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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Open.Mail Fixed Edition: cache-buster removed, Cache-Control header cleaned,
all robustness features preserved (pad===3 check, prefix stripping, CRC handling,
contact cache, credential fallback, ACNET bridge). Compatible with ACNET FIX43+.
Version: 2026.09.06-group-address-v2 -->
<title>Open.Mail</title>
<link href="https://fonts.googleapis.com/css2?family=Fira+Code:wght@300;400;500;600&display=swap" rel="stylesheet">
<style>
:root{
--bg:#020804;--bg2:#050f07;--bg3:#081208;--bg4:#0a160a;
--g0:#00ff66;--g1:#00cc44;--g2:#009933;--g3:#005522;--g4:#002a11;
--amber:#ffaa00;--red:#ff3333;--blue:#33aaff;
--font:'Fira Code','Courier New',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--g1);height:100vh;overflow:hidden;font-size:13px;line-height:1.5}
::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--g4)}
a{color:var(--amber);text-decoration:none}a:hover{color:var(--g0)}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.cur{animation:blink 1s infinite;color:var(--g0)}
/* -- INPUTS -- */
input,textarea{font-family:var(--font);font-size:13px;background:transparent;color:var(--g1);outline:none;width:100%}
input[type=text],input[type=password]{border:none;border-bottom:1px solid var(--g4);padding:8px 0;transition:border-color .2s}
input[type=text]:focus,input[type=password]:focus{border-bottom-color:var(--g0);color:var(--g0)}
input::placeholder,textarea::placeholder{color:var(--g4)}
textarea{border:1px solid var(--g3);padding:10px;resize:vertical;line-height:1.7;border-radius:2px}
textarea:focus{border-color:var(--g1);outline:none}
/* -- BUTTONS -- */
.btn{font-family:var(--font);font-size:11px;background:var(--g4);border:1px solid var(--g2);color:var(--g0);
padding:9px 20px;cursor:pointer;text-transform:uppercase;letter-spacing:1px;
transition:all .15s;border-radius:0;width:100%}
.btn:hover{background:var(--g3);border-color:var(--g0)}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.35;cursor:default;pointer-events:none}
.btn-secondary{border-color:var(--blue);color:var(--blue);background:rgba(51,170,255,.08)}
.btn-secondary:hover{background:rgba(51,170,255,.15);border-color:var(--blue)}
.btn-danger{border-color:var(--red);color:var(--red);background:rgba(255,51,51,.08)}
.btn-danger:hover{background:rgba(255,51,51,.15);border-color:var(--red)}
.btn-ghost{border-color:var(--g3);color:var(--g3);background:transparent}
.btn-ghost:hover{border-color:var(--g2);color:var(--g2)}
/* -- APP SHELL -- */
#app{height:100vh;display:flex;flex-direction:column}
/* -- LOGIN -- */
#login-view{display:flex;align-items:center;justify-content:center;height:100%;background:var(--bg);flex-direction:column;gap:0;animation:fadeIn .4s ease}
.login-box{width:100%;max-width:420px;border:1px solid var(--g4);background:var(--bg2);margin:20px}
.login-box-head{padding:22px 26px;border-bottom:1px solid var(--g4);background:var(--bg3)}
.login-box-head h1{font-size:20px;font-weight:500;color:var(--g0);letter-spacing:3px;display:flex;align-items:center;gap:10px}
.login-box-head .sub{color:var(--g3);font-size:10px;margin-top:5px}
.privacy-badge{font-size:10px;padding:2px 8px;border:1px solid rgba(0,255,102,.3);color:var(--g2);letter-spacing:.5px}
.login-box-body{padding:24px 26px;display:flex;flex-direction:column;gap:0}
.input-group{margin-bottom:20px}
.input-group label{display:block;margin-bottom:6px;font-size:10px;font-weight:500;color:var(--g3);text-transform:uppercase;letter-spacing:1px}
.login-box-body .btn{margin-top:4px}
.note{font-size:11px;color:var(--g4);margin-top:16px;text-align:center;line-height:1.7}
.note a{color:var(--g2)}.note a:hover{color:var(--g0)}
.login-box-foot{padding:10px 26px;border-top:1px solid var(--g4);color:var(--g4);font-size:10px;text-align:center;line-height:1.7}
/* -- LOGIN WARNING (collapsible) -- */
.warn-box{width:100%;max-width:420px;border:1px solid rgba(255,170,0,.4);background:rgba(255,170,0,.05);
margin:0 20px 12px 20px}
.warn-head{padding:9px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;
cursor:pointer;user-select:none;background:rgba(255,170,0,.08);transition:background .15s;
font-size:11px;font-weight:600;color:var(--amber);letter-spacing:1px;text-transform:uppercase}
.warn-head:hover{background:rgba(255,170,0,.13)}
.warn-head .warn-title{display:flex;align-items:center;gap:8px}
.warn-head .warn-arr{font-size:10px;color:var(--amber);transition:transform .2s;display:inline-block}
.warn-box.open .warn-head .warn-arr{transform:rotate(180deg)}
.warn-body{max-height:0;overflow:hidden;transition:max-height .25s ease;border-top:1px solid transparent}
.warn-box.open .warn-body{max-height:320px;border-top-color:rgba(255,170,0,.25)}
.warn-list{padding:10px 14px 12px 14px;margin:0;list-style:none;font-size:11.5px;line-height:1.55;color:#e8d9a8}
.warn-list li{padding:2px 0 2px 14px;position:relative}
.warn-list li::before{content:'\25B8';color:var(--amber);font-size:9px;position:absolute;left:0;top:5px}
.warn-list strong{color:var(--amber);font-weight:600}
/* -- MAIL VIEW -- */
#mail-view{display:none;flex-direction:row;flex:1;min-height:0}
/* -- SIDEBAR -- */
.sidebar{width:210px;background:var(--bg2);border-right:1px solid var(--g4);display:flex;flex-direction:column;flex-shrink:0}
.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--g4)}
.sidebar-header h2{font-size:14px;font-weight:500;color:var(--g0);letter-spacing:2px}
.addr{font-size:11px;color:var(--g2);margin-top:6px;word-break:break-all;line-height:1.5}
.e2e-pill{display:inline-flex;align-items:center;gap:4px;padding:2px 7px;border:1px solid rgba(0,255,102,.3);
font-size:9px;font-weight:600;color:var(--g2);text-transform:uppercase;letter-spacing:.5px;margin-top:6px}
.addr-btn{margin-top:8px;font-size:10px;padding:5px 10px;border:1px solid var(--g4);color:var(--g3);
background:transparent;cursor:pointer;width:100%;font-family:var(--font);text-align:left;transition:all .15s}
.addr-btn:hover{border-color:var(--g2);color:var(--g1)}
