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Diffstat (limited to 'user')
-rw-r--r--user/db_actions.go45
-rw-r--r--user/router.go96
-rw-r--r--user/user.go52
-rw-r--r--user/validate.go153
4 files changed, 346 insertions, 0 deletions
diff --git a/user/db_actions.go b/user/db_actions.go
new file mode 100644
index 0000000..611507d
--- /dev/null
+++ b/user/db_actions.go
@@ -0,0 +1,45 @@
+/* OpenBills-server - Server for libre billing software OpenBills-web
+ * Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package user
+
+import (
+ "context"
+ "fmt"
+ "go.mongodb.org/mongo-driver/bson"
+ "go.mongodb.org/mongo-driver/bson/primitive"
+)
+
+// Add user to db
+func saveUser(u User) (primitive.ObjectID, error) {
+ u.hashPassword()
+ res, err := db.InsertOne(context.TODO(), u)
+ return res.InsertedID.(primitive.ObjectID), err
+}
+
+// Delete user from DB
+func deleteUser(id primitive.ObjectID) error {
+ _, err := db.DeleteOne(context.TODO(), bson.M{"_id": id})
+ return err
+}
+
+// modify user in DB
+func modifyUser(id primitive.ObjectID, nu User) error {
+ fmt.Println(nu.Password)
+ _, err := db.UpdateOne(context.TODO(), bson.D{{"_id", id}}, bson.D{{"$set", nu}})
+ return err
+}
diff --git a/user/router.go b/user/router.go
new file mode 100644
index 0000000..ab1dff8
--- /dev/null
+++ b/user/router.go
@@ -0,0 +1,96 @@
+/* OpenBills-server - Server for libre billing software OpenBills-web
+ * Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package user
+
+import (
+ "github.com/gin-gonic/gin"
+ "go.mongodb.org/mongo-driver/bson/primitive"
+ "golang.org/x/crypto/bcrypt"
+ "log"
+ "net/http"
+)
+
+
+func Routes(route *gin.Engine) {
+ u := route.Group("/user")
+ {
+ u.POST("/new", validateMiddleware(), func(ctx *gin.Context) {
+ u := ctx.MustGet("user").(User)
+ // hash password
+ pass := []byte(u.Password)
+ hash, err := bcrypt.GenerateFromPassword(pass, bcrypt.DefaultCost)
+ if err != nil {
+ ctx.JSON(http.StatusInternalServerError, gin.H{"error": "could not login"})
+ log.Printf("ERROR: Failed to hash password: %v\n", err.Error())
+ }
+ u.Password = string(hash)
+
+ _, err = saveUser(u)
+ if err != nil {
+ ctx.JSON(http.StatusInternalServerError, gin.H{"error": "could not login"})
+ log.Printf("ERROR: Failed to add new user %v to DB: %v\n", u, err.Error())
+ return
+ }
+
+ log.Printf("Successfully saved new user to DB: %s", u.UserName)
+ ctx.JSON(http.StatusOK, nil)
+ })
+
+ u.PUT("/:userId", func(ctx *gin.Context) {
+ id := ctx.Param("userId")
+ objectId, err := primitive.ObjectIDFromHex(id)
+ if err != nil {
+ ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+ log.Printf("ERROR: Failed to modify user, Error parsing ID: %v\n", err.Error())
+ return
+ }
+
+ var u User
+ ctx.BindJSON(&u)
+ err = modifyUser(objectId, u)
+ if err != nil {
+ ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+ log.Printf("ERROR: Failed to modify user %v: %v\n", objectId, err.Error())
+ return
+ }
+
+ log.Printf("Modified user %v to %v.\n", objectId, u)
+ ctx.JSON(http.StatusOK, nil)
+ })
+
+ u.DELETE("/:userId", func(ctx *gin.Context) {
+ id := ctx.Param("userId")
+ objectId, err := primitive.ObjectIDFromHex(id)
+ if err != nil {
+ ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+ log.Printf("ERROR: Failed to delete user, Error parsing ID: %v\n", err.Error())
+ return
+ }
+
+ err = deleteUser(objectId)
+ if err != nil {
+ ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+ log.Printf("ERROR: Failed to delete user %v: %v\n", objectId, err.Error())
+ return
+ }
+
+ log.Printf("Deleted user %v from database.\n", objectId )
+ ctx.JSON(http.StatusOK, nil)
+ })
+ }
+}
diff --git a/user/user.go b/user/user.go
new file mode 100644
index 0000000..c6c3d53
--- /dev/null
+++ b/user/user.go
@@ -0,0 +1,52 @@
+/* OpenBills-server - Server for libre billing software OpenBills-web
+ * Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package user
+
+import (
+ "go.mongodb.org/mongo-driver/bson/primitive"
+ "go.mongodb.org/mongo-driver/mongo"
+ "github.com/MikunoNaka/OpenBills-server/database"
+ "golang.org/x/crypto/bcrypt"
+)
+
+var db *mongo.Collection = database.DB.Collection("Users")
+
+// per-user config can be shared to DB
+type Config struct {
+}
+
+type User struct {
+ Id primitive.ObjectID `bson:"_id,omitempty" json:"Id"`
+ UserName string `bson:"UserName" json:"UserName"`
