Mercurial > hg > nginx
annotate src/http/v3/ngx_http_v3_request.c @ 8226:268f4389130d quic
Refactored HTTP/3 parser.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Wed, 18 Mar 2020 13:46:35 +0300 |
| parents | 1307308c3cf1 |
| children | 31f7c697b6d9 |
| 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 static ngx_int_t ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, | |
| 14 ngx_str_t *name, ngx_str_t *value); | |
| 15 | |
| 16 | |
| 17 struct { | |
| 18 ngx_str_t name; | |
| 19 ngx_uint_t method; | |
| 20 } ngx_http_v3_methods[] = { | |
| 21 | |
| 22 { ngx_string("GET"), NGX_HTTP_GET }, | |
| 23 { ngx_string("POST"), NGX_HTTP_POST }, | |
| 24 { ngx_string("HEAD"), NGX_HTTP_HEAD }, | |
| 25 { ngx_string("OPTIONS"), NGX_HTTP_OPTIONS }, | |
| 26 { ngx_string("PROPFIND"), NGX_HTTP_PROPFIND }, | |
| 27 { ngx_string("PUT"), NGX_HTTP_PUT }, | |
| 28 { ngx_string("MKCOL"), NGX_HTTP_MKCOL }, | |
| 29 { ngx_string("DELETE"), NGX_HTTP_DELETE }, | |
| 30 { ngx_string("COPY"), NGX_HTTP_COPY }, | |
| 31 { ngx_string("MOVE"), NGX_HTTP_MOVE }, | |
| 32 { ngx_string("PROPPATCH"), NGX_HTTP_PROPPATCH }, | |
| 33 { ngx_string("LOCK"), NGX_HTTP_LOCK }, | |
| 34 { ngx_string("UNLOCK"), NGX_HTTP_UNLOCK }, | |
| 35 { ngx_string("PATCH"), NGX_HTTP_PATCH }, | |
| 36 { ngx_string("TRACE"), NGX_HTTP_TRACE } | |
| 37 }; | |
| 38 | |
| 39 | |
| 40 ngx_int_t | |
|
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41 ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b) |
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42 { |
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43 ngx_int_t rc; |
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44 ngx_str_t *name, *value; |
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45 ngx_connection_t *c; |
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46 ngx_http_v3_parse_headers_t *st; |
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47 enum { |
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48 sw_start = 0, |
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49 sw_prev, |
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50 sw_headers, |
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51 sw_last, |
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52 sw_done |
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53 }; |
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54 |
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55 c = r->connection; |
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56 st = r->h3_parse; |
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57 |
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58 if (st == NULL) { |
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59 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header"); |
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60 |
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61 st = ngx_pcalloc(c->pool, sizeof(ngx_http_v3_parse_headers_t)); |
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62 if (st == NULL) { |
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63 goto failed; |
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64 } |
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65 |
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66 r->h3_parse = st; |
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67 } |
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68 |
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69 switch (r->state) { |
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70 |
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71 case sw_prev: |
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72 r->state = sw_headers; |
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73 return NGX_OK; |
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74 |
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75 case sw_done: |
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76 goto done; |
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77 |
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78 case sw_last: |
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79 r->state = sw_done; |
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80 return NGX_OK; |
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81 |
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82 default: |
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83 break; |
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84 } |
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85 |
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86 for ( /* void */ ; b->pos < b->last; b->pos++) { |
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87 |
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88 rc = ngx_http_v3_parse_headers(c, st, *b->pos); |
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89 |
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90 if (rc == NGX_ERROR) { |
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91 goto failed; |
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92 } |
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93 |
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94 if (rc == NGX_AGAIN) { |
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95 continue; |
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96 } |
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97 |
