2004-11-01 13:56:54 +00:00
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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 - Account pages</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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<div style="text-align: center;">
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<h1>Module HowTo - Account pages<br>
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</h1>
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<br>
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<br>
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<div style="text-align: left;"><br>
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2004-11-01 16:53:58 +00:00
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<h2>1. Loading the LDAP attributes<br>
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</h2>
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Every time the user selects an existing account to modify LAM will load
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the complete LDAP entry of it. Your module then should select the
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attributes which are useful for it.<br>
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There are two variables in <span style="font-style: italic;">baseModule</span>
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which should be used to store the attributes. The <span
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style="font-weight: bold;">$attributes</span> variable stores the
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current attributes including changes the user made. The <span
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style="font-weight: bold;">$orig</span> variable stores the attributes
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as they were originally when the account was loaded. This allows you to
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see what changes were made.<br>
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<br>
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The <span style="font-weight: bold;">load_attributes()</span> function
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in your module gets the complete attribute list from LDAP.<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;">ieee802Device</span> uses an
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object class and the <span style="font-style: italic;">'macAddress'</span>
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attribute. Therefore we will save this two values.<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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* This function loads all needed attributes into the
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object.<br>
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*<br>
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* @param array $attr an array as it is retured from
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ldap_get_attributes<br>
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*/<br>
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<span style="font-weight: bold;">function</span> <span
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style="color: rgb(255, 0, 0);">load_attributes</span>($attr) {<br>
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$this->attributes['objectClass'] = array();<br>
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$this->attributes['macAddress'] = array();<br>
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$this->orig['objectClass'] =
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array();<br>
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$this->orig['macAddress'] =
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array();<br>
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if (isset($attr['objectClass'])) {<br>
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unset($attr['objectClass']['count']);<br>
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$this->attributes['objectClass'] = $attr['objectClass'];<br>
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$this->orig['objectClass'] = $attr['objectClass'];<br>
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}<br>
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if (isset($attr['macAddress'])) {<br>
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unset($attr['macAddress']['count']);<br>
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$this->attributes['macAddress'] = $attr['macAddress'];<br>
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$this->orig['macAddress'] = $attr['macAddress'];<br>
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}<br>
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return 0;<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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<br>
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<h2>2. Defining pages<br>
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2004-11-01 13:56:54 +00:00
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</h2>
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You can define multiple subpages for your account page. Usually one
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page is enough but you may display certain attribute settings on an
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extra page (e.g. Unix group memberships are on a second page).<br>
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<br>
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The page names are set by <span style="font-weight: bold;">pages() </span>which
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returns an array of names.<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
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<span style="font-style: italic;">ieee802Device</span>
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module needs only one page which is called <span
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style="font-style: italic;">'attributes'</span>.<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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* This function returns a list of all account pages
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in this module.<br>
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*/<br>
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<span style="font-weight: bold;">function</span> <span
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style="color: rgb(255, 0, 0);">pages</span>() {<br>
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return array('attributes');<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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<br>
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2004-11-01 16:53:58 +00:00
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<h2>3. Page display</h2>
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2004-11-01 13:56:54 +00:00
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Now that you have defined your subpages you will need one function for
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each page to display it. The function must return <span
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style="font-style: italic;">meta HTML code</span> as defined in the <span
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style="font-style: italic;">modules specification</span>.<br>
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This function is called <span style="font-weight: bold;">display_html_<page
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name>()</span> where <span style="font-style: italic;"><page
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name></span> is the name of your subpage.<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
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<span style="font-style: italic;">ieee802Device</span>
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module has only one subpage called <span style="font-style: italic;">'attributes'</span>.<br>
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<br>
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The first half of the code displays the existing MAC addresses and the
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second an input field for new values.<br>
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The variable <span style="font-style: italic;">$this->attributes</span>
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2004-11-01 16:53:58 +00:00
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contains the LDAP attributes which are useful for this module.<br>
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2004-11-01 13:56:54 +00:00
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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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* This function will create the meta HTML code to
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show a page with all attributes.<br>
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*<br>
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* @param array $post HTTP-POST values<br>
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*/<br>
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<span style="font-weight: bold;">function</span> <span
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style="color: rgb(255, 0, 0);">display_html_attributes</span>($post) {<br>
