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IntegrationEnv,
isScriptDownloadPathSet,
isGetResultPathSet,
isProxySecretSet,
agentScriptDownloadPathVarName,
getResultPathVarName,
proxySecretVarName,
} from '../env'
import packageJson from '../../package.json' with { type: 'json' }
import { env } from 'fastly:env'
import { Backend } from 'fastly:backend'
function generateNonce() {
let result = ''
const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
const indices = crypto.getRandomValues(new Uint8Array(24))
for (const index of indices) {
result += characters[index % characters.length]
}
return btoa(result)
}
function buildHeaders(styleNonce: string): Headers {
const headers = new Headers()
headers.append('Content-Type', 'text/html')
headers.append(
'Content-Security-Policy',
`default-src 'none'; img-src https://fingerprint.com; style-src 'nonce-${styleNonce}'`
)
return headers
}
function createVersionElement(): string {
const fastlyServiceVersion = env('FASTLY_SERVICE_VERSION')
let result = ''
result += '<ul>'
result += `
<li>
ℹ️ Integration version: <strong>${packageJson.version}</strong>
</li>
<li>
ℹ️ Fastly Compute Service version: <strong>${fastlyServiceVersion}</strong>
</li>
`
result += getBackendsInformation()
result += '</ul>'
return result
}
export function getBackendsInformation(): string {
let information = ''
if (Backend.exists('fingerprint')) {
information += '<li>ℹ️ Fingerprint backend is configured ✅</li>'
return information
}
// backward compat: region-named backends
const usResultBackend = Backend.exists('api.fpjs.io')
const euResultBackend = Backend.exists('eu.api.fpjs.io')
const apResultBackend = Backend.exists('ap.api.fpjs.io')
const supportedRegions = []
if (usResultBackend) {
supportedRegions.push('US')
}
if (euResultBackend) {
supportedRegions.push('EU')
}
Iif (apResultBackend) {
supportedRegions.push('AP')
}
if (supportedRegions.length === 0) {
information +=
'<li>⚠️ Your integration is missing the "fingerprint" backend. Please add a backend named "fingerprint" pointing to your regional Fingerprint API host.</li>'
} else {
information += `<li>⚠️ Deprecated: region-named backends are configured for <a href="https://dev.fingerprint.com/docs/regions">regions</a>: <strong>${supportedRegions.join(', ')}</strong>. Please migrate to a single backend named "fingerprint".</li>`
}
return information
}
function createContactInformationElement(): string {
return `
<p>
❓Please <a href="https://fingerprint.com/support">reach out to our support team</a> if you have any issues.
</p>
`
}
function buildConfigurationItem(
label: string,
options: {
isSet: boolean
required: boolean
message?: string
}
): string {
const { isSet, required, message } = options
let statusText: string
if (isSet) {
statusText = 'set ✅'
} else if (required) {
statusText = 'missing ❌'
} else {
statusText = 'not set ⚠️'
}
let extraMessage = ''
if (!isSet && message) {
extraMessage = ` ${message}`
}
return `<li><code>${label}</code> (${required ? 'Required' : 'Optional'}) is ${statusText}.${extraMessage}</li>`
}
function createEnvVarsInformationElement(env: IntegrationEnv): string {
let result = ''
result += '<p>🛠️ Required configuration values:</p>'
result += '<ul>'
result += buildConfigurationItem(proxySecretVarName, {
isSet: isProxySecretSet(env),
required: true,
message: 'Your integration is not working correctly.',
})
result += '</ul>'
result += '<p>🛠️ V3 API configuration values:</p>'
if (!isScriptDownloadPathSet(env) || !isGetResultPathSet(env)) {
result += '<p>⚠️ If you are not using the V3 API, these warnings can be safely ignored.</p>'
}
result += '<ul>'
result += buildConfigurationItem(agentScriptDownloadPathVarName, {
isSet: isScriptDownloadPathSet(env),
required: false,
})
result += buildConfigurationItem(getResultPathVarName, {
isSet: isGetResultPathSet(env),
required: false,
})
result += '</ul>'
return result
}
function buildBody(env: IntegrationEnv, styleNonce: string): string {
let body = `
<html lang='en-US'>
<head>
<meta charset='utf-8'/>
<title>Fingerprint Pro Fastly Compute Integration</title>
<link rel='icon' type='image/x-icon' href='https://fingerprint.com/img/favicon.ico'>
<style nonce='${styleNonce}'>
body {
display: flex;
flex-direction: column;
align-items: center;
}
div {
width: 60%;
max-width: 800px;
}
h1 {
display: block;
padding-top: 1em;
padding-bottom: 1em;
}
p {
padding-top: 1em;
}
code {
background:rgba(135,131,120,.15);
color:#EB5757;
border-radius:4px;
font-size:85%;
padding:0.2em 0.4em
}
</style>
</head>
<body>
<div>
<h1>Fingerprint Pro Fastly Compute Integration</h1>
`
body += `<p>🎉 Your Fastly Integration is deployed!</p>`
body += createVersionElement()
body += createEnvVarsInformationElement(env)
body += createContactInformationElement()
body += `
</div>
</body>
</html>
`
return body
}
export function handleStatusPage(request: Request, env: IntegrationEnv): Response {
if (request.method !== 'GET') {
return new Response(null, { status: 405 })
}
const styleNonce = generateNonce()
const headers = buildHeaders(styleNonce)
const body = buildBody(env, styleNonce)
return new Response(body, {
status: 200,
statusText: 'OK',
headers,
})
}
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