minio/routers.go
Harshavardhana 5f80edf232 routers: Fix a crash while initializing network fs. (#1382)
Crash happens when 'minio server filename' a file name is
provided instead of a directory on command line argument.

```
panic: runtime error: slice bounds out of range

goroutine 1 [running]:
panic(0x5eb460, 0xc82000e0b0)
	/usr/local/opt/go/libexec/src/runtime/panic.go:464 +0x3e6
main.splitNetPath(0x7fff5fbff9bd, 0x7, 0x0, 0x0, 0x0, 0x0)
	/Users/harsha/mygo/src/github.com/minio/minio/network-fs.go:49 +0xb7
main.newNetworkFS(0x7fff5fbff9bd, 0x7, 0x0, 0x0, 0x0, 0x0)
	/Users/harsha/mygo/src/github.com/minio/minio/network-fs.go:90 +0x20a
main.configureServerHandler(0xc82024e1c8, 0x5, 0xc8200640e0, 0x1, 0x1, 0x0, 0x0)
	/Users/harsha/mygo/src/github.com/minio/minio/routers.go:43 +0x6ce
main.configureServer(0xc82024e1c8, 0x5, 0xc8200640e0, 0x1, 0x1, 0x5)
	/Users/harsha/mygo/src/github.com/minio/minio/server-main.go:86 +0x67
```
2016-04-25 18:10:40 -07:00

100 lines
3 KiB
Go

/*
* 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 main
import (
"net/http"
"path/filepath"
"strings"
router "github.com/gorilla/mux"
"github.com/minio/minio/pkg/probe"
)
// newStorageAPI - initialize any storage API depending on the export path style.
func newStorageAPI(exportPaths ...string) (StorageAPI, error) {
if len(exportPaths) == 1 {
exportPath := exportPaths[0]
if !strings.ContainsRune(exportPath, ':') || filepath.VolumeName(exportPath) != "" {
// Initialize filesystem storage API.
return newFS(exportPath)
}
// Initialize network storage API.
return newNetworkFS(exportPath)
}
// Initialize XL storage API.
return newXL(exportPaths...)
}
// configureServer handler returns final handler for the http server.
func configureServerHandler(srvCmdConfig serverCmdConfig) http.Handler {
storageAPI, e := newStorageAPI(srvCmdConfig.exportPaths...)
fatalIf(probe.NewError(e), "Initializing storage API failed.", nil)
// Initialize object layer.
objAPI := newObjectLayer(storageAPI)
// Initialize storage rpc.
storageRPC := newStorageRPC(storageAPI)
// Initialize API.
apiHandlers := objectAPIHandlers{
ObjectAPI: objAPI,
}
// Initialize Web.
webHandlers := &webAPIHandlers{
ObjectAPI: objAPI,
}
// Initialize router.
mux := router.NewRouter()
// Register all routers.
registerStorageRPCRouter(mux, storageRPC)
registerWebRouter(mux, webHandlers)
registerAPIRouter(mux, apiHandlers)
// Add new routers here.
// List of some generic handlers which are applied for all
// incoming requests.
var handlerFns = []HandlerFunc{
// 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...)
}