[chore] Move to codeberg's exif-terminator (#2536)

1 files changed, 0 insertions, 158 deletions

diff --git a/vendor/github.com/superseriousbusiness/exif-terminator/terminator.go b/vendor/github.com/superseriousbusiness/exif-terminator/terminator.go
deleted file mode 100644
index 7dd3d9ad7..000000000
--- a/vendor/github.com/superseriousbusiness/exif-terminator/terminator.go
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
-   exif-terminator
-   Copyright (C) 2022 SuperSeriousBusiness 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 terminator
-
-import (
-	"bufio"
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-
-	jpegstructure "github.com/superseriousbusiness/go-jpeg-image-structure/v2"
-	pngstructure "github.com/superseriousbusiness/go-png-image-structure/v2"
-)
-
-func Terminate(in io.Reader, fileSize int, mediaType string) (io.Reader, error) {
-	// To avoid keeping too much stuff
-	// in memory we want to pipe data
-	// directly to the reader.
-	pipeReader, pipeWriter := io.Pipe()
-
-	// We don't know ahead of time how long
-	// segments might be: they could be as
-	// large as the file itself, so we need
-	// a buffer with generous overhead.
-	scanner := bufio.NewScanner(in)
-	scanner.Buffer([]byte{}, fileSize)
-
-	var err error
-	switch mediaType {
-	case "image/jpeg", "jpeg", "jpg":
-		err = terminateJpeg(scanner, pipeWriter, fileSize)
-
-	case "image/webp", "webp":
-		err = terminateWebp(scanner, pipeWriter)
-
-	case "image/png", "png":
-		// For pngs we need to skip the header bytes, so read
-		// them in and check we're really dealing with a png.
-		header := make([]byte, len(pngstructure.PngSignature))
-		if _, headerError := in.Read(header); headerError != nil {
-			err = headerError
-			break
-		}
-
-		if !bytes.Equal(header, pngstructure.PngSignature[:]) {
-			err = errors.New("could not decode png: invalid header")
-			break
-		}
-
-		err = terminatePng(scanner, pipeWriter)
-	default:
-		err = fmt.Errorf("mediaType %s cannot be processed", mediaType)
-	}
-
-	return pipeReader, err
-}
-
-func terminateJpeg(scanner *bufio.Scanner, writer *io.PipeWriter, expectedFileSize int) error {
-	v := &jpegVisitor{
-		writer:           writer,
-		expectedFileSize: expectedFileSize,
-	}
-
-	// Provide the visitor to the splitter so
-	// that it triggers on every section scan.
-	js := jpegstructure.NewJpegSplitter(v)
-
-	// The visitor also needs to read back the
-	// list of segments: for this it needs to
-	// know what jpeg splitter it's attached to,
-	// so give it a pointer to the splitter.
-	v.js = js
-
-	// Jpeg visitor's 'split' function
-	// satisfies bufio.SplitFunc{}.
-	scanner.Split(js.Split)
-
-	go scanAndClose(scanner, writer)
-	return nil
-}
-
-func terminateWebp(scanner *bufio.Scanner, writer *io.PipeWriter) error {
-	v := &webpVisitor{
-		writer: writer,
-	}
-
-	// Webp visitor's 'split' function
-	// satisfies bufio.SplitFunc{}.
-	scanner.Split(v.split)
-
-	go scanAndClose(scanner, writer)
-	return nil
-}
-
-func terminatePng(scanner *bufio.Scanner, writer *io.PipeWriter) error {
-	ps := pngstructure.NewPngSplitter()
-
-	// Don't bother checking CRC;
-	// we're overwriting it anyway.
-	ps.DoCheckCrc(false)
-
-	v := &pngVisitor{
-		ps:               ps,
-		writer:           writer,
-		lastWrittenChunk: -1,
-	}
-
-	// Png visitor's 'split' function
-	// satisfies bufio.SplitFunc{}.
-	scanner.Split(v.split)
-
-	go scanAndClose(scanner, writer)
-	return nil
-}
-
-// scanAndClose scans through the given scanner until there's
-// nothing left to scan, and then closes the writer so that the
-// reader on the other side of the pipe knows that we're done.
-//
-// Any error encountered when scanning will be logged by terminator.
-//
-// Due to the nature of io.Pipe, writing won't actually work
-// until the pipeReader starts being read by the caller, which
-// is why this function should always be called asynchronously.
-func scanAndClose(scanner *bufio.Scanner, writer *io.PipeWriter) {
-	var err error
-
-	defer func() {
-		// Always close writer, using returned
-		// scanner error (if any). If err is nil
-		// then the standard io.EOF will be used.
-		// (this will not overwrite existing).
-		writer.CloseWithError(err)
-	}()
-
-	for scanner.Scan() {
-	}
-
-	// Set error on return.
-	err = scanner.Err()
-}