Files
clawdbot/src/sessions/send-policy.ts
2026-01-06 18:33:37 +00:00

80 lines
2.6 KiB
TypeScript

import type { ClawdbotConfig } from "../config/config.js";
import type { SessionChatType, SessionEntry } from "../config/sessions.js";
export type SessionSendPolicyDecision = "allow" | "deny";
export function normalizeSendPolicy(
raw?: string | null,
): SessionSendPolicyDecision | undefined {
const value = raw?.trim().toLowerCase();
if (value === "allow") return "allow";
if (value === "deny") return "deny";
return undefined;
}
function normalizeMatchValue(raw?: string | null) {
const value = raw?.trim().toLowerCase();
return value ? value : undefined;
}
function deriveProviderFromKey(key?: string) {
if (!key) return undefined;
const parts = key.split(":").filter(Boolean);
if (parts.length >= 3 && (parts[1] === "group" || parts[1] === "channel")) {
return normalizeMatchValue(parts[0]);
}
return undefined;
}
function deriveChatTypeFromKey(key?: string): SessionChatType | undefined {
if (!key) return undefined;
if (key.startsWith("group:") || key.includes(":group:")) return "group";
if (key.includes(":channel:")) return "room";
return undefined;
}
export function resolveSendPolicy(params: {
cfg: ClawdbotConfig;
entry?: SessionEntry;
sessionKey?: string;
provider?: string;
chatType?: SessionChatType;
}): SessionSendPolicyDecision {
const override = normalizeSendPolicy(params.entry?.sendPolicy);
if (override) return override;
const policy = params.cfg.session?.sendPolicy;
if (!policy) return "allow";
const provider =
normalizeMatchValue(params.provider) ??
normalizeMatchValue(params.entry?.provider) ??
normalizeMatchValue(params.entry?.lastProvider) ??
deriveProviderFromKey(params.sessionKey);
const chatType =
normalizeMatchValue(params.chatType ?? params.entry?.chatType) ??
normalizeMatchValue(deriveChatTypeFromKey(params.sessionKey));
const sessionKey = params.sessionKey ?? "";
let allowedMatch = false;
for (const rule of policy.rules ?? []) {
if (!rule) continue;
const action = normalizeSendPolicy(rule.action) ?? "allow";
const match = rule.match ?? {};
const matchProvider = normalizeMatchValue(match.provider);
const matchChatType = normalizeMatchValue(match.chatType);
const matchPrefix = normalizeMatchValue(match.keyPrefix);
if (matchProvider && matchProvider !== provider) continue;
if (matchChatType && matchChatType !== chatType) continue;
if (matchPrefix && !sessionKey.startsWith(matchPrefix)) continue;
if (action === "deny") return "deny";
allowedMatch = true;
}
if (allowedMatch) return "allow";
const fallback = normalizeSendPolicy(policy.default);
return fallback ?? "allow";
}