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evaporate.js
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/*Copyright (c) 2014, TT Labs, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the TT Labs, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
/***************************************************************************************************
* *
* version 1.5.0 *
* *
***************************************************************************************************/
(function () {
"use strict";
var FAR_FUTURE = new Date('2060-10-22');
var Evaporate = function (config) {
var PENDING = 0, EVAPORATING = 2, COMPLETE = 3, PAUSED = 4, CANCELED = 5, ERROR = 10, ABORTED = 20, PAUSING = 30, ETAG_OF_0_LENGTH_BLOB = '"d41d8cd98f00b204e9800998ecf8427e"';
var IMMUTABLE_OPTIONS = [
'maxConcurrentParts',
'logging',
'cloudfront',
'aws_url',
'encodeFilename',
'computeContentMd5',
'allowS3ExistenceOptimization',
'onlyRetryForSameFileName',
'timeUrl',
'cryptoMd5Method',
'cryptoHexEncodedHash256',
'aws_key',
'awsRegion',
'awsSignatureVersion',
'evaporateChanged'
];
var _ = this;
var files = [],
evaporatingCount = 0;
function noOpLogger() { return {d: function () {}, w: function () {}, e: function () {}}; }
var l = noOpLogger();
var con = extend({
bucket: null,
logging: true,
maxConcurrentParts: 5,
partSize: 6 * 1024 * 1024,
retryBackoffPower: 2,
maxRetryBackoffSecs: 300,
progressIntervalMS: 500,
cloudfront: false,
s3Acceleration: false,
encodeFilename: true,
computeContentMd5: false,
allowS3ExistenceOptimization: false,
onlyRetryForSameFileName: false,
timeUrl: null,
cryptoMd5Method: null,
cryptoHexEncodedHash256: null,
aws_key: null,
awsRegion: null,
awsSignatureVersion: '2',
s3FileCacheHoursAgo: null, // Must be a whole number of hours. Will be interpreted as negative (hours in the past).
signParams:{},
signHeaders: {},
awsLambda: null,
awsLambdaFunction: null,
maxFileSize: null,
signResponseHandler: null,
xhrWithCredentials: false,
// undocumented
testUnsupported: false,
simulateStalling: false,
simulateErrors: false,
evaporateChanged: function () {}
}, config);
if (console && console.log) {
l = console;
l.d = l.log;
l.w = console.warn ? l.warn : l.d;
l.e = console.error ? l.error : l.d;
}
this.supported = !(
typeof File === 'undefined' ||
typeof Blob === 'undefined' ||
typeof (
Blob.prototype['webkitSlice'] ||
Blob.prototype['mozSlice']||
Blob.prototype['slice']) === 'undefined' ||
!!config.testUnsupported);
if (!con.bucket) {
l.e("The AWS 'bucket' option must be present.");
return;
}
if (!this.supported) {
l.e('The browser does not support the necessary features of File and Blob [webkitSlice || mozSlice || slice]');
return;
}
if (con.computeContentMd5) {
this.supported = typeof FileReader.prototype.readAsArrayBuffer !== 'undefined';
if (!this.supported) {
l.e('The browser\'s FileReader object does not support readAsArrayBuffer');
return;
}
if (typeof con.cryptoMd5Method !== 'function') {
l.e('Option computeContentMd5 has been set but cryptoMd5Method is not defined.');
return;
}
if (con.awsSignatureVersion === '4') {
if (typeof con.cryptoHexEncodedHash256 !== 'function') {
l.e('Option awsSignatureVersion is 4 but cryptoHexEncodedHash256 is not defined.');
return;
}
}
} else if (con.awsSignatureVersion === '4') {
l.e('Option awsSignatureVersion is 4 but computeContentMd5 is not enabled.');
return;
}
if (!con.logging) {
// Reset the logger to be a no_op
l = noOpLogger();
}
var historyCache = {
supported: (function () {
var result = false;
if (typeof window !== 'undefined') {
if (!('localStorage' in window)) {
return result;
}
} else {
return result;
}
// Try to use storage (it might be disabled, e.g. user is in private mode)
try {
localStorage.setItem('___test', 'OK');
