├── .gitignore
├── .travis.yml
├── Dockerfile
├── LICENSE
├── README.md
├── app.js
├── app.json
├── app.json.example
├── bin
    ├── build.sh
    ├── eth.sh
    └── update.sh
├── lib
    ├── node.js
    └── utils
    │   └── logger.js
├── package.json
└── processes-ec2.json


/.gitignore:
--------------------------------------------------------------------------------
 1 | .DS_Store
 2 | app.json
 3 | */**/.DS_Store
 4 | node_modules
 5 | npm-debug.log
 6 | config.js
 7 | *~
 8 | *.swp
 9 | *.pem
10 | .node-xmlhttprequest-*
11 | 


--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
 1 | language: node_js
 2 | node_js:
 3 |   - "0.12"
 4 | env:
 5 |   global:
 6 |     - secure: Qdkmi13nqcXskABBhbuGZmRakh4orOW1dalkSCyUbzGuYf0OdYF8ttNVuJa0WSWI4KhNXhtz2p3I8dM95wL++LCVqXFmIvZtX8Nca36KlNxIPNXPjn0odayh+c4pgrhrbz8TDmDXl9IPuZmNz8HHtN7xmIn6YDcm13wA3gTmfwo=
 7 |     - RPC_HOST=localhost
 8 |     - RPC_PORT=8545
 9 |     - LISTENING_PORT=30303
10 |     - INSTANCE_NAME="Travis Node"
11 |     - CONTACT_DETAILS="marian@ethdev.com"
12 |     - WS_SERVER="wss://rpc.ethstats.net"
13 |     - NODE_ENV="production"
14 | 


--------------------------------------------------------------------------------
/Dockerfile:
--------------------------------------------------------------------------------
 1 | ## Dockerfile for eth-net-intelligence-api (build from git).
 2 | ##
 3 | ## Build via:
 4 | #
 5 | # `docker build -t ethnetintel:latest .`
 6 | #
 7 | ## Run via:
 8 | #
 9 | # `docker run -v <path to app.json>:/home/ethnetintel/eth-net-intelligence-api/app.json ethnetintel:latest`
10 | #
11 | ## Make sure, to mount your configured 'app.json' into the container at
12 | ## '/home/ethnetintel/eth-net-intelligence-api/app.json', e.g.
13 | ## '-v /path/to/app.json:/home/ethnetintel/eth-net-intelligence-api/app.json'
14 | ## 
15 | ## Note: if you actually want to monitor a client, you'll need to make sure it can be reached from this container.
16 | ##       The best way in my opinion is to start this container with all client '-p' port settings and then 
17 | #        share its network with the client. This way you can redeploy the client at will and just leave 'ethnetintel' running. E.g. with
18 | ##       the python client 'pyethapp':
19 | ##
20 | #
21 | # `docker run -d --name ethnetintel \
22 | # -v /home/user/app.json:/home/ethnetintel/eth-net-intelligence-api/app.json \
23 | # -p 0.0.0.0:30303:30303 \
24 | # -p 0.0.0.0:30303:30303/udp \
25 | # ethnetintel:latest`
26 | #
27 | # `docker run -d --name pyethapp \
28 | # --net=container:ethnetintel \
29 | # -v /path/to/data:/data \
30 | # pyethapp:latest`
31 | #
32 | ## If you now want to deploy a new client version, just redo the second step.
33 | 
34 | 
35 | FROM debian
36 | 
37 | RUN apt-get update &&\
38 |     apt-get install -y curl git-core &&\
39 |     curl -sL https://deb.nodesource.com/setup | bash - &&\
40 |     apt-get update &&\
41 |     apt-get install -y nodejs
42 | 
43 | RUN apt-get update &&\
44 |     apt-get install -y build-essential
45 | 
46 | RUN adduser ethnetintel
47 | 
48 | RUN cd /home/ethnetintel &&\
49 |     git clone https://github.com/cubedro/eth-net-intelligence-api &&\
50 |     cd eth-net-intelligence-api &&\
51 |     npm install &&\
52 |     npm install -g pm2
53 | 
54 | RUN echo '#!/bin/bash\nset -e\n\ncd /home/ethnetintel/eth-net-intelligence-api\n/usr/bin/pm2 start ./app.json\ntail -f \
55 |     /home/ethnetintel/.pm2/logs/node-app-out-0.log' > /home/ethnetintel/startscript.sh
56 | 
57 | RUN chmod +x /home/ethnetintel/startscript.sh &&\
58 |     chown -R ethnetintel. /home/ethnetintel
59 | 
60 | USER ethnetintel
61 | ENTRYPOINT ["/home/ethnetintel/startscript.sh"]
62 | 


--------------------------------------------------------------------------------
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670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
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674 | <http://www.gnu.org/philosophy/why-not-lgpl.html>.
675 | 
676 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | Ethereum Network Intelligence API "Classic"
 2 | ============
 3 | [![Build Status][travis-image]][travis-url] [![dependency status][dep-image]][dep-url]
 4 | 
 5 | This is the backend service which runs along with ethereum and tracks the network status, fetches information through JSON-RPC and connects through WebSockets to [eth-netstats](https://github.com/ethereum/eth-netstats) (Ethereum Network Stats "Classic") to feed information. 
 6 | 
 7 | For full install instructions please read the [wiki](https://github.com/ethereum/wiki/wiki/Network-Status).
 8 | 
 9 | ## Prerequisite
10 | * eth, geth or pyethapp
11 | * node
12 | * npm
13 | 
14 | 
15 | ## Installation on an Ubuntu EC2 Instance
16 | 
17 | Fetch and run the build shell. This will install everything you need: latest ethereum - CLI from develop branch (you can choose between eth or geth), node.js, npm & pm2.
18 | 
19 | ```bash
20 | bash <(curl https://raw.githubusercontent.com/ethereum/eth-net-intelligence-api/master/bin/build.sh)
21 | ```
22 | ## Installation as docker container (optional)
23 | 
24 | There is a `Dockerfile` in the root directory of the repository. Please read through the header of said file for
25 | instructions on how to build/run/setup. Configuration instructions below still apply.
26 | 
27 | ## Configuration
28 | 
29 | Configure the app modifying [app.json](/eth-net-intelligence-api/blob/master/app.json) 
30 | 
31 | ```json
32 | "env":
33 | 	{
34 | 		"NODE_ENV"        : "production", // tell the client we're in production environment
35 | 		"RPC_HOST"        : "localhost", // eth JSON-RPC host
36 | 		"RPC_PORT"        : "8545", // eth JSON-RPC port
37 | 		"LISTENING_PORT"  : "30303", // eth listening port (only used for display)
38 | 		"INSTANCE_NAME"   : "", // whatever you wish to name your node
39 | 		"CONTACT_DETAILS" : "", // add your contact details here if you wish (email/skype)
40 | 		"WS_SERVER"       : "wss://rpc.ethstats.net", // path to eth-netstats WebSockets api server
41 | 		"WS_SECRET"       : "see http://forum.ethereum.org/discussion/2112/how-to-add-yourself-to-the-stats-dashboard-its-not-automatic", // WebSockets api server secret used for login
42 | 		"VERBOSITY"       : 2 // Set the verbosity (0 = silent, 1 = error, warn, 2 = error, warn, info, success, 3 = all logs)
43 | 	}
44 | ```
45 | 
46 | ## Run
47 | 
48 | Run it using pm2:
49 | 
50 | ```bash
51 | pm2 start app.json
52 | ```
53 | 
54 | Then run app.js:
55 | ```bash
56 | node app.js
57 | ```
58 | 
59 | Use ctrl+c to stop the process.
60 | 
61 | ## Updating
62 | 
63 | To update the API client use the following command:
64 | 
65 | ```bash
66 | ~/bin/www/bin/update.sh
67 | ```
68 | 
69 | It will stop the current netstats client processes, automatically detect your ethereum implementation and version, update it to the latest develop build, update netstats client and reload the processes.
70 | 


