minio/cmd/api-router.go
Harshavardhana a0d0645128
remove safeMode behavior in startup (#10645)
In almost all scenarios MinIO now is
mostly ready for all sub-systems
independently, safe-mode is not useful
anymore and do not serve its original
intended purpose.

allow server to be fully functional
even with config partially configured,
this is to cater for availability of actual
I/O v/s manually fixing the server.

In k8s like environments it will never make
sense to take pod into safe-mode state,
because there is no real access to perform
any remote operation on them.
2020-10-09 09:59:52 -07:00

374 lines
18 KiB
Go

/*
* MinIO Cloud Storage, (C) 2016-2020 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"
"net/http"
"github.com/gorilla/mux"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/pkg/wildcard"
"github.com/rs/cors"
)
func newHTTPServerFn() *xhttp.Server {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
return globalHTTPServer
}
func newObjectLayerFn() ObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
return globalObjectAPI
}
func newCachedObjectLayerFn() CacheObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
return globalCacheObjectAPI
}
// objectAPIHandler implements and provides http handlers for S3 API.
type objectAPIHandlers struct {
ObjectAPI func() ObjectLayer
CacheAPI func() CacheObjectLayer
}
// getHost tries its best to return the request host.
// According to section 14.23 of RFC 2616 the Host header
// can include the port number if the default value of 80 is not used.
func getHost(r *http.Request) string {
if r.URL.IsAbs() {
return r.URL.Host
}
return r.Host
}
// registerAPIRouter - registers S3 compatible APIs.
func registerAPIRouter(router *mux.Router) {
// Initialize API.
api := objectAPIHandlers{
ObjectAPI: newObjectLayerFn,
CacheAPI: newCachedObjectLayerFn,
}
// API Router
apiRouter := router.PathPrefix(SlashSeparator).Subrouter()
var routers []*mux.Router
for _, domainName := range globalDomainNames {
if IsKubernetes() {
routers = append(routers, apiRouter.MatcherFunc(func(r *http.Request, match *mux.RouteMatch) bool {
host, _, err := net.SplitHostPort(getHost(r))
if err != nil {
host = r.Host
}
// Make sure to skip matching minio.<domain>` this is
// specifically meant for operator/k8s deployment
// The reason we need to skip this is for a special
// usecase where we need to make sure that
// minio.<namespace>.svc.<cluster_domain> is ignored
// by the bucketDNS style to ensure that path style
// is available and honored at this domain.
//
// All other `<bucket>.<namespace>.svc.<cluster_domain>`
// makes sure that buckets are routed through this matcher
// to match for `<bucket>`
return host != minioReservedBucket+"."+domainName
}).Host("{bucket:.+}."+domainName).Subrouter())
} else {
routers = append(routers, apiRouter.Host("{bucket:.+}."+domainName).Subrouter())
}
}
routers = append(routers, apiRouter.PathPrefix("/{bucket}").Subrouter())
for _, bucket := range routers {
// Object operations
// HeadObject
bucket.Methods(http.MethodHead).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("headobject", httpTraceAll(api.HeadObjectHandler))))
// CopyObjectPart
bucket.Methods(http.MethodPut).Path("/{object:.+}").
HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").
HandlerFunc(maxClients(collectAPIStats("copyobjectpart", httpTraceAll(api.CopyObjectPartHandler)))).
Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// PutObjectPart
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobjectpart", httpTraceHdrs(api.PutObjectPartHandler)))).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// ListObjectParts
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("listobjectparts", httpTraceAll(api.ListObjectPartsHandler)))).Queries("uploadId", "{uploadId:.*}")
// CompleteMultipartUpload
bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("completemutipartupload", httpTraceAll(api.CompleteMultipartUploadHandler)))).Queries("uploadId", "{uploadId:.*}")
// NewMultipartUpload
bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("newmultipartupload", httpTraceAll(api.NewMultipartUploadHandler)))).Queries("uploads", "")
// AbortMultipartUpload
bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("abortmultipartupload", httpTraceAll(api.AbortMultipartUploadHandler)))).Queries("uploadId", "{uploadId:.*}")
// GetObjectACL - this is a dummy call.
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("getobjectacl", httpTraceHdrs(api.GetObjectACLHandler)))).Queries("acl", "")
// PutObjectACL - this is a dummy call.
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobjectacl", httpTraceHdrs(api.PutObjectACLHandler)))).Queries("acl", "")
// GetObjectTagging
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("getobjecttagging", httpTraceHdrs(api.GetObjectTaggingHandler)))).Queries("tagging", "")
// PutObjectTagging
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobjecttagging", httpTraceHdrs(api.PutObjectTaggingHandler)))).Queries("tagging", "")
// DeleteObjectTagging
bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("deleteobjecttagging", httpTraceHdrs(api.DeleteObjectTaggingHandler)))).Queries("tagging", "")
// SelectObjectContent
bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("selectobjectcontent", httpTraceHdrs(api.SelectObjectContentHandler)))).Queries("select", "").Queries("select-type", "2")
// GetObjectRetention
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("getobjectretention", httpTraceAll(api.GetObjectRetentionHandler)))).Queries("retention", "")
// GetObjectLegalHold
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("getobjectlegalhold", httpTraceAll(api.GetObjectLegalHoldHandler)))).Queries("legal-hold", "")
// GetObject
bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("getobject", httpTraceHdrs(api.GetObjectHandler))))
// CopyObject
bucket.Methods(http.MethodPut).Path("/{object:.+}").HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").
