root / invitations / invitations.py @ 4f8e7c6d
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1 | f1bb3880 | Georgios Gousios | # vim: set fileencoding=utf-8 :
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2 | 48130e66 | Georgios Gousios | # Copyright 2011 GRNET S.A. All rights reserved.
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3 | 48130e66 | Georgios Gousios | #
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4 | 48130e66 | Georgios Gousios | # Redistribution and use in source and binary forms, with or without
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5 | 48130e66 | Georgios Gousios | # modification, are permitted provided that the following conditions
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6 | 48130e66 | Georgios Gousios | # are met:
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7 | 48130e66 | Georgios Gousios | #
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8 | 48130e66 | Georgios Gousios | # 1. Redistributions of source code must retain the above copyright
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9 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer.
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10 | 48130e66 | Georgios Gousios | #
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11 | 48130e66 | Georgios Gousios | # 2. Redistributions in binary form must reproduce the above copyright
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12 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer in the
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13 | 48130e66 | Georgios Gousios | # documentation and/or other materials provided with the distribution.
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14 | 48130e66 | Georgios Gousios | #
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15 | 48130e66 | Georgios Gousios | # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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16 | 48130e66 | Georgios Gousios | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 | 48130e66 | Georgios Gousios | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 | 48130e66 | Georgios Gousios | # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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19 | 48130e66 | Georgios Gousios | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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20 | 48130e66 | Georgios Gousios | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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21 | 48130e66 | Georgios Gousios | # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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22 | 48130e66 | Georgios Gousios | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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23 | 48130e66 | Georgios Gousios | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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24 | 48130e66 | Georgios Gousios | # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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25 | 48130e66 | Georgios Gousios | # SUCH DAMAGE.
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26 | 48130e66 | Georgios Gousios | #
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27 | 48130e66 | Georgios Gousios | # The views and conclusions contained in the software and documentation are
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28 | 48130e66 | Georgios Gousios | # those of the authors and should not be interpreted as representing official
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29 | 48130e66 | Georgios Gousios | # policies, either expressed or implied, of GRNET S.A.
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30 | 48130e66 | Georgios Gousios | |
31 | 48130e66 | Georgios Gousios | |
32 | e6d6603a | Georgios Gousios | from datetime import timedelta |
33 | 0fbab7db | Vangelis Koukis | import datetime |
34 | e6d6603a | Georgios Gousios | import base64 |
35 | 3b09ff22 | Georgios Gousios | import urllib |
36 | 4f8e7c6d | Georgios Gousios | import re |
37 | e6d6603a | Georgios Gousios | |
38 | 03e70572 | Georgios Gousios | from django.conf import settings |
39 | 566cd8b2 | Georgios Gousios | from django.core.exceptions import ValidationError |
