init

app/ValidationRules/CronRule.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\ValidationRules;
+
+use Cron\CronExpression;
+use Illuminate\Contracts\Validation\Rule;
+
+class CronRule implements Rule
+{
+    public function passes($attribute, $value): bool
+    {
+        return CronExpression::isValidExpression($value);
+    }
+
+    public function message(): string
+    {
+        return __('Invalid frequency');
+    }
+}

app/ValidationRules/DomainRule.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\ValidationRules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class DomainRule implements Rule
+{
+    public function passes($attribute, $value): bool
+    {
+        if ($value) {
+            return preg_match("/^(?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63}$/", $value);
+        }
+
+        return true;
+    }
+
+    public function message(): string
+    {
+        return __('Domain is not valid');
+    }
+}

app/ValidationRules/RestrictedIPAddressesRule.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\ValidationRules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class RestrictedIPAddressesRule implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        return ! in_array($value, config('core.restricted_ip_addresses'));
+    }
+
+    /**
+     * @return array|\Illuminate\Contracts\Translation\Translator|string|null
+     */
+    public function message()
+    {
+        return __('IP address is restricted.');
+    }
+}

app/ValidationRules/SshKeyRule.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\ValidationRules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class SshKeyRule implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        $key_parts = explode(' ', $value, 3);
+        if (count($key_parts) < 2) {
+            return false;
+        }
+        if (count($key_parts) > 3) {
+            return false;
+        }
+        $algorithm = $key_parts[0];
+        $key = $key_parts[1];
+        if (! in_array($algorithm, ['ssh-rsa', 'ssh-dss'])) {
+            return false;
+        }
+        $key_base64_decoded = base64_decode($key, true);
+        if ($key_base64_decoded == false) {
+            return false;
+        }
+        $check = base64_decode(substr($key, 0, 16));
+        $check = preg_replace("/[^\w\-]/", '', $check);
+        if ((string) $check !== (string) $algorithm) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * @return array|\Illuminate\Contracts\Translation\Translator|string|null
+     */
+    public function message()
+    {
+        return __('Invalid key');
+    }
+}