From eba899d78a9dbd9ded42054b134647b668d915c3 Mon Sep 17 00:00:00 2001
From: Robert Martin-Legene <robert@martin-legene.dk>
Date: Fri, 4 Sep 2020 06:50:02 -0300
Subject: [PATCH] Nicer user interface, when BFA Registro demands that you
prove control of an account.
---
bin/registro-verificar | 259 +++++++++++++++++++++++++++++++++++++++++
package.json | 3 +-
2 files changed, 261 insertions(+), 1 deletion(-)
create mode 100755 bin/registro-verificar
diff --git a/bin/registro-verificar b/bin/registro-verificar
new file mode 100755
index 0000000..2ce53f3
--- /dev/null
+++ b/bin/registro-verificar
@@ -0,0 +1,259 @@
+#!/usr/bin/node
+
+const Web3 = require( 'web3' );
+// make sure we die early if this is not installed
+const dummy = require( 'web3-eth-accounts' );
+const fs = require( 'fs' );
+var web3 = new Web3( 'http://localhost:8545/' );
+var myArgs = process.argv.slice(2);
+var myaccount = myArgs[0];
+var proof = myArgs[1];
+var contractaddr;
+var networkid;
+var chainid;
+var rawdata;
+var estimate;
+
+if ( myArgs.length != 2 )
+{
+ console.error( "Wrong number of arguments: "+process.argv[1]+" <account> <proof>");
+ process.exit( 1 );
+}
+
+function findMatchingFile( needle, accountdir )
+{
+ return new Promise(
+ function(resolve, reject)
+ {
+ needle = needle.toLowerCase();
+ let haystack = fs.readdirSync( accountdir, 'utf8' );
+ haystack.forEach(
+ (filename) => {
+ if ( filename.toLowerCase().endsWith('--'+needle) )
+ resolve(accountdir + filename);
+ }
+ );
+ reject( 'Account not found. Try specifying the absolute path to your key file, or set one of $BFAHOME $BFANETWORKDIR $BFANODEDIR $KEYSTORE' );
+ }
+ );
+}
+
+function findaccountfile( accountfile )
+{
+ return new Promise(
+ function( resolve, reject )
+ {
+ // find account file
+ let accountdir;
+ // is it actually just a file?
+ if ( accountfile.includes('/') )
+ {
+ resolve( accountfile );
+ return;
+ }
+ // strip leading '0x' from the account name, if present
+ if ( accountfile.startsWith( '0x' ) )
+ accountfile = accountfile.substring(2);
+ // if not a file, then look (only) at the most specific directory we have been told about.
+ if ( process.env.KEYSTORE !== undefined )
+ accountdir = process.env.KEYSTORE;
+ else
+ if ( process.env.BFANODEDIR !== undefined )
+ accountdir = process.env.BFANODEDIR + '/keystore/';
+ else
+ if ( process.env.BFANETWORKDIR !== undefined )
+ accountdir = process.env.BFANETWORKDIR + '/node/keystore/';
+ else
+ if ( process.env.BFAHOME !== undefined )
+ accountdir = process.env.BFAHOME + '/network/node/keystore/';
+ else
+ accountdir = process.env.HOME + '.geth/keystore';
+ findMatchingFile( myaccount, accountdir )
+ .then( resolve )
+ .catch( reject );
+ }
+ );
+}
+
+function loadaccount( path )
+{
+ return new Promise(
+ function( resolve, reject )
+ {
+ let contents = fs.readFileSync( path, 'utf8' );
+ fs.readFile( path, 'utf8', (err,data) => {
+ if ( err )
+ {
+ reject( err );
+ return;
+ }
+ let keystore;
+ try {
+ keystore = JSON.parse( data );
+ }
+ catch(e)
+ {
+ reject( e );
+ return;
+ }
+ let w;
+ try {
+ w = web3.eth.accounts.wallet.decrypt( [keystore], '' );
+ }
+ catch(e)
+ {
+ reject( e );
+ return;
+ }
+ // Make sure we have the address properly written (instead of a
+ // filename) if that was given as parameter when starting the program.
