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IOS: added 'Face id' or 'Touch id' detection support #36

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IOS: added 'Face id' or 'Touch id' detection support #36

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9eca8b5
IOS: added 'Face id' or 'Touch id' support
vdpdev Mar 13, 2018
56a2c10
Description of 'isAvailable' function updated in 'readme.md' file
vdpdev Mar 14, 2018
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8 changes: 4 additions & 4 deletions readme.md
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,7 @@ if (window.plugins.touchid) {

Call the function you like

**isAvailable(successCallback, errorCallback(msg))** will Check if touchid is available on the used device
**isAvailable(successCallback(type), errorCallback(msg))** will Check if touchid is available on the used device and pass biometric type to success callback (`touch` or `face`)

**save(key,password, successCallback, errorCallback(msg))**
will save a password under the key in the device keychain, which can be retrieved using a fingerprint
Expand Down Expand Up @@ -92,11 +92,11 @@ This invalid key is removed - user needs to **save their password again**.

```js
if (window.plugins) {
window.plugins.touchid.isAvailable(function() {
window.plugins.touchid.isAvailable(function(type) {
window.plugins.touchid.has("MyKey", function() {
alert("Touch ID avaialble and Password key available");
alert(type + " ID avaialble and Password key available");
}, function() {
alert("Touch ID available but no Password Key available");
alert(type + " ID available but no Password Key available");
});
}, function(msg) {
alert("no Touch ID available");
Expand Down
36 changes: 26 additions & 10 deletions src/ios/TouchID.m
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Expand Up @@ -24,17 +24,33 @@ Licensed to the Apache Software Foundation (ASF) under one

@implementation TouchID

- (void)isAvailable:(CDVInvokedUrlCommand*)command{
self.laContext = [[LAContext alloc] init];
BOOL touchIDAvailable = [self.laContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:nil];
if(touchIDAvailable){
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
}
else{
CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString: @"Touch ID not available"];
[self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
- (void) isAvailable:(CDVInvokedUrlCommand*)command {

if (NSClassFromString(@"LAContext") == NULL) {
[self.commandDelegate sendPluginResult:[CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR] callbackId:command.callbackId];
return;
}

[self.commandDelegate runInBackground:^{

NSError *error = nil;
LAContext *laContext = [[LAContext alloc] init];

if ([laContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
NSString *biometryType = @"touch";
if (@available(iOS 11.0, *)) {
if (laContext.biometryType == LABiometryTypeFaceID) {
biometryType = @"face";
}
}
[self.commandDelegate sendPluginResult:[CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsString:biometryType]
callbackId:command.callbackId];
} else {
NSArray *errorKeys = @[@"code", @"localizedDescription"];
[self.commandDelegate sendPluginResult:[CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:[error dictionaryWithValuesForKeys:errorKeys]]
callbackId:command.callbackId];
}
}];
}

- (void)setLocale:(CDVInvokedUrlCommand*)command{
Expand Down