jilo-web/app/classes/agent.php

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<?php
class Agent {
private $db;
public function __construct($database) {
$this->db = $database->getConnection();
}
// get details of a specified agent ID (or all) in a specified platform ID
public function getAgentDetails($platform_id, $agent_id = '') {
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$sql = 'SELECT
ja.id,
ja.platform_id,
ja.agent_type_id,
ja.url,
ja.secret_key,
jat.description AS agent_description,
jat.endpoint AS agent_endpoint
FROM
jilo_agents ja
JOIN
jilo_agent_types jat ON ja.agent_type_id = jat.id
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WHERE
platform_id = :platform_id';
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if ($agent_id !== '') {
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$sql .= ' AND ja.id = :agent_id';
}
$query = $this->db->prepare($sql);
$query->bindParam(':platform_id', $platform_id);
if ($agent_id !== '') {
$query->bindParam(':agent_id', $agent_id);
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}
$query->execute();
return $query->fetchAll(PDO::FETCH_ASSOC);
}
// add new agent
public function addAgent($platform_id, $newAgent) {
try {
$sql = 'INSERT INTO jilo_agents
(platform_id, agent_type_id, url, secret_key)
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VALUES
(:platform_id, :agent_type_id, :url, :secret_key)';
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$query = $this->db->prepare($sql);
$query->execute([
':platform_id' => $platform_id,
':agent_type_id' => $newAgent['type_id'],
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':url' => $newAgent['url'],
':secret_key' => $newAgent['secret_key'],
]);
return true;
} catch (Exception $e) {
return $e->getMessage();
}
}
// edit an existing agent
public function editAgent($platform_id, $updatedAgent) {
try {
$sql = 'UPDATE jilo_agents SET
agent_type_id = :agent_type_id,
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url = :url,
secret_key = :secret_key
WHERE
id = :agent_id
AND
platform_id = :platform_id';
$query = $this->db->prepare($sql);
$query->execute([
':agent_type_id' => $updatedAgent['agent_type_id'],
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':url' => $updatedAgent['url'],
':secret_key' => $updatedAgent['secret_key'],
':agent_id' => $updatedAgent['id'],
':platform_id' => $platform_id,
]);
return true;
} catch (Exception $e) {
return $e->getMessage();
}
}
// delete an agent
public function deleteAgent($agent_id) {
try {
$sql = 'DELETE FROM jilo_agents
WHERE
id = :agent_id';
$query = $this->db->prepare($sql);
$query->bindParam(':agent_id', $agent_id);
$query->execute();
return true;
} catch (Exception $e) {
return $e->getMessage();
}
}
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// check for agent cache
public function checkAgentCache($agent_id) {
$agent_cache_name = $agent_id . '_cache';
$agent_cache_time = $agent_id . '_time';
return isset($_SESSION[$agent_cache_name]) && isset($_SESSION[$agent_cache_time]) && (time() - $_SESSION[$agent_cache_time] < 600);
}
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// fetch result from jilo agent API
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public function fetchAgent($agent_id, $force = false) {
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// we need agent details for URL and JWT token
$agent = $this->getAgentDetails($agent_id);
$agent_cache_name = $agent_id . '_cache';
$agent_cache_time = $agent_id . '_time';
// check if the cache is still valid, unless force-refresh is requested
if (!$force && this->checkAgentCache($agent_id)) {
return $_SESSION[$agent_cache_name];
}
// Make the API request
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $agent[0]['url']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10); // timeout 10 seconds
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$response = curl_exec($ch);
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$curl_error = curl_error($ch);
$curl_errno = curl_errno($ch);
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curl_close($ch);
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// general curl error
if ($curl_error) {
return json_encode(['error' => 'curl error: ' . $curl_error]);
}
// other custom error(s)
if (strpos($response, 'Auth header not received') !== false) {
return json_encode(['error' => 'Auth header not received']);
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}
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// Cache the result and the timestamp if the response is successful
$_SESSION[$agent_cache_name] = $response;
$_SESSION[$agent_cache_time] = time();
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return $response;
}
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}
?>