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new-api/examples/oauth/oauth-demo.html
2025-09-16 17:10:01 +08:00

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<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>OAuth2/OIDC 授权码 + PKCE 前端演示</title>
<style>
:root { --bg:#0b0c10; --panel:#111317; --muted:#aab2bf; --accent:#3b82f6; --ok:#16a34a; --warn:#f59e0b; --err:#ef4444; --border:#1f2430; }
body { margin:0; font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial; background: var(--bg); color:#e5e7eb; }
.wrap { max-width: 980px; margin: 32px auto; padding: 0 16px; }
h1 { font-size: 22px; margin:0 0 16px; }
.card { background: var(--panel); border:1px solid var(--border); border-radius: 10px; padding: 16px; margin: 12px 0; }
.row { display:flex; gap:12px; flex-wrap:wrap; }
.col { flex: 1 1 280px; display:flex; flex-direction:column; }
label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
input, textarea, select { background:#0f1115; color:#e5e7eb; border:1px solid var(--border); padding:10px 12px; border-radius:8px; outline:none; }
textarea { min-height: 100px; resize: vertical; }
.btns { display:flex; gap:8px; flex-wrap:wrap; margin-top: 8px; }
button { background:#1a1f2b; color:#e5e7eb; border:1px solid var(--border); padding:8px 12px; border-radius:8px; cursor:pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color:white; }
button.ok { background: var(--ok); border-color: var(--ok); color:white; }
button.warn { background: var(--warn); border-color: var(--warn); color:black; }
button.ghost { background: transparent; }
.muted { color: var(--muted); font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
.grid2 { display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 880px){ .grid2 { grid-template-columns: 1fr; } }
.pill { padding: 3px 8px; border-radius:999px; font-size: 12px; border:1px solid var(--border); background:#0f1115; }
.ok { color: #10b981; }
.err { color: #ef4444; }
.sep { height:1px; background: var(--border); margin: 12px 0; }
</style>
</head>
<body>
<div class="wrap">
<h1>OAuth2/OIDC 授权码 + PKCE 前端演示</h1>
<div class="card">
<div class="row">
<div class="col">
<label>Issuer可选用于自动发现 /.well-known/openid-configuration</label>
<input id="issuer" placeholder="https://your-domain" />
<div class="btns"><button class="" id="btnDiscover">自动发现端点</button></div>
<div class="muted">提示:若未配置 Issuer可直接填写下方端点。</div>
</div>
</div>
<div class="row">
<div class="col"><label>Authorization Endpoint</label><input id="authorization_endpoint" placeholder="https://domain/api/oauth/authorize" /></div>
<div class="col"><label>Token Endpoint</label><input id="token_endpoint" placeholder="https://domain/api/oauth/token" /></div>
</div>
<div class="row">
<div class="col"><label>UserInfo Endpoint可选</label><input id="userinfo_endpoint" placeholder="https://domain/api/oauth/userinfo" /></div>
<div class="col"><label>Client ID</label><input id="client_id" placeholder="your-public-client-id" /></div>
</div>
<div class="row">
<div class="col"><label>Redirect URI当前页地址或你的回调</label><input id="redirect_uri" /></div>
<div class="col"><label>Scope</label><input id="scope" value="openid profile email" /></div>
</div>
<div class="row">
<div class="col"><label>State</label><input id="state" /></div>
<div class="col"><label>Nonce</label><input id="nonce" /></div>
</div>
<div class="row">
<div class="col"><label>Code Verifier自动生成不会上送</label><input id="code_verifier" class="mono" readonly /></div>
