import type { RelayManagedEndpoint } from "@t3tools/contracts/relay";import * as Schema from "effect/Schema"; const DNS_LABEL_MAX_LENGTH = 63;const MANAGED_ENDPOINT_HASH_LENGTH = 16;const MANAGED_ENDPOINT_TUNNEL_PREFIX = "t3coderelay-managedendpoint";export const MANAGED_ENDPOINT_ZONE_OWNER_STAGE = "prod"; export class RelayPublicDomainLabelTooLongError extends Schema.TaggedError<RelayPublicDomainLabelTooLongError>()( "RelayPublicDomainLabelTooLongError", { stage: Schema.String, label: Schema.String, maxLength: Schema.Number, },) { override get message(): string { return `Relay stage '${this.stage}' produces custom domain label '${this.label}' (${this.label.length} characters), exceeding the DNS label limit of ${this.maxLength}.`; }} function normalizeZoneName(zoneName: string): string { return zoneName .trim() .toLowerCase() .replace(/^\.+|\.+$/g, "");} function isDnsName(name: string): boolean { return ( name.length > 0 && name.length <= 253 && name .split(".") .every( (label) => label.length > 0 && label.length <= DNS_LABEL_MAX_LENGTH && /^[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/u.test(label), ) );} function stableSuffix(hash: string): string { return hash.toLowerCase().slice(0, MANAGED_ENDPOINT_HASH_LENGTH);} function appendDnsSafeSuffix(prefix: string, suffix: string): string { const truncatedPrefix = prefix .slice(0, DNS_LABEL_MAX_LENGTH - suffix.length - 1) .replace(/-+$/g, ""); return `${truncatedPrefix}-${suffix}`;} /** * Alchemy's physical-name helper sanitizes resource names after adding the * stage. Keep custom domains and runtime-created resources aligned with it. */function relayStageSlug(stage: string): string { return stage .toLowerCase() .replaceAll(/[^a-z0-9-]/g, "-") .replaceAll(/-+/g, "-") .replace(/^-+|-+$/g, "");} export function relayResourceNameForStage(name: string, stage: string): string { return `${name}-${relayStageSlug(stage)}`;} export function relayOwnsManagedEndpointZone(stage: string): boolean { return stage === MANAGED_ENDPOINT_ZONE_OWNER_STAGE;} export function relayPublicDomainForStage(stage: string, zoneName: string): string { const stageSlug = relayStageSlug(stage); const relayLabel = stage === "prod" ? "relay" : `relay-${stageSlug}`; if (relayLabel.length > DNS_LABEL_MAX_LENGTH) { throw new RelayPublicDomainLabelTooLongError({ stage, label: relayLabel, maxLength: DNS_LABEL_MAX_LENGTH, }); } return `${relayLabel}.${normalizeZoneName(zoneName)}`;} export function managedEndpointDigestInput( stage: string, userId: string, environmentId: string,): string { return `${stage}:${userId}:${environmentId}`;} export function managedEndpointHostname(stage: string, baseDomain: string, hash: string): string { const label = appendDnsSafeSuffix(relayStageSlug(stage), stableSuffix(hash)); return `${label}.${normalizeZoneName(baseDomain)}`;} export function isManagedEndpointHostname(hostname: string, baseDomain: string): boolean { const normalizedHostname = normalizeZoneName(hostname); const normalizedBaseDomain = normalizeZoneName(baseDomain); return ( hostname === normalizedHostname && isDnsName(normalizedHostname) && isDnsName(normalizedBaseDomain) && normalizedHostname.endsWith(`.${normalizedBaseDomain}`) );} export function managedEndpointForHostname(hostname: string): RelayManagedEndpoint { return { httpBaseUrl: `https://${hostname}/`, wsBaseUrl: `wss://${hostname}/ws`, providerKind: "cloudflare_tunnel", };} export function managedEndpointTunnelName(stage: string, hash: string): string { return `${MANAGED_ENDPOINT_TUNNEL_PREFIX}-${relayStageSlug(stage)}-${stableSuffix(hash)}`;}
import type { RelayManagedEndpoint } from "@t3tools/contracts/relay";
import * as Schema from "effect/Schema";
const DNS_LABEL_MAX_LENGTH = 63;
const MANAGED_ENDPOINT_HASH_LENGTH = 16;
const MANAGED_ENDPOINT_TUNNEL_PREFIX = "t3coderelay-managedendpoint";
export const MANAGED_ENDPOINT_ZONE_OWNER_STAGE = "prod";
export class RelayPublicDomainLabelTooLongError extends Schema.TaggedError<RelayPublicDomainLabelTooLongError>()(
"RelayPublicDomainLabelTooLongError",
{
stage: Schema.String,
label: Schema.String,
maxLength: Schema.Number,
},
) {
override get message(): string {
return `Relay stage '${this.stage}' produces custom domain label '${this.label}' (${this.label.length} characters), exceeding the DNS label limit of ${this.maxLength}.`;
}
}
function normalizeZoneName(zoneName: string): string {
return zoneName
.trim()
.toLowerCase()
.replace(/^\.+|\.+$/g, "");
}
function isDnsName(name: string): boolean {
return (
name.length > 0 &&
name.length <= 253 &&
name
.split(".")
