@designerstrust/remix-utils
Version:
This package contains simple utility functions to use with [Remix.run](https://remix.run).
57 lines (56 loc) • 1.78 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getClientIPAddress = void 0;
const is_ip_1 = __importDefault(require("is-ip"));
const get_headers_1 = require("./get-headers");
/**
* This is the list of headers, in order of preference, that will be used to
* determine the client's IP address.
*/
const headerNames = Object.freeze([
"X-Client-IP",
"X-Forwarded-For",
"Fly-Client-IP",
"CF-Connecting-IP",
"Fastly-Client-Ip",
"True-Client-Ip",
"X-Real-IP",
"X-Cluster-Client-IP",
"X-Forwarded",
"Forwarded-For",
"Forwarded",
"DO-Connecting-IP" /** Digital ocean app platform */,
]);
function getClientIPAddress(requestOrHeaders) {
let headers = (0, get_headers_1.getHeaders)(requestOrHeaders);
let ipAddress = headerNames
.flatMap((headerName) => {
let value = headers.get(headerName);
if (headerName === "Forwarded") {
return parseForwardedHeader(value);
}
if (!(value === null || value === void 0 ? void 0 : value.includes(",")))
return value;
return value.split(",").map((ip) => ip.trim());
})
.find((ip) => {
if (ip === null)
return false;
return (0, is_ip_1.default)(ip);
});
return ipAddress !== null && ipAddress !== void 0 ? ipAddress : null;
}
exports.getClientIPAddress = getClientIPAddress;
function parseForwardedHeader(value) {
if (!value)
return null;
for (let part of value.split(";")) {
if (part.startsWith("for="))
return part.slice(4);
continue;
}
return null;
}