mirror of https://github.com/Bubka/2FAuth.git
738 lines
22 KiB
PHP
738 lines
22 KiB
PHP
<?php
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namespace App\Models;
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use App\Events\TwoFAccountDeleted;
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use App\Exceptions\InvalidOtpParameterException;
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use App\Exceptions\InvalidSecretException;
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use App\Exceptions\UndecipherableException;
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use App\Exceptions\UnsupportedOtpTypeException;
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use App\Facades\Settings;
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use App\Helpers\Helpers;
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use App\Models\Dto\HotpDto;
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use App\Models\Dto\TotpDto;
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use App\Services\LogoService;
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use Exception;
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use Illuminate\Database\Eloquent\Factories\HasFactory;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Facades\App;
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use Illuminate\Support\Facades\Auth;
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use Illuminate\Support\Facades\Crypt;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Facades\Log;
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use Illuminate\Support\Facades\Storage;
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use Illuminate\Support\Facades\Validator;
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use Illuminate\Support\Str;
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use Illuminate\Validation\ValidationException;
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use OTPHP\Factory;
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use OTPHP\HOTP;
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use OTPHP\TOTP;
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use ParagonIE\ConstantTime\Base32;
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use Spatie\EloquentSortable\Sortable;
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use Spatie\EloquentSortable\SortableTrait;
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use SteamTotp\SteamTotp;
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/**
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* App\Models\TwoFAccount
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*
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* @property int $id
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* @property string|null $service
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* @property string $legacy_uri
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* @property string $account
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* @property string|null $icon
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* @property \Illuminate\Support\Carbon|null $created_at
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* @property \Illuminate\Support\Carbon|null $updated_at
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* @property int|null $order_column
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* @property int|null $group_id
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* @property string $otp_type
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* @property string $secret
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* @property string $algorithm
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* @property int $digits
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* @property int|null $period
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* @property int|null $counter
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* @property int|null $user_id
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* @property-read \App\Models\User|null $user
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*/
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class TwoFAccount extends Model implements Sortable
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{
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use SortableTrait, HasFactory;
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const TOTP = 'totp';
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const HOTP = 'hotp';
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const STEAM_TOTP = 'steamtotp';
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const SHA1 = 'sha1';
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const MD5 = 'md5';
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const SHA256 = 'sha256';
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const SHA512 = 'sha512';
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const DEFAULT_PERIOD = 30;
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const DEFAULT_COUNTER = 0;
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const DEFAULT_DIGITS = 6;
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const DEFAULT_ALGORITHM = self::SHA1;
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const DUPLICATE_ID = -1;
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const FAKE_ID = -2;
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/**
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* List of OTP types supported by 2FAuth
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*/
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private array $generatorClassMap = [
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'OTPHP\TOTP' => self::TOTP,
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'OTPHP\HOTP' => self::HOTP,
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];
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/**
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* model's array form.
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*
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* @var string[]
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*/
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protected $fillable = [
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// 'service',
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// 'account',
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// 'otp_type',
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// 'digits',
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// 'secret',
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// 'algorithm',
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// 'counter',
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// 'period',
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// 'icon'
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];
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/**
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* The table associated with the model.
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*
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* @var string
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*/
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protected $table = 'twofaccounts';
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/**
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* The accessors to append to the model's array form.
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*
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* @var array
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*/
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public $appends = [];
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/**
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* The model's default values for attributes.
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*
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* @var array
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*/
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protected $attributes = [
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'digits' => 6,
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'algorithm' => self::SHA1,
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];
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/**
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* The attributes that should be hidden for arrays.
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*
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* @var array<int, string>
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*/
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protected $hidden = [];
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/**
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* The attributes that should be cast.
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*
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* @var array<string, string>
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*/
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protected $casts = [];
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/**
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* The event map for the model.
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*
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* @var array
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*/
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protected $dispatchesEvents = [
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'deleted' => TwoFAccountDeleted::class,
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];
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/**
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* Override The "booting" method of the model
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*
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* @return void
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*/
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protected static function boot()
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{
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parent::boot();
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static::saving(function (TwoFAccount $twofaccount) {
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if (! $twofaccount->legacy_uri) {
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$twofaccount->legacy_uri = $twofaccount->getURI();
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}
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if ($twofaccount->otp_type == TwoFAccount::TOTP && ! $twofaccount->period) {
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$twofaccount->period = TwoFAccount::DEFAULT_PERIOD;
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}
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if ($twofaccount->otp_type == TwoFAccount::HOTP && ! $twofaccount->counter) {
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$twofaccount->counter = TwoFAccount::DEFAULT_COUNTER;
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}
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});
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// static::deleted(function ($model) {
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// Log::info(sprintf('TwoFAccount #%d deleted', $model->id));
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// });
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}
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/**
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* Settings for @spatie/eloquent-sortable package
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*
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* @var array
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*/
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public $sortable = [
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'order_column_name' => 'order_column',
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'sort_when_creating' => true,
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];
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/**
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* The OTP generator.
