// ==UserScript==
// @name V2EX Solana Token Assistant
// @namespace http://tampermonkey.net/
// @version 1.6
// @description 在 V2EX 用户首页和评论列表中显示 $V2EX 代币持仓量，在评论中直接打赏 $V2EX
// @match https://*.v2ex.com/member/*
// @match https://v2ex.com/member/*
// @match https://*.v2ex.com/t/*
// @match https://v2ex.com/t/*
// @require https://unpkg.com/@solana/web3.js@latest/lib/index.iife.min.js
// @grant none
// @run-at document-end
// @license MIT
// ==/UserScript==
(async function () {
'use strict';
const TOKEN_MINT = "9raUVuzeWUk53co63M4WXLWPWE4Xc6Lpn7RS9dnkpump";
const RPC_URL = "https://solana-rpc.publicnode.com";
async function connectWallet() {
const provider = window.phantom?.solana;
if (!provider?.isPhantom) {
return null;
}
try {
const resp = await provider.connect();
return { provider, publicKey: new solanaWeb3.PublicKey(resp.publicKey.toString()) };
} catch (err) {
return null;
}
}
async function getAssociatedTokenAddress(walletPublicKey, mintPublicKey, rpcUrl) {
const connection = new solanaWeb3.Connection(rpcUrl, "confirmed");
const TOKEN_PROGRAM_ID = new solanaWeb3.PublicKey("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA");
try {
const response = await connection.getProgramAccounts(TOKEN_PROGRAM_ID, {
filters: [
{ dataSize: 165 },
{ memcmp: { offset: 0, bytes: mintPublicKey.toBase58() } },
{ memcmp: { offset: 32, bytes: walletPublicKey.toBase58() } },
],
});
return response.length > 0 ? response[0].pubkey.toBase58() : null;
} catch (err) {
console.log("查询 ATA 失败: " + err.message);
}
}
function createTransferInstructionData(amount) {
const data = new Uint8Array(9);
data[0] = 3;
const amountBigInt = BigInt(amount);
for (let i = 0; i < 8; i++) {
data[i + 1] = Number((amountBigInt >> BigInt(i * 8)) & BigInt(0xff));
}
return data;
}
async function calculateAssociatedTokenAddress(walletPublicKey, mintPublicKey) {
const TOKEN_PROGRAM_ID = new solanaWeb3.PublicKey("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA");
const ASSOCIATED_TOKEN_PROGRAM_ID = new solanaWeb3.PublicKey("ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL");
const [ata] = await solanaWeb3.PublicKey.findProgramAddress(
[
walletPublicKey.toBuffer(),
TOKEN_PROGRAM_ID.toBuffer(),
mintPublicKey.toBuffer(),
],
ASSOCIATED_TOKEN_PROGRAM_ID
);
return ata.toBase58();
}
async function createAssociatedTokenAccountInstruction(payer, walletAddress, mint) {
const ASSOCIATED_TOKEN_PROGRAM_ID = new solanaWeb3.PublicKey("ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL");
const TOKEN_PROGRAM_ID = new solanaWeb3.PublicKey("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA");
const ata = await calculateAssociatedTokenAddress(new solanaWeb3.PublicKey(walletAddress), new solanaWeb3.PublicKey(mint));
return new solanaWeb3.TransactionInstruction({
keys: [
{ pubkey: new solanaWeb3.PublicKey(payer), isSigner: true, isWritable: true },
{ pubkey: new solanaWeb3.PublicKey(ata), isSigner: false, isWritable: true },
{ pubkey: new solanaWeb3.PublicKey(walletAddress), isSigner: false, isWritable: false },
{ pubkey: new solanaWeb3.PublicKey(mint), isSigner: false, isWritable: false },
{ pubkey: solanaWeb3.PublicKey.default, isSigner: false, isWritable: false },
{ pubkey: TOKEN_PROGRAM_ID, isSigner: false, isWritable: false },
{ pubkey: ASSOCIATED_TOKEN_PROGRAM_ID, isSigner: false, isWritable: false },
],
programId: ASSOCIATED_TOKEN_PROGRAM_ID,
data: new Uint8Array(0),
});
}
async function transferSPLToken(toAddress, inputAmount) {
const rpcUrl = RPC_URL;
const connection = new solanaWeb3.Connection(rpcUrl, "confirmed");
const recipientAddress = toAddress;
const mintAddress = TOKEN_MINT;
const userInputAmount = inputAmount;
try {
const { provider, publicKey } = await connectWallet();
const amount = Math.floor(userInputAmount * Math.pow(10, 6));
let fromATA = await getAssociatedTokenAddress(publicKey, new solanaWeb3.PublicKey(mintAddress), rpcUrl);
if (!fromATA) {
alert("你暂未创建 $V2EX 代币地址");
return;
}
const instructions = [];
let toATA = await getAssociatedTokenAddress(new solanaWeb3.PublicKey(recipientAddress), new solanaWeb3.PublicKey(mintAddress), rpcUrl);
if (!toATA) {
toATA = await calculateAssociatedTokenAddress(new solanaWeb3.PublicKey(recipientAddress), new solanaWeb3.PublicKey(mintAddress));
instructions.push(
await createAssociatedTokenAccountInstruction(publicKey.toBase58(), recipientAddress, mintAddress)
);
}
instructions.push(
new solanaWeb3.TransactionInstruction({
keys: [
{ pubkey: new solanaWeb3.PublicKey(fromATA), isSigner: false, isWritable: true },
{ pubkey: new solanaWeb3.PublicKey(toATA), isSigner: false, isWritable: true },
{ pubkey: publicKey, isSigner: true, isWritable: false },
],
