annotate src/http/modules/ngx_http_memcached_module.c @ 130:82d695e3d662 NGINX_0_3_12

nginx 0.3.12 *) Security: if nginx was built with the ngx_http_realip_module and the "satisfy_any on" directive was used, then access and authorization directives did not work. The ngx_http_realip_module was not built and is not built by default. *) Change: the "$time_gmt" variable name was changed to "$time_local". *) Change: the "proxy_header_buffer_size" and "fastcgi_header_buffer_size" directives was renamed to the "proxy_buffer_size" and "fastcgi_buffer_size" directives. *) Feature: the ngx_http_memcached_module. *) Feature: the "proxy_buffering" directive. *) Bugfix: the changes in accept mutex handling when the "rtsig" method was used; bug appeared in 0.3.0. *) Bugfix: if the client sent the "Transfer-Encoding: chunked" header line, then nginx returns the 411 error. *) Bugfix: if the "auth_basic" directive was inherited from the http level, then the realm in the "WWW-Authenticate" header line was without the "Basic realm" text. *) Bugfix: if the "combined" format was explicitly specified in the "access_log" directive, then the empty lines was written to the log; bug appeared in 0.3.8. *) Bugfix: nginx did not run on the sparc platform under any OS except Solaris. *) Bugfix: now it is not necessary to place space between the quoted string and closing bracket in the "if" directive.
author Igor Sysoev <http://sysoev.ru>
date Sat, 26 Nov 2005 00:00:00 +0300
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children 36af50a5582d
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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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_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct {
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14 ngx_http_upstream_conf_t upstream;
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15 ngx_peers_t *peers;
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16 } ngx_http_memcached_loc_conf_t;
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17
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18
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19 typedef struct {
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20 size_t rest;
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21 ngx_http_request_t *request;
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22 } ngx_http_memcached_ctx_t;
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23
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24
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25 static ngx_int_t ngx_http_memcached_create_request(ngx_http_request_t *r);
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26 static ngx_int_t ngx_http_memcached_reinit_request(ngx_http_request_t *r);
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27 static ngx_int_t ngx_http_memcached_process_header(ngx_http_request_t *r);
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28 static ngx_int_t ngx_http_memcached_filter_init(void *data);
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29 static ngx_int_t ngx_http_memcached_filter(void *data, ssize_t bytes);
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30 static void ngx_http_memcached_abort_request(ngx_http_request_t *r);
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31 static void ngx_http_memcached_finalize_request(ngx_http_request_t *r,
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32 ngx_int_t rc);
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33
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34 static void *ngx_http_memcached_create_loc_conf(ngx_conf_t *cf);
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35 static char *ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf,
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36 void *parent, void *child);
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37
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38 static char *ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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39 void *conf);
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40
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41
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42 static ngx_conf_bitmask_t ngx_http_memcached_next_upstream_masks[] = {
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43 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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44 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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45 { ngx_string("invalid_response"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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46 { ngx_string("not_found"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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47 { ngx_null_string, 0 }
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48 };
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49
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50
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51 static ngx_command_t ngx_http_memcached_commands[] = {
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52
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53 { ngx_string("memcached_pass"),
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54 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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55 ngx_http_memcached_pass,
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56 NGX_HTTP_LOC_CONF_OFFSET,
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57 0,
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58 NULL },
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59
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60 { ngx_string("memcached_connect_timeout"),
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61 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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62 ngx_conf_set_msec_slot,
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63 NGX_HTTP_LOC_CONF_OFFSET,
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64 offsetof(ngx_http_memcached_loc_conf_t, upstream.connect_timeout),
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65 NULL },
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66
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67 { ngx_string("memcached_send_timeout"),
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68 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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69 ngx_conf_set_msec_slot,
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70 NGX_HTTP_LOC_CONF_OFFSET,
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71 offsetof(ngx_http_memcached_loc_conf_t, upstream.send_timeout),
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72 NULL },
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73
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74 { ngx_string("memcached_buffer_size"),
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75 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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76 ngx_conf_set_size_slot,
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77 NGX_HTTP_LOC_CONF_OFFSET,
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78 offsetof(ngx_http_memcached_loc_conf_t, upstream.buffer_size),
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79 NULL },
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80
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81 { ngx_string("memcached_read_timeout"),
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82 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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83 ngx_conf_set_msec_slot,
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84 NGX_HTTP_LOC_CONF_OFFSET,
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85 offsetof(ngx_http_memcached_loc_conf_t, upstream.read_timeout),
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86 NULL },
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87
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88 { ngx_string("memcached_next_upstream"),
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89 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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90 ngx_conf_set_bitmask_slot,
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91 NGX_HTTP_LOC_CONF_OFFSET,
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92 offsetof(ngx_http_memcached_loc_conf_t, upstream.next_upstream),
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93 &ngx_http_memcached_next_upstream_masks },
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94
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95 { ngx_string("memcached_upstream_max_fails"),
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96 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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97 ngx_conf_set_num_slot,
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98 NGX_HTTP_LOC_CONF_OFFSET,
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99 offsetof(ngx_http_memcached_loc_conf_t, upstream.max_fails),
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100 NULL },
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101
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102 { ngx_string("memcached_upstream_fail_timeout"),
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103 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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104 ngx_conf_set_sec_slot,
