Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_request.c @ 8219:1307308c3cf1 quic
Temporary fix for header null-termination in HTTP/3.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Sat, 14 Mar 2020 13:18:55 +0300 |
| parents | 38c0898b6df7 |
| children | 268f4389130d |
| rev | line source |
|---|---|
| 8215 | 1 |
| 2 /* | |
| 3 * Copyright (C) Roman Arutyunyan | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
| 13 #define NGX_HTTP_V3_FRAME_DATA 0x00 | |
| 14 #define NGX_HTTP_V3_FRAME_HEADERS 0x01 | |
| 15 #define NGX_HTTP_V3_FRAME_CANCEL_PUSH 0x03 | |
| 16 #define NGX_HTTP_V3_FRAME_SETTINGS 0x04 | |
| 17 #define NGX_HTTP_V3_FRAME_PUSH_PROMISE 0x05 | |
| 18 #define NGX_HTTP_V3_FRAME_GOAWAY 0x07 | |
| 19 #define NGX_HTTP_V3_FRAME_MAX_PUSH_ID 0x0d | |
| 20 | |
| 21 | |
| 22 static ngx_int_t ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, | |
| 23 ngx_str_t *name, ngx_str_t *value); | |
| 24 | |
| 25 | |
| 26 struct { | |
| 27 ngx_str_t name; | |
| 28 ngx_uint_t method; | |
| 29 } ngx_http_v3_methods[] = { | |
| 30 | |
| 31 { ngx_string("GET"), NGX_HTTP_GET }, | |
| 32 { ngx_string("POST"), NGX_HTTP_POST }, | |
| 33 { ngx_string("HEAD"), NGX_HTTP_HEAD }, | |
| 34 { ngx_string("OPTIONS"), NGX_HTTP_OPTIONS }, | |
| 35 { ngx_string("PROPFIND"), NGX_HTTP_PROPFIND }, | |
| 36 { ngx_string("PUT"), NGX_HTTP_PUT }, | |
| 37 { ngx_string("MKCOL"), NGX_HTTP_MKCOL }, | |
| 38 { ngx_string("DELETE"), NGX_HTTP_DELETE }, | |
| 39 { ngx_string("COPY"), NGX_HTTP_COPY }, | |
| 40 { ngx_string("MOVE"), NGX_HTTP_MOVE }, | |
| 41 { ngx_string("PROPPATCH"), NGX_HTTP_PROPPATCH }, | |
| 42 { ngx_string("LOCK"), NGX_HTTP_LOCK }, | |
| 43 { ngx_string("UNLOCK"), NGX_HTTP_UNLOCK }, | |
| 44 { ngx_string("PATCH"), NGX_HTTP_PATCH }, | |
| 45 { ngx_string("TRACE"), NGX_HTTP_TRACE } | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 ngx_int_t | |
| 50 ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b, ngx_uint_t pseudo) | |
| 51 { | |
| 52 u_char *p, ch; | |
| 53 ngx_str_t name, value; | |
| 54 ngx_int_t rc; | |
| 55 ngx_uint_t length, index, insert_count, sign, base, delta_base, | |
| 56 huffman, dynamic, offset; | |
| 57 ngx_connection_t *c; | |
| 58 ngx_http_v3_header_t *h; | |
| 59 enum { | |
| 60 sw_start = 0, | |
| 61 sw_length, | |
| 62 sw_length_1, | |
| 63 sw_length_2, | |
| 64 sw_length_3, | |
| 65 sw_header_block, | |
| 66 sw_req_insert_count, | |
| 67 sw_delta_base, | |
| 68 sw_read_delta_base, | |
| 69 sw_header, | |
| 70 sw_old_header, | |
| 71 sw_header_ri, | |
| 72 sw_header_pbi, | |
| 73 sw_header_lri, | |
| 74 sw_header_lpbi, | |
| 75 sw_header_l_name_len, | |
| 76 sw_header_l_name, | |
| 77 sw_header_value_len, | |
| 78 sw_header_read_value_len, | |
| 79 sw_header_value | |
| 80 } state; | |
| 81 | |
| 82 c = r->connection; | |
| 83 | |
| 84 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 85 "http3 parse header, pseudo:%ui", pseudo); | |
| 86 | |
| 87 if (r->state == sw_old_header) { | |
| 88 r->state = sw_header; | |
| 89 return NGX_OK; | |
| 90 } | |
| 91 | |
| 92 length = r->h3_length; | |
| 93 index = r->h3_index; | |
| 94 insert_count = r->h3_insert_count; | |
| 95 sign = r->h3_sign; | |
| 96 delta_base = r->h3_delta_base; | |
| 97 huffman = r->h3_huffman; | |
| 98 dynamic = r->h3_dynamic; | |
| 99 offset = r->h3_offset; | |
| 100 | |
| 101 name.data = r->header_name_start; | |
| 102 name.len = r->header_name_end - r->header_name_start; | |
| 103 value.data = r->header_start; | |
| 104 value.len = r->header_end - r->header_start; | |
| 105 | |
| 106 if (r->state == sw_start) { | |
