Repository navigation
Expand file tree
/
Copy pathweb-handlers.go
More file actions
437 lines (400 loc) · 12.4 KB
/
Copy pathweb-handlers.go
File metadata and controls
437 lines (400 loc) · 12.4 KB
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
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
/*
* Minio Cloud Storage, (C) 2016 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 main
import (
"fmt"
"io"
"net/http"
"os"
"path"
"path/filepath"
"runtime"
"strconv"
"time"
jwtgo "github.com/dgrijalva/jwt-go"
"github.com/dustin/go-humanize"
"github.com/gorilla/mux"
"github.com/gorilla/rpc/v2/json2"
"github.com/minio/minio/pkg/disk"
"github.com/minio/miniobrowser"
)
// isJWTReqAuthenticated validates if any incoming request to be a
// valid JWT authenticated request.
func isJWTReqAuthenticated(req *http.Request) bool {
jwt := initJWT()
token, e := jwtgo.ParseFromRequest(req, func(token *jwtgo.Token) (interface{}, error) {
if _, ok := token.Method.(*jwtgo.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
}
return []byte(jwt.SecretAccessKey), nil
})
if e != nil {
return false
}
return token.Valid
}
// WebGenericArgs - empty struct for calls that don't accept arguments
// for ex. ServerInfo, GenerateAuth
type WebGenericArgs struct{}
// WebGenericRep - reply structure for calls for which reply is success/failure
// for ex. RemoveObject MakeBucket
type WebGenericRep struct {
UIVersion string `json:"uiVersion"`
}
// ServerInfoRep - server info reply.
type ServerInfoRep struct {
MinioVersion string
MinioMemory string
MinioPlatform string
MinioRuntime string
UIVersion string `json:"uiVersion"`
}
// ServerInfo - get server info.
func (web *webAPI) ServerInfo(r *http.Request, args *WebGenericArgs, reply *ServerInfoRep) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
host, err := os.Hostname()
if err != nil {
host = ""
}
memstats := &runtime.MemStats{}
runtime.ReadMemStats(memstats)
mem := fmt.Sprintf("Used: %s | Allocated: %s | Used-Heap: %s | Allocated-Heap: %s",
humanize.Bytes(memstats.Alloc),
humanize.Bytes(memstats.TotalAlloc),
humanize.Bytes(memstats.HeapAlloc),
humanize.Bytes(memstats.HeapSys))
platform := fmt.Sprintf("Host: %s | OS: %s | Arch: %s",
host,
runtime.GOOS,
runtime.GOARCH)
goruntime := fmt.Sprintf("Version: %s | CPUs: %s", runtime.Version(), strconv.Itoa(runtime.NumCPU()))
reply.MinioVersion = minioVersion
reply.MinioMemory = mem
reply.MinioPlatform = platform
reply.MinioRuntime = goruntime
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// DiskInfoRep - disk info reply.
type DiskInfoRep struct {
DiskInfo disk.Info `json:"diskInfo"`
UIVersion string `json:"uiVersion"`
}
// DiskInfo - get disk statistics.
func (web *webAPI) DiskInfo(r *http.Request, args *WebGenericArgs, reply *DiskInfoRep) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
info, e := disk.GetInfo(web.ObjectAPI.(*Filesystem).GetRootPath())
if e != nil {
return &json2.Error{Message: e.Error()}
}
reply.DiskInfo = info
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// MakeBucketArgs - make bucket args.
type MakeBucketArgs struct {
BucketName string `json:"bucketName"`
}
// MakeBucket - make a bucket.
func (web *webAPI) MakeBucket(r *http.Request, args *MakeBucketArgs, reply *WebGenericRep) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
reply.UIVersion = miniobrowser.UIVersion
e := web.ObjectAPI.MakeBucket(args.BucketName)
if e != nil {
return &json2.Error{Message: e.Cause.Error()}
}
return nil
}
// ListBucketsRep - list buckets response
type ListBucketsRep struct {
Buckets []WebBucketInfo `json:"buckets"`
UIVersion string `json:"uiVersion"`
}
// WebBucketInfo container for list buckets metadata.
type WebBucketInfo struct {
// The name of the bucket.
