From 226acdb4c91ffb7f553f988ecd6d4c45ab01c1fb Mon Sep 17 00:00:00 2001
From: kunfei <gekunfei@live.com>
Date: Sun, 1 May 2022 21:42:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
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---
 app/src/main/java/io/legado/app/help/storage/AppWebDav.kt | 8 ++++++++
 app/src/main/java/io/legado/app/help/storage/Backup.kt    | 3 +--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt b/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
index 813671bec..74c8accf0 100644
--- a/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
+++ b/app/src/main/java/io/legado/app/help/storage/AppWebDav.kt
@@ -130,6 +130,14 @@ object AppWebDav {
         }
     }
 
+    suspend fun hasBackUp(): Boolean {
+        authorization?.let {
+            val url = "${rootWebDavUrl}${backupFileName}"
+            return WebDav(url, it).exists()
+        }
+        return false
+    }
+
     suspend fun lastBackUp(): WebDavFile? {
         authorization?.let {
             var lastBackupFile: WebDavFile? = null
diff --git a/app/src/main/java/io/legado/app/help/storage/Backup.kt b/app/src/main/java/io/legado/app/help/storage/Backup.kt
index 02d66d420..6cfe2a562 100644
--- a/app/src/main/java/io/legado/app/help/storage/Backup.kt
+++ b/app/src/main/java/io/legado/app/help/storage/Backup.kt
@@ -51,8 +51,7 @@ object Backup {
         val lastBackup = LocalConfig.lastBackup
         if (lastBackup + TimeUnit.DAYS.toMillis(1) < System.currentTimeMillis()) {
             Coroutine.async {
-                val lastBackupWebDav = AppWebDav.lastBackUp()
-                if (lastBackupWebDav == null || lastBackup > lastBackupWebDav.lastModify.time) {
+                if (!AppWebDav.hasBackUp()) {
                     backup(context, context.getPrefString(PreferKey.backupPath), true)
                 } else {
                     LocalConfig.lastBackup = System.currentTimeMillis()