From b1ca58bd1ad5cf99dc213e0c3a9b793e99b92a42 Mon Sep 17 00:00:00 2001
From: Matthias Guillitte <matthias@guillitte.com>
Date: Wed, 3 Dec 2025 15:51:04 +0100
Subject: [PATCH] ExternalApp : Premier jet

# Conflicts:
#	src/main/java/externalApp/externalApp/src/Main.java
---
 .../java/common/common/src/ports/Ports.java   |  9 +++
 .../externalApp/externalApp/src/Main.java     | 70 ++++++++++++++++++-
 2 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/common/common/src/ports/Ports.java

diff --git a/src/main/java/common/common/src/ports/Ports.java b/src/main/java/common/common/src/ports/Ports.java
new file mode 100644
index 0000000..896e47f
--- /dev/null
+++ b/src/main/java/common/common/src/ports/Ports.java
@@ -0,0 +1,9 @@
+package common.common.src.ports;
+
+public class Ports {
+    /**
+     * Port d'écoute du service ACS pour la communication avec l'application externe.
+     */
+    public static int PORT_AUTH = 8786;
+    public static String ACS_HOST = "127.0.0.1";
+}
diff --git a/src/main/java/externalApp/externalApp/src/Main.java b/src/main/java/externalApp/externalApp/src/Main.java
index 749d097..aa907b7 100644
--- a/src/main/java/externalApp/externalApp/src/Main.java
+++ b/src/main/java/externalApp/externalApp/src/Main.java
@@ -1,9 +1,75 @@
 package externalApp.externalApp.src;
 
+import common.common.src.ports.Ports;
 import common.common.src.logger.Logger;
+import org.gradle.internal.impldep.com.fasterxml.jackson.databind.ObjectMapper;
+import org.gradle.internal.impldep.com.fasterxml.jackson.databind.node.ObjectNode;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.*;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.security.*;
+import java.security.cert.CertificateException;
+import java.util.Base64;
 
 public class Main {
-    public static void main(String[] args) {
-        Logger.displayInfo("Hello World");
+    public static void main(String[] args) throws IOException, KeyStoreException, UnrecoverableKeyException, NoSuchAlgorithmException, InvalidKeyException, SignatureException, URISyntaxException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        System.out.println("Quel est la date d'expiration de la carte de crédit ? (MM/AA)");
+        String expirationDate = br.readLine();
+        Logger.displayInfo("Date d'expiration saisie : " + expirationDate);
+        System.out.println("Numéro de la carte de crédit : ");
+        String cardNumber = br.readLine();
+        Logger.displayInfo("Numéro de carte saisi : " + cardNumber);
+
+        // Construction du JSON
+        ObjectMapper mapper = new ObjectMapper();
+        ObjectNode json = mapper.createObjectNode();
+        json.put("expirationDate", expirationDate);
+        json.put("cardNumber", cardNumber);
+        String jsonString = mapper.writeValueAsString(json);
+
+        // Signer le JSON
+        KeyStore keyStore = KeyStore.getInstance("PKCS12");
+        char[] password = /* TODO */.toCharArray();
+        try (FileInputStream pkFile = new FileInputStream("ma_cle.p12")) {
+            keyStore.load(pkFile, password);
+        } catch (CertificateException | NoSuchAlgorithmException e) {
+            throw new RuntimeException(e);
+        }
+        PrivateKey privateKey = (PrivateKey) keyStore.getKey(/* TODO */, password);
+        Signature signature = Signature.getInstance("SHA256withRSA");
+        signature.initSign(privateKey);
+        signature.update(jsonString.getBytes(StandardCharsets.UTF_8));
+        byte[] signedBytes = signature.sign();
+
+        String signatureBase64 = Base64.getEncoder().encodeToString(signedBytes);
+
+        // Construction du JSON final avec la signature
+        ObjectNode finalJson = mapper.createObjectNode();
+        finalJson.put("data", jsonString);
+        finalJson.put("signature", signatureBase64);
+
+        String finalPayload = mapper.writeValueAsString(finalJson);
+
+        // Envoi à l'ACS
+        Logger.displayInfo("Envoi des informations au service d'authentification sur le port " + Ports.PORT_AUTH + " à l'hôte " + Ports.ACS_HOST);
+        URL url = new URI("https://" + Ports.ACS_HOST + ":" + Ports.PORT_AUTH).toURL();
+        HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
+
+        con.setRequestMethod("POST");
+        con.setRequestProperty("Content-Type", "application/json");
+        con.setDoOutput(true);
+
+        try (OutputStream os = con.getOutputStream()) {
+            os.write(finalPayload.getBytes(StandardCharsets.UTF_8));
+            Logger.displaySent("Payload final envoyé : " + finalPayload);
+        }
+
+        int responseCode = con.getResponseCode();
+        Logger.displayReceived("Code de réponse reçu : " + responseCode);
     }
 }