| 107 length = 1; | |
| 108 } | |
| 109 | |
| 110 again: | |
| 111 | |
| 112 state = r->state; | |
| 113 | |
| 114 if (state == sw_header && length == 0) { | |
| 115 r->state = sw_start; | |
| 116 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 117 } | |
| 118 | |
| 119 for (p = b->pos; p < b->last; p++) { | |
| 120 | |
| 121 if (state >= sw_header_block && length-- == 0) { | |
| 122 goto failed; | |
| 123 } | |
| 124 | |
| 125 ch = *p; | |
| 126 | |
| 127 switch (state) { | |
| 128 | |
| 129 case sw_start: | |
| 130 | |
| 131 if (ch != NGX_HTTP_V3_FRAME_HEADERS) { | |
| 132 goto failed; | |
| 133 } | |
| 134 | |
| 135 r->request_start = p; | |
| 136 state = sw_length; | |
| 137 break; | |
| 138 | |
| 139 case sw_length: | |
| 140 | |
| 141 length = ch; | |
| 142 if (length & 0xc0) { | |
| 143 state = sw_length_1; | |
| 144 break; | |
| 145 } | |
| 146 | |
| 147 state = sw_header_block; | |
| 148 break; | |
| 149 | |
| 150 case sw_length_1: | |
| 151 | |
| 152 length = (length << 8) + ch; | |
| 153 if ((length & 0xc000) != 0x4000) { | |
| 154 state = sw_length_2; | |
| 155 break; | |
| 156 } | |
| 157 | |
| 158 length &= 0x3fff; | |
| 159 state = sw_header_block; | |
| 160 break; | |
| 161 | |
| 162 case sw_length_2: | |
| 163 | |
| 164 length = (length << 8) + ch; | |
| 165 if ((length & 0xc00000) != 0x800000) { | |
| 166 state = sw_length_3; | |
| 167 break; | |
| 168 } | |
| 169 | |
| 170 /* fall through */ | |
| 171 | |
| 172 case sw_length_3: | |
| 173 | |
| 174 length &= 0x3fffff; | |
| 175 state = sw_header_block; | |
| 176 break; | |
| 177 | |
| 178 case sw_header_block: | |
| 179 | |
| 180 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 181 "http3 header block length:%ui", length); | |
| 182 | |
| 183 if (ch != 0xff) { | |
| 184 insert_count = ch; | |
| 185 state = sw_delta_base; | |
| 186 break; | |
| 187 } | |
| 188 | |
| 189 insert_count = 0; | |
| 190 state = sw_req_insert_count; | |
| 191 break; | |
| 192 | |
| 193 case sw_req_insert_count: | |
| 194 | |
| 195 insert_count = (insert_count << 7) + (ch & 0x7f); | |
| 196 if (ch & 0x80) { | |
| 197 break; | |
| 198 } | |
| 199 | |
| 200 insert_count += 0xff; | |
| 201 state = sw_delta_base; | |
| 202 break; | |
| 203 | |
| 204 case sw_delta_base: | |
| 205 | |
| 206 sign = (ch & 0x80) ? 1 : 0; | |
| 207 delta_base = ch & 0x7f; | |
| 208 | |
| 209 if (delta_base != 0x7f) { | |
| 210 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 211 "http3 header block " | |
| 212 "insert_count:%ui, sign:%ui, delta_base:%ui", | |
| 213 insert_count, sign, delta_base); | |
| 214 goto done; | |
| 215 } | |
| 216 | |
| 217 delta_base = 0; | |
| 218 state = sw_read_delta_base; | |
| 219 break; | |
| 220 | |
| 221 case sw_read_delta_base: | |
| 222 | |
| 223 delta_base = (delta_base << 7) + (ch & 0x7f); | |
| 224 if (ch & 0x80) { | |
| 225 break; | |
| 226 } | |
| 227 | |
| 228 delta_base += 0x7f; | |
| 229 | |
| 230 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 231 "http3 header block " | |
| 232 "insert_count:%ui, sign:%ui, delta_base:%ui", | |
| 233 insert_count, sign, delta_base); | |
| 234 goto done; | |
| 235 | |
| 236 case sw_header: | |
| 237 | |
| 238 index = 0; | |
| 239 huffman = 0; | |
| 240 ngx_str_null(&name); | |
| 241 ngx_str_null(&value); | |
| 242 | |
| 243 if (ch & 0x80) { | |
| 244 /* Indexed Header Field */ | |
| 245 | |
| 246 dynamic = (ch & 0x40) ? 0 : 1; | |
| 247 index = ch & 0x3f; | |
| 248 | |
| 249 if (index != 0x3f) { | |
| 250 goto done; | |
| 251 } | |
| 252 | |
| 253 index = 0; | |
| 254 state = sw_header_ri; | |
