The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.am; |
| 18 | |
| 19 | import android.content.Intent; |
Jeff Sharkey | 6906220 | 2017-06-26 19:34:04 -0600 | [diff] [blame] | 20 | import android.os.Binder; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 21 | import android.os.UserHandle; |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 22 | import android.util.ArraySet; |
Jeff Sharkey | d16b125 | 2016-09-01 11:07:23 -0600 | [diff] [blame] | 23 | import android.util.Log; |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 24 | import android.util.Slog; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 25 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 26 | import com.android.server.am.ActivityManagerService.GrantUri; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 27 | import com.google.android.collect.Sets; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 28 | |
| 29 | import java.io.PrintWriter; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 30 | import java.util.Comparator; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 31 | |
Dianne Hackborn | 7e26964 | 2010-08-25 19:50:20 -0700 | [diff] [blame] | 32 | /** |
| 33 | * Description of a permission granted to an app to access a particular URI. |
| 34 | * |
| 35 | * CTS tests for this functionality can be run with "runtest cts-appsecurity". |
| 36 | * |
Dianne Hackborn | cca1f0e | 2010-09-26 18:34:53 -0700 | [diff] [blame] | 37 | * Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert/ |
| 38 | * src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java |
Dianne Hackborn | 7e26964 | 2010-08-25 19:50:20 -0700 | [diff] [blame] | 39 | */ |
Dianne Hackborn | be4e6aa | 2013-06-07 13:25:29 -0700 | [diff] [blame] | 40 | final class UriPermission { |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 41 | private static final String TAG = "UriPermission"; |
| 42 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 43 | public static final int STRENGTH_NONE = 0; |
| 44 | public static final int STRENGTH_OWNED = 1; |
| 45 | public static final int STRENGTH_GLOBAL = 2; |
| 46 | public static final int STRENGTH_PERSISTABLE = 3; |
| 47 | |
Nicolas Prevot | d85fc72 | 2014-04-16 19:52:08 +0100 | [diff] [blame] | 48 | final int targetUserId; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 49 | final String sourcePkg; |
| 50 | final String targetPkg; |
| 51 | |
| 52 | /** Cached UID of {@link #targetPkg}; should not be persisted */ |
| 53 | final int targetUid; |
| 54 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 55 | final GrantUri uri; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 56 | |
| 57 | /** |
| 58 | * Allowed modes. All permission enforcement should use this field. Must |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 59 | * always be a combination of {@link #ownedModeFlags}, |
| 60 | * {@link #globalModeFlags}, {@link #persistableModeFlags}, and |
| 61 | * {@link #persistedModeFlags}. Mutations <em>must</em> only be performed by |
| 62 | * the owning class. |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 63 | */ |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 64 | int modeFlags = 0; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 65 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 66 | /** Allowed modes with active owner. */ |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 67 | int ownedModeFlags = 0; |
| 68 | /** Allowed modes without explicit owner. */ |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 69 | int globalModeFlags = 0; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 70 | /** Allowed modes that have been offered for possible persisting. */ |
| 71 | int persistableModeFlags = 0; |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 72 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 73 | /** Allowed modes that should be persisted across device boots. */ |
| 74 | int persistedModeFlags = 0; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 75 | |
| 76 | /** |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 77 | * Timestamp when {@link #persistedModeFlags} was first defined in |
| 78 | * {@link System#currentTimeMillis()} time base. |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 79 | */ |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 80 | long persistedCreateTime = INVALID_TIME; |
| 81 | |
| 82 | private static final long INVALID_TIME = Long.MIN_VALUE; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 83 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 84 | private ArraySet<UriPermissionOwner> mReadOwners; |
| 85 | private ArraySet<UriPermissionOwner> mWriteOwners; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 86 | |
| 87 | private String stringName; |
| 88 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 89 | UriPermission(String sourcePkg, String targetPkg, int targetUid, GrantUri uri) { |
Nicolas Prevot | d85fc72 | 2014-04-16 19:52:08 +0100 | [diff] [blame] | 90 | this.targetUserId = UserHandle.getUserId(targetUid); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 91 | this.sourcePkg = sourcePkg; |
| 92 | this.targetPkg = targetPkg; |
| 93 | this.targetUid = targetUid; |
| 94 | this.uri = uri; |
| 95 | } |
| 96 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 97 | private void updateModeFlags() { |
Jeff Sharkey | d16b125 | 2016-09-01 11:07:23 -0600 | [diff] [blame] | 98 | final int oldModeFlags = modeFlags; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 99 | modeFlags = ownedModeFlags | globalModeFlags | persistableModeFlags | persistedModeFlags; |
