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