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authordec05eba <dec05eba@protonmail.com>2020-11-05 01:45:06 +0100
committerdec05eba <dec05eba@protonmail.com>2020-11-05 01:45:06 +0100
commit2a8202e74846d191a321cca1202175af9db6107d (patch)
treea6f455caf07da1186851f343a237a4c4e4484f46 /xcode/OLMKit/OLMSession.m
parent8efa0ec17d8c262f9c3fd7603e8074f74a053708 (diff)
Convert to sibs projectHEADmaster
Diffstat (limited to 'xcode/OLMKit/OLMSession.m')
-rw-r--r--xcode/OLMKit/OLMSession.m383
1 files changed, 0 insertions, 383 deletions
diff --git a/xcode/OLMKit/OLMSession.m b/xcode/OLMKit/OLMSession.m
deleted file mode 100644
index fc58a08..0000000
--- a/xcode/OLMKit/OLMSession.m
+++ /dev/null
@@ -1,383 +0,0 @@
-/*
- Copyright 2016 Chris Ballinger
- Copyright 2016 OpenMarket Ltd
- Copyright 2016 Vector Creations Ltd
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- */
-
-#import "OLMSession.h"
-#import "OLMUtility.h"
-#import "OLMAccount_Private.h"
-#import "OLMSession_Private.h"
-#include "olm/olm.h"
-
-@implementation OLMSession
-
-- (void) dealloc {
- olm_clear_session(_session);
- free(_session);
-}
-
-- (BOOL) initializeSessionMemory {
- size_t size = olm_session_size();
- _session = malloc(size);
- NSParameterAssert(_session != nil);
- if (!_session) {
- return NO;
- }
- _session = olm_session(_session);
- NSParameterAssert(_session != nil);
- if (!_session) {
- return NO;
- }
- return YES;
-}
-
-- (instancetype) init {
- self = [super init];
- if (!self) {
- return nil;
- }
- BOOL success = [self initializeSessionMemory];
- if (!success) {
- return nil;
- }
- return self;
-}
-
-- (instancetype) initWithAccount:(OLMAccount*)account {
- self = [self init];
- if (!self) {
- return nil;
- }
- NSParameterAssert(account != nil && account.account != NULL);
- if (account == nil || account.account == NULL) {
- return nil;
- }
- _account = account;
- return self;
-}
-
-- (instancetype) initOutboundSessionWithAccount:(OLMAccount*)account theirIdentityKey:(NSString*)theirIdentityKey theirOneTimeKey:(NSString*)theirOneTimeKey error:(NSError**)error {
- self = [self initWithAccount:account];
- if (!self) {
- return nil;
- }
- NSMutableData *random = [OLMUtility randomBytesOfLength:olm_create_outbound_session_random_length(_session)];
- NSData *idKey = [theirIdentityKey dataUsingEncoding:NSUTF8StringEncoding];
- NSData *otKey = [theirOneTimeKey dataUsingEncoding:NSUTF8StringEncoding];
- size_t result = olm_create_outbound_session(_session, account.account, idKey.bytes, idKey.length, otKey.bytes, otKey.length, random.mutableBytes, random.length);
- [random resetBytesInRange:NSMakeRange(0, random.length)];
- if (result == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_create_outbound_session error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_create_outbound_session error: %@", errorString]
- }];
- }
-
- return nil;
- }
- return self;
-}
-
-- (instancetype) initInboundSessionWithAccount:(OLMAccount*)account oneTimeKeyMessage:(NSString*)oneTimeKeyMessage error:(NSError**)error {
- self = [self initWithAccount:account];
- if (!self) {
- return nil;
- }
- NSMutableData *otk = [NSMutableData dataWithData:[oneTimeKeyMessage dataUsingEncoding:NSUTF8StringEncoding]];
- size_t result = olm_create_inbound_session(_session, account.account, otk.mutableBytes, oneTimeKeyMessage.length);
- if (result == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_create_inbound_session error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_create_inbound_session error: %@", errorString]
- }];
- }
-
- return nil;
- }
- return self;
-}
-
-- (instancetype) initInboundSessionWithAccount:(OLMAccount*)account theirIdentityKey:(NSString*)theirIdentityKey oneTimeKeyMessage:(NSString*)oneTimeKeyMessage error:(NSError**)error {
- self = [self initWithAccount:account];
- if (!self) {
- return nil;
- }
- NSData *idKey = [theirIdentityKey dataUsingEncoding:NSUTF8StringEncoding];
- NSMutableData *otk = [NSMutableData dataWithData:[oneTimeKeyMessage dataUsingEncoding:NSUTF8StringEncoding]];
