Mercurial > hg > nginx-site
annotate xml/ru/docs/stream/ngx_stream_js_module.xml @ 2903:44f3b52c0679
Documented the $proxy_protocol_tlv_ variable.
author | Yaroslav Zhuravlev <yar@nginx.com> |
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date | Wed, 19 Oct 2022 12:33:55 +0100 |
parents | 9719a0184a67 |
children | 3cc6e38246b1 |
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1 <?xml version="1.0"?> |
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2 |
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3 <!-- |
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4 Copyright (C) Nginx, Inc. |
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5 --> |
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6 |
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7 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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8 |
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9 <module name="Модуль ngx_stream_js_module" |
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10 link="/ru/docs/stream/ngx_stream_js_module.html" |
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11 lang="ru" |
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12 rev="34"> |
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13 |
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14 <section id="summary"> |
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15 |
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16 <para> |
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17 Модуль <literal>ngx_stream_js_module</literal> позволяет задавать |
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18 обработчики на <link doc="../njs/index.xml">njs</link> — |
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19 подмножестве языка JavaScript. |
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20 </para> |
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21 |
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22 <para> |
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23 Инструкция по сборке и установке доступны |
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24 <link doc="../njs/install.xml">здесь</link>. |
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25 </para> |
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26 |
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27 </section> |
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28 |
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29 |
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30 <section id="example" name="Пример конфигурации"> |
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31 |
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32 <para> |
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33 Пример работает начиная с версии |
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34 <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link>. |
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35 <example> |
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36 stream { |
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37 js_import stream.js; |
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38 |
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39 js_set $bar stream.bar; |
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40 js_set $req_line stream.req_line; |
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41 |
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42 server { |
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43 listen 12345; |
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44 |
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45 js_preread stream.preread; |
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46 return $req_line; |
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47 } |
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48 |
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49 server { |
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50 listen 12346; |
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51 |
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52 js_access stream.access; |
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53 proxy_pass 127.0.0.1:8000; |
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54 js_filter stream.header_inject; |
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55 } |
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56 } |
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57 |
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58 http { |
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59 server { |
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60 listen 8000; |
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61 location / { |
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62 return 200 $http_foo\n; |
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63 } |
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64 } |
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65 } |
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66 </example> |
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67 </para> |
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68 |
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69 <para> |
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70 Файл <path>stream.js</path>: |
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71 <example> |
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72 var line = ''; |
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73 |
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74 function bar(s) { |
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75 var v = s.variables; |
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76 s.log("hello from bar() handler!"); |
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77 return "bar-var" + v.remote_port + "; pid=" + v.pid; |
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78 } |
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79 |
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80 function preread(s) { |
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81 s.on('upload', function (data, flags) { |
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82 var n = data.indexOf('\n'); |
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83 if (n != -1) { |
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84 line = data.substr(0, n); |
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85 s.done(); |
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86 } |
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87 }); |
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88 } |
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89 |
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90 function req_line(s) { |
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91 return line; |
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92 } |
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93 |
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94 // Чтение строки HTTP-запроса. |
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95 // Получение байт в 'req' до того как |
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96 // будет прочитана строка запроса. |
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97 // Добавление HTTP-заголовка в запрос клиента |
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98 |
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99 var my_header = 'Foo: foo'; |
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100 function header_inject(s) { |
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101 var req = ''; |
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102 s.on('upload', function(data, flags) { |
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103 req += data; |
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104 var n = req.search('\n'); |
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105 if (n != -1) { |
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106 var rest = req.substr(n + 1); |
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107 req = req.substr(0, n + 1); |
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108 s.send(req + my_header + '\r\n' + rest, flags); |
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109 s.off('upload'); |
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110 } |
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111 }); |
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112 } |
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113 |
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114 function access(s) { |
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115 if (s.remoteAddress.match('^192.*')) { |
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116 s.deny(); |
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117 return; |
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118 } |
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119 |
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120 s.allow(); |
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121 } |
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122 |
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123 export default {bar, preread, req_line, header_inject, access}; |
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124 </example> |
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125 </para> |
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126 |
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127 </section> |
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128 |
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129 |
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130 <section id="directives" name="Директивы"> |
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131 |
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132 <directive name="js_access"> |
