tests: updated the test cases in t/020-subrequest.t to reflect the changes in nginx.

http/1.0 requests with transfer-encoding is not permitted since nginx 1.21.1

Author: xiaocang

t/020-subrequest.t

@@ -1161,7 +1161,7 @@ r%5B%5D=http%3A%2F%2Fajax.googleapis.com%3A80%2Fajax%2Flibs%2Fjquery%2F1.7.2%2Fj
 GET /main
 --- response_body
 status: 500
-body: 
+body:
 
 
 
@@ -1182,7 +1182,7 @@ body:
 GET /main
 --- response_body
 status: 500
-body: 
+body:
 
 
 
@@ -1487,7 +1487,7 @@ post subreq: rc=0, status=200
 
 --- response_body
 status: 200
-body: 
+body:
 truncated: true
 
 --- error_log
@@ -1609,7 +1609,7 @@ post subreq: rc=0, status=200
 
 --- response_body
 status: 200
-body: 
+body:
 truncated: true
 
 --- error_log
@@ -2082,7 +2082,7 @@ post subreq: rc=0, status=200
 
 --- response_body
 status: 200
-body: 
+body:
 truncated: true
 
 --- error_log
@@ -3000,6 +3000,8 @@ method: GET, uri: /foo, X: GET /bar HTTP/1.0
 0
 --- no_error_log
 [error]
+--- skip_nginx
+3: >= 1.21.1
 
 
 
@@ -3128,6 +3130,8 @@ method: POST, uri: /foo
 0
 --- no_error_log
 [error]
+--- skip_nginx
+3: >= 1.21.1
 
 
 
@@ -3259,6 +3263,8 @@ method: POST, uri: /foo
 0
 --- no_error_log
 [error]
+--- skip_nginx
+3: >= 1.21.1
 
 
 
@@ -3391,6 +3397,8 @@ method: POST, uri: /foo
 0
 --- no_error_log
 [error]
+--- skip_nginx
+3: >= 1.21.1
 
 
 
@@ -3410,3 +3418,107 @@ GET /lua
 --- error_code: 500
 --- error_log
 unsupported HTTP method: 10240
+
+
+
+=== TEST 82: bad requests with both Content-Length and Transfer-Encoding (nginx >= 1.21.1)
+--- http_config
+ upstream backend {
+ server unix:$TEST_NGINX_HTML_DIR/nginx.sock;
+ keepalive 32;
+ }
+
+ server {
+ listen unix:$TEST_NGINX_HTML_DIR/nginx.sock;
+
+ location / {
+ content_by_lua_block {
+ ngx.say("method: ", ngx.var.request_method,
+ ", uri: ", ngx.var.uri,
+ ", X: ", ngx.var.http_x)
+ }
+ }
+ }
+--- config
+ location /proxy {
+ proxy_http_version 1.1;
+ proxy_set_header Connection "";
+ proxy_pass http://backend/foo;
+ }
+
+ location /capture {
+ server_tokens off;
+ more_clear_headers Date;
+
+ content_by_lua_block {
+ local res = ngx.location.capture("/proxy")
+ ngx.print(res.body)
+ }
+ }
+
+ location /t {
+ content_by_lua_block {
+ local req = [[
+GET /capture HTTP/1.1
+Host: test.com
+Content-Length: 37
+Transfer-Encoding: chunked
+
+0
+
+GET /capture HTTP/1.1
+Host: test.com
+X: GET /bar HTTP/1.0
+
+]]
+
+ local sock = ngx.socket.tcp()
+ sock:settimeout(1000)
+
+ local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_SERVER_PORT)
+ if not ok then
+ ngx.say("failed to connect: ", err)
+ return
+ end
+
+ local bytes, err = sock:send(req)
+ if not bytes then
+ ngx.say("failed to send req: ", err)
+ return
+ end
+
+ ngx.say("req bytes: ", bytes)
+
+ local n_resp = 0
+
+ local reader = sock:receiveuntil("\r\n")
+ while true do
+ local line, err = reader()
+ if line then
+ ngx.say(line)
+ if line == "0" then
+ n_resp = n_resp + 1
+ end
+
+ if n_resp >= 2 then
+ break
+ end
+
+ else
+ ngx.say("err: ", err)
+ break
+ end
+ end
+
+ sock:close()
+ }
+ }
+--- request
+GET /t
+--- response_body_like
+req bytes: 146
+HTTP/1.1 400 Bad Request
+--- no_error_log
+[error]
+--- skip_nginx
+3: < 1.21.1