.nav-btn{display:flex;align-items:center;gap:10px;width:100%;padding:10px 20px;background:none;border:none;
border-left:2px solid transparent;color:var(--g3);text-align:left;font-size:11px;cursor:pointer;
transition:all .1s;font-family:var(--font);text-transform:uppercase;letter-spacing:.5px;font-weight:500}
.nav-btn:hover{background:var(--bg3);color:var(--g1);border-left-color:var(--g3)}
.nav-btn.active{background:var(--bg3);color:var(--g0);border-left-color:var(--g0)}
.sidebar-footer{margin-top:auto;padding:12px;border-top:1px solid var(--g4);display:flex;flex-direction:column;gap:6px}
.sidebar-footer .btn{font-size:10px;padding:6px 10px}
/* -- MAIN -- */
.main{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}
.topbar{height:44px;background:var(--bg3);border-bottom:1px solid var(--g4);display:flex;align-items:center;
justify-content:space-between;padding:0 20px;flex-shrink:0}
.topbar h3{font-size:12px;color:var(--g2);text-transform:uppercase;letter-spacing:1.5px;font-weight:500}
.actions{display:flex;gap:6px}
.actions button{padding:5px 12px;border:1px solid var(--g4);background:transparent;border-radius:0;
cursor:pointer;font-size:10px;font-weight:500;color:var(--g3);transition:all .15s;
font-family:var(--font);text-transform:uppercase;letter-spacing:.5px}
.actions button:hover{background:var(--g4);border-color:var(--g2);color:var(--g1)}
.content{flex:1;overflow-y:auto;padding:16px}
/* -- EMAIL LIST -- */
.email-list{background:var(--bg2);border:1px solid var(--g4);overflow:hidden}
.email-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--g4);
cursor:pointer;transition:background .1s;gap:12px}
.email-item:last-child{border-bottom:none}
.email-item:hover{background:var(--bg3)}
.email-item.unread{border-left:2px solid var(--g1)}
.email-item.read{border-left:2px solid transparent}
.email-item.read .email-sender,.email-item.read .email-subject{color:var(--g3)}
.email-sender{width:160px;font-weight:500;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--g0);flex-shrink:0}
.email-subject{flex:1;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--g1)}
.email-snippet{color:var(--g3);font-size:11px;width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:0}
.email-date{width:90px;text-align:right;font-size:10px;color:var(--g4);white-space:nowrap;flex-shrink:0}
.expires{color:var(--amber);font-size:10px;font-weight:500;margin-left:4px}
.expires.danger{color:var(--red)}
.email-actions{display:flex;gap:4px;flex-shrink:0}
.email-actions button{background:none;border:1px solid transparent;color:var(--g4);cursor:pointer;
font-size:10px;padding:3px 7px;font-family:var(--font);transition:all .15s}
.email-actions button:hover{background:rgba(255,51,51,.1);border-color:var(--red);color:var(--red)}
.empty{text-align:center;padding:60px 20px;color:var(--g4)}
.empty h4{margin-bottom:10px;color:var(--g3);font-size:14px;font-weight:400}
.empty p{font-size:12px;line-height:1.8;max-width:400px;margin:0 auto}
/* -- MODALS -- */
.modal-overlay{position:fixed;inset:0;background:rgba(2,8,4,.85);display:none;
align-items:center;justify-content:center;z-index:100;backdrop-filter:blur(4px)}
.modal-overlay.active{display:flex}
.modal{background:var(--bg2);width:92%;max-width:820px;max-height:90vh;border:1px solid var(--g3);
display:flex;flex-direction:column;overflow:hidden;animation:fadeIn .2s ease}
.modal-header{padding:16px 22px;border-bottom:1px solid var(--g4);display:flex;justify-content:space-between;align-items:center;gap:16px;background:var(--bg3)}
.modal-header h3{font-size:14px;color:var(--g0);word-break:break-word;font-weight:500;line-height:1.4}
.modal-close{background:none;border:none;font-size:20px;color:var(--g3);cursor:pointer;line-height:1;padding:2px 6px;font-family:var(--font)}
.modal-close:hover{color:var(--red)}
.modal-meta{padding:10px 22px;background:var(--bg);border-bottom:1px solid var(--g4);font-size:11px;color:var(--g3);display:flex;gap:20px;flex-wrap:wrap}
.modal-meta strong{color:var(--g1)}
.modal-body{flex:1;overflow-y:auto;padding:20px 22px;line-height:1.7;font-size:13px;color:var(--g2);background:var(--bg)}
.modal-body pre{white-space:pre-wrap;word-wrap:break-word;font-family:var(--font);font-size:13px;
background:var(--bg3);padding:14px;border:1px solid var(--g4);color:var(--g1);line-height:1.7}
.modal-footer{padding:14px 22px;border-top:1px solid var(--g4);display:flex;justify-content:flex-end;gap:8px;background:var(--bg3)}
.modal-footer .btn{width:auto;padding:7px 18px;font-size:10px}
/* -- COMPOSE -- */
.compose-field{margin-bottom:14px}
.compose-field label{display:block;font-size:10px;font-weight:500;color:var(--g3);margin-bottom:6px;text-transform:uppercase;letter-spacing:1px}
.compose-field input{padding:8px 0;border:none;border-bottom:1px solid var(--g4);color:var(--g1)}
.compose-field input:focus{border-bottom-color:var(--g0);color:var(--g0);outline:none}
#compose-body{width:100%;min-height:220px;padding:12px;border:1px solid var(--g4);
font-family:var(--font);font-size:13px;resize:vertical;line-height:1.6;background:var(--bg);color:var(--g1)}
#compose-body:focus{outline:none;border-color:var(--g2)}
.compose-counter{text-align:right;font-size:10px;color:var(--g4);margin-top:5px;font-weight:500}
.compose-counter.warn{color:var(--amber)}.compose-counter.danger{color:var(--red)}
.compose-file{margin-top:10px;padding:12px;border:1px dashed var(--g4);text-align:center;
cursor:pointer;transition:all .15s;background:transparent}
.compose-file:hover{border-color:var(--g2);background:rgba(0,255,102,.03)}
.compose-file.has-file{border-color:var(--g1);border-style:solid}
.compose-file input[type=file]{display:none}
.compose-file-label{font-size:11px;color:var(--g3)}
.compose-file-name{font-size:11px;color:var(--g1);margin-top:3px}
.attachments-list{margin-top:12px}
.att-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:var(--bg3);
border:1px solid var(--g4);margin-bottom:4px;font-size:11px;color:var(--g1)}
.att-item button{font-size:9px;padding:2px 8px;background:transparent;border:1px solid var(--g4);
