1 /*
2  * Copyright (C) 2013 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 android.content;
18 
19 import android.net.Uri;
20 import android.os.Parcel;
21 import android.os.Parcelable;
22 
23 /**
24  * Description of a single Uri permission grant. This grants may have been
25  * created via {@link Intent#FLAG_GRANT_READ_URI_PERMISSION}, etc when sending
26  * an {@link Intent}, or explicitly through
27  * {@link Context#grantUriPermission(String, android.net.Uri, int)}.
28  *
29  * @see ContentResolver#getPersistedUriPermissions()
30  */
31 public final class UriPermission implements Parcelable {
32     private final Uri mUri;
33     private final int mModeFlags;
34     private final long mPersistedTime;
35 
36     /**
37      * Value returned when a permission has not been persisted.
38      */
39     public static final long INVALID_TIME = Long.MIN_VALUE;
40 
41     /** {@hide} */
UriPermission(Uri uri, int modeFlags, long persistedTime)42     public UriPermission(Uri uri, int modeFlags, long persistedTime) {
43         mUri = uri;
44         mModeFlags = modeFlags;
45         mPersistedTime = persistedTime;
46     }
47 
48     /** {@hide} */
UriPermission(Parcel in)49     public UriPermission(Parcel in) {
50         mUri = in.readParcelable(null);
51         mModeFlags = in.readInt();
52         mPersistedTime = in.readLong();
53     }
54 
55     /**
56      * Return the Uri this permission pertains to.
57      */
getUri()58     public Uri getUri() {
59         return mUri;
60     }
61 
62     /**
63      * Returns if this permission offers read access.
64      */
isReadPermission()65     public boolean isReadPermission() {
66         return (mModeFlags & Intent.FLAG_GRANT_READ_URI_PERMISSION) != 0;
67     }
68 
69     /**
70      * Returns if this permission offers write access.
71      */
isWritePermission()72     public boolean isWritePermission() {
73         return (mModeFlags & Intent.FLAG_GRANT_WRITE_URI_PERMISSION) != 0;
74     }
75 
76     /**
77      * Return the time when this permission was first persisted, in milliseconds
78      * since January 1, 1970 00:00:00.0 UTC. Returns {@link #INVALID_TIME} if
79      * not persisted.
80      *
81      * @see ContentResolver#takePersistableUriPermission(Uri, int)
82      * @see System#currentTimeMillis()
83      */
getPersistedTime()84     public long getPersistedTime() {
85         return mPersistedTime;
86     }
87 
88     @Override
toString()89     public String toString() {
90         return "UriPermission {uri=" + mUri + ", modeFlags=" + mModeFlags + ", persistedTime="
91                 + mPersistedTime + "}";
92     }
93 
94     @Override
describeContents()95     public int describeContents() {
96         return 0;
97     }
98 
99     @Override
writeToParcel(Parcel dest, int flags)100     public void writeToParcel(Parcel dest, int flags) {
101         dest.writeParcelable(mUri, flags);
102         dest.writeInt(mModeFlags);
103         dest.writeLong(mPersistedTime);
104     }
105 
106     public static final Creator<UriPermission> CREATOR = new Creator<UriPermission>() {
107         @Override
108         public UriPermission createFromParcel(Parcel source) {
109             return new UriPermission(source);
110         }
111 
112         @Override
113         public UriPermission[] newArray(int size) {
114             return new UriPermission[size];
115         }
116     };
117 }
118