Files
OmniRoute/open-sse/services/sessionPool/sessionFactory.ts
Praveen K Palaniswamy 65e81158ab fix(ollama): route models by advertised capability (#11088)
Landed with the design call resolved per the owner's pick — **option 1**: the synced store is now endpoint-agnostic (persistDiscoveredModels and managedModelImport no longer drop non-chat models at write time), and chat selectability moved to read time (auto-pool expansion in autoStrategy applies filterChatSelectableModels; the models-route projection already had its chatOnly filter). Your discovery test now passes end-to-end (3/3): /api/show capabilities persist per connection and image/embedding requests route through the advertising host.

Reconciliation notes: conflicted areas merged onto the current tip (adobe discovery import, requestedModel preflight signature, resolvedProvider fast-path coexists with the synced-route override — explicit resolution wins); carried base-red drains (#10055 memoization, #11071 test variants) dropped as already-landed; the managed-model-import exclusion test was propagated to the new contract (image/video models persist; the read filter still hides them from chat pickers — pinned by a new assertion). Full battery: 205/206 focused (the one red is a confirmed periodic-timer timing flake on the loaded devbox — 20/20 isolated), autoCombo vitest 30/30, combo suites 46/46, gates + typecheck clean.

Thank you @yourspraveen — the capability probe + routing design was right; it just needed the store contract opened up. Fixes #11087.
2026-08-23 11:45:01 -03:00

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1.7 KiB
TypeScript

/**
* SessionFactory — Creates initialized Session instances
*
* For zero-auth providers (Pollinations): just assigns a fingerprint.
* For cookie-based providers (ChatGPT Web, DeepSeek Web): would launch
* headless Playwright, solve Turnstile, and extract cookies.
*
* Currently only zero-auth is implemented. Cookie-based provider support
* is planned for Phase 3.
*/
import { FingerprintRotator } from "./fingerprintRotator.ts";
import { Session } from "./session.ts";
import type { PoolConfig } from "./types.ts";
export class SessionFactory {
private rotator = new FingerprintRotator();
constructor(private config: PoolConfig) {}
/**
* Create a new session with the next available fingerprint.
* For zero-auth providers, this is a lightweight operation
* (just picks a fingerprint). For cookie-based providers this
* would involve Playwright browser automation.
*/
createSession(): Session {
// Round-robin so each session in a warm pool gets a distinct fingerprint
// (a pool of look-alike sessions defeats the purpose). The rotator still
// exposes random() for callers that want unpredictability over time.
const fingerprint = this.rotator.next();
return new Session(
fingerprint,
this.config.cooldownBase,
this.config.cooldownMax,
this.config.cooldownJitter
);
}
/** Reset the fingerprint rotator (e.g., after config change) */
resetRotator(): void {
this.rotator.reset();
}
/** Number of available fingerprint profiles */
get profileCount(): number {
return this.rotator.count;
}
/** Build headers from session fingerprint */
buildHeaders(session: Session, extra?: Record<string, string>): Record<string, string> {
return session.buildHeaders(extra);
}
}