--------------------------------------------------------------------------------
/app.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | var nodeModel = require('./lib/node');
 4 | 
 5 | var node = new nodeModel();
 6 | 
 7 | var gracefulShutdown = function() {
 8 | 	console.log('');
 9 |     console.error("xxx", "sys", "Received kill signal, shutting down gracefully.");
10 | 
11 |     node.stop();
12 |     console.info("xxx", "sys", "Closed node watcher");
13 | 
14 |     setTimeout(function(){
15 |         console.info("xxx", "sys", "Closed out remaining connections.");
16 |         process.exit(0);
17 |     }, 1000);
18 | }
19 | 
20 | // listen for TERM signal .e.g. kill
21 | process.on('SIGTERM', gracefulShutdown);
22 | 
23 | // listen for INT signal e.g. Ctrl-C
24 | process.on('SIGINT', gracefulShutdown);
25 | 
26 | // listen for shutdown signal from pm2
27 | process.on('message', function(msg) {
28 | 	if (msg == 'shutdown')
29 | 		gracefulShutdown();
30 | });
31 | 
32 | module.exports = node;
33 | 


--------------------------------------------------------------------------------
/app.json:
--------------------------------------------------------------------------------
 1 | [
 2 |   {
 3 |     "name"              : "node-app",
 4 |     "script"            : "app.js",
 5 |     "log_date_format"   : "YYYY-MM-DD HH:mm Z",
 6 |     "merge_logs"        : false,
 7 |     "watch"             : false,
 8 |     "max_restarts"      : 10,
 9 |     "exec_interpreter"  : "node",
10 |     "exec_mode"         : "fork_mode",
11 |     "env":
12 |     {
13 |       "NODE_ENV"        : "production",
14 |       "RPC_HOST"        : "localhost",
15 |       "RPC_PORT"        : "8545",
16 |       "LISTENING_PORT"  : "30303",
17 |       "INSTANCE_NAME"   : "",
18 |       "CONTACT_DETAILS" : "",
19 |       "WS_SERVER"       : "wss://rpc.ethstats.net",
20 |       "WS_SECRET"       : "see http://forum.ethereum.org/discussion/2112/how-to-add-yourself-to-the-stats-dashboard-its-not-automatic",
21 |       "VERBOSITY"       : 2
22 |     }
23 |   }
24 | ]
25 | 


--------------------------------------------------------------------------------
/app.json.example:
--------------------------------------------------------------------------------
 1 | [
 2 |   {
 3 |     "name"              : "node-app",
 4 |     "script"            : "app.js",
 5 |     "log_date_format"   : "YYYY-MM-DD HH:mm Z",
 6 |     "merge_logs"        : false,
 7 |     "watch"             : false,
 8 |     "max_restarts"      : 10,
 9 |     "exec_interpreter"  : "node",
10 |     "exec_mode"         : "fork_mode",
11 |     "env":
12 |     {
13 |       "NODE_ENV"        : "production",
14 |       "RPC_HOST"        : "localhost",
15 |       "RPC_PORT"        : "8545",
16 |       "LISTENING_PORT"  : "30303",
17 |       "INSTANCE_NAME"   : "",
18 |       "CONTACT_DETAILS" : "",
19 |       "WS_SERVER"       : "wss://rpc.ethstats.net",
20 |       "WS_SECRET"       : "see http://forum.ethereum.org/discussion/2112/how-to-add-yourself-to-the-stats-dashboard-its-not-automatic",
21 |       "VERBOSITY"       : 2
22 |     }
23 |   }
24 | ]
25 | 


--------------------------------------------------------------------------------
/bin/build.sh:
--------------------------------------------------------------------------------
 1 | #!/bin/bash
 2 | 
 3 | # setup colors
 4 | red=`tput setaf 1`
 5 | green=`tput setaf 2`
 6 | cyan=`tput setaf 6`
 7 | bold=`tput bold`
 8 | reset=`tput sgr0`
 9 | 
10 | heading()
11 | {
12 | 	echo
13 | 	echo "${cyan}==>${reset}${bold} $1${reset}"
14 | }
15 | 
16 | success()
17 | {
18 | 	echo
19 | 	echo "${green}==>${bold} $1${reset}"
20 | }
21 | 
22 | error()
23 | {
24 | 	echo
25 | 	echo "${red}==>${bold} Error: $1${reset}"
26 | }
27 | 
28 | heading "You're about to install ethereum."
29 | echo "Please choose one of the following:"
30 | echo "1. eth"
31 | echo "2. geth"
32 | while true; do
33 |     read -p "Choose the implementation: " imp
34 |     case $imp in
35 |         [1]* ) ethtype="eth"; break;;
36 |         [2]* ) ethtype="geth"; break;;
37 |         * ) echo "Please answer 1 or 2.";;
38 |     esac
39 | done
40 | 
41 | heading "Installing" $ethtype
42 | 
43 | cd ~
44 | 
45 | [ ! -d "bin" ] && mkdir bin
46 | [ ! -d "logs" ] && mkdir logs
47 | 
48 | # update packages
49 | sudo apt-get update -y
50 | sudo apt-get upgrade -y
51 | sudo apt-get install -y software-properties-common
52 | 
53 | # add ethereum repos
54 | sudo add-apt-repository -y ppa:ethereum/ethereum
55 | sudo add-apt-repository -y ppa:ethereum/ethereum-dev
56 | sudo apt-get update -y
57 | 
58 | # install ethereum & install dependencies
59 | sudo apt-get install -y build-essential git unzip wget nodejs npm ntp cloud-utils $ethtype
60 | 
61 | # add node symlink if it doesn't exist
62 | [[ ! -f /usr/bin/node ]] && sudo ln -s /usr/bin/nodejs /usr/bin/node
63 | 
64 | # set up time update cronjob
65 | sudo bash -c "cat > /etc/cron.hourly/ntpdate << EOF
66 | #!/bin/sh
67 | pm2 flush
68 | sudo service ntp stop
69 | sudo ntpdate -s ntp.ubuntu.com
70 | sudo service ntp start
71 | EOF"
72 | 
73 | sudo chmod 755 /etc/cron.hourly/ntpdate
74 | 
75 | # add node service
76 | cd ~/bin
77 | 
78 | [ ! -d "www" ] && git clone https://github.com/cubedro/eth-net-intelligence-api www
79 | cd www
80 | git pull
81 | 
82 | [[ ! -f ~/bin/processes.json ]] && cp -b ./processes-ec2.json ./../processes.json
83 | 
84 | sudo npm install
85 | sudo npm install pm2 -g
86 | 


