Validate main PHP sessions against user IDs

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/handler/login/login.go

@@ -4,6 +4,7 @@ import (
 	"encoding/base64"
 	"errors"
 	"honoka-chan/internal/middleware"
+	loginmodel "honoka-chan/internal/model/login"
 	usermodel "honoka-chan/internal/model/user"
 	"honoka-chan/internal/router"
 	loginschema "honoka-chan/internal/schema/login"
@@ -74,6 +75,15 @@ func login(ctx *gin.Context) {
 		return
 	}
 
+	ss.SetAuthKey(&loginmodel.AuthKey{
+		AuthorizeToken: authorizeToken,
+		UserID:         userID,
+		InsertDate:     time.Now().Format("2006-01-02 15:04:05"),
+	})
+	if ss.Done() {
+		return
+	}
+
 	ss.Respond(loginschema.LoginResp{
 		ResponseData: loginschema.LoginData{
 			AuthorizeToken:  authorizeToken,

internal/middleware/common.go

@@ -25,7 +25,6 @@ func Common(ctx *gin.Context) {
 	ctx.Set("request_data", reqData)
 
 	uid := ctx.GetHeader("User-ID")
-	ctx.Set("userid", uid)
 
 	ss := session.Attach(ctx)
 	ctx.Set("session", ss)
@@ -35,13 +34,6 @@ func Common(ctx *gin.Context) {
 		return
 	}
 
-	if !honokautils.IsMainLoginEndpoint(ctx.Request.URL.Path) {
-		if ss.UserPref.ForceRelogin {
-			ss.AbortWithStatus(http.StatusNotFound, honokautils.NewNotFoundContent(ctx.Request.URL.Path))
-			return
-		}
-	}
-
 	authorize := ctx.GetHeader("Authorize")
 	params, err := url.ParseQuery(authorize)
 	if err != nil {
@@ -56,6 +48,34 @@ func Common(ctx *gin.Context) {
 	token := params.Get("token")
 	ctx.Set("token", token)
 
+	if !honokautils.IsMainLoginEndpoint(ctx.Request.URL.Path) {
+		userID, err := strconv.Atoi(uid)
+		if err != nil || userID <= 0 {
+			ss.AbortWithStatus(http.StatusNotFound, honokautils.NewNotFoundContent(ctx.Request.URL.Path))
+			return
+		}
+
+		valid, err := ss.IsAuthorizeTokenForUser(token, userID)
+		if ss.CheckErr(err) {
+			return
+		}
+		if !valid {
+			ss.AbortWithStatus(http.StatusNotFound, honokautils.NewNotFoundContent(ctx.Request.URL.Path))
+			return
+		}
+
+		ctx.Set("userid", uid)
+		ss.LoadUser(uid)
+		if ss.Done() {
+			return
+		}
+
+		if ss.UserPref.ForceRelogin {
+			ss.AbortWithStatus(http.StatusNotFound, honokautils.NewNotFoundContent(ctx.Request.URL.Path))
+			return
+		}
+	}
+
 	ctx.Header("user_id", uid)
 	ctx.Header("authorize", fmt.Sprintf("consumerKey=lovelive_test&timeStamp=%d&version=1.1&token=%s&nonce=%d&user_id=%s&requestTimeStamp=%d", time.Now().Unix(), token, nonce, uid, time.Now().Unix()))
 

internal/model/login/authkey.go

@@ -3,6 +3,7 @@ package loginmodel
 type AuthKey struct {
 	ID             int    `xorm:"id pk autoincr"`
 	AuthorizeToken string `xorm:"authorize_token"`
+	UserID         int    `xorm:"user_id index"`
 	ClientToken    string `xorm:"client_token"`
 	ServerToken    string `xorm:"server_token"`
 	InsertDate     string `xorm:"insert_date"`

internal/session/login.go

@@ -19,3 +19,13 @@ func (ss *Session) SetAuthKey(authKey *loginmodel.AuthKey) {
 		return
 	}
 }
+
+func (ss *Session) IsAuthorizeTokenForUser(token string, userID int) (bool, error) {
+	if token == "" || userID <= 0 {
+		return false, nil
+	}
+
+	return ss.UserEng.Table(new(loginmodel.AuthKey)).
+		Where("authorize_token = ? AND user_id = ?", token, userID).
+		Exist()
+}

internal/session/session.go

@@ -53,13 +53,16 @@ func New(ctx *gin.Context) *Session {
 	ss.UserEng = db.UserEng.NewSession()
 	ss.UserEng.Begin()
 
-	userID := ctx.GetString("userid")
-	if userID != "" {
+	return ss
+}
+
+func (ss *Session) LoadUser(userID string) {
 	ss.UserPref = ss.GetUserPref(userID)
 	ss.UserID = ss.UserPref.UserID
 }
 
-	return ss
+func (ss *Session) Done() bool {
+	return ss.done
 }
 
 func Get(ctx *gin.Context) *Session {