color:var(--g3);cursor:pointer;font-family:var(--font);text-transform:uppercase;letter-spacing:.5px}
.att-item button:hover{border-color:var(--red);color:var(--red)}
.attach-link{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:var(--bg3);
border:1px solid var(--g3);color:var(--g1);font-size:11px;cursor:pointer;transition:all .15s}
.attach-link:hover{background:var(--bg4);border-color:var(--g1)}
/* -- PASSWORD STRENGTH -- */
.pw-strength{margin-top:8px}
.pw-bars{display:flex;gap:3px;margin-bottom:5px}
.pw-seg{flex:1;height:3px;background:var(--g4);transition:background .25s}
.pw-seg.lit-1{background:var(--red)}
.pw-seg.lit-2{background:#cc5500}
.pw-seg.lit-3{background:var(--amber)}
.pw-seg.lit-4{background:var(--g2)}
.pw-seg.lit-5{background:var(--g0)}
.pw-row{display:flex;justify-content:space-between;font-size:10px}
.pw-label{color:var(--g4);transition:color .25s}
.pw-hint{color:var(--g4);text-align:right}
/* -- USER SCAN MODAL -- */
#scan-modal .modal{max-width:620px}
.scan-row{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid var(--g4);font-size:12px}
.scan-row:last-child{border-bottom:none}
.scan-idx{color:var(--g4);min-width:24px;font-size:10px}
.scan-user{color:var(--g0);font-weight:500;min-width:130px}
.scan-ts{color:var(--g3);font-size:10px;min-width:110px}
.scan-key{color:var(--g4);font-size:9px;font-family:var(--font);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.scan-empty{padding:24px;text-align:center;color:var(--g4);font-size:12px}
/* -- TOAST -- */
.toast{position:fixed;bottom:52px;right:18px;background:var(--bg3);color:var(--g1);
padding:10px 18px;font-size:11px;box-shadow:0 4px 12px rgba(0,0,0,.4);
transform:translateY(100px);transition:transform .3s cubic-bezier(.175,.885,.32,1.275);
z-index:300;max-width:320px;line-height:1.5;border:1px solid var(--g4)}
.toast.show{transform:translateY(0)}
.toast.error{background:#140404;border-color:var(--red);color:#ff9999}
.toast.success{background:#021408;border-color:var(--g1);color:var(--g0)}
.toast.warn{background:#140a00;border-color:var(--amber);color:#ffcc66}
/* -- DEBUG BAR -- */
#dbgbar{background:var(--bg3);border-top:1px solid var(--g4);flex-shrink:0;overflow:hidden;height:26px;transition:height .2s}
#dbgbar.open{height:140px}
#dbg-head{display:flex;align-items:center;gap:10px;padding:5px 14px;cursor:pointer;user-select:none;border-bottom:1px solid var(--g4)}
#dbg-label{font-size:10px;color:var(--g3);flex:1;text-transform:uppercase;letter-spacing:.5px}
#dbg-arr{font-size:9px;color:var(--g4)}
#dbg-entries{height:114px;overflow-y:auto;padding:4px 14px;display:flex;flex-direction:column;gap:2px;font-size:10px}
.de{display:flex;gap:10px;line-height:1.6}
.de-ts{color:var(--g4);min-width:56px;flex-shrink:0}
.de-ok{color:var(--g1)}.de-err2{color:var(--red)}.de-info{color:var(--g3)}
/* -- RESPONSIVE -- */
@media(max-width:768px){
.sidebar{width:60px}
.sidebar-header h2,.nav-btn span:last-child,.addr,.addr-btn,.e2e-pill{display:none}
.nav-btn{justify-content:center;padding:14px 0;font-size:16px}
.email-snippet,.email-date{display:none}
.email-sender{width:100px}
}
</style>
</head>
<body>
<div id="app">
<!-- ========================= LOGIN ========================= -->
<div id="login-view">
<div class="warn-box open" id="login-warn">
<div class="warn-head" onclick="document.getElementById('login-warn').classList.toggle('open')">
<span class="warn-title">⚠️ Important · Read Before Use</span>
<span class="warn-arr">▾</span>
</div>
<div class="warn-body">
<ul class="warn-list">
<li>This is an <strong>experimental prototype</strong>, not a secure email service.</li>
<li>Anyone can <strong>impersonate any sender</strong> – the “From” address is NOT verified.</li>
<li>Accounts expire at <strong>00:00 UTC every day</strong> and must be recreated.</li>
<li>All messages disappear from the server after <strong>~6 days</strong> (filebin retention).</li>
<li>Your private key is stored <strong>publicly</strong> (encrypted by password) – use a strong, unique password.</li>
<li>The public key registry is <strong>untrusted</strong> – no proof of ownership.</li>
<li>Do <strong>NOT</strong> share sensitive information.</li>
</ul>
</div>
</div>
<div class="login-box">
<div class="login-box-head">
<h1>🔒 Open.Mail<span class="cur">_</span></h1>
<div class="sub">end-to-end encrypted · <span class="privacy-badge">X25519 + AES-GCM</span></div>
</div>
<div class="login-box-body">
<div id="login-mode">
<div class="input-group">
<label>Group</label>
<input type="text" id="login-group" placeholder="your_group" autocomplete="off" spellcheck="false" oninput="mirrorGroupInput(this.value,'signup-group')">
</div>
<div class="input-group">
<label>Username</label>
<input type="text" id="login-user" placeholder="your_username" autocomplete="off" spellcheck="false">
</div>
<div class="input-group">
<label>Password</label>
<input type="password" id="login-pass" placeholder="••••••••">
</div>
<button type="button" type="button" class="btn" onclick="doLogin()">▶ Log In</button>
<p class="note"><a href="#" onclick="toggleAuthMode();return false">Create an account →</a></p>
</div>
<div id="signup-mode" style="display:none">
<div class="input-group">
<label>Group</label>
<input type="text" id="signup-group" placeholder="your_group" autocomplete="off" spellcheck="false" oninput="mirrorGroupInput(this.value,'login-group')">
</div>
<div class="input-group">
<label>Username</label>
<input type="text" id="signup-user" placeholder="your_username" autocomplete="off" spellcheck="false">
</div>
<div class="input-group">
<label>Password</label>
<input type="password" id="signup-pass" placeholder="min 6 characters" oninput="updatePwStrength(this.value)">
<div class="pw-strength" id="pw-strength">
<div class="pw-bars">
<div class="pw-seg" id="ps1"></div>
<div class="pw-seg" id="ps2"></div>
<div class="pw-seg" id="ps3"></div>
<div class="pw-seg" id="ps4"></div>
<div class="pw-seg" id="ps5"></div>
</div>
<div class="pw-row">
<span class="pw-label" id="pw-label">enter a password</span>
