gotosocial/internal/db/pg/pg.go
Tobi Smethurst aa8a0d0850
Streaming (#49)
Add new status and notification websocket streaming capabilities
2021-06-19 11:18:55 +02:00

1179 lines
36 KiB
Go

/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package pg
import (
"context"
"crypto/rand"
"crypto/rsa"
"errors"
"fmt"
"net"
"net/mail"
"regexp"
"strings"
"time"
"github.com/go-pg/pg/extra/pgdebug"
"github.com/go-pg/pg/v10"
"github.com/go-pg/pg/v10/orm"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/util"
"golang.org/x/crypto/bcrypt"
)
// postgresService satisfies the DB interface
type postgresService struct {
config *config.Config
conn *pg.DB
log *logrus.Logger
cancel context.CancelFunc
// federationDB pub.Database
}
// NewPostgresService returns a postgresService derived from the provided config, which implements the go-fed DB interface.
// Under the hood, it uses https://github.com/go-pg/pg to create and maintain a database connection.
func NewPostgresService(ctx context.Context, c *config.Config, log *logrus.Logger) (db.DB, error) {
opts, err := derivePGOptions(c)
if err != nil {
return nil, fmt.Errorf("could not create postgres service: %s", err)
}
log.Debugf("using pg options: %+v", opts)
// create a connection
pgCtx, cancel := context.WithCancel(ctx)
conn := pg.Connect(opts).WithContext(pgCtx)
// this will break the logfmt format we normally log in,
// since we can't choose where pg outputs to and it defaults to
// stdout. So use this option with care!
if log.GetLevel() >= logrus.TraceLevel {
conn.AddQueryHook(pgdebug.DebugHook{
// Print all queries.
Verbose: true,
})
}
// actually *begin* the connection so that we can tell if the db is there and listening
if err := conn.Ping(ctx); err != nil {
cancel()
return nil, fmt.Errorf("db connection error: %s", err)
}
// print out discovered postgres version
var version string
if _, err = conn.QueryOneContext(ctx, pg.Scan(&version), "SELECT version()"); err != nil {
cancel()
return nil, fmt.Errorf("db connection error: %s", err)
}
log.Infof("connected to postgres version: %s", version)
ps := &postgresService{
config: c,
conn: conn,
log: log,
cancel: cancel,
}
// we can confidently return this useable postgres service now
return ps, nil
}
/*
HANDY STUFF
*/
// derivePGOptions takes an application config and returns either a ready-to-use *pg.Options
// with sensible defaults, or an error if it's not satisfied by the provided config.
func derivePGOptions(c *config.Config) (*pg.Options, error) {
if strings.ToUpper(c.DBConfig.Type) != db.DBTypePostgres {
return nil, fmt.Errorf("expected db type of %s but got %s", db.DBTypePostgres, c.DBConfig.Type)
}
// validate port
if c.DBConfig.Port == 0 {
return nil, errors.New("no port set")
}
// validate address
if c.DBConfig.Address == "" {
return nil, errors.New("no address set")
}
ipv4Regex := regexp.MustCompile(`^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$`)
hostnameRegex := regexp.MustCompile(`^(?:[a-z0-9]+(?:-[a-z0-9]+)*\.)+[a-z]{2,}$`)
if !hostnameRegex.MatchString(c.DBConfig.Address) && !ipv4Regex.MatchString(c.DBConfig.Address) && c.DBConfig.Address != "localhost" {
return nil, fmt.Errorf("address %s was neither an ipv4 address nor a valid hostname", c.DBConfig.Address)
}
// validate username
if c.DBConfig.User == "" {
return nil, errors.New("no user set")
}
// validate that there's a password
if c.DBConfig.Password == "" {
return nil, errors.New("no password set")
}
// validate database
if c.DBConfig.Database == "" {
return nil, errors.New("no database set")
}
// We can rely on the pg library we're using to set
// sensible defaults for everything we don't set here.
