BE: LangStrings /graphql + /logs endpoint, utils chores

Signed-off-by: jokob-sk <jokob.sk@gmail.com>

server/utils/crypto_utils.py

@@ -0,0 +1,66 @@
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import pad, unpad
+import base64
+import os
+import hashlib
+import uuid
+
+
+# SIMPLE CRYPT - requeres C compiler -------------------------------------------------------------------------
+
+# def prepare_key(encryption_key):
+#     if len(encryption_key) < 32:
+#         encryption_key = (encryption_key * ((32 // len(encryption_key)) + 1))[:32]
+#     return encryption_key
+
+# def encrypt_data(data, encryption_key):
+#     key = prepare_key(encryption_key)
+#     encrypted_data = encrypt(key, data)
+#     return encrypted_data
+
+# def decrypt_data(data, encryption_key):
+#     key = prepare_key(encryption_key)
+#     decrypted_data = decrypt(key, data).decode('utf-8')
+#     return decrypted_data
+
+# pycryptodome -------------------------------------------------------------------------
+
+def prepare_key(encryption_key):
+    key = hashlib.sha256(encryption_key.encode()).digest()
+    return key
+
+def encrypt_data(data, encryption_key):
+    key = prepare_key(encryption_key)
+    cipher = AES.new(key, AES.MODE_CBC)
+    ct_bytes = cipher.encrypt(pad(data.encode('utf-8'), AES.block_size))
+    iv = base64.b64encode(cipher.iv).decode('utf-8')
+    ct = base64.b64encode(ct_bytes).decode('utf-8')
+    return iv + ct
+
+def decrypt_data(data, encryption_key):
+    key = prepare_key(encryption_key)
+    iv = base64.b64decode(data[:24])
+    ct = base64.b64decode(data[24:])
+    cipher = AES.new(key, AES.MODE_CBC, iv)
+    pt = unpad(cipher.decrypt(ct), AES.block_size)
+    return pt.decode('utf-8')
+
+
+#-------------------------------------------------------------------------------
+def get_random_bytes(length):
+    # Generate random bytes
+    random_bytes = os.urandom(length)
+    
+    # Convert bytes to hexadecimal string
+    hex_string = random_bytes.hex()
+    
+    # Format hexadecimal string with hyphens
+    formatted_hex = '-'.join(hex_string[i:i+2] for i in range(0, len(hex_string), 2))
+    
+    return formatted_hex
+
+#-------------------------------------------------------------------------------
+def generate_deterministic_guid(plugin, primary_id, secondary_id):
+    """Generates a deterministic GUID based on plugin, primary ID, and secondary ID."""
+    data = f"{plugin}-{primary_id}-{secondary_id}".encode("utf-8")
+    return str(uuid.UUID(hashlib.md5(data).hexdigest()))