1 files changed, 76 insertions, 0 deletions
diff --git a/toolkit/components/passwordmgr/LoginExport.sys.mjs b/toolkit/components/passwordmgr/LoginExport.sys.mjs
new file mode 100644
index 0000000000..181842c3db
--- /dev/null
+++ b/toolkit/components/passwordmgr/LoginExport.sys.mjs
@@ -0,0 +1,76 @@
+/* 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/. */
+
+/**
+ * Module to support exporting logins to a .csv file.
+ */
+
+export class LoginExport {
+  /**
+   * Builds an array of strings representing a row in a CSV.
+   *
+   * @param {nsILoginInfo} login
+   *        The object that will be converted into a csv row.
+   * @param {string[]} columns
+   *        The CSV columns, used to find the properties from the login object.
+   * @returns {string[]} Representing a row.
+   */
+  static _buildCSVRow(login, columns) {
+    let row = [];
+    for (let columnName of columns) {
+      let columnValue = login[columnName];
+      if (typeof columnValue == "string") {
+        columnValue = columnValue.split('"').join('""');
+      }
+      if (columnValue !== null && columnValue != undefined) {
+        row.push(`"${columnValue}"`);
+      } else {
+        row.push("");
+      }
+    }
+    return row;
+  }
+
+  /**
+   * Given a path it saves all the logins as a CSV file.
+   *
+   * @param {string} path
+   *        The file path to save the login to.
+   * @param {nsILoginInfo[]} [logins = null]
+   *        An optional list of logins.
+   */
+  static async exportAsCSV(path, logins = null) {
+    if (!logins) {
+      logins = await Services.logins.getAllLoginsAsync();
+    }
+    let columns = [
+      "origin",
+      "username",
+      "password",
+      "httpRealm",
+      "formActionOrigin",
+      "guid",
+      "timeCreated",
+      "timeLastUsed",
+      "timePasswordChanged",
+    ];
+    let csvHeader = columns.map(name => {
+      if (name == "origin") {
+        return '"url"';
+      }
+      return `"${name}"`;
+    });
+
+    let rows = [];
+    rows.push(csvHeader);
+    for (let login of logins) {
+      rows.push(LoginExport._buildCSVRow(login, columns));
+    }
+    // https://tools.ietf.org/html/rfc7111 suggests always using CRLF.
+    const csvAsString = rows.map(e => e.join(",")).join("\r\n");
+    await IOUtils.writeUTF8(path, csvAsString, {
+      tmpPath: path + ".tmp",
+    });
+  }
+}