guestbook/cmd/web/handlers.go

315 lines
11 KiB
Go

package main
import (
"errors"
"fmt"
"net/http"
"git.32bit.cafe/32bitcafe/guestbook/internal/models"
"git.32bit.cafe/32bitcafe/guestbook/internal/validator"
)
func (app *application) home(w http.ResponseWriter, r *http.Request) {
data := app.newTemplateData(r)
app.render(w, r, http.StatusOK, "home.tmpl.html", data)
}
type userRegistrationForm struct {
Name string `schema:"username"`
Email string `schema:"email"`
Password string `schema:"password"`
validator.Validator `schema:"-"`
}
func (app *application) getUserRegister(w http.ResponseWriter, r *http.Request) {
data := app.newTemplateData(r)
data.Form = userRegistrationForm{}
app.render(w, r, http.StatusOK, "usercreate.view.tmpl.html", data)
}
func (app *application) postUserRegister(w http.ResponseWriter, r *http.Request) {
var form userRegistrationForm
err := app.decodePostForm(r, &form)
if err != nil {
app.clientError(w, http.StatusBadRequest)
return
}
form.CheckField(validator.NotBlank(form.Name), "name", "This field cannot be blank")
form.CheckField(validator.NotBlank(form.Email), "email", "This field cannot be blank")
form.CheckField(validator.Matches(form.Email, validator.EmailRX), "email", "This field must be a valid email address")
form.CheckField(validator.NotBlank(form.Password), "password", "This field cannot be blank")
form.CheckField(validator.MinChars(form.Password, 8), "password", "This field must be at least 8 characters long")
if !form.Valid() {
data := app.newTemplateData(r)
data.Form = form
app.render(w, r, http.StatusUnprocessableEntity, "usercreate.view.tmpl.html", data)
return
}
shortId := app.createShortId()
err = app.users.Insert(shortId, form.Name, form.Email, form.Password)
if err != nil {
if errors.Is(err, models.ErrDuplicateEmail) {
form.AddFieldError("email", "Email address is already in use")
data := app.newTemplateData(r)
data.Form = form
app.render(w ,r, http.StatusUnprocessableEntity, "usercreate.view.tmpl.html", data)
} else {
app.serverError(w, r, err)
}
return
}
app.sessionManager.Put(r.Context(), "flash", "Registration successful. Please log in.")
http.Redirect(w, r, "/users/login", http.StatusSeeOther)
}
type userLoginForm struct {
Email string `schema:"email"`
Password string `schema:"password"`
validator.Validator `schema:"-"`
}
func (app *application) getUserLogin(w http.ResponseWriter, r *http.Request) {
data := app.newTemplateData(r)
data.Form = userLoginForm{}
app.render(w, r, http.StatusOK, "login.view.tmpl.html", data)
}
func (app *application) postUserLogin(w http.ResponseWriter, r *http.Request) {
var form userLoginForm
err := app.decodePostForm(r, &form)
if err != nil {
app.clientError(w, http.StatusBadRequest)
}
form.CheckField(validator.NotBlank(form.Email), "email", "This field cannot be blank")
form.CheckField(validator.Matches(form.Email, validator.EmailRX), "email", "This field must be a valid email address")
form.CheckField(validator.NotBlank(form.Password), "password", "This field cannot be blank")
if !form.Valid() {
data := app.newTemplateData(r)
data.Form = userLoginForm{}
app.render(w, r, http.StatusUnprocessableEntity, "login.view.tmpl.html", data)
return
}
id, err := app.users.Authenticate(form.Email, form.Password)
if err != nil {
if errors.Is(err, models.ErrInvalidCredentials) {
form.AddNonFieldError("Email or password is incorrect")
data := app.newTemplateData(r)
data.Form = form
app.render(w, r, http.StatusUnprocessableEntity, "login.view.tmpl.html", data)
} else {
app.serverError(w, r, err)
}
return
}
err = app.sessionManager.RenewToken(r.Context())
if err != nil {
app.serverError(w, r, err)
return
}
app.sessionManager.Put(r.Context(), "authenticatedUserId", id)
http.Redirect(w, r, "/", http.StatusSeeOther)
}
func (app *application) postUserLogout(w http.ResponseWriter, r *http.Request) {
err := app.sessionManager.RenewToken(r.Context())
if err != nil {
app.serverError(w, r, err)
return
}
app.sessionManager.Remove(r.Context(), "authenticatedUserId")
app.sessionManager.Put(r.Context(), "flash", "You've been logged out successfully!")
http.Redirect(w, r, "/", http.StatusSeeOther)
}
func (app *application) getUsersList(w http.ResponseWriter, r *http.Request) {
users, err := app.users.GetAll()
if err != nil {
app.serverError(w, r, err)
return
}
data := app.newTemplateData(r)
data.Users = users
app.render(w, r, http.StatusOK, "userlist.view.tmpl.html", data)
}
func (app *application) getUser(w http.ResponseWriter, r *http.Request) {
slug := r.PathValue("id")
user, err := app.users.Get(slugToShortId(slug))
if err != nil {
if errors.Is(err, models.ErrNoRecord) {
http.NotFound(w, r)
} else {
app.serverError(w, r, err)
}
return
}
data := app.newTemplateData(r)
data.User = user
app.render(w, r, http.StatusOK, "user.view.tmpl.html", data)
}
func (app *application) getGuestbookCreate(w http.ResponseWriter, r* http.Request) {
data := app.newTemplateData(r)
app.render(w, r, http.StatusOK, "guestbookcreate.view.tmpl.html", data)
}
func (app *application) postGuestbookCreate(w http.ResponseWriter, r* http.Request) {
err := r.ParseForm()
if err != nil {
app.serverError(w, r, err)
return
}
siteUrl := r.Form.Get("siteurl")
shortId := app.createShortId()
_, err = app.guestbooks.Insert(shortId, siteUrl, 0)
if err != nil {
app.serverError(w, r, err)
return
}
app.sessionManager.Put(r.Context(), "flash", "Guestbook successfully created!")