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98 name = &st->header_rep.header.name; |
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99 value = &st->header_rep.header.value; |
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100 |
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101 if (r->state == sw_start |
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102 && ngx_http_v3_process_pseudo_header(r, name, value) != NGX_OK) |
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103 { |
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104 if (rc == NGX_DONE) { |
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105 r->state = sw_last; |
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106 } else { |
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107 r->state = sw_prev; |
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108 } |
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109 |
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110 } else if (rc == NGX_DONE) { |
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111 r->state = sw_done; |
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112 } |
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113 |
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114 if (r->state == sw_start) { |
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115 continue; |
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116 } |
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117 |
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118 r->header_name_start = name->data; |
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119 r->header_name_end = name->data + name->len; |
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120 r->header_start = value->data; |
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121 r->header_end = value->data + value->len; |
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122 r->header_hash = ngx_hash_key(name->data, name->len); |
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123 |
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124 /* XXX r->lowcase_index = i; */ |
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125 |
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126 return NGX_OK; |
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127 } |
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128 |
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129 return NGX_AGAIN; |
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130 |
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131 failed: |
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132 |
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133 return r->state == sw_start ? NGX_HTTP_PARSE_INVALID_REQUEST |
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134 : NGX_HTTP_PARSE_INVALID_HEADER; |
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135 |
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136 done: |
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137 |
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138 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 parse header done"); |
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139 |
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140 return NGX_HTTP_PARSE_HEADER_DONE; |
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141 } |
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142 |
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143 #if 0 |
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144 ngx_int_t |
| 8215 | 145 ngx_http_v3_parse_header(ngx_http_request_t *r, ngx_buf_t *b, ngx_uint_t pseudo) |
| 146 { | |
| 147 u_char *p, ch; | |
| 148 ngx_str_t name, value; | |
| 149 ngx_int_t rc; | |
| 150 ngx_uint_t length, index, insert_count, sign, base, delta_base, | |
| 151 huffman, dynamic, offset; | |
| 152 ngx_connection_t *c; | |
| 153 ngx_http_v3_header_t *h; | |
| 154 enum { | |
| 155 sw_start = 0, | |
| 156 sw_length, | |
| 157 sw_length_1, | |
| 158 sw_length_2, | |
| 159 sw_length_3, | |
| 160 sw_header_block, | |
| 161 sw_req_insert_count, | |
| 162 sw_delta_base, | |
| 163 sw_read_delta_base, | |
| 164 sw_header, | |
| 165 sw_old_header, | |
| 166 sw_header_ri, | |
| 167 sw_header_pbi, | |
| 168 sw_header_lri, | |
| 169 sw_header_lpbi, | |
| 170 sw_header_l_name_len, | |
| 171 sw_header_l_name, | |
| 172 sw_header_value_len, | |
| 173 sw_header_read_value_len, | |
| 174 sw_header_value | |
| 175 } state; | |
| 176 | |
| 177 c = r->connection; | |
| 178 | |
| 179 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 180 "http3 parse header, pseudo:%ui", pseudo); | |
| 181 | |
| 182 if (r->state == sw_old_header) { | |
| 183 r->state = sw_header; | |
| 184 return NGX_OK; | |
| 185 } | |
| 186 | |
| 187 length = r->h3_length; | |
| 188 index = r->h3_index; | |
| 189 insert_count = r->h3_insert_count; | |
| 190 sign = r->h3_sign; | |
| 191 delta_base = r->h3_delta_base; | |
| 192 huffman = r->h3_huffman; | |
| 193 dynamic = r->h3_dynamic; | |
| 194 offset = r->h3_offset; | |
| 195 | |
| 196 name.data = r->header_name_start; | |
| 197 name.len = r->header_name_end - r->header_name_start; | |
| 198 value.data = r->header_start; | |
| 199 value.len = r->header_end - r->header_start; | |
| 200 | |
| 201 if (r->state == sw_start) { | |
| 202 length = 1; | |
| 203 } | |
| 204 | |
| 205 again: | |
| 206 | |
