short url web page v1

handler/account.go

@@ -0,0 +1,199 @@
+package handler
+
+import (
+	"database/sql"
+	"io/fs"
+	"net/http"
+	"time"
+
+	"github.com/zhang2092/go-url-shortener/db"
+	"github.com/zhang2092/go-url-shortener/pkg/cookie"
+	pwd "github.com/zhang2092/go-url-shortener/pkg/password"
+)
+
+type registerPageData struct {
+	Summary     string
+	Email       string
+	EmailMsg    string
+	Username    string
+	UsernameMsg string
+	Password    string
+	PasswordMsg string
+}
+
+func RegisterView(templates fs.FS) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		renderRegister(w, r, templates, nil)
+	}
+}
+
+func Register(templates fs.FS, store db.Store) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+
+		if err := r.ParseForm(); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		email := r.PostFormValue("email")
+		username := r.PostFormValue("username")
+		password := r.PostFormValue("password")
+		resp, ok := viladatorRegister(email, username, password)
+		if !ok {
+			renderRegister(w, r, templates, resp)
+			return
+		}
+
+		hashedPassword, err := pwd.BcryptHashPassword(password)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		arg := &db.CreateUserParams{
+			ID:             genId(),
+			Username:       username,
+			HashedPassword: hashedPassword,
+			Email:          email,
+		}
+
+		_, err = store.CreateUser(r.Context(), arg)
+		if err != nil {
+			if store.IsUniqueViolation(err) {
+				resp.Summary = "邮箱或名称已经存在"
+				renderRegister(w, r, templates, resp)
+				return
+			}
+
+			resp.Summary = "请求网络错误,请刷新重试"
+			renderRegister(w, r, templates, resp)
+			return
+		}
+
+		http.Redirect(w, r, "/login", http.StatusFound)
+	}
+}
+
+type loginPageData struct {
+	Summary     string
+	Email       string
+	EmailMsg    string
+	Password    string
+	PasswordMsg string
+}
+
+func LoginView(templates fs.FS) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		renderLogin(w, r, templates, nil)
+	}
+}
+
+func Login(templates fs.FS, store db.Store) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+
+		if err := r.ParseForm(); err != nil {
+			renderLogin(w, r, templates, registerPageData{Summary: "请求网络错误,请刷新重试"})
+			return
+		}
+
+		email := r.PostFormValue("email")
+		password := r.PostFormValue("password")
+		resp, ok := viladatorLogin(email, password)
+		if !ok {
+			renderLogin(w, r, templates, resp)
+			return
+		}
+
+		ctx := r.Context()
+		user, err := store.GetUserByEmail(ctx, email)
+		if err != nil {
+			if store.IsNoRows(sql.ErrNoRows) {
+				resp.Summary = "邮箱或密码错误"
+				renderLogin(w, r, templates, resp)
+				return
+			}
+
+			resp.Summary = "请求网络错误,请刷新重试"
+			renderLogin(w, r, templates, resp)
+			return
+		}
+
+		err = pwd.BcryptComparePassword(user.HashedPassword, password)
+		if err != nil {
+			resp.Summary = "邮箱或密码错误"
+			renderLogin(w, r, templates, resp)
+			return
+		}
+
+		encoded, err := secureCookie.Encode(AuthorizeCookie, &Authorize{ID: user.ID, Name: user.Username})
+		if err != nil {
+			resp.Summary = "请求网络错误,请刷新重试(cookie)"
+			renderLogin(w, r, templates, resp)
+			return
+		}
+
+		c := cookie.NewCookie(cookie.AuthorizeName, encoded, time.Now().Add(time.Duration(7200)*time.Second))
+		http.SetCookie(w, c)
+		http.Redirect(w, r, "/", http.StatusFound)
+	}
+}
+
+func Logout(templates fs.FS) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		cookie.DeleteCookie(w, cookie.AuthorizeName)
+		http.Redirect(w, r, "/login", http.StatusFound)
+	}
+}
+
+func renderRegister(w http.ResponseWriter, r *http.Request, templates fs.FS, data any) {
+	renderLayout(w, r, templates, data, "user/register.html.tmpl")
+}
+
+func renderLogin(w http.ResponseWriter, r *http.Request, templates fs.FS, data any) {
+	renderLayout(w, r, templates, data, "user/login.html.tmpl")
+}
+
+func viladatorRegister(email, username, password string) (registerPageData, bool) {
+	ok := true
+	resp := registerPageData{
+		Email:    email,
+		Username: username,
+		Password: password,
+	}
+
+	if !ValidateRxEmail(email) {
+		resp.EmailMsg = "请填写正确的邮箱地址"
+		ok = false
+	}
+	if !ValidateRxUsername(username) {
+		resp.UsernameMsg = "名称(6-20,字母,数字)"
+		ok = false
+	}
+	if !ValidatePassword(password) {
+		resp.PasswordMsg = "密码(8-20位)"
+		ok = false
+	}
+
+	return resp, ok
+}
+
+func viladatorLogin(email, password string) (loginPageData, bool) {
+	ok := true
+	errs := loginPageData{
+		Email:    email,
+		Password: password,
+	}
+
+	if !ValidateRxEmail(email) {
+		errs.EmailMsg = "请填写正确的邮箱地址"
+		ok = false
+	}
+	if len(password) == 0 {
+		errs.PasswordMsg = "请填写正确的密码"
+		ok = false
+	}
+
+	return errs, ok
+}