--------------------------------------------------------------------------------
/bin/eth.sh:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env bash
 2 | 
 3 | trap "exit" INT
 4 | 
 5 | if [[ -f $(which ec2metadata 2>/dev/null) ]]
 6 | then
 7 | 	# If ec2 instance then get ips from ec2metadata
 8 | 	LOCALIP=$(ec2metadata --local-ipv4)
 9 | 	IP=$(ec2metadata --public-ipv4)
10 | else
11 | 	# Else get IPs from ifconfig and dig
12 | 	LOCALIP=$(ifconfig | grep 'inet ' | grep -v '127.0.0.1' | head -n1 | awk '{print $2}' | cut -d':' -f2)
13 | 	IP=$(dig +short myip.opendns.com @resolver1.opendns.com)
14 | fi
15 | 
16 | echo "Local IP: $LOCALIP"
17 | echo "Public IP: $IP"
18 | 
19 | if [[ -f $(which geth 2>/dev/null) ]]
20 | then
21 | 	echo "Starting geth"
22 | 	echo geth --rpc --bootnodes "enode://09fbeec0d047e9a37e63f60f8618aa9df0e49271f3fadb2c070dc09e2099b95827b63a8b837c6fd01d0802d457dd83e3bd48bd3e6509f8209ed90dabbc30e3d3@52.16.188.185:30303" --nat "extip:$IP"
23 | 	geth --rpc --bootnodes "enode://09fbeec0d047e9a37e63f60f8618aa9df0e49271f3fadb2c070dc09e2099b95827b63a8b837c6fd01d0802d457dd83e3bd48bd3e6509f8209ed90dabbc30e3d3@52.16.188.185:30303" --nat "extip:$IP"
24 | 
25 | elif [[ -f $(which eth 2>/dev/null) ]]
26 | then
27 | 	echo "Starting eth"
28 | 	echo eth --bootstrap --peers 50 --remote 52.16.188.185:30303 --mining off --json-rpc -v 3 --public-ip $IP --listen-ip $LOCALIP --master $1
29 | 	eth --bootstrap --peers 50 --remote 52.16.188.185:30303 --mining off --json-rpc -v 3 --public-ip $IP --listen-ip $LOCALIP --master $1
30 | 
31 | else
32 | 	echo "Ethereum was not found!"
33 | 	exit 1;
34 | fi


--------------------------------------------------------------------------------
/bin/update.sh:
--------------------------------------------------------------------------------
 1 | #!/bin/bash
 2 | 
 3 | # setup colors
 4 | red=`tput setaf 1`
 5 | green=`tput setaf 2`
 6 | cyan=`tput setaf 6`
 7 | bold=`tput bold`
 8 | reset=`tput sgr0`
 9 | 
10 | heading()
11 | {
12 | 	echo
13 | 	echo "${cyan}==>${reset}${bold} $1${reset}"
14 | }
15 | 
16 | success()
17 | {
18 | 	echo
19 | 	echo "${green}==>${bold} $1${reset}"
20 | }
21 | 
22 | error()
23 | {
24 | 	echo
25 | 	echo "${red}==>${bold} Error: $1${reset}"
26 | }
27 | 
28 | heading "Updating ethereum"
29 | 
30 | # figure out what we have to update
31 | if [[ -f /usr/bin/geth ]];
32 | then
33 | 	ethtype="geth"
34 | 	success "Found geth"
35 | else
36 | 	if [[ -f /usr/bin/eth ]];
37 | 	then
38 | 		ethtype="eth"
39 | 		success "Found eth"
40 | 	else
41 | 		error "Couldn't find ethereum"
42 | 		exit 0
43 | 	fi
44 | fi
45 | 
46 | heading "Stopping processes"
47 | pm2 stop all
48 | 
49 | heading "Flushing logs"
50 | pm2 flush
51 | rm -Rf ~/logs/*
52 | rm -rf ~/.local/share/Trash/*
53 | 
54 | heading "Stopping pm2"
55 | pm2 kill
56 | 
57 | heading "Killing remaining node processes"
58 | echo `ps auxww | grep node | awk '{print $2}'`
59 | kill -9 `ps auxww | grep node | awk '{print $2}'`
60 | 
61 | heading "Removing ethereum"
62 | sudo apt-get remove -y $ethtype
63 | 
64 | heading "Updating repos"
65 | sudo apt-get clean
66 | sudo add-apt-repository -y ppa:ethereum/ethereum
67 | sudo add-apt-repository -y ppa:ethereum/ethereum-dev
68 | sudo apt-get update -y
69 | sudo apt-get upgrade -y
70 | 
71 | heading "Installing ethereum"
72 | sudo apt-get install -y $ethtype
73 | 
74 | heading "Updating eth-netstats client"
75 | cd ~/bin/www
76 | git pull
77 | sudo npm update
78 | cd ..
79 | 
80 | success "Ethereum was updated successfully"
81 | 
82 | heading "Restarting processes"
83 | pm2 start processes.json
84 | 


