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			707 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			707 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Invoice Ninja (https://invoiceninja.com).
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 *
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 * @link https://github.com/invoiceninja/invoiceninja source repository
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 *
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 * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
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 *
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 * @license https://www.elastic.co/licensing/elastic-license
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 */
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namespace App\Services\Email;
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use App\DataMapper\Analytics\EmailFailure;
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use App\DataMapper\Analytics\EmailSuccess;
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use App\Events\Invoice\InvoiceWasEmailedAndFailed;
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use App\Events\Payment\PaymentWasEmailedAndFailed;
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use App\Jobs\Util\SystemLogger;
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use App\Libraries\Google\Google;
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use App\Libraries\MultiDB;
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use App\Models\Client;
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use App\Models\Company;
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use App\Models\Invoice;
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use App\Models\Payment;
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use App\Models\SystemLog;
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use App\Models\User;
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use App\Utils\Ninja;
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use App\Utils\Traits\MakesHash;
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use GuzzleHttp\Exception\ClientException;
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use Illuminate\Bus\Queueable;
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use Illuminate\Contracts\Queue\ShouldQueue;
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use Illuminate\Foundation\Bus\Dispatchable;
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use Illuminate\Mail\Mailable;
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use Illuminate\Queue\InteractsWithQueue;
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use Illuminate\Queue\SerializesModels;
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use Illuminate\Support\Facades\Cache;
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use Illuminate\Support\Facades\Mail;
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use Turbo124\Beacon\Facades\LightLogs;
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class AdminEmail implements ShouldQueue
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{
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    use Dispatchable;
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    use InteractsWithQueue;
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    use Queueable;
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    use SerializesModels;
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    use MakesHash;
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    public $tries = 4;
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    public $deleteWhenMissingModels = true;
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    public bool $override;
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    protected ?string $client_postmark_secret = null;
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    protected ?string $client_mailgun_secret = null;
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    protected ?string $client_mailgun_domain = null;
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    protected ?string $client_mailgun_endpoint = null;
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    protected ?string $client_brevo_secret = null;
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    private string $mailer = 'default';
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    public Mailable $mailable;
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    public function __construct(public EmailObject $email_object, public Company $company)
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    {
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    }
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    /**
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     * The backoff time between retries.
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     *
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     * @return array
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     */
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    public function backoff()
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    {
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        return [rand(10, 20), rand(30, 45), rand(60, 79), rand(160, 400)];
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    }
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    public function handle()
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    {
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        MultiDB::setDb($this->company->db);
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        $this->setOverride()
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            ->buildMailable();
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        if ($this->preFlightChecksFail()) {
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            return;
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        }
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        $this->email();
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    }
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    /**
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     * Sets the override flag
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     *
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     * @return self
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     */
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    public function setOverride(): self
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    {
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        $this->override = $this->email_object->override;
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        return $this;
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    }
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    /**
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     * Populates the mailable
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     *
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     * @return self
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     */
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    public function buildMailable(): self
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    {
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        $this->mailable = new AdminEmailMailable($this->email_object);
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        return $this;
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    }
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    /**
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     * Attempts to send the email
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     *
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     * @return void
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     */
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    public function email()
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    {
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        $this->setMailDriver();
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        /* Init the mailer*/
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        $mailer = Mail::mailer($this->mailer);
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        /* Additional configuration if using a client third party mailer */
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        if ($this->client_postmark_secret) {
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            $mailer->postmark_config($this->client_postmark_secret);
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        }
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        if ($this->client_mailgun_secret) {
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            $mailer->mailgun_config($this->client_mailgun_secret, $this->client_mailgun_domain, $this->client_mailgun_endpoint);
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        }
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        if ($this->client_brevo_secret) {
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            $mailer->brevo_config($this->client_brevo_secret);
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        }
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        /* Attempt the send! */
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        try {
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            nlog("Using mailer => " . $this->mailer . " " . now()->toDateTimeString());
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            $mailer->send($this->mailable);
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            Cache::increment("email_quota" . $this->company->account->key);
