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#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ddebug.h"
#include "ngx_http_echo_util.h"
#include "ngx_http_echo_location.h"
#include "ngx_http_echo_handler.h"
#include <nginx.h>
static ngx_int_t ngx_http_echo_adjust_subrequest(ngx_http_request_t *sr);
ngx_int_t
ngx_http_echo_exec_echo_location_async(ngx_http_request_t *r,
ngx_http_echo_ctx_t *ctx, ngx_array_t *computed_args)
{
ngx_int_t rc;
ngx_http_request_t *sr; /* subrequest object */
ngx_str_t *computed_arg_elts;
ngx_str_t location;
ngx_str_t *url_args;
ngx_str_t args;
ngx_uint_t flags = 0;
dd_enter();
computed_arg_elts = computed_args->elts;
location = computed_arg_elts[0];
if (location.len == 0) {
return NGX_ERROR;
}
if (computed_args->nelts > 1) {
url_args = &computed_arg_elts[1];
} else {
url_args = NULL;
}
args.data = NULL;
args.len = 0;
if (ngx_http_parse_unsafe_uri(r, &location, &args, &flags) != NGX_OK) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"echo_location_async sees unsafe uri: \"%V\"",
&location);
return NGX_ERROR;
}
if (args.len > 0 && url_args == NULL) {
url_args = &args;
}
rc = ngx_http_echo_send_header_if_needed(r, ctx);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
rc = ngx_http_subrequest(r, &location, url_args, &sr, NULL, 0);
if (rc != NGX_OK) {
return NGX_ERROR;
}
rc = ngx_http_echo_adjust_subrequest(sr);
if (rc != NGX_OK) {
return NGX_ERROR;
}
return NGX_OK;
}
ngx_int_t
ngx_http_echo_exec_echo_location(ngx_http_request_t *r,
ngx_http_echo_ctx_t *ctx, ngx_array_t *computed_args)
{
ngx_int_t rc;
ngx_http_request_t *sr; /* subrequest object */
ngx_str_t *computed_arg_elts;
ngx_str_t location;
ngx_str_t *url_args;
ngx_http_post_subrequest_t *psr;
ngx_str_t args;
ngx_uint_t flags = 0;
ngx_http_echo_ctx_t *sr_ctx;
if (computed_args == NULL) {
return NGX_ERROR;
}
computed_arg_elts = computed_args->elts;
location = computed_arg_elts[0];
if (location.len == 0) {
return NGX_ERROR;
}
if (computed_args->nelts > 1) {
url_args = &computed_arg_elts[1];
} else {
url_args = NULL;
}
args.data = NULL;
args.len = 0;
if (ngx_http_parse_unsafe_uri(r, &location, &args, &flags) != NGX_OK) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"echo_location sees unsafe uri: \"%V\"",
&location);
return NGX_ERROR;
}
if (args.len > 0 && url_args == NULL) {
url_args = &args;
}
rc = ngx_http_echo_send_header_if_needed(r, ctx);
if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
return rc;
}
sr_ctx = ngx_http_echo_create_ctx(r);
psr = ngx_palloc(r->pool, sizeof(ngx_http_post_subrequest_t));
if (psr == NULL) {
return NGX_ERROR;
}
psr->handler = ngx_http_echo_post_subrequest;
psr->data = sr_ctx;
rc = ngx_http_subrequest(r, &location, url_args, &sr, psr, 0);
if (rc != NGX_OK) {
return NGX_ERROR;
}
rc = ngx_http_echo_adjust_subrequest(sr);
if (rc != NGX_OK) {
return NGX_ERROR;
}
return NGX_AGAIN;
}
static ngx_int_t
ngx_http_echo_adjust_subrequest(ngx_http_request_t *sr)
{
ngx_http_core_main_conf_t *cmcf;
ngx_http_request_t *r;
/* we do not inherit the parent request's variables */
cmcf = ngx_http_get_module_main_conf(sr, ngx_http_core_module);
r = sr->parent;
sr->header_in = r->header_in;
/* XXX work-around a bug in ngx_http_subrequest */
if (r->headers_in.headers.last == &r->headers_in.headers.part) {
sr->headers_in.headers.last = &sr->headers_in.headers.part;
}
sr->variables = ngx_pcalloc(sr->pool, cmcf->variables.nelts
* sizeof(ngx_http_variable_value_t));
if (sr->variables == NULL) {
return NGX_ERROR;
}
return NGX_OK;
}
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