diff --git a/src/main/scala/gitbucket/core/controller/ApiController.scala b/src/main/scala/gitbucket/core/controller/ApiController.scala
index 959363f..4a9b218 100644
--- a/src/main/scala/gitbucket/core/controller/ApiController.scala
+++ b/src/main/scala/gitbucket/core/controller/ApiController.scala
@@ -105,22 +105,11 @@
     })
   })
 
-  // copy code
-  private def splitPath(repository: RepositoryService.RepositoryInfo, path: String): (String, String) = {
-    val id = repository.branchList.collectFirst {
-      case branch if(path == branch || path.startsWith(branch + "/")) => branch
-    } orElse repository.tags.collectFirst {
-      case tag if(path == tag.name || path.startsWith(tag.name + "/")) => tag.name
-    } getOrElse path.split("/")(0)
-
-    (id, path.substring(id.length).stripPrefix("/"))
-  }
-
   /*
    * https://developer.github.com/v3/repos/contents/#get-contents
    */
   get("/api/v3/repos/:owner/:repo/contents/*")(referrersOnly { repository =>
-    val (id, path) = splitPath(repository, multiParams("splat").head)
+    val (id, path) = repository.splitPath(multiParams("splat").head)
     val refStr = params("ref")
     using(Git.open(getRepositoryDir(params("owner"), params("repo")))){ git =>
       if (path.isEmpty) {
diff --git a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
index 2563558..455a5c1 100644
--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -125,7 +125,7 @@
    * Displays the file list of the specified path and branch.
    */
   get("/:owner/:repository/tree/*")(referrersOnly { repository =>
-    val (id, path) = splitPath(repository, multiParams("splat").head)
+    val (id, path) = repository.splitPath(multiParams("splat").head)
     if(path.isEmpty){
       fileList(repository, id)
     } else {
@@ -137,7 +137,7 @@
    * Displays the commit list of the specified resource.
    */
   get("/:owner/:repository/commits/*")(referrersOnly { repository =>
-    val (branchName, path) = splitPath(repository, multiParams("splat").head)
+    val (branchName, path) = repository.splitPath(multiParams("splat").head)
     val page = params.get("page").flatMap(_.toIntOpt).getOrElse(1)
 
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
@@ -153,7 +153,7 @@
   })
 
   get("/:owner/:repository/new/*")(collaboratorsOnly { repository =>
-    val (branch, path) = splitPath(repository, multiParams("splat").head)
+    val (branch, path) = repository.splitPath(multiParams("splat").head)
     val protectedBranch = getProtectedBranchInfo(repository.owner, repository.name, branch).needStatusCheck(context.loginAccount.get.userName)
     html.editor(branch, repository, if(path.length == 0) Nil else path.split("/").toList,
       None, JGitUtil.ContentInfo("text", None, Some("UTF-8")),
@@ -161,7 +161,7 @@
   })
 
   get("/:owner/:repository/edit/*")(collaboratorsOnly { repository =>
-    val (branch, path) = splitPath(repository, multiParams("splat").head)
+    val (branch, path) = repository.splitPath(multiParams("splat").head)
     val protectedBranch = getProtectedBranchInfo(repository.owner, repository.name, branch).needStatusCheck(context.loginAccount.get.userName)
 
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
@@ -177,7 +177,7 @@
   })
 
   get("/:owner/:repository/remove/*")(collaboratorsOnly { repository =>
-    val (branch, path) = splitPath(repository, multiParams("splat").head)
+    val (branch, path) = repository.splitPath(multiParams("splat").head)
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
       val revCommit = JGitUtil.getRevCommitFromId(git, git.getRepository.resolve(branch))
 
@@ -235,7 +235,7 @@
   })
 
   get("/:owner/:repository/raw/*")(referrersOnly { repository =>
-    val (id, path) = splitPath(repository, multiParams("splat").head)
+    val (id, path) = repository.splitPath(multiParams("splat").head)
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
       val revCommit = JGitUtil.getRevCommitFromId(git, git.getRepository.resolve(id))
       getPathObjectId(git, path, revCommit).flatMap { objectId =>
@@ -253,7 +253,7 @@
    * Displays the file content of the specified branch or commit.
    */
   val blobRoute = get("/:owner/:repository/blob/*")(referrersOnly { repository =>
-    val (id, path) = splitPath(repository, multiParams("splat").head)
+    val (id, path) = repository.splitPath(multiParams("splat").head)
     val raw = params.get("raw").getOrElse("false").toBoolean
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
       val revCommit = JGitUtil.getRevCommitFromId(git, git.getRepository.resolve(id))
@@ -285,7 +285,7 @@
    * Blame data.
    */
   ajaxGet("/:owner/:repository/get-blame/*")(referrersOnly { repository =>
-    val (id, path) = splitPath(repository, multiParams("splat").head)
+    val (id, path) = repository.splitPath(multiParams("splat").head)
     contentType = formats("json")
     using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
       val last = git.log.add(git.getRepository.resolve(id)).addPath(path).setMaxCount(1).call.iterator.next.name
@@ -526,17 +526,6 @@
     }
   })
 
-  private def splitPath(repository: RepositoryService.RepositoryInfo, path: String): (String, String) = {
-    val id = repository.branchList.collectFirst {
-      case branch if(path == branch || path.startsWith(branch + "/")) => branch
-    } orElse repository.tags.collectFirst {
-      case tag if(path == tag.name || path.startsWith(tag.name + "/")) => tag.name
-    } getOrElse path.split("/")(0)
-
-    (id, path.substring(id.length).stripPrefix("/"))
-  }
-
-
   private val readmeFiles = PluginRegistry().renderableExtensions.map { extension =>
     s"readme.${extension}"
   } ++ Seq("readme.txt", "readme")
diff --git a/src/main/scala/gitbucket/core/service/RepositoryService.scala b/src/main/scala/gitbucket/core/service/RepositoryService.scala
index 7167b37..959e735 100644
--- a/src/main/scala/gitbucket/core/service/RepositoryService.scala
+++ b/src/main/scala/gitbucket/core/service/RepositoryService.scala
@@ -420,6 +420,17 @@
 
     def httpUrl(implicit context: Context): String = RepositoryService.httpUrl(owner, name)
     def sshUrl(implicit context: Context): Option[String] = RepositoryService.sshUrl(owner, name)
+
+    def splitPath(path: String): (String, String) = {
+      val id = branchList.collectFirst {
+        case branch if(path == branch || path.startsWith(branch + "/")) => branch
+      } orElse tags.collectFirst {
+        case tag if(path == tag.name || path.startsWith(tag.name + "/")) => tag.name
+      } getOrElse path.split("/")(0)
+
+      (id, path.substring(id.length).stripPrefix("/"))
+    }
+
   }
 
   def httpUrl(owner: String, name: String)(implicit context: Context): String = s"${context.baseUrl}/git/${owner}/${name}.git"