forked from sqlancer/sqlancer
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathMySQLToStringVisitor.java
More file actions
281 lines (256 loc) · 7.73 KB
/
MySQLToStringVisitor.java
File metadata and controls
281 lines (256 loc) · 7.73 KB
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
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
package sqlancer.mysql;
import java.util.List;
import java.util.stream.Collectors;
import sqlancer.Randomly;
import sqlancer.common.visitor.ToStringVisitor;
import sqlancer.mysql.ast.MySQLBetweenOperation;
import sqlancer.mysql.ast.MySQLBinaryComparisonOperation;
import sqlancer.mysql.ast.MySQLBinaryLogicalOperation;
import sqlancer.mysql.ast.MySQLBinaryOperation;
import sqlancer.mysql.ast.MySQLCastOperation;
import sqlancer.mysql.ast.MySQLCollate;
import sqlancer.mysql.ast.MySQLColumnReference;
import sqlancer.mysql.ast.MySQLComputableFunction;
import sqlancer.mysql.ast.MySQLConstant;
import sqlancer.mysql.ast.MySQLExists;
import sqlancer.mysql.ast.MySQLExpression;
import sqlancer.mysql.ast.MySQLInOperation;
import sqlancer.mysql.ast.MySQLOrderByTerm;
import sqlancer.mysql.ast.MySQLOrderByTerm.MySQLOrder;
import sqlancer.mysql.ast.MySQLSelect;
import sqlancer.mysql.ast.MySQLStringExpression;
import sqlancer.mysql.ast.MySQLTableReference;
import sqlancer.mysql.ast.MySQLUnaryPostfixOperation;
public class MySQLToStringVisitor extends ToStringVisitor<MySQLExpression> implements MySQLVisitor {
int ref;
@Override
public void visitSpecific(MySQLExpression expr) {
MySQLVisitor.super.visit(expr);
}
@Override
public void visit(MySQLSelect s) {
sb.append("SELECT ");
switch (s.getFromOptions()) {
case DISTINCT:
sb.append("DISTINCT ");
break;
case ALL:
sb.append(Randomly.fromOptions("ALL ", ""));
break;
case DISTINCTROW:
sb.append("DISTINCTROW ");
break;
default:
throw new AssertionError();
}
sb.append(s.getModifiers().stream().collect(Collectors.joining(" ")));
if (s.getModifiers().size() > 0) {
sb.append(" ");
}
if (s.getFetchColumns() == null) {
sb.append("*");
} else {
for (int i = 0; i < s.getFetchColumns().size(); i++) {
if (i != 0) {
sb.append(", ");
}
visit(s.getFetchColumns().get(i));
// MySQL does not allow duplicate column names
sb.append(" AS ");
sb.append("ref");
sb.append(ref++);
}
}
sb.append(" FROM ");
for (int i = 0; i < s.getFromList().size(); i++) {
if (i != 0) {
sb.append(", ");
}
visit(s.getFromList().get(i));
}
for (MySQLExpression j : s.getJoinList()) {
visit(j);
}
if (s.getWhereClause() != null) {
MySQLExpression whereClause = s.getWhereClause();
sb.append(" WHERE ");
visit(whereClause);
}
if (s.getGroupByExpressions() != null && s.getGroupByExpressions().size() > 0) {
sb.append(" ");
sb.append("GROUP BY ");
List<MySQLExpression> groupBys = s.getGroupByExpressions();
for (int i = 0; i < groupBys.size(); i++) {
if (i != 0) {
sb.append(", ");
}
visit(groupBys.get(i));
}
}
if (!s.getOrderByExpressions().isEmpty()) {
sb.append(" ORDER BY ");
List<MySQLExpression> orderBys = s.getOrderByExpressions();
for (int i = 0; i < orderBys.size(); i++) {
if (i != 0) {
sb.append(", ");
}
visit(s.getOrderByExpressions().get(i));
}
}
if (s.getLimitClause() != null) {
sb.append(" LIMIT ");
visit(s.getLimitClause());
}
if (s.getOffsetClause() != null) {
sb.append(" OFFSET ");
visit(s.getOffsetClause());
}
}
@Override
public void visit(MySQLConstant constant) {
sb.append(constant.getTextRepresentation());
}
@Override
public String get() {
return sb.toString();
}
@Override
public void visit(MySQLColumnReference column) {
sb.append(column.getColumn().getFullQualifiedName());
}
@Override
public void visit(MySQLUnaryPostfixOperation op) {
sb.append("(");
visit(op.getExpression());
sb.append(")");
sb.append(" IS ");
if (op.isNegated()) {
sb.append("NOT ");
}
switch (op.getOperator()) {
case IS_FALSE:
sb.append("FALSE");
break;
case IS_NULL:
if (Randomly.getBoolean()) {
sb.append("UNKNOWN");
} else {
sb.append("NULL");
}
break;
case IS_TRUE:
sb.append("TRUE");
break;
default:
throw new AssertionError(op);
}
}
@Override
public void visit(MySQLComputableFunction f) {
sb.append(f.getFunction().getName());
sb.append("(");
for (int i = 0; i < f.getArguments().length; i++) {
if (i != 0) {
sb.append(", ");
}
visit(f.getArguments()[i]);
}
sb.append(")");
}
@Override
public void visit(MySQLBinaryLogicalOperation op) {
sb.append("(");
visit(op.getLeft());
sb.append(")");
sb.append(" ");
sb.append(op.getTextRepresentation());
sb.append(" ");
sb.append("(");
visit(op.getRight());
sb.append(")");
}
@Override
public void visit(MySQLBinaryComparisonOperation op) {
sb.append("(");
visit(op.getLeft());
sb.append(") ");
sb.append(op.getOp().getTextRepresentation());
sb.append(" (");
visit(op.getRight());
sb.append(")");
}
@Override
public void visit(MySQLCastOperation op) {
sb.append("CAST(");
visit(op.getExpr());
sb.append(" AS ");
sb.append(op.getType());
sb.append(")");
}
@Override
public void visit(MySQLInOperation op) {
sb.append("(");
visit(op.getExpr());
sb.append(")");
if (!op.isTrue()) {
sb.append(" NOT");
}
sb.append(" IN ");
sb.append("(");
for (int i = 0; i < op.getListElements().size(); i++) {
if (i != 0) {
sb.append(", ");
}
visit(op.getListElements().get(i));
}
sb.append(")");
}
@Override
public void visit(MySQLBinaryOperation op) {
sb.append("(");
visit(op.getLeft());
sb.append(") ");
sb.append(op.getOp().getTextRepresentation());
sb.append(" (");
visit(op.getRight());
sb.append(")");
}
@Override
public void visit(MySQLOrderByTerm op) {
visit(op.getExpr());
sb.append(" ");
sb.append(op.getOrder() == MySQLOrder.ASC ? "ASC" : "DESC");
}
@Override
public void visit(MySQLExists op) {
sb.append(" EXISTS (");
visit(op.getExpr());
sb.append(")");
}
@Override
public void visit(MySQLStringExpression op) {
sb.append(op.getStr());
}
@Override
public void visit(MySQLBetweenOperation op) {
sb.append("(");
visit(op.getExpr());
sb.append(") BETWEEN (");
visit(op.getLeft());
sb.append(") AND (");
visit(op.getRight());
sb.append(")");
}
@Override
public void visit(MySQLTableReference ref) {
sb.append(ref.getTable().getName());
}
@Override
public void visit(MySQLCollate collate) {
sb.append("(");
visit(collate.getExpression());
sb.append(" ");
sb.append(collate.getOperatorRepresentation());
sb.append(")");
}
}