-
Notifications
You must be signed in to change notification settings - Fork 112
/
tus.go
398 lines (349 loc) · 13 KB
/
tus.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
// Copyright 2018-2021 CERN
//
// 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.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package ocdav
import (
"context"
"encoding/json"
"io"
"net/http"
"path"
"path/filepath"
"strconv"
"strings"
"time"
rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
link "github.com/cs3org/go-cs3apis/cs3/sharing/link/v1beta1"
provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
typespb "github.com/cs3org/go-cs3apis/cs3/types/v1beta1"
"github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/errors"
"github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/net"
"github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/spacelookup"
"github.com/cs3org/reva/v2/pkg/appctx"
"github.com/cs3org/reva/v2/pkg/conversions"
"github.com/cs3org/reva/v2/pkg/rhttp"
"github.com/cs3org/reva/v2/pkg/storagespace"
"github.com/cs3org/reva/v2/pkg/utils"
"github.com/rs/zerolog"
tusd "github.com/tus/tusd/pkg/handler"
"go.opentelemetry.io/otel/propagation"
)
// Propagator ensures the importer module uses the same trace propagation strategy.
var Propagator = propagation.NewCompositeTextMapPropagator(
propagation.Baggage{},
propagation.TraceContext{},
)
func (s *svc) handlePathTusPost(w http.ResponseWriter, r *http.Request, ns string) {
ctx, span := appctx.GetTracerProvider(r.Context()).Tracer(tracerName).Start(r.Context(), "tus-post")
defer span.End()
// read filename from metadata
meta := tusd.ParseMetadataHeader(r.Header.Get(net.HeaderUploadMetadata))
if err := ValidateName(path.Base(meta["filename"]), s.nameValidators); err != nil {
w.WriteHeader(http.StatusPreconditionFailed)
return
}
// append filename to current dir
fn := path.Join(ns, r.URL.Path, meta["filename"])
sublog := appctx.GetLogger(ctx).With().Str("path", fn).Logger()
// check tus headers?
ref := &provider.Reference{
// FIXME ResourceId?
Path: fn,
}
s.handleTusPost(ctx, w, r, meta, ref, sublog)
}
func (s *svc) handleSpacesTusPost(w http.ResponseWriter, r *http.Request, spaceID string) {
ctx, span := appctx.GetTracerProvider(r.Context()).Tracer(tracerName).Start(r.Context(), "spaces-tus-post")
defer span.End()
// read filename from metadata
meta := tusd.ParseMetadataHeader(r.Header.Get(net.HeaderUploadMetadata))
if err := ValidateName(path.Base(meta["filename"]), s.nameValidators); err != nil {
w.WriteHeader(http.StatusPreconditionFailed)
return
}
sublog := appctx.GetLogger(ctx).With().Str("spaceid", spaceID).Str("path", r.URL.Path).Logger()
ref, err := spacelookup.MakeStorageSpaceReference(spaceID, path.Join(r.URL.Path, meta["filename"]))
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
s.handleTusPost(ctx, w, r, meta, &ref, sublog)
}
func (s *svc) handleTusPost(ctx context.Context, w http.ResponseWriter, r *http.Request, meta map[string]string, ref *provider.Reference, log zerolog.Logger) {
w.Header().Add(net.HeaderAccessControlAllowHeaders, strings.Join([]string{net.HeaderTusResumable, net.HeaderUploadLength, net.HeaderUploadMetadata, net.HeaderIfMatch}, ", "))
w.Header().Add(net.HeaderAccessControlExposeHeaders, strings.Join([]string{net.HeaderTusResumable, net.HeaderUploadOffset, net.HeaderLocation}, ", "))
w.Header().Set(net.HeaderTusExtension, "creation,creation-with-upload,checksum,expiration")
w.Header().Set(net.HeaderTusResumable, "1.0.0")
// Test if the version sent by the client is supported
// GET methods are not checked since a browser may visit this URL and does
// not include this header. This request is not part of the specification.
if r.Header.Get(net.HeaderTusResumable) != "1.0.0" {
w.WriteHeader(http.StatusPreconditionFailed)
return
}
if r.Header.Get(net.HeaderUploadLength) == "" {
w.WriteHeader(http.StatusPreconditionFailed)
return
}
// Test if the target is a secret filedrop
var isSecretFileDrop bool
tokenStatInfo, ok := TokenStatInfoFromContext(ctx)
// We assume that when the uploader can create containers, but is not allowed to list them, it is a secret file drop
if ok && tokenStatInfo.GetPermissionSet().CreateContainer && !tokenStatInfo.GetPermissionSet().ListContainer {
isSecretFileDrop = true
}
// r.Header.Get(net.HeaderOCChecksum)
// TODO must be SHA1, ADLER32 or MD5 ... in capital letters????
