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minio/cmd/routers.go

113 lines
3.3 KiB

/*
* Minio Cloud Storage, (C) 2015, 2016 Minio, 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 cmd
import (
"net/http"
router "github.com/gorilla/mux"
)
func newObjectLayerFn() ObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
return globalObjectAPI
}
// Composed function registering routers for only distributed XL setup.
func registerDistXLRouters(mux *router.Router, srvCmdConfig serverCmdConfig) error {
// Register storage rpc router only if its a distributed setup.
err := registerStorageRPCRouters(mux, srvCmdConfig)
if err != nil {
return err
}
// Register distributed namespace lock.
err = registerDistNSLockRouter(mux, srvCmdConfig)
if err != nil {
return err
}
// Register S3 peer communication router.
err = registerS3PeerRPCRouter(mux)
if err != nil {
return err
}
// Register RPC router for web related calls.
return registerBrowserPeerRPCRouter(mux)
}
// configureServer handler returns final handler for the http server.
func configureServerHandler(srvCmdConfig serverCmdConfig) (http.Handler, error) {
// Initialize router. `SkipClean(true)` stops gorilla/mux from
// normalizing URL path minio/minio#3256
mux := router.NewRouter().SkipClean(true)
// Initialize distributed NS lock.
if globalIsDistXL {
registerDistXLRouters(mux, srvCmdConfig)
}
// Add Admin RPC router
err := registerAdminRPCRouter(mux)
if err != nil {
return nil, err
}
// Register web router when its enabled.
if globalIsBrowserEnabled {
if err := registerWebRouter(mux); err != nil {
return nil, err
}
}
// Add Admin router.
registerAdminRouter(mux)
// Add API router.
registerAPIRouter(mux)
// List of some generic handlers which are applied for all incoming requests.
var handlerFns = []HandlerFunc{
// Limits all requests size to a maximum fixed limit
setRequestSizeLimitHandler,
// Adds 'crossdomain.xml' policy handler to serve legacy flash clients.
setCrossDomainPolicy,
// Redirect some pre-defined browser request paths to a static location prefix.
setBrowserRedirectHandler,
// Validates if incoming request is for restricted buckets.
setPrivateBucketHandler,
// Adds cache control for all browser requests.
setBrowserCacheControlHandler,
// Validates all incoming requests to have a valid date header.
setTimeValidityHandler,
// CORS setting for all browser API requests.
setCorsHandler,
// Validates all incoming URL resources, for invalid/unsupported
// resources client receives a HTTP error.
setIgnoreResourcesHandler,
// Auth handler verifies incoming authorization headers and
// routes them accordingly. Client receives a HTTP error for
// invalid/unsupported signatures.
setAuthHandler,
// Add new handlers here.
}
// Register rest of the handlers.
return registerHandlers(mux, handlerFns...), nil
}