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$return = array();<br>
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// list current MACs<br>
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for ($i = 0; $i <
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sizeof($this->attributes['macAddress']); $i++) {<br>
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$return[] =
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array(<br>
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0 => array('kind' => 'text', 'text' =>
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_('MAC address')),<br>
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1 => array('kind' => 'input', 'name' =>
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'macAddress' . $i, 'type' => 'text', 'size' => '17', 'maxlength'
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=> '17', 'value' => $this->attributes['macAddress'][$i]),<br>
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2 => array('kind' => 'input', 'type' =>
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'submit', 'name' => 'delMAC' . $i, 'value' => _("Remove")),<br>
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3 => array('kind' => 'help', 'value' =>
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'mac'));<br>
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}<br>
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// input box for new MAC<br>
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$return[] = array(<br>
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0 =>
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array('kind' => 'text', 'text' => _('New MAC address')),<br>
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1 =>
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array('kind' => 'input', 'name' => 'macAddress', 'type' =>
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'text', 'size' => '17', 'maxlength' => '17', 'value' => ''),<br>
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2 =>
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array('kind' => 'input', 'type' => 'submit', 'name' =>
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'addMAC', 'value' => _("Add")),<br>
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3 =>
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array('kind' => 'help', 'value' => 'mac'),<br>
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4 =>
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array('kind' => 'input', 'type' => 'hidden', 'value' =>
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sizeof($this->attributes['macAddress']), 'name' => 'mac_number'));<br>
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return $return;<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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<br>
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2004-11-01 16:53:58 +00:00
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<h2>4. Processing input data<br>
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2004-11-01 13:56:54 +00:00
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</h2>
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Every time the user clicks on a submit button while your page is
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displayed LAM will call a function in your module.<br>
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This function is called <span style="font-weight: bold;">process_<page
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name>()</span> where <span style="font-style: italic;"><page
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name></span> is the name of your subpage.<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
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<span style="font-style: italic;">ieee802Device</span>
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module has only one subpage called <span style="font-style: italic;">'attributes'</span>
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and therefore only <span style="font-style: italic;">process_attributes()</span>.<br>
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<br>
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The function checks the input fields and fills the LDAP attributes. If
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all is ok it will enable the user to move to another module page.<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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* Write variables into object and do some regex
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checks<br>
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*<br>
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* @param array $post HTTP-POST values<br>
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*/<br>
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<span style="font-weight: bold;">function</span> <span
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2005-03-10 18:35:04 +00:00
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style="color: rgb(255, 0, 0);">process_attributes</span>($post) {<br>
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$this->triggered_messages =
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array();<br>
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$this->attributes['macAddress'] = array();<br>
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// check old MACs<br>
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if (isset($post['mac_number'])) {<br>
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for ($i = 0;
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$i < $post['mac_number']; $i++) {<br>
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if (isset($post['delMAC' . $i])) continue;<br>
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if (isset($post['macAddress' . $i]) &&
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($post['macAddress' . $i] != "")) {<br>
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// check if address has correct
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format<br>
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if (!get_preg($post['macAddress'
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. $i], 'macAddress')) {<br>
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$message =
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$this->messages['mac'][0];<br>
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$message[] =
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$post['macAddress' . $i];<br>
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$this->triggered_messages[] = array($message);<br>
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}<br>
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$this->attributes['macAddress'][] = $post['macAddress' . $i];<br>
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}<br>
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}<br>
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}<br>
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// check new MAC<br>
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if (isset($post['macAddress'])
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&& ($post['macAddress'] != "")) {<br>
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// check if
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address has correct format<br>
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if
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(get_preg($post['macAddress'], 'macAddress')) {<br>
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$this->attributes['macAddress'][] =
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$post['macAddress'];<br>
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}<br>
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else {<br>
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$message =
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$this->messages['mac'][0];<br>
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$message[] = $post['macAddress'];<br>
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$this->triggered_messages[] =
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array($message);<br>
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}<br>
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}<br>
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$this->attributes['macAddress'] =
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array_unique($this->attributes['macAddress']);<br>
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if
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(sizeof($this->triggered_messages) > 0) {<br>
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$this->inputCorrect = false;<br>
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return
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$this->triggered_messages;<br>
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}<br>
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else {<br>
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$this->inputCorrect = true;<br>
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return 0;<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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<br>
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2004-11-01 16:53:58 +00:00
