Mercurial > hg > nginx
annotate src/stream/ngx_stream_script.c @ 7660:d33e17499088
Version bump.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 26 May 2020 22:03:00 +0300 |
| parents | b82162b8496a |
| children | bdd4d89370a7 |
| rev | line source |
|---|---|
| 6607 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_stream.h> | |
| 11 | |
| 12 | |
| 13 static ngx_int_t ngx_stream_script_init_arrays( | |
| 14 ngx_stream_script_compile_t *sc); | |
| 15 static ngx_int_t ngx_stream_script_done(ngx_stream_script_compile_t *sc); | |
| 16 static ngx_int_t ngx_stream_script_add_copy_code( | |
| 17 ngx_stream_script_compile_t *sc, ngx_str_t *value, ngx_uint_t last); | |
| 18 static ngx_int_t ngx_stream_script_add_var_code( | |
| 19 ngx_stream_script_compile_t *sc, ngx_str_t *name); | |
| 20 #if (NGX_PCRE) | |
| 21 static ngx_int_t ngx_stream_script_add_capture_code( | |
| 22 ngx_stream_script_compile_t *sc, ngx_uint_t n); | |
| 23 #endif | |
| 24 static ngx_int_t ngx_stream_script_add_full_name_code( | |
| 25 ngx_stream_script_compile_t *sc); | |
| 26 static size_t ngx_stream_script_full_name_len_code( | |
| 27 ngx_stream_script_engine_t *e); | |
| 28 static void ngx_stream_script_full_name_code(ngx_stream_script_engine_t *e); | |
| 29 | |
| 30 | |
| 31 #define ngx_stream_script_exit (u_char *) &ngx_stream_script_exit_code | |
| 32 | |
| 33 static uintptr_t ngx_stream_script_exit_code = (uintptr_t) NULL; | |
| 34 | |
| 35 | |
| 36 void | |
| 37 ngx_stream_script_flush_complex_value(ngx_stream_session_t *s, | |
| 38 ngx_stream_complex_value_t *val) | |
| 39 { | |
| 40 ngx_uint_t *index; | |
| 41 | |
| 42 index = val->flushes; | |
| 43 | |
| 44 if (index) { | |
| 45 while (*index != (ngx_uint_t) -1) { | |
| 46 | |
| 47 if (s->variables[*index].no_cacheable) { | |
| 48 s->variables[*index].valid = 0; | |
| 49 s->variables[*index].not_found = 0; | |
| 50 } | |
| 51 | |
| 52 index++; | |
| 53 } | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 | |
| 58 ngx_int_t | |
| 59 ngx_stream_complex_value(ngx_stream_session_t *s, | |
| 60 ngx_stream_complex_value_t *val, ngx_str_t *value) | |
| 61 { | |
| 62 size_t len; | |
| 63 ngx_stream_script_code_pt code; | |
| 64 ngx_stream_script_engine_t e; | |
| 65 ngx_stream_script_len_code_pt lcode; | |
| 66 | |
| 67 if (val->lengths == NULL) { | |
| 68 *value = val->value; | |
| 69 return NGX_OK; | |
| 70 } | |
| 71 | |
| 72 ngx_stream_script_flush_complex_value(s, val); | |
| 73 | |
| 74 ngx_memzero(&e, sizeof(ngx_stream_script_engine_t)); | |
| 75 | |
| 76 e.ip = val->lengths; | |
| 77 e.session = s; | |
| 78 e.flushed = 1; | |
| 79 | |
| 80 len = 0; | |
| 81 | |
| 82 while (*(uintptr_t *) e.ip) { | |
| 83 lcode = *(ngx_stream_script_len_code_pt *) e.ip; | |
| 84 len += lcode(&e); | |
| 85 } | |
| 86 | |
| 87 value->len = len; | |
| 88 value->data = ngx_pnalloc(s->connection->pool, len); | |
| 89 if (value->data == NULL) { | |
| 90 return NGX_ERROR; | |
| 91 } | |
| 92 | |
| 93 e.ip = val->values; | |
| 94 e.pos = value->data; | |
| 95 e.buf = *value; | |
| 96 | |
| 97 while (*(uintptr_t *) e.ip) { | |
| 98 code = *(ngx_stream_script_code_pt *) e.ip; | |
| 99 code((ngx_stream_script_engine_t *) &e); | |
| 100 } | |
| 101 | |
| 102 *value = e.buf; | |
| 103 | |
| 104 return NGX_OK; | |
| 105 } | |
| 106 | |
| 107 | |
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108 size_t |
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109 ngx_stream_complex_value_size(ngx_stream_session_t *s, |
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110 ngx_stream_complex_value_t *val, size_t default_value) |
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111 { |
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112 size_t size; |
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113 ngx_str_t value; |
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114 |
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115 if (val == NULL) { |
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116 return default_value; |
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117 } |
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118 |
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119 if (val->lengths == NULL) { |
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120 return val->u.size; |
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121 } |
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122 |
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123 if (ngx_stream_complex_value(s, val, &value) != NGX_OK) { |
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124 return default_value; |
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125 } |
