Ido Ofir | 6f48244 | 2014-05-09 14:47:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.settings; |
| 18 | |
| 19 | import android.content.ComponentName; |
| 20 | import android.content.pm.PackageManager; |
| 21 | import android.content.pm.ResolveInfo; |
| 22 | import android.content.res.Resources; |
| 23 | import android.content.res.TypedArray; |
| 24 | import android.content.res.XmlResourceParser; |
| 25 | import android.service.trust.TrustAgentService; |
| 26 | import android.util.AttributeSet; |
| 27 | import android.util.Slog; |
| 28 | import android.util.Xml; |
| 29 | |
| 30 | import org.xmlpull.v1.XmlPullParser; |
| 31 | import org.xmlpull.v1.XmlPullParserException; |
| 32 | |
| 33 | import java.io.IOException; |
| 34 | |
Sudheer Shanka | ec1052d | 2016-02-03 00:24:52 +0000 | [diff] [blame] | 35 | import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; |
| 36 | |
Zachary Iqbal | ccae73f | 2017-01-17 14:55:49 -0800 | [diff] [blame] | 37 | // TODO(b/34461256): Refactor TrustAgentUtils into TrustAgentManager. |
Ido Ofir | 6f48244 | 2014-05-09 14:47:15 -0700 | [diff] [blame] | 38 | public class TrustAgentUtils { |
| 39 | static final String TAG = "TrustAgentUtils"; |
| 40 | |
| 41 | private static final String TRUST_AGENT_META_DATA = TrustAgentService.TRUST_AGENT_META_DATA; |
Ido Ofir | 6f48244 | 2014-05-09 14:47:15 -0700 | [diff] [blame] | 42 | |
| 43 | public static class TrustAgentComponentInfo { |
| 44 | ComponentName componentName; |
| 45 | String title; |
| 46 | String summary; |
Sudheer Shanka | ec1052d | 2016-02-03 00:24:52 +0000 | [diff] [blame] | 47 | EnforcedAdmin admin = null; |
Ido Ofir | 6f48244 | 2014-05-09 14:47:15 -0700 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | public static ComponentName getComponentName(ResolveInfo resolveInfo) { |
| 51 | if (resolveInfo == null || resolveInfo.serviceInfo == null) return null; |
| 52 | return new ComponentName(resolveInfo.serviceInfo.packageName, resolveInfo.serviceInfo.name); |
| 53 | } |
| 54 | |
| 55 | public static TrustAgentComponentInfo getSettingsComponent( |
| 56 | PackageManager pm, ResolveInfo resolveInfo) { |
| 57 | if (resolveInfo == null || resolveInfo.serviceInfo == null |
| 58 | || resolveInfo.serviceInfo.metaData == null) return null; |
| 59 | String cn = null; |
| 60 | TrustAgentComponentInfo trustAgentComponentInfo = new TrustAgentComponentInfo(); |
| 61 | XmlResourceParser parser = null; |
| 62 | Exception caughtException = null; |
| 63 | try { |
| 64 | parser = resolveInfo.serviceInfo.loadXmlMetaData(pm, TRUST_AGENT_META_DATA); |
| 65 | if (parser == null) { |
| 66 | Slog.w(TAG, "Can't find " + TRUST_AGENT_META_DATA + " meta-data"); |
| 67 | return null; |
| 68 | } |
| 69 | Resources res = pm.getResourcesForApplication(resolveInfo.serviceInfo.applicationInfo); |
| 70 | AttributeSet attrs = Xml.asAttributeSet(parser); |
| 71 | int type; |
| 72 | while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| 73 | && type != XmlPullParser.START_TAG) { |
| 74 | } |
| 75 | String nodeName = parser.getName(); |
| 76 | if (!"trust-agent".equals(nodeName)) { |
| 77 | Slog.w(TAG, "Meta-data does not start with trust-agent tag"); |
| 78 | return null; |
| 79 | } |
| 80 | TypedArray sa = |
| 81 | res.obtainAttributes(attrs, com.android.internal.R.styleable.TrustAgent); |
| 82 | trustAgentComponentInfo.summary = |
| 83 | sa.getString(com.android.internal.R.styleable.TrustAgent_summary); |
| 84 | trustAgentComponentInfo.title = |
| 85 | sa.getString(com.android.internal.R.styleable.TrustAgent_title); |
| 86 | cn = sa.getString(com.android.internal.R.styleable.TrustAgent_settingsActivity); |
| 87 | sa.recycle(); |
| 88 | } catch (PackageManager.NameNotFoundException e) { |
| 89 | caughtException = e; |
| 90 | } catch (IOException e) { |
| 91 | caughtException = e; |
| 92 | } catch (XmlPullParserException e) { |
| 93 | caughtException = e; |
| 94 | } finally { |
| 95 | if (parser != null) parser.close(); |
| 96 | } |
| 97 | if (caughtException != null) { |
| 98 | Slog.w(TAG, "Error parsing : " + resolveInfo.serviceInfo.packageName, caughtException); |
| 99 | return null; |
| 100 | } |
| 101 | if (cn != null && cn.indexOf('/') < 0) { |
| 102 | cn = resolveInfo.serviceInfo.packageName + "/" + cn; |
| 103 | } |
| 104 | trustAgentComponentInfo.componentName = (cn == null) ? null : ComponentName.unflattenFromString(cn); |
| 105 | return trustAgentComponentInfo; |
| 106 | } |
| 107 | } |