From cf66af6f2e7c69a3e0712317f8473ab09711d426 Mon Sep 17 00:00:00 2001
From: manuroe <manu@matrix.org>
Date: Mon, 14 Nov 2016 16:54:51 +0100
Subject: OLMKit: Replaced NSAsserts by NSErrors

---
 xcode/OLMKit/OLMOutboundGroupSession.m | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

(limited to 'xcode/OLMKit/OLMOutboundGroupSession.m')

diff --git a/xcode/OLMKit/OLMOutboundGroupSession.m b/xcode/OLMKit/OLMOutboundGroupSession.m
index c86fa9f..9741db1 100644
--- a/xcode/OLMKit/OLMOutboundGroupSession.m
+++ b/xcode/OLMKit/OLMOutboundGroupSession.m
@@ -56,7 +56,7 @@
         size_t result = olm_init_outbound_group_session(session, random.mutableBytes, random.length);
         if (result == olm_error())   {
             const char *error = olm_outbound_group_session_last_error(session);
-            NSAssert(NO, @"olm_init_outbound_group_session error: %s", error);
+            NSLog(@"olm_init_outbound_group_session error: %s", error);
             return nil;
         }
     }
@@ -72,7 +72,7 @@
     size_t result = olm_outbound_group_session_id(session, idData.mutableBytes, idData.length);
     if (result == olm_error()) {
         const char *error = olm_outbound_group_session_last_error(session);
-        NSAssert(NO, @"olm_outbound_group_session_id error: %s", error);
+        NSLog(@"olm_outbound_group_session_id error: %s", error);
         return nil;
     }
     NSString *idString = [[NSString alloc] initWithData:idData encoding:NSUTF8StringEncoding];
@@ -92,14 +92,14 @@
     size_t result = olm_outbound_group_session_key(session, sessionKeyData.mutableBytes, sessionKeyData.length);
     if (result == olm_error()) {
         const char *error = olm_outbound_group_session_last_error(session);
-        NSAssert(NO, @"olm_outbound_group_session_key error: %s", error);
+        NSLog(@"olm_outbound_group_session_key error: %s", error);
         return nil;
     }
     NSString *sessionKey = [[NSString alloc] initWithData:sessionKeyData encoding:NSUTF8StringEncoding];
     return sessionKey;
 }
 
-- (NSString *)encryptMessage:(NSString *)message {
+- (NSString *)encryptMessage:(NSString *)message error:(NSError**)error {
     NSData *plaintextData = [message dataUsingEncoding:NSUTF8StringEncoding];
     size_t ciphertextLength = olm_group_encrypt_message_length(session, plaintextData.length);
     NSMutableData *ciphertext = [NSMutableData dataWithLength:ciphertextLength];
@@ -108,8 +108,19 @@
     }
     size_t result = olm_group_encrypt(session, plaintextData.bytes, plaintextData.length, ciphertext.mutableBytes, ciphertext.length);
     if (result == olm_error()) {
-        const char *error = olm_outbound_group_session_last_error(session);
-        NSAssert(NO, @"olm_group_encrypt error: %s", error);
+        const char *olm_error = olm_outbound_group_session_last_error(session);
+
+        NSString *errorString = [NSString stringWithUTF8String:olm_error];
+        NSLog(@"olm_group_encrypt error: %@", errorString);
+
+        if (error && olm_error && errorString) {
+            *error = [NSError errorWithDomain:OLMErrorDomain
+                                         code:0
+                                     userInfo:@{
+                                                NSLocalizedDescriptionKey: [NSString stringWithFormat:@"olm_group_encrypt error: %@", errorString]
+                                                }];
+        }
+
         return nil;
     }
     return [[NSString alloc] initWithData:ciphertext encoding:NSUTF8StringEncoding];
@@ -127,7 +138,7 @@
     NSParameterAssert(serializedData.length > 0);
     if (key.length == 0 || serializedData.length == 0) {
         if (error) {
-            *error = [NSError errorWithDomain:@"org.matrix.olm" code:0 userInfo:@{NSLocalizedDescriptionKey: @"Bad length."}];
+            *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: @"Bad length."}];
         }
         return nil;
     }
@@ -137,7 +148,7 @@
         const char *olm_error = olm_outbound_group_session_last_error(session);
         NSString *errorString = [NSString stringWithUTF8String:olm_error];
         if (error && errorString) {
-            *error = [NSError errorWithDomain:@"org.matrix.olm" code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
+            *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
         }
         return nil;
     }
@@ -154,7 +165,7 @@
         const char *olm_error = olm_outbound_group_session_last_error(session);
         NSString *errorString = [NSString stringWithUTF8String:olm_error];
         if (error && errorString) {
-            *error = [NSError errorWithDomain:@"org.matrix.olm" code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
+            *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
         }
         return nil;
     }
-- 
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