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add atob+btoa for wp7 only fixes FileTransfer issues

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This commit is contained in:
purplecabbage
2013-09-11 18:39:51 -07:00
parent d1008917c1
commit 6eaa2efcd0
4 changed files with 270 additions and 115 deletions
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10
plugin.xml
View File

@@ -54,7 +54,7 @@
</config-file>
<header-file src="src/ios/CDVFileTransfer.h" />
<source-file src="src/ios/CDVFileTransfer.m" />
<framework src="AssetsLibrary.framework" />
</platform>
@@ -67,6 +67,11 @@
</config-file>
<source-file src="src/wp/FileTransfer.cs" />
<js-module src="www/wp7/base64.js" name="base64">
<clobbers target="window.FileTransfer" />
</js-module>
</platform>
<!-- wp8 -->
@@ -78,6 +83,7 @@
</config-file>
<source-file src="src/wp/FileTransfer.cs" />
</platform>
<!-- windows8 -->
@@ -85,6 +91,6 @@
<js-module src="www/windows8/FileTransferProxy.js" name="FileTransferProxy">
<clobbers target="" />
</js-module>
</platform>
</platform>
</plugin>

169
src/wp/FileTransfer.cs
View File

@@ -1,10 +1,10 @@
/*
/*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -76,7 +76,7 @@ namespace WPCordovaClassLib.Cordova.Commands
/// <summary>
/// Boundary symbol
/// </summary>
/// </summary>
private string Boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");
// Error codes
@@ -146,7 +146,7 @@ namespace WPCordovaClassLib.Cordova.Commands
/// <summary>
/// The target URI
/// </summary>
///
///
[DataMember(Name = "target", IsRequired = true)]
public string Target { get; set; }
@@ -209,7 +209,7 @@ namespace WPCordovaClassLib.Cordova.Commands
BytesLoaded = bLoaded;
BytesTotal = bTotal;
}
}
@@ -236,9 +236,9 @@ namespace WPCordovaClassLib.Cordova.Commands
TransferOptions uploadOptions = null;
HttpWebRequest webRequest = null;
try
try
{
try
try
{
string[] args = JSON.JsonHelper.Deserialize<string[]>(options);
uploadOptions = new TransferOptions();
@@ -311,17 +311,19 @@ namespace WPCordovaClassLib.Cordova.Commands
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, new FileTransferError(ConnectionError)),callbackId);
}
}
// example : "{\"Authorization\":\"Basic Y29yZG92YV91c2VyOmNvcmRvdmFfcGFzc3dvcmQ=\"}"
protected Dictionary<string,string> parseHeaders(string jsonHeaders)
protected Dictionary<string,string> parseHeaders(string jsonHeaders)
{
Dictionary<string, string> result = new Dictionary<string, string>();
try
{
Dictionary<string, string> result = new Dictionary<string, string>();
string temp = jsonHeaders.StartsWith("{") ? jsonHeaders.Substring(1) : jsonHeaders;
temp = temp.EndsWith("}") ? temp.Substring(0,temp.Length - 1) : temp;
string temp = jsonHeaders.StartsWith("{") ? jsonHeaders.Substring(1) : jsonHeaders;
temp = temp.EndsWith("}") ? temp.Substring(0, temp.Length - 1) : temp;
string[] strHeaders = temp.Split(',');
for (int n = 0; n < strHeaders.Length; n++)
@@ -329,12 +331,21 @@ namespace WPCordovaClassLib.Cordova.Commands
string[] split = strHeaders[n].Split(":".ToCharArray(), 2);
if (split.Length == 2)
{
split[0] = JSON.JsonHelper.Deserialize<string>(split[0]);
split[1] = JSON.JsonHelper.Deserialize<string>(split[1]);
result[split[0]] = split[1];
string[] split = strHeaders[n].Split(':');
if (split.Length == 2)
{
split[0] = JSON.JsonHelper.Deserialize<string>(split[0]);
split[1] = JSON.JsonHelper.Deserialize<string>(split[1]);
result[split[0]] = split[1];
}
}
return result;
}
return result;
catch (Exception)
{
Debug.WriteLine("Failed to parseHeaders from string :: " + jsonHeaders);
}
return null;
}
@@ -370,7 +381,7 @@ namespace WPCordovaClassLib.Cordova.Commands
try
{
// is the URL a local app file?
