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<?php |
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namespace Zwartpet\PHPCertificateToolbox; |
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use Psr\Log\AbstractLogger; |
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/** |
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* A PSR-3 logger you can use for troubleshooting (note you can use any PSR-3 compatible logger) |
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* |
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* This retains logs in memory and you can dump them when it suits you. In a console app |
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* use dumpConsole() which will output colour-coded logs (pass false to disable this). In a web app, |
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* you can use dumpHTML() to output or obtain an HTML rendering of the logs. |
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*/ |
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class DiagnosticLogger extends AbstractLogger |
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{ |
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private $logs = []; |
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public function log($level, $message, array $context = []) |
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{ |
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$this->logs[] = [$level, $message, $context]; |
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} |
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public function dumpConsole($useColours = true) |
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{ |
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$colours = [ |
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'alert' => "\e[97m\e[41m", |
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'emergency' => "\e[97m\e[41m", |
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'critical' => "\e[97m\e[41m", |
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'error' => "\e[91m", |
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'warning' => "\e[93m", |
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'notice' => "\e[96m", |
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'info' => "\e[92m", |
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'debug' => "\e[2m", |
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]; |
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$reset = $useColours ? "\e[0m" : ''; |
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foreach ($this->logs as $log) { |
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$col = $useColours ? $colours[$log[0]] : ''; |
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echo $col . $log[0] . ': ' . $this->interpolateMessage($log[1], $log[2]) . $reset . "\n"; |
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} |
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} |
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public function dumpHTML($echo = true) |
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{ |
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$html = '<div class="liblynx-diagnostic-log">'; |
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$html .= '<table class="table"><thead><tr><th>Level</th><th>Message</th></tr></thead><tbody>'; |
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$html .= "\n"; |
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foreach ($this->logs as $log) { |
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$html .= '<tr class="level-' . $log[0] . '"><td>' . $log[0] . '</td><td>' . |
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htmlentities($this->interpolateMessage($log[1], $log[2])) . |
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"</td></tr>\n"; |
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} |
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$html .= "</tbody></table></div>\n"; |
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if ($echo) { |
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echo $html; //@codeCoverageIgnore |
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} |
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return $html; |
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} |
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/** |
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* Interpolates context values into the message placeholders. |
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*/ |
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private function interpolateMessage($message, array $context = []) |
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{ |
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// build a replacement array with braces around the context keys |
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$replace = []; |
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foreach ($context as $key => $val) { |
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// check that the value can be casted to string |
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if (!is_array($val) && (!is_object($val) || method_exists($val, '__toString'))) { |
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$replace['{' . $key . '}'] = $val; |
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} |
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} |
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// interpolate replacement values into the message and return |
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return strtr($message, $replace); |
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} |
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public function cleanLogs() |
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{ |
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$logs = $this->logs; |
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$this->logs = []; |
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return $logs; |
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} |
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public function countLogs($level) |
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{ |
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$count = 0; |
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foreach ($this->logs as $log) { |
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if ($log[0] == $level) { |
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$count++; |
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} |
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} |
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return $count; |
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} |
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} |
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Zwartpet /
php-certificate-toolbox