--------------------------------------------------------------------------------
/lib/node.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | require('./utils/logger.js');
  4 | 
  5 | var os = require('os');
  6 | var Web3 = require('web3');
  7 | var web3;
  8 | var async = require('async');
  9 | var _ = require('lodash');
 10 | var debounce = require('debounce');
 11 | var pjson = require('./../package.json');
 12 | var chalk = require('chalk');
 13 | 
 14 | var Primus = require('primus'),
 15 | 	Emitter = require('primus-emit'),
 16 | 	Latency = require('primus-spark-latency'),
 17 | 	Socket, socket;
 18 | 
 19 | var ETH_VERSION,
 20 | 	NET_VERSION,
 21 | 	PROTOCOL_VERSION,
 22 | 	API_VERSION,
 23 | 	COINBASE;
 24 | 
 25 | var INSTANCE_NAME = process.env.INSTANCE_NAME;
 26 | var WS_SECRET = process.env.WS_SECRET || "eth-net-stats-has-a-secret";
 27 | 
 28 | var PENDING_WORKS = true;
 29 | var MAX_BLOCKS_HISTORY = 40;
 30 | var UPDATE_INTERVAL = 5000;
 31 | var PING_INTERVAL = 3000;
 32 | var MINERS_LIMIT = 5;
 33 | var MAX_HISTORY_UPDATE = 50;
 34 | var MAX_CONNECTION_ATTEMPTS = 50;
 35 | var CONNECTION_ATTEMPTS_TIMEOUT = 1000;
 36 | 
 37 | Socket = Primus.createSocket({
 38 | 	transformer: 'websockets',
 39 | 	pathname: '/api',
 40 | 	timeout: 120000,
 41 | 	strategy: 'disconnect,online,timeout',
 42 | 	reconnect: {
 43 | 		retries: 30
 44 | 	},
 45 | 	plugin: {emitter: Emitter, sparkLatency: Latency}
 46 | });
 47 | 
 48 | if(process.env.NODE_ENV === 'production' && INSTANCE_NAME === "")
 49 | {
 50 | 	console.error("No instance name specified!");
 51 | 	process.exit(1);
 52 | }
 53 | 
 54 | console.info('   ');
 55 | console.info('   ', 'NET STATS CLIENT');
 56 | console.success('   ', 'v' + pjson.version);
 57 | console.info('   ');
 58 | console.info('   ');
 59 | 
 60 | function Node ()
 61 | {
 62 | 	this.info = {
 63 | 		name: INSTANCE_NAME || (process.env.EC2_INSTANCE_ID || os.hostname()),
 64 | 		contact: (process.env.CONTACT_DETAILS || ""),
 65 | 		coinbase: null,
 66 | 		node: null,
 67 | 		net: null,
 68 | 		protocol: null,
 69 | 		api: null,
 70 | 		port: (process.env.LISTENING_PORT || 30303),
 71 | 		os: os.platform(),
 72 | 		os_v: os.release(),
 73 | 		client: pjson.version,
 74 | 		canUpdateHistory: true,
 75 | 	};
 76 | 
 77 | 	this.id = _.camelCase(this.info.name);
 78 | 
 79 | 	this.stats = {
 80 | 		active: false,
 81 | 		mining: false,
 82 | 		hashrate: 0,
 83 | 		peers: 0,
 84 | 		pending: 0,
 85 | 		gasPrice: 0,
 86 | 		block: {
 87 | 			number: 0,
 88 | 			hash: '?',
 89 | 			difficulty: 0,
 90 | 			totalDifficulty: 0,
 91 | 			transactions: [],
 92 | 			uncles: []
 93 | 		},
 94 | 		syncing: false,
 95 | 		uptime: 0
 96 | 	};
 97 | 
 98 | 	this._lastBlock = 0;
 99 | 	this._lastStats = JSON.stringify(this.stats);
100 | 	this._lastFetch = 0;
101 | 	this._lastPending = 0;
102 | 
103 | 	this._tries = 0;
104 | 	this._down = 0;
105 | 	this._lastSent = 0;
106 | 	this._latency = 0;
107 | 
108 | 	this._web3 = false;
109 | 	this._socket = false;
110 | 
111 | 	this._latestQueue = null;
112 | 	this.pendingFilter = false;
113 | 	this.chainFilter = false;
114 | 	this.updateInterval = false;
115 | 	this.pingInterval = false;
116 | 	this.connectionInterval = false;
117 | 
118 | 	this._lastBlockSentAt = 0;
119 | 	this._lastChainLog = 0;
120 | 	this._lastPendingLog = 0;
121 | 	this._chainDebouncer = 0;
122 | 	this._chan_min_time = 50;
123 | 	this._max_chain_debouncer = 20;
124 | 	this._chain_debouncer_cnt = 0;
125 | 	this._connection_attempts = 0;
126 | 	this._timeOffset = null;
127 | 
128 | 	this.startWeb3Connection();
129 | 
130 | 	return this;
131 | }
132 | 
133 | Node.prototype.startWeb3Connection = function()
134 | {
135 | 	console.info('Starting web3 connection');
136 | 
137 | 	web3 = new Web3();
138 | 	web3.setProvider(new web3.providers.HttpProvider('http://' + (process.env.RPC_HOST || 'localhost') + ':' + (process.env.RPC_PORT || '8545')));
139 | 
140 | 	this.checkWeb3Connection();
141 | }
142 | 
143 | Node.prototype.checkWeb3Connection = function()
144 | {
145 | 	var self = this;
146 | 
147 | 	if (!this._web3)
148 | 	{
149 | 		if(web3.isConnected()) {
150 | 			console.success('Web3 connection established');
151 | 
152 | 			this._web3 = true;
153 | 			this.init();
154 | 
155 | 			return true;
156 | 		}
157 | 		else
158 | 		{
159 | 			if(this._connection_attempts < MAX_CONNECTION_ATTEMPTS)
160 | 			{
161 | 				console.error('Web3 connection attempt', chalk.cyan('#' + this._connection_attempts++), 'failed');
162 | 				console.error('Trying again in', chalk.cyan(500 * this._connection_attempts + ' ms'));
163 | 
164 | 				setTimeout(function ()
165 | 				{
166 | 					self.checkWeb3Connection();
167 | 				}, CONNECTION_ATTEMPTS_TIMEOUT * this._connection_attempts);
168 | 			}
169 | 			else
170 | 			{
171 | 				console.error('Web3 connection failed', chalk.cyan(MAX_CONNECTION_ATTEMPTS), 'times. Aborting...');
172 | 			}
173 | 		}
174 | 	}
175 | }
176 | 
177 | Node.prototype.reconnectWeb3 = function()
178 | {
179 | 	console.warn("Uninstalling filters and update interval");
180 | 
181 | 	this._web3 = false;
182 | 	this._connection_attempts = 0;
183 | 
184 | 	if(this.updateInterval)
185 | 		clearInterval(this.updateInterval);
186 | 
187 | 	try
188 | 	{
189 | 		web3.reset(true);
190 | 	}
191 | 	catch (err)
192 | 	{
193 | 		console.error("Web3 reset error:", err);
194 | 	}
195 | 
196 | 	console.info("Web3 reconnect attempts started");
197 | 
198 | 	this.checkWeb3Connection();
199 | }
200 | 
201 | Node.prototype.startSocketConnection = function()
202 | {
203 | 	if( !this._socket )
204 | 	{
205 | 		console.info('wsc', 'Starting socket connection');
206 | 
207 | 		socket = new Socket( process.env.WS_SERVER || 'ws://localhost:3000' );
208 | 
209 | 		this.setupSockets();
210 | 	}
211 | }
212 | 
213 | Node.prototype.setupSockets = function()
214 | {
215 | 	var self = this;
216 | 
217 | 	// Setup events
218 | 	socket.on('open', function open()
219 | 	{
220 | 		console.info('wsc', 'The socket connection has been opened.');
221 | 		console.info('   ', 'Trying to login');
222 | 
223 | 		socket.emit('hello', {
224 | 			id: self.id,
225 | 			info: self.info,
226 | 			secret: WS_SECRET
227 | 		});
228 | 	})
229 | 	.on('ready', function()
230 | 	{
231 | 		self._socket = true;
232 | 		console.success('wsc', 'The socket connection has been established.');
233 | 
234 | 		self.getLatestBlock();
235 | 		self.getPending();
236 | 		self.getStats(true);
237 | 	})
238 | 	.on('data', function incoming(data)
239 | 	{
240 | 		console.stats('Socket received some data', data);
241 | 	})
242 | 	.on('history', function (data)
243 | 	{
244 | 		console.stats('his', 'Got history request');
245 | 
246 | 		self.getHistory( data );
247 | 	})
248 | 	.on('node-pong', function(data)
249 | 	{
250 | 		var now = _.now();
251 | 		var latency = Math.ceil( (now - data.clientTime) / 2 );
252 | 
253 | 		socket.emit('latency', {
254 | 			id: self.id,
255 | 			latency: latency
256 | 		});
257 | 	})
258 | 	.on('end', function end()
259 | 	{
260 | 		self._socket = false;
261 | 		console.error('wsc', 'Socket connection end received');
262 | 	})
263 | 	.on('error', function error(err)
264 | 	{
265 | 		console.error('wsc', 'Socket error:', err);
266 | 	})
267 | 	.on('timeout', function ()
268 | 	{
269 | 		self._socket = false;
270 | 		console.error('wsc', 'Socket connection timeout');
271 | 	})
272 | 	.on('close', function ()
273 | 	{
274 | 		self._socket = false;
275 | 		console.error('wsc', 'Socket connection has been closed');
276 | 	})
277 | 	.on('offline', function ()
278 | 	{
279 | 		self._socket = false;
280 | 		console.error('wsc', 'Network connection is offline');
281 | 	})
282 | 	.on('online', function ()
283 | 	{
284 | 		self._socket = true;
285 | 		console.info('wsc', 'Network connection is online');
286 | 	})
287 | 	.on('reconnect', function ()
288 | 	{
289 | 		console.info('wsc', 'Socket reconnect attempt started');
290 | 	})
291 | 	.on('reconnect scheduled', function (opts)
292 | 	{
293 | 		self._socket = false;
294 | 		console.warn('wsc', 'Reconnecting in', opts.scheduled, 'ms');
295 | 		console.warn('wsc', 'This is attempt', opts.attempt, 'out of', opts.retries);
296 | 	})
297 | 	.on('reconnected', function (opts)
298 | 	{
299 | 		self._socket = true;
300 | 		console.success('wsc', 'Socket reconnected successfully after', opts.duration, 'ms');
301 | 
302 | 		self.getLatestBlock();
303 | 		self.getPending();
304 | 		self.getStats(true);
305 | 	})
306 | 	.on('reconnect timeout', function (err, opts)
307 | 	{
308 | 		self._socket = false;
309 | 		console.error('wsc', 'Socket reconnect atempt took too long:', err.message);
310 | 	})
311 | 	.on('reconnect failed', function (err, opts)
312 | 	{
313 | 		self._socket = false;
314 | 		console.error('wsc', 'Socket reconnect failed:', err.message);
315 | 	});
316 | }
317 | 
318 | Node.prototype.emit = function(message, payload)
319 | {
320 | 	if(this._socket)
321 | 	{
322 | 		try {
323 | 			socket.emit(message, payload);
324 | 			console.sstats('wsc', 'Socket emited message:', chalk.reset.cyan(message));
325 | 			// console.success('wsc', payload);
326 | 		}
327 | 		catch (err) {
328 | 			console.error('wsc', 'Socket emit error:', err);
329 | 		}
330 | 	}
331 | }
332 | 
333 | Node.prototype.getInfo = function()
334 | {
335 | 	console.info('==>', 'Getting info');
336 | 	console.time('Got info');
337 | 
338 | 	try {
339 | 		this.info.coinbase = web3.eth.coinbase;
340 | 		this.info.node = web3.version.node;
341 | 		this.info.net = web3.version.network;
342 | 		this.info.protocol = web3.toDecimal(web3.version.ethereum);
343 | 		this.info.api = web3.version.api;
344 | 
345 | 		console.timeEnd('Got info');
346 | 		console.info(this.info);
347 | 
348 | 		return true;
349 | 	}
350 | 	catch (err) {
351 | 		console.error("Couldn't get version");
352 | 	}
353 | 
354 | 	return false;
355 | }
356 | 
357 | Node.prototype.setInactive = function()
358 | {
359 | 	this.stats.active = false;
360 | 	this.stats.peers = 0;
361 | 	this.stats.mining = false;
362 | 	this.stats.hashrate = 0;
363 | 	this._down++;
364 | 
365 | 	this.setUptime();
366 | 
367 | 	this.sendStatsUpdate(true);
368 | 
369 | 	// Schedule web3 reconnect
370 | 	this.reconnectWeb3();
371 | 
372 | 	return this;
373 | }
374 | 
375 | Node.prototype.setUptime = function()
376 | {
377 | 	this.stats.uptime = ((this._tries - this._down) / this._tries) * 100;
378 | }
379 | 
380 | Node.prototype.formatBlock = function (block)
381 | {
382 | 	if( !_.isNull(block) && !_.isUndefined(block) && !_.isUndefined(block.number) && block.number >= 0 && !_.isUndefined(block.difficulty) && !_.isUndefined(block.totalDifficulty) )
383 | 	{
384 | 		block.difficulty = block.difficulty.toString(10);
385 | 		block.totalDifficulty = block.totalDifficulty.toString(10);
386 | 
387 | 		if( !_.isUndefined(block.logsBloom) )
388 | 		{
389 | 			delete block.logsBloom;
390 | 		}
391 | 
392 | 		return block;
393 | 	}
394 | 
395 | 	return false;
396 | }
397 | 
398 | Node.prototype.getLatestBlock = function ()
399 | {
400 | 	var self = this;
401 | 
402 | 	if(this._web3)
403 | 	{
404 | 		var timeString = 'Got block in' + chalk.reset.red('');
405 | 		console.time('==>', timeString);
406 | 
407 | 		web3.eth.getBlock('latest', false, function(error, result) {
408 | 			self.validateLatestBlock(error, result, timeString);
409 | 		});
410 | 	}
411 | }
412 | 
413 | Node.prototype.validateLatestBlock = function (error, result, timeString)
414 | {
415 | 	console.timeEnd('==>', timeString);
416 | 
417 | 	if( error )
418 | 	{
419 | 		console.error("xx>", "getLatestBlock couldn't fetch block...");
420 | 		console.error("xx>", error);
421 | 
422 | 		return false;
423 | 	}
424 | 
425 | 	var block = this.formatBlock(result);
426 | 
427 | 	if(block === false)
428 | 	{
429 | 		console.error("xx>", "Got bad block:", chalk.reset.cyan(result));
430 | 
431 | 		return false;
432 | 	}
433 | 
434 | 	if( this.stats.block.number === block.number )
435 | 	{
436 | 		console.warn("==>", "Got same block:", chalk.reset.cyan(block.number));
437 | 
438 | 		if( _.isEqual(JSON.stringify(this.stats.block), JSON.stringify(block)) )
439 | 			return false;
440 | 
441 | 		console.stats(this.stats.block);
442 | 		console.stats(block);
443 | 		console.warn("Blocks are different... updating block");
444 | 	}
445 | 
446 | 	console.sstats("==>", "Got block:", chalk.reset.red(block.number));
