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Publicstorageprovider rewrite #2646

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merged 10 commits into from
Mar 23, 2022
Merged

Publicstorageprovider rewrite #2646

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84b434c
introduce scope context
butonic Mar 17, 2022
6eaeb63
add scopes to context
butonic Mar 17, 2022
04bae06
use mrants and mountpoints for public shares
butonic Mar 17, 2022
dcdf513
add changelog
butonic Mar 17, 2022
151a1fc
update test config
butonic Mar 18, 2022
83adbbd
fix lint
butonic Mar 18, 2022
c252c1e
ocdav: replace public mountpoint fileid with grant fileid
butonic Mar 21, 2022
fc6e5d0
cleanup
butonic Mar 21, 2022
2833e9b
cleanup comments
butonic Mar 21, 2022
20392fb
prevent nil by disallowing CreateHome in public scope
butonic Mar 22, 2022
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6 changes: 6 additions & 0 deletions changelog/unreleased/publicstorageprovider-rewrite.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
Bugfix: replace public mountpoint fileid with grant fileid in ocdav

We now show the same resoucre id for resources when accessing them via a public links as when using a logged in user. This allows the web ui to start a WOPI session with the correct resource id.

https://github.com/cs3org/reva/pull/2646
https://github.com/cs3org/reva/issues/2635
35 changes: 22 additions & 13 deletions internal/grpc/interceptors/auth/auth.go
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ import (
"time"

"github.com/bluele/gcache"
authpb "github.com/cs3org/go-cs3apis/cs3/auth/provider/v1beta1"
gatewayv1beta1 "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
"github.com/cs3org/reva/v2/pkg/appctx"
Expand Down Expand Up @@ -96,9 +97,11 @@ func NewUnary(m map[string]interface{}, unprotected []string) (grpc.UnaryServerI
// to decide the storage provider.
tkn, ok := ctxpkg.ContextGetToken(ctx)
if ok {
u, err := dismantleToken(ctx, tkn, req, tokenManager, conf.GatewayAddr, false)
u, tokenScope, err := dismantleToken(ctx, tkn, req, tokenManager, conf.GatewayAddr, false)
if err == nil {
// store user and scopes in context
ctx = ctxpkg.ContextSetUser(ctx, u)
ctx = ctxpkg.ContextSetScopes(ctx, tokenScope)
}
}
return handler(ctx, req)
Expand All @@ -112,13 +115,15 @@ func NewUnary(m map[string]interface{}, unprotected []string) (grpc.UnaryServerI
}

// validate the token and ensure access to the resource is allowed
u, err := dismantleToken(ctx, tkn, req, tokenManager, conf.GatewayAddr, true)
u, tokenScope, err := dismantleToken(ctx, tkn, req, tokenManager, conf.GatewayAddr, true)
if err != nil {
log.Warn().Err(err).Msg("access token is invalid")
return nil, status.Errorf(codes.PermissionDenied, "auth: core access token is invalid")
}

// store user and scopes in context
ctx = ctxpkg.ContextSetUser(ctx, u)
ctx = ctxpkg.ContextSetScopes(ctx, tokenScope)
return handler(ctx, req)
}
return interceptor, nil
Expand Down Expand Up @@ -159,9 +164,11 @@ func NewStream(m map[string]interface{}, unprotected []string) (grpc.StreamServe
// to decide the storage provider.
tkn, ok := ctxpkg.ContextGetToken(ctx)
if ok {
u, err := dismantleToken(ctx, tkn, ss, tokenManager, conf.GatewayAddr, false)
u, tokenScope, err := dismantleToken(ctx, tkn, ss, tokenManager, conf.GatewayAddr, false)
if err == nil {
// store user and scopes in context
ctx = ctxpkg.ContextSetUser(ctx, u)
ctx = ctxpkg.ContextSetScopes(ctx, tokenScope)
ss = newWrappedServerStream(ctx, ss)
}
}
Expand All @@ -177,14 +184,15 @@ func NewStream(m map[string]interface{}, unprotected []string) (grpc.StreamServe
}

// validate the token and ensure access to the resource is allowed
u, err := dismantleToken(ctx, tkn, ss, tokenManager, conf.GatewayAddr, true)
u, tokenScope, err := dismantleToken(ctx, tkn, ss, tokenManager, conf.GatewayAddr, true)
if err != nil {
log.Warn().Err(err).Msg("access token is invalid")
return status.Errorf(codes.PermissionDenied, "auth: core access token is invalid")
}

// store user and core access token in context.
// store user and scopes in context
ctx = ctxpkg.ContextSetUser(ctx, u)
ctx = ctxpkg.ContextSetScopes(ctx, tokenScope)
wrapped := newWrappedServerStream(ctx, ss)
return handler(srv, wrapped)
}
Expand All @@ -204,39 +212,40 @@ func (ss *wrappedServerStream) Context() context.Context {
return ss.newCtx
}

func dismantleToken(ctx context.Context, tkn string, req interface{}, mgr token.Manager, gatewayAddr string, fetchUserGroups bool) (*userpb.User, error) {
// dismantleToken extracts the user and scopes from the reva access token
func dismantleToken(ctx context.Context, tkn string, req interface{}, mgr token.Manager, gatewayAddr string, fetchUserGroups bool) (*userpb.User, map[string]*authpb.Scope, error) {
u, tokenScope, err := mgr.DismantleToken(ctx, tkn)
if err != nil {
return nil, err
return nil, nil, err
}

client, err := pool.GetGatewayServiceClient(gatewayAddr)
if err != nil {
return nil, err
return nil, nil, err
}

if sharedconf.SkipUserGroupsInToken() && fetchUserGroups {
groups, err := getUserGroups(ctx, u, client)
if err != nil {
return nil, err
return nil, nil, err
}
u.Groups = groups
}

// Check if access to the resource is in the scope of the token
ok, err := scope.VerifyScope(ctx, tokenScope, req)
if err != nil {
return nil, errtypes.InternalError("error verifying scope of access token")
return nil, nil, errtypes.InternalError("error verifying scope of access token")
}
if ok {
return u, nil
return u, tokenScope, nil
}

if err = expandAndVerifyScope(ctx, req, tokenScope, gatewayAddr, mgr); err != nil {
return nil, err
return nil, nil, err
}

return u, nil
return u, tokenScope, nil
}

func getUserGroups(ctx context.Context, u *userpb.User, client gatewayv1beta1.GatewayAPIClient) ([]string, error) {
Expand Down
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