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DigitalCash.cpp
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1 /************************************************************
2  *
3  * DigitalCash.cpp
4  *
5  */
6 
7 /************************************************************
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10 
11  * OPEN TRANSACTIONS
12  *
13  * Financial Cryptography and Digital Cash
14  * Library, Protocol, API, Server, CLI, GUI
15  *
16  * -- Anonymous Numbered Accounts.
17  * -- Untraceable Digital Cash.
18  * -- Triple-Signed Receipts.
19  * -- Cheques, Vouchers, Transfers, Inboxes.
20  * -- Basket Currencies, Markets, Payment Plans.
21  * -- Signed, XML, Ricardian-style Contracts.
22  * -- Scripted smart contracts.
23  *
24  * Copyright (C) 2010-2013 by "Fellow Traveler" (A pseudonym)
25  *
26  * EMAIL:
28  *
29  * BITCOIN: 1NtTPVVjDsUfDWybS4BwvHpG2pdS9RnYyQ
30  *
31  * KEY FINGERPRINT (PGP Key in license file):
32  * 9DD5 90EB 9292 4B48 0484 7910 0308 00ED F951 BB8E
33  *
34  * OFFICIAL PROJECT WIKI(s):
35  * https://github.com/FellowTraveler/Moneychanger
36  * https://github.com/FellowTraveler/Open-Transactions/wiki
37  *
38  * WEBSITE:
39  * http://www.OpenTransactions.org/
40  *
41  * Components and licensing:
42  * -- Moneychanger..A Java client GUI.....LICENSE:.....GPLv3
43  * -- otlib.........A class library.......LICENSE:...LAGPLv3
44  * -- otapi.........A client API..........LICENSE:...LAGPLv3
45  * -- opentxs/ot....Command-line client...LICENSE:...LAGPLv3
46  * -- otserver......Server Application....LICENSE:....AGPLv3
47  * Github.com/FellowTraveler/Open-Transactions/wiki/Components
48  *
49  * All of the above OT components were designed and written by
50  * Fellow Traveler, with the exception of Moneychanger, which
51  * was contracted out to Vicky C ([email protected]).
52  * The open-source community has since actively contributed.
53  *
54  * -----------------------------------------------------
55  *
56  * LICENSE:
57  * This program is free software: you can redistribute it
58  * and/or modify it under the terms of the GNU Affero
59  * General Public License as published by the Free Software
60  * Foundation, either version 3 of the License, or (at your
61  * option) any later version.
62  *
63  * ADDITIONAL PERMISSION under the GNU Affero GPL version 3
64  * section 7: (This paragraph applies only to the LAGPLv3
65  * components listed above.) If you modify this Program, or
66  * any covered work, by linking or combining it with other
67  * code, such other code is not for that reason alone subject
68  * to any of the requirements of the GNU Affero GPL version 3.
69  * (==> This means if you are only using the OT API, then you
70  * don't have to open-source your code--only your changes to
71  * Open-Transactions itself must be open source. Similar to
72  * LGPLv3, except it applies to software-as-a-service, not
73  * just to distributing binaries.)
74  *
75  * Extra WAIVER for OpenSSL, Lucre, and all other libraries
76  * used by Open Transactions: This program is released under
77  * the AGPL with the additional exemption that compiling,
78  * linking, and/or using OpenSSL is allowed. The same is true
79  * for any other open source libraries included in this
80  * project: complete waiver from the AGPL is hereby granted to
81  * compile, link, and/or use them with Open-Transactions,
82  * according to their own terms, as long as the rest of the
83  * Open-Transactions terms remain respected, with regard to
84  * the Open-Transactions code itself.
85  *
86  * Lucre License:
87  * This code is also "dual-license", meaning that Ben Lau-
88  * rie's license must also be included and respected, since
89  * the code for Lucre is also included with Open Transactions.
90  * See Open-Transactions/src/otlib/lucre/LUCRE_LICENSE.txt
91  * The Laurie requirements are light, but if there is any
92  * problem with his license, simply remove the Lucre code.
93  * Although there are no other blind token algorithms in Open
94  * Transactions (yet. credlib is coming), the other functions
95  * will continue to operate.
96  * See Lucre on Github: https://github.com/benlaurie/lucre
97  * -----------------------------------------------------
98  * You should have received a copy of the GNU Affero General
99  * Public License along with this program. If not, see:
100  * http://www.gnu.org/licenses/
101  *
102  * If you would like to use this software outside of the free
103  * software license, please contact FellowTraveler.