| 255 break; | |
| 256 } | |
| 257 | |
| 258 if (ch & 0x40) { | |
| 259 /* Literal Header Field With Name Reference */ | |
| 260 | |
| 261 dynamic = (ch & 0x10) ? 0 : 1; | |
| 262 index = ch & 0x0f; | |
| 263 | |
| 264 if (index != 0x0f) { | |
| 265 state = sw_header_value_len; | |
| 266 break; | |
| 267 } | |
| 268 | |
| 269 index = 0; | |
| 270 state = sw_header_lri; | |
| 271 break; | |
| 272 } | |
| 273 | |
| 274 if (ch & 0x20) { | |
| 275 /* Literal Header Field Without Name Reference */ | |
| 276 | |
| 277 huffman = (ch & 0x08) ? 1 : 0; | |
| 278 name.len = ch & 0x07; | |
| 279 | |
| 280 if (name.len == 0) { | |
| 281 goto failed; | |
| 282 } | |
| 283 | |
| 284 if (name.len != 0x07) { | |
| 285 offset = 0; | |
| 286 state = sw_header_l_name; | |
| 287 break; | |
| 288 } | |
| 289 | |
| 290 name.len = 0; | |
| 291 state = sw_header_l_name_len; | |
| 292 break; | |
| 293 } | |
| 294 | |
| 295 if (ch & 10) { | |
| 296 /* Indexed Header Field With Post-Base Index */ | |
| 297 | |
| 298 dynamic = 2; | |
| 299 index = ch & 0x0f; | |
| 300 | |
| 301 if (index != 0x0f) { | |
| 302 goto done; | |
| 303 } | |
| 304 | |
| 305 index = 0; | |
| 306 state = sw_header_pbi; | |
| 307 break; | |
| 308 } | |
| 309 | |
| 310 /* Literal Header Field With Post-Base Name Reference */ | |
| 311 | |
| 312 dynamic = 2; | |
| 313 index = ch & 0x07; | |
| 314 | |
| 315 if (index != 0x07) { | |
| 316 state = sw_header_value_len; | |
| 317 break; | |
| 318 } | |
| 319 | |
| 320 index = 0; | |
| 321 state = sw_header_lpbi; | |
| 322 break; | |
| 323 | |
| 324 case sw_header_ri: | |
| 325 | |
| 326 index = (index << 7) + (ch & 0x7f); | |
| 327 if (ch & 0x80) { | |
| 328 break; | |
| 329 } | |
| 330 | |
| 331 index += 0x3f; | |
| 332 goto done; | |
| 333 | |
| 334 case sw_header_pbi: | |
| 335 | |
| 336 index = (index << 7) + (ch & 0x7f); | |
| 337 if (ch & 0x80) { | |
| 338 break; | |
| 339 } | |
| 340 | |
| 341 index += 0x0f; | |
| 342 goto done; | |
| 343 | |
| 344 case sw_header_lri: | |
| 345 | |
| 346 index = (index << 7) + (ch & 0x7f); | |
| 347 if (ch & 0x80) { | |
| 348 break; | |
| 349 } | |
| 350 | |
| 351 index += 0x0f; | |
| 352 state = sw_header_value_len; | |
| 353 break; | |
| 354 | |
| 355 case sw_header_lpbi: | |
| 356 | |
| 357 index = (index << 7) + (ch & 0x7f); | |
| 358 if (ch & 0x80) { | |
| 359 break; | |
| 360 } | |
| 361 | |
| 362 index += 0x07; | |
| 363 state = sw_header_value_len; | |
| 364 break; | |
| 365 | |
| 366 | |
| 367 case sw_header_l_name_len: | |
| 368 | |
| 369 name.len = (name.len << 7) + (ch & 0x7f); | |
| 370 if (ch & 0x80) { | |
| 371 break; | |
| 372 } | |
| 373 | |
| 374 name.len += 0x07; | |
| 375 offset = 0; | |
| 376 state = sw_header_l_name; | |
| 377 break; | |
| 378 | |
| 379 case sw_header_l_name: | |
| 380 if (offset++ == 0) { | |
| 381 name.data = p; | |
| 382 } | |
| 383 | |
| 384 if (offset != name.len) { | |
| 385 break; | |
| 386 } | |
| 387 | |
| 388 if (huffman) { | |
| 389 if (ngx_http_v3_decode_huffman(c, &name) != NGX_OK) { | |
| 390 goto failed; | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 state = sw_header_value_len; | |
| 395 break; | |
| 396 | |
| 397 case sw_header_value_len: | |
| 398 | |
| 399 huffman = (ch & 0x80) ? 1 : 0; | |
| 400 value.len = ch & 0x7f; | |
| 401 | |
| 402 if (value.len == 0) { | |
| 403 value.data = p; | |
| 404 goto done; | |
| 405 } | |
| 406 | |
| 407 if (value.len != 0x7f) { | |
| 408 offset = 0; | |
| 409 state = sw_header_value; | |
| 410 break; | |
| 411 } | |
| 412 | |
| 413 value.len = 0; | |
| 414 state = sw_header_read_value_len; | |
