/albumid/%s/photoid/%s?kind=comment'

# Change the followings with yours
USER_ID				= 'YOUR_GMAIL_ID'
USER_PASSWORD		= 'YOUR_GMAIL_PASSWORD'


def download_file( url, dir_name ):
	"Download the data at URL to the current directory"
	basename = url[url.rindex('/') + 1:] # figure out a good name for the downloaded file.
	url = url.replace(basename, "d/"+basename)

	urllib.urlretrieve(url, dir_name+"/"+basename)

def connect_to_picasa( name, password ):
	gd_client = gdata.photos.service.PhotosService()
	gd_client.email = USER_ID
	gd_client.password = USER_PASSWORD
	gd_client.source = 'api-sample-google-com'
	gd_client.ProgrammaticLogin()

	return gd_client

def get_album_list( gd_client ):
	return gd_client.GetUserFeed()

def print_photo_list( albums ):
	for album in albums.entry:
		downloaded_photos = 0
		print 'Album: %s (%s)' % (album.title.text, album.numphotos.text)

		if not os.path.exists(album.title.text) :
			os.mkdir(album.title.text)

		photos = gd_client.GetFeed(URL_TO_GET_PHOTOS % (album.gphoto_id.text))

		for photo in photos.entry:
			download_file( photo.content.src, album.title.text )
			downloaded_photos += 1

			sys.stdout.write("\t%d/%s  %.1f %%\r" %(downloaded_photos, album.numphotos.text, 100.0*downloaded_photos/eval(album.numphotos.text)))
			sys.stdout.flush()

		print ""
		

if __name__ == '__main__':
	gd_client = connect_to_picasa( USER_ID, USER_PASSWORD )
	albums = get_album_list( gd_client )
	print_photo_list( albums )