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index.js
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index.js
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"use strict";
var FormData = require('form-data');
/* Class Imageshack
* Upload files to Imageshack
*/
var Imageshack = (function () {
/*
* Constructor
* Sets all vars
* @param configobject { api_key: "12131", email: "myaccount@mail.com", passwd: "mypassword"}
*/
function Imguploader(configobject) {
this.initerror = "";
this.doingauth = false;
// Check if Config-Object set
if(!(configobject instanceof Object)){
this.initerror = "Init-Error: Missing config-Object";
}else{
// Check if all required parameters set
if(configobject.passwd == undefined || configobject.email == undefined || configobject.api_key == undefined){
this.initerror = "Init-Error: config-Object have not all required vars";
}else{
this.auth_id = "";
this.api_key = configobject.api_key;
this.email = configobject.email;
this.passwd = configobject.passwd;
this.api_host = "api.imageshack.com";
this.api_url = "http://" + this.api_host + "/v2/";
}
}
}
/*
* Delete a File
* @param id ImageShack-ID of the image
* @param callback Callbackfunction (err) err = null if sucess
*/
Imguploader.prototype.del = function(id, callback){
var self = this;
// Check if auth_id is set
if(this.auth_id == ""){
// At the moment a auth is doing, wait 1 secound
if(this.doingauth){
setTimeout(function () {
self.del(id,callback);
}, 100);
}else{
this.auth(function(err){
if(err){
callback(err);
}else{
self.del(id,callback);
}
});
}
// Do delete
}else{
var text = "";
var form = new FormData();
form.submit({
host: "api.imageshack.com",
path: "/v2/images/" + id+"?auth_token=" +this.auth_id,
method: "DELETE"
}, function(err, res) {
if (err) {
callback("Error delete: "+ err);
}else{
res.on('data', function (chunk) {
text += chunk;
});
res.on("end", function(){
try {
var body = JSON.parse(text);
}catch (e){
callback("Error delete: " +text);
}
// json success = true if delete is done right
if(body.success != undefined){
if(body.success){
callback(null);
}else{
callback("Error delete: " +text);
}
}
});
}
});
}
};
/*
* Upload a new File
* @param streamobj Node readable Object
* @param callback Callbackfunction (err, link)
*/
Imguploader.prototype.upload = function(streamobj, callback){
var self = this;
// If there is a Error on the init
if(this.initerror != ""){
callback(this.initerror);
}else{
streamobj.pause();
if (typeof streamobj.read != 'function' || typeof streamobj.on != 'function'){
callback("Upload-Paramter is not a readable Stream");
}else{
// Check if auth_id is set
if(this.auth_id == ""){
// At the moment a auth is doing, wait 1 secound
if(this.doingauth){
setTimeout(function () {
self.upload(streamobj,callback);
}, 100);
}else{
this.auth(function(err){
if(err){
callback(err);
}else{
self.upload(streamobj,callback);
}
});
}
// Do upload
}else{
var text = "";
var form = new FormData();
form.append('api_key', this.api_key);
form.append("auth_token",this.auth_id);
form.append("public","false");
form.append("files",streamobj);
form.submit( this.api_url +"images", function(err, res) {
if (err) {
callback("Error upload:" +err);
}else{
res.on('data', function (chunk) {
text += chunk;
});
res.on("end", function(){
try {
var body = JSON.parse(text);
}catch (e){
callback("Error upload: " +text);
}
if(body != undefined){
try {
var link = body.result.images[0].direct_link.replace("imageshack.us/","http://imagizer.imageshack.us/");
} catch (e) {
// If auth_token missing
if(body.error.error_message != undefined){
self.auth_id = "";
self.upload(streamobj, callback);
}else{
callback("Error upload: " +text);
}
}
if(link != undefined){
var returnobj = {
original_filename: body.result.images[0].original_filename,
link: link,
id: body.result.images[0].id
};
callback(null, returnobj);
}
}
});
}
});
}
}
}
};
/*
* Make the authorization
* @param callback Callbackfunction(err) on finish (err = null if there is no error)
*/
Imguploader.prototype.auth = function(callback){
var self = this;
this.doingauth = true;
var form = new FormData();
form.append('email', this.email);
form.append('password', this.passwd);
form.append('api_key', this.api_key);
var tempstr = "";
form.submit(this.api_url + "user/login",
function (err, res) {
if (err) {
self.doingauth = false;
callback("Error auth: "+ err);
}else{
res.on('data', function (chunk) {
tempstr += chunk;
});
res.on("end", function(){
try {
var result = JSON.parse(tempstr);
}catch (e){
self.doingauth = false;
callback("Error getting auth_id: " +tempstr);
}
if(result != undefined){
if(result.result.auth_token != undefined){
self.auth_id = result.result.auth_token;
self.doingauth = false;
callback(null);
}else{
self.doingauth = false;
callback("Error getting auth_id: " +tempstr);
}
}
});
}
});
};
return Imguploader;
})();
module.exports = function(config){
return new Imageshack(config);
};