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/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#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 flushed:1;
unsigned skip:1;
unsigned quote:1;
unsigned is_args:1;
unsigned log:1;
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 **flushes;
ngx_array_t **lengths;
ngx_array_t **values;
ngx_uint_t variables;
ngx_uint_t ncaptures;
ngx_uint_t captures_mask;
ngx_uint_t size;
void *main;
unsigned compile_args:1;
unsigned complete_lengths:1;
unsigned complete_values:1;
unsigned zero:1;
unsigned conf_prefix:1;
unsigned root_prefix:1;
unsigned dup_capture:1;
unsigned args:1;
} ngx_http_script_compile_t;
typedef struct {
ngx_str_t value;
ngx_uint_t *flushes;
void *lengths;
void *values;
} ngx_http_complex_value_t;
typedef struct {
ngx_conf_t *cf;
ngx_str_t *value;
ngx_http_complex_value_t *complex_value;
unsigned zero:1;
unsigned conf_prefix:1;
unsigned root_prefix:1;
} ngx_http_compile_complex_value_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;
ngx_http_set_variable_pt handler;
uintptr_t data;
} ngx_http_script_var_handler_code_t;
typedef struct {
ngx_http_script_code_pt code;
uintptr_t n;
} ngx_http_script_copy_capture_code_t;
#if (NGX_PCRE)
typedef struct {
ngx_http_script_code_pt code;
ngx_http_regex_t *regex;
ngx_array_t *lengths;
uintptr_t size;
uintptr_t status;
uintptr_t next;
unsigned test:1;
unsigned negative_test:1;
unsigned uri:1;
unsigned args:1;
/* add the r->args to the new arguments */
unsigned add_args:1;
unsigned redirect:1;
unsigned break_cycle:1;
ngx_str_t name;
} ngx_http_script_regex_code_t;
typedef struct {
ngx_http_script_code_pt code;
unsigned uri:1;
unsigned args:1;
/* add the r->args to the new arguments */
unsigned add_args:1;
unsigned redirect:1;
} ngx_http_script_regex_end_code_t;
#endif
typedef struct {
ngx_http_script_code_pt code;
uintptr_t conf_prefix;
} ngx_http_script_full_name_code_t;
typedef struct {
ngx_http_script_code_pt code;
uintptr_t status;
ngx_http_complex_value_t text;
} ngx_http_script_return_code_t;
typedef enum {
ngx_http_script_file_plain = 0,
ngx_http_script_file_not_plain,
ngx_http_script_file_dir,
ngx_http_script_file_not_dir,
ngx_http_script_file_exists,
ngx_http_script_file_not_exists,
ngx_http_script_file_exec,
ngx_http_script_file_not_exec
} ngx_http_script_file_op_e;
typedef struct {
ngx_http_script_code_pt code;
uintptr_t op;
} ngx_http_script_file_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;
ngx_array_t *lengths;
} ngx_http_script_complex_value_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;
void ngx_http_script_flush_complex_value(ngx_http_request_t *r,
ngx_http_complex_value_t *val);
ngx_int_t ngx_http_complex_value(ngx_http_request_t *r,
ngx_http_complex_value_t *val, ngx_str_t *value);
ngx_int_t ngx_http_compile_complex_value(ngx_http_compile_complex_value_t *ccv);
char *ngx_http_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
ngx_int_t ngx_http_test_predicates(ngx_http_request_t *r,
ngx_array_t *predicates);
char *ngx_http_set_predicate_slot(ngx_conf_t *cf, ngx_command_t *cmd,
void *conf);
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);
u_char *ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
void *code_lengths, size_t reserved, void *code_values);
void ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r,
ngx_array_t *indices);
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);
size_t ngx_http_script_mark_args_code(ngx_http_script_engine_t *e);
void ngx_http_script_start_args_code(ngx_http_script_engine_t *e);
#if (NGX_PCRE)
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);
#endif
void ngx_http_script_return_code(ngx_http_script_engine_t *e);
void ngx_http_script_break_code(ngx_http_script_engine_t *e);
void ngx_http_script_if_code(ngx_http_script_engine_t *e);
void ngx_http_script_equal_code(ngx_http_script_engine_t *e);
void ngx_http_script_not_equal_code(ngx_http_script_engine_t *e);
void ngx_http_script_file_code(ngx_http_script_engine_t *e);
void ngx_http_script_complex_value_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_set_handler_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_ */
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