550 lines
20 KiB
Objective-C
550 lines
20 KiB
Objective-C
//
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// RNKeychainManager.m
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// RNKeychainManager
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//
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// Created by Joel Arvidsson on 2015-05-20.
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// Copyright (c) 2015 Joel Arvidsson. All rights reserved.
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//
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#import <Security/Security.h>
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#import "RNKeychainManager.h"
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#import <React/RCTConvert.h>
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#import <React/RCTBridge.h>
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#import <React/RCTUtils.h>
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#import <LocalAuthentication/LAContext.h>
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#import <UIKit/UIKit.h>
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#import "RNKeychainAuthenticationListener.h"
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@implementation RNKeychainManager
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@synthesize bridge = _bridge;
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RCT_EXPORT_MODULE();
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// Messages from the comments in <Security/SecBase.h>
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NSString *messageForError(NSError *error)
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{
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switch (error.code) {
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case errSecUnimplemented:
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return @"Function or operation not implemented.";
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case errSecIO:
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return @"I/O error.";
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case errSecOpWr:
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return @"File already open with with write permission.";
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case errSecParam:
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return @"One or more parameters passed to a function where not valid.";
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case errSecAllocate:
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return @"Failed to allocate memory.";
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case errSecUserCanceled:
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return @"User canceled the operation.";
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case errSecBadReq:
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return @"Bad parameter or invalid state for operation.";
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case errSecNotAvailable:
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return @"No keychain is available. You may need to restart your computer.";
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case errSecDuplicateItem:
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return @"The specified item already exists in the keychain.";
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case errSecItemNotFound:
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return @"The specified item could not be found in the keychain.";
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case errSecInteractionNotAllowed:
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return @"User interaction is not allowed.";
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case errSecDecode:
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return @"Unable to decode the provided data.";
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case errSecAuthFailed:
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return @"The user name or passphrase you entered is not correct.";
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case errSecMissingEntitlement:
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return @"Internal error when a required entitlement isn't present.";
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default:
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return error.localizedDescription;
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}
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}
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NSString *codeForError(NSError *error)
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{
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return [NSString stringWithFormat:@"%li", (long)error.code];
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}
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void rejectWithError(RCTPromiseRejectBlock reject, NSError *error)
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{
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return reject(codeForError(error), messageForError(error), nil);
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}
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CFStringRef accessibleValue(NSDictionary *options)
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{
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if (options && options[@"accessible"] != nil) {
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NSDictionary *keyMap = @{
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@"AccessibleWhenUnlocked": (__bridge NSString *)kSecAttrAccessibleWhenUnlocked,
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@"AccessibleAfterFirstUnlock": (__bridge NSString *)kSecAttrAccessibleAfterFirstUnlock,
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@"AccessibleAlways": (__bridge NSString *)kSecAttrAccessibleAlways,
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@"AccessibleWhenPasscodeSetThisDeviceOnly": (__bridge NSString *)kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly,
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@"AccessibleWhenUnlockedThisDeviceOnly": (__bridge NSString *)kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
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@"AccessibleAfterFirstUnlockThisDeviceOnly": (__bridge NSString *)kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly,
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@"AccessibleAlwaysThisDeviceOnly": (__bridge NSString *)kSecAttrAccessibleAlwaysThisDeviceOnly
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};
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NSString *result = keyMap[options[@"accessible"]];
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if (result) {
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return (__bridge CFStringRef)result;
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}
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}
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return kSecAttrAccessibleAfterFirstUnlock;
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}
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NSString *serviceValue(NSDictionary *options)
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{
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if (options && options[@"service"] != nil) {
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return options[@"service"];
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}
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return [[NSBundle mainBundle] bundleIdentifier];
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}
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NSString *accessGroupValue(NSDictionary *options)
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{
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if (options && options[@"accessGroup"] != nil) {
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return options[@"accessGroup"];
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}
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return nil;
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}
