50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
export type PortRange = { start: number; end: number };
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function isValidPort(port: number): boolean {
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return Number.isFinite(port) && port > 0 && port <= 65535;
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}
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function clampPort(port: number, fallback: number): number {
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return isValidPort(port) ? port : fallback;
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}
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function derivePort(base: number, offset: number, fallback: number): number {
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return clampPort(base + offset, fallback);
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}
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export const DEFAULT_BRIDGE_PORT = 18790;
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export const DEFAULT_BROWSER_CONTROL_PORT = 18791;
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export const DEFAULT_CANVAS_HOST_PORT = 18793;
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export const DEFAULT_BROWSER_CDP_PORT_RANGE_START = 18800;
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export const DEFAULT_BROWSER_CDP_PORT_RANGE_END = 18899;
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export function deriveDefaultBridgePort(gatewayPort: number): number {
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return derivePort(gatewayPort, 1, DEFAULT_BRIDGE_PORT);
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}
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export function deriveDefaultBrowserControlPort(gatewayPort: number): number {
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return derivePort(gatewayPort, 2, DEFAULT_BROWSER_CONTROL_PORT);
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}
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export function deriveDefaultCanvasHostPort(gatewayPort: number): number {
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return derivePort(gatewayPort, 4, DEFAULT_CANVAS_HOST_PORT);
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}
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export function deriveDefaultBrowserCdpPortRange(
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browserControlPort: number,
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): PortRange {
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const start = derivePort(
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browserControlPort,
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9,
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DEFAULT_BROWSER_CDP_PORT_RANGE_START,
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);
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const end = clampPort(
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start +
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(DEFAULT_BROWSER_CDP_PORT_RANGE_END -
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DEFAULT_BROWSER_CDP_PORT_RANGE_START),
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DEFAULT_BROWSER_CDP_PORT_RANGE_END,
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);
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if (end < start) return { start, end: start };
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return { start, end };
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}
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