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385 lines
11 KiB
Python
385 lines
11 KiB
Python
"""Server-rendered /login page.
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No React, no JavaScript dependency. Listed providers come from the
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registry; clicking a provider sends a GET to
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``/auth/login?provider=<name>``.
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Visual styling mirrors the Nous Research design system (the
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``@nous-research/ui`` package the React dashboard uses): the same
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``Collapse`` / ``Rules Compressed`` typeface, amber-on-dark colour
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tokens (``#170d02`` / ``#ffac02`` / ``#fff``), uppercase + wide-tracking
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brand chrome, and the inset-bevel button shadow. Fonts are served
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out of the SPA's ``/fonts/`` directory which the dashboard-auth gate
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already allowlists pre-auth (see ``_GATE_PUBLIC_PREFIXES`` in
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``middleware.py``), so the page renders without needing the React
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bundle loaded.
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Test-stable class names: the existing test suite extracts the
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``class="provider-btn"`` anchor href to walk the OAuth flow. That
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class name MUST NOT change without updating
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``tests/hermes_cli/test_dashboard_auth_401_reauth.py``.
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"""
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from __future__ import annotations
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import html
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from hermes_cli.dashboard_auth import list_providers
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# Inline minimal CSS. The dashboard's full skin lives in the React
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# bundle, which we deliberately do NOT load here — the login page must
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# not depend on the SPA build being present or on the injected session
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# token.
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#
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# Single curly braces are placeholders for ``str.format``; CSS curlies
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# are doubled (``{{`` / ``}}``).
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_LOGIN_HTML_TEMPLATE = """\
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Sign in — Hermes Agent</title>
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<style>
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/* Brand fonts shipped by @nous-research/ui — same files the SPA loads. */
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@font-face {{
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font-family: 'Collapse';
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font-style: normal;
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font-weight: 400;
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font-display: swap;
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src: url('/fonts/Collapse-Regular.woff2') format('woff2');
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}}
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@font-face {{
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font-family: 'Collapse';
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font-style: normal;
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font-weight: 700;
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font-display: swap;
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src: url('/fonts/Collapse-Bold.woff2') format('woff2');
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}}
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@font-face {{
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font-family: 'Rules Compressed';
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font-style: normal;
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font-weight: 400;
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font-display: swap;
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src: url('/fonts/RulesCompressed-Regular.woff2') format('woff2');
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}}
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@font-face {{
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font-family: 'Rules Compressed';
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font-style: normal;
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font-weight: 600;
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font-display: swap;
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src: url('/fonts/RulesCompressed-Medium.woff2') format('woff2');
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}}
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:root {{
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--background-base: #170d02;
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--background: #170d02;
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--midground: #ffac02;
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--foreground: #ffffff;
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--hairline: color-mix(in srgb, #ffac02 18%, transparent);
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--hairline-strong: color-mix(in srgb, #ffac02 35%, transparent);
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}}
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*, *::before, *::after {{ box-sizing: border-box; }}
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html, body {{
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margin: 0;
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padding: 0;
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min-height: 100%;
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background: var(--background-base);
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color: var(--foreground);
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font-family: 'Collapse', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
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font-size: 16px;
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line-height: 1.5;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}}
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/* Subtle dot-grid backdrop — DS idiom (see `.dither` in globals.css). */
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body {{
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background-image:
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radial-gradient(
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ellipse at top,
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color-mix(in srgb, var(--midground) 6%, transparent) 0%,
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transparent 55%
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),
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repeating-conic-gradient(
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color-mix(in srgb, var(--midground) 4%, transparent) 0% 25%,
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transparent 0% 50%
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);
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background-size: auto, 3px 3px;
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background-attachment: fixed;
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}}
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/* Layout: vertically center on tall screens, top-anchor on short. */
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body {{
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display: grid;
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place-items: center;
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padding: clamp(1.5rem, 6vh, 6rem) 1.25rem;
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}}
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main {{
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width: 100%;
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max-width: 26rem;
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position: relative;
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animation: slide-up 0.6s ease-out both;
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}}
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@keyframes slide-up {{
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from {{ opacity: 0; transform: translateY(6px); }}
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to {{ opacity: 1; transform: translateY(0); }}
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}}
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@media (prefers-reduced-motion: reduce) {{