447 | 
448 | 	this.stats.block = block;
449 | 	this.sendBlockUpdate();
450 | 
451 | 	if(this.stats.block.number - this._lastBlock > 1)
452 | 	{
453 | 		var range = _.range( Math.max(this.stats.block.number - MAX_BLOCKS_HISTORY, this._lastBlock + 1), Math.max(this.stats.block.number, 0), 1 );
454 | 
455 | 		if( this._latestQueue.idle() )
456 | 			this.getHistory({ list: range });
457 | 	}
458 | 
459 | 	if(this.stats.block.number > this._lastBlock)
460 | 	{
461 | 		this._lastBlock = this.stats.block.number;
462 | 	}
463 | }
464 | 
465 | Node.prototype.getStats = function(forced)
466 | {
467 | 	var self = this;
468 | 	var now = _.now();
469 | 	var lastFetchAgo = now - this._lastFetch;
470 | 	this._lastFetch = now;
471 | 
472 | 	if (this._socket)
473 | 		this._lastStats = JSON.stringify(this.stats);
474 | 
475 | 	if (this._web3 && (lastFetchAgo >= UPDATE_INTERVAL || forced === true))
476 | 	{
477 | 		console.stats('==>', 'Getting stats')
478 | 		console.stats('   ', 'last update:', chalk.reset.cyan(lastFetchAgo));
479 | 		console.stats('   ', 'forced:', chalk.reset.cyan(forced === true));
480 | 
481 | 		async.parallel({
482 | 			peers: function (callback)
483 | 			{
484 | 				web3.net.getPeerCount(callback);
485 | 			},
486 | 			mining: function (callback)
487 | 			{
488 | 				web3.eth.getMining(callback);
489 | 			},
490 | 			hashrate: function (callback)
491 | 			{
492 | 				web3.eth.getHashrate(callback);
493 | 			},
494 | 			gasPrice: function (callback)
495 | 			{
496 | 				web3.eth.getGasPrice(callback);
497 | 			},
498 | 			syncing: function (callback)
499 | 			{
500 | 				web3.eth.getSyncing(callback);
501 | 			}
502 | 		},
503 | 		function (err, results)
504 | 		{
505 | 			self._tries++;
506 | 
507 | 			if (err) {
508 | 				console.error('xx>', 'getStats error: ', err);
509 | 
510 | 				self.setInactive();
511 | 
512 | 				return false;
513 | 			}
514 | 
515 | 			results.end = _.now();
516 | 			results.diff = results.end - self._lastFetch;
517 | 
518 | 			console.sstats('==>', 'Got getStats results in', chalk.reset.cyan(results.diff, 'ms'));
519 | 
520 | 			if(results.peers !== null)
521 | 			{
522 | 				self.stats.active = true;
523 | 				self.stats.peers = results.peers;
524 | 				self.stats.mining = results.mining;
525 | 				self.stats.hashrate = results.hashrate;
526 | 				self.stats.gasPrice = results.gasPrice.toString(10);
527 | 
528 | 				if(results.syncing !== false) {
529 | 					var sync = results.syncing;
530 | 
531 | 					var progress = sync.currentBlock - sync.startingBlock;
532 | 					var total = sync.highestBlock - sync.startingBlock;
533 | 
534 | 					sync.progress = progress/total;
535 | 
536 | 					self.stats.syncing = sync;
537 | 				} else {
538 | 					self.stats.syncing = false;
539 | 				}
540 | 			}
541 | 			else {
542 | 				self.setInactive();
543 | 			}
544 | 
545 | 			self.setUptime();
546 | 
547 | 			self.sendStatsUpdate(forced);
548 | 		});
549 | 	}
550 | }
551 | 
552 | Node.prototype.getPending = function()
553 | {
554 | 	var self = this;
555 | 	var now = _.now();
556 | 
557 | 	if (this._web3)
558 | 	{
559 | 		console.stats('==>', 'Getting Pending')
560 | 
561 | 		web3.eth.getBlockTransactionCount('pending', function (err, pending)
562 | 		{
563 | 			if (err) {
564 | 				console.error('xx>', 'getPending error: ', err);
565 | 				return false;
566 | 			}
567 | 
568 | 			var results = {};
569 | 			results.end = _.now();
570 | 			results.diff = results.end - now;
571 | 
572 | 			console.sstats('==>', 'Got', chalk.reset.red(pending) , chalk.reset.bold.green('pending tx'+ (pending === 1 ? '' : 's') + ' in'), chalk.reset.cyan(results.diff, 'ms'));
573 | 
574 | 			self.stats.pending = pending;
575 | 
576 | 			if(self._lastPending !== pending)
577 | 				self.sendPendingUpdate();
578 | 
579 | 			self._lastPending = pending;
580 | 		});
581 | 	}
582 | }
583 | 
584 | Node.prototype.getHistory = function (range)
585 | {
586 | 	var self = this;
587 | 
588 | 	var history = [];
589 | 	var interv = {};
590 | 
591 | 	console.time('=H=', 'his', 'Got history in');
592 | 
593 | 	if ( _.isUndefined(range) || range === null)
594 | 		interv = _.range(this.stats.block.number - 1, this.stats.block.number - MAX_HISTORY_UPDATE);
595 | 
596 | 	if (!_.isUndefined(range.list))
597 | 		interv = range.list;
598 | 
599 | 	console.stats('his', 'Getting history from', chalk.reset.cyan(interv[0]), 'to', chalk.reset.cyan(interv[interv.length - 1]));
600 | 
601 | 	async.mapSeries(interv, function (number, callback)
602 | 	{
603 | 		web3.eth.getBlock(number, false, callback);
604 | 	},
605 | 	function (err, results)
606 | 	{
607 | 		if (err) {
608 | 			console.error('his', 'history fetch failed:', err);
609 | 
610 | 			results = false;
611 | 		}
612 | 		else
613 | 		{
614 | 			for(var i=0; i < results.length; i++)
615 | 			{
616 | 				results[i] = self.formatBlock(results[i]);
617 | 			}
618 | 		}
619 | 
620 | 		self.emit('history', {
621 | 			id: self.id,
622 | 			history: results.reverse()
623 | 		});
624 | 
625 | 		console.timeEnd('=H=', 'his', 'Got history in');
626 | 	});
627 | }
628 | 
629 | Node.prototype.changed = function ()
630 | {
631 | 	var changed = ! _.isEqual( this._lastStats, JSON.stringify(this.stats) );
632 | 
633 | 	return changed;
634 | }
635 | 
636 | Node.prototype.prepareBlock = function ()
637 | {
638 | 	return {
639 | 		id: this.id,
640 | 		block: this.stats.block
641 | 	};
642 | }
643 | 
644 | Node.prototype.preparePending = function ()
645 | {
646 | 	return {
647 | 		id: this.id,
648 | 		stats: {
649 | 			pending: this.stats.pending
650 | 		}
651 | 	};
652 | }
653 | 
654 | Node.prototype.prepareStats = function ()
655 | {
656 | 	return {
657 | 		id: this.id,
658 | 		stats: {
659 | 			active: this.stats.active,
660 | 			syncing: this.stats.syncing,
661 | 			mining: this.stats.mining,
662 | 			hashrate: this.stats.hashrate,
663 | 			peers: this.stats.peers,
664 | 			gasPrice: this.stats.gasPrice,
665 | 			uptime: this.stats.uptime
666 | 		}
667 | 	};
668 | }
669 | 
670 | Node.prototype.sendBlockUpdate = function()
671 | {
672 | 	this._lastBlockSentAt = _.now();
673 | 	console.stats("wsc", "Sending", chalk.reset.red("block"), chalk.bold.white("update"));
674 | 	this.emit('block', this.prepareBlock());
675 | }
676 | 
677 | Node.prototype.sendPendingUpdate = function()
678 | {
679 | 	console.stats("wsc", "Sending pending update");
680 | 	this.emit('pending', this.preparePending());
681 | }
682 | 
683 | Node.prototype.sendStatsUpdate = function (force)
684 | {
685 | 	if( this.changed() || force ) {
686 | 		console.stats("wsc", "Sending", chalk.reset.blue((force ? "forced" : "changed")), chalk.bold.white("update"));
687 | 		var stats = this.prepareStats();
688 | 		console.info(stats);
689 | 		this.emit('stats', stats);
690 | 		// this.emit('stats', this.prepareStats());
691 | 	}
692 | }
693 | 
694 | Node.prototype.ping = function()
695 | {
696 | 	this._latency = _.now();
697 | 	socket.emit('node-ping', {
698 | 		id: this.id,
699 | 		clientTime: _.now()
700 | 	});
701 | };
702 | 
703 | Node.prototype.setWatches = function()
704 | {
705 | 	var self = this;
706 | 
707 | 	this.setFilters();
708 | 
709 | 	this.updateInterval = setInterval( function(){
710 | 		self.getStats();
711 | 	}, UPDATE_INTERVAL);
712 | 
713 | 	if( !this.pingInterval )
714 | 	{
715 | 		this.pingInterval = setInterval( function(){
716 | 			self.ping();
717 | 		}, PING_INTERVAL);
718 | 	}
719 | 
720 | 	web3.eth.isSyncing(function(error, sync) {
721 | 		if(!error) {
722 | 			if(sync === true) {
723 | 				web3.reset(true);
724 | 				console.info("SYNC STARTED:", sync);
725 | 			} else if(sync) {
726 | 				var synced = sync.currentBlock - sync.startingBlock;
727 | 				var total = sync.highestBlock - sync.startingBlock;
728 | 				sync.progress = synced/total;
729 | 				self.stats.syncing = sync;
730 | 
731 | 				if(self._lastBlock !== sync.currentBlock) {
732 | 					self._latestQueue.push(sync.currentBlock);
733 | 				}
734 | 				console.info("SYNC UPDATE:", sync);
735 | 			} else {
736 | 				console.info("SYNC STOPPED:", sync);
737 | 				self.stats.syncing = false;
738 | 				self.setFilters();
739 | 			}
740 | 		} else {
741 | 			self.stats.syncing = false;
742 | 			self.setFilters();
743 | 			console.error("SYNC ERROR", error);
744 | 		}
745 | 	});
746 | }
747 | 
748 | Node.prototype.setFilters = function()
749 | {
750 | 	var self = this;
751 | 
752 | 	this._latestQueue = async.queue(function (hash, callback)
753 | 	{
754 | 		var timeString = 'Got block ' + chalk.reset.red(hash) + chalk.reset.bold.white(' in') + chalk.reset.green('');
755 | 
756 | 		console.time('==>', timeString);
757 | 
758 | 		web3.eth.getBlock(hash, false, function (error, result)
759 | 		{
760 | 			self.validateLatestBlock(error, result, timeString);
761 | 
762 | 			callback();
763 | 		});
764 | 	}, 1);
765 | 
766 | 	this._latestQueue.drain = function()
767 | 	{
768 | 		console.sstats("Finished processing", 'latest', 'queue');
769 | 
770 | 		self.getPending();
771 | 	}
772 | 
773 | 	this._debouncedChain = debounce(function(hash) {
774 | 		console.stats('>>>', 'Debounced');
775 | 		self._latestQueue.push(hash);
776 | 	}, 120);
777 | 
778 | 	this._debouncedPending = debounce(function() {
779 | 		self.getPending();
780 | 	}, 5);
781 | 
782 | 	try {
783 | 		this.chainFilter = web3.eth.filter('latest');
784 | 		this.chainFilter.watch( function (err, hash)
785 | 		{
786 | 			var now = _.now();
787 | 			var time = now - self._lastChainLog;
788 | 			self._lastChainLog = now;
789 | 
790 | 			if(hash === null)
791 | 			{
792 | 				hash = web3.eth.blockNumber;
793 | 			}
794 | 
795 | 			console.stats('>>>', 'Chain Filter triggered: ', chalk.reset.red(hash), '- last trigger:', chalk.reset.cyan(time));
796 | 
797 | 			if(time < self._chan_min_time)
798 | 			{
799 | 				self._chainDebouncer++;
800 | 				self._chain_debouncer_cnt++;
801 | 
802 | 				if(self._chain_debouncer_cnt > 100)
803 | 				{
804 | 					self._chan_min_time = Math.max(self._chan_min_time + 1, 200);
805 | 					self._max_chain_debouncer = Math.max(self._max_chain_debouncer - 1, 5);
806 | 				}
807 | 			}
808 | 			else
809 | 			{
810 | 				if(time > 5000)
811 | 				{
812 | 					self._chan_min_time = 50;
813 | 					self._max_chain_debouncer = 20;
814 | 					self._chain_debouncer_cnt = 0;
815 | 				}
816 | 				// reset local chain debouncer
817 | 				self._chainDebouncer = 0;
818 | 			}
819 | 
820 | 			if(self._chainDebouncer < self._max_chain_debouncer || now - self._lastBlockSentAt > 5000)
821 | 			{
822 | 				if(now - self._lastBlockSentAt > 5000)
823 | 				{
824 | 					self._lastBlockSentAt = now;
825 | 				}
826 | 
827 | 				self._latestQueue.push(hash);
828 | 			}
829 | 			else
830 | 			{
831 | 				self._debouncedChain(hash);
832 | 			}
833 | 		});
834 | 
835 | 		console.success("Installed chain filter");
836 | 	}
837 | 	catch (err)
838 | 	{
839 | 		this.chainFilter = false;
840 | 
841 | 		console.error("Couldn't set up chain filter");
842 | 		console.error(err);
843 | 	}
844 | 
845 | 	try {
846 | 		this.pendingFilter = web3.eth.filter('pending');
847 | 		this.pendingFilter.watch( function (err, hash)
848 | 		{
849 | 			var now = _.now();
850 | 			var time = now - self._lastPendingLog;
851 | 			self._lastPendingLog = now;
852 | 
853 | 			console.stats('>>>', 'Pending Filter triggered:', chalk.reset.red(hash), '- last trigger:', chalk.reset.cyan(time));
854 | 
855 | 			if(time > 50)
856 | 			{
857 | 				self.getPending();
858 | 			}
859 | 			else
860 | 			{
861 | 				self._debouncedPending();
862 | 			}
863 | 		});
864 | 
865 | 		console.success("Installed pending filter");
866 | 	}
867 | 	catch (err)
868 | 	{
869 | 		this.pendingFilter = false;
870 | 
871 | 		console.error("Couldn't set up pending filter");
872 | 		console.error(err);
873 | 	}
874 | }
875 | 
876 | Node.prototype.init = function()
877 | {
878 | 	// Fetch node info
879 | 	this.getInfo();
880 | 
881 | 	// Start socket connection
882 | 	this.startSocketConnection();
883 | 
884 | 	// Set filters
885 | 	this.setWatches();
886 | }
887 | 
888 | Node.prototype.stop = function()
889 | {
890 | 	if(this._socket)
891 | 		socket.end();
892 | 
893 | 	if(this.updateInterval)
894 | 		clearInterval(this.updateInterval);
895 | 
896 | 	if(this.pingInterval)
897 | 		clearInterval(this.pingInterval);
898 | 
899 | 	web3.reset(false);
900 | }
901 | 
902 | module.exports = Node;
903 | 