Jeff Sharkey | d16b125 | 2016-09-01 11:07:23 -0600 | [diff] [blame] | 100 | |
| 101 | if (Log.isLoggable(TAG, Log.VERBOSE) && (modeFlags != oldModeFlags)) { |
| 102 | Slog.d(TAG, |
| 103 | "Permission for " + targetPkg + " to " + uri + " is changing from 0x" |
| 104 | + Integer.toHexString(oldModeFlags) + " to 0x" |
Jeff Sharkey | 6906220 | 2017-06-26 19:34:04 -0600 | [diff] [blame] | 105 | + Integer.toHexString(modeFlags) + " via calling UID " |
| 106 | + Binder.getCallingUid() + " PID " + Binder.getCallingPid(), |
Jeff Sharkey | d16b125 | 2016-09-01 11:07:23 -0600 | [diff] [blame] | 107 | new Throwable()); |
| 108 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 109 | } |
| 110 | |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 111 | /** |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 112 | * Initialize persisted modes as read from file. This doesn't issue any |
| 113 | * global or owner grants. |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 114 | */ |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 115 | void initPersistedModes(int modeFlags, long createdTime) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 116 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 117 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| 118 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 119 | persistableModeFlags = modeFlags; |
| 120 | persistedModeFlags = modeFlags; |
| 121 | persistedCreateTime = createdTime; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 122 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 123 | updateModeFlags(); |
| 124 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 125 | |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 126 | void grantModes(int modeFlags, UriPermissionOwner owner) { |
| 127 | final boolean persistable = (modeFlags & Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION) != 0; |
| 128 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 129 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| 130 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 131 | if (persistable) { |
| 132 | persistableModeFlags |= modeFlags; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | if (owner == null) { |
| 136 | globalModeFlags |= modeFlags; |
| 137 | } else { |
| 138 | if ((modeFlags & Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { |
| 139 | addReadOwner(owner); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 140 | } |
| 141 | if ((modeFlags & Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { |
| 142 | addWriteOwner(owner); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 143 | } |
| 144 | } |
| 145 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 146 | updateModeFlags(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 147 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 148 | |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 149 | /** |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 150 | * @return if mode changes should trigger persisting. |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 151 | */ |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 152 | boolean takePersistableModes(int modeFlags) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 153 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 154 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| 155 | |
Jeff Sharkey | 582f712 | 2013-10-11 17:46:47 -0700 | [diff] [blame] | 156 | if ((modeFlags & persistableModeFlags) != modeFlags) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 157 | Slog.w(TAG, "Requested flags 0x" |
Jeff Sharkey | 582f712 | 2013-10-11 17:46:47 -0700 | [diff] [blame] | 158 | + Integer.toHexString(modeFlags) + ", but only 0x" |
| 159 | + Integer.toHexString(persistableModeFlags) + " are allowed"); |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 160 | return false; |
Jeff Sharkey | 582f712 | 2013-10-11 17:46:47 -0700 | [diff] [blame] | 161 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 162 | |
| 163 | final int before = persistedModeFlags; |
| 164 | persistedModeFlags |= (persistableModeFlags & modeFlags); |
| 165 | |
| 166 | if (persistedModeFlags != 0) { |
| 167 | persistedCreateTime = System.currentTimeMillis(); |
| 168 | } |
| 169 | |
| 170 | updateModeFlags(); |
| 171 | return persistedModeFlags != before; |
| 172 | } |
| 173 | |
| 174 | boolean releasePersistableModes(int modeFlags) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 175 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 176 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| 177 | |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 178 | final int before = persistedModeFlags; |
| 179 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 180 | persistableModeFlags &= ~modeFlags; |
| 181 | persistedModeFlags &= ~modeFlags; |
| 182 | |
| 183 | if (persistedModeFlags == 0) { |
| 184 | persistedCreateTime = INVALID_TIME; |
| 185 | } |
| 186 | |
| 187 | updateModeFlags(); |
| 188 | return persistedModeFlags != before; |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * @return if mode changes should trigger persisting. |
| 193 | */ |
Jeff Sharkey | 29b2516 | 2014-09-19 09:14:34 -0700 | [diff] [blame] | 194 | boolean revokeModes(int modeFlags, boolean includingOwners) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 195 | final boolean persistable = (modeFlags & Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION) != 0; |