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main {{ animation: none; }}
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}}
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/* Brand wordmark above the card — same uppercase + wide-tracking
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idiom DS Buttons use. */
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.brand {{
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text-align: center;
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margin-bottom: 1.75rem;
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font-family: 'Rules Compressed', 'Collapse', sans-serif;
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font-weight: 600;
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font-size: 1.05rem;
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letter-spacing: 0.32em;
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text-transform: uppercase;
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color: var(--midground);
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}}
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.brand .dot {{
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display: inline-block;
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width: 6px;
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height: 6px;
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background: var(--midground);
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margin: 0 0.55em 0.18em;
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vertical-align: middle;
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border-radius: 1px;
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}}
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.card {{
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position: relative;
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padding: 2.25rem 2rem 2rem;
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background: color-mix(in srgb, #ffffff 2%, var(--background-base));
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border: 1px solid var(--hairline);
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/* Hairline highlight + bevel shadow — matches DS Button SHADOW_DEFAULT
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(`inset -1px -1px 0 #00000080, inset 1px 1px 0 #ffffff80`) at panel scale. */
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box-shadow:
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inset 1px 1px 0 0 color-mix(in srgb, #ffffff 5%, transparent),
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inset -1px -1px 0 0 rgba(0, 0, 0, 0.4),
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0 24px 60px -20px rgba(0, 0, 0, 0.6);
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}}
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h1 {{
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margin: 0 0 0.4rem;
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font-family: 'Rules Compressed', 'Collapse', sans-serif;
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font-weight: 600;
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font-size: 1.85rem;
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letter-spacing: 0.05em;
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text-transform: uppercase;
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color: var(--foreground);
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}}
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.subtitle {{
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margin: 0 0 1.75rem;
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color: color-mix(in srgb, var(--foreground) 65%, transparent);
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font-size: 0.95rem;
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}}
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.provider-list {{
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display: grid;
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gap: 0.75rem;
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}}
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/* Provider button — mirrors DS Button (default variant):
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amber surface, dark text, uppercase + wide tracking, inset bevel. */
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.provider-btn {{
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display: block;
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width: 100%;
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box-sizing: border-box;
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padding: 0.95rem 1rem;
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text-align: center;
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background: var(--midground);
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color: var(--background-base);
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font-family: 'Collapse', sans-serif;
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font-weight: 700;
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font-size: 0.78rem;
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letter-spacing: 0.2em;
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text-transform: uppercase;
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text-decoration: none;
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border: 0;
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border-radius: 0; /* DS Button is squared — no rounded corners. */
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cursor: pointer;
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box-shadow:
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inset 1px 1px 0 0 rgba(255, 255, 255, 0.5),
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inset -1px -1px 0 0 rgba(0, 0, 0, 0.5);
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transition: filter 0.12s ease-out;
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}}
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.provider-btn:hover {{
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filter: brightness(1.08);
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}}
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.provider-btn:active {{
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/* DS Button uses `active:invert` on the default surface. */
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filter: invert(1);
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}}
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.provider-btn:focus-visible {{
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outline: 2px solid var(--midground);
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outline-offset: 3px;
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}}
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footer {{
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margin-top: 1.75rem;
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text-align: center;
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color: color-mix(in srgb, var(--foreground) 45%, transparent);
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font-size: 0.75rem;
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letter-spacing: 0.1em;
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text-transform: uppercase;
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line-height: 1.7;
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}}
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footer .sep {{
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display: inline-block;
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width: 1.5rem;
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height: 1px;
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background: var(--hairline-strong);
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vertical-align: middle;
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margin: 0 0.6em 0.2em;
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}}
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/* Selection — DS uses midground bg + background text. */
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::selection {{
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background: var(--midground);
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color: var(--background-base);
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}}
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</style>
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</head>
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<body>
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<main>
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<div class="brand">Nous<span class="dot"></span>Research</div>
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<div class="card">
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<h1>Sign in</h1>
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<p class="subtitle">Choose a sign-in method to continue to the Hermes Agent dashboard.</p>
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<div class="provider-list">
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{provider_buttons}
