# Google2FA QRCode
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### QRCode For Google2FA
This is package is [Goole2FA](https://github.com/antonioribeiro/google2fa) integrated with a QRCode generator, providing an easy way to plot QRCode for your two factor authentication. For documentation related to Google2FA, please check the [documentation of the main package](https://github.com/antonioribeiro/google2fa).
## Requirements
- PHP 5.4+
## Installing
Use Composer to install it:
```
composer require pragmarx/google2fa-qrcode
```
## Using It
### Instantiate it directly
```php
use PragmaRX\Google2FAQRCode\Google2FA;
$google2fa = new Google2FA();
return $google2fa->generateSecretKey();
```
## Generating QRCodes
The securer way of creating QRCode is to do it yourself or using a library. First you have to install the BaconQrCode package, as stated above, then you just have to generate the inline string using:
```php
$inlineUrl = $google2fa->getQRCodeInline(
$companyName,
$companyEmail,
$secretKey
);
```
And use it in your blade template this way:
```html
<img src="{{ $inlineUrl }}">
```
```php
$secretKey = $google2fa->generateSecretKey(16, $userId);
```
## Show the QR Code to your user, via Google Apis
It's insecure to use it via Google Apis, so you have to enable it before using it.
```php
$google2fa->setAllowInsecureCallToGoogleApis(true);
$google2fa_url = $google2fa->getQRCodeGoogleUrl(
'YourCompany',
$user->email,
$user->google2fa_secret
);
/// and in your view:
<img src="{{ $google2fa_url }}" alt="">
```
And they should see and scan the QR code to their applications:
And to verify, you just have to:
```php
$secret = $request->input('secret');
$valid = $google2fa->verifyKey($user->google2fa_secret, $secret);
```
## Replacing the QRCode rendering service
If you want to use a different service, you just have to
```php
$google2fa->setQrcodeService(new YourService())
->getQRCodeInline(
$companyName,
$companyEmail,
$secretKey
);
```
## Built-in QRCode rendering services
Beginning on version 2.0 the rendering service is optional, so you have to manually install one of those packages in order to generate QRCodes:
- [BaconQrCode](https://github.com/Bacon/BaconQrCode): renders PNG by default, but requires the Imagick PHP extension. You can configure it to use different backends, but you'll have to instantiate it yourself.
- [chillerlan/php-qrcode](https://github.com/chillerlan/php-qrcode): renders SVG by default and don't require the Imagick PHP extension, but can also generate other formats, which may require Imagick.
## Using a diffent image backend
```php
$google2fa->setQrcodeService(
new \PragmaRX\Google2FAQRCode\QRCode\Bacon(
new \BaconQrCode\Renderer\Image\SvgImageBackEnd()
)
);
// or
$google2fa = new Google2FA(
new Bacon(
new \BaconQrCode\Renderer\Image\SvgImageBackEnd()
)
);
```
## Tests
The package tests were written with [PHPUnit](https://phpunit.de/).
## Authors
- [Antonio Carlos Ribeiro](http://twitter.com/iantonioribeiro)
- [All Contributors](https://github.com/antonioribeiro/google2fa/graphs/contributors)
## License
Google2FAQRCode is licensed under the MIT License - see the [LICENSE](LICENSE.md) file for details.
## Contributing
Pull requests and issues are more than welcome.