forked from go-cas/cas
/
example_test.go
127 lines (102 loc) · 2.1 KB
/
example_test.go
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package cas
import (
"bytes"
"flag"
"fmt"
"html/template"
"net/http"
"net/url"
"github.com/golang/glog"
)
type myHandler struct{}
var MyHandler = &myHandler{}
var casURL string
func init() {
flag.StringVar(&casURL, "url", "", "CAS server URL")
}
func main() {
Example()
}
func Example() {
flag.Parse()
if casURL == "" {
flag.Usage()
return
}
glog.Info("Starting up")
m := http.NewServeMux()
m.Handle("/", MyHandler)
url, _ := url.Parse(casURL)
client := NewClient(&Options{
URL: url,
})
server := &http.Server{
Addr: ":8080",
Handler: client.Handle(m),
}
if err := server.ListenAndServe(); err != nil {
glog.Infof("Error from HTTP Server: %v", err)
}
glog.Info("Shutting down")
}
type templateBinding struct {
Username string
Attributes UserAttributes
}
func (h *myHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
if !IsAuthenticated(r) {
RedirectToLogin(w, r)
return
}
if r.URL.Path == "/logout" {
RedirectToLogout(w, r)
return
}
w.Header().Add("Content-Type", "text/html")
tmpl, err := template.New("index.html").Parse(index_html)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, error_500, err)
return
}
binding := &templateBinding{
Username: Username(r),
Attributes: Attributes(r),
}
html := new(bytes.Buffer)
if err := tmpl.Execute(html, binding); err != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(w, error_500, err)
return
}
html.WriteTo(w)
}
const index_html = `<!DOCTYPE html>
<html>
<head>
<title>Welcome {{.Username}}</title>
</head>
<body>
<h1>Welcome {{.Username}} <a href="/logout">Logout</a></h1>
<p>Your attributes are:</p>
<ul>{{range $key, $values := .Attributes}}
<li>{{$len := len $values}}{{$key}}:{{if gt $len 1}}
<ul>{{range $values}}
<li>{{.}}</li>{{end}}
</ul>
{{else}} {{index $values 0}}{{end}}</li>{{end}}
</ul>
</body>
</html>
`
const error_500 = `<!DOCTYPE html>
<html>
<head>
<title>Error 500</title>
</head>
<body>
<h1>Error 500</h1>
<p>%v</p>
</body>
</html>
`