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import { setOrRemoveHeaderField, sfBoolTrue, sfDate, sfDisplayString, sfString, sfStringFromNumber } from './headers'
// Serializer for `setOrRemoveHeaderField` used with boolean-valued fields. The header is only set
// when the value is truthy, so we always emit `?1` (RFC 9651 sf-boolean true).
const sfBoolTrueIfPresent = () => sfBoolTrue
export enum EdgeHeaders {
IpV4Address = 'fp-ip-info-v4-address',
IpV4GeolocationAccuracyRadius = 'fp-ip-info-v4-geolocation-accuracy-radius',
IpV4GeolocationLatitude = 'fp-ip-info-v4-geolocation-latitude',
IpV4GeolocationLongitude = 'fp-ip-info-v4-geolocation-longitude',
IpV4GeolocationPostalCode = 'fp-ip-info-v4-geolocation-postal-code',
IpV4GeolocationTimezone = 'fp-ip-info-v4-geolocation-timezone',
IpV4GeolocationCityName = 'fp-ip-info-v4-geolocation-city-name',
IpV4GeolocationCountryCode = 'fp-ip-info-v4-geolocation-country-code',
IpV4GeolocationContinentCode = 'fp-ip-info-v4-geolocation-continent-code',
IpV4AsnName = 'fp-ip-info-v4-asn-name',
IpV4AsnNetwork = 'fp-ip-info-v4-asn-network',
IpV4AsnType = 'fp-ip-info-v4-asn-type',
IpV4DatacenterName = 'fp-ip-info-v4-datacenter-name',
IpV6Address = 'fp-ip-info-v6-address',
IpV6GeolocationAccuracyRadius = 'fp-ip-info-v6-geolocation-accuracy-radius',
IpV6GeolocationLatitude = 'fp-ip-info-v6-geolocation-latitude',
IpV6GeolocationLongitude = 'fp-ip-info-v6-geolocation-longitude',
IpV6GeolocationPostalCode = 'fp-ip-info-v6-geolocation-postal-code',
IpV6GeolocationTimezone = 'fp-ip-info-v6-geolocation-timezone',
IpV6GeolocationCityName = 'fp-ip-info-v6-geolocation-city-name',
IpV6GeolocationCountryCode = 'fp-ip-info-v6-geolocation-country-code',
IpV6GeolocationContinentCode = 'fp-ip-info-v6-geolocation-continent-code',
IpV6AsnName = 'fp-ip-info-v6-asn-name',
IpV6AsnNetwork = 'fp-ip-info-v6-asn-network',
IpV6AsnType = 'fp-ip-info-v6-asn-type',
IpV6DatacenterName = 'fp-ip-info-v6-datacenter-name',
BotInfoCategory = 'fp-bot-info-category',
BotInfoProvider = 'fp-bot-info-provider',
BotInfoName = 'fp-bot-info-name',
BotInfoIdentity = 'fp-bot-info-identity',
Proxy = 'fp-proxy',
ProxyConfidence = 'fp-proxy-confidence',
ProxyDetailsProxyType = 'fp-proxy-details-proxy-type',
ProxyDetailsLastSeenAt = 'fp-proxy-details-last-seen-at',
ProxyDetailsProvider = 'fp-proxy-details-provider',
Vpn = 'fp-vpn',
VpnConfidence = 'fp-vpn-confidence',
VpnMethodsTimezoneMismatch = 'fp-vpn-methods-timezone-mismatch',
VpnMethodsPublicVpn = 'fp-vpn-methods-public-vpn',
VpnMethodsAuxiliaryMobile = 'fp-vpn-methods-auxiliary-mobile',
VpnMethodsOsMismatch = 'fp-vpn-methods-os-mismatch',
VpnMethodsRelay = 'fp-vpn-methods-relay',
IpBlocklistTorNode = 'fp-ip-blocklist-tor-node',
}
const PROXY_HEADERS = [
EdgeHeaders.Proxy,
EdgeHeaders.ProxyConfidence,
EdgeHeaders.ProxyDetailsProxyType,
EdgeHeaders.ProxyDetailsLastSeenAt,
EdgeHeaders.ProxyDetailsProvider,
] as const
const VPN_HEADERS = [
EdgeHeaders.Vpn,
