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diff --git a/components/sync/utils.js b/components/sync/utils.js
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+++ b/components/sync/utils.js
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+/* 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/. */
+
+// Equivalent to 0o600 permissions; used for saved Sync Recovery Key.
+// This constant can be replaced when the equivalent values are available to
+// chrome JS; see Bug 433295 and Bug 757351.
+const PERMISSIONS_RWUSR = 0x180;
+
+// Weave should always exist before before this file gets included.
+var gSyncUtils = {
+  get bundle() {
+    delete this.bundle;
+    return this.bundle = Services.strings.createBundle("chrome://browser/locale/syncSetup.properties");
+  },
+
+  // opens in a new window if we're in a modal prefwindow world, in a new tab otherwise
+  _openLink: function (url) {
+    let thisDocEl = document.documentElement,
+        openerDocEl = window.opener && window.opener.document.documentElement;
+    if (thisDocEl.id == "accountSetup" && window.opener &&
+        openerDocEl.id == "BrowserPreferences" && !openerDocEl.instantApply)
+      openUILinkIn(url, "window");
+    else if (thisDocEl.id == "BrowserPreferences" && !thisDocEl.instantApply)
+      openUILinkIn(url, "window");
+    else if (document.documentElement.id == "change-dialog")
+      Services.wm.getMostRecentWindow("navigator:browser")
+              .openUILinkIn(url, "tab");
+    else
+      openUILinkIn(url, "tab");
+  },
+
+  changeName: function changeName(input) {
+    // Make sure to update to a modified name, e.g., empty-string -> default
+    Weave.Service.clientsEngine.localName = input.value;
+    input.value = Weave.Service.clientsEngine.localName;
+  },
+
+  openChange: function openChange(type, duringSetup) {
+    // Just re-show the dialog if it's already open
+    let openedDialog = Services.wm.getMostRecentWindow("Sync:" + type);
+    if (openedDialog != null) {
+      openedDialog.focus();
+      return;
+    }
+
+    // Open up the change dialog
+    let changeXUL = "chrome://browser/content/sync/genericChange.xul";
+    let changeOpt = "centerscreen,chrome,resizable=no";
+    Services.ww.activeWindow.openDialog(changeXUL, "", changeOpt,
+                                        type, duringSetup);
+  },
+
+  changePassword: function () {
+    if (Weave.Utils.ensureMPUnlocked())
+      this.openChange("ChangePassword");
+  },
+
+  resetPassphrase: function (duringSetup) {
+    if (Weave.Utils.ensureMPUnlocked())
+      this.openChange("ResetPassphrase", duringSetup);
+  },
+
+  updatePassphrase: function () {
+    if (Weave.Utils.ensureMPUnlocked())
+      this.openChange("UpdatePassphrase");
+  },
+
+  resetPassword: function () {
+    this._openLink(Weave.Service.pwResetURL);
+  },
+
+  openToS: function () {
+    this._openLink(Weave.Svc.Prefs.get("termsURL"));
+  },
+
+  openPrivacyPolicy: function () {
+    this._openLink(Weave.Svc.Prefs.get("privacyURL"));
+  },
+
+  openFirstSyncProgressPage: function () {
+    this._openLink("about:sync-progress");
+  },
+
+  /**
+   * Prepare an invisible iframe with the passphrase backup document.
+   * Used by both the print and saving methods.
+   *
+   * @param elid : ID of the form element containing the passphrase.
+   * @param callback : Function called once the iframe has loaded.
+   */
+  _preparePPiframe: function(elid, callback) {
+    let pp = document.getElementById(elid).value;
+
+    // Create an invisible iframe whose contents we can print.
+    let iframe = document.createElement("iframe");
+    iframe.setAttribute("src", "chrome://browser/content/sync/key.xhtml");
+    iframe.collapsed = true;
+    document.documentElement.appendChild(iframe);
+    iframe.contentWindow.addEventListener("load", function() {
+      iframe.contentWindow.removeEventListener("load", arguments.callee, false);
+
+      // Insert the Sync Key into the page.
+      let el = iframe.contentDocument.getElementById("synckey");
+      el.firstChild.nodeValue = pp;
+
+      // Insert the TOS and Privacy Policy URLs into the page.
