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91 lines
2.3 KiB
91 lines
2.3 KiB
'use strict';
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const fs = require('fs');
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const path = require('path');
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const streamifier = require('streamifier');
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const md5 = require('md5');
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module.exports = function(options, fileUploadOptions = null) {
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const output = {
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name: options.name,
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data: options.buffer,
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encoding: options.encoding,
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truncated: options.truncated,
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mimetype: options.mimetype,
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md5: () => md5(options.buffer),
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mv: function(filePath, callback) {
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// Callback is passed in, use the callback API
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if (callback) {
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if (!options.buffer) {
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doMoveFromTemp(
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() => {
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callback(null);
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},
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error => {
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callback(error);
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}
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);
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} else {
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doMoveFromBuffer(
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() => {
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callback(null);
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},
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error => {
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callback(error);
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}
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);
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}
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// Otherwise, return a promise
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} else {
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return new Promise((resolve, reject) => {
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if (options.buffer) {
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doMoveFromBuffer(resolve, reject);
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} else {
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doMoveFromTemp(resolve, reject);
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}
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});
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}
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/**
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* Local function that moves the file to a different location on the filesystem
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* Takes two function arguments to make it compatible w/ Promise or Callback APIs
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* @param {Function} successFunc
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* @param {Function} errorFunc
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*/
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function doMoveFromTemp(successFunc, errorFunc) {
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fs.rename(options.tempFilePath, path, function(err) {
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if (err) {
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errorFunc(err);
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} else {
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successFunc();
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}
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});
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}
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function doMoveFromBuffer(successFunc, errorFunc) {
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if (fileUploadOptions && fileUploadOptions.createParentPath) {
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const parentPath = path.dirname(filePath);
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if (!fs.existsSync(parentPath)) {
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fs.mkdirSync(parentPath);
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}
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}
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const fstream = fs.createWriteStream(filePath);
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streamifier.createReadStream(options.buffer).pipe(fstream);
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fstream.on('error', function(error) {
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errorFunc(error);
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});
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fstream.on('close', function() {
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successFunc();
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});
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}
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}
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};
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if (options.size) {
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output.size = options.size;
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}
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return output;
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};
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