40 | 03e70572 | Georgios Gousios | from django.db import transaction |
41 | 4f8e7c6d | Georgios Gousios | from django.http import HttpResponse, HttpResponseRedirect, HttpResponseBadRequest, HttpResponseServerError |
42 | a640b50d | Georgios Gousios | from django.template.context import RequestContext |
43 | 2a0eee64 | Georgios Gousios | from django.template.loader import render_to_string |
44 | 566cd8b2 | Georgios Gousios | from django.core.validators import validate_email |
45 | a640b50d | Georgios Gousios | from django.views.decorators.csrf import csrf_protect |
46 | b6b88056 | Kostas Papadimitriou | from django.utils.translation import ugettext as _ |
47 | 566cd8b2 | Georgios Gousios | |
48 | d028ab18 | Georgios Gousios | from synnefo.logic.email_send import send_async |
49 | 03e70572 | Georgios Gousios | from synnefo.api.common import method_not_allowed |
50 | 03e70572 | Georgios Gousios | from synnefo.db.models import Invitations, SynnefoUser |
51 | d028ab18 | Georgios Gousios | from synnefo.logic import users, log |
52 | e6d6603a | Georgios Gousios | |
53 | e6d6603a | Georgios Gousios | from Crypto.Cipher import AES |
54 | 03e70572 | Georgios Gousios | |
55 | d028ab18 | Georgios Gousios | _logger = log.get_logger("synnefo.invitations")
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56 | f1bb3880 | Georgios Gousios | |
57 | e6d6603a | Georgios Gousios | def process_form(request): |
58 | a640b50d | Georgios Gousios | errors = [] |
59 | 566cd8b2 | Georgios Gousios | valid_inv = filter(lambda x: x.startswith("name_"), request.POST.keys()) |
60 | ecb4680f | Georgios Gousios | invitation = None
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61 | 566cd8b2 | Georgios Gousios | |
62 | 566cd8b2 | Georgios Gousios | for inv in valid_inv: |
63 | 566cd8b2 | Georgios Gousios | (name, inv_id) = inv.split('_')
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64 | 566cd8b2 | Georgios Gousios | |
65 | 05310288 | Georgios Gousios | email = ""
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66 | 05310288 | Georgios Gousios | name = ""
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67 | 566cd8b2 | Georgios Gousios | try:
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68 | 566cd8b2 | Georgios Gousios | email = request.POST['email_' + inv_id]
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69 | 566cd8b2 | Georgios Gousios | name = request.POST[inv] |
70 | 566cd8b2 | Georgios Gousios | |
71 | 566cd8b2 | Georgios Gousios | validate_name(name) |
72 | a640b50d | Georgios Gousios | validate_email(email) |
73 | a640b50d | Georgios Gousios | |
74 | ecb4680f | Georgios Gousios | invitation = add_invitation(request.user, name, email) |
75 | ecb4680f | Georgios Gousios | send_invitation(invitation) |
76 | a640b50d | Georgios Gousios | |
77 | d028ab18 | Georgios Gousios | except (InvitationException, ValidationError) as e: |
78 | d028ab18 | Georgios Gousios | errors += ["Invitation to %s <%s> not sent. Reason: %s" %
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79 | b6b88056 | Kostas Papadimitriou | (name, email, e.messages[0])]
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80 | 566cd8b2 | Georgios Gousios | except Exception as e: |
81 | ecb4680f | Georgios Gousios | remove_invitation(invitation) |
82 | d028ab18 | Georgios Gousios | _logger.exception(e) |
83 | ecb4680f | Georgios Gousios | errors += ["Invitation to %s <%s> could not be sent. Reason: %s" %
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84 | ecb4680f | Georgios Gousios | (name, email, e)] |
85 | a640b50d | Georgios Gousios | |
86 | a640b50d | Georgios Gousios | respose = None
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87 | a640b50d | Georgios Gousios | if errors:
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88 | a640b50d | Georgios Gousios | data = render_to_string('invitations.html',
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89 | a640b50d | Georgios Gousios | {'invitations': invitations_for_user(request),
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90 | 8f50f91c | Kostas Papadimitriou | 'errors': errors,
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91 | 8f50f91c | Kostas Papadimitriou | 'invitations_left': get_invitations_left(request.user)
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92 | 8f50f91c | Kostas Papadimitriou | }, |