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#pragma mark - Proposed functionality - Helpers
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#define kAuthenticationType @"authenticationType"
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#define kAuthenticationTypeBiometrics @"AuthenticationWithBiometrics"
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#define kAccessControlType @"accessControl"
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#define kAccessControlUserPresence @"UserPresence"
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#define kAccessControlTouchIDAny @"TouchIDAny"
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#define kAccessControlTouchIDCurrentSet @"TouchIDCurrentSet"
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#define kAccessControlDevicePasscode @"DevicePasscode"
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#define kAccessControlTouchIDAnyOrDevicePasscode @"TouchIDAnyOrDevicePasscode"
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#define kAccessControlTouchIDCurrentSetOrDevicePasscode @"TouchIDCurrentSetOrDevicePasscode"
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#define kBiometryTypeTouchID @"TouchID"
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#define kBiometryTypeFaceID @"FaceID"
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#define kAuthenticationPromptMessage @"authenticationPrompt"
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LAPolicy authPolicy(NSDictionary *options)
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{
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if (options && options[kAuthenticationType]) {
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if ([ options[kAuthenticationType] isEqualToString:kAuthenticationTypeBiometrics ]) {
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return LAPolicyDeviceOwnerAuthenticationWithBiometrics;
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}
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}
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return LAPolicyDeviceOwnerAuthentication;
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}
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SecAccessControlCreateFlags secureAccessControl(NSDictionary *options)
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{
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if (options && options[kAccessControlType]) {
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if ([ options[kAccessControlType] isEqualToString: kAccessControlUserPresence ]) {
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return kSecAccessControlUserPresence;
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}
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else if ([ options[kAccessControlType] isEqualToString: kAccessControlTouchIDAny ]) {
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return kSecAccessControlTouchIDAny;
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}
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else if ([ options[kAccessControlType] isEqualToString: kAccessControlTouchIDCurrentSet ]) {
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return kSecAccessControlTouchIDCurrentSet;
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}
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else if ([ options[kAccessControlType] isEqualToString: kAccessControlDevicePasscode ]) {
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return kSecAccessControlDevicePasscode;
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}
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else if ([ options[kAccessControlType] isEqualToString: kAccessControlTouchIDAnyOrDevicePasscode ]) {
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return kSecAccessControlTouchIDAny|kSecAccessControlOr|kSecAccessControlDevicePasscode;
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}
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else if ([ options[kAccessControlType] isEqualToString: kAccessControlTouchIDCurrentSetOrDevicePasscode ]) {
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return kSecAccessControlTouchIDCurrentSet|kSecAccessControlOr|kSecAccessControlDevicePasscode;
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}
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}
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return kSecAccessControlTouchIDCurrentSet|kSecAccessControlOr|kSecAccessControlDevicePasscode;
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}
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//LAPolicyDeviceOwnerAuthenticationWithBiometrics | LAPolicyDeviceOwnerAuthentication
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- (void)insertKeychainEntry:(NSDictionary *)attributes withAccessGroup:(NSString * __nullable)accessGroup resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject
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{
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if (accessGroup != nil) {
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NSMutableDictionary *mAttributes = attributes.mutableCopy;
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mAttributes[(__bridge NSString *)kSecAttrAccessGroup] = accessGroup;
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attributes = [NSDictionary dictionaryWithDictionary:mAttributes];
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}
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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OSStatus osStatus = SecItemAdd((__bridge CFDictionaryRef) attributes, NULL);
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dispatch_async(dispatch_get_main_queue(), ^{
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if (osStatus != noErr && osStatus != errSecItemNotFound) {
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NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
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return rejectWithError(reject, error);
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} else {
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return resolve(@(YES));
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}
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});
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});
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}
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- (OSStatus)deletePasswordsForService:(NSString *)service
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{
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NSDictionary *query = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassGenericPassword),
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(__bridge NSString *)kSecAttrService: service,
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(__bridge NSString *)kSecReturnAttributes: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecReturnData: (__bridge id)kCFBooleanFalse
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};
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return SecItemDelete((__bridge CFDictionaryRef) query);
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}
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- (OSStatus)deleteCredentialsForServer:(NSString *)server
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{
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NSDictionary *query = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassInternetPassword),
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(__bridge NSString *)kSecAttrServer: server,
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(__bridge NSString *)kSecReturnAttributes: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecReturnData: (__bridge id)kCFBooleanFalse
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};
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return SecItemDelete((__bridge CFDictionaryRef) query);
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}
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#pragma mark - Proposed functionality - RCT_EXPORT_METHOD
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#if TARGET_OS_IOS