<span class="pw-hint" id="pw-hint"></span>
</div>
</div>
</div>
<div class="input-group">
<label>Confirm Password</label>
<input type="password" id="signup-confirm" placeholder="••••••••">
</div>
<button type="button" type="button" class="btn" onclick="doSignup()">▶ Create Account</button>
<p class="note"><a href="#" onclick="toggleAuthMode();return false">← Already have an account</a></p>
</div>
<p class="note">Group names have no password. Enter the group name directly; a group link is optional.</p>
<p class="note">Private key never leaves your device.</p>
</div>
<div class="login-box-foot">group-isolated rolling Filebin bins · verified uploads · ~6 day message retention</div>
</div>
</div>
<!-- ========================= MAIL VIEW ========================= -->
<div id="mail-view">
<aside class="sidebar">
<div class="sidebar-header">
<h2>Open.Mail</h2>
<div class="addr" id="account-addr">…</div>
<div class="addr" id="group-addr">group: …</div>
<div class="e2e-pill">🔒 E2E</div>
<button type="button" class="addr-btn" onclick="copyAddr()">Copy Address</button>
<button type="button" class="addr-btn" onclick="copyGroupLink()">Copy Group Link</button>
</div>
<button type="button" class="nav-btn active" id="nav-inbox" onclick="showInbox()"><span>📧</span> <span>Inbox</span></button>
<button type="button" class="nav-btn" id="nav-compose" onclick="openCompose()"><span>✎</span> <span>Compose</span></button>
<button type="button" class="nav-btn" id="nav-sent" onclick="showSent()"><span>→</span> <span>Sent</span></button>
<div class="sidebar-footer">
<button type="button" class="btn btn-ghost" onclick="openScanUsers()">🔎 Scan Users</button>
<button type="button" class="btn btn-ghost" onclick="doLock()">🔒 Lock</button>
<button type="button" class="btn btn-ghost" onclick="clearCache()">Clear Cache</button>
<button type="button" class="btn btn-danger" onclick="doLogout()">Logout</button>
</div>
</aside>
<main class="main">
<div class="topbar">
<h3 id="page-title">Inbox <span id="queue-badge" style="font-size:10px;color:var(--amber)"></span></h3>
<div class="actions">
<button type="button" onclick="refreshInbox()">Refresh</button>
<button type="button" onclick="openCompose()">Compose</button>
</div>
</div>
<div class="content" id="inbox-content">
<div class="empty"><h4>Loading inbox…</h4></div>
</div>
</main>
</div>
<!-- ========================= SCAN USERS MODAL ========================= -->
<div class="modal-overlay" id="scan-modal">
<div class="modal">
<div class="modal-header">
<h3>🔎 Registry Scan — <span id="scan-title" style="color:var(--g3);font-size:12px">openmail registry</span></h3>
<button type="button" class="modal-close" onclick="document.getElementById('scan-modal').classList.remove('active')">×</button>
</div>
<div class="modal-meta" id="scan-meta">
<div>fetching registry…</div>
</div>
<div class="modal-body" id="scan-body" style="padding:0 22px"></div>
<div class="modal-footer">
<button type="button" class="btn btn-ghost" onclick="document.getElementById('scan-modal').classList.remove('active')">Close</button>
<button type="button" class="btn btn-secondary" onclick="openComposeToScanned()">✎ Compose to selected</button>
</div>
</div>
</div>
<!-- ========================= DEBUG BAR ========================= -->
<div id="dbgbar">
<div id="dbg-head" onclick="toggleDbg()">
<span id="dbg-label">API log · 0 calls</span>
<span id="dbg-arr">▴</span>
</div>
<div id="dbg-entries"></div>
</div>
<!-- ========================= READER MODAL ========================= -->
<div class="modal-overlay" id="reader-modal">
<div class="modal">
<div class="modal-header">
<h3 id="read-subject">Subject</h3>
<button type="button" class="modal-close" onclick="closeModal()">×</button>
</div>
<div class="modal-meta">
<div><strong>From:</strong> <span id="read-from"></span></div>
<div><strong>To:</strong> <span id="read-to"></span></div>
<div><strong>Date:</strong> <span id="read-date"></span></div>
<div><strong>Enc:</strong> <span style="color:var(--g1)">🔒 X25519+AES-GCM</span></div>
</div>
<div class="modal-body" id="read-body">…</div>
<div class="modal-footer">
<button type="button" class="btn btn-ghost" onclick="closeModal()">Close</button>
<button type="button" class="btn btn-secondary" onclick="replyToCurrent()">↩ Reply</button>
<button type="button" class="btn btn-danger" onclick="deleteCurrent()">✕ Delete</button>
</div>
</div>
</div>
<!-- ========================= COMPOSE MODAL ========================= -->
<div class="modal-overlay" id="compose-modal">
<div class="modal">
<div class="modal-header">
<h3>Compose <span style="font-size:10px;border:1px solid rgba(0,255,102,.3);color:var(--g2);padding:2px 8px">🔒 E2E ENCRYPTED</span></h3>
<button type="button" class="modal-close" onclick="closeCompose()">×</button>
</div>
<div style="padding:16px 22px 0">
<div class="compose-field">
<label>To (Username)</label>
<input type="text" id="compose-to" placeholder="user@group.open.mail">
</div>
<div class="compose-field">
<label>Subject</label>
<input type="text" id="compose-subject" placeholder="Subject">
</div>
</div>
<div class="modal-body" style="padding-top:8px">
<textarea id="compose-body" placeholder="Write your message… (encrypted with recipient's public key)"></textarea>
<div class="compose-counter" id="compose-counter">Calculating…</div>
<div class="compose-file" id="compose-file-area" onclick="document.getElementById('compose-file').click()">
<input type="file" id="compose-file" multiple onchange="onFileSelected(this)">
<div class="compose-file-label" id="compose-file-label">+ Attach files (encrypted, max 4 at once)</div>
<div class="compose-file-name" id="compose-file-name"></div>
</div>
<div class="attachments-list" id="compose-attachments"></div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-ghost" onclick="closeCompose()">Discard</button>
<button type="button" class="btn" onclick="sendEmail()">▶ Send Encrypted</button>
</div>
</div>
</div>
<div class="toast" id="toast">Notification</div>
<script>