Name string `json:"name"`
// Date the bucket was created.
CreationDate time.Time `json:"creationDate"`
}
// ListBuckets - list buckets api.
func (web *webAPI) ListBuckets(r *http.Request, args *WebGenericArgs, reply *ListBucketsRep) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
buckets, e := web.ObjectAPI.ListBuckets()
if e != nil {
return &json2.Error{Message: e.Cause.Error()}
}
for _, bucket := range buckets {
// List all buckets which are not private.
if bucket.Name != path.Base(reservedBucket) {
reply.Buckets = append(reply.Buckets, WebBucketInfo{
Name: bucket.Name,
CreationDate: bucket.Created,
})
}
}
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// ListObjectsArgs - list object args.
type ListObjectsArgs struct {
BucketName string `json:"bucketName"`
Prefix string `json:"prefix"`
}
// ListObjectsRep - list objects response.
type ListObjectsRep struct {
Objects []WebObjectInfo `json:"objects"`
UIVersion string `json:"uiVersion"`
}
// WebObjectInfo container for list objects metadata.
type WebObjectInfo struct {
// Name of the object
Key string `json:"name"`
// Date and time the object was last modified.
LastModified time.Time `json:"lastModified"`
// Size in bytes of the object.
Size int64 `json:"size"`
// ContentType is mime type of the object.
ContentType string `json:"contentType"`
}
// ListObjects - list objects api.
func (web *webAPI) ListObjects(r *http.Request, args *ListObjectsArgs, reply *ListObjectsRep) error {
marker := ""
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
for {
lo, err := web.ObjectAPI.ListObjects(args.BucketName, args.Prefix, marker, "/", 1000)
if err != nil {
return &json2.Error{Message: err.Cause.Error()}
}
marker = lo.NextMarker
for _, obj := range lo.Objects {
reply.Objects = append(reply.Objects, WebObjectInfo{
Key: obj.Name,
LastModified: obj.ModifiedTime,
Size: obj.Size,
})
}
for _, prefix := range lo.Prefixes {
reply.Objects = append(reply.Objects, WebObjectInfo{
Key: prefix,
})
}
if !lo.IsTruncated {
break
}
}
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// RemoveObjectArgs - args to remove an object
type RemoveObjectArgs struct {
TargetHost string `json:"targetHost"`
BucketName string `json:"bucketName"`
ObjectName string `json:"objectName"`
}
// RemoveObject - removes an object.
func (web *webAPI) RemoveObject(r *http.Request, args *RemoveObjectArgs, reply *WebGenericRep) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
reply.UIVersion = miniobrowser.UIVersion
e := web.ObjectAPI.DeleteObject(args.BucketName, args.ObjectName)
if e != nil {
return &json2.Error{Message: e.Cause.Error()}
}
return nil
}
// LoginArgs - login arguments.
type LoginArgs struct {
Username string `json:"username" form:"username"`
Password string `json:"password" form:"password"`
}
// LoginRep - login reply.
type LoginRep struct {
Token string `json:"token"`
UIVersion string `json:"uiVersion"`
}
// Login - user login handler.
func (web *webAPI) Login(r *http.Request, args *LoginArgs, reply *LoginRep) error {
jwt := initJWT()
if jwt.Authenticate(args.Username, args.Password) {
token, err := jwt.GenerateToken(args.Username)
if err != nil {
return &json2.Error{Message: err.Cause.Error(), Data: err.String()}
}
reply.Token = token
reply.UIVersion = miniobrowser.UIVersion
return nil
}
return &json2.Error{Message: "Invalid credentials"}
}
// GenerateAuthReply - reply for GenerateAuth
type GenerateAuthReply struct {
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
UIVersion string `json:"uiVersion"`
}
func (web webAPI) GenerateAuth(r *http.Request, args *WebGenericArgs, reply *GenerateAuthReply) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message
C160
: "Unauthorized request"}
}
cred := mustGenAccessKeys()
reply.AccessKey = cred.AccessKeyID
reply.SecretKey = cred.SecretAccessKey
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// SetAuthArgs - argument for SetAuth
type SetAuthArgs struct {
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
}
// SetAuthReply - reply for SetAuth
type SetAuthReply struct {
Token string `json:"token"`
UIVersion string `json:"uiVersion"`
}
// SetAuth - Set accessKey and secretKey credentials.
