Fixes AJAX agent cache buttons

main
Yasen Pramatarov 2024-10-03 10:59:32 +03:00
parent 0791a4c2c9
commit d0ef53a176
4 changed files with 68 additions and 16 deletions

View File

@ -113,8 +113,8 @@ class Agent {
// check for agent cache
public function checkAgentCache($agent_id) {
$agent_cache_name = $agent_id . '_cache';
$agent_cache_time = $agent_id . '_time';
$agent_cache_name = 'agent' . $agent_id . '_cache';
$agent_cache_time = 'agent' . $agent_id . '_time';
return isset($_SESSION[$agent_cache_name]) && isset($_SESSION[$agent_cache_time]) && (time() - $_SESSION[$agent_cache_time] < 600);
}
@ -155,8 +155,8 @@ class Agent {
// 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';
$agent_cache_name = 'agent' . $agent_id . '_cache';
$agent_cache_time = 'agent' . $agent_id . '_time';
// check if the cache is still valid, unless force-refresh is requested
if (!$force && this->checkAgentCache($agent_id)) {
@ -193,6 +193,12 @@ class Agent {
}
// clear agent cache
public function clearAgentCache($agent_id) {
$_SESSION["agent{$agent_id}_cache"] = '';
$_SESSION["agent{$agent_id}_cache_time"] = '';
}
}
?>

View File

@ -17,9 +17,22 @@ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if ($result) {
$_SESSION["agent{$agent}_cache"] = $result;
$_SESSION["agent{$agent}_cache_time"] = time(); // store the cache time
echo json_encode(['status' => 'success']);
echo json_encode([
'status' => 'success',
'message' => "Cache for agent {$agent} is stored."
]);
} elseif ($result === null && !empty($agent)) {
unset($_SESSION["agent{$agent}_cache"]);
unset($_SESSION["agent{$agent}_cache_time"]);
echo json_encode([
'status' => 'success',
'message' => "Cache for agent {$agent} is cleared."
]);
} else {
echo json_encode(['status' => 'error', 'message' => 'Invalid data']);
echo json_encode([
'status' => 'error',
'message' => 'Invalid data'
]);
}
//// if it's a GET request, it's read/load from cache

View File

@ -22,13 +22,16 @@
// print_r($_SESSION);
?>
<?php if (isset($_SESSION["agent{$agent['id']}_cache"])) { ?>
<button class="btn btn-primary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="load recently cached data" onclick="loadCache('<?= htmlspecialchars($agent['id']) ?>')">load cache</button>
<button class="btn btn-primary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="get fresh data from agent" onclick="fetchData('<?= htmlspecialchars($agent['id']) ?>', '<?= htmlspecialchars($agent['url']) ?>', '<?= htmlspecialchars($agent['agent_endpoint']) ?>', '<?= htmlspecialchars($jwt) ?>', true)">force refresh</button>
<?php } else { ?>
<button class="btn btn-primary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="get data from the agent" onclick="fetchData('<?= htmlspecialchars($agent['id']) ?>', '<?= htmlspecialchars($agent['url']) ?>', '<?= htmlspecialchars($agent['agent_endpoint']) ?>', '<?= htmlspecialchars($jwt) ?>')">fetch data</button>
<button class="btn btn-light" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="no cache to refresh">force refresh</button>
<?php } ?>
<button id="agent<?= htmlspecialchars($agent['id']) ?>-fetch" class="btn btn-primary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="get data from the agent" onclick="fetchData('<?= htmlspecialchars($agent['id']) ?>', '<?= htmlspecialchars($agent['url']) ?>', '<?= htmlspecialchars($agent['agent_endpoint']) ?>', '<?= htmlspecialchars($jwt) ?>', true)">fetch data</button>
<button id="agent<?= htmlspecialchars($agent['id']) ?>-cache" class="btn btn-secondary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="load cache" onclick="loadCache('<?= htmlspecialchars($agent['id']) ?>')">load cache</button>
<button id="agent<?= htmlspecialchars($agent['id']) ?>-clear" class="btn btn-danger" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="clear cache" onclick="clearCache('<?= htmlspecialchars($agent['id']) ?>')">clear cache</button>
<span id="cacheInfo<?= htmlspecialchars($agent['id']) ?>" style="margin: 5px 0;"></span>
</p>
<pre class="results" id="result<?= htmlspecialchars($agent['id']) ?>">click a button to fetch data from the agent.</pre>
<?php } else { ?>
<button id="agent<?= htmlspecialchars($agent['id']) ?>-fetch" class="btn btn-primary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="get data from the agent" onclick="fetchData('<?= htmlspecialchars($agent['id']) ?>', '<?= htmlspecialchars($agent['url']) ?>', '<?= htmlspecialchars($agent['agent_endpoint']) ?>', '<?= htmlspecialchars($jwt) ?>')">fetch data</button>
<button style="display: none" disabled id="agent<?= htmlspecialchars($agent['id']) ?>-cache" class="btn btn-secondary" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="load cache" onclick="loadCache('<?= htmlspecialchars($agent['id']) ?>')">load cache</button>
<button style="display: none" disabled id="agent<?= htmlspecialchars($agent['id']) ?>-clear" class="btn btn-danger" data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="clear cache" onclick="clearCache('<?= htmlspecialchars($agent['id']) ?>')">clear cache</button>
<span style="display: none" id="cacheInfo<?= htmlspecialchars($agent['id']) ?>" style="margin: 5px 0;"></span>
<?php } ?>
</p>
<pre class="results" id="result<?= htmlspecialchars($agent['id']) ?>">click a button to display data from the agent.</pre>
<?php } ?>

