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ref generate uuid versions v1, v3, v4 and v5

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victorlpgazolli 2023-03-21 18:38:21 -03:00
parent cdcec4dd03
commit 9d0bd40979
1 changed files with 30 additions and 14 deletions
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44
src/core/operations/GenerateUUID.mjs
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@ -5,8 +5,8 @@
*/ */
import Operation from "../Operation.mjs"; import Operation from "../Operation.mjs";
import crypto from "crypto"; import * as uuid from "uuid";
import OperationError from "../errors/OperationError.mjs";
/** /**
* Generate UUID operation * Generate UUID operation
*/ */
@ -20,11 +20,24 @@ class GenerateUUID extends Operation {
this.name = "Generate UUID"; this.name = "Generate UUID";
this.module = "Crypto"; this.module = "Crypto";
this.description = "Generates an RFC 4122 version 4 compliant Universally Unique Identifier (UUID), also known as a Globally Unique Identifier (GUID).<br><br>A version 4 UUID relies on random numbers, in this case generated using <code>window.crypto</code> if available and falling back to <code>Math.random</code> if not."; this.description = "Generates an RFC 4122 compliant Universally Unique Identifier (UUID), also known as a Globally Unique Identifier (GUID).<br><br>A version 4 UUID relies on random numbers, in this case generated using <code>uuid</code> package";
this.infoURL = "https://wikipedia.org/wiki/Universally_unique_identifier"; this.infoURL = "https://wikipedia.org/wiki/Universally_unique_identifier";
this.inputType = "string"; this.inputType = "string";
this.outputType = "string"; this.outputType = "string";
this.args = []; this.args = [
{
name: "UUID Version",
type: "option",
value: [
"v1", "v3", "v4", "v5"
]
},
{
name: "UUID namespace (valid for v3 and v5)",
type: "string",
value: "1b671a64-40d5-491e-99b0-da01ff1f3341"
}
];
} }
/** /**
@ -33,16 +46,19 @@ class GenerateUUID extends Operation {
* @returns {string} * @returns {string}
*/ */
run(input, args) { run(input, args) {
const buf = new Uint32Array(4).map(() => { const [version, namespace] = args;
return crypto.randomBytes(4).readUInt32BE(0, true); const hasDesiredVersion = typeof uuid[version] === "function";
}); if (!hasDesiredVersion) throw new OperationError("Invalid UUID version");
let i = 0;
return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(c) { const versionThatRequiresNamespace = ["v3", "v5"];
const r = (buf[i >> 3] >> ((i % 8) * 4)) & 0xf,
v = c === "x" ? r : (r & 0x3 | 0x8); const requiresNamespace = versionThatRequiresNamespace.includes(version);
i++; if (!requiresNamespace) return uuid[version]();
return v.toString(16);
}); const hasValidNamespace = typeof namespace === "string" && uuid.validate(namespace);
if (!hasValidNamespace) throw new OperationError("Invalid UUID namespace");
return uuid[version](input, namespace);
} }
} }