| 415 break; | |
| 416 | |
| 417 case sw_header_read_value_len: | |
| 418 | |
| 419 value.len = (value.len << 7) + (ch & 0x7f); | |
| 420 if (ch & 0x80) { | |
| 421 break; | |
| 422 } | |
| 423 | |
| 424 value.len += 0x7f; | |
| 425 offset = 0; | |
| 426 state = sw_header_value; | |
| 427 break; | |
| 428 | |
| 429 case sw_header_value: | |
| 430 | |
| 431 if (offset++ == 0) { | |
| 432 value.data = p; | |
| 433 } | |
| 434 | |
| 435 if (offset != value.len) { | |
| 436 break; | |
| 437 } | |
| 438 | |
| 439 if (huffman) { | |
| 440 if (ngx_http_v3_decode_huffman(c, &value) != NGX_OK) { | |
| 441 goto failed; | |
| 442 } | |
| 443 } | |
| 444 | |
| 445 goto done; | |
| 446 | |
| 447 case sw_old_header: | |
| 448 | |
| 449 break; | |
| 450 } | |
| 451 } | |
| 452 | |
| 453 b->pos = p; | |
| 454 r->state = state; | |
| 455 r->h3_length = length; | |
| 456 r->h3_index = index; | |
| 457 r->h3_insert_count = insert_count; | |
| 458 r->h3_sign = sign; | |
| 459 r->h3_delta_base = delta_base; | |
| 460 r->h3_huffman = huffman; | |
| 461 r->h3_dynamic = dynamic; | |
| 462 r->h3_offset = offset; | |
| 463 | |
| 464 /* XXX fix large reallocations */ | |
| 465 r->header_name_start = name.data; | |
| 466 r->header_name_end = name.data + name.len; | |
| 467 r->header_start = value.data; | |
| 468 r->header_end = value.data + value.len; | |
| 469 | |
| 470 /* XXX r->lowcase_index = i; */ | |
| 471 | |
| 472 return NGX_AGAIN; | |
| 473 | |
| 474 done: | |
| 475 | |
| 476 b->pos = p + 1; | |
| 477 r->state = sw_header; | |
| 478 r->h3_length = length; | |
| 479 r->h3_insert_count = insert_count; | |
| 480 r->h3_sign = sign; | |
| 481 r->h3_delta_base = delta_base; | |
| 482 | |
| 483 if (state < sw_header) { | |
| 484 if (ngx_http_v3_check_insert_count(c, insert_count) != NGX_OK) { | |
| 485 return NGX_DONE; | |
| 486 } | |
| 487 | |
| 488 goto again; | |
| 489 } | |
| 490 | |
| 491 if (sign == 0) { | |
| 492 base = insert_count + delta_base; | |
| 493 } else { | |
| 494 base = insert_count - delta_base - 1; | |
| 495 } | |
| 496 | |
| 497 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 498 "http3 header %s[%ui], base:%ui, \"%V\":\"%V\"", | |
| 499 dynamic ? "dynamic" : "static", index, base, &name, &value); | |
| 500 | |
| 501 if (name.data == NULL) { | |
| 502 | |
| 503 if (dynamic == 2) { | |
| 504 index = base - index - 1; | |
| 505 } else if (dynamic == 1) { | |
| 506 index += base; | |
| 507 } | |
| 508 | |
| 509 h = ngx_http_v3_lookup_table(c, dynamic, index); | |
| 510 if (h == NULL) { | |
| 511 goto failed; | |
| 512 } | |
| 513 | |
| 514 name = h->name; | |
| 515 | |
| 516 if (value.data == NULL) { | |
| 517 value = h->value; | |
| 518 } | |
| 519 } | |
| 520 | |
|
8219
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
521 /* XXX ugly reallocation for the trailing '\0' */ |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
522 |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
523 p = ngx_pnalloc(c->pool, name.len + value.len + 2); |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
524 if (p == NULL) { |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
525 return NGX_ERROR; |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
526 } |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
527 |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
528 ngx_memcpy(p, name.data, name.len); |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
529 name.data = p; |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
530 ngx_memcpy(p + name.len + 1, value.data, value.len); |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
