add html email formatter

src/Monolog/Formatter/HtmlEmailFormatter.php

@@ -0,0 +1,103 @@
+<?php
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Formats incoming records into a HTML table
+ *
+ * This is especially useful for html email logging
+ *
+ * @author Tiago Brito <tlfbrito@gmail.com>
+ */
+class HtmlEmailFormatter extends NormalizerFormatter {
+
+    /**
+     * Translates Monolog log levels to html colors priorities.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => '#cccccc',
+        Logger::INFO      => '#468847',
+        Logger::NOTICE    => '#3a87ad',
+        Logger::WARNING   => '#c09853',
+        Logger::ERROR     => '#f0ad4e',
+        Logger::CRITICAL  => '#b94a48',
+        Logger::ALERT     => '#d9534f',
+        Logger::EMERGENCY => '#ffffff',
+    );
+    /**
+     * @param string $format     The format of the message
+     * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
+     */
+    public function __construct($format = null, $dateFormat = null)
+    {
+        parent::__construct($dateFormat);
+    }
+
+    private function addRow($th, $td='&nbsp;')
+    {
+        return "<tr style=\"padding: 4px;spacing: 0;text-align: left;\">\n<th style=\"background:#cccccc\" width=\"100px\">$th:</th>\n<td style=\"padding: 4px;spacing: 0;text-align: left;background:#eeeeee\">".nl2br($td)."</td>\n</tr>";
+    }
+
+    private function addTitle($title, $level)
+  {
+      return '<h1 style="background: '.$this->logLevels[$level].'; color:#ffffff;padding:5px;">'.$title.'</h1>';
+  }
+    /**
+     * Formats a log record.
+     *
+     * @param  array $record A record to format
+     * @return mixed The formatted record
+     */
+    public function format(array $record)
+    {
+        $output = $this->addTitle($this->convertToString($record['level_name']), $record['level']);
+        $output .= '<table>';
+
+        $output .= $this->addRow('Message', $this->convertToString($record['message']));
+        $output .= $this->addRow('Generated at', $this->convertToString($record['datetime']));
+        $output .= $this->addRow('Level', $this->convertToString($record['level']));
+        $output .= $this->addRow('Channel', $this->convertToString($record['channel']));
+        $output .= $this->addRow('Context', $this->convertToString($record['context']));
+        $output .= $this->addRow('Extra', $this->convertToString($record['extra']));
+
+        return $output.'</table>';
+    }
+
+    /**
+     * Formats a set of log records.
+     *
+     * @param  array $records A set of records to format
+     * @return mixed The formatted set of records
+     */
+    public function formatBatch(array $records)
+    {
+        $message = '';
+        foreach ($records as $record) {
+            $message .= $this->format($record);
+        }
+
+        return $message;
+    }
+
+    protected function convertToString($data)
+    {
+        if (null === $data || is_scalar($data)) {
+            return (string) $data;
+        }
+
+        $data = $this->normalize($data);
+        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
+            return json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+        }
+
+        return str_replace('\\/', '/', json_encode($data));
+    }
+}