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105 NGX_HTTP_LOC_CONF_OFFSET,
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106 offsetof(ngx_http_memcached_loc_conf_t, upstream.fail_timeout),
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107 NULL },
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108
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109 ngx_null_command
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110 };
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111
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112
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113 ngx_http_module_t ngx_http_memcached_module_ctx = {
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114 NULL, /* preconfiguration */
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115 NULL, /* postconfiguration */
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116
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117 NULL, /* create main configuration */
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118 NULL, /* init main configuration */
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119
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120 NULL, /* create server configuration */
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121 NULL, /* merge server configuration */
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122
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123 ngx_http_memcached_create_loc_conf, /* create location configration */
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124 ngx_http_memcached_merge_loc_conf /* merge location configration */
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125 };
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126
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127
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128 ngx_module_t ngx_http_memcached_module = {
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129 NGX_MODULE_V1,
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130 &ngx_http_memcached_module_ctx, /* module context */
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131 ngx_http_memcached_commands, /* module directives */
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132 NGX_HTTP_MODULE, /* module type */
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133 NULL, /* init master */
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134 NULL, /* init module */
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135 NULL, /* init process */
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136 NULL, /* init thread */
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137 NULL, /* exit thread */
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138 NULL, /* exit process */
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139 NULL, /* exit master */
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140 NGX_MODULE_V1_PADDING
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parents:
diff changeset
141 };
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parents:
diff changeset
142
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parents:
diff changeset
143
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
144 #define NGX_HTTP_MEMCACHED_END (sizeof(ngx_http_memcached_end) - 1)
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
145 static u_char ngx_http_memcached_end[] = CRLF "END" CRLF;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
146
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parents:
diff changeset
147
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parents:
diff changeset
148 static ngx_int_t
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parents:
diff changeset
149 ngx_http_memcached_handler(ngx_http_request_t *r)
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parents:
diff changeset
150 {
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
151 ngx_int_t rc;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
152 ngx_http_upstream_t *u;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
153 ngx_http_memcached_ctx_t *ctx;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
154 ngx_http_memcached_loc_conf_t *mlcf;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
155
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
156 if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) {
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
157 return NGX_HTTP_NOT_ALLOWED;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
158 }
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
159
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
160 rc = ngx_http_discard_body(r);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
161
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
162 if (rc != NGX_OK && rc != NGX_AGAIN) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
163 return rc;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
164 }
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
165
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
166 if (ngx_http_set_content_type(r) != NGX_OK) {
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
167 return NGX_HTTP_INTERNAL_SERVER_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
168 }
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
169
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
170 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_memcached_module);
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
171
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parents:
diff changeset
172 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
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parents:
diff changeset
173 if (u == NULL) {
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parents:
diff changeset
174 return NGX_HTTP_INTERNAL_SERVER_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
175 }
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
176
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parents:
diff changeset
177 u->peer.log = r->connection->log;
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diff changeset
178 u->peer.log_error = NGX_ERROR_ERR;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
179 u->peer.peers = mlcf->peers;
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parents:
diff changeset
180 u->peer.tries = mlcf->peers->number;
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parents:
diff changeset
181 #if (NGX_THREADS)
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182 u->peer.lock = &r->connection->lock;
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parents:
diff changeset
183 #endif
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parents:
diff changeset
184
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parents:
diff changeset
185 u->output.tag = (ngx_buf_tag_t) &ngx_http_memcached_module;
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parents:
diff changeset
186
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parents:
diff changeset
187 u->conf = &mlcf->upstream;
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parents:
diff changeset
188
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parents:
diff changeset
189 u->create_request = ngx_http_memcached_create_request;
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parents:
diff changeset
190 u->reinit_request = ngx_http_memcached_reinit_request;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
191 u->process_header = ngx_http_memcached_process_header;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
192 u->abort_request = ngx_http_memcached_abort_request;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
193 u->finalize_request = ngx_http_memcached_finalize_request;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
194
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parents:
diff changeset
195 r->upstream = u;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
196
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parents:
diff changeset
197 ctx = ngx_palloc(r->pool, sizeof(ngx_http_memcached_ctx_t));
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
198 if (ctx == NULL) {
82d695e3d662 nginx 0.3.12
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diff changeset
199 return NGX_HTTP_INTERNAL_SERVER_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
200 }
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
201
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
202 ctx->rest = NGX_HTTP_MEMCACHED_END;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
203 ctx->request = r;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
204
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
205 u->input_filter_init = ngx_http_memcached_filter_init;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
206 u->input_filter = ngx_http_memcached_filter;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
207 u->input_filter_ctx = ctx;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
208
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
209 ngx_http_upstream_init(r);
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parents:
diff changeset
210
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
211 return NGX_DONE;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
212 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
213
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
214
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
215 static ngx_int_t
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
216 ngx_http_memcached_create_request(ngx_http_request_t *r)
