From 5448268d5ce153c1c7437da07ace7afe74750191 Mon Sep 17 00:00:00 2001
From: ClosedPort22 <44864697+ClosedPort22@users.noreply.github.com>
Date: Tue, 8 Aug 2023 23:33:03 +0800
Subject: [PATCH] [downloader:http] close connection when file already exists
 (#3748)

---
 gallery_dl/downloader/http.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gallery_dl/downloader/http.py b/gallery_dl/downloader/http.py
index 4ec03983cb..30ac0016b8 100644
--- a/gallery_dl/downloader/http.py
+++ b/gallery_dl/downloader/http.py
@@ -225,6 +225,14 @@ def _download_impl(self, url, pathfmt):
                 pathfmt.build_path()
                 if pathfmt.exists():
                     pathfmt.temppath = ""
+                    # release the connection back to pool by explicitly
+                    # calling .close()
+                    # see https://requests.readthedocs.io/en/latest/user
+                    # /advanced/#body-content-workflow
+                    # when the image size is on the order of megabytes,
+                    # re-establishing a TLS connection will typically be faster
+                    # than consuming the whole response
+                    response.close()
                     return True
                 if self.part and metadata:
                     pathfmt.part_enable(self.partdir)
@@ -246,6 +254,7 @@ def _download_impl(self, url, pathfmt):
                 if self._adjust_extension(pathfmt, file_header) and \
                         pathfmt.exists():
                     pathfmt.temppath = ""
+                    response.close()
                     return True
 
             # set open mode