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-rw-r--r--xcode/OLMKit/OLMInboundGroupSession.h10
-rw-r--r--xcode/OLMKit/OLMInboundGroupSession.m54
2 files changed, 63 insertions, 1 deletions
diff --git a/xcode/OLMKit/OLMInboundGroupSession.h b/xcode/OLMKit/OLMInboundGroupSession.h
index ede68e3..e0cd961 100644
--- a/xcode/OLMKit/OLMInboundGroupSession.h
+++ b/xcode/OLMKit/OLMInboundGroupSession.h
@@ -20,11 +20,19 @@
@interface OLMInboundGroupSession : NSObject <OLMSerializable, NSSecureCoding>
-- (instancetype) initInboundGroupSessionWithSessionKey:(NSString*)sessionKey error:(NSError**)error;
+- (instancetype)initInboundGroupSessionWithSessionKey:(NSString*)sessionKey error:(NSError**)error;
+
+- (instancetype)initInboundGroupSessionWithImportedSession:(NSString*)sessionKey error:(NSError**)error;
- (NSString*)sessionIdentifier;
/** base64 ciphertext -> UTF-8 plaintext */
- (NSString*)decryptMessage:(NSString*)message messageIndex:(NSUInteger*)messageIndex error:(NSError**)error;
+- (NSUInteger)firstKnownIndex;
+
+- (BOOL)isVerified;
+
+- (NSString*)exportSessionAtMessageIndex:(NSUInteger*)messageIndex error:(NSError**)error;
+
@end
diff --git a/xcode/OLMKit/OLMInboundGroupSession.m b/xcode/OLMKit/OLMInboundGroupSession.m
index 6ef51c3..3ef02e8 100644
--- a/xcode/OLMKit/OLMInboundGroupSession.m
+++ b/xcode/OLMKit/OLMInboundGroupSession.m
@@ -76,6 +76,33 @@
return self;
}
+- (instancetype)initInboundGroupSessionWithImportedSession:(NSString *)sessionKey error:(NSError *__autoreleasing *)error
+{
+ self = [self init];
+ if (self) {
+ NSData *sessionKeyData = [sessionKey dataUsingEncoding:NSUTF8StringEncoding];
+ size_t result = olm_import_inbound_group_session(session, sessionKeyData.bytes, sessionKeyData.length);
+ if (result == olm_error()) {
+ const char *olm_error = olm_inbound_group_session_last_error(session);
+
+ NSString *errorString = [NSString stringWithUTF8String:olm_error];
+ NSLog(@"olm_import_inbound_group_session error: %@", errorString);
+
+ if (error && olm_error && errorString) {
+ *error = [NSError errorWithDomain:OLMErrorDomain
+ code:0
+ userInfo:@{
+ NSLocalizedDescriptionKey: errorString,
+ NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_import_inbound_group_session error: %@", errorString]
+ }];
+ }
+
+ return nil;
+ }
+ }
+ return self;
+}
+
- (NSString *)sessionIdentifier {
size_t length = olm_inbound_group_session_id_length(session);
NSMutableData *idData = [NSMutableData dataWithLength:length];
@@ -153,6 +180,33 @@
return plaintext;
}
+- (NSUInteger)firstKnownIndex
+{
+ return olm_inbound_group_session_first_known_index(session);
+}
+
+- (BOOL)isVerified
+{
+ return (0 != olm_inbound_group_session_is_verified(session));
+}
+
+- (NSString*)exportSessionAtMessageIndex:(NSUInteger*)messageIndex error:(NSError**)error;
+{
+ size_t length = olm_export_inbound_group_session_length(session);
+ NSMutableData *key = [NSMutableData dataWithLength:length];
+ size_t result = olm_export_inbound_group_session(session, key.mutableBytes, key.length, messageIndex);
+ if (result == olm_error()) {
+ const char *olm_error = olm_inbound_group_session_last_error(session);
+ NSString *errorString = [NSString stringWithUTF8String:olm_error];
+ if (error && errorString) {
+ *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
+ }
+ return nil;
+ }
+ NSString *keyString = [[NSString alloc] initWithData:key encoding:NSUTF8StringEncoding];
+ return keyString;
+}
+
#pragma mark OLMSerializable