| 207 state = r->state; | |
| 208 | |
| 209 if (state == sw_header && length == 0) { | |
| 210 r->state = sw_start; | |
| 211 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 212 } | |
| 213 | |
| 214 for (p = b->pos; p < b->last; p++) { | |
| 215 | |
| 216 if (state >= sw_header_block && length-- == 0) { | |
| 217 goto failed; | |
| 218 } | |
| 219 | |
| 220 ch = *p; | |
| 221 | |
| 222 switch (state) { | |
| 223 | |
| 224 case sw_start: | |
| 225 | |
| 226 if (ch != NGX_HTTP_V3_FRAME_HEADERS) { | |
| 227 goto failed; | |
| 228 } | |
| 229 | |
| 230 r->request_start = p; | |
| 231 state = sw_length; | |
| 232 break; | |
| 233 | |
| 234 case sw_length: | |
| 235 | |
| 236 length = ch; | |
| 237 if (length & 0xc0) { | |
| 238 state = sw_length_1; | |
| 239 break; | |
| 240 } | |
| 241 | |
| 242 state = sw_header_block; | |
| 243 break; | |
| 244 | |
| 245 case sw_length_1: | |
| 246 | |
| 247 length = (length << 8) + ch; | |
| 248 if ((length & 0xc000) != 0x4000) { | |
| 249 state = sw_length_2; | |
| 250 break; | |
| 251 } | |
| 252 | |
| 253 length &= 0x3fff; | |
| 254 state = sw_header_block; | |
| 255 break; | |
| 256 | |
| 257 case sw_length_2: | |
| 258 | |
| 259 length = (length << 8) + ch; | |
| 260 if ((length & 0xc00000) != 0x800000) { | |
| 261 state = sw_length_3; | |
| 262 break; | |
| 263 } | |
| 264 | |
|
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265 length &= 0x3fffff; |
|
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266 state = sw_header_block; |
|
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267 break; |
| 8215 | 268 |
| 269 case sw_length_3: | |
| 270 | |
|
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271 length = (length << 8) + ch; |
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272 length &= 0x3fffffff; |
| 8215 | 273 state = sw_header_block; |
| 274 break; | |
| 275 | |
| 276 case sw_header_block: | |
| 277 | |
| 278 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 279 "http3 header block length:%ui", length); | |
| 280 | |
| 281 if (ch != 0xff) { | |
| 282 insert_count = ch; | |
| 283 state = sw_delta_base; | |
| 284 break; | |
| 285 } | |
| 286 | |
| 287 insert_count = 0; | |
| 288 state = sw_req_insert_count; | |
| 289 break; | |
| 290 | |
| 291 case sw_req_insert_count: | |
| 292 | |
| 293 insert_count = (insert_count << 7) + (ch & 0x7f); | |
| 294 if (ch & 0x80) { | |
| 295 break; | |
| 296 } | |
| 297 | |
| 298 insert_count += 0xff; | |
| 299 state = sw_delta_base; | |
| 300 break; | |
| 301 | |
| 302 case sw_delta_base: | |
| 303 | |
| 304 sign = (ch & 0x80) ? 1 : 0; | |
| 305 delta_base = ch & 0x7f; | |
| 306 | |
| 307 if (delta_base != 0x7f) { | |
| 308 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 309 "http3 header block " | |
| 310 "insert_count:%ui, sign:%ui, delta_base:%ui", | |
| 311 insert_count, sign, delta_base); | |
| 312 goto done; | |
| 313 } | |
| 314 | |
| 315 delta_base = 0; | |
| 316 state = sw_read_delta_base; | |
| 317 break; | |
| 318 | |
| 319 case sw_read_delta_base: | |
| 320 | |
| 321 delta_base = (delta_base << 7) + (ch & 0x7f); | |
| 322 if (ch & 0x80) { | |
| 323 break; | |
| 324 } | |
| 325 | |
| 326 delta_base += 0x7f; | |
| 327 | |
| 328 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 329 "http3 header block " | |
| 330 "insert_count:%ui, sign:%ui, delta_base:%ui", | |
| 331 insert_count, sign, delta_base); | |
| 332 goto done; | |
| 333 | |
| 334 case sw_header: | |
| 335 | |
| 336 index = 0; | |
| 337 huffman = 0; | |
| 338 ngx_str_null(&name); | |
| 339 ngx_str_null(&value); | |
| 340 | |
| 341 if (ch & 0x80) { | |
| 342 /* Indexed Header Field */ | |
| 343 | |
| 344 dynamic = (ch & 0x40) ? 0 : 1; | |
| 345 index = ch & 0x3f; | |
| 346 | |
| 347 if (index != 0x3f) { | |
| 348 goto done; | |
| 349 } | |
| 350 | |
| 351 index = 0; | |
| 352 state = sw_header_ri; | |
| 353 break; | |
| 354 } | |
| 355 | |
| 356 if (ch & 0x40) { | |
| 357 /* Literal Header Field With Name Reference */ | |
| 358 | |
| 359 dynamic = (ch & 0x10) ? 0 : 1; | |
| 360 index = ch & 0x0f; | |
| 361 | |
| 362 if (index != 0x0f) { | |
| 363 state = sw_header_value_len; | |
| 364 break; | |
| 365 } | |
| 366 | |
| 367 index = 0; | |
| 368 state = sw_header_lri; | |
| 369 break; | |
| 370 } | |
| 371 | |
| 372 if (ch & 0x20) { | |
| 373 /* Literal Header Field Without Name Reference */ | |
| 374 | |
| 375 huffman = (ch & 0x08) ? 1 : 0; | |
| 376 name.len = ch & 0x07; | |
| 377 | |
| 378 if (name.len == 0) { | |
| 379 goto failed; | |
| 380 } | |
| 381 | |
| 382 if (name.len != 0x07) { | |
| 383 offset = 0; | |
| 384 state = sw_header_l_name; | |
| 385 break; | |
| 386 } | |
| 387 | |
| 388 name.len = 0; | |
| 389 state = sw_header_l_name_len; | |
| 390 break; | |
| 391 } | |
| 392 | |
| 393 if (ch & 10) { | |
| 394 /* Indexed Header Field With Post-Base Index */ | |
| 395 | |
| 396 dynamic = 2; | |
| 397 index = ch & 0x0f; | |
| 398 | |
| 399 if (index != 0x0f) { | |
| 400 goto done; | |
| 401 } | |
| 402 | |
| 403 index = 0; | |
| 404 state = sw_header_pbi; | |
| 405 break; | |
| 406 } | |
| 407 | |
| 408 /* Literal Header Field With Post-Base Name Reference */ | |
| 409 | |
| 410 dynamic = 2; | |
| 411 index = ch & 0x07; | |
| 412 | |
| 413 if (index != 0x07) { | |
| 414 state = sw_header_value_len; | |
| 415 break; | |
| 416 } | |
| 417 | |
| 418 index = 0; | |
| 419 state = sw_header_lpbi; | |
| 420 break; | |
| 421 | |
| 422 case sw_header_ri: | |
