github.com/cs3org/reva/v2@v2.27.7/internal/http/services/owncloud/ocdav/options.go (about)

     1  // Copyright 2018-2021 CERN
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // In applying this license, CERN does not waive the privileges and immunities
    16  // granted to it by virtue of its status as an Intergovernmental Organization
    17  // or submit itself to any jurisdiction.
    18  
    19  package ocdav
    20  
    21  import (
    22  	"net/http"
    23  	"strings"
    24  
    25  	"github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/net"
    26  )
    27  
    28  func (s *svc) handleOptions(w http.ResponseWriter, r *http.Request) {
    29  	allow := "OPTIONS, LOCK, GET, HEAD, POST, DELETE, PROPPATCH, COPY,"
    30  	allow += " MOVE, UNLOCK, PROPFIND, MKCOL, REPORT, SEARCH,"
    31  	allow += " PUT" // TODO(jfd): only for files ... but we cannot create the full path without a user ... which we only have when credentials are sent
    32  
    33  	isPublic := strings.Contains(r.Context().Value(net.CtxKeyBaseURI).(string), "public-files")
    34  
    35  	w.Header().Set(net.HeaderContentType, "application/xml")
    36  	w.Header().Set("Allow", allow)
    37  	w.Header().Set("DAV", "1, 2")
    38  	w.Header().Set("MS-Author-Via", "DAV")
    39  	if !isPublic {
    40  		w.Header().Add(net.HeaderAccessControlAllowHeaders, net.HeaderTusResumable)
    41  		w.Header().Add(net.HeaderAccessControlExposeHeaders, strings.Join([]string{net.HeaderTusResumable, net.HeaderTusVersion, net.HeaderTusExtension}, ","))
    42  		w.Header().Set(net.HeaderTusResumable, "1.0.0") // TODO(jfd): only for dirs?
    43  		w.Header().Set(net.HeaderTusVersion, "1.0.0")
    44  		w.Header().Set(net.HeaderTusExtension, "creation,creation-with-upload,checksum,expiration")
    45  		w.Header().Set(net.HeaderTusChecksumAlgorithm, "md5,sha1,crc32")
    46  	}
    47  	w.WriteHeader(http.StatusNoContent)
    48  }