531 value.data = p + name.len + 1; |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
532 |
| 8215 | 533 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 534 "http3 header \"%V\":\"%V\"", &name, &value); | |
| 535 | |
| 536 if (pseudo) { | |
| 537 rc = ngx_http_v3_process_pseudo_header(r, &name, &value); | |
| 538 | |
| 539 if (rc == NGX_ERROR) { | |
| 540 goto failed; | |
| 541 } | |
| 542 | |
| 543 if (rc == NGX_OK) { | |
| 544 r->request_end = p + 1; | |
| 545 goto again; | |
| 546 } | |
| 547 | |
| 548 /* rc == NGX_DONE */ | |
| 549 | |
| 550 r->state = sw_old_header; | |
| 551 } | |
| 552 | |
| 553 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 554 "http3 header left:%ui", length); | |
| 555 | |
| 556 r->header_name_start = name.data; | |
| 557 r->header_name_end = name.data + name.len; | |
| 558 r->header_start = value.data; | |
| 559 r->header_end = value.data + value.len; | |
| 560 r->header_hash = ngx_hash_key(name.data, name.len); /* XXX */ | |
| 561 | |
| 562 /* XXX r->lowcase_index = i; */ | |
| 563 | |
| 564 return NGX_OK; | |
| 565 | |
| 566 failed: | |
| 567 | |
| 568 return NGX_HTTP_PARSE_INVALID_REQUEST; | |
| 569 } | |
| 570 | |
| 571 | |
| 572 static ngx_int_t | |
| 573 ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, ngx_str_t *name, | |
| 574 ngx_str_t *value) | |
| 575 { | |
| 576 ngx_uint_t i; | |
| 577 ngx_connection_t *c; | |
| 578 | |
| 579 c = r->connection; | |
| 580 | |
| 581 if (name->len == 7 && ngx_strncmp(name->data, ":method", 7) == 0) { | |
| 582 r->method_start = value->data; | |
| 583 r->method_end = value->data + value->len; | |
| 584 | |
| 585 for (i = 0; i < sizeof(ngx_http_v3_methods) | |
| 586 / sizeof(ngx_http_v3_methods[0]); i++) | |
| 587 { | |
| 588 if (value->len == ngx_http_v3_methods[i].name.len | |
| 589 && ngx_strncmp(value->data, ngx_http_v3_methods[i].name.data, | |
| 590 value->len) == 0) | |
| 591 { | |
| 592 r->method = ngx_http_v3_methods[i].method; | |
| 593 break; | |
| 594 } | |
| 595 } | |
| 596 | |
| 597 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 598 "http3 method \"%V\" %ui", value, r->method); | |
| 599 return NGX_OK; | |
| 600 } | |
| 601 | |
| 602 if (name->len == 5 && ngx_strncmp(name->data, ":path", 5) == 0) { | |
| 603 r->uri_start = value->data; | |
| 604 r->uri_end = value->data + value->len; | |
| 605 | |
| 606 if (ngx_http_parse_uri(r) != NGX_OK) { | |
| 607 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 608 "client sent invalid :path header: \"%V\"", value); | |
| 609 return NGX_ERROR; | |
| 610 } | |
| 611 | |
| 612 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 613 "http3 path \"%V\"", value); | |
| 614 | |
| 615 return NGX_OK; | |
| 616 } | |
| 617 | |
| 618 if (name->len == 7 && ngx_strncmp(name->data, ":scheme", 7) == 0) { | |
| 619 r->schema_start = value->data; | |
| 620 r->schema_end = value->data + value->len; | |
| 621 | |
| 622 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 623 "http3 schema \"%V\"", value); | |
| 624 | |
| 625 return NGX_OK; | |
| 626 } | |
| 627 | |
| 628 if (name->len == 10 && ngx_strncmp(name->data, ":authority", 10) == 0) { | |
| 629 r->host_start = value->data; | |
| 630 r->host_end = value->data + value->len; | |
| 631 | |
| 632 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 633 "http3 authority \"%V\"", value); | |
| 634 | |
| 635 return NGX_OK; | |
| 636 } | |
| 637 | |
| 638 if (name->len && name->data[0] == ':') { | |
| 639 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 640 "http3 unknown pseudo header \"%V\" \"%V\"", | |
