Guard against the receipt of empty paths

2017-08-01 16:08:00 -07:00
parent 2a248f6b55
commit 6781d97343
2 changed files with 17 additions and 0 deletions
@@ -190,6 +190,22 @@ NSString *const SSZipArchiveErrorDomain = @"SSZipArchiveErrorDomain";
        progressHandler:(void (^)(NSString *entry, unz_file_info zipInfo, long entryNumber, long total))progressHandler
      completionHandler:(void (^)(NSString *path, BOOL succeeded, NSError * __nullable error))completionHandler
 {
+    
+    // Guard against empty strings
+    if ([path length] == 0 || [destination length] == 0)
+    {
+        NSDictionary *userInfo = @{NSLocalizedDescriptionKey: @"received invalid argument(s)"};
+        NSError *err = [NSError errorWithDomain:SSZipArchiveErrorDomain code:SSZipArchiveErrorCodeInvalidArguments userInfo:userInfo];
+        if (error)
+        {
+            *error = err;
+        }
+        if (completionHandler)
+        {
+            completionHandler(nil, NO, err);
+        }
+    }
+    
    // Begin opening
    zipFile zip = unzOpen((const char*)[path fileSystemRepresentation]);
    if (zip == NULL)