mirror of
https://github.com/node-red/node-red-nodes.git
synced 2023-10-10 13:36:58 +02:00
311 lines
13 KiB
JavaScript
311 lines
13 KiB
JavaScript
|
|
|
|
module.exports = function(RED) {
|
|
"use strict";
|
|
var mongo = require('mongodb');
|
|
var ObjectID = require('mongodb').ObjectID;
|
|
var MongoClient = mongo.MongoClient;
|
|
|
|
function MongoNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
this.hostname = n.hostname;
|
|
this.port = n.port;
|
|
this.db = n.db;
|
|
this.name = n.name;
|
|
this.connectOptions= n.connectOptions;
|
|
this.topology = n.topology;
|
|
|
|
//console.log(this);
|
|
|
|
var clustered = (this.topology !== "direct") || false;
|
|
|
|
var url = "mongodb://";
|
|
if (this.topology === "dnscluster") {
|
|
url = "mongodb+srv://";
|
|
}
|
|
if (this.credentials && this.credentials.user && this.credentials.password) {
|
|
this.user = this.credentials.user;
|
|
this.password = this.credentials.password;
|
|
} else {
|
|
this.user = n.user;
|
|
this.password = n.password;
|
|
}
|
|
if (this.user) {
|
|
url += this.user+":"+this.password+"@";
|
|
}
|
|
if (clustered) {
|
|
url += this.hostname + "/" + this.db
|
|
} else {
|
|
url += this.hostname + ":" + this.port + "/" + this.db;
|
|
}
|
|
if (this.connectOptions){
|
|
url += "?" + this.connectOptions;
|
|
}
|
|
|
|
console.log("MongoDB URL: " + url);
|
|
this.url = url;
|
|
}
|
|
|
|
RED.nodes.registerType("mongodb",MongoNode,{
|
|
credentials: {
|
|
user: {type:"text"},
|
|
password: {type: "password"}
|
|
}
|
|
});
|
|
|
|
function ensureValidSelectorObject(selector) {
|
|
if (selector != null && (typeof selector != 'object' || Buffer.isBuffer(selector))) {
|
|
return {};
|
|
}
|
|
return selector;
|
|
}
|
|
|
|
function MongoOutNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
this.collection = n.collection;
|
|
this.mongodb = n.mongodb;
|
|
this.payonly = n.payonly || false;
|
|
this.upsert = n.upsert || false;
|
|
this.multi = n.multi || false;
|
|
this.operation = n.operation;
|
|
this.mongoConfig = RED.nodes.getNode(this.mongodb);
|
|
this.status({fill:"grey",shape:"ring",text:RED._("mongodb.status.connecting")});
|
|
var node = this;
|
|
var noerror = true;
|
|
|
|
var connectToDB = function() {
|
|
MongoClient.connect(node.mongoConfig.url, function(err, client) {
|
|
if (err) {
|
|
node.status({fill:"red",shape:"ring",text:RED._("mongodb.status.error")});
|
|
if (noerror) { node.error(err); }
|
|
noerror = false;
|
|
node.tout = setTimeout(connectToDB, 10000);
|
|
}
|
|
else {
|
|
node.status({fill:"green",shape:"dot",text:RED._("mongodb.status.connected")});
|
|
node.clientDb = client.db();
|
|
var db = client.db();
|
|
//console.log( db);
|
|
noerror = true;
|
|
var coll;
|
|
|
|
if (node.collection) {
|
|
coll = db.collection(node.collection);
|
|
}
|
|
node.on("input",function(msg) {
|
|
if (!node.collection) {
|
|
if (msg.collection) {
|
|
coll = db.collection(msg.collection);
|
|
}
|
|
else {
|
|
node.error(RED._("mongodb.errors.nocollection"),msg);
|
|
return;
|
|
}
|
|
}
|
|
delete msg._topic;
|
|
delete msg.collection;
|
|
if (node.operation === "store") {
|
|
if (node.payonly) {
|
|
if (typeof msg.payload !== "object") {
|
|
msg.payload = {"payload": msg.payload};
|
|
}
|
|
if (msg.hasOwnProperty("_id") && !msg.payload.hasOwnProperty("_id")) {
|
|
msg.payload._id = msg._id;
|
|
}
|
|
coll.save(msg.payload,function(err, item) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
coll.save(msg,function(err, item) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
else if (node.operation === "insert") {
|
|
if (node.payonly) {
|
|
if (typeof msg.payload !== "object") {
|
|
msg.payload = {"payload": msg.payload};
|
|
}
|
|
if (msg.hasOwnProperty("_id") && !msg.payload.hasOwnProperty("_id")) {
|
|
msg.payload._id = msg._id;
|
|
}
|
|
coll.insert(msg.payload, function(err, item) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
coll.insert(msg, function(err,item) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
else if (node.operation === "update") {
|
|
if (typeof msg.payload !== "object") {
