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Support Moodle 4.5
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Nathan Nguyen committed Nov 27, 2024
1 parent 9da5d9d commit 50daead
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10 changes: 5 additions & 5 deletions README.md
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Expand Up @@ -27,10 +27,11 @@ In general a metric is any real time value that you might push to another servic

## Branches

| Moodle version | Branch | PHP |
|-------------------|------------------|------|
| Moodle 3.5+ | MOODLE_35_STABLE | 7.1+ |
| Totara 10+ | MOODLE_35_STABLE | 7.1+ |
| Moodle version | Branch | PHP |
|------------------|-------------------|------|
| Moodle 3.5 - 4.3 | MOODLE_35_STABLE | 7.1+ |
| Moodle 4.4+ | MOODLE_404_STABLE | 8.1+ |
| Totara 10+ | MOODLE_35_STABLE | 7.1+ |

## Architecture

Expand Down Expand Up @@ -106,7 +107,6 @@ Sends metric data to AWS Cloudwatch
https://docs.aws.amazon.com/cloudwatch/

#### Requires
- local/aws AWS SDK plugin (https://github.com/catalyst/moodle-local_aws)
- AWS account
- IAM user

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87 changes: 87 additions & 0 deletions classes/admin_settings_aws_region.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.

/**
* Admin setting for AWS regions.
*
* @package tool_cloudmetrics
* @author Dmitrii Metelkin <[email protected]>
* @copyright 2020 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/

namespace tool_cloudmetrics;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot . '/lib/adminlib.php');

/**
* Admin setting for a list of AWS regions.
*
* @package tool_cloudmetrics
* @copyright 2020 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class admin_settings_aws_region extends \admin_setting_configtext {

/**
* Return part of form with setting.
*
* @param mixed $data array or string depending on setting
* @param string $query
* @return string
*/
public function output_html($data, $query='') {
global $CFG;

$default = $this->get_defaultsetting();

$options = [];

$all = require($CFG->dirroot . '/lib/aws-sdk/src/data/endpoints.json.php');
$ends = $all['partitions'][0]['regions'];
if ($ends) {
foreach ($ends as $key => $value) {
$options[] = [
'value' => $key,
'label' => $key . ' - ' . $value['description'],
];
}
}

$inputparams = array(
'type' => 'text',
'list' => $this->get_full_name(),
'name' => $this->get_full_name(),
'value' => $data,
'size' => $this->size,
'id' => $this->get_id(),
'class' => 'form-control text-ltr',
);

$element = \html_writer::start_tag('div', array('class' => 'form-text defaultsnext'));
$element .= \html_writer::empty_tag('input', $inputparams);
$element .= \html_writer::start_tag('datalist', array('id' => $this->get_full_name()));
foreach ($options as $option) {
$element .= \html_writer::tag('option', $option['label'], array('value' => $option['value']));
}
$element .= \html_writer::end_tag('datalist');
$element .= \html_writer::end_tag('div');

return format_admin_setting($this, $this->visiblename, $element, $this->description, true, '', $default, $query);
}
}
100 changes: 100 additions & 0 deletions classes/aws_helper.php
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@@ -0,0 +1,100 @@
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.

/**
* AWS helper class. Contains useful functions when interacting with the SDK.
*
* @package tool_cloudmetrics
* @author Peter Burnett <[email protected]>
* @copyright 2020 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/

namespace tool_cloudmetrics;

use Aws\CommandInterface;
use Aws\AwsClient;
use Psr\Http\Message\RequestInterface;

/**
* This class contains functions that help plugins to interact with the AWS SDK.
*
* @copyright 2020 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class aws_helper {

/**
* This creates a proxy string suitable for use with the AWS SDK.
*
* @return string the string to use for proxy settings.
*/
public static function get_proxy_string() {
global $CFG;
$proxy = '';
if (empty($CFG->proxytype)) {
return $proxy;
}
if ($CFG->proxytype === 'SOCKS5') {
// If it is a SOCKS proxy, append the protocol info.
$protocol = 'socks5://';
} else {
$protocol = '';
}
if (!empty($CFG->proxyhost)) {
$proxy = $CFG->proxyhost;
if (!empty($CFG->proxyport)) {
$proxy .= ':'. $CFG->proxyport;
}
if (!empty($CFG->proxyuser) && !empty($CFG->proxypassword)) {
$proxy = $protocol . $CFG->proxyuser . ':' . $CFG->proxypassword . '@' . $proxy;
}
}
return $proxy;
}