<div class="col"><label>Code ChallengeS256</label><input id="code_challenge" class="mono" readonly /></div>
</div>
<div class="btns">
<button id="btnGenPkce">生成 PKCE</button>
<button id="btnRandomState">随机 State</button>
<button id="btnRandomNonce">随机 Nonce</button>
<button id="btnMakeAuthURL">生成授权链接</button>
<button id="btnAuthorize" class="primary">跳转授权</button>
</div>
<div class="row" style="margin-top:8px;">
<div class="col">
<label>授权链接(只生成不跳转)</label>
<textarea id="authorize_url" class="mono" placeholder="(空)"></textarea>
<div class="btns"><button id="btnCopyAuthURL">复制链接</button></div>
</div>
</div>
<div class="sep"></div>
<div class="muted">说明:
<ul>
<li>本页为纯前端演示,适用于公开客户端(不需要 client_secret</li>
<li>如跨域调用 Token/UserInfo需要服务端正确设置 CORS建议将此 demo 部署到同源域名下。</li>
</ul>
</div>
<div class="sep"></div>
<div class="row">
<div class="col">
<label>粘贴 OIDC Discovery JSON/.well-known/openid-configuration</label>
<textarea id="conf_json" class="mono" placeholder='{"issuer":"https://...","authorization_endpoint":"...","token_endpoint":"...","userinfo_endpoint":"..."}'></textarea>
<div class="btns">
<button id="btnParseConf">解析并填充端点</button>
<button id="btnGenConf">用当前端点生成 JSON</button>
</div>
<div class="muted">可将服务端返回的 OIDC Discovery JSON 粘贴到此处,点击“解析并填充端点”。</div>
</div>
</div>
</div>
<div class="card">
<div class="row">
<div class="col">
<label>授权结果</label>
<div id="authResult" class="muted">等待授权...</div>
</div>
</div>
<div class="grid2" style="margin-top:12px;">
<div>
<label>Access Token</label>
<textarea id="access_token" class="mono" placeholder="(空)"></textarea>
<div class="btns">
<button id="btnCopyAT">复制</button>
<button id="btnCallUserInfo" class="ok">调用 UserInfo</button>
</div>
<div id="userinfoOut" class="muted" style="margin-top:6px;"></div>
</div>
<div>
<label>ID TokenJWT</label>
<textarea id="id_token" class="mono" placeholder="(空)"></textarea>
<div class="btns">
<button id="btnDecodeJWT">解码显示 Claims</button>
</div>
<pre id="jwtClaims" class="mono" style="white-space:pre-wrap; word-break:break-all; margin-top:6px;"></pre>
</div>
</div>
<div class="grid2" style="margin-top:12px;">
<div>
<label>Refresh Token</label>
<textarea id="refresh_token" class="mono" placeholder="(空)"></textarea>
<div class="btns">
<button id="btnRefreshToken">使用 Refresh Token 刷新</button>
</div>
</div>
<div>
<label>原始 Token 响应</label>
<textarea id="token_raw" class="mono" placeholder="(空)"></textarea>
</div>
</div>
</div>
</div>
<script>
const $ = (id) => document.getElementById(id);
const toB64Url = (buf) => btoa(String.fromCharCode(...new Uint8Array(buf))).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
async function sha256B64Url(str){
const data = new TextEncoder().encode(str);
const digest = await crypto.subtle.digest('SHA-256', data);
return toB64Url(digest);
}
function randStr(len=64){
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~';
const arr = new Uint8Array(len); crypto.getRandomValues(arr);
return Array.from(arr, v => chars[v % chars.length]).join('');
}
function setAuthInfo(msg, ok=true){
const el = $('authResult');
el.textContent = msg;
el.className = ok ? 'ok' : 'err';
}
function qs(name){ const u=new URL(location.href); return u.searchParams.get(name); }
function persist(name, val){ sessionStorage.setItem('demo_'+name, val); }
function load(name){ return sessionStorage.getItem('demo_'+name) || ''; }
// init defaults
(function init(){
$('redirect_uri').value = window.location.origin + window.location.pathname;
