CyberChef/src/core/operations/StripHTTPHeaders.mjs

51 lines
1.3 KiB
JavaScript

/**
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2016
* @license Apache-2.0
*/
import Operation from "../Operation.mjs";
/**
* Strip HTTP headers operation
*/
class StripHTTPHeaders extends Operation {
/**
* StripHTTPHeaders constructor
*/
constructor() {
super();
this.name = "Strip HTTP headers";
this.module = "Default";
this.description = "Removes HTTP headers from a request or response by looking for the first instance of a double newline.";
this.infoURL = "https://wikipedia.org/wiki/Hypertext_Transfer_Protocol#Message_format";
this.inputType = "string";
this.outputType = "string";
this.args = [];
this.checks = [
{
pattern: "^HTTP(.|\\s)+?(\\r?\\n){2}",
flags: "",
args: []
}
];
}
/**
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
run(input, args) {
let headerEnd = input.indexOf("\r\n\r\n");
headerEnd = (headerEnd < 0) ? input.indexOf("\n\n") + 2 : headerEnd + 4;
return (headerEnd < 2) ? input : input.slice(headerEnd, input.length);
}
}
export default StripHTTPHeaders;