From 3b8cb3385bc687999d8d943e72748d384a0378b0 Mon Sep 17 00:00:00 2001
From: Liang Ding <dl88250@gmail.com>
Date: Sat, 21 Feb 2015 14:37:04 +0800
Subject: [PATCH] #212

disqus integration
---
 playground/playgrounds.go   | 22 ++++++++++++++++------
 views/playground/index.html | 14 ++++++++++++++
 2 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/playground/playgrounds.go b/playground/playgrounds.go
index dd61cd4..dfd4375 100644
--- a/playground/playgrounds.go
+++ b/playground/playgrounds.go
@@ -63,27 +63,37 @@ func IndexHandler(w http.ResponseWriter, r *http.Request) {
 
 	// try to load file
 	code := conf.HelloWorld
+	fileName := "8b7cc38b4c12e6fde5c4d15a4f2f32e5.go" // MD5 of HelloWorld.go
 	if strings.HasSuffix(r.RequestURI, ".go") {
-		fileName := r.RequestURI[len("/playground/"):]
-		filePath := filepath.Clean(conf.Wide.Playground + "/" + fileName)
+		fileNameArg := r.RequestURI[len("/playground/"):]
+		filePath := filepath.Clean(conf.Wide.Playground + "/" + fileNameArg)
 
 		bytes, err := ioutil.ReadFile(filePath)
 		if nil != err {
 			logger.Warn(err)
+		} else {
+			code = string(bytes)
+			fileName = fileNameArg
 		}
-
-		code = string(bytes)
 	}
 
+	query := r.URL.Query()
 	embed := false
-	embedArg, ok := r.URL.Query()["embed"]
+	embedArg, ok := query["embed"]
 	if ok && "true" == embedArg[0] {
 		embed = true
 	}
 
+	disqus := false
+	disqusArg, ok := query["disqus"]
+	if ok && "true" == disqusArg[0] {
+		disqus = true
+	}
+
 	model := map[string]interface{}{"conf": conf.Wide, "i18n": i18n.GetAll(locale), "locale": locale,
 		"session": wideSession, "pathSeparator": conf.PathSeparator, "codeMirrorVer": conf.CodeMirrorVer,
-		"code": template.HTML(code), "ver": conf.WideVersion, "year": time.Now().Year(), "embed": embed}
+		"code": template.HTML(code), "ver": conf.WideVersion, "year": time.Now().Year(),
+		"embed": embed, "disqus": disqus, "fileName": fileName}
 
 	wideSessions := session.WideSessions.GetByUsername(username)
 
diff --git a/views/playground/index.html b/views/playground/index.html
index ec204e7..fd85f8c 100644
--- a/views/playground/index.html
+++ b/views/playground/index.html
@@ -65,6 +65,19 @@
             </div>
             <textarea id="output" rows="20" readonly="readonly" ></textarea>
         </div>
+        {{if .disqus}}
+        <div id="disqus_thread"></div>
+        <script type="text/javascript">
+                    var disqus_shortname = 'wide-playground';
+                    var disqus_identifier = {{.fileName}};
+                    var disqus_url = window.location.protocol + "//" + {{.conf.Server}} + {{.conf.Context}} + "/playground/" + {{.fileName}}
+                    (function() {
+                    var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
+                            dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
+                            (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
+                    })();</script>
+        <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
+        {{end}}
         <div class="footer">
             <div class="wrapper">
                 Ver {{.ver}}, &copy; {{.year}} <a rel="copyright" href="http://b3log.org" target="_blank">B3LOG.ORG</a>
@@ -76,6 +89,7 @@
         <script>
                     var config = {
                     "context": "{{.conf.Context}}",
+                            "server": "{{.conf.Server}}",
                             "staticServer": "{{.conf.StaticServer}}",
                             "channel": "{{.conf.Channel}}",
                             "wideSessionId": "{{.session.ID}}",