add http demo

session/users.go

@@ -316,7 +316,7 @@ func getOnlineUsers() []*conf.User {
 // addUser add a user with the specified username, password and email.
 //
 //  1. create the user's workspace
-//  2. generate 'Hello, 世界' demo code in the workspace
+//  2. generate 'Hello, 世界' demo code in the workspace (a console version and a http version)
 //  3. update the user customized configurations, such as style.css
 //  4. serve files of the user's workspace via HTTP
 func addUser(username, password, email string) string {
@@ -356,8 +356,15 @@ func addUser(username, password, email string) string {
 	return userCreated
 }
 
-// helloWorld generates the 'Hello, 世界' source code in workspace/src/hello/main.go.
+// helloWorld generates the 'Hello, 世界' source code.
+//  1. src/hello/main.go
+//  2. src/web/main.go
 func helloWorld(workspace string) {
+	consoleHello(workspace)
+	webHello(workspace)
+}
+
+func consoleHello(workspace string) {
 	dir := workspace + conf.PathSeparator + "src" + conf.PathSeparator + "hello"
 	if err := os.MkdirAll(dir, 0755); nil != err {
 		logger.Error(err)
@@ -369,7 +376,7 @@ func helloWorld(workspace string) {
 	if nil != err {
 		logger.Error(err)
 
-		os.Exit(-1)
+		return
 	}
 
 	fout.WriteString(`package main
@@ -383,3 +390,56 @@ func main() {
 
 	fout.Close()
 }
+
+func webHello(workspace string) {
+	dir := workspace + conf.PathSeparator + "src" + conf.PathSeparator + "web"
+	if err := os.MkdirAll(dir, 0755); nil != err {
+		logger.Error(err)
+
+		return
+	}
+
+	fout, err := os.Create(dir + conf.PathSeparator + "main.go")
+	if nil != err {
+		logger.Error(err)
+
+		return
+	}
+
+	code := `package main
+
+import (
+	"fmt"
+	"math/rand"
+	"net/http"
+	"strconv"
+	"time"
+)
+
+func main() {
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("Hello, 世界"))
+	})
+
+	port := getPort()
+
+	// you may need to change the address
+	fmt.Println("Open http://wide.b3log.org:" + port + " in your browser to see the result") 
+
+	if err := http.ListenAndServe(":"+port, nil); nil != err {
+		fmt.Println(err)
+	}
+}
+
+func getPort() string {
+	rand.Seed(time.Now().UnixNano())
+
+	return strconv.Itoa(7000 + rand.Intn(8000-7000))
+}
+
+`
+
+	fout.WriteString(code)
+
+	fout.Close()
+}

static/js/bottomGroup.js

@@ -74,7 +74,14 @@ var bottomGroup = {
     },
     fillOutput: function (data) {
         var $output = $('.bottom-window-group .output');
-        $output.find("div").html(data.replace(/\n/g, '<br/>'));
+        
+        data = data.replace(/\n/g, '<br/>');
+        
+        if (-1 !== data.indexOf("<br/>")) {
+            data = Autolinker.link(data);
+        }
+        
+        $output.find("div").html(data);
         $output.parent().scrollTop($output[0].scrollHeight);
     }
 };

util/rand.go

@@ -14,7 +14,10 @@
 
 package util
 
-import "math/rand"
+import (
+	"math/rand"
+	"time"
+)
 
 type myrand struct{}
 
@@ -24,8 +27,11 @@ var Rand = myrand{}
 // String returns a random string ['a', 'z'] in the specified length
 func (*myrand) String(length int) string {
 	bytes := make([]byte, length)
+
 	for i := 0; i < length; i++ {
 		bytes[i] = byte(Rand.Int('a', 'z'))
+
+		time.Sleep(100 * time.Nanosecond)
 	}
 
 	return string(bytes)
@@ -33,5 +39,9 @@ func (*myrand) String(length int) string {
 
 // Int returns a random integer in range [min, max].
 func (*myrand) Int(min int, max int) int {
+	rand.Seed(time.Now().UnixNano())
+
+	time.Sleep(100 * time.Nanosecond)
+
 	return min + rand.Intn(max-min)
 }

util/rand_test.go

@@ -0,0 +1,35 @@
+// Copyright (c) 2014, B3log
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package util
+
+import "testing"
+
+func TestString(t *testing.T) {
+	r1 := Rand.String(16)
+	r2 := Rand.String(16)
+
+	if r1 == r2 {
+		t.Fail()
+	}
+}
+
+func TestInt(t *testing.T) {
+	r1 := Rand.Int(0, 65535)
+	r2 := Rand.Int(0, 65535)
+
+	if r1 == r2 {
+		t.Fail()
+	}
+}

views/index.html

@@ -606,6 +606,8 @@
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/jquery-2.1.1.min.js"></script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/reconnecting-websocket.js"></script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/ztree/jquery.ztree.all-3.5.min.js"></script>    
+        <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/Autolinker.min.js"></script>    
+        
 
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/codemirror-{{.codeMirrorVer}}/codemirror.js"></script>
         <script type="text/javascript" src="{{.conf.StaticServer}}/static/js/lib/codemirror-{{.codeMirrorVer}}/addon/lint/lint.js"></script>