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[chore] Fixes + updates in emoji dereferencing logic (#1022)

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* fix incorrect static remote url use for emojis

* warn when emoji/attachment already exists

* defer emoji postdata execution

* rename ctx to innerCtx for clarity

* warn on emoji too large

* small efficiency fix in fetchRemoteAccountEmojis

* tidy up lock+load

* lock processing emojis

* fix little fucky wucky

* this wasn't go fmted for some reason
This commit is contained in:
tobi 2022-11-11 20:27:37 +01:00 committed by GitHub
parent edcee14d07
commit 6fb47651c8
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 191 additions and 75 deletions
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1
internal/config/helpers.gen.go
View file

@ -1869,4 +1869,3 @@ func GetAdvancedRateLimitRequests() int { return global.GetAdvancedRateLimitRequ
// SetAdvancedRateLimitRequests safely sets the value for global configuration 'AdvancedRateLimitRequests' field
func SetAdvancedRateLimitRequests(v int) { global.SetAdvancedRateLimitRequests(v) }

56
internal/federation/dereferencing/account.go
View file

@ -26,7 +26,6 @@ import (
"io"
"net/url"
"strings"
"sync"
"time"
"github.com/miekg/dns"
@ -478,9 +477,7 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
if alreadyProcessing, ok := d.dereferencingAvatars[targetAccount.ID]; ok {
// we're already on it, no worries
processingMedia = alreadyProcessing
}
if processingMedia == nil {
} else {
// we're not already processing it so start now
avatarIRI, err := url.Parse(targetAccount.AvatarRemoteURL)
if err != nil {
@ -492,6 +489,7 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
var err error
t, err = d.transportController.NewTransportForUsername(ctx, requestingUsername)
if err != nil {
d.dereferencingAvatarsLock.Unlock()
return false, fmt.Errorf("fetchRemoteAccountMedia: error getting transport for user: %s", err)
}
}
@ -516,16 +514,27 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
}
d.dereferencingAvatarsLock.Unlock() // UNLOCK HERE
load := func(innerCtx context.Context) error {
_, err := processingMedia.LoadAttachment(innerCtx)
return err
}
cleanup := func() {
d.dereferencingAvatarsLock.Lock()
delete(d.dereferencingAvatars, targetAccount.ID)
d.dereferencingAvatarsLock.Unlock()
}
// block until loaded if required...
if blocking {
if err := lockAndLoad(ctx, d.dereferencingAvatarsLock, processingMedia, d.dereferencingAvatars, targetAccount.ID); err != nil {
if err := loadAndCleanup(ctx, load, cleanup); err != nil {
return changed, err
}
} else {
// ...otherwise do it async
go func() {
dlCtx, done := context.WithDeadline(context.Background(), time.Now().Add(1*time.Minute))
if err := lockAndLoad(dlCtx, d.dereferencingAvatarsLock, processingMedia, d.dereferencingAvatars, targetAccount.ID); err != nil {
if err := loadAndCleanup(dlCtx, load, cleanup); err != nil {
log.Errorf("fetchRemoteAccountMedia: error during async lock and load of avatar: %s", err)
}
done()
@ -544,9 +553,7 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
if alreadyProcessing, ok := d.dereferencingHeaders[targetAccount.ID]; ok {
// we're already on it, no worries
processingMedia = alreadyProcessing
}
if processingMedia == nil {
} else {
// we're not already processing it so start now
headerIRI, err := url.Parse(targetAccount.HeaderRemoteURL)
if err != nil {
@ -558,6 +565,7 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
var err error
t, err = d.transportController.NewTransportForUsername(ctx, requestingUsername)
if err != nil {
d.dereferencingAvatarsLock.Unlock()
return false, fmt.Errorf("fetchRemoteAccountMedia: error getting transport for user: %s", err)
}
}
@ -582,16 +590,27 @@ func (d *deref) fetchRemoteAccountMedia(ctx context.Context, targetAccount *gtsm
}
d.dereferencingHeadersLock.Unlock() // UNLOCK HERE
load := func(innerCtx context.Context) error {
_, err := processingMedia.LoadAttachment(innerCtx)
return err
}
cleanup := func() {
d.dereferencingHeadersLock.Lock()
delete(d.dereferencingHeaders, targetAccount.ID)
d.dereferencingHeadersLock.Unlock()
}
// block until loaded if required...
if blocking {
if err := lockAndLoad(ctx, d.dereferencingHeadersLock, processingMedia, d.dereferencingHeaders, targetAccount.ID); err != nil {
if err := loadAndCleanup(ctx, load, cleanup); err != nil {
return changed, err
}
} else {
// ...otherwise do it async
go func() {
dlCtx, done := context.WithDeadline(context.Background(), time.Now().Add(1*time.Minute))
if err := lockAndLoad(dlCtx, d.dereferencingHeadersLock, processingMedia, d.dereferencingHeaders, targetAccount.ID); err != nil {
if err := loadAndCleanup(dlCtx, load, cleanup); err != nil {
log.Errorf("fetchRemoteAccountMedia: error during async lock and load of header: %s", err)
}
done()
@ -615,7 +634,7 @@ func (d *deref) fetchRemoteAccountEmojis(ctx context.Context, targetAccount *gts
// If we only have IDs, fetch the emojis from the db. We know they're in
// there or else they wouldn't have IDs.
if len(maybeEmojiIDs) > len(maybeEmojis) {
maybeEmojis = []*gtsmodel.Emoji{}
maybeEmojis = make([]*gtsmodel.Emoji, 0, len(maybeEmojiIDs))
for _, emojiID := range maybeEmojiIDs {
maybeEmoji, err := d.db.GetEmojiByID(ctx, emojiID)
if err != nil {
@ -716,16 +735,3 @@ func (d *deref) fetchRemoteAccountEmojis(ctx context.Context, targetAccount *gts
return changed, nil
}
func lockAndLoad(ctx context.Context, lock *sync.Mutex, processing *media.ProcessingMedia, processingMap map[string]*media.ProcessingMedia, accountID string) error {
// whatever happens, remove the in-process media from the map
defer func() {
lock.Lock()
delete(processingMap, accountID)
lock.Unlock()
}()
// try and load it
_, err := processing.LoadAttachment(ctx)
return err
}

