def shorten():
url = request.form.get('url')
if url is None:
error = 'missing required param'
signals.link_refused.send(g.sender(), error=error)
return jsonify(error=error), 400
elif len(url) >= 2000:
error = 'url too long'
signals.link_refused.send(g.sender(), error=error)
return jsonify(error=error), 400
elif not re.match(url_re, url):
error = 'invalid url'
signals.link_refused.send(g.sender(), error=error)
return jsonify(error=error), 400
elif canonical_url(url) in app.config['DOMAIN_BLACKLIST']:
error = 'blacklisted domain'
signals.link_refused.send(g.sender(), error=error)
return jsonify(error=error), 403
id36 = Links.new(url, request.remote_addr)
if id36 is None:
return jsonify(error='server error'), 500
short_url = url_for('shortened', id=id36, _external=True)
return jsonify(url=short_url)
def shortened(id):
link = Links.get(id)
if link is None:
abort(404)
elif not link['active']:
signals.disabled_link_visited.send(g.sender(), request=request)
return render_template('disabled.html'), 410
signals.link_visited.send(g.sender(), request=request)
return redirect(link['target']), 301
def not_found(error):
signals.not_found.send(g.sender(), request=request)
return render_template('404.html'), 404
def server_error(error):
signals.server_error.send(g.sender(), request=request)
return render_template('500.html'), 500