93 | a640b50d | Georgios Gousios | context_instance=RequestContext(request)) |
94 | a640b50d | Georgios Gousios | response = HttpResponse(data) |
95 | 25c36228 | Georgios Gousios | _logger.warn("Error adding invitation %s -> %s: %s"%(request.user.uniq,
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96 | 25c36228 | Georgios Gousios | email, errors)) |
97 | a640b50d | Georgios Gousios | else:
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98 | 848e6d10 | Kostas Papadimitriou | # form submitted
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99 | 848e6d10 | Kostas Papadimitriou | data = render_to_string('invitations.html',
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100 | 848e6d10 | Kostas Papadimitriou | {'invitations': invitations_for_user(request),
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101 | 848e6d10 | Kostas Papadimitriou | 'invitations_left': get_invitations_left(request.user)
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102 | 848e6d10 | Kostas Papadimitriou | }, |
103 | 848e6d10 | Kostas Papadimitriou | context_instance=RequestContext(request)) |
104 | 848e6d10 | Kostas Papadimitriou | response = HttpResponse(data) |
105 | 25c36228 | Georgios Gousios | _logger.info("Added invitation %s -> %s"%(request.user.uniq, email))
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106 | 566cd8b2 | Georgios Gousios | |
107 | 566cd8b2 | Georgios Gousios | return response
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108 | 566cd8b2 | Georgios Gousios | |
109 | f1bb3880 | Georgios Gousios | |
110 | 566cd8b2 | Georgios Gousios | def validate_name(name): |
111 | 68a77896 | Georgios Gousios | if name is None or name.strip() == '': |
112 | a640b50d | Georgios Gousios | raise ValidationError("Name is empty") |
113 | a640b50d | Georgios Gousios | |
114 | a640b50d | Georgios Gousios | if name.find(' ') is -1: |
115 | b6b88056 | Kostas Papadimitriou | raise ValidationError(_("Name must contain at least one space")) |
116 | 03e70572 | Georgios Gousios | |
117 | 566cd8b2 | Georgios Gousios | return True |
118 | 566cd8b2 | Georgios Gousios | |
119 | f1bb3880 | Georgios Gousios | |
120 | 566cd8b2 | Georgios Gousios | def invitations_for_user(request): |
121 | 566cd8b2 | Georgios Gousios | invitations = [] |
122 | 566cd8b2 | Georgios Gousios | |
123 | 566cd8b2 | Georgios Gousios | for inv in Invitations.objects.filter(source = request.user): |
124 | e6d6603a | Georgios Gousios | invitation = {} |
125 | 566cd8b2 | Georgios Gousios | |
126 | e6d6603a | Georgios Gousios | invitation['sourcename'] = inv.source.realname
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127 | e6d6603a | Georgios Gousios | invitation['source'] = inv.source.uniq
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128 | e6d6603a | Georgios Gousios | invitation['targetname'] = inv.target.realname
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129 | e6d6603a | Georgios Gousios | invitation['target'] = inv.target.uniq
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130 | e6d6603a | Georgios Gousios | invitation['accepted'] = inv.accepted
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131 | e6d6603a | Georgios Gousios | invitation['sent'] = inv.created
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132 | 4f8e7c6d | Georgios Gousios | invitation['id'] = inv.id
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133 | 566cd8b2 | Georgios Gousios | |
134 | e6d6603a | Georgios Gousios | invitations.append(invitation) |
135 | 566cd8b2 | Georgios Gousios | |
136 | e6d6603a | Georgios Gousios | return invitations
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137 | 03e70572 | Georgios Gousios | |
138 | f1bb3880 | Georgios Gousios | |
139 | a640b50d | Georgios Gousios | @csrf_protect
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140 | 03e70572 | Georgios Gousios | def inv_demux(request): |
141 | 3b09ff22 | Georgios Gousios | |
142 | 03e70572 | Georgios Gousios | if request.method == 'GET': |
143 | 566cd8b2 | Georgios Gousios | data = render_to_string('invitations.html',
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144 | 8f50f91c | Kostas Papadimitriou | {'invitations': invitations_for_user(request),
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145 | 8f50f91c | Kostas Papadimitriou | 'invitations_left': get_invitations_left(request.user)