104  * (Unfortunately many will run anonymously and untraceably,
105  * so who could really stop them?)
106  *
107  * DISCLAIMER:
108  * This program is distributed in the hope that it will be
109  * useful, but WITHOUT ANY WARRANTY; without even the implied
110  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
111  * PURPOSE. See the GNU Affero General Public License for
112  * more details.
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132 
133 #include "../core/stdafx.hpp"
134 
135 #include "DigitalCash.hpp"
136 
137 #include "../core/util/OTDataFolder.hpp"
138 #include "../core/util/OTPaths.hpp"
139 
140 #include <fstream>
141 
142 namespace opentxs
143 {
144 
145 #ifdef OT_CASH_USING_MAGIC_MONEY
146 
147 // Todo: Someday...
148 
149 #endif
150 
151 // Open-Transactions
152 // NOTE: review this in security audit...
153 // This is da2ce7's fix for the problems that appeared from removing
154 // Lucre from the OT source and linking it separately. (Without applink.c
155 // which causes cross-boundary issues with file handles.)
156 #ifdef _WIN32
157 #ifdef _DEBUG
158 
159 void CleanupDumpFile(const char* filepathexact)
160 {
161  std::fstream f(filepathexact, std::ios::in);
162 
163  if (f) {
164  f.close();
165  f.open(filepathexact, std::ios::out | std::ios::trunc);
166  f.close();
167  remove(filepathexact);
168  }
169 }
170 
171 void SetDumper(const char* filepathexact)
172 {
173  // lets clear the last time we used this file.
174  CleanupDumpFile(filepathexact);
175  BIO* out = BIO_new_file(filepathexact, "w");
176  assert(out);
177  SetDumper(out);
178 }
179 
180 #endif
181 #endif
182 
183 #ifdef OT_CASH_USING_LUCRE
184 
185 // We don't need this for release builds
187 {
188 #ifdef _WIN32
189 #ifdef _DEBUG
190  OTString strOpenSSLDumpFilename("openssl.dumpfile"), strOpenSSLDumpFilePath,
191  strDataPath; // todo security. We shouldn't necessarily be dumping this
192  // info to file AT ALL.
193  bool bGetDataFolderSuccess = OTDataFolder::Get(strDataPath);
194  OT_ASSERT_MSG(bGetDataFolderSuccess,
195  "_OT_LucreDumper(): Failed to Get Data Path");
196  bool bRelativeToCanonicalSuccess = OTPaths::RelativeToCanonical(
197  strOpenSSLDumpFilePath, strDataPath, strOpenSSLDumpFilename);
198  OT_ASSERT_MSG(bRelativeToCanonicalSuccess,
199  "_OT_LucreDumper(): Unable To Build Full Path");
200 
201  strOpenSSLDumpFilename.Set("");
202  strDataPath.Set("");
203  SetDumper(strOpenSSLDumpFilePath.Get()); // We are only dumping this way
204  // currently as a temporary
205  // solution to the applink.c
206  // openssl thing that can cause
207  // crashes in Lucre when
208  // withdrawing cash. (Caused by
209  // da2ce7 removing Lucre from OT
210  // and moving it into a dylib.)
211  m_str_dumpfile = strOpenSSLDumpFilePath.Get();
212  strOpenSSLDumpFilePath.Set("");
213 #endif
214 #else
215  SetDumper(stderr);
216 #endif
217 }
218 
220 {
221 #ifdef _WIN32
222 #ifdef _DEBUG
223  CleanupDumpFile(m_str_dumpfile.c_str());
224 #endif
225 #endif
226 }
227 
228 #else // No digital cash lib is selected? Perhaps error message here?
229 
230 #endif // Which digital cash library we're using.
231 
232 } // namespace opentxs
static EXPORT bool RelativeToCanonical(OTString &out_strCanonicalPath, const OTString &strBasePath, const OTString &strRelativePath)
Definition: OTPaths.cpp:1280
EXPORT void Set(const char *data, uint32_t enforcedMaxLength=0)
Definition: OTString.cpp:1055
#define OT_ASSERT_MSG(x, s)
Definition: Assert.hpp:155
EXPORT const char * Get() const
Definition: OTString.cpp:1045
void SetDumper(BIO *out)
static EXPORT OTString Get()