Add FileUtil#getContentType().

src/main/scala/app/RepositoryViewerController.scala

@@ -94,17 +94,10 @@ trait RepositoryViewerControllerBase extends ControllerBase {
 
       if(raw){
         // Download
-        val mimeType = FileUtil.getMimeType(path)
-        val bytes = JGitUtil.getContent(git, objectId, false).get
-
-        contentType = if(mimeType == "application/octet-stream" && FileUtil.isText(bytes)){
-          "text/plain"
-        } else {
-          mimeType
-        }
-        //response.setHeader("Content-Disposition", s"inline; filename=${FileUtil.getFileName(path)}")
+        defining(JGitUtil.getContent(git, objectId, false).get){ bytes =>
+          contentType = FileUtil.getContentType(path, bytes)
           bytes
-
+        }
       } else {
         // Viewer
         val large  = FileUtil.isLarge(git.getRepository.getObjectDatabase.open(objectId).getSize)

src/main/scala/app/WikiController.scala

@@ -164,12 +164,7 @@ trait WikiControllerBase extends ControllerBase with FlashMapSupport {
     val path = multiParams("splat").head
 
     getFileContent(repository.owner, repository.name, path).map { bytes =>
-      val mimeType = FileUtil.getMimeType(path)
-      contentType = if(mimeType == "application/octet-stream" && FileUtil.isText(bytes)){
-        "text/plain"
-      } else {
-        mimeType
-      }
+      contentType = FileUtil.getContentType(path, bytes)
       bytes
     } getOrElse NotFound
   })

src/main/scala/util/FileUtil.scala

@@ -16,6 +16,16 @@ object FileUtil {
       }
     }
 
+  def getContentType(name: String, bytes: Array[Byte]): String = {
+    defining(getMimeType(name)){ mimeType =>
+      if(mimeType == "application/octet-stream" && isText(bytes)){
+        "text/plain"
+      } else {
+        mimeType
+      }
+    }
+  }
+
   def isImage(name: String): Boolean = getMimeType(name).startsWith("image/")
   
   def isLarge(size: Long): Boolean = (size > 1024 * 1000)