// try load from discovery if issuer saved previously
const iss = load('issuer'); if(iss) $('issuer').value = iss;
const cid = load('client_id'); if(cid) $('client_id').value = cid;
const scp = load('scope'); if(scp) $('scope').value = scp;
})();
$('btnDiscover').onclick = async () => {
const iss = $('issuer').value.trim(); if(!iss){ alert('请填写 Issuer'); return; }
try{
persist('issuer', iss);
const res = await fetch(iss.replace(/\/$/,'') + '/api/.well-known/openid-configuration');
const d = await res.json();
$('authorization_endpoint').value = d.authorization_endpoint || '';
$('token_endpoint').value = d.token_endpoint || '';
$('userinfo_endpoint').value = d.userinfo_endpoint || '';
if (d.issuer) { $('issuer').value = d.issuer; persist('issuer', d.issuer); }
$('conf_json').value = JSON.stringify(d, null, 2);
setAuthInfo('已从发现文档加载端点', true);
}catch(e){ setAuthInfo('自动发现失败:'+e, false); }
};
$('btnGenPkce').onclick = async () => {
const v = randStr(64); const c = await sha256B64Url(v);
$('code_verifier').value = v; $('code_challenge').value = c;
persist('code_verifier', v); persist('code_challenge', c);
setAuthInfo('已生成 PKCE 参数', true);
};
$('btnRandomState').onclick = () => { $('state').value = randStr(16); persist('state', $('state').value); };
$('btnRandomNonce').onclick = () => { $('nonce').value = randStr(16); persist('nonce', $('nonce').value); };
function buildAuthorizeURLFromFields() {
const auth = $('authorization_endpoint').value.trim();
const token = $('token_endpoint').value.trim(); // just validate
const cid = $('client_id').value.trim();
const red = $('redirect_uri').value.trim();
const scp = $('scope').value.trim() || 'openid profile email';
const st = $('state').value.trim() || randStr(16);
const no = $('nonce').value.trim() || randStr(16);
const cc = $('code_challenge').value.trim();
const cv = $('code_verifier').value.trim();
if(!auth || !token || !cid || !red){ throw new Error('请先完善端点/ClientID/RedirectURI'); }
if(!cc || !cv){ throw new Error('请先生成 PKCE'); }
persist('authorization_endpoint', auth); persist('token_endpoint', token);
persist('client_id', cid); persist('redirect_uri', red); persist('scope', scp);
persist('state', st); persist('nonce', no); persist('code_verifier', cv);
const u = new URL(auth);
u.searchParams.set('response_type', 'code');
u.searchParams.set('client_id', cid);
u.searchParams.set('redirect_uri', red);
u.searchParams.set('scope', scp);
u.searchParams.set('state', st);
u.searchParams.set('nonce', no);
u.searchParams.set('code_challenge', cc);
u.searchParams.set('code_challenge_method', 'S256');
return u.toString();
}
$('btnMakeAuthURL').onclick = () => {
try {
const url = buildAuthorizeURLFromFields();
$('authorize_url').value = url;
setAuthInfo('已生成授权链接', true);
} catch(e){ setAuthInfo(e.message, false); }
};
$('btnAuthorize').onclick = () => {
try { const url = buildAuthorizeURLFromFields(); location.href = url; }
catch(e){ setAuthInfo(e.message, false); }
};
$('btnCopyAuthURL').onclick = async () => { try{ await navigator.clipboard.writeText($('authorize_url').value); }catch{} };
// Parse OIDC discovery JSON pasted by user
$('btnParseConf').onclick = () => {
const txt = $('conf_json').value.trim(); if(!txt){ alert('请先粘贴 JSON'); return; }
try{
const d = JSON.parse(txt);
if (d.issuer) { $('issuer').value = d.issuer; persist('issuer', d.issuer); }
if (d.authorization_endpoint) $('authorization_endpoint').value = d.authorization_endpoint;
