release/src/router/nginx/src/http/ngx_http_script.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #ifndef _NGX_HTTP_SCRIPT_H_INCLUDED_
   9 #define _NGX_HTTP_SCRIPT_H_INCLUDED_
  10
  11
  12 #include <ngx_config.h>
  13 #include <ngx_core.h>
  14 #include <ngx_http.h>
  15
  16
  17 typedef struct {
  18     u_char                     *ip;
  19     u_char                     *pos;
  20     ngx_http_variable_value_t  *sp;
  21
  22     ngx_str_t                   buf;
  23     ngx_str_t                   line;
  24
  25     /* the start of the rewritten arguments */
  26     u_char                     *args;
  27
  28     unsigned                    flushed:1;
  29     unsigned                    skip:1;
  30     unsigned                    quote:1;
  31     unsigned                    is_args:1;
  32     unsigned                    log:1;
  33
  34     ngx_int_t                   status;
  35     ngx_http_request_t         *request;
  36 } ngx_http_script_engine_t;
  37
  38
  39 typedef struct {
  40     ngx_conf_t                 *cf;
  41     ngx_str_t                  *source;
  42
  43     ngx_array_t               **flushes;
  44     ngx_array_t               **lengths;
  45     ngx_array_t               **values;
  46
  47     ngx_uint_t                  variables;
  48     ngx_uint_t                  ncaptures;
  49     ngx_uint_t                  captures_mask;
  50     ngx_uint_t                  size;
  51
  52     void                       *main;
  53
  54     unsigned                    compile_args:1;
  55     unsigned                    complete_lengths:1;
  56     unsigned                    complete_values:1;
  57     unsigned                    zero:1;
  58     unsigned                    conf_prefix:1;
  59     unsigned                    root_prefix:1;
  60
  61     unsigned                    dup_capture:1;
  62     unsigned                    args:1;
  63 } ngx_http_script_compile_t;
  64
  65
  66 typedef struct {
  67     ngx_str_t                   value;
  68     ngx_uint_t                 *flushes;
  69     void                       *lengths;
  70     void                       *values;
  71 } ngx_http_complex_value_t;
  72
  73
  74 typedef struct {
  75     ngx_conf_t                 *cf;
  76     ngx_str_t                  *value;
  77     ngx_http_complex_value_t   *complex_value;
  78
  79     unsigned                    zero:1;
  80     unsigned                    conf_prefix:1;
  81     unsigned                    root_prefix:1;
  82 } ngx_http_compile_complex_value_t;
  83
  84
  85 typedef void (*ngx_http_script_code_pt) (ngx_http_script_engine_t *e);
  86 typedef size_t (*ngx_http_script_len_code_pt) (ngx_http_script_engine_t *e);
  87
  88
  89 typedef struct {
  90     ngx_http_script_code_pt     code;
  91     uintptr_t                   len;
  92 } ngx_http_script_copy_code_t;
  93
  94
  95 typedef struct {
  96     ngx_http_script_code_pt     code;
  97     uintptr_t                   index;
  98 } ngx_http_script_var_code_t;
  99
 100
 101 typedef struct {
 102     ngx_http_script_code_pt     code;
 103     ngx_http_set_variable_pt    handler;
 104     uintptr_t                   data;
 105 } ngx_http_script_var_handler_code_t;
 106
 107
 108 typedef struct {
 109     ngx_http_script_code_pt     code;
 110     uintptr_t                   n;
 111 } ngx_http_script_copy_capture_code_t;
 112
 113
 114 #if (NGX_PCRE)
 115
 116 typedef struct {
 117     ngx_http_script_code_pt     code;
 118     ngx_http_regex_t           *regex;
 119     ngx_array_t                *lengths;
 120     uintptr_t                   size;
 121     uintptr_t                   status;
 122     uintptr_t                   next;
 123
 124     uintptr_t                   test:1;
 125     uintptr_t                   negative_test:1;
 126     uintptr_t                   uri:1;
 127     uintptr_t                   args:1;
 128
 129     /* add the r->args to the new arguments */
 130     uintptr_t                   add_args:1;
 131
 132     uintptr_t                   redirect:1;
 133     uintptr_t                   break_cycle:1;
 134
 135     ngx_str_t                   name;
 136 } ngx_http_script_regex_code_t;
 137
 138
 139 typedef struct {
 140     ngx_http_script_code_pt     code;
 141
 142     uintptr_t                   uri:1;
 143     uintptr_t                   args:1;
 144
 145     /* add the r->args to the new arguments */