--------------------------------------------------------------------------------
/lib/utils/logger.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | var util = require('util');
  4 | var chalk = require('chalk');
  5 | 
  6 | var signs = [
  7 | 	'==>',
  8 | 	'!!!',
  9 | 	'xx>',
 10 | 	'===',
 11 | 	'>>>',
 12 | 	'xxx',
 13 | 	'=H=',
 14 | 	'   '
 15 | ];
 16 | 
 17 | var types = [
 18 | 	'eth',
 19 | 	'wsc',
 20 | 	'sys',
 21 | 	'his'
 22 | ];
 23 | 
 24 | var verbosity = [
 25 | 	[],
 26 | 	['error', 'warn'],
 27 | 	['info', 'error', 'warn', 'success'],
 28 | 	['info', 'stats', 'sstats', 'error', 'warn', 'success', 'time', 'timeEnd']
 29 | ];
 30 | 
 31 | var ENV_VERBOSITY = process.env.VERBOSITY || 2;
 32 | 
 33 | [
 34 | 	{
 35 | 		name: "info",
 36 | 		sign: '=i=',
 37 | 		signColor: chalk.blue,
 38 | 		messageColor: chalk.bold,
 39 | 		formatter: function (sign, message)
 40 | 		{
 41 | 			return [sign, message];
 42 | 		}
 43 | 	},
 44 | 	{
 45 | 		name: "stats",
 46 | 		inherit: 'log',
 47 | 		sign: '=s=',
 48 | 		signColor: chalk.blue,
 49 | 		messageColor: chalk.bold,
 50 | 		formatter: function (sign, message)
 51 | 		{
 52 | 			return [sign, message];
 53 | 		}
 54 | 	},
 55 | 	{
 56 | 		name: "success",
 57 | 		inherit: 'log',
 58 | 		sign: '=✓=',
 59 | 		signColor: chalk.green,
 60 | 		messageColor: chalk.bold.green,
 61 | 		formatter: function (sign, message)
 62 | 		{
 63 | 			return [sign, message];
 64 | 		}
 65 | 	},
 66 | 	{
 67 | 		name: "sstats",
 68 | 		inherit: 'log',
 69 | 		sign: '=✓=',
 70 | 		signColor: chalk.green,
 71 | 		messageColor: chalk.bold.green,
 72 | 		formatter: function (sign, message)
 73 | 		{
 74 | 			return [sign, message];
 75 | 		}
 76 | 	},
 77 | 	{
 78 | 		name: "warn",
 79 | 		sign: '=!=',
 80 | 		signColor: chalk.yellow,
 81 | 		messageColor: chalk.bold.yellow,
 82 | 		formatter: function (sign, message)
 83 | 		{
 84 | 			return [sign, message];
 85 | 		}
 86 | 	},
 87 | 	{
 88 | 		name: "error",
 89 | 		sign: '=✘=',
 90 | 		signColor: chalk.red,
 91 | 		messageColor: chalk.bold.red,
 92 | 		formatter: function (sign, message)
 93 | 		{
 94 | 			return [sign, message];
 95 | 		}
 96 | 	},
 97 | 	{
 98 | 		name: "time",
 99 | 		sign: '=T=',
100 | 		signColor: chalk.cyan,
101 | 		messageColor: chalk.bold,
102 | 		formatter: function (sign, message)
103 | 		{
104 | 			return [util.format.apply(util, [sign, message])];
105 | 		}
106 | 	},
107 | 	{
108 | 		name: "timeEnd",
109 | 		sign: '=T=',
110 | 		signColor: chalk.cyan,
111 | 		messageColor: chalk.bold,
112 | 		formatter: function (sign, message)
113 | 		{
114 | 			return [util.format.apply(util, [sign, message])];
115 | 		}
116 | 	}
117 | ].forEach( function (item)
118 | {
119 | 	var fnName = item.name;
120 | 
121 | 	if(item.inherit !== undefined)
122 | 		console[item.name] = console[item.inherit];
123 | 
124 | 	var fn = console[item.name];
125 | 
126 | 	console[item.name] = function ()
127 | 	{
128 | 		if(verbosity[ENV_VERBOSITY].indexOf(fnName) === -1)
129 | 			return false;
130 | 
131 | 		var args = Array.prototype.slice.call(arguments);
132 | 		var sign = item.sign;
133 | 		var section = 'eth';
134 | 		var message = '';
135 | 
136 | 		if (signs.indexOf(args[0]) >= 0)
137 | 		{
138 | 			sign = args.splice(0, 1);
139 | 		}
140 | 
141 | 		if (types.indexOf(args[0]) >= 0)
142 | 		{
143 | 			section = args.splice(0, 1);
144 | 		}
145 | 
146 | 		sign = item.signColor( '[' + section + '] ' + sign );
147 | 
148 | 		if (typeof args[0] === 'object')
149 | 		{
150 | 			message = util.inspect( args[0], { depth: null, colors: true } );
151 | 		}
152 | 		else {
153 | 			message = item.messageColor( util.format.apply(util, args) );
154 | 		}
155 | 
156 | 		return fn.apply( this, item.formatter(sign, message) );
157 | 	}
158 | });


