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      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 android.content.pm;
     18 
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 import android.os.PatternMatcher;
     22 import android.util.Printer;
     23 
     24 /**
     25  * Holds information about a specific
     26  * {@link android.content.ContentProvider content provider}. This is returned by
     27  * {@link android.content.pm.PackageManager#resolveContentProvider(java.lang.String, int)
     28  * PackageManager.resolveContentProvider()}.
     29  */
     30 public final class ProviderInfo extends ComponentInfo
     31         implements Parcelable {
     32 
     33     /** The name provider is published under content:// */
     34     public String authority = null;
     35 
     36     /** Optional permission required for read-only access this content
     37      * provider. */
     38     public String readPermission = null;
     39 
     40     /** Optional permission required for read/write access this content
     41      * provider. */
     42     public String writePermission = null;
     43 
     44     /** If true, additional permissions to specific Uris in this content
     45      * provider can be granted, as per the
     46      * {@link android.R.styleable#AndroidManifestProvider_grantUriPermissions
     47      * grantUriPermissions} attribute.
     48      */
     49     public boolean grantUriPermissions = false;
     50 
     51     /**
     52      * If non-null, these are the patterns that are allowed for granting URI
     53      * permissions.  Any URI that does not match one of these patterns will not
     54      * allowed to be granted.  If null, all URIs are allowed.  The
     55      * {@link PackageManager#GET_URI_PERMISSION_PATTERNS
     56      * PackageManager.GET_URI_PERMISSION_PATTERNS} flag must be specified for
     57      * this field to be filled in.
     58      */
     59     public PatternMatcher[] uriPermissionPatterns = null;
     60 
     61     /**
     62      * If non-null, these are path-specific permissions that are allowed for
     63      * accessing the provider.  Any permissions listed here will allow a
     64      * holding client to access the provider, and the provider will check
     65      * the URI it provides when making calls against the patterns here.
     66      */
     67     public PathPermission[] pathPermissions = null;
     68 
     69     /** If true, this content provider allows multiple instances of itself
     70      *  to run in different process.  If false, a single instances is always
     71      *  run in {@link #processName}. */
     72     public boolean multiprocess = false;
     73 
     74     /** Used to control initialization order of single-process providers
     75      *  running in the same process.  Higher goes first. */
     76     public int initOrder = 0;
     77 
     78     /**
     79      * Bit in {@link #flags}: If set, a single instance of the provider will
     80      * run for all users on the device.  Set from the
     81      * {@link android.R.attr#singleUser} attribute.
     82      */
     83     public static final int FLAG_SINGLE_USER = 0x40000000;
     84 
     85     /**
     86      * Options that have been set in the provider declaration in the
     87      * manifest.
     88      * These include: {@link #FLAG_SINGLE_USER}.
     89      */
     90     public int flags = 0;
     91 
     92     /**
     93      * Whether or not this provider is syncable.
     94      * @deprecated This flag is now being ignored. The current way to make a provider
     95      * syncable is to provide a SyncAdapter service for a given provider/account type.
     96      */
     97     @Deprecated
     98     public boolean isSyncable = false;
     99 
    100     public ProviderInfo() {
    101     }
    102 
    103     public ProviderInfo(ProviderInfo orig) {
    104         super(orig);
    105         authority = orig.authority;
    106         readPermission = orig.readPermission;
    107         writePermission = orig.writePermission;
    108         grantUriPermissions = orig.grantUriPermissions;
    109         uriPermissionPatterns = orig.uriPermissionPatterns;
    110         pathPermissions = orig.pathPermissions;
    111         multiprocess = orig.multiprocess;
    112         initOrder = orig.initOrder;
    113         flags = orig.flags;
    114         isSyncable = orig.isSyncable;
    115     }
    116 
    117     public void dump(Printer pw, String prefix) {
    118         super.dumpFront(pw, prefix);
    119         pw.println(prefix + "authority=" + authority);
    120         pw.println(prefix + "flags=0x" + Integer.toHexString(flags));
    121     }
    122 
    123     public int describeContents() {
    124         return 0;
    125     }
    126 
    127     @Override public void writeToParcel(Parcel out, int parcelableFlags) {
    128         super.writeToParcel(out, parcelableFlags);
    129         out.writeString(authority);
    130         out.writeString(readPermission);
    131         out.writeString(writePermission);
    132         out.writeInt(grantUriPermissions ? 1 : 0);
    133         out.writeTypedArray(uriPermissionPatterns, parcelableFlags);
    134         out.writeTypedArray(pathPermissions, parcelableFlags);
    135         out.writeInt(multiprocess ? 1 : 0);
    136         out.writeInt(initOrder);
    137         out.writeInt(flags);
    138         out.writeInt(isSyncable ? 1 : 0);
    139     }
    140 
    141     public static final Parcelable.Creator<ProviderInfo> CREATOR
    142             = new Parcelable.Creator<ProviderInfo>() {
    143         public ProviderInfo createFromParcel(Parcel in) {
    144             return new ProviderInfo(in);
    145         }
    146 
    147         public ProviderInfo[] newArray(int size) {
    148             return new ProviderInfo[size];
    149         }
    150     };
    151 
    152     public String toString() {
    153         return "ContentProviderInfo{name=" + authority + " className=" + name + "}";
    154     }
    155 
    156     private ProviderInfo(Parcel in) {
    157         super(in);
    158         authority = in.readString();
    159         readPermission = in.readString();
    160         writePermission = in.readString();
    161         grantUriPermissions = in.readInt() != 0;
    162         uriPermissionPatterns = in.createTypedArray(PatternMatcher.CREATOR);
    163         pathPermissions = in.createTypedArray(PathPermission.CREATOR);
    164         multiprocess = in.readInt() != 0;
    165         initOrder = in.readInt();
    166         flags = in.readInt();
    167         isSyncable = in.readInt() != 0;
    168     }
    169 }
    170