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
|
/*******************************************************************************
* Copyright (c) 2014 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.mapping;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.Deque;
import com.google.common.collect.Queues;
import cuchaz.enigma.Constants;
import cuchaz.enigma.mapping.SignatureUpdater.ClassNameUpdater;
public class MappingsReader
{
public Mappings read( Reader in )
throws IOException, MappingParseException
{
return read( new BufferedReader( in ) );
}
public Mappings read( BufferedReader in )
throws IOException, MappingParseException
{
Mappings mappings = new Mappings();
Deque<Object> mappingStack = Queues.newArrayDeque();
int lineNumber = 0;
String line = null;
while( ( line = in.readLine() ) != null )
{
lineNumber++;
// strip comments
int commentPos = line.indexOf( '#' );
if( commentPos >= 0 )
{
line = line.substring( 0, commentPos );
}
// skip blank lines
if( line.trim().length() <= 0 )
{
continue;
}
// get the indent of this line
int indent = 0;
for( int i=0; i<line.length(); i++ )
{
if( line.charAt( i ) != '\t' )
{
break;
}
indent++;
}
// handle stack pops
while( indent < mappingStack.size() )
{
mappingStack.pop();
}
String[] parts = line.trim().split( "\\s" );
try
{
// read the first token
String token = parts[0];
if( token.equalsIgnoreCase( "CLASS" ) )
{
ClassMapping classMapping;
if( indent == 0 )
{
// outer class
classMapping = readClass( parts, false );
mappings.addClassMapping( classMapping );
}
else if( indent == 1 )
{
// inner class
if( !( mappingStack.getFirst() instanceof ClassMapping ) )
{
throw new MappingParseException( lineNumber, "Unexpected CLASS entry here!" );
}
classMapping = readClass( parts, true );
((ClassMapping)mappingStack.getFirst()).addInnerClassMapping( classMapping );
}
else
{
throw new MappingParseException( lineNumber, "Unexpected CLASS entry nesting!" );
}
mappingStack.push( classMapping );
}
else if( token.equalsIgnoreCase( "FIELD" ) )
{
if( mappingStack.isEmpty() || !(mappingStack.getFirst() instanceof ClassMapping) )
{
throw new MappingParseException( lineNumber, "Unexpected FIELD entry here!" );
}
((ClassMapping)mappingStack.getFirst()).addFieldMapping( readField( parts ) );
}
else if( token.equalsIgnoreCase( "METHOD" ) )
{
if( mappingStack.isEmpty() || !(mappingStack.getFirst() instanceof ClassMapping) )
{
throw new MappingParseException( lineNumber, "Unexpected METHOD entry here!" );
}
MethodMapping methodMapping = readMethod( parts );
((ClassMapping)mappingStack.getFirst()).addMethodMapping( methodMapping );
mappingStack.push( methodMapping );
}
else if( token.equalsIgnoreCase( "ARG" ) )
{
if( mappingStack.isEmpty() || !(mappingStack.getFirst() instanceof MethodMapping) )
{
throw new MappingParseException( lineNumber, "Unexpected ARG entry here!" );
}
((MethodMapping)mappingStack.getFirst()).addArgumentMapping( readArgument( parts ) );
}
}
catch( ArrayIndexOutOfBoundsException | NumberFormatException ex )
{
throw new MappingParseException( lineNumber, "Malformed line!" );
}
}
return mappings;
}
private ArgumentMapping readArgument( String[] parts )
{
return new ArgumentMapping( Integer.parseInt( parts[1] ), parts[2] );
}
private ClassMapping readClass( String[] parts, boolean makeSimple )
{
if( parts.length == 2 )
{
String obfName = processName( parts[1], makeSimple );
return new ClassMapping( obfName );
}
else
{
String obfName = processName( parts[1], makeSimple );
String deobfName = processName( parts[2], makeSimple );
return new ClassMapping( obfName, deobfName );
}
}
private String processName( String name, boolean makeSimple )
{
if( makeSimple )
{
return new ClassEntry( name ).getSimpleName();
}
else
{
return moveClassOutOfDefaultPackage( name, Constants.NonePackage );
}
}
private String moveClassOutOfDefaultPackage( String className, String newPackageName )
{
ClassEntry classEntry = new ClassEntry( className );
if( classEntry.isInDefaultPackage() )
{
return newPackageName + "/" + classEntry.getName();
}
return className;
}
private FieldMapping readField( String[] parts )
{
return new FieldMapping( parts[1], parts[2] );
}
private MethodMapping readMethod( String[] parts )
{
if( parts.length == 3 )
{
String obfName = parts[1];
String obfSignature = moveSignatureOutOfDefaultPackage( parts[2], Constants.NonePackage );
return new MethodMapping( obfName, obfSignature );
}
else
{
String obfName = parts[1];
String deobfName = parts[2];
String obfSignature = moveSignatureOutOfDefaultPackage( parts[3], Constants.NonePackage );
if( obfName.equals( deobfName ) )
{
return new MethodMapping( obfName, obfSignature );
}
else
{
return new MethodMapping( obfName, obfSignature, deobfName );
}
}
}
private String moveSignatureOutOfDefaultPackage( String signature, final String newPackageName )
{
return SignatureUpdater.update( signature, new ClassNameUpdater( )
{
@Override
public String update( String className )
{
ClassEntry classEntry = new ClassEntry( className );
if( classEntry.isInDefaultPackage() )
{
return newPackageName + "/" + className;
}
return className;
}
} );
}
}
|
