2024-10-10

web/include/logger.php

@@ -0,0 +1,100 @@
+<?php
+class Logger
+{
+    private $user;
+    private $logfile;
+    private $datetime_format;
+    private $enabled;
+    private $pid_enabled;
+    private $user_enabled;
+    private $url_enabled;
+    private $url_host_enabled;
+    private $url_param_enabled;
+    private $trace_enabled;
+    private $trace_id;
+
+    public function __construct(
+        $user,
+        $logfile,
+        $datetime_format,
+        $enabled,
+        $pid_enabled,
+        $user_enabled,
+        $url_enabled,
+        $url_host_enabled,
+        $url_param_enabled,
+        $trace_enabled
+    ) {
+        $this->user = $user;
+        $this->logfile = $logfile;
+        $this->datetime_format = $datetime_format;
+        $this->enabled = $enabled;
+        $this->pid_enabled = $pid_enabled;
+        $this->user_enabled = $user_enabled;
+        $this->url_enabled = $url_enabled;
+        $this->url_host_enabled = $url_host_enabled;
+        $this->url_param_enabled = $url_param_enabled;
+        $this->trace_enabled = $trace_enabled;
+        if ($this->trace_enabled)
+            $this->trace_id = uniqid();
+    }
+
+    public function info($message = "", array $data = [])
+    {
+        $this->delegrate_logging("info", $message, $data);
+    }
+
+    public function warn($message = "", array $data = [])
+    {
+        $this->delegrate_logging("warn", $message, $data);
+    }
+
+    protected function delegrate_logging($level, $message = "", array $data = [])
+    {
+        if ($this->enabled) {
+            $this->logging($level, $message, $data);
+        }
+    }
+
+    public function logging($level, $message = "", array $data = [])
+    {
+        $datetime = new DateTime();
+        $datetime = $datetime->format($this->datetime_format);
+        $user = $this->user;
+        $trace_id = $this->trace_id;
+        $prefix = "$datetime $level ";
+        if ($this->pid_enabled) {
+            $pid = getmypid();
+            $prefix = $prefix . "$pid ";
+        }
+        if ($this->user_enabled)
+            $prefix = $prefix . "[$user] ";
+        if ($this->trace_enabled)
+            $prefix = $prefix . "[$trace_id] ";
+        if ($this->url_enabled) {
+            $script   = $_SERVER['SCRIPT_NAME'];
+            $url      =  $script;
+            if ($this->url_host_enabled) {
+                $protocol = strpos(strtolower($_SERVER['SERVER_PROTOCOL']), 'https') === FALSE ? 'http' : 'https';
+                $host     = $_SERVER['HTTP_HOST'];
+                $url      = $protocol . '://' . $host . $url;
+            }
+            if ($this->url_param_enabled) {
+                $params   = $_SERVER['QUERY_STRING'];
+                if (!empty($params))
+                    $url = $url . "?" . $params;
+            }
+            $prefix = $prefix . "$url ";
+        }
+        if (empty($message))
+            $message = $prefix;
+        else
+            $message = "$prefix --- $message";
+        foreach ($data as $key => $val)
+            $message = str_replace("%{$key}%", $val, $message);
+        $message .= PHP_EOL;
+        $handle = fopen($this->logfile, "a");
+        fwrite($handle, $message);
+        fclose($handle);
+    }
+}