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-rw-r--r--login.go115
-rw-r--r--main.go6
-rw-r--r--tpls.go2
-rw-r--r--tpls/login.tpl17
4 files changed, 140 insertions, 0 deletions
diff --git a/login.go b/login.go
new file mode 100644
index 0000000..f678216
--- /dev/null
+++ b/login.go
@@ -0,0 +1,115 @@
+package main
+
+import (
+ "code.google.com/p/go.crypto/bcrypt"
+ "github.com/gorilla/sessions"
+ "kch42.de/gostuff/mailremind/model"
+ "log"
+ "net/http"
+)
+
+type loginTpldata struct {
+ Error, Success string
+}
+
+type loginFormdata struct {
+ Mail, Password string
+}
+
+func userFromSess(sess *sessions.Session) model.User {
+ _id, ok := sess.Values["uid"]
+ if !ok {
+ return nil
+ }
+
+ id, ok := _id.(string)
+ if !ok {
+ return nil
+ }
+
+ uid, err := db.ParseDBID(id)
+ if err != nil {
+ return nil
+ }
+
+ user, err := dbcon.UserByID(uid)
+ if err != nil {
+ return nil
+ }
+
+ return user
+}
+
+func login(rw http.ResponseWriter, req *http.Request) {
+ outdata := &loginTpldata{}
+ defer func() {
+ if err := tplLogin.Execute(rw, outdata); err != nil {
+ log.Printf("Error executing template in login: %s", err)
+ }
+ }()
+
+ sess, err := SessionStorage.Get(req, "mailremind-sess")
+ if err != nil {
+ sess, _ = SessionStorage.New(req, "mailremind-sess")
+ }
+ defer func() {
+ if err := sess.Save(req, rw); err != nil {
+ log.Printf("Error while saving session: %s", err)
+ outdata.Success = ""
+ outdata.Error = "Error while saving session."
+ return
+ }
+ }()
+
+ if user := userFromSess(sess); user != nil {
+ outdata.Success = "You are already logged in"
+ return
+ }
+
+ if req.Method != "POST" {
+ return
+ }
+
+ if err := req.ParseForm(); err != nil {
+ outdata.Error = "Data of form could not be understand. If this happens again, please contact support!"
+ return
+ }
+
+ indata := new(loginFormdata)
+ if err := formdec.Decode(indata, req.Form); (err != nil) || (indata.Mail == "") || (indata.Password == "") {
+ outdata.Error = "Input data wrong or missing. Please fill in all values."
+ return
+ }
+
+ user, err := dbcon.UserByMail(indata.Mail)
+ switch err {
+ case nil:
+ case model.NotFound:
+ outdata.Error = "E-Mail or password was wrong."
+ return
+ default:
+ log.Printf("Error while loding user data (login): %s", err)
+ outdata.Error = "User data could not be loaded. Please contact support, if this happens again."
+ return
+ }
+
+ if bcrypt.CompareHashAndPassword(user.PWHash(), []byte(indata.Password)) != nil {
+ outdata.Error = "E-Mail or password was wrong."
+ return
+ }
+
+ sess.Values["uid"] = user.ID().String()
+ outdata.Success = "Login successful"
+}
+
+func logincheck(rw http.ResponseWriter, req *http.Request) {
+ sess, _ := SessionStorage.Get(req, "mailremind-sess")
+ user := userFromSess(sess)
+ outdata := new(msgTpldata)
+ if user == nil {
+ outdata.Msg = "<nil>"
+ } else {
+ outdata.Msg = user.Email()
+ }
+ tplMsg.Execute(rw, outdata)
+}
diff --git a/main.go b/main.go
index 4eb58c2..8af1fc1 100644
--- a/main.go
+++ b/main.go
@@ -4,6 +4,8 @@ import (
"flag"
"fmt"
"github.com/gorilla/mux"
+ "github.com/gorilla/securecookie"
+ "github.com/gorilla/sessions"
"github.com/kch42/simpleconf"
_ "kch42.de/gostuff/mailremind/model/mysql"
"log"
@@ -17,6 +19,8 @@ func debug(rw http.ResponseWriter, req *http.Request) {
var conf simpleconf.Config
var baseurl string
+var SessionStorage = sessions.NewCookieStore(securecookie.GenerateRandomKey(32), securecookie.GenerateRandomKey(32))
+
func main() {
confpath := flag.String("config", "", "Path to config file")
flag.Parse()
@@ -51,6 +55,8 @@ func main() {
router.PathPrefix("/static").Handler(http.StripPrefix("/static/", http.FileServer(http.Dir(staticpath))))
router.HandleFunc("/register", register)
router.HandleFunc("/activate", activate)
+ router.HandleFunc("/login", login)
+ router.HandleFunc("/logincheck", logincheck)
http.Handle("/", router)
diff --git a/tpls.go b/tpls.go
index 846bdda..10f4322 100644
--- a/tpls.go
+++ b/tpls.go
@@ -19,6 +19,7 @@ func loadTpl(tplpath, name string) *template.Template {
var (
tplRegister *template.Template
tplMsg *template.Template
+ tplLogin *template.Template
)
func initTpls() {
@@ -29,6 +30,7 @@ func initTpls() {
tplRegister = loadTpl(tplpath, "register")
tplMsg = loadTpl(tplpath, "msg")
+ tplLogin = loadTpl(tplpath, "login")
}
type msgTpldata struct {
diff --git a/tpls/login.tpl b/tpls/login.tpl
new file mode 100644
index 0000000..34541e4
--- /dev/null
+++ b/tpls/login.tpl
@@ -0,0 +1,17 @@
+{{define "title"}}Login{{end}}
+
+{{define "content"}}
+ {{if .Error}}
+ <div class="error">{{.Error}}</div>
+ {{end}}
+
+ {{if .Success}}
+ <div class="success">{{.Success}}</div>
+ {{else}}
+ <form action="/login" method="post" accept-charset="UTF-8">
+ <p><strong>E-Mail</strong> <input type="text" name="Mail" /></p>
+ <p><strong>Password</strong> <input type="password" name="Password" /></p>
+ <p><input type="submit" /></p>
+ </form>
+ {{end}}
+{{end}} \ No newline at end of file