/**
* Show error log @ingroup pages
*/
function showLog()
{
global $PH;
echo "<pre>";
### get contents of a file into a string
$filename = "_tmp/errors.log.php";
$handle = fopen($filename, "r");
$last_error_time = NULL;
$hide_errors = get('hide_errors');
$hide_error_hash = array();
foreach (explode(',', $hide_errors) as $error) {
if ($error) {
$hide_error_hash[$error] = true;
}
}
if ($hide_error_hash) {
echo "hidden:<br>";
foreach ($hide_error_hash as $key => $value) {
$list = '';
foreach ($hide_error_hash as $key2 => $value2) {
if ($key2 != $key) {
$list .= "," . $key2;
}
}
echo "{$key} (" . $PH->getLink('showLog', 'show', array('hide_errors' => $list));
echo ")<br>";
}
}
echo $PH->getLink('systemInfo', 'back to sysInfo') . " | ";
echo $PH->getLink('showLog', 'log', array('showlog' => 1)) . " | ";
echo $PH->getLink('showLog', 'errors', array()) . " | ";
echo $PH->getLink('showLog', 'newbots', array('newbots' => 1)) . " | ";
echo "<hr>";
$count_requests = 0;
$count_requests_by_crawlers = 0;
$new_bots = array();
while (!feof($handle)) {
$line = fgets($handle);
#echo asHtml($line) . "<br>";
if (preg_match("/(\\w+) (\\d+)\\s*(.*)/", $line, $matches)) {
$cat = $matches[1];
$time = $matches[2];
$rest = $matches[3];
if (get('newbots')) {
if ($cat == 'Log') {
$count_requests++;
if (preg_match("/\\((.*)\\)/", $rest, $matches_bot)) {
$agent_string = $matches_bot[1];
### skip known crawlers.
if (!Auth::agentStringMatchesCrawler($agent_string)) {
if (preg_match("/bot|crawler|spider/i", $agent_string)) {
if (!isset($new_bots[$agent_string])) {
$new_bots[$agent_string] = 1;
#echo asHtml($agent_string) . "<br>";
} else {
$new_bots[$agent_string]++;
}
}
} else {
$count_requests_by_crawlers++;
}
}
}
} else {
if (get('time')) {
if ($time && $time == get('time')) {
echo asHtml($line);
}
} else {
if ($cat == 'Error') {
if (preg_match("/(\\w+):\\s*([^\\:\\s]+)\\s*:\\s*(\\d+)(.*)/", $rest, $matches)) {
$type = $matches[1];
$file = trim($matches[2]);
$line = $matches[3];
$rest = $matches[4];
if (!isset($hide_error_hash[$file . ':' . $line])) {
if ($time != $last_error_time) {
echo $PH->getLink('showLog', $time, array('time' => $time));
echo " {$type}: <b>{$file}:{$line}</b> - {$rest} (";
echo $PH->getLink('showLog', __('hide'), array('hide_errors' => $hide_errors . ',' . $file . ':' . $line));
echo ")<br>";
$last_error_time = $time;
}
}
}
} else {
if (get('showlog')) {
echo "{$line}";
}
}
}
}
}
}
fclose($handle);
if (get('newbots')) {
foreach ($new_bots as $bot => $count) {
printf("%6d %s<br>", $count, $bot);
}
}
}
/**
* detects if current user is a web-crawler
*
* If ANONYMOUS_USER is allowed, web crawlers will cause heavy traffic
* because for testing all availble links on the page, include history,
* difference-pages, view toggles, etc.
*
* To avoid this Page handles can be disabled for crawlers.
*/
public static function isCrawler()
{
if (!Auth::isAnonymousUser()) {
return false;
}
return Auth::agentStringMatchesCrawler(getServerVar('HTTP_USER_AGENT'));
}
