1 files changed, 67 insertions, 0 deletions
diff --git a/toolkit/components/formautofill/phonenumberutils/PhoneNumberNormalizer.sys.mjs b/toolkit/components/formautofill/phonenumberutils/PhoneNumberNormalizer.sys.mjs
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+++ b/toolkit/components/formautofill/phonenumberutils/PhoneNumberNormalizer.sys.mjs
@@ -0,0 +1,67 @@
+/* This Source Code Form is subject to the terms of the Apache License, Version
+ * 2.0. If a copy of the Apache License was not distributed with this file, You
+ * can obtain one at https://www.apache.org/licenses/LICENSE-2.0 */
+
+// This library came from https://github.com/andreasgal/PhoneNumber.js but will
+// be further maintained by our own in Form Autofill codebase.
+
+export var PhoneNumberNormalizer = (function () {
+  const UNICODE_DIGITS = /[\uFF10-\uFF19\u0660-\u0669\u06F0-\u06F9]/g;
+  const VALID_ALPHA_PATTERN = /[a-zA-Z]/g;
+  const LEADING_PLUS_CHARS_PATTERN = /^[+\uFF0B]+/g;
+  const NON_DIALABLE_CHARS = /[^,#+\*\d]/g;
+
+  // Map letters to numbers according to the ITU E.161 standard
+  let E161 = {
+    a: 2,
+    b: 2,
+    c: 2,
+    d: 3,
+    e: 3,
+    f: 3,
+    g: 4,
+    h: 4,
+    i: 4,
+    j: 5,
+    k: 5,
+    l: 5,
+    m: 6,
+    n: 6,
+    o: 6,
+    p: 7,
+    q: 7,
+    r: 7,
+    s: 7,
+    t: 8,
+    u: 8,
+    v: 8,
+    w: 9,
+    x: 9,
+    y: 9,
+    z: 9,
+  };
+
+  // Normalize a number by converting unicode numbers and symbols to their
+  // ASCII equivalents and removing all non-dialable characters.
+  function NormalizeNumber(number, numbersOnly) {
+    if (typeof number !== "string") {
+      return "";
+    }
+
+    number = number.replace(UNICODE_DIGITS, function (ch) {
+      return String.fromCharCode(48 + (ch.charCodeAt(0) & 0xf));
+    });
+    if (!numbersOnly) {
+      number = number.replace(VALID_ALPHA_PATTERN, function (ch) {
+        return String(E161[ch.toLowerCase()] || 0);
+      });
+    }
+    number = number.replace(LEADING_PLUS_CHARS_PATTERN, "+");
+    number = number.replace(NON_DIALABLE_CHARS, "");
+    return number;
+  }
+
+  return {
+    Normalize: NormalizeNumber,
+  };
+})();