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rest.go
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rest.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 rest implements all the share logic for Cells and Links.
//
// It is a high-level service using many other services for crud-ing shares through the REST API.
package rest
import (
"context"
"fmt"
"strings"
"time"
"github.com/emicklei/go-restful"
"github.com/golang/protobuf/ptypes"
"github.com/golang/protobuf/ptypes/any"
"github.com/gosimple/slug"
"github.com/micro/go-micro/errors"
"github.com/pborman/uuid"
"go.uber.org/zap"
"github.com/pydio/cells/common"
"github.com/pydio/cells/common/auth/claim"
"github.com/pydio/cells/common/log"
"github.com/pydio/cells/common/micro"
"github.com/pydio/cells/common/proto/idm"
"github.com/pydio/cells/common/proto/rest"
"github.com/pydio/cells/common/proto/tree"
"github.com/pydio/cells/common/service"
service2 "github.com/pydio/cells/common/service/proto"
"github.com/pydio/cells/common/service/resources"
"github.com/pydio/cells/common/utils"
"github.com/pydio/cells/common/views"
)
// SharesHandler implements handler methods for the share REST service.
type SharesHandler struct {
resources.ResourceProviderHandler
}
// NewSharesHandler simply creates a new SharesHandler.
func NewSharesHandler() *SharesHandler {
h := new(SharesHandler)
h.ServiceName = common.SERVICE_WORKSPACE
h.ResourceName = "rooms"
//h.PoliciesLoader = h.loadPoliciesForResource
return h
}
// SwaggerTags list the names of the service tags declared in the swagger json implemented by this service.
func (h *SharesHandler) SwaggerTags() []string {
return []string{"ShareService"}
}
// Filter returns a function to filter the swagger path.
func (h *SharesHandler) Filter() func(string) string {
return nil
}
// PutCell creates or updates a shared room (a.k.a a Cell) via REST API.
func (h *SharesHandler) PutCell(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
var shareRequest rest.PutCellRequest
err := req.ReadEntity(&shareRequest)
if err != nil {
log.Logger(ctx).Error("cannot fetch rest.CellRequest", zap.Error(err))
service.RestError500(req, rsp, err)
return
}
log.Logger(ctx).Debug("Received Share.Cell API request", zap.Any("input", &shareRequest))
// Init Root Nodes and check permissions
err, createdCellNode, readonly := h.ParseRootNodes(ctx, &shareRequest)
if err != nil {
if errors.Parse(err.Error()).Code == 403 {
service.RestError403(req, rsp, err)
} else {
service.RestError500(req, rsp, err)
}
return
}
workspace, wsCreated, err := h.GetOrCreateWorkspace(ctx, shareRequest.Room.Uuid, idm.WorkspaceScope_ROOM, shareRequest.Room.Label, shareRequest.Room.Description, false)
if err != nil {
service.RestError500(req, rsp, err)
return
}
if !wsCreated && !h.IsContextEditable(ctx, workspace.UUID, workspace.Policies) {
service.RestError403(req, rsp, fmt.Errorf("you are not allowed to edit this cell"))
return
}
// Now set ACLs on Workspace
aclClient := idm.NewACLServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_ACL, defaults.NewClient())
var currentAcls []*idm.ACL
var currentRoots []string
if !wsCreated {
var err error
currentAcls, currentRoots, err = h.CommonAclsForWorkspace(ctx, workspace.UUID)
if err != nil {
service.RestError500(req, rsp, err)
return
}
} else {
// New workspace, create "workspace-path" ACLs
for _, node := range shareRequest.Room.RootNodes {
aclClient.CreateACL(ctx, &idm.CreateACLRequest{
ACL: &idm.ACL{
NodeID: node.Uuid,
WorkspaceID: workspace.UUID,
Action: &idm.ACLAction{Name: utils.ACL_WSROOT_ACTION_NAME, Value: "uuid:" + node.Uuid},
},
})
}
// For new specific CellNode, set this node as a RecycleRoot
if createdCellNode != nil {
aclClient.CreateACL(ctx, &idm.CreateACLRequest{
ACL: &idm.ACL{
NodeID: createdCellNode.Uuid,
WorkspaceID: workspace.UUID,
Action: utils.ACL_RECYCLE_ROOT,
},
})
}
}