var test = localStorage.getItem('___test');
localStorage.removeItem('___test');
result = test === 'OK';
} catch (e) {
return result;
}
return result;
})(),
getItem: function (key) {
if (this.supported) {
return localStorage.getItem(key)
}
},
setItem: function (key, value) {
if (this.supported) {
return localStorage.setItem(key, value);
}
},
clear: function () {
if (this.supported) {
return localStorage.clear();
}
},
key: function (key) {
if (this.supported) {
return localStorage.key(key);
}
},
removeItem: function (key) {
if (this.supported) {
return localStorage.removeItem(key);
}
}
};
var AWS_URL;
if (con.s3Acceleration) {
AWS_URL = ['https://', con.bucket, '.s3-accelerate.amazonaws.com'].join('');
con.cloudfront = true;
} else {
AWS_URL = con.aws_url || ["https://", (con.cloudfront ? con.bucket + "." : ""), "s3.amazonaws.com"].join("");
}
var AWS_HOST = uri(AWS_URL).hostname;
var _d = new Date(),
HOURS_AGO = new Date(_d.setHours(_d.getHours() - (con.s3FileCacheHoursAgo || -100))),
localTimeOffset = 0;
if (con.timeUrl) {
var xhr = new XMLHttpRequest();
xhr.open("GET", con.timeUrl + '?requestTime=' + new Date().getTime());
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
var server_date = new Date(Date.parse(xhr.responseText)),
now = new Date();
localTimeOffset = now - server_date;
l.d('localTimeOffset is', localTimeOffset, 'ms');
}
}
};
xhr.onerror = function () {
l.e('xhr error timeUrl', xhr);
};
xhr.send();
}
//con.simulateStalling = true
_.add = function (file, pConfig) {
var c = extend(pConfig, {});
IMMUTABLE_OPTIONS.map(function (a) { delete c[a]; });
var fileConfig = extend(con, c);
l.d('add');
var err;
if (typeof file === 'undefined') {
return 'Missing file';
}
if (fileConfig.maxFileSize && file.file.size > fileConfig.maxFileSize) {
return 'File size too large. Maximum size allowed is ' + fileConfig.maxFileSize;
}
if (typeof file.name === 'undefined') {
err = 'Missing attribute: name ';
} else if (fileConfig.encodeFilename) {
file.name = encodeURIComponent(file.name); // prevent signature fail in case file name has spaces
}
/*if (!(file.file instanceof File)){
err += '.file attribute must be instanceof File';
}*/
if (err) { return err; }
var newId = addFile(file, fileConfig);
asynProcessQueue();
return newId;
};
_.cancel = function (id) {
l.d('cancel ', id);
if (files[id]) {
files[id].stop();
return true;
} else {
return false;
}
};
_.pause = function (id, options) {
options = options || {};
var force = options.force === 'undefined' ? false : options.force,
typeOfId = typeof id;
if (typeOfId === 'undefined') {
l.d('Pausing all file uploads');
files.forEach(function (file) {
if ([PENDING, EVAPORATING, ERROR].indexOf(file.status) > -1) {
file.pause(force);
}
});
} else if (typeof files[id] === 'undefined') {
l.w('Cannot pause a file that has not been added.');
} else if (files[id].status === PAUSED) {
l.w('Cannot pause a file that is already paused. Status:', files[id].status);
} else {
files[id].pause(force);
}
};
_.resume = function (id) {
var PAUSED_STATUSES = [PAUSED, PAUSING];
if (typeof id === 'undefined') {
l.d('Resuming all file uploads');
files.forEach(function (file) {
if (PAUSED_STATUSES.indexOf(file.status) > -1) {
file.resume();
}
});
} else if (typeof files[id] === 'undefined') {
l.w('Cannot pause a file that does not exist.');
} else if (PAUSED_STATUSES.indexOf(files[id].status) === -1) {
l.w('Cannot resume a file that has not been paused. Status:', files[id].status);
} else {
files[id].resume();
}
};
_.forceRetry = function () {};
function addFile(file, fileConfig) {
var id = files.length;
files.push(new FileUpload(extend({
started: function () {},
progress: function () {},
complete: function () {},
cancelled: function () {},
paused: function () {},
resumed: function () {},
