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WorkerEnv,
isScriptDownloadPathSet,
isGetResultPathSet,
isProxySecretSet,
agentScriptDownloadPathVarName,
getResultPathVarName,
proxySecretVarName,
envHasValidIntegrationPathDepth,
integrationPathDepthVarName,
} from '../env'
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 createWorkerVersionElement(): string {
return `
<span>
ℹ️ Worker version: ${__current_worker_version__}
</span>
`
}
function createContactInformationElement(): string {
return `
<span>
❓Please contact <a href='mailto:support@fingerprint.com'>support@fingerprint.com</a> with any issues.
</span>
`
}
function createEnvVarsInformationElement(env: WorkerEnv): string {
const isScriptDownloadPathAvailable = isScriptDownloadPathSet(env)
const isGetResultPathAvailable = isGetResultPathSet(env)
const isProxySecretAvailable = isProxySecretSet(env)
const isIntegrationPathDepthAvailable = envHasValidIntegrationPathDepth(env)
const isAllRequiredVarsAvailable = isProxySecretAvailable && isIntegrationPathDepthAvailable
const isAllV3VarsAvailable = isScriptDownloadPathAvailable && isGetResultPathAvailable
let requiredResult = '<h2>Required Variables</h2>'
if (!isAllRequiredVarsAvailable) {
requiredResult += `
<span>
🚨 The following required environment variables are not defined or invalid:
</span>
`
if (!isProxySecretAvailable) {
requiredResult += `
<span>
🔴 <strong>${proxySecretVarName} </strong> is not set
</span>
`
}
if (!isIntegrationPathDepthAvailable) {
requiredResult += `
<span>
🔴 <strong>${integrationPathDepthVarName} </strong> is not valid. The default value of 1 will be used instead.
</span>
`
}
} else {
requiredResult += `
<span>
✅ All required environment variables are set.
</span>
`
}
let v3Result = '<h2>V3 API Variables</h2>'
if (!isAllV3VarsAvailable) {
v3Result += `
<span>
⚠️ The following environment variables are not defined or invalid. <br />
If you are not using the v3 API, these warnings can be safely ignored.
</span>
`
if (!isScriptDownloadPathAvailable) {
v3Result += `
<span>
🟡 <strong>${agentScriptDownloadPathVarName} </strong> is not set
</span>
`
}
if (!isGetResultPathAvailable) {
v3Result += `
<span>
🟡 <strong>${getResultPathVarName} </strong> is not set
</span>
`
}
v3Result += `
<span>
</span>
`
} else {
v3Result += `
<span>
✅ All v3 API environment variables are set.
</span>
`
}
return requiredResult + v3Result
}
function buildBody(env: WorkerEnv, styleNonce: string): string {
let body = `
<html lang='en-US'>
<head>
<meta charset='utf-8'/>
<title>Fingerprint Pro Cloudflare Worker</title>
<link rel='icon' type='image/x-icon' href='https://fingerprint.com/img/favicon.ico'>
<style nonce='${styleNonce}'>
h1, span {
display: block;
padding-top: 1em;
padding-bottom: 1em;
text-align: center;
}
h2 {
display: block;
text-align: center;
}
</style>
</head>
<body>
<h1>Fingerprint Pro Cloudflare Integration</h1>
`
body += `<span>🎉 Your Cloudflare worker is deployed</span>`
body += createWorkerVersionElement()
body += createEnvVarsInformationElement(env)
body += createContactInformationElement()
body += `
</body>
</html>
`
return body
}
export function handleStatusPage(request: Request, env: WorkerEnv): 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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