- size_t result = olm_create_inbound_session_from(_session, account.account, idKey.bytes, idKey.length, otk.mutableBytes, otk.length);
- if (result == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_create_inbound_session_from error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_create_inbound_session_from error: %@", errorString]
- }];
- }
-
- return nil;
- }
- return self;
-}
-
-- (NSString*) sessionIdentifier {
- size_t length = olm_session_id_length(_session);
- NSMutableData *idData = [NSMutableData dataWithLength:length];
- if (!idData) {
- return nil;
- }
- size_t result = olm_session_id(_session, idData.mutableBytes, idData.length);
- if (result == olm_error()) {
- const char *error = olm_session_last_error(_session);
- NSLog(@"olm_session_id error: %s", error);
- return nil;
- }
- NSString *idString = [[NSString alloc] initWithData:idData encoding:NSUTF8StringEncoding];
- return idString;
-}
-
-- (BOOL)matchesInboundSession:(NSString *)oneTimeKeyMessage {
- NSMutableData *otk = [NSMutableData dataWithData:[oneTimeKeyMessage dataUsingEncoding:NSUTF8StringEncoding]];
-
- size_t result = olm_matches_inbound_session(_session, otk.mutableBytes, otk.length);
- if (result == 1) {
- return YES;
- }
- else {
- if (result == olm_error()) {
- const char *error = olm_session_last_error(_session);
- NSLog(@"olm_matches_inbound_session error: %s", error);
- }
- return NO;
- }
-}
-
-- (BOOL)matchesInboundSessionFrom:(NSString *)theirIdentityKey oneTimeKeyMessage:(NSString *)oneTimeKeyMessage {
- NSData *idKey = [theirIdentityKey dataUsingEncoding:NSUTF8StringEncoding];
- NSMutableData *otk = [NSMutableData dataWithData:[oneTimeKeyMessage dataUsingEncoding:NSUTF8StringEncoding]];
-
- size_t result = olm_matches_inbound_session_from(_session,
- idKey.bytes, idKey.length,
- otk.mutableBytes, otk.length);
- if (result == 1) {
- return YES;
- }
- else {
- if (result == olm_error()) {
- const char *error = olm_session_last_error(_session);
- NSLog(@"olm_matches_inbound_session error: %s", error);
- }
- return NO;
- }
-}
-
-- (OLMMessage*) encryptMessage:(NSString*)message error:(NSError**)error {
- size_t messageType = olm_encrypt_message_type(_session);
- size_t randomLength = olm_encrypt_random_length(_session);
- NSMutableData *random = [OLMUtility randomBytesOfLength:randomLength];
- NSData *plaintextData = [message dataUsingEncoding:NSUTF8StringEncoding];
- size_t ciphertextLength = olm_encrypt_message_length(_session, plaintextData.length);
- NSMutableData *ciphertext = [NSMutableData dataWithLength:ciphertextLength];
- if (!ciphertext) {
- return nil;
- }
- size_t result = olm_encrypt(_session, plaintextData.bytes, plaintextData.length, random.mutableBytes, random.length, ciphertext.mutableBytes, ciphertext.length);
- [random resetBytesInRange:NSMakeRange(0, random.length)];
- if (result == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_encrypt error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_encrypt error: %@", errorString]
- }];
- }
-
- return nil;
- }
- NSString *ciphertextString = [[NSString alloc] initWithData:ciphertext encoding:NSUTF8StringEncoding];
- OLMMessage *encryptedMessage = [[OLMMessage alloc] initWithCiphertext:ciphertextString type:messageType];
- return encryptedMessage;
-}
-
-- (NSString*) decryptMessage:(OLMMessage*)message error:(NSError**)error {
- NSParameterAssert(message != nil);
- NSData *messageData = [message.ciphertext dataUsingEncoding:NSUTF8StringEncoding];
- if (!messageData) {
- return nil;
- }
- NSMutableData *mutMessage = messageData.mutableCopy;
- size_t maxPlaintextLength = olm_decrypt_max_plaintext_length(_session, message.type, mutMessage.mutableBytes, mutMessage.length);
- if (maxPlaintextLength == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_decrypt_max_plaintext_length error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_decrypt_max_plaintext_length error: %@", errorString]
- }];
- }
-
- return nil;
