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Commit 483a6bbf authored by Dianne Hackborn's avatar Dianne Hackborn
Browse files

Add version identifier to app ops. 

All old versions drop their modes except for the notification op
(which is the only one there is currently a user-visible control for).

Change-Id: I9e09cebe63e9ea81f2adc01aef7d1a5a59f57a56
parent 38d4cfd4

services/java/com/android/server/AppOpsService.java

+16 −5
Original line number Diff line number Diff line
@@ -63,6 +63,8 @@ public class AppOpsService extends IAppOpsService.Stub { 
    // Write at most every 30 minutes.

    static final long WRITE_DELAY = DEBUG ? 1000 : 30*60*1000;



    static final int CURRENT_VERSION = 1;



    Context mContext;

    final AtomicFile mFile;

    final Handler mHandler;
@@ -631,6 +633,9 @@ public class AppOpsService extends IAppOpsService.Stub { 
                        throw new IllegalStateException("no start tag found");

                    }



                    String versStr = parser.getAttributeValue(null, "vers");

                    int vers = versStr != null ? Integer.parseInt(versStr) : 0;



                    int outerDepth = parser.getDepth();

                    while ((type = parser.next()) != XmlPullParser.END_DOCUMENT

                            && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
@@ -640,7 +645,7 @@ public class AppOpsService extends IAppOpsService.Stub { 


                        String tagName = parser.getName();

                        if (tagName.equals("pkg")) {

                            readPackage(parser);

                            readPackage(parser, vers);

                        } else {

                            Slog.w(TAG, "Unknown element under <app-ops>: "

                                    + parser.getName());
@@ -673,7 +678,7 @@ public class AppOpsService extends IAppOpsService.Stub { 
        }

    }



    void readPackage(XmlPullParser parser) throws NumberFormatException,

    void readPackage(XmlPullParser parser, int vers) throws NumberFormatException,

            XmlPullParserException, IOException {

        String pkgName = parser.getAttributeValue(null, "n");

        int outerDepth = parser.getDepth();
@@ -686,7 +691,7 @@ public class AppOpsService extends IAppOpsService.Stub { 


            String tagName = parser.getName();

            if (tagName.equals("uid")) {

                readUid(parser, pkgName);

                readUid(parser, vers, pkgName);

            } else {

                Slog.w(TAG, "Unknown element under <pkg>: "

                        + parser.getName());
@@ -695,7 +700,7 @@ public class AppOpsService extends IAppOpsService.Stub { 
        }

    }



    void readUid(XmlPullParser parser, String pkgName) throws NumberFormatException,

    void readUid(XmlPullParser parser, int vers, String pkgName) throws NumberFormatException,

            XmlPullParserException, IOException {

        int uid = Integer.parseInt(parser.getAttributeValue(null, "n"));

        int outerDepth = parser.getDepth();
@@ -711,8 +716,13 @@ public class AppOpsService extends IAppOpsService.Stub { 
                Op op = new Op(Integer.parseInt(parser.getAttributeValue(null, "n")));

                String mode = parser.getAttributeValue(null, "m");

                if (mode != null) {

                    if (vers < CURRENT_VERSION && op.op != AppOpsManager.OP_POST_NOTIFICATION) {

                        Slog.w(TAG, "AppOps vers " + vers + ": drop mode from "

                                + pkgName + "/" + uid + " op " + op.op);

                    } else {

                        op.mode = Integer.parseInt(mode);

                    }

                }

                String time = parser.getAttributeValue(null, "t");

                if (time != null) {

                    op.time = Long.parseLong(time);
@@ -761,6 +771,7 @@ public class AppOpsService extends IAppOpsService.Stub { 
                out.setOutput(stream, "utf-8");

                out.startDocument(null, true);

                out.startTag(null, "app-ops");

                out.attribute(null, "vers", Integer.toString(CURRENT_VERSION));



                if (allOps != null) {

                    String lastPkg = null;