gotosocial/internal/media/processingmedia.go

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/*
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/>.
*/
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package media
import (
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"bytes"
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"context"
"errors"
"fmt"
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"io"
"strings"
"sync"
"sync/atomic"
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"time"
terminator "github.com/superseriousbusiness/exif-terminator"
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"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
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// ProcessingMedia represents a piece of media that is currently being processed. It exposes
// various functions for retrieving data from the process.
type ProcessingMedia struct {
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mu sync.Mutex
/*
below fields should be set on newly created media;
attachment will be updated incrementally as media goes through processing
*/
attachment *gtsmodel.MediaAttachment
data DataFunc
postData PostDataCallbackFunc
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read bool // bool indicating that data function has been triggered already
thumbState int32 // the processing state of the media thumbnail
fullSizeState int32 // the processing state of the full-sized media
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/*
below pointers to database and storage are maintained so that
the media can store and update itself during processing steps
*/
database db.DB
storage *storage.Driver
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err error // error created during processing, if any
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// track whether this media has already been put in the databse
insertedInDB bool
// true if this is a recache, false if it's brand new media
recache bool
}
// AttachmentID returns the ID of the underlying media attachment without blocking processing.
func (p *ProcessingMedia) AttachmentID() string {
return p.attachment.ID
}
// LoadAttachment blocks until the thumbnail and fullsize content
// has been processed, and then returns the completed attachment.
func (p *ProcessingMedia) LoadAttachment(ctx context.Context) (*gtsmodel.MediaAttachment, error) {
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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log.Tracef("LoadAttachment: getting lock for attachment %s", p.attachment.URL)
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p.mu.Lock()
defer p.mu.Unlock()
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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log.Tracef("LoadAttachment: got lock for attachment %s", p.attachment.URL)
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if err := p.store(ctx); err != nil {
return nil, err
}
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if err := p.loadThumb(ctx); err != nil {
return nil, err
}
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if err := p.loadFullSize(ctx); err != nil {
return nil, err
}
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// store the result in the database before returning it
if !p.insertedInDB {
if p.recache {
// if it's a recache we should only need to update
if err := p.database.UpdateByID(ctx, p.attachment, p.attachment.ID); err != nil {
return nil, err
}
} else {
// otherwise we need to really PUT it
if err := p.database.Put(ctx, p.attachment); err != nil {
return nil, err
}
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}
p.insertedInDB = true
}
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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log.Tracef("LoadAttachment: finished, returning attachment %s", p.attachment.URL)
return p.attachment, nil
}
// Finished returns true if processing has finished for both the thumbnail
// and full fized version of this piece of media.
func (p *ProcessingMedia) Finished() bool {
return atomic.LoadInt32(&p.thumbState) == int32(complete) && atomic.LoadInt32(&p.fullSizeState) == int32(complete)
}
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func (p *ProcessingMedia) loadThumb(ctx context.Context) error {
thumbState := atomic.LoadInt32(&p.thumbState)
switch processState(thumbState) {
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case received:
// we haven't processed a thumbnail for this media yet so do it now
// check if we need to create a blurhash or if there's already one set
var createBlurhash bool
if p.attachment.Blurhash == "" {
// no blurhash created yet
createBlurhash = true
}
// stream the original file out of storage
stored, err := p.storage.GetStream(ctx, p.attachment.File.Path)
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if err != nil {
p.err = fmt.Errorf("loadThumb: error fetching file from storage: %s", err)
atomic.StoreInt32(&p.thumbState, int32(errored))
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return p.err
}
defer stored.Close()
// stream the file from storage straight into the derive thumbnail function
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thumb, err := deriveThumbnail(stored, p.attachment.File.ContentType, createBlurhash)
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if err != nil {
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p.err = fmt.Errorf("loadThumb: error deriving thumbnail: %s", err)
atomic.StoreInt32(&p.thumbState, int32(errored))
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return p.err
}
// Close stored media now we're done
if err := stored.Close(); err != nil {
log.Errorf("loadThumb: error closing stored full size: %s", err)
}
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// put the thumbnail in storage
if err := p.storage.Put(ctx, p.attachment.Thumbnail.Path, thumb.small); err != nil && err != storage.ErrAlreadyExists {
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p.err = fmt.Errorf("loadThumb: error storing thumbnail: %s", err)
atomic.StoreInt32(&p.thumbState, int32(errored))
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return p.err
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}
// set appropriate fields on the attachment based on the thumbnail we derived
if createBlurhash {
p.attachment.Blurhash = thumb.blurhash
}
p.attachment.FileMeta.Small = gtsmodel.Small{
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Width: thumb.width,
Height: thumb.height,
Size: thumb.size,
Aspect: thumb.aspect,
}
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p.attachment.Thumbnail.FileSize = len(thumb.small)
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// we're done processing the thumbnail!
