root / invitations / invitations.py @ bd1548a7
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1 | f1bb3880 | Georgios Gousios | # vim: set fileencoding=utf-8 :
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2 | e6d6603a | Georgios Gousios | from datetime import timedelta |
3 | e6d6603a | Georgios Gousios | import base64 |
4 | 3b09ff22 | Georgios Gousios | import time |
5 | 3b09ff22 | Georgios Gousios | import urllib |
6 | e6d6603a | Georgios Gousios | |
7 | 03e70572 | Georgios Gousios | from django.conf import settings |
8 | 566cd8b2 | Georgios Gousios | from django.core.exceptions import ValidationError |
9 | 03e70572 | Georgios Gousios | from django.db import transaction |
10 | 03e70572 | Georgios Gousios | from django.http import HttpResponse, HttpResponseRedirect |
11 | a640b50d | Georgios Gousios | from django.template.context import RequestContext |
12 | 2a0eee64 | Georgios Gousios | from django.template.loader import render_to_string |
13 | 566cd8b2 | Georgios Gousios | from django.core.validators import validate_email |
14 | a640b50d | Georgios Gousios | from django.views.decorators.csrf import csrf_protect |
15 | f1bb3880 | Georgios Gousios | from synnefo.logic.email import send_async |
16 | 566cd8b2 | Georgios Gousios | |
17 | 03e70572 | Georgios Gousios | from synnefo.api.common import method_not_allowed |
18 | 03e70572 | Georgios Gousios | from synnefo.db.models import Invitations, SynnefoUser |
19 | 03e70572 | Georgios Gousios | from synnefo.logic import users |
20 | e6d6603a | Georgios Gousios | |
21 | e6d6603a | Georgios Gousios | from Crypto.Cipher import AES |
22 | 03e70572 | Georgios Gousios | |
23 | f1bb3880 | Georgios Gousios | |
24 | e6d6603a | Georgios Gousios | def process_form(request): |
25 | a640b50d | Georgios Gousios | errors = [] |
26 | 566cd8b2 | Georgios Gousios | valid_inv = filter(lambda x: x.startswith("name_"), request.POST.keys()) |
27 | 566cd8b2 | Georgios Gousios | |
28 | 566cd8b2 | Georgios Gousios | for inv in valid_inv: |
29 | 566cd8b2 | Georgios Gousios | (name, inv_id) = inv.split('_')
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30 | 566cd8b2 | Georgios Gousios | |
31 | 566cd8b2 | Georgios Gousios | try:
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32 | 566cd8b2 | Georgios Gousios | email = request.POST['email_' + inv_id]
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33 | 566cd8b2 | Georgios Gousios | name = request.POST[inv] |
34 | 566cd8b2 | Georgios Gousios | |
35 | 566cd8b2 | Georgios Gousios | validate_name(name) |
36 | a640b50d | Georgios Gousios | validate_email(email) |
37 | a640b50d | Georgios Gousios | |
38 | e6d6603a | Georgios Gousios | inv = add_invitation(request.user, name, email) |
39 | 3b09ff22 | Georgios Gousios | send_invitation(inv) |
40 | a640b50d | Georgios Gousios | |
41 | 566cd8b2 | Georgios Gousios | except Exception as e: |
42 | f1bb3880 | Georgios Gousios | try :
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43 | f1bb3880 | Georgios Gousios | errors += ["Invitation to %s <%s> not sent. Reason: %s"%(name, email, e.messages[0])] |
44 | f1bb3880 | Georgios Gousios | except:
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45 | f1bb3880 | Georgios Gousios | errors += ["Invitation to %s <%s> not sent. Reason: %s"%(name, email, e.message)]
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46 | a640b50d | Georgios Gousios | |
47 | a640b50d | Georgios Gousios | respose = None
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48 | a640b50d | Georgios Gousios | if errors:
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49 | a640b50d | Georgios Gousios | data = render_to_string('invitations.html',
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50 | a640b50d | Georgios Gousios | {'invitations': invitations_for_user(request),