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126 |
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127 size = ngx_parse_size(&value); |
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128 |
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129 if (size == (size_t) NGX_ERROR) { |
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130 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
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131 "invalid size \"%V\"", &value); |
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132 return default_value; |
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133 } |
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134 |
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135 return size; |
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136 } |
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137 |
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138 |
| 6607 | 139 ngx_int_t |
| 140 ngx_stream_compile_complex_value(ngx_stream_compile_complex_value_t *ccv) | |
| 141 { | |
| 142 ngx_str_t *v; | |
| 143 ngx_uint_t i, n, nv, nc; | |
| 144 ngx_array_t flushes, lengths, values, *pf, *pl, *pv; | |
| 145 ngx_stream_script_compile_t sc; | |
| 146 | |
| 147 v = ccv->value; | |
| 148 | |
| 149 nv = 0; | |
| 150 nc = 0; | |
| 151 | |
| 152 for (i = 0; i < v->len; i++) { | |
| 153 if (v->data[i] == '$') { | |
| 154 if (v->data[i + 1] >= '1' && v->data[i + 1] <= '9') { | |
| 155 nc++; | |
| 156 | |
| 157 } else { | |
| 158 nv++; | |
| 159 } | |
| 160 } | |
| 161 } | |
| 162 | |
| 163 if ((v->len == 0 || v->data[0] != '$') | |
| 164 && (ccv->conf_prefix || ccv->root_prefix)) | |
| 165 { | |
| 166 if (ngx_conf_full_name(ccv->cf->cycle, v, ccv->conf_prefix) != NGX_OK) { | |
| 167 return NGX_ERROR; | |
| 168 } | |
| 169 | |
| 170 ccv->conf_prefix = 0; | |
| 171 ccv->root_prefix = 0; | |
| 172 } | |
| 173 | |
| 174 ccv->complex_value->value = *v; | |
| 175 ccv->complex_value->flushes = NULL; | |
| 176 ccv->complex_value->lengths = NULL; | |
| 177 ccv->complex_value->values = NULL; | |
| 178 | |
| 179 if (nv == 0 && nc == 0) { | |
| 180 return NGX_OK; | |
| 181 } | |
| 182 | |
| 183 n = nv + 1; | |
| 184 | |
| 185 if (ngx_array_init(&flushes, ccv->cf->pool, n, sizeof(ngx_uint_t)) | |
| 186 != NGX_OK) | |
| 187 { | |
| 188 return NGX_ERROR; | |
| 189 } | |
| 190 | |
| 191 n = nv * (2 * sizeof(ngx_stream_script_copy_code_t) | |
| 192 + sizeof(ngx_stream_script_var_code_t)) | |
| 193 + sizeof(uintptr_t); | |
| 194 | |
| 195 if (ngx_array_init(&lengths, ccv->cf->pool, n, 1) != NGX_OK) { | |
| 196 return NGX_ERROR; | |
| 197 } | |
| 198 | |
| 199 n = (nv * (2 * sizeof(ngx_stream_script_copy_code_t) | |
| 200 + sizeof(ngx_stream_script_var_code_t)) | |
| 201 + sizeof(uintptr_t) | |
| 202 + v->len | |
| 203 + sizeof(uintptr_t) - 1) | |
| 204 & ~(sizeof(uintptr_t) - 1); | |
| 205 | |
| 206 if (ngx_array_init(&values, ccv->cf->pool, n, 1) != NGX_OK) { | |
| 207 return NGX_ERROR; | |
| 208 } | |
| 209 | |
| 210 pf = &flushes; | |
| 211 pl = &lengths; | |
| 212 pv = &values; | |
| 213 | |
| 214 ngx_memzero(&sc, sizeof(ngx_stream_script_compile_t)); | |
| 215 | |
| 216 sc.cf = ccv->cf; | |
| 217 sc.source = v; | |
| 218 sc.flushes = &pf; | |
| 219 sc.lengths = &pl; | |
| 220 sc.values = &pv; | |
| 221 sc.complete_lengths = 1; | |
| 222 sc.complete_values = 1; | |
| 223 sc.zero = ccv->zero; | |
| 224 sc.conf_prefix = ccv->conf_prefix; | |
| 225 sc.root_prefix = ccv->root_prefix; | |
| 226 | |
| 227 if (ngx_stream_script_compile(&sc) != NGX_OK) { | |
| 228 return NGX_ERROR; | |
| 229 } | |
| 230 | |
| 231 if (flushes.nelts) { | |
| 232 ccv->complex_value->flushes = flushes.elts; | |
| 233 ccv->complex_value->flushes[flushes.nelts] = (ngx_uint_t) -1; | |
| 234 } | |
| 235 | |
| 236 ccv->complex_value->lengths = lengths.elts; | |
| 237 ccv->complex_value->values = values.elts; | |
| 238 | |
| 239 return NGX_OK; | |
| 240 } | |
| 241 | |
| 242 | |
| 243 char * | |
| 244 ngx_stream_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 245 void *conf) | |
| 246 { | |
| 247 char *p = conf; | |
| 248 | |
| 249 ngx_str_t *value; | |
| 250 ngx_stream_complex_value_t **cv; | |
| 251 ngx_stream_compile_complex_value_t ccv; | |
| 252 | |
| 253 cv = (ngx_stream_complex_value_t **) (p + cmd->offset); | |
| 254 | |
| 255 if (*cv != NULL) { | |
|
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256 return "is duplicate"; |
| 6607 | 257 } |
| 258 | |
| 259 *cv = ngx_palloc(cf->pool, sizeof(ngx_stream_complex_value_t)); | |
| 260 if (*cv == NULL) { | |
| 261 return NGX_CONF_ERROR; | |
| 262 } | |
| 263 | |
| 264 value = cf->args->elts; | |