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
217 {
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
218 size_t len;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
219 ngx_buf_t *b;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
220 ngx_chain_t *cl;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
221
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
222 len = sizeof("get ") - 1 + r->uri.len + sizeof(" " CRLF) - 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
223 if (r->args.len) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
224 len += 1+ r->args.len;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
225 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
226
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
227 b = ngx_create_temp_buf(r->pool, len);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
228 if (b == NULL) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
229 return NGX_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
230 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
231
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
232 cl = ngx_alloc_chain_link(r->pool);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
233 if (cl == NULL) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
234 return NGX_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
235 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
236
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
237 cl->buf = b;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
238 cl->next = NULL;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
239
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
240 r->upstream->request_bufs = cl;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
241
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
242 *b->last++ = 'g'; *b->last++ = 'e'; *b->last++ = 't'; *b->last++ = ' ';
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
243
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
244 b->last = ngx_copy(b->last, r->uri.data, r->uri.len);
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
245
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
246 if (r->args.len) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
247 *b->last++ = '?';
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
248 b->last = ngx_copy(b->last, r->args.data, r->args.len);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
249 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
250
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
251 #if (NGX_DEBUG)
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
252 {
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
253 ngx_str_t s;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
254
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
255 s.len = b->last - b->pos;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
256 s.data = b->pos;
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
257 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
258 "http memcached request: \"%V\"", &s);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
259 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
260 #endif
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
261
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
262 *b->last++ = ' '; *b->last++ = CR; *b->last++ = LF;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
263
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
264 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
265 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
266
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
267
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
268 static ngx_int_t
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
269 ngx_http_memcached_reinit_request(ngx_http_request_t *r)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
270 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
271 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
272 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
273
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
274
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
275 static ngx_int_t
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
276 ngx_http_memcached_process_header(ngx_http_request_t *r)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
277 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
278 u_char *p, *len;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
279 ngx_str_t line;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
280 ngx_http_upstream_t *u;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
281
82d695e3d662 nginx 0.3.12
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parents:
diff changeset
282 u = r->upstream;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
283
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
284 for (p = u->buffer.pos; p < u->buffer.last; p++) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
285 if (*p == LF) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
286 goto found;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
287 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
288 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
289
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
290 return NGX_AGAIN;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
291
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
292 found:
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
293
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
294 *p = '\0';
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
295
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
296 line.len = p - u->buffer.pos - 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
297 line.data = u->buffer.pos;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
298
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
299 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
300 "memcached: \"%V\"", &line);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
301
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
302 p = u->buffer.pos;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
303
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
304 if (ngx_strncmp(p, "VALUE ", sizeof("VALUE ") - 1) == 0) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
305
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
306 p += sizeof("VALUE ") - 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
307
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
308 if (ngx_strncmp(p, r->uri.data, r->uri.len) != 0) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
309 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
310 "memcached sent invalid key in response \"%V\" "
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
311 "for key \"%V\"",
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
312 &line, &r->uri);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
313
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
314 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
315 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
316
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
317 p += r->uri.len;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
318
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
319 if (*p++ != ' ') {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
320 goto no_valid;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
321 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
322
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
323 /* skip flags */
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
324
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
325 while (*p) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
326 if (*p++ == ' ') {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
327 goto length;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
328 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
329 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
330
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
331 goto no_valid;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
332
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
333 length:
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
334
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
335 len = p;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
336
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
337 while (*p && *p++ != CR) { /* void */ }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
338
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
339 r->headers_out.content_length_n = ngx_atoof(len, p - len - 1);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
340 if (r->headers_out.content_length_n == -1) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
341 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
342 "memcached sent invalid length in response \"%V\" "
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
343 "for key \"%V\"",
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
344 &line, &r->uri);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
345 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
346 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
347
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
348 u->headers_in.status_n = 200;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
349 u->buffer.pos = p + 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
350
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
351 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
352 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