pausing: function () {},
info: function () {},
warn: function () {},
error: function () {},
xAmzHeadersAtInitiate: {},
notSignedHeadersAtInitiate: {},
xAmzHeadersAtUpload: {},
xAmzHeadersAtComplete: {}
}, file, {
id: id,
status: PENDING,
priority: 0,
onStatusChange: onFileUploadStatusChange,
loadedBytes: 0,
sizeBytes: file.file.size,
eTag: ''
}), fileConfig));
return id;
}
function onFileUploadStatusChange() {
l.d('onFileUploadStatusChange');
processQueue();
}
function asynProcessQueue() {
setTimeout(processQueue, 1);
}
function processQueue() {
l.d('processQueue length: ' + files.length);
var next = -1, priorityOfNext = -1, readyForNext = true;
files.forEach(function (file, i) {
if (file.priority > priorityOfNext && file.status === PENDING) {
next = i;
priorityOfNext = file.priority;
}
if (file.status === EVAPORATING) {
readyForNext = false;
}
});
if (readyForNext && next >= 0) {
files[next].start();
}
}
function FileUpload(file, con) {
var me = this, s3Parts = [], partsOnS3 = [], partsToUpload = [], progressTotalInterval, progressPartsInterval, countUploadAttempts = 0,
countInitiateAttempts = 0, countCompleteAttempts = 0,
partsInProcess = [], fileTotalBytesUploaded = 0;
extend(me,file);
function evaporatingCnt(incr) {
evaporatingCount = Math.max(0, evaporatingCount + incr);
con.evaporateChanged(me, evaporatingCount);
}
me.start = function () {
l.d('starting FileUpload ' + me.id);
me.started(me.id);
setStatus(EVAPORATING);
var awsKey = me.name;
getUnfinishedFileUpload();
if (typeof me.uploadId === 'undefined') {
initiateUpload(awsKey);
} else {
if (typeof me.eTag === 'undefined' || !me.firstMd5Digest) {
getUploadParts(0);
} else {
var reader = new FileReader();
reader.onloadend = function () {
var md5_digest = con.cryptoMd5Method.call(this, this.result);
if (con.allowS3ExistenceOptimization && me.firstMd5Digest === md5_digest) {
headObject(awsKey);
} else {
me.firstMd5Digest = md5_digest; // let's store the digest to avoid having to calculate it again
initiateUpload(awsKey);
}
};
reader.readAsArrayBuffer(getFilePart(me.file, 0, con.partSize));
}
}
};
me.stop = function () {
l.d('stopping FileUpload ', me.id);
me.cancelled();
setStatus(CANCELED);
me.info('Canceling uploads...');
cancelAllRequests();
};
me.pause = function (force) {
l.d('pausing FileUpload ', me.id);
me.info('Pausing uploads...');
if (force) {
l.d('Pause requests to force abort parts that are evaporating');
abortParts();
setStatus(PAUSED);
me.paused();
} else {
if (me.status === ERROR) {
me.statusBeforePause = me.status;
} else {
delete me.statusBeforePause;
}
setStatus(PAUSING);
me.pausing();
}
};
me.resume = function () {
l.d('resuming FileUpload ', me.id);
setStatus(me.statusBeforePause || PENDING);
me.resumed();
};
function addPartToProcessing(part) {
partsInProcess.push(part.part);
}
function removePartFromProcessing(part) {
removeAtIndex(partsInProcess, part.part);
removeAtIndex(partsToUpload, part.part);
evaporatingCnt(-1);
if (partsInProcess.length === 0 && me.status == PAUSING) {
me.status = PAUSED;
me.paused();
}
}
function removeAtIndex(a, i) {
var idx = a.indexOf(i);
if (idx > -1) {
a.splice(idx, 1);
}
}
function setStatus(s) {
if ([COMPLETE, ERROR, CANCELED, ABORTED, PAUSED].indexOf(s) > -1) {
stopMonitorProgress();
}
me.status = s;
me.onStatusChange();
}
function abortParts() {
var partList = [];
partsInProcess.forEach(function (i) {
partList.push(i);
});
partList.forEach(function (i) {
abortPart(i, true);
});
monitorTotalProgress();
}
function cancelAllRequests() {
l.d('cancelAllRequests()');
abortUpload();
}
function processFileParts() {
if (con.computeContentMd5 && me.file.size > 0) {
processPartsListWithMd5Digests();
} else {
createUploadFile();
processPartsList();
}
}