| 265 | |
| 266 ngx_memzero(&ccv, sizeof(ngx_stream_compile_complex_value_t)); | |
| 267 | |
| 268 ccv.cf = cf; | |
| 269 ccv.value = &value[1]; | |
| 270 ccv.complex_value = *cv; | |
| 271 | |
| 272 if (ngx_stream_compile_complex_value(&ccv) != NGX_OK) { | |
| 273 return NGX_CONF_ERROR; | |
| 274 } | |
| 275 | |
| 276 return NGX_CONF_OK; | |
| 277 } | |
| 278 | |
| 279 | |
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parents:
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280 char * |
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281 ngx_stream_set_complex_value_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
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282 void *conf) |
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283 { |
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284 char *p = conf; |
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285 |
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286 char *rv; |
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287 ngx_stream_complex_value_t *cv; |
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288 |
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289 rv = ngx_stream_set_complex_value_slot(cf, cmd, conf); |
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290 |
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291 if (rv != NGX_CONF_OK) { |
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292 return rv; |
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293 } |
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294 |
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295 cv = *(ngx_stream_complex_value_t **) (p + cmd->offset); |
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296 |
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297 if (cv->lengths) { |
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298 return NGX_CONF_OK; |
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299 } |
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300 |
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301 cv->u.size = ngx_parse_size(&cv->value); |
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302 if (cv->u.size == (size_t) NGX_ERROR) { |
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303 return "invalid value"; |
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304 } |
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305 |
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306 return NGX_CONF_OK; |
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307 } |
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308 |
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b82162b8496a
Added ngx_http_set_complex_value_size_slot().
Ruslan Ermilov <ru@nginx.com>
parents:
7271
diff
changeset
|
309 |
| 6607 | 310 ngx_uint_t |
| 311 ngx_stream_script_variables_count(ngx_str_t *value) | |
| 312 { | |
| 313 ngx_uint_t i, n; | |
| 314 | |
| 315 for (n = 0, i = 0; i < value->len; i++) { | |
| 316 if (value->data[i] == '$') { | |
| 317 n++; | |
| 318 } | |
| 319 } | |
| 320 | |
| 321 return n; | |
| 322 } | |
| 323 | |
| 324 | |
| 325 ngx_int_t | |
| 326 ngx_stream_script_compile(ngx_stream_script_compile_t *sc) | |
| 327 { | |
| 328 u_char ch; | |
| 329 ngx_str_t name; | |
| 330 ngx_uint_t i, bracket; | |
| 331 | |
| 332 if (ngx_stream_script_init_arrays(sc) != NGX_OK) { | |
| 333 return NGX_ERROR; | |
| 334 } | |
| 335 | |
| 336 for (i = 0; i < sc->source->len; /* void */ ) { | |
| 337 | |
| 338 name.len = 0; | |
| 339 | |
| 340 if (sc->source->data[i] == '$') { | |
| 341 | |
| 342 if (++i == sc->source->len) { | |
| 343 goto invalid_variable; | |
| 344 } | |
| 345 | |
|
6644
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
346 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') { |
| 6607 | 347 #if (NGX_PCRE) |
|
6644
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
348 ngx_uint_t n; |
| 6607 | 349 |
| 350 n = sc->source->data[i] - '0'; | |
| 351 | |
| 352 if (ngx_stream_script_add_capture_code(sc, n) != NGX_OK) { | |
| 353 return NGX_ERROR; | |
| 354 } | |
| 355 | |
| 356 i++; | |
| 357 | |
| 358 continue; | |
|
6644
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
359 #else |
|
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
360 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, |
|
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
361 "using variable \"$%c\" requires " |
|
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
362 "PCRE library", sc->source->data[i]); |
|
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
363 return NGX_ERROR; |
|
af642539cd53
Fixed regex captures handling without PCRE.
