From e16d3d72b69cb3ed547643cb7ae8f822327966cd Mon Sep 17 00:00:00 2001
From: advplyr <advplyr@protonmail.com>
Date: Mon, 24 Mar 2025 18:01:38 -0500
Subject: [PATCH] Fix uploader check if item already exists in a subdirectory
 #4146

---
 client/pages/upload/index.vue              |  8 +++-
 client/strings/en-us.json                  |  2 +
 server/controllers/FileSystemController.js | 45 ++++++++++++++++++++--
 3 files changed, 49 insertions(+), 6 deletions(-)

diff --git a/client/pages/upload/index.vue b/client/pages/upload/index.vue
index 7fd74b78..39955181 100644
--- a/client/pages/upload/index.vue
+++ b/client/pages/upload/index.vue
@@ -362,10 +362,14 @@ export default {
       for (const item of items) {
         const filepath = Path.join(this.selectedFolder.fullPath, item.directory)
         const exists = await this.$axios
-          .$post(`/api/filesystem/pathexists`, { filepath })
+          .$post(`/api/filesystem/pathexists`, { filepath, directory: item.directory, folderPath: this.selectedFolder.fullPath })
           .then((data) => {
             if (data.exists) {
-              this.$toast.error(`Filepath "${filepath}" already exists on server`)
+              if (data.libraryItemTitle) {
+                this.$toast.error(this.$getString('ToastUploaderItemExistsInSubdirectoryError', [data.libraryItemTitle]))
+              } else {
+                this.$toast.error(this.$getString('ToastUploaderFilepathExistsError', [filepath]))
+              }
             }
             return data.exists
           })
diff --git a/client/strings/en-us.json b/client/strings/en-us.json
index c67c1630..636e3019 100644
--- a/client/strings/en-us.json
+++ b/client/strings/en-us.json
@@ -1086,6 +1086,8 @@
   "ToastUnknownError": "Unknown error",
   "ToastUnlinkOpenIdFailed": "Failed to unlink user from OpenID",
   "ToastUnlinkOpenIdSuccess": "User unlinked from OpenID",
+  "ToastUploaderFilepathExistsError": "Filepath \"{0}\" already exists on server",
+  "ToastUploaderItemExistsInSubdirectoryError": "Item \"{0}\" is using a subdirectory of the upload path.",
   "ToastUserDeleteFailed": "Failed to delete user",
   "ToastUserDeleteSuccess": "User deleted",
   "ToastUserPasswordChangeSuccess": "Password changed successfully",
diff --git a/server/controllers/FileSystemController.js b/server/controllers/FileSystemController.js
index e923c495..d0b190a4 100644
--- a/server/controllers/FileSystemController.js
+++ b/server/controllers/FileSystemController.js
@@ -4,6 +4,7 @@ const Logger = require('../Logger')
 const fs = require('../libs/fsExtra')
 const { toNumber } = require('../utils/index')
 const fileUtils = require('../utils/fileUtils')
+const Database = require('../Database')
 
 /**
  * @typedef RequestUserObject
@@ -87,14 +88,50 @@ class FileSystemController {
       return res.sendStatus(403)
     }
 
-    const filepath = req.body.filepath
-    if (!filepath?.length) {
+    const { filepath, directory, folderPath } = req.body
+
+    if (!filepath?.length || typeof filepath !== 'string') {
       return res.sendStatus(400)
     }
 
     const exists = await fs.pathExists(filepath)
-    res.json({
-      exists
+
+    if (exists) {
+      return res.json({
+        exists: true
+      })
+    }
+
+    // If directory and folderPath are passed in, check if a library item exists in a subdirectory
+    // See: https://github.com/advplyr/audiobookshelf/issues/4146
+    if (typeof directory === 'string' && typeof folderPath === 'string' && directory.length > 0 && folderPath.length > 0) {
+      const cleanedDirectory = directory.split('/').filter(Boolean).join('/')
+      if (cleanedDirectory.includes('/')) {
+        // Can only be 2 levels deep
+        const possiblePaths = []
+        const subdir = Path.dirname(directory)
+        possiblePaths.push(fileUtils.filePathToPOSIX(Path.join(folderPath, subdir)))
+        if (subdir.includes('/')) {
+          possiblePaths.push(fileUtils.filePathToPOSIX(Path.join(folderPath, Path.dirname(subdir))))
+        }
+
+        const libraryItem = await Database.libraryItemModel.findOne({
+          where: {
+            path: possiblePaths
+          }
+        })
+
+        if (libraryItem) {
+          return res.json({
+            exists: true,
+            libraryItemTitle: libraryItem.title
+          })
+        }
+      }
+    }
+
+    return res.json({
+      exists: false
     })
   }
 }