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core_user.go
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core_user.go
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// Copyright 2018 The Nakama Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"context"
"database/sql"
"strconv"
"strings"
"github.com/gofrs/uuid"
"github.com/golang/protobuf/ptypes/timestamp"
"github.com/heroiclabs/nakama/api"
"github.com/lib/pq"
"go.uber.org/zap"
)
func GetUsers(ctx context.Context, logger *zap.Logger, db *sql.DB, tracker Tracker, ids, usernames, fbIDs []string) (*api.Users, error) {
query := `
SELECT id, username, display_name, avatar_url, lang_tag, location, timezone, metadata,
facebook_id, google_id, gamecenter_id, steam_id, edge_count, create_time, update_time
FROM users
WHERE`
idStatements := make([]string, 0, len(ids))
usernameStatements := make([]string, 0, len(usernames))
facebookStatements := make([]string, 0, len(fbIDs))
params := make([]interface{}, 0)
counter := 1
useSqlOr := false
if len(ids) > 0 {
for _, id := range ids {
params = append(params, id)
statement := "$" + strconv.Itoa(counter)
idStatements = append(idStatements, statement)
counter++
}
query = query + " id IN (" + strings.Join(idStatements, ", ") + ")"
useSqlOr = true
}
if len(usernames) > 0 {
for _, username := range usernames {
params = append(params, username)
statement := "$" + strconv.Itoa(counter)
usernameStatements = append(usernameStatements, statement)
counter++
}
if useSqlOr {
query = query + " OR"
}
query = query + " username IN (" + strings.Join(usernameStatements, ", ") + ")"
useSqlOr = true
}
if len(fbIDs) > 0 {
for _, id := range fbIDs {
params = append(params, id)
statement := "$" + strconv.Itoa(counter)
facebookStatements = append(facebookStatements, statement)
counter++
}
if useSqlOr {
query = query + " OR"
}
query = query + " facebook_id IN (" + strings.Join(facebookStatements, ", ") + ")"
}
rows, err := db.QueryContext(ctx, query, params...)
if err != nil {
logger.Error("Error retrieving user accounts.", zap.Error(err), zap.Strings("user_ids", ids), zap.Strings("usernames", usernames), zap.Strings("facebook_ids", fbIDs))
return nil, err
}
defer rows.Close()
users := &api.Users{Users: make([]*api.User, 0)}
for rows.Next() {
user, err := convertUser(tracker, rows)
if err != nil {
logger.Error("Error retrieving user accounts.", zap.Error(err), zap.Strings("user_ids", ids), zap.Strings("usernames", usernames), zap.Strings("facebook_ids", fbIDs))
return nil, err
}
users.Users = append(users.Users, user)
}
if err = rows.Err(); err != nil {
logger.Error("Error retrieving user accounts.", zap.Error(err), zap.Strings("user_ids", ids), zap.Strings("usernames", usernames), zap.Strings("facebook_ids", fbIDs))
return nil, err
}
return users, nil
}
func DeleteUser(ctx context.Context, tx *sql.Tx, userID uuid.UUID) (int64, error) {
res, err := tx.ExecContext(ctx, "DELETE FROM users WHERE id = $1", userID)
if err != nil {
return 0, err
}
return res.RowsAffected()
}
func BanUsers(ctx context.Context, logger *zap.Logger, db *sql.DB, ids []string) error {
statements := make([]string, 0, len(ids))
params := make([]interface{}, 0, len(ids))
for i, id := range ids {
statements = append(statements, "$"+strconv.Itoa(i+1))
params = append(params, id)
}
query := "UPDATE users SET disable_time = now() WHERE id IN (" + strings.Join(statements, ", ") + ")"
_, err := db.ExecContext(ctx, query, params...)
if err != nil {
logger.Error("Error banning user accounts.", zap.Error(err), zap.Strings("ids", ids))
return err
}
return nil
}
func UnbanUsers(ctx context.Context, logger *zap.Logger, db *sql.DB, ids []string) error {
statements := make([]string, 0, len(ids))
params := make([]interface{}, 0, len(ids))
for i, id := range ids {
statements = append(statements, "$"+strconv.Itoa(i+1))
params = append(params, id)
}
query := "UPDATE users SET disable_time = '1970-01-01 00:00:00' WHERE id IN (" + strings.Join(statements, ", ") + ")"
_, err := db.ExecContext(ctx, query, params...)
if err != nil {
logger.Error("Error unbanning user accounts.", zap.Error(err), zap.Strings("ids", ids))
return err
}
return nil
}
func UserExistsAndDoesNotBlock(ctx context.Context, db *sql.DB, checkUserID, blocksUserID uuid.UUID) (bool, error) {
var count int
err := db.QueryRowContext(ctx, `
SELECT COUNT(id) FROM users
WHERE id = $1::UUID AND NOT EXISTS (
SELECT state FROM user_edge
WHERE source_id = $1::UUID AND destination_id = $2::UUID AND state = 3
)
`, checkUserID, blocksUserID).Scan(&count)
return count != 0, err
}
func convertUser(tracker Tracker, rows *sql.Rows) (*api.User, error) {
var id string
var displayName sql.NullString
var username sql.NullString
var avatarURL sql.NullString
var langTag sql.NullString
var location sql.NullString
var timezone sql.NullString
var metadata []byte
var facebook sql.NullString
var google sql.NullString
var gamecenter sql.NullString
var steam sql.NullString
var edge_count int
var createTime pq.NullTime
var updateTime pq.NullTime
err := rows.Scan(&id, &username, &displayName, &avatarURL, &langTag, &location, &timezone, &metadata,
&facebook, &google, &gamecenter, &steam, &edge_count, &createTime, &updateTime)
if err != nil {
return nil, err
}
userID := uuid.FromStringOrNil(id)
return &api.User{
Id: userID.String(),
Username: username.String,
DisplayName: displayName.String,
AvatarUrl: avatarURL.String,
LangTag: langTag.String,
Location: location.String,
Timezone: timezone.String,
Metadata: string(metadata),
FacebookId: facebook.String,
GoogleId: google.String,
GamecenterId: gamecenter.String,
SteamId: steam.String,
EdgeCount: int32(edge_count),
CreateTime: ×tamp.Timestamp{Seconds: createTime.Time.Unix()},
UpdateTime: ×tamp.Timestamp{Seconds: updateTime.Time.Unix()},
Online: tracker.StreamExists(PresenceStream{Mode: StreamModeNotifications, Subject: userID}),
}, nil
}
func fetchUserID(ctx context.Context, db *sql.DB, usernames []string) ([]string, error) {
ids := make([]string, 0)
if len(usernames) == 0 {
return ids, nil
}
statements := make([]string, 0, len(usernames))
params := make([]interface{}, 0, len(usernames))
counter := 1
for _, username := range usernames {
params = append(params, username)
statement := "$" + strconv.Itoa(counter)
statements = append(statements, statement)
counter++
}
query := "SELECT id FROM users WHERE username IN (" + strings.Join(statements, ", ") + ")"
rows, err := db.QueryContext(ctx, query, params...)
if err != nil {
if err == sql.ErrNoRows {
return ids, nil
}
return nil, err
}
defer rows.Close()
for rows.Next() {
var id string
err := rows.Scan(&id)
if err != nil {
return nil, err
}
ids = append(ids, id)
}
if err = rows.Err(); err != nil {
return nil, err
}
return ids, nil
}