Vladimir Homutov <vl@nginx.com>
parents:
6607
diff
changeset
|
364 #endif |
| 6607 | 365 } |
| 366 | |
| 367 if (sc->source->data[i] == '{') { | |
| 368 bracket = 1; | |
| 369 | |
| 370 if (++i == sc->source->len) { | |
| 371 goto invalid_variable; | |
| 372 } | |
| 373 | |
| 374 name.data = &sc->source->data[i]; | |
| 375 | |
| 376 } else { | |
| 377 bracket = 0; | |
| 378 name.data = &sc->source->data[i]; | |
| 379 } | |
| 380 | |
| 381 for ( /* void */ ; i < sc->source->len; i++, name.len++) { | |
| 382 ch = sc->source->data[i]; | |
| 383 | |
| 384 if (ch == '}' && bracket) { | |
| 385 i++; | |
| 386 bracket = 0; | |
| 387 break; | |
| 388 } | |
| 389 | |
| 390 if ((ch >= 'A' && ch <= 'Z') | |
| 391 || (ch >= 'a' && ch <= 'z') | |
| 392 || (ch >= '0' && ch <= '9') | |
| 393 || ch == '_') | |
| 394 { | |
| 395 continue; | |
| 396 } | |
| 397 | |
| 398 break; | |
| 399 } | |
| 400 | |
| 401 if (bracket) { | |
| 402 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, | |
| 403 "the closing bracket in \"%V\" " | |
| 404 "variable is missing", &name); | |
| 405 return NGX_ERROR; | |
| 406 } | |
| 407 | |
| 408 if (name.len == 0) { | |
| 409 goto invalid_variable; | |
| 410 } | |
| 411 | |
| 412 sc->variables++; | |
| 413 | |
| 414 if (ngx_stream_script_add_var_code(sc, &name) != NGX_OK) { | |
| 415 return NGX_ERROR; | |
| 416 } | |
| 417 | |
| 418 continue; | |
| 419 } | |
| 420 | |
| 421 name.data = &sc->source->data[i]; | |
| 422 | |
| 423 while (i < sc->source->len) { | |
| 424 | |
| 425 if (sc->source->data[i] == '$') { | |
| 426 break; | |
| 427 } | |
| 428 | |
| 429 i++; | |
| 430 name.len++; | |
| 431 } | |
| 432 | |
| 433 sc->size += name.len; | |
| 434 | |
| 435 if (ngx_stream_script_add_copy_code(sc, &name, (i == sc->source->len)) | |
| 436 != NGX_OK) | |
| 437 { | |
| 438 return NGX_ERROR; | |
| 439 } | |
| 440 } | |
| 441 | |
| 442 return ngx_stream_script_done(sc); | |
| 443 | |
| 444 invalid_variable: | |
| 445 | |
| 446 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name"); | |
| 447 | |
| 448 return NGX_ERROR; | |
| 449 } | |
| 450 | |
| 451 | |
| 6678 | 452 u_char * |
| 453 ngx_stream_script_run(ngx_stream_session_t *s, ngx_str_t *value, | |
| 454 void *code_lengths, size_t len, void *code_values) | |
| 455 { | |
| 456 ngx_uint_t i; | |
| 457 ngx_stream_script_code_pt code; | |
| 458 ngx_stream_script_engine_t e; | |
| 459 ngx_stream_core_main_conf_t *cmcf; | |
| 460 ngx_stream_script_len_code_pt lcode; | |
| 461 | |
| 462 cmcf = ngx_stream_get_module_main_conf(s, ngx_stream_core_module); | |
| 463 | |
| 464 for (i = 0; i < cmcf->variables.nelts; i++) { | |
| 465 if (s->variables[i].no_cacheable) { | |
| 466 s->variables[i].valid = 0; | |
| 467 s->variables[i].not_found = 0; | |
| 468 } | |
| 469 } | |
| 470 | |
| 471 ngx_memzero(&e, sizeof(ngx_stream_script_engine_t)); | |
| 472 | |
| 473 e.ip = code_lengths; | |
| 474 e.session = s; | |
| 475 e.flushed = 1; | |
| 476 | |
| 477 while (*(uintptr_t *) e.ip) { | |
| 478 lcode = *(ngx_stream_script_len_code_pt *) e.ip; | |
| 479 len += lcode(&e); | |
| 480 } | |
| 481 | |
| 482 | |
| 483 value->len = len; | |
| 484 value->data = ngx_pnalloc(s->connection->pool, len); | |
| 485 if (value->data == NULL) { | |
| 486 return NULL; | |
| 487 } | |
| 488 | |
| 489 e.ip = code_values; | |
| 490 e.pos = value->data; | |
| 491 | |
| 492 while (*(uintptr_t *) e.ip) { | |
| 493 code = *(ngx_stream_script_code_pt *) e.ip; | |
| 494 code((ngx_stream_script_engine_t *) &e); | |
| 495 } | |
| 496 | |
| 497 return e.pos; | |
| 498 } | |
| 499 | |
| 500 | |
| 501 void | |
