Add support for Redis in addition to System V queues

controllers/internals/Mailer.php

@@ -117,11 +117,10 @@ class Mailer extends \descartes\Controller
             'attachments' => $attachments,
         ];
 
-        $error_code = null;
+        $queue = new Queue(QUEUE_ID_EMAIL);
-        $queue = msg_get_queue(QUEUE_ID_EMAIL);
+        $queue->push(json_encode($message), QUEUE_TYPE_EMAIL);
-        $success = msg_send($queue, QUEUE_TYPE_EMAIL, $message, true, true, $error_code);
 
-        return (bool) $success;
+        return true;
     }
 
     /**

controllers/internals/Queue.php

@@ -0,0 +1,86 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace controllers\internals;
+
+use Exception;
+use models\RedisQueue;
+use models\SystemVQueue;
+
+class Queue extends \descartes\InternalController
+{
+    private $queue;
+
+    /**
+     * A class to interact with queue, the class is in charge to choose the type of queue (redis/system v) to use
+     */
+    public function __construct($id)
+    {
+        if (USE_REDIS_QUEUES ?? false)
+        {
+            $params = [];
+            if (REDIS_HOST ?? false)
+            {
+                $params['host'] = REDIS_HOST;
+            }
+
+            if (REDIS_PORT ?? false)
+            {
+                $params['port'] = REDIS_PORT;
+            }
+
+            if (REDIS_PASSWORD ?? false)
+            {
+                $params['auth'] = REDIS_PASSWORD;
+            }
+
+            $this->queue = new RedisQueue($id, $params, 'raspisms', 'raspisms');
+        }
+        else
+        {
+            $this->queue = new SystemVQueue($id);
+        }
+    }
+
+    /**
+     * Add a message to the queue
+     * 
+     * @param string $message : The message to add to the queue
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if null will add to general queue
+     */
+    public function push($message, ?string $tag = null)
+    {
+        return $this->queue->push($message, $tag);
+    }
+
+    /**
+     * Read the older message in the queue
+     * 
+     * @return mixed $message : The oldest message or null if no message found, can be anything
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if null will read from general queue
+     * @param mixed : The message to add to the queue, can be anything, the queue will have to treat it by itself
+     */
+    public function read(?string $tag = null)
+    {
+        return $this->queue->read($tag);
+    }
+
+    /**
+     * Function to close system V queue for cleaning resources, usefull only if system V queue
+     */
+    public function close()
+    {
+        if ($this->queue instanceof SystemVQueue)
+        {
+            $this->queue->close();
+        }
+    }
+}

controllers/internals/Webhook.php

@@ -135,12 +135,11 @@ class Webhook extends StandardController
                 ],
             ];
 
-            $error_code = null;
+            $queue = new Queue(QUEUE_ID_WEBHOOK);
-            $queue = msg_get_queue(QUEUE_ID_WEBHOOK);
+            $success = $queue->push(json_encode($message), QUEUE_TYPE_WEBHOOK);
-            msg_send($queue, QUEUE_TYPE_WEBHOOK, $message, true, true, $error_code);
         }
 
-        return true;
+        return (bool) $success;
     }
 
     /**

daemons/Mailer.php

@@ -11,6 +11,7 @@
 
 namespace daemons;
 
+use controllers\internals\Queue;
 use Monolog\Handler\StreamHandler;
 use Monolog\Logger;
 
@@ -19,7 +20,7 @@ use Monolog\Logger;
  */
 class Mailer extends AbstractDaemon
 {
-    private $mailer_queue;
+    private ?Queue $mailer_queue;
     private $last_message_at;
     private $bdd;
 
@@ -49,27 +50,15 @@ class Mailer extends AbstractDaemon
         $find_message = true;
         while ($find_message)
         {
-            //Call message
+            $message = $this->mailer_queue->read(QUEUE_TYPE_EMAIL);
-            $msgtype = null;
-            $maxsize = 409600;
-            $message = null;
 
