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66 lines
2.5 KiB
66 lines
2.5 KiB
4 years ago
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'use strict';
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const {
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isFunc,
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debugLog,
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moveFile,
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promiseCallback,
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checkAndMakeDir,
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saveBufferToFile
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} = require('./utilities');
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/**
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* Returns Local function that moves the file to a different location on the filesystem
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* which takes two function arguments to make it compatible w/ Promise or Callback APIs
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* @param {String} filePath - destination file path.
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* @param {Object} options - file factory options.
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* @param {Object} fileUploadOptions - middleware options.
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* @returns {Function}
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*/
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const moveFromTemp = (filePath, options, fileUploadOptions) => (resolve, reject) => {
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debugLog(fileUploadOptions, `Moving temporary file ${options.tempFilePath} to ${filePath}`);
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moveFile(options.tempFilePath, filePath, promiseCallback(resolve, reject));
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};
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/**
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* Returns Local function that moves the file from buffer to a different location on the filesystem
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* which takes two function arguments to make it compatible w/ Promise or Callback APIs
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* @param {String} filePath - destination file path.
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* @param {Object} options - file factory options.
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* @param {Object} fileUploadOptions - middleware options.
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* @returns {Function}
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*/
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const moveFromBuffer = (filePath, options, fileUploadOptions) => (resolve, reject) => {
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debugLog(fileUploadOptions, `Moving uploaded buffer to ${filePath}`);
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saveBufferToFile(options.buffer, filePath, promiseCallback(resolve, reject));
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};
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module.exports = (options, fileUploadOptions = {}) => {
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// see: https://github.com/richardgirges/express-fileupload/issues/14
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// firefox uploads empty file in case of cache miss when f5ing page.
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// resulting in unexpected behavior. if there is no file data, the file is invalid.
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// if (!fileUploadOptions.useTempFiles && !options.buffer.length) return;
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// Create and return file object.
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return {
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name: options.name,
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data: options.buffer,
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size: options.size,
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encoding: options.encoding,
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tempFilePath: options.tempFilePath,
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truncated: options.truncated,
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mimetype: options.mimetype,
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md5: options.hash,
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mv: (filePath, callback) => {
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// Define a propper move function.
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const moveFunc = fileUploadOptions.useTempFiles
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? moveFromTemp(filePath, options, fileUploadOptions)
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: moveFromBuffer(filePath, options, fileUploadOptions);
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// Create a folder for a file.
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checkAndMakeDir(fileUploadOptions, filePath);
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// If callback is passed in, use the callback API, otherwise return a promise.
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return isFunc(callback) ? moveFunc(callback) : new Promise(moveFunc);
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}
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};
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};
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