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* Instanciated as null to keep the model light
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*
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* @var \OTPHP\OTPInterface|null
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*/
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protected $generator = null;
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/**
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* Get the user that owns the twofaccount.
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*
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* @return \Illuminate\Database\Eloquent\Relations\BelongsTo<\App\Models\User, \App\Models\TwoFAccount>
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*/
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public function user()
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{
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return $this->belongsTo(\App\Models\User::class);
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}
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/**
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* Get legacy_uri attribute
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*
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* @param string $value
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* @return string
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*/
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public function getLegacyUriAttribute($value)
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{
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return $this->decryptOrReturn($value);
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}
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/**
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* Set legacy_uri attribute
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*
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* @param string $value
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* @return void
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*/
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public function setLegacyUriAttribute($value)
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{
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// Encrypt if needed
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$this->attributes['legacy_uri'] = $this->encryptOrReturn($value);
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}
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/**
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* Get account attribute
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*
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* @param string $value
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* @return string
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*/
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public function getAccountAttribute($value)
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{
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return $this->decryptOrReturn($value);
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}
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/**
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* Set account attribute
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*
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* @param string $value
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* @return void
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*/
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public function setAccountAttribute($value)
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{
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// Encrypt when needed
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$this->attributes['account'] = $this->encryptOrReturn($value);
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}
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/**
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* Get secret attribute
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*
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* @param string $value
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* @return string
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*/
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public function getSecretAttribute($value)
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{
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return $this->decryptOrReturn($value);
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}
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/**
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* Set secret attribute
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*
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* @param string $value
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* @return void
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*/
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public function setSecretAttribute($value)
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{
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// Encrypt when needed
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$this->attributes['secret'] = $this->encryptOrReturn(Helpers::PadToBase32Format($value));
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}
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/**
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* Set digits attribute
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*
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* @param string $value
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* @return void
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*/
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public function setDigitsAttribute($value)
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{
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$this->attributes['digits'] = ! $value ? 6 : $value;
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}
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/**
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* Set algorithm attribute
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*
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* @param string $value
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* @return void
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*/
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public function setAlgorithmAttribute($value)
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{
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$this->attributes['algorithm'] = ! $value ? self::SHA1 : strtolower($value);
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}
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/**
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* Set period attribute
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*
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* @param string $value
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* @return void
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*/
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public function setPeriodAttribute($value)
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{
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$this->attributes['period'] = ! $value && $this->otp_type === self::TOTP ? self::DEFAULT_PERIOD : $value;
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}
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/**
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* Set counter attribute
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*
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* @param string $value
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* @return void
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*/
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public function setCounterAttribute($value)
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{
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$this->attributes['counter'] = blank($value) && $this->otp_type === self::HOTP ? self::DEFAULT_COUNTER : $value;
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}
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/**
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* Returns a One-Time Password with its parameters
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*
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* @return TotpDto|HotpDto
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*
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* @throws InvalidSecretException The secret is not a valid base32 encoded string
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* @throws UndecipherableException The secret cannot be deciphered
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* @throws UnsupportedOtpTypeException The defined OTP type is not supported
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* @throws InvalidOtpParameterException One OTP parameter is invalid
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*/
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public function getOTP()
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{
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Log::info(sprintf('OTP requested for TwoFAccount (%s)', $this->id ? 'id:' . $this->id : 'preview'));
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// Early exit if the model has an undecipherable secret
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if (strtolower($this->secret) === __('errors.indecipherable')) {
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Log::error('Secret cannot be deciphered, OTP generation aborted');
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throw new UndecipherableException();
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}
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$this->initGenerator();
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try {
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if ($this->otp_type === self::HOTP) {
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$OtpDto = new HotpDto();
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$OtpDto->otp_type = $this->otp_type;
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$counter = $this->generator->getParameter('counter');
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$OtpDto->password = $this->generator->at($counter);
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$OtpDto->counter = $this->counter = $counter + 1;
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// The updated HOTP counter must be saved to db for persisted account only
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if ($this->id) {
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$this->save();
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}
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} else {
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$OtpDto = new TotpDto();
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$OtpDto->otp_type = $this->otp_type;
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$OtpDto->generated_at = time();
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$OtpDto->password = $this->otp_type === self::TOTP
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? $this->generator->at($OtpDto->generated_at)
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: SteamTotp::getAuthCode(base64_encode(Base32::decodeUpper($this->secret)));
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$OtpDto->period = $this->period;
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}
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Log::info(sprintf('New OTP generated for TwoFAccount (%s)', $this->id ? 'id:' . $this->id : 'preview'));
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return $OtpDto;
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} catch (\Exception | \Throwable $ex) {
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Log::error('An error occured, OTP generation aborted');
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// Currently a secret issue is the only possible exception thrown by OTPHP for this stack
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// so it is Ok to send the corresponding 2FAuth exception.