- }
- // message buffer is destroyed by olm_decrypt_max_plaintext_length
- mutMessage = messageData.mutableCopy;
- NSMutableData *plaintextData = [NSMutableData dataWithLength:maxPlaintextLength];
- size_t plaintextLength = olm_decrypt(_session, message.type, mutMessage.mutableBytes, mutMessage.length, plaintextData.mutableBytes, plaintextData.length);
- if (plaintextLength == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
-
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- NSLog(@"olm_decrypt error: %@", errorString);
-
- if (error && olm_error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain
- code:0
- userInfo:@{
- NSLocalizedDescriptionKey: errorString,
- NSLocalizedFailureReasonErrorKey: [NSString stringWithFormat:@"olm_decrypt error: %@", errorString]
- }];
- }
-
- return nil;
- }
- plaintextData.length = plaintextLength;
- NSString *plaintext = [[NSString alloc] initWithData:plaintextData encoding:NSUTF8StringEncoding];
- [plaintextData resetBytesInRange:NSMakeRange(0, plaintextData.length)];
- return plaintext;
-}
-
-#pragma mark OLMSerializable
-
-/** Initializes from encrypted serialized data. Will throw error if invalid key or invalid base64. */
-- (instancetype) initWithSerializedData:(NSString*)serializedData key:(NSData*)key error:(NSError**)error {
- self = [self init];
- if (!self) {
- return nil;
- }
- NSParameterAssert(key.length > 0);
- NSParameterAssert(serializedData.length > 0);
- if (key.length == 0 || serializedData.length == 0) {
- if (error) {
- *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: @"Bad length."}];
- }
- return nil;
- }
- NSMutableData *pickle = [serializedData dataUsingEncoding:NSUTF8StringEncoding].mutableCopy;
- size_t result = olm_unpickle_session(_session, key.bytes, key.length, pickle.mutableBytes, pickle.length);
- [pickle resetBytesInRange:NSMakeRange(0, pickle.length)];
- if (result == olm_error()) {
- const char *olm_error = olm_session_last_error(_session);
- NSString *errorString = [NSString stringWithUTF8String:olm_error];
- if (error && errorString) {
- *error = [NSError errorWithDomain:OLMErrorDomain code:0 userInfo:@{NSLocalizedDescriptionKey: errorString}];
- }
- return nil;
- }
- return self;
-}
-
-/** Serializes and encrypts object data, outputs base64 blob */
-- (NSString*) serializeDataWithKey:(NSData*)key error:(NSError**)error {
- NSParameterAssert(key.length > 0);
- size_t length = olm_pickle_session_length(_session);
- NSMutableData *pickled = [NSMutableData dataWithLength:length];
- size_t result = olm_pickle_session(_session, key.bytes, key.length, pickled.mutableBytes, pickled.length);
- if (result == olm_error()) {
- const char *olm_error = olm_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 *pickleString = [[NSString alloc] initWithData:pickled encoding:NSUTF8StringEncoding];
- [pickled resetBytesInRange:NSMakeRange(0, pickled.length)];
- return pickleString;
-}
-
-#pragma mark NSSecureCoding
-
-+ (BOOL) supportsSecureCoding {
- return YES;
-}
-
-#pragma mark NSCoding
-
-- (id)initWithCoder:(NSCoder *)decoder {
- NSString *version = [decoder decodeObjectOfClass:[NSString class] forKey:@"version"];
-
- NSError *error = nil;
-
- if ([version isEqualToString:@"1"]) {
- NSString *pickle = [decoder decodeObjectOfClass:[NSString class] forKey:@"pickle"];
- NSData *key = [decoder decodeObjectOfClass:[NSData class] forKey:@"key"];
-
- self = [self initWithSerializedData:pickle key:key error:&error];
- }
-
- NSParameterAssert(error == nil);
- NSParameterAssert(self != nil);
- if (!self) {
- return nil;
- }
-
- return self;
-}
-
-- (void)encodeWithCoder:(NSCoder *)encoder {
- NSData *key = [OLMUtility randomBytesOfLength:32];
- NSError *error = nil;
- NSString *pickle = [self serializeDataWithKey:key error:&error];
- NSParameterAssert(pickle.length > 0 && error == nil);
-
- [encoder encodeObject:pickle forKey:@"pickle"];
- [encoder encodeObject:key forKey:@"key"];
- [encoder encodeObject:@"1" forKey:@"version"];
-}
-
-@end