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146 | 8f50f91c | Kostas Papadimitriou | }, |
147 | a640b50d | Georgios Gousios | context_instance=RequestContext(request)) |
148 | 03e70572 | Georgios Gousios | return HttpResponse(data)
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149 | 03e70572 | Georgios Gousios | elif request.method == 'POST': |
150 | e6d6603a | Georgios Gousios | return process_form(request)
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151 | 03e70572 | Georgios Gousios | else:
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152 | 03e70572 | Georgios Gousios | method_not_allowed(request) |
153 | 03e70572 | Georgios Gousios | |
154 | 33e00f02 | Georgios Gousios | |
155 | 3b09ff22 | Georgios Gousios | def login(request): |
156 | 3b09ff22 | Georgios Gousios | |
157 | 3b09ff22 | Georgios Gousios | if not request.method == 'GET': |
158 | 3b09ff22 | Georgios Gousios | method_not_allowed(request) |
159 | 3b09ff22 | Georgios Gousios | |
160 | 3b09ff22 | Georgios Gousios | key = request.GET['key']
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161 | 3b09ff22 | Georgios Gousios | |
162 | 3b09ff22 | Georgios Gousios | if key is None: |
163 | 914502af | Georgios Gousios | return render_login_error("10", "Required key is missing") |
164 | 3b09ff22 | Georgios Gousios | |
165 | 3b09ff22 | Georgios Gousios | PADDING = '{'
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166 | 3b09ff22 | Georgios Gousios | |
167 | 68a77896 | Georgios Gousios | try:
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168 | 914502af | Georgios Gousios | DecodeAES = lambda c, e: c.decrypt(base64.b64decode(e)).rstrip(PADDING)
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169 | 914502af | Georgios Gousios | cipher = AES.new(settings.INVITATION_ENCR_KEY) |
170 | 914502af | Georgios Gousios | decoded = DecodeAES(cipher, key) |
171 | 914502af | Georgios Gousios | except Exception: |
172 | 914502af | Georgios Gousios | return render_login_error("20", "Required key is invalid") |
173 | 3b09ff22 | Georgios Gousios | |
174 | 3b09ff22 | Georgios Gousios | users = SynnefoUser.objects.filter(auth_token = decoded) |
175 | 3b09ff22 | Georgios Gousios | |
176 | 3b09ff22 | Georgios Gousios | if users.count() is 0: |
177 | 914502af | Georgios Gousios | return render_login_error("20", "Required key is invalid") |
178 | 3b09ff22 | Georgios Gousios | |
179 | 3b09ff22 | Georgios Gousios | user = users[0]
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180 | 3b09ff22 | Georgios Gousios | invitations = Invitations.objects.filter(target = user) |
181 | 3b09ff22 | Georgios Gousios | |
182 | 3b09ff22 | Georgios Gousios | if invitations.count() is 0: |
183 | 914502af | Georgios Gousios | return render_login_error("30", "Non-existent invitation") |
184 | f1bb3880 | Georgios Gousios | |
185 | 3b09ff22 | Georgios Gousios | inv = invitations[0]
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186 | 3b09ff22 | Georgios Gousios | |
187 | 0fbab7db | Vangelis Koukis | valid = timedelta(days=settings.INVITATION_VALID_DAYS) |
188 | 3b09ff22 | Georgios Gousios | valid_until = inv.created + valid |
189 | 0fbab7db | Vangelis Koukis | now = datetime.datetime.now() |
190 | 3b09ff22 | Georgios Gousios | |
191 | 0fbab7db | Vangelis Koukis | if now > valid_until:
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192 | 914502af | Georgios Gousios | return render_login_error("40", |
193 | 0fbab7db | Vangelis Koukis | "Invitation has expired (was valid until " \
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194 | 0fbab7db | Vangelis Koukis | "%s, now is %s" %
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195 | 0fbab7db | Vangelis Koukis | (valid_until.strftime('%A, %d %B %Y'),
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196 | 0fbab7db | Vangelis Koukis | now.strftime('%A, %d %B %Y')))
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197 | 0fbab7db | Vangelis Koukis | |
198 | 73d6073f | Georgios Gousios | # Since the invitation is valid, renew the user's auth token. This also
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199 | 73d6073f | Georgios Gousios | # takes care of cases where the user re-uses the invitation to
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200 | 73d6073f | Georgios Gousios | # login when the original token has expired