| 196 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 197 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| 198 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 199 | final int before = persistedModeFlags; |
| 200 | |
| 201 | if ((modeFlags & Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0) { |
| 202 | if (persistable) { |
| 203 | persistableModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 204 | persistedModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
| 205 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 206 | globalModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
Jeff Sharkey | 29b2516 | 2014-09-19 09:14:34 -0700 | [diff] [blame] | 207 | if (mReadOwners != null && includingOwners) { |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 208 | ownedModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 209 | for (UriPermissionOwner r : mReadOwners) { |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 210 | r.removeReadPermission(this); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 211 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 212 | mReadOwners = null; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 213 | } |
| 214 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 215 | if ((modeFlags & Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0) { |
| 216 | if (persistable) { |
| 217 | persistableModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 218 | persistedModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
| 219 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 220 | globalModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
Jeff Sharkey | 29b2516 | 2014-09-19 09:14:34 -0700 | [diff] [blame] | 221 | if (mWriteOwners != null && includingOwners) { |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 222 | ownedModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 223 | for (UriPermissionOwner r : mWriteOwners) { |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 224 | r.removeWritePermission(this); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 225 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 226 | mWriteOwners = null; |
| 227 | } |
| 228 | } |
| 229 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 230 | if (persistedModeFlags == 0) { |
| 231 | persistedCreateTime = INVALID_TIME; |
| 232 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 233 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 234 | updateModeFlags(); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 235 | return persistedModeFlags != before; |
| 236 | } |
| 237 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 238 | /** |
| 239 | * Return strength of this permission grant for the given flags. |
| 240 | */ |
| 241 | public int getStrength(int modeFlags) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 242 | modeFlags &= (Intent.FLAG_GRANT_READ_URI_PERMISSION |
| 243 | | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 244 | if ((persistableModeFlags & modeFlags) == modeFlags) { |
| 245 | return STRENGTH_PERSISTABLE; |
| 246 | } else if ((globalModeFlags & modeFlags) == modeFlags) { |
| 247 | return STRENGTH_GLOBAL; |
| 248 | } else if ((ownedModeFlags & modeFlags) == modeFlags) { |
| 249 | return STRENGTH_OWNED; |
| 250 | } else { |
| 251 | return STRENGTH_NONE; |
| 252 | } |
| 253 | } |
| 254 | |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 255 | private void addReadOwner(UriPermissionOwner owner) { |
| 256 | if (mReadOwners == null) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 257 | mReadOwners = Sets.newArraySet(); |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 258 | ownedModeFlags |= Intent.FLAG_GRANT_READ_URI_PERMISSION; |
| 259 | updateModeFlags(); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 260 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 261 | if (mReadOwners.add(owner)) { |
| 262 | owner.addReadPermission(this); |
| 263 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Remove given read owner, updating {@Link #modeFlags} as needed. |
| 268 | */ |
| 269 | void removeReadOwner(UriPermissionOwner owner) { |
| 270 | if (!mReadOwners.remove(owner)) { |
Dianne Hackborn | 8d05172 | 2014-10-01 14:59:58 -0700 | [diff] [blame] | 271 | Slog.wtf(TAG, "Unknown read owner " + owner + " in " + this); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 272 | } |
| 273 | if (mReadOwners.size() == 0) { |
| 274 | mReadOwners = null; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 275 | ownedModeFlags &= ~Intent.FLAG_GRANT_READ_URI_PERMISSION; |
| 276 | updateModeFlags(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 277 | } |
| 278 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 279 | |
| 280 | private void addWriteOwner(UriPermissionOwner owner) { |
| 281 | if (mWriteOwners == null) { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 282 | mWriteOwners = Sets.newArraySet(); |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 283 | ownedModeFlags |= Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
| 284 | updateModeFlags(); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 285 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 286 | if (mWriteOwners.add(owner)) { |
| 287 | owner.addWritePermission(this); |
| 288 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Remove given write owner, updating {@Link #modeFlags} as needed. |
| 293 | */ |
