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url_composer.py
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url_composer.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# thumbor imaging service
# https://github.com/globocom/thumbor/wiki
# Licensed under the MIT license:
# http://www.opensource.org/licenses/mit-license
# Copyright (c) 2011 globo.com timehome@corp.globo.com
import optparse
import logging
from tornado.options import options, parse_config_file
from thumbor import __version__
from thumbor.utils import logger
from thumbor.crypto import Crypto
from thumbor.app import ThumborServiceApp
def main():
'''Converts a given url with the specified arguments.'''
parser = optparse.OptionParser(usage='thumbor-url [options] imageurl or type thumbor-url -h (--help) for help', description=__doc__, version=__version__)
parser.add_option('-k', '--key', dest='key', default=None, help = 'The security key to encrypt the url with [default: %default].' )
parser.add_option('-w', '--width', dest='width', type='int', default=0, help = 'The target width for the image [default: %default].' )
parser.add_option('-e', '--height', dest='height', type='int', default=0, help = 'The target height for the image [default: %default].' )
parser.add_option('-s', '--smart', action='store_true', dest='smart', default=False, help = 'Indicates that smart cropping should be used.' )
parser.add_option('-f', '--horizontal-flip', action='store_true', dest='horizontal_flip', default=False, help = 'Indicates that the image should be horizontally flipped.' )
parser.add_option('-v', '--vertical-flip', action='store_true', dest='vertical_flip', default=False, help = 'Indicates that the image should be vertically flipped.')
parser.add_option('-a', '--halign', dest='halign', default='center', help = 'The horizontal alignment to use for cropping [default: %default].' )
parser.add_option('-i', '--valign', dest='valign', default='middle', help = 'The vertical alignment to use for cropping [default: %default].' )
parser.add_option('-c', '--crop', dest='crop', default=None, help = 'The coordinates of the points to manual cropping in the format leftxtop:rightxbottom (100x200:400x500) [default: %default].' )
(parsed_options, arguments) = parser.parse_args()
if not arguments:
print 'Error: The image argument is mandatory. For more information type thumbor-url -h'
return
image_url = arguments[0]
if image_url.startswith('/'):
image_url = image_url[1:]
conf_file = ThumborServiceApp.get_conf_file('')
if conf_file:
print
print "USING CONFIGURATION FILE AT %s" % conf_file
print
parse_config_file(conf_file)
if not parsed_options.key and not conf_file:
print 'Error: The -k or --key argument is mandatory. For more information type thumbor-url -h'
return
security_key = options.SECURITY_KEY if not parsed_options.key else parsed_options.key
crypt = Crypto(security_key)
crop_left = crop_top = crop_right = crop_bottom = 0
if parsed_options.crop:
crops = parsed_options.crop.split(':')
crop_left, crop_top = crops[0].split('x')
crop_right, crop_bottom = crops[1].split('x')
opt = crypt.encrypt(parsed_options.width,
parsed_options.height,
parsed_options.smart,
parsed_options.horizontal_flip,
parsed_options.vertical_flip,
parsed_options.halign,
parsed_options.valign,
crop_left,
crop_top,
crop_right,
crop_bottom,
image_url)
url = '/%s/%s' % (opt, image_url)
print 'Encrypted URL: "%s" (without quotes)' % url
if __name__ == '__main__':
main()