| 502 ngx_stream_script_flush_no_cacheable_variables(ngx_stream_session_t *s, | |
| 503 ngx_array_t *indices) | |
| 504 { | |
| 505 ngx_uint_t n, *index; | |
| 506 | |
| 507 if (indices) { | |
| 508 index = indices->elts; | |
| 509 for (n = 0; n < indices->nelts; n++) { | |
| 510 if (s->variables[index[n]].no_cacheable) { | |
| 511 s->variables[index[n]].valid = 0; | |
| 512 s->variables[index[n]].not_found = 0; | |
| 513 } | |
| 514 } | |
| 515 } | |
| 516 } | |
| 517 | |
| 518 | |
| 6607 | 519 static ngx_int_t |
| 520 ngx_stream_script_init_arrays(ngx_stream_script_compile_t *sc) | |
| 521 { | |
| 522 ngx_uint_t n; | |
| 523 | |
| 524 if (sc->flushes && *sc->flushes == NULL) { | |
| 525 n = sc->variables ? sc->variables : 1; | |
| 526 *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t)); | |
| 527 if (*sc->flushes == NULL) { | |
| 528 return NGX_ERROR; | |
| 529 } | |
| 530 } | |
| 531 | |
| 532 if (*sc->lengths == NULL) { | |
| 533 n = sc->variables * (2 * sizeof(ngx_stream_script_copy_code_t) | |
| 534 + sizeof(ngx_stream_script_var_code_t)) | |
| 535 + sizeof(uintptr_t); | |
| 536 | |
| 537 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1); | |
| 538 if (*sc->lengths == NULL) { | |
| 539 return NGX_ERROR; | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 if (*sc->values == NULL) { | |
| 544 n = (sc->variables * (2 * sizeof(ngx_stream_script_copy_code_t) | |
| 545 + sizeof(ngx_stream_script_var_code_t)) | |
| 546 + sizeof(uintptr_t) | |
| 547 + sc->source->len | |
| 548 + sizeof(uintptr_t) - 1) | |
| 549 & ~(sizeof(uintptr_t) - 1); | |
| 550 | |
| 551 *sc->values = ngx_array_create(sc->cf->pool, n, 1); | |
| 552 if (*sc->values == NULL) { | |
| 553 return NGX_ERROR; | |
| 554 } | |
| 555 } | |
| 556 | |
| 557 sc->variables = 0; | |
| 558 | |
| 559 return NGX_OK; | |
| 560 } | |
| 561 | |
| 562 | |
| 563 static ngx_int_t | |
| 564 ngx_stream_script_done(ngx_stream_script_compile_t *sc) | |
| 565 { | |
| 566 ngx_str_t zero; | |
| 567 uintptr_t *code; | |
| 568 | |
| 569 if (sc->zero) { | |
| 570 | |
| 571 zero.len = 1; | |
| 572 zero.data = (u_char *) "\0"; | |
| 573 | |
| 574 if (ngx_stream_script_add_copy_code(sc, &zero, 0) != NGX_OK) { | |
| 575 return NGX_ERROR; | |
| 576 } | |
| 577 } | |
| 578 | |
| 579 if (sc->conf_prefix || sc->root_prefix) { | |
| 580 if (ngx_stream_script_add_full_name_code(sc) != NGX_OK) { | |
| 581 return NGX_ERROR; | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 if (sc->complete_lengths) { | |
| 586 code = ngx_stream_script_add_code(*sc->lengths, sizeof(uintptr_t), | |
| 587 NULL); | |
| 588 if (code == NULL) { | |
| 589 return NGX_ERROR; | |
| 590 } | |
| 591 | |
| 592 *code = (uintptr_t) NULL; | |
| 593 } | |
| 594 | |
| 595 if (sc->complete_values) { | |
| 596 code = ngx_stream_script_add_code(*sc->values, sizeof(uintptr_t), | |
| 597 &sc->main); | |
| 598 if (code == NULL) { | |
| 599 return NGX_ERROR; | |
| 600 } | |
| 601 | |
| 602 *code = (uintptr_t) NULL; | |
| 603 } | |
| 604 | |
| 605 return NGX_OK; | |
| 606 } | |
| 607 | |
| 608 | |
| 609 void * | |
| 610 ngx_stream_script_add_code(ngx_array_t *codes, size_t size, void *code) | |
| 611 { | |
| 612 u_char *elts, **p; | |
| 613 void *new; | |
| 614 | |
| 615 elts = codes->elts; | |
| 616 | |
| 617 new = ngx_array_push_n(codes, size); | |
| 618 if (new == NULL) { | |
| 619 return NULL; | |
| 620 } | |
| 621 | |
| 622 if (code) { | |
| 623 if (elts != codes->elts) { | |
| 624 p = code; | |
| 625 *p += (u_char *) codes->elts - elts; | |
| 626 } | |
| 627 } | |
| 628 | |
| 629 return new; | |
| 630 } | |
| 631 | |
| 632 | |