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133 <syntax><value>функция</value> | <value>модуль.функция</value></syntax> |
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134 <default/> |
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135 <context>stream</context> |
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136 <context>server</context> |
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137 |
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138 <para> |
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139 Задаёт функцию njs, которая будет вызываться в |
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140 <link doc="stream_processing.xml" id="access_phase">access</link>-фазе. |
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141 Начиная с <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link> |
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142 можно ссылаться на функцию модуля. |
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143 </para> |
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144 |
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145 <para> |
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146 Функция вызывается однократно при первом достижении сессией |
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147 <link doc="stream_processing.xml" id="access_phase">access</link>-фазы. |
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148 Функция вызывается со следующими аргументами: |
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149 |
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150 <list type="tag"> |
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151 <tag-name><literal>s</literal></tag-name> |
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152 <tag-desc> |
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153 объект <link doc="../njs/reference.xml" id="stream">stream-сессии</link> |
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154 </tag-desc> |
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155 |
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156 </list> |
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157 </para> |
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158 |
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159 <para> |
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160 В этой фазе может происходить инициализация, |
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161 также при помощи метода |
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162 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
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163 может регистрироваться вызов |
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164 для каждого входящего блока данных пока не будет вызван один из методов: |
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165 <link doc="../njs/reference.xml" id="s_done"><literal>s.done()</literal></link> |
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166 <link doc="../njs/reference.xml" id="s_decline"><literal>s.decline()</literal></link>, |
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167 <link doc="../njs/reference.xml" id="s_allow"><literal>s.allow()</literal></link>. |
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168 При вызове любого из этих методов обработка сессии |
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169 переходит на <link doc="stream_processing.xml">следующую фазу</link> |
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170 и все текущие вызовы |
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171 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
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172 сбрасываются. |
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173 </para> |
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174 |
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175 <para> |
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176 <note> |
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177 Так как обработчик <literal>js_access</literal> |
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178 должен сразу возвращать результат, |
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179 то поддерживаются только синхронные операции. |
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180 Таким образом, асинхронные операции, например |
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181 <link doc="../njs/reference.xml" id="ngx_fetch"><literal>ngx.fetch()</literal></link> |
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182 или |
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183 <link doc="../njs/reference.xml" id="settimeout"><literal>setTimeout()</literal></link>, |
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184 не поддерживаются. |
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185 </note> |
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186 </para> |
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187 |
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188 </directive> |
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189 |
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190 |
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191 <directive name="js_fetch_buffer_size"> |
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192 <syntax><value>размер</value></syntax> |
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193 <default>16k</default> |
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194 <context>stream</context> |
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195 <context>server</context> |
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196 <appeared-in>0.7.4</appeared-in> |
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197 |
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198 <para> |
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199 Задаёт <value>размер</value> буфера, который будет использоваться |
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200 для чтения и записи для |
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201 <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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202 </para> |
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203 |
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204 </directive> |
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205 |
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206 |
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207 <directive name="js_fetch_ciphers"> |
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208 <syntax><value>шифры</value></syntax> |
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209 <default>HIGH:!aNULL:!MD5</default> |
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210 <context>stream</context> |
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211 <context>server</context> |
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212 <appeared-in>0.7.0</appeared-in> |
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213 |
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214 <para> |
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215 Описывает разрешённые шифры для HTTPS-соединений |
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216 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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217 Шифры задаются в формате, поддерживаемом библиотекой OpenSSL. |
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218 </para> |
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219 |
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220 <para> |
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221 Полный список можно посмотреть с помощью команды |
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222 “<command>openssl ciphers</command>”. |
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223 </para> |
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224 |
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225 </directive> |
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226 |
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227 |
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228 <directive name="js_fetch_max_response_buffer_size"> |
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229 <syntax><value>размер</value></syntax> |
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230 <default>1m</default> |
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231 <context>stream</context> |
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232 <context>server</context> |
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233 <appeared-in>0.7.4</appeared-in> |
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234 |
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235 <para> |
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236 Задаёт максимальный <value>размер</value> ответа, полученного |
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237 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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238 </para> |
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239 |
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240 </directive> |
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241 |
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242 |
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243 <directive name="js_fetch_protocols"> |
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244 <syntax> |
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245 [<literal>TLSv1</literal>] |
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246 [<literal>TLSv1.1</literal>] |
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247 [<literal>TLSv1.2</literal>] |
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248 [<literal>TLSv1.3</literal>]</syntax> |
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249 <default>TLSv1 TLSv1.1 TLSv1.2</default> |
