1 files changed, 66 insertions, 0 deletions
diff --git a/comm/mailnews/addrbook/modules/LDAPService.jsm b/comm/mailnews/addrbook/modules/LDAPService.jsm
new file mode 100644
index 0000000000..d1def67afc
--- /dev/null
+++ b/comm/mailnews/addrbook/modules/LDAPService.jsm
@@ -0,0 +1,66 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const EXPORTED_SYMBOLS = ["LDAPService"];
+
+/**
+ * @implements {nsILDAPService}
+ */
+class LDAPService {
+  QueryInterface = ChromeUtils.generateQI(["nsILDAPService"]);
+
+  createFilter(maxSize, pattern, prefix, suffix, attr, value) {
+    let words = value.split(" ");
+    // Get the Mth to Nth words.
+    function getMtoN(m, n) {
+      n = n || m;
+      return words.slice(m - 1, n).join(" ");
+    }
+
+    let filter = prefix;
+    pattern.replaceAll("%a", attr);
+    while (pattern) {
+      let index = pattern.indexOf("%v");
+      if (index == -1) {
+        filter += pattern;
+        pattern = "";
+      } else {
+        filter += pattern.slice(0, index);
+        // Get the three characters after %v.
+        let [c1, c2, c3] = pattern.slice(index + 2, index + 5);
+        if (c1 >= "1" && c1 <= "9") {
+          if (c2 == "$") {
+            // %v$: means the last word
+            filter += getMtoN(words.length);
+            pattern = pattern.slice(index + 3);
+          } else if (c2 == "-") {
+            if (c3 >= "1" && c3 <= "9") {
+              // %vM-N: means from the Mth to the Nth word
+              filter += getMtoN(c1, c3);
+              pattern = pattern.slice(index + 5);
+            } else {
+              // %vN-: means from the Nth to the last word
+              filter += getMtoN(c1, words.length);
+              pattern = pattern.slice(index + 4);
+            }
+          } else {
+            // %vN: means the Nth word
+            filter += getMtoN(c1);
+            pattern = pattern.slice(index + 3);
+          }
+        } else {
+          // %v: means the entire search value
+          filter += value;
+          pattern = pattern.slice(index + 2);
+        }
+      }
+    }
+    filter += suffix;
+    return filter.length > maxSize ? "" : filter;
+  }
+}
+
+LDAPService.prototype.classID = Components.ID(
+  "{e8b59b32-f83f-4d5f-8eb5-e3c1e5de0d47}"
+);