| 633 static ngx_int_t | |
| 634 ngx_stream_script_add_copy_code(ngx_stream_script_compile_t *sc, | |
| 635 ngx_str_t *value, ngx_uint_t last) | |
| 636 { | |
| 637 u_char *p; | |
| 638 size_t size, len, zero; | |
| 639 ngx_stream_script_copy_code_t *code; | |
| 640 | |
| 641 zero = (sc->zero && last); | |
| 642 len = value->len + zero; | |
| 643 | |
| 644 code = ngx_stream_script_add_code(*sc->lengths, | |
| 645 sizeof(ngx_stream_script_copy_code_t), | |
| 646 NULL); | |
| 647 if (code == NULL) { | |
| 648 return NGX_ERROR; | |
| 649 } | |
| 650 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
651 code->code = (ngx_stream_script_code_pt) (void *) |
|
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
652 ngx_stream_script_copy_len_code; |
| 6607 | 653 code->len = len; |
| 654 | |
| 655 size = (sizeof(ngx_stream_script_copy_code_t) + len + sizeof(uintptr_t) - 1) | |
| 656 & ~(sizeof(uintptr_t) - 1); | |
| 657 | |
| 658 code = ngx_stream_script_add_code(*sc->values, size, &sc->main); | |
| 659 if (code == NULL) { | |
| 660 return NGX_ERROR; | |
| 661 } | |
| 662 | |
| 663 code->code = ngx_stream_script_copy_code; | |
| 664 code->len = len; | |
| 665 | |
| 666 p = ngx_cpymem((u_char *) code + sizeof(ngx_stream_script_copy_code_t), | |
| 667 value->data, value->len); | |
| 668 | |
| 669 if (zero) { | |
| 670 *p = '\0'; | |
| 671 sc->zero = 0; | |
| 672 } | |
| 673 | |
| 674 return NGX_OK; | |
| 675 } | |
| 676 | |
| 677 | |
| 678 size_t | |
| 679 ngx_stream_script_copy_len_code(ngx_stream_script_engine_t *e) | |
| 680 { | |
| 681 ngx_stream_script_copy_code_t *code; | |
| 682 | |
| 683 code = (ngx_stream_script_copy_code_t *) e->ip; | |
| 684 | |
| 685 e->ip += sizeof(ngx_stream_script_copy_code_t); | |
| 686 | |
| 687 return code->len; | |
| 688 } | |
| 689 | |
| 690 | |
| 691 void | |
| 692 ngx_stream_script_copy_code(ngx_stream_script_engine_t *e) | |
| 693 { | |
| 694 u_char *p; | |
| 695 ngx_stream_script_copy_code_t *code; | |
| 696 | |
| 697 code = (ngx_stream_script_copy_code_t *) e->ip; | |
| 698 | |
| 699 p = e->pos; | |
| 700 | |
| 701 if (!e->skip) { | |
| 702 e->pos = ngx_copy(p, e->ip + sizeof(ngx_stream_script_copy_code_t), | |
| 703 code->len); | |
| 704 } | |
| 705 | |
| 706 e->ip += sizeof(ngx_stream_script_copy_code_t) | |
| 707 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1)); | |
| 708 | |
| 709 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, e->session->connection->log, 0, | |
| 710 "stream script copy: \"%*s\"", e->pos - p, p); | |
| 711 } | |
| 712 | |
| 713 | |
| 714 static ngx_int_t | |
| 715 ngx_stream_script_add_var_code(ngx_stream_script_compile_t *sc, ngx_str_t *name) | |
| 716 { | |
| 717 ngx_int_t index, *p; | |
| 718 ngx_stream_script_var_code_t *code; | |
| 719 | |
| 720 index = ngx_stream_get_variable_index(sc->cf, name); | |
| 721 | |
| 722 if (index == NGX_ERROR) { | |
| 723 return NGX_ERROR; | |
| 724 } | |
| 725 | |
| 726 if (sc->flushes) { | |
| 727 p = ngx_array_push(*sc->flushes); | |
| 728 if (p == NULL) { | |
| 729 return NGX_ERROR; | |
| 730 } | |
| 731 | |
| 732 *p = index; | |
| 733 } | |
| 734 | |
| 735 code = ngx_stream_script_add_code(*sc->lengths, | |
| 736 sizeof(ngx_stream_script_var_code_t), | |
| 737 NULL); | |
| 738 if (code == NULL) { | |
| 739 return NGX_ERROR; | |
| 740 } | |
| 741 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
742 code->code = (ngx_stream_script_code_pt) (void *) |
|
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
743 ngx_stream_script_copy_var_len_code; |
| 6607 | 744 code->index = (uintptr_t) index; |
| 745 | |
