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105 lines
4.0 KiB
Python
105 lines
4.0 KiB
Python
# This file is part of the Indico plugins.
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# Copyright (C) 2002 - 2022 CERN
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#
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# The Indico plugins are free software; you can redistribute
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# them and/or modify them under the terms of the MIT License;
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# see the LICENSE file for more details.
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import posixpath
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from flask import jsonify, request, session
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from flask_pluginengine import render_plugin_template
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from werkzeug.exceptions import BadRequest, NotFound
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from werkzeug.urls import url_parse
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from indico.core.config import config
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from indico.modules.events.management.controllers import RHManageEventBase
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from indico.web.rh import RH
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from indico.web.util import jsonify_template
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from indico_ursh import _
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from indico_ursh.util import is_configured, register_shortcut, request_short_url, strip_end
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from indico_ursh.views import WPShortenURLPage
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CUSTOM_SHORTCUT_ALPHABET = frozenset('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-')
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class RHGetShortURL(RH):
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"""Make a request to the URL shortening service"""
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@staticmethod
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def _resolve_full_url(original_url):
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if url_parse(original_url).host:
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return original_url
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original_url = original_url.lstrip('/')
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return posixpath.join(config.BASE_URL, original_url)
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@staticmethod
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def _check_host(full_url):
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if url_parse(full_url).host != url_parse(config.BASE_URL).host:
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raise BadRequest('Invalid host for URL shortening service')
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def _process(self):
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original_url = request.json.get('original_url')
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full_url = self._resolve_full_url(original_url)
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self._check_host(full_url)
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short_url = request_short_url(full_url)
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return jsonify(url=short_url)
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class RHShortURLPage(RH):
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"""Provide a simple page where users can submit a URL to be shortened"""
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def _process(self):
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if not is_configured():
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raise NotFound('Plugin is not configured')
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return WPShortenURLPage.render_template('ursh_shortener_page.html')
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class RHCustomShortURLPage(RHManageEventBase):
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"""Provide a simple page, where users can submit a URL to be shortened"""
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def _make_absolute_url(self, url):
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return posixpath.join(config.BASE_URL, url[1:]) if url.startswith('/') else url
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def _get_error_msg(self, result):
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if result['status'] == 409:
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return _('Shortcut already exists')
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elif result['status'] == 400:
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return _('Malformed shortcut')
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return result['error'].get('description')
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def _process_args(self):
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from indico_ursh.plugin import UrshPlugin
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super()._process_args()
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api_host = url_parse(UrshPlugin.settings.get('api_host'))
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self.ursh_host = strip_end(api_host.to_url(), api_host.path[1:]).rstrip('/') + '/'
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def _process_GET(self):
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original_url = self._make_absolute_url(request.args['original_url'])
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return WPShortenURLPage.render_template('ursh_custom_shortener_page.html',
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event=self.event,
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ursh_host=self.ursh_host,
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original_url=original_url,
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submitted=False,
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shortcut=None)
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def _process_POST(self):
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original_url = self._make_absolute_url(request.args['original_url'])
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shortcut = request.form['shortcut'].strip()
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if not (set(shortcut) <= CUSTOM_SHORTCUT_ALPHABET):
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raise BadRequest('Invalid shortcut')
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result = register_shortcut(original_url, shortcut, session.user)
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if result.get('error'):
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kwargs = {'success': False, 'msg': self._get_error_msg(result)}
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else:
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kwargs = {'success': True, 'shorturl': result['short_url']}
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return jsonify_template('ursh_custom_shortener_page.html', render_plugin_template,
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event=self.event, ursh_host=self.ursh_host, shortcut=shortcut,
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original_url=original_url, submitted=True, **kwargs)
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