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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.RLock()
defer globalObjLayerMutex.RUnlock()
return globalHTTPServer
}
func setHTTPServer(h *xhttp.Server) {
globalObjLayerMutex.Lock()
globalHTTPServer = h
globalObjLayerMutex.Unlock()
}
func newObjectLayerFn() ObjectLayer {
globalObjLayerMutex.RLock()
defer globalObjLayerMutex.RUnlock()
return globalObjectAPI
}
func newCachedObjectLayerFn() CacheObjectLayer {
globalObjLayerMutex.RLock()
defer globalObjLayerMutex.RUnlock()
return globalCacheObjectAPI
}
func setCacheObjectLayer(c CacheObjectLayer) {
globalObjLayerMutex.Lock()
globalCacheObjectAPI = c
globalObjLayerMutex.Unlock()
}
func setObjectLayer(o ObjectLayer) {
globalObjLayerMutex.Lock()
globalObjectAPI = o
globalObjLayerMutex.Unlock()
}
// 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
}
func notImplementedHandler(w http.ResponseWriter, r *http.Request) {
writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
}
type rejectedAPI struct {
api string
methods []string
queries []string
path string
}
var rejectedAPIs = []rejectedAPI{
{
api: "inventory",
methods: []string{http.MethodGet, http.MethodPut, http.MethodDelete},
queries: []string{"inventory", ""},
},
{
api: "cors",
methods: []string{http.MethodPut, http.MethodDelete},
queries: []string{"cors", ""},
},
{
api: "metrics",
methods: []string{http.MethodGet, http.MethodPut, http.MethodDelete},
queries: []string{"metrics", ""},
},
{
api: "website",
methods: []string{http.MethodPut},
queries: []string{"website", ""},
},
{
api: "logging",
methods: []string{http.MethodPut, http.MethodDelete},
queries: []string{"logging", ""},
},
{
api: "accelerate",
methods: []string{http.MethodPut, http.MethodDelete},
queries: []string{"accelerate", ""},
},
{
api: "requestPayment",
methods: []string{http.MethodPut, http.MethodDelete},
queries: []string{"requestPayment", ""},
},
{
api: "torrent",
methods: []string{http.MethodPut, http.MethodDelete, http.MethodGet},
queries: []string{"torrent", ""},
path: "/{object:.+}",
},
{
api: "acl",
methods: []string{http.MethodDelete},
queries: []string{"acl", ""},
path: "/{object:.+}",
},
{
api: "acl",
methods: []string{http.MethodDelete, http.MethodPut, http.MethodHead},
queries: []string{"acl", ""},
},
{
api: "publicAccessBlock",
methods: []string{http.MethodDelete, http.MethodPut, http.MethodGet},
queries: []string{"publicAccessBlock", ""},
},
{
api: "ownershipControls",
methods: []string{http.MethodDelete, http.MethodPut, http.MethodGet},
queries: []string{"ownershipControls", ""},
},
{
api: "intelligent-tiering",
methods: []string{http.MethodDelete, http.MethodPut, http.MethodGet},
queries: []string{"intelligent-tiering", ""},
},
{
api: "analytics",
methods: []string{http.MethodDelete, http.MethodPut, http.MethodGet},
queries: []string{"analytics", ""},
},
}
func rejectUnsupportedAPIs(router *mux.Router) {
for _, r := range rejectedAPIs {
t := router.Methods(r.methods...).
HandlerFunc(collectAPIStats(r.api, httpTraceAll(notImplementedHandler))).
Queries(r.queries...)
if r.path != "" {
t.Path(r.path)
}
}
}
// 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 _, router := range routers {
rejectUnsupportedAPIs(router)
// Object operations
// HeadObject
router.Methods(http.MethodHead).Path("/{object:.+}").HandlerFunc(
collectAPIStats("headobject", maxClients(httpTraceAll(api.HeadObjectHandler))))
// CopyObjectPart
router.Methods(http.MethodPut).Path("/{object:.+}").
HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").
HandlerFunc(collectAPIStats("copyobjectpart", maxClients(httpTraceAll(api.CopyObjectPartHandler)))).
Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// PutObjectPart
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobjectpart", maxClients(httpTraceHdrs(api.PutObjectPartHandler)))).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}")
// ListObjectParts
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("listobjectparts", maxClients(httpTraceAll(api.ListObjectPartsHandler)))).Queries("uploadId", "{uploadId:.*}")
// CompleteMultipartUpload
router.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
collectAPIStats("completemutipartupload", maxClients(httpTraceAll(api.CompleteMultipartUploadHandler)))).Queries("uploadId", "{uploadId:.*}")
// NewMultipartUpload
router.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
collectAPIStats("newmultipartupload", maxClients(httpTraceAll(api.NewMultipartUploadHandler)))).Queries("uploads", "")
// AbortMultipartUpload
router.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
collectAPIStats("abortmultipartupload", maxClients(httpTraceAll(api.AbortMultipartUploadHandler)))).Queries("uploadId", "{uploadId:.*}")
// GetObjectACL - this is a dummy call.
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("getobjectacl", maxClients(httpTraceHdrs(api.GetObjectACLHandler)))).Queries("acl", "")
// PutObjectACL - this is a dummy call.
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobjectacl", maxClients(httpTraceHdrs(api.PutObjectACLHandler)))).Queries("acl", "")
// GetObjectTagging
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("getobjecttagging", maxClients(httpTraceHdrs(api.GetObjectTaggingHandler)))).Queries("tagging", "")
// PutObjectTagging
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobjecttagging", maxClients(httpTraceHdrs(api.PutObjectTaggingHandler)))).Queries("tagging", "")
// DeleteObjectTagging
router.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
collectAPIStats("deleteobjecttagging", maxClients(httpTraceHdrs(api.DeleteObjectTaggingHandler)))).Queries("tagging", "")
// SelectObjectContent
router.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
collectAPIStats("selectobjectcontent", maxClients(httpTraceHdrs(api.SelectObjectContentHandler)))).Queries("select", "").Queries("select-type", "2")
// GetObjectRetention
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("getobjectretention", maxClients(httpTraceAll(api.GetObjectRetentionHandler)))).Queries("retention", "")
// GetObjectLegalHold
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("getobjectlegalhold", maxClients(httpTraceAll(api.GetObjectLegalHoldHandler)))).Queries("legal-hold", "")
// GetObject
router.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
collectAPIStats("getobject", maxClients(httpTraceHdrs(api.GetObjectHandler))))
// CopyObject
router.Methods(http.MethodPut).Path("/{object:.+}").HeadersRegexp(xhttp.AmzCopySource, ".*?(\\/|%2F).*?").HandlerFunc(
collectAPIStats("copyobject", maxClients(httpTraceAll(api.CopyObjectHandler))))
// PutObjectRetention
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobjectretention", maxClients(httpTraceAll(api.PutObjectRetentionHandler)))).Queries("retention", "")
// PutObjectLegalHold
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobjectlegalhold", maxClients(httpTraceAll(api.PutObjectLegalHoldHandler)))).Queries("legal-hold", "")
// PutObject with auto-extract support for zip
router.Methods(http.MethodPut).Path("/{object:.+}").HeadersRegexp(xhttp.AmzSnowballExtract, "true").HandlerFunc(
collectAPIStats("putobject", maxClients(httpTraceHdrs(api.PutObjectExtractHandler))))
// PutObject
router.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
collectAPIStats("putobject", maxClients(httpTraceHdrs(api.PutObjectHandler))))
// DeleteObject
router.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
collectAPIStats("deleteobject", maxClients(httpTraceAll(api.DeleteObjectHandler))))
// PostRestoreObject
router.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
collectAPIStats("restoreobject", maxClients(httpTraceAll(api.PostRestoreObjectHandler)))).Queries("restore", "")