6
internal/federation/dereferencing/dereferencer.go
View file

@ -41,7 +41,7 @@ type Dereferencer interface {
GetRemoteInstance(ctx context.Context, username string, remoteInstanceURI *url.URL) (*gtsmodel.Instance, error)
GetRemoteMedia(ctx context.Context, requestingUsername string, accountID string, remoteURL string, ai *media.AdditionalMediaInfo) (*media.ProcessingMedia, error)
GetRemoteEmoji(ctx context.Context, requestingUsername string, remoteURL string, shortcode string, id string, emojiURI string, ai *media.AdditionalEmojiInfo, refresh bool) (*media.ProcessingEmoji, error)
GetRemoteEmoji(ctx context.Context, requestingUsername string, remoteURL string, shortcode string, domain string, id string, emojiURI string, ai *media.AdditionalEmojiInfo, refresh bool) (*media.ProcessingEmoji, error)
DereferenceAnnounce(ctx context.Context, announce *gtsmodel.Status, requestingUsername string) error
DereferenceThread(ctx context.Context, username string, statusIRI *url.URL, status *gtsmodel.Status, statusable ap.Statusable)
@ -58,6 +58,8 @@ type deref struct {
dereferencingAvatarsLock *sync.Mutex
dereferencingHeaders map[string]*media.ProcessingMedia
dereferencingHeadersLock *sync.Mutex
dereferencingEmojis map[string]*media.ProcessingEmoji
dereferencingEmojisLock *sync.Mutex
handshakes map[string][]*url.URL
handshakeSync *sync.Mutex // mutex to lock/unlock when checking or updating the handshakes map
}
@ -73,6 +75,8 @@ func NewDereferencer(db db.DB, typeConverter typeutils.TypeConverter, transportC
dereferencingAvatarsLock: &sync.Mutex{},
dereferencingHeaders: make(map[string]*media.ProcessingMedia),
dereferencingHeadersLock: &sync.Mutex{},
dereferencingEmojis: make(map[string]*media.ProcessingEmoji),
dereferencingEmojisLock: &sync.Mutex{},
handshakeSync: &sync.Mutex{},
}
}

