Ghost/core/server/storage/localfilesystem.js
2014-08-23 17:15:40 +00:00

57 lines
2.1 KiB
JavaScript

// # Local File System Image Storage module
// The (default) module for storing images, using the local file system
var _ = require('lodash'),
express = require('express'),
fs = require('fs-extra'),
path = require('path'),
Promise = require('bluebird'),
errors = require('../errors'),
config = require('../config'),
utils = require('../utils'),
baseStore = require('./base'),
localFileStore;
localFileStore = _.extend(baseStore, {
// ### Save
// Saves the image to storage (the file system)
// - image is the express image object
// - returns a promise which ultimately returns the full url to the uploaded image
'save': function (image) {
var targetDir = this.getTargetDir(config.paths.imagesPath),
targetFilename;
return this.getUniqueFileName(this, image, targetDir).then(function (filename) {
targetFilename = filename;
return Promise.promisify(fs.mkdirs)(targetDir);
}).then(function () {
return Promise.promisify(fs.copy)(image.path, targetFilename);
}).then(function () {
// The src for the image must be in URI format, not a file system path, which in Windows uses \
// For local file system storage can use relative path so add a slash
var fullUrl = (config.paths.subdir + '/' + config.paths.imagesRelPath + '/' + path.relative(config.paths.imagesPath, targetFilename)).replace(new RegExp('\\' + path.sep, 'g'), '/');
return fullUrl;
}).catch(function (e) {
errors.logError(e);
return Promise.reject(e);
});
},
'exists': function (filename) {
return new Promise(function (resolve) {
fs.exists(filename, function (exists) {
resolve(exists);
});
});
},
// middleware for serving the files
'serve': function () {
// For some reason send divides the max age number by 1000
return express['static'](config.paths.imagesPath, {maxAge: utils.ONE_YEAR_MS});
}
});
module.exports = localFileStore;