Merge of r4616: r->state fix.

Added r->state reset on fastcgi/scgi/uwsgi request start.

Failing to do so results in problems if 400 or 414 requests are
redirected to fastcgi/scgi/uwsgi upstream, as well as after invalid
headers got from upstream.  This was already fixed for proxy in r3478,
but fastcgi (the only affected protocol at that time) was missed.

Reported by Matthieu Tourne.

3 files changed, 7 insertions, 0 deletions

diff --git a/src/http/modules/ngx_http_fastcgi_module.c b/src/http/modules/ngx_http_fastcgi_module.c
index 3bc994a80..65f0747a1 100644
--- a/src/http/modules/ngx_http_fastcgi_module.c
+++ b/src/http/modules/ngx_http_fastcgi_module.c
@@ -619,6 +619,7 @@ ngx_http_fastcgi_handler(ngx_http_request_t *r)
     u->process_header = ngx_http_fastcgi_process_header;
     u->abort_request = ngx_http_fastcgi_abort_request;
     u->finalize_request = ngx_http_fastcgi_finalize_request;
+    r->state = 0;
 
     u->buffering = 1;
 
@@ -1194,6 +1195,8 @@ ngx_http_fastcgi_reinit_request(ngx_http_request_t *r)
     f->fastcgi_stdout = 0;
     f->large_stderr = 0;
 
+    r->state = 0;
+
     return NGX_OK;
 }
 
diff --git a/src/http/modules/ngx_http_scgi_module.c b/src/http/modules/ngx_http_scgi_module.c
index 239da6b94..bf0cb8a9c 100644
--- a/src/http/modules/ngx_http_scgi_module.c
+++ b/src/http/modules/ngx_http_scgi_module.c
@@ -434,6 +434,7 @@ ngx_http_scgi_handler(ngx_http_request_t *r)
     u->process_header = ngx_http_scgi_process_status_line;
     u->abort_request = ngx_http_scgi_abort_request;
     u->finalize_request = ngx_http_scgi_finalize_request;
+    r->state = 0;
 
     u->buffering = scf->upstream.buffering;
 
@@ -843,6 +844,7 @@ ngx_http_scgi_reinit_request(ngx_http_request_t *r)
     status->end = NULL;
 
     r->upstream->process_header = ngx_http_scgi_process_status_line;
+    r->state = 0;
 
     return NGX_OK;
 }
diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
index 0c999ca62..ef8994c52 100644
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -467,6 +467,7 @@ ngx_http_uwsgi_handler(ngx_http_request_t *r)
     u->process_header = ngx_http_uwsgi_process_status_line;
     u->abort_request = ngx_http_uwsgi_abort_request;
     u->finalize_request = ngx_http_uwsgi_finalize_request;
+    r->state = 0;
 
     u->buffering = uwcf->upstream.buffering;
 
@@ -883,6 +884,7 @@ ngx_http_uwsgi_reinit_request(ngx_http_request_t *r)
     status->end = NULL;
 
     r->upstream->process_header = ngx_http_uwsgi_process_status_line;
+    r->state = 0;
 
     return NGX_OK;
 }