vibedns/web/templates/pages/settings_blockpage.html

{{define "content"}}
{{$s := .Data.S}}

<h1 class="page-title mb-1">Settings</h1>
<p class="text-body-secondary mb-4">Server configuration, stored in the database.</p>

{{template "settingsnav" .}}

<form method="post" action="/settings/blockpage" data-preview-url="/settings/blockpage/preview">
  <input type="hidden" name="_csrf" value="{{.CSRF}}">

  <div class="row g-3">
    <div class="col-12 col-xl-4">
      <div class="card mb-3">
        <div class="card-header">Block page server</div>
        <div class="card-body">
          <div class="form-check form-switch mb-3">
            <input type="hidden" name="enabled" value="false">
            <input class="form-check-input" type="checkbox" role="switch" id="bpEnabled"
                   name="enabled" value="true" {{if $s.BlockPage.Enabled}}checked{{end}}>
            <label class="form-check-label" for="bpEnabled">
              Serve a block page on HTTP/HTTPS {{template "restartbadge"}}
            </label>
          </div>
          <div class="form-text mb-3">
            Point a policy's sinkhole address at this host, and a browser that
            lands here instead of the real site sees the page below. Ports
            below 1024 need root or
            <span class="mono">CAP_NET_BIND_SERVICE</span>.
          </div>

          <label class="form-label" for="bpHTTP">HTTP listen address</label>
          <input type="text" class="form-control mono mb-3" id="bpHTTP" name="http_listen"
                 value="{{$s.BlockPage.HTTPListen}}" placeholder=":80" required>

          <label class="form-label" for="bpHTTPS">HTTPS listen address</label>
          <input type="text" class="form-control mono mb-3" id="bpHTTPS" name="https_listen"
                 value="{{$s.BlockPage.HTTPSListen}}" placeholder=":443" required>
          <div class="form-text">
            HTTPS is served with a self-signed certificate generated per
            hostname on the fly — browsers will show a trust warning, which
            is expected: this is not the real site's certificate.
          </div>

          <hr class="my-3">
          <div class="d-flex align-items-center gap-2 mb-2">
            <span class="status-dot {{if .Data.Running}}status-up{{else}}status-down{{end}}"></span>
            <span class="fw-semibold">
              {{if .Data.Running}}Listeners running{{else}}Listeners stopped{{end}}
            </span>
          </div>
          <dl class="row small mb-0">
            <dt class="col-5 text-body-secondary">HTTP</dt>
            <dd class="col-7 mono">{{if .Data.BoundHTTP}}{{.Data.BoundHTTP}}{{else}}&mdash;{{end}}</dd>
            <dt class="col-5 text-body-secondary">HTTPS</dt>
            <dd class="col-7 mono">{{if .Data.BoundHTTPS}}{{.Data.BoundHTTPS}}{{else}}&mdash;{{end}}</dd>
          </dl>
        </div>
      </div>

      <div class="card">
        <div class="card-header">Available placeholders</div>
        <div class="card-body">
          <p class="text-body-secondary small mb-2">
            Filled in per request by re-evaluating the requesting client
            against the policy engine, the same way a DNS query would be.
          </p>
          <dl class="row small mb-0">
            <dt class="col-5 mono">{{"{{.Domain}}"}}</dt>
            <dd class="col-7 text-body-secondary">Requested hostname</dd>
            <dt class="col-5 mono">{{"{{.ListName}}"}}</dt>
            <dd class="col-7 text-body-secondary">Matched blocklist name</dd>
            <dt class="col-5 mono">{{"{{.MatchedDomain}}"}}</dt>
            <dd class="col-7 text-body-secondary">Matched list entry</dd>
            <dt class="col-5 mono">{{"{{.PolicyName}}"}}</dt>
            <dd class="col-7 text-body-secondary">Matched policy name</dd>
            <dt class="col-5 mono">{{"{{.NetworkName}}"}}</dt>
            <dd class="col-7 text-body-secondary">Matched client network</dd>
            <dt class="col-5 mono">{{"{{.ClientIP}}"}}</dt>
            <dd class="col-7 text-body-secondary">Requesting address</dd>
            <dt class="col-5 mono">{{"{{.RequestPath}}"}}</dt>
            <dd class="col-7 text-body-secondary">URL path requested</dd>
            <dt class="col-5 mono">{{"{{.Scheme}}"}}</dt>
            <dd class="col-7 text-body-secondary">http or https</dd>
            <dt class="col-5 mono">{{"{{.Timestamp}}"}}</dt>
            <dd class="col-7 text-body-secondary">Time of the request</dd>
          </dl>
        </div>
      </div>
    </div>

    <div class="col-12 col-xl-8">
      <div class="card mb-3">
        <div class="card-header">HTML editor</div>
        <div class="card-body">
          <textarea class="form-control mono" id="blockPageHTML" name="html" rows="22"
                    spellcheck="false" style="font-size:.85rem">{{$s.BlockPage.HTML}}</textarea>
          <div class="form-text">
            Standard Go template syntax. A broken template falls back to a
            plain built-in page rather than breaking the listener.
          </div>
        </div>
      </div>

      <div class="card">
        <div class="card-header">Preview</div>
        <div class="card-body p-0">
          <iframe id="blockPagePreview" title="Block page preview"
                  style="width:100%;height:480px;border:0;border-radius:0 0 .5rem .5rem;background:#fff"></iframe>
        </div>
      </div>
    </div>
  </div>

  <div class="form-actions mt-3">
    <button type="submit" class="btn btn-primary">
      <i class="bi bi-check-lg me-1"></i>Save block page settings
    </button>
  </div>
</form>
{{end}}