View File

@ -2,6 +2,8 @@ function fetchData(agent_id, url, endpoint, jwtToken, force = false) {
// FIXME make use of force variable
let counter = 0;
const loadCacheButton = document.getElementById('agent' + agent_id + '-cache');
const clearCacheButton = document.getElementById('agent' + agent_id + '-clear');
const resultElement = document.getElementById("result" + agent_id);
const cacheInfoElement = document.getElementById("cacheInfo" + agent_id);
@ -56,15 +58,22 @@ function fetchData(agent_id, url, endpoint, jwtToken, force = false) {
// show the result in the html
resultElement.innerHTML = JSON.stringify(result, null, 2);
// Show the cache timestamp from the session
// get the cache timestamp from the session
const now = Date.now();
const cacheTimestamp = new Date(now);
// Display the cache retrieval date and time
// display the cache retrieval date and time
const formattedDate = cacheTimestamp.toLocaleDateString();
const formattedTime = cacheTimestamp.toLocaleTimeString();
cacheInfoElement.style.display = '';
cacheInfoElement.innerHTML = `cache refreshed on ${formattedDate} at ${formattedTime}`;
// show the cache buttons
loadCacheButton.disabled = false;
loadCacheButton.style.display = '';
clearCacheButton.disabled = false;
clearCacheButton.style.display = '';
// send the result to PHP to store in session
saveResultToSession(result, agent_id);
}
@ -165,6 +174,27 @@ function loadCache(agent_id) {
}
// clear cache
function clearCache(agent_id) {
const loadCacheButton = document.getElementById('agent' + agent_id + '-cache');
const clearCacheButton = document.getElementById('agent' + agent_id + '-clear');
const cacheInfoElement = document.getElementById('cacheInfo' + agent_id);
const resultElement = document.getElementById("result" + agent_id);
saveResultToSession(null, agent_id);
// hides the cache buttons
// FIXME add a check whether the saveResult function was successful
loadCacheButton.disabled = true;
loadCacheButton.style.display = 'none';
clearCacheButton.disabled = true;
clearCacheButton.style.display = 'none';
cacheInfoElement.innerHTML = '';
cacheInfoElement.style.display = 'none';
resultElement.innerHTML = 'click a button to to display data from the agent.';
}
// we send result to PHP session, to be available to the whole app
function saveResultToSession(result, agent_id) {
var xhr = new XMLHttpRequest();