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "eth-net-intelligence-api",
 3 |   "description": "Ethereum Network Intelligence API",
 4 |   "version": "0.1.1",
 5 |   "private": true,
 6 |   "main": "./app.js",
 7 |   "directories": {
 8 |     "lib": "./lib"
 9 |   },
10 |   "dependencies": {
11 |     "async": "^1.0.0",
12 |     "chalk": "^1.0.0",
13 |     "debounce": "1.0.0",
14 |     "debug": "2.2.0",
15 |     "lodash": "4.1.0",
16 |     "primus": "4.0.5",
17 |     "primus-emit": "1.0.0",
18 |     "primus-spark-latency": "0.1.1",
19 |     "web3": "0.15.3",
20 |     "ws": "^1.0.1"
21 |   },
22 |   "scripts": {
23 |     "start": "node ./app.js"
24 |   },
25 |   "repository": {
26 |     "type": "git",
27 |     "url": "https://github.com/cubedro/eth-net-intelligence-api.git"
28 |   },
29 |   "homepage": "https://github.com/cubedro/eth-net-intelligence-api",
30 |   "bugs": {
31 |     "url": "https://github.com/cubedro/eth-net-intelligence-api/issues"
32 |   },
33 |   "keywords": [
34 |     "ethereum",
35 |     "network",
36 |     "intelligence",
37 |     "API"
38 |   ],
39 |   "author": "ethdev.com",
40 |   "authors": [
41 |     {
42 |       "name": "Marian Oancea",
43 |       "email": "marian@ethdev.com",
44 |       "url": "https://github.com/cubedro"
45 |     }
46 |   ],
47 |   "license": "LGPL-3.0"
48 | }
49 | 


