[core] support Transfer-Encoding: chunked req body (fixes #2156)

support Transfer-Encoding: chunked request body in conjunction with
  server.stream-request-body = 0

dynamic handlers will still return 411 Length Required if
  server.stream-request-body = 1 or 2 (!= 0)
  since CGI-like env requires CONTENT_LENGTH be set
  (and mod_proxy currently sends HTTP/1.0 requests to backends,
   and Content-Length recommended for robust interaction with backend)

x-ref:
  "request: support Chunked Transfer Coding for HTTP PUT"
  https://redmine.lighttpd.net/issues/2156

1 files changed, 116 insertions, 1 deletions

diff --git a/tests/request.t b/tests/request.t
index a1ff4db0..a073a7c1 100755
--- a/tests/request.t
+++ b/tests/request.t
@@ -8,7 +8,7 @@ BEGIN {
 
 use strict;
 use IO::Socket;
-use Test::More tests => 52;
+use Test::More tests => 59;
 use LightyTest;
 
 my $tf = LightyTest->new();
@@ -119,6 +119,121 @@ EOF
 $t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 417 } ];
 ok($tf->handle_http($t) == 0, 'Continue, Expect');
 
+# note Transfer-Encoding: chunked tests will fail with 411 Length Required if
+#   server.stream-request-body != 0 in lighttpd.conf
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+a
+0123456789
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 200 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked, lc hex');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+A
+0123456789
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 200 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked, uc hex');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+a
+0123456789
+0
+Test-Trailer: testing
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 200 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked, with trailer');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+a; comment
+0123456789
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 200 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked, chunked header comment');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+az
+0123456789
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 400 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked; bad chunked header');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+a
+0123456789xxxxxxxx
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 400 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked; mismatch chunked header size and chunked data size');
+
+$t->{REQUEST}  = ( <<EOF
+POST /get-post-len.pl HTTP/1.1
+Host: www.example.org
+Connection: close
+Content-Type: application/x-www-form-urlencoded
+Transfer-Encoding: chunked
+
+a ; xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+0123456789
+0
+
+EOF
+ );
+$t->{RESPONSE} = [ { 'HTTP-Protocol' => 'HTTP/1.1', 'HTTP-Status' => 400 } ];
+ok($tf->handle_http($t) == 0, 'POST via Transfer-Encoding: chunked; chunked header too long');
+
 ## ranges
 
 $t->{REQUEST}  = ( <<EOF