From 2a19d9c36c318f6ee81a5b902f10963967c6c155 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=92=9F=E9=93=BF?= <zhongkeng@hytto.com>
Date: Wed, 14 Aug 2024 15:01:46 +0800
Subject: [PATCH] fix a crash bug when image url is unavailable

---
 SDWebImage/Core/SDDiskCache.m | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/SDWebImage/Core/SDDiskCache.m b/SDWebImage/Core/SDDiskCache.m
index 82eb0d6b..28946f90 100644
--- a/SDWebImage/Core/SDDiskCache.m
+++ b/SDWebImage/Core/SDDiskCache.m
@@ -64,6 +64,11 @@ static NSString * const SDDiskCacheExtendedAttributeName = @"com.hackemist.SDDis
 - (NSData *)dataForKey:(NSString *)key {
     NSParameterAssert(key);
     NSString *filePath = [self cachePathForKey:key];
+    // if filePath is nil or (null)，framework will crash with this：
+    // Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[_NSPlaceholderData initWithContentsOfFile:options:maxLength:error:]: nil file argument'
+    if (filePath == nil || [@"(null)" isEqualToString: filePath]) {
+        return nil;
+    }
     NSData *data = [NSData dataWithContentsOfFile:filePath options:self.config.diskCacheReadingOptions error:nil];
     if (data) {
         return data;