function initiateUpload(awsKey) { // see: http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadInitiate.html
var initiate = {
method: 'POST',
path: getPath() + '?uploads',
step: 'initiate',
x_amz_headers: me.xAmzHeadersAtInitiate,
not_signed_headers: me.notSignedHeadersAtInitiate
},
originalStatus = me.status,
hasErrored;
if (me.contentType) {
initiate.contentType = me.contentType;
}
initiate.onErr = function (xhr) {
if (hasErrored || me.status === ABORTED || me.status === CANCELED) {
return;
}
hasErrored = true;
l.d('onInitiateError for FileUpload ' + me.id);
me.warn('Error initiating upload', getAwsResponse(xhr));
setStatus(ERROR);
xhr.abort();
setTimeout(function () {
if (me.status !== ABORTED && me.status !== CANCELED) {
me.status = originalStatus;
initiateUpload(awsKey);
}
}, backOffWait(countInitiateAttempts++));
};
initiate.on200 = function (xhr) {
var match = xhr.response.match(/<UploadId>(.+)<\/UploadId>/);
if (match && match[1]) {
me.uploadId = match[1];
me.awsKey = awsKey;
l.d('requester success. got uploadId ' + me.uploadId);
makeParts();
processFileParts();
} else {
initiate.onErr(xhr);
}
};
setupRequest(initiate);
authorizedSend(initiate);
monitorProgress();
}
function uploadPart(partNumber) { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadUploadPart.html
var backOff, hasErrored, upload, part;
part = s3Parts[partNumber];
part.status = EVAPORATING;
countUploadAttempts++;
evaporatingCnt(+1);
part.loadedBytesPrevious = null;
backOff = backOffWait(part.attempts++);
l.d('uploadPart #' + partNumber + ' will wait ' + backOff + 'ms to try');
upload = {
method: 'PUT',
path: getPath() + '?partNumber=' + partNumber + '&uploadId=' + me.uploadId,
step: 'upload #' + partNumber,
x_amz_headers: me.xAmzHeadersAtUpload,
md5_digest: part.md5_digest,
contentSha256: "UNSIGNED-PAYLOAD",
attempts: part.attempts,
part: part
};
upload.onErr = function (xhr, isOnError) {
removePartFromProcessing(part);
if ([CANCELED, ABORTED, PAUSED, PAUSING].indexOf(me.status) > -1) {
return;
}
var msg = 'problem uploading part #' + partNumber + ', http status: ' + xhr.status +
', hasErrored: ' + !!hasErrored + ', part status: ' + part.status +
', readyState: ' + xhr.readyState + (isOnError ? ', isOnError' : '');
l.w(msg);
me.warn(msg);
if (hasErrored) {
return;
}
hasErrored = true;
if (xhr.status === 404) {
var errMsg = '404 error resulted in abortion of both this part and the entire file.';
l.w(errMsg + ' Server response: ' + xhr.response);
me.error(errMsg);
part.status = ABORTED;
abortUpload();
} else {
part.status = ERROR;
part.loadedBytes = 0;
var awsResponse = getAwsResponse(xhr);
if (awsResponse.code) {
l.e('AWS Server response: code="' + awsResponse.code + '", message="' + awsResponse.msg + '"');
}
processPartsList();
}
xhr.abort();
};
upload.on200 = function (xhr) {
var eTag = xhr.getResponseHeader('ETag'), msg;
l.d('uploadPart 200 response for part #' + partNumber + ' ETag: ' + eTag);
if (part.isEmpty || (eTag !== ETAG_OF_0_LENGTH_BLOB)) { // issue #58
part.eTag = eTag;
part.status = COMPLETE;
removePartFromProcessing(part);
} else {
part.status = ERROR;
part.loadedBytes = 0;
msg = 'eTag matches MD5 of 0 length blob for part #' + partNumber + ' Retrying part.';
l.w(msg);
me.warn(msg);
}
processPartsList();
};
upload.onProgress = function (evt) {
part.loadedBytes = evt.loaded;
};
upload.toSend = function () {
var slice = getFilePart(me.file, part.start, part.end);
l.d('part # ' + partNumber + ' (bytes ' + part.start + ' -> ' + part.end + ') reported length: ' + slice.size);
if (!part.isEmpty && slice.size === 0) { // issue #58
l.w(' *** WARN: blob reporting size of 0 bytes. Will try upload anyway..');
}
return slice;
};
upload.onFailedAuth = function () {
var msg = 'onFailedAuth for uploadPart #' + partNumber + '. Will set status to ERROR';
