github.com/hustcat/docker@v1.3.3-0.20160314103604-901c67a8eeab/api/server/middleware.go (about)

     1  package server
     2  
     3  import (
     4  	"github.com/Sirupsen/logrus"
     5  	"github.com/docker/docker/api"
     6  	"github.com/docker/docker/api/server/httputils"
     7  	"github.com/docker/docker/api/server/middleware"
     8  	"github.com/docker/docker/dockerversion"
     9  	"github.com/docker/docker/pkg/authorization"
    10  )
    11  
    12  // handleWithGlobalMiddlwares wraps the handler function for a request with
    13  // the server's global middlewares. The order of the middlewares is backwards,
    14  // meaning that the first in the list will be evaluated last.
    15  func (s *Server) handleWithGlobalMiddlewares(handler httputils.APIFunc) httputils.APIFunc {
    16  	next := handler
    17  
    18  	handleVersion := middleware.NewVersionMiddleware(dockerversion.Version, api.DefaultVersion, api.MinVersion)
    19  	next = handleVersion(next)
    20  
    21  	if s.cfg.EnableCors {
    22  		handleCORS := middleware.NewCORSMiddleware(s.cfg.CorsHeaders)
    23  		next = handleCORS(next)
    24  	}
    25  
    26  	handleUserAgent := middleware.NewUserAgentMiddleware(s.cfg.Version)
    27  	next = handleUserAgent(next)
    28  
    29  	// Only want this on debug level
    30  	if s.cfg.Logging && logrus.GetLevel() == logrus.DebugLevel {
    31  		next = middleware.DebugRequestMiddleware(next)
    32  	}
    33  
    34  	if len(s.cfg.AuthorizationPluginNames) > 0 {
    35  		s.authZPlugins = authorization.NewPlugins(s.cfg.AuthorizationPluginNames)
    36  		handleAuthorization := middleware.NewAuthorizationMiddleware(s.authZPlugins)
    37  		next = handleAuthorization(next)
    38  	}
    39  
    40  	return next
    41  }