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250 <context>stream</context> |
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251 <context>server</context> |
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252 <appeared-in>0.7.0</appeared-in> |
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253 |
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254 <para> |
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255 Разрешает указанные протоколы для HTTPS-соединений |
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256 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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257 </para> |
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258 |
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259 </directive> |
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260 |
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261 |
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262 <directive name="js_fetch_timeout"> |
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263 <syntax><value>время</value></syntax> |
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264 <default>60s</default> |
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265 <context>stream</context> |
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266 <context>server</context> |
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267 <appeared-in>0.7.4</appeared-in> |
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268 |
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269 <para> |
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270 Задаёт таймаут при чтении и записи |
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271 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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272 Таймаут устанавливается не на всю передачу ответа, |
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273 а только между двумя операциями чтения. |
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274 Если по истечении этого времени данные не передавались, соединение закрывается. |
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275 </para> |
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276 |
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277 </directive> |
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278 |
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279 |
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280 <directive name="js_fetch_trusted_certificate"> |
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281 <syntax><value>файл</value></syntax> |
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282 <default/> |
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283 <context>stream</context> |
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284 <context>server</context> |
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285 <appeared-in>0.7.0</appeared-in> |
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286 |
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287 <para> |
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288 Задаёт <value>файл</value> с доверенными сертификатами CA в формате PEM, |
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289 используемыми при |
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290 <link doc="../njs/reference.xml" id="fetch_verify">проверке</link> |
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291 HTTPS-сертификата |
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292 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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293 </para> |
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294 |
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295 </directive> |
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296 |
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297 |
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298 <directive name="js_fetch_verify"> |
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299 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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300 <default>on</default> |
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301 <context>stream</context> |
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302 <context>server</context> |
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303 <appeared-in>0.7.4</appeared-in> |
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304 |
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305 <para> |
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306 Разрешает или запрещает проверку сертификата HTTPS-сервера |
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307 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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308 </para> |
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309 |
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310 </directive> |
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311 |
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312 |
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313 <directive name="js_fetch_verify_depth"> |
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314 <syntax><value>число</value></syntax> |
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315 <default>100</default> |
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316 <context>stream</context> |
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317 <context>server</context> |
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318 <appeared-in>0.7.0</appeared-in> |
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319 |
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320 <para> |
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321 Устанавливает глубину проверки в цепочке HTTPS-сертификатов |
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322 при помощи <link doc="../njs/reference.xml" id="ngx_fetch">Fetch API</link>. |
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323 </para> |
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324 |
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325 </directive> |
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326 |
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327 |
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328 <directive name="js_filter"> |
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329 <syntax><value>функция</value> | <value>модуль.функция</value></syntax> |
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330 <default/> |
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331 <context>stream</context> |
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332 <context>server</context> |
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333 |
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334 <para> |
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335 Задаёт фильтр данных. |
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336 Начиная с <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link> |
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337 можно ссылаться на функцию модуля. |
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338 Функция фильтра вызывается однократно при первом достижении сессией |
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339 <link doc="stream_processing.xml" id="content_phase">content</link>-фазы. |
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340 </para> |
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341 |
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342 <para> |
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343 Функция фильтра вызывается со следующими аргументами: |
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344 <list type="tag"> |
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345 <tag-name><literal>s</literal></tag-name> |
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346 <tag-desc> |
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347 объект <link doc="../njs/reference.xml" id="stream">stream-сессии</link> |
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348 </tag-desc> |
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349 |
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350 </list> |
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351 </para> |
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352 |
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353 <para> |
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354 В этой фазе может происходить инициализация, |
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355 также при помощи метода |
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356 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
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357 может регистрироваться вызов |
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358 для каждого входящего блока данных. |
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359 Для отмены регистрации вызова и отмены фильтра |
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360 можно использовать метод |
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361 <link doc="../njs/reference.xml" id="s_off"><literal>s.off()</literal></link>. |
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362 </para> |
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363 |
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364 <para> |
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365 <note> |
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366 Так как обработчик <literal>js_filter</literal> |
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367 должен сразу возвращать результат, |
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368 то поддерживаются только синхронные операции. |
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369 Таким образом, асинхронные операции, например |
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370 <link doc="../njs/reference.xml" id="ngx_fetch"><literal>ngx.fetch()</literal></link> |
