Mercurial > hg > nginx

annotate src/http/modules/proxy/ngx_http_proxy_cache.c @ 170:c42be4185301

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nginx-0.0.1-2003-11-03-01:56:18 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 02 Nov 2003 22:56:18 +0000
parents
children aff0e5d32af8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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1
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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3 #include <ngx_core.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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4 #include <ngx_http.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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5 #include <ngx_http_proxy_handler.h>
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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6
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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7
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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8 int ngx_http_proxy_get_cached_response(ngx_http_proxy_ctx_t *p)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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9 {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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10 int rc;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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11 char *last;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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12 ngx_http_request_t *r;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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13 ngx_http_proxy_cache_t *c;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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14 ngx_http_proxy_upstream_t *u;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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15
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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16 r = p->request;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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17
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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18 if (!(c = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_cache_t)))) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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19 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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20 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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21
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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22 c->ctx.file.fd = NGX_INVALID_FILE;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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23 c->ctx.file.log = r->connection->log;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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24 c->ctx.path = p->lcf->cache_path;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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25
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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26 u = p->lcf->upstream;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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27
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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28 c->ctx.key.len = u->url.len + r->uri.len - u->location->len + r->args.len;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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29 if (!(c->ctx.key.data = ngx_palloc(r->pool, c->ctx.key.len + 1))) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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30 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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31 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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32
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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33 last = ngx_cpymem(c->ctx.key.data, u->url.data, u->url.len);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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34
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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35 last = ngx_cpymem(last, r->uri.data + u->location->len,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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36 r->uri.len - u->location->len);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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37
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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38 if (r->args.len > 0) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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39 *(last++) = '?';
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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40 last = ngx_cpymem(last, r->args.data, r->args.len);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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41 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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42 *last = '\0';
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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43
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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44 p->header_in = ngx_create_temp_hunk(r->pool, p->lcf->header_buffer_size);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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45 if (p->header_in == NULL) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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46 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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47 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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48 p->header_in->tag = (ngx_hunk_tag_t) &ngx_http_proxy_module;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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49
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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50 c->ctx.buf = p->header_in;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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51 p->cache = c;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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52
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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53 rc = ngx_http_cache_get_file(r, &c->ctx);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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54
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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55 if (rc == NGX_OK || rc == NGX_STALE) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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56 p->header_in->pos += c->ctx.header.size;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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57
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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58 } else if (rc == NGX_DECLINED) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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59 p->header_in->pos += c->ctx.header.size;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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60 p->header_in->last = p->header_in->pos;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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61 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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62
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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63 return rc;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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64 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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65
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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66
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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67 int ngx_http_proxy_process_cached_response(ngx_http_proxy_ctx_t *p)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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68 {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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69 int rc, i;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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70 ngx_table_elt_t *h;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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71 ngx_http_request_t *r;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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72 ngx_http_proxy_cache_t *c;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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73
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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74 rc = ngx_http_proxy_parse_status_line(p);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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75
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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76 c = p->cache;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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77 r = p->request;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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78
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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79 if (rc == NGX_AGAIN) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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80 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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81 "\"proxy_header_buffer_size\" "
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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82 "is too small to read header from \"%s\"",
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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83 c->ctx.file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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84 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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85 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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86
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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87 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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88 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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89 "no valid HTTP/1.0 header in \"%s\"",
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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90 c->ctx.file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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91 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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92 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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93
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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94 /* rc == NGX_OK */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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95
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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96 c->status = p->status;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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97 c->status_line.len = p->status_end - p->status_start;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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98 c->status_line.data = ngx_palloc(r->pool, c->status_line.len + 1);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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99 if (c->status_line.data == NULL) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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100 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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101 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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102
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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103 ngx_cpystrn(c->status_line.data, p->status_start, c->status_line.len + 1);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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104
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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105 ngx_log_debug(r->connection->log, "http cache status %d '%s'" _
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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106 c->status _ c->status_line.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
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107
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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108 c->headers_in.headers = ngx_create_table(r->pool, 20);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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109
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
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110 for ( ;; ) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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111 rc = ngx_http_parse_header_line(r, p->header_in);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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112
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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113 if (rc == NGX_OK) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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114
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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115 /* a header line has been parsed successfully */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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116
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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117 h = ngx_http_add_header(&c->headers_in, ngx_http_proxy_headers_in);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
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parents:
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118 if (h == NULL) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
119 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
120 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
121
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122 h->key.len = r->header_name_end - r->header_name_start;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123 h->value.len = r->header_end - r->header_start;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
125 h->key.data = ngx_palloc(r->pool,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126 h->key.len + 1 + h->value.len + 1);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127 if (h->key.data == NULL) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
128 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 h->value.data = h->key.data + h->key.len + 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
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 for (i = 0; ngx_http_proxy_headers_in[i].name.len != 0; i++) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136 if (ngx_http_proxy_headers_in[i].name.len != h->key.len) {
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 (ngx_strcasecmp(ngx_http_proxy_headers_in[i].name.data,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
141 h->key.data) == 0)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 *((ngx_table_elt_t **) ((char *) &c->headers_in
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 + ngx_http_proxy_headers_in[i].offset)) = h;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 break;
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
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 ngx_log_debug(r->connection->log, "HTTP cache header: '%s: %s'" _
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
150 h->key.data _ h->value.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 continue;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 /* a whole header has been parsed successfully */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
157
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158 ngx_log_debug(r->connection->log, "HTTP header done");
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160 return ngx_http_proxy_send_cached_response(p);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162 } else if (rc == NGX_HTTP_PARSE_INVALID_HEADER) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165 "invalid header in \"%s\"",
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 c->ctx.file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170 /* rc == NGX_AGAIN || rc == NGX_HTTP_PARSE_TOO_LONG_HEADER */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 "\"proxy_header_buffer_size\" "
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 "is too small to read header from \"%s\"",
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175 c->ctx.file.name.data);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
179
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 int ngx_http_proxy_send_cached_response(ngx_http_proxy_ctx_t *p)
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182 {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183 int rc;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 ngx_hunk_t *h;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 ngx_chain_t out;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186 ngx_http_request_t *r;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 r = p->request;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190 r->headers_out.status = p->status;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 #if 0
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193 r->headers_out.content_length_n = -1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194 r->headers_out.content_length = NULL;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
195 #endif
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
196
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197 /* copy an cached header to r->headers_out */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
198
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199 if (ngx_http_proxy_copy_header(p, &p->cache->headers_in) == NGX_ERROR) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
200 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
201 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 /* we need to allocate all before the header would be sent */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205 if (!((h = ngx_calloc_hunk(r->pool)))) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 if (!((h->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t))))) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 return NGX_HTTP_INTERNAL_SERVER_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 rc = ngx_http_send_header(r);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 /* NEEDED ??? */ p->header_sent = 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 return rc;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 /* TODO: part in p->header_in */
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223 h->type = r->main ? NGX_HUNK_FILE : NGX_HUNK_FILE|NGX_HUNK_LAST;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 h->file_pos = p->header_in->pos - p->header_in->start;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226 h->file_last = h->file_pos + p->cache->ctx.header.length;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 h->file->fd = p->cache->ctx.file.fd;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 h->file->log = r->connection->log;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
231 out.hunk = h;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 out.next = NULL;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234 return ngx_http_output_filter(r, &out);
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
235 }