| 746 code = ngx_stream_script_add_code(*sc->values, | |
| 747 sizeof(ngx_stream_script_var_code_t), | |
| 748 &sc->main); | |
| 749 if (code == NULL) { | |
| 750 return NGX_ERROR; | |
| 751 } | |
| 752 | |
| 753 code->code = ngx_stream_script_copy_var_code; | |
| 754 code->index = (uintptr_t) index; | |
| 755 | |
| 756 return NGX_OK; | |
| 757 } | |
| 758 | |
| 759 | |
| 760 size_t | |
| 761 ngx_stream_script_copy_var_len_code(ngx_stream_script_engine_t *e) | |
| 762 { | |
| 763 ngx_stream_variable_value_t *value; | |
| 764 ngx_stream_script_var_code_t *code; | |
| 765 | |
| 766 code = (ngx_stream_script_var_code_t *) e->ip; | |
| 767 | |
| 768 e->ip += sizeof(ngx_stream_script_var_code_t); | |
| 769 | |
| 770 if (e->flushed) { | |
| 771 value = ngx_stream_get_indexed_variable(e->session, code->index); | |
| 772 | |
| 773 } else { | |
| 774 value = ngx_stream_get_flushed_variable(e->session, code->index); | |
| 775 } | |
| 776 | |
| 777 if (value && !value->not_found) { | |
| 778 return value->len; | |
| 779 } | |
| 780 | |
| 781 return 0; | |
| 782 } | |
| 783 | |
| 784 | |
| 785 void | |
| 786 ngx_stream_script_copy_var_code(ngx_stream_script_engine_t *e) | |
| 787 { | |
| 788 u_char *p; | |
| 789 ngx_stream_variable_value_t *value; | |
| 790 ngx_stream_script_var_code_t *code; | |
| 791 | |
| 792 code = (ngx_stream_script_var_code_t *) e->ip; | |
| 793 | |
| 794 e->ip += sizeof(ngx_stream_script_var_code_t); | |
| 795 | |
| 796 if (!e->skip) { | |
| 797 | |
| 798 if (e->flushed) { | |
| 799 value = ngx_stream_get_indexed_variable(e->session, code->index); | |
| 800 | |
| 801 } else { | |
| 802 value = ngx_stream_get_flushed_variable(e->session, code->index); | |
| 803 } | |
| 804 | |
| 805 if (value && !value->not_found) { | |
| 806 p = e->pos; | |
| 807 e->pos = ngx_copy(p, value->data, value->len); | |
| 808 | |
| 809 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, | |
| 810 e->session->connection->log, 0, | |
| 811 "stream script var: \"%*s\"", e->pos - p, p); | |
| 812 } | |
| 813 } | |
| 814 } | |
| 815 | |
| 816 | |
| 817 #if (NGX_PCRE) | |
| 818 | |
| 819 static ngx_int_t | |
| 820 ngx_stream_script_add_capture_code(ngx_stream_script_compile_t *sc, | |
| 821 ngx_uint_t n) | |
| 822 { | |
| 823 ngx_stream_script_copy_capture_code_t *code; | |
| 824 | |
| 825 code = ngx_stream_script_add_code(*sc->lengths, | |
| 826 sizeof(ngx_stream_script_copy_capture_code_t), | |
| 827 NULL); | |
| 828 if (code == NULL) { | |
| 829 return NGX_ERROR; | |
| 830 } | |
| 831 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
832 code->code = (ngx_stream_script_code_pt) (void *) |
|
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
833 ngx_stream_script_copy_capture_len_code; |
| 6607 | 834 code->n = 2 * n; |
| 835 | |
| 836 | |
| 837 code = ngx_stream_script_add_code(*sc->values, | |
| 838 sizeof(ngx_stream_script_copy_capture_code_t), | |
| 839 &sc->main); | |
| 840 if (code == NULL) { | |
| 841 return NGX_ERROR; | |
| 842 } | |
| 843 | |
| 844 code->code = ngx_stream_script_copy_capture_code; | |
| 845 code->n = 2 * n; | |
| 846 | |
| 847 if (sc->ncaptures < n) { | |
| 848 sc->ncaptures = n; | |
| 849 } | |
| 850 | |
| 851 return NGX_OK; | |
| 852 } | |
| 853 | |
| 854 | |
| 855 size_t | |
| 856 ngx_stream_script_copy_capture_len_code(ngx_stream_script_engine_t *e) | |
| 857 { | |
| 858 int *cap; | |
| 859 ngx_uint_t n; | |
| 860 ngx_stream_session_t *s; | |
| 861 ngx_stream_script_copy_capture_code_t *code; | |
| 862 | |
| 863 s = e->session; | |
| 864 | |
| 865 code = (ngx_stream_script_copy_capture_code_t *) e->ip; | |
| 866 | |