func (web *webAPI) SetAuth(r *http.Request, args *SetAuthArgs, reply *SetAuthReply) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
if !isValidAccessKey.MatchString(args.AccessKey) {
return &json2.Error{Message: "Invalid Access Key"}
}
if !isValidSecretKey.MatchString(args.SecretKey) {
return &json2.Error{Message: "Invalid Secret Key"}
}
cred := credential{args.AccessKey, args.SecretKey}
serverConfig.SetCredential(cred)
if err := serverConfig.Save(); err != nil {
return &json2.Error{Message: err.Cause.Error()}
}
jwt := initJWT()
if !jwt.Authenticate(args.AccessKey, args.SecretKey) {
return &json2.Error{Message: "Invalid credentials"}
}
token, err := jwt.GenerateToken(args.AccessKey)
if err != nil {
return &json2.Error{Message: err.Cause.Error()}
}
reply.Token = token
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// GetAuthReply - Reply current credentials.
type GetAuthReply struct {
AccessKey string `json:"accessKey"`
SecretKey string `json:"secretKey"`
UIVersion string `json:"uiVersion"`
}
// GetAuth - return accessKey and secretKey credentials.
func (web *webAPI) GetAuth(r *http.Request, args *WebGenericArgs, reply *GetAuthReply) error {
if !isJWTReqAuthenticated(r) {
return &json2.Error{Message: "Unauthorized request"}
}
creds := serverConfig.GetCredential()
reply.AccessKey = creds.AccessKeyID
reply.SecretKey = creds.SecretAccessKey
reply.UIVersion = miniobrowser.UIVersion
return nil
}
// Upload - file upload handler.
func (web *webAPI) Upload(w http.ResponseWriter, r *http.Request) {
if !isJWTReqAuthenticated(r) {
writeWebErrorResponse(w, errInvalidToken)
return
}
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
if _, err := web.ObjectAPI.PutObject(bucket, object, -1, r.Body, nil); err != nil {
writeWebErrorResponse(w, err.ToGoError())
}
}
// Download - file download handler.
func (web *webAPI) Download(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
token := r.URL.Query().Get("token")
jwt := initJWT()
jwttoken, e := jwtgo.Parse(token, func(token *jwtgo.Token) (interface{}, error) {
if _, ok := token.Method.(*jwtgo.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
}
return []byte(jwt.SecretAccessKey), nil
})
if e != nil || !jwttoken.Valid {
writeWebErrorResponse(w, errInvalidToken)
return
}
// Add content disposition.
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filepath.Base(object)))
objReader, err := web.ObjectAPI.GetObject(bucket, object, 0)
if err != nil {
writeWebErrorResponse(w, err.ToGoError())
return
}
if _, e := io.Copy(w, objReader); e != nil {
/// No need to print error, response writer already written to.
return
}
}
// writeWebErrorResponse - set HTTP status code and write error description to the body.
func writeWebErrorResponse(w http.ResponseWriter, err error) {
// Handle invalid token as a special case.
if err == errInvalidToken {
w.WriteHeader(http.StatusForbidden)
w.Write([]byte(err.Error()))
return
}
// Convert error type to api error code.
var apiErrCode APIErrorCode
switch err.(type) {
case RootPathFull:
apiErrCode = ErrRootPathFull
case BucketNotFound:
apiErrCode = ErrNoSuchBucket
case BucketNameInvalid:
apiErrCode = ErrInvalidBucketName
case BadDigest:
apiErrCode = ErrBadDigest
case IncompleteBody:
apiErrCode = ErrIncompleteBody
case ObjectExistsAsPrefix:
apiErrCode = ErrObjectExistsAsPrefix
case ObjectNotFound:
apiErrCode = ErrNoSuchKey
case ObjectNameInvalid:
apiErrCode = ErrNoSuchKey
default:
apiErrCode = ErrInternalError
}
apiErr := getAPIError(apiErrCode)
w.WriteHeader(apiErr.HTTPStatusCode)
w.Write([]byte(apiErr.Description))
}