|
|
msg.payload = {"payload": msg.payload};
|
|
}
|
|
var query = msg.query || {};
|
|
var payload = msg.payload || {};
|
|
var options = {
|
|
upsert: node.upsert,
|
|
multi: node.multi
|
|
};
|
|
if (ObjectID.isValid(msg.query._id)) {
|
|
msg.query._id = new ObjectID(msg.query._id);
|
|
}
|
|
coll.update(query, payload, options, function(err, item) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
else if (node.operation === "delete") {
|
|
coll.remove(msg.payload, function(err, items) {
|
|
if (err) {
|
|
node.error(err,msg);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
if (node.mongoConfig) { connectToDB(); }
|
|
else { node.error(RED._("mongodb.errors.missingconfig")); }
|
|
|
|
node.on("close", function() {
|
|
node.status({});
|
|
if (node.tout) { clearTimeout(node.tout); }
|
|
if (node.clientDb) { node.clientDb.close(); }
|
|
});
|
|
}
|
|
RED.nodes.registerType("mongodb out",MongoOutNode);
|
|
|
|
|
|
function MongoInNode(n) {
|
|
RED.nodes.createNode(this,n);
|
|
this.collection = n.collection;
|
|
this.mongodb = n.mongodb;
|
|
this.operation = n.operation || "find";
|
|
this.mongoConfig = RED.nodes.getNode(this.mongodb);
|
|
this.status({fill:"grey",shape:"ring",text:RED._("mongodb.status.connecting")});
|
|
var node = this;
|
|
var noerror = true;
|
|
|
|
var connectToDB = function() {
|
|
console.log("connecting: " + node.mongoConfig.url);
|
|
MongoClient.connect(node.mongoConfig.url, function(err,client) {
|
|
if (err) {
|
|
node.status({fill:"red",shape:"ring",text:RED._("mongodb.status.error")});
|
|
if (noerror) { node.error(err); }
|
|
noerror = false;
|
|
node.tout = setTimeout(connectToDB, 10000);
|
|
}
|
|
else {
|
|
node.status({fill:"green",shape:"dot",text:RED._("mongodb.status.connected")});
|
|
node.clientDb = client.db();
|
|
var db = client.db();
|
|
noerror = true;
|
|
var coll;
|
|
node.on("input", function(msg) {
|
|
if (!node.collection) {
|
|
if (msg.collection) {
|
|
coll = db.collection(msg.collection);
|
|
}
|
|
else {
|
|
node.error(RED._("mongodb.errors.nocollection"));
|
|
return;
|
|
}
|
|
}
|
|
else {
|
|
coll = db.collection(node.collection);
|
|
}
|
|
var selector;
|
|
if (node.operation === "find") {
|
|
msg.projection = msg.projection || {};
|
|
selector = ensureValidSelectorObject(msg.payload);
|
|
var limit = msg.limit;
|
|
if (typeof limit === "string" && !isNaN(limit)) {
|
|
limit = Number(limit);
|
|
} else if (typeof limit === "undefined") {
|
|
limit = 0;
|
|
}
|
|
var skip = msg.skip;
|
|
if (typeof skip === "string" && !isNaN(skip)) {
|
|
skip = Number(skip);
|
|
} else if (typeof skip === "undefined") {
|
|
skip = 0;
|
|
}
|
|
|
|
coll.find(selector).project(msg.projection).sort(msg.sort).limit(limit).skip(skip).toArray(function(err, items) {
|
|
if (err) {
|
|
node.error(err);
|
|
}
|
|
else {
|
|
msg.payload = items;
|
|
delete msg.projection;
|
|
delete msg.sort;
|
|
delete msg.limit;
|
|
delete msg.skip;
|
|
node.send(msg);
|
|
}
|
|
});
|
|
}
|
|
else if (node.operation === "count") {
|
|
selector = ensureValidSelectorObject(msg.payload);
|
|
coll.count(selector, function(err, count) {
|
|
if (err) {
|
|
node.error(err);
|
|
}
|
|
else {
|
|
msg.payload = count;
|
|
node.send(msg);
|
|
}
|
|
});
|
|
}
|
|
else if (node.operation === "aggregate") {
|
|
msg.payload = (Array.isArray(msg.payload)) ? msg.payload : [];
|
|
coll.aggregate(msg.payload, function(err, cursor) {
|
|
if (err) {
|
|
node.error(err);
|
|
}
|
|
else {
|
|
cursor.toArray(function(cursorError, cursorDocs) {
|
|
//console.log(cursorDocs);
|
|
if (cursorError) {
|
|
node.error(cursorError);
|
|
}
|
|
else {
|
|
msg.payload = cursorDocs;
|
|
node.send(msg);
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
if (node.mongoConfig) { connectToDB(); }
|
|
else { node.error(RED._("mongodb.errors.missingconfig")); }
|
|
|
|
node.on("close", function() {
|
|
node.status({});
|
|
if (node.tout) { clearTimeout(node.tout); }
|
|
if (node.clientDb) { node.clientDb.close(); }
|
|
});
|
|
}
|
|
RED.nodes.registerType("mongodb in",MongoInNode);
|
|
}
|