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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | 4x 4x 40x 40x 40x 40x 40x 40x 40x 30x 30x 30x 30x 30x 30x 30x 30x 30x 30x 10x 10x 10x 10x 10x 10x 10x 4x 40x 10x 10x 2x 30x 30x 3x | import { getIngressBaseHost, WorkerEnv } from '../env'
import {
addProxyIntegrationHeaders,
addTrafficMonitoringSearchParamsForVisitorIdRequest,
createErrorResponseForIngress,
filterCookies,
getVisitorIdEndpoint,
createFallbackErrorResponse,
} from '../utils'
function copySearchParams(oldURL: URL, newURL: URL): void {
newURL.search = new URLSearchParams(oldURL.search).toString()
}
function createRequestURL(
ingressBaseUrl: string,
receivedRequestURL: string,
routeMatches: RegExpMatchArray | undefined
) {
const routeSuffix = routeMatches ? routeMatches[1] : undefined
const oldURL = new URL(receivedRequestURL)
const endpoint = getVisitorIdEndpoint(ingressBaseUrl, oldURL.searchParams, routeSuffix)
const newURL = new URL(endpoint)
copySearchParams(oldURL, newURL)
return newURL
}
async function makeIngressRequest(
receivedRequest: Request,
env: WorkerEnv,
routeMatches: RegExpMatchArray | undefined
) {
const ingressBaseUrl = getIngressBaseHost(env)!
const requestURL = createRequestURL(ingressBaseUrl, receivedRequest.url, routeMatches)
addTrafficMonitoringSearchParamsForVisitorIdRequest(requestURL)
let headers = new Headers(receivedRequest.headers)
headers = filterCookies(headers, (key) => key === '_iidt')
addProxyIntegrationHeaders(headers, receivedRequest.url, env)
const body = await (receivedRequest.headers.get('Content-Type') ? receivedRequest.blob() : Promise.resolve(null))
console.log(`sending ingress request to ${requestURL}...`)
const request = new Request(requestURL, new Request(receivedRequest, { headers, body }))
return fetch(request).then((oldResponse) => new Response(oldResponse.body, oldResponse))
}
function makeCacheEndpointRequest(
receivedRequest: Request,
env: WorkerEnv,
routeMatches: RegExpMatchArray | undefined
) {
const ingressBaseUrl = getIngressBaseHost(env)!
const requestURL = createRequestURL(ingressBaseUrl, receivedRequest.url, routeMatches)
const headers = new Headers(receivedRequest.headers)
headers.delete('Cookie')
console.log(`sending cache request to ${requestURL}...`)
const request = new Request(requestURL, new Request(receivedRequest, { headers }))
return fetch(request).then((oldResponse) => new Response(oldResponse.body, oldResponse))
}
export async function handleIngressAPI(request: Request, env: WorkerEnv, routeMatches: RegExpMatchArray | undefined) {
if (request.method === 'GET') {
try {
return await makeCacheEndpointRequest(request, env, routeMatches)
} catch (e) {
return createFallbackErrorResponse(e)
}
}
try {
return await makeIngressRequest(request, env, routeMatches)
} catch (e) {
return createErrorResponseForIngress(request, e)
}
}
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