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/*
* Copyright (c) 2010, FRiCKLE Piotr Sikora <info@frickle.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ngx_postgres_ddebug.h"
#include "ngx_postgres_module.h"
#include "ngx_postgres_rewrite.h"
ngx_int_t
ngx_postgres_rewrite(ngx_http_request_t *r,
ngx_postgres_rewrite_conf_t *pgrcf)
{
ngx_postgres_rewrite_t *rewrite;
ngx_uint_t i;
dd("entering");
if (pgrcf->methods_set & r->method) {
/* method-specific */
rewrite = pgrcf->methods->elts;
for (i = 0; i < pgrcf->methods->nelts; i++) {
if (rewrite[i].key & r->method) {
dd("returning status:%d", (int) rewrite[i].status);
return rewrite[i].status;
}
}
} else if (pgrcf->def) {
/* default */
dd("returning status:%d", (int) pgrcf->def->status);
return pgrcf->def->status;
}
dd("returning NGX_DECLINED");
return NGX_DECLINED;
}
ngx_int_t
ngx_postgres_rewrite_changes(ngx_http_request_t *r,
ngx_postgres_rewrite_conf_t *pgrcf)
{
ngx_postgres_ctx_t *pgctx;
dd("entering");
pgctx = ngx_http_get_module_ctx(r, ngx_postgres_module);
if ((pgrcf->key % 2 == 0) && (pgctx->var_affected == 0)) {
/* no_changes */
dd("returning");
return ngx_postgres_rewrite(r, pgrcf);
}
if ((pgrcf->key % 2 == 1) && (pgctx->var_affected > 0)) {
/* changes */
dd("returning");
return ngx_postgres_rewrite(r, pgrcf);
}
dd("returning NGX_DECLINED");
return NGX_DECLINED;
}
ngx_int_t
ngx_postgres_rewrite_rows(ngx_http_request_t *r,
ngx_postgres_rewrite_conf_t *pgrcf)
{
ngx_postgres_ctx_t *pgctx;
dd("entering");
pgctx = ngx_http_get_module_ctx(r, ngx_postgres_module);
if ((pgrcf->key % 2 == 0) && (pgctx->var_rows == 0)) {
/* no_rows */
dd("returning");
return ngx_postgres_rewrite(r, pgrcf);
}
if ((pgrcf->key % 2 == 1) && (pgctx->var_rows > 0)) {
/* rows */
dd("returning");
return ngx_postgres_rewrite(r, pgrcf);
}
dd("returning NGX_DECLINED");
return NGX_DECLINED;
}
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