log.Logger(ctx).Debug("Current Roots", zap.Any("crt", currentRoots))
targetAcls := h.ComputeTargetAcls(ctx, &shareRequest, workspace.UUID, readonly)
log.Logger(ctx).Debug("Share ACLS", zap.Any("current", currentAcls), zap.Any("target", targetAcls))
add, remove := h.DiffAcls(ctx, currentAcls, targetAcls)
log.Logger(ctx).Debug("Diff ACLS", zap.Any("add", add), zap.Any("remove", remove))
for _, acl := range add {
_, err := aclClient.CreateACL(ctx, &idm.CreateACLRequest{ACL: acl})
if err != nil {
log.Logger(ctx).Error("Share: Error while creating ACLs", zap.Error(err))
}
}
for _, acl := range remove {
removeQuery, _ := ptypes.MarshalAny(&idm.ACLSingleQuery{
NodeIDs: []string{acl.NodeID},
RoleIDs: []string{acl.RoleID},
WorkspaceIDs: []string{acl.WorkspaceID},
Actions: []*idm.ACLAction{acl.Action},
})
_, err := aclClient.DeleteACL(ctx, &idm.DeleteACLRequest{Query: &service2.Query{SubQueries: []*any.Any{removeQuery}}})
if err != nil {
log.Logger(ctx).Error("Share: Error while deleting ACLs", zap.Error(err))
}
}
log.Logger(ctx).Debug("Share Policies", zap.Any("before", workspace.Policies))
h.UpdatePoliciesFromAcls(ctx, workspace, currentAcls, targetAcls)
// Now update workspace
log.Logger(ctx).Debug("Updating workspace", zap.Any("workspace", workspace))
wsClient := idm.NewWorkspaceServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_WORKSPACE, defaults.NewClient())
if _, err := wsClient.CreateWorkspace(ctx, &idm.CreateWorkspaceRequest{Workspace: workspace}); err != nil {
service.RestError500(req, rsp, err)
return
}
// Put an Audit log if this cell has been newly created
if wsCreated {
log.Auditer(ctx).Info(
fmt.Sprintf("Created cell [%s]", shareRequest.Room.Label),
log.GetAuditId(common.AUDIT_CELL_CREATE),
zap.String(common.KEY_CELL_UUID, shareRequest.Room.Uuid),
)
} else {
log.Auditer(ctx).Info(
fmt.Sprintf("Updated cell [%s]", shareRequest.Room.Label),
log.GetAuditId(common.AUDIT_CELL_UPDATE),
zap.String(common.KEY_CELL_UUID, shareRequest.Room.Uuid),
)
}
if output, err := h.WorkspaceToCellObject(ctx, workspace); err != nil {
service.RestError500(req, rsp, err)
} else {
rsp.WriteEntity(output)
}
}
// GetCell simply retrieves a shared room from its UUID.
func (h *SharesHandler) GetCell(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
id := req.PathParameter("Uuid")
workspace, _, err := h.GetOrCreateWorkspace(ctx, id, idm.WorkspaceScope_ROOM, "", "", false)
if err != nil {
if errors.Parse(err.Error()).Code == 404 {
service.RestError404(req, rsp, err)
} else {
service.RestError500(req, rsp, err)
}
return
}
if output, err := h.WorkspaceToCellObject(ctx, workspace); err != nil {
service.RestError500(req, rsp, err)
} else {
rsp.WriteEntity(output)
}
}
// DeleteCell loads the workspace and its root nodes and eventually removes room root totally.
func (h *SharesHandler) DeleteCell(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
id := req.PathParameter("Uuid")
ws, _, e := h.GetOrCreateWorkspace(ctx, id, idm.WorkspaceScope_ROOM, "", "", false)
if e != nil || ws == nil {
service.RestError404(req, rsp, e)
return
} else if !h.IsContextEditable(ctx, id, ws.Policies) {
service.RestError403(req, rsp, fmt.Errorf("you are not allowed to edit this room"))
return
}
currWsLabel := ws.Label
log.Logger(ctx).Debug("Delete share room", zap.Any("workspaceId", id))
// This will load the workspace and its root, and eventually remove the Room root totally
if err := h.DeleteWorkspace(ctx, idm.WorkspaceScope_ROOM, id); err != nil {
service.RestError500(req, rsp, err)
return
}
// Put an Audit log if this cell has been removed without error
log.Auditer(ctx).Info(
fmt.Sprintf("Removed cell [%s]", currWsLabel),
log.GetAuditId(common.AUDIT_CELL_DELETE),
zap.String(common.KEY_CELL_UUID, id),
)
rsp.WriteEntity(&rest.DeleteCellResponse{
Success: true,
})
}
// PutShareLink creates or updates a link to a shared item.