-            $error_code = null;
+            if ($message === null)
-            $success = msg_receive($this->mailer_queue, QUEUE_TYPE_EMAIL, $msgtype, $maxsize, $message, true, MSG_IPC_NOWAIT, $error_code); //MSG_IPC_NOWAIT == dont wait if no message found
-            if (!$success && MSG_ENOMSG !== $error_code)
             {
-                $this->logger->critical('Error for mailer queue reading, error code : ' . $error_code);
                 $find_message = false;
-
                 continue;
             }
 
-            if (!$message)
+            $message = json_decode($message, true);
-            {
-                $find_message = false;
-
-                continue;
-            }
 
             $this->logger->info('Try sending email : ' . json_encode($message));
 
@@ -92,7 +81,7 @@ class Mailer extends AbstractDaemon
     public function on_start()
     {
         //Set last message at to construct time
-        $this->mailer_queue = msg_get_queue(QUEUE_ID_EMAIL);
+        $this->mailer_queue = new Queue(QUEUE_ID_EMAIL);
 
         $this->logger->info('Starting Mailer daemon with pid ' . getmypid());
     }
@@ -101,8 +90,6 @@ class Mailer extends AbstractDaemon
     {
         //Delete queue on daemon close
         $this->logger->info('Closing queue : ' . QUEUE_ID_EMAIL);
-        msg_remove_queue($this->mailer_queue);
-
         $this->logger->info('Stopping Mailer daemon with pid ' . getmypid());
     }
 

daemons/Phone.php

@@ -11,6 +11,7 @@
 
 namespace daemons;
 
+use controllers\internals\Queue;
 use Monolog\Handler\StreamHandler;
 use Monolog\Logger;
 
@@ -22,7 +23,7 @@ class Phone extends AbstractDaemon
     private $max_inactivity = 5 * 60;
     private $read_delay = 20 / 0.5;
     private $read_tick = 0;
-    private $msg_queue;
+    private ?Queue $queue;
     private $webhook_queue;
     private $last_message_at;
     private $phone;
@@ -85,7 +86,7 @@ class Phone extends AbstractDaemon
         //Set last message at to construct time
         $this->last_message_at = microtime(true);
 
-        $this->msg_queue = msg_get_queue(QUEUE_ID_PHONE);
+        $this->queue = new Queue(QUEUE_ID_PHONE);
 
         //Instanciate adapter
         $adapter_class = $this->phone['adapter'];
@@ -114,30 +115,17 @@ class Phone extends AbstractDaemon
         $find_message = true;
         while ($find_message)
         {
-            //Call message
-            $msgtype = null;
-            $maxsize = 409600;
-            $message = null;
-
-            // Message type is forged from a prefix concat with the phone ID
             $message_type = (int) QUEUE_TYPE_SEND_MSG_PREFIX . $this->phone['id'];
-            $error_code = null;
+            $message = $this->queue->read($message_type);
-            $success = msg_receive($this->msg_queue, $message_type, $msgtype, $maxsize, $message, true, MSG_IPC_NOWAIT, $error_code); //MSG_IPC_NOWAIT == dont wait if no message found
 
-            if (!$success && MSG_ENOMSG !== $error_code)
+            if ($message === null)
-            {
-                $this->logger->critical('Error reading MSG SEND Queue, error code : ' . $error_code);
-
-                return false;
-            }
-
-            if (!$message)
             {
                 $find_message = false;
-
                 continue;
             }
 
+            $message = json_decode($message, true);
+
             //Update last message time
             $this->last_message_at = microtime(true);
 

daemons/Sender.php

@@ -11,6 +11,8 @@
 
 namespace daemons;
 
+use controllers\internals\Queue;
+use Exception;
 use Monolog\Handler\StreamHandler;
 use Monolog\Logger;
 
@@ -19,12 +21,9 @@ use Monolog\Logger;
  */
 class Sender extends AbstractDaemon
 {
-    private $internal_phone;
     private $internal_scheduled;
-    private $internal_received;
-    private $internal_sended;
     private $bdd;
-    private $msg_queue;
+    private ?Queue $queue;
 
     public function __construct()
     {
@@ -44,9 +43,7 @@ class Sender extends AbstractDaemon
 
     public function run()
     {
-        //Create the internal controllers
         $this->internal_scheduled = new \controllers\internals\Scheduled($this->bdd);
-        $this->internal_sended = new \controllers\internals\Sended($this->bdd);
 
