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example_test.go
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// Copyright 2012 Robert W. Johnstone. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package httpauth
import (
"fmt"
"net/http"
"time"
)
func ExampleNewBasic() {
const port = ":8080"
// Create an authorization policy that uses the basic authorization
// scheme. The credientials will be considered valid if the password
// is simply the username repeated twice.
auth := NewBasic("My Website", func(username, password string) bool {
return password == username+username
}, nil)
// The request handler
http.HandleFunc("/example/", func(w http.ResponseWriter, r *http.Request) {
// Check if the client is authorized
username := auth.Authorize(r)
if username == "" {
// Oops! Access denied.
auth.NotifyAuthRequired(w, r)
return
}
fmt.Fprintf(w, "<html><body><h1>Hello</h1><p>Welcome, %s</p></body></html>", username)
})
// This is just an example. Run the HTTP server for a second and then quit.
go http.ListenAndServe(port, nil)
time.Sleep(1 * time.Second)
}
func ExamplePasswordLookup_Authenticator() {
// Create a dummy PasswordLookup for this example.
pl := PasswordLookup(func(username string) string {
// A user's password is their username with the digit '9' added
return username + "9"
})
// To use the basic authentication scheme, we need an Authenicator
auth := pl.Authenticator()
// Create a authentication scheme
_ /*policy*/ = NewBasic("My Website", auth, nil)
}
func ExampleNewCookie() {
const port = ":8080"
// Create an authorization policy that uses the cookie authorization
// scheme. The credientials will be considered valid if the password
// is simply the username repeated twice.
auth := NewCookie("My Website", "/login", func(username, password string) bool {
return password == username+username
})
// The request handler
http.HandleFunc("/example/", func(w http.ResponseWriter, r *http.Request) {
// Check if the client is authorized
username := auth.Authorize(r)
if username == "" {
// Oops! Access denied.
// This will redirect the HTTP client to the path /login.
auth.NotifyAuthRequired(w, r)
return
}
fmt.Fprintf(w, "<html><body><h1>Hello</h1><p>Welcome, %s</p></body></html>", username)
})
http.HandleFunc("/login/", func(w http.ResponseWriter, r *http.Request) {
// Get the username and password from the request. This will
// depend on the callee, but could be as simple as calling
// ParseFrom on the request.
username := /* implementation specific */ "user1"
password := /* implementation specific */ "password1"
err := auth.Login(w, username, password)
if err == ErrBadUsernameOrPassword {
http.Error(w, "Someone is misbehaving.", http.StatusUnauthorized)
return
}
if err != nil {
http.Error(w, "Internal server error.", http.StatusInternalServerError)
return
}
http.Redirect(w, r, "/example", http.StatusTemporaryRedirect)
})
// This is just an example. Run the HTTP server for a second and then quit.
go http.ListenAndServe(port, nil)
time.Sleep(1 * time.Second)
}