friendica-addons/cal/cal.php

<?php
/********************************************************************
 * Name: Calendar Export
 * Description: This addon exports the public events of your users as calendar files
 * Version: 0.1
 * Author: Tobias Diekershoff <https://f.diekershoff.de/profile/tobias>
 * License: MIT
 * ******************************************************************/


function cal_install()
{
    register_hook('plugin_settings', 'addon/cal/cal.php', 'cal_addon_settings');
    register_hook('plugin_settings_post', 'addon/cal/cal.php', 'cal_addon_settings_post');
}
function cal_uninstall()
{
    unregister_hook('plugin_settings', 'addon/cal/cal.php', 'cal_addon_settings');
    unregister_hook('plugin_settings_post', 'addon/cal/cal.php', 'cal_addon_settings_post');
}
function cal_module()
{
}
/*  pathes
 *  /cal/$user/export/$format
 */
function cal_content()
{
    $a = get_app();
    $o = "";
    if ($a->argc == 1) {
	$o = "<p>".t('Some text to explain what this does.')."</p>";
    } elseif ($a->argc==4) {
	$username = $a->argv[1];
	$do = $a->argv[2];
	$format = $a->argv[3];
	$o = "<p>".$do." calendar for ".$username." as ".$format." file.</p>";
    } else {
	$o = "<p>".t('Wrong number of parameters')."</p>";
    }
    return $o;
}

function cal_addon_settings_post ( &$a, &$b  )
{
    if (! local_user())
	return;

    if (!x($_POST,'cal-submit'))
	return;

    set_pconfig(local_user(),'cal','enable',intval($_POST['cal-enable']));
}
function cal_addon_settings ( &$a, &$s  )
{
    if (! local_user())
	return;

    $enabled = get_pconfig(local_user(), 'cal', 'enable');
    $checked = (($enabled) ? ' checked="checked" ' : '');
    $url = $a->get_baseurl().'/cal/'.$a->user['nickname'].'/export/ical';

    $s .= '<h3>'.t('Export Events').'</h3>';
    $s .= '<p>'.t('If this is enabled, you public events will be available at').' <strong>'.$url.'</strong></p>';
    $s .= '<div id="cal-enable-wrapper">';
    $s .= '<label id="cal-enable-label" for="cal-checkbox">'. t('Enable calendar export') .'</label>';
    $s .= '<input id="cal-checkbox" type="checkbox" name="cal-enable" value="1" ' . $checked . '/>';
    $s .= '</div><div class="clear"></div>';
    $s .= '<div class="settings-submit-wrapper" ><input type="submit" name="cal-submit" class="settings-submit" value="' . t('Submit') . '" /></div>'; 
    $s .= '</div><div class="clear"></div>';

}

?>