programId: new solanaWeb3.PublicKey("TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"),
data: createTransferInstructionData(amount),
})
);
const transaction = new solanaWeb3.Transaction();
instructions.forEach((instruction) => transaction.add(instruction));
const { blockhash } = await connection.getLatestBlockhash();
transaction.recentBlockhash = blockhash;
transaction.feePayer = publicKey;
const { signature } = await provider.signAndSendTransaction(transaction);
alert('打赏成功！' + signature);
} catch (err) {
alert('打赏失败：' + err.message);
}
}
async function getSplTokenAmountAndPubkey(owner, mint) {
const url = "https://solana-rpc.publicnode.com";
const payload = {
"jsonrpc": "2.0",
"id": 1,
"method": "getTokenAccountsByOwner",
"params": [
owner,
{ "mint": mint },
{ "encoding": "jsonParsed" }
]
};
const res = await fetch(url, {
method: "POST",
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify(payload)
});
const data = await res.json();
try {
const value = data.result.value;
if (value === null || value.length === 0) {
return {
amount: "0.0",
pubkey: ""
};
} else {
let amount = value[0].account.data.parsed.info.tokenAmount.uiAmount;
amount = amount == 0 ? "0.0" : amount;
return {
amount: amount,
pubkey: value[0].pubkey
};
}
} catch (e) {
return null;
}
}
if (window.location.pathname.startsWith('/member/')) {
const scripts = Array.from(document.querySelectorAll('script'));
let address = null;
for (const script of scripts) {
const text = script.textContent.trim();
const match = text.match(/const\s+address\s*=\s*"([^"]+)"/);
if (match) {
address = match[1];
break;
}
}
if (!address) {
return;
}
const result = await getSplTokenAmountAndPubkey(address, TOKEN_MINT);
if (result === null) {
return;
}
const balance = result.amount;
const linkAddress = result.pubkey ? address : result.pubkey;
const newHtml = `
<div class="sep5"></div>
<div class="flex-one-row" style="display: inline-flex; gap: 5px;">
<div class="badges">
<div class="badge" style="background-color: #000; color: #fff;">$V2EX</div>
</div>
<span>持有 </span>
<a href="https://solscan.io/account/${linkAddress}" target="_blank">${balance}</a>
</div>
`;
let targetElement = document.querySelector('a[href="/top/dau"]');
if (targetElement) {
targetElement.insertAdjacentHTML('afterend', newHtml);
} else {
const span = [...document.querySelectorAll('span.gray')].find(el =>
el.textContent.includes('号会员，加入于')
);
if (span) {
span.insertAdjacentHTML('beforeend', newHtml);
}
}
} else {
document.querySelectorAll('div.thank_area').forEach(div => {
if (/^thank_area_\w+$/.test(div.id)) {
const aHodl = document.createElement('a');
aHodl.href = '#;';
aHodl.className = 'thank';
aHodl.innerHTML = '查看持仓';
aHodl.addEventListener('click', async (e) => {
e.preventDefault();
const td = div.closest('td');
if (!td) {
aHodl.innerHTML = '加载失败';
return;
}
const userLink = td.querySelector('a.dark[href^="/member/"]');
if (userLink) {
aHodl.innerHTML = '加载中...';
try {
const res = await fetch(userLink.href);
const html = await res.text();
const match = html.match(/<script>\s*const address = "(.*?)";\s*<\/script>/);
if (match && match[1]) {
const result = await getSplTokenAmountAndPubkey(match[1], TOKEN_MINT);
if (result === null) {
aHodl.innerHTML = '加载失败';
} else {
aHodl.innerHTML = `持有 ${result.amount}`;
}
} else {
aHodl.innerHTML = '未绑定 Solana 钱包';
}
} catch (err) {
aHodl.innerHTML = '加载失败';
}
} else {
aHodl.innerHTML = '加载失败';
}
});
div.insertAdjacentHTML('beforeend', ' ');
div.insertAdjacentElement('beforeend', aHodl);
const aTip = document.createElement('a');
aTip.href = '#;';
aTip.className = 'thank';
aTip.innerHTML = '打赏';
aTip.addEventListener('click', async (e) => {
e.preventDefault();
const td = div.closest('td');
if (!td) {
aTip.innerHTML = '加载失败';
return;
}
const userLink = td.querySelector('a.dark[href^="/member/"]');
if (userLink) {
aTip.innerHTML = '加载中...';
try {
const res = await fetch(userLink.href);
const html = await res.text();
const match = html.match(/<script>\s*const address = "(.*?)";\s*<\/script>/);
if (match && match[1]) {
const userInputAmount = prompt('请输入要打赏的数量', '1');
if (userInputAmount !== null && userInputAmount.trim() !== "") {
const number = Number(userInputAmount);
if (Number.isInteger(number) && number > 0) {
if (confirm("确认向 " + userLink.innerHTML + " 打赏 " + number + " $V2EX 吗？")) {
aTip.innerHTML = '打赏中...';
await transferSPLToken(match[1], number);
}
}
}
aTip.innerHTML = '打赏';
} else {
alert('对方未绑定 Solana 钱包');
aTip.innerHTML = '打赏';
}
} catch (err) {
alert('打赏失败：' + err.message);
aTip.innerHTML = '打赏';
}
} else {
aTip.innerHTML = '加载失败';
}
});
div.insertAdjacentHTML('beforeend', ' ');
div.insertAdjacentElement('beforeend', aTip);
}
});
}
})();