options := &pg.Options{
Addr: fmt.Sprintf("%s:%d", c.DBConfig.Address, c.DBConfig.Port),
User: c.DBConfig.User,
Password: c.DBConfig.Password,
Database: c.DBConfig.Database,
ApplicationName: c.ApplicationName,
}
return options, nil
}
/*
BASIC DB FUNCTIONALITY
*/
func (ps *postgresService) CreateTable(i interface{}) error {
return ps.conn.Model(i).CreateTable(&orm.CreateTableOptions{
IfNotExists: true,
})
}
func (ps *postgresService) DropTable(i interface{}) error {
return ps.conn.Model(i).DropTable(&orm.DropTableOptions{
IfExists: true,
})
}
func (ps *postgresService) Stop(ctx context.Context) error {
ps.log.Info("closing db connection")
if err := ps.conn.Close(); err != nil {
// only cancel if there's a problem closing the db
ps.cancel()
return err
}
return nil
}
func (ps *postgresService) IsHealthy(ctx context.Context) error {
return ps.conn.Ping(ctx)
}
func (ps *postgresService) CreateSchema(ctx context.Context) error {
models := []interface{}{
(*gtsmodel.Account)(nil),
(*gtsmodel.Status)(nil),
(*gtsmodel.User)(nil),
}
ps.log.Info("creating db schema")
for _, model := range models {
err := ps.conn.Model(model).CreateTable(&orm.CreateTableOptions{
IfNotExists: true,
})
if err != nil {
return err
}
}
ps.log.Info("db schema created")
return nil
}
func (ps *postgresService) GetByID(id string, i interface{}) error {
if err := ps.conn.Model(i).Where("id = ?", id).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetWhere(where []db.Where, i interface{}) error {
if len(where) == 0 {
return errors.New("no queries provided")
}
q := ps.conn.Model(i)
for _, w := range where {
if w.Value == nil {
q = q.Where("? IS NULL", pg.Ident(w.Key))
} else {
if w.CaseInsensitive {
q = q.Where("LOWER(?) = LOWER(?)", pg.Safe(w.Key), w.Value)
} else {
q = q.Where("? = ?", pg.Safe(w.Key), w.Value)
}
}
}
if err := q.Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetAll(i interface{}) error {
if err := ps.conn.Model(i).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) Put(i interface{}) error {
_, err := ps.conn.Model(i).Insert(i)
if err != nil && strings.Contains(err.Error(), "duplicate key value violates unique constraint") {
return db.ErrAlreadyExists{}
}
return err
}
func (ps *postgresService) Upsert(i interface{}, conflictColumn string) error {
if _, err := ps.conn.Model(i).OnConflict(fmt.Sprintf("(%s) DO UPDATE", conflictColumn)).Insert(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) UpdateByID(id string, i interface{}) error {
if _, err := ps.conn.Model(i).Where("id = ?", id).OnConflict("(id) DO UPDATE").Insert(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) UpdateOneByID(id string, key string, value interface{}, i interface{}) error {
_, err := ps.conn.Model(i).Set("? = ?", pg.Safe(key), value).Where("id = ?", id).Update()
return err
}
func (ps *postgresService) DeleteByID(id string, i interface{}) error {
if _, err := ps.conn.Model(i).Where("id = ?", id).Delete(); err != nil {
// if there are no rows *anyway* then that's fine
// just return err if there's an actual error
if err != pg.ErrNoRows {
return err
}
}
return nil
}
func (ps *postgresService) DeleteWhere(where []db.Where, i interface{}) error {
if len(where) == 0 {
return errors.New("no queries provided")
}
q := ps.conn.Model(i)
for _, w := range where {
q = q.Where("? = ?", pg.Safe(w.Key), w.Value)
}
if _, err := q.Delete(); err != nil {
// if there are no rows *anyway* then that's fine
// just return err if there's an actual error
if err != pg.ErrNoRows {
return err
}
}
return nil
}
/*
HANDY SHORTCUTS
*/
func (ps *postgresService) AcceptFollowRequest(originAccountID string, targetAccountID string) (*gtsmodel.Follow, error) {
// make sure the original follow request exists
fr := &gtsmodel.FollowRequest{}
if err := ps.conn.Model(fr).Where("account_id = ?", originAccountID).Where("target_account_id = ?", targetAccountID).Select(); err != nil {
if err == pg.ErrMultiRows {
return nil, db.ErrNoEntries{}
}
return nil, err
}
// create a new follow to 'replace' the request with
