func WelcomeHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Http METHOD: %v", r.Method)
if r.Method == "GET" {
username := r.FormValue("username")
if err := welcomeTemplate.Execute(w, username); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else {
tools.Error404(w)
return
}
}
func DateHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Http METHOD: %v", r.Method)
if r.Method == "GET" {
date := Date{
Month: "",
Day: "",
Year: "",
}
if err := dateTemplate.Execute(w, date); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else if r.Method == "POST" {
d := Date{
Month: validMonth(r.FormValue("month")),
Day: validDay(r.FormValue("day")),
Year: validYear(r.FormValue("year")),
}
if d.Day == "" || d.Month == "" || d.Year == "" {
d.Error = "That's an error!"
if err := dateTemplate.Execute(w, d); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
http.Redirect(w, r, "/unit1/thanks", http.StatusFound)
} else {
tools.Error404(w)
return
}
}
func ThanksHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Http METHOD: %v", r.Method)
if r.Method == "GET" {
fmt.Fprint(w, "Thanks! That's a totally valid date!")
} else {
tools.Error404(w)
return
}
}
// Rot13Handler is the HTTP handler for encoding and decoding (rot13(rot13(x)) = x ) a string
func Rot13Handler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: HTTP METHOD: %v", r.Method)
if r.Method == "GET" {
writeFormRot13(w, "")
} else if r.Method == "POST" {
var r13 Rot13 = Rot13(r.FormValue("text"))
c.Infof("cs253: Rot13 %v", r13.Encode())
writeFormRot13(w, r13.Encode())
} else {
tools.Error404(w)
return
}
}
// BlogFrontHandler is the HTTP handler for displaying the most recent posts.
func BlogFrontHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Method: %v", r.Method)
if r.Method == "GET" {
posts := models.RecentPosts(c)
c.Infof("cs253: Posts len: %v", len(posts))
for i, _ := range posts {
c.Infof("cs253: Post id: %v", posts[i].Id)
}
writeBlog(c, w, posts)
} else {
tools.Error404(w)
return
}
}
// SignupHandler is the HTTP handler to signup.
// It verifies the validity of the inputs writen by the user in the signup form.
func SignupHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Http METHOD: %v", r.Method)
if r.Method == "GET" {
s := Signup{}
writeFormSignup(w, s)
} else if r.Method == "POST" {
s := Signup{
Username: r.FormValue("username"),
Password: r.FormValue("password"),
Email: r.FormValue("email"),
Verify: r.FormValue("verify"),
ErrorUser: "",
ErrorPassword: "",
ErrorPasswordMatch: "",
ErrorEmail: "",
}
// verify signup info.
if !(tools.IsUsernameValid(s.Username) &&
tools.IsPasswordValid(s.Password) &&
s.Password == s.Verify) ||
(len(s.Email) > 0 && !tools.IsEmailValid(s.Email)) {
if !tools.IsUsernameValid(s.Username) {
s.ErrorUser = "******"
}
if !tools.IsPasswordValid(s.Password) {
s.ErrorPassword = "******"
}
if s.Password != s.Verify {
s.ErrorPasswordMatch = "Your passwords didn't match."
}
if len(s.Email) > 0 && !tools.IsEmailValid(s.Email) {
s.ErrorEmail = "That's not a valid email."
}
s.Password = ""
s.Verify = ""
writeFormSignup(w, s)
} else {
http.Redirect(w, r, "/unit2/welcome?username="+s.Username, http.StatusFound)
}
} else {
tools.Error404(w)
return
}
}
// NewPostHandler is the HTTP handler to create a new Post
func NewPostHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
c.Infof("cs253: Method: %v", r.Method)
if r.Method == "GET" {
writeNewPostForm(c, w, &NewPostForm{})
} else if r.Method == "POST" {
postForm := NewPostForm{
r.FormValue("subject"),
r.FormValue("content"),
"",
}
if !(tools.IsStringValid(postForm.Subject) &&
tools.IsStringValid(postForm.Content)) {
postForm.Error = "We need to set both a subject and some content"
writeNewPostForm(c, w, &postForm)
} else {
c.Infof("cs253: Blog new post:")
postID, _, _ := datastore.AllocateIDs(c, "Post", nil, 1)
key := datastore.NewKey(c, "Post", "", postID, nil)
p := models.Post{
postID,
postForm.Subject,
postForm.Content,
time.Now(),
}
key, err := datastore.Put(c, key, &p)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
c.Infof("cs253: Blog Key: %v", key.IntID())
// build url and redirect
permalinkURL := "/blog/" + strconv.FormatInt(p.Id, 10)
http.Redirect(w, r, permalinkURL, http.StatusFound)
}
} else {
tools.Error404(w)
return
}
}
// PermalinkHandler is the HTTP handler for displaying a single post.
// post information is retreive via the URL: /blog/postId
func PermalinkHandler(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
c.Infof("cs253: Requested URL: %v", r.URL)
if r.Method == "GET" {
path := strings.Split(r.URL.String(), "/")
intID, _ := strconv.ParseInt(path[2], 0, 64)
c.Infof("cs253: PATH : %v", intID)
// build post key
c.Infof("cs253: postAndTimeByID call : %v", intID)
postAndTime := models.PostAndTimeByID(c, intID)
c.Infof("cs253: postAndTimeByID done ! : %v", intID)
c.Infof("cs253: Post id: %v", postAndTime.Post.Id)
c.Infof("cs253: Cache hit time: %v", postAndTime.Cache_hit_time)
writePermalink(c, w, postAndTime)
} else {
tools.Error404(w)
return
}
}