| 294 | void removeWriteOwner(UriPermissionOwner owner) { |
| 295 | if (!mWriteOwners.remove(owner)) { |
Dianne Hackborn | 8d05172 | 2014-10-01 14:59:58 -0700 | [diff] [blame] | 296 | Slog.wtf(TAG, "Unknown write owner " + owner + " in " + this); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 297 | } |
| 298 | if (mWriteOwners.size() == 0) { |
| 299 | mWriteOwners = null; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 300 | ownedModeFlags &= ~Intent.FLAG_GRANT_WRITE_URI_PERMISSION; |
| 301 | updateModeFlags(); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 302 | } |
| 303 | } |
| 304 | |
| 305 | @Override |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 306 | public String toString() { |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 307 | if (stringName != null) { |
| 308 | return stringName; |
| 309 | } |
| 310 | StringBuilder sb = new StringBuilder(128); |
| 311 | sb.append("UriPermission{"); |
| 312 | sb.append(Integer.toHexString(System.identityHashCode(this))); |
| 313 | sb.append(' '); |
| 314 | sb.append(uri); |
| 315 | sb.append('}'); |
| 316 | return stringName = sb.toString(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | void dump(PrintWriter pw, String prefix) { |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 320 | pw.print(prefix); |
Nicolas Prevot | d85fc72 | 2014-04-16 19:52:08 +0100 | [diff] [blame] | 321 | pw.print("targetUserId=" + targetUserId); |
Jeff Sharkey | 9e0036e | 2013-04-26 16:54:55 -0700 | [diff] [blame] | 322 | pw.print(" sourcePkg=" + sourcePkg); |
| 323 | pw.println(" targetPkg=" + targetPkg); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 324 | |
| 325 | pw.print(prefix); |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 326 | pw.print("mode=0x" + Integer.toHexString(modeFlags)); |
| 327 | pw.print(" owned=0x" + Integer.toHexString(ownedModeFlags)); |
| 328 | pw.print(" global=0x" + Integer.toHexString(globalModeFlags)); |
| 329 | pw.print(" persistable=0x" + Integer.toHexString(persistableModeFlags)); |
| 330 | pw.print(" persisted=0x" + Integer.toHexString(persistedModeFlags)); |
| 331 | if (persistedCreateTime != INVALID_TIME) { |
| 332 | pw.print(" persistedCreate=" + persistedCreateTime); |
| 333 | } |
| 334 | pw.println(); |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 335 | |
| 336 | if (mReadOwners != null) { |
| 337 | pw.print(prefix); |
| 338 | pw.println("readOwners:"); |
| 339 | for (UriPermissionOwner owner : mReadOwners) { |
| 340 | pw.print(prefix); |
| 341 | pw.println(" * " + owner); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 342 | } |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 343 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 344 | if (mWriteOwners != null) { |
| 345 | pw.print(prefix); |
| 346 | pw.println("writeOwners:"); |
| 347 | for (UriPermissionOwner owner : mReadOwners) { |
| 348 | pw.print(prefix); |
| 349 | pw.println(" * " + owner); |
Dianne Hackborn | 39792d2 | 2010-08-19 18:01:52 -0700 | [diff] [blame] | 350 | } |
Dianne Hackborn | 1d442e0 | 2009-04-20 18:14:05 -0700 | [diff] [blame] | 351 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 352 | } |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 353 | |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 354 | public static class PersistedTimeComparator implements Comparator<UriPermission> { |
| 355 | @Override |
| 356 | public int compare(UriPermission lhs, UriPermission rhs) { |
| 357 | return Long.compare(lhs.persistedCreateTime, rhs.persistedCreateTime); |
| 358 | } |
| 359 | } |
| 360 | |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 361 | /** |
| 362 | * Snapshot of {@link UriPermission} with frozen |
| 363 | * {@link UriPermission#persistedModeFlags} state. |
| 364 | */ |
| 365 | public static class Snapshot { |
Nicolas Prevot | d85fc72 | 2014-04-16 19:52:08 +0100 | [diff] [blame] | 366 | final int targetUserId; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 367 | final String sourcePkg; |
| 368 | final String targetPkg; |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 369 | final GrantUri uri; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 370 | final int persistedModeFlags; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 371 | final long persistedCreateTime; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 372 | |
| 373 | private Snapshot(UriPermission perm) { |
Nicolas Prevot | d85fc72 | 2014-04-16 19:52:08 +0100 | [diff] [blame] | 374 | this.targetUserId = perm.targetUserId; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 375 | this.sourcePkg = perm.sourcePkg; |
| 376 | this.targetPkg = perm.targetPkg; |
| 377 | this.uri = perm.uri; |
| 378 | this.persistedModeFlags = perm.persistedModeFlags; |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 379 | this.persistedCreateTime = perm.persistedCreateTime; |
Jeff Sharkey | 328ebf2 | 2013-03-21 18:09:39 -0700 | [diff] [blame] | 380 | } |
| 381 | } |
| 382 | |
| 383 | public Snapshot snapshot() { |
| 384 | return new Snapshot(this); |
| 385 | } |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 386 | |
| 387 | public android.content.UriPermission buildPersistedPublicApiObject() { |
Jeff Sharkey | 846318a | 2014-04-04 12:12:41 -0700 | [diff] [blame] | 388 | return new android.content.UriPermission(uri.uri, persistedModeFlags, persistedCreateTime); |
Jeff Sharkey | e66c177 | 2013-09-20 14:30:59 -0700 | [diff] [blame] | 389 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 390 | } |