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            LightLogs::create(new EmailSuccess($this->company->company_key, $this->mailable->subject))
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                ->send();
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        } catch (\Symfony\Component\Mime\Exception\RfcComplianceException $e) {
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            nlog("Mailer failed with a Logic Exception {$e->getMessage()}");
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            $this->fail();
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            $this->cleanUpMailers();
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            $this->logMailError($e->getMessage(), $this->company->clients()->first());
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            return;
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        } catch (\Symfony\Component\Mime\Exception\LogicException $e) {
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            nlog("Mailer failed with a Logic Exception {$e->getMessage()}");
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            $this->fail();
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            $this->cleanUpMailers();
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            $this->logMailError($e->getMessage(), $this->company->clients()->first());
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            return;
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        } catch (\Exception | \RuntimeException | \Google\Service\Exception $e) {
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            nlog("Mailer failed with {$e->getMessage()}");
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            $message = $e->getMessage();
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            if (stripos($e->getMessage(), 'code 406') || stripos($e->getMessage(), 'code 300') || stripos($e->getMessage(), 'code 413')) {
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                $message = "Either Attachment too large, or recipient has been suppressed.";
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                $this->fail();
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                $this->logMailError($e->getMessage(), $this->company->clients()->first());
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                $this->cleanUpMailers();
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                return;
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            }
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            /**
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             * Post mark buries the proper message in a a guzzle response
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             * this merges a text string with a json object
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             * need to harvest the ->Message property using the following
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             */
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            if ($e instanceof ClientException) { //postmark specific failure
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                $response = $e->getResponse();
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                $message_body = json_decode($response->getBody()->getContents());
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                if ($message_body && property_exists($message_body, 'Message')) {
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                    $message = $message_body->Message;
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                    nlog($message);
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                }
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                $this->fail();
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                $this->cleanUpMailers();
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                return;
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            }
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            //only report once, not on all tries
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            if ($this->attempts() == $this->tries) {
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                /* If the is an entity attached to the message send a failure mailer */
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                $this->entityEmailFailed($message);
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                /* Don't send postmark failures to Sentry */
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                if (Ninja::isHosted() && (!$e instanceof ClientException)) {
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                    app('sentry')->captureException($e);
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                }
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            }
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            sleep(rand(0, 3));
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            $this->release($this->backoff()[$this->attempts() - 1]);
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            $message = null;
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        }
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        $this->cleanUpMailers();
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    }
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    /**
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     * On the hosted platform we scan all outbound email for
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     * spam. This sequence processes the filters we use on all
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     * emails.
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     *
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     * @return bool
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     */
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    public function preFlightChecksFail(): bool
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    {
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        /* Always send if disabled */
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        if ($this->override) {
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            return false;
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        }
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        /* If we are migrating data we don't want to fire any emails */
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        if ($this->company->is_disabled) {
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            return true;
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        }
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        if (Ninja::isSelfHost()) {
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            return false;
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        }
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        /* To handle spam users we drop all emails from flagged accounts */
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        if ($this->company->account && $this->company->account->is_flagged) {
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            return true;
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        }
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        /* On the hosted platform we set default contacts a @example.com email address - we shouldn't send emails to these types of addresses */
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        if ($this->hasInValidEmails()) {
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            return true;
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        }
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        /* GMail users are uncapped */
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        if (in_array($this->email_object->settings->email_sending_method, ['gmail', 'office365', 'client_postmark', 'client_mailgun', 'client_brevo'])) {
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            return false;
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        }
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        /* On the hosted platform, if the user is over the email quotas, we do not send the email. */
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        if ($this->company->account && $this->company->account->emailQuotaExceeded()) {
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            return true;
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        }
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        /* If the account is verified, we allow emails to flow */
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        if ($this->company->account && $this->company->account->is_verified_account) {
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            //11-01-2022
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            /* Continue to analyse verified accounts in case they later start sending poor quality emails*/
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            // if(class_exists(\Modules\Admin\Jobs\Account\EmailQuality::class))
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            //     (new \Modules\Admin\Jobs\Account\EmailQuality($this->nmo, $this->company))->run();
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            return false;
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        }
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        /* On the hosted platform if the user has not verified their account we fail here - but still check what they are trying to send! */
