add user api

server-api/libs/crypto.js

@@ -1,20 +1,37 @@
 var crypto = require('crypto');
 
+/**
+ * 
+ * @param {number} len 
+ */
 var random = (len = 32) => {
     var buf = crypto.randomBytes(len);
     return buf.toString("hex");
 }
 
+/**
+ * 
+ * @param {string} str 
+ */
 var sha256 = (str) => {
     return crypto.createHash("sha256").update(str).digest('base64');
 }
 
+/**
+ * 
+ * @param {string} str 
+ */
 var genPassHash = (str) => {
     var hash = random(16);
     var pass = sha256(str + hash);
     return `$${hash}$${pass}`;
 }
 
+/**
+ * 
+ * @param {string} plain 
+ * @param {string} hash 
+ */
 var comparePass = (plain, hash) => {
     var match = hash.match(/^\$(.+?)\$(.+)$/);
     if (match == null || match.length < 3 || !match[1] || !match[2]) return false;