353
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
354 if (ngx_strcmp(p, "END\x0d") == 0) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
355 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
356 "key: \"%V\" was not found by memcached", &r->uri);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
357
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
358 u->headers_in.status_n = 404;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
359
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
360 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
361 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
362
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
363 no_valid:
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
364
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
365 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
366 "memcached sent invalid response: \"%V\"", &line);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
367
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
368 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
369 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
370
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
371
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
372 static ngx_int_t
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
373 ngx_http_memcached_filter_init(void *data)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
374 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
375 ngx_http_memcached_ctx_t *ctx = data;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
376
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
377 ngx_http_upstream_t *u;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
378
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
379 u = ctx->request->upstream;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
380
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
381 u->length += NGX_HTTP_MEMCACHED_END;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
382
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
383 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
384 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
385
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
386
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
387 static ngx_int_t
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
388 ngx_http_memcached_filter(void *data, ssize_t bytes)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
389 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
390 ngx_http_memcached_ctx_t *ctx = data;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
391
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
392 u_char *last;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
393 ngx_buf_t *b;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
394 ngx_chain_t *cl, **ll;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
395 ngx_http_upstream_t *u;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
396
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
397 u = ctx->request->upstream;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
398 b = &u->buffer;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
399
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
400 if (u->length == ctx->rest) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
401
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
402 if (ngx_strncmp(b->last,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
403 ngx_http_memcached_end + NGX_HTTP_MEMCACHED_END
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
404 - ctx->rest,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
405 bytes) != 0)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
406 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
407 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
408 "memcached sent invalid trailer");
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
409 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
410
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
411 u->length -= bytes;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
412 ctx->rest -= bytes;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
413
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
414 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
415 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
416
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
417 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
418 ll = &cl->next;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
419 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
420
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
421 cl = ngx_chain_get_free_buf(ctx->request->pool, &u->free_bufs);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
422 if (cl == NULL) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
423 return NGX_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
424 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
425
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
426 cl->buf->flush = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
427 cl->buf->memory = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
428
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
429 *ll = cl;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
430
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
431 cl->buf->pos = b->last;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
432 b->last += bytes;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
433 cl->buf->last = b->last;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
434
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
435 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, ctx->request->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
436 "memcached filter bytes:%z size:%z length:%z rest:%z",
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
437 bytes, b->last - b->pos, u->length, ctx->rest);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
438
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
439 if (b->last - b->pos <= (ssize_t) (u->length - NGX_HTTP_MEMCACHED_END)) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
440 u->length -= bytes;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
441 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
442 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
443
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
444
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
445 last = b->pos + u->length - NGX_HTTP_MEMCACHED_END;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
446
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
447 if (ngx_strncmp(last, ngx_http_memcached_end, b->last - last) != 0) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
448 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
449 "memcached sent invalid trailer");
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
450 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
451
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
452 ctx->rest = u->length - (b->last - b->pos);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
453 b->last = last;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
454 cl->buf->last = last;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
455 u->length = ctx->rest;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
456
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
457 return NGX_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
458 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
459
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
460
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
461 static void
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
462 ngx_http_memcached_abort_request(ngx_http_request_t *r)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
463 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
464 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
465 "abort http memcached request");
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
466 return;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
467 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
468
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
469
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
470 static void
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
471 ngx_http_memcached_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
472 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
473 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
474 "finalize http memcached request");
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
475 return;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
476 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
477
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
478
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
479 static void *
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
480 ngx_http_memcached_create_loc_conf(ngx_conf_t *cf)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
481 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
482 ngx_http_memcached_loc_conf_t *conf;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
483
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
484 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_memcached_loc_conf_t));
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
485 if (conf == NULL) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
486 return NGX_CONF_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
487 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