 146     uintptr_t                   add_args:1;
 147
 148     uintptr_t                   redirect:1;
 149 } ngx_http_script_regex_end_code_t;
 150
 151 #endif
 152
 153
 154 typedef struct {
 155     ngx_http_script_code_pt     code;
 156     uintptr_t                   conf_prefix;
 157 } ngx_http_script_full_name_code_t;
 158
 159
 160 typedef struct {
 161     ngx_http_script_code_pt     code;
 162     uintptr_t                   status;
 163     ngx_http_complex_value_t    text;
 164 } ngx_http_script_return_code_t;
 165
 166
 167 typedef enum {
 168     ngx_http_script_file_plain = 0,
 169     ngx_http_script_file_not_plain,
 170     ngx_http_script_file_dir,
 171     ngx_http_script_file_not_dir,
 172     ngx_http_script_file_exists,
 173     ngx_http_script_file_not_exists,
 174     ngx_http_script_file_exec,
 175     ngx_http_script_file_not_exec
 176 } ngx_http_script_file_op_e;
 177
 178
 179 typedef struct {
 180     ngx_http_script_code_pt     code;
 181     uintptr_t                   op;
 182 } ngx_http_script_file_code_t;
 183
 184
 185 typedef struct {
 186     ngx_http_script_code_pt     code;
 187     uintptr_t                   next;
 188     void                      **loc_conf;
 189 } ngx_http_script_if_code_t;
 190
 191
 192 typedef struct {
 193     ngx_http_script_code_pt     code;
 194     ngx_array_t                *lengths;
 195 } ngx_http_script_complex_value_code_t;
 196
 197
 198 typedef struct {
 199     ngx_http_script_code_pt     code;
 200     uintptr_t                   value;
 201     uintptr_t                   text_len;
 202     uintptr_t                   text_data;
 203 } ngx_http_script_value_code_t;
 204
 205
 206 void ngx_http_script_flush_complex_value(ngx_http_request_t *r,
 207     ngx_http_complex_value_t *val);
 208 ngx_int_t ngx_http_complex_value(ngx_http_request_t *r,
 209     ngx_http_complex_value_t *val, ngx_str_t *value);
 210 ngx_int_t ngx_http_compile_complex_value(ngx_http_compile_complex_value_t *ccv);
 211 char *ngx_http_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd,
 212     void *conf);
 213
 214
 215 ngx_int_t ngx_http_test_predicates(ngx_http_request_t *r,
 216     ngx_array_t *predicates);
 217 char *ngx_http_set_predicate_slot(ngx_conf_t *cf, ngx_command_t *cmd,
 218     void *conf);
 219
 220 ngx_uint_t ngx_http_script_variables_count(ngx_str_t *value);
 221 ngx_int_t ngx_http_script_compile(ngx_http_script_compile_t *sc);
 222 u_char *ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value,
 223     void *code_lengths, size_t reserved, void *code_values);
 224 void ngx_http_script_flush_no_cacheable_variables(ngx_http_request_t *r,
 225     ngx_array_t *indices);
 226
 227 void *ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes,
 228     size_t size);
 229 void *ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code);
 230
 231 size_t ngx_http_script_copy_len_code(ngx_http_script_engine_t *e);
 232 void ngx_http_script_copy_code(ngx_http_script_engine_t *e);
 233 size_t ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e);
 234 void ngx_http_script_copy_var_code(ngx_http_script_engine_t *e);
 235 size_t ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e);
 236 void ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e);
 237 size_t ngx_http_script_mark_args_code(ngx_http_script_engine_t *e);
 238 void ngx_http_script_start_args_code(ngx_http_script_engine_t *e);
 239 #if (NGX_PCRE)
 240 void ngx_http_script_regex_start_code(ngx_http_script_engine_t *e);
 241 void ngx_http_script_regex_end_code(ngx_http_script_engine_t *e);
 242 #endif
 243 void ngx_http_script_return_code(ngx_http_script_engine_t *e);
 244 void ngx_http_script_break_code(ngx_http_script_engine_t *e);
 245 void ngx_http_script_if_code(ngx_http_script_engine_t *e);
 246 void ngx_http_script_equal_code(ngx_http_script_engine_t *e);
 247 void ngx_http_script_not_equal_code(ngx_http_script_engine_t *e);
 248 void ngx_http_script_file_code(ngx_http_script_engine_t *e);
 249 void ngx_http_script_complex_value_code(ngx_http_script_engine_t *e);
 250 void ngx_http_script_value_code(ngx_http_script_engine_t *e);
 251 void ngx_http_script_set_var_code(ngx_http_script_engine_t *e);
 252 void ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e);
 253 void ngx_http_script_var_code(ngx_http_script_engine_t *e);
 254 void ngx_http_script_nop_code(ngx_http_script_engine_t *e);
 255
 256
 257 #endif /* _NGX_HTTP_SCRIPT_H_INCLUDED_ */