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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
Copyright 2013 to 2017 TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#include <fcntl.h>
#include <string>
#include <unistd.h>
#include "data.hpp"
#include "partitions.hpp"
#include "set_metadata.h"
#include "twrpDigestDriver.hpp"
#include "twrp-functions.hpp"
#include "twcommon.h"
#include "variables.h"
#include "gui/gui.hpp"
#include "twrpDigest/twrpDigest.hpp"
#include "twrpDigest/twrpMD5.hpp"
#include "twrpDigest/twrpSHA.hpp"
bool twrpDigestDriver::Check_File_Digest(const string& Filename) {
twrpDigest *digest;
string digestfile = Filename, file_name = Filename;
string digest_str;
bool use_sha2 = false;
#ifndef TW_NO_SHA2_LIBRARY
digestfile += ".sha2";
if (TWFunc::Path_Exists(digestfile)) {
digest = new twrpSHA256();
use_sha2 = true;
}
else {
digestfile = Filename + ".sha256";
if (TWFunc::Path_Exists(digestfile)) {
digest = new twrpSHA256();
use_sha2 = true;
} else {
digest = new twrpMD5();
digestfile = Filename + ".md5";
if (!TWFunc::Path_Exists(digestfile)) {
digestfile = Filename + ".md5sum";
}
}
}
#else
digest = new twrpMD5();
digestfile = Filename + ".md5";
if (!TWFunc::Path_Exists(digestfile)) {
digestfile = Filename + ".md5sum";
}
#endif
if (!TWFunc::Path_Exists(digestfile)) {
delete digest;
if (Filename.find(".zip") == std::string::npos && Filename.find(".map") == std::string::npos) {
gui_msg(Msg(msg::kError, "no_digest_found=No digest file found for '{1}'. Please unselect Enable Digest verification to restore.")(Filename));
} else {
return true;
}
return false;
}
if (TWFunc::read_file(digestfile, digest_str) != 0) {
gui_msg("digest_error=Digest Error!");
delete digest;
return false;
}
if (!stream_file_to_digest(file_name, digest)) {
delete digest;
return false;
}
string digest_check = digest->return_digest_string();
if (digest_check == digest_str) {
if (use_sha2)
LOGINFO("SHA2 Digest: %s %s\n", digest_str.c_str(), TWFunc::Get_Filename(Filename).c_str());
else
LOGINFO("MD5 Digest: %s %s\n", digest_str.c_str(), TWFunc::Get_Filename(Filename).c_str());
gui_msg(Msg("digest_matched=Digest matched for '{1}'.")(Filename));
delete digest;
return true;
}
gui_msg(Msg(msg::kError, "digest_fail_match=Digest failed to match on '{1}'.")(Filename));
delete digest;
return false;
}
bool twrpDigestDriver::Check_Digest(string Full_Filename) {
char split_filename[512];
int index = 0;
sync();
if (!TWFunc::Path_Exists(Full_Filename)) {
// This is a split archive, we presume
memset(split_filename, 0, sizeof(split_filename));
while (index < 1000) {
sprintf(split_filename, "%s%03i", Full_Filename.c_str(), index);
if (!TWFunc::Path_Exists(split_filename))
break;
LOGINFO("split_filename: %s\n", split_filename);
if (!Check_File_Digest(split_filename))
return false;
index++;
}
return true;
}
return Check_File_Digest(Full_Filename); // Single file archive
}
bool twrpDigestDriver::Write_Digest(string Full_Filename) {
twrpDigest *digest;
string digest_filename, digest_str;
int use_sha2;
#ifdef TW_NO_SHA2_LIBRARY
use_sha2 = 0;
#else
DataManager::GetValue(TW_USE_SHA2, use_sha2);
#endif
if (use_sha2) {
#ifndef TW_NO_SHA2_LIBRARY
digest = new twrpSHA256();
digest_filename = Full_Filename + ".sha2";
if (!stream_file_to_digest(Full_Filename, digest)) {
delete digest;
return false;
}
digest_str = digest->return_digest_string();
if (digest_str.empty()) {
delete digest;
return false;
}
LOGINFO("SHA2 Digest: %s %s\n", digest_str.c_str(), TWFunc::Get_Filename(Full_Filename).c_str());
#endif
}
else {
digest = new twrpMD5();
digest_filename = Full_Filename + ".md5";
if (!stream_file_to_digest(Full_Filename, digest)) {
delete digest;
return false;
}
digest_str = digest->return_digest_string();
if (digest_str.empty()) {
delete digest;
return false;
}
LOGINFO("MD5 Digest: %s %s\n", digest_str.c_str(), TWFunc::Get_Filename(Full_Filename).c_str());
}
digest_str = digest_str + " " + TWFunc::Get_Filename(Full_Filename) + "\n";
LOGINFO("digest_filename: %s\n", digest_filename.c_str());
if (TWFunc::write_to_file(digest_filename, digest_str) == 0) {
tw_set_default_metadata(digest_filename.c_str());
gui_msg("digest_created= * Digest Created.");
}
else {
gui_err("digest_error= * Digest Error!");
delete digest;
return false;
}
delete digest;
return true;
}
bool twrpDigestDriver::Make_Digest(string Full_Filename) {
string command, result;
TWFunc::GUI_Operation_Text(TW_GENERATE_DIGEST_TEXT, gui_parse_text("{@generating_digest1}"));
gui_msg("generating_digest2= * Generating digest...");
if (TWFunc::Path_Exists(Full_Filename)) {
if (!Write_Digest(Full_Filename))
return false;
} else {
char filename[512];
int index = 0;
sprintf(filename, "%s%03i", Full_Filename.c_str(), index);
while (index < 1000) {
string digest_src(filename);
if (TWFunc::Path_Exists(filename)) {
if (!Write_Digest(filename))
return false;
}
else
break;
index++;
sprintf(filename, "%s%03i", Full_Filename.c_str(), index);
}
if (index == 0) {
LOGERR("Backup file: '%s' not found!\n", filename);
return false;
}
gui_msg("digest_created= * Digest Created.");
}
return true;
}
bool twrpDigestDriver::stream_file_to_digest(string filename, twrpDigest* digest) {
char buf[4096];
int bytes;
int fd = open(filename.c_str(), O_RDONLY);
if (fd < 0) {
return false;
}
while ((bytes = read(fd, &buf, sizeof(buf))) != 0) {
digest->update((unsigned char*)buf, bytes);
}
close(fd);
return true;
}
|
