blob: f3816939117c42785e21318911558df1524386a0 (
plain) (
blame)
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
|
/*
* Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.util;
import android.content.Context;
import android.os.Build;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public final class SharedLibraryLoader {
private static final String TAG = "WireGuard/" + SharedLibraryLoader.class.getSimpleName();
private SharedLibraryLoader() {
}
public static void loadSharedLibrary(final Context context, final String libName) {
Throwable noAbiException;
try {
System.loadLibrary(libName);
return;
} catch (final UnsatisfiedLinkError e) {
Log.d(TAG, "Failed to load library normally, so attempting to extract from apk", e);
noAbiException = e;
}
final Collection<String> apks = new HashSet<>();
if (context.getApplicationInfo().sourceDir != null)
apks.add(context.getApplicationInfo().sourceDir);
if (context.getApplicationInfo().splitSourceDirs != null)
apks.addAll(Arrays.asList(context.getApplicationInfo().splitSourceDirs));
for (final String apk : apks) {
final ZipFile zipFile;
try {
zipFile = new ZipFile(new File(apk), ZipFile.OPEN_READ);
} catch (final IOException e) {
throw new RuntimeException(e);
}
final String mappedLibName = System.mapLibraryName(libName);
final byte[] buffer = new byte[1024 * 32];
for (final String abi : Build.SUPPORTED_ABIS) {
final String libZipPath = "lib" + File.separatorChar + abi + File.separatorChar + mappedLibName;
final ZipEntry zipEntry = zipFile.getEntry(libZipPath);
if (zipEntry == null)
continue;
File f = null;
try {
f = File.createTempFile("lib", ".so", context.getCacheDir());
Log.d(TAG, "Extracting apk:/" + libZipPath + " to " + f.getAbsolutePath() + " and loading");
try (final FileOutputStream out = new FileOutputStream(f);
final InputStream in = zipFile.getInputStream(zipEntry)) {
int len;
while ((len = in.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
}
System.load(f.getAbsolutePath());
return;
} catch (final Exception e) {
Log.d(TAG, "Failed to load library apk:/" + libZipPath, e);
noAbiException = e;
} finally {
if (f != null)
// noinspection ResultOfMethodCallIgnored
f.delete();
}
}
}
if (noAbiException instanceof RuntimeException)
throw (RuntimeException) noAbiException;
throw new RuntimeException(noAbiException);
}
}
|
