uploader.basic.js

qq.FineUploaderBasic = function(o){
    var that = this;
    this._options = {
        debug: false,
        button: null,
        multiple: true,
        maxConnections: 3,
        disableCancelForFormUploads: false,
        autoUpload: true,
        request: {
            endpoint: '/server/upload',
            params: {},
            paramsInBody: true,
            customHeaders: {},
            forceMultipart: true,
            inputName: 'qqfile',
            uuidName: 'qquuid',
            totalFileSizeName: 'qqtotalfilesize'
        },
        validation: {
            allowedExtensions: [],
            sizeLimit: 0,
            minSizeLimit: 0,
            itemLimit: 0,
            stopOnFirstInvalidFile: true
        },
        callbacks: {
            onSubmit: function(id, name){},
            onSubmitted: function(id, name){},
            onComplete: function(id, name, responseJSON){},
            onCancel: function(id, name){},
            onUpload: function(id, name){},
            onUploadChunk: function(id, name, chunkData){},
            onResume: function(id, fileName, chunkData){},
            onProgress: function(id, name, loaded, total){},
            onError: function(id, name, reason, maybeXhr) {},
            onAutoRetry: function(id, name, attemptNumber) {},
            onManualRetry: function(id, name) {},
            onValidateBatch: function(fileOrBlobData) {},
            onValidate: function(fileOrBlobData) {},
            onSubmitDelete: function(id) {},
            onDelete: function(id){},
            onDeleteComplete: function(id, xhr, isError){},
            onPasteReceived: function(blob) {
                return new qq.Promise().success();
            }
        },
        messages: {
            typeError: "{file} has an invalid extension. Valid extension(s): {extensions}.",
            sizeError: "{file} is too large, maximum file size is {sizeLimit}.",
            minSizeError: "{file} is too small, minimum file size is {minSizeLimit}.",
            emptyError: "{file} is empty, please select files again without it.",
            noFilesError: "No files to upload.",
            tooManyItemsError: "Too many items ({netItems}) would be uploaded.  Item limit is {itemLimit}.",
            retryFailTooManyItems: "Retry failed - you have reached your file limit.",
            onLeave: "The files are being uploaded, if you leave now the upload will be cancelled."
        },
        retry: {
            enableAuto: false,
            maxAutoAttempts: 3,
            autoAttemptDelay: 5,
            preventRetryResponseProperty: 'preventRetry'
        },
        classes: {
            buttonHover: 'qq-upload-button-hover',
            buttonFocus: 'qq-upload-button-focus'
        },
        chunking: {
            enabled: false,
            partSize: 2000000,
            paramNames: {
                partIndex: 'qqpartindex',
                partByteOffset: 'qqpartbyteoffset',
                chunkSize: 'qqchunksize',
                totalFileSize: 'qqtotalfilesize',
                totalParts: 'qqtotalparts',
                filename: 'qqfilename'
            }
        },
        resume: {
            enabled: false,
            id: null,
            cookiesExpireIn: 7, //days
            paramNames: {
                resuming: "qqresume"
            }
        },
        formatFileName: function(fileOrBlobName) {
            if (fileOrBlobName.length > 33) {
                fileOrBlobName = fileOrBlobName.slice(0, 19) + '...' + fileOrBlobName.slice(-14);
            }
            return fileOrBlobName;
        },
        text: {
            sizeSymbols: ['kB', 'MB', 'GB', 'TB', 'PB', 'EB']
        },
        deleteFile : {
            enabled: false,
            endpoint: '/server/upload',
            customHeaders: {},
            params: {}
        },
        cors: {
            expected: false,
            sendCredentials: false
        },
        blobs: {
            defaultName: 'misc_data',
            paramNames: {
                name: 'qqblobname'
            }
        },
        paste: {
            targetElement: null,
            defaultName: 'pasted_image'
        }
    };

    qq.extend(this._options, o, true);
    this._wrapCallbacks();
    this._disposeSupport =  new qq.DisposeSupport();

    this._filesInProgress = [];
    this._storedIds = [];
    this._autoRetries = [];
    this._retryTimeouts = [];
    this._preventRetries = [];
    this._netFilesUploadedOrQueued = 0;