atomic.StoreInt32(&p.thumbState, int32(complete))
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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log.Tracef("loadThumb: finished processing thumbnail for attachment %s", p.attachment.URL)
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fallthrough
case complete:
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return nil
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case errored:
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return p.err
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}
return fmt.Errorf("loadThumb: thumbnail processing status %d unknown", p.thumbState)
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}
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func (p *ProcessingMedia) loadFullSize(ctx context.Context) error {
fullSizeState := atomic.LoadInt32(&p.fullSizeState)
switch processState(fullSizeState) {
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case received:
var err error
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var decoded *imageMeta
// stream the original file out of storage...
stored, err := p.storage.GetStream(ctx, p.attachment.File.Path)
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if err != nil {
p.err = fmt.Errorf("loadFullSize: error fetching file from storage: %s", err)
atomic.StoreInt32(&p.fullSizeState, int32(errored))
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return p.err
}
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defer func() {
if err := stored.Close(); err != nil {
log.Errorf("loadFullSize: error closing stored full size: %s", err)
}
}()
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// decode the image
ct := p.attachment.File.ContentType
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switch ct {
case mimeImageJpeg, mimeImagePng, mimeImageWebp:
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decoded, err = decodeImage(stored, ct)
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case mimeImageGif:
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decoded, err = decodeGif(stored)
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default:
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err = fmt.Errorf("loadFullSize: content type %s not a processible image type", ct)
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}
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if err != nil {
p.err = err
atomic.StoreInt32(&p.fullSizeState, int32(errored))
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return p.err
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}
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// set appropriate fields on the attachment based on the image we derived
p.attachment.FileMeta.Original = gtsmodel.Original{
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Width: decoded.width,
Height: decoded.height,
Size: decoded.size,
Aspect: decoded.aspect,
}
p.attachment.File.UpdatedAt = time.Now()
p.attachment.Processing = gtsmodel.ProcessingStatusProcessed
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// we're done processing the full-size image
atomic.StoreInt32(&p.fullSizeState, int32(complete))
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
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log.Tracef("loadFullSize: finished processing full size image for attachment %s", p.attachment.URL)
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fallthrough
case complete:
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return nil
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case errored:
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return p.err
}
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return fmt.Errorf("loadFullSize: full size processing status %d unknown", p.fullSizeState)
}
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// store calls the data function attached to p if it hasn't been called yet,
// and updates the underlying attachment fields as necessary. It will then stream
// bytes from p's reader directly into storage so that it can be retrieved later.
