feat: change it into CLI

Dockerfile

@@ -0,0 +1,9 @@
+FROM php:8.0-cli
+
+WORKDIR /app
+
+COPY main.php .
+
+RUN apt-get update && apt-get install -y dnsutils
+
+CMD ["php", "main.php"]

README.md

@@ -1,2 +1,46 @@
 # MailSpoof
-Simple API to scans SPF, DMARC, DKIM records for issues that could allow email spoofing.
+MailSpoof is a simple program that scans SPF and DMARC records for issues that could allow email spoofing.
+
+## Getting Started
+
+Follow these steps to use the MailSpoof tool using Docker:
+
+### Prerequisites
+
+- Docker installed on your system
+
+### Usage
+
+1. Clone this repository:
+
+
+```
+git clone https://github.com/yourusername/YourRepositoryName.git
+cd YourRepositoryName
+```
+
+2. Build the Docker image:
+
+```
+docker build -t mailspoof .
+```
+
+3. Run the Docker container and specify the target URL (replace `<url>` with the actual URL):
+
+```
+docker run --rm mailspoof <url> [--output=json]
+```
+
+Replace `<url>` with the target URL you want to check. You can also include the `--output=json` flag if you want JSON output.
+
+4. Access the output:
+
+To access the output, copy the `output.txt` file from the container to your host system:
+
+```
+docker cp <container_id>:/app/output.txt ./output.txt
+```
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

index.php

@@ -1,35 +0,0 @@
-<?php
-$param = $_GET["spf"];
-$param2 = "_dmarc." . $_GET["dmarc"];
-if ($param) {
-    check($param,"v=spf1");
-}
-if ($param2) {
-    check($param2,"v=DMARC1");
-}
-
-function check($url, $string) {
-    $array = dns_get_record($url, DNS_ALL);
-    for ($i = 0; $i <= count($array) - 1; $i++) {
-        $nestedarray = $array[$i];
-        for ($j = 0; $j <= count($nestedarray) - 1; $j++) {
-            if (array_key_exists("txt", $nestedarray)) {
-                $str = $nestedarray['txt'];
-                $search = $string;
-                if (preg_match("/{$search}/i", $str)) {
-                    echo (prepareAPIResponse("success", $str, "found"));
-                    break;
-                }
-            }
-        }
-    }
-}
-
-function prepareAPIResponse($status='success', $data=null, $msg=null) {
-    header('content-type: application/json');
-    return json_encode([
-       'status'=>$status,
-       'data'=>$data,
-       'message'=>$msg
-    ]);
-}

main.php

@@ -0,0 +1,58 @@
+<?php
+if ($argc < 2) {
+    echo "Usage: php script.php <url> [--output=json]\n";
+    exit(1);
+}
+
+$url = $argv[1];
+$outputFormat = in_array('--output=json', $argv) ? 'json' : 'text';
+$results = [];
+
+check($url, "v=spf1");
+check("_dmarc." . $url, "v=DMARC1");
+
+if ($outputFormat === 'json') {
+    echo json_encode($results, JSON_PRETTY_PRINT) . PHP_EOL;
+} else {
+    displayTextOutput();
+}
+
+function check($url, $string) {
+    global $results;
+
+    $txtRecords = dns_get_record($url, DNS_TXT);
+    $status = "fail";
+    $data = "";
+
+    foreach ($txtRecords as $txtRecord) {
+        if (preg_match("/{$string}/i", $txtRecord['txt'])) {
+            $status = "success";
+            $data = $txtRecord['txt'];
+            break;
+        }
+    }
+
+    $recordType = ($string === "v=spf1") ? "SPF" : "DMARC";
+
+    $results[] = [
+        'type' => $recordType,
+        'status' => $status,
+        'data' => $data
+    ];
+}
+
+function displayTextOutput() {
+    global $results;
+
+    foreach ($results as $result) {
+        echo "{$result['type']} Records:\n";
+        
+        if ($result['type'] === 'DMARC' && $result['status'] === 'fail') {
+            echo "Not Found\n";
+        } else {
+            echo "{$result['data']}\n";
+        }
+        
+        echo "\n";
+    }
+}