122
internal/federation/dereferencing/emoji.go
View file

@ -31,27 +31,65 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/media"
)
func (d *deref) GetRemoteEmoji(ctx context.Context, requestingUsername string, remoteURL string, shortcode string, id string, emojiURI string, ai *media.AdditionalEmojiInfo, refresh bool) (*media.ProcessingEmoji, error) {
t, err := d.transportController.NewTransportForUsername(ctx, requestingUsername)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error creating transport: %s", err)
func (d *deref) GetRemoteEmoji(ctx context.Context, requestingUsername string, remoteURL string, shortcode string, domain string, id string, emojiURI string, ai *media.AdditionalEmojiInfo, refresh bool) (*media.ProcessingEmoji, error) {
var (
shortcodeDomain = shortcode + "@" + domain
processingEmoji *media.ProcessingEmoji
)
d.dereferencingEmojisLock.Lock() // LOCK HERE
// first check if we're already processing this emoji
if alreadyProcessing, ok := d.dereferencingEmojis[shortcodeDomain]; ok {
// we're already on it, no worries
processingEmoji = alreadyProcessing
} else {
// not processing it yet, let's start
t, err := d.transportController.NewTransportForUsername(ctx, requestingUsername)
if err != nil {
d.dereferencingEmojisLock.Unlock()
return nil, fmt.Errorf("GetRemoteEmoji: error creating transport to fetch emoji %s: %s", shortcodeDomain, err)
}
derefURI, err := url.Parse(remoteURL)
if err != nil {
d.dereferencingEmojisLock.Unlock()
return nil, fmt.Errorf("GetRemoteEmoji: error parsing url for emoji %s: %s", shortcodeDomain, err)
}
dataFunc := func(innerCtx context.Context) (io.ReadCloser, int64, error) {
return t.DereferenceMedia(innerCtx, derefURI)
}
newProcessing, err := d.mediaManager.ProcessEmoji(ctx, dataFunc, nil, shortcode, id, emojiURI, ai, refresh)
if err != nil {
d.dereferencingEmojisLock.Unlock()
return nil, fmt.Errorf("GetRemoteEmoji: error processing emoji %s: %s", shortcodeDomain, err)
}
// store it in our map to indicate it's in process
d.dereferencingEmojis[shortcodeDomain] = newProcessing
processingEmoji = newProcessing
}
derefURI, err := url.Parse(remoteURL)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error parsing url: %s", err)
d.dereferencingEmojisLock.Unlock()
load := func(innerCtx context.Context) error {
_, err := processingEmoji.LoadEmoji(innerCtx)
return err
}
dataFunc := func(innerCtx context.Context) (io.ReadCloser, int64, error) {
return t.DereferenceMedia(innerCtx, derefURI)
cleanup := func() {
d.dereferencingEmojisLock.Lock()
delete(d.dereferencingHeaders, shortcodeDomain)
d.dereferencingEmojisLock.Unlock()
}
processingMedia, err := d.mediaManager.ProcessEmoji(ctx, dataFunc, nil, shortcode, id, emojiURI, ai, refresh)
if err != nil {
return nil, fmt.Errorf("GetRemoteEmoji: error processing emoji: %s", err)
if err := loadAndCleanup(ctx, load, cleanup); err != nil {
return nil, err
}
return processingMedia, nil
return processingEmoji, nil
}
func (d *deref) populateEmojis(ctx context.Context, rawEmojis []*gtsmodel.Emoji, requestingUsername string) ([]*gtsmodel.Emoji, error) {
@ -67,32 +105,58 @@ func (d *deref) populateEmojis(ctx context.Context, rawEmojis []*gtsmodel.Emoji,
for _, e := range rawEmojis {
var gotEmoji *gtsmodel.Emoji
var err error
shortcodeDomain := e.Shortcode + "@" + e.Domain
// check if we've already got this emoji in the db
if gotEmoji, err = d.db.GetEmojiByShortcodeDomain(ctx, e.Shortcode, e.Domain); err != nil && err != db.ErrNoEntries {
log.Errorf("populateEmojis: error checking database for emoji %s: %s", e.URI, err)
// check if we already know this emoji
