Mercurial > hg > nginx-quic
annotate src/http/ngx_http_headers.c @ 165:894a01c6aea3
nginx-0.0.1-2003-10-29-20:39:05 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 29 Oct 2003 17:39:05 +0000 |
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children | edf29bb717da |
rev | line source |
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165
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nginx-0.0.1-2003-10-29-20:39:05 import
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 #include <ngx_http.h> |
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5 |
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6 |
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7 ngx_http_header_t ngx_http_headers_in[] = { |
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8 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) }, |
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9 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) }, |
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10 { ngx_string("If-Modified-Since"), |
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11 offsetof(ngx_http_headers_in_t, if_modified_since) }, |
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12 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) }, |
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13 |
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14 { ngx_string("Content-Length"), |
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15 offsetof(ngx_http_headers_in_t, content_length) }, |
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16 { ngx_string("Accept-Encoding"), |
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17 offsetof(ngx_http_headers_in_t, accept_encoding) }, |
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18 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) }, |
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19 #if 0 |
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20 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) }, |
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21 #endif |
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22 |
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23 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive) }, |
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24 |
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25 { ngx_null_string, 0 } |
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26 }; |
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27 |
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28 |
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29 ngx_http_header_t ngx_http_headers_out[] = { |
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30 { ngx_string("Server"), offsetof(ngx_http_headers_out_t, server) }, |
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31 { ngx_string("Date"), offsetof(ngx_http_headers_out_t, date) }, |
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32 { ngx_string("Content-Type"), |
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33 offsetof(ngx_http_headers_out_t, content_type) }, |
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34 { ngx_string("Content-Length"), |
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35 offsetof(ngx_http_headers_out_t, content_length) }, |
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36 { ngx_string("Content-Encoding"), |
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37 offsetof(ngx_http_headers_out_t, content_encoding) }, |
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38 { ngx_string("Location"), offsetof(ngx_http_headers_out_t, location) }, |
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39 { ngx_string("Last-Modified"), |
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40 offsetof(ngx_http_headers_out_t, last_modified) }, |
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41 { ngx_string("Accept-Ranges"), |
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42 offsetof(ngx_http_headers_out_t, accept_ranges) }, |
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43 |
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44 { ngx_null_string, 0 } |
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45 }; |
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46 |
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47 |
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48 ngx_table_elt_t *ngx_http_add_header(void *header, |
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49 ngx_http_header_t *http_headers) |
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50 { |
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51 int i, j, nelts; |
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52 char *prev; |
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53 ngx_table_t *headers; |
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54 ngx_table_elt_t *h, *new; |
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55 |
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56 headers = *(ngx_table_t **) header; |
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57 |
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58 prev = headers->elts; |
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59 nelts = headers->nelts; |
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60 |
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61 if (!(new = ngx_push_table(headers))) { |
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62 return NULL; |
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63 } |
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64 |
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65 if (prev == headers->elts) { |
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66 return new; |
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67 } |
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68 |
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69 /* |
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70 * When table is relocated we need to update pointers in r->headers_in, |
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71 * r->headers_out, etc. However this relocation should be very rare |
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72 * because we preallocate enough space for the number of the real world |
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73 * HTTP headers. |
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74 */ |
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75 |
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76 ngx_log_error(NGX_LOG_ALERT, headers->pool->log, 0, |
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77 "header table is small, %d elements", nelts); |
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78 |
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79 h = headers->elts; |
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80 for (i = 0; i < nelts; i++) { |
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81 if (h[i].key.len == 0) { |
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82 continue; |
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83 } |
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84 |
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85 for (j = 0; http_headers[j].name.len != 0; j++) { |
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86 if (http_headers[j].name.len != h[i].key.len) { |
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87 continue; |
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88 } |
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89 |
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90 if (ngx_strcasecmp(http_headers[j].name.data, h[i].key.data) == 0) { |
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91 *((ngx_table_elt_t **) |
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92 ((char *) header + http_headers[j].offset)) = &h[i]; |
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93 break; |
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94 } |
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95 } |
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96 } |
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97 |
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98 return new; |
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99 } |
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100 |