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RCT_EXPORT_METHOD(canCheckAuthentication:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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LAPolicy policyToEvaluate = authPolicy(options);
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NSError *aerr = nil;
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BOOL canBeProtected = [[LAContext new] canEvaluatePolicy:policyToEvaluate error:&aerr];
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if (aerr || !canBeProtected) {
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return resolve(@(NO));
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} else {
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return resolve(@(YES));
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}
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}
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#endif
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#if TARGET_OS_IOS
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RCT_EXPORT_METHOD(getSupportedBiometryType:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSError *aerr = nil;
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LAContext *context = [LAContext new];
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BOOL canBeProtected = [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&aerr];
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if (!aerr && canBeProtected) {
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if (@available(iOS 11, *)) {
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if (context.biometryType == LABiometryTypeFaceID) {
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return resolve(kBiometryTypeFaceID);
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}
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}
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return resolve(kBiometryTypeTouchID);
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}
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return resolve([NSNull null]);
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}
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#endif
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RCT_EXPORT_METHOD(setPasswordWithAuthentication:(NSDictionary *)options withUsername:(NSString *)username withPassword:(NSString *)password resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSString *service = serviceValue(options);
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NSError *aerr = nil;
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BOOL canAuthenticate = [[LAContext new] canEvaluatePolicy:LAPolicyDeviceOwnerAuthentication error:&aerr];
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if (aerr || !canAuthenticate) {
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return rejectWithError(reject, aerr);
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}
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[self deletePasswordsForService:service];
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CFErrorRef error = NULL;
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SecAccessControlRef sacRef = SecAccessControlCreateWithFlags(kCFAllocatorDefault,
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kSecAttrAccessibleWhenUnlockedThisDeviceOnly, //kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly,
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secureAccessControl(options),
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&error);
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if (error) {
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// ok: failed
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return rejectWithError(reject, aerr);
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}
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NSDictionary *attributes = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassGenericPassword),
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(__bridge NSString *)kSecAttrService: service,
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(__bridge NSString *)kSecAttrAccount: username,
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(__bridge NSString *)kSecValueData: [password dataUsingEncoding:NSUTF8StringEncoding],
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(__bridge NSString *)kSecAttrAccessControl: (__bridge id)sacRef
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};
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[self insertKeychainEntry:attributes withAccessGroup:accessGroupValue(options) resolver:resolve rejecter:reject];
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}
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RCT_EXPORT_METHOD(getPasswordWithAuthentication:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSString *service = serviceValue(options);
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NSString *promptMessage = @"Authenticate to retrieve secret!";
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if (options && options[kAuthenticationPromptMessage]) {
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promptMessage = options[kAuthenticationPromptMessage];
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}
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NSDictionary *query = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassGenericPassword),
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(__bridge NSString *)kSecAttrService: service,
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(__bridge NSString *)kSecReturnAttributes: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecReturnData: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecMatchLimit: (__bridge NSString *)kSecMatchLimitOne,
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(__bridge NSString *)kSecUseOperationPrompt: promptMessage
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};
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// Notify AppDelegate
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dispatch_async(dispatch_get_main_queue(), ^{
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[self notifyAuthenticationListener: YES];
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});
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// Look up password for service in the keychain
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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__block NSDictionary* found = nil;
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CFTypeRef foundTypeRef = NULL;
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OSStatus osStatus = SecItemCopyMatching((__bridge CFDictionaryRef) query, (CFTypeRef*)&foundTypeRef);
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dispatch_async(dispatch_get_main_queue(), ^{
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[self notifyAuthenticationListener: NO];
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if (osStatus != noErr && osStatus != errSecItemNotFound) {
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NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
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return rejectWithError(reject, error);
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}
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found = (__bridge NSDictionary*)(foundTypeRef);
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if (!found) {
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return resolve(@(NO));
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}
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// Found
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NSString *username = (NSString *) [found objectForKey:(__bridge id)(kSecAttrAccount)];
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NSString *password = [[NSString alloc] initWithData:[found objectForKey:(__bridge id)(kSecValueData)] encoding:NSUTF8StringEncoding];
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return resolve(@{
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@"service": service,
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@"username": username,
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@"password": password