/* ============================================================
DEBUG LOG
============================================================ */
let _dbgN = 0, _dbgOpen = false;
function dbg(msg, type) {
_dbgN++;
const ts = new Date().toLocaleTimeString('en',{hour12:false,hour:'2-digit',minute:'2-digit',second:'2-digit'});
const cls = type==='ok' ? 'de-ok' : type==='err' ? 'de-err2' : 'de-info';
const el = document.getElementById('dbg-entries');
if (el) {
const row = document.createElement('div');
row.className = 'de';
row.innerHTML = `<span class="de-ts">${ts}</span><span class="${cls}">${String(msg).replace(/</g,'<')}</span>`;
el.appendChild(row);
el.scrollTop = el.scrollHeight;
}
const lbl = document.getElementById('dbg-label');
if (lbl) lbl.textContent = `API log \u00b7 ${_dbgN} call${_dbgN!==1?'s':''}`;
if (type === 'err' && !_dbgOpen) toggleDbg();
console[type==='err'?'error':'log']('[OpenMail]', msg);
}
function toggleDbg() {
_dbgOpen = !_dbgOpen;
document.getElementById('dbgbar').classList.toggle('open', _dbgOpen);
document.getElementById('dbg-arr').textContent = _dbgOpen ? '\u25be' : '\u25b4';
}
/* ============================================================
CONSTANTS
============================================================ */
const SRV = 'https://filebin.net';
/* Filebin deletes uploads after roughly six days, so the literal `openmail`
bin cannot be permanent infrastructure. `openmail` is now a logical alias:
writes go to today's deterministic rolling bin, while reads search today's
bin, the previous seven UTC-day bins, and the old legacy bin. All clients
can independently calculate the same bin names without a central pointer. */
const OPENMAIL_LOGICAL_BIN = 'openmail';
const OPENMAIL_GROUP_LOGICAL_PREFIX = 'openmail-g-';
const OPENMAIL_ROLLING_PREFIX = 'omr2';
const OPENMAIL_NETWORK_SEED = 'openmail-fixed-rolling-2026';
const OPENMAIL_LOOKBACK_DAYS = 7;
const OPENMAIL_DAY_MS = 24 * 60 * 60 * 1000;
let currentGroup = '';
function openMailFnv1a(text) {
let h=0x811c9dc5;
text=String(text||'');
for(let i=0;i<text.length;i++) h=Math.imul(h^text.charCodeAt(i),0x01000193)>>>0;
return h.toString(36);
}
function normalizeGroupName(value) {
return String(value||'').trim().toLowerCase().replace(/\s+/g,'-').replace(/[^a-z0-9_-]/g,'').replace(/^-+|-+$/g,'').slice(0,32);
}
function openMailGroupId(groupName) {
const g=normalizeGroupName(groupName);
if(!g) return '';
return openMailFnv1a('openmail-group:'+g)+openMailFnv1a(g+':openmail-group');
}
function openMailGroupLogicalBin(groupName) {
const gid=openMailGroupId(groupName===undefined?currentGroup:groupName);
return gid ? OPENMAIL_GROUP_LOGICAL_PREFIX+gid : OPENMAIL_LOGICAL_BIN;
}
function openMailGroupIdForBin(binId) {
const s=String(binId||'');
if(s.startsWith(OPENMAIL_GROUP_LOGICAL_PREFIX)) return s.slice(OPENMAIL_GROUP_LOGICAL_PREFIX.length);
if(!s || s===OPENMAIL_LOGICAL_BIN) return openMailGroupId(currentGroup);
return '';
}
function openMailBinForDayOffset(offset, nowMs, explicitGroupId) {
const day = Math.floor((Number(nowMs || Date.now())) / OPENMAIL_DAY_MS) + Number(offset || 0);
const gid=String(explicitGroupId||openMailGroupId(currentGroup)||'');
// Group-scoped bins are opaque: the plaintext group name never appears in Filebin.
// The group hash and UTC day together deterministically select the rolling bin.
const seed=gid ? OPENMAIL_NETWORK_SEED+':group:'+gid : OPENMAIL_NETWORK_SEED;
const groupTag=gid ? gid.slice(0,7)+'-' : '';
return OPENMAIL_ROLLING_PREFIX + '-' + groupTag + openMailFnv1a(seed+':'+day) + openMailFnv1a(day+':'+seed);
}
function openMailActiveBin(binId) { return openMailBinForDayOffset(0, undefined, openMailGroupIdForBin(binId)); }
function openMailCandidateBins(includeLegacy, binId) {
const out = [];
const gid=openMailGroupIdForBin(binId);
for (let i = 0; i <= OPENMAIL_LOOKBACK_DAYS; i++) out.push(openMailBinForDayOffset(-i, undefined, gid));
// Never merge the old global bin into a named group: that would defeat isolation.
if (!gid && includeLegacy !== false) out.push(OPENMAIL_LOGICAL_BIN);
return Array.from(new Set(out));
}
function openMailResolveWriteBin(binId) {
const s=String(binId||'');
if(!s || s===OPENMAIL_LOGICAL_BIN || s.startsWith(OPENMAIL_GROUP_LOGICAL_PREFIX)) return openMailActiveBin(s);
return s;
}
function openMailResolveReadBins(binId) {
const s=String(binId||'');
if(!s || s===OPENMAIL_LOGICAL_BIN || s.startsWith(OPENMAIL_GROUP_LOGICAL_PREFIX)) return openMailCandidateBins(true,s);
return [s];
}
const REGISTRY_BIN = OPENMAIL_LOGICAL_BIN; // resolved inside the active group
const FBN_MAX_NAME = 120;
/* ------------------------------------------------------------
CORS PROXY CHAIN
Single source of truth for read-through proxies. Ordered by
reliability; if one provider blocks or dies, the next is tried.
Each entry wraps a target URL into a proxied request URL.
------------------------------------------------------------ */
const CORS_PROXIES = [
// Ordered by observed reliability. 'direct' returns filebin's JSON when CORS
// permits; the rest are fallbacks that often return filebin's HTML page,
// which parseMailboxListingText is hardened to scrape.
{ label:'direct', wrap:(u)=>u, json:true },
{ label:'codetabs', wrap:(u)=>'https://api.codetabs.com/v1/proxy/?quest='+encodeURIComponent(u) },
{ label:'allorigins', wrap:(u)=>'https://api.allorigins.win/raw?url='+encodeURIComponent(u) },
{ label:'jina', wrap:(u)=>'https://r.jina.ai/'+u }
// Removed: corsproxy.io (now 403s without a paid API key) and
// thingproxy.freeboard.io (unreachable / NetworkError).
];
/* Fetch `targetUrl` through the proxy chain. Returns the first
Response with a usable status (ok, or 404 so callers can treat
"reached server, no such file" distinctly). Returns null only if
every transport threw a network error. */
async function proxiedFetch(targetUrl, { tag='GET', accept=null } = {}) {
let sawServer = false;
for (const p of CORS_PROXIES) {
const opts = { method:'GET', credentials:'omit', mode:'cors' };
// Always ask filebin for JSON; harmless for proxies that ignore it.