    this._paramsStore = this._createParamsStore("request");
    this._deleteFileParamsStore = this._createParamsStore("deleteFile");

    this._endpointStore = this._createEndpointStore("request");
    this._deleteFileEndpointStore = this._createEndpointStore("deleteFile");

    this._handler = this._createUploadHandler();
    this._deleteHandler = this._createDeleteHandler();

    if (this._options.button){
        this._button = this._createUploadButton(this._options.button);
    }

    if (this._options.paste.targetElement) {
        this._pasteHandler = this._createPasteHandler();
    }

    this._preventLeaveInProgress();
};

qq.FineUploaderBasic.prototype = {
    log: function(str, level) {
        if (this._options.debug && (!level || level === 'info')) {
            qq.log('[FineUploader] ' + str);
        }
        else if (level && level !== 'info') {
            qq.log('[FineUploader] ' + str, level);

        }
    },
    setParams: function(params, id) {
        /*jshint eqeqeq: true, eqnull: true*/
        if (id == null) {
            this._options.request.params = params;
        }
        else {
            this._paramsStore.setParams(params, id);
        }
    },
    setDeleteFileParams: function(params, id) {
        /*jshint eqeqeq: true, eqnull: true*/
        if (id == null) {
            this._options.deleteFile.params = params;
        }
        else {
            this._deleteFileParamsStore.setParams(params, id);
        }
    },
    setEndpoint: function(endpoint, id) {
        /*jshint eqeqeq: true, eqnull: true*/
        if (id == null) {
            this._options.request.endpoint = endpoint;
        }
        else {
            this._endpointStore.setEndpoint(endpoint, id);
        }
    },
    getInProgress: function(){
        return this._filesInProgress.length;
    },
    uploadStoredFiles: function(){
        "use strict";
        var idToUpload;

        while(this._storedIds.length) {
            idToUpload = this._storedIds.shift();
            this._filesInProgress.push(idToUpload);
            this._handler.upload(idToUpload);
        }
    },
    clearStoredFiles: function(){
        this._storedIds = [];
    },
    retry: function(id) {
        if (this._onBeforeManualRetry(id)) {
            this._netFilesUploadedOrQueued++;
            this._handler.retry(id);
            return true;
        }
        else {
            return false;
        }
    },
    cancel: function(id) {
        this._handler.cancel(id);
    },
    cancelAll: function() {
        var storedIdsCopy = [],
            self = this;

        qq.extend(storedIdsCopy, this._storedIds);
        qq.each(storedIdsCopy, function(idx, storedFileId) {
            self.cancel(storedFileId);
        });

        this._handler.cancelAll();
    },
    reset: function() {
        this.log("Resetting uploader...");
        this._handler.reset();
        this._filesInProgress = [];
        this._storedIds = [];
        this._autoRetries = [];
        this._retryTimeouts = [];
        this._preventRetries = [];
        this._button.reset();
        this._paramsStore.reset();
        this._endpointStore.reset();
        this._netFilesUploadedOrQueued = 0;

        if (this._pasteHandler) {
            this._pasteHandler.reset();
        }
    },
    addFiles: function(filesBlobDataOrInputs) {
        var self = this,
            verifiedFilesOrInputs = [],
            index, fileOrInput;

        if (filesBlobDataOrInputs) {
            if (!window.FileList || !(filesBlobDataOrInputs instanceof FileList)) {
                filesBlobDataOrInputs = [].concat(filesBlobDataOrInputs);
            }

            for (index = 0; index < filesBlobDataOrInputs.length; index+=1) {
                fileOrInput = filesBlobDataOrInputs[index];

                if (qq.isFileOrInput(fileOrInput)) {
                    verifiedFilesOrInputs.push(fileOrInput);
                }
                else {
                    self.log(fileOrInput + ' is not a File or INPUT element!  Ignoring!', 'warn');
                }
            }