| 423 | |
| 424 index = (index << 7) + (ch & 0x7f); | |
| 425 if (ch & 0x80) { | |
| 426 break; | |
| 427 } | |
| 428 | |
| 429 index += 0x3f; | |
| 430 goto done; | |
| 431 | |
| 432 case sw_header_pbi: | |
| 433 | |
| 434 index = (index << 7) + (ch & 0x7f); | |
| 435 if (ch & 0x80) { | |
| 436 break; | |
| 437 } | |
| 438 | |
| 439 index += 0x0f; | |
| 440 goto done; | |
| 441 | |
| 442 case sw_header_lri: | |
| 443 | |
| 444 index = (index << 7) + (ch & 0x7f); | |
| 445 if (ch & 0x80) { | |
| 446 break; | |
| 447 } | |
| 448 | |
| 449 index += 0x0f; | |
| 450 state = sw_header_value_len; | |
| 451 break; | |
| 452 | |
| 453 case sw_header_lpbi: | |
| 454 | |
| 455 index = (index << 7) + (ch & 0x7f); | |
| 456 if (ch & 0x80) { | |
| 457 break; | |
| 458 } | |
| 459 | |
| 460 index += 0x07; | |
| 461 state = sw_header_value_len; | |
| 462 break; | |
| 463 | |
| 464 | |
| 465 case sw_header_l_name_len: | |
| 466 | |
| 467 name.len = (name.len << 7) + (ch & 0x7f); | |
| 468 if (ch & 0x80) { | |
| 469 break; | |
| 470 } | |
| 471 | |
| 472 name.len += 0x07; | |
| 473 offset = 0; | |
| 474 state = sw_header_l_name; | |
| 475 break; | |
| 476 | |
| 477 case sw_header_l_name: | |
| 478 if (offset++ == 0) { | |
| 479 name.data = p; | |
| 480 } | |
| 481 | |
| 482 if (offset != name.len) { | |
| 483 break; | |
| 484 } | |
| 485 | |
| 486 if (huffman) { | |
| 487 if (ngx_http_v3_decode_huffman(c, &name) != NGX_OK) { | |
| 488 goto failed; | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 state = sw_header_value_len; | |
| 493 break; | |
| 494 | |
| 495 case sw_header_value_len: | |
| 496 | |
| 497 huffman = (ch & 0x80) ? 1 : 0; | |
| 498 value.len = ch & 0x7f; | |
| 499 | |
| 500 if (value.len == 0) { | |
| 501 value.data = p; | |
| 502 goto done; | |
| 503 } | |
| 504 | |
| 505 if (value.len != 0x7f) { | |
| 506 offset = 0; | |
| 507 state = sw_header_value; | |
| 508 break; | |
| 509 } | |
| 510 | |
| 511 value.len = 0; | |
| 512 state = sw_header_read_value_len; | |
| 513 break; | |
| 514 | |
| 515 case sw_header_read_value_len: | |
| 516 | |
| 517 value.len = (value.len << 7) + (ch & 0x7f); | |
| 518 if (ch & 0x80) { | |
| 519 break; | |
| 520 } | |
| 521 | |
| 522 value.len += 0x7f; | |
| 523 offset = 0; | |
| 524 state = sw_header_value; | |
| 525 break; | |
| 526 | |
| 527 case sw_header_value: | |
| 528 | |
| 529 if (offset++ == 0) { | |
| 530 value.data = p; | |
| 531 } | |
| 532 | |
| 533 if (offset != value.len) { | |
| 534 break; | |
| 535 } | |
| 536 | |
| 537 if (huffman) { | |
| 538 if (ngx_http_v3_decode_huffman(c, &value) != NGX_OK) { | |
| 539 goto failed; | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 goto done; | |
| 544 | |
| 545 case sw_old_header: | |
| 546 | |
| 547 break; | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 b->pos = p; | |
| 552 r->state = state; | |
| 553 r->h3_length = length; | |
| 554 r->h3_index = index; | |
| 555 r->h3_insert_count = insert_count; | |
| 556 r->h3_sign = sign; | |
| 557 r->h3_delta_base = delta_base; | |
| 558 r->h3_huffman = huffman; | |
| 559 r->h3_dynamic = dynamic; | |
| 560 r->h3_offset = offset; | |
| 561 | |
| 562 /* XXX fix large reallocations */ | |
| 563 r->header_name_start = name.data; | |
| 564 r->header_name_end = name.data + name.len; | |
| 565 r->header_start = value.data; | |
| 566 r->header_end = value.data + value.len; | |
| 567 | |
| 568 /* XXX r->lowcase_index = i; */ | |
| 569 | |
| 570 return NGX_AGAIN; | |
| 571 | |
| 572 done: | |
| 573 | |
| 574 b->pos = p + 1; | |
| 575 r->state = sw_header; | |
| 576 r->h3_length = length; | |
| 577 r->h3_insert_count = insert_count; | |
| 578 r->h3_sign = sign; | |
| 579 r->h3_delta_base = delta_base; | |
| 580 | |
| 581 if (state < sw_header) { | |
| 582 if (ngx_http_v3_check_insert_count(c, insert_count) != NGX_OK) { | |
| 583 return NGX_DONE; | |
| 584 } | |
| 585 | |
| 586 goto again; | |
| 587 } | |
| 588 | |
| 589 if (sign == 0) { | |
| 590 base = insert_count + delta_base; | |
| 591 } else { | |
| 592 base = insert_count - delta_base - 1; | |
| 593 } | |
| 594 | |
| 595 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 596 "http3 header %s[%ui], base:%ui, \"%V\":\"%V\"", | |
| 597 dynamic ? "dynamic" : "static", index, base, &name, &value); | |
| 598 | |
| 599 if (name.data == NULL) { | |
| 600 | |
| 601 if (dynamic == 2) { | |
| 602 index = base - index - 1; | |
| 603 } else if (dynamic == 1) { | |
| 604 index += base; | |
| 605 } | |
| 606 | |
| 607 h = ngx_http_v3_lookup_table(c, dynamic, index); | |
| 608 if (h == NULL) { | |
| 609 goto failed; | |
| 610 } | |
| 611 | |
| 612 name = h->name; | |
| 613 | |
| 614 if (value.data == NULL) { | |
| 615 value = h->value; | |
| 616 } | |
| 617 } | |
| 618 | |
|
8219
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Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
619 /* 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
|
620 |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
621 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
|
622 if (p == NULL) { |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
623 return NGX_ERROR; |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
624 } |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
625 |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
626 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
|
627 name.data = p; |
|
1307308c3cf1
Temporary fix for header null-termination in HTTP/3.
