Cordova plugin file und file-transfer geadded
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328
plugins/cordova-plugin-file-transfer/www/browser/FileTransfer.js
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328
plugins/cordova-plugin-file-transfer/www/browser/FileTransfer.js
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/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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/*global module, require*/
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var argscheck = require('cordova/argscheck'),
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FileTransferError = require('./FileTransferError');
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function getParentPath(filePath) {
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var pos = filePath.lastIndexOf('/');
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return filePath.substring(0, pos + 1);
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}
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function getFileName(filePath) {
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var pos = filePath.lastIndexOf('/');
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return filePath.substring(pos + 1);
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}
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function getUrlCredentials(urlString) {
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var credentialsPattern = /^https?\:\/\/(?:(?:(([^:@\/]*)(?::([^@\/]*))?)?@)?([^:\/?#]*)(?::(\d*))?).*$/,
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credentials = credentialsPattern.exec(urlString);
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return credentials && credentials[1];
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}
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function getBasicAuthHeader(urlString) {
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var header = null;
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// This is changed due to MS Windows doesn't support credentials in http uris
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// so we detect them by regexp and strip off from result url
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// Proof: http://social.msdn.microsoft.com/Forums/windowsapps/en-US/a327cf3c-f033-4a54-8b7f-03c56ba3203f/windows-foundation-uri-security-problem
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if (window.btoa) {
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var credentials = getUrlCredentials(urlString);
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if (credentials) {
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var authHeader = "Authorization";
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var authHeaderValue = "Basic " + window.btoa(credentials);
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header = {
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name : authHeader,
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value : authHeaderValue
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};
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}
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}
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return header;
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}
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function checkURL(url) {
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return url.indexOf(' ') === -1 ? true : false;
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}
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var idCounter = 0;
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var transfers = {};
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/**
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* FileTransfer uploads a file to a remote server.
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* @constructor
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*/
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var FileTransfer = function() {
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this._id = ++idCounter;
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this.onprogress = null; // optional callback
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};
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/**
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* Given an absolute file path, uploads a file on the device to a remote server
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* using a multipart HTTP request.
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* @param filePath {String} Full path of the file on the device
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* @param server {String} URL of the server to receive the file
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* @param successCallback (Function} Callback to be invoked when upload has completed
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* @param errorCallback {Function} Callback to be invoked upon error
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* @param options {FileUploadOptions} Optional parameters such as file name and mimetype
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* @param trustAllHosts {Boolean} Optional trust all hosts (e.g. for self-signed certs), defaults to false
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*/
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FileTransfer.prototype.upload = function(filePath, server, successCallback, errorCallback, options) {
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// check for arguments
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argscheck.checkArgs('ssFFO*', 'FileTransfer.upload', arguments);
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// Check if target URL doesn't contain spaces. If contains, it should be escaped first
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// (see https://github.com/apache/cordova-plugin-file-transfer/blob/master/doc/index.md#upload)
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if (!checkURL(server)) {
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errorCallback && errorCallback(new FileTransferError(FileTransferError.INVALID_URL_ERR, filePath, server));
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return;
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}
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options = options || {};
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var fileKey = options.fileKey || "file";
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var fileName = options.fileName || "image.jpg";
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var mimeType = options.mimeType || "image/jpeg";
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var params = options.params || {};
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var withCredentials = options.withCredentials || false;
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// var chunkedMode = !!options.chunkedMode; // Not supported
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var headers = options.headers || {};
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var httpMethod = options.httpMethod && options.httpMethod.toUpperCase() === "PUT" ? "PUT" : "POST";
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var basicAuthHeader = getBasicAuthHeader(server);
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if (basicAuthHeader) {
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server = server.replace(getUrlCredentials(server) + '@', '');
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headers[basicAuthHeader.name] = basicAuthHeader.value;
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}
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var that = this;
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var xhr = transfers[this._id] = new XMLHttpRequest();
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xhr.withCredentials = withCredentials;
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var fail = errorCallback && function(code, status, response) {
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transfers[this._id] && delete transfers[this._id];
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var error = new FileTransferError(code, filePath, server, status, response);
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errorCallback && errorCallback(error);
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};
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window.resolveLocalFileSystemURL(filePath, function(entry) {
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entry.file(function(file) {
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var reader = new FileReader();
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reader.onloadend = function() {
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var blob = new Blob([this.result], {type: mimeType});
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// Prepare form data to send to server
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var fd = new FormData();
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fd.append(fileKey, blob, fileName);
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for (var prop in params) {
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if (params.hasOwnProperty(prop)) {
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fd.append(prop, params[prop]);
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}
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}
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xhr.open(httpMethod, server);
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// Fill XHR headers
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for (var header in headers) {
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if (headers.hasOwnProperty(header)) {
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xhr.setRequestHeader(header, headers[header]);
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}
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}
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xhr.onload = function() {
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if (this.status === 200) {
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var result = new FileUploadResult(); // jshint ignore:line
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result.bytesSent = blob.size;
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result.responseCode = this.status;
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result.response = this.response;
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delete transfers[that._id];
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successCallback(result);
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} else if (this.status === 404) {
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fail(FileTransferError.INVALID_URL_ERR, this.status, this.response);
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} else {
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fail(FileTransferError.CONNECTION_ERR, this.status, this.response);
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}
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};
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xhr.ontimeout = function() {
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fail(FileTransferError.CONNECTION_ERR, this.status, this.response);
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};
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xhr.onerror = function() {
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fail(FileTransferError.CONNECTION_ERR, this.status, this.response);
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};
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xhr.onabort = function () {
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fail(FileTransferError.ABORT_ERR, this.status, this.response);
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};
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xhr.upload.onprogress = function (e) {
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that.onprogress && that.onprogress(e);
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};
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xhr.send(fd);
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// Special case when transfer already aborted, but XHR isn't sent.
