14efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver/* 24efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * Copyright (C) 2013 The Android Open Source Project 34efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * 44efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * Licensed under the Apache License, Version 2.0 (the "License"); 54efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * you may not use this file except in compliance with the License. 64efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * You may obtain a copy of the License at 74efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * 84efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * http://www.apache.org/licenses/LICENSE-2.0 94efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * 104efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * Unless required by applicable law or agreed to in writing, software 114efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * distributed under the License is distributed on an "AS IS" BASIS, 124efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 134efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * See the License for the specific language governing permissions and 144efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver * limitations under the License. 154efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver */ 164efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 174efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverpackage com.android.server.firewall; 184efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 19f5323fee2a7deaf264ed10fbe3d9c69055987e55Ben Gruverimport android.content.ComponentName; 204efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverimport android.content.Intent; 214efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverimport com.android.internal.util.XmlUtils; 224efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverimport org.xmlpull.v1.XmlPullParser; 234efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverimport org.xmlpull.v1.XmlPullParserException; 244efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 254efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverimport java.io.IOException; 264efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 274efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruverclass NotFilter implements Filter { 284efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver private final Filter mChild; 294efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 304efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver private NotFilter(Filter child) { 314efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver mChild = child; 324efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } 334efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 344efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver @Override 35f5323fee2a7deaf264ed10fbe3d9c69055987e55Ben Gruver public boolean matches(IntentFirewall ifw, ComponentName resolvedComponent, Intent intent, 3649660c7c24f24c3394233e3bbf94c96281e8c408Ben Gruver int callerUid, int callerPid, String resolvedType, int receivingUid) { 37f5323fee2a7deaf264ed10fbe3d9c69055987e55Ben Gruver return !mChild.matches(ifw, resolvedComponent, intent, callerUid, callerPid, resolvedType, 3849660c7c24f24c3394233e3bbf94c96281e8c408Ben Gruver receivingUid); 394efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } 404efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver 414efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver public static final FilterFactory FACTORY = new FilterFactory("not") { 424efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver @Override 434efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver public Filter newFilter(XmlPullParser parser) 444efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver throws IOException, XmlPullParserException { 454efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver Filter child = null; 464efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver int outerDepth = parser.getDepth(); 474efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver while (XmlUtils.nextElementWithin(parser, outerDepth)) { 484efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver Filter filter = IntentFirewall.parseFilter(parser); 494efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver if (child == null) { 504efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver child = filter; 514efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } else { 524efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver throw new XmlPullParserException( 534efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver "<not> tag can only contain a single child filter.", parser, null); 544efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } 554efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } 564efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver return new NotFilter(child); 574efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver } 584efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver }; 594efe9403afb0ba3b83fa647eb82e4f90d29f131bBen Gruver} 60