source: main/waeup.custom/trunk/src/waeup/custom/students/interswitch.py @ 7895

Last change on this file since 7895 was 7894, checked in by Henrik Bettermann, 13 years ago

Finalize separation of Interswitch components.
  • Property svn:keywords set to Id
File size: 8.2 KB
Line 
1## $Id: interswitch.py 7894 2012-03-16 07:24:24Z henrik $
2##
3## Copyright (C) 2012 Uli Fouquet & Henrik Bettermann
4## This program is free software; you can redistribute it and/or modify
5## it under the terms of the GNU General Public License as published by
6## the Free Software Foundation; either version 2 of the License, or
7## (at your option) any later version.
8##
9## This program is distributed in the hope that it will be useful,
10## but WITHOUT ANY WARRANTY; without even the implied warranty of
11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12## GNU General Public License for more details.
13##
14## You should have received a copy of the GNU General Public License
15## along with this program; if not, write to the Free Software
16## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17##
18from datetime import datetime
19from urllib import urlencode
20import grok
21from waeup.kofa.browser.layout import KofaPage, UtilityView
22from waeup.kofa.accesscodes import create_accesscode
23from waeup.kofa.students.interfaces import IStudentOnlinePayment
24from waeup.kofa.students.browser import write_log_message
25from waeup.kofa.students.viewlets import RequestCallbackActionButton
26from waeup.custom.interfaces import MessageFactory as _
27
28PRODUCT_ID = '57'
29SITE_NAME = 'xyz.waeup.org'
30PROVIDER_ACCT = '2345'
31PROVIDER_BANK_ID = '8'
32PROVIDER_ITEM_NAME = 'Kofa Provider Fee'
33INSTITUTION_ACCT = '1234'
34INSTITUTION_BANK_ID = '9'
35INSTITUTION_NAME = 'Sample University'
36CURRENCY = '566'
37PAY_ITEM_ID = '5700'
38QUERY_URL =   'https://testwebpay.interswitchng.com/test_paydirect/services/TransactionQueryURL.aspx'
39POST_ACTION = 'https://testwebpay.interswitchng.com/test_paydirect/webpay/pay.aspx'
40
41class InterswitchActionButton(RequestCallbackActionButton):
42    grok.order(2)
43    icon = 'actionicon_pay.png'
44    text = _('CollegePAY')
45    target = 'goto_interswitch'
46
47    @property
48    def target_url(self):
49        if self.context.p_state != 'unpaid':
50            return ''
51        return self.view.url(self.view.context, self.target)
52
53class InterswitchRequestCallbackActionButton(RequestCallbackActionButton):
54    grok.order(3)
55    icon = 'actionicon_call.png'
56    text = _('Request CollegePAY callback')
57
58    def target_url(self):
59        if self.context.p_state == 'paid':
60            return ''
61        site_redirect_url = self.view.url(self.view.context, 'callback')
62        args = {
63            'transRef':self.context.p_id,
64            'prodID':PRODUCT_ID,
65            'redirectURL':site_redirect_url}
66        return QUERY_URL + '?%s' % urlencode(args)
67
68class InterswitchPage(KofaPage):
69    """ View which sends a POST request to the Interswitch
70    CollegePAY payment gateway.
71    """
72    grok.context(IStudentOnlinePayment)
73    grok.name('goto_interswitch')
74    grok.template('goto_interswitch')
75    grok.require('waeup.payStudent')
76    label = _('Submit data to CollegePAY (Interswitch Payment Gateway)')
77    submit_button = _('Submit')
78    action = POST_ACTION
79    site_name = SITE_NAME
80    currency = CURRENCY
81    pay_item_id = PAY_ITEM_ID
82    product_id = PRODUCT_ID
83
84    def update(self):
85        if self.context.p_state != 'unpaid':
86            self.flash(_("Payment ticket can't be re-send to CollegePAY."))
