Mercurial > hg > nginx
annotate src/http/modules/proxy/ngx_http_proxy_header.c @ 452:23fb87bddda1 release-0.1.1
nginx-0.1.1-RELEASE import
*) Feature: the gzip_types directive.
*) Feature: the tcp_nodelay directive.
*) Feature: the send_lowat directive is working not only on OSes that
support kqueue NOTE_LOWAT, but also on OSes that support SO_SNDLOWAT.
*) Feature: the setproctitle() emulation for Linux and Solaris.
*) Bugfix: the "Location" header rewrite bug fixed while the proxying.
*) Bugfix: the ngx_http_chunked_module module may get caught in an
endless loop.
*) Bugfix: the /dev/poll module bugs fixed.
*) Bugfix: the responses were corrupted when the temporary files were
used while the proxying.
*) Bugfix: the unescaped requests were passed to the backend.
*) Bugfix: while the build configuration on Linux 2.4 the
--with-poll_module parameter was required.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 11 Oct 2004 15:07:03 +0000 |
parents | 42d11f017717 |
children | 295d97d70c69 |
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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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 |
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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 |
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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; |
416
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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 |
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29 #if 0 |
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30 h = headers_in->headers.elts; |
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31 for (i = 0; i < headers_in->headers.nelts; i++) { |
416
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32 #endif |
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33 |
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34 for (i = 0 ; /* void */; i++) { |
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35 |
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36 if (i >= part->nelts) { |
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37 if (part->next == NULL) { |
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38 break; |
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39 } |
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40 |
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41 part = part->next; |
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42 h = part->elts; |
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43 i = 0; |
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44 } |
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45 |
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46 /* ignore some headers */ |
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47 |
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48 if (&h[i] == headers_in->connection) { |
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49 continue; |
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50 } |
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51 |
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52 if (&h[i] == headers_in->x_pad) { |
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53 continue; |
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54 } |
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55 |
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56 if (p->accel) { |
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57 if (&h[i] == headers_in->date |
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58 || &h[i] == headers_in->accept_ranges) { |
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59 continue; |
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60 } |
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61 |
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62 if (&h[i] == headers_in->x_accel_expires |
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63 && !p->lcf->pass_x_accel_expires) |
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64 { |
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65 continue; |
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66 } |
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67 |
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68 if (&h[i] == headers_in->server && !p->lcf->pass_server) { |
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69 continue; |
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70 } |
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71 |
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72 if (&h[i] == headers_in->location) { |
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73 if (ngx_http_proxy_rewrite_location_header(p, &h[i]) |
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74 == NGX_ERROR) |
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75 { |
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76 return NGX_ERROR; |
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77 } |
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78 |
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79 continue; |
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80 } |
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81 } |
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82 |
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83 |
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84 /* "Content-Type" is handled specially */ |
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85 |
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86 if (&h[i] == headers_in->content_type) { |
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87 r->headers_out.content_type = &h[i]; |
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88 r->headers_out.content_type->key.len = 0; |
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89 continue; |
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90 } |
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91 |
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92 |
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93 /* copy some header pointers and set up r->headers_out */ |
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94 |
416
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95 if (!(ho = ngx_list_push(&r->headers_out.headers))) { |
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96 return NGX_ERROR; |
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97 } |
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98 |
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99 *ho = h[i]; |
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100 |
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101 if (&h[i] == headers_in->expires) { |
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102 r->headers_out.expires = ho; |
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nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
103 continue; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
104 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
105 |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
106 if (&h[i] == headers_in->cache_control) { |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
107 r->headers_out.cache_control = 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 |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
111 if (&h[i] == headers_in->etag) { |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
112 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
|
113 continue; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
114 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
115 |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
116 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
|
117 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
|
118 /* 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
|
119 continue; |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
120 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
121 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 /* |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
294
diff
changeset
|
123 * 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
|
124 * 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
|
125 * r->headers_out.server, |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 * r->headers_out.date, |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 * 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
|
128 */ |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 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
|
131 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
|
132 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
135 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
|
136 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
|
137 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 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
|
141 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
|
142 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
|
143 ho->value.len); |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 continue; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 } |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 } |
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 return NGX_OK; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 } |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
150 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
151 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
152 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
|
153 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
|
154 { |
290
87e73f067470
nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
155 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
|
156 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
|
157 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
|
158 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
|
159 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
160 r = p->request; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
161 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
|
162 |
416
b9bd635011de
nginx-0.0.10-2004-09-06-22:45:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
336
diff
changeset
|
163 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
|
164 return NGX_ERROR; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
165 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
166 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
167 if (uc->url.len > loc->value.len |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
168 || 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
|
169 { |
452 | 170 |
171 /* | |
172 * we do not set r->headers_out.location here to avoid the handling | |
173 * the local redirects without a host name by ngx_http_header_filter() | |
174 */ | |
175 | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
176 *location = *loc; |
190
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
177 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
178 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
179 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
180 /* TODO: proxy_reverse */ |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
181 |
452 | 182 r->headers_out.location = location; |
183 | |
184 location->key.len = 0; | |
185 location->key.data = NULL; | |
186 | |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
187 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
|
188 + (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
|
189 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
|
190 return NGX_ERROR; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
191 } |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
192 |
294
5cfd65b8b0a7
nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
290
diff
changeset
|
193 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
|
194 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
|
195 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
196 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
|
197 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
|
198 |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
199 return NGX_OK; |
02a715e85df1
nginx-0.0.1-2003-11-19-00:34:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
172
diff
changeset
|
200 } |