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});
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});
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});
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}
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- (void) notifyAuthenticationListener:(BOOL)willPresent {
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id<UIApplicationDelegate> appDelegate = [ UIApplication sharedApplication ].delegate;
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if ([ appDelegate conformsToProtocol:@protocol(RNKeychainAuthenticationListener) ]) {
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((id<RNKeychainAuthenticationListener>)appDelegate).willPromptForAuthentication = willPresent;
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}
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}
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#pragma mark - RNKeychain
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RCT_EXPORT_METHOD(setGenericPasswordForOptions:(NSDictionary *)options withUsername:(NSString *)username withPassword:(NSString *)password resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSString *service = serviceValue(options);
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[self deletePasswordsForService:service];
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// Create dictionary of parameters to add
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NSDictionary *attributes = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassGenericPassword),
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(__bridge NSString *)kSecAttrService: service,
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(__bridge NSString *)kSecAttrAccount: username,
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(__bridge NSString *)kSecValueData: [password dataUsingEncoding:NSUTF8StringEncoding],
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(__bridge NSString *)kSecAttrAccessible: (__bridge id)accessibleValue(options)
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};
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[self insertKeychainEntry:attributes withAccessGroup:accessGroupValue(options) resolver:resolve rejecter:reject];
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}
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RCT_EXPORT_METHOD(getGenericPasswordForOptions:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSString *service = serviceValue(options);
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// secure compatibility with TouchId / Passcode secured stored items
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// http://stackoverflow.com/questions/42339000/ksecuseauthenticationuiskip-how-to-use-it
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// Silently skip any items that require user authentication. Only use this value with the SecItemCopyMatching function.
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NSDictionary *query = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassGenericPassword),
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(__bridge NSString *)kSecAttrService: service,
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(__bridge NSString *)kSecReturnAttributes: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecReturnData: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecMatchLimit: (__bridge NSString *)kSecMatchLimitOne,
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(__bridge NSString *)kSecUseAuthenticationUI: (__bridge id)kSecUseAuthenticationUISkip
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};
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// Look up service in the keychain
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NSDictionary *found = nil;
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CFTypeRef foundTypeRef = NULL;
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OSStatus osStatus = SecItemCopyMatching((__bridge CFDictionaryRef) query, (CFTypeRef*)&foundTypeRef);
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if (osStatus != noErr && osStatus != errSecItemNotFound) {
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NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
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return rejectWithError(reject, error);
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}
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found = (__bridge NSDictionary*)(foundTypeRef);
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if (!found) {
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return resolve(@(NO));
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}
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// Found
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NSString *username = (NSString *) [found objectForKey:(__bridge id)(kSecAttrAccount)];
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NSString *password = [[NSString alloc] initWithData:[found objectForKey:(__bridge id)(kSecValueData)] encoding:NSUTF8StringEncoding];
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return resolve(@{
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@"service": service,
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@"username": username,
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@"password": password
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});
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}
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RCT_EXPORT_METHOD(resetGenericPasswordForOptions:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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NSString *service = serviceValue(options);
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OSStatus osStatus = [self deletePasswordsForService:service];
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if (osStatus != noErr && osStatus != errSecItemNotFound) {
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NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
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return rejectWithError(reject, error);
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}
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return resolve(@(YES));
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}
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RCT_EXPORT_METHOD(setInternetCredentialsForServer:(NSString *)server withUsername:(NSString*)username withPassword:(NSString*)password withOptions:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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[self deleteCredentialsForServer:server];
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NSDictionary *attributes = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassInternetPassword),
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(__bridge NSString *)kSecAttrServer: server,
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(__bridge NSString *)kSecAttrAccount: username,
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(__bridge NSString *)kSecValueData: [password dataUsingEncoding:NSUTF8StringEncoding],
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(__bridge NSString *)kSecAttrAccessible: (__bridge id)accessibleValue(options)
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};
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[self insertKeychainEntry:attributes withAccessGroup:accessGroupValue(options) resolver:resolve rejecter:reject];
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}
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RCT_EXPORT_METHOD(getInternetCredentialsForServer:(NSString *)server withOptions:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
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{
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// secure compatibility with TouchId / Passcode secured stored items
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// http://stackoverflow.com/questions/42339000/ksecuseauthenticationuiskip-how-to-use-it
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// Silently skip any items that require user authentication. Only use this value with the SecItemCopyMatching function.
