PHP lti_request_is_using_ssl函数代码示例

/**
 * Given a coursemodule object, this function returns the extra
 * information needed to print this activity in various places.
 * For this module we just need to support external urls as
 * activity icons
 *
 * @param stdClass $coursemodule
 * @return cached_cm_info info
 */
function lti_get_coursemodule_info($coursemodule)
{
    global $DB, $CFG;
    require_once $CFG->dirroot . '/mod/lti/locallib.php';
    if (!($lti = $DB->get_record('lti', array('id' => $coursemodule->instance), 'icon, secureicon, intro, introformat, name, typeid, toolurl, launchcontainer'))) {
        return null;
    }
    $info = new cached_cm_info();
    if ($coursemodule->showdescription) {
        // Convert intro to html. Do not filter cached version, filters run at display time.
        $info->content = format_module_intro('lti', $lti, $coursemodule->id, false);
    }
    if (!empty($lti->typeid)) {
        $toolconfig = lti_get_type_config($lti->typeid);
    } else {
        if ($tool = lti_get_tool_by_url_match($lti->toolurl)) {
            $toolconfig = lti_get_type_config($tool->id);
        } else {
            $toolconfig = array();
        }
    }
    // We want to use the right icon based on whether the
    // current page is being requested over http or https.
    if (lti_request_is_using_ssl() && (!empty($lti->secureicon) || isset($toolconfig['secureicon']) && !empty($toolconfig['secureicon']))) {
        if (!empty($lti->secureicon)) {
            $info->iconurl = new moodle_url($lti->secureicon);
        } else {
            $info->iconurl = new moodle_url($toolconfig['secureicon']);
        }
    } else {
        if (!empty($lti->icon)) {
            $info->iconurl = new moodle_url($lti->icon);
        } else {
            if (isset($toolconfig['icon']) && !empty($toolconfig['icon'])) {
                $info->iconurl = new moodle_url($toolconfig['icon']);
            }
        }
    }
    // Does the link open in a new window?
    $launchcontainer = lti_get_launch_container($lti, $toolconfig);
    if ($launchcontainer == LTI_LAUNCH_CONTAINER_WINDOW) {
        $launchurl = new moodle_url('/mod/lti/launch.php', array('id' => $coursemodule->id));
        $info->onclick = "window.open('" . $launchurl->out(false) . "', 'lti'); return false;";
    }
    $info->name = $lti->name;
    return $info;
}

    $pageurl->param('id', $id);
}
$PAGE->set_url($pageurl);
admin_externalpage_setup('managemodules');
// Hacky solution for printing the admin page.
$redirect = "{$CFG->wwwroot}/{$CFG->admin}/settings.php?section=modsettinglti&tab={$tab}";
if ($action == 'accept') {
    lti_set_state_for_type($id, LTI_TOOL_STATE_CONFIGURED);
    redirect($redirect);
} else {
    if ($action == 'reject' || $action == 'delete') {
        lti_set_state_for_type($id, LTI_TOOL_STATE_REJECTED);
        redirect($redirect);
    }
}
if (lti_request_is_using_ssl() && !empty($type->lti_secureicon)) {
    $type->oldicon = $type->lti_secureicon;
} else {
    $type->oldicon = $type->lti_icon;
}
$form = new mod_lti_edit_types_form($pageurl, (object) array('isadmin' => true, 'istool' => true));
if ($data = $form->get_data()) {
    $type = new stdClass();
    if (!empty($id)) {
        $type->id = $id;
        lti_update_type($type, $data);
    } else {
        $type->state = LTI_TOOL_STATE_CONFIGURED;
        lti_add_type($type, $data);
    }
    redirect($redirect);

/**
 * Given a coursemodule object, this function returns the extra
 * information needed to print this activity in various places.
 * For this module we just need to support external urls as
 * activity icons
 *
 * @param cm_info $coursemodule
 * @return cached_cm_info info
 */
function lti_get_coursemodule_info($coursemodule) {
    global $DB, $CFG;
    require_once($CFG->dirroot.'/mod/lti/locallib.php');

    if (!$lti = $DB->get_record('lti', array('id' => $coursemodule->instance),
            'icon, secureicon, intro, introformat, name')) {
        return null;
    }

    $info = new cached_cm_info();

    // We want to use the right icon based on whether the
    // current page is being requested over http or https.
    if (lti_request_is_using_ssl() && !empty($lti->secureicon)) {
        $info->iconurl = new moodle_url($lti->secureicon);
    } else if (!empty($lti->icon)) {
        $info->iconurl = new moodle_url($lti->icon);
    }

    if ($coursemodule->showdescription) {
        // Convert intro to html. Do not filter cached version, filters run at display time.
        $info->content = format_module_intro('lti', $lti, $coursemodule->id, false);
    }

