Update open_email.php

Dynamic Email File Path Detection in open_email.php:

Issue: Hardcoded file path to the D: drive for email files caused issues for users with different drive setups.
Fix: Introduced a function to dynamically check both C:/laragon/bin/sendmail/output/ and D:/laragon/bin/sendmail/output/ directories. The script now searches both paths and reads the email file from whichever path it finds the file.
Code Change:
Added function findEmailFile to check both potential paths.
Updated logic to call this function and fetch the email file dynamically.

Thanks to @martic for the spotlight on this issue

assets/inbox/open_email.php

@@ -1,21 +1,35 @@
 <?php
-	const EML_FILE_PATH = 'D:/laragon/bin/sendmail/output/';
-
-	if (isset($_GET['email'])) {
-		$emailFile = EML_FILE_PATH . basename($_GET['email']);
-		if (file_exists($emailFile)) {
-			$content = file_get_contents($emailFile);
-			if ($content === false) {
-				echo "Error reading email file.";
-			} else {
-				// Decode and display content as HTML
-				$decodedContent = htmlspecialchars_decode($content, ENT_QUOTES);
-				echo nl2br($decodedContent);
-			}
-		} else {
-			echo "Email not found.";
-		}
-	} else {
-		echo "No email specified.";
-	}
-?>
+// Define potential paths
+$emailFilePaths = [
+    'C:/laragon/bin/sendmail/output/',
+    'D:/laragon/bin/sendmail/output/',
+];
+
+function findEmailFile($filename, $paths)
+{
+    foreach ($paths as $path) {
+        $filePath = rtrim($path, '/') . '/' . basename($filename);
+        if (file_exists($filePath)) {
+            return $filePath;
+        }
+    }
+    return false;
+}
+
+if (isset($_GET['email'])) {
+    $emailFile = findEmailFile($_GET['email'], $emailFilePaths);
+    if ($emailFile) {
+        $content = file_get_contents($emailFile);
+        if ($content === false) {
+            echo "Error reading email file.";
+        } else {
+            // Decode and display content as HTML
+            $decodedContent = htmlspecialchars_decode($content, ENT_QUOTES);
+            echo nl2br($decodedContent);
+        }
+    } else {
+        echo "Email not found.";
+    }
+} else {
+    echo "No email specified.";
+}