Magic link auth via Gmail SMTP + password fallback

dashboard/app.py

@@ -3,12 +3,15 @@ from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse, RedirectResponse
 from sqlalchemy.orm import Session
 from pydantic import BaseModel
-from datetime import datetime, timezone
+from datetime import datetime, timezone, timedelta
 from typing import Optional
 import hashlib
 import json
 import os
 import secrets
+import smtplib
+from email.mime.text import MIMEText
+from email.mime.multipart import MIMEMultipart
 
 from database import get_db, init_db
 from models import User, AgentCatalog, AgentInstance, Run, LLMProvider, Bridge
@@ -19,6 +22,15 @@ app = FastAPI(title="Agent Command Center", version="2026.04.12.01")
 
 SESSION_SECRET = os.environ.get("SESSION_SECRET", secrets.token_hex(32))
 _sessions: dict[str, dict] = {}  # token -> {user_id, username, role}
+_magic_links: dict[str, dict] = {}  # token -> {user_id, email, expires}
+
+# SMTP Config
+SMTP_HOST = os.environ.get("SMTP_HOST", "smtp.gmail.com")
+SMTP_PORT = int(os.environ.get("SMTP_PORT", "587"))
+SMTP_USER = os.environ.get("SMTP_USER", "eric.jungbauer@gmail.com")
+SMTP_PASS = os.environ.get("SMTP_PASS", "jozj oags ifqy auey")
+SMTP_FROM = os.environ.get("SMTP_FROM", "eric.jungbauer@gmail.com")
+APP_URL = os.environ.get("APP_URL", "https://agents.jfamily.io")
 
 
 def hash_password(password: str) -> str:
@@ -64,6 +76,9 @@ class LoginRequest(BaseModel):
     username: str  # accepts username or email
     password: str
 
+class MagicLinkRequest(BaseModel):
+    email: str
+
 class InstanceCreate(BaseModel):
     catalog_id: str
     name: Optional[str] = None
@@ -134,6 +149,78 @@ def logout(response: Response, session: Optional[str] = Cookie(None)):
     return {"status": "ok"}
 
 
+def send_magic_email(email: str, token: str):
+    """Send a magic link email via SMTP."""
+    link = f"{APP_URL}/auth/verify?token={token}"
+    html = f"""
+    <div style="font-family:-apple-system,sans-serif;max-width:480px;margin:0 auto;padding:2rem">
+        <h2 style="color:#6c5ce7">Agent Command Center</h2>
+        <p>Click the button below to sign in:</p>
+        <a href="{link}" style="display:inline-block;background:#6c5ce7;color:#fff;padding:12px 32px;
+           border-radius:6px;text-decoration:none;font-weight:500;margin:1rem 0">Sign In</a>
+        <p style="color:#888;font-size:13px">This link expires in 15 minutes. If you didn't request this, ignore this email.</p>
+        <p style="color:#888;font-size:12px">{APP_URL}</p>
+    </div>
+    """
+    msg = MIMEMultipart("alternative")
+    msg["Subject"] = "Sign in to Agent Command Center"
+    msg["From"] = SMTP_FROM
+    msg["To"] = email
+    msg.attach(MIMEText(f"Sign in: {link}\n\nExpires in 15 minutes.", "plain"))
+    msg.attach(MIMEText(html, "html"))
+
+    with smtplib.SMTP(SMTP_HOST, SMTP_PORT) as server:
+        server.starttls()
+        server.login(SMTP_USER, SMTP_PASS)
+        server.send_message(msg)
+
+
+@app.post("/api/auth/magic-link")
+def request_magic_link(data: MagicLinkRequest, db: Session = Depends(get_db)):
+    """Send a magic link to the user's email."""
+    user = db.query(User).filter(User.email == data.email).first()
+    if not user:
+        # Don't reveal whether email exists — return success either way
+        return {"status": "ok", "message": "If that email is registered, a sign-in link has been sent."}
+
+    # Generate token
+    token = secrets.token_urlsafe(32)
+    _magic_links[token] = {
+        "user_id": user.id,
+        "email": user.email,
+        "expires": datetime.now(timezone.utc) + timedelta(minutes=15),
+    }
+
+    # Send email
+    try:
+        send_magic_email(user.email, token)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to send email: {e}")
+
+    return {"status": "ok", "message": "If that email is registered, a sign-in link has been sent."}
+
+
+@app.get("/auth/verify")
+def verify_magic_link(token: str, response: Response, db: Session = Depends(get_db)):
+    """Verify a magic link token and log the user in."""
+    link_data = _magic_links.pop(token, None)
+    if not link_data:
+        return RedirectResponse("/login?error=invalid", status_code=302)
+
+    if datetime.now(timezone.utc) > link_data["expires"]:
+        return RedirectResponse("/login?error=expired", status_code=302)
+
+    user = db.query(User).filter(User.id == link_data["user_id"]).first()
+    if not user:
+        return RedirectResponse("/login?error=invalid", status_code=302)
+
+    # Create session
+    session_token = create_session(user)
+    resp = RedirectResponse("/", status_code=302)
+    resp.set_cookie("session", session_token, httponly=True, samesite="lax", max_age=86400 * 7)
+    return resp
+
+
 @app.get("/api/me")
 def me(user: dict = Depends(require_auth), db: Session = Depends(get_db)):
     u = db.query(User).filter(User.id == user["user_id"]).first()

