ngx_int_t
ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
{
ngx_uint_t i, err;
ngx_http_err_page_t *err_page;
ngx_http_core_loc_conf_t *clcf;
ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http special response: %i, \"%V?%V\"",
error, &r->uri, &r->args);
r->err_status = error;
if (r->keepalive) {
switch (error) {
case NGX_HTTP_BAD_REQUEST:
case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:
case NGX_HTTP_REQUEST_URI_TOO_LARGE:
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
case NGX_HTTP_INTERNAL_SERVER_ERROR:
case NGX_HTTP_NOT_IMPLEMENTED:
r->keepalive = 0;
}
}
if (r->lingering_close) {
switch (error) {
case NGX_HTTP_BAD_REQUEST:
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
r->lingering_close = 0;
}
}
r->headers_out.content_type.len = 0;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (!r->error_page && clcf->error_pages && r->uri_changes != 0) {
if (clcf->recursive_error_pages == 0) {
r->error_page = 1;
}
err_page = clcf->error_pages->elts;
for (i = 0; i < clcf->error_pages->nelts; i++) {
if (err_page[i].status == error) {
return ngx_http_send_error_page(r, &err_page[i]);
}
}
}
r->expect_tested = 1;
if (ngx_http_discard_request_body(r) != NGX_OK) {
r->keepalive = 0;
}
if (clcf->msie_refresh
&& r->headers_in.msie
&& (error == NGX_HTTP_MOVED_PERMANENTLY
|| error == NGX_HTTP_MOVED_TEMPORARILY))
{
return ngx_http_send_refresh(r);
}
if (error == NGX_HTTP_CREATED) {
/* 201 */
err = 0;
} else if (error == NGX_HTTP_NO_CONTENT) {
/* 204 */
err = 0;
} else if (error >= NGX_HTTP_MOVED_PERMANENTLY
&& error < NGX_HTTP_LAST_3XX)
{
/* 3XX */
err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX;
} else if (error >= NGX_HTTP_BAD_REQUEST
&& error < NGX_HTTP_LAST_4XX)
{
/* 4XX */
err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_OFF_4XX;
} else if (error >= NGX_HTTP_NGINX_CODES
&& error < NGX_HTTP_LAST_5XX)
{
/* 49X, 5XX */
err = error - NGX_HTTP_NGINX_CODES + NGX_HTTP_OFF_5XX;
switch (error) {
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
case NGX_HTTP_REQUEST_HEADER_TOO_LARGE:
r->err_status = NGX_HTTP_BAD_REQUEST;
break;
}
} else {
/* unknown code, zero body */
err = 0;
}
return ngx_http_send_special_response(r, clcf, err);
}
ngx_int_t
ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
{
ngx_int_t rc;
ngx_uint_t i, err;
ngx_http_err_page_t *err_page;
ngx_http_core_loc_conf_t *clcf;
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http special response: %d, \"%V\"", error, &r->uri);
rc = ngx_http_discard_body(r);
if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
error = NGX_HTTP_INTERNAL_SERVER_ERROR;
}
r->err_status = error;
if (r->keepalive != 0) {
switch (error) {
case NGX_HTTP_BAD_REQUEST:
case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:
case NGX_HTTP_REQUEST_URI_TOO_LARGE:
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
case NGX_HTTP_INTERNAL_SERVER_ERROR:
r->keepalive = 0;
}
}
if (r->lingering_close == 1) {
switch (error) {
case NGX_HTTP_BAD_REQUEST:
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
r->lingering_close = 0;
}
}
r->headers_out.content_type.len = 0;
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
if (!r->error_page && clcf->error_pages) {
if (clcf->recursive_error_pages == 0) {
r->error_page = 1;
}
err_page = clcf->error_pages->elts;
for (i = 0; i < clcf->error_pages->nelts; i++) {
if (err_page[i].status == error) {
return ngx_http_send_error_page(r, &err_page[i]);
}
}
}
if (clcf->msie_refresh
&& r->headers_in.msie
&& (error == NGX_HTTP_MOVED_PERMANENTLY
|| error == NGX_HTTP_MOVED_TEMPORARILY))
{
return ngx_http_send_refresh(r);
}
if (error == NGX_HTTP_CREATED) {
/* 201 */
err = 0;
r->header_only = 1;
} else if (error == NGX_HTTP_NO_CONTENT) {
/* 204 */
err = 0;
} else if (error < NGX_HTTP_BAD_REQUEST) {
/* 3XX */
err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200;
} else if (error < NGX_HTTP_OWN_CODES) {
/* 4XX */
err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_LEVEL_200
+ NGX_HTTP_LEVEL_300;
} else {
/* 49X, 5XX */
err = error - NGX_HTTP_OWN_CODES + NGX_HTTP_LEVEL_200
+ NGX_HTTP_LEVEL_300
+ NGX_HTTP_LEVEL_400;
switch (error) {
case NGX_HTTP_TO_HTTPS:
case NGX_HTTPS_CERT_ERROR:
case NGX_HTTPS_NO_CERT:
r->err_status = NGX_HTTP_BAD_REQUEST;
break;
}
}
return ngx_http_send_special_response(r, clcf, err);
}