/// Bucket operations
// GetBucketLocation
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketlocation", maxClients(httpTraceAll(api.GetBucketLocationHandler)))).Queries("location", "")
// GetBucketPolicy
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketpolicy", maxClients(httpTraceAll(api.GetBucketPolicyHandler)))).Queries("policy", "")
// GetBucketLifecycle
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketlifecycle", maxClients(httpTraceAll(api.GetBucketLifecycleHandler)))).Queries("lifecycle", "")
// GetBucketEncryption
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketencryption", maxClients(httpTraceAll(api.GetBucketEncryptionHandler)))).Queries("encryption", "")
// GetBucketObjectLockConfig
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketobjectlockconfiguration", maxClients(httpTraceAll(api.GetBucketObjectLockConfigHandler)))).Queries("object-lock", "")
// GetBucketReplicationConfig
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketreplicationconfiguration", maxClients(httpTraceAll(api.GetBucketReplicationConfigHandler)))).Queries("replication", "")
// GetBucketVersioning
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketversioning", maxClients(httpTraceAll(api.GetBucketVersioningHandler)))).Queries("versioning", "")
// GetBucketNotification
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketnotification", maxClients(httpTraceAll(api.GetBucketNotificationHandler)))).Queries("notification", "")
// ListenNotification
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listennotification", maxClients(httpTraceAll(api.ListenNotificationHandler)))).Queries("events", "{events:.*}")
// Dummy Bucket Calls
// GetBucketACL -- this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketacl", maxClients(httpTraceAll(api.GetBucketACLHandler)))).Queries("acl", "")
// PutBucketACL -- this is a dummy call.
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketacl", maxClients(httpTraceAll(api.PutBucketACLHandler)))).Queries("acl", "")
// GetBucketCors - this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketcors", maxClients(httpTraceAll(api.GetBucketCorsHandler)))).Queries("cors", "")
// GetBucketWebsiteHandler - this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketwebsite", maxClients(httpTraceAll(api.GetBucketWebsiteHandler)))).Queries("website", "")
// GetBucketAccelerateHandler - this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketaccelerate", maxClients(httpTraceAll(api.GetBucketAccelerateHandler)))).Queries("accelerate", "")
// GetBucketRequestPaymentHandler - this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketrequestpayment", maxClients(httpTraceAll(api.GetBucketRequestPaymentHandler)))).Queries("requestPayment", "")
// GetBucketLoggingHandler - this is a dummy call.
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketlogging", maxClients(httpTraceAll(api.GetBucketLoggingHandler)))).Queries("logging", "")
// GetBucketTaggingHandler
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbuckettagging", maxClients(httpTraceAll(api.GetBucketTaggingHandler)))).Queries("tagging", "")
//DeleteBucketWebsiteHandler
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucketwebsite", maxClients(httpTraceAll(api.DeleteBucketWebsiteHandler)))).Queries("website", "")
// DeleteBucketTaggingHandler
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebuckettagging", maxClients(httpTraceAll(api.DeleteBucketTaggingHandler)))).Queries("tagging", "")
// ListMultipartUploads
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listmultipartuploads", maxClients(httpTraceAll(api.ListMultipartUploadsHandler)))).Queries("uploads", "")
// ListObjectsV2M
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listobjectsv2M", maxClients(httpTraceAll(api.ListObjectsV2MHandler)))).Queries("list-type", "2", "metadata", "true")
// ListObjectsV2
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listobjectsv2", maxClients(httpTraceAll(api.ListObjectsV2Handler)))).Queries("list-type", "2")
// ListObjectVersions
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listobjectversions", maxClients(httpTraceAll(api.ListObjectVersionsHandler)))).Queries("versions", "")
// GetBucketPolicyStatus