Roman Arutyunyan <arut@nginx.com>
parents:
8215
diff
changeset
|
628 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
|
629 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
|
630 |
| 8215 | 631 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
| 632 "http3 header \"%V\":\"%V\"", &name, &value); | |
| 633 | |
| 634 if (pseudo) { | |
| 635 rc = ngx_http_v3_process_pseudo_header(r, &name, &value); | |
| 636 | |
| 637 if (rc == NGX_ERROR) { | |
| 638 goto failed; | |
| 639 } | |
| 640 | |
| 641 if (rc == NGX_OK) { | |
| 642 r->request_end = p + 1; | |
| 643 goto again; | |
| 644 } | |
| 645 | |
| 646 /* rc == NGX_DONE */ | |
| 647 | |
| 648 r->state = sw_old_header; | |
| 649 } | |
| 650 | |
| 651 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 652 "http3 header left:%ui", length); | |
| 653 | |
| 654 r->header_name_start = name.data; | |
| 655 r->header_name_end = name.data + name.len; | |
| 656 r->header_start = value.data; | |
| 657 r->header_end = value.data + value.len; | |
| 658 r->header_hash = ngx_hash_key(name.data, name.len); /* XXX */ | |
| 659 | |
| 660 /* XXX r->lowcase_index = i; */ | |
| 661 | |
| 662 return NGX_OK; | |
| 663 | |
| 664 failed: | |
| 665 | |
| 666 return NGX_HTTP_PARSE_INVALID_REQUEST; | |
| 667 } | |
|
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Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
668 #endif |
| 8215 | 669 |
| 670 | |
| 671 static ngx_int_t | |
| 672 ngx_http_v3_process_pseudo_header(ngx_http_request_t *r, ngx_str_t *name, | |
| 673 ngx_str_t *value) | |
| 674 { | |
| 675 ngx_uint_t i; | |
| 676 ngx_connection_t *c; | |
| 677 | |
|
8226
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Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
678 if (name->len == 0 || name->data[0] != ':') { |
|
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
679 return NGX_DECLINED; |
|
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
680 } |
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Refactored HTTP/3 parser.