    $info->name = $lti->name;

    return $info;
}

/**
 * Prints a Basic LTI activity
 *
 * $param int $basicltiid       Basic LTI activity id
 */
function lti_view($instance) {
    global $PAGE, $CFG;

    if (empty($instance->typeid)) {
        $tool = lti_get_tool_by_url_match($instance->toolurl, $instance->course);
        if ($tool) {
            $typeid = $tool->id;
        } else {
            $typeid = null;
        }
    } else {
        $typeid = $instance->typeid;
    }

    if ($typeid) {
        $typeconfig = lti_get_type_config($typeid);
    } else {
        //There is no admin configuration for this tool. Use configuration in the lti instance record plus some defaults.
        $typeconfig = (array)$instance;

        $typeconfig['sendname'] = $instance->instructorchoicesendname;
        $typeconfig['sendemailaddr'] = $instance->instructorchoicesendemailaddr;
        $typeconfig['customparameters'] = $instance->instructorcustomparameters;
        $typeconfig['acceptgrades'] = $instance->instructorchoiceacceptgrades;
        $typeconfig['allowroster'] = $instance->instructorchoiceallowroster;
        $typeconfig['forcessl'] = '0';
    }

    //Default the organizationid if not specified
    if (empty($typeconfig['organizationid'])) {
        $urlparts = parse_url($CFG->wwwroot);

        $typeconfig['organizationid'] = $urlparts['host'];
    }

    if (!empty($instance->resourcekey)) {
        $key = $instance->resourcekey;
    } else if (!empty($typeconfig['resourcekey'])) {
        $key = $typeconfig['resourcekey'];
    } else {
        $key = '';
    }

    if (!empty($instance->password)) {
        $secret = $instance->password;
    } else if (!empty($typeconfig['password'])) {
        $secret = $typeconfig['password'];
    } else {
        $secret = '';
    }

    $endpoint = !empty($instance->toolurl) ? $instance->toolurl : $typeconfig['toolurl'];
    $endpoint = trim($endpoint);

    //If the current request is using SSL and a secure tool URL is specified, use it
    if (lti_request_is_using_ssl() && !empty($instance->securetoolurl)) {
        $endpoint = trim($instance->securetoolurl);
    }

    //If SSL is forced, use the secure tool url if specified. Otherwise, make sure https is on the normal launch URL.
    if ($typeconfig['forcessl'] == '1') {
        if (!empty($instance->securetoolurl)) {
            $endpoint = trim($instance->securetoolurl);
        }

        $endpoint = lti_ensure_url_is_https($endpoint);
    } else {
        if (!strstr($endpoint, '://')) {
            $endpoint = 'http://' . $endpoint;
        }
    }

    $orgid = $typeconfig['organizationid'];

    $course = $PAGE->course;
    $requestparams = lti_build_request($instance, $typeconfig, $course);

    $launchcontainer = lti_get_launch_container($instance, $typeconfig);
    $returnurlparams = array('course' => $course->id, 'launch_container' => $launchcontainer, 'instanceid' => $instance->id);

    if ( $orgid ) {
        $requestparams["tool_consumer_instance_guid"] = $orgid;
    }

    if (empty($key) || empty($secret)) {
        $returnurlparams['unsigned'] = '1';

        //Add the return URL. We send the launch container along to help us avoid frames-within-frames when the user returns
        $url = new moodle_url('/mod/lti/return.php', $returnurlparams);
        $returnurl = $url->out(false);

        if ($typeconfig['forcessl'] == '1') {
            $returnurl = lti_ensure_url_is_https($returnurl);
        }

//.........这里部分代码省略.........

function lti_update_type($type, $config)
{
    global $DB, $CFG;
    lti_prepare_type_for_save($type, $config);
    $clearcache = false;
    if (lti_request_is_using_ssl() && !empty($type->secureicon)) {
        $clearcache = !isset($config->oldicon) || $config->oldicon !== $type->secureicon;
    } else {
        $clearcache = isset($type->icon) && (!isset($config->oldicon) || $config->oldicon !== $type->icon);
    }
    unset($config->oldicon);
    if ($DB->update_record('lti_types', $type)) {
        foreach ($config as $key => $value) {
            if (substr($key, 0, 4) == 'lti_' && !is_null($value)) {
                $record = new \StdClass();
                $record->typeid = $type->id;
                $record->name = substr($key, 4);
                $record->value = $value;
                lti_update_config($record);
            }
        }
        require_once $CFG->libdir . '/modinfolib.php';
        if ($clearcache) {
            rebuild_course_cache();
        }
    }
}