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// If the generator package change it could be necessary to throw a more generic exception.
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throw new InvalidSecretException($ex->getMessage());
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}
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}
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/**
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* Fill the model using an array of OTP parameters.
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* Missing parameters will be set with default values
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*
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* @return $this
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*/
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public function fillWithOtpParameters(array $parameters, bool $skipIconFetching = false)
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{
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$this->otp_type = strtolower(Arr::get($parameters, 'otp_type'));
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$this->account = Arr::get($parameters, 'account');
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$this->service = Arr::get($parameters, 'service');
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$this->icon = Arr::get($parameters, 'icon');
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$this->secret = Arr::get($parameters, 'secret');
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$this->algorithm = strtolower(Arr::get($parameters, 'algorithm', self::SHA1));
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$this->digits = Arr::get($parameters, 'digits', self::DEFAULT_DIGITS);
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$this->period = Arr::get($parameters, 'period', $this->otp_type == self::TOTP ? self::DEFAULT_PERIOD : null);
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$this->counter = Arr::get($parameters, 'counter', $this->otp_type == self::HOTP ? self::DEFAULT_COUNTER : null);
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$this->initGenerator();
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// The generator could have been initialized without a secret, in that case it generates one on the fly.
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// The secret attribute has thus to be updated
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$this->secret = $this->secret ?: $this->generator->getSecret();
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if ($this->otp_type === self::STEAM_TOTP || strtolower($this->service) === 'steam') {
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$this->enforceAsSteam();
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}
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if (! $this->icon && Auth::user()->preferences['getOfficialIcons'] && ! $skipIconFetching) {
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$this->icon = $this->getDefaultIcon();
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}
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Log::info(sprintf('TwoFAccount filled with OTP parameters'));
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return $this;
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}
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/**
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* Fill the model by parsing an otpauth URI
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*
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* @return $this
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*/
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public function fillWithURI(string $uri, bool $isSteamTotp = false, bool $skipIconFetching = false)
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{
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// First we instanciate the OTP generator
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try {
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$this->generator = Factory::loadFromProvisioningUri($isSteamTotp ? str_replace('otpauth://steam', 'otpauth://totp', $uri) : $uri);
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} catch (\Assert\AssertionFailedException|\Assert\InvalidArgumentException|\Exception|\Throwable $ex) {
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throw ValidationException::withMessages([
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'uri' => __('validation.custom.uri.regex', ['attribute' => 'uri']),
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]);
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}
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// As loadFromProvisioningUri() accept URI without label (nor account nor service) we check
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// that the account is set
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if (! $this->generator->getLabel()) {
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Log::error('URI passed to fillWithURI() must contain a label');
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throw ValidationException::withMessages([
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'label' => __('validation.custom.label.required'),
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]);
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}
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$this->otp_type = $this->getGeneratorOtpType();
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$this->account = $this->generator->getLabel();
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$this->secret = $this->generator->getSecret();
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$this->service = $this->generator->getIssuer();
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$this->algorithm = $this->generator->getDigest();
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$this->digits = $this->generator->getDigits();
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$this->period = $this->generator->hasParameter('period') ? $this->generator->getParameter('period') : null;
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$this->counter = $this->generator->hasParameter('counter') ? $this->generator->getParameter('counter') : null;
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$this->legacy_uri = $uri;
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if ($isSteamTotp || strtolower($this->service) === 'steam') {
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$this->enforceAsSteam();
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}
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if ($this->generator->hasParameter('image')) {
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self::setIcon($this->generator->getParameter('image'));
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}
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if (! $this->icon && Auth::user()->preferences['getOfficialIcons'] && ! $skipIconFetching) {
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$this->icon = $this->getDefaultIcon();
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}
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Log::info(sprintf('TwoFAccount filled with an URI'));
