keychain/otpaird/OTPairingPacketContext.m

   1 #import <TargetConditionals.h>
   2 #import <Foundation/Foundation.h>
   3 #import <IDS/IDS.h>
   4
   5 #import "keychain/categories/NSError+UsefulConstructors.h"
   6
   7 #import "OTPairingPacketContext.h"
   8 #import "OTPairingConstants.h"
   9
  10 @interface OTPairingPacketContext ()
  11 @property (readwrite) NSDictionary *message;
  12 @property (readwrite) NSString *fromID;
  13 @property (readwrite) IDSMessageContext *context;
  14 @end
  15
  16 @implementation OTPairingPacketContext
  17
  18 @synthesize message = _message;
  19 @synthesize fromID = _fromID;
  20 @synthesize context = _context;
  21 @synthesize error = _error;
  22
  23 - (instancetype)initWithMessage:(NSDictionary *)message fromID:(NSString *)fromID context:(IDSMessageContext *)context
  24 {
  25     if ((self = [super init])) {
  26         self.message = message;
  27         self.fromID = fromID;
  28         self.context = context;
  29     }
  30     return self;
  31 }
  32
  33 - (enum OTPairingIDSMessageType)messageType
  34 {
  35     NSNumber *typeNum;
  36     enum OTPairingIDSMessageType type;
  37
  38     typeNum = self.message[OTPairingIDSKeyMessageType];
  39     if (typeNum != nil) {
  40         type = [typeNum intValue];
  41     } else {
  42         // From older internal builds; remove soon
  43         if (self.packetData != nil) {
  44             type = OTPairingIDSMessageTypePacket;
  45         } else {
  46             type = OTPairingIDSMessageTypeError;
  47         }
  48     }
  49
  50     return type;
  51 }
  52
  53 - (NSString *)sessionIdentifier
  54 {
  55     return self.message[OTPairingIDSKeySession];
  56 }
  57
  58 - (NSData *)packetData
  59 {
  60     return self.message[OTPairingIDSKeyPacket];
  61 }
  62
  63 - (NSError *)error
  64 {
  65     if (self.messageType != OTPairingIDSMessageTypeError) {
  66         return nil;
  67     }
  68
  69     if (!self->_error) {
  70         NSString *errorString = self.message[OTPairingIDSKeyErrorDescription];
  71         self->_error = [NSError errorWithDomain:OTPairingErrorDomain code:OTPairingErrorTypeRemote description:errorString];
  72     }
  73
  74     return self->_error;
  75 }
  76
  77 - (NSString *)incomingResponseIdentifier
  78 {
  79     return self.context.incomingResponseIdentifier;
  80 }
  81
  82 - (NSString *)outgoingResponseIdentifier
  83 {
  84     return self.context.outgoingResponseIdentifier;
  85 }
  86
  87 @end