goldilocks.js/packages/apis/com.daplie.caddy/index.js

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'use strict';
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module.exports.dependencies = [ 'OAUTH3', 'storage.owners', 'options.device' ];
module.exports.create = function (deps, conf) {
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var scmp = require('scmp');
var crypto = require('crypto');
var jwt = require('jsonwebtoken');
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var bodyParser = require('body-parser');
var jsonParser = bodyParser.json({
inflate: true, limit: '100kb', reviver: null, strict: true /* type, verify */
});
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var api = deps.api;
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/*
var owners;
deps.storage.owners.on('set', function (_owners) {
owners = _owners;
});
*/
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function isAuthorized(req, res, fn) {
var auth = jwt.decode((req.headers.authorization||'').replace(/^bearer\s+/i, ''));
if (!auth) {
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res.setHeader('Content-Type', 'application/json;');
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res.end(JSON.stringify({ error: { message: "no token", code: 'E_NO_TOKEN', uri: undefined } }));
return;
}
var id = crypto.createHash('sha256').update(auth.sub).digest('hex');
return deps.storage.owners.exists(id).then(function (exists) {
if (!exists) {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify({ error: { message: "not authorized", code: 'E_NO_AUTHZ', uri: undefined } }));
return;
}
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req.userId = id;
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fn();
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});
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}
return {
init: function (req, res) {
jsonParser(req, res, function () {
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return deps.PromiseA.resolve().then(function () {
console.log('req.body', req.body);
var auth = jwt.decode((req.headers.authorization||'').replace(/^bearer\s+/i, ''));
var token = jwt.decode(req.body.access_token);
var refresh = jwt.decode(req.body.refresh_token);
auth.sub = auth.sub || auth.acx.id;
token.sub = token.sub || token.acx.id;
refresh.sub = refresh.sub || refresh.acx.id;
// TODO validate token with issuer, but as-is the sub is already a secret
var id = crypto.createHash('sha256').update(auth.sub).digest('hex');
var tid = crypto.createHash('sha256').update(token.sub).digest('hex');
var rid = crypto.createHash('sha256').update(refresh.sub).digest('hex');
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var session = {
access_token: req.body.access_token
, token: token
, refresh_token: req.body.refresh_token
, refresh: refresh
};
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console.log('ids', id, tid, rid);
if (req.body.ip_url) {
// TODO set options / GunDB
conf.ip_url = req.body.ip_url;
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}
return deps.storage.owners.all().then(function (results) {
console.log('results', results);
var err;
// There is no owner yet. First come, first serve.
if (!results || !results.length) {
if (tid !== id || rid !== id) {
err = new Error(
"When creating an owner the Authorization Bearer and Token and Refresh must all match"
);
return deps.PromiseA.reject(err);
}
console.log('no owner, creating');
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return deps.storage.owners.set(id, session);
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}
console.log('has results');
// There are onwers. Is this one of them?
if (!results.some(function (token) {
return scmp(id, token.id);
})) {
err = new Error("Authorization token does not belong to an existing owner.");
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return deps.PromiseA.reject(err);
}
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console.log('has correct owner');
// We're adding an owner, unless it already exists
if (!results.some(function (token) {
return scmp(tid, token.id);
})) {
console.log('adds new owner with existing owner');
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return deps.storage.owners.set(id, session);
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}
}).then(function () {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify({ success: true }));
});
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}, function (err) {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify({ error: { message: err.message, code: err.code, uri: err.uri } }));
});
});
}
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, tunnel: function (req, res) {
isAuthorized(req, res, function () {
jsonParser(req, res, function () {
console.log('req.body', req.body);
return deps.storage.owners.get(req.userId).then(function (session) {
session.token.id = req.userId;
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return api.tunnel(deps, session).then(function () {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify({ success: true }));
}, function (err) {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify({ error: { message: err.message, code: err.code, uri: err.uri } }));
});
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});
});
});
}
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, config: function (req, res) {
isAuthorized(req, res, function () {
if ('POST' !== req.method) {
res.setHeader('Content-Type', 'application/json;');
res.end(JSON.stringify(deps.recase.snakeCopy(conf.snake_copy)));
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return;
}
jsonParser(req, res, function () {
console.log('req.body', req.body);
deps.storage.config.merge(req.body);
deps.storage.config.save();
});
});
}
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, request: function (req, res) {
jsonParser(req, res, function () {
isAuthorized(req, res, function () {
deps.request({
method: req.body.method || 'GET'
, url: req.body.url
, headers: req.body.headers
, body: req.body.data
}).then(function (resp) {
if (resp.body instanceof Buffer || 'string' === typeof resp.body) {
resp.body = JSON.parse(resp.body);
}
return {
statusCode: resp.statusCode
, status: resp.status
, headers: resp.headers
, body: resp.body
, data: resp.data
};
}).then(function (result) {
res.send(result);
});
});
});
}
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, _api: api
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};
};