mirror of
https://github.com/EGroupware/egroupware.git
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280 lines
9.7 KiB
JavaScript
280 lines
9.7 KiB
JavaScript
/**
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* Copyright (C) 2013 KO GmbH <copyright@kogmbh.com>
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*
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* @licstart
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* This file is part of WebODF.
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*
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* WebODF is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Affero General Public License (GNU AGPL)
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* WebODF is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with WebODF. If not, see <http://www.gnu.org/licenses/>.
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* @licend
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*
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* @source: http://www.webodf.org/
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* @source: https://github.com/kogmbh/WebODF/
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*/
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/*global define, runtime, core, XMLHttpRequest*/
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webodfModule.define("webodf/editor/backend/pullbox/Server", [], function () {
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"use strict";
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runtime.loadClass("core.Base64");
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/**
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* @constructor
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* @implements ops.Server
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* @param {{url:string}} args
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*/
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return function PullBoxServer(args) {
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var self = this,
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token,
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/**@const*/serverCallTimeout = 10000,
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base64 = new core.Base64();
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args = args || {};
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args.url = args.url || "/WSER";
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args.sessionStateToFileUrl = args.sessionStateToFileUrl || "/SS2F";
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this.getGenesisUrl = function (sessionId) {
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return args.genesisUrl;
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};
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/**
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* @param {!Object} message
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* @param {!function(!string)} cb
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* @param {!function(!number,!string)} cbError passes the status number
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* and the statustext, or -1 if there was an exception on sending
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* @return {undefined}
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*/
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function call(message, cb, cbError) {
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var xhr = new XMLHttpRequest(),
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messageString = JSON.stringify(message);
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function handleResult() {
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if (xhr.readyState === 4) {
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if (xhr.status < 200 || xhr.status >= 300) {
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// report error
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runtime.log("Status " + String(xhr.status) + ": " +
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xhr.responseText || xhr.statusText);
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cbError(xhr.status, xhr.statusText);
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} else {
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runtime.log("Status " + String(xhr.status) + ": " +
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xhr.responseText || xhr.statusText);
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cb(xhr.responseText);
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}
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}
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}
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runtime.log("Sending message to server: " + messageString);
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// create body data for request from metadata and payload
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// do the request
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xhr.open('POST', args.url, true);
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if (token) {
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xhr.setRequestHeader("requesttoken", token);
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}
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xhr.setRequestHeader("content-type", "application/json");
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xhr.onreadystatechange = handleResult;
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xhr.timeout = serverCallTimeout;
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// TODO: seems handleResult is called on timeout as well, with xhr.status === 0
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// xhr.ontimeout = handleTimeout;
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try {
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xhr.send(messageString);
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} catch (e) {
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runtime.log("Problem with calling server: " + e);
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cbError(-1, e.message);
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}
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}
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this.call = call;
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this.getToken = function () {
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return token;
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};
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/**
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* for pre-authenticated use
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*/
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this.setToken = function (a_token) {
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token = a_token;
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};
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/*jslint unparam: true*/
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/**
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* @param {!number} timeout in milliseconds
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* @param {!function(!string)} callback
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* @return {undefined}
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*/
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this.connect = function (timeout, callback) {
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/*
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var accumulatedWaitingTime = 0;
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// already tried connecting?
