feat: url parser

Author: liguanliang

url/index.js

@@ -0,0 +1,65 @@
+export const parser = {
+  parse(url) {
+    let ret = {};
+
+    let regex = /^([^:]+):\/\/([^\/]+)(.*)$/; //protocol, login, urlpath
+    let result = regex.exec(url);
+
+    if (!result) {
+      throw new Error('bad url');
+    }
+
+    ret.full = url;
+    ret.protocol = result[1];
+    ret.urlpath = result[3];
+
+    let parts = ret.urlpath.split('/');
+    ret.basename = parts.pop().split(/\?|#/)[0];
+    ret.basepath = parts.join('/');
+
+    let loginSplit = result[2].split('@');
+    let hostport = loginSplit[0].split(':');
+    let userpass = [null, null];
+    if (loginSplit.length === 2) {
+      userpass = loginSplit[0].split(':');
+      hostport = loginSplit[1].split(':');
+    }
+
+    ret.user = userpass[0];
+    ret.pass = userpass[1];
+    ret.host = hostport[0];
+    ret.auth = ret.user && ret.pass ? `${ret.user}:${ret.pass}` : '';
+
+    ret.port =
+      null == hostport[1] ? Url.protocolDefaultPort(ret.protocol) : hostport[1];
+    ret.portDefined = null != hostport[1];
+    ret.location = `${ret.host}:${ret.port}`;
+
+    if (ret.protocol == 'unix') {
+      ret.socket = ret.port;
+      ret.port = undefined;
+    }
+
+    return ret;
+  },
+
+  full(parsed) {
+    return `${parsed.protocol}://${parsed.location}/${parsed.urlpath}`;
+  },
+
+  isAbsolute(url) {
+    return /^[^:]+:\/\//.test(url);
+  },
+
+  protocolDefaultPort(protocol) {
+    switch (protocol) {
+      case 'rtsp':
+        return 554;
+      case 'http':
+        return 80;
+      case 'https':
+        return 443;
+    }
+    return 0;
+  }
+};