| 641 name, value); | |
| 642 return NGX_OK; | |
| 643 } | |
| 644 | |
| 645 return NGX_DONE; | |
| 646 } | |
| 647 | |
| 648 | |
| 649 ngx_chain_t * | |
| 650 ngx_http_v3_create_header(ngx_http_request_t *r) | |
| 651 { | |
| 652 u_char *p; | |
| 653 size_t len, hlen, n; | |
| 654 ngx_buf_t *b; | |
| 655 ngx_uint_t i, j; | |
| 656 ngx_chain_t *hl, *cl, *bl; | |
| 657 ngx_list_part_t *part; | |
| 658 ngx_table_elt_t *header; | |
| 659 ngx_connection_t *c; | |
| 660 ngx_http_core_loc_conf_t *clcf; | |
| 661 | |
| 662 c = r->connection; | |
| 663 | |
| 664 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 create header"); | |
| 665 | |
| 666 /* XXX support chunked body in the chunked filter */ | |
| 667 if (r->headers_out.content_length_n == -1) { | |
| 668 return NULL; | |
| 669 } | |
| 670 | |
| 671 len = 0; | |
| 672 | |
| 673 if (r->headers_out.status == NGX_HTTP_OK) { | |
| 674 len += ngx_http_v3_encode_prefix_int(NULL, 25, 6); | |
| 675 | |
| 676 } else { | |
| 677 len += 3 + ngx_http_v3_encode_prefix_int(NULL, 25, 4) | |
| 678 + ngx_http_v3_encode_prefix_int(NULL, 3, 7); | |
| 679 } | |
| 680 | |
| 681 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 682 | |
| 683 if (r->headers_out.server == NULL) { | |
| 684 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { | |
| 685 n = sizeof(NGINX_VER) - 1; | |
| 686 | |
| 687 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { | |
| 688 n = sizeof(NGINX_VER_BUILD) - 1; | |
| 689 | |
| 690 } else { | |
| 691 n = sizeof("nginx") - 1; | |
| 692 } | |
| 693 | |
| 694 len += ngx_http_v3_encode_prefix_int(NULL, 92, 4) | |
| 695 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n; | |
| 696 } | |
| 697 | |
| 698 if (r->headers_out.date == NULL) { | |
| 699 len += ngx_http_v3_encode_prefix_int(NULL, 6, 4) | |
| 700 + ngx_http_v3_encode_prefix_int(NULL, ngx_cached_http_time.len, | |
| 701 7) | |
| 702 + ngx_cached_http_time.len; | |
| 703 } | |
| 704 | |
| 705 if (r->headers_out.content_type.len) { | |
| 706 n = r->headers_out.content_type.len; | |
| 707 | |
| 708 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 709 && r->headers_out.charset.len) | |
| 710 { | |
| 711 n += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
| 712 } | |
| 713 | |
| 714 len += ngx_http_v3_encode_prefix_int(NULL, 53, 4) | |
| 715 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n; | |
| 716 } | |
| 717 | |
| 718 if (r->headers_out.content_length_n == 0) { | |
| 719 len += ngx_http_v3_encode_prefix_int(NULL, 4, 6); | |
| 720 | |
| 721 } else { | |
| 722 len += ngx_http_v3_encode_prefix_int(NULL, 4, 4) + 1 + NGX_OFF_T_LEN; | |
| 723 } | |
| 724 | |
| 725 if (r->headers_out.last_modified == NULL | |
| 726 && r->headers_out.last_modified_time != -1) | |
| 727 { | |
| 728 len += ngx_http_v3_encode_prefix_int(NULL, 10, 4) + 1 | |
| 729 + sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT"); | |
| 730 } | |
| 731 | |
| 732 /* XXX location */ | |
| 733 | |
| 734 #if (NGX_HTTP_GZIP) | |
| 735 if (r->gzip_vary) { | |
| 736 if (clcf->gzip_vary) { | |
| 737 /* Vary: Accept-Encoding */ | |
| 738 len += ngx_http_v3_encode_prefix_int(NULL, 59, 6); | |
| 739 | |
| 740 } else { | |
| 741 r->gzip_vary = 0; | |
| 742 } | |
| 743 } | |
| 744 #endif | |
| 745 | |
| 746 part = &r->headers_out.headers.part; | |
| 747 header = part->elts; | |
| 748 | |
| 749 for (i = 0; /* void */; i++) { | |
| 750 | |
| 751 if (i >= part->nelts) { | |
| 752 if (part->next == NULL) { | |
| 753 break; | |
| 754 } | |
| 755 | |
| 756 part = part->next; | |
