element-ios/Riot/Modules/MatrixKit/Views/EncryptionInfoView/MXKEncryptionInfoView.m

507 lines
26 KiB
Objective-C

/*
Copyright 2018-2024 New Vector Ltd.
Copyright 2017 Vector Creations Ltd
Copyright 2016 OpenMarket Ltd
SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
*/
#import "MXKEncryptionInfoView.h"
#import "NSBundle+MatrixKit.h"
#import "MXKConstants.h"
#import "MXKSwiftHeader.h"
static NSAttributedString *verticalWhitespace = nil;
@interface MXKEncryptionInfoView ()
{
/**
Current request in progress.
*/
MXHTTPOperation *mxCurrentOperation;
}
@end
@implementation MXKEncryptionInfoView
+ (UINib *)nib
{
// Check whether a nib file is available
NSBundle *mainBundle = [NSBundle mxk_bundleForClass:self.class];
NSString *path = [mainBundle pathForResource:NSStringFromClass([self class]) ofType:@"nib"];
if (path)
{
return [UINib nibWithNibName:NSStringFromClass([self class]) bundle:mainBundle];
}
return [UINib nibWithNibName:NSStringFromClass([MXKEncryptionInfoView class]) bundle:[NSBundle mxk_bundleForClass:[MXKEncryptionInfoView class]]];
}
- (void)awakeFromNib
{
[super awakeFromNib];
// Localize string
[_cancelButton setTitle:[VectorL10n ok] forState:UIControlStateNormal];
[_cancelButton setTitle:[VectorL10n ok] forState:UIControlStateHighlighted];
[_confirmVerifyButton setTitle:[VectorL10n roomEventEncryptionVerifyOk] forState:UIControlStateNormal];
[_confirmVerifyButton setTitle:[VectorL10n roomEventEncryptionVerifyOk] forState:UIControlStateHighlighted];
}
- (void)layoutSubviews
{
[super layoutSubviews];
// Scroll to the top the text view content
self.textView.contentOffset = CGPointZero;
}
- (void)removeFromSuperview
{
if (mxCurrentOperation)
{
[mxCurrentOperation cancel];
mxCurrentOperation = nil;
}
[super removeFromSuperview];
}
#pragma mark - Override MXKView
-(void)customizeViewRendering
{
[super customizeViewRendering];
_defaultTextColor = [UIColor blackColor];
}
#pragma mark -
- (instancetype)initWithEvent:(MXEvent*)event andMatrixSession:(MXSession*)session
{
self = [[[self class] nib] instantiateWithOwner:nil options:nil].firstObject;
if (self)
{
_mxEvent = event;
_mxSession = session;
_mxDeviceInfo = nil;
[self setTranslatesAutoresizingMaskIntoConstraints: NO];
[self updateTextViewText];
}
return self;
}
- (instancetype)initWithDeviceInfo:(MXDeviceInfo*)deviceInfo andMatrixSession:(MXSession*)session
{
self = [[[self class] nib] instantiateWithOwner:nil options:nil].firstObject;
if (self)
{
_mxEvent = nil;
_mxDeviceInfo = deviceInfo;
_mxSession = session;
[self setTranslatesAutoresizingMaskIntoConstraints: NO];
[self updateTextViewText];
}
return self;
}
- (void)dealloc
{
_mxEvent = nil;
_mxSession = nil;
_mxDeviceInfo = nil;
}
#pragma mark -
- (void)updateTextViewText
{
// Prepare the text view content
NSMutableAttributedString *textViewAttributedString = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoTitle]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:17]}];
if (_mxEvent)
{
NSString *senderId = _mxEvent.sender;
if (_mxSession && _mxSession.crypto && !_mxDeviceInfo)
{
_mxDeviceInfo = [_mxSession.crypto eventDeviceInfo:_mxEvent];
if (!_mxDeviceInfo)
{
// Trigger a server request to get the device information for the event sender
mxCurrentOperation = [_mxSession.crypto downloadKeys:@[senderId] forceDownload:NO success:^(MXUsersDevicesMap<MXDeviceInfo *> *usersDevicesInfoMap, NSDictionary<NSString *,MXCrossSigningInfo *> *crossSigningKeysMap) {
self->mxCurrentOperation = nil;
// Sanity check: check whether some device information has been retrieved.
