keychain/ot/OTPreloadOctagonKeysOperation.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
  24 #if OCTAGON
  25
  26 #import <utilities/debugging.h>
  27
  28 #import <SecurityFoundation/SecurityFoundation.h>
  29 #import "keychain/ot/OTPreloadOctagonKeysOperation.h"
  30 #import "keychain/ot/OTClientStateMachine.h"
  31 #import "keychain/ot/OTCuttlefishContext.h"
  32 #import "keychain/ot/OTFetchCKKSKeysOperation.h"
  33 #import "keychain/ot/OTDefines.h"
  34 #import "keychain/ot/OTConstants.h"
  35 #import "keychain/ot/OctagonCKKSPeerAdapter.h"
  36 #import "utilities/debugging.h"
  37 #import <Security/SecKey.h>
  38 #import <Security/SecKeyPriv.h>
  39
  40 #import "keychain/TrustedPeersHelper/TrustedPeersHelperProtocol.h"
  41 #import "keychain/ot/ObjCImprovements.h"
  42 #import "keychain/securityd/SOSCloudCircleServer.h"
  43
  44 @interface OTPreloadOctagonKeysOperation ()
  45 @property OTOperationDependencies* deps;
  46
  47 @property NSOperation* finishOp;
  48 @end
  49
  50 @implementation OTPreloadOctagonKeysOperation
  51 @synthesize intendedState = _intendedState;
  52
  53 - (instancetype)initWithDependencies:(OTOperationDependencies*)dependencies
  54                        intendedState:(OctagonState*)intendedState
  55                           errorState:(OctagonState*)errorState
  56 {
  57     if((self = [super init])) {
  58         _deps = dependencies;
  59         _intendedState = intendedState;
  60         _nextState = errorState;
  61     }
  62     return self;
  63 }
  64
  65 - (void)groupStart
  66 {
  67     secnotice("octagon-preload-keys", "Beginning operation that preloads the SOSAccount with newly created Octagon Keys");
  68
  69     self.finishOp = [[NSOperation alloc] init];
  70     [self dependOnBeforeGroupFinished:self.finishOp];
  71
  72     if(!self.deps.sosAdapter.sosEnabled) {
  73         self.error = [NSError errorWithDomain:OctagonErrorDomain code:OTErrorSOSAdapter userInfo:@{NSLocalizedDescriptionKey : @"sos adapter not enabled"}];
  74         [self runBeforeGroupFinished:self.finishOp];
  75         return;
  76     }
  77
  78     NSError* fetchSelfPeersError = nil;
  79     CKKSSelves *selfPeers = [self.deps.octagonAdapter fetchSelfPeers:&fetchSelfPeersError];
  80     if((!selfPeers) || fetchSelfPeersError) {
  81         secnotice("octagon-preload-keys", "failed to retrieve self peers: %@", fetchSelfPeersError);
  82         self.error = fetchSelfPeersError;
  83         [self runBeforeGroupFinished:self.finishOp];
  84         return;
  85     }
  86
  87     id<CKKSSelfPeer> currentSelfPeer = selfPeers.currentSelf;
  88     if(currentSelfPeer == nil) {
  89         secnotice("octagon-preload-keys", "failed to retrieve current self");
  90         self.error = [NSError errorWithDomain:OctagonErrorDomain code:OTErrorOctagonAdapter userInfo: @{ NSLocalizedDescriptionKey : @"failed to retrieve current self"}];
  91         [self runBeforeGroupFinished:self.finishOp];
  92         return;
  93     }
  94
  95     NSError* updateError = nil;
  96     BOOL ret = [self.deps.sosAdapter preloadOctagonKeySetOnAccount:currentSelfPeer error:&updateError];
  97     if(!ret) {
  98         self.error = updateError;
  99         [self runBeforeGroupFinished:self.finishOp];
 100         return;
 101     }
 102
 103     self.nextState = self.intendedState;
 104     [self runBeforeGroupFinished:self.finishOp];
 105 }
 106
 107 @end
 108
 109 #endif // OCTAGON