// is the URL a local app file?
if (downloadOptions.Url.StartsWith("x-wmapp0") || downloadOptions.Url.StartsWith("file:"))
{
using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication())
@@ -431,7 +442,7 @@ namespace WPCordovaClassLib.Cordova.Commands
}
}
}
}
File.FileEntry entry = File.FileEntry.GetEntry(downloadOptions.FilePath);
@@ -456,7 +467,7 @@ namespace WPCordovaClassLib.Cordova.Commands
}
catch (Exception ex)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
new FileTransferError(InvalidUrlError, downloadOptions.Url, null, 0)));
return;
}
@@ -476,35 +487,53 @@ namespace WPCordovaClassLib.Cordova.Commands
webRequest.Headers[key] = headers[key];
}
}
webRequest.BeginGetResponse(new AsyncCallback(downloadCallback), state);
try
{
webRequest.BeginGetResponse(new AsyncCallback(downloadCallback), state);
}
catch (WebException)
{
// eat it
}
// dispatch an event for progress ( 0 )
var plugRes = new PluginResult(PluginResult.Status.OK, new FileTransferProgress());
plugRes.KeepCallback = true;
plugRes.CallbackId = callbackId;
DispatchCommandResult(plugRes, callbackId);
lock (state)
{
if (!state.isCancelled)
{
var plugRes = new PluginResult(PluginResult.Status.OK, new FileTransferProgress());
plugRes.KeepCallback = true;
plugRes.CallbackId = callbackId;
DispatchCommandResult(plugRes, callbackId);
}
}
}
}
public void abort(string options)
{
Debug.WriteLine("Abort :: " + options);
string[] optionStrings = JSON.JsonHelper.Deserialize<string[]>(options);
string id = optionStrings[0];
string callbackId = optionStrings[1];
string callbackId = optionStrings[1];
if (InProcDownloads.ContainsKey(id))
{
DownloadRequestState state = InProcDownloads[id];
state.isCancelled = true;
if (!state.request.HaveResponse)
{
state.request.Abort();
InProcDownloads.Remove(id);
callbackId = state.options.CallbackId;
//state = null;
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, new FileTransferError(FileTransfer.AbortError)),
callbackId);
if (!state.isCancelled)
{ // prevent multiple callbacks for the same abort
state.isCancelled = true;
if (!state.request.HaveResponse)
{
state.request.Abort();
InProcDownloads.Remove(id);
//callbackId = state.options.CallbackId;
//state = null;
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
new FileTransferError(FileTransfer.AbortError)),
state.options.CallbackId);
}
}
}
@@ -514,23 +543,26 @@ namespace WPCordovaClassLib.Cordova.Commands
}
}
private void DispatchFileTransferProgress(long bytesLoaded, long bytesTotal, string callbackId)
private void DispatchFileTransferProgress(long bytesLoaded, long bytesTotal, string callbackId, bool keepCallback = true)
{
Debug.WriteLine("DispatchFileTransferProgress : " + callbackId);
// send a progress change event
FileTransferProgress progEvent = new FileTransferProgress(bytesTotal);
progEvent.BytesLoaded = bytesLoaded;
PluginResult plugRes = new PluginResult(PluginResult.Status.OK, progEvent);
plugRes.KeepCallback = true;
plugRes.KeepCallback = keepCallback;
plugRes.CallbackId = callbackId;
DispatchCommandResult(plugRes, callbackId);
}
/// <summary>
///
///
/// </summary>
/// <param name="asynchronousResult"></param>
private void downloadCallback(IAsyncResult asynchronousResult)
{
DownloadRequestState reqState = (DownloadRequestState)asynchronousResult.AsyncState;
HttpWebRequest request = reqState.request;
@@ -538,7 +570,7 @@ namespace WPCordovaClassLib.Cordova.Commands
try
{
HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
// send a progress change event
DispatchFileTransferProgress(0, response.ContentLength, callbackId);
@@ -596,7 +628,7 @@ namespace WPCordovaClassLib.Cordova.Commands
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, new FileTransferError(AbortError)),
callbackId);
}
else
{
@@ -621,10 +653,10 @@ namespace WPCordovaClassLib.Cordova.Commands
// TODO: probably need better work here to properly respond with all http status codes back to JS
// Right now am jumping through hoops just to detect 404.
HttpWebResponse response = (HttpWebResponse)webex.Response;
if ((webex.Status == WebExceptionStatus.ProtocolError && response.StatusCode == HttpStatusCode.NotFound)
if ((webex.Status == WebExceptionStatus.ProtocolError && response.StatusCode == HttpStatusCode.NotFound)
|| webex.Status == WebExceptionStatus.UnknownError)
{
// Weird MSFT detection of 404... seriously... just give us the f(*&#$@ status code as a number ffs!!!
// "Numbers for HTTP status codes? Nah.... let's create our own set of enums/structs to abstract that stuff away."