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parents:
8219
diff
changeset
|
681 |
| 8215 | 682 c = r->connection; |
| 683 | |
| 684 if (name->len == 7 && ngx_strncmp(name->data, ":method", 7) == 0) { | |
| 685 r->method_start = value->data; | |
| 686 r->method_end = value->data + value->len; | |
| 687 | |
| 688 for (i = 0; i < sizeof(ngx_http_v3_methods) | |
| 689 / sizeof(ngx_http_v3_methods[0]); i++) | |
| 690 { | |
| 691 if (value->len == ngx_http_v3_methods[i].name.len | |
| 692 && ngx_strncmp(value->data, ngx_http_v3_methods[i].name.data, | |
| 693 value->len) == 0) | |
| 694 { | |
| 695 r->method = ngx_http_v3_methods[i].method; | |
| 696 break; | |
| 697 } | |
| 698 } | |
| 699 | |
| 700 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 701 "http3 method \"%V\" %ui", value, r->method); | |
| 702 return NGX_OK; | |
| 703 } | |
| 704 | |
| 705 if (name->len == 5 && ngx_strncmp(name->data, ":path", 5) == 0) { | |
| 706 r->uri_start = value->data; | |
| 707 r->uri_end = value->data + value->len; | |
| 708 | |
| 709 if (ngx_http_parse_uri(r) != NGX_OK) { | |
| 710 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 711 "client sent invalid :path header: \"%V\"", value); | |
| 712 return NGX_ERROR; | |
| 713 } | |
| 714 | |
| 715 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 716 "http3 path \"%V\"", value); | |
| 717 | |
| 718 return NGX_OK; | |
| 719 } | |
| 720 | |
| 721 if (name->len == 7 && ngx_strncmp(name->data, ":scheme", 7) == 0) { | |
| 722 r->schema_start = value->data; | |
| 723 r->schema_end = value->data + value->len; | |
| 724 | |
| 725 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 726 "http3 schema \"%V\"", value); | |
| 727 | |
| 728 return NGX_OK; | |
| 729 } | |
| 730 | |
| 731 if (name->len == 10 && ngx_strncmp(name->data, ":authority", 10) == 0) { | |
| 732 r->host_start = value->data; | |
| 733 r->host_end = value->data + value->len; | |
| 734 | |
| 735 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 736 "http3 authority \"%V\"", value); | |
| 737 | |
| 738 return NGX_OK; | |
| 739 } | |
| 740 | |
|
8226
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
741 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, |
|
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
742 "http3 unknown pseudo header \"%V\" \"%V\"", name, value); |
| 8215 | 743 |
|
8226
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
744 return NGX_OK; |
| 8215 | 745 } |
| 746 | |
| 747 | |
| 748 ngx_chain_t * | |
| 749 ngx_http_v3_create_header(ngx_http_request_t *r) | |
| 750 { | |
| 751 u_char *p; | |
| 752 size_t len, hlen, n; | |
| 753 ngx_buf_t *b; | |
| 754 ngx_uint_t i, j; | |
| 755 ngx_chain_t *hl, *cl, *bl; | |
| 756 ngx_list_part_t *part; | |
| 757 ngx_table_elt_t *header; | |
| 758 ngx_connection_t *c; | |
| 759 ngx_http_core_loc_conf_t *clcf; | |
| 760 | |
| 761 c = r->connection; | |
| 762 | |
| 763 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 create header"); | |
| 764 | |
| 765 /* XXX support chunked body in the chunked filter */ | |
| 766 if (r->headers_out.content_length_n == -1) { | |
| 767 return NULL; | |
| 768 } | |
| 769 | |
| 770 len = 0; | |
| 771 | |
| 772 if (r->headers_out.status == NGX_HTTP_OK) { | |
| 773 len += ngx_http_v3_encode_prefix_int(NULL, 25, 6); | |
| 774 | |
| 775 } else { | |
| 776 len += 3 + ngx_http_v3_encode_prefix_int(NULL, 25, 4) | |
| 777 + ngx_http_v3_encode_prefix_int(NULL, 3, 7); | |
| 778 } | |
| 779 | |
| 780 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 781 | |
| 782 if (r->headers_out.server == NULL) { | |
| 783 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { | |
| 784 n = sizeof(NGINX_VER) - 1; | |
| 785 | |
| 786 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { | |
| 787 n = sizeof(NGINX_VER_BUILD) - 1; | |
| 788 | |
| 789 } else { | |
| 790 n = sizeof("nginx") - 1; | |
| 791 } | |
| 792 | |
| 793 len += ngx_http_v3_encode_prefix_int(NULL, 92, 4) | |
| 794 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n; | |
| 795 } | |
| 796 | |
| 797 if (r->headers_out.date == NULL) { | |
| 798 len += ngx_http_v3_encode_prefix_int(NULL, 6, 4) | |
| 799 + ngx_http_v3_encode_prefix_int(NULL, ngx_cached_http_time.len, | |
| 800 7) | |
| 801 + ngx_cached_http_time.len; | |
| 802 } | |
| 803 | |
| 804 if (r->headers_out.content_type.len) { | |
| 805 n = r->headers_out.content_type.len; | |
| 806 | |
