Created title.py to handle titles as a whole and allow for changing parts of them more easily

src/libWiiPy/__init__.py

@@ -1,7 +1,9 @@
 # "__init__.py" from libWiiPy by NinjaCheetah & Contributors
 # https://github.com/NinjaCheetah/libWiiPy
 
-from .wad import *
-from .tmd import *
-from .ticket import *
+from .commonkeys import *
 from .content import *
+from .ticket import *
+from .title import *
+from .tmd import *
+from .wad import *

src/libWiiPy/ticket.py

@@ -4,6 +4,7 @@
 # See https://wiibrew.org/wiki/Ticket for details about the ticket format
 
 import io
+import binascii
 from .crypto import decrypt_title_key
 from dataclasses import dataclass
 from typing import List
@@ -66,6 +67,7 @@ class Ticket:
         self.ticket_id: bytes  # Used as the IV when decrypting the title key for console-specific title installs.
         self.console_id: int  # ID of the console that the ticket was issued for.
         self.title_id: bytes  # TID/IV used for AES-CBC encryption.
+        self.title_id_str: str  # TID in string form for comparing against the TMD.
         self.title_version: int  # Version of the ticket's associated title.
         self.permitted_titles: bytes  # Permitted titles mask
         self.permit_mask: bytes  # "Permit mask. The current disc title is ANDed with the inverse of this mask to see if the result matches the Permitted Titles Mask."
@@ -106,6 +108,9 @@ class Ticket:
             # Title ID
             ticket_data.seek(0x1DC)
             self.title_id = ticket_data.read(8)
+            # Title ID (as a string)
+            title_id_hex = binascii.hexlify(self.title_id)
+            self.title_id_str = str(title_id_hex.decode())
             # Title version
             ticket_data.seek(0x1E6)
             title_version_high = int.from_bytes(ticket_data.read(1)) * 256
@@ -175,3 +180,16 @@ class Ticket:
         """
         title_key = decrypt_title_key(self.title_key_enc, self.common_key_index, self.title_id)
         return title_key
+
+    def set_title_id(self, title_id):
+        """Sets the Title ID of the title in the Ticket.
+
+        Parameters
+        ----------
+        title_id : str
+            The new Title ID of the title.
+        """
+        if len(title_id) != 16:
+            raise ValueError("Invalid Title ID! Title IDs must be 8 bytes long.")
+        self.title_id_str = title_id
+        self.title_id = binascii.unhexlify(title_id)

src/libWiiPy/title.py

@@ -0,0 +1,58 @@
+# "title.py" from libWiiPy by NinjaCheetah & Contributors
+# https://github.com/NinjaCheetah/libWiiPy
+#
+# See https://wiibrew.org/wiki/Title for details about how titles are formatted
+
+from .content import ContentRegion
+from .ticket import Ticket
+from .tmd import TMD
+from .wad import WAD
+
+
+class Title:
+    """Creates a Title object that contains all components of a title, and allows altering them.
+
+    Parameters
+    ----------
+    wad : WAD
+        A WAD object to load data from.
+
+    Attributes
+    ----------
+    tmd : TMD
+        A TMD object of the title's TMD.
+    ticket : Ticket
+        A Ticket object of the title's Ticket.
+    content: ContentRegion
+        A ContentRegion object containing the title's contents.
+    """
+    def __init__(self, wad: WAD):
+        self.wad = wad
+        self.tmd: TMD
+        self.ticket: Ticket
+        self.content: ContentRegion
+        # Load data from the WAD object, and generate all other objects from the data in it.
+        # Load the TMD.
+        self.tmd = TMD(self.wad.get_tmd_data())
+        # Load the ticket.
+        self.ticket = Ticket(self.wad.get_ticket_data())
+        # Load the content.
+        self.content = ContentRegion(self.wad.get_content_data(), self.tmd.content_records)
+        # Ensure that the Title IDs of the TMD and Ticket match before doing anything else. If they don't, throw an
+        # error because clearly something strange has gone on with the WAD and editing it probably won't work.
+        if self.tmd.title_id != self.ticket.title_id_str:
+            raise ValueError("The Title IDs of the TMD and Ticket in this WAD do not match. This WAD appears to be "
+                             "invalid.")
+
+    def set_title_id(self, title_id: str):
+        """Sets the Title ID of the title in both the TMD and Ticket.
+
+        Parameters
+        ----------
+        title_id : str
+            The new Title ID of the title.
+        """
+        if len(title_id) != 16:
+            raise ValueError("Invalid Title ID! Title IDs must be 8 bytes long.")
+        self.tmd.set_title_id(title_id)
+        self.ticket.set_title_id(title_id)

src/libWiiPy/tmd.py

@@ -235,3 +235,15 @@ class TMD:
         else:
             raise IndexError("Invalid content record! TMD lists '" + str(self.num_contents - 1) +
                              "' contents but index was '" + str(record) + "'!")
+
+    def set_title_id(self, title_id):
+        """Sets the Title ID of the title in the ticket.
+
+        Parameters
+        ----------
+        title_id : str
+            The new Title ID of the title.
+        """
+        if len(title_id) != 16:
+            raise ValueError("Invalid Title ID! Title IDs must be 8 bytes long.")
+        self.title_id = title_id

src/libWiiPy/wad.py

@@ -47,7 +47,7 @@ class WAD:
             wad_magic = str(wad_magic_hex.decode())
             if wad_magic != "0000002049730000":
                 raise TypeError("This does not appear to be a valid WAD file, or is a boot2 WAD, which is not currently"
-                                "supported by this library.")
+                                " supported by this library.")
             # ====================================================================================
             # Get the sizes of each data region contained within the WAD.
             # ====================================================================================