Publication initiale de RelaisSMS : documentation et sources nettoyees

2026-10-21 09:29:39 +02:00
commit ac186b03b1
158 changed files with 24818 additions and 0 deletions
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+<?php
+
+namespace App\Services\Sms;
+
+class SmsMessageLength
+{
+    private const GSM_BASIC = "@\u{00A3}$\u{00A5}\u{00E8}\u{00E9}\u{00F9}\u{00EC}\u{00F2}\u{00C7}\n\u{00D8}\u{00F8}\r\u{00C5}\u{00E5}\u{0394}_\u{03A6}\u{0393}\u{039B}\u{03A9}\u{03A0}\u{03A8}\u{03A3}\u{0398}\u{039E}\u{00C6}\u{00E6}\u{00DF}\u{00C9} !\"#\u{00A4}%&'()*+,-./0123456789:;<=>?\u{00A1}ABCDEFGHIJKLMNOPQRSTUVWXYZ\u{00C4}\u{00D6}\u{00D1}\u{00DC}\u{00A7}\u{00BF}abcdefghijklmnopqrstuvwxyz\u{00E4}\u{00F6}\u{00F1}\u{00FC}\u{00E0}";
+
+    private const GSM_EXTENDED = "^{}\\[~]|\u{20AC}";
+
+    public function fitsInOneSms(string $message): bool
+    {
+        return $this->units($message) <= $this->singleSmsCapacity($message);
+    }
+
+    public function units(string $message): int
+    {
+        if (! $this->usesGsmAlphabet($message)) {
+            return intdiv(strlen(mb_convert_encoding($message, 'UTF-16BE', 'UTF-8')), 2);
+        }
+
+        return array_sum(array_map(
+            fn (string $character): int => str_contains(self::GSM_EXTENDED, $character) ? 2 : 1,
+            mb_str_split($message),
+        ));
+    }
+
+    public function singleSmsCapacity(string $message): int
+    {
+        return $this->usesGsmAlphabet($message) ? 160 : 70;
+    }
+
+    /**
+     * Truncate a value so that prefix + value + suffix still fits in one SMS.
+     */
+    public function truncateBetween(string $prefix, string $value, string $suffix, string $marker = '[...]'): string
+    {
+        if ($this->fitsInOneSms($prefix.$value.$suffix)) {
+            return $value;
+        }
+
+        $truncated = '';
+
+        foreach (mb_str_split($value) as $character) {
+            if (! $this->fitsInOneSms($prefix.$truncated.$character.$marker.$suffix)) {
+                break;
+            }
+
+            $truncated .= $character;
+        }
+
+        if ($this->fitsInOneSms($prefix.$truncated.$marker.$suffix)) {
+            return rtrim($truncated).$marker;
+        }
+
+        return rtrim($truncated);
+    }
+
+    private function usesGsmAlphabet(string $message): bool
+    {
+        foreach (mb_str_split($message) as $character) {
+            if (! str_contains(self::GSM_BASIC, $character) && ! str_contains(self::GSM_EXTENDED, $character)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}