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/*
* 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 newObjectLayerWithoutSafeModeFn() ObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
return globalObjectAPI
}
func newObjectLayerFn() ObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
if globalSafeMode {
return nil
}
return globalObjectAPI
}
func newCachedObjectLayerFn() CacheObjectLayer {
globalObjLayerMutex.Lock()
defer globalObjLayerMutex.Unlock()
if globalSafeMode {
return nil
}
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("getb
8000
ucketlocation", 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)
}