mirror of
https://github.com/status-im/hackathon-registration-dapp.git
synced 2025-01-21 01:59:47 +00:00
Verifying with orbit if the code is being processed
This commit is contained in:
Richard Ramos
parent
6fd1d2b53a
commit
e93b1675b8
116
app/js/index.js
116
app/js/index.js
@ -7,6 +7,15 @@ import { sha3 } from 'ethereumjs-util';
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import merkle from 'merkle-tree-solidity';
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import SNTGiveaway from 'Embark/contracts/SNTGiveaway';
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import SNT from 'Embark/contracts/SNT';
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import IPFS from 'ipfs';
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import OrbitDB from 'orbit-db';
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import { start } from 'ipfs/src/core/components';
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const ipfsOptions = {
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EXPERIMENTAL: {
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pubsub: true
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}
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};
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window.SNTGiveaway = SNTGiveaway;
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window.SNT = SNT;
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@ -18,54 +27,95 @@ class App extends React.Component {
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this.state = {
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error: false,
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errorMessage: ''
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errorMessage: '',
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ready: false
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};
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}
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componentDidMount(){
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EmbarkJS.onReady(async (error) => {
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if(error){
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alert("Error loading the DAPP");
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return;
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}
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const code = location.hash.replace("#"); // QR code value, i.e.: a8cd4b33bc
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const accounts = await web3.eth.getAccounts();
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web3.eth.defaultAccount = accounts[0];
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if(!code) {
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this.setState({error: true, errorMessage: "Code is required"});
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return;
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}
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const merkleTree = new merkle(merkleData.elements);
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const hashedCode = sha3(code); // Code converted to format used on merkletree
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const proof = merkleTree.getProof(hashedCode);
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if(error){
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this.setState({error: true, errorMessage: "Error loading the DAPP - Contact your nearest Status Core Developer"});
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console.error(error);
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return;
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}
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const ipfs = new IPFS(ipfsOptions)
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// TODO: Call the contract function validRequest(bytes32[] _proof, bytes5 _code, address _dest)
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// The values to send are, a merkle proof, code, and the web3.eth.defaultAccount.
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// The merkle proof function uses a bytes32 hash, so you need to use hashedCode
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// TODO: if result is false, show error or something because the code is invalid or has been used
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// TODO: you may use the sentToAddress(web3.eth.defaultAddress) or codeUsed("0x" + code) to identify as well if the code / address has been used before, and redirect dierctly to ENS
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// TODO: if result is true the code hasn't been processed. Proceed to verify if the background service will process that transaction
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// TODO: use orbit db, check if exist a value in a orbitdb keyvalue store `status-hackathon-transactions2` Address of db can be seen by executing node server/main.js
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// the key to use is the code
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// TODO: if a value exists, the background service will process this code, show a message indicating that transaction is being processed
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// TODO: if it doesnt,
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// let's add a value to the status-fund-requests2 orbitdb log store, with a json containing the data used to invoke the validRequest contract function (all values must be strings): {code, proof: proof: proof.map(x => '0x' + x.toString('hex')), address}
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// show a message indicating that transaction is being processed
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//
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ipfs.on('error', (e) => {
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this.setState({error: true, errorMessage: "Error loading the DAPP - Contact your nearest Status Core Developer"});
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console.error(e);
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});
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// We'll deal with the redirect to ENS Registration after the previous code is implemented, and the background service is done processing the transaction
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ipfs.on('ready', async () => {
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try {
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const orbitdb = new OrbitDB(ipfs);
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start(orbitdb);
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} catch (error) {
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this.setState({error: true, errorMessage: "Error loading the DAPP - Contact your nearest Status Core Developer"});
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console.error(error);
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return;
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}
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});
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});
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}
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async start(orbitdb){
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const code = location.hash.replace("#"); // QR code value, i.e.: a8cd4b33bc
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const accounts = await web3.eth.getAccounts();
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web3.eth.defaultAccount = accounts[0];
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if(!code) {
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this.setState({error: true, errorMessage: "Code is required"});
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return;
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}
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const merkleTree = new merkle(merkleData.elements);
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const hashedCode = sha3(code); // Code converted to format used on merkletree
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const proof = merkleTree.getProof(hashedCode);
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const sentToAddress = await contract.methods.sentToAddress(web3.eth.defaultAccount).call();
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const usedCode = await contract.methods.usedCode( '0x' + code,).call();
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const validRequest = await contract.methods.validRequest(proof, '0x' + code, web3.eth.defaultAccount).call();
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if(sentToAddress || usedCode){
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window.location = "http://status.im"; // TODO: redirect to ENS Registration DAPP URL
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}
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if(!validRequest){
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this.setState({error: true, errorMessage: "Invalid Code"});
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return;
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}
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// Create / Open a database
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const transactionsDb = await orbitdb.keyvalue("/orbitdb/QmVL48QDwdagfGnwcasTxuGTynTxpzJbiZVgLwoiW7Cg7e/status-hackathon-transactions2");
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await transactionsDb.load();
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const transaction = await transactionStore.get(code);
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if(transaction){
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// TODO: show a message indicating that transaction is already being processed
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} else {
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// TODO: let's add a value to the status-fund-requests2 orbitdb log store, with a json containing the data used to invoke the validRequest contract function (all values must be strings): {code, proof: proof: proof.map(x => '0x' + x.toString('hex')), address}
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// show a message indicating that transaction is being processed
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// /orbitdb/QmQ7dJmRiCwWGNgjDoUKX9xhdVA8vcS92R1h8S4uj1sm6v/status-hackathon-fund-requests2
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}
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// Listen for updates
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transactionsDb.events.on('replicated', (address) => {
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// TODO: trigger check
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// TODO: We'll deal here with the redirect to ENS Registration. Verify if the transaction is processed and redirect or something
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});
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this.setState({ready: true});
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}
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render(){
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// TODO: manage errors
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// TODO: state.error == true, show message
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// TODO: state.ready == show result?
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return <h1>Hello World</h1>
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}
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}
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15
package.json
15
package.json
@ -23,16 +23,17 @@
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"@babel/plugin-syntax-import-meta": "^7.0.0"
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},
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"dependencies": {
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"crypto": "^1.0.1",
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"ethereumjs-util": "^5.2.0",
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"ipfs-api": "^24.0.2",
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"merkle-tree-solidity": "^1.0.8",
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"orbit-db": "^0.19.9",
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"web3": "^1.0.0-beta.34",
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"@material-ui/core": "^3.0.0",
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"@material-ui/icons": "^3.0.0",
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"@material-ui/lab": "^1.0.0-alpha.12",
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"crypto": "^1.0.1",
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"ethereumjs-util": "^5.2.0",
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"ipfs": "^0.32.3",
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"ipfs-api": "^24.0.2",
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"merkle-tree-solidity": "^1.0.8",
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"orbit-db": "^0.19.9",
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"react": "^16.4.2",
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"react-dom": "^16.4.2"
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"react-dom": "^16.4.2",
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"web3": "^1.0.0-beta.34"
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}
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}
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