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feat(provider): add GitHub Copilot provider with device-flow auth (#1480)

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* feat(provider): add GitHub Copilot provider with device-flow auth

Adds GitHub Copilot as a model provider, so Copilot models (gpt-4o/4.1/5,
Claude, Gemini, …) work through the normal chat + agent loop, incl. native
tool calling and vision.

Auth is one-click via the GitHub OAuth device flow; the access token is stored
as the endpoint's (encrypted) api_key and sent directly as `Authorization:
Bearer` (no Copilot-token exchange, no refresh — matching how editors talk to
the Copilot API). Copilot is a normal ModelEndpoint detected by host; the only
provider-specific behaviour is a small set of required request headers,
injected centrally.

Sign-in is available from Settings → model endpoints ("Connect GitHub
Copilot") and from chat via `/setup copilot`.

- src/copilot.py (new), routes/copilot_routes.py (new): constants, header
  builders, device-flow start/poll, model discovery, owner-scoped endpoint
  provisioning.
- src/llm_core.py, src/endpoint_resolver.py: detect `copilot`, inject headers,
  per-request x-initiator/vision.
- src/agent_loop.py: allowlist api.githubcopilot.com for native tool schemas.
- src/model_context.py: known context windows for Copilot (no unauthenticated
  /models probe).
- static/, README, tests/test_copilot*.py.

* Tidy copilot_routes: clarify supports_tools, note _PENDING is per-process
This commit is contained in:
Kenny Van de Maele
2026-06-04 21:13:14 +02:00
committed by GitHub
parent ca32b43b38
commit 1cd0aa2b8c
14 changed files with 946 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
static/index.html
View File

@@ -2092,6 +2092,13 @@
<button class="admin-btn-add" id="adm-epAddBtn" style="width:55px;text-align:center;">Add</button>
</div>
<div id="adm-epApiMsg" class="adm-ep-inline-msg"></div>
<div class="adm-copilot-connect">
<button class="admin-btn-sm" id="adm-copilotConnectBtn" type="button" title="Sign in to GitHub Copilot via device flow">
<svg width="13" height="13" viewBox="0 0 24 24" fill="currentColor" style="vertical-align:-2px;margin-right:5px;opacity:0.8"><path d="M12 .5C5.7.5.5 5.7.5 12c0 5.1 3.3 9.4 7.9 10.9.6.1.8-.2.8-.5v-1.7c-3.2.7-3.9-1.5-3.9-1.5-.5-1.3-1.3-1.7-1.3-1.7-1.1-.7.1-.7.1-.7 1.2.1 1.8 1.2 1.8 1.2 1 1.8 2.7 1.3 3.4 1 .1-.8.4-1.3.7-1.6-2.6-.3-5.3-1.3-5.3-5.7 0-1.3.4-2.3 1.2-3.1-.1-.3-.5-1.5.1-3.1 0 0 1-.3 3.3 1.2a11.4 11.4 0 0 1 6 0C17.3 4.7 18.3 5 18.3 5c.6 1.6.2 2.8.1 3.1.8.8 1.2 1.8 1.2 3.1 0 4.4-2.7 5.4-5.3 5.7.4.4.8 1.1.8 2.2v3.3c0 .3.2.6.8.5 4.6-1.5 7.9-5.8 7.9-10.9C23.5 5.7 18.3.5 12 .5z"/></svg>
Connect GitHub Copilot
</button>
<div id="adm-copilotStatus" class="adm-ep-inline-msg"></div>
</div>
</div>
</div>
</div>

