1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
Copyright 2008-2011 Clipperz Srl
This file is part of Clipperz Community Edition.
Clipperz Community Edition is an online password manager.
For further information about its features and functionalities please
refer to http://www.clipperz.com.
* Clipperz Community Edition 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.
* Clipperz Community Edition 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 Clipperz Community Edition. If not, see
<http://www.gnu.org/licenses/>.
*/
if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
if (typeof(Clipperz.PM) == 'undefined') { Clipperz.PM = {}; }
//=============================================================================
Clipperz.PM.Toll = function(args) {
args = args || {};
this._requestType = args.requestType;
this._targetValue = args.targetValue;
this._cost = args.cost;
this._toll = null;
return this;
}
Clipperz.PM.Toll.prototype = MochiKit.Base.update(null, {
'toString': function() {
return "Clipperz.PM.Toll (" + this.requestType() + ": " + this.cost() + " - " + ((this.toll() == null)? 'UNPAID' : 'PAID') + ")";
},
//-------------------------------------------------------------------------
'requestType': function() {
return this._requestType;
},
//-------------------------------------------------------------------------
'targetValue': function() {
return this._targetValue;
},
//-------------------------------------------------------------------------
'cost': function() {
return this._cost;
},
//-------------------------------------------------------------------------
'toll': function() {
return this._toll;
},
//-------------------------------------------------------------------------
/*
'__pay': function() {
var result;
var targetData;
var targetMatchSize;
var prefixMatchingBits;
var payment;
var i;
if (this.toll() == null) {
i = 0;
targetData = new Clipperz.ByteArray("0x" + this.targetValue());
targetMatchSize = this.cost();
payment = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32);
do {
var paymentData;
//payment = Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32);
payment.increment();
paymentData = Clipperz.Crypto.SHA.sha256(payment);
// prefixMatchingBits = this.prefixMatchingBits(targetData, paymentData);
prefixMatchingBits = Clipperz.ByteArray.prefixMatchingBits(targetData, paymentData);
i++;
} while (prefixMatchingBits < targetMatchSize);
this._toll = payment.toHexString().substring(2)
}
return this;
},
*/
//-------------------------------------------------------------------------
'innerDeferredPay': function (aTargetValue, aCost, aPayment) {
var deferredResult;
var result;
var payment;
var i;
result = null;
payment = aPayment;
i = 0;
while ((result == null) && (i < Clipperz.PM.Toll.numberOfCloseLoopIterations)) {
if (Clipperz.ByteArray.prefixMatchingBits(aTargetValue, Clipperz.Crypto.SHA.sha256(payment)) > aCost) {
result = payment;
} else {
payment.increment();
}
i ++;
}
if (result == null) {
deferredResult = MochiKit.Async.callLater(Clipperz.PM.Toll.pauseBetweenEachCloseLoop, MochiKit.Base.method(this, 'innerDeferredPay', aTargetValue, aCost, aPayment));
} else {
deferredResult = MochiKit.Async.succeed(result);
}
return deferredResult;
},
'deferredPay': function () {
var deferredResult;
var toll;
toll = this;
deferredResult = new Clipperz.Async.Deferred("Toll.deferredPay");
//deferredResult.addLog("--->>> deferredPay - " + this.cost());
deferredResult.addMethod(Clipperz.Crypto.PRNG.defaultRandomGenerator(), 'getRandomBytes', 32);
deferredResult.addMethod(toll, 'innerDeferredPay', new Clipperz.ByteArray("0x" + this.targetValue()), this.cost());
deferredResult.addCallback(MochiKit.Base.bind(function(aPayment) {
var result;
result = {
targetValue: this.targetValue(),
toll: aPayment.toHexString().substr(2)
};
return result;
}, this));
//deferredResult.addLog("<<<--- deferredPay - " + this.cost());
deferredResult.callback();
return deferredResult;
},
//=========================================================================
__syntaxFix__: "syntax fix"
});
Clipperz.PM.Toll.validate = function(aTargetValue, aToll, aCost) {
var result;
var tollValue;
var targetValue;
var hashedTollValue;
var payedToll;
tollValue = new Clipperz.ByteArray("0x" + aToll);
targetValue = new Clipperz.ByteArray("0x" + aTargetValue);
hashedTollValue = Clipperz.Crypto.SHA.sha256(tollValue);
payedToll = Clipperz.ByteArray.prefixMatchingBits(targetValue, hashedTollValue);
if (payedToll < aCost) {
result = false;
} else {
result = true;
}
return result;
};
Clipperz.PM.Toll.numberOfCloseLoopIterations = 50;
Clipperz.PM.Toll.pauseBetweenEachCloseLoop = 0.5;
|
