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From 95f873ff983a1ae57415b3c16a881e74432cf8b8 Mon Sep 17 00:00:00 2001
From: Fabian Keil <fk@fabiankeil.de>
Date: Tue, 9 Feb 2021 14:04:32 +0100
Subject: [PATCH 1/2] runtests.pl: support the nonewline attribute for the data
 part

Closes #8239

Upstream-commit: 736847611a40c01e7c290407e22e2f0f5f8efd6a
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
 tests/runtests.pl      |  7 +++++++
 tests/server/getpart.c | 11 ++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 40315aa..2e1500d 100755
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -3817,6 +3817,13 @@ sub singletest {
     else {
         # check against the data section
         @reply = getpart("reply", "data");
+        if(@reply) {
+            my %hash = getpartattr("reply", "data");
+            if($hash{'nonewline'}) {
+                # cut off the final newline from the final line of the data
+                chomp($reply[$#reply]);
+            }
+        }
         # get the mode attribute
         my $filemode=$replyattr{'mode'};
         if($filemode && ($filemode eq "text") && $has_textaware) {
diff --git a/tests/server/getpart.c b/tests/server/getpart.c
index 32b55bc..f8fe3f6 100644
--- a/tests/server/getpart.c
+++ b/tests/server/getpart.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -295,6 +295,7 @@ int getpart(char **outbuf, size_t *outlen,
   size_t outalloc = 256;
   int in_wanted_part = 0;
   int base64 = 0;
+  int nonewline = 0;
   int error;
 
   enum {
@@ -360,6 +361,8 @@ int getpart(char **outbuf, size_t *outlen,
             if(error)
               return error;
           }
+          if(nonewline)
+            (*outlen)--;
           break;
         }
       }
@@ -377,6 +380,8 @@ int getpart(char **outbuf, size_t *outlen,
             if(error)
               return error;
           }
+          if(nonewline)
+            (*outlen)--;
           break;
         }
       }
@@ -451,6 +456,10 @@ int getpart(char **outbuf, size_t *outlen,
               /* bit rough test, but "mostly" functional, */
               /* treat wanted part data as base64 encoded */
               base64 = 1;
+          if(strstr(patt, "nonewline=")) {
+            show(("* setting nonewline\n"));
+            nonewline = 1;
+          }
         }
         continue;
       }
-- 
2.39.1


From bc5fc958b017895728962c9d44c469418cbec1a0 Mon Sep 17 00:00:00 2001
From: Patrick Monnerat <patrick@monnerat.net>
Date: Mon, 13 Feb 2023 08:33:09 +0100
Subject: [PATCH 2/2] content_encoding: do not reset stage counter for each
 header

Test 418 verifies

Closes #10492

Upstream-commit: 119fb187192a9ea13dc90d9d20c215fc82799ab9
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
 lib/content_encoding.c  |   7 +-
 lib/urldata.h           |   1 +
 tests/data/Makefile.inc |   1 +
 tests/data/test387      |   2 +-
 tests/data/test418      | 152 ++++++++++++++++++++++++++++++++++++++++
 5 files changed, 158 insertions(+), 5 deletions(-)
 create mode 100644 tests/data/test418

diff --git a/lib/content_encoding.c b/lib/content_encoding.c
index bfc13e2..94344d6 100644
--- a/lib/content_encoding.c
+++ b/lib/content_encoding.c
@@ -944,7 +944,6 @@ CURLcode Curl_build_unencoding_stack(struct connectdata *conn,
 {
   struct Curl_easy *data = conn->data;
   struct SingleRequest *k = &data->req;
-  int counter = 0;
 
   do {
     const char *name;
@@ -979,9 +978,9 @@ CURLcode Curl_build_unencoding_stack(struct connectdata *conn,
       if(!encoding)
         encoding = &error_encoding;  /* Defer error at stack use. */
 
-      if(++counter >= MAX_ENCODE_STACK) {
-        failf(data, "Reject response due to %u content encodings",
-              counter);
+      if(k->writer_stack_depth++ >= MAX_ENCODE_STACK) {
+        failf(data, "Reject response due to more than %u content encodings",
+              MAX_ENCODE_STACK);
         return CURLE_BAD_CONTENT_ENCODING;
       }
       /* Stack the unencoding stage. */
diff --git a/lib/urldata.h b/lib/urldata.h
index 5b4b34f..8c8c20b 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -539,6 +539,7 @@ struct SingleRequest {
 
   struct curltime start;         /* transfer started at this time */
   struct curltime now;           /* current time */
+  unsigned char writer_stack_depth; /* Unencoding stack depth. */
   bool header;                  /* incoming data has HTTP header */
   enum {
     HEADER_NORMAL,              /* no bad header at all */
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index fb51cd6..86b6f85 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -66,6 +66,7 @@ test393 test394 test395 \
 \
 test400 test401 test402 test403 test404 test405 test406 test407 test408 \
 test409 \
+test418 \
 \
 test500 test501 test502 test503 test504 test505 test506 test507 test508 \
 test509 test510 test511 test512 test513 test514 test515 test516 test517 \
diff --git a/tests/data/test387 b/tests/data/test387
index 015ec25..644fc7f 100644
--- a/tests/data/test387
+++ b/tests/data/test387
@@ -47,7 +47,7 @@ Accept: */*
 61
 </errorcode>
 <stderr mode="text">
-curl: (61) Reject response due to 5 content encodings
+curl: (61) Reject response due to more than 5 content encodings
 </stderr>
 </verify>
 </testcase>
diff --git a/tests/data/test418 b/tests/data/test418
new file mode 100644
index 0000000..50e974e
--- /dev/null
+++ b/tests/data/test418
@@ -0,0 +1,152 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+gzip
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data nocheck="yes">
+HTTP/1.1 200 OK
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+Transfer-Encoding: gzip
+
+-foo-
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+http
+</server>
+ <name>
+Response with multiple Transfer-Encoding headers
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/%TESTNUMBER -sS
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+GET /%TESTNUMBER HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+User-Agent: curl/7.61.1
+Accept: */*
+
+</protocol>
+
+# CURLE_BAD_CONTENT_ENCODING is 61
+<errorcode>
+61
+</errorcode>
+<stderr mode="text">
+curl: (61) Reject response due to more than 5 content encodings
+</stderr>
+</verify>
+</testcase>
-- 
2.39.1