This commit is contained in:
Harivansh Rathi 2026-03-06 17:40:33 -08:00
parent 48d3e90b8c
commit 6bdf0ec058

View file

@ -1,8 +1,8 @@
import { createServer, type IncomingMessage, type Server, type ServerResponse } from "node:http";
import { join } from "node:path";
import { URL } from "node:url";
import type { ImageContent } from "@mariozechner/pi-ai";
import type { AgentMessage } from "@mariozechner/pi-agent-core";
import type { ImageContent } from "@mariozechner/pi-ai";
import type { AgentSession, AgentSessionEvent } from "./agent-session.js";
import { SessionManager } from "./session-manager.js";
import type { Settings } from "./settings-manager.js";
@ -132,6 +132,15 @@ interface ManagedGatewaySession {
unsubscribe: () => void;
}
class HttpError extends Error {
constructor(
public readonly statusCode: number,
message: string,
) {
super(message);
}
}
let activeGatewayRuntime: GatewayRuntime | null = null;
export function setActiveGatewayRuntime(runtime: GatewayRuntime | null): void {
@ -179,7 +188,10 @@ export class GatewayRuntime {
this.server = createServer((request, response) => {
void this.handleHttpRequest(request, response).catch((error) => {
const message = error instanceof Error ? error.message : String(error);
this.writeJson(response, 500, { error: message });
const statusCode = error instanceof HttpError ? error.statusCode : 500;
if (!response.writableEnded) {
this.writeJson(response, statusCode, { error: message });
}
});
});
@ -293,18 +305,20 @@ export class GatewayRuntime {
const managedSession = this.sessions.get(sessionKey);
if (!managedSession) return;
if (managedSession.processing) {
await managedSession.session.abort();
}
if (sessionKey === this.primarySessionKey) {
this.rejectQueuedMessages(managedSession, "Session reset");
await managedSession.session.newSession();
managedSession.queue.length = 0;
managedSession.processing = false;
managedSession.lastActiveAt = Date.now();
this.emitState(managedSession);
return;
}
if (managedSession.processing) {
await managedSession.session.abort();
}
this.rejectQueuedMessages(managedSession, "Session reset");
managedSession.unsubscribe();
managedSession.session.dispose();
this.sessions.delete(sessionKey);
@ -393,6 +407,26 @@ export class GatewayRuntime {
}
}
private getManagedSessionOrThrow(sessionKey: string): ManagedGatewaySession {
const managedSession = this.sessions.get(sessionKey);
if (!managedSession) {
throw new HttpError(404, `Session not found: ${sessionKey}`);
}
return managedSession;
}
private rejectQueuedMessages(managedSession: ManagedGatewaySession, error: string): void {
const queuedMessages = managedSession.queue.splice(0);
for (const queuedMessage of queuedMessages) {
queuedMessage.resolve({
ok: false,
response: "",
error,
sessionKey: managedSession.sessionKey,
});
}
}
private handleSessionEvent(managedSession: ManagedGatewaySession, event: AgentSessionEvent): void {
switch (event.type) {
case "turn_start":
@ -587,7 +621,7 @@ export class GatewayRuntime {
return;
}
if (method === "POST" && path === "/config") {
if (method === "PATCH" && path === "/config") {
const body = await this.readJsonBody(request);
await this.handlePatchConfig(body);
this.writeJson(response, 200, { ok: true });
@ -606,7 +640,9 @@ export class GatewayRuntime {
return;
}
const sessionMatch = path.match(/^\/sessions\/([^/]+)(?:\/(events|messages|abort|reset|chat|history|model|reload))?$/);
const sessionMatch = path.match(
/^\/sessions\/([^/]+)(?:\/(events|messages|abort|reset|chat|history|model|reload))?$/,
);
if (!sessionMatch) {
this.writeJson(response, 404, { error: "Not found" });
return;
@ -616,7 +652,7 @@ export class GatewayRuntime {
const action = sessionMatch[2];
if (!action && method === "GET") {
const session = await this.ensureSession(sessionKey);
const session = this.getManagedSessionOrThrow(sessionKey);
this.writeJson(response, 200, { session: this.createSnapshot(session) });
return;
}
@ -661,11 +697,13 @@ export class GatewayRuntime {
}
if (action === "abort" && method === "POST") {
this.getManagedSessionOrThrow(sessionKey);
this.writeJson(response, 200, { ok: this.abortSession(sessionKey) });
return;
}
if (action === "reset" && method === "POST") {
this.getManagedSessionOrThrow(sessionKey);
await this.resetSession(sessionKey);
this.writeJson(response, 200, { ok: true });
return;
@ -837,7 +875,11 @@ export class GatewayRuntime {
return {};
}
const body = Buffer.concat(chunks).toString("utf8");
return JSON.parse(body) as Record<string, unknown>;
try {
return JSON.parse(body) as Record<string, unknown>;
} catch {
throw new HttpError(400, "Invalid JSON body");
}
}
private writeJson(response: ServerResponse, statusCode: number, payload: unknown): void {
@ -850,16 +892,16 @@ export class GatewayRuntime {
// New handler methods added for companion-cloud web app integration
// ---------------------------------------------------------------------------
private async handleGetModels(): Promise<{ models: ModelInfo[]; current: { provider: string; modelId: string } | null }> {
private async handleGetModels(): Promise<{
models: ModelInfo[];
current: { provider: string; modelId: string } | null;
}> {