func (p *ProcessingMedia) store(ctx context.Context) error {
// check if we've already done this and bail early if we have
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if p.read {
return nil
}
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// execute the data function to get the readcloser out of it
rc, fileSize, err := p.data(ctx)
if err != nil {
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return fmt.Errorf("store: error executing data function: %s", err)
}
// defer closing the reader when we're done with it
defer func() {
if err := rc.Close(); err != nil {
log.Errorf("store: error closing readcloser: %s", err)
}
}()
// 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)
}
}
}()
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// 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 {
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return fmt.Errorf("store: error reading initial %d bytes: %s", maxFileHeaderBytes, err)
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}
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// now we have the file header we can work out the content type from it
contentType, err := parseContentType(firstBytes)
if err != nil {
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return fmt.Errorf("store: error parsing content type: %s", err)
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}
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// bail if this is a type we can't process
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if !supportedImage(contentType) {
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return fmt.Errorf("store: media type %s not (yet) supported", contentType)
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}
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// extract the file extension
split := strings.Split(contentType, "/")
if len(split) != 2 {
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return fmt.Errorf("store: content type %s was not valid", contentType)
}
extension := split[1] // something like 'jpeg'
// concatenate the cleaned up first bytes with the existing bytes still in the reader (thanks Mara)
multiReader := io.MultiReader(bytes.NewBuffer(firstBytes), rc)
// use the extension to derive the attachment type
// and, while we're in here, clean up exif data from
// the image if we already know the fileSize
var readerToStore io.Reader
switch extension {
case mimeGif:
p.attachment.Type = gtsmodel.FileTypeImage
// nothing to terminate, we can just store the multireader
readerToStore = multiReader
case mimeJpeg, mimePng, mimeWebp:
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p.attachment.Type = gtsmodel.FileTypeImage
if fileSize > 0 {
terminated, err := terminator.Terminate(multiReader, int(fileSize), extension)
if err != nil {
return fmt.Errorf("store: exif error: %s", err)
}
defer func() {
if closer, ok := terminated.(io.Closer); ok {
if err := closer.Close(); err != nil {
log.Errorf("store: error closing terminator reader: %s", err)
}
}
}()
// store the exif-terminated version of what was in the multireader
readerToStore = terminated
} else {
// can't terminate if we don't know the file size, so just store the multiReader
readerToStore = multiReader
}
default:
return fmt.Errorf("store: couldn't process %s", extension)
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}
// now set some additional fields on the attachment since
// we know more about what the underlying media actually is
p.attachment.URL = uris.GenerateURIForAttachment(p.attachment.AccountID, string(TypeAttachment), string(SizeOriginal), p.attachment.ID, extension)
p.attachment.File.ContentType = contentType
p.attachment.File.Path = fmt.Sprintf("%s/%s/%s/%s.%s", p.attachment.AccountID, TypeAttachment, SizeOriginal, p.attachment.ID, extension)
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// 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 {
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)
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}
cached := true
p.attachment.Cached = &cached
p.attachment.File.FileSize = int(fileSize)
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p.read = true