+ if ( w === undefined )
+ {
+ reject( "Unable to decrypt the key file." );
+ return;
+ }
+ myaccount = w[0]["address"];
+ resolve();
+ });
+ }
+ );
+}
+
+function gasestimate(method)
+{
+ return new Promise(
+ function( resolve, reject )
+ {
+ method.estimateGas()
+ .then( g => { estimate = g } )
+ .then( resolve )
+ }
+ );
+}
+
+function getnetworkid()
+{
+ return new Promise(
+ function( resolve, reject )
+ {
+ web3.eth.net.getId()
+ .then( id => {
+ networkid = id;
+ if ( networkid == 0xb10c4d39a )
+ {
+ contractaddr = "0xc3cF96aF51d3c41DfBE428dE75a8E5597d4D7A7B";
+ chainid = 0xbfa2018;
+ }
+ else
+ {
+ reject( "There is insufficient information to function on this chain." );
+ return;
+ }
+ resolve();
+ });
+ }
+ );
+}
+
+function getnonce( account )
+{
+ return new Promise(
+ function( resolve, reject )
+ {
+ // Cuantas transacciones ya hemos hecho?
+ web3.eth.getTransactionCount( account )
+ .then( txcount => {
+ nonce = txcount;
+ resolve();
+ });
+ }
+ );
+}
+
+function prepareCall()
+{
+ var abi = [ {
+ "name" : "proveControl",
+ "type" : "function",
+ "inputs" : [ { "name": "key", "type": "string" } ],
+ "outputs" : [ { "name": "", "type": "bool" } ],
+ "constant" : false,
+ "payable" : false,
+ "stateMutability" : "nonpayable"
+ } ];
+ return new Promise(
+ function(resolve, reject)
+ {
+ let p1 = getnetworkid();
+ let p2 = getnonce( myaccount );
+ Promise.all([ p1, p2 ])
+ .then( () => {
+ if ( contractaddr === undefined )
+ {
+ reject( "The contract address is not defined for this network." );
+ return;
+ }
+ // Creá una instancia del contrato
+ var contractInstance = new web3.eth.Contract(abi, contractaddr );
+ //Estimá el gas que vas a gastar
+ let method = contractInstance.methods.proveControl( proof );
+ rawdata = method.encodeABI();
+ gasestimate( method ).
+ then( resolve );
+ });
+ }
+ );
+}
+
+function signrawtx()
+{
+ //Generá una transacción
+ let promise = web3.eth.accounts.signTransaction(
+ {
+ "from" : myaccount,
+ "to" : contractaddr,
+ "nonce" : nonce,
+ "value" : 0,
+ "data" : rawdata,
+ "gas" : estimate,
+ "gasPrice" : 1000000000,
+ "common" :
+ {
+ "customChain" :
+ {
+ "name" : "BFA 2018",
+ "chainId" : chainid,
+ "networkId" : networkid
+ }
+ }
+ },
+ web3.eth.accounts.wallet[0].privateKey
+ );
+ return promise;
+}
+
+function printRecepts( r )
+{
+ console.log( "blockNumber: " + r.blockNumber );
+ console.log( "transactionHash: " + r.transactionHash );
+ console.log( "Status: " + (r.status?'Transaction successful':'Transaction failed') );
+}
+
+findaccountfile( myaccount )
+.then( (path)=> { return loadaccount(path) } )
+// prepara la instancia del contrato
+.then ( prepareCall )
+// Firma "offline"
+.then( () => { return signrawtx() })
+// Manda la transaccion a la blockchain
+.then( tx => {
+ console.log( "Sending this transaction: " + tx.rawTransaction );
+// web3.eth.sendSignedTransaction( tx.rawTransaction )
+// //Obtené el recibo.
+// .once( 'receipt', printReceipt );
+})
+.catch( e => {
+ console.error( "Oh no. Something most definitely seems to have gone wrong. What I was told is:" );
+ console.error( e );
+});
+
diff --git a/package.json b/package.json
index 6851a64..20d4037 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,8 @@
"bignumber.js": "^9.0.0",
"request": "^2.88.0",
"require": "^2.4.20",
- "web3": "^1.0.0-beta.55",
+ "web3": "^1.2.11",
+ "web3-eth-accounts": "^1.2.11",
"xmlhttprequest-ssl": "^1.5.5"
},
"repository": {
--
GitLab