+ Email string `bson:"Email" json:"Email"`
+ Password string `bson:"Password" json:"Password"`
+ Config Config `bson:"Config" json:"Config"`
+ // some actions are only available when email is verified
+ Verified bool `bson:"Verified" json:"Verified"`
+}
+
+func (u *User) hashPassword() error {
+ // TODO: password validation
+ hash, err := bcrypt.GenerateFromPassword([]byte(u.Password), bcrypt.DefaultCost)
+ if err != nil {
+ return err
+ }
+
+ u.Password = string(hash)
+ return nil
+}
diff --git a/user/validate.go b/user/validate.go
new file mode 100644
index 0000000..b51757f
--- /dev/null
+++ b/user/validate.go
@@ -0,0 +1,153 @@
+/* OpenBills-server - Server for libre billing software OpenBills-web
+ * Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package user
+
+import (
+ "context"
+ "strings"
+ "net/mail"
+ "net/http"
+ "log"
+ "github.com/gin-gonic/gin"
+ "go.mongodb.org/mongo-driver/mongo"
+ "go.mongodb.org/mongo-driver/bson"
+ "errors"
+)
+
+var (
+ errUsernameTaken = errors.New("username is taken")
+ errUsernameTooShort = errors.New("username is too short")
+ errUsernameInvalid = errors.New("invalid username")
+ errEmailTaken = errors.New("email is taken")
+ errEmailInvalid = errors.New("email is invalid")
+ errPasswordTooShort = errors.New("password is too short")
+)
+
+func isUsernameTaken(username string) error {
+ var x User
+ err := db.FindOne(context.TODO(), bson.M{"UserName": username}).Decode(&x)
+ if err != nil {
+ if err == mongo.ErrNoDocuments {
+ return nil
+ } else {
+ return err
+ }
+ } else {
+ return errUsernameTaken
+ }
+ return nil
+}
+
+func isEmailTaken(email string) error {
+ var x User
+ err := db.FindOne(context.TODO(), bson.M{"Email": email}).Decode(&x)
+ if err != nil {
+ if err == mongo.ErrNoDocuments {
+ return nil
+ } else {
+ return err
+ }
+ } else {
+ return errEmailTaken
+ }
+ return nil
+}
+
+func validateUsername(username string) error {
+ username = strings.Trim(username, " ")
+
+ if len(username) < 2 {
+ return errUsernameTooShort
+ }
+
+ if strings.Contains(username, " ") {
+ return errUsernameInvalid
+ }
+
+ return isUsernameTaken(username)
+}
+
+func validateEmail(email string) error {
+ email = strings.Trim(email, " ")
+
+ // verify if string is valid email
+ _, err := mail.ParseAddress(email)
+ if err != nil {
+ return errEmailInvalid
+ }
+
+ return isEmailTaken(email)
+}
+
+func validatePassword(password string) error {
+ // TODO: load password length from config
+ if len(password) < 12 {
+ return errPasswordTooShort
+ }
+
+ return nil
+}
+
+func validateMiddleware() gin.HandlerFunc {
+ return func(ctx *gin.Context) {
+ var u User
+ ctx.BindJSON(&u)
+
+ // validate username
+ isUsernameValid := validateUsername(u.UserName)
+ switch isUsernameValid {
+ case nil:
+ break;
+ case errUsernameTooShort, errUsernameInvalid:
+ ctx.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": isUsernameValid.Error()})
+ case errUsernameTaken:
+ ctx.AbortWithStatusJSON(http.StatusConflict, gin.H{"error": isUsernameValid.Error()})
+ default:
+ log.Printf("Error while creating new user '%s': %s", u.UserName, isUsernameValid.Error())
+ ctx.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "internal server error (cannot create user)"})
+ }
+
+ // validate email
+ isEmailValid := validateEmail(u.Email)
+ switch isEmailValid {
+ case nil:
+ break;
+ case errEmailInvalid:
+ ctx.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": isEmailValid.Error()})
+ case errEmailTaken:
+ ctx.AbortWithStatusJSON(http.StatusConflict, gin.H{"error": isEmailValid.Error()})
+ default:
+ log.Printf("Error while creating new user '%s': %s", u.UserName, isEmailValid.Error())
+ ctx.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "internal server error (cannot create user)"})
+ }
+
+ // validate password
+ isPasswordValid := validatePassword(u.Password)
+ switch isPasswordValid {
+ case nil:
+ break;
+ case errPasswordTooShort:
+ ctx.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": isPasswordValid.Error()})
+ default:
+ ctx.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "internal server error (cannot create user)"})
+ log.Printf("Error while creating new user '%s': %s", u.UserName, isPasswordValid.Error())
+ }
+
+ ctx.Set("user", u)
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 05:26:26 +0000