follow := &gtsmodel.Follow{
ID: fr.ID,
AccountID: originAccountID,
TargetAccountID: targetAccountID,
URI: fr.URI,
}
// if the follow already exists, just update the URI -- we don't need to do anything else
if _, err := ps.conn.Model(follow).OnConflict("ON CONSTRAINT follows_account_id_target_account_id_key DO UPDATE set uri = ?", follow.URI).Insert(); err != nil {
return nil, err
}
// now remove the follow request
if _, err := ps.conn.Model(&gtsmodel.FollowRequest{}).Where("account_id = ?", originAccountID).Where("target_account_id = ?", targetAccountID).Delete(); err != nil {
return nil, err
}
return follow, nil
}
func (ps *postgresService) CreateInstanceAccount() error {
username := ps.config.Host
key, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
ps.log.Errorf("error creating new rsa key: %s", err)
return err
}
aID, err := id.NewRandomULID()
if err != nil {
return err
}
newAccountURIs := util.GenerateURIsForAccount(username, ps.config.Protocol, ps.config.Host)
a := &gtsmodel.Account{
ID: aID,
Username: ps.config.Host,
DisplayName: username,
URL: newAccountURIs.UserURL,
PrivateKey: key,
PublicKey: &key.PublicKey,
PublicKeyURI: newAccountURIs.PublicKeyURI,
ActorType: gtsmodel.ActivityStreamsPerson,
URI: newAccountURIs.UserURI,
InboxURI: newAccountURIs.InboxURI,
OutboxURI: newAccountURIs.OutboxURI,
FollowersURI: newAccountURIs.FollowersURI,
FollowingURI: newAccountURIs.FollowingURI,
FeaturedCollectionURI: newAccountURIs.CollectionURI,
}
inserted, err := ps.conn.Model(a).Where("username = ?", username).SelectOrInsert()
if err != nil {
return err
}
if inserted {
ps.log.Infof("created instance account %s with id %s", username, a.ID)
} else {
ps.log.Infof("instance account %s already exists with id %s", username, a.ID)
}
return nil
}
func (ps *postgresService) CreateInstanceInstance() error {
iID, err := id.NewRandomULID()
if err != nil {
return err
}
i := &gtsmodel.Instance{
ID: iID,
Domain: ps.config.Host,
Title: ps.config.Host,
URI: fmt.Sprintf("%s://%s", ps.config.Protocol, ps.config.Host),
}
inserted, err := ps.conn.Model(i).Where("domain = ?", ps.config.Host).SelectOrInsert()
if err != nil {
return err
}
if inserted {
ps.log.Infof("created instance instance %s with id %s", ps.config.Host, i.ID)
} else {
ps.log.Infof("instance instance %s already exists with id %s", ps.config.Host, i.ID)
}
return nil
}
func (ps *postgresService) GetAccountByUserID(userID string, account *gtsmodel.Account) error {
user := &gtsmodel.User{
ID: userID,
}
if err := ps.conn.Model(user).Where("id = ?", userID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
if err := ps.conn.Model(account).Where("id = ?", user.AccountID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetLocalAccountByUsername(username string, account *gtsmodel.Account) error {
if err := ps.conn.Model(account).Where("username = ?", username).Where("? IS NULL", pg.Ident("domain")).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetFollowRequestsForAccountID(accountID string, followRequests *[]gtsmodel.FollowRequest) error {
if err := ps.conn.Model(followRequests).Where("target_account_id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return nil
}
return err
}
return nil
}
func (ps *postgresService) GetFollowingByAccountID(accountID string, following *[]gtsmodel.Follow) error {
if err := ps.conn.Model(following).Where("account_id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return nil
}
return err
}
return nil
}
func (ps *postgresService) GetFollowersByAccountID(accountID string, followers *[]gtsmodel.Follow, localOnly bool) error {
q := ps.conn.Model(followers)
if localOnly {
// for local accounts let's get where domain is null OR where domain is an empty string, just to be safe
whereGroup := func(q *pg.Query) (*pg.Query, error) {
q = q.
WhereOr("? IS NULL", pg.Ident("a.domain")).
WhereOr("a.domain = ?", "")
return q, nil
}
q = q.ColumnExpr("follow.*").
Join("JOIN accounts AS a ON follow.account_id = TEXT(a.id)").
Where("follow.target_account_id = ?", accountID).