            this.log('Processing ' + verifiedFilesOrInputs.length + ' files or inputs...');
            this._uploadFileOrBlobDataList(verifiedFilesOrInputs);
        }
    },
    addBlobs: function(blobDataOrArray) {
        if (blobDataOrArray) {
            var blobDataArray = [].concat(blobDataOrArray),
                verifiedBlobDataList = [],
                self = this;

            qq.each(blobDataArray, function(idx, blobData) {
                if (qq.isBlob(blobData) && !qq.isFileOrInput(blobData)) {
                    verifiedBlobDataList.push({
                        blob: blobData,
                        name: self._options.blobs.defaultName
                    });
                }
                else if (qq.isObject(blobData) && blobData.blob && blobData.name) {
                    verifiedBlobDataList.push(blobData);
                }
                else {
                    self.log("addBlobs: entry at index " + idx + " is not a Blob or a BlobData object", "error");
                }
            });

            this._uploadFileOrBlobDataList(verifiedBlobDataList);
        }
        else {
            this.log("undefined or non-array parameter passed into addBlobs", "error");
        }
    },
    getUuid: function(id) {
        return this._handler.getUuid(id);
    },
    getResumableFilesData: function() {
        return this._handler.getResumableFilesData();
    },
    getSize: function(id) {
        return this._handler.getSize(id);
    },
    getName: function(id) {
        return this._handler.getName(id);
    },
    getFile: function(fileOrBlobId) {
        return this._handler.getFile(fileOrBlobId);
    },
    deleteFile: function(id) {
        this._onSubmitDelete(id);
    },
    setDeleteFileEndpoint: function(endpoint, id) {
        /*jshint eqeqeq: true, eqnull: true*/
        if (id == null) {
            this._options.deleteFile.endpoint = endpoint;
        }
        else {
            this._deleteFileEndpointStore.setEndpoint(endpoint, id);
        }
    },
    getPromissoryCallbackNames: function() {
        return ["onPasteReceived"];
    },
    _createUploadButton: function(element){
        var self = this;

        var button = new qq.UploadButton({
            element: element,
            multiple: this._options.multiple && qq.isXhrUploadSupported(),
            acceptFiles: this._options.validation.acceptFiles,
            onChange: function(input){
                self._onInputChange(input);
            },
            hoverClass: this._options.classes.buttonHover,
            focusClass: this._options.classes.buttonFocus
        });

        this._disposeSupport.addDisposer(function() { button.dispose(); });
        return button;
    },
    _createUploadHandler: function(){
        var self = this;

        return new qq.UploadHandler({
            debug: this._options.debug,
            forceMultipart: this._options.request.forceMultipart,
            maxConnections: this._options.maxConnections,
            customHeaders: this._options.request.customHeaders,
            inputName: this._options.request.inputName,
            uuidParamName: this._options.request.uuidName,
            totalFileSizeParamName: this._options.request.totalFileSizeName,
            cors: this._options.cors,
            demoMode: this._options.demoMode,
            paramsInBody: this._options.request.paramsInBody,
            paramsStore: this._paramsStore,
            endpointStore: this._endpointStore,
            chunking: this._options.chunking,
            resume: this._options.resume,
            blobs: this._options.blobs,
            log: function(str, level) {
                self.log(str, level);
            },
            onProgress: function(id, name, loaded, total){
                self._onProgress(id, name, loaded, total);
                self._options.callbacks.onProgress(id, name, loaded, total);
            },
            onComplete: function(id, name, result, xhr){
                self._onComplete(id, name, result, xhr);
                self._options.callbacks.onComplete(id, name, result);
            },
            onCancel: function(id, name){
                self._onCancel(id, name);
                self._options.callbacks.onCancel(id, name);
            },
            onUpload: function(id, name){
                self._onUpload(id, name);
                self._options.callbacks.onUpload(id, name);
            },
            onUploadChunk: function(id, name, chunkData){
                self._options.callbacks.onUploadChunk(id, name, chunkData);
            },
            onResume: function(id, name, chunkData) {
                return self._options.callbacks.onResume(id, name, chunkData);
            },
            onAutoRetry: function(id, name, responseJSON, xhr) {
                self._preventRetries[id] = responseJSON[self._options.retry.preventRetryResponseProperty];

