signup form handler

Author: avoidik

cmd/web/handlers.go

@@ -115,11 +115,30 @@ func DisableIndex(next http.Handler) http.Handler {
 }
 
 func (app *App) SignupUser(w http.ResponseWriter, r *http.Request) {
-	fmt.Fprint(w, "SignupUser")
+	app.RenderHtml(w, r, "signup.page.html", &HtmlData{
+		Form: &forms.SignupUser{},
+	})
 }
 
 func (app *App) CreateUser(w http.ResponseWriter, r *http.Request) {
-	fmt.Fprint(w, "CreateUser")
+	err := r.ParseForm()
+	if err != nil {
+		app.ClientError(w, http.StatusBadRequest)
+		return
+	}
+
+	form := &forms.SignupUser{
+		Name:     r.PostForm.Get("name"),
+		Email:    r.PostForm.Get("email"),
+		Password: r.PostForm.Get("password"),
+	}
+
+	if !form.Valid() {
+		app.RenderHtml(w, r, "signup.page.html", &HtmlData{Form: form})
+		return
+	}
+
+	fmt.Fprintf(w, "CreateUser")
 }
 
 func (app *App) LoginUser(w http.ResponseWriter, r *http.Request) {

pkg/forms/forms.go

@@ -1,16 +1,27 @@
 package forms
 
 import (
+	"regexp"
 	"strings"
+	"unicode/utf8"
 )
 
+var rxEmail = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
+
 type NewSnippet struct {
 	Title    string
 	Content  string
 	Expires  string
 	Failures map[string]string
 }
 
+type SignupUser struct {
+	Name     string
+	Email    string
+	Password string
+	Failures map[string]string
+}
+
 func (ns *NewSnippet) Valid() bool {
 	ns.Failures = make(map[string]string)
 
@@ -33,3 +44,27 @@ func (ns *NewSnippet) Valid() bool {
 
 	return len(ns.Failures) == 0
 }
+
+func (su *SignupUser) Valid() bool {
+	su.Failures = make(map[string]string)
+
+	if len(strings.TrimSpace(su.Name)) == 0 {
+		su.Failures["Name"] = "Name is required"
+	} else if len(strings.TrimSpace(su.Name)) > 50 || len(strings.TrimSpace(su.Name)) < 3 {
+		su.Failures["Name"] = "Name cannot be longer than 50 and shorter than 3 characters"
+	}
+
+	if len(strings.TrimSpace(su.Email)) == 0 {
+		su.Failures["Email"] = "Email is required"
+	} else if len(strings.TrimSpace(su.Email)) > 254 || !rxEmail.MatchString(su.Email) {
+		su.Failures["Email"] = "Email is not valid"
+	}
+
+	if len(strings.TrimSpace(su.Password)) == 0 {
+		su.Failures["Password"] = "Password is required"
+	} else if utf8.RuneCountInString(su.Password) < 8 {
+		su.Failures["Password"] = "Password is too short"
+	}
+
+	return len(su.Failures) == 0
+}

ui/html/signup.page.html

@@ -0,0 +1,36 @@
+{{define "page-title"}}Signup{{end}}
+
+{{define "page-body"}}
+<form action="/user/signup" method="POST" novalidate>
+    {{with .Form}}
+        <div>
+            <label>Name:</label>
+            {{with .Failures.Name}}
+            <label class="error">{{.}}</label>
+            {{end}}
+            <input type="text" name="name" value="{{.Name}}">
+        </div>
+        <div>
+            <label>Email:</label>
+            {{with .Failures.Email}}
+            <label class="error">{{.}}</label>
+            {{end}}
+            <input type="email" name="email" value="{{.Email}}">
+        </div>
+        <div>
+            <label>Password:</label>
+            {{with .Failures.Password}}
+            <label class="error">{{.}}</label>
+            {{end}}
+            <input type="password" name="password">            
+        </div>
+        <div>
+            <input type="submit" value="Signup">
+        </div>
+    {{end}}
+</form>
+{{- end}}
+
+{{define "page-footer"}}
+Be prepared for initiation!
+{{- end}}