WhereGroup(whereGroup)
} else {
q = q.Where("target_account_id = ?", accountID)
}
if err := q.Select(); err != nil {
if err == pg.ErrNoRows {
return nil
}
return err
}
return nil
}
func (ps *postgresService) GetFavesByAccountID(accountID string, faves *[]gtsmodel.StatusFave) error {
if err := ps.conn.Model(faves).Where("account_id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return nil
}
return err
}
return nil
}
func (ps *postgresService) CountStatusesByAccountID(accountID string) (int, error) {
count, err := ps.conn.Model(&gtsmodel.Status{}).Where("account_id = ?", accountID).Count()
if err != nil {
if err == pg.ErrNoRows {
return 0, nil
}
return 0, err
}
return count, nil
}
func (ps *postgresService) GetStatusesByTimeDescending(accountID string, statuses *[]gtsmodel.Status, limit int, excludeReplies bool, maxID string, pinned bool, mediaOnly bool) error {
q := ps.conn.Model(statuses).Order("created_at DESC")
if accountID != "" {
q = q.Where("account_id = ?", accountID)
}
if limit != 0 {
q = q.Limit(limit)
}
if excludeReplies {
q = q.Where("? IS NULL", pg.Ident("in_reply_to_id"))
}
if pinned {
q = q.Where("pinned = ?", true)
}
if mediaOnly {
q = q.WhereGroup(func(q *pg.Query) (*pg.Query, error) {
return q.Where("? IS NOT NULL", pg.Ident("attachments")).Where("attachments != '{}'"), nil
})
}
if maxID != "" {
s := &gtsmodel.Status{}
if err := ps.conn.Model(s).Where("id = ?", maxID).Select(); err != nil {
return err
}
q = q.Where("status.created_at < ?", s.CreatedAt)
}
if err := q.Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetLastStatusForAccountID(accountID string, status *gtsmodel.Status) error {
if err := ps.conn.Model(status).Order("created_at DESC").Limit(1).Where("account_id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) IsUsernameAvailable(username string) error {
// if no error we fail because it means we found something
// if error but it's not pg.ErrNoRows then we fail
// if err is pg.ErrNoRows we're good, we found nothing so continue
if err := ps.conn.Model(&gtsmodel.Account{}).Where("username = ?", username).Where("domain = ?", nil).Select(); err == nil {
return fmt.Errorf("username %s already in use", username)
} else if err != pg.ErrNoRows {
return fmt.Errorf("db error: %s", err)
}
return nil
}
func (ps *postgresService) IsEmailAvailable(email string) error {
// parse the domain from the email
m, err := mail.ParseAddress(email)
if err != nil {
return fmt.Errorf("error parsing email address %s: %s", email, err)
}
domain := strings.Split(m.Address, "@")[1] // domain will always be the second part after @
// check if the email domain is blocked
if err := ps.conn.Model(&gtsmodel.EmailDomainBlock{}).Where("domain = ?", domain).Select(); err == nil {
// fail because we found something
return fmt.Errorf("email domain %s is blocked", domain)
} else if err != pg.ErrNoRows {
// fail because we got an unexpected error
return fmt.Errorf("db error: %s", err)
}
// check if this email is associated with a user already
if err := ps.conn.Model(&gtsmodel.User{}).Where("email = ?", email).WhereOr("unconfirmed_email = ?", email).Select(); err == nil {
// fail because we found something
return fmt.Errorf("email %s already in use", email)
} else if err != pg.ErrNoRows {
// fail because we got an unexpected error
return fmt.Errorf("db error: %s", err)
}
return nil
}
func (ps *postgresService) NewSignup(username string, reason string, requireApproval bool, email string, password string, signUpIP net.IP, locale string, appID string) (*gtsmodel.User, error) {
key, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
ps.log.Errorf("error creating new rsa key: %s", err)
return nil, err
}
newAccountURIs := util.GenerateURIsForAccount(username, ps.config.Protocol, ps.config.Host)
newAccountID, err := id.NewRandomULID()
if err != nil {
return nil, err
}
a := &gtsmodel.Account{
ID: newAccountID,
Username: username,
DisplayName: username,
Reason: reason,
URL: newAccountURIs.UserURL,