.every(
(label) =>
label.length > 0 &&
label.length <= DNS_LABEL_MAX_LENGTH &&
/^[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/u.test(label),
)
);
}
function stableSuffix(hash: string): string {
return hash.toLowerCase().slice(0, MANAGED_ENDPOINT_HASH_LENGTH);
}
function appendDnsSafeSuffix(prefix: string, suffix: string): string {
const truncatedPrefix = prefix
.slice(0, DNS_LABEL_MAX_LENGTH - suffix.length - 1)
.replace(/-+$/g, "");
return `${truncatedPrefix}-${suffix}`;
}
/**
* Alchemy's physical-name helper sanitizes resource names after adding the
* stage. Keep custom domains and runtime-created resources aligned with it.
*/
function relayStageSlug(stage: string): string {
return stage
.toLowerCase()
.replaceAll(/[^a-z0-9-]/g, "-")
.replaceAll(/-+/g, "-")
.replace(/^-+|-+$/g, "");
}
export function relayResourceNameForStage(name: string, stage: string): string {
return `${name}-${relayStageSlug(stage)}`;
}
export function relayOwnsManagedEndpointZone(stage: string): boolean {
return stage === MANAGED_ENDPOINT_ZONE_OWNER_STAGE;
}
export function relayPublicDomainForStage(stage: string, zoneName: string): string {
const stageSlug = relayStageSlug(stage);
const relayLabel = stage === "prod" ? "relay" : `relay-${stageSlug}`;
if (relayLabel.length > DNS_LABEL_MAX_LENGTH) {
throw new RelayPublicDomainLabelTooLongError({
stage,
label: relayLabel,
maxLength: DNS_LABEL_MAX_LENGTH,
});
}
return `${relayLabel}.${normalizeZoneName(zoneName)}`;
}
export function managedEndpointDigestInput(
stage: string,
userId: string,
environmentId: string,
): string {
return `${stage}:${userId}:${environmentId}`;
}
export function managedEndpointHostname(stage: string, baseDomain: string, hash: string): string {
const label = appendDnsSafeSuffix(relayStageSlug(stage), stableSuffix(hash));
return `${label}.${normalizeZoneName(baseDomain)}`;
}
export function isManagedEndpointHostname(hostname: string, baseDomain: string): boolean {
const normalizedHostname = normalizeZoneName(hostname);
const normalizedBaseDomain = normalizeZoneName(baseDomain);
return (
hostname === normalizedHostname &&
isDnsName(normalizedHostname) &&
isDnsName(normalizedBaseDomain) &&
normalizedHostname.endsWith(`.${normalizedBaseDomain}`)
);
}
export function managedEndpointForHostname(hostname: string): RelayManagedEndpoint {
return {
httpBaseUrl: `https://${hostname}/`,
wsBaseUrl: `wss://${hostname}/ws`,
providerKind: "cloudflare_tunnel",
};
}
export function managedEndpointTunnelName(stage: string, hash: string): string {
return `${MANAGED_ENDPOINT_TUNNEL_PREFIX}-${relayStageSlug(stage)}-${stableSuffix(hash)}`;
}