| 757 header = part->elts; | |
| 758 i = 0; | |
| 759 } | |
| 760 | |
| 761 if (header[i].hash == 0) { | |
| 762 continue; | |
| 763 } | |
| 764 | |
| 765 len += ngx_http_v3_encode_prefix_int(NULL, header[i].key.len, 3) | |
| 766 + header[i].key.len | |
| 767 + ngx_http_v3_encode_prefix_int(NULL, header[i].value.len, 7 ) | |
| 768 + header[i].value.len; | |
| 769 } | |
| 770 | |
| 771 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 header len:%uz", len); | |
| 772 | |
| 773 b = ngx_create_temp_buf(r->pool, len); | |
| 774 if (b == NULL) { | |
| 775 return NULL; | |
| 776 } | |
| 777 | |
| 778 *b->last++ = 0; | |
| 779 *b->last++ = 0; | |
| 780 | |
| 781 if (r->headers_out.status == NGX_HTTP_OK) { | |
| 782 /* :status: 200 */ | |
| 783 *b->last = 0xc0; | |
| 784 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 6); | |
| 785 | |
| 786 } else { | |
| 787 /* :status: 200 */ | |
| 788 *b->last = 0x70; | |
| 789 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 4); | |
| 790 *b->last = 0; | |
| 791 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 3, 7); | |
| 792 b->last = ngx_sprintf(b->last, "%03ui ", r->headers_out.status); | |
| 793 } | |
| 794 | |
| 795 if (r->headers_out.server == NULL) { | |
| 796 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { | |
| 797 p = (u_char *) NGINX_VER; | |
| 798 n = sizeof(NGINX_VER) - 1; | |
| 799 | |
| 800 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { | |
| 801 p = (u_char *) NGINX_VER_BUILD; | |
| 802 n = sizeof(NGINX_VER_BUILD) - 1; | |
| 803 | |
| 804 } else { | |
| 805 p = (u_char *) "nginx"; | |
| 806 n = sizeof("nginx") - 1; | |
| 807 } | |
| 808 | |
| 809 /* server */ | |
| 810 *b->last = 0x70; | |
| 811 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 92, 4); | |
| 812 *b->last = 0; | |
| 813 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7); | |
| 814 b->last = ngx_cpymem(b->last, p, n); | |
| 815 } | |
| 816 | |
| 817 if (r->headers_out.date == NULL) { | |
| 818 /* date */ | |
| 819 *b->last = 0x70; | |
| 820 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 6, 4); | |
| 821 *b->last = 0; | |
| 822 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 823 ngx_cached_http_time.len, 7); | |
| 824 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data, | |
| 825 ngx_cached_http_time.len); | |
| 826 } | |
| 827 | |
| 828 if (r->headers_out.content_type.len) { | |
| 829 n = r->headers_out.content_type.len; | |
| 830 | |
| 831 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 832 && r->headers_out.charset.len) | |
| 833 { | |
| 834 n += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
| 835 } | |
| 836 | |
| 837 /* content-type: text/plain */ | |
| 838 *b->last = 0x70; | |
| 839 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 53, 4); | |
| 840 *b->last = 0; | |
| 841 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7); | |
| 842 | |
| 843 p = b->last; | |
| 844 b->last = ngx_copy(b->last, r->headers_out.content_type.data, | |
| 845 r->headers_out.content_type.len); | |
| 846 | |
| 847 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 848 && r->headers_out.charset.len) | |
| 849 { | |
| 850 b->last = ngx_cpymem(b->last, "; charset=", | |
| 851 sizeof("; charset=") - 1); | |
| 852 b->last = ngx_copy(b->last, r->headers_out.charset.data, | |
| 853 r->headers_out.charset.len); | |
| 854 | |
| 855 /* update r->headers_out.content_type for possible logging */ | |
| 856 | |
| 857 r->headers_out.content_type.len = b->last - p; | |
| 858 r->headers_out.content_type.data = p; | |
| 859 } | |
| 860 } | |