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getpolicystatus", maxClients(httpTraceAll(api.GetBucketPolicyStatusHandler)))).Queries("policyStatus", "")
// PutBucketLifecycle
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketlifecycle", maxClients(httpTraceAll(api.PutBucketLifecycleHandler)))).Queries("lifecycle", "")
// PutBucketReplicationConfig
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketreplicationconfiguration", maxClients(httpTraceAll(api.PutBucketReplicationConfigHandler)))).Queries("replication", "")
// PutBucketEncryption
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketencryption", maxClients(httpTraceAll(api.PutBucketEncryptionHandler)))).Queries("encryption", "")
// PutBucketPolicy
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketpolicy", maxClients(httpTraceAll(api.PutBucketPolicyHandler)))).Queries("policy", "")
// PutBucketObjectLockConfig
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketobjectlockconfig", maxClients(httpTraceAll(api.PutBucketObjectLockConfigHandler)))).Queries("object-lock", "")
// PutBucketTaggingHandler
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbuckettagging", maxClients(httpTraceAll(api.PutBucketTaggingHandler)))).Queries("tagging", "")
// PutBucketVersioning
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketversioning", maxClients(httpTraceAll(api.PutBucketVersioningHandler)))).Queries("versioning", "")
// PutBucketNotification
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucketnotification", maxClients(httpTraceAll(api.PutBucketNotificationHandler)))).Queries("notification", "")
// PutBucket
router.Methods(http.MethodPut).HandlerFunc(
collectAPIStats("putbucket", maxClients(httpTraceAll(api.PutBucketHandler))))
// HeadBucket
router.Methods(http.MethodHead).HandlerFunc(
collectAPIStats("headbucket", maxClients(httpTraceAll(api.HeadBucketHandler))))
// PostPolicy
router.Methods(http.MethodPost).HeadersRegexp(xhttp.ContentType, "multipart/form-data*").HandlerFunc(
collectAPIStats("postpolicybucket", maxClients(httpTraceHdrs(api.PostPolicyBucketHandler))))
// DeleteMultipleObjects
router.Methods(http.MethodPost).HandlerFunc(
collectAPIStats("deletemultipleobjects", maxClients(httpTraceAll(api.DeleteMultipleObjectsHandler)))).Queries("delete", "")
// DeleteBucketPolicy
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucketpolicy", maxClients(httpTraceAll(api.DeleteBucketPolicyHandler)))).Queries("policy", "")
// DeleteBucketReplication
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucketreplicationconfiguration", maxClients(httpTraceAll(api.DeleteBucketReplicationConfigHandler)))).Queries("replication", "")
// DeleteBucketLifecycle
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucketlifecycle", maxClients(httpTraceAll(api.DeleteBucketLifecycleHandler)))).Queries("lifecycle", "")
// DeleteBucketEncryption
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucketencryption", maxClients(httpTraceAll(api.DeleteBucketEncryptionHandler)))).Queries("encryption", "")
// DeleteBucket
router.Methods(http.MethodDelete).HandlerFunc(
collectAPIStats("deletebucket", maxClients(httpTraceAll(api.DeleteBucketHandler))))
// MinIO extension API for replication.
//
// GetBucketReplicationMetrics
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("getbucketreplicationmetrics", maxClients(httpTraceAll(api.GetBucketReplicationMetricsHandler)))).Queries("replication-metrics", "")
// S3 ListObjectsV1 (Legacy)
router.Methods(http.MethodGet).HandlerFunc(
collectAPIStats("listobjectsv1", maxClients(httpTraceAll(api.ListObjectsV1Handler))))
}
/// Root operation
// ListenNotification
apiRouter.Methods(http.MethodGet).Path(SlashSeparator).HandlerFunc(
collectAPIStats("listennotification", maxClients(httpTraceAll(api.ListenNotificationHandler)))).Queries("events", "{events:.*}")
// ListBuckets
apiRouter.Methods(http.MethodGet).Path(SlashSeparator).HandlerFunc(
collectAPIStats("listbuckets", maxClients(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(
collectAPIStats("listbuckets", maxClients(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(methodNotAllowedHandler("S3")))
}
// 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)
}