Files
easywish/backend/internal/controllers/controller.go
Nikolai Papin f2753e1495 refactor: declaring controller methods externally because the big idiot swaggo does not want to work unless the comments are attached to a gin handler func;
fix: swagger docs work now;
chore: remove incomplete account and profile controllers;
fix: correct client info type in request middleware
2025-07-17 22:37:07 +03:00

113 lines
2.9 KiB
Go

// Copyright (c) 2025 Nikolai Papin
//
// This file is part of Easywish
//
// 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 controllers
import (
"easywish/internal/dto"
"easywish/internal/services"
"easywish/internal/utils/enums"
"easywish/internal/validation"
"net/http"
"github.com/gin-gonic/gin"
"github.com/go-playground/validator/v10"
"go.uber.org/zap"
)
var (
GET = "GET"
POST = "POST"
PUT = "PUT"
PATCH = "PATCH"
DELETE = "DELETE"
)
type ControllerMethod struct {
HttpMethod string
Path string
Authorization enums.Role
Middleware []gin.HandlerFunc
Function func (c *gin.Context)
}
type controllerImpl struct {
Path string
Middleware []gin.HandlerFunc
Methods []ControllerMethod
}
type Controller interface {
Setup(group *gin.RouterGroup, log *zap.Logger, auth services.AuthService)
}
func (ctrl *controllerImpl) Setup(group *gin.RouterGroup, log *zap.Logger, auth services.AuthService) {
ctrlGroup := group.Group(ctrl.Path)
ctrlGroup.Use(ctrl.Middleware...)
for _, method := range ctrl.Methods {
ctrlGroup.Handle(
method.HttpMethod,
method.Path,
append(
method.Middleware,
gin.HandlerFunc(func(c *gin.Context) {
clientInfo, _ := c.Get("client_info")
if clientInfo.(dto.ClientInfo).Role < method.Authorization {
c.AbortWithStatusJSON(
http.StatusForbidden,
gin.H{"error": "Insufficient authorization for this method"})
return
}
}),
method.Function)...,
)}
}
func GetRequest[ModelT any](c *gin.Context) (*dto.Request[ModelT], error) {
var body ModelT
if err := c.ShouldBindJSON(&body); err != nil {
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return nil, err
}
// TODO: Think hard on a singleton for better performance
validate := validation.NewValidator()
if err := validate.Struct(body); err != nil {
errorList := err.(validator.ValidationErrors)
c.AbortWithStatusJSON(
http.StatusBadRequest,
gin.H{"error": errorList})
return nil, err
}
cinfoFromCtx, ok := c.Get("client_info"); if !ok {
c.AbortWithStatusJSON(
http.StatusInternalServerError,
gin.H{"error": "Client info was not found"})
panic("No client_info found in gin context. Does the handler use AuthMiddleware?")
}
cinfo := cinfoFromCtx.(dto.ClientInfo)
return &dto.Request[ModelT]{
Body: body,
User: cinfo,
}, nil
}