l.w(msg);
me.warn(msg);
part.status = ERROR;
part.loadedBytes = 0;
processPartsList();
};
setupRequest(upload);
setTimeout(function () {
if ([ABORTED, PAUSED, CANCELED].indexOf(me.status) === -1) {
addPartToProcessing(part);
authorizedSend(upload);
l.d('upload #', partNumber, upload);
}
}, backOff);
part.uploader = upload;
}
function abortPart(partNumber, clearReadyStateCallback) {
var part = s3Parts[partNumber];
if (part.currentXhr) {
if (!!clearReadyStateCallback) {
part.currentXhr.onreadystatechange = function () {
if (part.currentXhr.readyState === 4) {
evaporatingCnt(-1);
}
};
}
part.currentXhr.abort();
part.loadedBytes = 0;
}
}
function completeUpload() { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadComplete.html
l.d('completeUpload');
me.info('will attempt to complete upload');
var completeDoc = [],
originalStatus = me.status,
hasErrored;
completeDoc.push('<CompleteMultipartUpload>');
s3Parts.forEach(function (part, partNumber) {
if (partNumber > 0) {
completeDoc.push(['<Part><PartNumber>', partNumber, '</PartNumber><ETag>', part.eTag, '</ETag></Part>'].join(""));
}
});
completeDoc.push('</CompleteMultipartUpload>');
var complete = {
method: 'POST',
contentType: 'application/xml; charset=UTF-8',
path: getPath() + '?uploadId=' + me.uploadId,
x_amz_headers: me.xAmzHeadersAtComplete,
step: 'complete'
};
complete.onErr = function (xhr) {
if (hasErrored || me.status === ABORTED || me.status === CANCELED) {
return;
}
hasErrored = true;
var msg = 'Error completing upload.';
l.w(msg, getAwsResponse(xhr));
me.error(msg);
setStatus(ERROR);
xhr.abort();
setTimeout(function () {
if (me.status !== ABORTED && me.status !== CANCELED) {
me.status = originalStatus;
completeUpload();
monitorProgress();
}
}, backOffWait(countCompleteAttempts++));
};
complete.on200 = function (xhr) {
var oDOM = parseXml(xhr.responseText),
result = oDOM.getElementsByTagName("CompleteMultipartUploadResult")[0];
me.eTag = nodeValue(result, "ETag");
me.complete(xhr, me.name);
completeUploadFile();
};
complete.toSend = function () {
return completeDoc.join("");
};
setupRequest(complete);
authorizedSend(complete);
}
function headObject(awsKey) { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadComplete.html
l.d('headObject');
me.info('will attempt to verify existence of the file');
var head_object = {
method: 'HEAD',
path: getPath(),
step: 'head_object'
};
head_object.onErr = function () {
var msg = 'Error completing head object. Will re-upload file.';
l.w(msg);
initiateUpload(awsKey);
};
head_object.on200 = function (xhr) {
var eTag = xhr.getResponseHeader('Etag');
if (eTag === me.eTag) {
l.d('headObject found matching object on S3.');
me.progress(1.0);
me.complete(xhr, me.name);
setStatus(COMPLETE);
} else {
l.d('headObject not found on S3.');
initiateUpload(awsKey);
}
};
setupRequest(head_object);
authorizedSend(head_object);
}
var numDigestsProcessed = 0,
numParts = -1;
function computePartMd5Digest(part) {
return function () {
var s = me.status;
if ([ERROR, CANCELED, ABORTED].indexOf(s) > -1) {
return;
}
var md5_digest = con.cryptoMd5Method.call(this, this.result);
l.d(['part #', part.part, ' MD5 digest is ', md5_digest].join(''));
part.md5_digest = md5_digest;
if (part.part === 1) {
createUploadFile();
}
delete part.reader; // release potentially large memory allocation
numDigestsProcessed += 1;
if (evaporatingCount < con.maxConcurrentParts) {
processPartsList();
}
if (numDigestsProcessed === numParts) {
l.d('All parts have MD5 digests');
}
setTimeout(processPartsListWithMd5Digests, 1500);
}
}
function processPartsListWithMd5Digests() {
// We need the request body to compute the MD5 checksum but the body is only available
// as a FileReader object whose value is fetched asynchronously.