handler/base.go

@@ -0,0 +1,31 @@
+package handler
+
+import (
+	"github.com/google/uuid"
+	"github.com/gorilla/securecookie"
+)
+
+const (
+	AuthorizeCookie        = "authorize"
+	ContextUser     ctxKey = "context_user"
+)
+
+var (
+	secureCookie *securecookie.SecureCookie
+)
+
+type ctxKey string
+
+type Authorize struct {
+	ID   string `json:"id"`
+	Name string `json:"name"`
+}
+
+func genId() string {
+	id, _ := uuid.NewRandom()
+	return id.String()
+}
+
+func SetSecureCookie(sc *securecookie.SecureCookie) {
+	secureCookie = sc
+}

handler/handlers.go

@@ -1,78 +0,0 @@
-package handler
-
-import (
-	"encoding/json"
-	"net/http"
-
-	"github.com/gorilla/mux"
-	"github.com/zhang2092/go-url-shortener/shortener"
-	"github.com/zhang2092/go-url-shortener/store"
-)
-
-type UrlCreationRequest struct {
-	LongUrl string `json:"long_url"`
-	UserId  string `json:"user_id"`
-}
-
-type UrlCreationResponse struct {
-	Message  string `json:"message"`
-	ShortUrl string `json:"short_url"`
-}
-
-func CreateShortUrl(w http.ResponseWriter, r *http.Request) {
-	defer r.Body.Close()
-
-	var req UrlCreationRequest
-	err := json.NewDecoder(r.Body).Decode(&req)
-	if err != nil {
-		http.Error(w, "invalid parameter", http.StatusInternalServerError)
-		return
-	}
-
-	shortUrl, err := shortener.GenerateShortLink(req.LongUrl, req.UserId)
-	if err != nil {
-		http.Error(w, "failed to generate short link", http.StatusInternalServerError)
-		return
-	}
-
-	err = store.SaveUrlMapping(shortUrl, req.LongUrl, req.UserId)
-	if err != nil {
-		http.Error(w, "failed to store url mapping", http.StatusInternalServerError)
-		return
-	}
-
-	scheme := "http://"
-	if r.TLS != nil {
-		scheme = "https://"
-	}
-
-	res := &UrlCreationResponse{
-		Message:  "short url created successfully",
-		ShortUrl: scheme + r.Host + "/" + shortUrl,
-	}
-
-	b, err := json.Marshal(res)
-	if err != nil {
-		http.Error(w, "internal error", http.StatusInternalServerError)
-		return
-	}
-
-	w.WriteHeader(http.StatusOK)
-	w.Write(b)
-}
-
-func HandleShortUrlRedirect(w http.ResponseWriter, r *http.Request) {
-	vars := mux.Vars(r)
-	shorUrl := vars["shortUrl"]
-	link, err := store.RetrieveInitialUrl(shorUrl)
-	if err != nil {
-		http.Error(w, "failed to get url", http.StatusInternalServerError)
-		return
-	}
-	if len(link) == 0 {
-		http.Error(w, "short url get to long url is empty", http.StatusInternalServerError)
-		return
-	}
-
-	http.Redirect(w, r, link, http.StatusFound)
-}

