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s3: access control limited by bucket

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This commit is contained in:
Chris Lu 2020-02-22 21:34:18 -08:00
parent e83bfd0a35
commit 4ed6b584e2
2 changed files with 38 additions and 9 deletions
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13
weed/command/s3.go
View file

@ -87,6 +87,19 @@ var cmdS3 = &Command{
"Read",
"Write"
]
},
{
"name": "user_limited_to_bucket1",
"credentials": [
{
"accessKey": "some_access_key4",
"secretKey": "some_secret_key4"
}
],
"actions": [
"Read:bucket1",
"Write:bucket1"
]
}
]
}

34
weed/s3api/auth_credentials.go
View file

@ -7,6 +7,7 @@ import (
"net/http"
"github.com/golang/protobuf/jsonpb"
"github.com/gorilla/mux"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/iam_pb"
@ -101,14 +102,14 @@ func (iam *IdentityAccessManagement) lookupByAccessKey(accessKey string) (identi
return nil, nil, false
}
func (iam *IdentityAccessManagement) Auth(f http.HandlerFunc, actions ...Action) http.HandlerFunc {
func (iam *IdentityAccessManagement) Auth(f http.HandlerFunc, action Action) http.HandlerFunc {
if len(iam.identities) == 0 {
return f
}
return func(w http.ResponseWriter, r *http.Request) {
errCode := iam.authRequest(r, actions)
errCode := iam.authRequest(r, action)
if errCode == ErrNone {
f(w, r)
return
@ -118,7 +119,7 @@ func (iam *IdentityAccessManagement) Auth(f http.HandlerFunc, actions ...Action)
}
// check whether the request has valid access keys
func (iam *IdentityAccessManagement) authRequest(r *http.Request, actions []Action) ErrorCode {
func (iam *IdentityAccessManagement) authRequest(r *http.Request, action Action) ErrorCode {
var identity *Identity
var s3Err ErrorCode
switch getRequestAuthType(r) {
@ -152,7 +153,10 @@ func (iam *IdentityAccessManagement) authRequest(r *http.Request, actions []Acti
glog.V(3).Infof("user name: %v actions: %v", identity.Name, identity.Actions)
if !identity.canDo(actions) {
vars := mux.Vars(r)
bucket := vars["bucket"]
if !identity.canDo(action, bucket) {
return ErrAccessDenied
}
@ -160,12 +164,24 @@ func (iam *IdentityAccessManagement) authRequest(r *http.Request, actions []Acti
}
func (identity *Identity) canDo(actions []Action) bool {
func (identity *Identity) canDo(action Action, bucket string) bool {
for _, a := range identity.Actions {
for _, b := range actions {
if a == b {
return true
}
if a == "Admin" {
return true
}
}
for _, a := range identity.Actions {
if a == action {
return true
}
}
if bucket == "" {
return false
}
limitedByBucket := string(action) + ":" + bucket
for _, a := range identity.Actions {
if string(a) == limitedByBucket {
return true
}
}
return false