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if (self.networkStatus() === "ready") {
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return;
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}
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*/
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callback("ready");
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};
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/*jslint unparam: false*/
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/**
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* @return {!string}
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*/
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this.networkStatus = function () {
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return "ready";
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};
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/**
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* @param {!string} login
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* @param {!string} password
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* @param {function(!Object)} successCb
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* @param {function(!string)} failCb
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* @return {undefined}
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*/
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this.login = function (login, password, successCb, failCb) {
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call({
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command: "login",
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args: {
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login: base64.toBase64(login),
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password: base64.toBase64(password)
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}
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}, function(responseData) {
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var response = /**@type {{token:string}}*/(runtime.fromJson(responseData));
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runtime.log("Login reply: " + responseData);
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if (response.hasOwnProperty("token")) {
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token = response.token;
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runtime.log("Caching token: " + self.getToken());
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successCb(response);
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} else {
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failCb(responseData);
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}
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}, failCb);
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};
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/**
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* @param {!string} userId
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* @param {!string} sessionId
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* @param {!function(!string)} successCb
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* @param {!function()} failCb
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* @return {undefined}
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*/
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this.joinSession = function (userId, sessionId, successCb, failCb) {
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call({
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command: "join_session",
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args: {
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user_id: userId,
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es_id: sessionId
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}
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}, function(responseData) {
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var response = /**@type {{success:string, member_id:string}}*/(runtime.fromJson(responseData));
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runtime.log("join_session reply: " + responseData);
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if (response.hasOwnProperty("success") && response.success) {
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successCb(response.member_id);
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} else {
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failCb();
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}
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}, failCb);
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};
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/**
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* @param {!string} sessionId
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* @param {!string} memberId
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* @param {!function()} successCb
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* @param {!function()} failCb
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* @return {undefined}
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*/
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this.leaveSession = function (sessionId, memberId, successCb, failCb) {
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call({
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command: "leave_session",
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args: {
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es_id: sessionId,
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member_id: memberId
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}
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}, function(responseData) {
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var response = /**@type {{success:string, member_id:string}}*/(runtime.fromJson(responseData));
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runtime.log("leave_session reply: " + responseData);
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if (response.hasOwnProperty("success") && response.success) {
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successCb();
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} else {
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failCb();
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}
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}, failCb);
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};
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/**
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* @param {!string} sessionId
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* @param {!string} memberId
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* @param {!string} seqHead
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* @param {!function(!Object=)} callback
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* @return {undefined}
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*/
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this.writeSessionStateToFile = function(sessionId, memberId, seqHead, fileData, callback) {
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// code copied from BrowserRuntime.writeFile and adapted
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var xhr = new XMLHttpRequest();
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function handleResult() {
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if (xhr.readyState === 4) {
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if (xhr.status === 0 && !xhr.responseText) {// TODO: check makes sense here as well?
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// for local files there is no difference between missing
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// and empty files, so empty files are considered as errors
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runtime.log("File " + args.sessionStateToFileUrl + " is empty.");
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} else if ((xhr.status >= 200 && xhr.status < 300) ||
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xhr.status === 0) {
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// report success
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runtime.log(null);
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} else {
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// report error
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runtime.log("Status " + String(xhr.status) + ": " +
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xhr.responseText || xhr.statusText);
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}
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callback();
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}
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}
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// do the request
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xhr.open('POST', args.sessionStateToFileUrl, true);
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if (token) {
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xhr.setRequestHeader("requesttoken", token);
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}
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xhr.setRequestHeader("webodf-session-id", sessionId);
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xhr.setRequestHeader("webodf-member-id", memberId);
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xhr.setRequestHeader("webodf-session-revision", seqHead);
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xhr.onreadystatechange = handleResult;
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// ArrayBufferView will have an ArrayBuffer property, in WebKit, XHR can send()
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// an ArrayBuffer, In Firefox, one must use sendAsBinary with a string
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if (fileData.buffer && !xhr.sendAsBinary) {
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fileData = fileData.buffer; // webkit supports sending an ArrayBuffer
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} else {
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// encode into a string, this works in FireFox >= 3
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fileData = runtime.byteArrayToString(fileData, "binary");
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}
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try {
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if (xhr.sendAsBinary) {
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xhr.sendAsBinary(fileData);
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} else {
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xhr.send(fileData);
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}
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} catch (e) {
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runtime.log("Problem with calling \"writeSessionStateToFile\" on server");
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callback(e.message);
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}
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};
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};
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});
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