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IntegrationEnv,
isScriptDownloadPathSet,
isGetResultPathSet,
isProxySecretSet,
agentScriptDownloadPathVarName,
getResultPathVarName,
proxySecretVarName,
isOpenClientResponseSet,
openClientResponseVarName,
decryptionKeyVarName,
isOpenClientResponseEnabled,
isDecryptionKeySet,
saveToKvStorePluginEnabledVarName,
isSaveToKvStorePluginEnabled,
isSaveToKvStorePluginEnabledSet,
getDecryptionKey,
} from '../env'
import packageJson from '../../package.json'
import { env } from 'fastly:env'
import { getBuiltinKVStore, getNamesForStores } from '../utils/getStore'
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>${fastlyServiceVersion}</strong>
</li>
`
result += getBackendsInformation()
result += '</ul>'
return result
}
function getBackendsInformation(): string {
let information = ''
Iif (!Backend.exists('fpcdn.io')) {
information += '<li>⚠️ Your integration is missing "fpcdn.io" backend host.</li>'
}
const usResultBackend = Backend.exists('api.fpjs.io')
const euResultBackend = Backend.exists('eu.api.fpjs.io')
const apResultBackend = Backend.exists('ap.api.fpjs.io')
const supportedRegions = []
Eif (usResultBackend) {
supportedRegions.push('US')
}
Eif (euResultBackend) {
supportedRegions.push('EU')
}
Eif (apResultBackend) {
supportedRegions.push('AP')
}
Iif (supportedRegions.length === 0) {
information +=
'<li>⚠️ Your integration is missing backend hosts for <a href="https://dev.fingerprint.com/docs/regions">region support</a>. Please add at least one of the backends "api.fpjs.io", "eu.api.fpjs.io", or "ap.api.fpjs.io"</li>'
} else {
information += `<li>ℹ️ Integration is configured for these <a href="https://dev.fingerprint.com/docs/regions">regions</a>: <strong>${supportedRegions.join(', ')}</strong></li>`
}
return information
}
function isValidBase64(str: string | null | undefined): boolean {
// Check if the string matches the base64 pattern
const base64Pattern = /^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$/
if (!str) {
return false
}
// Validate the string length (should be a multiple of 4)
if (str.length % 4 !== 0) {
return false
}
// Test against the Base64 pattern
return base64Pattern.test(str)
}
async function checkKVStoreAvailability() {
try {
const kvStore = getBuiltinKVStore()
const testKeyName = 'kvStoreCheck'
await kvStore.put(testKeyName, 'true')
const entry = await kvStore.get(testKeyName)
const value = await entry?.text()
await kvStore.delete(testKeyName)
return value === 'true'
} catch (_) {
return false
}
}
function createContactInformationElement(): string {
return `
<p>
❓Please <a href="https://fingerprint.com/support">reach out to our support team</a> if you have any issues.
</p>
`
}
function buildConfigurationMessage(config: ConfigurationStatus, env: IntegrationEnv): string {
const { isSet, label, required, value, showValue } = config
let message = isSet ? '' : config.message
Iif (label === decryptionKeyVarName && isSet) {
const isDecryptionKeyAValidBase64 = isValidBase64(getDecryptionKey(env))
if (!isDecryptionKeyAValidBase64) {
message += `Invalid value provided ⚠️. Please copy and paste the correct value from the dashboard.`
}
}
return `<li><code>${label}</code> (${required ? 'Required' : 'Optional'}) is ${isSet ? `${showValue ? `<code>${value}</code>` : 'set'} ✅` : `${required ? 'missing ❌' : 'not set ⚠️'}`}. ${message ?? ''}</li>`
}
async function buildKVStoreCheckMessage(): Promise<string> {
const isKVStoreAvailable = await checkKVStoreAvailability()
if (isKVStoreAvailable) {
return ''
}
const { kvStoreName } = getNamesForStores()
return `⚠️You have <code>${saveToKvStorePluginEnabledVarName}</code> enabled, but we couldn't reach your KVStore named <code>${kvStoreName}</code>. <code>${saveToKvStorePluginEnabledVarName}</code> related plugin is not working correctly.`
}
type ConfigurationStatus = {
label: string
isSet: boolean
required: boolean
message?: string
value?: string | null
showValue?: boolean
}
function createEnvVarsInformationElement(env: IntegrationEnv): string {
const incorrectConfigurationMessage = 'Your integration is not working correctly.'
const configurations: ConfigurationStatus[] = [
{
label: agentScriptDownloadPathVarName,
isSet: isScriptDownloadPathSet(env),
required: true,
message: incorrectConfigurationMessage,
},
{
label: getResultPathVarName,
isSet: isGetResultPathSet(env),
required: true,
message: incorrectConfigurationMessage,
},
{
label: proxySecretVarName,
isSet: isProxySecretSet(env),
required: true,
message: incorrectConfigurationMessage,
},
]
let result = ''
result += '<p>🛠️ Your integration’s configuration values:</p>'
result += '<ul>'
for (const config of configurations) {
result += buildConfigurationMessage(config, env)
}
result += '</ul>'
return result
}
async function createOpenClientResponseInformationElement(env: IntegrationEnv): Promise<string> {
const configurations: ConfigurationStatus[] = [
{
label: openClientResponseVarName,
isSet: isOpenClientResponseSet(env),
required: false,
value: env.OPEN_CLIENT_RESPONSE_PLUGINS_ENABLED,
showValue: true,
message: 'Open client response plugins are disabled.',
},
{
label: decryptionKeyVarName,
isSet: isDecryptionKeySet(env),
required: false,
message:
'Open client response plugins are not working correctly. This is required if you want to use Open client response plugins.',
},
{
label: saveToKvStorePluginEnabledVarName,
isSet: isSaveToKvStorePluginEnabledSet(env),
required: false,
value: env.SAVE_TO_KV_STORE_PLUGIN_ENABLED,
showValue: true,
},
]
let result = ''
result += `<p style="display: block">🔌 Open client response configuration values:<br>(Optional, only relevant if you are using <a href="https://dev.fingerprint.com/docs/using-open-client-response-with-fastly-compute-proxy-integration-plugins">Open client response plugins</a>)</p>`
result += '<ul>'
for (const config of configurations) {
result += buildConfigurationMessage(config, env)
}
Iif (isOpenClientResponseEnabled(env) && isSaveToKvStorePluginEnabled(env)) {
const errorMessage = await buildKVStoreCheckMessage()
if (errorMessage) {
result += `<li>${errorMessage}</li>`
}
}
result += '</ul>'
return result
}
async function buildBody(env: IntegrationEnv, styleNonce: string): Promise<string> {
let body = `
<html lang='en-US'>
<head>
<meta charset='utf-8'/>
<title>Fingerprint Pro Fastly Compute Integration</title>
<link rel='icon' type='image/x-icon' href='https://fingerprint.com/img/favicon.ico'>
<style nonce='${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 += await createOpenClientResponseInformationElement(env)
body += `
</div>
</body>
</html>
`
return body
}
export async function handleStatusPage(request: Request, env: IntegrationEnv): Promise<Response> {
if (request.method !== 'GET') {
return new Response(null, { status: 405 })
}
const styleNonce = generateNonce()
const headers = buildHeaders(styleNonce)
const body = await buildBody(env, styleNonce)
return new Response(body, {
status: 200,
statusText: 'OK',
headers,
})
}
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