if (d.token_endpoint) $('token_endpoint').value = d.token_endpoint;
if (d.userinfo_endpoint) $('userinfo_endpoint').value = d.userinfo_endpoint;
setAuthInfo('已解析配置并填充端点', true);
}catch(e){ setAuthInfo('解析失败:'+e, false); }
};
// Generate a minimal discovery JSON from current fields
$('btnGenConf').onclick = () => {
const d = {
issuer: $('issuer').value.trim() || undefined,
authorization_endpoint: $('authorization_endpoint').value.trim() || undefined,
token_endpoint: $('token_endpoint').value.trim() || undefined,
userinfo_endpoint: $('userinfo_endpoint').value.trim() || undefined,
};
$('conf_json').value = JSON.stringify(d, null, 2);
};
async function postForm(url, data){
const body = Object.entries(data).map(([k,v])=> `${encodeURIComponent(k)}=${encodeURIComponent(v)}`).join('&');
const res = await fetch(url, { method:'POST', headers:{ 'Content-Type':'application/x-www-form-urlencoded' }, body });
if(!res.ok){ const t = await res.text(); throw new Error(`HTTP ${res.status} ${t}`); }
return res.json();
}
async function handleCallback(){
const code = qs('code'); const err = qs('error');
const state = qs('state');
if(err){ setAuthInfo('授权失败:'+err, false); return; }
if(!code){ setAuthInfo('等待授权...', true); return; }
// state check
if(state && load('state') && state !== load('state')){ setAuthInfo('state 不匹配,已拒绝', false); return; }
try{
const tokenEp = load('token_endpoint');
const data = await postForm(tokenEp, {
grant_type:'authorization_code',
code,
client_id: load('client_id'),
redirect_uri: load('redirect_uri'),
code_verifier: load('code_verifier')
});
$('access_token').value = data.access_token || '';
$('id_token').value = data.id_token || '';
$('refresh_token').value = data.refresh_token || '';
$('token_raw').value = JSON.stringify(data, null, 2);
setAuthInfo('授权成功,已获取令牌', true);
}catch(e){ setAuthInfo('交换令牌失败:'+e.message, false); }
}
handleCallback();
$('btnCopyAT').onclick = async () => { try{ await navigator.clipboard.writeText($('access_token').value); }catch{} };
$('btnDecodeJWT').onclick = () => {
const t = $('id_token').value.trim(); if(!t){ $('jwtClaims').textContent='(空)'; return; }
const parts = t.split('.'); if(parts.length<2){ $('jwtClaims').textContent='格式错误'; return; }
try{ const json = JSON.parse(atob(parts[1].replace(/-/g,'+').replace(/_/g,'/'))); $('jwtClaims').textContent = JSON.stringify(json, null, 2);}catch(e){ $('jwtClaims').textContent='解码失败:'+e; }
};
$('btnCallUserInfo').onclick = async () => {
const at = $('access_token').value.trim(); const ep = $('userinfo_endpoint').value.trim(); if(!at||!ep){ alert('请填写UserInfo端点并获取AccessToken'); return; }
try{
const res = await fetch(ep, { headers:{ Authorization: 'Bearer '+at } });
const data = await res.json(); $('userinfoOut').textContent = JSON.stringify(data, null, 2);
}catch(e){ $('userinfoOut').textContent = '调用失败:'+e; }
};
$('btnRefreshToken').onclick = async () => {
const rt = $('refresh_token').value.trim(); if(!rt){ alert('没有刷新令牌'); return; }
try{
const tokenEp = load('token_endpoint');
const data = await postForm(tokenEp, {
grant_type:'refresh_token',
refresh_token: rt,
client_id: load('client_id')
});
$('access_token').value = data.access_token || '';
$('id_token').value = data.id_token || '';
$('refresh_token').value = data.refresh_token || '';
$('token_raw').value = JSON.stringify(data, null, 2);
setAuthInfo('刷新成功', true);
}catch(e){ setAuthInfo('刷新失败:'+e.message, false); }
};
</script>
</body>
</html>