Don't write file thumbnail if spoiler (otherwise it overwrites /spoiler.png)

Also add spoilering for videos and non-video non-image uploads

pkg/posting/uploads/attach.go

@@ -178,6 +178,7 @@ func AttachUploadFromRequest(request *http.Request, writer http.ResponseWriter,
 		Str("referer", request.Referer())
 
 	upload.IsSpoilered = request.FormValue("spoiler") == "on"
+	gcutil.LogBool("isSpoiler", upload.IsSpoilered, infoEv, accessEv, errEv)
 
 	uploadHandler, ok := uploadHandlers[ext]
 	if !ok {
@@ -187,6 +188,7 @@ func AttachUploadFromRequest(request *http.Request, writer http.ResponseWriter,
 	}
 
 	if err = uploadHandler(upload, post, postBoard.Dir, filePath, thumbPath, catalogThumbPath, infoEv, accessEv, errEv); err != nil {
+		// uploadHandler is assumed to handle logging
 		return nil, errors.New("error processing upload: " + err.Error())
 	}
 

pkg/posting/uploads/processimage.go

@@ -7,7 +7,6 @@ import (
 	"os"
 	"os/exec"
 	"path"
-	"syscall"
 
 	"github.com/disintegration/imaging"
 	"github.com/gochan-org/gochan/pkg/config"
@@ -67,6 +66,7 @@ func processImage(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 			Str("filePath", filePath).Send()
 		return err
 	}
+	accessEv.Str("handler", "image")
 
 	// Get image width and height, as well as thumbnail width and height
 	upload.Width = img.Bounds().Max.X
@@ -77,19 +77,12 @@ func processImage(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 	}
 	upload.ThumbnailWidth, upload.ThumbnailHeight = getThumbnailSize(upload.Width, upload.Height, board, thumbType)
 
-	documentRoot := config.GetSystemCriticalConfig().DocumentRoot
 	if upload.IsSpoilered {
-		// If spoiler is enabled, symlink thumbnail to spoiler image
-		if _, err := os.Stat(path.Join(documentRoot, "spoiler.png")); err != nil {
-			errEv.Err(err).Caller().Send()
-			return err
-		}
-		if err = syscall.Symlink(path.Join(documentRoot, "spoiler.png"), thumbPath); err != nil {
-			errEv.Err(err).Caller().
-				Str("thumbPath", thumbPath).
-				Msg("Error creating symbolic link to thumbnail path")
-			return err
+		if err = createSpoilerThumbnail(upload, board, post.IsTopPost, thumbPath); err != nil {
+			errEv.Err(err).Caller().Msg("Unable to create spoiler thumbnail")
+			return ErrUnableToCreateSpoiler
 		}
+		return nil
 	}
 
 	shouldThumb := ShouldCreateThumbnail(filePath,
@@ -121,7 +114,7 @@ func processImage(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 		// If image fits in thumbnail size, symlink thumbnail to original
 		upload.ThumbnailWidth = img.Bounds().Max.X
 		upload.ThumbnailHeight = img.Bounds().Max.Y
-		if err := syscall.Symlink(filePath, thumbPath); err != nil {
+		if err := os.Symlink(filePath, thumbPath); err != nil {
 			errEv.Err(err).Caller().
 				Str("thumbPath", thumbPath).
 				Msg("Couldn't generate catalog thumbnail")
@@ -138,6 +131,5 @@ func processImage(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 			}
 		}
 	}
-	accessEv.Str("handler", "image")
 	return nil
 }

pkg/posting/uploads/processother.go

@@ -17,11 +17,14 @@ var (
 func processOther(upload *gcsql.Upload, post *gcsql.Post, board string, filePath string, thumbPath string, catalogThumbPath string, infoEv *zerolog.Event, accessEv *zerolog.Event, errEv *zerolog.Event) error {
 	boardConfig := config.GetBoardConfig(board)
 	ext := path.Ext(filePath)
-	cfgThumb, ok := boardConfig.AllowOtherExtensions[ext]
+	thumbnailFilename, ok := boardConfig.AllowOtherExtensions[ext]
 	if !ok {
 		errEv.Err(ErrUnsupportedFileExt).Str("ext", ext).Caller().Send()
 		return ErrUnsupportedFileExt
 	}
+	if upload.IsSpoilered {
+		thumbnailFilename = "spoiler.png"
+	}
 	infoEv.Str("post", "withOther")
 