http.Redirect(w, r, fmt.Sprintf("/guestbooks/%s", shortIdToSlug(shortId)), http.StatusSeeOther)
}
func (app *application) getGuestbookList(w http.ResponseWriter, r *http.Request) {
userId := app.sessionManager.GetInt64(r.Context(), "authenticatedUserId")
guestbooks, err := app.guestbooks.GetAll(userId)
if err != nil {
app.serverError(w, r, err)
return
}
user, err := app.users.GetById(userId)
if err != nil {
app.serverError(w, r, err)
return
}
data := app.newTemplateData(r)
data.Guestbooks = guestbooks
data.User = user
app.render(w, r, http.StatusOK, "guestbooklist.view.tmpl.html", data)
}
func (app *application) getGuestbook(w http.ResponseWriter, r *http.Request) {
slug := r.PathValue("id")
guestbook, err := app.guestbooks.Get(slugToShortId(slug))
if err != nil {
if errors.Is(err, models.ErrNoRecord) {
http.NotFound(w, r)
} else {
app.serverError(w, r, err)
}
return
}
comments, err := app.guestbookComments.GetAll(guestbook.ID)
if err != nil {
app.serverError(w, r, err)
return
}
data := app.newTemplateData(r)
data.Guestbook = guestbook
data.Comments = comments
app.render(w, r, http.StatusOK, "guestbook.view.tmpl.html", data)
}
func (app *application) getGuestbookComments(w http.ResponseWriter, r *http.Request) {
slug := r.PathValue("id")
guestbook, err := app.guestbooks.Get(slugToShortId(slug))
if err != nil {
if errors.Is(err, models.ErrNoRecord) {
http.NotFound(w, r)
} else {
app.serverError(w, r, err)
}
return
}
comments, err := app.guestbookComments.GetAll(guestbook.ID)
if err != nil {
app.serverError(w, r, err)
return
}
data := app.newTemplateData(r)
data.Guestbook = guestbook
data.Comments = comments
app.render(w, r, http.StatusOK, "commentlist.view.tmpl.html", data)
}
type commentCreateForm struct {
AuthorName string `schema:"authorname"`
AuthorEmail string `schema:"authoremail"`
AuthorSite string `schema:"authorsite"`
Content string `schema:"content,required"`
validator.Validator `schema:"-"`
}
func (app *application) getGuestbookCommentCreate(w http.ResponseWriter, r *http.Request) {
slug := r.PathValue("id")
guestbook, err := app.guestbooks.Get(slugToShortId(slug))
if err != nil {
if errors.Is(err, models.ErrNoRecord) {
http.NotFound(w, r)
} else {
app.serverError(w, r, err)
}
return
}
data := app.newTemplateData(r)
data.Guestbook = guestbook
data.Form = commentCreateForm{}
app.render(w, r, http.StatusOK, "commentcreate.view.tmpl.html", data)
}
func (app *application) postGuestbookCommentCreate(w http.ResponseWriter, r *http.Request) {
guestbookSlug := r.PathValue("id")
guestbook, err := app.guestbooks.Get(slugToShortId(guestbookSlug))
if err != nil {
if errors.Is(err, models.ErrNoRecord) {
http.NotFound(w, r)
} else {
app.serverError(w, r, err)
}
return
}
var form commentCreateForm
err = app.decodePostForm(r, &form)
if err != nil {
app.clientError(w, http.StatusBadRequest)
return
}
form.CheckField(validator.NotBlank(form.AuthorName), "authorName", "This field cannot be blank")
form.CheckField(validator.MaxChars(form.AuthorName, 256), "authorName", "This field cannot be more than 256 characters long")
form.CheckField(validator.NotBlank(form.AuthorEmail), "authorEmail", "This field cannot be blank")
form.CheckField(validator.MaxChars(form.AuthorEmail, 256), "authorEmail", "This field cannot be more than 256 characters long")
form.CheckField(validator.NotBlank(form.AuthorSite), "authorSite", "This field cannot be blank")
form.CheckField(validator.MaxChars(form.AuthorSite, 256), "authorSite", "This field cannot be more than 256 characters long")
form.CheckField(validator.NotBlank(form.Content), "content", "This field cannot be blank")
if !form.Valid() {
data := app.newTemplateData(r)
data.Guestbook = guestbook
data.Form = form
app.render(w, r, http.StatusUnprocessableEntity, "commentcreate.view.tmpl.html", data)
return
}
shortId := app.createShortId()
_, err = app.guestbookComments.Insert(shortId, guestbook.ID, 0, form.AuthorName, form.AuthorEmail, form.AuthorSite, form.Content, "", true)
if err != nil {
app.serverError(w, r, err)
return
}
app.sessionManager.Put(r.Context(), "flash", "Comment successfully posted!")
http.Redirect(w, r, fmt.Sprintf("/guestbooks/%s", guestbookSlug), http.StatusSeeOther)
}