Mercurial > hg > nginx-site
annotate xml/en/docs/http/ngx_http_ssi_module.xml @ 718:8afb4cbc63bb
Removed vestiges of separate "introduction" and "howto".
author | Ruslan Ermilov <ru@nginx.com> |
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date | Thu, 11 Oct 2012 08:18:46 +0000 |
parents | 764fbac1b8b4 |
children | 64085bf227f6 |
rev | line source |
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1 <?xml version="1.0"?> |
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2 |
580
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3 <!-- |
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4 Copyright (C) Igor Sysoev |
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5 Copyright (C) Nginx, Inc. |
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6 --> |
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7 |
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8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd"> |
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9 |
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10 <module name="Module ngx_http_ssi_module" |
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11 link="/en/docs/http/ngx_http_ssi_module.html" |
589 | 12 lang="en" |
13 rev="1"> | |
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14 |
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15 <section id="summary"> |
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16 |
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17 <para> |
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18 The <literal>ngx_http_ssi_module</literal> module is a filter |
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19 that processes SSI (Server Side Includes) commands in responses |
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20 passing through it. |
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21 Currently, the list of supported SSI commands is incomplete. |
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22 </para> |
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23 |
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24 </section> |
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25 |
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26 |
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27 <section id="example" name="Example Configuration"> |
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28 |
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29 <para> |
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30 <example> |
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31 location / { |
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32 ssi on; |
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33 ... |
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34 } |
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35 </example> |
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36 </para> |
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37 |
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38 </section> |
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39 |
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40 |
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41 <section id="directives" name="Directives"> |
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42 |
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43 <directive name="ssi"> |
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44 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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45 <default>off</default> |
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46 <context>http</context> |
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47 <context>server</context> |
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48 <context>location</context> |
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49 <context>if in location</context> |
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50 |
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51 <para> |
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52 Enables or disables processing of SSI commands in responses. |
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53 </para> |
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54 |
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55 </directive> |
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56 |
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57 |
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58 <directive name="ssi_silent_errors"> |
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59 <syntax><literal>on</literal> | <literal>off</literal></syntax> |
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60 <default>off</default> |
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61 <context>http</context> |
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62 <context>server</context> |
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63 <context>location</context> |
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64 |
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65 <para> |
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66 Allows to suppress output of the string |
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67 “<literal>[an error occurred while processing the directive]</literal>” |
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68 if an error occurred during SSI processing. |
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69 </para> |
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70 |
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71 </directive> |
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72 |
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73 |
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74 <directive name="ssi_types"> |
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75 <syntax><value>mime-type</value> ...</syntax> |
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76 <default>text/html</default> |
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77 <context>http</context> |
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78 <context>server</context> |
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79 <context>location</context> |
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80 |
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81 <para> |
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82 Enables processing of SSI commands in responses with the specified MIME types |
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83 in addition to “<literal>text/html</literal>”. |
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84 The special value “<literal>*</literal>” matches any MIME type (0.8.29). |
399
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85 </para> |
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86 |
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87 </directive> |
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88 |
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89 </section> |
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90 |
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91 |
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92 <section id="commands" name="SSI Commands"> |
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93 |
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94 <para> |
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95 SSI commands have the following generic format: |
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96 <example> |
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97 <!--# command parameter1=value1 parameter2=value2 ... --> |
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98 </example> |
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99 </para> |
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100 |
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101 <para> |
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102 The following commands are supported: |
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103 <list type="tag"> |
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104 |
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105 <tag-name><literal>block</literal></tag-name> |
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106 <tag-desc> |
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107 Defines a block that can be used as a stub |
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108 in the <literal>include</literal> command. |
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109 The block can contain other SSI commands. |
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110 The command has the following parameter: |
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111 |
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112 <list type="tag"> |
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113 <tag-name><literal>name</literal></tag-name> |
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114 <tag-desc> |
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115 block name. |
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116 </tag-desc> |
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117 </list> |
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118 |
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119 Example: |
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120 <example> |
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121 <!--# block name="one" --> |
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122 stub |
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123 <!--# endblock --> |
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124 </example> |
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125 |
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126 </tag-desc> |
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127 |
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128 |
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129 <tag-name><literal>config</literal></tag-name> |
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130 <tag-desc> |
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131 Sets some parameters used during SSI processing, namely: |
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132 |
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133 <list type="tag"> |