                if (self._shouldAutoRetry(id, name, responseJSON)) {
                    self._maybeParseAndSendUploadError(id, name, responseJSON, xhr);
                    self._options.callbacks.onAutoRetry(id, name, self._autoRetries[id] + 1);
                    self._onBeforeAutoRetry(id, name);

                    self._retryTimeouts[id] = setTimeout(function() {
                        self._onAutoRetry(id, name, responseJSON)
                    }, self._options.retry.autoAttemptDelay * 1000);

                    return true;
                }
                else {
                    return false;
                }
            }
        });
    },
    _createDeleteHandler: function() {
        var self = this;

        return new qq.DeleteFileAjaxRequestor({
            maxConnections: this._options.maxConnections,
            customHeaders: this._options.deleteFile.customHeaders,
            paramsStore: this._deleteFileParamsStore,
            endpointStore: this._deleteFileEndpointStore,
            demoMode: this._options.demoMode,
            cors: this._options.cors,
            log: function(str, level) {
                self.log(str, level);
            },
            onDelete: function(id) {
                self._onDelete(id);
                self._options.callbacks.onDelete(id);
            },
            onDeleteComplete: function(id, xhr, isError) {
                self._onDeleteComplete(id, xhr, isError);
                self._options.callbacks.onDeleteComplete(id, xhr, isError);
            }

        });
    },
    _createPasteHandler: function() {
        var self = this;

        return new qq.PasteSupport({
            targetElement: this._options.paste.targetElement,
            callbacks: {
                log: function(str, level) {
                    self.log(str, level);
                },
                pasteReceived: function(blob) {
                    var pasteReceivedCallback = self._options.callbacks.onPasteReceived,
                        promise = pasteReceivedCallback(blob);

                    if (promise.then) {
                        promise.then(function(successData) {
                            self._handlePasteSuccess(blob, successData);
                        }, function(failureData) {
                            self.log("Ignoring pasted image per paste received callback.  Reason = '" + failureData + "'");
                        });
                    }
                    else {
                        self.log("Promise contract not fulfilled in pasteReceived callback handler!  Ignoring pasted item.", "error");
                    }
                }
            }
        });
    },
    _handlePasteSuccess: function(blob, extSuppliedName) {
        var extension = blob.type.split("/")[1],
            name = extSuppliedName;

        /*jshint eqeqeq: true, eqnull: true*/
        if (name == null) {
            name = this._options.paste.defaultName;
        }

        name += '.' + extension;

        this.addBlobs({
            name: name,
            blob: blob
        });
    },
    _preventLeaveInProgress: function(){
        var self = this;

        this._disposeSupport.attach(window, 'beforeunload', function(e){
            if (!self._filesInProgress.length){return;}

            var e = e || window.event;
            // for ie, ff
            e.returnValue = self._options.messages.onLeave;
            // for webkit
            return self._options.messages.onLeave;
        });
    },
    _onSubmit: function(id, name) {
        this._netFilesUploadedOrQueued++;

        if (this._options.autoUpload) {
            this._filesInProgress.push(id);
        }
    },
    _onProgress: function(id, name, loaded, total){
    },
    _onComplete: function(id, name, result, xhr) {
        if (!result.success) {
            this._netFilesUploadedOrQueued--;
        }

        this._removeFromFilesInProgress(id);
        this._maybeParseAndSendUploadError(id, name, result, xhr);
    },
    _onCancel: function(id, name){
        this._netFilesUploadedOrQueued--;

        this._removeFromFilesInProgress(id);

        clearTimeout(this._retryTimeouts[id]);

