122 lines
3.4 KiB
TypeScript
122 lines
3.4 KiB
TypeScript
import { type Got, HTTPError, RequestError } from "got";
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import { AdvancedMatcher } from "@/service/infrastructure/network/AdvancedMatcher.js";
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import { IStatusProvider } from "@/service/infrastructure/network/IStatusProvider.js";
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import { HttpStatusPayload } from "@/types/network.js";
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import { MonitorStatusResponse } from "@/types/network.js";
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import { Agent as HttpsAgent } from "https";
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import { Monitor, MonitorType } from "@/types/monitor.js";
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import { NETWORK_ERROR } from "@/service/infrastructure/network/utils.js";
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import CacheableLookup from "cacheable-lookup";
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export class HttpProvider implements IStatusProvider<HttpStatusPayload> {
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readonly type = "http";
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constructor(
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private got: Got,
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private advancedMatcher: AdvancedMatcher
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) {
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const cacheable = new CacheableLookup();
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this.got = got.extend({
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dnsCache: cacheable,
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timeout: {
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request: 30000,
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},
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retry: { limit: 1 },
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});
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}
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supports(type: MonitorType) {
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return type === "http";
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}
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private handleHttpError<T>(error: unknown, monitor: Monitor): MonitorStatusResponse<T> {
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if (error instanceof HTTPError || error instanceof RequestError) {
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return {
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monitorId: monitor.id,
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teamId: monitor.teamId,
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type: monitor.type,
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status: false,
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code: error.response?.statusCode ?? NETWORK_ERROR,
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message: error.message,
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responseTime: error.timings?.phases?.total ?? 0,
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timings: error.timings,
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payload: null as T,
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};
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}
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return {
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monitorId: monitor.id,
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teamId: monitor.teamId,
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type: monitor.type,
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status: false,
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code: NETWORK_ERROR,
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message: error instanceof Error ? error.message : String(error),
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responseTime: 0,
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payload: null as T,
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};
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}
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async handle<T>(monitor: Monitor): Promise<MonitorStatusResponse<T>> {
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const { url, secret, jsonPath, ignoreTlsErrors } = monitor;
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if (!url) {
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throw new Error("URL is required for HTTP monitor");
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}
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const options: Record<string, unknown> = {
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headers: monitor.secret ? { Authorization: `Bearer ${secret}` } : undefined,
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};
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options.agent = {
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https: new HttpsAgent({ rejectUnauthorized: !ignoreTlsErrors }),
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};
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try {
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const response = await this.got<string>(url, options);
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const contentType = response.headers["content-type"] || "";
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const isJson = contentType.includes("application/json");
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if (jsonPath && !isJson) {
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return {
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monitorId: monitor.id,
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teamId: monitor.teamId,
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type: monitor.type,
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status: false,
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code: response.statusCode,
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message: "Response is not JSON",
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responseTime: response.timings.phases.total ?? 0,
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timings: response.timings,
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payload: response.body as unknown as T,
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};
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}
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let payload: T;
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if (isJson) {
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try {
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payload = JSON.parse(response.body) as T;
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} catch {
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payload = response.body as unknown as T;
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}
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} else {
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payload = response.body as unknown as T;
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}
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const matchResult = this.advancedMatcher.validate<T>(payload, monitor);
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return {
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monitorId: monitor.id,
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teamId: monitor.teamId,
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type: monitor.type,
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status: response.ok && matchResult.ok,
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code: response.statusCode,
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message: matchResult.ok ? (response.statusMessage ?? "OK") : matchResult.message,
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responseTime: response.timings.phases.total ?? 0,
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timings: response.timings,
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payload,
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extracted: matchResult.extracted,
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};
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} catch (error: unknown) {
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return this.handleHttpError(error, monitor);
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}
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}
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}
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