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371 или |
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372 <link doc="../njs/reference.xml" id="settimeout"><literal>setTimeout()</literal></link>, |
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373 не поддерживаются. |
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374 </note> |
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375 </para> |
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376 |
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377 </directive> |
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378 |
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379 |
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380 <directive name="js_import"> |
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381 <syntax><value>модуль.js</value> | |
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382 <value>имя_экспорта from модуль.js</value></syntax> |
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383 <default/> |
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384 <context>stream</context> |
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385 <context>server</context> |
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386 <appeared-in>0.4.0</appeared-in> |
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387 |
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388 <para> |
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389 Импортирует модуль, позволяющий задавать обработчики location и переменных |
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390 на njs. |
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391 <literal>Имя_экспорта</literal> является пространством имён |
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392 при доступе к функциям модуля. |
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393 Если <literal>имя_экспорта</literal> не задано, |
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394 то пространством имён будет являться имя модуля. |
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395 <example> |
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396 js_import stream.js; |
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397 </example> |
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398 В примере при доступе к экспорту в качестве |
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399 пространства имён используется имя модуля <literal>stream</literal>. |
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400 Если импортируемый модуль экспортирует <literal>foo()</literal>, |
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401 то для доступа используется <literal>stream.foo</literal>. |
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402 </para> |
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403 |
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404 <para> |
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405 Директив <literal>js_import</literal> может быть несколько. |
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406 </para> |
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407 |
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408 <para> |
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409 <note> |
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410 Директива может быть указана |
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411 на уровне <literal>server</literal> |
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412 начиная с <link doc="../njs/changes.xml" id="njs0.7.7">0.7.7</link>. |
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413 </note> |
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414 </para> |
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415 |
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416 </directive> |
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417 |
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418 |
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419 <directive name="js_include"> |
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420 <syntax><value>файл</value></syntax> |
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421 <default/> |
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422 <context>stream</context> |
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423 |
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424 <para> |
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425 Задаёт файл, который позволяет задавать обработчики server и переменных на njs: |
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426 <example> |
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427 nginx.conf: |
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428 js_include stream.js; |
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429 js_set $js_addr address; |
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430 server { |
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431 listen 127.0.0.1:12345; |
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432 return $js_addr; |
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433 } |
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434 |
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435 stream.js: |
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436 function address(s) { |
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437 return s.remoteAddress; |
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438 } |
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439 </example> |
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440 </para> |
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441 |
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442 <para> |
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443 Директива устарела в версии |
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444 <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link> |
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|
445 и была удалена в версии |
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|
446 <link doc="../njs/changes.xml" id="njs0.7.1">0.7.1</link>. |
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|
447 Вместо неё следует использовать директиву <link id="js_import"/>. |
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|
448 </para> |
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449 |
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450 </directive> |
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|
451 |
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Documented http and stream nginScript modules.
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changeset
|
452 |
2901
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Documented the js_preload_object directive.
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453 <directive name="js_preload_object"> |
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Documented the js_preload_object directive.
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454 <syntax><value>имя.json</value> | |
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|
455 <value>имя</value> from <value>файл.json</value></syntax> |
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Documented the js_preload_object directive.
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|
456 <default/> |
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Documented the js_preload_object directive.
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|
457 <context>stream</context> |
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Documented the js_preload_object directive.
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|
458 <context>server</context> |
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Documented the js_preload_object directive.
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|
459 <appeared-in>0.7.8</appeared-in> |
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Documented the js_preload_object directive.
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parents:
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changeset
|
460 |
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Documented the js_preload_object directive.
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changeset
|
461 <para> |
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|
462 Предварительно загружает неизменяемый объект во время конфигурации. |
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Documented the js_preload_object directive.
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|
463 <literal>Имя</literal> используется в качестве имени глобальной переменной, |
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Documented the js_preload_object directive.
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|
464 через которую объект доступен в коде njs. |
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Documented the js_preload_object directive.
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|
465 Если <literal>имя</literal> не указано, |
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|
466 то будет использоваться имя файла. |
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Documented the js_preload_object directive.
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|
467 <example> |
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|
468 js_preload_object map.json; |
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|
469 </example> |
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|
470 В примере <literal>map</literal> используется в качестве имени |
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Documented the js_preload_object directive.
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|
471 во время доступа к предварительно загруженному объекту. |
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|
472 </para> |
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Documented the js_preload_object directive.