PrivateKey: key,
PublicKey: &key.PublicKey,
PublicKeyURI: newAccountURIs.PublicKeyURI,
ActorType: gtsmodel.ActivityStreamsPerson,
URI: newAccountURIs.UserURI,
InboxURI: newAccountURIs.InboxURI,
OutboxURI: newAccountURIs.OutboxURI,
FollowersURI: newAccountURIs.FollowersURI,
FollowingURI: newAccountURIs.FollowingURI,
FeaturedCollectionURI: newAccountURIs.CollectionURI,
}
if _, err = ps.conn.Model(a).Insert(); err != nil {
return nil, err
}
pw, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return nil, fmt.Errorf("error hashing password: %s", err)
}
newUserID, err := id.NewRandomULID()
if err != nil {
return nil, err
}
u := &gtsmodel.User{
ID: newUserID,
AccountID: newAccountID,
EncryptedPassword: string(pw),
SignUpIP: signUpIP,
Locale: locale,
UnconfirmedEmail: email,
CreatedByApplicationID: appID,
Approved: !requireApproval, // if we don't require moderator approval, just pre-approve the user
}
if _, err = ps.conn.Model(u).Insert(); err != nil {
return nil, err
}
return u, nil
}
func (ps *postgresService) SetHeaderOrAvatarForAccountID(mediaAttachment *gtsmodel.MediaAttachment, accountID string) error {
if mediaAttachment.Avatar && mediaAttachment.Header {
return errors.New("one media attachment cannot be both header and avatar")
}
var headerOrAVI string
if mediaAttachment.Avatar {
headerOrAVI = "avatar"
} else if mediaAttachment.Header {
headerOrAVI = "header"
} else {
return errors.New("given media attachment was neither a header nor an avatar")
}
// TODO: there are probably more side effects here that need to be handled
if _, err := ps.conn.Model(mediaAttachment).OnConflict("(id) DO UPDATE").Insert(); err != nil {
return err
}
if _, err := ps.conn.Model(&gtsmodel.Account{}).Set(fmt.Sprintf("%s_media_attachment_id = ?", headerOrAVI), mediaAttachment.ID).Where("id = ?", accountID).Update(); err != nil {
return err
}
return nil
}
func (ps *postgresService) GetHeaderForAccountID(header *gtsmodel.MediaAttachment, accountID string) error {
acct := &gtsmodel.Account{}
if err := ps.conn.Model(acct).Where("id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
if acct.HeaderMediaAttachmentID == "" {
return db.ErrNoEntries{}
}
if err := ps.conn.Model(header).Where("id = ?", acct.HeaderMediaAttachmentID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) GetAvatarForAccountID(avatar *gtsmodel.MediaAttachment, accountID string) error {
acct := &gtsmodel.Account{}
if err := ps.conn.Model(acct).Where("id = ?", accountID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
if acct.AvatarMediaAttachmentID == "" {
return db.ErrNoEntries{}
}
if err := ps.conn.Model(avatar).Where("id = ?", acct.AvatarMediaAttachmentID).Select(); err != nil {
if err == pg.ErrNoRows {
return db.ErrNoEntries{}
}
return err
}
return nil
}
func (ps *postgresService) Blocked(account1 string, account2 string) (bool, error) {
// TODO: check domain blocks as well
var blocked bool
if err := ps.conn.Model(&gtsmodel.Block{}).
Where("account_id = ?", account1).Where("target_account_id = ?", account2).
WhereOr("target_account_id = ?", account1).Where("account_id = ?", account2).
Select(); err != nil {
if err == pg.ErrNoRows {
blocked = false
return blocked, nil
}
return blocked, err
}
blocked = true
return blocked, nil
}
func (ps *postgresService) GetRelationship(requestingAccount string, targetAccount string) (*gtsmodel.Relationship, error) {
r := &gtsmodel.Relationship{
ID: targetAccount,
}
// check if the requesting account follows the target account
follow := &gtsmodel.Follow{}
if err := ps.conn.Model(follow).Where("account_id = ?", requestingAccount).Where("target_account_id = ?", targetAccount).Select(); err != nil {
if err != pg.ErrNoRows {
// a proper error
return nil, fmt.Errorf("getrelationship: error checking follow existence: %s", err)
}
// no follow exists so these are all false
r.Following = false
r.ShowingReblogs = false
r.Notifying = false
} else {
// follow exists so we can fill these fields out...