HandlerFunc(maxClients(collectAPIStats("copyobject", httpTraceAll(api.CopyObjectHandler))))
// PutObjectRetention
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobjectretention", httpTraceAll(api.PutObjectRetentionHandler)))).Queries("retention", "")
// PutObjectLegalHold
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobjectlegalhold", httpTraceAll(api.PutObjectLegalHoldHandler)))).Queries("legal-hold", "")
// PutObject
bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("putobject", httpTraceHdrs(api.PutObjectHandler))))
// DeleteObject
bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
maxClients(collectAPIStats("deleteobject", httpTraceAll(api.DeleteObjectHandler))))
/// Bucket operations
// GetBucketLocation
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketlocation", httpTraceAll(api.GetBucketLocationHandler)))).Queries("location", "")
// GetBucketPolicy
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketpolicy", httpTraceAll(api.GetBucketPolicyHandler)))).Queries("policy", "")
// GetBucketLifecycle
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketlifecycle", httpTraceAll(api.GetBucketLifecycleHandler)))).Queries("lifecycle", "")
// GetBucketEncryption
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketencryption", httpTraceAll(api.GetBucketEncryptionHandler)))).Queries("encryption", "")
// GetBucketObjectLockConfig
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketobjectlockconfiguration", httpTraceAll(api.GetBucketObjectLockConfigHandler)))).Queries("object-lock", "")
// GetBucketReplicationConfig
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketreplicationconfiguration", httpTraceAll(api.GetBucketReplicationConfigHandler)))).Queries("replication", "")
// GetBucketVersioning
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketversioning", httpTraceAll(api.GetBucketVersioningHandler)))).Queries("versioning", "")
// GetBucketNotification
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketnotification", httpTraceAll(api.GetBucketNotificationHandler)))).Queries("notification", "")
// ListenNotification
bucket.Methods(http.MethodGet).HandlerFunc(collectAPIStats("listennotification", httpTraceAll(api.ListenNotificationHandler))).Queries("events", "{events:.*}")
// Dummy Bucket Calls
// GetBucketACL -- this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketacl", httpTraceAll(api.GetBucketACLHandler)))).Queries("acl", "")
// PutBucketACL -- this is a dummy call.
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketacl", httpTraceAll(api.PutBucketACLHandler)))).Queries("acl", "")
// GetBucketCors - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketcors", httpTraceAll(api.GetBucketCorsHandler)))).Queries("cors", "")
// GetBucketWebsiteHandler - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketwebsite", httpTraceAll(api.GetBucketWebsiteHandler)))).Queries("website", "")
// GetBucketAccelerateHandler - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketaccelerate", httpTraceAll(api.GetBucketAccelerateHandler)))).Queries("accelerate", "")
// GetBucketRequestPaymentHandler - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketrequestpayment", httpTraceAll(api.GetBucketRequestPaymentHandler)))).Queries("requestPayment", "")
// GetBucketLoggingHandler - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketlogging", httpTraceAll(api.GetBucketLoggingHandler)))).Queries("logging", "")
// GetBucketLifecycleHandler - this is a dummy call.
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbucketlifecycle", httpTraceAll(api.GetBucketLifecycleHandler)))).Queries("lifecycle", "")
// GetBucketTaggingHandler
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("getbuckettagging", httpTraceAll(api.GetBucketTaggingHandler)))).Queries("tagging", "")
//DeleteBucketWebsiteHandler
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucketwebsite", httpTraceAll(api.DeleteBucketWebsiteHandler)))).Queries("website", "")
// DeleteBucketTaggingHandler
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebuckettagging", httpTraceAll(api.DeleteBucketTaggingHandler)))).Queries("tagging", "")
// ListMultipartUploads
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("listmultipartuploads", httpTraceAll(api.ListMultipartUploadsHandler)))).Queries("uploads", "")
// ListObjectsV2M
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("listobjectsv2M", httpTraceAll(api.ListObjectsV2MHandler)))).Queries("list-type", "2", "metadata", "true")
// ListObjectsV2
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("listobjectsv2", httpTraceAll(api.ListObjectsV2Handler)))).Queries("list-type", "2")
// ListObjectVersions
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("listobjectversions", httpTraceAll(api.ListObjectVersionsHandler)))).Queries("versions", "")
// ListObjectsV1 (Legacy)
bucket.Methods(http.MethodGet).HandlerFunc(