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</div>
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</div>
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<footer>
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<span class="sep"></span>Public bind · Auth required<span class="sep"></span>
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</footer>
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</main>
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</body>
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</html>
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"""
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_EMPTY_HTML = """\
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Sign-in unavailable — Hermes Agent</title>
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<style>
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@font-face {
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font-family: 'Collapse';
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font-style: normal;
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font-weight: 400;
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font-display: swap;
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src: url('/fonts/Collapse-Regular.woff2') format('woff2');
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}
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@font-face {
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font-family: 'Rules Compressed';
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font-style: normal;
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font-weight: 600;
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font-display: swap;
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src: url('/fonts/RulesCompressed-Medium.woff2') format('woff2');
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}
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:root {
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--background-base: #170d02;
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--midground: #ffac02;
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--foreground: #ffffff;
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--hairline: color-mix(in srgb, #ffac02 18%, transparent);
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}
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*, *::before, *::after { box-sizing: border-box; }
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html, body {
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margin: 0; padding: 0; min-height: 100%;
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background: var(--background-base);
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color: var(--foreground);
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font-family: 'Collapse', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
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font-size: 16px; line-height: 1.5;
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-webkit-font-smoothing: antialiased;
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}
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body {
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display: grid; place-items: center;
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padding: clamp(1.5rem, 6vh, 6rem) 1.25rem;
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}
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main {
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width: 100%; max-width: 32rem;
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padding: 2.25rem 2rem;
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background: color-mix(in srgb, #ffffff 2%, var(--background-base));
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border: 1px solid var(--hairline);
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box-shadow:
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inset 1px 1px 0 0 color-mix(in srgb, #ffffff 5%, transparent),
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inset -1px -1px 0 0 rgba(0, 0, 0, 0.4),
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0 24px 60px -20px rgba(0, 0, 0, 0.6);
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}
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h1 {
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margin: 0 0 1rem;
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font-family: 'Rules Compressed', 'Collapse', sans-serif;
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font-weight: 600; font-size: 1.5rem;
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letter-spacing: 0.05em; text-transform: uppercase;
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color: var(--midground);
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}
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p { margin: 0 0 1rem; }
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code {
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background: var(--midground);
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color: var(--background-base);
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padding: 0.1em 0.35em;
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font-family: 'Courier New', monospace;
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font-size: 0.9em;
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}
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</style>
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</head>
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<body>
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<main>
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<h1>Sign-in unavailable</h1>
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<p>This dashboard is bound to a non-loopback host but no authentication
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providers are installed.</p>
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<p>Install <code>plugins/dashboard-auth-nous</code> (default) or another
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auth provider, or restart with <code>--insecure</code> to bypass the
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auth gate (not recommended on untrusted networks).</p>
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</main>
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</body>
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</html>
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"""
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def render_login_html(*, next_path: str = "") -> str:
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"""Return the full HTML for ``GET /login``.
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``next_path`` — when set, the post-login landing path the user
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originally requested. Threaded into each provider button's ``href``
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as a ``next=`` query parameter so the OAuth round trip carries it
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end-to-end. The caller (``routes.login_page``) is responsible for
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validating ``next_path`` against the same-origin rules before we
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emit it; we still HTML-escape it as defence in depth.
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"""
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providers = list_providers()
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if not providers:
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return _EMPTY_HTML
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if next_path:
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# URL-encode then HTML-escape. The URL-encode step matches the
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# gate's ``_safe_next_target`` output shape (also URL-encoded),
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# so a value that round-tripped from /login?next=... back into
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# the button href is byte-identical.
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from urllib.parse import quote
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next_qs = f"&next={html.escape(quote(next_path, safe=''), quote=True)}"
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else:
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next_qs = ""
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buttons = []
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for p in providers:
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buttons.append(
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f' <a class="provider-btn" '
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f'href="/auth/login?provider={html.escape(p.name, quote=True)}{next_qs}">'
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f'Sign in with {html.escape(p.display_name)}</a>'
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)
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return _LOGIN_HTML_TEMPLATE.format(provider_buttons="\n".join(buttons))
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