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espresso_frame/firmware/main/root.html
T
tfaour 5e86a20e8b
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Fix config read-modify-write race and two firmware buffer edge cases
Found by a thorough code review:

- server/app/config.py's load()/save() each locked only their own file
  I/O, not the full read-modify-write cycle each route does around
  them. Since uvicorn dispatches sync routes to a thread pool, two
  concurrent requests (e.g. the device's own poll landing alongside a
  web UI edit) could each load() the same on-disk state and the
  second's save() silently clobber the first's changes. Added
  config.locked() (backed by an RLock, since load()/save() also take
  the lock internally) and wrapped every mutating route's
  load/mutate/save span in it -- kept outside the lock wherever a route
  also does slow Immich network I/O, re-loading fresh state right
  before the actual mutation instead. Verified with a new concurrency
  stress test (many concurrent /api/queue/promote and /api/config
  calls) alongside the existing scratch suite.
- firmware/main/root.html's SSID/password/toolsserver/access-token
  inputs had no maxlength, so pasting something longer than the
  matching NVS buffer (wifi_provisioning.h's FRAME_CFG_*_MAX_LEN) was
  silently truncated with no indication why the device later can't
  connect or gets 401s.
- frame_client.c's share_url buffer (256 bytes) could be too small in
  the worst case -- toolsserver (128) + "/frame/share/" + asset_id (47)
  + "?token=" + access_token (64) can reach ~266 bytes, silently
  dropping the token off a request that would then just 401 with no
  obvious cause. Widened to 320.
2026-07-19 15:20:26 -04:00

111 lines
3.4 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>ESPRESSO Setup</title>
<style>
body {
font-family: Arial, sans-serif;
background-color: #f4f4f9;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
}
.container {
background-color: white;
padding: 30px;
border-radius: 8px;
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
text-align: center;
width: 100%;
max-width: 320px;
}
h1 {
color: #333;
font-size: 24px;
margin-top: 0;
}
p {
color: #666;
font-size: 14px;
margin-bottom: 25px;
}
.input-group {
text-align: left;
margin-bottom: 15px;
}
label {
display: block;
font-size: 12px;
font-weight: bold;
color: #333;
margin-bottom: 5px;
}
input[type="text"],
input[type="password"] {
width: 100%;
padding: 10px;
box-sizing: border-box;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 14px;
}
button {
background-color: #007BFF;
color: white;
border: none;
padding: 12px;
width: 100%;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
margin-top: 10px;
}
button:hover {
background-color: #0056b3;
}
</style>
</head>
<body>
<div class="container">
<h1>Welcome to ESPRESSO</h1>
<p>Please connect me to your local wifi network</p>
<!-- The action attribute should point to wherever your server handles the data -->
<!-- maxlength on each field below mirrors its NVS buffer size in
wifi_provisioning.h (FRAME_CFG_*_MAX_LEN) -- firmware silently
truncates past that length, so keep these in sync if those
change. -->
<form action="/save_config" method="POST">
<div class="input-group">
<label for="ssid">Wifi SSID</label>
<input type="text" id="ssid" name="ssid" placeholder="Network Name" maxlength="32" required>
</div>
<div class="input-group">
<label for="password">Password</label>
<input type="password" id="password" name="password" placeholder="Network Password" maxlength="64">
</div>
<div class="input-group">
<label for="toolsserver">Tools Server</label>
<input type="text" id="toolsserver" name="toolsserver" placeholder="e.g. 192.168.1.50:8080 or https://frame.example.com" maxlength="128" required>
</div>
<div class="input-group">
<label for="access_token">Access Token (optional)</label>
<input type="text" id="access_token" name="access_token" placeholder="only if the server's MANAGEMENT_TOKEN is set" maxlength="64">
</div>
<button type="submit">Submit</button>
</form>
</div>
</body>
</html>