StringIdItem.java revision 5b71582325a2e9df14f627d731b46a91ee8064c5 
1/*
2 * Copyright 2013, Google Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 *     * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *     * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *     * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.dexbacked.raw;
33
34import org.jf.dexlib2.dexbacked.DexBackedDexFile;
35import org.jf.dexlib2.util.AnnotatedBytes;
36import org.jf.util.StringUtils;
37
38import javax.annotation.Nonnull;
39
40public class StringIdItem {
41    public static final int ITEM_SIZE = 4;
42
43
44    public static SectionAnnotator getAnnotator() {
45        return new SectionAnnotator() {
46            @Override
47            public void annotateSection(@Nonnull AnnotatedBytes out, @Nonnull DexBackedDexFile dexFile, int length) {
48                int startOffset = out.getCursor();
49                if (length > 0) {
50                    out.annotate(0, "-----------------------------");
51                    out.annotate(0, "string_id_item section");
52                    out.annotate(0, "-----------------------------");
53                    out.annotate(0, "");
54
55                    for (int i=0; i<length; i++) {
56                        out.annotate(0, "[%d] string_id_item", i);
57                        out.indent();
58                        annotateString(out, dexFile, i, startOffset + i * ITEM_SIZE);
59                        out.deindent();
60                    }
61                }
62            }
63        };
64    }
65
66    private static void annotateString(@Nonnull AnnotatedBytes out, @Nonnull DexBackedDexFile dexFile, int index,
67                                       int offset) {
68        int stringDataOffset = dexFile.readSmallUint(offset);
69        try {
70            String stringValue = dexFile.getString(index);
71            out.annotate(4, "string_data_item[0x%x]: \"%s\"", stringDataOffset, StringUtils.escapeString(stringValue));
72            return;
73        } catch (Exception ex) {
74            System.err.print("Error while resolving string value at index: ");
75            System.err.print(index);
76            ex.printStackTrace(System.err);
77        }
78
79        out.annotate(4, "string_id_item[0x%x]", stringDataOffset);
80    }
81
82    public static String getReferenceAnnotation(@Nonnull DexBackedDexFile dexFile, int stringIndex) {
83        try {
84            String string = dexFile.getString(stringIndex);
85            return String.format("string_id_item[%d]: \"%s\"", stringIndex, StringUtils.escapeString(string));
86        } catch (Exception ex) {
87            ex.printStackTrace(System.err);
88        }
89        return String.format("string_id_item[%d]", stringIndex);
90    }
91}
92