// curl -X PUT https://demo.owncloud.com/remote.php/webdav/testcs.bin -u demo:demo -d '123' -v -H 'OC-Checksum: SHA1:40bd001563085fc35165329ea1ff5c5ecbdbbeef'
// TODO check Expect: 100-continue
client, err := s.gatewaySelector.Next()
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
sReq := &provider.StatRequest{
Ref: ref,
}
sRes, err := client.Stat(ctx, sReq)
if err != nil {
log.Error().Err(err).Msg("error sending grpc stat request")
w.WriteHeader(http.StatusInternalServerError)
return
}
if sRes.Status.Code != rpc.Code_CODE_OK && sRes.Status.Code != rpc.Code_CODE_NOT_FOUND {
errors.HandleErrorStatus(&log, w, sRes.Status)
return
}
info := sRes.Info
if info != nil && info.Type != provider.ResourceType_RESOURCE_TYPE_FILE {
log.Warn().Msg("resource is not a file")
w.WriteHeader(http.StatusConflict)
return
}
if info != nil {
clientETag := r.Header.Get(net.HeaderIfMatch)
serverETag := info.Etag
if clientETag != "" {
if clientETag != serverETag {
log.Warn().Str("client-etag", clientETag).Str("server-etag", serverETag).Msg("etags mismatch")
w.WriteHeader(http.StatusPreconditionFailed)
return
}
}
if isSecretFileDrop {
// find next filename
newName, status, err := FindName(ctx, client, filepath.Base(ref.Path), sRes.GetInfo().GetParentId())
if err != nil {
log.Error().Err(err).Msg("error sending grpc stat request")
w.WriteHeader(http.StatusInternalServerError)
return
}
if status.GetCode() != rpc.Code_CODE_OK {
log.Error().Interface("status", status).Msg("error listing file")
errors.HandleErrorStatus(&log, w, status)
return
}
ref.Path = filepath.Join(filepath.Dir(ref.GetPath()), newName)
sRes.GetInfo().Name = newName
}
}
uploadLength, err := strconv.ParseInt(r.Header.Get(net.HeaderUploadLength), 10, 64)
if err != nil {
log.Debug().Err(err).Msg("wrong request")
w.WriteHeader(http.StatusBadRequest)
return
}
if uploadLength == 0 {
tfRes, err := client.TouchFile(ctx, &provider.TouchFileRequest{
Ref: ref,
})
if err != nil {
log.Error().Err(err).Msg("error sending grpc stat request")
w.WriteHeader(http.StatusInternalServerError)
return
}
switch tfRes.Status.Code {
case rpc.Code_CODE_OK:
w.WriteHeader(http.StatusCreated)
return
case rpc.Code_CODE_ALREADY_EXISTS:
// Fall through to the tus case
default:
log.Error().Interface("status", tfRes.Status).Msg("error touching file")
w.WriteHeader(http.StatusInternalServerError)
return
}
}
opaqueMap := map[string]*typespb.OpaqueEntry{
net.HeaderUploadLength: {
Decoder: "plain",
Value: []byte(r.Header.Get(net.HeaderUploadLength)),
},
}
mtime := meta["mtime"]
if mtime != "" {
opaqueMap[net.HeaderOCMtime] = &typespb.OpaqueEntry{
Decoder: "plain",
Value: []byte(mtime),
}
}
// initiateUpload
uReq := &provider.InitiateFileUploadRequest{
Ref: ref,
Opaque: &typespb.Opaque{
Map: opaqueMap,
},
}
uRes, err := client.InitiateFileUpload(ctx, uReq)
if err != nil {
log.Error().Err(err).Msg("error initiating file upload")
w.WriteHeader(http.StatusInternalServerError)
return
}
if uRes.Status.Code != rpc.Code_CODE_OK {
if r.ProtoMajor == 1 {
// drain body to avoid `connection closed` errors
_, _ = io.Copy(io.Discard, r.Body)
}
if uRes.Status.Code == rpc.Code_CODE_NOT_FOUND {
w.WriteHeader(http.StatusPreconditionFailed)
return
}
errors.HandleErrorStatus(&log, w, uRes.Status)
return
}
var ep, token string
for _, p := range uRes.Protocols {
if p.Protocol == "tus" {
ep, token = p.UploadEndpoint, p.Token
}
}
// TUS clients don't understand the reva transfer token. We need to append it to the upload endpoint.