dashboard/static/login.html

@@ -5,94 +5,30 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>Login — Agent Command Center</title>
 <style>
-  :root {
+  :root {--bg:#0f1117;--surface:#1a1d27;--border:#2e3345;--text:#e4e6ed;--text-dim:#8b8fa3;--accent:#6c5ce7;--accent-hover:#7c6ef0;--red:#e17055;--green:#00b894}
-    --bg: #0f1117;
+  *{margin:0;padding:0;box-sizing:border-box}
-    --surface: #1a1d27;
+  body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;align-items:center;justify-content:center}
-    --border: #2e3345;
+  .login-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:2.5rem;width:100%;max-width:400px}
-    --text: #e4e6ed;
+  .login-card h1{font-size:1.3rem;font-weight:600;margin-bottom:.4rem;text-align:center}
-    --text-dim: #8b8fa3;
+  .login-card .subtitle{color:var(--text-dim);font-size:.85rem;text-align:center;margin-bottom:2rem}
-    --accent: #6c5ce7;
+  .field{margin-bottom:1.25rem}
-    --accent-hover: #7c6ef0;
+  .field label{display:block;font-size:.8rem;font-weight:500;color:var(--text-dim);margin-bottom:.4rem;text-transform:uppercase;letter-spacing:.05em}
-    --red: #e17055;
+  .field input{width:100%;padding:.65rem .85rem;background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:.95rem;outline:none;transition:border-color .2s}
-  }
+  .field input:focus{border-color:var(--accent)}
-  * { margin: 0; padding: 0; box-sizing: border-box; }
+  .btn{width:100%;padding:.7rem;background:var(--accent);color:#fff;border:none;border-radius:6px;font-size:.95rem;font-weight:500;cursor:pointer;transition:background .2s;margin-top:.5rem}
-  body {
+  .btn:hover{background:var(--accent-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}
-    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  .btn-ghost{background:none;color:var(--text-dim);border:1px solid var(--border)}.btn-ghost:hover{border-color:var(--text-dim);color:var(--text)}
-    background: var(--bg);
+  .msg{font-size:.85rem;text-align:center;margin-top:1rem;display:none}
-    color: var(--text);
+  .msg.error{color:var(--red)}.msg.success{color:var(--green)}
-    min-height: 100vh;
+  .divider{display:flex;align-items:center;gap:1rem;margin:1.5rem 0;color:var(--text-dim);font-size:.8rem}
-    display: flex;
+  .divider::before,.divider::after{content:'';flex:1;border-top:1px solid var(--border)}
-    align-items: center;
+  .tab-row{display:flex;margin-bottom:1.5rem;border-bottom:1px solid var(--border)}
-    justify-content: center;
+  .tab{flex:1;text-align:center;padding:.6rem;font-size:.85rem;cursor:pointer;color:var(--text-dim);border-bottom:2px solid transparent;transition:all .2s}
-  }
+  .tab:hover{color:var(--text)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
-  .login-card {
+  .panel{display:none}.panel.active{display:block}
-    background: var(--surface);
+  .sent-state{text-align:center;padding:1rem 0}
-    border: 1px solid var(--border);
+  .sent-state .icon{font-size:2rem;margin-bottom:.75rem}
-    border-radius: 12px;
+  .sent-state p{color:var(--text-dim);font-size:.85rem;line-height:1.5}
-    padding: 2.5rem;
-    width: 100%;
-    max-width: 380px;
-  }
-  .login-card h1 {
-    font-size: 1.3rem;
-    font-weight: 600;
-    margin-bottom: 0.4rem;
-    text-align: center;
