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handler-path-workspace.go
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/
handler-path-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"
"encoding/json"
"fmt"
servicecontext "github.com/pydio/cells/common/service/context"
context2 "github.com/pydio/cells/common/utils/context"
"strings"
"github.com/pydio/cells/common"
"github.com/micro/go-micro/client"
"github.com/micro/go-micro/errors"
"github.com/pydio/cells/common/proto/idm"
"github.com/pydio/cells/common/proto/tree"
"github.com/pydio/cells/common/utils/permissions"
)
type PathWorkspaceHandler struct {
AbstractBranchFilter
}
func NewPathWorkspaceHandler() *PathWorkspaceHandler {
u := &PathWorkspaceHandler{}
u.inputMethod = u.updateBranchInfo
u.outputMethod = u.updateOutputBranch
return u
}
func (a *PathWorkspaceHandler) extractWs(ctx context.Context, node *tree.Node) (*idm.Workspace, bool, error) {
// Admin context, fake workspace with root ROOT
if admin, a := ctx.Value(ctxAdminContextKey{}).(bool); admin && a {
ws := &idm.Workspace{}
ws.UUID = "ROOT"
ws.RootUUIDs = []string{"ROOT"}
ws.Slug = "ROOT"
return ws, true, nil
}
// User context, folder path must start with /wsId/ or we are listing the root.
if accessList, ok := ctx.Value(CtxUserAccessListKey{}).(*permissions.AccessList); ok {
parts := strings.Split(strings.Trim(node.Path, "/"), "/")
if len(parts) > 0 && len(parts[0]) > 0 {
// Find by slug
for _, ws := range accessList.Workspaces {
if ws.Slug == parts[0] {
node.Path = strings.Join(parts[1:], "/")
return ws, true, nil
}
}
// There is a workspace but it is not in the ACL !
return nil, false, errors.Forbidden("workspace.not.accessible", fmt.Sprintf("Workspace %s is not accessible", parts[0]))
} else {
// Root without workspace part
return nil, false, nil
}
}
return nil, false, nil
}
func (a *PathWorkspaceHandler) updateBranchInfo(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
}
branchInfo := BranchInfo{}
out := node.Clone()
ws, ok, err := a.extractWs(ctx, out)
if err != nil {
return ctx, node, err
} else if ok {
branchInfo.Workspace = *ws
ctx = context2.WithAdditionalMetadata(ctx, map[string]string{
servicecontext.CtxWorkspaceUuid:ws.UUID,
})
return WithBranchInfo(ctx, identifier, branchInfo), out, nil
}
return ctx, node, errors.NotFound(VIEWS_LIBRARY_NAME, "Workspace not found in Path")
}
func (a *PathWorkspaceHandler) updateOutputBranch(ctx context.Context, node *tree.Node, identifier string) (context.Context, *tree.Node, error) {
// Prepend Slug to path
if info, set := GetBranchInfo(ctx, identifier); set && info.UUID != "ROOT" {
out := node.Clone()
out.Path = info.Slug + "/" + node.Path
return ctx, out, nil
}
return ctx, node, nil
}
func (a *PathWorkspaceHandler) ReadNode(ctx context.Context, in *tree.ReadNodeRequest, opts ...client.CallOption) (*tree.ReadNodeResponse, error) {
_, _, err := a.updateBranchInfo(ctx, &tree.Node{Path: in.Node.Path}, "in")
if err != nil {
if errors.Parse(err.Error()).Status == "Not Found" {
// Return a fake root node
return &tree.ReadNodeResponse{Success: true, Node: &tree.Node{Path: ""}}, nil
} else {
return nil, err
}
}
return a.AbstractBranchFilter.ReadNode(ctx, in, opts...)
}
func (a *PathWorkspaceHandler) ListNodes(ctx context.Context, in *tree.ListNodesRequest, opts ...client.CallOption) (tree.NodeProvider_ListNodesClient, error) {
_, _, wsFound := a.updateBranchInfo(ctx, &tree.Node{Path: in.Node.Path}, "in")
if wsFound != nil && errors.Parse(wsFound.Error()).Status == "Not Found" {
// List user workspaces here
accessList, ok := ctx.Value(CtxUserAccessListKey{}).(*permissions.AccessList)
if !ok {
return nil, errors.InternalServerError(VIEWS_LIBRARY_NAME, "Cannot find user workspaces")
}
streamer := NewWrappingStreamer()
go func() {
defer streamer.Close()
wss := accessList.Workspaces
for wsId, wsPermissions := range accessList.GetAccessibleWorkspaces(ctx) {
ws, o := wss[wsId]
if !o {
// This is the case if wsId is "settings" or "homepage" => ignore!
continue
}
if len(ws.RootUUIDs) > 0 {
node := &tree.Node{
Type: tree.NodeType_COLLECTION,
Uuid: ws.RootUUIDs[0],
Path: ws.Slug,
}
// Pass workspace data along in node MetaStore
node.SetMeta(common.META_FLAG_WORKSPACE_SCOPE, ws.Scope.String())
node.SetMeta(common.META_FLAG_WORKSPACE_PERMISSIONS, wsPermissions)
node.SetMeta(common.META_FLAG_WORKSPACE_LABEL, ws.Label)
node.SetMeta(common.META_FLAG_WORKSPACE_DESCRIPTION, ws.Description)
node.SetMeta(common.META_FLAG_WORKSPACE_SLUG, ws.Slug)
node.SetMeta(common.META_FLAG_WORKSPACE_UUID, ws.UUID)
if common.PackageType == "PydioHome" && ws.Scope == idm.WorkspaceScope_ADMIN {
node.SetMeta(common.META_FLAG_WORKSPACE_SYNCABLE, true)
} else {
if ws.Attributes != "" && ws.Attributes != "{}" {
var aa map[string]interface{}
if e := json.Unmarshal([]byte(ws.Attributes), &aa); e == nil {
if canSync, ok := aa["ALLOW_SYNC"]; ok {
if b, o := canSync.(bool); o && b {
node.SetMeta(common.META_FLAG_WORKSPACE_SYNCABLE, true)
} else if s, o := canSync.(string); o {
if s == "true" {
node.SetMeta(common.META_FLAG_WORKSPACE_SYNCABLE, true)
}
}
}
}
}
}
streamer.Send(&tree.ListNodesResponse{Node: node})
}
}
}()
return streamer, nil
}
return a.AbstractBranchFilter.ListNodes(ctx, in, opts...)
}