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51 | a640b50d | Georgios Gousios | 'errors': errors},
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52 | a640b50d | Georgios Gousios | context_instance=RequestContext(request)) |
53 | a640b50d | Georgios Gousios | response = HttpResponse(data) |
54 | a640b50d | Georgios Gousios | else:
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55 | a640b50d | Georgios Gousios | response = HttpResponseRedirect("/invitations/")
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56 | 566cd8b2 | Georgios Gousios | |
57 | 566cd8b2 | Georgios Gousios | return response
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58 | 566cd8b2 | Georgios Gousios | |
59 | f1bb3880 | Georgios Gousios | |
60 | 566cd8b2 | Georgios Gousios | def validate_name(name): |
61 | 566cd8b2 | Georgios Gousios | if name is None or name.strip() == '' : |
62 | a640b50d | Georgios Gousios | raise ValidationError("Name is empty") |
63 | a640b50d | Georgios Gousios | |
64 | a640b50d | Georgios Gousios | if name.find(' ') is -1: |
65 | a640b50d | Georgios Gousios | raise ValidationError("Name must contain at least one space") |
66 | 03e70572 | Georgios Gousios | |
67 | 566cd8b2 | Georgios Gousios | return True |
68 | 566cd8b2 | Georgios Gousios | |
69 | f1bb3880 | Georgios Gousios | |
70 | 566cd8b2 | Georgios Gousios | def invitations_for_user(request): |
71 | 566cd8b2 | Georgios Gousios | invitations = [] |
72 | 566cd8b2 | Georgios Gousios | |
73 | 566cd8b2 | Georgios Gousios | for inv in Invitations.objects.filter(source = request.user): |
74 | e6d6603a | Georgios Gousios | invitation = {} |
75 | 566cd8b2 | Georgios Gousios | |
76 | e6d6603a | Georgios Gousios | invitation['sourcename'] = inv.source.realname
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77 | e6d6603a | Georgios Gousios | invitation['source'] = inv.source.uniq
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78 | e6d6603a | Georgios Gousios | invitation['targetname'] = inv.target.realname
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79 | e6d6603a | Georgios Gousios | invitation['target'] = inv.target.uniq
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80 | e6d6603a | Georgios Gousios | invitation['accepted'] = inv.accepted
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81 | e6d6603a | Georgios Gousios | invitation['sent'] = inv.created
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82 | 566cd8b2 | Georgios Gousios | |
83 | e6d6603a | Georgios Gousios | invitations.append(invitation) |
84 | 566cd8b2 | Georgios Gousios | |
85 | e6d6603a | Georgios Gousios | return invitations
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86 | 03e70572 | Georgios Gousios | |
87 | f1bb3880 | Georgios Gousios | |
88 | a640b50d | Georgios Gousios | @csrf_protect
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89 | 03e70572 | Georgios Gousios | def inv_demux(request): |
90 | 3b09ff22 | Georgios Gousios | |
91 | 03e70572 | Georgios Gousios | if request.method == 'GET': |
92 | 566cd8b2 | Georgios Gousios | data = render_to_string('invitations.html',
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93 | a640b50d | Georgios Gousios | {'invitations': invitations_for_user(request)},
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94 | a640b50d | Georgios Gousios | context_instance=RequestContext(request)) |
95 | 03e70572 | Georgios Gousios | return HttpResponse(data)
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96 | 03e70572 | Georgios Gousios | elif request.method == 'POST': |
97 | e6d6603a | Georgios Gousios | return process_form(request)
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98 | 03e70572 | Georgios Gousios | else:
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99 | 03e70572 | Georgios Gousios | method_not_allowed(request) |
