fix(providers): accept CIDR subnets and surface host validation errors

The additional-host regex in provider-base-modify.js used \d inside a
single-backslash string literal, so JS compiled it as the bare letter d.
CIDR masks like /21 silently failed validation. On rejection the input
only shake-animated with no explanation, leaving users guessing.

- Escape \d/\/ properly so the CIDR group matches /0../32
- Drop g/m regex flags (irrelevant for ^...$ single-line tests)
- Replace silent shake with a Fomantic pointing red label under the
  input, auto-hidden after 5s, role="alert" for a11y
- Switch .html(value) to .text(value) for host rows (defense in depth
  even though the regex already excludes < and >)
- Add pr_InvalidHostAddress translation across 26 languages

Author: boffart

sites/admin-cabinet/assets/js/pbx/Providers/provider-base-modify.js

@@ -56,13 +56,12 @@ class ProviderBase {
         // Track if form is fully initialized
         this.formInitialized = false;
 
-        // Host input validation regex
+        // Host input validation regex: IPv4 address, IPv4 CIDR (/0-/32), or hostname
         this.hostInputValidation = new RegExp(
             '^(((\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])\\.){3}'
             + '(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])'
-            + '(\\/(\d|[1-2]\d|3[0-2]))?'
-            + '|[a-zA-Z0-9-]{0,61}[a-zA-Z0-9](?:\\.[a-zA-Z]{2,})+)$',
-            'gm'
+            + '(\\/(\\d|[1-2]\\d|3[0-2]))?'
+            + '|[a-zA-Z0-9-]{0,61}[a-zA-Z0-9](?:\\.[a-zA-Z]{2,})+)$'
         );
     }
 

sites/admin-cabinet/assets/js/pbx/Providers/provider-sip-modify.js

@@ -894,6 +894,39 @@ class ProviderSIP extends ProviderBase {
         }
     }
 
+    /**
+     * Show inline validation error on the additional-host input.
+     * Pairs the existing shake animation with a Fomantic pointing label
+     * placed directly under the input, since shake alone leaves the user
+     * wondering why their input was rejected.
+     */
+    showHostInputError() {
+        const message = (typeof globalTranslate !== 'undefined' && globalTranslate.pr_InvalidHostAddress)
+            ? globalTranslate.pr_InvalidHostAddress
+            : 'Введите корректный IP адрес, подсеть в нотации CIDR (например 10.0.0.0/8) или имя хоста';
+
+        const $wrapper = this.$additionalHostInput.parent();
+        // Always recreate the label so we never inherit stale Fomantic transition state
+        $wrapper.parent().find('.host-input-error').remove();
+
+        const $label = $('<div class="ui pointing red basic label host-input-error" role="alert"></div>')
+            .text(message);
+        $wrapper.after($label);
+
+        clearTimeout(this._hostErrorTimer);
+        this._hostErrorTimer = setTimeout(() => $label.remove(), 5000);
+
+        this.$additionalHostInput.transition('shake');
+    }
+
+    /**
+     * Hide the inline validation error, if any.
+     */
+    hideHostInputError() {
+        clearTimeout(this._hostErrorTimer);
+        this.$additionalHostInput.parent().parent().find('.host-input-error').remove();
+    }
+
     /**
      * Handle completion of host address input
      */
@@ -905,10 +938,13 @@ class ProviderSIP extends ProviderBase {
 
             // Validate the input value
             if (validation === null || validation.length === 0) {
-                this.$additionalHostInput.transition('shake');
+                this.showHostInputError();
                 return;
             }
-            
+
+            // Hide any previous validation error on successful input
+            this.hideHostInputError();
+
             // Check if the host address already exists
             if ($(`.host-row[data-value=\"${value}\"]`).length === 0) {
                 const $tr = this.$additionalHostsTemplate.last();
@@ -918,7 +954,7 @@ class ProviderSIP extends ProviderBase {
                     .addClass('host-row')
                     .show();
                 $clone.attr('data-value', value);
-                $clone.find('.address').html(value);
+                $clone.find('.address').text(value);
                 const $existingHostRows = this.$formObj.find(ProviderSIP.SIP_SELECTORS.HOST_ROW);
                 if ($existingHostRows.last().length === 0) {
                     $tr.after($clone);
@@ -970,7 +1006,7 @@ class ProviderSIP extends ProviderBase {
                     .addClass('host-row')
                     .show();
                 $clone.attr('data-value', hostAddress);
-                $clone.find('.address').html(hostAddress);
+                $clone.find('.address').text(hostAddress);
 