        var storedItemIndex = qq.indexOf(this._storedIds, id);
        if (!this._options.autoUpload && storedItemIndex >= 0) {
            this._storedIds.splice(storedItemIndex, 1);
        }
    },
    _isDeletePossible: function() {
        return (this._options.deleteFile.enabled &&
            (!this._options.cors.expected ||
                (this._options.cors.expected && (qq.ie10() || !qq.ie()))
                )
            );
    },
    _onSubmitDelete: function(id) {
        if (this._isDeletePossible()) {
            if (this._options.callbacks.onSubmitDelete(id) !== false) {
                this._deleteHandler.sendDelete(id, this.getUuid(id));
            }
        }
        else {
            this.log("Delete request ignored for ID " + id + ", delete feature is disabled or request not possible " +
                "due to CORS on a user agent that does not support pre-flighting.", "warn");
            return false;
        }
    },
    _onDelete: function(fileId) {},
    _onDeleteComplete: function(id, xhr, isError) {
        var name = this._handler.getName(id);

        if (isError) {
            this.log("Delete request for '" + name + "' has failed.", "error");
            this._options.callbacks.onError(id, name, "Delete request failed with response code " + xhr.status, xhr);
        }
        else {
            this._netFilesUploadedOrQueued--;
            this.log("Delete request for '" + name + "' has succeeded.");
        }
    },
    _removeFromFilesInProgress: function(id) {
        var index = qq.indexOf(this._filesInProgress, id);
        if (index >= 0) {
            this._filesInProgress.splice(index, 1);
        }
    },
    _onUpload: function(id, name){},
    _onInputChange: function(input){
        if (qq.isXhrUploadSupported()){
            this.addFiles(input.files);
        } else {
            this.addFiles(input);
        }
        this._button.reset();
    },
    _onBeforeAutoRetry: function(id, name) {
        this.log("Waiting " + this._options.retry.autoAttemptDelay + " seconds before retrying " + name + "...");
    },
    _onAutoRetry: function(id, name, responseJSON) {
        this.log("Retrying " + name + "...");
        this._autoRetries[id]++;
        this._handler.retry(id);
    },
    _shouldAutoRetry: function(id, name, responseJSON) {
        if (!this._preventRetries[id] && this._options.retry.enableAuto) {
            if (this._autoRetries[id] === undefined) {
                this._autoRetries[id] = 0;
            }

            return this._autoRetries[id] < this._options.retry.maxAutoAttempts;
        }

        return false;
    },
    //return false if we should not attempt the requested retry
    _onBeforeManualRetry: function(id) {
        var itemLimit = this._options.validation.itemLimit;

        if (this._preventRetries[id]) {
            this.log("Retries are forbidden for id " + id, 'warn');
            return false;
        }
        else if (this._handler.isValid(id)) {
            var fileName = this._handler.getName(id);

            if (this._options.callbacks.onManualRetry(id, fileName) === false) {
                return false;
            }

            if (itemLimit > 0 && this._netFilesUploadedOrQueued+1 > itemLimit) {
                this._itemError("retryFailTooManyItems", "");
                return false;
            }

            this.log("Retrying upload for '" + fileName + "' (id: " + id + ")...");
            this._filesInProgress.push(id);
            return true;
        }
        else {
            this.log("'" + id + "' is not a valid file ID", 'error');
            return false;
        }
    },
    _maybeParseAndSendUploadError: function(id, name, response, xhr) {
        //assuming no one will actually set the response code to something other than 200 and still set 'success' to true
        if (!response.success){
            if (xhr && xhr.status !== 200 && !response.error) {
                this._options.callbacks.onError(id, name, "XHR returned response code " + xhr.status, xhr);
            }
            else {
                var errorReason = response.error ? response.error : "Upload failure reason unknown";
                this._options.callbacks.onError(id, name, errorReason, xhr);
            }
        }
    },
    _uploadFileOrBlobDataList: function(fileOrBlobDataList){
        var index,
            validationDescriptors = this._getValidationDescriptors(fileOrBlobDataList),
            batchValid = this._isBatchValid(validationDescriptors);

        if (batchValid) {
            if (fileOrBlobDataList.length > 0) {
                for (index = 0; index < fileOrBlobDataList.length; index++){
                    if (this._validateFileOrBlobData(fileOrBlobDataList[index])){
                        this._upload(fileOrBlobDataList[index]);
                    } else {
                        if (this._options.validation.stopOnFirstInvalidFile){
                            return;
                        }
                    }
                }
            }
            else {
                this._itemError("noFilesError", "");
            }
        }
    },
    _upload: function(blobOrFileContainer){
        var id = this._handler.add(blobOrFileContainer);
        var name = this._handler.getName(id);

