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middle.js
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middle.js
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var lib = require('./lib')
, cradle = require('cradle')
, config = require('../config')
, EventEmitter = require('events').EventEmitter
, dash = process.dash || new EventEmitter()
, log = process.log || (new require('bunyan'))({name: "nodester"})
;
/**
* Dynamic express route to authenticate a user from CouchDB
*/
var authenticate = function(req, res, next) {
var basicauth = req.headers.authorization;
if (typeof basicauth != 'undefined' && basicauth.length > 0) {
var buff = new Buffer(basicauth.substring(basicauth.indexOf(" ") + 1), encoding = 'base64');
var creds = buff.toString('ascii');
var username = creds.substring(0, creds.indexOf(":"));
var password = creds.substring(creds.indexOf(":") + 1);
var db = lib.get_couchdb_database('nodefu');
db.get(username, function(err, doc) {
if (err) {
log.error(err);
res.json({
status : "failure",
message : "Invalid username or password. CouchDB lookup failed."
},401);
return;
} else {
if (doc._id == username && doc.password == lib.md5(password)) {
req.user = doc;
next();
} else {
res.json({
status : "failure",
message: "Invalid username or password."
}, 401)
return;
}
}
});
} else {
res.json({"status" : "No authentication data sent."},401);
return;
}
};
var authenticate_admin = function(req, res, next) {
var basicauth = req.headers.authorization;
if (typeof basicauth != 'undefined' && basicauth.length > 0) {
var buff = new Buffer(basicauth.substring(basicauth.indexOf(" ") + 1), encoding = 'base64')
, creds = buff.toString('ascii')
, username = creds.substring(0, creds.indexOf(":"))
, password = creds.substring(creds.indexOf(":") + 1)
, db = lib.get_couchdb_database('admins')
;
db.view('all/name',{key:username,limit:1}, function(err, doc) {
if (err) {
log.error(err);
res.json({
status : "failure",
message: "Invalid username or password. CouchDB lookup failed."
},401);
return;
} else {
if (doc[0].value.username == username && doc[0].value.password == lib.md5(password)) {
req.user = doc;
next();
} else {
res.json({
status : "failure",
message : "Invalid username or password."
},401);
return;
}
}
});
} else {
res.json({
status : "No authentication data sent."
},401);
return;
}
};
/**
* Use CouchDB to get repo information, this route must come AFTER middle.authenticate
*/
var authenticate_app = function(req, res, next) {
//GET Request
var appname = req.param("appname");
// var appname = req.params.appname;
//POST|DELETE|PUT requests
if (!appname && req.query && req.query.appname) {
appname = req.query.appname;
}
if (!appname && req.body && req.body.appname) {
appname = req.body.appname;
}
if (appname) {
appname = appname.toLowerCase();
}
if (!appname || appname === '') {
res.json({
status : "Must pass an application name (appname)."
},400);
return;
}
if (req.user) {
var db = lib.get_couchdb_database('apps');
db.get(appname, function(err, doc) {
if (err) {
res.json({
status : "failure - app not found (" + appname + ")"
},400);
return;
} else {
if (doc.username == req.user._id) {
req.appname = appname;
req.repo = req.app = doc;
next();
} else {
res.json({
status : "failure - authentication for " + appname + " failed."
},401);
return;
}
}
});
} else {
res.json({
status : "failure - authentication."
},401);
return;
}
};
var deprecated = function(req, res, next) {
res.header('X-Deprecated');
next();
};
module.exports.authenticate = authenticate;
module.exports.authenticate_admin = authenticate_admin;
module.exports.authenticate_app = authenticate_app;
module.exports.deprecated = deprecated;
/*
* Generic request error handler.
*/
module.exports.error = function() {
return function(req, res, next) {
res.error = function(code, message) {
res.json({
status: message
},code);
}
next();
};
};