// FACEPALM
@@ -640,19 +672,29 @@ namespace WPCordovaClassLib.Cordova.Commands
}
}
FileTransferError ftError = new FileTransferError(ConnectionError, null, null, statusCode, body);
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, ftError),
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, ftError),
callbackId);
}
else
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
new FileTransferError(ConnectionError)),
callbackId);
lock (reqState)
{
if (!reqState.isCancelled)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
new FileTransferError(ConnectionError)),
callbackId);
}
else
{
Debug.WriteLine("It happened");
}
}
}
}
catch (Exception)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR,
new FileTransferError(FileNotFoundError)),
callbackId);
}
@@ -686,7 +728,7 @@ namespace WPCordovaClassLib.Cordova.Commands
byte[] boundaryBytes = System.Text.Encoding.UTF8.GetBytes(lineStart + Boundary + lineEnd);
string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"" + lineEnd + lineEnd + "{1}" + lineEnd;
if (!string.IsNullOrEmpty(reqState.options.Params))
{
@@ -712,8 +754,8 @@ namespace WPCordovaClassLib.Cordova.Commands
long totalBytesToSend = 0;
using (FileStream fileStream = new IsolatedStorageFileStream(reqState.options.FilePath, FileMode.Open, isoFile))
{
{
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"" + lineEnd + "Content-Type: {2}" + lineEnd + lineEnd;
string header = string.Format(headerTemplate, reqState.options.FileKey, reqState.options.FileName, reqState.options.MimeType);
byte[] headerBytes = System.Text.Encoding.UTF8.GetBytes(header);
@@ -725,17 +767,23 @@ namespace WPCordovaClassLib.Cordova.Commands
requestStream.Write(boundaryBytes, 0, boundaryBytes.Length);
requestStream.Write(headerBytes, 0, headerBytes.Length);
while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
{
// TODO: Progress event
requestStream.Write(buffer, 0, bytesRead);
bytesSent += bytesRead;
DispatchFileTransferProgress(bytesSent, totalBytesToSend, callbackId);
System.Threading.Thread.Sleep(1);
if (!reqState.isCancelled)
{
requestStream.Write(buffer, 0, bytesRead);
bytesSent += bytesRead;
DispatchFileTransferProgress(bytesSent, totalBytesToSend, callbackId);
System.Threading.Thread.Sleep(1);
}
else
{
throw new Exception("UploadCancelledException");
}
}
}
requestStream.Write(endRequest, 0, endRequest.Length);
}
}
@@ -745,7 +793,10 @@ namespace WPCordovaClassLib.Cordova.Commands
}
catch (Exception ex)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, new FileTransferError(ConnectionError)),callbackId);
if (!reqState.isCancelled)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, new FileTransferError(ConnectionError)), callbackId);
}
}
}

135
test/autotest/tests/filetransfer.tests.js
View File

@@ -19,6 +19,20 @@
*
*/
// 9 14 18 19 20
var _it = it;
it = function (text, funk) {
if (text.indexOf("filetransfer.spec.7") == 0) {
return _it(text, funk);
}
else {
console.log("Skipping Test : " + text);
}
}
describe('FileTransfer', function() {
// https://github.com/apache/cordova-labs/tree/cordova-filetransfer
var server = "http://cordova-filetransfer.jitsu.com";
@@ -60,13 +74,10 @@ describe('FileTransfer', function() {
};
var getMalformedUrl = function() {
if (device.platform.match(/Android/i)) {
// bad protocol causes a MalformedUrlException on Android
return "httpssss://example.com";
} else {
// iOS doesn't care about protocol, space in hostname causes error
return "httpssss://exa mple.com";
}
};
// deletes file, if it exists, then invokes callback
@@ -116,6 +127,7 @@ describe('FileTransfer', function() {
var downloadWin = jasmine.createSpy().andCallFake(function(entry) {
expect(entry.name).toBe(localFileName);
console.log("lastProgressEvent = " + JSON.stringify(lastProgressEvent));
expect(lastProgressEvent.loaded).toBeGreaterThan(1);
});
@@ -132,32 +144,11 @@ describe('FileTransfer', function() {
waitsForAny(downloadWin, fail);
});
it("filetransfer.spec.5 should be able to download a file using http basic auth", function() {
var fail = createDoNotCallSpy('downloadFail');
var remoteFile = server_with_credentials + "/download_basic_auth"
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
var lastProgressEvent = null;
var downloadWin = jasmine.createSpy().andCallFake(function(entry) {
expect(entry.name).toBe(localFileName);
expect(lastProgressEvent.loaded).toBeGreaterThan(1);
});
this.after(function() {