        if (this._options.callbacks.onSubmit(id, name) !== false) {
            this._onSubmit(id, name);
            this._options.callbacks.onSubmitted(id, name);

            if (this._options.autoUpload) {
                this._handler.upload(id);
            }
            else {
                this._storeForLater(id);
            }
        }
    },
    _storeForLater: function(id) {
        this._storedIds.push(id);
    },
    _isBatchValid: function(validationDescriptors) {
        //first, defer the check to the callback (ask the integrator)
        var errorMessage,
            itemLimit = this._options.validation.itemLimit,
            proposedNetFilesUploadedOrQueued = this._netFilesUploadedOrQueued + validationDescriptors.length,
            batchValid = this._options.callbacks.onValidateBatch(validationDescriptors) !== false;

        //if the callback hasn't rejected the batch, run some internal tests on the batch next
        if (batchValid) {
            if (itemLimit === 0 || proposedNetFilesUploadedOrQueued <= itemLimit) {
                batchValid = true;
            }
            else {
                batchValid = false;
                errorMessage = this._options.messages.tooManyItemsError
                    .replace(/\{netItems\}/g, proposedNetFilesUploadedOrQueued)
                    .replace(/\{itemLimit\}/g, itemLimit);
                this._batchError(errorMessage);
            }
        }

        return batchValid;
    },
    _validateFileOrBlobData: function(fileOrBlobData){
        var validationDescriptor, name, size;

        validationDescriptor = this._getValidationDescriptor(fileOrBlobData);
        name = validationDescriptor.name;
        size = validationDescriptor.size;

        if (this._options.callbacks.onValidate(validationDescriptor) === false) {
            return false;
        }

        if (qq.isFileOrInput(fileOrBlobData) && !this._isAllowedExtension(name)){
            this._itemError('typeError', name);
            return false;

        }
        else if (size === 0){
            this._itemError('emptyError', name);
            return false;

        }
        else if (size && this._options.validation.sizeLimit && size > this._options.validation.sizeLimit){
            this._itemError('sizeError', name);
            return false;

        }
        else if (size && size < this._options.validation.minSizeLimit){
            this._itemError('minSizeError', name);
            return false;
        }

        return true;
    },
    _itemError: function(code, name) {
        var message = this._options.messages[code],
            allowedExtensions = [],
            extensionsForMessage;

        function r(name, replacement){ message = message.replace(name, replacement); }

        qq.each(this._options.validation.allowedExtensions, function(idx, allowedExtension) {
                /**
                 * If an argument is not a string, ignore it.  Added when a possible issue with MooTools hijacking the
                 * `allowedExtensions` array was discovered.  See case #735 in the issue tracker for more details.
                 */
                if (qq.isString(allowedExtension)) {
                    allowedExtensions.push(allowedExtension);
                }
        });

        extensionsForMessage = allowedExtensions.join(', ').toLowerCase();

        r('{file}', this._options.formatFileName(name));
        r('{extensions}', extensionsForMessage);
        r('{sizeLimit}', this._formatSize(this._options.validation.sizeLimit));
        r('{minSizeLimit}', this._formatSize(this._options.validation.minSizeLimit));

        this._options.callbacks.onError(null, name, message);

        return message;
    },
    _batchError: function(message) {
        this._options.callbacks.onError(null, null, message);
    },
    _isAllowedExtension: function(fileName){
        var allowed = this._options.validation.allowedExtensions,
            valid = false;

        if (!allowed.length) {
            return true;
        }

        qq.each(allowed, function(idx, allowedExt) {
            /**
             * If an argument is not a string, ignore it.  Added when a possible issue with MooTools hijacking the
             * `allowedExtensions` array was discovered.  See case #735 in the issue tracker for more details.
             */
            if (qq.isString(allowedExt)) {
                /*jshint eqeqeq: true, eqnull: true*/
                var extRegex = new RegExp('\\.' + allowedExt + "$", 'i');