/**
 * Prints a Basic LTI activity
 *
 * $param int $basicltiid       Basic LTI activity id
 */
function lti_view($instance)
{
    global $PAGE, $CFG;
    if (empty($instance->typeid)) {
        $tool = lti_get_tool_by_url_match($instance->toolurl, $instance->course);
        if ($tool) {
            $typeid = $tool->id;
        } else {
            $typeid = null;
        }
    } else {
        $typeid = $instance->typeid;
    }
    if ($typeid) {
        $typeconfig = lti_get_type_config($typeid);
    } else {
        //There is no admin configuration for this tool. Use configuration in the lti instance record plus some defaults.
        $typeconfig = (array) $instance;
        $typeconfig['sendname'] = $instance->instructorchoicesendname;
        $typeconfig['sendemailaddr'] = $instance->instructorchoicesendemailaddr;
        $typeconfig['customparameters'] = $instance->instructorcustomparameters;
        $typeconfig['acceptgrades'] = $instance->instructorchoiceacceptgrades;
        $typeconfig['allowroster'] = $instance->instructorchoiceallowroster;
        $typeconfig['forcessl'] = '0';
    }
    //Default the organizationid if not specified
    if (empty($typeconfig['organizationid'])) {
        $urlparts = parse_url($CFG->wwwroot);
        $typeconfig['organizationid'] = $urlparts['host'];
    }
    if (!empty($instance->resourcekey)) {
        $key = $instance->resourcekey;
    } else {
        if (!empty($typeconfig['resourcekey'])) {
            $key = $typeconfig['resourcekey'];
        } else {
            $key = '';
        }
    }
    if (!empty($instance->password)) {
        $secret = $instance->password;
    } else {
        if (!empty($typeconfig['password'])) {
            $secret = $typeconfig['password'];
        } else {
            $secret = '';
        }
    }
    $endpoint = !empty($instance->toolurl) ? $instance->toolurl : $typeconfig['toolurl'];
    $endpoint = trim($endpoint);
    //If the current request is using SSL and a secure tool URL is specified, use it
    if (lti_request_is_using_ssl() && !empty($instance->securetoolurl)) {
        $endpoint = trim($instance->securetoolurl);
    }
    //If SSL is forced, use the secure tool url if specified. Otherwise, make sure https is on the normal launch URL.
    if ($typeconfig['forcessl'] == '1') {
        if (!empty($instance->securetoolurl)) {
            $endpoint = trim($instance->securetoolurl);
        }
        $endpoint = lti_ensure_url_is_https($endpoint);
    } else {
        if (!strstr($endpoint, '://')) {
            $endpoint = 'http://' . $endpoint;
        }
    }
    $orgid = $typeconfig['organizationid'];
    $course = $PAGE->course;
    $requestparams = lti_build_request($instance, $typeconfig, $course, $typeid);
    $launchcontainer = lti_get_launch_container($instance, $typeconfig);
    $returnurlparams = array('course' => $course->id, 'launch_container' => $launchcontainer, 'instanceid' => $instance->id);
    if ($orgid) {
        $requestparams["tool_consumer_instance_guid"] = $orgid;
    }
    if (!empty($CFG->mod_lti_institution_name)) {
        $requestparams['tool_consumer_instance_name'] = $CFG->mod_lti_institution_name;
    } else {
        $requestparams['tool_consumer_instance_name'] = get_site()->fullname;
    }
    if (empty($key) || empty($secret)) {
        $returnurlparams['unsigned'] = '1';
    }
    // Add the return URL. We send the launch container along to help us avoid frames-within-frames when the user returns.
    $url = new moodle_url('/mod/lti/return.php', $returnurlparams);
    $returnurl = $url->out(false);
    if ($typeconfig['forcessl'] == '1') {
        $returnurl = lti_ensure_url_is_https($returnurl);
    }
    $target = null;
    switch ($launchcontainer) {
        case LTI_LAUNCH_CONTAINER_EMBED:
        case LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS:
            $target = 'iframe';
            break;
        case LTI_LAUNCH_CONTAINER_REPLACE_MOODLE_WINDOW:
            $target = 'frame';
//.........这里部分代码省略.........

function lti_update_type($type, $config) {
    global $DB, $CFG;

    lti_prepare_type_for_save($type, $config);

    $clearcache = false;
    if (lti_request_is_using_ssl() && !empty($type->secureicon)) {
        $clearcache = !isset($config->oldicon) || ($config->oldicon !== $type->secureicon);
    } else {
        $clearcache = isset($type->icon) && (!isset($config->oldicon) || ($config->oldicon !== $type->icon));
    }
    unset($config->oldicon);

    if ($DB->update_record('lti_types', $type)) {
        foreach ($config as $key => $value) {
            if (substr($key, 0, 4) == 'lti_' && !is_null($value)) {
                $record = new \StdClass();
                $record->typeid = $type->id;
                $record->name = substr($key, 4);
                $record->value = $value;
                lti_update_config($record);
            }
        }
        require_once($CFG->libdir.'/modinfolib.php');
        if ($clearcache) {
            $sql = "SELECT DISTINCT course
                      FROM {lti}
                     WHERE typeid = ?";

            $courses = $DB->get_fieldset_sql($sql, array($type->id));

            foreach ($courses as $courseid) {
                rebuild_course_cache($courseid, true);
            }
        }
    }
}