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134 <tag-name><literal>errmsg</literal></tag-name> |
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135 <tag-desc> |
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136 a string that is output if an error occurs during SSI processing. |
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137 By default, the following string is output: |
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138 <example> |
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139 [an error occurred while processing the directive] |
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140 </example> |
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141 </tag-desc> |
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142 |
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143 <tag-name><literal>timefmt</literal></tag-name> |
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144 <tag-desc> |
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145 a format string passed to the <c-func>strftime</c-func> function |
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146 used to output date and time. |
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147 By default, the following format is used: |
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148 <example> |
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149 "%A, %d-%b-%Y %H:%M:%S %Z" |
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150 </example> |
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151 The “<literal>%s</literal>” format is suitable to output time in seconds. |
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152 </tag-desc> |
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153 </list> |
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154 |
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155 </tag-desc> |
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156 |
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157 |
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158 <tag-name><literal>echo</literal></tag-name> |
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159 <tag-desc> |
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160 Outputs the value of a variable. |
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161 The command has the following parameters: |
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162 |
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163 <list type="tag"> |
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164 <tag-name><literal>var</literal></tag-name> |
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165 <tag-desc> |
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166 variable name. |
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167 </tag-desc> |
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168 |
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169 <tag-name><literal>encoding</literal></tag-name> |
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170 <tag-desc> |
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171 encoding method. |
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172 Possible values include <literal>none</literal>, <literal>url</literal>, and |
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173 <literal>entity</literal>. |
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174 By default, <literal>entity</literal> is used. |
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175 </tag-desc> |
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176 |
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177 <tag-name><literal>default</literal></tag-name> |
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178 <tag-desc> |
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179 non-standard parameter that sets a string to be output |
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180 if a variable is undefined. |
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181 By default, “<literal>none</literal>” is output. |
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182 The command |
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183 <example> |
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184 <!--# echo var="name" default="<emphasis>no</emphasis>" --> |
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185 </example> |
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186 replaces the following sequence of commands: |
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187 <example> |
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188 <!--# if expr="$name" --><!--# echo var="name" --><!--# |
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189 else --><emphasis>no</emphasis><!--# endif --> |
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190 </example> |
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191 </tag-desc> |
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192 </list> |
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193 |
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194 </tag-desc> |
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195 |
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196 |
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197 <tag-name><literal>if</literal></tag-name> |
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198 <tag-desc> |
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199 Performs a conditional inclusion. |
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200 The following commands are supported: |
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201 <example> |
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202 <!--# if expr="..." --> |
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203 ... |
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204 <!--# elif expr="..." --> |
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205 ... |
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206 <!--# else --> |
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207 ... |
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208 <!--# endif --> |
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209 </example> |
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210 Only one level of nesting is currently supported. |
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211 The command has the following parameter: |
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212 |
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213 <list type="tag"> |
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214 <tag-name><literal>expr</literal></tag-name> |
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215 <tag-desc> |
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216 expression. |
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217 An expression can be: |
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218 |
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219 <list type="bullet"> |
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220 |
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221 <listitem> |
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222 variable existence check: |
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223 <example> |
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224 <!--# if expr="$name" --> |
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225 </example> |
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226 </listitem> |
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227 |
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228 <listitem> |
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229 comparison of a variable with a text: |
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230 <example> |
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231 <!--# if expr="$name = <value>text</value>" --> |
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232 <!--# if expr="$name != <value>text</value>" --> |
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233 </example> |
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234 </listitem> |
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235 |
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236 <listitem> |
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237 comparison of a variable with a regular expression: |
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238 <example> |
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239 <!--# if expr="$name = /<value>text</value>/" --> |
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240 <!--# if expr="$name != /<value>text</value>/" --> |
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241 </example> |
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242 </listitem> |
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243 </list> |
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244 |
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245 If a <value>text</value> contains variables, |
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246 their values are substituted. |
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247 A regular expression can contain positional and named captures |
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248 that can later be used through variables, for example: |
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249 <example> |
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250 <!--# if expr="$name = /(.+)@(?P<domain>.+)/" --> |
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251 <!--# echo var="1" --> |
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252 <!--# echo var="domain" --> |
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253 <!--# endif --> |
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254 </example> |
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255 </tag-desc> |
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256 </list> |
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257 |
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258 </tag-desc> |
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259 |
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260 |
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261 <tag-name><literal>include</literal></tag-name> |
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262 <tag-desc> |
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263 Includes the result of another request into a response. |