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NSDictionary *query = @{
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(__bridge NSString *)kSecClass: (__bridge id)(kSecClassInternetPassword),
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(__bridge NSString *)kSecAttrServer: server,
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(__bridge NSString *)kSecReturnAttributes: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecReturnData: (__bridge id)kCFBooleanTrue,
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(__bridge NSString *)kSecMatchLimit: (__bridge NSString *)kSecMatchLimitOne,
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(__bridge NSString *)kSecUseAuthenticationUI: (__bridge id)kSecUseAuthenticationUISkip
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};
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// Look up server in the keychain
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NSDictionary *found = nil;
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CFTypeRef foundTypeRef = NULL;
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OSStatus osStatus = SecItemCopyMatching((__bridge CFDictionaryRef) query, (CFTypeRef*)&foundTypeRef);
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if (osStatus != noErr && osStatus != errSecItemNotFound) {
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NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
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return rejectWithError(reject, error);
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}
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found = (__bridge NSDictionary*)(foundTypeRef);
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if (!found) {
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return resolve(@(NO));
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}
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// Found
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NSString *username = (NSString *) [found objectForKey:(__bridge id)(kSecAttrAccount)];
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NSString *password = [[NSString alloc] initWithData:[found objectForKey:(__bridge id)(kSecValueData)] encoding:NSUTF8StringEncoding];
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return resolve(@{
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@"server": server,
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@"username": username,
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@"password": password
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});
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}
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RCT_EXPORT_METHOD(resetInternetCredentialsForServer:(NSString *)server withOptions:(NSDictionary *)options resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
|
|
{
|
|
OSStatus osStatus = [self deleteCredentialsForServer:server];
|
|
|
|
if (osStatus != noErr && osStatus != errSecItemNotFound) {
|
|
NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:osStatus userInfo:nil];
|
|
return rejectWithError(reject, error);
|
|
}
|
|
|
|
return resolve(@(YES));
|
|
|
|
}
|
|
|
|
#if TARGET_OS_IOS
|
|
RCT_EXPORT_METHOD(requestSharedWebCredentials:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
|
|
{
|
|
SecRequestSharedWebCredential(NULL, NULL, ^(CFArrayRef credentials, CFErrorRef error) {
|
|
if (error != NULL) {
|
|
NSError *nsError = (__bridge NSError *)error;
|
|
return reject([NSString stringWithFormat:@"%li", (long)nsError.code], nsError.description, nil);
|
|
}
|
|
|
|
if (CFArrayGetCount(credentials) > 0) {
|
|
CFDictionaryRef credentialDict = CFArrayGetValueAtIndex(credentials, 0);
|
|
NSString *server = (__bridge NSString *)CFDictionaryGetValue(credentialDict, kSecAttrServer);
|
|
NSString *username = (__bridge NSString *)CFDictionaryGetValue(credentialDict, kSecAttrAccount);
|
|
NSString *password = (__bridge NSString *)CFDictionaryGetValue(credentialDict, kSecSharedPassword);
|
|
|
|
return resolve(@{
|
|
@"server": server,
|
|
@"username": username,
|
|
@"password": password
|
|
});
|
|
}
|
|
return resolve(@(NO));
|
|
});
|
|
}
|
|
|
|
|
|
RCT_EXPORT_METHOD(setSharedWebCredentialsForServer:(NSString *)server withUsername:(NSString *)username withPassword:(NSString *)password resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)
|
|
{
|
|
SecAddSharedWebCredential(
|
|
(__bridge CFStringRef)server,
|
|
(__bridge CFStringRef)username,
|
|
(__bridge CFStringRef)password,
|
|
^(CFErrorRef error)
|
|
{
|
|
|
|
if (error != NULL) {
|
|
NSError *nsError = (__bridge NSError *)error;
|
|
return reject([NSString stringWithFormat:@"%li", (long)nsError.code], nsError.description, nil);
|
|
}
|
|
|
|
resolve(@(YES));
|
|
});
|
|
}
|
|
#endif
|
|
|
|
@end
|