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201 | 73d6073f | Georgios Gousios | from synnefo.logic import users # redefine 'users' |
202 | 73d6073f | Georgios Gousios | users.set_auth_token_expires(user, valid_until) |
203 | 73d6073f | Georgios Gousios | |
204 | 914502af | Georgios Gousios | #if inv.accepted == False:
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205 | 914502af | Georgios Gousios | # return render_login_error("60", "Invitation already accepted")
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206 | 3b09ff22 | Georgios Gousios | |
207 | 3b09ff22 | Georgios Gousios | inv.accepted = True
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208 | 3b09ff22 | Georgios Gousios | inv.save() |
209 | 3b09ff22 | Georgios Gousios | |
210 | 25c36228 | Georgios Gousios | _logger.info("Invited user %s logged in"%(inv.target.uniq))
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211 | 25c36228 | Georgios Gousios | |
212 | 914502af | Georgios Gousios | data = dict()
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213 | 914502af | Georgios Gousios | data['user'] = user.realname
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214 | 914502af | Georgios Gousios | data['url'] = settings.APP_INSTALL_URL
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215 | 914502af | Georgios Gousios | |
216 | 914502af | Georgios Gousios | welcome = render_to_string('welcome.html', {'data': data}) |
217 | 914502af | Georgios Gousios | |
218 | 914502af | Georgios Gousios | response = HttpResponse(welcome) |
219 | 3b09ff22 | Georgios Gousios | |
220 | 3b09ff22 | Georgios Gousios | response.set_cookie('X-Auth-Token', value=user.auth_token,
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221 | 3b09ff22 | Georgios Gousios | expires = valid_until.strftime('%a, %d-%b-%Y %H:%M:%S %Z'),
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222 | 3b09ff22 | Georgios Gousios | path='/')
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223 | 3b09ff22 | Georgios Gousios | response['X-Auth-Token'] = user.auth_token
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224 | 914502af | Georgios Gousios | return response
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225 | 914502af | Georgios Gousios | |
226 | 914502af | Georgios Gousios | |
227 | 914502af | Georgios Gousios | def render_login_error(code, text): |
228 | 914502af | Georgios Gousios | error = dict()
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229 | 914502af | Georgios Gousios | error['id'] = code
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230 | 914502af | Georgios Gousios | error['text'] = text
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231 | 914502af | Georgios Gousios | |
232 | 914502af | Georgios Gousios | data = render_to_string('error.html', {'error': error}) |
233 | 914502af | Georgios Gousios | |
234 | 914502af | Georgios Gousios | response = HttpResponse(data) |
235 | 3b09ff22 | Georgios Gousios | return response
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236 | 3b09ff22 | Georgios Gousios | |
237 | 3b09ff22 | Georgios Gousios | |
238 | 3b09ff22 | Georgios Gousios | def send_invitation(invitation): |
239 | e6d6603a | Georgios Gousios | email = {} |
240 | e6d6603a | Georgios Gousios | email['invitee'] = invitation.target.realname
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241 | e6d6603a | Georgios Gousios | email['inviter'] = invitation.source.realname
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242 | e6d6603a | Georgios Gousios | |
243 | e6d6603a | Georgios Gousios | valid = timedelta(days = settings.INVITATION_VALID_DAYS) |
244 | e6d6603a | Georgios Gousios | valid_until = invitation.created + valid |
245 | e6d6603a | Georgios Gousios | email['valid_until'] = valid_until.strftime('%A, %d %B %Y') |
246 | e8fe75a8 | Georgios Gousios | email['url'] = enconde_inv_url(invitation)
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247 | e6d6603a | Georgios Gousios | |
248 | e6d6603a | Georgios Gousios | data = render_to_string('invitation.txt', {'email': email}) |
249 | 3b09ff22 | Georgios Gousios | |
250 | 844ff4db | Georgios Gousios | _logger.debug("Invitation URL: %s" % email['url']) |
251 | 844ff4db | Georgios Gousios | |
252 | f1bb3880 | Georgios Gousios | send_async( |