if (accept) opts.headers = { 'Accept':accept };
try {
const res = await fetchWithTimeout(p.wrap(targetUrl), opts, 25000);
dbg(` ${tag} ${p.label} \u2192 ${res.status}`, res.ok ? 'ok' : res.status===404 ? 'info' : 'err');
if (res.status === 404) { sawServer = true; continue; }
if (!res.ok) { sawServer = true; continue; }
return res;
} catch(e) {
dbg(` ${tag} ${p.label} error: ${e.message}`, 'err');
}
}
if (!sawServer) dbg(` ${tag}: all transports failed (network/blocked)`, 'err');
return null;
}
const SESSION_TIMEOUT_MS = 5 * 60 * 1000;
const SERVER_RETENTION_DAYS = 6;
const REFRESH_INTERVAL_MS = 30000;
const CHUNK_RAW_BUDGET = 75;
/* Daily-account policy shared with ACNET. Credentials are valid only for the
UTC calendar day on which they were created. At 00:00 UTC the account must
be recreated, which intentionally generates a new X25519 identity. */
const ACCOUNT_DAY_MS = 24 * 60 * 60 * 1000;
function accountDayKey(tsMs) { return Math.floor(Number(tsMs || 0) / ACCOUNT_DAY_MS); }
function currentAccountDay(nowMs) { return accountDayKey(nowMs === undefined ? Date.now() : nowMs); }
function credentialAccountDay(cred) {
if (cred && Number.isFinite(Number(cred.accountDay))) return Number(cred.accountDay);
return accountDayKey(cred && cred.createdAt);
}
function isCredentialCurrentDay(cred, nowMs) { return !!cred && credentialAccountDay(cred) === currentAccountDay(nowMs); }
function isTimestampCurrentDay(tsMs, nowMs) { return accountDayKey(tsMs) === currentAccountDay(nowMs); }
function msUntilNextUtcDay(nowMs) {
const now = Number(nowMs === undefined ? Date.now() : nowMs);
return Math.max(1000, ((currentAccountDay(now) + 1) * ACCOUNT_DAY_MS) - now + 250);
}
/* ============================================================
STATE
============================================================ */
let username = null, currentUser = null;
let myPrivateKey = null, myPublicKeyB64 = null;
let sessionAesKey = null, sessionTimeout = null, refreshTimer = null, dailyExpiryTimeout = null;
let emails = [], sentMails = [];
let currentEmailIdx = null, currentFolder = 'inbox';
let selectedAttachments = [];
let currentAttachments = []; // parsed attachments for the currently open email
function currentGroupId(){ return openMailGroupId(currentGroup); }
function openMailAddress(user, groupName){
const u=String(user||'').trim().toLowerCase().replace(/[^a-z0-9_-]/g,'');
const g=normalizeGroupName(groupName===undefined?currentGroup:groupName);
return u && g ? u+'@'+g+'.open.mail' : (u ? u+'@open.mail' : '');
}
function parseOpenMailAddress(value){
const raw=String(value||'').trim();
const m=raw.match(/^([a-z0-9_-]{1,32})@([a-z0-9_-]{1,32})\.open\.mail$/i);
if(m) return {user:m[1].toLowerCase(),group:normalizeGroupName(m[2]),full:true};
if(/^[a-z0-9_-]{1,32}$/i.test(raw)) return {user:raw.toLowerCase(),group:currentGroup,full:false};
return null;
}
function mirrorGroupInput(value, otherId){
const other=document.getElementById(otherId);
if(other && other.value!==value) other.value=value;
}
function groupFromUrl(){
try{
const u=new URL(location.href);
return normalizeGroupName(u.searchParams.get('group')||'');
}catch(_){ return ''; }
}
function rememberLastGroup(groupName){
try{ if(groupName) localStorage.setItem('openmail_last_group',groupName); }catch(_){}
}
function readLastGroup(){
try{ return normalizeGroupName(localStorage.getItem('openmail_last_group')||''); }catch(_){ return ''; }
}
function syncGroupToUrl(groupName){
const g=normalizeGroupName(groupName);
if(!g) return;
try{
const u=new URL(location.href);
u.searchParams.set('group',g);
history.replaceState(null,'',u.href);
}catch(_){}
}
function setActiveGroup(groupName,{remember=true,syncUrl=true}={}){
const g=normalizeGroupName(groupName);
if(!g) throw new Error('Group required');
currentGroup=g;
const lg=document.getElementById('login-group'), sg=document.getElementById('signup-group');
if(lg) lg.value=g; if(sg) sg.value=g;
if(remember) rememberLastGroup(g);
if(syncUrl) syncGroupToUrl(g);
const ga=document.getElementById('group-addr'); if(ga) ga.textContent='group: '+g;
return g;
}
function initializeGroupSelection(){
const g=groupFromUrl() || readLastGroup() || currentGroup;
if(g){ try{ setActiveGroup(g,{remember:false,syncUrl:false}); }catch(_){} }
}
function groupShareUrl(){
const g=normalizeGroupName(currentGroup);
if(!g) return '';
try{ const u=new URL(location.href); u.searchParams.set('group',g); return u.href; }catch(_){ return ''; }
}
async function copyGroupLink(){
const url=groupShareUrl();
if(!url) return toast('No group selected','warn');
try{ await navigator.clipboard.writeText(url); toast('Group link copied','success'); }
catch(_){ prompt('Copy group link:',url); }
}
/* ============================================================
ENCODING HELPERS
============================================================ */
const TE = new TextEncoder();
const TD = new TextDecoder();
const delay = ms => new Promise(r => setTimeout(r, ms));
function strToBytes(s) { return TE.encode(s); }
function bytesToStr(b) { return TD.decode(b); }
function bytesToB64Url(bytes) {
let bin = '';
for (let i = 0; i < bytes.length; i++) bin += String.fromCharCode(bytes[i]);
return btoa(bin).replace(/\+/g,'-').replace(/\//g,'_').replace(/=/g,'');
}
function b64UrlToBytes(s) {
const p = s.replace(/-/g,'+').replace(/_/g,'/');
const pad = (4 - p.length % 4) % 4;
let decoded;
let effectivePad = pad;
if (pad === 3) {
decoded = atob(p + 'A==');
effectivePad = 2;
} else {
decoded = atob(p + '='.repeat(pad));
}
const meaningful = Math.floor(p.length / 4) * 3 + (effectivePad === 0 ? 0 : 3 - effectivePad);
const u = new Uint8Array(meaningful);
for (let i = 0; i < meaningful; i++) u[i] = decoded.charCodeAt(i);
return u;
}
function strToB64Url(s) { return bytesToB64Url(strToBytes(s)); }
function b64UrlToStr(s) { try { return bytesToStr(b64UrlToBytes(s)); } catch(e) { return null; } }
function concatBytes(...arrs) {
const total = arrs.reduce((a,b) => a+b.length, 0);
const out = new Uint8Array(total); let off = 0;
for (const a of arrs) { out.set(a, off); off += a.length; }
return out;
}
/* ============================================================
CRYPTO
============================================================ */
/* ---- fetch with timeout (prevents indefinite hangs) ---- */
function fetchWithTimeout(url, opts, timeoutMs) {
timeoutMs = timeoutMs || 25000;
var ctrl = new AbortController();
var t = setTimeout(function(){ ctrl.abort(); }, timeoutMs);
opts = opts || {};
opts.signal = ctrl.signal;
return fetch(url, opts).finally(function(){ clearTimeout(t); });
}
const CRYPTO = {
async sha256(text) {
const buf = await crypto.subtle.digest('SHA-256', strToBytes(text));
return Array.from(new Uint8Array(buf)).map(b=>b.toString(16).padStart(2,'0')).join('');
},