r.Following = true
r.ShowingReblogs = follow.ShowReblogs
r.Notifying = follow.Notify
}
// check if the target account follows the requesting account
followedBy, err := ps.conn.Model(&gtsmodel.Follow{}).Where("account_id = ?", targetAccount).Where("target_account_id = ?", requestingAccount).Exists()
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking followed_by existence: %s", err)
}
r.FollowedBy = followedBy
// check if the requesting account blocks the target account
blocking, err := ps.conn.Model(&gtsmodel.Block{}).Where("account_id = ?", requestingAccount).Where("target_account_id = ?", targetAccount).Exists()
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocking existence: %s", err)
}
r.Blocking = blocking
// check if the target account blocks the requesting account
blockedBy, err := ps.conn.Model(&gtsmodel.Block{}).Where("account_id = ?", targetAccount).Where("target_account_id = ?", requestingAccount).Exists()
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocked existence: %s", err)
}
r.BlockedBy = blockedBy
// check if there's a pending following request from requesting account to target account
requested, err := ps.conn.Model(&gtsmodel.FollowRequest{}).Where("account_id = ?", requestingAccount).Where("target_account_id = ?", targetAccount).Exists()
if err != nil {
return nil, fmt.Errorf("getrelationship: error checking blocked existence: %s", err)
}
r.Requested = requested
return r, nil
}
func (ps *postgresService) Follows(sourceAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (bool, error) {
if sourceAccount == nil || targetAccount == nil {
return false, nil
}
return ps.conn.Model(&gtsmodel.Follow{}).Where("account_id = ?", sourceAccount.ID).Where("target_account_id = ?", targetAccount.ID).Exists()
}
func (ps *postgresService) FollowRequested(sourceAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (bool, error) {
if sourceAccount == nil || targetAccount == nil {
return false, nil
}
return ps.conn.Model(&gtsmodel.FollowRequest{}).Where("account_id = ?", sourceAccount.ID).Where("target_account_id = ?", targetAccount.ID).Exists()
}
func (ps *postgresService) Mutuals(account1 *gtsmodel.Account, account2 *gtsmodel.Account) (bool, error) {
if account1 == nil || account2 == nil {
return false, nil
}
// make sure account 1 follows account 2
f1, err := ps.conn.Model(&gtsmodel.Follow{}).Where("account_id = ?", account1.ID).Where("target_account_id = ?", account2.ID).Exists()
if err != nil {
if err == pg.ErrNoRows {
return false, nil
}
return false, err
}
// make sure account 2 follows account 1
f2, err := ps.conn.Model(&gtsmodel.Follow{}).Where("account_id = ?", account2.ID).Where("target_account_id = ?", account1.ID).Exists()
if err != nil {
if err == pg.ErrNoRows {
return false, nil
}
return false, err
}
return f1 && f2, nil
}
func (ps *postgresService) GetReplyCountForStatus(status *gtsmodel.Status) (int, error) {
return ps.conn.Model(&gtsmodel.Status{}).Where("in_reply_to_id = ?", status.ID).Count()
}
func (ps *postgresService) GetReblogCountForStatus(status *gtsmodel.Status) (int, error) {
return ps.conn.Model(&gtsmodel.Status{}).Where("boost_of_id = ?", status.ID).Count()
}
func (ps *postgresService) GetFaveCountForStatus(status *gtsmodel.Status) (int, error) {
return ps.conn.Model(&gtsmodel.StatusFave{}).Where("status_id = ?", status.ID).Count()
}
func (ps *postgresService) StatusFavedBy(status *gtsmodel.Status, accountID string) (bool, error) {
return ps.conn.Model(&gtsmodel.StatusFave{}).Where("status_id = ?", status.ID).Where("account_id = ?", accountID).Exists()
}
func (ps *postgresService) StatusRebloggedBy(status *gtsmodel.Status, accountID string) (bool, error) {
return ps.conn.Model(&gtsmodel.Status{}).Where("boost_of_id = ?", status.ID).Where("account_id = ?", accountID).Exists()
}
func (ps *postgresService) StatusMutedBy(status *gtsmodel.Status, accountID string) (bool, error) {
return ps.conn.Model(&gtsmodel.StatusMute{}).Where("status_id = ?", status.ID).Where("account_id = ?", accountID).Exists()
}
func (ps *postgresService) StatusBookmarkedBy(status *gtsmodel.Status, accountID string) (bool, error) {
return ps.conn.Model(&gtsmodel.StatusBookmark{}).Where("status_id = ?", status.ID).Where("account_id = ?", accountID).Exists()
}
func (ps *postgresService) WhoFavedStatus(status *gtsmodel.Status) ([]*gtsmodel.Account, error) {
accounts := []*gtsmodel.Account{}
faves := []*gtsmodel.StatusFave{}
if err := ps.conn.Model(&faves).Where("status_id = ?", status.ID).Select(); err != nil {
if err == pg.ErrNoRows {
return accounts, nil // no rows just means nobody has faved this status, so that's fine
}
return nil, err // an actual error has occurred
}
for _, f := range faves {
acc := &gtsmodel.Account{}
if err := ps.conn.Model(acc).Where("id = ?", f.AccountID).Select(); err != nil {
if err == pg.ErrNoRows {
continue // the account doesn't exist for some reason??? but this isn't the place to worry about that so just skip it
}
return nil, err // an actual error has occurred
}
accounts = append(accounts, acc)
}
return accounts, nil
}
func (ps *postgresService) WhoBoostedStatus(status *gtsmodel.Status) ([]*gtsmodel.Account, error) {
accounts := []*gtsmodel.Account{}
boosts := []*gtsmodel.Status{}
if err := ps.conn.Model(&boosts).Where("boost_of_id = ?", status.ID).Select(); err != nil {
if err == pg.ErrNoRows {
return accounts, nil // no rows just means nobody has boosted this status, so that's fine
}
return nil, err // an actual error has occurred
}
for _, f := range boosts {
acc := &gtsmodel.Account{}
if err := ps.conn.Model(acc).Where("id = ?", f.AccountID).Select(); err != nil {
if err == pg.ErrNoRows {
continue // the account doesn't exist for some reason??? but this isn't the place to worry about that so just skip it
}
return nil, err // an actual error has occurred
}
accounts = append(accounts, acc)
}
return accounts, nil
}
func (ps *postgresService) GetStatusesWhereFollowing(accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error) {
statuses := []*gtsmodel.Status{}
q := ps.conn.Model(&statuses)
q = q.ColumnExpr("status.*").
Join("JOIN follows AS f ON f.target_account_id = status.account_id").
Where("f.account_id = ?", accountID).
Order("status.id DESC")
if maxID != "" {
q = q.Where("status.id < ?", maxID)
}
if sinceID != "" {
q = q.Where("status.id > ?", sinceID)
}
if minID != "" {
q = q.Where("status.id > ?", minID)
}
if local {
q = q.Where("status.local = ?", local)
}
if limit > 0 {
q = q.Limit(limit)
}
err := q.Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, db.ErrNoEntries{}
}
return nil, err
}
if len(statuses) == 0 {
return nil, db.ErrNoEntries{}
}
return statuses, nil
}
func (ps *postgresService) GetPublicTimelineForAccount(accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error) {
statuses := []*gtsmodel.Status{}
q := ps.conn.Model(&statuses).
Where("visibility = ?", gtsmodel.VisibilityPublic).
Where("? IS NULL", pg.Ident("in_reply_to_id")).
Where("? IS NULL", pg.Ident("in_reply_to_uri")).
Where("? IS NULL", pg.Ident("boost_of_id")).
Order("status.id DESC")
if maxID != "" {
q = q.Where("status.id < ?", maxID)
}
if sinceID != "" {
q = q.Where("status.id > ?", sinceID)
}
if minID != "" {
q = q.Where("status.id > ?", minID)
}
if local {
q = q.Where("status.local = ?", local)
}
if limit > 0 {
q = q.Limit(limit)
}
err := q.Select()
if err != nil {
if err == pg.ErrNoRows {
return nil, db.ErrNoEntries{}
}
return nil, err
}
return statuses, nil
}
func (ps *postgresService) GetNotificationsForAccount(accountID string, limit int, maxID string, sinceID string) ([]*gtsmodel.Notification, error) {
notifications := []*gtsmodel.Notification{}
q := ps.conn.Model(&notifications).Where("target_account_id = ?", accountID)
if maxID != "" {
q = q.Where("id < ?", maxID)
}
if sinceID != "" {
q = q.Where("id > ?", sinceID)
}
if limit != 0 {
q = q.Limit(limit)
}
q = q.Order("created_at DESC")
if err := q.Select(); err != nil {
if err != pg.ErrNoRows {
return nil, err
}
}
return notifications, nil
}
/*
CONVERSION FUNCTIONS
*/
// TODO: move these to the type converter, it's bananas that they're here and not there
func (ps *postgresService) MentionStringsToMentions(targetAccounts []string, originAccountID string, statusID string) ([]*gtsmodel.Mention, error) {
ogAccount := &gtsmodel.Account{}
if err := ps.conn.Model(ogAccount).Where("id = ?", originAccountID).Select(); err != nil {
return nil, err
}
menchies := []*gtsmodel.Mention{}
for _, a := range targetAccounts {
// A mentioned account looks like "@test@example.org" or just "@test" for a local account
// -- we can guarantee this from the regex that targetAccounts should have been derived from.