         //Get smss and transmit order to send to appropriate phone daemon
         $smss_per_scheduled = $this->internal_scheduled->get_smss_to_send();
@@ -64,12 +61,6 @@ class Sender extends AbstractDaemon
     {
         foreach ($smss_per_scheduled as $id_scheduled => $smss)
         {
-            //If queue not already exists
-            if (!msg_queue_exists(QUEUE_ID_PHONE) || !isset($this->msg_queue))
-            {
-                $this->msg_queue = msg_get_queue(QUEUE_ID_PHONE);
-            }
-
             foreach ($smss as $sms)
             {
                 $msg = [
@@ -84,9 +75,10 @@ class Sender extends AbstractDaemon
                     'medias' => $sms['medias'] ?? [],
                 ];
 
+
                 // Message type is forged from a prefix concat with the phone ID
                 $message_type = (int) QUEUE_TYPE_SEND_MSG_PREFIX . $sms['id_phone'];
-                msg_send($this->msg_queue, $message_type, $msg);
+                $this->queue->push(json_encode($msg), $message_type);
                 $this->logger->info('Transmit sms send signal to phone ' . $sms['id_phone'] . ' on queue ' . QUEUE_ID_PHONE . ' with message type ' . $message_type . '.');
             }
 
@@ -96,16 +88,25 @@ class Sender extends AbstractDaemon
     }
 
     public function on_start()
+    {
+        try
         {
             $this->logger->info('Starting Sender with pid ' . getmypid());
             $this->bdd = \descartes\Model::_connect(DATABASE_HOST, DATABASE_NAME, DATABASE_USER, DATABASE_PASSWORD);
+            $this->queue = new Queue(QUEUE_ID_PHONE);
+        }
+        catch (Exception $e)
+        {
+            $this->logger->error('Failed to start sender daemon : ' . $e->getMessage());
+        }
+        
     }
 
     public function on_stop()
     {
         //Delete queue on daemon close
-        $this->logger->info('Closing queue : ' . $this->msg_queue);
+        $this->logger->info('Closing queue : ' . QUEUE_ID_PHONE);
-        msg_remove_queue($this->msg_queue);
+        $this->queue->close();
         
         $this->logger->info('Stopping Sender with pid ' . getmypid());
     }

daemons/Webhook.php

@@ -11,6 +11,7 @@
 
 namespace daemons;
 
+use controllers\internals\Queue;
 use GuzzleHttp\Promise\Utils;
 use Monolog\Handler\StreamHandler;
 use Monolog\Logger;
@@ -20,11 +21,7 @@ use Monolog\Logger;
  */
 class Webhook extends AbstractDaemon
 {
-    private $webhook_queue;
+    private ?Queue $webhook_queue;
-    private $last_message_at;
-    private $phone;
-    private $adapter;
-    private $bdd;
     private $guzzle_client;
 
     /**
@@ -56,30 +53,17 @@ class Webhook extends AbstractDaemon
         $promises = [];
         while ($find_message)
         {
-            //Call message
+            $message = $this->webhook_queue->read(QUEUE_TYPE_WEBHOOK);
-            $msgtype = null;
-            $maxsize = 409600;
-            $message = null;
 
-            $error_code = null;
+            if ($message === null)
-            $success = msg_receive($this->webhook_queue, QUEUE_TYPE_WEBHOOK, $msgtype, $maxsize, $message, true, MSG_IPC_NOWAIT, $error_code); //MSG_IPC_NOWAIT == dont wait if no message found
-            if (!$success && MSG_ENOMSG !== $error_code)
             {
-                $this->logger->critical('Error for webhook queue reading, error code : ' . $error_code);
                 $find_message = false;
-
                 continue;
             }
 
-            if (!$message)
+            $this->logger->info('Trigger webhook : ' . $message);
-            {
-                $find_message = false;
-
-                continue;
-            }
-
-            $this->logger->info('Trigger webhook : ' . json_encode($message));
 
+            $message = json_decode($message, true);
             $promises[] = $this->guzzle_client->postAsync($message['url'], ['form_params' => $message['data']]);
         }
 
