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handler-acl-content-lock.go
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handler-acl-content-lock.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package views
import (
"context"
"io"
"github.com/pydio/cells/common/proto/tree"
"github.com/pydio/cells/common/utils/permissions"
)
// AclContentLockFilter checks for user-defined content locks in the context AccessList.
type AclContentLockFilter struct {
AbstractHandler
}
// PutObject check locks before allowing Put operation.
func (a *AclContentLockFilter) PutObject(ctx context.Context, node *tree.Node, reader io.Reader, requestData *PutRequestData) (int64, error) {
if branchInfo, ok := GetBranchInfo(ctx, "in"); ok && branchInfo.IsInternal() {
return a.next.PutObject(ctx, node, reader, requestData)
}
if err := permissions.CheckContentLock(ctx, node); err != nil {
return 0, err
}
return a.next.PutObject(ctx, node, reader, requestData)
}
func (a *AclContentLockFilter) MultipartCreate(ctx context.Context, target *tree.Node, requestData *MultipartRequestData) (string, error) {
if branchInfo, ok := GetBranchInfo(ctx, "in"); ok && branchInfo.IsInternal() {
return a.next.MultipartCreate(ctx, target, requestData)
}
if err := permissions.CheckContentLock(ctx, target); err != nil {
return "", err
}
return a.next.MultipartCreate(ctx, target, requestData)
}
// CopyObject should check: quota on CopyObject operation? Can we copy an object on top of an existing node?
func (a *AclContentLockFilter) CopyObject(ctx context.Context, from *tree.Node, to *tree.Node, requestData *CopyRequestData) (int64, error) {
return a.next.CopyObject(ctx, from, to, requestData)
}
func (a *AclContentLockFilter) WrappedCanApply(srcCtx context.Context, targetCtx context.Context, operation *tree.NodeChangeEvent) error {
var lockErr error
switch operation.GetType() {
case tree.NodeChangeEvent_CREATE, tree.NodeChangeEvent_UPDATE_CONTENT:
lockErr = permissions.CheckContentLock(targetCtx, operation.GetTarget())
case tree.NodeChangeEvent_DELETE, tree.NodeChangeEvent_UPDATE_PATH:
lockErr = permissions.CheckContentLock(srcCtx, operation.GetSource())
}
if lockErr != nil {
return lockErr
}
return a.next.WrappedCanApply(srcCtx, targetCtx, operation)
}