87            self.redirect(self.url(self.context, '@@index'))
88            return
89        self.student = self.context.getStudent()
90        self.amount = (self.context.amount_auth + self.context.surcharge_1 +
91            self.context.surcharge_2 + self.context.surcharge_3)
92        self.amount_100 = 100 * self.amount
93        self.local_date_time = str(self.context.creation_date)
94        self.site_redirect_url = self.url(self.context, 'callback')
95        certificate = getattr(self.student['studycourse'],'certificate',None)
96        xmldict = {}
97        if certificate is not None:
98            xmldict['department'] = certificate.__parent__.__parent__.code
99            xmldict['faculty'] = certificate.__parent__.__parent__.__parent__.code
100        else:
101            xmldict['department'] = None
102            xmldict['faculty'] = None
103        xmldict['detail_ref'] = self.context.p_id
104        xmldict['provider_amt'] = 100 * self.context.surcharge_1
105        xmldict['provider_acct'] = PROVIDER_ACCT
106        xmldict['provider_bank_id'] = PROVIDER_BANK_ID
107        xmldict['provider_item_name'] = PROVIDER_ITEM_NAME
108        xmldict['institution_amt'] = 100 * self.context.amount_auth
109        xmldict['institution_acct'] = INSTITUTION_ACCT
110        xmldict['institution_bank_id'] = INSTITUTION_BANK_ID
111        xmldict['institution_item_name'] = self.context.p_category
112        xmldict['institution_name'] = INSTITUTION_NAME
113        # Interswitch amount is not part of the xml data
114        xmltext = """<payment_item_detail>
115<item_details detail_ref="%(detail_ref)s" college="%(institution_name)s" department="%(department)s" faculty="%(faculty)s">
116<item_detail item_id="1" item_name="%(institution_item_name)s" item_amt="%(institution_amt)d" bank_id="%(institution_bank_id)s" acct_num="%(institution_acct)s" />
117<item_detail item_id="2" item_name="%(provider_item_name)s" item_amt="%(provider_amt)d" bank_id="%(provider_bank_id)s" acct_num="%(provider_acct)s" />
118</item_details>
119</payment_item_detail>""" % xmldict
120        self.xml_data = """<input type="hidden" name="xml_data" value='%s'  />""" % xmltext
121        return
122
123class OnlinePaymentCallbackPage(UtilityView, grok.View):
124    """ Callback view for the CollegePAY gateway
125    """
126    grok.context(IStudentOnlinePayment)
127    grok.name('callback')
128    grok.require('waeup.payStudent')
129
130    # This view is not yet working for offline querying transactions
131    # since the query string differs from the query string sent after
132    # posting transactions. This Interswitch bug must be removed first.
133    # Alternatively, we could use the webservice only and replace
134    # the RequestCallbackActionButton by a RequestWebserviceActionButton
135
136    def update(self):
137        if self.context.p_state == 'paid':
138            self.flash(_('This ticket has already been paid.'))
139            return
140        student = self.context.getStudent()
141        query = self.request.form
142        # Should be logged instead of printed
143        print query
144        if query.get('resp', None) != '00':
145            self.flash(_('Unsuccessful callback: ${a}',
146                mapping = {'a': query.get('desc', _('Incomplete query string.'))}))
147            write_log_message(self,'invalid callback: %s' % self.context.p_id)
148            self.context.r_card_num = query.get('cardNum', None)
149            self.context.r_code = query.get('resp', None)
150            self.context.p_state = 'failed'
151            return
152
153        # Add amount checking
154
155
156        # Add webservice validation
157
158
159        write_log_message(self,'valid callback: %s' % self.context.p_id)
160        self.context.r_amount_approved = self.context.amount_auth
161        self.context.r_card_num = query.get('cardNum', None)
162        self.context.r_code = query.get('resp', None)
163        self.context.r_desc = query.get('desc', None)
164        self.context.r_pay_reference  = query.get('payRef', None)
165        self.context.p_state = 'paid'
166        self.context.payment_date = datetime.now()
167
168        if self.context.p_category == 'clearance':
169            # Create CLR access code
170            pin, error = create_accesscode('CLR',0,student.student_id)
171            if error:
172                self.flash(_('Valid callback received. ${a}',
173                    mapping = {'a':error}))
174                return
175            self.context.ac = pin
176        elif self.context.p_category == 'schoolfee':
177            # Create SFE access code
178            pin, error = create_accesscode('SFE',0,student.student_id)
179            if error:
180                self.flash(_('Valid callback received. ${a}',
181                    mapping = {'a':error}))
182                return
183            self.context.ac = pin
184        elif self.context.p_category == 'bed_allocation':
185            # Create HOS access code
186            pin, error = create_accesscode('HOS',0,student.student_id)
187            if error:
188                self.flash(_('Valid callback received. ${a}',
189                    mapping = {'a':error}))
190                return
191            self.context.ac = pin
192        self.flash(_('Valid callback received.'))
193        return
194
195    def render(self):
196        self.redirect(self.url(self.context, '@@index'))
197        return
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