// The DataGateway has to take care of pulling it back into the request header upon request arrival.
if token != "" {
if !strings.HasSuffix(ep, "/") {
ep += "/"
}
ep += token
}
w.Header().Set(net.HeaderLocation, ep)
// for creation-with-upload extension forward bytes to dataprovider
// TODO check this really streams
if r.Header.Get(net.HeaderContentType) == "application/offset+octet-stream" {
finishUpload := true
if uploadLength > 0 {
var httpRes *http.Response
httpReq, err := rhttp.NewRequest(ctx, http.MethodPatch, ep, r.Body)
if err != nil {
log.Debug().Err(err).Msg("wrong request")
w.WriteHeader(http.StatusInternalServerError)
return
}
Propagator.Inject(ctx, propagation.HeaderCarrier(httpReq.Header))
httpReq.Header.Set(net.HeaderContentType, r.Header.Get(net.HeaderContentType))
httpReq.Header.Set(net.HeaderContentLength, r.Header.Get(net.HeaderContentLength))
if r.Header.Get(net.HeaderUploadOffset) != "" {
httpReq.Header.Set(net.HeaderUploadOffset, r.Header.Get(net.HeaderUploadOffset))
} else {
httpReq.Header.Set(net.HeaderUploadOffset, "0")
}
httpReq.Header.Set(net.HeaderTusResumable, r.Header.Get(net.HeaderTusResumable))
httpRes, err = s.client.Do(httpReq)
if err != nil || httpRes == nil {
log.Error().Err(err).Msg("error doing PATCH request to data gateway")
w.WriteHeader(http.StatusInternalServerError)
return
}
defer httpRes.Body.Close()
if httpRes.StatusCode != http.StatusNoContent {
w.WriteHeader(httpRes.StatusCode)
return
}
w.Header().Set(net.HeaderUploadOffset, httpRes.Header.Get(net.HeaderUploadOffset))
w.Header().Set(net.HeaderTusResumable, httpRes.Header.Get(net.HeaderTusResumable))
w.Header().Set(net.HeaderTusUploadExpires, httpRes.Header.Get(net.HeaderTusUploadExpires))
if httpRes.Header.Get(net.HeaderOCMtime) != "" {
w.Header().Set(net.HeaderOCMtime, httpRes.Header.Get(net.HeaderOCMtime))
}
if strings.HasPrefix(uReq.GetRef().GetPath(), "/public") && uReq.GetRef().GetResourceId() == nil {
// Use the path based request for the public link
sReq.Ref.Path = uReq.Ref.GetPath()
sReq.Ref.ResourceId = nil
} else {
if resid, err := storagespace.ParseID(httpRes.Header.Get(net.HeaderOCFileID)); err == nil {
sReq.Ref = &provider.Reference{
ResourceId: &resid,
}
}
}
finishUpload = httpRes.Header.Get(net.HeaderUploadOffset) == r.Header.Get(net.HeaderUploadLength)
}
// check if upload was fully completed
if uploadLength == 0 || finishUpload {
// get uploaded file metadata
sRes, err := client.Stat(ctx, sReq)
if err != nil {
log.Error().Err(err).Msg("error sending grpc stat request")
w.WriteHeader(http.StatusInternalServerError)
return
}
if sRes.Status.Code != rpc.Code_CODE_OK && sRes.Status.Code != rpc.Code_CODE_NOT_FOUND {
if sRes.Status.Code == rpc.Code_CODE_PERMISSION_DENIED {
// the token expired during upload, so the stat failed
// and we can't do anything about it.
// the clients will handle this gracefully by doing a propfind on the file
w.WriteHeader(http.StatusOK)
return
}
errors.HandleErrorStatus(&log, w, sRes.Status)
return
}
info := sRes.Info
if info == nil {
log.Error().Msg("No info found for uploaded file")
w.WriteHeader(http.StatusInternalServerError)
return
}
// get WebDav permissions for file
isPublic := false
if info.Opaque != nil && info.Opaque.Map != nil {
if info.Opaque.Map["link-share"] != nil && info.Opaque.Map["link-share"].Decoder == "json" {
ls := &link.PublicShare{}
_ = json.Unmarshal(info.Opaque.Map["link-share"].Value, ls)
isPublic = ls != nil
}
}
isShared := !net.IsCurrentUserOwnerOrManager(ctx, info.Owner, info)
role := conversions.RoleFromResourcePermissions(info.PermissionSet, isPublic)
permissions := role.WebDAVPermissions(
info.Type == provider.ResourceType_RESOURCE_TYPE_CONTAINER,
isShared,
false,
isPublic,
)
w.Header().Set(net.HeaderContentType, info.MimeType)
w.Header().Set(net.HeaderOCFileID, storagespace.FormatResourceID(*info.Id))
w.Header().Set(net.HeaderOCETag, info.Etag)
w.Header().Set(net.HeaderETag, info.Etag)
w.Header().Set(net.HeaderOCPermissions, permissions)
t := utils.TSToTime(info.Mtime).UTC()
lastModifiedString := t.Format(time.RFC1123Z)
w.Header().Set(net.HeaderLastModified, lastModifiedString)
}
}
w.WriteHeader(http.StatusCreated)
}