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import { CustomerVariables } from '../utils/customer-variables/customer-variables'
import { CustomerVariableType, CustomerVariableValue, internalVariables } from '../utils/customer-variables/types'
import { maybeObfuscateVariable } from '../utils/customer-variables/maybe-obfuscate-variable'
export interface EnvVarInfo {
envVarName: string
value: CustomerVariableValue
isSet: boolean
isInternal: boolean
// If null, the variable was resolved with the default value, otherwise it was resolved by the provider with the given name
resolvedBy: string | null
}
export interface StatusInfo {
version: string
envInfo: EnvVarInfo[]
styleNonce: string
}
async function getEnvInfo(customerVariables: CustomerVariables) {
const infoArray: EnvVarInfo[] = await Promise.all(
Object.values(CustomerVariableType).map(async (variable) => {
const value = await maybeObfuscateVariable(customerVariables, variable)
return {
envVarName: variable,
value: value.value,
isSet: Boolean(value.value),
isInternal: internalVariables.has(variable),
resolvedBy: value.resolvedBy,
}
})
)
return infoArray
}
function renderEnvInfo(envInfo: EnvVarInfo[]) {
const isAllCustomerDefinedVariablesSet = envInfo
.filter((info) => !info.isInternal)
.every((info) => info.isSet && info.resolvedBy)
if (isAllCustomerDefinedVariablesSet) {
return `
<div>
✅ All environment variables are set
</div>
`
}
const children = envInfo
.filter((info) => (!info.isSet || !info.resolvedBy) && !info.isInternal)
.map(
(info) => `
<div class="env-info-item">
⚠️ <strong>${info.envVarName} </strong> is not defined${info.isSet ? ' and uses default value' : ''}
</div>`
)
return `
<div class="env-info">
${children.join('')}
</div>
`
}
function renderHtml({ version, envInfo, styleNonce }: StatusInfo) {
return `
<html lang="en-US">
<head>
<title>CloudFront integration status</title>
<meta charset="utf-8">
<style nonce='${styleNonce}'>
body, .env-info {
display: flex;
}
body {
flex-direction: column;
align-items: center;
}
body > * {
margin-bottom: 1em;
}
</style>
</head>
<body>
<h1>CloudFront integration status</h1>
<div>
Lambda function version: ${version}
</div>
${renderEnvInfo(envInfo)}
<span>
Please reach out our support via <a href="mailto:support@fingerprint.com">support@fingerprint.com</a> if you have any issues
</span>
</body>
</html>
`
}
export async function getStatusInfo(customerVariables: CustomerVariables, styleNonce: string): Promise<StatusInfo> {
return {
version: '__lambda_func_version__',
envInfo: await getEnvInfo(customerVariables),
styleNonce,
}
}
export async function handleStatus(
customerVariables: CustomerVariables,
styleNonce: string
): Promise<CloudFrontResultResponse> {
const body = await getStatusInfo(customerVariables, styleNonce)
return {
status: '200',
body: renderHtml(body).trim(),
headers: {
'content-type': [{ key: 'Content-Type', value: 'text/html' }],
'content-security-policy': [
{
key: 'Content-Security-Policy',
value: `default-src 'none'; img-src https://fingerprint.com; style-src 'nonce-${styleNonce}'`,
},
],
},
}
}
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