async deriveAesFromPassword(password, salt) {
const km = await crypto.subtle.importKey('raw', strToBytes(password), {name:'PBKDF2'}, false, ['deriveKey']);
return crypto.subtle.deriveKey(
{name:'PBKDF2',salt:strToBytes(salt),iterations:150000,hash:'SHA-256'},
km, {name:'AES-GCM',length:256}, false, ['encrypt','decrypt']
);
},
async encryptJson(obj, key) {
const iv = crypto.getRandomValues(new Uint8Array(12));
const ct = await crypto.subtle.encrypt({name:'AES-GCM',iv}, key, strToBytes(JSON.stringify(obj)));
return JSON.stringify({iv:Array.from(iv), d:Array.from(new Uint8Array(ct))});
},
async decryptJson(blob, key) {
const o = JSON.parse(blob);
const pt = await crypto.subtle.decrypt({name:'AES-GCM',iv:new Uint8Array(o.iv)}, key, new Uint8Array(o.d));
return JSON.parse(bytesToStr(new Uint8Array(pt)));
},
randomSalt() {
return Array.from(crypto.getRandomValues(new Uint8Array(16))).map(b=>b.toString(16).padStart(2,'0')).join('');
},
async generateX25519Keypair() { return crypto.subtle.generateKey({name:'X25519'}, true, ['deriveBits']); },
async exportPublicRaw(pk) { return new Uint8Array(await crypto.subtle.exportKey('raw', pk)); },
async exportPrivateJwk(pk) { return crypto.subtle.exportKey('jwk', pk); },
async importPublicRaw(rb) { return crypto.subtle.importKey('raw', rb, {name:'X25519'}, true, []); },
async importPrivateJwk(jwk){ return crypto.subtle.importKey('jwk', jwk, {name:'X25519'}, false, ['deriveBits']); },
async deriveSharedAesKey(privKey, pubKey) {
const sb = await crypto.subtle.deriveBits({name:'X25519',public:pubKey}, privKey, 256);
const km = await crypto.subtle.importKey('raw', sb, {name:'HKDF'}, false, ['deriveKey']);
return crypto.subtle.deriveKey(
{name:'HKDF',hash:'SHA-256',salt:new Uint8Array(32),info:strToBytes('OpenMail-v2-X25519')},
km, {name:'AES-GCM',length:256}, false, ['encrypt','decrypt']
);
},
async aesGcmEncrypt(key,iv,bytes){ return new Uint8Array(await crypto.subtle.encrypt({name:'AES-GCM',iv},key,bytes)); },
async aesGcmDecrypt(key,iv,bytes){ return new Uint8Array(await crypto.subtle.decrypt({name:'AES-GCM',iv},key,bytes)); },
async generateAesKey() { return crypto.subtle.generateKey({name:'AES-GCM',length:256},true,['encrypt','decrypt']); },
async exportAesKey(key){ return new Uint8Array(await crypto.subtle.exportKey('raw',key)); },
async importAesKey(rb) { return crypto.subtle.importKey('raw',rb,{name:'AES-GCM'},false,['encrypt','decrypt']); }
};
/* ============================================================
PLAINTEXT PACK / UNPACK
============================================================ */
function packPlaintext(from, subject, tsSec, body) {
const fb=strToBytes(from), sb=strToBytes(subject), bb=strToBytes(body||'');
if(fb.length>65535||sb.length>65535) throw new Error('from/subject too long');
const out=new Uint8Array(2+fb.length+2+sb.length+4+bb.length);
let i=0;
out[i++]=fb.length>>8; out[i++]=fb.length&0xff; out.set(fb,i); i+=fb.length;
out[i++]=sb.length>>8; out[i++]=sb.length&0xff; out.set(sb,i); i+=sb.length;
out[i++]=(tsSec>>>24)&0xff; out[i++]=(tsSec>>>16)&0xff; out[i++]=(tsSec>>>8)&0xff; out[i++]=tsSec&0xff;
out.set(bb,i); return out;
}
function unpackPlaintext(buf) {
let i=0;
const fl=(buf[i]<<8)|buf[i+1]; i+=2;
const from=bytesToStr(buf.subarray(i,i+fl)); i+=fl;
const sl=(buf[i]<<8)|buf[i+1]; i+=2;
const subject=bytesToStr(buf.subarray(i,i+sl)); i+=sl;
const ts=((buf[i]<<24)|(buf[i+1]<<16)|(buf[i+2]<<8)|buf[i+3])>>>0; i+=4;
const body=bytesToStr(buf.subarray(i));
return {from,subject,ts,body};
}
function makeEid(tsSec) {
return tsSec.toString(36) + Math.floor(Math.random()*1296).toString(36).padStart(2,'0');
}
/* ============================================================
ENCRYPTED EMAIL FILENAME BUILDER
============================================================ */
async function encryptEmailFilenames(recipientPubKey, from, subject, body, tsMs) {
const tsSec=Math.floor(tsMs/1000), eid=makeEid(tsSec);
const plaintext=packPlaintext(from,subject,tsSec,body);
const ephKp=await CRYPTO.generateX25519Keypair();
const ephPub=await CRYPTO.exportPublicRaw(ephKp.publicKey);
const sharedKey=await CRYPTO.deriveSharedAesKey(ephKp.privateKey,recipientPubKey);
const iv=crypto.getRandomValues(new Uint8Array(12));
const cipher=await CRYPTO.aesGcmEncrypt(sharedKey,iv,plaintext);
const numChunks=Math.ceil(cipher.length/CHUNK_RAW_BUDGET)||1;
if(numChunks>65535) throw new Error('Message too long');
const headerData=concatBytes(ephPub,iv,new Uint8Array([numChunks>>8,numChunks&0xff]));
const headerFn='xh-'+eid+'-'+bytesToB64Url(headerData);
const chunkFns=[];
for(let i=0;i<numChunks;i++){
const slice=cipher.subarray(i*CHUNK_RAW_BUDGET,Math.min((i+1)*CHUNK_RAW_BUDGET,cipher.length));
chunkFns.push('xc-'+eid+'-'+i+'-'+bytesToB64Url(slice));
}
return {eid,header:headerFn,chunks:chunkFns};
}
/* ============================================================
ENCRYPTED EMAIL PARSING
============================================================ */
function parseEncFile(filename) {
let fn=filename;
const pm=fn.match(/^u\.[a-z0-9_-]+\.(xh-|xc-)/i);
if(pm) fn=fn.slice(fn.indexOf(pm[1]));
let m=fn.match(/^xh-([a-z0-9]+)-(.+)$/);
if(m){
let d=m[2];
if(d.endsWith('_CRC_')) d=d.slice(0,-5);
return {kind:'header',eid:m[1],data:d,filename:fn};
}
m=fn.match(/^xc-([a-z0-9]+)-(\d+)-(.+)$/);
if(m){
let d=m[3];
if(d.endsWith('_CRC_')) d=d.slice(0,-5);
return {kind:'chunk',eid:m[1],idx:parseInt(m[2],10),data:d,filename:fn};
}
return null;
}
async function decryptEmail(headerEntry, chunkEntries, myPriv) {
try {
const hdr=b64UrlToBytes(headerEntry.data);
if(hdr.length<46) return null;
const ephPub=await CRYPTO.importPublicRaw(hdr.subarray(0,32));
const iv=hdr.subarray(32,44);
const numChunks=(hdr[44]<<8)|hdr[45];
const chunkMap=new Map();
for(const c of chunkEntries) chunkMap.set(c.idx,c.data);
const slices=[];
for(let i=0;i<numChunks;i++){
const data=chunkMap.get(i);
if(data===undefined) return null;
slices.push(b64UrlToBytes(data));
}
const cipher=concatBytes(...slices);
const sharedKey=await CRYPTO.deriveSharedAesKey(myPriv,ephPub);
const plaintextBytes=await CRYPTO.aesGcmDecrypt(sharedKey,iv,cipher);
const parsed=unpackPlaintext(plaintextBytes);
return {from:parsed.from,subject:parsed.subject,body:parsed.body,date:parsed.ts*1000,
filename:headerEntry.fullName||headerEntry.filename,
chunks:chunkEntries.sort((a,b)=>a.idx-b.idx).map(c=>c.fullName||c.filename),serverBin:headerEntry.bin||null,encrypted:true};
} catch(e) { console.warn('decrypt failed',headerEntry.filename,e); return null; }
}
/* ============================================================
USER STORAGE
============================================================ */
// Privacy policy: never persist usernames, account lists, passwords, or
// credential recovery records. Daily accounts must be recreated explicitly.
