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view src/http/ngx_http_script.h @ 509:9b8c906f6e63 release-0.1.29

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nginx-0.1.29-RELEASE import *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; the bug had appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 12 May 2005 14:58:06 +0000
parents cd3117ad9aab
children 417a087c9c4d
line wrap: on
line source


/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_HTTP_SCRIPT_H_INCLUDED_
#define _NGX_HTTP_SCRIPT_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


typedef struct {
    u_char                         *ip;
    u_char                         *pos;
    ngx_http_variable_value_t      *sp;

    ngx_str_t                       buf;
    ngx_str_t                      *line;

    /* the start of the rewritten arguments */
    u_char                         *args;

    unsigned                        skip:1;
    unsigned                        quote:1;
    unsigned                        log:1;

    int                            *captures;

    ngx_int_t                       status;
    ngx_http_request_t             *request;
} ngx_http_script_engine_t;


typedef struct {
    ngx_conf_t                     *cf;
    ngx_str_t                      *source;
    ngx_array_t                   **lengths;
    ngx_array_t                   **values;

    ngx_uint_t                      variables;
    ngx_uint_t                      ncaptures;
    ngx_uint_t                      size;

    void                           *main;

    unsigned                        compile_args:1;
    unsigned                        compile_null:1;
    unsigned                        complete_lengths:1;
    unsigned                        complete_values:1;

    unsigned                        args:1;
} ngx_http_script_compile_t;


typedef void (*ngx_http_script_code_pt) (ngx_http_script_engine_t *e);
typedef size_t (*ngx_http_script_len_code_pt) (ngx_http_script_engine_t *e);


typedef struct {
    ngx_http_script_code_pt         code;
    uintptr_t                       len;
} ngx_http_script_copy_code_t;


typedef struct {
    ngx_http_script_code_pt         code;
    uintptr_t                       index;
} ngx_http_script_var_code_t;


typedef struct {
    ngx_http_script_code_pt          code;
    uintptr_t                        n;
} ngx_http_script_copy_capture_code_t;


typedef struct {
    ngx_http_script_code_pt          code;
    ngx_regex_t                     *regex;
    ngx_array_t                     *lengths;
    uintptr_t                        size;
    uintptr_t                        ncaptures;
    uintptr_t                        status;
    uintptr_t                        next;

    uintptr_t                        test:1;
    uintptr_t                        uri:1;
    uintptr_t                        args:1;

    /* add the r->args to the new arguments */
    uintptr_t                        add_args:1;
    
    uintptr_t                        redirect:1;
    uintptr_t                        break_cycle:1;

    ngx_str_t                        name;
} ngx_http_script_regex_code_t;


typedef struct {
    ngx_http_script_code_pt          code;

    uintptr_t                        uri:1;
    uintptr_t                        args:1;

    /* add the r->args to the new arguments */
    uintptr_t                        add_args:1;

    uintptr_t                        redirect:1;
} ngx_http_script_regex_end_code_t;


typedef struct {
    ngx_http_script_code_pt          code;
    uintptr_t                        status;
    uintptr_t                        null;
} ngx_http_script_return_code_t;


typedef struct {
    ngx_http_script_code_pt          code;
    uintptr_t                        next;
    void                           **loc_conf;
} ngx_http_script_if_code_t;


typedef struct {
    ngx_http_script_code_pt          code;
    uintptr_t                        value;
    uintptr_t                        text_len;
    uintptr_t                        text_data;
} ngx_http_script_value_code_t;


ngx_uint_t ngx_http_script_variables_count(ngx_str_t *value);
ngx_int_t ngx_http_script_compile(ngx_http_script_compile_t *sc);

void *ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes,
    size_t size);
void *ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code);

size_t ngx_http_script_copy_len_code(ngx_http_script_engine_t *e);
void ngx_http_script_copy_code(ngx_http_script_engine_t *e);
size_t ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e);
void ngx_http_script_copy_var_code(ngx_http_script_engine_t *e);
size_t ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e);
void ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e);
void ngx_http_script_regex_start_code(ngx_http_script_engine_t *e);
void ngx_http_script_regex_end_code(ngx_http_script_engine_t *e);
void ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e);
void ngx_http_script_start_args_code(ngx_http_script_engine_t *e);
void ngx_http_script_return_code(ngx_http_script_engine_t *e);
void ngx_http_script_if_code(ngx_http_script_engine_t *e);
void ngx_http_script_value_code(ngx_http_script_engine_t *e);
void ngx_http_script_set_var_code(ngx_http_script_engine_t *e);
void ngx_http_script_var_code(ngx_http_script_engine_t *e);
void ngx_http_script_nop_code(ngx_http_script_engine_t *e);


#endif /* _NGX_HTTP_SCRIPT_H_INCLUDED_ */