| 861 | |
| 862 if (r->headers_out.content_length_n == 0) { | |
| 863 /* content-length: 0 */ | |
| 864 *b->last = 0xc0; | |
| 865 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 6); | |
| 866 | |
| 867 } else if (r->headers_out.content_length_n > 0) { | |
| 868 /* content-length: 0 */ | |
| 869 *b->last = 0x70; | |
| 870 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 4); | |
| 871 p = b->last++; | |
| 872 b->last = ngx_sprintf(b->last, "%O", r->headers_out.content_length_n); | |
| 873 *p = b->last - p - 1; | |
| 874 } | |
| 875 | |
| 876 if (r->headers_out.last_modified == NULL | |
| 877 && r->headers_out.last_modified_time != -1) | |
| 878 { | |
| 879 /* last-modified */ | |
| 880 *b->last = 0x70; | |
| 881 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 10, 4); | |
| 882 p = b->last++; | |
| 883 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time); | |
| 884 *p = b->last - p - 1; | |
| 885 } | |
| 886 | |
| 887 #if (NGX_HTTP_GZIP) | |
| 888 if (r->gzip_vary) { | |
| 889 /* vary: accept-encoding */ | |
| 890 *b->last = 0xc0; | |
| 891 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 59, 6); | |
| 892 } | |
| 893 #endif | |
| 894 | |
| 895 part = &r->headers_out.headers.part; | |
| 896 header = part->elts; | |
| 897 | |
| 898 for (i = 0; /* void */; i++) { | |
| 899 | |
| 900 if (i >= part->nelts) { | |
| 901 if (part->next == NULL) { | |
| 902 break; | |
| 903 } | |
| 904 | |
| 905 part = part->next; | |
| 906 header = part->elts; | |
| 907 i = 0; | |
| 908 } | |
| 909 | |
| 910 if (header[i].hash == 0) { | |
| 911 continue; | |
| 912 } | |
| 913 | |
| 914 *b->last = 0x30; | |
| 915 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 916 header[i].key.len, | |
| 917 3); | |
| 918 for (j = 0; j < header[i].key.len; j++) { | |
| 919 *b->last++ = ngx_tolower(header[i].key.data[j]); | |
| 920 } | |
| 921 | |
| 922 *b->last = 0; | |
| 923 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 924 header[i].value.len, | |
| 925 7); | |
| 926 b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len); | |
| 927 } | |
| 928 | |
| 929 cl = ngx_alloc_chain_link(c->pool); | |
| 930 if (cl == NULL) { | |
| 931 return NULL; | |
| 932 } | |
| 933 | |
| 934 cl->buf = b; | |
| 935 cl->next = NULL; | |
| 936 | |
| 937 n = b->last - b->pos; | |
| 938 | |
| 939 len = 1 + ngx_http_v3_encode_varlen_int(NULL, n); | |
| 940 | |
| 941 b = ngx_create_temp_buf(c->pool, len); | |
| 942 if (b == NULL) { | |
| 943 return NULL; | |
| 944 } | |
| 945 | |
| 946 *b->last++ = NGX_HTTP_V3_FRAME_HEADERS; | |
| 947 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last, n); | |
| 948 | |
| 949 hl = ngx_alloc_chain_link(c->pool); | |
| 950 if (hl == NULL) { | |
| 951 return NULL; | |
| 952 } | |
| 953 | |
| 954 hl->buf = b; | |
| 955 hl->next = cl; | |
| 956 | |
| 957 hlen = 1 + ngx_http_v3_encode_varlen_int(NULL, len); | |
| 958 | |
| 959 if (r->headers_out.content_length_n >= 0) { | |
| 960 len = 1 + ngx_http_v3_encode_varlen_int(NULL, | |
| 961 r->headers_out.content_length_n); | |
| 962 | |
| 963 b = ngx_create_temp_buf(c->pool, len); | |
| 964 if (b == NULL) { | |
| 965 NULL; | |
| 966 } | |
| 967 | |
| 968 *b->last++ = NGX_HTTP_V3_FRAME_DATA; | |
| 969 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last, | |
| 970 r->headers_out.content_length_n); | |
| 971 | |
| 972 bl = ngx_alloc_chain_link(c->pool); | |
| 973 if (bl == NULL) { | |
| 974 return NULL; | |
| 975 } | |
| 976 | |
| 977 bl->buf = b; | |
| 978 bl->next = NULL; | |
| 979 cl->next = bl; | |
| 980 } | |
| 981 | |
| 982 return hl; | |
| 983 } |