+      let termsURL = Weave.Svc.Prefs.get("termsURL");
+      el = iframe.contentDocument.getElementById("tosLink");
+      el.setAttribute("href", termsURL);
+      el.firstChild.nodeValue = termsURL;
+
+      let privacyURL = Weave.Svc.Prefs.get("privacyURL");
+      el = iframe.contentDocument.getElementById("ppLink");
+      el.setAttribute("href", privacyURL);
+      el.firstChild.nodeValue = privacyURL;
+
+      callback(iframe);
+    }, false);
+  },
+
+  /**
+   * Print passphrase backup document.
+   * 
+   * @param elid : ID of the form element containing the passphrase.
+   */
+  passphrasePrint: function(elid) {
+    this._preparePPiframe(elid, function(iframe) {
+      let webBrowserPrint = iframe.contentWindow
+                                  .QueryInterface(Ci.nsIInterfaceRequestor)
+                                  .getInterface(Ci.nsIWebBrowserPrint);
+      let printSettings = PrintUtils.getPrintSettings();
+
+      // Display no header/footer decoration except for the date.
+      printSettings.headerStrLeft
+        = printSettings.headerStrCenter
+        = printSettings.headerStrRight
+        = printSettings.footerStrLeft
+        = printSettings.footerStrCenter = "";
+      printSettings.footerStrRight = "&D";
+
+      try {
+        webBrowserPrint.print(printSettings, null);
+      } catch (ex) {
+        // print()'s return codes are expressed as exceptions. Ignore.
+      }
+    });
+  },
+
+  /**
+   * Save passphrase backup document to disk as HTML file.
+   * 
+   * @param elid : ID of the form element containing the passphrase.
+   */
+  passphraseSave: function(elid) {
+    let dialogTitle = this.bundle.GetStringFromName("save.recoverykey.title");
+    let defaultSaveName = this.bundle.GetStringFromName("save.recoverykey.defaultfilename");
+    this._preparePPiframe(elid, function(iframe) {
+      let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
+      let fpCallback = function fpCallback_done(aResult) {
+        if (aResult == Ci.nsIFilePicker.returnOK ||
+            aResult == Ci.nsIFilePicker.returnReplace) {
+          let stream = Cc["@mozilla.org/network/file-output-stream;1"].
+                       createInstance(Ci.nsIFileOutputStream);
+          stream.init(fp.file, -1, PERMISSIONS_RWUSR, 0);
+
+          let serializer = new XMLSerializer();
+          let output = serializer.serializeToString(iframe.contentDocument);
+          output = output.replace(/<!DOCTYPE (.|\n)*?]>/,
+            '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" ' +
+            '"DTD/xhtml1-strict.dtd">');
+          output = Weave.Utils.encodeUTF8(output);
+          stream.write(output, output.length);
+        }
+      };
+
+      fp.init(window, dialogTitle, Ci.nsIFilePicker.modeSave);
+      fp.appendFilters(Ci.nsIFilePicker.filterHTML);
+      fp.defaultString = defaultSaveName;
+      fp.open(fpCallback);
+      return false;
+    });
+  },
+
+  /**
+   * validatePassword
+   *
+   * @param el1 : the first textbox element in the form
+   * @param el2 : the second textbox element, if omitted it's an update form
+   * 
+   * returns [valid, errorString]
+   */
+  validatePassword: function (el1, el2) {
+    let valid = false;
+    let val1 = el1.value;
+    let val2 = el2 ? el2.value : "";
+    let error = "";
+
+    if (!el2)
+      valid = val1.length >= Weave.MIN_PASS_LENGTH;
+    else if (val1 && val1 == Weave.Service.identity.username)
+      error = "change.password.pwSameAsUsername";
+    else if (val1 && val1 == Weave.Service.identity.account)
+      error = "change.password.pwSameAsEmail";
+    else if (val1 && val1 == Weave.Service.identity.basicPassword)
+      error = "change.password.pwSameAsPassword";
+    else if (val1 && val2) {
+      if (val1 == val2 && val1.length >= Weave.MIN_PASS_LENGTH)
+        valid = true;
+      else if (val1.length < Weave.MIN_PASS_LENGTH)
+        error = "change.password.tooShort";
+      else if (val1 != val2)
+        error = "change.password.mismatch";
+    }
+    let errorString = error ? Weave.Utils.getErrorString(error) : "";
+    return [valid, errorString];
+  }
+};