function getSavedUsernames() { return []; }
function addSavedUsername() {}
function removeSavedUsername() {}
function getEncBlobKey(uname) { return 'openmail_blob_'+(currentGroupId()||'nogroup')+'_'+String(uname||'').toLowerCase(); }
function getRecoveryKey(uname) { return 'openmail_recovery_'+(currentGroupId()||'nogroup')+'_'+String(uname||'').toLowerCase(); }
function saveLocalCredentialRecovery() { return false; }
function readLocalCredentialRecovery() { return null; }
function purgeSavedUserData() {
try {
localStorage.removeItem('openmail_accounts');
const remove=[];
for(let i=0;i<localStorage.length;i++){
const k=localStorage.key(i);
if(k && k.startsWith('openmail_recovery_')) remove.push(k);
}
remove.forEach(k=>localStorage.removeItem(k));
} catch(_) {}
}
/* ============================================================
CREDENTIAL RECORDS (stored in Filebin filenames, not localStorage)
============================================================ */
function getCredFilename(uname) { return 'cred-' + uname; } // legacy body-based credential
function fileNameOf(f) {
if (!f) return '';
if (typeof f === 'string') return f;
return f.name || f.filename || f.fileName || f.file || f.path || '';
}
const CRED_FN_PREFIX = 'ua';
const CRED_FN_CHUNK_BUDGET = 72; // conservative: keeps every auth filename below Filebin's short-name limit
function cleanCredentialForStorage(cred) {
const c = {};
['version','username','groupId','salt','passwordHash','pubKeyB64','encryptedPriv','createdAt','accountDay','storage'].forEach(k => {
if (cred && cred[k] !== undefined) c[k] = cred[k];
});
c.version = Math.max(2, Number(c.version || 2));
c.storage = 'filename-chunks';
return c;
}
function makeCredentialFilenames(credObj) {
const clean = cleanCredentialForStorage(credObj);
const payload = strToB64Url(JSON.stringify(clean));
const cid = Date.now().toString(36) + Math.random().toString(36).slice(2, 8);
const total = Math.ceil(payload.length / CRED_FN_CHUNK_BUDGET) || 1;
if (total > 1295) throw new Error('Credential record too large');
const names = [];
for (let i = 0; i < total; i++) {
const part = payload.slice(i * CRED_FN_CHUNK_BUDGET, (i + 1) * CRED_FN_CHUNK_BUDGET);
const fn = `${CRED_FN_PREFIX}-${cid}-${i.toString(36)}-${total.toString(36)}-${part}`;
if (fn.length > FBN_MAX_NAME) throw new Error('Credential filename exceeds Filebin limit');
names.push(fn);
}
return names;
}
function parseCredentialFilename(fn) {
fn = String(fn || '');
const m = fn.match(/^ua-([a-z0-9]+)-([0-9a-z]+)-([0-9a-z]+)-([A-Za-z0-9_-]+)$/);
if (!m) return null;
return { cid:m[1], idx:parseInt(m[2],36), total:parseInt(m[3],36), data:m[4], filename:fn };
}
function reconstructCredentialsFromFiles(files, wantedUser) {
const groups = new Map();
for (const f of files || []) {
// ACNET cross-compat: listings that were not prefix-filtered (relay lists,
// whole-bin scrapes) carry the full logical name "u.<slug>.ua-…", and some
// proxies glue path/header junk before the token. Normalize to the bare
// ua- tail exactly like ACNET's omReconstructCredentialsFromFiles does.
let fn = String(fileNameOf(f) || '').split('/').pop();
const pref = fn.match(/^u\.([a-z0-9-]+)\.(ua-.+)$/i);
if (pref) fn = pref[2];
const uaAt = fn.indexOf('ua-');
if (uaAt > 0) fn = fn.slice(uaAt);
const p = parseCredentialFilename(fn);
if (!p || !Number.isFinite(p.idx) || !Number.isFinite(p.total) || p.total < 1) continue;
if (!groups.has(p.cid)) groups.set(p.cid, { total:p.total, chunks:new Map(), filenames:[], bin:(f && f._bin) || null });
const g = groups.get(p.cid);
if (g.total !== p.total) continue;
g.chunks.set(p.idx, p.data);
g.filenames.push(p.filename);
}
const candidates = [];
groups.forEach((g, cid) => {
if (g.chunks.size !== g.total) return;
let payload = '';
for (let i = 0; i < g.total; i++) {
const part = g.chunks.get(i);
if (part === undefined) return;
payload += part;
}
try {
const raw = b64UrlToStr(payload);
const cred = JSON.parse(raw);
if (!cred || String(cred.username || '').toLowerCase() !== String(wantedUser || '').toLowerCase()) return;
if (cred.groupId && cred.groupId !== currentGroupId()) return;
cred._source = 'filename';
cred._cid = cid;
cred._filenames = g.filenames;
cred._bin = g.bin || null;
candidates.push(cred);
} catch(e) {
dbg(`CRED: corrupt filename credential set ${cid}`, 'err');
}
});
candidates.sort((a,b) => (b.createdAt || 0) - (a.createdAt || 0));
return candidates[0] || null;
}
async function fetchCredentialBodyFromBin(uname, bin, sourceLabel) {
const fn = userPrefix(uname) + getCredFilename(uname);
const url = `${SRV}/${encodeURIComponent(bin)}/${encodeURIComponent(fn)}`;
dbg(`CRED BODY FETCH: /${bin}/${fn}`);
const res = await proxiedFetch(url, { tag:sourceLabel || 'CRED body' });