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<h2>5. Defining that your module is ready for LDAP add/modify</h2>
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2004-11-01 13:56:54 +00:00
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Before a new account can be created or modified all modules are asked
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if they are ready.<br>
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There are two functions which control the module status. The <span
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style="font-weight: bold;">module_ready()</span> function has to
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return <span style="font-style: italic;">true</span> if the user may
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move to another module page. If it is <span style="font-style: italic;">false</span>
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the user will be redirected to your module page. The second function is
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<span style="font-weight: bold;">module_complete()</span>. The user
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cannot do the LDAP operation if one or modules return <span
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style="font-style: italic;">false</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
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<span style="font-style: italic;">ieee802Device</span>
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module uses a global variable to store the status: <span
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style="font-style: italic;">$this->inputCorrect</span>. It is set
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in <span style="font-style: italic;">process_attributes()</span>. The
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variable can be preset to <span style="font-style: italic;">true</span>
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because the MAC address is optional.<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;"> /** used for
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account pages, true if input data is correct */<br>
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2004-11-01 16:53:58 +00:00
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<span style="font-weight: bold;">var</span>
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$inputCorrect = true;<br>
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2004-11-01 13:56:54 +00:00
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<br>
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/**<br>
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* This function returns true if all needed settings
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are done.<br>
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*/<br>
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2004-11-01 16:53:58 +00:00
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<span style="font-weight: bold;">function</span> <span
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style="color: rgb(255, 0, 0);">module_complete</span>() {<br>
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2004-11-01 13:56:54 +00:00
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return $this->inputCorrect;<br>
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}<br>
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<br>
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/**<br>
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* Returns true if all settings on module page are
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correct.<br>
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*/<br>
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2004-11-01 16:53:58 +00:00
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<span style="font-weight: bold;">function</span> <span
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style="color: rgb(255, 0, 0);">module_ready</span>() {<br>
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2004-11-01 13:56:54 +00:00
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return $this->inputCorrect;<br>
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}<br>
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</td>
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</tr>
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</tbody>
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</table>
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<br>
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<br>
|
2004-11-01 16:53:58 +00:00
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<h2>6. Saving the LDAP attributes<br>
|
2004-11-01 13:56:54 +00:00
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</h2>
|
2004-11-01 16:53:58 +00:00
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When all modules report that they are ready for LDAP add/modify and the
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user clicks on the add/modify button your module will be asked what
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changes have to be made.<br>
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This is done in the function <span style="font-weight: bold;">save_attributes()</span>
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which must be implemented by your module.<br>
|
2004-11-01 13:56:54 +00:00
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<br>
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<span style="font-weight: bold; text-decoration: underline;">Example:</span><br
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style="font-weight: bold; text-decoration: underline;">
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<br>
|
2004-11-01 16:53:58 +00:00
|
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|
The <span style="font-style: italic;">ieee802Device</span>
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module saves the attribute states in <span style="font-style: italic;">$attributes</span>
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and <span style="font-style: italic;">$orig</span> and there are no
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other DNs which may be modified. Therefore we can use the <span
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style="font-weight: bold;">save_module_attributes()</span> function in
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<span style="font-weight: bold;">accountContainer</span>. You can
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|
always access the current <span style="font-weight: bold;">accountContainer</span>
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|
with <span style="font-weight: bold;">$_SESSION[$this->base]</span>.<br>
|
2004-11-01 13:56:54 +00:00
|
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|
<br>
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|
<table style="width: 100%; text-align: left;" class="mod-code"
|
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|
border="0" cellpadding="2" cellspacing="2">
|
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|
<tbody>
|
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|
<tr>
|
2004-11-01 16:53:58 +00:00
|
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|
<td style="vertical-align: top;"> /**<br>
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|
* Returns a list of modifications which have to be
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|
made to the LDAP account.<br>
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|
*<br>
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|
* @return array list of modifications<br>
|
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|
* <br>This function returns an array with 3
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|
|
entries:<br>
|
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|
|
* <br>array( DN1 ('add' => array($attr),
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|
|
'remove' => array($attr), 'modify' => array($attr)), DN2 .... )<br>
|
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|
* <br>DN is the DN to change. It may be
|
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|
possible to change several DNs (e.g. create a new user and add him to
|
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|
|
some groups via attribute memberUid)<br>
|
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|
* <br>"add" are attributes which have to be
|
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|
added to LDAP entry<br>
|
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|
|
* <br>"remove" are attributes which have to be
|
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|
|
removed from LDAP entry<br>
|
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|
|
|
* <br>"modify" are attributes which have to
|
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|
|
been modified in LDAP entry<br>
|
|
|
|
|
*/<br>
|
|
|
|
|
<span style="font-weight: bold;">function</span> <span
|
|
|
|
|
style="color: rgb(255, 0, 0);">save_attributes</span>() {<br>
|
|
|
|
|
return
|
|
|
|
|
$_SESSION[$this->base]->save_module_attributes($this->attributes,
|
|
|
|
|
$this->orig);<br>
|
|
|
|
|
}<br>
|
2004-11-01 13:56:54 +00:00
|
|
|
</td>
|
|
|
|
|
</tr>
|
|
|
|
|
</tbody>
|
|
|
|
|
</table>
|
|
|
|
|
<br>
|
|
|
|
|
<br>
|
|
|
|
|
<span style="font-weight: bold;"></span>
|
|
|
|
|
<h2><span style="font-weight: bold;"></span></h2>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