100 | 03e70572 | Georgios Gousios | |
101 | 3b09ff22 | Georgios Gousios | def login(request): |
102 | 3b09ff22 | Georgios Gousios | |
103 | 3b09ff22 | Georgios Gousios | if not request.method == 'GET': |
104 | 3b09ff22 | Georgios Gousios | method_not_allowed(request) |
105 | 3b09ff22 | Georgios Gousios | |
106 | 3b09ff22 | Georgios Gousios | key = request.GET['key']
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107 | 3b09ff22 | Georgios Gousios | |
108 | 3b09ff22 | Georgios Gousios | if key is None: |
109 | 914502af | Georgios Gousios | return render_login_error("10", "Required key is missing") |
110 | 3b09ff22 | Georgios Gousios | |
111 | 3b09ff22 | Georgios Gousios | PADDING = '{'
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112 | 3b09ff22 | Georgios Gousios | |
113 | 914502af | Georgios Gousios | try :
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114 | 914502af | Georgios Gousios | DecodeAES = lambda c, e: c.decrypt(base64.b64decode(e)).rstrip(PADDING)
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115 | 914502af | Georgios Gousios | cipher = AES.new(settings.INVITATION_ENCR_KEY) |
116 | 914502af | Georgios Gousios | decoded = DecodeAES(cipher, key) |
117 | 914502af | Georgios Gousios | except Exception: |
118 | 914502af | Georgios Gousios | return render_login_error("20", "Required key is invalid") |
119 | 3b09ff22 | Georgios Gousios | |
120 | 3b09ff22 | Georgios Gousios | users = SynnefoUser.objects.filter(auth_token = decoded) |
121 | 3b09ff22 | Georgios Gousios | |
122 | 3b09ff22 | Georgios Gousios | if users.count() is 0: |
123 | 914502af | Georgios Gousios | return render_login_error("20", "Required key is invalid") |
124 | 3b09ff22 | Georgios Gousios | |
125 | 3b09ff22 | Georgios Gousios | user = users[0]
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126 | 3b09ff22 | Georgios Gousios | invitations = Invitations.objects.filter(target = user) |
127 | 3b09ff22 | Georgios Gousios | |
128 | 3b09ff22 | Georgios Gousios | if invitations.count() is 0: |
129 | 914502af | Georgios Gousios | return render_login_error("30", "Non-existent invitation") |
130 | f1bb3880 | Georgios Gousios | |
131 | 3b09ff22 | Georgios Gousios | inv = invitations[0]
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132 | 3b09ff22 | Georgios Gousios | |
133 | 3b09ff22 | Georgios Gousios | valid = timedelta(days = settings.INVITATION_VALID_DAYS) |
134 | 3b09ff22 | Georgios Gousios | valid_until = inv.created + valid |
135 | 3b09ff22 | Georgios Gousios | |
136 | 3b09ff22 | Georgios Gousios | if (time.time() -
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137 | 3b09ff22 | Georgios Gousios | time.mktime(inv.created.timetuple()) - |
138 | 3b09ff22 | Georgios Gousios | settings.INVITATION_VALID_DAYS * 3600) > 0: |
139 | 914502af | Georgios Gousios | return render_login_error("40", |
140 | 914502af | Georgios Gousios | "Invitation expired (was valid until %s)"%
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141 | 914502af | Georgios Gousios | valid_until.strftime('%A, %d %B %Y'))
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142 | 914502af | Georgios Gousios | #if inv.accepted == False:
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143 | 914502af | Georgios Gousios | # return render_login_error("60", "Invitation already accepted")
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144 | 3b09ff22 | Georgios Gousios | |
145 | 3b09ff22 | Georgios Gousios | inv.accepted = True
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146 | 3b09ff22 | Georgios Gousios | inv.save() |
147 | 3b09ff22 | Georgios Gousios | |
148 | 914502af | Georgios Gousios | data = dict()
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149 | 914502af | Georgios Gousios | data['user'] = user.realname
