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
|
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "idmap2/ResourceUtils.h"
#include <memory>
#include <string>
#include "androidfw/StringPiece.h"
#include "androidfw/Util.h"
#include "idmap2/Result.h"
#include "idmap2/XmlParser.h"
#include "idmap2/ZipFile.h"
using android::StringPiece16;
using android::idmap2::Result;
using android::idmap2::XmlParser;
using android::idmap2::ZipFile;
using android::util::Utf16ToUtf8;
namespace android::idmap2::utils {
bool IsReference(uint8_t data_type) {
return data_type == Res_value::TYPE_REFERENCE || data_type == Res_value::TYPE_DYNAMIC_REFERENCE;
}
StringPiece DataTypeToString(uint8_t data_type) {
switch (data_type) {
case Res_value::TYPE_NULL:
return "null";
case Res_value::TYPE_REFERENCE:
return "reference";
case Res_value::TYPE_ATTRIBUTE:
return "attribute";
case Res_value::TYPE_STRING:
return "string";
case Res_value::TYPE_FLOAT:
return "float";
case Res_value::TYPE_DIMENSION:
return "dimension";
case Res_value::TYPE_FRACTION:
return "fraction";
case Res_value::TYPE_DYNAMIC_REFERENCE:
return "reference (dynamic)";
case Res_value::TYPE_DYNAMIC_ATTRIBUTE:
return "attribute (dynamic)";
case Res_value::TYPE_INT_DEC:
case Res_value::TYPE_INT_HEX:
return "integer";
case Res_value::TYPE_INT_BOOLEAN:
return "boolean";
case Res_value::TYPE_INT_COLOR_ARGB8:
case Res_value::TYPE_INT_COLOR_RGB8:
case Res_value::TYPE_INT_COLOR_RGB4:
return "color";
default:
return "unknown";
}
}
Result<std::string> ResToTypeEntryName(const AssetManager2& am, uint32_t resid) {
const auto name = am.GetResourceName(resid);
if (!name.has_value()) {
return Error("no resource 0x%08x in asset manager", resid);
}
std::string out;
if (name->type != nullptr) {
out.append(name->type, name->type_len);
} else {
out += Utf16ToUtf8(StringPiece16(name->type16, name->type_len));
}
out.append("/");
if (name->entry != nullptr) {
out.append(name->entry, name->entry_len);
} else {
out += Utf16ToUtf8(StringPiece16(name->entry16, name->entry_len));
}
return out;
}
Result<OverlayManifestInfo> ExtractOverlayManifestInfo(const std::string& path,
bool assert_overlay) {
std::unique_ptr<const ZipFile> zip = ZipFile::Open(path);
if (!zip) {
return Error("failed to open %s as a zip file", path.c_str());
}
std::unique_ptr<const MemoryChunk> entry = zip->Uncompress("AndroidManifest.xml");
if (!entry) {
return Error("failed to uncompress AndroidManifest.xml from %s", path.c_str());
}
Result<std::unique_ptr<const XmlParser>> xml = XmlParser::Create(entry->buf, entry->size);
if (!xml) {
return Error("failed to parse AndroidManifest.xml from %s", path.c_str());
}
auto manifest_it = (*xml)->tree_iterator();
if (manifest_it->event() != XmlParser::Event::START_TAG || manifest_it->name() != "manifest") {
return Error("root element tag is not <manifest> in AndroidManifest.xml of %s", path.c_str());
}
auto overlay_it = std::find_if(manifest_it.begin(), manifest_it.end(), [](const auto& it) {
return it.event() == XmlParser::Event::START_TAG && it.name() == "overlay";
});
OverlayManifestInfo info{};
if (overlay_it == manifest_it.end()) {
if (!assert_overlay) {
return info;
}
return Error("<overlay> missing from AndroidManifest.xml of %s", path.c_str());
}
if (auto result_str = overlay_it->GetAttributeStringValue("targetPackage")) {
info.target_package = *result_str;
} else {
return Error("android:targetPackage missing from <overlay> of %s: %s", path.c_str(),
result_str.GetErrorMessage().c_str());
}
if (auto result_str = overlay_it->GetAttributeStringValue("targetName")) {
info.target_name = *result_str;
}
if (auto result_value = overlay_it->GetAttributeValue("resourcesMap")) {
if (IsReference((*result_value).dataType)) {
info.resource_mapping = (*result_value).data;
} else {
return Error("android:resourcesMap is not a reference in AndroidManifest.xml of %s",
path.c_str());
}
}
if (auto result_value = overlay_it->GetAttributeValue("isStatic")) {
if ((*result_value).dataType >= Res_value::TYPE_FIRST_INT &&
(*result_value).dataType <= Res_value::TYPE_LAST_INT) {
info.is_static = (*result_value).data != 0U;
} else {
return Error("android:isStatic is not a boolean in AndroidManifest.xml of %s", path.c_str());
}
}
if (auto result_value = overlay_it->GetAttributeValue("priority")) {
if ((*result_value).dataType >= Res_value::TYPE_FIRST_INT &&
(*result_value).dataType <= Res_value::TYPE_LAST_INT) {
info.priority = (*result_value).data;
} else {
return Error("android:priority is not an integer in AndroidManifest.xml of %s", path.c_str());
}
}
if (auto result_str = overlay_it->GetAttributeStringValue("requiredSystemPropertyName")) {
info.requiredSystemPropertyName = *result_str;
}
if (auto result_str = overlay_it->GetAttributeStringValue("requiredSystemPropertyValue")) {
info.requiredSystemPropertyValue = *result_str;
}
return info;
}
} // namespace android::idmap2::utils
|
