blob: c95546e489e224a61dcbf25a1698072ebc098de4 (
plain)
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
|
/*
* Copyright (C) 2006 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.
*/
package com.android.server.am;
import android.content.Intent;
import android.net.Uri;
import java.io.PrintWriter;
import java.util.HashSet;
/**
* Description of a permission granted to an app to access a particular URI.
*
* CTS tests for this functionality can be run with "runtest cts-appsecurity".
*
* Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert
* /src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java
*/
class UriPermission {
final int uid;
final Uri uri;
int modeFlags = 0;
int globalModeFlags = 0;
final HashSet<UriPermissionOwner> readOwners = new HashSet<UriPermissionOwner>();
final HashSet<UriPermissionOwner> writeOwners = new HashSet<UriPermissionOwner>();
String stringName;
UriPermission(int _uid, Uri _uri) {
uid = _uid;
uri = _uri;
}
void clearModes(int modeFlags) {
if ((modeFlags&Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) {
globalModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION;
modeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION;
if (readOwners.size() > 0) {
for (UriPermissionOwner r : readOwners) {
r.removeReadPermission(this);
}
readOwners.clear();
}
}
if ((modeFlags&Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) {
globalModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION;
modeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION;
if (readOwners.size() > 0) {
for (UriPermissionOwner r : writeOwners) {
r.removeWritePermission(this);
}
readOwners.clear();
}
}
}
public String toString() {
if (stringName != null) {
return stringName;
}
StringBuilder sb = new StringBuilder(128);
sb.append("UriPermission{");
sb.append(Integer.toHexString(System.identityHashCode(this)));
sb.append(' ');
sb.append(uri);
sb.append('}');
return stringName = sb.toString();
}
void dump(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("modeFlags=0x");
pw.print(Integer.toHexString(modeFlags));
pw.print(" uid="); pw.print(uid);
pw.print(" globalModeFlags=0x");
pw.println(Integer.toHexString(globalModeFlags));
if (readOwners.size() != 0) {
pw.print(prefix); pw.println("readOwners:");
for (UriPermissionOwner owner : readOwners) {
pw.print(prefix); pw.print(" * "); pw.println(owner);
}
}
if (writeOwners.size() != 0) {
pw.print(prefix); pw.println("writeOwners:");
for (UriPermissionOwner owner : writeOwners) {
pw.print(prefix); pw.print(" * "); pw.println(owner);
}
}
}
}
|