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|
473 |
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Documented the js_preload_object directive.
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|
474 <para> |
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|
475 Директив <literal>js_preload_object</literal> может быть несколько. |
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|
476 </para> |
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Documented the js_preload_object directive.
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changeset
|
477 |
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Documented the js_preload_object directive.
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|
478 </directive> |
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Documented the js_preload_object directive.
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|
479 |
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Documented the js_preload_object directive.
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parents:
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diff
changeset
|
480 |
1840
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Documented http and stream nginScript modules.
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parents:
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changeset
|
481 <directive name="js_preread"> |
2530
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Documented the js_import directive and corresponding changes.
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|
482 <syntax><value>функция</value> | <value>модуль.функция</value></syntax> |
1840
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parents:
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changeset
|
483 <default/> |
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Documented http and stream nginScript modules.
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diff
changeset
|
484 <context>stream</context> |
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
485 <context>server</context> |
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
486 |
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
487 <para> |
2128
59a3cc84f507
Renamed nginScript to njs
Yaroslav Zhuravlev <yar@nginx.com>
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2026
diff
changeset
|
488 Задаёт функцию njs, которая будет вызываться в |
1843
3492eb9b8138
Translated http and stream js modules into Russian.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
1840
diff
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|
489 <link doc="stream_processing.xml" id="preread_phase">preread</link>-фазе. |
2530
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Documented the js_import directive and corresponding changes.
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|
490 Начиная с <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link> |
407c5bd5bffc
Documented the js_import directive and corresponding changes.
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|
491 можно ссылаться на функцию модуля. |
1840
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Documented http and stream nginScript modules.
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parents:
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|
492 </para> |
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
493 |
2878
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|
494 <para> |
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|
495 Функция вызывается однократно при первом достижении сессией |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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|
496 <link doc="stream_processing.xml" id="preread_phase">preread</link>-фазы. |
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Improved descriptions of js_access, js_filter, js_preread.
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|
497 Функция вызывается со следующими аргументами: |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
498 |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
499 <list type="tag"> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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|
500 <tag-name><literal>s</literal></tag-name> |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
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|
501 <tag-desc> |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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|
502 объект <link doc="../njs/reference.xml" id="stream">stream-сессии</link> |
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Improved descriptions of js_access, js_filter, js_preread.
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|
503 </tag-desc> |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
504 |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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changeset
|
505 </list> |
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Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
506 </para> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
507 |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
508 <para> |
fd8ec06ceafa
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parents:
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diff
changeset
|
509 В этой фазе может происходить инициализация, |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
510 также при помощи метода |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
511 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
512 может регистрироваться вызов |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
513 для каждого входящего блока данных пока не будет вызван один из методов: |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
514 <link doc="../njs/reference.xml" id="s_done"><literal>s.done()</literal></link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
515 <link doc="../njs/reference.xml" id="s_decline"><literal>s.decline()</literal></link>, |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
516 <link doc="../njs/reference.xml" id="s_allow"><literal>s.allow()</literal></link>. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
517 При вызове любого из этих методов обработка сессии |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
518 переходит на <link doc="stream_processing.xml">следующую фазу</link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
519 и все текущие вызовы |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
520 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
521 сбрасываются. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
522 </para> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
523 |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
524 <para> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
525 <note> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
526 Так как обработчик <literal>js_preread</literal> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
527 должен сразу возвращать результат, |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
528 то поддерживаются только синхронные операции. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
529 Таким образом, асинхронные операции, например |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
530 <link doc="../njs/reference.xml" id="ngx_fetch"><literal>ngx.fetch()</literal></link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
531 или |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
532 <link doc="../njs/reference.xml" id="settimeout"><literal>setTimeout()</literal></link>, |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
533 не поддерживаются. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
534 Тем не менее асинхронные операции поддерживаются в вызовах |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
535 <link doc="../njs/reference.xml" id="s_on"><literal>s.on()</literal></link> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
536 в |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
537 <link doc="stream_processing.xml" id="preread_phase">preread</link>-фазе. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
538 Подробнее см. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
539 <link url="https://github.com/nginx/njs-examples#authorizing-connections-using-ngx-fetch-as-auth-request-stream-auth-request">пример</link>. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
2845
diff
changeset
|
540 </note> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
541 </para> |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
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diff
changeset
|
542 |
1840
15632fc2d548
Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
543 </directive> |
15632fc2d548
Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
544 |
15632fc2d548
Documented http and stream nginScript modules.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
diff
changeset
|
545 |
2352
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
546 <directive name="js_path"> |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
547 <syntax> |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
548 <value>путь</value></syntax> |
1101e24c6d14
Documented the js_path directive.
