github.com/mendersoftware/go-lib-micro@v0.0.0-20240304135804-e8e39c59b148/rbac/middleware.go (about)

     1  // Copyright 2023 Northern.tech AS
     2  //
     3  //	Licensed under the Apache License, Version 2.0 (the "License");
     4  //	you may not use this file except in compliance with the License.
     5  //	You may obtain a copy of the License at
     6  //
     7  //	    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //	Unless required by applicable law or agreed to in writing, software
    10  //	distributed under the License is distributed on an "AS IS" BASIS,
    11  //	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //	See the License for the specific language governing permissions and
    13  //	limitations under the License.
    14  package rbac
    15  
    16  import (
    17  	"github.com/ant0ine/go-json-rest/rest"
    18  	"github.com/gin-gonic/gin"
    19  )
    20  
    21  func Middleware() gin.HandlerFunc {
    22  	return func(c *gin.Context) {
    23  		if scope := ExtractScopeFromHeader(c.Request); scope != nil {
    24  			ctx := c.Request.Context()
    25  			ctx = WithContext(ctx, scope)
    26  			c.Request = c.Request.WithContext(ctx)
    27  		}
    28  		return
    29  	}
    30  }
    31  
    32  type RBACMiddleware struct {
    33  }
    34  
    35  func (mw *RBACMiddleware) MiddlewareFunc(h rest.HandlerFunc) rest.HandlerFunc {
    36  	return func(w rest.ResponseWriter, r *rest.Request) {
    37  		if scope := ExtractScopeFromHeader(r.Request); scope != nil {
    38  			ctx := r.Context()
    39  			ctx = WithContext(ctx, scope)
    40  			r.Request = r.WithContext(ctx)
    41  		}
    42  
    43  		h(w, r)
    44  	}
    45  }