                if (fileName.match(extRegex) != null) {
                    valid = true;
                    return false;
                }
            }
        });

        return valid;
    },
    _formatSize: function(bytes){
        var i = -1;
        do {
            bytes = bytes / 1024;
            i++;
        } while (bytes > 99);

        return Math.max(bytes, 0.1).toFixed(1) + this._options.text.sizeSymbols[i];
    },
    _wrapCallbacks: function() {
        var self, safeCallback;

        self = this;

        safeCallback = function(name, callback, args) {
            try {
                return callback.apply(self, args);
            }
            catch (exception) {
                self.log("Caught exception in '" + name + "' callback - " + exception.message, 'error');
            }
        };

        for (var prop in this._options.callbacks) {
            (function() {
                var callbackName, callbackFunc;
                callbackName = prop;
                callbackFunc = self._options.callbacks[callbackName];
                self._options.callbacks[callbackName] = function() {
                    return safeCallback(callbackName, callbackFunc, arguments);
                };
            }());
        }
    },
    _parseFileOrBlobDataName: function(fileOrBlobData) {
        var name;

        if (qq.isFileOrInput(fileOrBlobData)) {
            if (fileOrBlobData.value) {
                // it is a file input
                // get input value and remove path to normalize
                name = fileOrBlobData.value.replace(/.*(\/|\\)/, "");
            } else {
                // fix missing properties in Safari 4 and firefox 11.0a2
                name = (fileOrBlobData.fileName !== null && fileOrBlobData.fileName !== undefined) ? fileOrBlobData.fileName : fileOrBlobData.name;
            }
        }
        else {
            name = fileOrBlobData.name;
        }

        return name;
    },
    _parseFileOrBlobDataSize: function(fileOrBlobData) {
        var size;

        if (qq.isFileOrInput(fileOrBlobData)) {
            if (!fileOrBlobData.value){
                // fix missing properties in Safari 4 and firefox 11.0a2
                size = (fileOrBlobData.fileSize !== null && fileOrBlobData.fileSize !== undefined) ? fileOrBlobData.fileSize : fileOrBlobData.size;
            }
        }
        else {
            size = fileOrBlobData.blob.size;
        }

        return size;
    },
    _getValidationDescriptor: function(fileOrBlobData) {
        var name, size, fileDescriptor;

        fileDescriptor = {};
        name = this._parseFileOrBlobDataName(fileOrBlobData);
        size = this._parseFileOrBlobDataSize(fileOrBlobData);

        fileDescriptor.name = name;
        if (size) {
            fileDescriptor.size = size;
        }

        return fileDescriptor;
    },
    _getValidationDescriptors: function(files) {
        var self = this,
            fileDescriptors = [];

        qq.each(files, function(idx, file) {
            fileDescriptors.push(self._getValidationDescriptor(file));
        });

        return fileDescriptors;
    },
    _createParamsStore: function(type) {
        var paramsStore = {},
            self = this;

        return {
            setParams: function(params, id) {
                var paramsCopy = {};
                qq.extend(paramsCopy, params);
                paramsStore[id] = paramsCopy;
            },

            getParams: function(id) {
                /*jshint eqeqeq: true, eqnull: true*/
                var paramsCopy = {};

                if (id != null && paramsStore[id]) {
                    qq.extend(paramsCopy, paramsStore[id]);
                }
                else {
                    qq.extend(paramsCopy, self._options[type].params);
                }

                return paramsCopy;
            },

            remove: function(fileId) {
                return delete paramsStore[fileId];
            },

            reset: function() {
                paramsStore = {};
            }
        };
    },
    _createEndpointStore: function(type) {
        var endpointStore = {},
        self = this;

        return {
            setEndpoint: function(endpoint, id) {
                endpointStore[id] = endpoint;
            },

            getEndpoint: function(id) {
                /*jshint eqeqeq: true, eqnull: true*/
                if (id != null && endpointStore[id]) {
                    return endpointStore[id];
                }

                return self._options[type].endpoint;
            },

            remove: function(fileId) {
                return delete endpointStore[fileId];
            },

            reset: function() {
                endpointStore = {};
            }
        };
    }
};