view server_side/blog.py @ 215:e830a0c60d32

server side: added the security_limit to setParam - in addition to the check which is done by the core, libervia checks if the param to be modified was really part of the XML that has been returned by getParams with security_limit = 0.
author souliane <souliane@mailoo.org>
date Sat, 07 Sep 2013 02:07:07 +0200
parents b9edfa058786
children 6efd189e8d78
line wrap: on
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#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
Libervia: a Salut à Toi frontend
Copyright (C) 2011, 2012, 2013 Jérôme Poisson <goffi@goffi.org>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
"""

from server_side.html_tools import sanitizeHtml
from twisted.internet import reactor, defer
from twisted.web import server
from twisted.web.resource import Resource
from twisted.words.protocols.jabber.jid import JID
from datetime import datetime

class MicroBlog(Resource):
    isLeaf = True

    ERROR_TEMPLATE = """
                <html>
                <head>
                    <title>MICROBLOG ERROR</title>
                </head>
                <body>
                    <h1 style='text-align: center; color: red;'>%s</h1>
                </body>
                </html>
                """

    def __init__(self,host):
        self.host = host
        Resource.__init__(self)
        if not host.bridge.isConnected("libervia"): #FIXME: hard coded value for test
            host.bridge.connect("libervia")

    def render_GET(self, request):
        if not request.postpath:
            return MicroBlog.ERROR_TEMPLATE % "You must indicate a nickname"
        else:
            prof_requested = request.postpath[0]
            #TODO: char check: only use alphanumerical chars + some extra(_,-,...) here
            prof_found = self.host.bridge.getProfileName(prof_requested)
            if not prof_found or prof_found=='libervia':
                return MicroBlog.ERROR_TEMPLATE % "Invalid nickname"
            else:
                def got_jid(pub_jid_s):
                    pub_jid = JID(pub_jid_s)
                    d2 = defer.Deferred()
                    d2.addCallbacks(self.render_html_blog, self.render_error_blog, [request, prof_found], None, [request, prof_found], None)
                    self.host.bridge.getLastGroupBlogs(pub_jid.userhost(), 10, 'libervia', d2.callback, d2.errback)
                
                d1 = defer.Deferred()
                JID(self.host.bridge.asyncGetParamA('JabberID', 'Connection', 'value', prof_found, callback=d1.callback, errback=d1.errback))
                d1.addCallbacks(got_jid)

                return server.NOT_DONE_YET

    def render_html_blog(self, mblog_data, request, profile):
        user = sanitizeHtml(profile).encode('utf-8')
        request.write("""
            <html>
            <head>
                <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
                <link rel="stylesheet" type="text/css" href="../css/blog.css" />
                <title>%(user)s's microblog</title>
            </head>
            <body>
                <div class='mblog_title'>%(user)s</div>
            """ % {'user':user})
        #mblog_data.reverse()
        for entry in mblog_data:
            timestamp = float(entry.get('timestamp',0))
            _datetime = datetime.fromtimestamp(timestamp)
            request.write("<div class='mblog_content'><span class='mblog_timestamp'>%(date)s</span>%(content)s</div>" % {
                          'date':_datetime,
                          'content':sanitizeHtml(entry['content']).encode('utf-8')})
        request.write('</body></html>')
        request.finish()
        
    def render_error_blog(self, error, request, profile):
        request.write(MicroBlog.ERROR_TEMPLATE % "Can't access requested data")
        request.finish()