self->_mxDeviceInfo = [self.mxSession.crypto eventDeviceInfo:self.mxEvent];
if (self.mxDeviceInfo)
{
[self updateTextViewText];
}
} failure:^(NSError *error) {
self->mxCurrentOperation = nil;
MXLogDebug(@"[MXKEncryptionInfoView] Crypto failed to download device info for user: %@", self.mxEvent.sender);
// Notify MatrixKit user
NSString *myUserId = self.mxSession.myUser.userId;
[[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
}];
}
}
// Event information
NSMutableAttributedString *eventInformationString = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEvent]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:15]}];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
NSString *senderKey = _mxEvent.senderKey;
NSString *claimedKey = _mxEvent.keysClaimed[@"ed25519"];
NSString *algorithm = _mxEvent.wireContent[@"algorithm"];
NSString *sessionId = _mxEvent.wireContent[@"session_id"];
NSString *safetyMessage = _mxEvent.decryptionDecoration.message;
if (!safetyMessage)
{
// Use default copy if none is provided by the decryption decoration
BOOL isUntrusted = _mxEvent.decryptionDecoration && _mxEvent.decryptionDecoration.color != MXEventDecryptionDecorationColorNone;
safetyMessage = isUntrusted ? [VectorL10n roomEventEncryptionInfoKeyAuthenticityNotGuaranteed] : [VectorL10n userVerificationSessionsListSessionTrusted];
}
NSString *decryptionError;
if (_mxEvent.decryptionError)
{
decryptionError = [NSString stringWithFormat:@"** %@ **", _mxEvent.decryptionError.localizedDescription];
}
if (!senderKey.length)
{
senderKey = [VectorL10n roomEventEncryptionInfoEventNone];
}
if (!claimedKey.length)
{
claimedKey = [VectorL10n roomEventEncryptionInfoEventNone];
}
if (!algorithm.length)
{
algorithm = [VectorL10n roomEventEncryptionInfoEventUnencrypted];
}
if (!sessionId.length)
{
sessionId = [VectorL10n roomEventEncryptionInfoEventNone];
}
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventUserId]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:senderId
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventIdentityKey]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:senderKey
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventFingerprintKey]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:claimedKey
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventAlgorithm]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:algorithm
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
if (decryptionError.length)
{
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventDecryptionError]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:decryptionError
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
}
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoEventSessionId]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:sessionId
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[NSString stringWithFormat:@"%@\n", [VectorL10n sslTrust]]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:safetyMessage
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[eventInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[textViewAttributedString appendAttributedString:eventInformationString];
}
// Device information
NSMutableAttributedString *deviceInformationString = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDevice]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:15]}];
[deviceInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
if (_mxDeviceInfo)
{
NSString *name = _mxDeviceInfo.displayName;
NSString *deviceId = _mxDeviceInfo.deviceId;
NSMutableAttributedString *verification;
NSString *fingerprint = _mxDeviceInfo.fingerprint;
// Display here the Verify and Block buttons except if the device is the current one.
