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Merge pull request #239 from oasisprotocol/CU-8692tq8gw_Remove-Ethers…
…-5_Xi-Zhang Remove Ethers v5
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| import { createServer, IncomingMessage, ServerResponse } from 'node:http'; | ||
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| import { decodeRlp, getBytes } from 'ethers'; | ||
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| import * as cborg from 'cborg'; | ||
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| import fetch from 'node-fetch'; | ||
| import { assert } from 'console'; | ||
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| async function getBody(request: IncomingMessage): Promise<string> { | ||
| return new Promise((resolve) => { | ||
| const bodyParts: Uint8Array[] = []; | ||
| let body: string; | ||
| request | ||
| .on('data', (chunk) => { | ||
| bodyParts.push(chunk); | ||
| }) | ||
| .on('end', () => { | ||
| body = Buffer.concat(bodyParts).toString(); | ||
| resolve(body); | ||
| }); | ||
| }); | ||
| } | ||
|
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| createServer(onRequest).listen(3000); | ||
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| interface JSONRPCRequest { | ||
| jsonrpc: string; | ||
| method: string; | ||
| params: any[]; | ||
| id: number; | ||
| } | ||
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| async function onRequest(req: IncomingMessage, response: ServerResponse) { | ||
| if (req.method != 'POST') { | ||
| response.writeHead(500, 'Not POST!'); | ||
| response.end(); | ||
| return; | ||
| } | ||
|
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| const inputBody = JSON.parse(await getBody(req)) as JSONRPCRequest; | ||
| const encryptableMethods = [ | ||
| 'eth_estimateGas', | ||
| 'eth_call', | ||
| 'eth_sendRawTransaction', | ||
| ]; | ||
| const loggedMethods = encryptableMethods.concat(['oasis_callDataPublicKey']); | ||
|
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| let bodies: JSONRPCRequest[]; | ||
| if (Array.isArray(inputBody)) { | ||
| bodies = inputBody; | ||
| } else { | ||
| bodies = [inputBody]; | ||
| } | ||
|
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| for (const body of bodies) { | ||
| const log = loggedMethods.includes(body.method); | ||
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| if (log) { | ||
| if (body.method == 'oasis_callDataPublicKey') { | ||
| console.log(req.method, req.url, body.method); | ||
| } else if ( | ||
| body.method == 'eth_estimateGas' || | ||
| body.method == 'eth_call' | ||
| ) { | ||
| try { | ||
| const x = getBytes(body.params[0].data); | ||
| const y = cborg.decode(x); | ||
| // Verify envelope format == 1 (encrypted) | ||
| if ('data' in y) { | ||
| // EIP-712 signed queries are wrapped as follows: | ||
| // {data: {body{pk:,data:,nonce:},format:},leash:{nonce:,block_hash:,block_range:,block_number:},signature:} | ||
| assert(y.data.format == 1); | ||
| } else { | ||
| assert(y.format == 1); | ||
| } | ||
| console.log('ENCRYPTED', req.method, req.url, body.method); | ||
| } catch (e: any) { | ||
| console.log('NOT ENCRYPTED', req.method, req.url, body.method); | ||
| } | ||
| } else if (body.method == 'eth_sendRawTransaction') { | ||
| try { | ||
| const x = getBytes(body.params[0]); | ||
| const y = decodeRlp(x) as string[]; //console.log(pj); | ||
| const z = cborg.decode(getBytes(y[5])); | ||
| assert(z.format == 1); // Verify envelope format == 1 (encrypted) | ||
| console.log('ENCRYPTED', req.method, req.url, body.method); | ||
| } catch (e: any) { | ||
| console.log( | ||
| 'NOT ENCRYPTED', | ||
| req.method, | ||
| req.url, | ||
| body.method, | ||
| body.params, | ||
| ); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| const pr = await fetch('http://127.0.0.1:8545/', { | ||
| method: 'POST', | ||
| body: JSON.stringify(inputBody), | ||
| headers: { 'Content-Type': 'application/json' }, | ||
| }); | ||
|
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| const pj = await pr.json(); | ||
|
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| response.writeHead(200, 'OK'); | ||
| response.write(JSON.stringify(pj)); | ||
| response.end(); | ||
| } |
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