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return $this;
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}
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/**
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* Compare 2 TwoFAccounts
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*/
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public function equals(self $other) : bool
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{
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return $this->service === $other->service &&
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$this->account === $other->account &&
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$this->icon === $other->icon &&
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$this->otp_type === $other->otp_type &&
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$this->secret === $other->secret &&
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$this->digits === $other->digits &&
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$this->algorithm === $other->algorithm &&
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$this->period === $other->period &&
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$this->counter === $other->counter;
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}
|
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|
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/**
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* Sets model attributes to STEAM values
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*/
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private function enforceAsSteam() : void
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{
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$this->otp_type = self::STEAM_TOTP;
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$this->service = 'Steam';
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$this->digits = 5;
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$this->algorithm = self::SHA1;
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$this->period = 30;
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Log::info(sprintf('TwoFAccount configured as Steam account'));
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}
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/**
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* Returns the OTP type of the instanciated OTP generator
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*
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* @return mixed
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*/
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private function getGeneratorOtpType()
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{
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return Arr::get($this->generatorClassMap, get_class($this->generator));
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}
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|
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/**
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* Returns an otpauth URI built with model attribute values
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*/
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public function getURI() : string
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{
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$this->initGenerator();
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return $this->generator->getProvisioningUri();
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}
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|
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/**
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* Instanciates the OTP generator with model attribute values
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*
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* @throws UnsupportedOtpTypeException The defined OTP type is not supported
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* @throws InvalidOtpParameterException One OTP parameter is invalid
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*/
|
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private function initGenerator() : void
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{
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try {
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switch ($this->otp_type) {
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case self::TOTP:
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$this->generator = TOTP::create(
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$this->secret,
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$this->period ?: self::DEFAULT_PERIOD,
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$this->algorithm ?: self::DEFAULT_ALGORITHM,
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$this->digits ?: self::DEFAULT_DIGITS
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);
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break;
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case self::STEAM_TOTP:
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$this->generator = TOTP::create($this->secret, 30, self::SHA1, 5);
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break;
|
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|
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case self::HOTP:
|
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$this->generator = HOTP::create(
|
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$this->secret,
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$this->counter ?: self::DEFAULT_COUNTER,
|
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$this->algorithm ?: self::DEFAULT_ALGORITHM,
|
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$this->digits ?: self::DEFAULT_DIGITS
|
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);
|
|
break;
|
|
|
|
default:
|
|
throw new UnsupportedOtpTypeException();
|
|
}
|
|
|
|
if ($this->service) {
|
|
$this->generator->setIssuer($this->service);
|
|
}
|
|
if ($this->account) {
|
|
$this->generator->setLabel($this->account);
|
|
}
|
|
} catch (UnsupportedOtpTypeException $exception) {
|
|
Log::error(sprintf('%s is not an OTP type supported by the current generator', $this->otp_type));
|
|
throw $exception;
|
|
} catch (\Exception | \Throwable $exception) {
|
|
throw new InvalidOtpParameterException($exception->getMessage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Store and set the provided icon
|
|
*
|
|
* @param \Psr\Http\Message\StreamInterface|\Illuminate\Http\File|\Illuminate\Http\UploadedFile|string|resource $data
|
|
* @param string|null $extension The resource extension, without the dot
|
|
*/
|
|
public function setIcon($data, $extension = null) : void
|
|
{
|
|
$isRemoteData = Str::startsWith($data, ['http://', 'https://']) && Validator::make(
|
|
[$data],
|
|
['url']
|
|
)->passes();
|
|
|
|
if ($isRemoteData) {
|
|
$icon = $this->storeRemoteImageAsIcon($data);
|
|
} else {
|
|
$icon = $extension ? $this->storeFileDataAsIcon($data, $extension) : null;
|
|
}
|
|
|
|
$this->icon = $icon ?: $this->icon;
|
|
}
|
|
|
|
/**
|
|
* Store img data as an icon file.