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150 | 914502af | Georgios Gousios | data['url'] = settings.APP_INSTALL_URL
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151 | 914502af | Georgios Gousios | |
152 | 914502af | Georgios Gousios | welcome = render_to_string('welcome.html', {'data': data}) |
153 | 914502af | Georgios Gousios | |
154 | 914502af | Georgios Gousios | response = HttpResponse(welcome) |
155 | 3b09ff22 | Georgios Gousios | |
156 | 3b09ff22 | Georgios Gousios | response.set_cookie('X-Auth-Token', value=user.auth_token,
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157 | 3b09ff22 | Georgios Gousios | expires = valid_until.strftime('%a, %d-%b-%Y %H:%M:%S %Z'),
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158 | 3b09ff22 | Georgios Gousios | path='/')
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159 | 3b09ff22 | Georgios Gousios | response['X-Auth-Token'] = user.auth_token
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160 | 914502af | Georgios Gousios | return response
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161 | 914502af | Georgios Gousios | |
162 | 914502af | Georgios Gousios | |
163 | 914502af | Georgios Gousios | def render_login_error(code, text): |
164 | 914502af | Georgios Gousios | error = dict()
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165 | 914502af | Georgios Gousios | error['id'] = code
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166 | 914502af | Georgios Gousios | error['text'] = text
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167 | 914502af | Georgios Gousios | |
168 | 914502af | Georgios Gousios | data = render_to_string('error.html', {'error': error}) |
169 | 914502af | Georgios Gousios | |
170 | 914502af | Georgios Gousios | response = HttpResponse(data) |
171 | 3b09ff22 | Georgios Gousios | return response
|
172 | 3b09ff22 | Georgios Gousios | |
173 | 3b09ff22 | Georgios Gousios | |
174 | 3b09ff22 | Georgios Gousios | def send_invitation(invitation): |
175 | e6d6603a | Georgios Gousios | email = {} |
176 | e6d6603a | Georgios Gousios | email['invitee'] = invitation.target.realname
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177 | e6d6603a | Georgios Gousios | email['inviter'] = invitation.source.realname
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178 | e6d6603a | Georgios Gousios | |
179 | e6d6603a | Georgios Gousios | valid = timedelta(days = settings.INVITATION_VALID_DAYS) |
180 | e6d6603a | Georgios Gousios | valid_until = invitation.created + valid |
181 | e6d6603a | Georgios Gousios | email['valid_until'] = valid_until.strftime('%A, %d %B %Y') |
182 | e6d6603a | Georgios Gousios | |
183 | e6d6603a | Georgios Gousios | PADDING = '{'
|
184 | e6d6603a | Georgios Gousios | pad = lambda s: s + (32 - len(s) % 32) * PADDING |
185 | e6d6603a | Georgios Gousios | EncodeAES = lambda c, s: base64.b64encode(c.encrypt(pad(s)))
|
186 | e6d6603a | Georgios Gousios | |
187 | e6d6603a | Georgios Gousios | cipher = AES.new(settings.INVITATION_ENCR_KEY) |
188 | e6d6603a | Georgios Gousios | encoded = EncodeAES(cipher, invitation.target.auth_token) |
189 | e6d6603a | Georgios Gousios | |
190 | 3b09ff22 | Georgios Gousios | url_safe = urllib.urlencode({'key': encoded})
|
191 | 3b09ff22 | Georgios Gousios | |
192 | 3b09ff22 | Georgios Gousios | email['url'] = settings.APP_INSTALL_URL + "/invitations/login?" + url_safe |
193 | e6d6603a | Georgios Gousios | |
194 | e6d6603a | Georgios Gousios | data = render_to_string('invitation.txt', {'email': email}) |
195 | 3b09ff22 | Georgios Gousios | |
196 | 3b09ff22 | Georgios Gousios | print data
|
197 | 3b09ff22 | Georgios Gousios | |
198 | f1bb3880 | Georgios Gousios | send_async( |
