Mercurial > hg > nginx-site
annotate xml/ru/docs/http/ngx_http_headers_module.xml @ 290:15f81ed48a43
Documented regex captures in the "if" SSI command.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 28 Dec 2011 13:27:29 +0000 |
parents | 4c6d2c614d2c |
children | 7b6155ac373b |
rev | line source |
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222
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Removed redundant encoding specification.
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1 <?xml version="1.0"?> |
76
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2 |
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3 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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4 |
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5 <module name="Директивы модуля ngx_http_headers_module" |
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6 link="/ru/docs/http/ngx_http_headers_module.html" |
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7 lang="ru"> |
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8 |
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9 <section id="summary"> |
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10 |
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11 <para> |
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12 Модуль ngx_http_headers_module позволяет выдавать строки "Expires" |
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13 и "Cache-Control" и добавлять произвольные строки в заголовке ответа. |
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14 </para> |
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15 |
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16 </section> |
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17 |
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18 <section name="Примеры конфигурации" id="example"> |
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19 |
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20 <para> |
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21 <example> |
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22 expires 24h; |
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23 expires modified +24h; |
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24 expires @24h; |
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25 expires 0; |
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26 expires -1; |
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27 expires epoch; |
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28 add_header Cache-Control private; |
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29 </example> |
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30 </para> |
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31 |
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32 </section> |
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33 |
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34 |
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35 <section name="Директивы" id="directives"> |
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36 |
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37 <directive name="add_header"> |
271 | 38 <syntax><value>название</value> <value>значение</value></syntax> |
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The case <default/> is now language-agnostic.
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39 <default/> |
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40 <context>http, server, location</context> |
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41 |
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42 <para> |
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43 Директива добавляет строку в заголовке ответа при условии, что код ответа |
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44 равен 200, 204, 301, 302 или 304. |
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45 В значении можно использовать переменные. |
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46 </para> |
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47 |
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48 </directive> |
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49 |
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50 |
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51 <directive name="expires"> |
271 | 52 <syntax>[<literal>modified</literal>] <value>время</value></syntax> |
53 <syntax> | |
54 <literal>epoch</literal> | | |
55 <literal>max</literal> | | |
56 <literal>off</literal></syntax> | |
102
c76a257f3fd4
The directive name is now automatically printed in <default> and <syntax>.
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57 <default>off</default> |
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58 <context>http, server, location</context> |
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59 |
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60 <para> |
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61 Разрешает или запрещает добавлять или менять строки "Expires" |
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62 и "Cache-Control" в заголовке ответа. |
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63 В качестве параметра можно задать положительное или отрицательное |
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64 <link doc="../syntax.xml">время</link>. |
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65 </para> |
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66 |
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67 <para> |
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68 Время в строке "Expires" получается как сумма текущего времени |
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69 и времени, заданного в директиве. |
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70 Если используется параметр "modified" (0.7.0, 0.6.32), |
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71 то время получается как сумма |
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72 времени модификации файла и времени, заданного в директиве. |
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73 </para> |
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74 |
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75 <para> |
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76 Кроме того, с помощью префикса "@" можно задать время суток (0.7.9, 0.6.34): |
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77 <example> |
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78 expires @15h30m; |
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79 </example> |
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80 </para> |
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81 |
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82 <para> |
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83 Параметр "epoch" означает абсолютное время 1 января 1970 года 00:00:01 GMT. |
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84 Содержимое строки "Cache-Control" зависит от знака заданного времени: |
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85 <list type="bullet"> |
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86 |
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87 <listitem> |
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88 отрицательное время — "Cache-Control: no-cache". |
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89 </listitem> |
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90 |
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91 <listitem> |
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92 положительное время или равное нулю — "Cache-Control: max-age=#", |
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93 где "#" - это время в секундах, заданное в директиве. |
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94 </listitem> |
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95 |
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96 </list> |
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97 </para> |
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98 |
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99 <para> |
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100 Параметр "max" задаёт время 31 декабря 2037 23:55:55 GMT для строки "Expires" |
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101 и 10 лет для строки "Cache-Control". |
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102 </para> |
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103 |
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104 <para> |
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105 Параметр "off" запрещает добавлять или менять строки "Expires" |
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106 и "Cache-Control" в заголовке ответа. |
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107 </para> |
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108 |
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109 </directive> |
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110 |
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111 </section> |
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112 |
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113 </module> |