// But we still need to do a bit of fiddling to get what we need here -- the username and domain (if given).
// 1. trim off the first @
t := strings.TrimPrefix(a, "@")
// 2. split the username and domain
s := strings.Split(t, "@")
// 3. if it's length 1 it's a local account, length 2 means remote, anything else means something is wrong
var local bool
switch len(s) {
case 1:
local = true
case 2:
local = false
default:
return nil, fmt.Errorf("mentioned account format '%s' was not valid", a)
}
var username, domain string
username = s[0]
if !local {
domain = s[1]
}
// 4. check we now have a proper username and domain
if username == "" || (!local && domain == "") {
return nil, fmt.Errorf("username or domain for '%s' was nil", a)
}
// okay we're good now, we can start pulling accounts out of the database
mentionedAccount := &gtsmodel.Account{}
var err error
// match username + account, case insensitive
if local {
// local user -- should have a null domain
err = ps.conn.Model(mentionedAccount).Where("LOWER(?) = LOWER(?)", pg.Ident("username"), username).Where("? IS NULL", pg.Ident("domain")).Select()
} else {
// remote user -- should have domain defined
err = ps.conn.Model(mentionedAccount).Where("LOWER(?) = LOWER(?)", pg.Ident("username"), username).Where("LOWER(?) = LOWER(?)", pg.Ident("domain"), domain).Select()
}
if err != nil {
if err == pg.ErrNoRows {
// no result found for this username/domain so just don't include it as a mencho and carry on about our business
ps.log.Debugf("no account found with username '%s' and domain '%s', skipping it", username, domain)
continue
}
// a serious error has happened so bail
return nil, fmt.Errorf("error getting account with username '%s' and domain '%s': %s", username, domain, err)
}
// id, createdAt and updatedAt will be populated by the db, so we have everything we need!
menchies = append(menchies, &gtsmodel.Mention{
StatusID: statusID,
OriginAccountID: ogAccount.ID,
OriginAccountURI: ogAccount.URI,
TargetAccountID: mentionedAccount.ID,
NameString: a,
MentionedAccountURI: mentionedAccount.URI,
MentionedAccountURL: mentionedAccount.URL,
GTSAccount: mentionedAccount,
})
}
return menchies, nil
}
func (ps *postgresService) TagStringsToTags(tags []string, originAccountID string, statusID string) ([]*gtsmodel.Tag, error) {
newTags := []*gtsmodel.Tag{}
for _, t := range tags {
tag := &gtsmodel.Tag{}
// we can use selectorinsert here to create the new tag if it doesn't exist already
// inserted will be true if this is a new tag we just created
if err := ps.conn.Model(tag).Where("LOWER(?) = LOWER(?)", pg.Ident("name"), t).Select(); err != nil {
if err == pg.ErrNoRows {
// tag doesn't exist yet so populate it
newID, err := id.NewRandomULID()
if err != nil {
return nil, err
}
tag.ID = newID
tag.URL = fmt.Sprintf("%s://%s/tags/%s", ps.config.Protocol, ps.config.Host, t)
tag.Name = t
tag.FirstSeenFromAccountID = originAccountID
tag.CreatedAt = time.Now()
tag.UpdatedAt = time.Now()
tag.Useable = true
tag.Listable = true
} else {
return nil, fmt.Errorf("error getting tag with name %s: %s", t, err)
}
}
// bail already if the tag isn't useable
if !tag.Useable {
continue
}
tag.LastStatusAt = time.Now()
newTags = append(newTags, tag)
}
return newTags, nil
}
func (ps *postgresService) EmojiStringsToEmojis(emojis []string, originAccountID string, statusID string) ([]*gtsmodel.Emoji, error) {
newEmojis := []*gtsmodel.Emoji{}
for _, e := range emojis {
emoji := &gtsmodel.Emoji{}
err := ps.conn.Model(emoji).Where("shortcode = ?", e).Where("visible_in_picker = true").Where("disabled = false").Select()
if err != nil {
if err == pg.ErrNoRows {
// no result found for this username/domain so just don't include it as an emoji and carry on about our business
ps.log.Debugf("no emoji found with shortcode %s, skipping it", e)
continue
}
// a serious error has happened so bail
return nil, fmt.Errorf("error getting emoji with shortcode %s: %s", e, err)
}
newEmojis = append(newEmojis, emoji)
}
return newEmojis, nil
}