*: add example-app

2016-08-08 16:32:42 -07:00
parent 5ce32838d8
commit 467d02738e
3 changed files with 311 additions and 1 deletions
--- a/cmd/example-app/templates.go
+++ b/cmd/example-app/templates.go
@@ -0,0 +1,82 @@
+package main
+
+import (
+	"html/template"
+	"log"
+	"net/http"
+)
+
+var indexTmpl = template.Must(template.New("index.html").Parse(`<html>
+  <body>
+    <form action="/login">
+       <p>
+         Authenticate for:<input type="text" name="cross_client" placeholder="list of client-ids">
+       </p>
+       <p>
+         Extra scopes:<input type="text" name="extra_scopes" placeholder="list of scopes">
+       </p>
+       <input type="submit" value="Login">
+    </form>
+  </body>
+</html>`))
+
+func renderIndex(w http.ResponseWriter) {
+	renderTemplate(w, indexTmpl, nil)
+}
+
+type tokenTmplData struct {
+	IDToken      string
+	RefreshToken string
+	RedirectURL  string
+	Claims       string
+}
+
+var tokenTmpl = template.Must(template.New("token.html").Parse(`<html>
+  <head>
+    <style>
+/* make pre wrap */
+pre {
+ white-space: pre-wrap;       /* css-3 */
+ white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
+ white-space: -pre-wrap;      /* Opera 4-6 */
+ white-space: -o-pre-wrap;    /* Opera 7 */
+ word-wrap: break-word;       /* Internet Explorer 5.5+ */
+}
+    </style>
+  </head>
+  <body>
+    <p> Token: <pre><code>{{ .IDToken }}</code></pre></p>
+    <p> Claims: <pre><code>{{ .Claims }}</code></pre></p>
+    <p> Refresh Token: <pre><code>{{ .RefreshToken }}</code></pre></p>
+    <p><a href="{{ .RedirectURL }}?refresh_token={{ .RefreshToken }}">Redeem refresh token</a><p>
+  </body>
+</html>
+`))
+
+func renderToken(w http.ResponseWriter, redirectURL, idToken, refreshToken string, claims []byte) {
+	renderTemplate(w, tokenTmpl, tokenTmplData{
+		IDToken:      idToken,
+		RefreshToken: refreshToken,
+		RedirectURL:  redirectURL,
+		Claims:       string(claims),
+	})
+}
+
+func renderTemplate(w http.ResponseWriter, tmpl *template.Template, data interface{}) {
+	err := tmpl.Execute(w, data)
+	if err == nil {
+		return
+	}
+
+	switch err := err.(type) {
+	case *template.Error:
+		// An ExecError guarentees that Execute has not written to the underlying reader.
+		log.Printf("Error rendering template %s: %s", tmpl.Name(), err)
+
+		// TODO(ericchiang): replace with better internal server error.
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+	default:
+		// An error with the underlying write, such as the connection being
+		// dropped. Ignore for now.
+	}
+}