| 807 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 808 && r->headers_out.charset.len) | |
| 809 { | |
| 810 n += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
| 811 } | |
| 812 | |
| 813 len += ngx_http_v3_encode_prefix_int(NULL, 53, 4) | |
| 814 + ngx_http_v3_encode_prefix_int(NULL, n, 7) + n; | |
| 815 } | |
| 816 | |
| 817 if (r->headers_out.content_length_n == 0) { | |
| 818 len += ngx_http_v3_encode_prefix_int(NULL, 4, 6); | |
| 819 | |
| 820 } else { | |
| 821 len += ngx_http_v3_encode_prefix_int(NULL, 4, 4) + 1 + NGX_OFF_T_LEN; | |
| 822 } | |
| 823 | |
| 824 if (r->headers_out.last_modified == NULL | |
| 825 && r->headers_out.last_modified_time != -1) | |
| 826 { | |
| 827 len += ngx_http_v3_encode_prefix_int(NULL, 10, 4) + 1 | |
| 828 + sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT"); | |
| 829 } | |
| 830 | |
| 831 /* XXX location */ | |
| 832 | |
| 833 #if (NGX_HTTP_GZIP) | |
| 834 if (r->gzip_vary) { | |
| 835 if (clcf->gzip_vary) { | |
| 836 /* Vary: Accept-Encoding */ | |
| 837 len += ngx_http_v3_encode_prefix_int(NULL, 59, 6); | |
| 838 | |
| 839 } else { | |
| 840 r->gzip_vary = 0; | |
| 841 } | |
| 842 } | |
| 843 #endif | |
| 844 | |
| 845 part = &r->headers_out.headers.part; | |
| 846 header = part->elts; | |
| 847 | |
| 848 for (i = 0; /* void */; i++) { | |
| 849 | |
| 850 if (i >= part->nelts) { | |
| 851 if (part->next == NULL) { | |
| 852 break; | |
| 853 } | |
| 854 | |
| 855 part = part->next; | |
| 856 header = part->elts; | |
| 857 i = 0; | |
| 858 } | |
| 859 | |
| 860 if (header[i].hash == 0) { | |
| 861 continue; | |
| 862 } | |
| 863 | |
| 864 len += ngx_http_v3_encode_prefix_int(NULL, header[i].key.len, 3) | |
| 865 + header[i].key.len | |
| 866 + ngx_http_v3_encode_prefix_int(NULL, header[i].value.len, 7 ) | |
| 867 + header[i].value.len; | |
| 868 } | |
| 869 | |
| 870 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "http3 header len:%uz", len); | |
| 871 | |
| 872 b = ngx_create_temp_buf(r->pool, len); | |
| 873 if (b == NULL) { | |
| 874 return NULL; | |
| 875 } | |
| 876 | |
| 877 *b->last++ = 0; | |
| 878 *b->last++ = 0; | |
| 879 | |
| 880 if (r->headers_out.status == NGX_HTTP_OK) { | |
| 881 /* :status: 200 */ | |
| 882 *b->last = 0xc0; | |
| 883 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 6); | |
| 884 | |
| 885 } else { | |
| 886 /* :status: 200 */ | |
| 887 *b->last = 0x70; | |
| 888 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 25, 4); | |
| 889 *b->last = 0; | |
| 890 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 3, 7); | |
|
8226
268f4389130d
Refactored HTTP/3 parser.
Roman Arutyunyan <arut@nginx.com>
parents:
8219
diff
changeset
|
891 b->last = ngx_sprintf(b->last, "%03ui", r->headers_out.status); |
| 8215 | 892 } |
| 893 | |
| 894 if (r->headers_out.server == NULL) { | |
| 895 if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { | |
| 896 p = (u_char *) NGINX_VER; | |
| 897 n = sizeof(NGINX_VER) - 1; | |
| 898 | |
| 899 } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { | |
| 900 p = (u_char *) NGINX_VER_BUILD; | |
| 901 n = sizeof(NGINX_VER_BUILD) - 1; | |
| 902 | |
| 903 } else { | |
| 904 p = (u_char *) "nginx"; | |
| 905 n = sizeof("nginx") - 1; | |
| 906 } | |
| 907 | |
| 908 /* server */ | |
| 909 *b->last = 0x70; | |
| 910 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 92, 4); | |
| 911 *b->last = 0; | |
| 912 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7); | |
| 913 b->last = ngx_cpymem(b->last, p, n); | |
| 914 } | |
| 915 | |
| 916 if (r->headers_out.date == NULL) { | |
| 917 /* date */ | |
| 918 *b->last = 0x70; | |
| 919 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 6, 4); | |
| 920 *b->last = 0; | |
| 921 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 922 ngx_cached_http_time.len, 7); | |
| 923 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data, | |
| 924 ngx_cached_http_time.len); | |
| 925 } | |
| 926 | |
| 927 if (r->headers_out.content_type.len) { | |
| 928 n = r->headers_out.content_type.len; | |
| 929 | |
| 930 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 931 && r->headers_out.charset.len) | |
| 932 { | |
| 933 n += sizeof("; charset=") - 1 + r->headers_out.charset.len; | |
| 934 } | |
| 935 | |
| 936 /* content-type: text/plain */ | |
| 937 *b->last = 0x70; | |
| 938 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 53, 4); | |
| 939 *b->last = 0; | |
| 940 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, n, 7); | |
