198 lines
9.2 KiB
HTML
198 lines
9.2 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>Module HowTo - Configuration options</title>
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<link rel="stylesheet" type="text/css" href="style/layout.css">
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</head>
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<body>
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<h1>Module HowTo - Configuration options<br>
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</h1>
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<div style="text-align: left;"><br>
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There might be situations where you want to give the user the
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possibility to make general settings which are not useful to place on
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the account detail pages or profile editor.<br>
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Therefore LAM allows the modules to define their own configuration
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options. E.g. the <span style="font-style: italic;">posixAccount</span>
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module uses this to define the ranges for the UIDs.<br>
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LAM will display your configuration options only if the user also
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selected your module.<br>
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</div>
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<div style="text-align: left;"><br>
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<h2>1. Defining configuration options<br>
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</h2>
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First you have to define what options you want to offer the user. LAM
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will display all options in one fieldset for each module. Please notice
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that there will be no separation on account types if you module is
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suitable for different account types.<br>
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<br>
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The configuration options are specified with <span
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style="font-weight: bold;">get_configOptions()</span>
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or <span style="font-weight: bold;">meta['config_options']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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style="font-weight: bold; text-decoration: underline;">
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<br>
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The <span style="font-style: italic;">posixGroup</span> module offers
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three configuration options. The min/maximum values for GIDs and the
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password hash type.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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border="0" cellpadding="2" cellspacing="2">
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<tbody>
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<tr>
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<td style="vertical-align: top;"> /**<br>
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* Returns meta data that is interpreted by parent
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class<br>
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*<br>
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* @return array array with meta data<br>
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*/<br>
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<span style="font-weight: bold;"> function</span>
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get_metaData() {<br>
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$return = array();<br>
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// configuration options<br>
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$return[<span
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style="color: rgb(255, 0, 0);">'config_options'</span>][<span
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style="color: rgb(255, 0, 0);">'group'</span>] = array(<br>
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array(<br>
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0 => array('kind' => 'text', 'text' => '<b>' .
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_('Minimum GID number') . " *: </b>"),<br>
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1 => array('kind' => 'input', 'name' =>
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'posixGroup_minGID', 'type' => 'text', 'size' => '10',
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'maxlength' => '255'),<br>
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2 => array('kind' => 'text', 'value' => '&nbsp;'),<br>
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3 => array('kind' => 'text', 'text' => '<b>' .
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_('Maximum GID number') . " *: </b>"),<br>
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4 => array('kind' => 'input', 'name' =>
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'posixGroup_maxGID', 'type' => 'text', 'size' => '10',
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'maxlength' => '255'),<br>
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5 => array('kind' => 'help', 'value' => 'minMaxGID')),<br>
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array(<br>
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0 => array('kind' => 'text', 'text' => '<b>' .
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_("Password hash type") . ': &nbsp;</b>'),<br>
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1 => array('kind' => 'select', 'name' =>
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'posixGroup_pwdHash', 'size' => '1',<br>
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'options' => array("CRYPT", "SHA", "SSHA", "MD5", "SMD5",
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"PLAIN"), 'options_selected' => array('SSHA')),<br>
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2 => array('kind' => 'text', 'value' => '&nbsp;'),<br>
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3 => array('kind' => 'text', 'value' => '&nbsp;'),<br>
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4 => array('kind' => 'text', 'value' => '&nbsp;'),<br>
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5 => array('kind' => 'help', 'value' => 'pwdHash'))<br>
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);<br>
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[...]<br>
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</td>
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</tr>
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</tbody>
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</table>
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<br>
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The min/maximum GID numbers are defined with simple text boxes. The
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password hash is selected with a drop down box and SSHA as default
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value.<br>
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You should make sure that the column count (here: 6) is the same for
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each row. Otherwise the configuration page might be badly rendered by
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the browser.<br>
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<br>
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<h2>2. Checking user input</h2>
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Probably you also want to check if the input data is syntactically
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correct.<br>
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The <span style="font-style: italic;">baseModule</span> already
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provides different checks which can be activated with <span
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style="font-style: italic;">meta data</span>. However you can also do
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the checking in the module.<br>
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Implementing the function <span style="font-weight: bold;">check_configOptions()</span>
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in your module will allow you to do the checks yourself. Basic checks
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can be defined with <span style="font-weight: bold;">meta['config_checks']</span>.<br>
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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style="font-weight: bold; text-decoration: underline;">
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<br>
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The <span style="font-style: italic;">posixGroup</span> module only
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needs to check if the GID numbers are correct. The password hash type
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needs not to be checked as it is a selection.<br>
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<br>
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<table style="width: 100%; text-align: left;" class="mod-code"
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border="0" cellpadding="2" cellspacing="2">
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<tbody>
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<tr>
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<td style="vertical-align: top;"> /**<br>
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* Returns meta data that is interpreted by parent
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class<br>
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*<br>
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* @return array array with meta data<br>
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*/<br>
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<span style="font-weight: bold;"> function</span>
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get_metaData() {<br>
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$return = array();<br>
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// configuration checks<br>
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$return[<span
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style="color: rgb(255, 0, 0);">'config_checks'</span>][<span
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style="color: rgb(255, 0, 0);">'group'</span>]['posixGroup_minGID'] =
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array (<br>
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'type' =>
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'ext_preg',<br>
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'regex' =>
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'digit',<br>
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'required'
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=> true,<br>
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'required_message' => $this->messages['gidNumber'][5],<br>
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'error_message' => $this->messages['gidNumber'][5]);<br>
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$return[<span
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style="color: rgb(255, 0, 0);">'config_checks'</span>][<span
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style="color: rgb(255, 0, 0);">'group'</span>]['posixGroup_maxGID'] =
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array (<br>
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'type' =>
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'ext_preg',<br>
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'regex' =>
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'digit',<br>
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'required'
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=> true,<br>
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'required_message' => $this->messages['gidNumber'][6],<br>
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'error_message' => $this->messages['gidNumber'][6]);<br>
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$return[<span
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style="color: rgb(255, 0, 0);">'config_checks'</span>][<span
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style="color: rgb(255, 0, 0);">'group'</span>]['cmpGID'] = array (<br>
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'type' =>
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'int_greater',<br>
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'cmp_name1'
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=> 'posixGroup_maxGID',<br>
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'cmp_name2'
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=> 'posixGroup_minGID',<br>
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'error_message' => $this->messages['gidNumber'][7]);<br>
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[...]<br>
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</td>
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</tr>
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</tbody>
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</table>
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<br>
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The type <span style="font-weight: bold;">"ext_preg"</span> means that
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the <span style="font-style: italic;">baseModule</span> will use the <span
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style="font-style: italic;">get_preg()</span> function in <span
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style="font-style: italic;">lib/account.inc</span> for the syntax
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check. This function already contains regular expressions for the most
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common cases.<br>
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To check if the minimum GID is smaller than the maximum GID we define a
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check for the nonexistant option "cmpGID" and define it as optional.
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This will do the comparison check.<br>
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<br>
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<br>
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</div>
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</body>
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</html>
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