From 59d3e2848975a39830077f752be46c2d406e9791 Mon Sep 17 00:00:00 2001
From: osaajani <>
Date: Mon, 6 Feb 2023 20:18:35 +0100
Subject: [PATCH] Add a setting to force gsm alphabet conversion

---
 composer.json                       |  5 ++---
 controllers/internals/Scheduled.php |  5 +++++
 controllers/internals/Tool.php      | 15 +++++++++++++++
 controllers/publics/Templating.php  |  6 ++++++
 env.php.dist                        |  1 +
 templates/setting/show.php          | 19 +++++++++++++++++++
 6 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/composer.json b/composer.json
index 935f689..403cedf 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,7 @@
         "symfony/yaml": "^5.0",
         "phpmailer/phpmailer": "^6.1",
         "xantios/mimey": ">=2.1",
-        "kreait/firebase-php": "^5.14"
-    },
-    "require-dev": {
+        "kreait/firebase-php": "^5.14",
+        "benmorel/gsm-charset-converter": "^0.3.0"
     }
 }
diff --git a/controllers/internals/Scheduled.php b/controllers/internals/Scheduled.php
index b31e7bd..a89f38e 100644
--- a/controllers/internals/Scheduled.php
+++ b/controllers/internals/Scheduled.php
@@ -601,6 +601,11 @@ use Monolog\Logger;
                         continue;
                     }
 
+                    // If we must force GSM 7 alphabet
+                    if ((int) ($users_settings[$id_user]['force_gsm_alphabet'] ?? false))
+                    {
+                        $text = Tool::convert_to_gsm0338($text);
+                    }
 
                     /*
                         Choose phone if no phone defined for message
diff --git a/controllers/internals/Tool.php b/controllers/internals/Tool.php
index fef0375..a09fab6 100644
--- a/controllers/internals/Tool.php
+++ b/controllers/internals/Tool.php
@@ -11,6 +11,8 @@
 
 namespace controllers\internals;
 
+use BenMorel\GsmCharsetConverter\Converter;
+
     /**
      * Some tools frequently used.
      * Not a standard controller as it's not linked to a model in any way.
@@ -412,4 +414,17 @@ namespace controllers\internals;
 
             return "{$scheme}{$user}{$pass}{$host}{$port}{$path}{$query}{$fragment}";
         }
+
+
+        /**
+         * Transform an UTF-8 string into a valid GSM 7 string (GSM 03.38), remplacing invalid chars with best equivalent whenever possible
+         * 
+         * @param string $text : Input text to convert into gsm string
+         * @return string : An UTF-8 string with GSM alphabet only
+         */
+        public static function convert_to_gsm0338(string $text): string
+        {
+            $converter = new Converter();
+            return $converter->cleanUpUtf8String($text, true, '?');
+        }
     }
diff --git a/controllers/publics/Templating.php b/controllers/publics/Templating.php
index 026622e..a667ee7 100644
--- a/controllers/publics/Templating.php
+++ b/controllers/publics/Templating.php
@@ -83,6 +83,12 @@ namespace controllers\publics;
             $result = $this->internal_templating->render($template, $data);
             $return = $result;
 
+            // If we must force GSM 7 alphabet
+            if ((int) ($_SESSION['user']['settings']['force_gsm_alphabet'] ?? false))
+            {
+                $return['result'] = \controllers\internals\Tool::convert_to_gsm0338($return['result']);
+            }
+
             if (!trim($result['result']))
             {
                 $return['result'] = 'Message vide, il ne sera pas envoyé.';
diff --git a/env.php.dist b/env.php.dist
index 8f7091b..c544ba0 100644
--- a/env.php.dist
+++ b/env.php.dist
@@ -82,6 +82,7 @@
             'alert_quota_limit_reached' => 1,
             'alert_quota_limit_close' => 0.9,
             'hide_menus' => '',
+            'force_gsm_alphabet' => 0,
         ],
 	];
 
diff --git a/templates/setting/show.php b/templates/setting/show.php
index 7a6325a..afe8cff 100644
--- a/templates/setting/show.php
+++ b/templates/setting/show.php
@@ -54,6 +54,25 @@
 										</form>
 									</div>
                                 </div>
+                                <div class="panel panel-default">
+									<div class="panel-heading">
+										<h4 class="panel-title"><i class="fa fa-font fa-fw"></i> Alphabet SMS optimisé</h4>
+									</div>
+									<div class="panel-body">
+										<form action="<?php echo \descartes\Router::url('Setting', 'update', ['setting_name' => 'force_gsm_alphabet', 'csrf' => $_SESSION['csrf']]); ?>" method="POST">
+											<div class="form-group">
+												<label>Optimiser la taille des SMS en remplaçant les caractères spéciaux par leur équivalent GSM 7-bit : </label>
+												<select name="setting_value" class="form-control">
+													<option value="0">Non</option>
+													<option value="1" <?php echo $_SESSION['user']['settings']['force_gsm_alphabet'] ? 'selected' : ''; ?>>Oui</option>
+												</select>
+											</div>	
+											<div class="text-center">
+												<button class="btn btn-success">Mettre à jour les données</button>	
+											</div>
+										</form>
+									</div>
+								</div>
 								<div class="panel panel-default">
 									<div class="panel-heading">
 										<h4 class="panel-title"><i class="fa fa-picture-o fa-fw"></i> Support des MMS</h4>