72
static/js/admin.js
View File

@@ -912,6 +912,78 @@ function initEndpointForm() {
btn.disabled = false; btn.textContent = 'Add';
});
// GitHub Copilot — device-flow login. Starts the flow, shows the user a
// code + verification link, and polls until they authorise (or it expires).
const copilotBtn = el('adm-copilotConnectBtn');
if (copilotBtn) {
let copilotPolling = false;
copilotBtn.addEventListener('click', async () => {
if (copilotPolling) return;
const status = el('adm-copilotStatus');
const reset = () => { copilotBtn.disabled = false; copilotBtn.textContent = 'Connect GitHub Copilot'; copilotPolling = false; };
status.textContent = ''; status.className = 'adm-ep-inline-msg';
copilotBtn.disabled = true; copilotBtn.textContent = 'Starting...';
copilotPolling = true;
let start;
try {
const res = await fetch('/api/copilot/device/start', { method: 'POST', body: new FormData(), credentials: 'same-origin' });
start = await res.json();
if (!res.ok) { status.textContent = start.detail || 'Failed to start login'; status.className = 'admin-error'; reset(); return; }
} catch (e) { status.textContent = 'Request failed'; status.className = 'admin-error'; reset(); return; }
const { poll_id, user_code, verification_uri, verification_uri_complete, interval, expires_in } = start;
// Prefer the "complete" URL — it embeds the code so the user only has to
// click "Authorize" (no manual code entry).
const authUrl = verification_uri_complete || verification_uri || '';
const esc = (s) => String(s || '').replace(/[<>&"]/g, (c) => ({ '<': '&lt;', '>': '&gt;', '&': '&amp;', '"': '&quot;' }[c]));
copilotBtn.textContent = 'Waiting…';
// Cohesive waiting panel: spinner + status line, the device code as a
// copyable chip, and a primary "Authorize on GitHub" action.
status.className = '';
status.innerHTML =
'<div class="adm-copilot-panel">' +
'<div class="adm-copilot-wait"><span class="admin-spinner"></span>' +
'<span>Waiting for GitHub authorization…</span></div>' +
'<div class="adm-copilot-coderow">' +
'<span class="adm-copilot-code-label">Code</span>' +
'<code class="adm-copilot-code">' + esc(user_code) + '</code>' +
'<button type="button" class="admin-btn-sm adm-copilot-copy">Copy</button>' +
'</div>' +
'<a class="admin-btn-add adm-copilot-auth" href="' + encodeURI(authUrl) + '" target="_blank" rel="noopener">Authorize on GitHub ↗</a>' +
'<div class="adm-copilot-hint">A new tab opened on GitHub — approve there to finish. Didn\'t open? Use the button above.</div>' +
'</div>';
const copyBtn = status.querySelector('.adm-copilot-copy');
if (copyBtn) copyBtn.addEventListener('click', async () => {
try { await navigator.clipboard.writeText(user_code || ''); copyBtn.textContent = 'Copied'; setTimeout(() => { copyBtn.textContent = 'Copy'; }, 1500); } catch (e) {}
});
try { if (authUrl) window.open(authUrl, '_blank', 'noopener'); } catch (e) {}
const deadline = Date.now() + (expires_in || 900) * 1000;
const stepMs = Math.max((interval || 5), 2) * 1000;
const done = (cls, text) => { status.className = cls; status.textContent = text; reset(); };
const poll = async () => {
if (Date.now() > deadline) { done('admin-error', 'Authorization expired — try again.'); return; }
try {
const fd = new FormData(); fd.append('poll_id', poll_id);
const r = await fetch('/api/copilot/device/poll', { method: 'POST', body: fd, credentials: 'same-origin' });
const d = await r.json();
if (d.status === 'authorized') {
const n = ((d.endpoint && d.endpoint.models) || []).length;
done('admin-success', '✓ Connected — ' + n + ' Copilot model' + (n !== 1 ? 's' : '') + ' available.');
if (d.endpoint && d.endpoint.id) _recentlyAddedEpId = String(d.endpoint.id);
await loadEndpoints();
await _selectAddedModelInChat(d.endpoint || {});
return;
}
if (d.status === 'failed') { done('admin-error', 'Authorization failed (' + (d.error || 'denied') + ').'); return; }
} catch (e) { /* transient — keep polling */ }
setTimeout(poll, stepMs);
};
setTimeout(poll, stepMs);
});
}
// Local "Add" button — sibling form for self-hosted base URLs.
const localAddBtn = el('adm-epLocalAddBtn');
const localTestBtn = el('adm-epLocalTestBtn');