_verifyButton.hidden = _blockButton.hidden = [_mxDeviceInfo.deviceId isEqualToString:_mxSession.matrixRestClient.credentials.deviceId];
switch (_mxDeviceInfo.trustLevel.localVerificationStatus)
{
case MXDeviceUnknown:
case MXDeviceUnverified:
{
verification = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceNotVerified]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoVerify] forState:UIControlStateNormal];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoVerify] forState:UIControlStateHighlighted];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoBlock] forState:UIControlStateNormal];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoBlock] forState:UIControlStateHighlighted];
break;
}
case MXDeviceVerified:
{
verification = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceVerified]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoUnverify] forState:UIControlStateNormal];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoUnverify] forState:UIControlStateHighlighted];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoBlock] forState:UIControlStateNormal];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoBlock] forState:UIControlStateHighlighted];
break;
}
case MXDeviceBlocked:
{
verification = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceBlocked]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoVerify] forState:UIControlStateNormal];
[_verifyButton setTitle:[VectorL10n roomEventEncryptionInfoVerify] forState:UIControlStateHighlighted];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoUnblock] forState:UIControlStateNormal];
[_blockButton setTitle:[VectorL10n roomEventEncryptionInfoUnblock] forState:UIControlStateHighlighted];
break;
}
default:
break;
}
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceName]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:(name.length ? name : @"")
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceId]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor, NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:deviceId
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceVerification]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor, NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:verification];
[deviceInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceFingerprint]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor, NSFontAttributeName: [UIFont boldSystemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:fingerprint
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
[deviceInformationString appendAttributedString:[MXKEncryptionInfoView verticalWhitespace]];
}
else
{
// Unknown device
[deviceInformationString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionInfoDeviceUnknown]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor, NSFontAttributeName: [UIFont italicSystemFontOfSize:14]}]];
}
[textViewAttributedString appendAttributedString:deviceInformationString];
self.textView.attributedText = textViewAttributedString;
}
+ (NSAttributedString *)verticalWhitespace
{
if (verticalWhitespace == nil)
{
verticalWhitespace = [[NSAttributedString alloc] initWithString:@"\n\n" attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:4]}];
}
return verticalWhitespace;
}
#pragma mark - Actions
- (IBAction)onButtonPressed:(id)sender
{
if (sender == _cancelButton)
{
[self removeFromSuperview];
if ([_delegate respondsToSelector:@selector(encryptionInfoViewDidClose:)])
{
[_delegate encryptionInfoViewDidClose:self];
}
}
// Note: Verify and Block buttons are hidden when the deviceInfo is not available
else if (sender == _confirmVerifyButton && _mxDeviceInfo)
{
[_mxSession.crypto setDeviceVerification:MXDeviceVerified forDevice:_mxDeviceInfo.deviceId ofUser:_mxDeviceInfo.userId success:^{
// Refresh data
self->_mxDeviceInfo = [self.mxSession.crypto eventDeviceInfo:self.mxEvent];
if (self->_delegate)
{
[self->_delegate encryptionInfoView:self didDeviceInfoVerifiedChange:self.mxDeviceInfo];
}
[self removeFromSuperview];
} failure:^(NSError *error) {
[self removeFromSuperview];
}];
}
else if (_mxDeviceInfo)
{
MXDeviceVerification verificationStatus;
if (sender == _verifyButton)
{
verificationStatus = ((_mxDeviceInfo.trustLevel.localVerificationStatus == MXDeviceVerified) ? MXDeviceUnverified : MXDeviceVerified);
}
else if (sender == _blockButton)
{
verificationStatus = ((_mxDeviceInfo.trustLevel.localVerificationStatus == MXDeviceBlocked) ? MXDeviceUnverified : MXDeviceBlocked);
}
else
{
// Unexpected case
MXLogDebug(@"[MXKEncryptionInfoView] Invalid button pressed.");
return;
}
if (verificationStatus == MXDeviceVerified)
{
// Prompt user
NSMutableAttributedString *textViewAttributedString = [[NSMutableAttributedString alloc]
initWithString:[VectorL10n roomEventEncryptionVerifyTitle]
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont boldSystemFontOfSize:17]}];
NSString *message = [VectorL10n roomEventEncryptionVerifyMessage:_mxDeviceInfo.displayName :_mxDeviceInfo.deviceId :_mxDeviceInfo.fingerprint];
[textViewAttributedString appendAttributedString:[[NSMutableAttributedString alloc]
initWithString:message
attributes:@{NSForegroundColorAttributeName: _defaultTextColor,
NSFontAttributeName: [UIFont systemFontOfSize:14]}]];
self.textView.attributedText = textViewAttributedString;
[_cancelButton setTitle:[VectorL10n cancel] forState:UIControlStateNormal];
[_cancelButton setTitle:[VectorL10n cancel] forState:UIControlStateHighlighted];
_verifyButton.hidden = _blockButton.hidden = YES;
_confirmVerifyButton.hidden = NO;
}
else
{
[_mxSession.crypto setDeviceVerification:verificationStatus forDevice:_mxDeviceInfo.deviceId ofUser:_mxDeviceInfo.userId success:^{
// Refresh data
self->_mxDeviceInfo = [self.mxSession.crypto eventDeviceInfo:self.mxEvent];
if (self->_delegate)
{
[self->_delegate encryptionInfoView:self didDeviceInfoVerifiedChange:self.mxDeviceInfo];
}
[self removeFromSuperview];
} failure:^(NSError *error) {
[self removeFromSuperview];
}];
}
}
}
@end