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handler-uuid-workspace.go
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/
handler-uuid-workspace.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"
"path"
"strings"
servicecontext "github.com/pydio/cells/common/service/context"
context2 "github.com/pydio/cells/common/utils/context"
"github.com/micro/go-micro/errors"
"go.uber.org/zap"
"github.com/pydio/cells/common/log"
"github.com/pydio/cells/common/proto/idm"
"github.com/pydio/cells/common/proto/tree"
"github.com/pydio/cells/common/utils/permissions"
)
// UuidNodeHandler is an AbstractBranchFilter extracting workspace info based on node UUID.
type UuidNodeHandler struct {
AbstractBranchFilter
}
func NewUuidNodeHandler() *UuidNodeHandler {
u := &UuidNodeHandler{}
u.inputMethod = u.updateInputBranch
u.outputMethod = u.updateOutputBranch
return u
}
func (h *UuidNodeHandler) updateInputBranch(ctx context.Context, node *tree.Node, identifier string) (context.Context, *tree.Node, error) {
if info, alreadySet := GetBranchInfo(ctx, identifier); alreadySet && info.Client != nil {
return ctx, node, nil
}
if isAdmin := ctx.Value(ctxAdminContextKey{}); isAdmin != nil {
ws := &idm.Workspace{UUID: "ROOT", RootUUIDs: []string{"ROOT"}, Slug: "ROOT"}
branchInfo := BranchInfo{}
branchInfo.Workspace = *ws
ctx = WithBranchInfo(ctx, identifier, branchInfo)
return ctx, node, nil
}
accessList, ok := ctx.Value(CtxUserAccessListKey{}).(*permissions.AccessList)
if !ok {
return ctx, node, errors.InternalServerError(VIEWS_LIBRARY_NAME, "Cannot load access list")
}
// Update Access List with resolved virtual nodes
virtualManager := GetVirtualNodesManager()
cPool := h.clientsPool
for _, vNode := range virtualManager.ListNodes() {
if aclNodeMask, has := accessList.GetNodesBitmasks()[vNode.Uuid]; has {
if resolvedRoot, err := virtualManager.ResolveInContext(ctx, vNode, cPool, false); err == nil {
log.Logger(ctx).Debug("Updating Access List with resolved node Uuid", zap.Any("virtual", vNode), zap.Any("resolved", resolvedRoot))
accessList.ReplicateBitmask(vNode.Uuid, resolvedRoot.Uuid)
for _, roots := range accessList.GetWorkspacesNodes() {
for rootId, _ := range roots {
if rootId == vNode.Uuid {
delete(roots, vNode.Uuid)
roots[resolvedRoot.Uuid] = aclNodeMask
}
}
}
}
}
}
parents, err := BuildAncestorsList(ctx, h.clientsPool.GetTreeClient(), node)
if err != nil {
return ctx, node, err
}
workspaces, _ := accessList.BelongsToWorkspaces(ctx, parents...)
if len(workspaces) == 0 {
log.Logger(ctx).Debug("Node des not belong to any accessible workspace!", accessList.Zap(), zap.Int("parents length", len(parents)))
return ctx, node, errors.Forbidden(VIEWS_LIBRARY_NAME, "Node does not belong to any accessible workspace!")
}
// Use first workspace by default
branchInfo := BranchInfo{
AncestorsList: make(map[string][]*tree.Node, 1),
Workspace: *workspaces[0],
}
branchInfo.AncestorsList[node.Path] = parents
ctx = context2.WithAdditionalMetadata(ctx, map[string]string{
servicecontext.CtxWorkspaceUuid: branchInfo.Workspace.UUID,
})
return WithBranchInfo(ctx, identifier, branchInfo), node, nil
}
func (h *UuidNodeHandler) updateOutputBranch(ctx context.Context, node *tree.Node, identifier string) (context.Context, *tree.Node, error) {
var accessList *permissions.AccessList
var ok bool
if accessList, ok = ctx.Value(CtxUserAccessListKey{}).(*permissions.AccessList); !ok {
return ctx, node, nil
}
if _, ancestors, e := AncestorsListFromContext(ctx, node, identifier, h.clientsPool, false); e == nil {
out := node.Clone()
workspaces, wsRoots := accessList.BelongsToWorkspaces(ctx, ancestors...)
log.Logger(ctx).Debug("Belongs to workspaces", zap.Int("ws length", len(workspaces)), zap.Any("wsRoots", wsRoots))
for _, ws := range workspaces {
if relativePath, e := h.relativePathToWsRoot(ctx, ws, node.Path, wsRoots[ws.UUID]); e == nil {
out.AppearsIn = append(out.AppearsIn, &tree.WorkspaceRelativePath{
WsUuid: ws.UUID,
WsLabel: ws.Label,
WsSlug: ws.Slug,
WsScope: ws.Scope.String(),
Path: relativePath,
})
} else {
log.Logger(ctx).Error("Error while computing relative path to root", zap.Error(e))
}
}
return ctx, out, nil
}
return ctx, node, nil
}
func (h *UuidNodeHandler) relativePathToWsRoot(ctx context.Context, ws *idm.Workspace, nodeFullPath string, rootNodeId string) (string, error) {
if resp, e := h.next.ReadNode(ctx, &tree.ReadNodeRequest{Node: &tree.Node{Uuid: rootNodeId}}); e == nil {
rootPath := resp.Node.Path
if strings.HasPrefix(nodeFullPath, rootPath) {
relPath := strings.TrimPrefix(nodeFullPath, rootPath)
if len(ws.RootUUIDs) > 1 {
// This workspace has multiple root, prepend the fake root key
rootKey := h.makeRootKey(resp.Node)
relPath = path.Join(rootKey, relPath)
}
return relPath, nil
} else {
return "", errors.NotFound("RouterUuid", "Cannot subtract paths "+nodeFullPath+" - "+rootPath)
}
} else {
return "", e
}
}