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groups.go
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groups.go
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package svc
import (
"context"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"regexp"
"strconv"
"github.com/cs3org/reva/pkg/user"
merrors "github.com/asim/go-micro/v3/errors"
"github.com/go-chi/chi"
"github.com/go-chi/render"
accounts "github.com/owncloud/ocis/accounts/pkg/proto/v0"
"github.com/owncloud/ocis/ocs/pkg/service/v0/data"
"github.com/owncloud/ocis/ocs/pkg/service/v0/response"
)
// ListUserGroups lists a users groups
func (o Ocs) ListUserGroups(w http.ResponseWriter, r *http.Request) {
userid := chi.URLParam(r, "userid")
var account *accounts.Account
var err error
// short circuit if there is a user already in the context
if u, ok := user.ContextGetUser(r.Context()); ok {
// we are not sure whether the current user in the context is the admin or the authenticated user.
if u.Username == userid {
// the OCS API is a REST API and it uses the username to look for groups. If the id from the user in the context
// differs from that of the url we can assume we are an admin because we are past the selfOrAdmin middleware.
if len(u.Groups) > 0 {
mustNotFail(render.Render(w, r, response.DataRender(&data.Groups{Groups: u.Groups})))
return
}
}
}
if isValidUUID(userid) {
account, err = o.getAccountService().GetAccount(r.Context(), &accounts.GetAccountRequest{
Id: userid,
})
} else {
// despite the confusion, if we make it here we got ourselves a username
account, err = o.fetchAccountByUsername(r.Context(), userid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested user could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("userid", userid).Msg("could not get list of user groups")
return
}
}
groups := make([]string, 0, len(account.MemberOf))
for i := range account.MemberOf {
if account.MemberOf[i].OnPremisesSamAccountName == "" {
o.logger.Warn().Str("groupid", account.MemberOf[i].Id).Msg("group on_premises_sam_account_name is empty, trying to lookup by id")
// we can try to look up the name
group, err := o.getGroupsService().GetGroup(r.Context(), &accounts.GetGroupRequest{
Id: account.MemberOf[i].Id,
})
if err != nil {
o.logger.Error().Err(err).Str("groupid", account.MemberOf[i].Id).Msg("could not get group")
continue
}
if group.OnPremisesSamAccountName == "" {
o.logger.Error().Err(err).Str("groupid", account.MemberOf[i].Id).Msg("group on_premises_sam_account_name is empty")
continue
}
groups = append(groups, group.OnPremisesSamAccountName)
} else {
groups = append(groups, account.MemberOf[i].OnPremisesSamAccountName)
}
}
o.logger.Error().Err(err).Int("count", len(groups)).Str("userid", account.Id).Msg("listing groups for user")
mustNotFail(render.Render(w, r, response.DataRender(&data.Groups{Groups: groups})))
}
// AddToGroup adds a user to a group
func (o Ocs) AddToGroup(w http.ResponseWriter, r *http.Request) {
mustNotFail(r.ParseForm())
userid := chi.URLParam(r, "userid")
groupid := r.PostForm.Get("groupid")
if groupid == "" {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, "empty group assignment: unspecified group")))
return
}
account, err := o.fetchAccountByUsername(r.Context(), userid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested user could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
return
}
// ocs only knows about names so we have to look up the internal id
group, err := o.fetchGroupByName(r.Context(), groupid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
return
}
_, err = o.getGroupsService().AddMember(r.Context(), &accounts.AddMemberRequest{
AccountId: account.Id,
GroupId: group.Id,
})
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("userid", account.Id).Str("groupid", group.Id).Msg("could not add user to group")
return
}
o.logger.Debug().Str("userid", account.Id).Str("groupid", group.Id).Msg("added user to group")
mustNotFail(render.Render(w, r, response.DataRender(struct{}{})))
}
// RemoveFromGroup removes a user from a group
func (o Ocs) RemoveFromGroup(w http.ResponseWriter, r *http.Request) {
userid := chi.URLParam(r, "userid")
var err error
// Really? a DELETE with form encoded body?!?
