Fix lfs file viewer (#14568)

Author: lunny

routers/repo/view.go

@@ -385,7 +385,6 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 
 	fileSize := blob.Size()
 	ctx.Data["FileIsSymlink"] = entry.IsLink()
-	ctx.Data["FileSize"] = fileSize
 	ctx.Data["FileName"] = blob.Name()
 	ctx.Data["RawFileLink"] = rawLink + "/" + ctx.Repo.TreePath
 
@@ -395,21 +394,8 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 
 	isTextFile := base.IsTextFile(buf)
 	isLFSFile := false
-	ctx.Data["IsTextFile"] = isTextFile
-
 	isDisplayingSource := ctx.Query("display") == "source"
 	isDisplayingRendered := !isDisplayingSource
-	isRepresentableAsText := base.IsRepresentableAsText(buf)
-	ctx.Data["IsRepresentableAsText"] = isRepresentableAsText
-	if !isRepresentableAsText {
-		// If we can't show plain text, always try to render.
-		isDisplayingSource = false
-		isDisplayingRendered = true
-	}
-	ctx.Data["IsDisplayingSource"] = isDisplayingSource
-	ctx.Data["IsDisplayingRendered"] = isDisplayingRendered
-
-	ctx.Data["IsTextSource"] = isTextFile || isDisplayingSource
 
 	//Check for LFS meta file
 	if isTextFile && setting.LFS.StartServer {
@@ -422,7 +408,6 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 			}
 		}
 		if meta != nil {
-			ctx.Data["IsLFSFile"] = true
 			isLFSFile = true
 
 			// OK read the lfs object
@@ -445,14 +430,25 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 			buf = buf[:n]
 
 			isTextFile = base.IsTextFile(buf)
-			ctx.Data["IsTextFile"] = isTextFile
-
 			fileSize = meta.Size
-			ctx.Data["FileSize"] = meta.Size
-			filenameBase64 := base64.RawURLEncoding.EncodeToString([]byte(blob.Name()))
-			ctx.Data["RawFileLink"] = fmt.Sprintf("%s%s.git/info/lfs/objects/%s/%s", setting.AppURL, ctx.Repo.Repository.FullName(), meta.Oid, filenameBase64)
+			ctx.Data["RawFileLink"] = fmt.Sprintf("%s/media/%s/%s", ctx.Repo.RepoLink, ctx.Repo.BranchNameSubURL(), ctx.Repo.TreePath)
 		}
 	}
+
+	isRepresentableAsText := base.IsRepresentableAsText(buf)
+	if !isRepresentableAsText {
+		// If we can't show plain text, always try to render.
+		isDisplayingSource = false
+		isDisplayingRendered = true
+	}
+	ctx.Data["IsLFSFile"] = isLFSFile
+	ctx.Data["FileSize"] = fileSize
+	ctx.Data["IsTextFile"] = isTextFile
+	ctx.Data["IsRepresentableAsText"] = isRepresentableAsText
+	ctx.Data["IsDisplayingSource"] = isDisplayingSource
+	ctx.Data["IsDisplayingRendered"] = isDisplayingRendered
+	ctx.Data["IsTextSource"] = isTextFile || isDisplayingSource
+
 	// Check LFS Lock
 	lfsLock, err := ctx.Repo.Repository.GetTreePathLock(ctx.Repo.TreePath)
 	ctx.Data["LFSLock"] = lfsLock
@@ -542,7 +538,6 @@ func renderFile(ctx *context.Context, entry *git.TreeEntry, treeLink, rawLink st
 			ctx.Data["MarkupType"] = markupType
 			ctx.Data["FileContent"] = string(markup.Render(blob.Name(), buf, path.Dir(treeLink), ctx.Repo.Repository.ComposeDocumentMetas()))
 		}
-
 	}
 
 	if ctx.Repo.CanEnableEditor() {