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ModuleRestHandler.go

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/*

* Copyright (c) 2020-2024. Devtron Inc.

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

package module

import (

"encoding/json"

"errors"

"github.com/devtron-labs/devtron/pkg/module/bean"

"net/http"

"github.com/devtron-labs/devtron/api/restHandler/common"

"github.com/devtron-labs/devtron/pkg/auth/authorisation/casbin"

"github.com/devtron-labs/devtron/pkg/auth/user"

"github.com/devtron-labs/devtron/pkg/module"

"github.com/gorilla/mux"

"go.uber.org/zap"

"gopkg.in/go-playground/validator.v9"

)

type ModuleRestHandler interface {

GetModuleInfo(w http.ResponseWriter, r *http.Request)

GetModuleConfig(w http.ResponseWriter, r *http.Request)

HandleModuleAction(w http.ResponseWriter, r *http.Request)

EnableModule(w http.ResponseWriter, r *http.Request)

}

type ModuleRestHandlerImpl struct {

logger *zap.SugaredLogger

moduleService module.ModuleService

userService user.UserService

enforcer casbin.Enforcer

validator *validator.Validate

}

func NewModuleRestHandlerImpl(logger *zap.SugaredLogger,

moduleService module.ModuleService,

userService user.UserService,

enforcer casbin.Enforcer,

validator *validator.Validate,

) *ModuleRestHandlerImpl {

return &ModuleRestHandlerImpl{

logger: logger,

moduleService: moduleService,

userService: userService,

enforcer: enforcer,

validator: validator,

}

}

func (impl ModuleRestHandlerImpl) GetModuleConfig(w http.ResponseWriter, r *http.Request) {

userId, err := impl.userService.GetLoggedInUser(r)

if userId == 0 || err != nil {

common.HandleUnauthorized(w, r)

return

}

// check query param

params := mux.Vars(r)

moduleName := params["name"]

if len(moduleName) == 0 {

impl.logger.Error("module name is not supplied")

common.WriteJsonResp(w, errors.New("module name is not supplied"), nil, http.StatusBadRequest)

return

}

config, err := impl.moduleService.GetModuleConfig(moduleName)

if err != nil {

impl.logger.Errorw("service err, GetModuleConfig", "name", moduleName, "err", err)

common.WriteJsonResp(w, err, nil, http.StatusInternalServerError)

return

}

common.WriteJsonResp(w, err, config, http.StatusOK)

}

func (impl ModuleRestHandlerImpl) GetModuleInfo(w http.ResponseWriter, r *http.Request) {

// check if user is logged in or not

userId, err := impl.userService.GetLoggedInUser(r)

if userId == 0 || err != nil {

common.HandleUnauthorized(w, r)

return

}

// check query param

params := mux.Vars(r)

moduleName := params["name"]

if len(moduleName) == 0 {

res, err := impl.moduleService.GetAllModuleInfo()

if err != nil {

impl.logger.Errorw("service err, GetAllModuleInfo", "err", err)

return

}

common.WriteJsonResp(w, err, res, http.StatusOK)

return

}

// service call

res, err := impl.moduleService.GetModuleInfo(moduleName)

if err != nil {

impl.logger.Errorw("service err, GetModuleInfo", "err", err)

common.WriteJsonResp(w, err, nil, http.StatusInternalServerError)

return

}

common.WriteJsonResp(w, err, res, http.StatusOK)

}

func (impl ModuleRestHandlerImpl) HandleModuleAction(w http.ResponseWriter, r *http.Request) {

// check if user is logged in or not

userId, err := impl.userService.GetLoggedInUser(r)

if userId == 0 || err != nil {

common.HandleUnauthorized(w, r)

return

}

// check query param

params := mux.Vars(r)

moduleName := params["name"]

if len(moduleName) == 0 {

impl.logger.Error("module name is not supplied")

common.WriteJsonResp(w, errors.New("module name is not supplied"), nil, http.StatusBadRequest)

return

}

// decode request

decoder := json.NewDecoder(r.Body)

var moduleActionRequestDto *bean.ModuleActionRequestDto

err = decoder.Decode(&moduleActionRequestDto)

if err != nil {

impl.logger.Errorw("error in decoding request in HandleModuleAction", "err", err)

common.WriteJsonResp(w, err, nil, http.StatusBadRequest)

return

}

err = impl.validator.Struct(moduleActionRequestDto)

if err != nil {

impl.logger.Errorw("error in validating request in HandleModuleAction", "err", err)

common.WriteJsonResp(w, err, nil, http.StatusBadRequest)

return

}

// handle super-admin RBAC

token := r.Header.Get("token")

if ok := impl.enforcer.Enforce(token, casbin.ResourceGlobal, casbin.ActionUpdate, "*"); !ok {

common.WriteJsonResp(w, errors.New("unauthorized"), nil, http.StatusForbidden)

return

}

// service call

res, err := impl.moduleService.HandleModuleAction(userId, moduleName, moduleActionRequestDto)

if err != nil {

impl.logger.Errorw("service err, HandleModuleAction", "err", err)

common.WriteJsonResp(w, err, nil, http.StatusInternalServerError)

return

}

common.WriteJsonResp(w, err, res, http.StatusOK)

}

func (impl ModuleRestHandlerImpl) EnableModule(w http.ResponseWriter, r *http.Request) {

// check if user is logged in or not

userId, err := impl.userService.GetLoggedInUser(r)

if userId == 0 || err != nil {

common.HandleUnauthorized(w, r)

return

}

// check query param

params := mux.Vars(r)

moduleName := params["name"]

if len(moduleName) == 0 {

impl.logger.Error("module name is not supplied")

common.WriteJsonResp(w, errors.New("module name is not supplied"), nil, http.StatusBadRequest)

return

}

// decode request

decoder := json.NewDecoder(r.Body)

var moduleEnableRequestDto bean.ModuleEnableRequestDto

err = decoder.Decode(&moduleEnableRequestDto)

if err != nil {

impl.logger.Errorw("error in decoding request in ModuleEnableRequestDto", "err", err)

common.WriteJsonResp(w, err, nil, http.StatusBadRequest)

return

}

// handle super-admin RBAC

token := r.Header.Get("token")

if ok := impl.enforcer.Enforce(token, casbin.ResourceGlobal, casbin.ActionUpdate, "*"); !ok {

common.WriteJsonResp(w, errors.New("unauthorized"), nil, http.StatusForbidden)

return

}

// service call

res, err := impl.moduleService.EnableModule(moduleName, moduleEnableRequestDto.Version)

if err != nil {

impl.logger.Errorw("service err, Enabling Module", "err", err, "moduleName", moduleName, "toolVersion", moduleEnableRequestDto.Version)

common.WriteJsonResp(w, err, nil, http.StatusInternalServerError)

return

}

common.WriteJsonResp(w, err, res, http.StatusOK)

}