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parents:
2332
diff
changeset
|
549 <default/> |
2591
f27cedd43e0f
Corrected syntax of js_path in stream.
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parents:
2534
diff
changeset
|
550 <context>stream</context> |
2882
986e1f930e3b
Documented server, location, if contexts for some js directives.
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parents:
2878
diff
changeset
|
551 <context>server</context> |
2352
1101e24c6d14
Documented the js_path directive.
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parents:
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|
552 <appeared-in>0.3.0</appeared-in> |
1101e24c6d14
Documented the js_path directive.
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parents:
2332
diff
changeset
|
553 |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
554 <para> |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
555 Задаёт дополнительный путь для модулей njs. |
1101e24c6d14
Documented the js_path directive.
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parents:
2332
diff
changeset
|
556 </para> |
1101e24c6d14
Documented the js_path directive.
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parents:
2332
diff
changeset
|
557 |
2882
986e1f930e3b
Documented server, location, if contexts for some js directives.
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parents:
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diff
changeset
|
558 <para> |
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Documented server, location, if contexts for some js directives.
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559 <note> |
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changeset
|
560 Директива может быть указана |
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Documented server, location, if contexts for some js directives.
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561 на уровне <literal>server</literal> |
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Documented server, location, if contexts for some js directives.
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changeset
|
562 начиная с <link doc="../njs/changes.xml" id="njs0.7.7">0.7.7</link>. |
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Documented server, location, if contexts for some js directives.
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|
563 </note> |
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|
564 </para> |
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Documented server, location, if contexts for some js directives.
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parents:
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changeset
|
565 |
2352
1101e24c6d14
Documented the js_path directive.
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parents:
2332
diff
changeset
|
566 </directive> |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
567 |
1101e24c6d14
Documented the js_path directive.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2332
diff
changeset
|
568 |
1840
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
569 <directive name="js_set"> |
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Documented http and stream nginScript modules.
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parents:
diff
changeset
|
570 <syntax> |
2530
407c5bd5bffc
Documented the js_import directive and corresponding changes.
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|
571 <value>$переменная</value> <value>функция</value> | |
407c5bd5bffc
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|
572 <value>модуль.функция</value></syntax> |
1840
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|
573 <default/> |
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changeset
|
574 <context>stream</context> |
2882
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|
575 <context>server</context> |
1840
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diff
changeset
|
576 |
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577 <para> |
2686
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578 Задаёт <literal>функцию</literal> njs |
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changeset
|
579 для указанной <literal>переменной</literal>. |
2530
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diff
changeset
|
580 Начиная с <link doc="../njs/changes.xml" id="njs0.4.0">0.4.0</link> |
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parents:
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diff
changeset
|
581 можно ссылаться на функцию модуля. |
1840
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changeset
|
582 </para> |
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diff
changeset
|
583 |
2686
45214e5316cd
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diff
changeset
|
584 <para> |
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Improved description of js_set.
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diff
changeset
|
585 Функция вызывается в момент |
45214e5316cd
Improved description of js_set.
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parents:
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|
586 первого обращения к переменной для данного запроса. |
45214e5316cd
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diff
changeset
|
587 Точный момент вызова функции зависит от |
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diff
changeset
|
588 <link doc="stream_processing.xml">фазы</link>, |
45214e5316cd
Improved description of js_set.
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|
589 в которой происходит обращение к переменной. |
45214e5316cd
Improved description of js_set.
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parents:
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diff
changeset
|
590 Это можно использовать для реализации дополнительной логики, |
45214e5316cd
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parents:
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diff
changeset
|
591 не относящейся к вычислению переменной. |
45214e5316cd
Improved description of js_set.
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parents:
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diff
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592 Например, если переменная указана |
45214e5316cd
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parents:
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diff
changeset
|
593 в директиве <link doc="ngx_stream_log_module.xml" id="log_format"/>, |
45214e5316cd
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diff
changeset
|
594 то её обработчик не будет выполняться до фазы записи в лог. |
45214e5316cd
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diff
changeset
|
595 Этот обработчик также может использоваться для выполнения процедур |
45214e5316cd
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diff
changeset
|
596 непосредственно перед освобождением запроса. |
45214e5316cd
Improved description of js_set.