EdgeHeaders.VpnConfidence,
EdgeHeaders.VpnMethodsTimezoneMismatch,
EdgeHeaders.VpnMethodsPublicVpn,
EdgeHeaders.VpnMethodsAuxiliaryMobile,
EdgeHeaders.VpnMethodsOsMismatch,
EdgeHeaders.VpnMethodsRelay,
] as const
const IP_V4_INFO_HEADERS = [
EdgeHeaders.IpV4Address,
EdgeHeaders.IpV4GeolocationAccuracyRadius,
EdgeHeaders.IpV4GeolocationLatitude,
EdgeHeaders.IpV4GeolocationLongitude,
EdgeHeaders.IpV4GeolocationPostalCode,
EdgeHeaders.IpV4GeolocationTimezone,
EdgeHeaders.IpV4GeolocationCityName,
EdgeHeaders.IpV4GeolocationCountryCode,
EdgeHeaders.IpV4GeolocationContinentCode,
EdgeHeaders.IpV4AsnName,
EdgeHeaders.IpV4AsnNetwork,
EdgeHeaders.IpV4AsnType,
EdgeHeaders.IpV4DatacenterName,
] as const
const IP_V6_INFO_HEADERS = [
EdgeHeaders.IpV6Address,
EdgeHeaders.IpV6GeolocationAccuracyRadius,
EdgeHeaders.IpV6GeolocationLatitude,
EdgeHeaders.IpV6GeolocationLongitude,
EdgeHeaders.IpV6GeolocationPostalCode,
EdgeHeaders.IpV6GeolocationTimezone,
EdgeHeaders.IpV6GeolocationCityName,
EdgeHeaders.IpV6GeolocationCountryCode,
EdgeHeaders.IpV6GeolocationContinentCode,
EdgeHeaders.IpV6AsnName,
EdgeHeaders.IpV6AsnNetwork,
EdgeHeaders.IpV6AsnType,
EdgeHeaders.IpV6DatacenterName,
] as const
function setIpVersionHeaders(
headers: Headers,
info: NonNullable<EdgeResponse['ip_info']['v4'] | EdgeResponse['ip_info']['v6']> | undefined,
names: typeof IP_V4_INFO_HEADERS | typeof IP_V6_INFO_HEADERS
) {
const [
addressHeader,
accuracyRadiusHeader,
latitudeHeader,
longitudeHeader,
postalCodeHeader,
timezoneHeader,
cityNameHeader,
countryCodeHeader,
continentCodeHeader,
asnNameHeader,
asnNetworkHeader,
asnTypeHeader,
datacenterNameHeader,
] = names
setOrRemoveHeaderField(headers, addressHeader, sfString, info?.address)
const geo = info?.geolocation
setOrRemoveHeaderField(headers, accuracyRadiusHeader, sfStringFromNumber, geo?.accuracy_radius)
setOrRemoveHeaderField(headers, latitudeHeader, sfStringFromNumber, geo?.latitude)
setOrRemoveHeaderField(headers, longitudeHeader, sfStringFromNumber, geo?.longitude)
setOrRemoveHeaderField(headers, postalCodeHeader, sfString, geo?.postal_code)
setOrRemoveHeaderField(headers, timezoneHeader, sfString, geo?.timezone)
setOrRemoveHeaderField(headers, cityNameHeader, sfDisplayString, geo?.city_name)
setOrRemoveHeaderField(headers, countryCodeHeader, sfString, geo?.country_code)
setOrRemoveHeaderField(headers, continentCodeHeader, sfString, geo?.continent_code)
setOrRemoveHeaderField(headers, asnNameHeader, sfDisplayString, info?.asn_name)
setOrRemoveHeaderField(headers, asnNetworkHeader, sfString, info?.asn_network)
setOrRemoveHeaderField(headers, asnTypeHeader, sfString, info?.asn_type)
setOrRemoveHeaderField(headers, datacenterNameHeader, sfDisplayString, info?.datacenter_name)
}
function deleteHeaders(headers: Headers, names: readonly string[]) {
for (const name of names) {
headers.delete(name)
}
}
/**
* Set header fields that correspond to the properties from the `EdgeResponse` in the specified `requestHeaders`.
*
* Empty / null / `undefined` values are omitted. Structured-field values follow RFC 9651: strings are
* escaped, booleans are `?1` (false values are omitted entirely), and dates use `@<unix-seconds>`.
* Proxy and VPN groups are gated on their parent boolean: when `proxy`/`vpn` is not detected, none of
* their sub-headers are sent.
*
* @param requestHeaders the `Headers` to update
* @param edgeResponse the `EdgeResponse`
*/
export function setEdgeResponseHeaders(requestHeaders: Headers, edgeResponse?: EdgeResponse) {
// Handle both v4 and v6 formats, the implementation will automatically set only the appropriate headers for correct IP version and remove the others
setIpVersionHeaders(requestHeaders, edgeResponse?.ip_info.v4, IP_V4_INFO_HEADERS)
setIpVersionHeaders(requestHeaders, edgeResponse?.ip_info.v6, IP_V6_INFO_HEADERS)
setBotInfoHeaders(requestHeaders, edgeResponse?.bot_info)
setProxyHeaders(requestHeaders, edgeResponse)
setVpnHeaders(requestHeaders, edgeResponse)
setOrRemoveHeaderField(
requestHeaders,
EdgeHeaders.IpBlocklistTorNode,
sfBoolTrueIfPresent,
edgeResponse?.ip_blocklist?.tor_node
)
}
function setBotInfoHeaders(headers: Headers, botInfo: EdgeResponse['bot_info']) {
setOrRemoveHeaderField(headers, EdgeHeaders.BotInfoCategory, sfString, botInfo?.category)
setOrRemoveHeaderField(headers, EdgeHeaders.BotInfoProvider, sfDisplayString, botInfo?.provider)
setOrRemoveHeaderField(headers, EdgeHeaders.BotInfoName, sfDisplayString, botInfo?.name)
setOrRemoveHeaderField(headers, EdgeHeaders.BotInfoIdentity, sfString, botInfo?.identity)
}
function setProxyHeaders(headers: Headers, edgeResponse: EdgeResponse | undefined) {
if (!edgeResponse?.proxy) {
deleteHeaders(headers, PROXY_HEADERS)
return
}
headers.set(EdgeHeaders.Proxy, sfBoolTrue)
setOrRemoveHeaderField(headers, EdgeHeaders.ProxyConfidence, sfString, edgeResponse.proxy_confidence)
setOrRemoveHeaderField(headers, EdgeHeaders.ProxyDetailsProxyType, sfString, edgeResponse.proxy_details?.proxy_type)
setOrRemoveHeaderField(headers, EdgeHeaders.ProxyDetailsLastSeenAt, sfDate, edgeResponse.proxy_details?.last_seen_at)
setOrRemoveHeaderField(
headers,
EdgeHeaders.ProxyDetailsProvider,
sfDisplayString,
edgeResponse.proxy_details?.provider
)
}
function setVpnHeaders(headers: Headers, edgeResponse: EdgeResponse | undefined) {
if (!edgeResponse?.vpn) {
deleteHeaders(headers, VPN_HEADERS)
return
}
headers.set(EdgeHeaders.Vpn, sfBoolTrue)
setOrRemoveHeaderField(headers, EdgeHeaders.VpnConfidence, sfString, edgeResponse.vpn_confidence)
const methods = edgeResponse.vpn_methods
setOrRemoveHeaderField(
headers,
EdgeHeaders.VpnMethodsTimezoneMismatch,
sfBoolTrueIfPresent,
methods?.timezone_mismatch
)
setOrRemoveHeaderField(headers, EdgeHeaders.VpnMethodsPublicVpn, sfBoolTrueIfPresent, methods?.public_vpn)
setOrRemoveHeaderField(headers, EdgeHeaders.VpnMethodsAuxiliaryMobile, sfBoolTrueIfPresent, methods?.auxiliary_mobile)
setOrRemoveHeaderField(headers, EdgeHeaders.VpnMethodsOsMismatch, sfBoolTrueIfPresent, methods?.os_mismatch)
setOrRemoveHeaderField(headers, EdgeHeaders.VpnMethodsRelay, sfBoolTrueIfPresent, methods?.relay)
}
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