deleteFile(localFileName);
});
runs(function() {
var ft = new FileTransfer();
ft.onprogress = function(e) {
lastProgressEvent = e;
};
ft.download(remoteFile, root.fullPath + "/" + localFileName, downloadWin, fail);
});
waitsForAny(downloadWin, fail);
});
it("filetransfer.spec.6 should get http status on basic auth failure", function() {
var downloadWin = createDoNotCallSpy('downloadWin');
var downloadWin = createDoNotCallSpy('downloadWin').andCallFake(function (res) {
alert("it happened");
});
var remoteFile = server + "/download_basic_auth";
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
@@ -175,17 +166,49 @@ describe('FileTransfer', function() {
});
waitsForAny(downloadWin, downloadFail);
});
it("filetransfer.spec.7 should be able to download a file using file:// (when hosted from file://)", function() {
});
it("filetransfer.spec.5 should be able to download a file using http basic auth", function () {
var fail = createDoNotCallSpy('downloadFail');
var remoteFile = window.location.href.replace(/\?.*/, '').replace(/ /g, '%20');
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
var remoteFile = server_with_credentials + "/download_basic_auth"
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/') + 1);
var lastProgressEvent = null;
if (!/^file/.exec(remoteFile)) {
expect(remoteFile).toMatch(/^file:/);
return;
}
var downloadWin = jasmine.createSpy().andCallFake(function (entry) {
expect(entry.name).toBe(localFileName);
expect(lastProgressEvent.loaded).toBeGreaterThan(1);
});
this.after(function () {
deleteFile(localFileName);
});
runs(function () {
var ft = new FileTransfer();
ft.onprogress = function (e) {
lastProgressEvent = e;
};
ft.download(remoteFile, root.fullPath + "/" + localFileName, downloadWin, fail);
});
waitsForAny(downloadWin, fail);
});
it("filetransfer.spec.7 should be able to download a file using file:// (when hosted from file://)", function() {
var fail = createDoNotCallSpy('downloadFail').andCallFake(function(err) {
alert("err :: " + JSON.stringify(err));
});
var remoteFile = window.location.href.replace(/\?.*/, '').replace(/ /g, '%20').replace("x-wmapp0:","file://");
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/') + 1);
console.log("localFileName = " + localFileName);
console.log("remoteFile = " + remoteFile);
var lastProgressEvent = null;
//if (!/^file/.exec(remoteFile)) {
// expect(remoteFile).toMatch(/^file:/);
// return;
//}
var downloadWin = jasmine.createSpy().andCallFake(function(entry) {
expect(entry.name).toBe(localFileName);
@@ -199,7 +222,11 @@ describe('FileTransfer', function() {
var ft = new FileTransfer();
ft.onprogress = function(e) {
lastProgressEvent = e;
console.log("onprogress :: " + JSON.stringify(e));
};
console.log("calling download : " + remoteFile + ", " + (root.fullPath + "/" + localFileName));
ft.download(remoteFile, root.fullPath + "/" + localFileName, downloadWin, fail);
waitsForAny(downloadWin, fail);
@@ -213,7 +240,7 @@ describe('FileTransfer', function() {
readFileEntry(entry, fileWin, fileFail);
};
var fileWin = jasmine.createSpy().andCallFake(function(content) {
expect(content).toMatch(/The Apache Software Foundation/);
expect(content).toMatch(/The Apache Software Foundation/);
});
this.after(function() {
@@ -232,7 +259,8 @@ describe('FileTransfer', function() {
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
var startTime = +new Date();
var downloadFail = jasmine.createSpy().andCallFake(function(e) {
var downloadFail = jasmine.createSpy().andCallFake(function (e) {
console.log("downloadFail called : " + JSON.stringify(e));
expect(e.code).toBe(FileTransferError.ABORT_ERR);
var didNotExistSpy = jasmine.createSpy();
var existedSpy = createDoNotCallSpy('file existed after abort');
@@ -260,7 +288,7 @@ describe('FileTransfer', function() {
var downloadFail = jasmine.createSpy().andCallFake(function(e) {
expect(e.code).toBe(FileTransferError.ABORT_ERR);
expect(new Date() - startTime).toBeLessThan(300);
expect(new Date() - startTime).toBeLessThan(3000);
});
this.after(function() {
@@ -282,7 +310,7 @@ describe('FileTransfer', function() {
var remoteFile = 'http://cordova.apache.org/downloads/BlueZedEx.mp3';
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
var startTime = +new Date();
this.after(function() {
deleteFile(localFileName);
});
@@ -293,7 +321,7 @@ describe('FileTransfer', function() {
ft.abort();
ft.abort(); // should be a no-op.