handler/home.go

@@ -0,0 +1,28 @@
+package handler
+
+import (
+	"io/fs"
+	"net/http"
+
+	"github.com/zhang2092/go-url-shortener/db"
+)
+
+func HomeView(templates fs.FS, store db.Store) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		ctx := r.Context()
+		user := withUser(ctx)
+		result, err := store.ListUrlByUser(ctx, user.ID)
+		if err != nil {
+			renderLayout(w, r, templates, nil, "home.html.tmpl")
+		}
+
+		scheme := "http://"
+		if r.TLS != nil {
+			scheme = "https://"
+		}
+		for _, item := range result {
+			item.ShortUrl = scheme + r.Host + "/" + item.ShortUrl
+		}
+		renderLayout(w, r, templates, result, "home.html.tmpl")
+	}
+}

handler/middleware.go

@@ -0,0 +1,48 @@
+package handler
+
+import (
+	"context"
+	"net/http"
+)
+
+func MyAuthorize(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		u := withUser(r.Context())
+		if u == nil {
+			http.Redirect(w, r, "/login", http.StatusFound)
+			return
+		}
+
+		next.ServeHTTP(w, r)
+	})
+}
+
+func SetUser(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		cookie, err := r.Cookie(AuthorizeCookie)
+		if err != nil {
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		u := Authorize{}
+		err = secureCookie.Decode(AuthorizeCookie, cookie.Value, &u)
+		if err != nil {
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		ctx := r.Context()
+		ctx = context.WithValue(ctx, ContextUser, u)
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}
+
+func withUser(ctx context.Context) *Authorize {
+	val := ctx.Value(ContextUser)
+	if u, ok := val.(Authorize); ok {
+		return &u
+	}
+
+	return nil
+}

handler/render.go

@@ -0,0 +1,38 @@
+package handler
+
+import (
+	"html/template"
+	"io/fs"
+	"net/http"
+	"path/filepath"
+
+	"github.com/gorilla/csrf"
+	"github.com/zhang2092/go-url-shortener/pkg/logger"
+)
+
+// renderLayout 渲染方法 带框架
+func renderLayout(w http.ResponseWriter, r *http.Request, templates fs.FS, data any, tmpl string) {
+	t := template.New(filepath.Base(tmpl))
+	t = t.Funcs(template.FuncMap{
+		"csrfField": func() template.HTML {
+			return csrf.TemplateField(r)
+		},
+		"currentUser": func() *Authorize {
+			return withUser(r.Context())
+		},
+	})
+
+	tpl := template.Must(t.Clone())
+	tpl, err := tpl.ParseFS(templates, tmpl, "base/header.html.tmpl", "base/footer.html.tmpl")
+	if err != nil {
+		logger.Logger.Errorf("template parse: %s, %v", tmpl, err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	if err := tpl.Execute(w, data); err != nil {
+		logger.Logger.Errorf("template execute: %s, %v", tmpl, err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+}