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        if ($this->company->account && !$this->company->account->account_sms_verified) {
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            if (class_exists(\Modules\Admin\Jobs\Account\EmailFilter::class)) {
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                return (new \Modules\Admin\Jobs\Account\EmailFilter($this->email_object, $this->company))->run();
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            }
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            return true;
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        }
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        /* On the hosted platform we actively scan all outbound emails to ensure outbound email quality remains high */
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        if (class_exists(\Modules\Admin\Jobs\Account\EmailFilter::class)) {
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            return (new \Modules\Admin\Jobs\Account\EmailFilter($this->email_object, $this->company))->run();
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        }
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        return false;
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    }
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    /**
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     * hasInValidEmails
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     *
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     * @return bool
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     */
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    private function hasInValidEmails(): bool
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    {
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        foreach ($this->email_object->to as $address_object) {
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            if (strpos($address_object->address, '@example.com') !== false) {
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                return true;
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            }
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            if (!str_contains($address_object->address, "@")) {
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                return true;
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            }
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            if ($address_object->address == " ") {
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                return true;
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            }
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        }
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        return false;
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    }
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    /**
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     * Sets the mail driver to use and applies any specific configuration
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     * the the mailable
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     */
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    private function setMailDriver(): self
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    {
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        switch ($this->email_object->settings->email_sending_method) {
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            case 'default':
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                $this->mailer = config('mail.default');
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                break;
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            case 'gmail':
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                $this->mailer = 'gmail';
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                $this->setGmailMailer();
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                return $this;
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            case 'office365':
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            case 'microsoft':
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                $this->mailer = 'office365';
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                $this->setOfficeMailer();
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                return $this;
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            case 'client_postmark':
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                $this->mailer = 'postmark';
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                $this->setPostmarkMailer();
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                return $this;
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            case 'client_mailgun':
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                $this->mailer = 'mailgun';
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                $this->setMailgunMailer();
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                return $this;
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            case 'client_brevo':
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                $this->mailer = 'brevo';
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                $this->setBrevoMailer();
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                return $this;
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            default:
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                $this->mailer = config('mail.default');
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                return $this;
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        }
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        if (Ninja::isSelfHost()) {
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            $this->setSelfHostMultiMailer();
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        }
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        return $this;
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    }
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    /**
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     * Allows configuration of multiple mailers
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     * per company for use by self hosted users
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     */
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    private function setSelfHostMultiMailer(): void
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    {
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        if (env($this->company->id . '_MAIL_HOST')) {
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            config([
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                'mail.mailers.smtp' => [
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                    'transport' => 'smtp',
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                    'host' => env($this->company->id . '_MAIL_HOST'),
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                    'port' => env($this->company->id . '_MAIL_PORT'),
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                    'username' => env($this->company->id . '_MAIL_USERNAME'),
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                    'password' => env($this->company->id . '_MAIL_PASSWORD'),
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                ],
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            ]);
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            if (env($this->company->id . '_MAIL_FROM_ADDRESS')) {
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                $this->mailable
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                    ->from(env($this->company->id . '_MAIL_FROM_ADDRESS', env('MAIL_FROM_ADDRESS')), env($this->company->id . '_MAIL_FROM_NAME', env('MAIL_FROM_NAME')));
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            }
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        }
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    }
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    /**
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     * Ensure we discard any data that is not required
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     *
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     * @return void
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     */
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    private function cleanUpMailers(): void
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    {
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        $this->client_postmark_secret = null;
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        $this->client_mailgun_secret = null;
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        $this->client_mailgun_domain = null;
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        $this->client_mailgun_endpoint = null;
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        $this->client_brevo_secret = null;
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        //always dump the drivers to prevent reuse
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        app('mail.manager')->forgetMailers();
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    }
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    /**
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     * Check to ensure no cross account
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     * emails can be sent.