[chore] use our own logging implementation (#716) * first commit Signed-off-by: kim <grufwub@gmail.com> * replace logging with our own log library Signed-off-by: kim <grufwub@gmail.com> * fix imports Signed-off-by: kim <grufwub@gmail.com> * fix log imports Signed-off-by: kim <grufwub@gmail.com> * add license text Signed-off-by: kim <grufwub@gmail.com> * fix package import cycle between config and log package Signed-off-by: kim <grufwub@gmail.com> * fix empty kv.Fields{} being passed to WithFields() Signed-off-by: kim <grufwub@gmail.com> * fix uses of log.WithFields() with whitespace issues and empty slices Signed-off-by: kim <grufwub@gmail.com> * *linter related grumbling* Signed-off-by: kim <grufwub@gmail.com> * gofmt the codebase! also fix more log.WithFields() formatting issues Signed-off-by: kim <grufwub@gmail.com> * update testrig code to match new changes Signed-off-by: kim <grufwub@gmail.com> * fix error wrapping in non fmt.Errorf function Signed-off-by: kim <grufwub@gmail.com> * add benchmarking of log.Caller() vs non-cached Signed-off-by: kim <grufwub@gmail.com> * fix syslog tests, add standard build tags to test runner to ensure consistency Signed-off-by: kim <grufwub@gmail.com> * make syslog tests more robust Signed-off-by: kim <grufwub@gmail.com> * fix caller depth arithmatic (is that how you spell it?) Signed-off-by: kim <grufwub@gmail.com> * update to use unkeyed fields in kv.Field{} instances Signed-off-by: kim <grufwub@gmail.com> * update go-kv library Signed-off-by: kim <grufwub@gmail.com> * update libraries list Signed-off-by: kim <grufwub@gmail.com> * fuck you linter get nerfed Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tobi <31960611+tsmethurst@users.noreply.github.com>
2022-07-19 08:47:55 +00:00
log.Tracef("store: finished storing initial data for attachment %s", p.attachment.URL)
return nil
}
func (m *manager) preProcessMedia(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, accountID string, ai *AdditionalMediaInfo) (*ProcessingMedia, error) {
id, err := id.NewRandomULID()
if err != nil {
return nil, err
}
file := gtsmodel.File{
Path: "", // we don't know yet because it depends on the uncalled DataFunc
ContentType: "", // we don't know yet because it depends on the uncalled DataFunc
UpdatedAt: time.Now(),
}
thumbnail := gtsmodel.Thumbnail{
URL: uris.GenerateURIForAttachment(accountID, string(TypeAttachment), string(SizeSmall), id, mimeJpeg), // all thumbnails are encoded as jpeg,
Path: fmt.Sprintf("%s/%s/%s/%s.%s", accountID, TypeAttachment, SizeSmall, id, mimeJpeg), // all thumbnails are encoded as jpeg,
ContentType: mimeImageJpeg,
UpdatedAt: time.Now(),
}
avatar := false
header := false
cached := false
// populate initial fields on the media attachment -- some of these will be overwritten as we proceed
attachment := &gtsmodel.MediaAttachment{
ID: id,
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
StatusID: "",
URL: "", // we don't know yet because it depends on the uncalled DataFunc
RemoteURL: "",
Type: gtsmodel.FileTypeUnknown, // we don't know yet because it depends on the uncalled DataFunc
FileMeta: gtsmodel.FileMeta{},
AccountID: accountID,
Description: "",
ScheduledStatusID: "",
Blurhash: "",
Processing: gtsmodel.ProcessingStatusReceived,
File: file,
Thumbnail: thumbnail,
Avatar: &avatar,
Header: &header,
Cached: &cached,
}
// check if we have additional info to add to the attachment,
// and overwrite some of the attachment fields if so
if ai != nil {
if ai.CreatedAt != nil {
attachment.CreatedAt = *ai.CreatedAt
}
if ai.StatusID != nil {
attachment.StatusID = *ai.StatusID
}
if ai.RemoteURL != nil {
attachment.RemoteURL = *ai.RemoteURL
}
if ai.Description != nil {
attachment.Description = *ai.Description
}
if ai.ScheduledStatusID != nil {
attachment.ScheduledStatusID = *ai.ScheduledStatusID
}
if ai.Blurhash != nil {
attachment.Blurhash = *ai.Blurhash
}
if ai.Avatar != nil {
attachment.Avatar = ai.Avatar
}
if ai.Header != nil {
attachment.Header = ai.Header
}
if ai.FocusX != nil {
attachment.FileMeta.Focus.X = *ai.FocusX
}
if ai.FocusY != nil {
attachment.FileMeta.Focus.Y = *ai.FocusY
}
}
processingMedia := &ProcessingMedia{
attachment: attachment,
data: data,
postData: postData,
thumbState: int32(received),
fullSizeState: int32(received),
database: m.db,
storage: m.storage,
}
return processingMedia, nil
}
func (m *manager) preProcessRecache(ctx context.Context, data DataFunc, postData PostDataCallbackFunc, attachmentID string) (*ProcessingMedia, error) {
// get the existing attachment
attachment, err := m.db.GetAttachmentByID(ctx, attachmentID)
if err != nil {
return nil, err
}
processingMedia := &ProcessingMedia{
attachment: attachment,
data: data,
postData: postData,
thumbState: int32(received),
fullSizeState: int32(received),
database: m.db,
storage: m.storage,
recache: true, // indicate it's a recache
}
return processingMedia, nil
}