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
|
package cuchaz.enigma.mapping;
import com.google.common.base.Charsets;
import com.google.common.collect.Queues;
import cuchaz.enigma.throwables.MappingConflict;
import cuchaz.enigma.throwables.MappingParseException;
import java.io.*;
import java.util.Deque;
public class MappingsEnigmaReader {
public Mappings read(File file) throws IOException, MappingParseException {
Mappings mappings;
// Multiple file
if (file.isDirectory()) {
mappings = new Mappings(Mappings.FormatType.ENIGMA_DIRECTORY);
readDirectory(mappings, file);
} else {
mappings = new Mappings();
readFile(mappings, file);
}
return mappings;
}
public void readDirectory(Mappings mappings, File directory) throws IOException, MappingParseException {
File[] files = directory.listFiles();
if (files != null) {
for (File file : files) {
if (file.isFile() && !file.getName().startsWith(".") && file.getName().endsWith(".mapping"))
readFile(mappings, file);
else if (file.isDirectory())
readDirectory(mappings, file.getAbsoluteFile());
}
mappings.savePreviousState();
} else
throw new IOException("Cannot access directory" + directory.getAbsolutePath());
}
public Mappings readFile(Mappings mappings, File file) throws IOException, MappingParseException {
BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(file), Charsets.UTF_8));
Deque<Object> mappingStack = Queues.newArrayDeque();
int lineNumber = 0;
String line;
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 {
// inner class
if (!(mappingStack.peek() instanceof ClassMapping)) {
throw new MappingParseException(file, lineNumber, "Unexpected CLASS entry here!");
}
classMapping = readClass(parts, true);
((ClassMapping) mappingStack.peek()).addInnerClassMapping(classMapping);
}
mappingStack.push(classMapping);
} else if (token.equalsIgnoreCase("FIELD")) {
if (mappingStack.isEmpty() || !(mappingStack.peek() instanceof ClassMapping)) {
throw new MappingParseException(file, lineNumber, "Unexpected FIELD entry here!");
}
((ClassMapping) mappingStack.peek()).addFieldMapping(readField(parts));
} else if (token.equalsIgnoreCase("METHOD")) {
if (mappingStack.isEmpty() || !(mappingStack.peek() instanceof ClassMapping)) {
throw new MappingParseException(file, lineNumber, "Unexpected METHOD entry here!");
}
MethodMapping methodMapping = readMethod(parts);
((ClassMapping) mappingStack.peek()).addMethodMapping(methodMapping);
mappingStack.push(methodMapping);
} else if (token.equalsIgnoreCase("ARG")) {
if (mappingStack.isEmpty() || !(mappingStack.peek() instanceof MethodMapping)) {
throw new MappingParseException(file, lineNumber, "Unexpected ARG entry here!");
}
((MethodMapping) mappingStack.peek()).addArgumentMapping(readArgument(parts));
}
} catch (ArrayIndexOutOfBoundsException | IllegalArgumentException ex) {
throw new MappingParseException(file, lineNumber, "Malformed line:\n" + line);
} catch (MappingConflict e) {
throw new MappingParseException(file, lineNumber, e.getMessage());
}
}
in.close();
return mappings;
}
private LocalVariableMapping readArgument(String[] parts) {
return new LocalVariableMapping(Integer.parseInt(parts[1]), parts[2]);
}
private ClassMapping readClass(String[] parts, boolean makeSimple) {
if (parts.length == 2) {
return new ClassMapping(parts[1]);
} else if (parts.length == 3) {
boolean access = parts[2].startsWith("ACC:");
ClassMapping mapping;
if (access)
mapping = new ClassMapping(parts[1], null, Mappings.EntryModifier.valueOf(parts[2].substring(4)));
else
mapping = new ClassMapping(parts[1], parts[2]);
return mapping;
} else if (parts.length == 4)
return new ClassMapping(parts[1], parts[2], Mappings.EntryModifier.valueOf(parts[3].substring(4)));
return null;
}
/* TEMP */
protected FieldMapping readField(String[] parts) {
FieldMapping mapping = null;
if (parts.length == 4) {
boolean access = parts[3].startsWith("ACC:");
if (access)
mapping = new FieldMapping(parts[1], new TypeDescriptor(parts[2]), null,
Mappings.EntryModifier.valueOf(parts[3].substring(4)));
else
mapping = new FieldMapping(parts[1], new TypeDescriptor(parts[3]), parts[2], Mappings.EntryModifier.UNCHANGED);
} else if (parts.length == 5)
mapping = new FieldMapping(parts[1], new TypeDescriptor(parts[3]), parts[2], Mappings.EntryModifier.valueOf(parts[4].substring(4)));
return mapping;
}
private MethodMapping readMethod(String[] parts) {
MethodMapping mapping = null;
if (parts.length == 3)
mapping = new MethodMapping(parts[1], new MethodDescriptor(parts[2]));
else if (parts.length == 4) {
boolean access = parts[3].startsWith("ACC:");
if (access)
mapping = new MethodMapping(parts[1], new MethodDescriptor(parts[2]), null, Mappings.EntryModifier.valueOf(parts[3].substring(4)));
else
mapping = new MethodMapping(parts[1], new MethodDescriptor(parts[3]), parts[2]);
} else if (parts.length == 5)
mapping = new MethodMapping(parts[1], new MethodDescriptor(parts[3]), parts[2],
Mappings.EntryModifier.valueOf(parts[4].substring(4)));
return mapping;
}
}
|
