mnet: new mnet_hosts block

[moodle.git] / blocks / mnet_hosts / block_mnet_hosts.php

<?PHP //$Id$

class block_mnet_hosts extends block_list {
    function init() {
        $this->title = get_string('mnet_hosts','block_mnet_hosts') ;
        $this->version = 2006112100;
    }

    function has_config() {
        return false;
    }

    function get_content() {
        global $THEME, $CFG, $USER;

        // check for outgoing roaming permission first
        if (!has_capability('moodle/site:mnetlogintoremote', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
            return '';
        }

        if ($this->content !== NULL) {
            return $this->content;
        }

        // TODO: Test this query - it's appropriate? It works?
        // get the hosts and whether we are doing SSO with them
        $sql = "
             SELECT DISTINCT 
                 h.id, 
                 h.name
             FROM 
                 {$CFG->prefix}mnet_host h,
                 {$CFG->prefix}mnet_host2service h2s_IDP,
                 {$CFG->prefix}mnet_service s_IDP,
                 {$CFG->prefix}mnet_host2service h2s_SP,
                 {$CFG->prefix}mnet_service s_SP
             WHERE
                 h.id != '{$CFG->mnet_localhost_id}' AND
                 h.id = h2s_IDP.hostid AND
                 h2s_IDP.serviceid = s_IDP.id AND
                 s_IDP.name = 'sso_idp' AND
                 h2s_IDP.publish = '1' AND
                 h.id = h2s_SP.hostid AND
                 h2s_SP.serviceid = s_SP.id AND
                 s_SP.name = 'sso_idp' AND
                 h2s_SP.publish = '1'";

        $hosts = get_records_sql($sql);

        $this->content = new stdClass;
        $this->content->items = array();
        $this->content->icons = array();
        $this->content->footer = '';

        $icon  = "<img src=\"$CFG->pixpath/i/mnethost.png\"".
            " height=\"16\" width=\"16\" alt=\"".get_string('server', 'block_mnet_hosts')."\" />";

        foreach ($hosts as $host) {
            $this->content->icons[]=$icon;
            $this->content->items[]="<a title=\"" .s($host->name).
                "\" href=\"{$CFG->wwwroot}/auth/mnet/jump.php?hostid={$host->id}\">" . s($host->name) ."</a>";
        }

        return $this->content;
    }
}

?>