488
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
489 /*
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
490 * set by ngx_pcalloc():
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
491 *
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
492 * conf->upstream.bufs.num = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
493 * conf->upstream.next_upstream = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
494 * conf->upstream.temp_path = NULL;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
495 * conf->upstream.schema = { 0, NULL };
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
496 * conf->upstream.uri = { 0, NULL };
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
497 * conf->upstream.location = NULL;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
498 *
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
499 * conf->peers = NULL;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
500 */
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
501
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
502 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
503 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
504 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
505
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
506 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
507
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
508 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
509 conf->upstream.fail_timeout = NGX_CONF_UNSET;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
510
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
511 /* "fastcgi_cyclic_temp_file" is disabled */
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
512 conf->upstream.cyclic_temp_file = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
513
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
514 /* the hardcoded values */
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
515 conf->upstream.send_lowat = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
516 conf->upstream.bufs.num = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
517 conf->upstream.busy_buffers_size = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
518 conf->upstream.max_temp_file_size = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
519 conf->upstream.temp_file_write_size = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
520 conf->upstream.pass_x_powered_by = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
521 conf->upstream.redirect_errors = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
522 conf->upstream.redirect_404 = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
523 conf->upstream.pass_server = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
524 conf->upstream.pass_date = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
525 conf->upstream.pass_request_headers = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
526 conf->upstream.pass_request_body = 0;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
527
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
528 return conf;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
529 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
530
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
531
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
532 static char *
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
533 ngx_http_memcached_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
534 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
535 ngx_http_memcached_loc_conf_t *prev = parent;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
536 ngx_http_memcached_loc_conf_t *conf = child;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
537
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
538 ngx_uint_t i;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
539
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
540 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
541 prev->upstream.connect_timeout, 60000);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
542
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
543 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
544 prev->upstream.send_timeout, 60000);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
545
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
546 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
547 prev->upstream.read_timeout, 60000);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
548
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
549 ngx_conf_merge_size_value(conf->upstream.buffer_size,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
550 prev->upstream.buffer_size,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
551 (size_t) ngx_pagesize);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
552
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
553 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
554 prev->upstream.next_upstream,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
555 (NGX_CONF_BITMASK_SET
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
556 |NGX_HTTP_UPSTREAM_FT_ERROR
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
557 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
558
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
559 ngx_conf_merge_unsigned_value(conf->upstream.max_fails,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
560 prev->upstream.max_fails, 1);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
561
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
562 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
563 prev->upstream.fail_timeout, 10);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
564
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
565 if (conf->peers && conf->peers->number > 1) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
566 for (i = 0; i < conf->peers->number; i++) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
567 conf->peers->peer[i].weight = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
568 conf->peers->peer[i].max_fails = conf->upstream.max_fails;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
569 conf->peers->peer[i].fail_timeout = conf->upstream.fail_timeout;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
570 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
571 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
572
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
573 return NGX_CONF_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
574 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
575
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
576
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
577 static char *
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
578 ngx_http_memcached_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
579 {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
580 ngx_http_memcached_loc_conf_t *lcf = conf;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
581
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
582 ngx_str_t *value;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
583 ngx_inet_upstream_t inet_upstream;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
584 ngx_http_core_loc_conf_t *clcf;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
585
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
586 if (lcf->upstream.schema.len) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
587 return "is duplicate";
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
588 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
589
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
590 value = cf->args->elts;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
591
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
592 ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t));
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
593
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
594 inet_upstream.name = value[1];
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
595 inet_upstream.url = value[1];
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
596
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
597 lcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
598 if (lcf->peers == NULL) {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
599 return NGX_CONF_ERROR;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
600 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
601
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
602 lcf->upstream.schema.len = sizeof("memcached://") - 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
603 lcf->upstream.schema.data = (u_char *) "memcached://";
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
604
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
605 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
606
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
607 clcf->handler = ngx_http_memcached_handler;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
608
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
609 lcf->upstream.location = clcf->name;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
610
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
611 if (clcf->name.data[clcf->name.len - 1] == '/') {
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
612 clcf->auto_redirect = 1;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
613 }
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
614
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
615 return NGX_CONF_OK;
82d695e3d662 nginx 0.3.12
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
616 }