38
static/js/slashCommands.js
View File

@@ -4735,11 +4735,47 @@ function _clearSetupCommandInput() {
}
}
// GitHub Copilot device-flow sign-in, driven from chat (mirrors the Settings
// "Connect GitHub Copilot" button). Replies via the setup guide messages.
async function _setupCopilot() {
_clearSetupGuideMessages();
await _setupReply('Starting GitHub Copilot sign-in…');
let start;
try {
const r = await fetch(`${API_BASE}/api/copilot/device/start`, { method: 'POST', body: new FormData(), credentials: 'same-origin' });
start = await r.json();
if (!r.ok) { await _setupReply(start.detail || 'Failed to start Copilot sign-in.'); return; }
} catch (e) { await _setupReply('Request failed.'); return; }
const authUrl = start.verification_uri_complete || start.verification_uri || '';
await _setupReply(`Opening GitHub — approve the request (code ${start.user_code}). Waiting…`);
try { if (authUrl) window.open(authUrl, '_blank', 'noopener'); } catch (e) {}
const deadline = Date.now() + (start.expires_in || 900) * 1000;
const stepMs = Math.max((start.interval || 5), 2) * 1000;
const poll = async () => {
if (Date.now() > deadline) { await _setupReply('Copilot sign-in expired — run /setup copilot again.'); return; }
try {
const fd = new FormData(); fd.append('poll_id', start.poll_id);
const r = await fetch(`${API_BASE}/api/copilot/device/poll`, { method: 'POST', body: fd, credentials: 'same-origin' });
const d = await r.json();
if (d.status === 'authorized') {
const n = ((d.endpoint && d.endpoint.models) || []).length;
await _setupReply(`Connected — ${n} Copilot model${n !== 1 ? 's' : ''} available.`);
if (modelsModule) modelsModule.refreshModels(true);
return;
}
if (d.status === 'failed') { await _setupReply('Copilot sign-in failed (' + (d.error || 'denied') + ').'); return; }
} catch (e) { /* transient — keep polling */ }
setTimeout(poll, stepMs);
};
setTimeout(poll, stepMs);
}
async function _cmdSetup(args, ctx) {
_hideWelcomeScreen();
_clearSetupCommandInput();
const topic = (args[0] || '').trim().toLowerCase();
const topicArgs = args.slice(1);
if (topic === 'copilot' || topic === 'github') { await _setupCopilot(); return true; }
const provider = _setupProviderFromInput(topic);
if (provider) {
_clearSetupGuideMessages();
@@ -5464,7 +5500,7 @@ const COMMANDS = {
category: 'Getting started',
help: 'Add local or API model endpoints',
handler: _cmdSetup,
usage: '/setup local URL · /setup groq KEY · /setup endpoint'
usage: '/setup local URL · /setup groq KEY · /setup copilot · /setup endpoint'
},
demo: {
alias: ['tour'],

63
static/style.css
View File

@@ -35782,3 +35782,66 @@ body.theme-frosted .modal {
is already ≥16px and never zoomed — leave it so we don't shrink it. */
.doc-email-richbody.doc-font-m { font-size: 16px !important; }
}
/* GitHub Copilot device-flow connect block (model endpoints → API) */
.adm-copilot-connect {
margin-top: 10px;
padding-top: 10px;
border-top: 1px solid var(--border);
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 8px;
}
.adm-copilot-connect #adm-copilotStatus { flex-basis: 100%; margin-top: 0; }
.adm-copilot-panel {
display: flex;
flex-direction: column;
gap: 8px;
padding: 10px;
background: var(--bg);
border: 1px solid var(--border);
border-radius: 8px;
}
.adm-copilot-wait {
display: flex;
align-items: center;
gap: 6px;
font-size: 12px;
color: color-mix(in srgb, var(--fg) 70%, transparent);
}
.adm-copilot-coderow {
display: flex;
align-items: center;
gap: 8px;
}
.adm-copilot-code-label {
font-size: 10px;
text-transform: uppercase;
letter-spacing: 0.06em;
color: color-mix(in srgb, var(--fg) 45%, transparent);
}
.adm-copilot-code {
font-family: var(--mono, ui-monospace, monospace);
font-size: 14px;
font-weight: 600;
letter-spacing: 0.12em;
padding: 4px 10px;
background: var(--panel);
border: 1px solid var(--border);
border-radius: 6px;
color: var(--fg);
user-select: all;
}
.adm-copilot-copy { margin-left: auto; }
.adm-copilot-auth {
text-align: center;
text-decoration: none;
padding: 7px 12px;
font-size: 12px;
}
.adm-copilot-hint {
font-size: 11px;
line-height: 1.4;
color: color-mix(in srgb, var(--fg) 45%, transparent);
}