// This method delays submitting the part for upload until its MD5 digest is ready
var completed = 1;
for (var i = 1; i <= numParts; i++) {
var part = s3Parts[i];
if (part.status === COMPLETE) {
completed += 1;
} else if (part.md5_digest === null) {
if (i > 1 || typeof me.firstMd5Digest === 'undefined') {
part.reader = new FileReader();
part.reader.onloadend = computePartMd5Digest(part);
part.reader.readAsArrayBuffer(getFilePart(me.file, part.start, part.end));
break;
} else { // We already calculated the first part's md5_digest
part.md5_digest = me.firstMd5Digest;
createUploadFile();
processPartsList();
}
}
}
if (completed === s3Parts.length) {
setStatus(COMPLETE);
me.progress(1.0);
}
}
function abortUpload() { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadAbort.html
l.d('abortUpload');
me.info('will attempt to abort the upload');
abortParts();
if(typeof me.uploadId === 'undefined') {
setStatus(ABORTED);
return;
}
var abort = {
method: 'DELETE',
path: getPath() + '?uploadId=' + me.uploadId,
step: 'abort',
successStatus: 204
};
abort.onErr = function () {
var msg = 'Error aborting upload.';
l.w(msg);
me.error(msg);
};
abort.on200 = function () {
setStatus(ABORTED);
checkForParts();
};
setupRequest(abort);
authorizedSend(abort);
}
function checkForParts() { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadListParts.html
l.d('listParts');
me.info('list parts');
var list = {
method: 'GET',
path: getPath() + '?uploadId=' + me.uploadId,
step: 'list'
};
list.onErr = function (xhr) {
if (xhr.status === 404) {
// Success! Parts are not found because the uploadid has been cleared
removeUploadFile();
me.info('upload canceled');
} else {
var msg = 'Error listing parts.';
l.w(msg, getAwsResponse(xhr));
me.error(msg);
}
};
list.on200 = function (xhr) {
var oDOM = parseXml(xhr.responseText);
var domParts = oDOM.getElementsByTagName("Part");
if (domParts.length) { // Some parts are still uploading
l.d('Parts still found after abort...waiting.');
setTimeout(function () { abortUpload(); }, 1000);
} else {
me.info('upload canceled');
}
};
setupRequest(list);
authorizedSend(list);
}
function getUploadParts(partNumberMarker) { //http://docs.amazonwebservices.com/AmazonS3/latest/API/mpUploadListParts.html
l.d('getUploadParts() for uploadId starting at part #', partNumberMarker);
me.info('getUploadParts() for uploadId starting at part #', partNumberMarker);
var list = {
method: 'GET',
path: getPath() + '?uploadId=' + me.uploadId,
query_string: "&part-number-marker=" + partNumberMarker,
step: 'get upload parts'
};
if (con.awsSignatureVersion === '4') {
list.path = [getPath(), '?uploadId=', me.uploadId, "&part-number-marker=" + partNumberMarker].join("");
}
list.onErr = function (xhr) {
if (xhr.status === 404) {
// Success! Upload is no longer recognized, so there is nothing to fetch
me.info(['uploadId ', me.uploadId, ' does not exist.'].join(''));
removeUploadFile();
monitorProgress();
makeParts();
processPartsList();
} else {
var msg = 'Error listing parts for getUploadParts() starting at part # ' + partNumberMarker;
l.w(msg, getAwsResponse(xhr));
me.error(msg);
}
};
list.on200 = function (xhr) {
me.info(['uploadId', me.uploadId, 'is not complete. Fetching parts from part marker=', partNumberMarker].join(''));
var oDOM = parseXml(xhr.responseText),
listPartsResult = oDOM.getElementsByTagName("ListPartsResult")[0],
isTruncated = nodeValue(listPartsResult, "IsTruncated") === 'true',
uploadedParts = oDOM.getElementsByTagName("Part"),
uploadedPart,
parts_len = uploadedParts.length,
cp, partSize;
for (var i = 0; i < parts_len; i++) {
cp = uploadedParts[i];
partSize = parseInt(nodeValue(cp, "Size"));
fileTotalBytesUploaded += partSize;
partsOnS3.push({
eTag: nodeValue(cp, "ETag"),
partNumber: parseInt(nodeValue(cp, "PartNumber")),
size: partSize,
LastModified: nodeValue(cp, "LastModified")
});
}
oDOM = uploadedParts = null; // We don't need these potentially large objects any longer
if (isTruncated) {
var nextPartNumberMarker = nodeValue(listPartsResult, "NextPartNumberMarker");
getUploadParts(nextPartNumberMarker); // let's fetch the next set of parts
} else {
makeParts();
partsOnS3.forEach(function (cp) {
uploadedPart = makePart(cp.partNumber, COMPLETE, cp.size);
uploadedPart.eTag = cp.eTag;
uploadedPart.attempts = 1;
uploadedPart.loadedBytes = cp.size;
uploadedPart.loadedBytesPrevious = cp.size;
uploadedPart.finishedUploadingAt = cp.LastModified;
uploadedPart.md5_digest = 'n/a';
s3Parts[cp.partNumber] = uploadedPart;
});
monitorProgress();
processFileParts();
}
listPartsResult = null; // We don't need these potentially large object any longer