|
|
*
|
|
* @param \Psr\Http\Message\StreamInterface|\Illuminate\Http\File|\Illuminate\Http\UploadedFile|string|resource $content
|
|
* @param string $extension The file extension, without the dot
|
|
* @return string|null The filename of the stored icon or null if the operation fails
|
|
*/
|
|
private function storeFileDataAsIcon($content, $extension) : string|null
|
|
{
|
|
$filename = self::getUniqueFilename($extension);
|
|
|
|
if (Storage::disk('icons')->put($filename, $content)) {
|
|
if (self::isValidIcon($filename, 'icons')) {
|
|
Log::info(sprintf('Image "%s" successfully stored for import', $filename));
|
|
|
|
return $filename;
|
|
} else {
|
|
Storage::disk('icons')->delete($filename);
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Generate a unique filename
|
|
*
|
|
* @param string $extension
|
|
* @return string The filename
|
|
*/
|
|
private function getUniqueFilename(string $extension) : string
|
|
{
|
|
return Str::random(40) . '.' . $extension;
|
|
}
|
|
|
|
/**
|
|
* Validate a file is a valid image
|
|
*
|
|
* @param string $filename
|
|
* @param string $disk
|
|
* @return bool
|
|
*/
|
|
private function isValidIcon($filename, $disk) : bool
|
|
{
|
|
return in_array(Storage::disk($disk)->mimeType($filename), [
|
|
'image/png',
|
|
'image/jpeg',
|
|
'image/webp',
|
|
'image/bmp',
|
|
'image/x-ms-bmp',
|
|
'image/svg+xml',
|
|
]) && (Storage::disk($disk)->mimeType($filename) !== 'image/svg+xml' ? getimagesize(Storage::disk($disk)->path($filename)) : true);
|
|
}
|
|
|
|
/**
|
|
* Gets the image resource pointed by the image url and store it as an icon
|
|
*
|
|
* @return string|null The filename of the stored icon or null if the operation fails
|
|
*/
|
|
private function storeRemoteImageAsIcon(string $url) : string|null
|
|
{
|
|
try {
|
|
$path_parts = pathinfo($url);
|
|
$newFilename = self::getUniqueFilename($path_parts['extension']);
|
|
|
|
try {
|
|
$response = Http::retry(3, 100)->get($url);
|
|
|
|
if ($response->successful()) {
|
|
Storage::disk('imagesLink')->put($newFilename, $response->body());
|
|
}
|
|
} catch (\Exception $exception) {
|
|
Log::error(sprintf('Cannot fetch imageLink at "%s"', $url));
|
|
}
|
|
|
|
if (self::isValidIcon($newFilename, 'imagesLink')) {
|
|
// Should be a valid image, we move it to the icons disk
|
|
if (Storage::disk('icons')->put($newFilename, Storage::disk('imagesLink')->get($newFilename))) {
|
|
Storage::disk('imagesLink')->delete($newFilename);
|
|
}
|
|
|
|
Log::info(sprintf('Icon file "%s" stored', $newFilename));
|
|
} else {
|
|
Storage::disk('imagesLink')->delete($newFilename);
|
|
throw new \Exception('Unsupported mimeType or missing image on storage');
|
|
}
|
|
|
|
return Storage::disk('icons')->exists($newFilename) ? $newFilename : null;
|
|
}
|
|
// @codeCoverageIgnoreStart
|
|
catch (\Exception | \Throwable $ex) {
|
|
Log::error(sprintf('Icon storage failed: %s', $ex->getMessage()));
|
|
|
|
return null;
|
|
}
|
|
// @codeCoverageIgnoreEnd
|
|
}
|
|
|
|
/**
|
|
* Fetch a logo in the tfa directory and store it as a new stand alone icon
|
|
*
|
|
* @return string|null The icon
|
|
*/
|
|
private function getDefaultIcon()
|
|
{
|
|
$logoService = App::make(LogoService::class);
|
|
|
|
return Auth::user()->preferences['getOfficialIcons'] ? $logoService->getIcon($this->service) : null;
|
|
}
|
|
|
|
/**
|
|
* Returns an acceptable value
|
|
*/
|
|
private function decryptOrReturn(mixed $value) : mixed
|
|
{
|
|
// Decipher when needed
|
|
if (Settings::get('useEncryption') && $value) {
|
|
try {
|
|
return Crypt::decryptString($value);
|
|
} catch (Exception $ex) {
|
|
return __('errors.indecipherable');
|
|
}
|
|
} else {
|
|
return $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Encrypt a value
|
|
*/
|
|
private function encryptOrReturn(mixed $value) : mixed
|
|
{
|
|
// should be replaced by laravel 8 attribute encryption casting
|
|
return Settings::get('useEncryption') ? Crypt::encryptString($value) : $value;
|
|
}
|
|
|
|
/**
|
|
* @return \Illuminate\Database\Eloquent\Builder<TwoFAccount>
|
|
*/
|
|
public function buildSortQuery()
|
|
{
|
|
return static::query()->where('user_id', $this->user_id);
|
|
}
|
|
}
|