 	if post.ThreadID == 0 {
@@ -33,8 +36,8 @@ func processOther(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 		upload.ThumbnailWidth = boardConfig.ThumbWidthReply
 		upload.ThumbnailHeight = boardConfig.ThumbHeightReply
 	}
-	staticThumbPath := path.Join("static/", cfgThumb)
-	originalThumbPath := path.Join(config.GetSystemCriticalConfig().DocumentRoot, staticThumbPath)
+	originalThumbPath := path.Join(config.GetSystemCriticalConfig().DocumentRoot, "static", thumbnailFilename)
+
 	_, err := os.Stat(originalThumbPath)
 	if err != nil {
 		errEv.Err(err).Str("originalThumbPath", originalThumbPath).Send()

pkg/posting/uploads/processvideo.go

@@ -14,7 +14,15 @@ import (
 func processVideo(upload *gcsql.Upload, post *gcsql.Post, board string, filePath string, thumbPath string, catalogThumbPath string, infoEv *zerolog.Event, accessEv *zerolog.Event, errEv *zerolog.Event) error {
 	boardConfig := config.GetBoardConfig(board)
 	infoEv.Str("post", "withVideo")
+	accessEv.Str("handler", "video")
 	var err error
+	if upload.IsSpoilered {
+		if err = createSpoilerThumbnail(upload, board, post.IsTopPost, thumbPath); err != nil {
+			errEv.Err(err).Caller().Msg("Unable to create spoiler thumbnail")
+			return ErrUnableToCreateSpoiler
+		}
+		return nil
+	}
 	if post.ThreadID == 0 {
 		if err = createVideoThumbnail(filePath, thumbPath, boardConfig.ThumbWidth); err != nil {
 			errEv.Err(err).Caller().
@@ -67,6 +75,5 @@ func processVideo(upload *gcsql.Upload, post *gcsql.Post, board string, filePath
 		upload.ThumbnailWidth, upload.ThumbnailHeight = getThumbnailSize(
 			upload.Width, upload.Height, board, thumbType)
 	}
-	accessEv.Str("handler", "video")
 	return nil
 }

pkg/posting/uploads/thumbnails.go

@@ -3,6 +3,7 @@ package uploads
 import (
 	"errors"
 	"image"
+	"os"
 	"os/exec"
 	"path"
 	"strconv"
@@ -12,6 +13,7 @@ import (
 
 	"github.com/disintegration/imaging"
 	"github.com/gochan-org/gochan/pkg/config"
+	"github.com/gochan-org/gochan/pkg/gcsql"
 	"github.com/gochan-org/gochan/pkg/gcutil"
 )
 
@@ -32,6 +34,7 @@ var (
 		".jfif": ".jpg",
 		".jpeg": ".jpg",
 	}
+	ErrUnableToCreateSpoiler = errors.New("unable to create spoiler thumbnail")
 )
 
 func GetThumbnailExtension(fileExt string) string {
@@ -83,6 +86,22 @@ func createVideoThumbnail(video, thumb string, size int) error {
 	return err
 }
 
+func createSpoilerThumbnail(upload *gcsql.Upload, board string, isOP bool, thumbnailPath string) error {
+	boardCfg := config.GetBoardConfig(board)
+	spoilerPath := path.Join(config.GetSystemCriticalConfig().DocumentRoot, "static/spoiler.png")
+	if _, err := os.Stat(spoilerPath); err != nil {
+		return err
+	}
+	if isOP {
+		upload.ThumbnailWidth = boardCfg.ThumbWidth
+		upload.ThumbnailHeight = boardCfg.ThumbHeight
+	} else {
+		upload.ThumbnailWidth = boardCfg.ThumbWidthReply
+		upload.ThumbnailHeight = boardCfg.ThumbHeightReply
+	}
+	return os.Symlink(spoilerPath, thumbnailPath)
+}
+
 func getBoardThumbnailSize(boardDir string, thumbType ThumbnailCategory) (int, int) {
 	boardCfg := config.GetBoardConfig(boardDir)
 	switch thumbType {