func (h *SharesHandler) PutShareLink(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
start := time.Now()
track := func(msg string) {
log.Logger(ctx).Debug(msg, zap.Duration("t", time.Since(start)))
}
var putRequest rest.PutShareLinkRequest
if err := req.ReadEntity(&putRequest); err != nil {
service.RestError500(req, rsp, err)
return
}
link := putRequest.ShareLink
if e := h.CheckLinkRootNodes(ctx, link); e != nil {
service.RestErrorDetect(req, rsp, e)
return
}
var workspace *idm.Workspace
var user *idm.User
var err error
var create bool
aclClient := idm.NewACLServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_ACL, defaults.NewClient())
if link.Uuid == "" {
create = true
workspace, _, err = h.GetOrCreateWorkspace(ctx, "", idm.WorkspaceScope_LINK, link.Label, link.Description, false)
track("GetOrCreateWorkspace")
for _, node := range link.RootNodes {
aclClient.CreateACL(ctx, &idm.CreateACLRequest{
ACL: &idm.ACL{
NodeID: node.Uuid,
WorkspaceID: workspace.UUID,
Action: &idm.ACLAction{Name: "workspace-path", Value: "uuid:" + node.Uuid},
},
})
}
track("CreateACL")
link.Uuid = workspace.UUID
link.LinkHash = strings.Replace(uuid.NewUUID().String(), "-", "", -1)[0:12]
} else {
workspace, create, err = h.GetOrCreateWorkspace(ctx, link.Uuid, idm.WorkspaceScope_LINK, link.Label, link.Description, true)
}
if err != nil {
service.RestError500(req, rsp, err)
return
}
if !create && !h.IsContextEditable(ctx, workspace.UUID, workspace.Policies) {
service.RestError403(req, rsp, fmt.Errorf("you are not allowed to edit this link"))
return
}
track("IsContextEditable")
// Load Hidden User
user, err = h.GetOrCreateHiddenUser(ctx, link, putRequest.PasswordEnabled, putRequest.CreatePassword)
if err != nil {
service.RestError500(req, rsp, err)
return
}
track("GetOrCreateHiddenUser")
if create {
link.UserLogin = user.Login
link.UserUuid = user.Uuid
link.PasswordRequired = putRequest.PasswordEnabled
// Update Workspace Policies to make sure it's readable by the new user
workspace.Policies = append(workspace.Policies, &service2.ResourcePolicy{
Resource: workspace.UUID,
Subject: fmt.Sprintf("user:%s", user.Login),
Action: service2.ResourcePolicyAction_READ,
Effect: service2.ResourcePolicy_allow,
})
wsClient := idm.NewWorkspaceServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_WORKSPACE, defaults.NewClient())
wsClient.CreateWorkspace(ctx, &idm.CreateWorkspaceRequest{Workspace: workspace})
track("CreateWorkspace")
} else {
// Manage password if status was updated
storedLink := &rest.ShareLink{Uuid: link.Uuid}
LoadHashDocumentData(ctx, storedLink, []*idm.ACL{})
link.PasswordRequired = storedLink.PasswordRequired
var saveUser bool
if putRequest.PasswordEnabled && !storedLink.PasswordRequired {
user.Password = putRequest.CreatePassword
link.PasswordRequired = true
saveUser = true
} else if !putRequest.PasswordEnabled && storedLink.PasswordRequired {
user.Password = user.Login + PasswordComplexitySuffix
link.PasswordRequired = false
saveUser = true
} else if putRequest.PasswordEnabled && storedLink.PasswordRequired && putRequest.UpdatePassword != "" {
user.Password = putRequest.UpdatePassword
saveUser = true
}
if saveUser {
uCli := idm.NewUserServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_USER, defaults.NewClient())
_, err := uCli.CreateUser(ctx, &idm.CreateUserRequest{
User: user,
})
if err != nil {
service.RestError500(req, rsp, err)
}
}
}
err = h.UpdateACLsForHiddenUser(ctx, user.Uuid, workspace.UUID, link.RootNodes, link.Permissions, !create)
track("UpdateACLsForHiddenUser")
if err != nil {
service.RestError500(req, rsp, err)
return
}
if create {
log.Auditer(ctx).Info(
fmt.Sprintf("Created share link [%s]", link.Label),
log.GetAuditId(common.AUDIT_LINK_CREATE),
zap.String(common.KEY_LINK_UUID, link.Uuid),
)
track("Auditer")
} else {
log.Auditer(ctx).Info(
fmt.Sprintf("Updated share link [%s]", link.Label),
log.GetAuditId(common.AUDIT_LINK_UPDATE),
zap.String(common.KEY_LINK_UUID, link.Uuid),
)
}
// Update HashDocument
if err := StoreHashDocument(ctx, link, putRequest.UpdateCustomHash); err != nil {
service.RestError500(req, rsp, err)
return
}
track("StoreHashDocument")
// Reload
if output, e := h.WorkspaceToShareLinkObject(ctx, workspace); e != nil {
service.RestError500(req, rsp, e)
} else {
rsp.WriteEntity(output)
}
track("WorkspaceToShareLinkObject")
}
// GetShareLink loads link information.
