98 lines
3.4 KiB
JavaScript
98 lines
3.4 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.dump = void 0;
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const tag_1 = require("./tag");
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// Utility function to dump the contents of an ASN1Obj to the console.
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function dump(obj, indent = 0) {
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let str = ' '.repeat(indent);
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str += tagToString(obj.tag) + ' ';
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if (obj.tag.isUniversal()) {
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switch (obj.tag.number) {
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case tag_1.UNIVERSAL_TAG.BOOLEAN:
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str += obj.toBoolean();
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break;
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case tag_1.UNIVERSAL_TAG.INTEGER:
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str += `(${obj.value.length} byte) `;
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str += obj.toInteger();
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break;
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case tag_1.UNIVERSAL_TAG.BIT_STRING: {
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const bits = obj.toBitString();
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str += `(${bits.length} bit) `;
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str += truncate(bits.map((bit) => bit.toString()).join(''));
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break;
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}
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case tag_1.UNIVERSAL_TAG.OBJECT_IDENTIFIER:
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str += obj.toOID();
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break;
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case tag_1.UNIVERSAL_TAG.SEQUENCE:
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case tag_1.UNIVERSAL_TAG.SET:
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str += `(${obj.subs.length} elem) `;
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break;
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case tag_1.UNIVERSAL_TAG.PRINTABLE_STRING:
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str += obj.value.toString('ascii');
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break;
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case tag_1.UNIVERSAL_TAG.UTC_TIME:
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case tag_1.UNIVERSAL_TAG.GENERALIZED_TIME:
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str += obj.toDate().toUTCString();
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break;
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default:
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str += `(${obj.value.length} byte) `;
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str += isASCII(obj.value)
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? obj.value.toString('ascii')
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: truncate(obj.value.toString('hex').toUpperCase());
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}
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}
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else {
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if (obj.tag.constructed) {
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str += `(${obj.subs.length} elem) `;
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}
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else {
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str += `(${obj.value.length} byte) `;
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str += isASCII(obj.value)
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? obj.value.toString('ascii')
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: obj.value.toString('hex').toUpperCase();
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}
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}
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console.log(str);
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// Recursive call for children
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obj.subs.forEach((sub) => dump(sub, indent + 2));
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}
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exports.dump = dump;
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function tagToString(tag) {
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if (tag.isContextSpecific()) {
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return `[${tag.number.toString(16)}]`;
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}
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else {
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switch (tag.number) {
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case tag_1.UNIVERSAL_TAG.BOOLEAN:
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return 'BOOLEAN';
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case tag_1.UNIVERSAL_TAG.INTEGER:
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return 'INTEGER';
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case tag_1.UNIVERSAL_TAG.BIT_STRING:
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return 'BIT STRING';
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case tag_1.UNIVERSAL_TAG.OCTET_STRING:
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return 'OCTET STRING';
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case tag_1.UNIVERSAL_TAG.OBJECT_IDENTIFIER:
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return 'OBJECT IDENTIFIER';
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case tag_1.UNIVERSAL_TAG.SEQUENCE:
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return 'SEQUENCE';
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case tag_1.UNIVERSAL_TAG.SET:
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return 'SET';
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case tag_1.UNIVERSAL_TAG.PRINTABLE_STRING:
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return 'PrintableString';
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case tag_1.UNIVERSAL_TAG.UTC_TIME:
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return 'UTCTime';
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case tag_1.UNIVERSAL_TAG.GENERALIZED_TIME:
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return 'GeneralizedTime';
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default:
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return tag.number.toString(16);
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}
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}
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}
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function isASCII(buf) {
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return buf.every((b) => b >= 32 && b <= 126);
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}
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function truncate(str) {
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return str.length > 70 ? str.substring(0, 69) + '...' : str;
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}
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