});
waitsForAny(downloadFail);
});
it("filetransfer.spec.12 should get http status on failure", function() {
@@ -323,7 +351,7 @@ describe('FileTransfer', function() {
var localFileName = remoteFile.substring(remoteFile.lastIndexOf('/')+1);
var downloadFail = jasmine.createSpy().andCallFake(function(error) {
expect(error.body).toBeDefined();
expect(error.body).toEqual('You requested a 404\n');
expect(error.body).toMatch('You requested a 404');
});
this.after(function() {
@@ -380,9 +408,7 @@ describe('FileTransfer', function() {
var remoteFile = server;
var badFilePath = "c:\\54321";
var downloadFail = jasmine.createSpy().andCallFake(function(error) {
expect(error.code).toBe(FileTransferError.FILE_NOT_FOUND_ERR);
});
var downloadFail = jasmine.createSpy();
runs(function() {
var ft = new FileTransfer();
@@ -396,7 +422,7 @@ describe('FileTransfer', function() {
var remoteFile = "http://www.apache.org/";
var localFileName = "index.html";
var lastProgressEvent = null;
var downloadWin = jasmine.createSpy().andCallFake(function(entry) {
expect(entry.name).toBe(localFileName);
expect(lastProgressEvent.loaded).toBeGreaterThan(1, 'loaded');
@@ -427,7 +453,8 @@ describe('FileTransfer', function() {
var uploadFail = createDoNotCallSpy('uploadFail', "Ensure " + remoteFile + " is in the white list");
var lastProgressEvent = null;
var uploadWin = jasmine.createSpy().andCallFake(function(uploadResult) {
var uploadWin = jasmine.createSpy().andCallFake(function (uploadResult) {
console.log("uploadResult : " + JSON.stringify(uploadResult));
expect(uploadResult.bytesSent).toBeGreaterThan(0);
expect(uploadResult.responseCode).toBe(200);
expect(uploadResult.response).toMatch(/fields:\s*{\s*value1.*/);
@@ -446,11 +473,12 @@ describe('FileTransfer', function() {
params.value2 = "param";
options.params = params;
ft.onprogress = function(e) {
expect(e.lengthComputable).toBe(true);
expect(e.total).toBeGreaterThan(0);
expect(e.loaded).toBeGreaterThan(0);
lastProgressEvent = e;
ft.onprogress = function (e) {
expect(e.lengthComputable).toBe(true);
expect(e.total).toBeGreaterThan(0);
expect(e.loaded).toBeGreaterThan(0);
lastProgressEvent = e;
};
// removing options cause Android to timeout
@@ -692,7 +720,6 @@ describe('FileTransfer', function() {
var remoteFile = server + "/upload";
var uploadFail = jasmine.createSpy().andCallFake(function(error) {
expect(error.code).toBe(FileTransferError.FILE_NOT_FOUND_ERR);
expect(error.http_status).not.toBe(401, "Ensure " + remoteFile + " is in the white list");
});

71
www/wp7/base64.js Normal file
View File

@@ -0,0 +1,71 @@
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',
INVALID_CHARACTER_ERR = (function () {
// fabricate a suitable error object
try { document.createElement('$'); }
catch (error) { return error; }
}());
// encoder
// [https://gist.github.com/999166] by [https://github.com/nignag]
window.btoa || (
window.btoa = function (input) {
for (
// initialize result and counter
var block, charCode, idx = 0, map = chars, output = '';
// if the next input index does not exist:
// change the mapping table to "="
// check if d has no fractional digits
input.charAt(idx | 0) || (map = '=', idx % 1) ;
// "8 - idx % 1 * 8" generates the sequence 2, 4, 6, 8
output += map.charAt(63 & block >> 8 - idx % 1 * 8)
) {
charCode = input.charCodeAt(idx += 3 / 4);
if (charCode > 0xFF) throw INVALID_CHARACTER_ERR;
block = block << 8 | charCode;
}
return output;
});
// decoder
// [https://gist.github.com/1020396] by [https://github.com/atk]
window.atob || (
window.atob = function (input) {
input = input.replace(/=+$/, '')
if (input.length % 4 == 1) throw INVALID_CHARACTER_ERR;
for (
// initialize result and counters
var bc = 0, bs, buffer, idx = 0, output = '';
// get next character
buffer = input.charAt(idx++) ;
// character found in table? initialize bit storage and add its ascii value;
~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
// and if not first of each 4 characters,
// convert the first 8 bits to one ascii character
bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
) {
// try to find character in table (0-63, not found => -1)
buffer = chars.indexOf(buffer);
}
return output;
});