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// In this case XHR won't fire an abort event, so we need to check if transfers record
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// isn't deleted by filetransfer.abort and if so, call XHR's abort method again
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if (!transfers[that._id]) {
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xhr.abort();
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}
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};
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reader.readAsArrayBuffer(file);
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}, function() {
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fail(FileTransferError.FILE_NOT_FOUND_ERR);
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});
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}, function() {
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fail(FileTransferError.FILE_NOT_FOUND_ERR);
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});
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};
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/**
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* Downloads a file form a given URL and saves it to the specified directory.
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* @param source {String} URL of the server to receive the file
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* @param target {String} Full path of the file on the device
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* @param successCallback (Function} Callback to be invoked when upload has completed
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* @param errorCallback {Function} Callback to be invoked upon error
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* @param trustAllHosts {Boolean} Optional trust all hosts (e.g. for self-signed certs), defaults to false
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* @param options {FileDownloadOptions} Optional parameters such as headers
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*/
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FileTransfer.prototype.download = function(source, target, successCallback, errorCallback, trustAllHosts, options) {
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argscheck.checkArgs('ssFF*', 'FileTransfer.download', arguments);
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// Check if target URL doesn't contain spaces. If contains, it should be escaped first
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// (see https://github.com/apache/cordova-plugin-file-transfer/blob/master/doc/index.md#download)
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if (!checkURL(source)) {
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errorCallback && errorCallback(new FileTransferError(FileTransferError.INVALID_URL_ERR, source, target));
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return;
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}
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options = options || {};
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var headers = options.headers || {};
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var withCredentials = options.withCredentials || false;
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var basicAuthHeader = getBasicAuthHeader(source);
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if (basicAuthHeader) {
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source = source.replace(getUrlCredentials(source) + '@', '');
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headers[basicAuthHeader.name] = basicAuthHeader.value;
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}
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var that = this;
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var xhr = transfers[this._id] = new XMLHttpRequest();
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xhr.withCredentials = withCredentials;
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var fail = errorCallback && function(code, status, response) {
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transfers[that._id] && delete transfers[that._id];
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// In XHR GET reqests we're setting response type to Blob
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// but in case of error we need to raise event with plain text response
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if (response instanceof Blob) {
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var reader = new FileReader();
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reader.readAsText(response);
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reader.onloadend = function(e) {
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var error = new FileTransferError(code, source, target, status, e.target.result);
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errorCallback(error);
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};
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} else {
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var error = new FileTransferError(code, source, target, status, response);
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errorCallback(error);
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}
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};
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xhr.onload = function (e) {
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var fileNotFound = function () {
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fail(FileTransferError.FILE_NOT_FOUND_ERR);
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};
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var req = e.target;
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// req.status === 0 is special case for local files with file:// URI scheme
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if ((req.status === 200 || req.status === 0) && req.response) {
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window.resolveLocalFileSystemURL(getParentPath(target), function (dir) {
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dir.getFile(getFileName(target), {create: true}, function writeFile(entry) {
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entry.createWriter(function (fileWriter) {
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fileWriter.onwriteend = function (evt) {
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if (!evt.target.error) {
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entry.filesystemName = entry.filesystem.name;
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delete transfers[that._id];
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successCallback && successCallback(entry);
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} else {
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fail(FileTransferError.FILE_NOT_FOUND_ERR);
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}
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};
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fileWriter.onerror = function () {
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fail(FileTransferError.FILE_NOT_FOUND_ERR);
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};
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fileWriter.write(req.response);
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}, fileNotFound);
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}, fileNotFound);
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}, fileNotFound);
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} else if (req.status === 404) {
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fail(FileTransferError.INVALID_URL_ERR, req.status, req.response);
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} else {
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fail(FileTransferError.CONNECTION_ERR, req.status, req.response);
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}
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};
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xhr.onprogress = function (e) {
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that.onprogress && that.onprogress(e);
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};
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xhr.onerror = function () {
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fail(FileTransferError.CONNECTION_ERR, this.status, this.response);
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};
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xhr.onabort = function () {
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fail(FileTransferError.ABORT_ERR, this.status, this.response);
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};
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xhr.open("GET", source, true);
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for (var header in headers) {
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if (headers.hasOwnProperty(header)) {
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xhr.setRequestHeader(header, headers[header]);
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}
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}
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xhr.responseType = "blob";
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xhr.send();
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};
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/**
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* Aborts the ongoing file transfer on this object. The original error
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* callback for the file transfer will be called if necessary.
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*/
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FileTransfer.prototype.abort = function() {
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if (this instanceof FileTransfer) {
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if (transfers[this._id]) {
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transfers[this._id].abort();
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delete transfers[this._id];
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}
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}
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};
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module.exports = FileTransfer;
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