@aikidosec/firewall/agent/api-discovery/getBodyDataType.js

Zen by Aikido is an embedded Application Firewall that autonomously protects Node.js apps against common and critical attacks, provides rate limiting, detects malicious traffic (including bots), and more.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getBodyDataType = getBodyDataType;
const isJsonContentType_1 = require("../../helpers/isJsonContentType");
/**
 * Tries to determine the type of the body data based on the content type header.
 */
function getBodyDataType(headers) {
    if (typeof headers !== "object" || headers === null) {
        return;
    }
    let contentType = headers["content-type"];
    if (!contentType) {
        return;
    }
    if (Array.isArray(contentType)) {
        // Choose the first content type if there are multiple, express will discard duplicates
        contentType = contentType[0];
    }
    if ((0, isJsonContentType_1.isJsonContentType)(contentType)) {
        return "json";
    }
    if (contentType.startsWith("application/x-www-form-urlencoded")) {
        return "form-urlencoded";
    }
    if (contentType.startsWith("multipart/form-data")) {
        return "form-data";
    }
    if (contentType.includes("xml")) {
        return "xml";
    }
    return undefined;
}