Initial commit

application/Espo/Classes/FieldValidators/Email/Addresses/MaxCount.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Classes\FieldValidators\Email\Addresses;
+
+use Espo\Core\FieldValidation\Validator;
+use Espo\Core\FieldValidation\Validator\Data;
+use Espo\Core\FieldValidation\Validator\Failure;
+use Espo\Core\Utils\Config;
+use Espo\Entities\Email;
+use Espo\ORM\Entity;
+
+use LogicException;
+
+/**
+ * @implements Validator<Email>
+ */
+class MaxCount implements Validator
+{
+    private const MAX_COUNT = 100;
+
+    public function __construct(private Config $config) {}
+
+    /**
+     * @param Email $entity
+     */
+    public function validate(Entity $entity, string $field, Data $data): ?Failure
+    {
+        if ($field === 'to') {
+            $addresses = $entity->getToAddressList();
+        } else if ($field === 'cc') {
+            $addresses = $entity->getCcAddressList();
+        } else if ($field === 'bcc') {
+            $addresses = $entity->getBccAddressList();
+        } else {
+            throw new LogicException();
+        }
+
+        $maxCount = $this->config->get('emailRecipientAddressMaxCount') ?? self::MAX_COUNT;
+
+        if (count($addresses) > $maxCount) {
+            return Failure::create();
+        }
+
+        return null;
+    }
+}

application/Espo/Classes/FieldValidators/Email/Addresses/Valid.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Classes\FieldValidators\Email\Addresses;
+
+use Espo\Core\FieldValidation\Validator;
+use Espo\Core\FieldValidation\Validator\Data;
+use Espo\Core\FieldValidation\Validator\Failure;
+use Espo\ORM\Entity;
+use Espo\Entities\Email;
+
+use LogicException;
+
+/**
+ * @implements Validator<Email>
+ */
+class Valid implements Validator
+{
+    /**
+     * @param Email $entity
+     */
+    public function validate(Entity $entity, string $field, Data $data): ?Failure
+    {
+        if ($field === 'to') {
+            $addresses = $entity->getToAddressList();
+        } else if ($field === 'cc') {
+            $addresses = $entity->getCcAddressList();
+        } else if ($field === 'bcc') {
+            $addresses = $entity->getBccAddressList();
+        } else {
+            throw new LogicException();
+        }
+
+        foreach ($addresses as $address) {
+            if (!filter_var($address, FILTER_VALIDATE_EMAIL)) {
+                return Failure::create();
+            }
+        }
+
+        return null;
+    }
+}

application/Espo/Classes/FieldValidators/Email/EmailAddresses.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Classes\FieldValidators\Email;
+
+use Espo\Entities\Email;
+use Espo\ORM\Entity;
+
+class EmailAddresses
+{
+    /**
+     * @param Email $entity
+     */
+    public function checkRequired(Entity $entity, string $field): bool
+    {
+        if ($entity->getStatus() === Email::STATUS_DRAFT) {
+            return true;
+        }
+
+        return $this->isNotEmpty($entity, $field);
+    }
+
+    private function isNotEmpty(Entity $entity, string $field): bool
+    {
+        return $entity->has($field) && $entity->get($field) !== '' && $entity->get($field) !== null;
+    }
+}

application/Espo/Classes/FieldValidators/Email/SendAt/Future.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Classes\FieldValidators\Email\SendAt;
+
+use Espo\Core\Field\DateTime;
+use Espo\Core\FieldValidation\Validator;
+use Espo\Core\FieldValidation\Validator\Data;
+use Espo\Core\FieldValidation\Validator\Failure;
+use Espo\Entities\Email;
+use Espo\ORM\Entity;
+
+/**
+ * @implements Validator<Email>
+ */
+class Future implements Validator
+{
+    public function validate(Entity $entity, string $field, Data $data): ?Failure
+    {
+        $value = $entity->getSendAt();
+
+        if (!$value) {
+            return null;
+        }
+
+        if ($value->isLessThan(DateTime::createNow())) {
+            return Failure::create();
+        }
+
+        return null;
+    }
+}