keychain/ot/OTLeaveCliqueOperation.m

   1 /*
   2  * Copyright (c) 2018 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 #if OCTAGON
  24
  25 #import "keychain/ot/OTLeaveCliqueOperation.h"
  26 #import "keychain/ot/OTOperationDependencies.h"
  27 #import "keychain/ot/ObjCImprovements.h"
  28 #import "keychain/TrustedPeersHelper/TrustedPeersHelperProtocol.h"
  29
  30 @interface OTLeaveCliqueOperation ()
  31 @property OTOperationDependencies* deps;
  32
  33 @property NSOperation* finishedOp;
  34 @end
  35
  36 @implementation OTLeaveCliqueOperation
  37 @synthesize intendedState = _intendedState;
  38 @synthesize nextState = _nextState;
  39
  40 - (instancetype)initWithDependencies:(OTOperationDependencies*)dependencies
  41                        intendedState:(OctagonState*)intendedState
  42                           errorState:(OctagonState*)errorState
  43 {
  44     if((self = [super init])) {
  45         _deps = dependencies;
  46
  47         _intendedState = intendedState;
  48         _nextState = errorState;
  49     }
  50     return self;
  51 }
  52
  53 - (void)groupStart
  54 {
  55     secnotice("octagon", "Attempting to leave clique");
  56
  57     self.finishedOp = [[NSOperation alloc] init];
  58     [self dependOnBeforeGroupFinished:self.finishedOp];
  59
  60     WEAKIFY(self);
  61     [[self.deps.cuttlefishXPC remoteObjectProxyWithErrorHandler:^(NSError * _Nonnull error) {
  62         STRONGIFY(self);
  63         secerror("octagon: Can't talk with TrustedPeersHelper: %@", error);
  64         self.error = error;
  65         [self runBeforeGroupFinished:self.finishedOp];
  66
  67     }] departByDistrustingSelfWithContainer:self.deps.containerName
  68                                     context:self.deps.contextID
  69                                      reply:^(NSError * _Nullable error) {
  70          STRONGIFY(self);
  71          if(error) {
  72              secnotice("octagon", "Unable to depart for (%@,%@): %@", self.deps.containerName, self.deps.contextID, error);
  73              self.error = error;
  74          } else {
  75              NSError* localError = nil;
  76              BOOL persisted = [self.deps.stateHolder persistNewTrustState:OTAccountMetadataClassC_TrustState_UNTRUSTED
  77                                                                     error:&localError];
  78              if(!persisted || localError) {
  79                  secerror("octagon: unable to persist clique departure: %@", localError);
  80                  self.error = localError;
  81              } else {
  82                  secnotice("octagon", "Successfully departed clique");
  83                  self.nextState = self.intendedState;
  84              }
  85          }
  86
  87          [self runBeforeGroupFinished:self.finishedOp];
  88      }];
  89 }
  90
  91 @end
  92
  93 #endif // OCTAGON