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diff
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|
597 </para> |
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Improved description of js_set.
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parents:
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diff
changeset
|
598 |
2747
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Added note to js_set about asyncronous calls.
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diff
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|
599 <para> |
42fb92e582db
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changeset
|
600 <note> |
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diff
changeset
|
601 Так как обработчик <literal>js_set</literal> |
42fb92e582db
Added note to js_set about asyncronous calls.
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parents:
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diff
changeset
|
602 должен сразу возвращать результат, |
2878
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
Yaroslav Zhuravlev <yar@nginx.com>
parents:
2845
diff
changeset
|
603 то поддерживаются только синхронные операции. |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
changeset
|
604 Таким образом, асинхронные операции, например |
fd8ec06ceafa
Improved descriptions of js_access, js_filter, js_preread.
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parents:
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diff
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|
605 <link doc="../njs/reference.xml" id="ngx_fetch"><literal>ngx.fetch()</literal></link> |
2747
42fb92e582db
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parents:
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diff
changeset
|
606 или |
2878
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parents:
2845
diff
changeset
|
607 <link doc="../njs/reference.xml" id="settimeout"><literal>setTimeout()</literal></link>, |
2747
42fb92e582db
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parents:
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|
608 не поддерживаются. |
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changeset
|
609 </note> |
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|
610 </para> |
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|
611 |
2882
986e1f930e3b
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|
612 <para> |
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|
613 <note> |
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|
614 Директива может быть указана |
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|
615 на уровне <literal>server</literal> |
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|
616 начиная с <link doc="../njs/changes.xml" id="njs0.7.7">0.7.7</link>. |
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|
617 </note> |
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|
618 </para> |
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|
619 |
1840
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|
620 </directive> |
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|
621 |
2693
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Documented the js_var directive.
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changeset
|
622 |
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Documented the js_var directive.
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|
623 <directive name="js_var"> |
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|
624 <syntax><value>$переменная</value> [<value>значение</value>]</syntax> |
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|
625 <default/> |
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Documented the js_var directive.
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|
626 <context>stream</context> |
2882
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|
627 <context>server</context> |
2693
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|
628 <appeared-in>0.5.3</appeared-in> |
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Documented the js_var directive.
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changeset
|
629 |
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Documented the js_var directive.
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diff
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|
630 <para> |
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Documented the js_var directive.
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|
631 Объявляет |
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|
632 <link doc="../njs/reference.xml" id="r_variables">перезаписываемую</link> |
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|
633 переменную. |
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|
634 В качестве значения можно использовать текст, переменные и их комбинации. |
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|
635 </para> |
3cbd6e440581
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diff
changeset
|
636 |
2882
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|
637 <para> |
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|
638 <note> |
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diff
changeset
|
639 Директива может быть указана |
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parents:
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|
640 на уровне <literal>server</literal> |
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parents:
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|
641 начиная с <link doc="../njs/changes.xml" id="njs0.7.7">0.7.7</link>. |
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|
642 </note> |
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|
643 </para> |
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diff
changeset
|
644 |
2693
3cbd6e440581
Documented the js_var directive.
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|
645 </directive> |
3cbd6e440581
Documented the js_var directive.
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parents:
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|
646 |
1840
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diff
changeset
|
647 </section> |
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changeset
|
648 |
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changeset
|
649 |
1843
3492eb9b8138
Translated http and stream js modules into Russian.
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1840
diff
changeset
|
650 <section id="properties" name="Свойства объекта сессии"> |
1840
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parents:
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|
651 |
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Documented http and stream nginScript modules.
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changeset
|
652 <para> |
2175
cd4889fdcfa4
Moved njs HTTP and Stream API to a separate page.
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parents:
2135
diff
changeset
|
653 Каждый stream-обработчик njs получает один аргумент, |
2288
786e96c52c7a
Corrected links and example in Russian http and stream js modules.
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parents:
2246
diff
changeset
|
654 <link doc="../njs/reference.xml" id="stream">объект</link> stream-сессии. |
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|
655 </para> |
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Documented http and stream nginScript modules.
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changeset
|
656 |
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diff
changeset
|
657 </section> |
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changeset
|
658 |
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changeset
|
659 </module> |