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264 The command has the following parameters: |
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265 |
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266 <list type="tag"> |
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267 <tag-name><literal>file</literal></tag-name> |
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268 <tag-desc> |
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269 specifies an included file, for example: |
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270 <example> |
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271 <!--# include file="footer.html" --> |
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272 </example> |
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273 </tag-desc> |
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274 |
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275 <tag-name><literal>virtual</literal></tag-name> |
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276 <tag-desc> |
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277 specifies an included request, for example: |
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278 <example> |
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279 <!--# include virtual="/remote/body.php?argument=value" --> |
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280 </example> |
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281 Several requests specified on one page and processed by proxied or |
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282 FastCGI servers run in parallel. |
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283 If sequential processing is desired, the <literal>wait</literal> |
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284 parameter should be used. |
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285 </tag-desc> |
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286 |
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287 <tag-name><literal>stub</literal></tag-name> |
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288 <tag-desc> |
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289 non-standard parameter that names the block whose |
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290 content will be output if an included request results in an empty |
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291 body or if an error occurs during request processing, for example: |
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292 <example> |
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293 <!--# block name="one" -->&nbsp;<!--# endblock --> |
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294 <!--# include virtual="/remote/body.php?argument=value" stub="one" --> |
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295 </example> |
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296 The replacement block content is processed in the included request context. |
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297 </tag-desc> |
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298 |
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299 <tag-name><literal>wait</literal></tag-name> |
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300 <tag-desc> |
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301 non-standard parameter that instructs to wait for a request to fully |
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302 complete before continuing with SSI processing, for example: |
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303 <example> |
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304 <!--# include virtual="/remote/body.php?argument=value" wait="yes" --> |
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305 </example> |
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306 </tag-desc> |
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307 |
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308 <tag-name><literal>set</literal></tag-name> |
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309 <tag-desc> |
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310 non-standard parameter that instructs to write a successful result |
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311 of request processing to the specified variable, |
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312 for example: |
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313 <example> |
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314 <!--# include virtual="/remote/body.php?argument=value" set="one" --> |
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315 </example> |
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316 It should be noted that only the results of responses obtained using the |
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317 <link doc="ngx_http_proxy_module.xml">ngx_http_proxy_module</link> and |
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318 <link doc="ngx_http_memcached_module.xml">ngx_http_memcached_module</link> |
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319 modules can be written into variables. |
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320 </tag-desc> |
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321 |
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322 </list> |
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323 |
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324 </tag-desc> |
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325 |
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326 |
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327 <tag-name><literal>set</literal></tag-name> |
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328 <tag-desc> |
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329 Sets a value of a variable. |
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330 The command has the following parameters: |
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331 |
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332 <list type="tag"> |
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333 <tag-name><literal>var</literal></tag-name> |
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334 <tag-desc> |
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335 variable name. |
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336 </tag-desc> |
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337 |
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338 <tag-name><literal>value</literal></tag-name> |
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339 <tag-desc> |
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340 variable value. |
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341 If an assigned value contains variables, |
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342 their values are substituted. |
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343 </tag-desc> |
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344 </list> |
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345 |
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346 </tag-desc> |
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347 |
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348 </list> |
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349 </para> |
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350 |
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351 </section> |
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352 |
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353 |
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354 <section id="variables" name="Embedded Variables"> |
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355 |
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356 <para> |
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357 The <literal>ngx_http_ssi_module</literal> module supports |
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358 two embedded variables: |
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359 <list type="tag"> |
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360 |
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361 <tag-name><var>$date_local</var></tag-name> |
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362 <tag-desc> |
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363 current time in local time zone. |
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364 The format is set by the <literal>config</literal> command |
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365 with the <literal>timefmt</literal> parameter. |
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366 </tag-desc> |
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367 |
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368 <tag-name><var>$date_gmt</var></tag-name> |
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369 <tag-desc> |
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370 current time in GMT. |
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371 The format is set by the <literal>config</literal> command |
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372 with the <literal>timefmt</literal> parameter. |
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373 </tag-desc> |
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374 |
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375 </list> |
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English translation of ngx_http_ssi_module.
Ruslan Ermilov <ru@nginx.com>
parents:
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376 </para> |
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English translation of ngx_http_ssi_module.
Ruslan Ermilov <ru@nginx.com>
parents:
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377 |
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English translation of ngx_http_ssi_module.
Ruslan Ermilov <ru@nginx.com>
parents:
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378 </section> |
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English translation of ngx_http_ssi_module.
Ruslan Ermilov <ru@nginx.com>
parents:
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379 |
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English translation of ngx_http_ssi_module.
Ruslan Ermilov <ru@nginx.com>
parents:
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380 </module> |