func (h *SharesHandler) GetShareLink(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
id := req.PathParameter("Uuid")
workspace, _, err := h.GetOrCreateWorkspace(ctx, id, idm.WorkspaceScope_LINK, "", "", false)
if err != nil {
if errors.Parse(err.Error()).Code == 404 {
service.RestError404(req, rsp, err)
} else {
service.RestError500(req, rsp, err)
}
return
}
if output, err := h.WorkspaceToShareLinkObject(ctx, workspace); err == nil {
rsp.WriteEntity(output)
} else {
service.RestError500(req, rsp, err)
}
}
// DeleteShareLink deletes a link information.
func (h *SharesHandler) DeleteShareLink(req *restful.Request, rsp *restful.Response) {
ctx := req.Request.Context()
id := req.PathParameter("Uuid")
if ws, _, e := h.GetOrCreateWorkspace(ctx, id, idm.WorkspaceScope_LINK, "", "", false); e != nil || ws == nil {
service.RestError404(req, rsp, e)
return
} else if !h.IsContextEditable(ctx, id, ws.Policies) {
service.RestError403(req, rsp, fmt.Errorf("you are not allowed to edit this link"))
return
}
// Will try to load the workspace first, and throw an error if something goes wrong
if err := h.DeleteWorkspace(ctx, idm.WorkspaceScope_LINK, id); err != nil {
service.RestError500(req, rsp, err)
return
}
// Now delete associated Document in Docstore
if err := DeleteHashDocument(ctx, id); err != nil {
service.RestError500(req, rsp, err)
return
}
log.Auditer(ctx).Info(
fmt.Sprintf("Removed share link [%s]", id),
log.GetAuditId(common.AUDIT_LINK_UPDATE),
zap.String(common.KEY_LINK_UUID, id),
)
rsp.WriteEntity(&rest.DeleteShareLinkResponse{
Success: true,
})
}
// *********************************************************************************
// WorkspaceToCellObject rewrites a workspace to a Cell object by reloading its ACLs.
func (h *SharesHandler) WorkspaceToCellObject(ctx context.Context, workspace *idm.Workspace) (*rest.Cell, error) {
acls, detectedRoots, err := h.CommonAclsForWorkspace(ctx, workspace.UUID)
if err != nil {
log.Logger(ctx).Error("Error while loading common acls for workspace", zap.Error(err))
return nil, err
}
log.Logger(ctx).Debug("Detected Roots for object", zap.Any("roots", detectedRoots))
roomAcls := h.AclsToCellAcls(ctx, acls)
log.Logger(ctx).Debug("Computed roomAcls before load", zap.Any("roomAcls", roomAcls))
if err := h.LoadCellAclsObjects(ctx, roomAcls); err != nil {
log.Logger(ctx).Error("Error on loadRomAclsObjects", zap.Error(err))
return nil, err
}
rootNodes := h.LoadDetectedRootNodes(ctx, detectedRoots)
var nodesSlices []*tree.Node
for _, node := range rootNodes {
nodesSlices = append(nodesSlices, node)
}
return &rest.Cell{
Uuid: workspace.UUID,
Label: workspace.Label,
Description: workspace.Description,
RootNodes: nodesSlices,
ACLs: roomAcls,
Policies: workspace.Policies,
PoliciesContextEditable: h.IsContextEditable(ctx, workspace.UUID, workspace.Policies),
}, nil
}
func (h *SharesHandler) WorkspaceToShareLinkObject(ctx context.Context, workspace *idm.Workspace) (*rest.ShareLink, error) {
acls, detectedRoots, err := h.CommonAclsForWorkspace(ctx, workspace.UUID)
if err != nil {
return nil, err
}
shareLink := &rest.ShareLink{
Uuid: workspace.UUID,
Label: workspace.Label,
Description: workspace.Description,
Policies: workspace.Policies,
PoliciesContextEditable: h.IsContextEditable(ctx, workspace.UUID, workspace.Policies),
}
for _, rootId := range detectedRoots {
shareLink.RootNodes = append(shareLink.RootNodes, &tree.Node{Uuid: rootId})
}
if err := LoadHashDocumentData(ctx, shareLink, acls); err != nil {
return nil, err
}
shareLink.PoliciesContextEditable = h.IsContextEditable(ctx, workspace.UUID, workspace.Policies)
return shareLink, nil
}
// LoadDetectedRootNodes find actual nodes in the tree, and enrich their metadata if they appear
// in many workspaces for the current user.