-  }
-  .login-card .subtitle {
-    color: var(--text-dim);
-    font-size: 0.85rem;
-    text-align: center;
-    margin-bottom: 2rem;
-  }
-  .field {
-    margin-bottom: 1.25rem;
-  }
-  .field label {
-    display: block;
-    font-size: 0.8rem;
-    font-weight: 500;
-    color: var(--text-dim);
-    margin-bottom: 0.4rem;
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-  }
-  .field input {
-    width: 100%;
-    padding: 0.65rem 0.85rem;
-    background: var(--bg);
-    border: 1px solid var(--border);
-    border-radius: 6px;
-    color: var(--text);
-    font-size: 0.95rem;
-    outline: none;
-    transition: border-color 0.2s;
-  }
-  .field input:focus {
-    border-color: var(--accent);
-  }
-  .btn {
-    width: 100%;
-    padding: 0.7rem;
-    background: var(--accent);
-    color: #fff;
-    border: none;
-    border-radius: 6px;
-    font-size: 0.95rem;
-    font-weight: 500;
-    cursor: pointer;
-    transition: background 0.2s;
-    margin-top: 0.5rem;
-  }
-  .btn:hover { background: var(--accent-hover); }
-  .btn:disabled { opacity: 0.6; cursor: not-allowed; }
-  .error {
-    color: var(--red);
-    font-size: 0.85rem;
-    text-align: center;
-    margin-top: 1rem;
-    display: none;
-  }
 </style>
 </head>
 <body>
@@ -100,28 +36,105 @@
 <div class="login-card">
   <h1>Agent Command Center</h1>
   <p class="subtitle">Sign in to continue</p>
+
+  <div class="tab-row">
+    <div class="tab active" onclick="switchTab('magic')">Magic Link</div>
+    <div class="tab" onclick="switchTab('password')">Password</div>
+  </div>
+
+  <!-- Magic Link -->
+  <div class="panel active" id="panel-magic">
+    <div id="magic-form-state">
+      <div class="field">
+        <label>Email Address</label>
+        <input type="email" id="magic-email" autocomplete="email" autofocus placeholder="you@example.com" required>
+      </div>
+      <button class="btn" id="magic-btn" onclick="sendMagicLink()">Send Sign-In Link</button>
+      <p class="msg" id="magic-msg"></p>
+    </div>
+    <div id="magic-sent-state" style="display:none">
+      <div class="sent-state">
+        <div class="icon">&#9993;</div>
+        <h3 style="margin-bottom:.5rem">Check your email</h3>
+        <p>We sent a sign-in link to <strong id="sent-email"></strong>.<br>Click the link in the email to sign in.<br>The link expires in 15 minutes.</p>
+        <button class="btn btn-ghost" style="margin-top:1.5rem" onclick="resetMagic()">Send another</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- Password -->
+  <div class="panel" id="panel-password">
     <form id="login-form">
       <div class="field">
-      <label>Username</label>
+        <label>Username or Email</label>
-      <input type="text" id="username" autocomplete="username" autofocus required>
+        <input type="text" id="username" autocomplete="username" required>
       </div>
       <div class="field">
         <label>Password</label>
         <input type="password" id="password" autocomplete="current-password" required>
       </div>
       <button type="submit" class="btn" id="submit-btn">Sign In</button>
-    <p class="error" id="error-msg"></p>
+      <p class="msg error" id="error-msg"></p>
     </form>
   </div>
+</div>
 