const available = this.primarySession.modelRegistry.getAvailable();
const models: ModelInfo[] = available.map((m) => ({
provider: m.provider,
modelId: m.id,
displayName: m.name,
capabilities: [
...(m.reasoning ? ["reasoning"] : []),
...(m.input.includes("image") ? ["vision"] : []),
],
capabilities: [...(m.reasoning ? ["reasoning"] : []), ...(m.input.includes("image") ? ["vision"] : [])],
}));
const currentModel = this.primarySession.model;
const current = currentModel ? { provider: currentModel.provider, modelId: currentModel.id } : null;
@ -871,23 +913,20 @@ export class GatewayRuntime {
provider: string,
modelId: string,
): Promise<{ ok: true; model: { provider: string; modelId: string } }> {
const managed = this.sessions.get(sessionKey);
if (!managed) {
throw new Error(`Session not found: ${sessionKey}`);
}
const managed = this.getManagedSessionOrThrow(sessionKey);
const found = managed.session.modelRegistry.find(provider, modelId);
if (!found) {
throw new Error(`Model not found: ${provider}/${modelId}`);
throw new HttpError(404, `Model not found: ${provider}/${modelId}`);
}
await managed.session.setModel(found);
return { ok: true, model: { provider, modelId } };
}
private handleGetHistory(sessionKey: string, limit?: number): HistoryMessage[] {
const managed = this.sessions.get(sessionKey);
if (!managed) {
return [];
if (limit !== undefined && (!Number.isFinite(limit) || limit < 1)) {
throw new HttpError(400, "History limit must be a positive integer");
}
const managed = this.getManagedSessionOrThrow(sessionKey);
const rawMessages = managed.session.messages;
const messages: HistoryMessage[] = [];
for (const msg of rawMessages) {
@ -905,27 +944,26 @@ export class GatewayRuntime {
}
private async handlePatchSession(sessionKey: string, patch: { name?: string }): Promise<void> {
const managed = this.sessions.get(sessionKey);
if (!managed) {
throw new Error(`Session not found: ${sessionKey}`);
}
const managed = this.getManagedSessionOrThrow(sessionKey);
if (patch.name !== undefined) {
// Labels in pi-mono are per-entry; we label the current leaf entry
const leafId = managed.session.sessionManager.getLeafId?.();
if (leafId) {
managed.session.sessionManager.appendLabelChange(leafId, patch.name);
const leafId = managed.session.sessionManager.getLeafId();
if (!leafId) {
throw new HttpError(409, `Cannot rename session without an active leaf entry: ${sessionKey}`);
}
managed.session.sessionManager.appendLabelChange(leafId, patch.name);
}
}
private async handleDeleteSession(sessionKey: string): Promise<void> {
if (sessionKey === this.primarySessionKey) {
throw new Error("Cannot delete primary session");
throw new HttpError(400, "Cannot delete primary session");
}
const managed = this.sessions.get(sessionKey);
if (!managed) {
throw new Error(`Session not found: ${sessionKey}`);
const managed = this.getManagedSessionOrThrow(sessionKey);
if (managed.processing) {
await managed.session.abort();
}
this.rejectQueuedMessages(managed, `Session deleted: ${sessionKey}`);
managed.unsubscribe();
managed.session.dispose();
this.sessions.delete(sessionKey);
@ -934,8 +972,16 @@ export class GatewayRuntime {
private getPublicConfig(): Record<string, unknown> {
const settings = this.primarySession.settingsManager.getGlobalSettings();
const { gateway, ...rest } = settings as Record<string, unknown> & { gateway?: Record<string, unknown> };
const { bearerToken: _bearerToken, ...safeGateway } = gateway ?? {};
return { ...rest, gateway: safeGateway };
const { bearerToken: _bearerToken, webhook, ...safeGatewayRest } = gateway ?? {};
const { secret: _secret, ...safeWebhook } =
webhook && typeof webhook === "object" ? (webhook as Record<string, unknown>) : {};
return {
...rest,
gateway: {
...safeGatewayRest,
...(webhook && typeof webhook === "object" ? { webhook: safeWebhook } : {}),
},
};
}
private async handlePatchConfig(patch: Record<string, unknown>): Promise<void> {
@ -954,10 +1000,7 @@ export class GatewayRuntime {
}
private async handleReloadSession(sessionKey: string): Promise<void> {
const managed = this.sessions.get(sessionKey);
if (!managed) {
throw new Error(`Session not found: ${sessionKey}`);
}
const managed = this.getManagedSessionOrThrow(sessionKey);
// Reloading config by calling settingsManager.reload() on the session
managed.session.settingsManager.reload();
}
@ -970,7 +1013,9 @@ export class GatewayRuntime {
}
if (Array.isArray(content)) {
return content
.filter((c): c is { type: "text"; text: string } => typeof c === "object" && c !== null && c.type === "text")
.filter(
(c): c is { type: "text"; text: string } => typeof c === "object" && c !== null && c.type === "text",
)
.map((c) => ({ type: "text" as const, text: c.text }));
}
return [];
@ -1001,7 +1046,13 @@ export class GatewayRuntime {
}
if (msg.role === "toolResult") {
const tr = msg as { role: "toolResult"; toolCallId: string; toolName: string; content: unknown; isError: boolean };
const tr = msg as {
role: "toolResult";
toolCallId: string;
toolName: string;
content: unknown;
isError: boolean;
};
const textParts = Array.isArray(tr.content)
? (tr.content as { type: string; text?: string }[])
.filter((c) => c.type === "text" && typeof c.text === "string")