func (h *SharesHandler) LoadDetectedRootNodes(ctx context.Context, detectedRoots []string) (rootNodes map[string]*tree.Node) {
rootNodes = make(map[string]*tree.Node)
router := views.NewUuidRouter(views.RouterOptions{})
metaClient := tree.NewNodeProviderClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_META, defaults.NewClient())
eventFilter := views.NewRouterEventFilter(views.RouterOptions{AdminView: false})
accessList, _ := utils.AccessListFromContextClaims(ctx)
for _, rootId := range detectedRoots {
request := &tree.ReadNodeRequest{Node: &tree.Node{Uuid: rootId}}
if resp, err := router.ReadNode(ctx, request); err == nil {
node := resp.Node
var multipleMeta []*tree.WorkspaceRelativePath
for _, ws := range accessList.Workspaces {
if filtered, ok := eventFilter.WorkspaceCanSeeNode(ctx, ws, resp.Node); ok {
multipleMeta = append(multipleMeta, &tree.WorkspaceRelativePath{
WsLabel: ws.Label,
WsUuid: ws.UUID,
Path: filtered.Path,
})
node = filtered
}
}
if len(multipleMeta) > 0 {
node.AppearsIn = multipleMeta
}
if metaResp, e := metaClient.ReadNode(ctx, request); e == nil {
var isRoomNode bool
if metaResp.GetNode().GetMeta("CellNode", &isRoomNode); err == nil && isRoomNode {
node.SetMeta("CellNode", true)
}
}
rootNodes[node.GetUuid()] = node.WithoutReservedMetas()
} else {
log.Logger(ctx).Debug("Share Load - Ignoring Root Node, probably not synced yet", zap.String("nodeId", rootId), zap.Error(err))
}
}
return
}
// AclsToCellAcls Rewrites a flat list of ACLs to a structured map of CellAcls (more easily usable by clients).
func (h *SharesHandler) AclsToCellAcls(ctx context.Context, acls []*idm.ACL) map[string]*rest.CellAcl {
roomAcls := make(map[string]*rest.CellAcl)
registeredRolesAcls := make(map[string]bool)
for _, acl := range acls {
id := acl.RoleID + "-" + acl.Action.Name
if _, has := registeredRolesAcls[id]; !has {
var roomAcl *rest.CellAcl
if roomAcl, has = roomAcls[acl.RoleID]; !has {
roomAcl = &rest.CellAcl{RoleId: acl.RoleID, Actions: []*idm.ACLAction{}}
roomAcls[acl.RoleID] = roomAcl
}
roomAcl.Actions = append(roomAcl.Actions, acl.Action)
registeredRolesAcls[id] = true
}
}
return roomAcls
}
// LoadCellAclsObjects loads associated users / groups / roles based on the role Ids of the acls.
func (h *SharesHandler) LoadCellAclsObjects(ctx context.Context, roomAcls map[string]*rest.CellAcl) error {
log.Logger(ctx).Debug("LoadCellAclsObjects", zap.Any("acls", roomAcls))
roleClient := idm.NewRoleServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_ROLE, defaults.NewClient())
var roleIds []string
for _, acl := range roomAcls {
roleIds = append(roleIds, acl.RoleId)
}
roleQ, _ := ptypes.MarshalAny(&idm.RoleSingleQuery{Uuid: roleIds})
streamer, err := roleClient.SearchRole(ctx, &idm.SearchRoleRequest{Query: &service2.Query{SubQueries: []*any.Any{roleQ}}})
if err != nil {
return err
}
loadUsers := make(map[string]*idm.Role)
defer streamer.Close()
for {
resp, e := streamer.Recv()
if e != nil {
break
}
if resp == nil {
continue
}
role := resp.Role
if role.UserRole || role.GroupRole {
loadUsers[role.Uuid] = role
} else {
roomAcls[role.Uuid].Role = role
}
}
log.Logger(ctx).Debug("LoadCellAclsObjects, will search for users ?", zap.Any("acls", roomAcls), zap.Any("users", loadUsers))
if len(loadUsers) > 0 {
var subQueries []*any.Any
for roleId, _ := range loadUsers {
userQ, _ := ptypes.MarshalAny(&idm.UserSingleQuery{Uuid: roleId})
subQueries = append(subQueries, userQ)
}
userClient := idm.NewUserServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_USER, defaults.NewClient())
stream, err := userClient.SearchUser(ctx, &idm.SearchUserRequest{Query: &service2.Query{SubQueries: subQueries}})
if err != nil {
return err
}
defer stream.Close()
for {
resp, e := stream.Recv()
if e != nil {
break
}
if resp == nil {
continue
}
object := resp.User
if object.IsGroup {
roomAcls[object.Uuid].Group = object
} else {
// Remove some unnecessary fields
object.Roles = []*idm.Role{}
if _, has := object.Attributes["preferences"]; has {
delete(object.Attributes, "preferences")
}
roomAcls[object.Uuid].User = object.WithPublicData(ctx, h.IsContextEditable(ctx, object.Uuid, object.Policies))
}
}
}
log.Logger(ctx).Debug("LoadCellAclsObjects, updated acls: ", zap.Any("acls", roomAcls))
return nil
}
// CommonAclsForWorkspace makes successive calls to ACL service to get all ACLs for a given workspace.
