优化

app/src/main/java/io/legado/app/lib/webdav/WebDav.kt

@@ -190,12 +190,13 @@ class WebDav(urlStr: String) {
         val url = httpUrl
         val auth = HttpAuth.auth
         if (url != null && auth != null) {
+            return kotlin.runCatching {
                 okHttpClient.newCall {
                     url(url)
                     put(fileBody)
                     addHeader("Authorization", Credentials.basic(auth.user, auth.pass))
                 }.close()
-            return true
+            }.isSuccess
         }
         return false
     }
@@ -206,12 +207,13 @@ class WebDav(urlStr: String) {
         val url = httpUrl
         val auth = HttpAuth.auth
         if (url != null && auth != null) {
+            return kotlin.runCatching {
                 okHttpClient.newCall {
                     url(url)
                     put(fileBody)
                     addHeader("Authorization", Credentials.basic(auth.user, auth.pass))
                 }.close()
-            return true
+            }.isSuccess
         }
         return false
     }
@@ -220,10 +222,12 @@ class WebDav(urlStr: String) {
         val url = httpUrl
         val auth = HttpAuth.auth
         if (url != null && auth != null) {
-            return okHttpClient.newCall {
+            return kotlin.runCatching {
+                okHttpClient.newCall {
                     url(url)
                     addHeader("Authorization", Credentials.basic(auth.user, auth.pass))
                 }.byteStream()
+            }.getOrNull()
         }
         return null
     }