annotate src/http/ngx_http_variables.h @ 573:58475592100c release-0.3.8

nginx-0.3.8-RELEASE import *) Security: nginx now checks URI got from a backend in "X-Accel-Redirect" header line or in SSI file for the "/../" paths and zeroes. *) Change: nginx now does not treat the empty user name in the "Authorization" header line as valid one. *) Feature: the "ssl_session_timeout" directives of the ngx_http_ssl_module and ngx_imap_ssl_module. *) Feature: the "auth_http_header" directive of the ngx_imap_auth_http_module. *) Feature: the "add_header" directive. *) Feature: the ngx_http_realip_module. *) Feature: the new variables to use in the "log_format" directive: $bytes_sent, $apache_bytes_sent, $status, $time_gmt, $uri, $request_time, $request_length, $upstream_status, $upstream_response_time, $gzip_ratio, $uid_got, $uid_set, $connection, $pipe, and $msec. The parameters in the "%name" form will be canceled soon. *) Change: now the false variable values in the "if" directive are the empty string "" and string starting with "0". *) Bugfix: while using proxied or FastCGI-server nginx may leave connections and temporary files with client requests in open state. *) Bugfix: the worker processes did not flush the buffered logs on graceful exit. *) Bugfix: if the request URI was changes by the "rewrite" directive and the request was proxied in location given by regular expression, then the incorrect request was transferred to backend; the bug had appeared in 0.2.6. *) Bugfix: the "expires" directive did not remove the previous "Expires" header. *) Bugfix: nginx may stop to accept requests if the "rtsig" method and several worker processes were used. *) Bugfix: the "\"" and "\'" escape symbols were incorrectly handled in SSI commands. *) Bugfix: if the response was ended just after the SSI command and gzipping was used, then the response did not transferred complete or did not transferred at all.
author Igor Sysoev <igor@sysoev.ru>
date Wed, 09 Nov 2005 17:25:55 +0000
parents d6e48c08d718
children 4d9ea73a627a
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_HTTP_VARIABLES_H_INCLUDED_
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8 #define _NGX_HTTP_VARIABLES_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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13 #include <ngx_event.h>
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14 #include <ngx_http.h>
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17 typedef struct {
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18 unsigned len:29;
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20 unsigned valid:1;
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21 unsigned no_cachable:1;
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22 unsigned not_found:1;
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24 u_char *data;
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25 } ngx_http_variable_value_t;
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27 #define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, (u_char *) v }
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29 typedef struct ngx_http_variable_s ngx_http_variable_t;
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31 typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r,
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32 ngx_http_variable_value_t *v, uintptr_t data);
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35 #define NGX_HTTP_VAR_CHANGABLE 1
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36 #define NGX_HTTP_VAR_NOCACHABLE 2
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37 #define NGX_HTTP_VAR_INDEXED 4
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40 struct ngx_http_variable_s {
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41 ngx_str_t name; /* must be first to build the hash */
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42 ngx_http_get_variable_pt handler;
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43 uintptr_t data;
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44 ngx_uint_t flags;
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45 ngx_uint_t index;
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46 };
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49 ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name,
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50 ngx_uint_t flags);
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51 ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name);
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52 ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r,
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53 ngx_uint_t index);
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54 ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r,
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55 ngx_uint_t index);
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57 ngx_http_variable_value_t *ngx_http_get_variable(ngx_http_request_t *r,
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58 ngx_str_t *name);
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60 #define ngx_http_clear_variable(r, index) r->variables0[index].text.data = NULL;
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63 ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf);
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64 ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf);
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67 #endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */