Added operation to parse certificate bundles

src/core/operations/ParseX509CertificateBundles.mjs

@@ -0,0 +1,127 @@
+/**
+ * @author nehagopinath [nehagowri94@gmail.com]
+ * @copyright Crown Copyright 2020
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation.mjs";
+import r from "jsrsasign";
+import {toHex} from "../lib/Hex";
+import {fromBase64} from "../lib/Base64";
+import Utils from "../Utils";
+import {formatDnStr} from "../lib/PublicKey";
+
+/**
+ * ParseX509CertificateBundles operation
+ */
+class ParseX509CertificateBundles extends Operation {
+
+    /**
+     * ParseX509CertificateBundles constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "ParseX509CertificateBundles";
+        this.module = "PublicKey";
+        this.description = "X.509 is an ITU-T standard for a public key infrastructure (PKI) and Privilege Management Infrastructure (PMI). It is commonly involved with SSL/TLS security.<br><br>This operation displays the required contents of different certificates bundled in the input file in a human readable format, similar to the openssl command line tool.<br><br>Tags: X509, server hello, handshake";
+        this.infoURL = "https://wikipedia.org/wiki/X.509";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Input format",
+                "type": "option",
+                "value": ["PEM", "DER Hex", "Base64", "Raw"]
+            }
+        ];
+        this.patterns = [
+            {
+                "match": "^-+BEGIN CERTIFICATE-+\\r?\\n[\\da-z+/\\n\\r]+-+END CERTIFICATE-+\\r?\\n?$",
+                "flags": "i",
+                "args": [
+                    "PEM"
+                ]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        if (!input.length) {
+            return "No input";
+        }
+
+        const cert = new r.X509(),
+            inputFormat = args[0];
+
+        switch (inputFormat) {
+            case "DER Hex":
+                input = input.replace(/\s/g, "");
+                cert.readCertHex(input);
+                break;
+            case "PEM":
+                cert.readCertPEM(input);
+                break;
+            case "Base64":
+                cert.readCertHex(toHex(fromBase64(input, null, "byteArray"), ""));
+                break;
+            case "Raw":
+                cert.readCertHex(toHex(Utils.strToByteArray(input), ""));
+                break;
+            default:
+                throw "Undefined input format";
+        }
+
+        const issuer = cert.getIssuerString(),
+            subject = cert.getSubjectString();
+
+        let extensions = "";
+
+        // Extensions
+        try {
+            // extensions =cert.getInfo();
+            extensions = cert.getInfo().split("basicConstraints :\n")[1].split("signature")[0];
+        } catch (err) {}
+
+        const issuerStr = formatDnStr(issuer, 2),
+            nbDate = formatDate(cert.getNotBefore()),
+            naDate = formatDate(cert.getNotAfter()),
+            subjectStr = formatDnStr(subject, 2);
+
+        return `Validity
+  Not Before: ${nbDate} (dd-mm-yyyy hh:mm:ss) (${cert.getNotBefore()})
+  Not After: ${naDate} (dd-mm-yyyy hh:mm:ss) (${cert.getNotAfter()})
+Issuer
+${issuerStr}
+Subject
+${subjectStr}
+Extensions/basicConstraints 
+${extensions}`;
+    }
+
+}
+
+/**
+ * Formats dates.
+ *
+ * @param {string} dateStr
+ * @returns {string}
+ */
+function formatDate (dateStr) {
+    if (dateStr.length === 13) { // UTC Time
+        dateStr = (dateStr[0] < "5" ? "20" : "19") + dateStr;
+    }
+    return dateStr[6] + dateStr[7] + "/" +
+        dateStr[4] + dateStr[5] + "/" +
+        dateStr[0] + dateStr[1] + dateStr[2] + dateStr[3] + " " +
+        dateStr[8] + dateStr[9] + ":" +
+        dateStr[10] + dateStr[11] + ":" +
+        dateStr[12] + dateStr[13];
+}
+
+export default ParseX509CertificateBundles;