func (h *SharesHandler) CommonAclsForWorkspace(ctx context.Context, workspaceId string) (result []*idm.ACL, detectedRoots []string, err error) {
result, err = utils.GetACLsForWorkspace(ctx, []string{workspaceId}, utils.ACL_READ, utils.ACL_WRITE, utils.ACL_POLICY)
if err != nil {
return
}
roots := make(map[string]string)
for _, acl := range result {
if acl.NodeID == "" {
continue
}
if _, has := roots[acl.NodeID]; !has {
roots[acl.NodeID] = acl.NodeID
detectedRoots = append(detectedRoots, acl.NodeID)
}
}
return
}
// DiffAcls compares to slices of ACLs on their RoleID and Action and
// returns slices of Acls to add and to remove.
func (h *SharesHandler) DiffAcls(ctx context.Context, initial []*idm.ACL, newOnes []*idm.ACL) (add []*idm.ACL, remove []*idm.ACL) {
equals := func(a *idm.ACL, b *idm.ACL) bool {
return a.NodeID == b.NodeID && a.RoleID == b.RoleID && a.Action.Name == b.Action.Name && a.Action.Value == b.Action.Value
}
diff := func(lefts []*idm.ACL, rights []*idm.ACL) (result []*idm.ACL) {
for _, left := range lefts {
has := false
for _, right := range rights {
if equals(left, right) {
has = true
break
}
}
if !has {
result = append(result, left)
}
}
return
}
remove = diff(initial, newOnes)
add = diff(newOnes, initial)
return
}
// DiffReadRoles detects the roles that have been globally added or removed, whatever the node.
func (h *SharesHandler) DiffReadRoles(ctx context.Context, initial []*idm.ACL, newOnes []*idm.ACL) (add []string, remove []string) {
filter := func(acls []*idm.ACL) (roles map[string]bool) {
roles = make(map[string]bool)
for _, acl := range acls {
if acl.Action.Name == utils.ACL_READ.Name {
roles[acl.RoleID] = true
}
}
return
}
diff := func(lefts map[string]bool, rights map[string]bool) (result []string) {
for left, _ := range lefts {
if _, has := rights[left]; !has {
result = append(result, left)
}
}
return
}
initialRoles := filter(initial)
newRoles := filter(newOnes)
remove = diff(initialRoles, newRoles)
add = diff(newRoles, initialRoles)
return
}
// ComputeTargetAcls create ACL objects that should be applied for this cell.
func (h *SharesHandler) ComputeTargetAcls(ctx context.Context, shareRequest *rest.PutCellRequest, workspaceId string, readonly bool) []*idm.ACL {
claims := ctx.Value(claim.ContextKey).(claim.Claims)
userId, _ := claims.DecodeUserUuid()
var targetAcls []*idm.ACL
for _, node := range shareRequest.Room.RootNodes {
userInAcls := false
for _, acl := range shareRequest.Room.ACLs {
for _, action := range acl.Actions {
// Recheck just in case
if readonly && action.Name == utils.ACL_WRITE.Name {
continue
}
targetAcls = append(targetAcls, &idm.ACL{
NodeID: node.Uuid,
RoleID: acl.RoleId,
WorkspaceID: workspaceId,
Action: action,
})
}
if acl.RoleId == userId {
userInAcls = true
}
}
// Make sure that the current user has at least READ permissions
if !userInAcls {
targetAcls = append(targetAcls, &idm.ACL{
NodeID: node.Uuid,
RoleID: userId,
WorkspaceID: workspaceId,
Action: utils.ACL_READ,
})
if !readonly {
targetAcls = append(targetAcls, &idm.ACL{
NodeID: node.Uuid,
RoleID: userId,
WorkspaceID: workspaceId,
Action: utils.ACL_WRITE,
})
}
}
}
return targetAcls
}
// UpdatePoliciesFromAcls recomputes the required policies from acl changes.