@@ -97,10 +81,13 @@ class Webhook extends AbstractDaemon
 
     public function on_start()
     {
-        //Set last message at to construct time
+        try{
-        $this->last_message_at = microtime(true);
+            $this->webhook_queue = new Queue(QUEUE_ID_WEBHOOK);
-
+        }
-        $this->webhook_queue = msg_get_queue(QUEUE_ID_WEBHOOK);
+        catch (\Exception $e)
+        {
+            $this->logger->info('Webhook : failed with ' . $e->getMessage());
+        }
 
         $this->logger->info('Starting Webhook daemon with pid ' . getmypid());
     }
@@ -109,7 +96,7 @@ class Webhook extends AbstractDaemon
     {
         //Delete queue on daemon close
         $this->logger->info('Closing queue : ' . QUEUE_ID_WEBHOOK);
-        msg_remove_queue($this->webhook_queue);
+        unset($this->webhook_queue);
 
         $this->logger->info('Stopping Webhook daemon with pid ' . getmypid());
     }

env.prod.php.dist

@@ -26,6 +26,11 @@
             'HOST' => '%APP_URL_SHORTENER_HOST%',
             'USER' => '%APP_URL_SHORTENER_USER%',
             'PASS' => '%APP_URL_SHORTENER_PASS%',
-        ]
+        ],
 
+        // Define if we should use a Redis instance instead of System V Queues
+        'USE_REDIS_QUEUES' => %APP_USE_REDIS_QUEUES%,
+        'REDIS_HOST' => '%APP_REDIS_HOST%',
+        'REDIS_PORT' => '%APP_REDIS_PORT%',
+        'REDIS_PASSWORD' => '%APP_REDIS_PASSWORD%',
     ];

models/Queue.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace models;
+
+/**
+ *
+ */
+interface Queue
+{
+    /**
+     * A FIFO Queue to exchange messages, the backend mechanism can be whatever we want, but the queue take message, tag for routing is optionnal
+     * @param string $id : A unique identifier for the queue
+     */
+    public function __construct($id);
+
+    /**
+     * Add a message to the queue
+     * 
+     * @param string $message : The message to add to the queue, must be a string, for complex data just use json
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if not set will add to general queue
+     */
+    public function push($message, ?string $tag = null);
+
+    /**
+     * Read the older message in the queue (non-blocking)
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if not set will read from general queue
+     * @return ?string $message : The oldest message or null if no message found, can be anything
+     */
+    public function read(?string $tag = null);
+}

models/RedisQueue.php

@@ -0,0 +1,108 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace models;
+
+use Exception;
+
+/**
+ *
+ */
+class RedisQueue implements Queue
+{
+    private \Redis $redis;
+    private $group;
+    private $consumer;
+    private $id;
+
+    /**
+     * A Redis queue to store and exchange messages using redis streams
+     * routing is based on queue uniq id as stream name, combined with ':tag' if routing is needed, messages are stored as json
+     * @param string $id : A unique identifier for the queue
+     * @param array $redis_parameters : Parameters for the redis server, such as host, port, etc. Default to a basic local redis on port 6379
+     * @param string $group : Name to use for the redis group that must read this queue, default to 'default'
+     * @param string $consumer : Name to use for the redis consumer in the group that must read this queue, default to 'default'
+     */
+    public function __construct($id, $redis_parameters = [], $group = 'default', $consumer = 'default')
+    {
+        $this->id = $id;
+        $this->redis = new \Redis();
+        $success = $this->redis->connect($redis_parameters['host'], intval($redis_parameters['port']), 1, '', 0, 0, ['auth' => $redis_parameters['auth']]);
+        
+        if (!$success) 
+        {
+            throw new \Exception('Failed to connect to redis server !');
+        }
+        
+        $this->group = $group;
+        $this->consumer = $consumer;
+    }
+
+    /**
+     * Add a message to the queue
+     * 
+     * @param string $message : The message to add to the queue
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if null will add to general queue
+     */
+    public function push($message, ?string $tag = null)
+    {
+        $stream = $this->id . ($tag !== null ? ":$tag" : '');
+        $success = $this->redis->xAdd($stream, '*', ['message' => $message]);
+
+        if (!$success) 
+        {
+            throw new \Exception('Failed to push a message !');
+        }
+
+        return true;
+    }
+
+    /**
+     * Read the older message in the queue
+     * 
+     * @return mixed $message : The oldest message or null if no message found, can be anything
+     * @param ?string $tag : A tag to associate to the message for routing purposes, if null will read from general queue
+     * @param mixed : The message to add to the queue, can be anything, the queue will have to treat it by itself
+     */
+    public function read(?string $tag = null)
+    {
+        $stream = $this->id . ($tag !== null ? ":$tag" : '');
+
+        // Create the consumer group if it doesn't already exist
+        try 
+        {
+            $this->redis->xGroup('CREATE', $stream, $this->group, '$', true);
+        } 
+        catch (Exception $e) 
+        {
+            // Ignore error if the group already exists
+        }
+
+        // Read a single message starting from the oldest (>)
+        $messages = $this->redis->xReadGroup($this->group, $this->consumer, [$stream => '>'], 1);
+        if (!count($messages))
+        {
+            return null;
+        }
+
+        // Find the message, acknowledge it and return it
+        foreach ($messages as $stream_name => $entries) 
+        {
+            foreach ($entries as $message_id => $message) 
+            {
+                $success = $this->redis->xAck($stream, $this->group, [$message_id]);
+                return $message['message'];
+            }
+        }
+
+        return null;
+    }
+}

