Mercurial > hg > nginx
annotate src/http/modules/proxy/ngx_http_proxy_header.c @ 496:7ce7b31c3c83
release-0.1.22 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 24 Feb 2005 12:29:09 +0000 |
parents | c52408583801 |
children | d4ea69372b94 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 #include <ngx_http_proxy_handler.h> |
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11 |
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12 |
190
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13 static int ngx_http_proxy_rewrite_location_header(ngx_http_proxy_ctx_t *p, |
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14 ngx_table_elt_t *loc); |
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15 |
170
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16 int ngx_http_proxy_copy_header(ngx_http_proxy_ctx_t *p, |
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17 ngx_http_proxy_headers_in_t *headers_in) |
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18 { |
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19 ngx_uint_t i; |
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20 ngx_list_part_t *part; |
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21 ngx_table_elt_t *ho, *h; |
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22 ngx_http_request_t *r; |
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23 |
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24 r = p->request; |
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25 |
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26 part = &headers_in->headers.part; |
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27 h = part->elts; |
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28 |
479 | 29 for (i = 0; /* void */; i++) { |
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30 |
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31 if (i >= part->nelts) { |
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32 if (part->next == NULL) { |
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33 break; |
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34 } |
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35 |
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36 part = part->next; |
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37 h = part->elts; |
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38 i = 0; |
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39 } |
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40 |
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41 /* ignore some headers */ |
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42 |
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43 if (&h[i] == headers_in->connection) { |
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44 continue; |
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45 } |
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46 |
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47 if (&h[i] == headers_in->x_pad) { |
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48 continue; |
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49 } |
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50 |
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51 if (p->accel) { |
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52 if (&h[i] == headers_in->date |
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53 || &h[i] == headers_in->accept_ranges) { |
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54 continue; |
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55 } |
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56 |
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57 if (&h[i] == headers_in->x_accel_expires |
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58 && !p->lcf->pass_x_accel_expires) |
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59 { |
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60 continue; |
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61 } |
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62 |
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63 if (&h[i] == headers_in->server && !p->lcf->pass_server) { |
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64 continue; |
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65 } |
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66 |
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67 if (&h[i] == headers_in->location) { |
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68 if (ngx_http_proxy_rewrite_location_header(p, &h[i]) |
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69 == NGX_ERROR) |
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70 { |
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71 return NGX_ERROR; |
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72 } |
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73 |
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74 continue; |
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75 } |
170
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76 } |
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77 |
315
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78 |
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79 /* "Content-Type" is handled specially */ |
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80 |
170
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81 if (&h[i] == headers_in->content_type) { |
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82 r->headers_out.content_type = &h[i]; |
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83 r->headers_out.content_type->key.len = 0; |
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84 continue; |
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85 } |
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86 |
315
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87 |
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88 /* copy some header pointers and set up r->headers_out */ |
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89 |
416
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90 if (!(ho = ngx_list_push(&r->headers_out.headers))) { |
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91 return NGX_ERROR; |
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92 } |
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93 |
170
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94 *ho = h[i]; |
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95 |
315
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96 if (&h[i] == headers_in->expires) { |
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97 r->headers_out.expires = ho; |
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98 continue; |
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99 } |
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100 |
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101 if (&h[i] == headers_in->cache_control) { |
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102 r->headers_out.cache_control = ho; |
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103 continue; |
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104 } |
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105 |
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106 if (&h[i] == headers_in->etag) { |
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nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
107 r->headers_out.etag = ho; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
108 continue; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
109 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
110 |
479 | 111 #if (NGX_HTTP_GZIP) |
455 | 112 if (&h[i] == headers_in->content_encoding) { |
113 r->headers_out.content_encoding = ho; | |
114 continue; | |
115 } | |
479 | 116 #endif |
455 | 117 |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
118 if (&h[i] == headers_in->last_modified) { |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
119 r->headers_out.last_modified = ho; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
120 /* TODO: update r->headers_out.last_modified_time */ |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
121 continue; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
122 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
123 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 /* |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
125 * ngx_http_header_filter() passes the following headers as is |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
126 * and does not handle them specially if they are set: |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 * r->headers_out.server, |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 * r->headers_out.date, |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 * r->headers_out.content_length |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 */ |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 if (&h[i] == headers_in->server) { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 r->headers_out.server = ho; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
135 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 if (&h[i] == headers_in->date) { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 r->headers_out.date = ho; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 if (&h[i] == headers_in->content_length) { |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 r->headers_out.content_length = ho; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 r->headers_out.content_length_n = ngx_atoi(ho->value.data, |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 ho->value.len); |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
148 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
150 return NGX_OK; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
151 } |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
152 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
153 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
154 static int ngx_http_proxy_rewrite_location_header(ngx_http_proxy_ctx_t *p, |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
155 ngx_table_elt_t *loc) |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
156 { |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
157 u_char *last; |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
158 ngx_table_elt_t *location; |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
159 ngx_http_request_t *r; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
160 ngx_http_proxy_upstream_conf_t *uc; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
161 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
162 r = p->request; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
163 uc = p->lcf->upstream; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
164 |
416
b9bd635011de
nginx-0.0.10-2004-09-06-22:45:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
|
165 if (!(location = ngx_list_push(&r->headers_out.headers))) { |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
166 return NGX_ERROR; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
167 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
168 |
479 | 169 if (p->lcf->preserve_host |
170 || uc->url.len > loc->value.len | |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
171 || ngx_rstrncmp(loc->value.data, uc->url.data, uc->url.len) != 0) |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
172 { |
452 | 173 |
174 /* | |
175 * we do not set r->headers_out.location here to avoid the handling | |
176 * the local redirects without a host name by ngx_http_header_filter() | |
177 */ | |
178 | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
179 *location = *loc; |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
180 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
181 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
182 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
183 /* TODO: proxy_reverse */ |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
184 |
452 | 185 r->headers_out.location = location; |
186 | |
187 location->key.len = 0; | |
188 location->key.data = NULL; | |
189 | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
190 location->value.len = uc->location->len |
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
191 + (loc->value.len - uc->url.len) + 1; |
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
192 if (!(location->value.data = ngx_palloc(r->pool, location->value.len))) { |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
193 return NGX_ERROR; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
194 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
195 |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
196 last = ngx_cpymem(location->value.data, |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
197 uc->location->data, uc->location->len); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
198 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
199 ngx_cpystrn(last, loc->value.data + uc->url.len, |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
200 loc->value.len - uc->url.len + 1); |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
201 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
202 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
203 } |