// but it is not encoded as mime, so we cannot just call r.ParseForm()
// read it manually
body, err := ioutil.ReadAll(r.Body)
if err != nil {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, err.Error())))
return
}
if err = r.Body.Close(); err != nil {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
return
}
values, err := url.ParseQuery(string(body))
if err != nil {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, err.Error())))
return
}
groupid := values.Get("groupid")
if groupid == "" {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, "no group id")))
return
}
var account *accounts.Account
if isValidUUID(userid) {
account, _ = o.getAccountService().GetAccount(r.Context(), &accounts.GetAccountRequest{
Id: userid,
})
} else {
// despite the confusion, if we make it here we got ourselves a username
account, err = o.fetchAccountByUsername(r.Context(), userid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, "The requested user could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("userid", userid).Msg("could not get list of user groups")
return
}
}
// ocs only knows about names so we have to look up the internal id
group, err := o.fetchGroupByName(r.Context(), groupid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
return
}
_, err = o.getGroupsService().RemoveMember(r.Context(), &accounts.RemoveMemberRequest{
AccountId: account.Id,
GroupId: group.Id,
})
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("userid", account.Id).Str("groupid", group.Id).Msg("could not remove user from group")
return
}
o.logger.Debug().Str("userid", account.Id).Str("groupid", group.Id).Msg("removed user from group")
mustNotFail(render.Render(w, r, response.DataRender(struct{}{})))
}
// ListGroups lists all groups
func (o Ocs) ListGroups(w http.ResponseWriter, r *http.Request) {
search := r.URL.Query().Get("search")
query := ""
if search != "" {
query = fmt.Sprintf("id eq '%s' or on_premises_sam_account_name eq '%s'", escapeValue(search), escapeValue(search))
}
res, err := o.getGroupsService().ListGroups(r.Context(), &accounts.ListGroupsRequest{
Query: query,
})
if err != nil {
o.logger.Err(err).Msg("could not list users")
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, "could not list users")))
return
}
groups := make([]string, 0, len(res.Groups))
for i := range res.Groups {
groups = append(groups, res.Groups[i].OnPremisesSamAccountName)
}
mustNotFail(render.Render(w, r, response.DataRender(&data.Groups{Groups: groups})))
}
// AddGroup adds a group
func (o Ocs) AddGroup(w http.ResponseWriter, r *http.Request) {
groupid := r.PostFormValue("groupid")
displayname := r.PostFormValue("displayname")
gid := r.PostFormValue("gidnumber")
var gidNumber int64
var err error
if gid != "" {
gidNumber, err = strconv.ParseInt(gid, 10, 64)
if err != nil {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, "Cannot use the gidnumber provided")))
o.logger.Error().Err(err).Str("gid", gid).Str("groupid", groupid).Msg("Cannot use the gidnumber provided")
return
}
}
if displayname == "" {
displayname = groupid
}
newGroup := &accounts.Group{
Id: groupid,
DisplayName: displayname,
OnPremisesSamAccountName: groupid,
GidNumber: gidNumber,
}
group, err := o.getGroupsService().CreateGroup(r.Context(), &accounts.CreateGroupRequest{
Group: newGroup,
})
if err != nil {
merr := merrors.FromError(err)
switch merr.Code {
case http.StatusBadRequest:
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, merr.Detail)))
case http.StatusConflict:
if response.APIVersion(r.Context()) == "2" {
// it seems the application framework sets the ocs status code to the httpstatus code, which affects the provisioning api
// see https://github.com/owncloud/core/blob/b9ff4c93e051c94adfb301545098ae627e52ef76/lib/public/AppFramework/OCSController.php#L142-L150
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaBadRequest.StatusCode, merr.Detail)))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaInvalidInput.StatusCode, merr.Detail)))
}
default:
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("groupid", groupid).Msg("could not add group")
// TODO check error if group already existed
return
}
o.logger.Debug().Interface("group", group).Msg("added group")
mustNotFail(render.Render(w, r, response.DataRender(struct{}{})))
}
// DeleteGroup deletes a group
func (o Ocs) DeleteGroup(w http.ResponseWriter, r *http.Request) {
groupid := chi.URLParam(r, "groupid")
// ocs only knows about names so we have to look up the internal id
group, err := o.fetchGroupByName(r.Context(), groupid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
return
}
_, err = o.getGroupsService().DeleteGroup(r.Context(), &accounts.DeleteGroupRequest{
Id: group.Id,
})
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("groupid", group.Id).Msg("could not remove group")
return
}
o.logger.Debug().Str("groupid", group.Id).Msg("removed group")
mustNotFail(render.Render(w, r, response.DataRender(struct{}{})))
}
// GetGroupMembers lists all members of a group
func (o Ocs) GetGroupMembers(w http.ResponseWriter, r *http.Request) {
groupid := chi.URLParam(r, "groupid")
// ocs only knows about names so we have to look up the internal id
group, err := o.fetchGroupByName(r.Context(), groupid)
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
return
}
res, err := o.getGroupsService().ListMembers(r.Context(), &accounts.ListMembersRequest{Id: group.Id})
if err != nil {
merr := merrors.FromError(err)
if merr.Code == http.StatusNotFound {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaNotFound.StatusCode, "The requested group could not be found")))
} else {
mustNotFail(render.Render(w, r, response.ErrRender(data.MetaServerError.StatusCode, err.Error())))
}
o.logger.Error().Err(err).Str("groupid", group.Id).Msg("could not get list of members")
return
}
members := make([]string, 0, len(res.Members))
for i := range res.Members {
members = append(members, res.Members[i].OnPremisesSamAccountName)
}
o.logger.Error().Err(err).Int("count", len(members)).Str("groupid", groupid).Msg("listing group members")
mustNotFail(render.Render(w, r, response.DataRender(&data.Users{Users: members})))
}
func isValidUUID(uuid string) bool {
r := regexp.MustCompile("^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-4[a-fA-F0-9]{3}-[8|9|aA|bB][a-fA-F0-9]{3}-[a-fA-F0-9]{12}$")
return r.MatchString(uuid)
}
func (o Ocs) fetchGroupByName(ctx context.Context, name string) (*accounts.Group, error) {
var res *accounts.ListGroupsResponse
res, err := o.getGroupsService().ListGroups(ctx, &accounts.ListGroupsRequest{
Query: fmt.Sprintf("on_premises_sam_account_name eq '%v'", escapeValue(name)),
})
if err != nil {
return nil, err
}
if res != nil && len(res.Groups) == 1 {
return res.Groups[0], nil
}
return nil, merrors.NotFound("", "The requested group could not be found")
}
func mustNotFail(err error) {
if err != nil {
panic(err)
}
}