if e.ID != "" {
// we had an ID for this emoji already, which means
// it should be fleshed out already and we won't
// have to get it from the database again
gotEmoji = e
} else if gotEmoji, err = d.db.GetEmojiByShortcodeDomain(ctx, e.Shortcode, e.Domain); err != nil && err != db.ErrNoEntries {
log.Errorf("populateEmojis: error checking database for emoji %s: %s", shortcodeDomain, err)
continue
}
var refresh bool
if gotEmoji != nil {
// we had the emoji in our database already; make sure the one we have is up to date
if (e.UpdatedAt.After(gotEmoji.ImageUpdatedAt)) || (e.URI != gotEmoji.URI) || (e.ImageRemoteURL != gotEmoji.ImageRemoteURL) {
// we had the emoji already, but refresh it if necessary
if e.UpdatedAt.Unix() > gotEmoji.ImageUpdatedAt.Unix() {
log.Tracef("populateEmojis: emoji %s was updated since we last saw it, will refresh", shortcodeDomain)
refresh = true
}
if !refresh && (e.URI != gotEmoji.URI) {
log.Tracef("populateEmojis: emoji %s changed URI since we last saw it, will refresh", shortcodeDomain)
refresh = true
}
if !refresh && (e.ImageRemoteURL != gotEmoji.ImageRemoteURL) {
log.Tracef("populateEmojis: emoji %s changed image URL since we last saw it, will refresh", shortcodeDomain)
refresh = true
}
if !refresh {
log.Tracef("populateEmojis: emoji %s is up to date, will not refresh", shortcodeDomain)
} else {
log.Tracef("populateEmojis: refreshing emoji %s", shortcodeDomain)
emojiID := gotEmoji.ID // use existing ID
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, emojiID, e.URI, &media.AdditionalEmojiInfo{
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, e.Domain, emojiID, e.URI, &media.AdditionalEmojiInfo{
Domain: &e.Domain,
ImageRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageStaticRemoteURL,
Disabled: gotEmoji.Disabled,
VisibleInPicker: gotEmoji.VisibleInPicker,
}, true)
}, refresh)
if err != nil {
log.Errorf("populateEmojis: couldn't refresh remote emoji %s: %s", e.URI, err)
log.Errorf("populateEmojis: couldn't refresh remote emoji %s: %s", shortcodeDomain, err)
continue
}
if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
log.Errorf("populateEmojis: couldn't load refreshed remote emoji %s: %s", e.URI, err)
log.Errorf("populateEmojis: couldn't load refreshed remote emoji %s: %s", shortcodeDomain, err)
continue
}
}
@ -100,25 +164,25 @@ func (d *deref) populateEmojis(ctx context.Context, rawEmojis []*gtsmodel.Emoji,
// it's new! go get it!
newEmojiID, err := id.NewRandomULID()
if err != nil {
log.Errorf("populateEmojis: error generating id for remote emoji %s: %s", e.URI, err)
log.Errorf("populateEmojis: error generating id for remote emoji %s: %s", shortcodeDomain, err)
continue
}
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, newEmojiID, e.URI, &media.AdditionalEmojiInfo{
processingEmoji, err := d.GetRemoteEmoji(ctx, requestingUsername, e.ImageRemoteURL, e.Shortcode, e.Domain, newEmojiID, e.URI, &media.AdditionalEmojiInfo{
Domain: &e.Domain,
ImageRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageRemoteURL,
ImageStaticRemoteURL: &e.ImageStaticRemoteURL,
Disabled: e.Disabled,
VisibleInPicker: e.VisibleInPicker,
}, false)
}, refresh)
if err != nil {
log.Errorf("populateEmojis: couldn't get remote emoji %s: %s", e.URI, err)
log.Errorf("populateEmojis: couldn't get remote emoji %s: %s", shortcodeDomain, err)
continue
}
if gotEmoji, err = processingEmoji.LoadEmoji(ctx); err != nil {
log.Errorf("populateEmojis: couldn't load remote emoji %s: %s", e.URI, err)
log.Errorf("populateEmojis: couldn't load remote emoji %s: %s", shortcodeDomain, err)
continue
}
}