func (h *SharesHandler) UpdatePoliciesFromAcls(ctx context.Context, workspace *idm.Workspace, initial []*idm.ACL, target []*idm.ACL) bool {
var output []*service2.ResourcePolicy
initialPolicies := workspace.Policies
resourceId := workspace.UUID
addReads, removeReads := h.DiffReadRoles(ctx, initial, target)
ignoreAdds := make(map[string]bool)
for _, p := range initialPolicies {
toRemove := false
for _, roleId := range removeReads {
if p.Subject == "role:"+roleId && p.Action == service2.ResourcePolicyAction_READ {
toRemove = true
break
}
}
if p.Action == service2.ResourcePolicyAction_READ && strings.HasPrefix(p.Subject, "role:") {
ignoreAdds[strings.TrimPrefix(p.Subject, "role:")] = true
}
if !toRemove {
output = append(output, p)
}
}
for _, roleAdd := range addReads {
if _, has := ignoreAdds[roleAdd]; has { // Already in the list
continue
}
output = append(output, &service2.ResourcePolicy{
Subject: "role:" + roleAdd,
Resource: resourceId,
Action: service2.ResourcePolicyAction_READ,
Effect: service2.ResourcePolicy_allow,
})
}
workspace.Policies = output
return true
}
// ParseRootNodes reads the request property to either create a new node using the "rooms" Virtual node,
// or just verify that the root nodes are not empty.
func (h *SharesHandler) ParseRootNodes(ctx context.Context, shareRequest *rest.PutCellRequest) (error, *tree.Node, bool) {
var createdNode *tree.Node
router := views.NewStandardRouter(views.RouterOptions{})
for i, n := range shareRequest.Room.RootNodes {
r, e := router.ReadNode(ctx, &tree.ReadNodeRequest{Node: n})
if e != nil {
return e, nil, false
}
// If the virtual root is responded, it may miss the UUID ! Set up manually here
if r.Node.Uuid == "" {
r.Node.Uuid = n.Uuid
}
shareRequest.Room.RootNodes[i] = r.Node
}
if shareRequest.CreateEmptyRoot {
manager := views.GetVirtualNodesManager()
internalRouter := views.NewStandardRouter(views.RouterOptions{WatchRegistry: false, AdminView: true})
if root, exists := manager.ByUuid("cells"); exists {
parentNode, err := manager.ResolveInContext(ctx, root, internalRouter.GetClientsPool(), true)
if err != nil {
return err, nil, false
}
index := 0
labelSlug := slug.Make(shareRequest.Room.Label)
baseSlug := labelSlug
for {
if existingResp, err := internalRouter.ReadNode(ctx, &tree.ReadNodeRequest{Node: &tree.Node{Path: parentNode.Path + "/" + labelSlug}}); err == nil && existingResp.Node != nil {
index++
labelSlug = fmt.Sprintf("%s-%v", baseSlug, index)
} else {
break
}
}
createResp, err := internalRouter.CreateNode(ctx, &tree.CreateNodeRequest{
Node: &tree.Node{Path: parentNode.Path + "/" + labelSlug},
})
if err != nil {
log.Logger(ctx).Error("share/cells : create empty root", zap.Error(err))
return err, nil, false
}
// Update node meta
createResp.Node.SetMeta("CellNode", true)
metaClient := tree.NewNodeReceiverClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_META, defaults.NewClient())
metaClient.CreateNode(ctx, &tree.CreateNodeRequest{Node: createResp.Node})
shareRequest.Room.RootNodes = append(shareRequest.Room.RootNodes, createResp.Node)
createdNode = createResp.Node
} else {
return errors.InternalServerError(common.SERVICE_SHARE, "Wrong configuration, missing rooms virtual node"), nil, false
}
}
if len(shareRequest.Room.RootNodes) == 0 {
return errors.BadRequest(common.SERVICE_SHARE, "Wrong configuration, missing RootNodes in CellRequest"), nil, false
}
// First check of incoming ACLs
var hasReadonly bool
for _, root := range shareRequest.Room.RootNodes {
if root.GetStringMeta(common.META_FLAG_READONLY) != "" {
hasReadonly = true
}
}
if hasReadonly {
for _, a := range shareRequest.Room.GetACLs() {
for _, action := range a.GetActions() {
if action.Name == utils.ACL_WRITE.Name {
return errors.Forbidden(common.SERVICE_SHARE, "One of the resource you are sharing is readonly. You cannot assign write permission on this Cell."), nil, true
}
}
}
}
log.Logger(ctx).Debug("ParseRootNodes", zap.Any("r", shareRequest.Room.RootNodes), zap.Bool("readonly", hasReadonly))
return nil, createdNode, hasReadonly
}
// DeleteRootNodeRecursively loads all children of a root node and delete them, including the
// .pydio hidden files when they are folders.