253 | 3d3c58d7 | Georgios Gousios | frm = "%s"%(settings.DEFAULT_FROM_EMAIL),
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254 | f1bb3880 | Georgios Gousios | to = "%s <%s>"%(invitation.target.realname,invitation.target.uniq),
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255 | 5aa0805d | Vangelis Koukis | subject = _('Invitation to ~okeanos IaaS service'),
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256 | f1bb3880 | Georgios Gousios | body = data |
257 | f1bb3880 | Georgios Gousios | ) |
258 | f1bb3880 | Georgios Gousios | |
259 | e8fe75a8 | Georgios Gousios | def enconde_inv_url(invitation): |
260 | e8fe75a8 | Georgios Gousios | PADDING = '{'
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261 | e8fe75a8 | Georgios Gousios | pad = lambda s: s + (32 - len(s) % 32) * PADDING |
262 | e8fe75a8 | Georgios Gousios | EncodeAES = lambda c, s: base64.b64encode(c.encrypt(pad(s)))
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263 | e8fe75a8 | Georgios Gousios | |
264 | e8fe75a8 | Georgios Gousios | cipher = AES.new(settings.INVITATION_ENCR_KEY) |
265 | e8fe75a8 | Georgios Gousios | encoded = EncodeAES(cipher, invitation.target.auth_token) |
266 | e8fe75a8 | Georgios Gousios | |
267 | e8fe75a8 | Georgios Gousios | url_safe = urllib.urlencode({'key': encoded})
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268 | e8fe75a8 | Georgios Gousios | url = settings.APP_INSTALL_URL + "/invitations/login?" + url_safe
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269 | e8fe75a8 | Georgios Gousios | |
270 | e8fe75a8 | Georgios Gousios | return url
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271 | 4f8e7c6d | Georgios Gousios | |
272 | 4f8e7c6d | Georgios Gousios | |
273 | 4f8e7c6d | Georgios Gousios | def resend(request): |
274 | 4f8e7c6d | Georgios Gousios | """
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275 | 4f8e7c6d | Georgios Gousios | Resend an invitation that has been already sent
|
276 | 4f8e7c6d | Georgios Gousios | """
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277 | 4f8e7c6d | Georgios Gousios | |
278 | 4f8e7c6d | Georgios Gousios | if not request.method == 'POST': |
279 | 4f8e7c6d | Georgios Gousios | return method_not_allowed(request)
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280 | 4f8e7c6d | Georgios Gousios | |
281 | 4f8e7c6d | Georgios Gousios | invid = request.POST["invid"]
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282 | 4f8e7c6d | Georgios Gousios | |
283 | 4f8e7c6d | Georgios Gousios | matcher = re.compile('^[0-9]+$')
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284 | 4f8e7c6d | Georgios Gousios | |
285 | 4f8e7c6d | Georgios Gousios | # XXX: Assumes numeric DB keys
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286 | 4f8e7c6d | Georgios Gousios | if not matcher.match(invid): |
287 | 4f8e7c6d | Georgios Gousios | return HttpResponseBadRequest("Invalid content for parameter [invid]") |
288 | 4f8e7c6d | Georgios Gousios | |
289 | 4f8e7c6d | Georgios Gousios | try:
|
290 | 4f8e7c6d | Georgios Gousios | inv = Invitations.objects.get(id = invid) |
291 | 4f8e7c6d | Georgios Gousios | except Exception: |
292 | 4f8e7c6d | Georgios Gousios | return HttpResponseBadRequest("Invitation to resend does not exist") |
293 | 4f8e7c6d | Georgios Gousios | |
294 | 4f8e7c6d | Georgios Gousios | if not request.user == inv.source: |
295 | 4f8e7c6d | Georgios Gousios | return HttpResponseBadRequest("Invitation does not belong to user") |
296 | 4f8e7c6d | Georgios Gousios | |
297 | 4f8e7c6d | Georgios Gousios | try:
|
298 | 4f8e7c6d | Georgios Gousios | send_invitation(inv) |
299 | 4f8e7c6d | Georgios Gousios | except Exception: |
300 | 4f8e7c6d | Georgios Gousios | return HttpResponseServerError("Error sending invitation email") |
301 | 4f8e7c6d | Georgios Gousios | |
302 | 4f8e7c6d | Georgios Gousios | return HttpResponse("Invitation has been resent") |
303 | e8fe75a8 | Georgios Gousios | |
304 | 9f8ad4c5 | Georgios Gousios | def get_invitee_level(source): |
305 | 9f8ad4c5 | Georgios Gousios | return get_user_inv_level(source) + 1 |
306 | 9f8ad4c5 | Georgios Gousios | |
307 | 9f8ad4c5 | Georgios Gousios | |
308 | 9f8ad4c5 | Georgios Gousios | def get_user_inv_level(u): |
309 | 9f8ad4c5 | Georgios Gousios | inv = Invitations.objects.filter(target = u) |