2
internal/federation/dereferencing/emoji_test.go
View file

@ -51,7 +51,7 @@ func (suite *EmojiTestSuite) TestDereferenceEmojiBlocking() {
VisibleInPicker: &emojiVisibleInPicker,
}
processingEmoji, err := suite.dereferencer.GetRemoteEmoji(ctx, fetchingAccount.Username, emojiImageRemoteURL, emojiShortcode, emojiID, emojiURI, ai, false)
processingEmoji, err := suite.dereferencer.GetRemoteEmoji(ctx, fetchingAccount.Username, emojiImageRemoteURL, emojiShortcode, emojiDomain, emojiID, emojiURI, ai, false)
suite.NoError(err)
// make a blocking call to load the emoji from the in-process media

31
internal/federation/dereferencing/util.go Normal file
View file

@ -0,0 +1,31 @@
/*
GoToSocial
Copyright (C) 2021-2022 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 dereferencing
import (
"context"
)
func loadAndCleanup(ctx context.Context, load func(ctx context.Context) error, cleanup func()) error {
// whatever happens, clean up when we're done
defer cleanup()
// try and load
return load(ctx)
}

40
internal/media/processingemoji.go
View file

@ -206,6 +206,15 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
}
}()
// execute the postData function no matter what happens
defer func() {
if p.postData != nil {
if err := p.postData(ctx); err != nil {
log.Errorf("store: error executing postData: %s", err)
}
}
}()
// extract no more than 261 bytes from the beginning of the file -- this is the header
firstBytes := make([]byte, maxFileHeaderBytes)
if _, err := rc.Read(firstBytes); err != nil {
@ -259,27 +268,26 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
}
// store this for now -- other processes can pull it out of storage as they please
if fileSize, err = putStream(ctx, p.storage, p.emoji.ImagePath, readerToStore, fileSize); err != nil && err != storage.ErrAlreadyExists {
return fmt.Errorf("store: error storing stream: %s", err)
if fileSize, err = putStream(ctx, p.storage, p.emoji.ImagePath, readerToStore, fileSize); err != nil {
if !errors.Is(err, storage.ErrAlreadyExists) {
return fmt.Errorf("store: error storing stream: %s", err)
}
log.Warnf("emoji %s already exists at storage path: %s", p.emoji.ID, p.emoji.ImagePath)
}
// if we didn't know the fileSize yet, we do now, so check if we need to
if !checkedSize && fileSize > maxEmojiSize {
defer func() {
if err := p.storage.Delete(ctx, p.emoji.ImagePath); err != nil {
log.Errorf("store: error removing too-large emoji from the store: %s", err)
}
}()
return fmt.Errorf("store: discovered emoji fileSize (%db) is larger than allowed emojiRemoteMaxSize (%db)", fileSize, maxEmojiSize)
err = fmt.Errorf("store: discovered emoji fileSize (%db) is larger than allowed emojiRemoteMaxSize (%db), will delete from the store now", fileSize, maxEmojiSize)
log.Warn(err)
if deleteErr := p.storage.Delete(ctx, p.emoji.ImagePath); deleteErr != nil {
log.Errorf("store: error removing too-large emoji from the store: %s", deleteErr)
}
return err
}
p.emoji.ImageFileSize = int(fileSize)
p.read = true
if p.postData != nil {
return p.postData(ctx)
}
return nil
}
@ -303,20 +311,20 @@ func (m *manager) preProcessEmoji(ctx context.Context, data DataFunc, postData P
originalPostData := postData
originalImagePath := emoji.ImagePath
originalImageStaticPath := emoji.ImageStaticPath
postData = func(ctx context.Context) error {
postData = func(innerCtx context.Context) error {
// trigger the original postData function if it was provided
if originalPostData != nil {
if err := originalPostData(ctx); err != nil {
if err := originalPostData(innerCtx); err != nil {
return err
}
}
l := log.WithField("shortcode@domain", emoji.Shortcode+"@"+emoji.Domain)
l.Debug("postData: cleaning up old emoji files for refreshed emoji")
if err := m.storage.Delete(ctx, originalImagePath); err != nil && !errors.Is(err, gostore.ErrNotFound) {
if err := m.storage.Delete(innerCtx, originalImagePath); err != nil && !errors.Is(err, gostore.ErrNotFound) {
l.Errorf("postData: error cleaning up old emoji image at %s for refreshed emoji: %s", originalImagePath, err)
}
if err := m.storage.Delete(ctx, originalImageStaticPath); err != nil && !errors.Is(err, gostore.ErrNotFound) {
if err := m.storage.Delete(innerCtx, originalImageStaticPath); err != nil && !errors.Is(err, gostore.ErrNotFound) {
l.Errorf("postData: error cleaning up old emoji static image at %s for refreshed emoji: %s", originalImageStaticPath, err)
}

8
internal/media/processingmedia.go
View file

@ -21,6 +21,7 @@ package media
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"strings"
@ -349,8 +350,11 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
p.attachment.File.Path = fmt.Sprintf("%s/%s/%s/%s.%s", p.attachment.AccountID, TypeAttachment, SizeOriginal, p.attachment.ID, extension)
// store this for now -- other processes can pull it out of storage as they please
if fileSize, err = putStream(ctx, p.storage, p.attachment.File.Path, readerToStore, fileSize); err != nil && err != storage.ErrAlreadyExists {
return fmt.Errorf("store: error storing stream: %s", err)
if fileSize, err = putStream(ctx, p.storage, p.attachment.File.Path, readerToStore, fileSize); err != nil {
if !errors.Is(err, storage.ErrAlreadyExists) {
return fmt.Errorf("store: error storing stream: %s", err)
}
log.Warnf("attachment %s already exists at storage path: %s", p.attachment.ID, p.attachment.File.Path)
}
cached := true