gh-100001: Also escape \s in http.server log messages. (GH-100038)

Also \ escape \s in the http.server BaseHTTPRequestHandler.log_message so
that it is technically possible to parse the line and reconstruct what the
original data was.  Without this a \xHH is ambiguious as to if it is a hex
replacement we put in or the characters r"\x" came through in the original
request line.
(cherry picked from commit 7e29398407dbd53b714702abb89aa2fd7baca48a)

Co-authored-by: Gregory P. Smith <greg@krypto.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/Lib/test/test_httpservers.py b/Lib/test/test_httpservers.py
index 34e0e35483..ac8da494e9 100644
--- a/Lib/test/test_httpservers.py
+++ b/Lib/test/test_httpservers.py
@@ -994,6 +994,7 @@ class BaseHTTPRequestHandlerTestCase(unittest.TestCase):
             log_message(self.handler, '/\033bar\000\033')
             log_message(self.handler, '/spam %s.', 'a')
             log_message(self.handler, '/spam %s.', '\033\x7f\x9f\xa0beans')
+            log_message(self.handler, '"GET /foo\\b"ar\007 HTTP/1.0"')
         stderr = fake_stderr.getvalue()
         self.assertNotIn('\033', stderr)  # non-printable chars are caught.
         self.assertNotIn('\000', stderr)  # non-printable chars are caught.
@@ -1002,6 +1003,7 @@ class BaseHTTPRequestHandlerTestCase(unittest.TestCase):
         self.assertIn(r'/\x1bbar\x00\x1b', lines[1])
         self.assertIn('/spam a.', lines[2])
         self.assertIn('/spam \\x1b\\x7f\\x9f\xa0beans.', lines[3])
+        self.assertIn(r'"GET /foo\\b"ar\x07 HTTP/1.0"', lines[4])
 
     def test_http_1_1(self):
         result = self.send_typical_request(b'GET / HTTP/1.1\r\n\r\n')