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     *
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     * @param User $user
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     */
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    private function checkValidSendingUser($user)
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    {
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        /* Always ensure the user is set on the correct account */
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        if ($user->account_id != $this->company->account_id) {
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            $this->email_object->settings->email_sending_method = 'default';
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            return $this->setMailDriver();
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        }
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    }
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    /**
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     * Resolves the sending user
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     * when configuring the Mailer
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     * on behalf of the client
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     *
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     * @return User $user
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     */
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    private function resolveSendingUser(): ?User
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    {
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        $sending_user = $this->email_object->settings->gmail_sending_user_id;
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        if ($sending_user == "0") {
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            $user = $this->company->owner();
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        } else {
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            $user = User::find($this->decodePrimaryKey($sending_user));
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        }
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        return $user;
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    }
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    /**
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     * Configures Mailgun using client supplied secret
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     * as the Mailer
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     */
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    private function setMailgunMailer()
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    {
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        if (strlen($this->email_object->settings->mailgun_secret) > 2 && strlen($this->email_object->settings->mailgun_domain) > 2) {
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            $this->client_mailgun_secret = $this->email_object->settings->mailgun_secret;
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            $this->client_mailgun_domain = $this->email_object->settings->mailgun_domain;
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            $this->client_mailgun_endpoint = $this->email_object->settings->mailgun_endpoint;
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        } else {
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            $this->email_object->settings->email_sending_method = 'default';
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            return $this->setMailDriver();
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        }
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        $user = $this->resolveSendingUser();
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        $sending_email = (isset($this->email_object->settings->custom_sending_email) && stripos($this->email_object->settings->custom_sending_email, "@")) ? $this->email_object->settings->custom_sending_email : $user->email;
 | 
						|
        $sending_user = (isset($this->email_object->settings->email_from_name) && strlen($this->email_object->settings->email_from_name) > 2) ? $this->email_object->settings->email_from_name : $user->name();
 | 
						|
 | 
						|
        $this->mailable
 | 
						|
            ->from($sending_email, $sending_user);
 | 
						|
    }
 | 
						|
    /**
 | 
						|
     * Configures Brevo using client supplied secret
 | 
						|
     * as the Mailer
 | 
						|
     */
 | 
						|
    private function setBrevoMailer()
 | 
						|
    {
 | 
						|
        if (strlen($this->email_object->settings->brevo_secret) > 2) {
 | 
						|
            $this->client_brevo_secret = $this->email_object->settings->brevo_secret;