maxClients(collectAPIStats("listobjectsv1", httpTraceAll(api.ListObjectsV1Handler))))
// PutBucketLifecycle
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketlifecycle", httpTraceAll(api.PutBucketLifecycleHandler)))).Queries("lifecycle", "")
// PutBucketReplicationConfig
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketreplicationconfiguration", httpTraceAll(api.PutBucketReplicationConfigHandler)))).Queries("replication", "")
// GetObjectRetention
// PutBucketEncryption
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketencryption", httpTraceAll(api.PutBucketEncryptionHandler)))).Queries("encryption", "")
// PutBucketPolicy
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketpolicy", httpTraceAll(api.PutBucketPolicyHandler)))).Queries("policy", "")
// PutBucketObjectLockConfig
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketobjectlockconfig", httpTraceAll(api.PutBucketObjectLockConfigHandler)))).Queries("object-lock", "")
// PutBucketTaggingHandler
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbuckettagging", httpTraceAll(api.PutBucketTaggingHandler)))).Queries("tagging", "")
// PutBucketVersioning
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketversioning", httpTraceAll(api.PutBucketVersioningHandler)))).Queries("versioning", "")
// PutBucketNotification
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucketnotification", httpTraceAll(api.PutBucketNotificationHandler)))).Queries("notification", "")
// PutBucket
bucket.Methods(http.MethodPut).HandlerFunc(
maxClients(collectAPIStats("putbucket", httpTraceAll(api.PutBucketHandler))))
// HeadBucket
bucket.Methods(http.MethodHead).HandlerFunc(
maxClients(collectAPIStats("headbucket", httpTraceAll(api.HeadBucketHandler))))
// PostPolicy
bucket.Methods(http.MethodPost).HeadersRegexp(xhttp.ContentType, "multipart/form-data*").HandlerFunc(
maxClients(collectAPIStats("postpolicybucket", httpTraceHdrs(api.PostPolicyBucketHandler))))
// DeleteMultipleObjects
bucket.Methods(http.MethodPost).HandlerFunc(
maxClients(collectAPIStats("deletemultipleobjects", httpTraceAll(api.DeleteMultipleObjectsHandler)))).Queries("delete", "")
// DeleteBucketPolicy
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucketpolicy", httpTraceAll(api.DeleteBucketPolicyHandler)))).Queries("policy", "")
// DeleteBucketReplication
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucketreplicationconfiguration", httpTraceAll(api.DeleteBucketReplicationConfigHandler)))).Queries("replication", "")
// DeleteBucketLifecycle
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucketlifecycle", httpTraceAll(api.DeleteBucketLifecycleHandler)))).Queries("lifecycle", "")
// DeleteBucketEncryption
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucketencryption", httpTraceAll(api.DeleteBucketEncryptionHandler)))).Queries("encryption", "")
// DeleteBucket
bucket.Methods(http.MethodDelete).HandlerFunc(
maxClients(collectAPIStats("deletebucket", httpTraceAll(api.DeleteBucketHandler))))
}
/// Root operation
// ListenNotification
apiRouter.Methods(http.MethodGet).Path(SlashSeparator).HandlerFunc(
collectAPIStats("listennotification", httpTraceAll(api.ListenNotificationHandler))).Queries("events", "{events:.*}")
// ListBuckets
apiRouter.Methods(http.MethodGet).Path(SlashSeparator).HandlerFunc(
maxClients(collectAPIStats("listbuckets", httpTraceAll(api.ListBucketsHandler))))
// S3 browser with signature v4 adds '//' for ListBuckets request, so rather
// than failing with UnknownAPIRequest we simply handle it for now.
apiRouter.Methods(http.MethodGet).Path(SlashSeparator + SlashSeparator).HandlerFunc(
maxClients(collectAPIStats("listbuckets", httpTraceAll(api.ListBucketsHandler))))
// If none of the routes match add default error handler routes
apiRouter.NotFoundHandler = collectAPIStats("notfound", httpTraceAll(errorResponseHandler))
apiRouter.MethodNotAllowedHandler = collectAPIStats("methodnotallowed", httpTraceAll(errorResponseHandler))
}
// corsHandler handler for CORS (Cross Origin Resource Sharing)
func corsHandler(handler http.Handler) http.Handler {
commonS3Headers := []string{
xhttp.Date,
xhttp.ETag,
xhttp.ServerInfo,
xhttp.Connection,
xhttp.AcceptRanges,
xhttp.ContentRange,
xhttp.ContentEncoding,
xhttp.ContentLength,
xhttp.ContentType,
xhttp.ContentDisposition,
xhttp.LastModified,
xhttp.ContentLanguage,
xhttp.CacheControl,
xhttp.RetryAfter,
xhttp.AmzBucketRegion,
xhttp.Expires,
"X-Amz*",
"x-amz*",
"*",
}
return cors.New(cors.Options{
AllowOriginFunc: func(origin string) bool {
for _, allowedOrigin := range globalAPIConfig.getCorsAllowOrigins() {
if wildcard.MatchSimple(allowedOrigin, origin) {
return true
}
}
return false
},
AllowedMethods: []string{
http.MethodGet,
http.MethodPut,
http.MethodHead,
http.MethodPost,
http.MethodDelete,
http.MethodOptions,
http.MethodPatch,
},
AllowedHeaders: commonS3Headers,
ExposedHeaders: commonS3Headers,
AllowCredentials: true,
}).Handler(handler)
}