310 | 9f8ad4c5 | Georgios Gousios | |
311 | cf8482f2 | Giorgos Verigakis | if not inv: |
312 | 9f8ad4c5 | Georgios Gousios | raise Exception("User without invitation", u) |
313 | 9f8ad4c5 | Georgios Gousios | |
314 | 9f8ad4c5 | Georgios Gousios | return inv[0].level |
315 | 9f8ad4c5 | Georgios Gousios | |
316 | 9f8ad4c5 | Georgios Gousios | |
317 | 03e70572 | Georgios Gousios | @transaction.commit_on_success
|
318 | 03e70572 | Georgios Gousios | def add_invitation(source, name, email): |
319 | 03e70572 | Georgios Gousios | """
|
320 | 03e70572 | Georgios Gousios | Adds an invitation, if the source user has not gone over his/her
|
321 | 33e00f02 | Georgios Gousios | invitation limit or the target user has not been invited already
|
322 | 03e70572 | Georgios Gousios | """
|
323 | 03e70572 | Georgios Gousios | num_inv = Invitations.objects.filter(source = source).count() |
324 | 03e70572 | Georgios Gousios | |
325 | 33e00f02 | Georgios Gousios | if num_inv >= source.max_invitations:
|
326 | d652580d | Georgios Gousios | raise TooManyInvitations("User invitation limit (%d) exhausted" % |
327 | 33e00f02 | Georgios Gousios | source.max_invitations) |
328 | 03e70572 | Georgios Gousios | |
329 | f1bb3880 | Georgios Gousios | target = SynnefoUser.objects.filter(uniq = email) |
330 | 03e70572 | Georgios Gousios | |
331 | 03e70572 | Georgios Gousios | if target.count() is not 0: |
332 | f1bb3880 | Georgios Gousios | raise AlreadyInvited("User with email %s already invited" % (email)) |
333 | 03e70572 | Georgios Gousios | |
334 | 53e6717b | Georgios Gousios | users.register_user(name, email) |
335 | 53e6717b | Georgios Gousios | |
336 | 53e6717b | Georgios Gousios | target = SynnefoUser.objects.filter(uniq = email) |
337 | 53e6717b | Georgios Gousios | |
338 | 53e6717b | Georgios Gousios | r = list(target[:1]) |
339 | 53e6717b | Georgios Gousios | if not r: |
340 | bd1548a7 | Georgios Gousios | raise Exception("Invited user cannot be added") |
341 | 03e70572 | Georgios Gousios | |
342 | 9f8ad4c5 | Georgios Gousios | u = target[0]
|
343 | 9f8ad4c5 | Georgios Gousios | invitee_level = get_invitee_level(source) |
344 | 9f8ad4c5 | Georgios Gousios | |
345 | 9f8ad4c5 | Georgios Gousios | u.max_invitations = settings.INVITATIONS_PER_LEVEL[invitee_level] |
346 | 9f8ad4c5 | Georgios Gousios | u.save() |
347 | 9f8ad4c5 | Georgios Gousios | |
348 | 03e70572 | Georgios Gousios | inv = Invitations() |
349 | 03e70572 | Georgios Gousios | inv.source = source |
350 | 9f8ad4c5 | Georgios Gousios | inv.target = u |
351 | 9f8ad4c5 | Georgios Gousios | inv.level = invitee_level |
352 | 03e70572 | Georgios Gousios | inv.save() |
353 | e6d6603a | Georgios Gousios | return inv
|
354 | 03e70572 | Georgios Gousios | |
355 | 8f50f91c | Kostas Papadimitriou | def get_invitations_left(user): |
356 | 8f50f91c | Kostas Papadimitriou | """
|
357 | 8f50f91c | Kostas Papadimitriou | Get user invitations left
|
358 | 8f50f91c | Kostas Papadimitriou | """
|
359 | 8f50f91c | Kostas Papadimitriou | num_inv = Invitations.objects.filter(source = user).count() |
360 | 8f50f91c | Kostas Papadimitriou | return user.max_invitations - num_inv
|
361 | 8f50f91c | Kostas Papadimitriou | |
362 | 847a3ecf | Georgios Gousios | def remove_invitation(invitation): |
363 | 847a3ecf | Georgios Gousios | """
|
364 | 847a3ecf | Georgios Gousios | Removes an invitation and the invited user
|
365 | 847a3ecf | Georgios Gousios | """
|
366 | 847a3ecf | Georgios Gousios | if invitation is not None: |
367 | ee60bb36 | Georgios Gousios | if isinstance(invitation, Invitations): |
368 | ee60bb36 | Georgios Gousios | if invitation.target is not None: |
369 | ee60bb36 | Georgios Gousios | invitation.target.delete() |
370 | ee60bb36 | Georgios Gousios | invitation.delete() |
371 | 847a3ecf | Georgios Gousios | |
372 | d028ab18 | Georgios Gousios | class InvitationException(Exception): |
373 | a640b50d | Georgios Gousios | def __init__(self, msg): |
374 | d53bbf68 | Georgios Gousios | self.messages = [msg]
|
375 | 03e70572 | Georgios Gousios | |
376 | d53bbf68 | Georgios Gousios | class TooManyInvitations(InvitationException): |
377 | d53bbf68 | Georgios Gousios | pass
|
378 | 03e70572 | Georgios Gousios | |
379 | d028ab18 | Georgios Gousios | class AlreadyInvited(InvitationException): |
380 | d53bbf68 | Georgios Gousios | pass |