                 // Insert the cloned row
                 const $existingHostRows = this.$formObj.find(ProviderSIP.SIP_SELECTORS.HOST_ROW);

sites/admin-cabinet/assets/js/src/Providers/provider-base-modify.js

@@ -183,6 +183,7 @@
     'pr_EnableCallerIdDidDebug' => 'CallerID/DID debug-ını aktivləşdirin',
     'pr_EnterHostOrIp' => 'Provayderin əlavə ünvanları',
     'pr_EnterHostOrIpPlaceholder' => 'IP ünvanını və ya alt şəbəkəni daxil edin və Enter düyməsini basın',
+    'pr_InvalidHostAddress' => 'Düzgün IP ünvanı, CIDR alt şəbəkəsi (məs. 10.0.0.0/8) və ya host adı daxil edin',
     'pr_Event' => 'Hadisə',
     'pr_EventHistory' => 'Hadisələr tarixi',
     'pr_EventTypeError' => 'Xəta',

sites/admin-cabinet/assets/js/src/Providers/provider-sip-modify.js

@@ -183,6 +183,7 @@
     'pr_EnableCallerIdDidDebug' => 'Zapnout ladění CallerID/DID',
     'pr_EnterHostOrIp' => 'Další adresy poskytovatele',
     'pr_EnterHostOrIpPlaceholder' => 'Zadejte IP adresu nebo podsíť a stiskněte Enter',
+    'pr_InvalidHostAddress' => 'Zadejte platnou IP adresu, podsíť CIDR (např. 10.0.0.0/8) nebo název hostitele',
     'pr_Event' => 'Událost',
     'pr_EventHistory' => 'Historie událostí',
     'pr_EventTypeError' => 'Chyba',

src/Common/Messages/az/Providers.php

@@ -183,6 +183,7 @@
     'pr_EnableCallerIdDidDebug' => 'Aktivér CallerID/DID debug',
     'pr_EnterHostOrIp' => 'Yderligere udbyderadresser',
     'pr_EnterHostOrIpPlaceholder' => 'Indtast IP-adresse eller subnet og tryk Enter',
+    'pr_InvalidHostAddress' => 'Indtast en gyldig IP-adresse, CIDR-subnet (f.eks. 10.0.0.0/8) eller værtsnavn',
     'pr_Event' => 'Begivenhed',
     'pr_EventHistory' => 'Begivenhedshistorik',
     'pr_EventTypeError' => 'Fejl',

src/Common/Messages/cs/Providers.php

@@ -183,6 +183,7 @@
     'pr_EnableCallerIdDidDebug' => 'CallerID/DID-Debug aktivieren',
     'pr_EnterHostOrIp' => 'Zusätzliche Provider-Adressen',
     'pr_EnterHostOrIpPlaceholder' => 'Geben Sie IP-Adresse oder Subnetz ein und drücken Sie Enter',
+    'pr_InvalidHostAddress' => 'Geben Sie eine gültige IP-Adresse, ein CIDR-Subnetz (z.B. 10.0.0.0/8) oder einen Hostnamen ein',
     'pr_Event' => 'Ereignis',
     'pr_EventHistory' => 'Ereignisverlauf',
     'pr_EventTypeError' => 'Fehler',

src/Common/Messages/da/Providers.php

@@ -183,6 +183,7 @@
     'pr_EnableCallerIdDidDebug' => 'Ενεργοποίηση εντοπισμού σφαλμάτων CallerID/DID',
     'pr_EnterHostOrIp' => 'Πρόσθετες διευθύνσεις παρόχου',
     'pr_EnterHostOrIpPlaceholder' => 'Εισαγάγετε τη διεύθυνση IP ή το υποδίκτυο και πατήστε Enter',
+    'pr_InvalidHostAddress' => 'Εισαγάγετε έγκυρη διεύθυνση IP, υποδίκτυο CIDR (π.χ. 10.0.0.0/8) ή όνομα κεντρικού υπολογιστή',
     'pr_Event' => 'Συμβάν',
     'pr_EventHistory' => 'Ιστορικό συμβάντων',
     'pr_EventTypeError' => 'Σφάλμα',

src/Common/Messages/de/Providers.php

@@ -200,6 +200,7 @@
     'pr_EnableCallerIdDidDebug' => 'Enable CallerID/DID debug',
     'pr_EnterHostOrIp' => 'Additional provider addresses',
     'pr_EnterHostOrIpPlaceholder' => 'Enter IP address or subnet and press Enter',
+    'pr_InvalidHostAddress' => 'Enter a valid IP address, CIDR subnet (e.g. 10.0.0.0/8), or hostname',
     'pr_Event' => 'Event',
     'pr_EventHistory' => 'Event history',
     'pr_EventTypeError' => 'Error',