forked from Selig/openclaw-skill
131 lines
4.1 KiB
TypeScript
131 lines
4.1 KiB
TypeScript
/**
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* dispatch-webhook skill
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* 發送 Webhook 到 VPS，處理重試與錯誤
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*/
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interface DispatchInput {
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target: 'vps-a' | 'vps-b';
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payload: Record<string, unknown>;
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webhookUrl: string;
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webhookToken: string;
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timeoutMs?: number;
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retries?: number;
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}
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const ALLOWED_TARGETS = new Set<DispatchInput['target']>(['vps-a', 'vps-b']);
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function clampInt(value: unknown, min: number, max: number, fallback: number): number {
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const n = Number(value);
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if (!Number.isFinite(n)) return fallback;
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return Math.min(max, Math.max(min, Math.floor(n)));
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}
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function sanitizeTaskId(taskId: unknown): string {
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if (taskId == null) return '';
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return String(taskId).replace(/[\r\n]/g, '').slice(0, 128);
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}
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function validateInput(raw: any): DispatchInput {
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const input = raw as Partial<DispatchInput>;
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if (!input || typeof input !== 'object') {
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throw new Error('dispatch-webhook 輸入格式錯誤：必須提供 input 物件');
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}
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if (!input.target || !ALLOWED_TARGETS.has(input.target as DispatchInput['target'])) {
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throw new Error('dispatch-webhook 參數錯誤：target 必須是 vps-a 或 vps-b');
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}
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if (!input.webhookUrl || typeof input.webhookUrl !== 'string') {
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throw new Error(`${input.target.toUpperCase()} Webhook URL 未設定。請在環境變數設定 VPS_A_WEBHOOK_URL 或 VPS_B_WEBHOOK_URL`);
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}
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let parsedUrl: URL;
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try {
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parsedUrl = new URL(input.webhookUrl);
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} catch {
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throw new Error('Webhook URL 格式錯誤，請提供有效的 http/https URL');
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}
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if (!['http:', 'https:'].includes(parsedUrl.protocol)) {
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throw new Error('Webhook URL 協定不支援，僅允許 http 或 https');
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}
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if (!input.webhookToken || typeof input.webhookToken !== 'string') {
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throw new Error(`${input.target.toUpperCase()} Webhook Token 未設定`);
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}
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if (!input.payload || typeof input.payload !== 'object' || Array.isArray(input.payload)) {
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throw new Error('dispatch-webhook 參數錯誤：payload 必須是 JSON 物件');
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}
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return input as DispatchInput;
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}
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async function fetchWithTimeout(url: string, options: RequestInit, timeoutMs: number): Promise<Response> {
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const controller = new AbortController();
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const timer = setTimeout(() => controller.abort(), timeoutMs);
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try {
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return await fetch(url, { ...options, signal: controller.signal });
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} finally {
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clearTimeout(timer);
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}
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}
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export async function handler(ctx: any) {
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const input = validateInput(ctx.input || ctx.params);
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const timeoutMs = clampInt(input.timeoutMs, 1000, 120000, 30000);
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const maxRetries = clampInt(input.retries, 1, 5, 3);
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const taskIdHeader = sanitizeTaskId(input.payload.task_id);
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let lastError: Error | null = null;
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for (let attempt = 1; attempt <= maxRetries; attempt++) {
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try {
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const response = await fetchWithTimeout(
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input.webhookUrl,
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{
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'Authorization': `Bearer ${input.webhookToken}`,
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'X-OpenClaw-Version': '1.0',
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'X-OpenClaw-Task-Id': taskIdHeader,
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},
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body: JSON.stringify(input.payload),
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},
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timeoutMs
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);
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if (response.status === 401) {
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throw new Error('Webhook Token 驗證失敗（401），請確認 VPS_WEBHOOK_TOKEN 設定正確');
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}
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if (!response.ok && response.status !== 202) {
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const body = await response.text().catch(() => '');
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throw new Error(`VPS 回應錯誤 ${response.status}：${body.slice(0, 200)}`);
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}
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const result = await response.json().catch(() => ({ status: 'accepted' }));
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return {
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success: true,
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status: result.status || 'accepted',
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task_id: input.payload.task_id,
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target: input.target,
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attempt,
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};
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} catch (err: any) {
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lastError = err instanceof Error ? err : new Error(String(err));
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if (lastError.message.includes('401') || lastError.message.includes('Token')) {
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break; // 認證錯誤不重試
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}
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if (attempt < maxRetries) {
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await new Promise(r => setTimeout(r, 5000 * attempt)); // 指數退避
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}
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}
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}
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throw lastError || new Error('Webhook 發送失敗');
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}
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