 <script>
+function switchTab(name){
+  document.querySelectorAll('.tab').forEach(t=>t.classList.remove('active'));
+  document.querySelectorAll('.panel').forEach(p=>p.classList.remove('active'));
+  document.querySelector(`.tab[onclick*="${name}"]`).classList.add('active');
+  document.getElementById('panel-'+name).classList.add('active');
+}
+
+// Check URL params for errors from magic link
+const params = new URLSearchParams(window.location.search);
+if(params.get('error')){
+  const msg = document.getElementById('magic-msg');
+  msg.textContent = params.get('error') === 'expired' ? 'Link expired. Please request a new one.' : 'Invalid link. Please try again.';
+  msg.className = 'msg error';
+  msg.style.display = 'block';
+}
+
+async function sendMagicLink(){
+  const btn = document.getElementById('magic-btn');
+  const msg = document.getElementById('magic-msg');
+  const email = document.getElementById('magic-email').value.trim();
+  if(!email){msg.textContent='Enter your email';msg.className='msg error';msg.style.display='block';return}
+  btn.disabled=true;msg.style.display='none';
+
+  try{
+    const res = await fetch('/api/auth/magic-link',{
+      method:'POST',
+      headers:{'Content-Type':'application/json'},
+      body:JSON.stringify({email}),
+    });
+    if(res.ok){
+      document.getElementById('magic-form-state').style.display='none';
+      document.getElementById('magic-sent-state').style.display='block';
+      document.getElementById('sent-email').textContent=email;
+    } else {
+      const data = await res.json();
+      msg.textContent = data.detail || 'Failed to send link';
+      msg.className='msg error';msg.style.display='block';
+    }
+  }catch(e){
+    msg.textContent='Connection error';msg.className='msg error';msg.style.display='block';
+  }
+  btn.disabled=false;
+}
+
+function resetMagic(){
+  document.getElementById('magic-form-state').style.display='block';
+  document.getElementById('magic-sent-state').style.display='none';
+  document.getElementById('magic-email').value='';
+}
+
 document.getElementById('login-form').addEventListener('submit', async(e)=>{
   e.preventDefault();
   const btn=document.getElementById('submit-btn');
   const err=document.getElementById('error-msg');
-  btn.disabled = true;
+  btn.disabled=true;err.style.display='none';
-  err.style.display = 'none';
-
   try{
     const res=await fetch('/api/login',{
       method:'POST',
@@ -131,18 +144,14 @@ document.getElementById('login-form').addEventListener('submit', async (e) => {
         password:document.getElementById('password').value,
       }),
     });
-    if (res.ok) {
+    if(res.ok){window.location.href='/'}
-      window.location.href = '/';
+    else{err.textContent='Invalid username or password';err.style.display='block'}
-    } else {
+  }catch(ex){err.textContent='Connection error';err.style.display='block'}
-      err.textContent = 'Invalid username or password';
-      err.style.display = 'block';
-    }
-  } catch (ex) {
-    err.textContent = 'Connection error';
-    err.style.display = 'block';
-  }
   btn.disabled=false;
 });
+
+// Enter key on magic email field
+document.getElementById('magic-email').addEventListener('keydown',e=>{if(e.key==='Enter'){e.preventDefault();sendMagicLink()}});
 </script>
 </body>
 </html>