| 867 e->ip += sizeof(ngx_stream_script_copy_capture_code_t); | |
| 868 | |
| 869 n = code->n; | |
| 870 | |
| 871 if (n < s->ncaptures) { | |
| 872 cap = s->captures; | |
| 873 return cap[n + 1] - cap[n]; | |
| 874 } | |
| 875 | |
| 876 return 0; | |
| 877 } | |
| 878 | |
| 879 | |
| 880 void | |
| 881 ngx_stream_script_copy_capture_code(ngx_stream_script_engine_t *e) | |
| 882 { | |
| 883 int *cap; | |
| 884 u_char *p, *pos; | |
| 885 ngx_uint_t n; | |
| 886 ngx_stream_session_t *s; | |
| 887 ngx_stream_script_copy_capture_code_t *code; | |
| 888 | |
| 889 s = e->session; | |
| 890 | |
| 891 code = (ngx_stream_script_copy_capture_code_t *) e->ip; | |
| 892 | |
| 893 e->ip += sizeof(ngx_stream_script_copy_capture_code_t); | |
| 894 | |
| 895 n = code->n; | |
| 896 | |
| 897 pos = e->pos; | |
| 898 | |
| 899 if (n < s->ncaptures) { | |
| 900 cap = s->captures; | |
| 901 p = s->captures_data; | |
| 902 e->pos = ngx_copy(pos, &p[cap[n]], cap[n + 1] - cap[n]); | |
| 903 } | |
| 904 | |
| 905 ngx_log_debug2(NGX_LOG_DEBUG_STREAM, e->session->connection->log, 0, | |
| 906 "stream script capture: \"%*s\"", e->pos - pos, pos); | |
| 907 } | |
| 908 | |
| 909 #endif | |
| 910 | |
| 911 | |
| 912 static ngx_int_t | |
| 913 ngx_stream_script_add_full_name_code(ngx_stream_script_compile_t *sc) | |
| 914 { | |
| 915 ngx_stream_script_full_name_code_t *code; | |
| 916 | |
| 917 code = ngx_stream_script_add_code(*sc->lengths, | |
| 918 sizeof(ngx_stream_script_full_name_code_t), | |
| 919 NULL); | |
| 920 if (code == NULL) { | |
| 921 return NGX_ERROR; | |
| 922 } | |
| 923 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
6940
diff
changeset
|
924 code->code = (ngx_stream_script_code_pt) (void *) |
| 6607 | 925 ngx_stream_script_full_name_len_code; |
| 926 code->conf_prefix = sc->conf_prefix; | |
| 927 | |
| 928 code = ngx_stream_script_add_code(*sc->values, | |
| 929 sizeof(ngx_stream_script_full_name_code_t), &sc->main); | |
| 930 if (code == NULL) { | |
| 931 return NGX_ERROR; | |
| 932 } | |
| 933 | |
| 934 code->code = ngx_stream_script_full_name_code; | |
| 935 code->conf_prefix = sc->conf_prefix; | |
| 936 | |
| 937 return NGX_OK; | |
| 938 } | |
| 939 | |
| 940 | |
| 941 static size_t | |
| 942 ngx_stream_script_full_name_len_code(ngx_stream_script_engine_t *e) | |
| 943 { | |
| 944 ngx_stream_script_full_name_code_t *code; | |
| 945 | |
| 946 code = (ngx_stream_script_full_name_code_t *) e->ip; | |
| 947 | |
| 948 e->ip += sizeof(ngx_stream_script_full_name_code_t); | |
| 949 | |
| 950 return code->conf_prefix ? ngx_cycle->conf_prefix.len: | |
| 951 ngx_cycle->prefix.len; | |
| 952 } | |
| 953 | |
| 954 | |
| 955 static void | |
| 956 ngx_stream_script_full_name_code(ngx_stream_script_engine_t *e) | |
| 957 { | |
| 958 ngx_stream_script_full_name_code_t *code; | |
| 959 | |
| 960 ngx_str_t value, *prefix; | |
| 961 | |
| 962 code = (ngx_stream_script_full_name_code_t *) e->ip; | |
| 963 | |
| 964 value.data = e->buf.data; | |
| 965 value.len = e->pos - e->buf.data; | |
| 966 | |
| 967 prefix = code->conf_prefix ? (ngx_str_t *) &ngx_cycle->conf_prefix: | |
| 968 (ngx_str_t *) &ngx_cycle->prefix; | |
| 969 | |
| 970 if (ngx_get_full_name(e->session->connection->pool, prefix, &value) | |
| 971 != NGX_OK) | |
| 972 { | |
| 973 e->ip = ngx_stream_script_exit; | |
| 974 return; | |
| 975 } | |
| 976 | |
| 977 e->buf = value; | |
| 978 | |
| 979 ngx_log_debug1(NGX_LOG_DEBUG_STREAM, e->session->connection->log, 0, | |
| 980 "stream script fullname: \"%V\"", &value); | |
| 981 | |
| 982 e->ip += sizeof(ngx_stream_script_full_name_code_t); | |
| 983 } |