--------------------------------------------------------------------------------
/processes-ec2.json:
--------------------------------------------------------------------------------
 1 | [
 2 |   {
 3 |     "name"              : "eth",
 4 |     "cwd"               : "/home/ubuntu/bin/www/",
 5 |     "script"            : "bin/eth.sh",
 6 |     "args"              : "ethpassword",
 7 |     "log_date_format"   : "YYYY-MM-DD HH:mm Z",
 8 |     "log_file"          : "/home/ubuntu/logs/eth-log.log",
 9 |     "out_file"          : "/home/ubuntu/logs/eth-out.log",
10 |     "error_file"        : "/home/ubuntu/logs/eth-err.log",
11 |     "merge_logs"        : false,
12 |     "watch"             : false,
13 |     "max_restarts"      : 10,
14 |     "exec_interpreter"  : "bash",
15 |     "exec_mode"         : "fork_mode"
16 |   },
17 |   {
18 |     "name"              : "node-app",
19 |     "cwd"               : "/home/ubuntu/bin/www/",
20 |     "script"            : "app.js",
21 |     "log_date_format"   : "YYYY-MM-DD HH:mm Z",
22 |     "log_file"          : "/home/ubuntu/logs/node-app-log.log",
23 |     "out_file"          : "/home/ubuntu/logs/node-app-out.log",
24 |     "error_file"        : "/home/ubuntu/logs/node-app-err.log",
25 |     "merge_logs"        : false,
26 |     "watch"             : false,
27 |     "max_restarts"      : 10,
28 |     "exec_interpreter"  : "node",
29 |     "exec_mode"         : "fork_mode",
30 |     "env":
31 |     {
32 |       "NODE_ENV"        : "production",
33 |       "RPC_HOST"        : "localhost",
34 |       "RPC_PORT"        : "8545",
35 |       "LISTENING_PORT"  : "30303",
36 |       "INSTANCE_NAME"   : "",
37 |       "CONTACT_DETAILS" : "",
38 |       "WS_SERVER"       : "wss://rpc.ethstats.net",
39 |       "WS_SECRET"       : "see http://forum.ethereum.org/discussion/2112/how-to-add-yourself-to-the-stats-dashboard-its-not-automatic",
40 |       "VERBOSITY"       : 2
41 |     }
42 |   }
43 | ]
44 | 


--------------------------------------------------------------------------------