 | 
						|
 | 
						|
        } else {
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        $user = $this->resolveSendingUser();
 | 
						|
 | 
						|
        $sending_email = (isset($this->email_object->settings->custom_sending_email) && stripos($this->email_object->settings->custom_sending_email, "@")) ? $this->email_object->settings->custom_sending_email : $user->email;
 | 
						|
        $sending_user = (isset($this->email_object->settings->email_from_name) && strlen($this->email_object->settings->email_from_name) > 2) ? $this->email_object->settings->email_from_name : $user->name();
 | 
						|
 | 
						|
        $this->mailable
 | 
						|
            ->from($sending_email, $sending_user);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Configures Postmark using client supplied secret
 | 
						|
     * as the Mailer
 | 
						|
     */
 | 
						|
    private function setPostmarkMailer()
 | 
						|
    {
 | 
						|
        if (strlen($this->email_object->settings->postmark_secret) > 2) {
 | 
						|
            $this->client_postmark_secret = $this->email_object->settings->postmark_secret;
 | 
						|
        } else {
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        $user = $this->resolveSendingUser();
 | 
						|
 | 
						|
        $sending_email = (isset($this->email_object->settings->custom_sending_email) && stripos($this->email_object->settings->custom_sending_email, "@")) ? $this->email_object->settings->custom_sending_email : $user->email;
 | 
						|
        $sending_user = (isset($this->email_object->settings->email_from_name) && strlen($this->email_object->settings->email_from_name) > 2) ? $this->email_object->settings->email_from_name : $user->name();
 | 
						|
 | 
						|
        $this->mailable
 | 
						|
            ->from($sending_email, $sending_user);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Configures Microsoft via Oauth
 | 
						|
     * as the Mailer
 | 
						|
     */
 | 
						|
    private function setOfficeMailer()
 | 
						|
    {
 | 
						|
        $user = $this->resolveSendingUser();
 | 
						|
 | 
						|
        $this->checkValidSendingUser($user);
 | 
						|
 | 
						|
        nlog("Sending via {$user->name()}");
 | 
						|
 | 
						|
        $token = $this->refreshOfficeToken($user);
 | 
						|
 | 
						|
        if ($token) {
 | 
						|
            $user->oauth_user_token = $token;
 | 
						|
            $user->save();
 | 
						|
        } else {
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        $this->mailable
 | 
						|
            ->from($user->email, $user->name())
 | 
						|
            ->withSymfonyMessage(function ($message) use ($token) {
 | 
						|
                $message->getHeaders()->addTextHeader('gmailtoken', $token);
 | 
						|
            });
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Configures GMail via Oauth
 | 
						|
     * as the Mailer
 | 
						|
     */
 | 
						|
    private function setGmailMailer()
 | 
						|
    {
 | 
						|
        $user = $this->resolveSendingUser();
 | 
						|
 | 
						|
        $this->checkValidSendingUser($user);
 | 
						|
 | 
						|
        nlog("Sending via {$user->name()}");
 | 
						|
 | 
						|
        $google = (new Google())->init();
 | 
						|
 | 
						|
        try {
 | 
						|
            if ($google->getClient()->isAccessTokenExpired()) {
 | 
						|
                $google->refreshToken($user);
 | 
						|
                $user = $user->fresh();
 | 
						|
            }
 | 
						|
 | 
						|
            $google->getClient()->setAccessToken(json_encode($user->oauth_user_token));
 | 
						|
        } catch (\Exception $e) {
 | 
						|
            $this->logMailError('Gmail Token Invalid', $this->company->clients()->first());
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        /**
 | 
						|
         * If the user doesn't have a valid token, notify them
 | 
						|
         */
 | 
						|
 | 
						|
        if (!$user->oauth_user_token) {
 | 
						|
            $this->company->account->gmailCredentialNotification();
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        /*
 | 
						|
         *  Now that our token is refreshed and valid we can boot the
 | 
						|
         *  mail driver at runtime and also set the token which will persist
 | 
						|
         *  just for this request.
 | 
						|
         */
 | 
						|
 | 
						|
        $token = $user->oauth_user_token->access_token;
 | 
						|
 | 
						|
        if (!$token) {
 | 
						|
            $this->company->account->gmailCredentialNotification();
 | 
						|
            $this->email_object->settings->email_sending_method = 'default';
 | 
						|
            return $this->setMailDriver();
 | 
						|
        }
 | 
						|
 | 
						|
        $this->mailable
 | 
						|
            ->from($user->email, $user->name())
