search with engines

src/actions/command.js

@@ -2,12 +2,37 @@ import * as tabs from '../background/tabs';
 import * as histories from '../background/histories';
 import * as consoleActions from './console';
 
-const normalizeUrl = (string) => {
+const DEFAULT_SEARCH_ENGINES = {
+  default: 'google',
+  engines: {
+    'google': 'https://google.com/search?q={}',
+    'yahoo': 'https://search.yahoo.com/search?p={}',
+    'bing': 'https://www.bing.com/search?q={}',
+    'duckduckgo': 'https://duckduckgo.com/?q={}',
+    'twitter': 'https://twitter.com/search?q={}',
+    'wikipedia': 'https://en.wikipedia.org/w/index.php?search={}'
+  }
+};
+
+const normalizeUrl = (string, searchConfig) => {
   try {
     return new URL(string).href;
   } catch (e) {
+    if (string.includes('.') && !string.includes(' ')) {
       return 'http://' + string;
     }
+    let query = encodeURI(string);
+    let template = searchConfig.engines[
+      searchConfig.default
+    ];
+    for (let key in searchConfig.engines) {
+      if (string.startsWith(key + ' ')) {
+        query = encodeURI(string.replace(key + ' ', ''));
+        template = searchConfig.engines[key];
+      }
+    }
+    return template.replace('{}', query);
+  }
 };
 
 const openCommand = (url) => {
@@ -43,10 +68,10 @@ const doCommand = (name, remaining) => {
   case 'o':
   case 'open':
     // TODO use search engined and pass keywords to them
-    return openCommand(normalizeUrl(remaining));
+    return openCommand(normalizeUrl(remaining, DEFAULT_SEARCH_ENGINES));
   case 't':
   case 'tabopen':
-    return tabopenCommand(normalizeUrl(remaining));
+    return tabopenCommand(normalizeUrl(remaining, DEFAULT_SEARCH_ENGINES));
   case 'b':
   case 'buffer':
     return bufferCommand(remaining);