199 | f1bb3880 | Georgios Gousios | frm = "%s <%s>"%(invitation.source.realname,invitation.source.uniq),
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200 | f1bb3880 | Georgios Gousios | to = "%s <%s>"%(invitation.target.realname,invitation.target.uniq),
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201 | f1bb3880 | Georgios Gousios | subject = u'Πρόσκληση για την υπηρεσία Ωκεανός',
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202 | f1bb3880 | Georgios Gousios | body = data |
203 | f1bb3880 | Georgios Gousios | ) |
204 | f1bb3880 | Georgios Gousios | |
205 | e6d6603a | Georgios Gousios | |
206 | 03e70572 | Georgios Gousios | @transaction.commit_on_success
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207 | 03e70572 | Georgios Gousios | def add_invitation(source, name, email): |
208 | 03e70572 | Georgios Gousios | """
|
209 | 03e70572 | Georgios Gousios | Adds an invitation, if the source user has not gone over his/her
|
210 | 03e70572 | Georgios Gousios | invitation count or the target user has not been invited already
|
211 | 03e70572 | Georgios Gousios | """
|
212 | 03e70572 | Georgios Gousios | num_inv = Invitations.objects.filter(source = source).count() |
213 | 03e70572 | Georgios Gousios | |
214 | 03e70572 | Georgios Gousios | if num_inv >= settings.MAX_INVITATIONS:
|
215 | a640b50d | Georgios Gousios | raise TooManyInvitations("User invitation limit (%d) exhausted" % settings.MAX_INVITATIONS) |
216 | 03e70572 | Georgios Gousios | |
217 | f1bb3880 | Georgios Gousios | target = SynnefoUser.objects.filter(uniq = email) |
218 | 03e70572 | Georgios Gousios | |
219 | 03e70572 | Georgios Gousios | if target.count() is not 0: |
220 | f1bb3880 | Georgios Gousios | raise AlreadyInvited("User with email %s already invited" % (email)) |
221 | 03e70572 | Georgios Gousios | |
222 | 53e6717b | Georgios Gousios | users.register_user(name, email) |
223 | 53e6717b | Georgios Gousios | |
224 | 53e6717b | Georgios Gousios | target = SynnefoUser.objects.filter(uniq = email) |
225 | 53e6717b | Georgios Gousios | |
226 | 53e6717b | Georgios Gousios | r = list(target[:1]) |
227 | 53e6717b | Georgios Gousios | if not r: |
228 | bd1548a7 | Georgios Gousios | raise Exception("Invited user cannot be added") |
229 | 03e70572 | Georgios Gousios | |
230 | 03e70572 | Georgios Gousios | inv = Invitations() |
231 | 03e70572 | Georgios Gousios | inv.source = source |
232 | 53e6717b | Georgios Gousios | inv.target = target[0]
|
233 | 03e70572 | Georgios Gousios | inv.save() |
234 | e6d6603a | Georgios Gousios | return inv
|
235 | 03e70572 | Georgios Gousios | |
236 | f1bb3880 | Georgios Gousios | |
237 | 03e70572 | Georgios Gousios | @transaction.commit_on_success
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238 | 03e70572 | Georgios Gousios | def invitation_accepted(invitation): |
239 | 03e70572 | Georgios Gousios | """
|
240 | 03e70572 | Georgios Gousios | Mark an invitation as accepted
|
241 | 03e70572 | Georgios Gousios | """
|
242 | 03e70572 | Georgios Gousios | invitation.accepted = True
|
243 | 03e70572 | Georgios Gousios | invitation.save() |
244 | 03e70572 | Georgios Gousios | |
245 | 03e70572 | Georgios Gousios | |
246 | a640b50d | Georgios Gousios | class TooManyInvitations(Exception): |
247 | f1bb3880 | Georgios Gousios | messages = [] |
248 | a640b50d | Georgios Gousios | |
249 | a640b50d | Georgios Gousios | def __init__(self, msg): |
250 | a640b50d | Georgios Gousios | self.messages.append(msg)
|
251 | 03e70572 | Georgios Gousios | |
252 | 03e70572 | Georgios Gousios | |
253 | a640b50d | Georgios Gousios | class AlreadyInvited(Exception): |
254 | a640b50d | Georgios Gousios | messages = [] |
255 | 03e70572 | Georgios Gousios | |
256 | 03e70572 | Georgios Gousios | def __init__(self, msg): |
257 | a640b50d | Georgios Gousios | self.messages.append(msg) |