Add boss schedule retrieval & parsing

services/boss_retrieval.py

@@ -0,0 +1,60 @@
+import subprocess
+import requests
+import oead
+import os
+from config import settings
+
+def process_boss_file():
+    temp_boss = "bosstemp.bin"
+    output_yaml = "boss.yaml"
+    decrypt_script = os.path.join("services", "decrypt.js")
+    
+    if not os.path.exists(decrypt_script):
+        print(f"{decrypt_script} is missing!")
+        return False
+
+    try:
+        boss_url = settings.boss_url
+        res = requests.get(boss_url, timeout=10)
+        res.raise_for_status()
+        
+        with open(temp_boss, "wb") as f:
+            f.write(res.content)
+
+        node_env = os.environ.copy()
+        node_env["BOSS_AES_KEY"] = settings.boss_aes_key
+        node_env["BOSS_HMAC_KEY"] = settings.boss_hmac_key
+
+        result = subprocess.run(
+            ['node', decrypt_script, temp_boss],
+            capture_output=True,
+            text=False,
+            env=node_env
+        )
+        
+        if result.returncode != 0:
+            print(f"decrypt fail! {result.stderr.decode()}")
+            return False
+
+        byml_obj = oead.byml.from_binary(result.stdout)
+        yaml_content = oead.byml.to_text(byml_obj)
+        
+        with open(output_yaml, "w", encoding="utf-8") as f:
+            f.write(yaml_content)
+            
+        print(f"yay! success: {output_yaml}")
+        return True
+
+    except Exception as e:
+        print(f"exception {e}")
+        return False
+
+    finally:
+        print("garbage pickup is running (boss)")
+        if os.path.exists(temp_boss):
+            os.remove(temp_boss)
+            print(f"Removed {temp_boss}")
+            
+        if os.path.exists("boss.byml"):
+            os.remove("boss.byml")
+            print("Removed boss.byml")

services/decrypt.js

@@ -0,0 +1,44 @@
+const fs = require('node:fs');
+const path = require('node:path');
+const crypto = require('node:crypto');
+
+const BOSS_AES_KEY = process.env.BOSS_AES_KEY;
+const BOSS_HMAC_KEY = process.env.BOSS_HMAC_KEY;
+
+async function run() {
+    try {
+        if (!BOSS_AES_KEY || !BOSS_HMAC_KEY) {
+            process.stderr.write("decrypt: missing environment keys\n");
+            process.exit(1);
+        }
+
+        const data = fs.readFileSync(process.argv[2]);
+
+        const IV = Buffer.concat([
+            data.subarray(0x0C, 0x18),
+            Buffer.from([0x00, 0x00, 0x00, 0x01])
+        ]);
+
+        const decipher = crypto.createDecipheriv('aes-128-ctr', Buffer.from(BOSS_AES_KEY, 'hex'), IV);
+        const decrypted = Buffer.concat([decipher.update(data.subarray(0x20)), decipher.final()]);
+
+        const hmac = decrypted.subarray(0, 0x20);
+        const content = decrypted.subarray(0x20);
+
+        const calculatedHmac = crypto.createHmac('sha256', Buffer.from(BOSS_HMAC_KEY, 'hex'))
+            .update(content)
+            .digest();
+
+        if (!calculatedHmac.equals(hmac)) {
+            process.stderr.write("Console HMAC check failed. Is the key correct?\n");
+            process.exit(1);
+        }
+
+        process.stdout.write(content);
+    } catch (err) {
+        process.stderr.write(`decrypt.js: ${err.message}\n`);
+        process.exit(1);
+    }
+}
+
+run();