func (h *SharesHandler) DeleteRootNodeRecursively(ctx context.Context, roomNode *tree.Node) error {
manager := views.GetVirtualNodesManager()
router := views.NewStandardRouter(views.RouterOptions{WatchRegistry: false, AdminView: true})
if root, exists := manager.ByUuid("cells"); exists {
parentNode, err := manager.ResolveInContext(ctx, root, router.GetClientsPool(), true)
if err != nil {
return err
}
realNode := &tree.Node{Path: parentNode.Path + "/" + strings.TrimRight(roomNode.Path, "/")}
// Now list all children and delete them all
stream, err := router.ListNodes(ctx, &tree.ListNodesRequest{Node: realNode, Recursive: true})
if err != nil {
return err
}
defer stream.Close()
for {
resp, e := stream.Recv()
if e != nil {
break
}
if resp == nil {
continue
}
if !resp.Node.IsLeaf() {
resp.Node.Path += "/" + common.PYDIO_SYNC_HIDDEN_FILE_META
}
log.Logger(ctx).Debug("Deleting room node associated to workspace", realNode.Zap())
if _, err := router.DeleteNode(ctx, &tree.DeleteNodeRequest{Node: resp.Node}); err != nil {
log.Logger(ctx).Error("Error while deleting Room Node children", zap.Error(err))
//return err // Continue anyway?
}
}
if _, err := router.DeleteNode(ctx, &tree.DeleteNodeRequest{Node: &tree.Node{Path: realNode.Path + "/" + common.PYDIO_SYNC_HIDDEN_FILE_META}}); err != nil {
return err
}
}
return nil
}
// GetOrCreateWorkspace finds a workspace by its Uuid or creates it with the current user ResourcePolicies
// if it does not already exist.
func (h *SharesHandler) GetOrCreateWorkspace(ctx context.Context, wsUuid string, scope idm.WorkspaceScope, label string, description string, updateIfNeeded bool) (*idm.Workspace, bool, error) {
var workspace *idm.Workspace
log.Logger(ctx).Debug("GetOrCreateWorkspace", zap.String("wsUuid", wsUuid), zap.Any("scope", scope.String()), zap.Bool("updateIfNeeded", updateIfNeeded))
wsClient := idm.NewWorkspaceServiceClient(common.SERVICE_GRPC_NAMESPACE_+common.SERVICE_WORKSPACE, defaults.NewClient())
var create bool
if wsUuid == "" {
if label == "" {
return nil, false, errors.BadRequest(common.SERVICE_SHARE, "please provide a non-empty label for this workspace")
}
// Create Workspace
wsUuid = uuid.NewUUID().String()
wsResp, err := wsClient.CreateWorkspace(ctx, &idm.CreateWorkspaceRequest{Workspace: &idm.Workspace{
UUID: wsUuid,
Label: label,
Description: description,
Scope: scope,
Slug: slug.Make(label),
Policies: h.OwnerResourcePolicies(ctx, wsUuid),
}})
if err != nil {
return workspace, false, err
}
workspace = wsResp.Workspace
create = true
} else {
q, _ := ptypes.MarshalAny(&idm.WorkspaceSingleQuery{
Uuid: wsUuid,
Scope: scope,
})
wsStream, err := wsClient.SearchWorkspace(ctx, &idm.SearchWorkspaceRequest{
Query: &service2.Query{
SubQueries: []*any.Any{q},
},
})
if err != nil {
return workspace, false, err
}
defer wsStream.Close()
for {
wsResp, er := wsStream.Recv()
if er != nil {
break
}
workspace = wsResp.Workspace
}
if workspace == nil {
return workspace, false, errors.NotFound(common.SERVICE_SHARE, "Cannot find workspace with Uuid "+wsUuid)
}