models/SystemVQueue.php

@@ -0,0 +1,115 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace models;
+
+/**
+ *
+ */
+class SystemVQueue implements Queue
+{
+    private $id;
+    private $queue;
+
+    /**
+     * A queue using System V message queues to store and exchange messages
+     * routing is based on queue id and message type
+     * 
+     * ** Attention : Instead of string, all ids and tags must be numbers, its the system v queues works, no reliable way arround it**
+     * @param int $id : A unique identifier for the queue, *this must be generated with ftok*
+
+     */
+    public function __construct($id)
+    {
+        $this->id = (int) $id;
+    }
+
+    /**
+     * Function to close the system v queue on destruction
+     */
+    public function close()
+    {
+        if ($this->queue)
+        {
+            msg_remove_queue($this->queue);
+        }
+    }
+
+    /**
+     * Function to get the message queue and ensure it is open, we should always call it during push/read just to 
+     * make sure another process didn't close the queue
+     */
+    private function get_queue()
+    {
+        $this->queue = msg_get_queue($this->id);
+
+        if (!$this->queue)
+        {
+            throw new \Exception('Impossible to get a System V message queue for id ' . $this->id);
+        }
+    }
+
+    /**
+     * Add a message to the queue
+     * 
+     * @param string $message : The message to add to the queue
+     * @param ?string $tag : A tag to associate to the message for routing purposes. 
+     * Though this is a string, we MUST pass a valid number, its the way System V queue works
+     */
+    public function push($message, ?string $tag = '0')
+    {   
+        $tag = (int) $tag;
+        
+        $this->get_queue();
+        $error_code = null;
+        $success = msg_send($this->queue, $tag, $message, true, false, $error_code);
+        if (!$success)
+        {
+            throw new \Exception('Impossible to send the message on system V queue, error code : ' . $error_code);
+        }
+
+        return true;
+    }
+
+    /**
+     * Read the older message in the queue
+     * 
+     * @param ?string $tag : A tag to associate to the message for routing purposes
+     * Though this is a string, we MUST pass a valid number, its the way System V queue works
+     * 
+     * @return mixed $message : The oldest message or null if no message found, can be anything
+     */
+    public function read(?string $tag = '0')
+    {
+        $tag = (int) $tag;
+
+        $msgtype = null;
+        $maxsize = 409600;
+        $message = null;
+
+        // Message type is forged from a prefix concat with the phone ID
+        $error_code = null;
+        $this->get_queue();
+        $success = msg_receive($this->queue, $tag, $msgtype, $maxsize, $message, true, MSG_IPC_NOWAIT, $error_code); //MSG_IPC_NOWAIT == dont wait if no message found
+
+        if (!$success && MSG_ENOMSG !== $error_code)
+        {
+            throw new \Exception('Impossible to read messages on system V queue, error code : ' . $error_code);
+        }
+
+        if (!$message)
+        {
+            return null;
+        }
+
+        return $message;
+    }
+}