/**
* Configure the provided AWS client to route traffic via the moodle proxy for any hosts not excluded.
*
* @param AwsClient $client
* @return AwsClient
*/
public static function configure_client_proxy(AwsClient $client): AwsClient {
$client->getHandlerList()->appendBuild(self::add_proxy_when_required(), 'proxy_bypass');
return $client;
}

/**
* Generate a middleware higher order function to wrap the handler and append proxy configuration based on target.
*
* @return callable Middleware high order callable.
*/
protected static function add_proxy_when_required(): callable {
return function (callable $fn) {
return function (CommandInterface $command, ?RequestInterface $request = null) use ($fn) {
if (isset($request)) {
$target = (string) $request->getUri();
if (!is_proxybypass($target)) {
$command['@http']['proxy'] = self::get_proxy_string();
}
}

$promise = $fn($command, $request);
return $promise;
};
};
}
}
62 changes: 62 additions & 0 deletions classes/client_factory.php
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@@ -0,0 +1,62 @@
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.

/**
* AWS Client factory. Retrieves a client with moodle specific HTTP configuration.
*
* @package tool_cloudmetrics
* @author Peter Burnett <[email protected]>
* @copyright 2022 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/

namespace tool_cloudmetrics;
use \Aws\AwsClient;

/**
* AWS Client factory. Retrieves a client with moodle specific HTTP configuration.
*
* @copyright 2022 Catalyst IT
* @author Peter Burnett <[email protected]>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class client_factory {
/**
* Get an AWS client with moodle specific HTTP configuration.
*
* @param string $class Fully qualified AWS classname e.g. \Aws\S3\S3Client
* @param array $opts array of constructor options for AWS Client.
* @return AwsClient
*/
public static function get_client(string $class, array $opts): AwsClient {
// Modify the opts to add HTTP timeouts.
if (empty($opts['http'])) {
$opts['http'] = ['connect_timeout' => HOURSECS];
} else if (is_array($opts['http'] && !array_key_exists('connect_timeout', $opts['http']))) {
// Try not to override existing settings.
$opts['http']['connect_timeout'] = HOURSECS;
}

// Blindly trust the call here. If it exceptions, the raw message is the most useful.
$client = new $class($opts);
if (!$client instanceof \Aws\AwsClient) {
throw new \moodle_exception('clientnotfound', 'tool_cloudmetrics');
}

// Now we can configure the proxy with the routing aware middleware.
return aws_helper::configure_client_proxy($client);
}
}
10 changes: 2 additions & 8 deletions collector/cloudwatch/classes/collector.php
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Expand Up @@ -16,15 +16,9 @@

namespace cltr_cloudwatch;

use local_aws\local\client_factory;
use tool_cloudmetrics\collector\base;
use tool_cloudmetrics\metric\metric_item;

defined('MOODLE_INTERNAL') || die();

require_once($CFG->dirroot . '/local/aws/sdk/aws-autoloader.php');


use tool_cloudmetrics\client_factory;
/**
* Collector class for AWS Cloudwatch.
*
Expand Down Expand Up @@ -130,6 +124,6 @@ public function is_ready(): bool {
return false;
}

return lib::is_plugin_usable() && !is_null(self::$client);
return !is_null(self::$client);
}
}
12 changes: 0 additions & 12 deletions collector/cloudwatch/classes/lib.php
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Expand Up @@ -27,18 +27,6 @@
class lib {
/** @var string AWS version*/
const AWS_VERSION = '2010-08-01';
/** @var int Local AWS version*/
const LOCAL_AWS_VERSION = 2022033100;

/**
* Returns if the plugin can be used.
*
* @return bool
*/
public static function is_plugin_usable() {
return (class_exists('\local_aws\local\client_factory') &&
class_exists('\local_aws\admin_settings_aws_region'));
}

/**
* Get the configuration values for the plugin, substituting in defaults where
Expand Down
2 changes: 0 additions & 2 deletions collector/cloudwatch/lang/en/cltr_cloudwatch.php
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Expand Up @@ -52,5 +52,3 @@

// Missing requirements.
$string['unsatisfied_requirements'] = 'Unsatisfied Requirements';
$string['aws:installneeded'] = 'Plugin \'local_aws\' of version {$a} is required.';
$string['aws:upgradeneeded'] = 'Plugin \'local_aws\' needs to be upgraded to version {$a}.';
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