/
index.js
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/
index.js
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/*jslint node: true*/
"use strict";
var FileInfo = require("./lib/fileinfo.js"),
configs = require("./lib/configs.js"),
formidable = require("formidable"),
fs = require("fs"),
path = require("path")
;
function uploadService(opts) {
var fileUploader = {},
options = configs.apply(opts),
transporter = options.storage.type === "local" ? require("./lib/transport/local.js") : require("./lib/transport/aws.js")
;
transporter = transporter(options);
fileUploader.config = options;
function setNoCacheHeaders(res) {
res.setHeader("Pragma", "no-cache");
res.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
res.setHeader("Content-Disposition", "inline; filename=\"files.json\"");
}
fileUploader.get = function(req, res, callback) {
this.config.host = req.headers.host;
setNoCacheHeaders(res);
transporter.get(callback);
};
fileUploader.post = function(req, res, callback) {
setNoCacheHeaders(res);
var form = new formidable.IncomingForm(),
tmpFiles = [],
files = [],
map = {},
fields = {},
redirect
;
this.config.host = req.headers.host;
var configs = this.config;
req.body = req.body || {};
function finish(error, fileInfo) {
if (error) return callback(error, {
files: files
}, redirect);
if (!fileInfo) return callback(null, {
files: files
}, redirect);
var allFilesProccessed = true;
files.forEach(function(file, idx) {
allFilesProccessed = allFilesProccessed && file.proccessed;
});
if (allFilesProccessed) {
callback(null, {
files: files
}, redirect);
}
}
form.uploadDir = configs.tmpDir;
form
.on("fileBegin", function(name, file) {
tmpFiles.push(file.path);
// fix #41
configs.saveFile = true;
var fileInfo = new FileInfo(file, configs, fields);
map[fileInfo.key] = fileInfo;
files.push(fileInfo);
})
.on("field", function(name, value) {
fields[name] = value;
if (name === "redirect") {
redirect = value;
}
})
.on("file", function(name, file) {
var fileInfo = map[FileInfo.getFileKey(file.path)];
fileInfo.update(file);
if (!fileInfo.validate()) {
finish(fileInfo.error);
fs.unlink(file.path);
return;
}
transporter.post(fileInfo, file, finish);
})
.on("aborted", function() {
finish("aborted");
tmpFiles.forEach(function(file) {
fs.unlink(file);
});
})
.on("error", function(e) {
console.log("form.error", e);
finish(e);
})
.on("progress", function(bytesReceived) {
if (bytesReceived > configs.maxPostSize) {
req.connection.destroy();
}
})
.on("end", function() {
//if (configs.storage.type == "local") {
// finish();
//}
}).parse(req)
;
};
fileUploader.delete = function(req, res, callback) {
transporter.delete(req, res, callback);
};
return fileUploader;
}
module.exports = uploadService;