| 941 | |
| 942 p = b->last; | |
| 943 b->last = ngx_copy(b->last, r->headers_out.content_type.data, | |
| 944 r->headers_out.content_type.len); | |
| 945 | |
| 946 if (r->headers_out.content_type_len == r->headers_out.content_type.len | |
| 947 && r->headers_out.charset.len) | |
| 948 { | |
| 949 b->last = ngx_cpymem(b->last, "; charset=", | |
| 950 sizeof("; charset=") - 1); | |
| 951 b->last = ngx_copy(b->last, r->headers_out.charset.data, | |
| 952 r->headers_out.charset.len); | |
| 953 | |
| 954 /* update r->headers_out.content_type for possible logging */ | |
| 955 | |
| 956 r->headers_out.content_type.len = b->last - p; | |
| 957 r->headers_out.content_type.data = p; | |
| 958 } | |
| 959 } | |
| 960 | |
| 961 if (r->headers_out.content_length_n == 0) { | |
| 962 /* content-length: 0 */ | |
| 963 *b->last = 0xc0; | |
| 964 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 6); | |
| 965 | |
| 966 } else if (r->headers_out.content_length_n > 0) { | |
| 967 /* content-length: 0 */ | |
| 968 *b->last = 0x70; | |
| 969 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 4, 4); | |
| 970 p = b->last++; | |
| 971 b->last = ngx_sprintf(b->last, "%O", r->headers_out.content_length_n); | |
| 972 *p = b->last - p - 1; | |
| 973 } | |
| 974 | |
| 975 if (r->headers_out.last_modified == NULL | |
| 976 && r->headers_out.last_modified_time != -1) | |
| 977 { | |
| 978 /* last-modified */ | |
| 979 *b->last = 0x70; | |
| 980 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 10, 4); | |
| 981 p = b->last++; | |
| 982 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time); | |
| 983 *p = b->last - p - 1; | |
| 984 } | |
| 985 | |
| 986 #if (NGX_HTTP_GZIP) | |
| 987 if (r->gzip_vary) { | |
| 988 /* vary: accept-encoding */ | |
| 989 *b->last = 0xc0; | |
| 990 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, 59, 6); | |
| 991 } | |
| 992 #endif | |
| 993 | |
| 994 part = &r->headers_out.headers.part; | |
| 995 header = part->elts; | |
| 996 | |
| 997 for (i = 0; /* void */; i++) { | |
| 998 | |
| 999 if (i >= part->nelts) { | |
| 1000 if (part->next == NULL) { | |
| 1001 break; | |
| 1002 } | |
| 1003 | |
| 1004 part = part->next; | |
| 1005 header = part->elts; | |
| 1006 i = 0; | |
| 1007 } | |
| 1008 | |
| 1009 if (header[i].hash == 0) { | |
| 1010 continue; | |
| 1011 } | |
| 1012 | |
| 1013 *b->last = 0x30; | |
| 1014 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 1015 header[i].key.len, | |
| 1016 3); | |
| 1017 for (j = 0; j < header[i].key.len; j++) { | |
| 1018 *b->last++ = ngx_tolower(header[i].key.data[j]); | |
| 1019 } | |
| 1020 | |
| 1021 *b->last = 0; | |
| 1022 b->last = (u_char *) ngx_http_v3_encode_prefix_int(b->last, | |
| 1023 header[i].value.len, | |
| 1024 7); | |
| 1025 b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len); | |
| 1026 } | |
| 1027 | |
| 1028 cl = ngx_alloc_chain_link(c->pool); | |
| 1029 if (cl == NULL) { | |
| 1030 return NULL; | |
| 1031 } | |
| 1032 | |
| 1033 cl->buf = b; | |
| 1034 cl->next = NULL; | |
| 1035 | |
| 1036 n = b->last - b->pos; | |
| 1037 | |
| 1038 len = 1 + ngx_http_v3_encode_varlen_int(NULL, n); | |
| 1039 | |
| 1040 b = ngx_create_temp_buf(c->pool, len); | |
| 1041 if (b == NULL) { | |
| 1042 return NULL; | |
| 1043 } | |
| 1044 | |
| 1045 *b->last++ = NGX_HTTP_V3_FRAME_HEADERS; | |
| 1046 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last, n); | |
| 1047 | |
| 1048 hl = ngx_alloc_chain_link(c->pool); | |
| 1049 if (hl == NULL) { | |
| 1050 return NULL; | |
| 1051 } | |
| 1052 | |
| 1053 hl->buf = b; | |
| 1054 hl->next = cl; | |
| 1055 | |
| 1056 hlen = 1 + ngx_http_v3_encode_varlen_int(NULL, len); | |
| 1057 | |
| 1058 if (r->headers_out.content_length_n >= 0) { | |
| 1059 len = 1 + ngx_http_v3_encode_varlen_int(NULL, | |
| 1060 r->headers_out.content_length_n); | |
| 1061 | |
| 1062 b = ngx_create_temp_buf(c->pool, len); | |
| 1063 if (b == NULL) { | |
| 1064 NULL; | |
| 1065 } | |
| 1066 | |
| 1067 *b->last++ = NGX_HTTP_V3_FRAME_DATA; | |
| 1068 b->last = (u_char *) ngx_http_v3_encode_varlen_int(b->last, | |
| 1069 r->headers_out.content_length_n); | |
| 1070 | |
| 1071 bl = ngx_alloc_chain_link(c->pool); | |
| 1072 if (bl == NULL) { | |
| 1073 return NULL; | |
| 1074 } | |
| 1075 | |
| 1076 bl->buf = b; | |
| 1077 bl->next = NULL; | |
| 1078 cl->next = bl; | |
| 1079 } | |
| 1080 | |
| 1081 return hl; | |
| 1082 } |