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tools-hidden-user.go
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/
tools-hidden-user.go
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package share
import (
"context"
"fmt"
"strings"
"go.uber.org/zap"
"github.com/pydio/cells/common/log"
"github.com/golang/protobuf/ptypes"
"github.com/golang/protobuf/ptypes/any"
"github.com/micro/go-micro/errors"
"github.com/pborman/uuid"
"github.com/pydio/cells/common"
"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/proto"
permissions2 "github.com/pydio/cells/common/utils/permissions"
)
// GetOrCreateHiddenUser will load or create a user to create a ShareLink with.
func GetOrCreateHiddenUser(ctx context.Context, ownerUser *idm.User, link *rest.ShareLink, passwordEnabled bool, updatePassword string, passwordHashed bool) (user *idm.User, err error) {
// Create or Load corresponding Hidden User
uClient := idm.NewUserServiceClient(common.ServiceGrpcNamespace_+common.ServiceUser, defaults.NewClient())
roleClient := idm.NewRoleServiceClient(common.ServiceGrpcNamespace_+common.ServiceRole, defaults.NewClient())
if link.UserLogin == "" {
newUuid := uuid.New()
login := strings.Replace(newUuid, "-", "", -1)[0:16]
password := login + PasswordComplexitySuffix
if passwordEnabled {
if len(updatePassword) == 0 {
return nil, errors.BadRequest(common.ServiceShare, "Please provide a non empty password!")
}
password = updatePassword
}
if len(link.Policies) == 0 {
// Apply default policies and make sure user can read himself
link.Policies = OwnerResourcePolicies(ctx, ownerUser, newUuid)
link.Policies = append(link.Policies, &service.ResourcePolicy{
Resource: newUuid,
Subject: fmt.Sprintf("user:%s", login),
Action: service.ResourcePolicyAction_READ,
Effect: service.ResourcePolicy_allow,
})
}
hiddenUser := &idm.User{
Uuid: newUuid,
Login: login,
Password: password,
GroupPath: ownerUser.GroupPath,
Policies: link.Policies,
Attributes: map[string]string{
"profile": "shared",
"hidden": "true",
},
}
if passwordHashed {
hiddenUser.Attributes[idm.UserAttrPassHashed] = "true"
}
resp, e := uClient.CreateUser(ctx, &idm.CreateUserRequest{User: hiddenUser})
if e != nil {
return nil, e
}
user = resp.User
// Create associated role
_, e = roleClient.CreateRole(ctx, &idm.CreateRoleRequest{Role: &idm.Role{
Uuid: user.Uuid,
Label: user.Login,
UserRole: true,
Policies: link.Policies,
}})
if e != nil {
return nil, e
}
} else {
uQ, _ := ptypes.MarshalAny(&idm.UserSingleQuery{Login: link.UserLogin})
stream, e := uClient.SearchUser(ctx, &idm.SearchUserRequest{Query: &service.Query{SubQueries: []*any.Any{uQ}}})
if e != nil {
return nil, e
}
defer stream.Close()
for {
rsp, e := stream.Recv()
if e != nil {
break
}
user = rsp.User
break
}
}
return
}
// UpdateACLsForHiddenUser deletes and replaces access ACLs for a hidden user.