handler/short_url.go

@@ -0,0 +1,80 @@
+package handler
+
+import (
+	"io/fs"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/gorilla/mux"
+	"github.com/zhang2092/go-url-shortener/db"
+	"github.com/zhang2092/go-url-shortener/service"
+	"github.com/zhang2092/go-url-shortener/shortener"
+)
+
+func CreateShortUrlView(templates fs.FS) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		renderLayout(w, r, templates, nil, "short_url/create.html.tmpl")
+	}
+}
+
+func CreateShortUrl(templates fs.FS, store db.Store) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		defer r.Body.Close()
+
+		if err := r.ParseForm(); err != nil {
+			renderCreateShortUrl(w, r, templates, map[string]string{"Error": "请求参数错误"})
+			return
+		}
+
+		ctx := r.Context()
+		user := withUser(ctx)
+		longUrl := r.PostFormValue("long_url")
+		shortUrl, err := shortener.GenerateShortLink(longUrl, user.ID)
+		if err != nil {
+			renderCreateShortUrl(w, r, templates, map[string]string{"Error": "生成短路径错误"})
+			return
+		}
+
+		log.Println(shortUrl)
+
+		_, err = store.CreateUserUrl(ctx, &db.CreateUserUrlParams{
+			UserID:    user.ID,
+			ShortUrl:  shortUrl,
+			OriginUrl: longUrl,
+			ExpireAt:  time.Now().Add(time.Hour * 6),
+		})
+		if err != nil {
+			renderCreateShortUrl(w, r, templates, map[string]string{"Error": "短路径存储错误"})
+			return
+		}
+
+		err = service.SaveUrlMapping(shortUrl, longUrl, user.ID)
+		if err != nil {
+			renderCreateShortUrl(w, r, templates, map[string]string{"Error": "短路径存储错误"})
+			return
+		}
+
+		http.Redirect(w, r, "/", http.StatusFound)
+	}
+}
+
+func HandleShortUrlRedirect(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	shorUrl := vars["shortUrl"]
+	link, err := service.RetrieveInitialUrl(shorUrl)
+	if err != nil {
+		http.Error(w, "failed to get url", http.StatusInternalServerError)
+		return
+	}
+	if len(link) == 0 {
+		http.Error(w, "short url get to long url is empty", http.StatusInternalServerError)
+		return
+	}
+
+	http.Redirect(w, r, link, http.StatusFound)
+}
+
+func renderCreateShortUrl(w http.ResponseWriter, r *http.Request, templates fs.FS, data any) {
+	renderLayout(w, r, templates, data, "short_url/create.html.tmpl")
+}

handler/validator.go

@@ -0,0 +1,38 @@
+package handler
+
+import (
+	"regexp"
+	"strings"
+)
+
+var (
+	rxPhone    = regexp.MustCompile(`^(13|14|15|16|17|18|19)\d{9}$`)
+	rxEmail    = regexp.MustCompile(`\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*`)
+	rxUsername = regexp.MustCompile(`^[a-z0-9A-Z]{6,20}$`) // 6到20位（字母，数字）
+	//rxPassword = regexp.MustCompile(`^(?=.*[a-zA-Z])(?=.*[0-9])[A-Za-z0-9]{8,18}$`) // 最少6位，包括至少1个大写字母，1个小写字母，1个数字，1个特殊字符
+)
+
+func ValidateRxPhone(phone string) bool {
+	phone = strings.TrimSpace(phone)
+	return rxPhone.MatchString(phone)
+}
+
+func ValidateRxEmail(email string) bool {
+	email = strings.TrimSpace(email)
+	return rxEmail.MatchString(email)
+}
+
+func ValidateRxUsername(username string) bool {
+	username = strings.TrimSpace(username)
+	return rxUsername.MatchString(username)
+}
+
+// func ValidateRxPassword(password string) bool {
+// 	password = strings.TrimSpace(password)
+// 	return rxPassword.MatchString(password)
+// }
+
+func ValidatePassword(password string) bool {
+	password = strings.TrimSpace(password)
+	return len(password) >= 8 && len(password) <= 20
+}