v2.0.0

src/renderer/utils/musicSdk/utils.js

@@ -0,0 +1,29 @@
+import crypto from 'crypto'
+import dns from 'dns'
+
+export const toMD5 = str => crypto.createHash('md5').update(str).digest('hex')
+
+
+const ipMap = new Map()
+export const getHostIp = hostname => {
+  const result = ipMap.get(hostname)
+  if (typeof result === 'object') return result
+  if (result === true) return
+  ipMap.set(hostname, true)
+  // console.log(hostname)
+  dns.lookup(hostname, {
+    // family: 4,
+    all: false,
+  }, (err, address, family) => {
+    if (err) return console.log(err)
+    // console.log(address, family)
+    ipMap.set(hostname, { address, family })
+  })
+}
+
+export const dnsLookup = (hostname, options, callback) => {
+  const result = getHostIp(hostname)
+  if (result) return callback(null, result.address, result.family)
+
+  dns.lookup(hostname, options, callback)
+}