func UpdateACLsForHiddenUser(ctx context.Context, roleId string, workspaceId string, rootNodes []*tree.Node, permissions []rest.ShareLinkAccessType, update bool) error {
HasRead := false
HasWrite := false
for _, perm := range permissions {
if perm == rest.ShareLinkAccessType_Download || perm == rest.ShareLinkAccessType_Preview {
HasRead = true
}
if perm == rest.ShareLinkAccessType_Upload {
HasWrite = true
}
}
aclClient := idm.NewACLServiceClient(common.ServiceGrpcNamespace_+common.ServiceAcl, defaults.NewClient())
if update {
// Delete all existing acls for existing user
q, _ := ptypes.MarshalAny(&idm.ACLSingleQuery{RoleIDs: []string{roleId}})
_, e := aclClient.DeleteACL(ctx, &idm.DeleteACLRequest{Query: &service.Query{SubQueries: []*any.Any{q}}})
if e != nil {
return e
}
}
if !HasRead && !HasWrite {
return nil
}
acls, err := GetTemplateACLsForMinisite(ctx, roleId, permissions, aclClient)
if err != nil {
return err
}
for _, rootNode := range rootNodes {
if HasRead {
acls = append(acls, &idm.ACL{
RoleID: roleId,
WorkspaceID: workspaceId,
NodeID: rootNode.Uuid,
Action: permissions2.AclRead,
})
}
if HasWrite {
acls = append(acls, &idm.ACL{
RoleID: roleId,
WorkspaceID: workspaceId,
NodeID: rootNode.Uuid,
Action: permissions2.AclWrite,
})
}
}
// Add default Repository Id for the role
acls = append(acls, &idm.ACL{
RoleID: roleId,
WorkspaceID: permissions2.FrontWsScopeAll,
Action: &idm.ACLAction{
Name: "parameter:core.conf:DEFAULT_START_REPOSITORY",
Value: workspaceId,
},
})
for _, acl := range acls {
_, e := aclClient.CreateACL(ctx, &idm.CreateACLRequest{ACL: acl})
if e != nil {
return e
}
}
return nil
}
// DeleteHiddenUser removes hidden user associated with this link
func DeleteHiddenUser(ctx context.Context, link *rest.ShareLink) error {
if link.UserLogin == "" {
return nil
}
uClient := idm.NewUserServiceClient(common.ServiceGrpcNamespace_+common.ServiceUser, defaults.NewClient())
q1, _ := ptypes.MarshalAny(&idm.UserSingleQuery{Login: link.UserLogin})
q2, _ := ptypes.MarshalAny(&idm.UserSingleQuery{AttributeName: "hidden", AttributeValue: "true"})
_, e := uClient.DeleteUser(ctx, &idm.DeleteUserRequest{Query: &service.Query{
SubQueries: []*any.Any{q1, q2},
Operation: service.OperationType_AND,
}})
return e
}
// ClearLostHiddenUsers makes sure that hidden users that are not linked to any existing link
// are removed. This is used during a migration to fix the missing users deletion prior to v2.0.0
func ClearLostHiddenUsers(ctx context.Context) error {
log.Logger(ctx).Info("Migration: looking for hidden users unlinked from any public link")
// List hidden users and check for their associated links
uClient := idm.NewUserServiceClient(common.ServiceGrpcNamespace_+common.ServiceUser, defaults.NewClient())
q, _ := ptypes.MarshalAny(&idm.UserSingleQuery{AttributeName: "hidden", AttributeValue: "true"})
stream, e := uClient.SearchUser(ctx, &idm.SearchUserRequest{Query: &service.Query{SubQueries: []*any.Any{q}}})
if e != nil {
return e
}
defer stream.Close()
for {
resp, er := stream.Recv()
if er != nil {
break
}
if doc, er := SearchHashDocumentForUser(ctx, resp.User.Login); er == nil && doc != nil {
log.Logger(ctx).Debug("Found Link for user", resp.User.ZapLogin(), zap.Any("doc", doc))
} else if er == nil && doc == nil {
deleteQ, _ := ptypes.MarshalAny(&idm.UserSingleQuery{Uuid: resp.User.Uuid})
if _, e := uClient.DeleteUser(ctx, &idm.DeleteUserRequest{Query: &service.Query{SubQueries: []*any.Any{deleteQ}}}); e != nil {
log.Logger(ctx).Error("Error while trying to delete lost hidden user", resp.User.ZapLogin(), zap.Error(e))
} else {
log.Logger(ctx).Info("Found and deleted hidden User without any link attached!", resp.User.ZapLogin())
}
} else if er != nil {
log.Logger(ctx).Error("Cannot load docs for user", resp.User.ZapLogin(), zap.Error(er))
}
}
return nil
}