 | 
						|
            ->withSymfonyMessage(function ($message) use ($token) {
 | 
						|
                $message->getHeaders()->addTextHeader('gmailtoken', $token);
 | 
						|
            });
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Logs any errors to the SystemLog
 | 
						|
     *
 | 
						|
     * @param  string $errors
 | 
						|
     * @param  null | \App\Models\Client $recipient_object
 | 
						|
     * @return void
 | 
						|
     */
 | 
						|
    private function logMailError($errors, $recipient_object): void
 | 
						|
    {
 | 
						|
        (
 | 
						|
            new SystemLogger(
 | 
						|
                $errors,
 | 
						|
                SystemLog::CATEGORY_MAIL,
 | 
						|
                SystemLog::EVENT_MAIL_SEND,
 | 
						|
                SystemLog::TYPE_FAILURE,
 | 
						|
                $recipient_object,
 | 
						|
                $this->company
 | 
						|
            )
 | 
						|
        )->handle();
 | 
						|
 | 
						|
        $job_failure = new EmailFailure($this->company->company_key);
 | 
						|
        $job_failure->string_metric5 = 'failed_email';
 | 
						|
        $job_failure->string_metric6 = substr($errors, 0, 150);
 | 
						|
 | 
						|
        LightLogs::create($job_failure)
 | 
						|
            ->send();
 | 
						|
 | 
						|
        $job_failure = null;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Attempts to refresh the Microsoft refreshToken
 | 
						|
     *
 | 
						|
     * @param \App\Models\User $user
 | 
						|
     * @return mixed
 | 
						|
     */
 | 
						|
    private function refreshOfficeToken(User $user): mixed
 | 
						|
    {
 | 
						|
        $expiry = $user->oauth_user_token_expiry ?: now()->subDay();
 | 
						|
 | 
						|
        if ($expiry->lt(now())) {
 | 
						|
            $guzzle = new \GuzzleHttp\Client();
 | 
						|
            $url = 'https://login.microsoftonline.com/common/oauth2/v2.0/token';
 | 
						|
 | 
						|
            $token = json_decode($guzzle->post($url, [
 | 
						|
                'form_params' => [
 | 
						|
                    'client_id' => config('ninja.o365.client_id'),
 | 
						|
                    'client_secret' => config('ninja.o365.client_secret'),
 | 
						|
                    'scope' => 'email Mail.Send offline_access profile User.Read openid',
 | 
						|
                    'grant_type' => 'refresh_token',
 | 
						|
                    'refresh_token' => $user->oauth_user_refresh_token
 | 
						|
                ],
 | 
						|
            ])->getBody()->getContents());
 | 
						|
 | 
						|
            if ($token) {
 | 
						|
                $user->oauth_user_refresh_token = property_exists($token, 'refresh_token') ? $token->refresh_token : $user->oauth_user_refresh_token;
 | 
						|
                $user->oauth_user_token = $token->access_token;
 | 
						|
                $user->oauth_user_token_expiry = now()->addSeconds($token->expires_in);
 | 
						|
                $user->save();
 | 
						|
 | 
						|
                return $token->access_token;
 | 
						|
            }
 | 
						|
 | 
						|
            return false;
 | 
						|
        }
 | 
						|
 | 
						|
        return $user->oauth_user_token;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Entity notification when an email fails to send
 | 
						|
     *
 | 
						|
     * @param  string $message
 | 
						|
     * @return void
 | 
						|
     */
 | 
						|
    private function entityEmailFailed($message): void
 | 
						|
    {
 | 
						|
        $class = get_class($this->email_object->entity);
 | 
						|
 | 
						|
        switch ($class) {
 | 
						|
            case Invoice::class:
 | 
						|
                event(new InvoiceWasEmailedAndFailed($this->email_object->invitation, $this->company, $message, $this->email_object->html_template, Ninja::eventVars(auth()->user() ? auth()->user()->id : null)));
 | 
						|
                break;
 | 
						|
            case Payment::class:
 | 
						|
                event(new PaymentWasEmailedAndFailed($this->email_object->entity, $this->company, $message, Ninja::eventVars(auth()->user() ? auth()->user()->id : null)));
 | 
						|
                break;
 | 
						|
            default:
 | 
						|
                # code...
 | 
						|
                break;
 | 
						|
        }
 | 
						|
 | 
						|
        if ($this->email_object->client) {
 | 
						|
            $this->logMailError($message, $this->email_object->client);
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
 | 
						|
    public function failed($exception = null)
 | 
						|
    {
 | 
						|
        if ($exception) {
 | 
						|
            nlog($exception->getMessage());
 | 
						|
        }
 | 
						|
 | 
						|
        config(['queue.failed.driver' => null]);
 | 
						|
    }
 | 
						|
}
 |