Updated signing info in info command to match rustii's formatting

This change does not apply to TMDs or Tickets on their own.

.github/workflows/python-build.yaml

@@ -19,7 +19,9 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Install ccache for Nuitka
-      run: sudo apt update && sudo apt install -y ccache libicu70
+      run: |
+        sudo apt update && \
+        sudo apt install -y ccache patchelf
     - name: Set up Python 3.12
       uses: actions/setup-python@v5
       with:
@@ -36,7 +38,7 @@ jobs:
         cd ~
         tar cvf WiiPy.tar wiipy
     - name: Upload Application
-      uses: actions/upload-artifact@v4.3.0
+      uses: actions/upload-artifact@v4
       with:
         path: ~/WiiPy.tar
         name: WiiPy-Linux-bin
@@ -63,7 +65,7 @@ jobs:
           cd ~
           tar cvf WiiPy.tar wiipy
       - name: Upload Application
-        uses: actions/upload-artifact@v4.3.0
+        uses: actions/upload-artifact@v4
         with:
           path: ~/WiiPy.tar
           name: WiiPy-macOS-x86_64-bin
@@ -90,7 +92,7 @@ jobs:
           cd ~
           tar cvf WiiPy.tar wiipy
       - name: Upload Application
-        uses: actions/upload-artifact@v4.3.0
+        uses: actions/upload-artifact@v4
         with:
           path: ~/WiiPy.tar
           name: WiiPy-macOS-arm64-bin
@@ -114,7 +116,12 @@ jobs:
     - name: Build Application
       run: .\Build.ps1
     - name: Upload Application
-      uses: actions/upload-artifact@v4.3.0
+      uses: actions/upload-artifact@v4
+      with:
+        path: D:\a\WiiPy\WiiPy\WiiPy.dist
+        name: WiiPy-Windows-bin
+    - name: Upload Onefile Application
+      uses: actions/upload-artifact@v4
       with:
         path: D:\a\WiiPy\WiiPy\wiipy.exe
-        name: WiiPy-Windows-bin
+        name: WiiPy-Windows-onefile-bin

commands/archive/lz77.py

@@ -0,0 +1,41 @@
+# "commands/archive/lz77.py" from WiiPy by NinjaCheetah
+# https://github.com/NinjaCheetah/WiiPy
+
+import pathlib
+import libWiiPy
+from modules.core import fatal_error
+
+
+def handle_lz77_compress(args):
+    input_path = pathlib.Path(args.input)
+    if args.output is not None:
+        output_path = pathlib.Path(args.output)
+    else:
+        output_path = pathlib.Path(input_path.name + ".lz77")
+
+    if not input_path.exists():
+        fatal_error(f"The specified file \"{input_path}\" does not exist!")
+
+    lz77_data = input_path.read_bytes()
+    data = libWiiPy.archive.compress_lz77(lz77_data)
+    output_path.write_bytes(data)
+
+    print("LZ77 file compressed!")
+
+
+def handle_lz77_decompress(args):
+    input_path = pathlib.Path(args.input)
+    if args.output is not None:
+        output_path = pathlib.Path(args.output)
+    else:
+        output_path = pathlib.Path(input_path.name + ".out")
+
+    if not input_path.exists():
+        fatal_error(f"The specified file \"{input_path}\" does not exist!")
+
+    lz77_data = input_path.read_bytes()
+    data = libWiiPy.archive.decompress_lz77(lz77_data)
+    output_path.write_bytes(data)
+
+    print("LZ77 file decompressed!")
+

commands/archive/u8.py

@@ -26,8 +26,15 @@ def handle_u8_unpack(args):
 
     if not input_path.exists():
         fatal_error(f"The specified input file \"{input_path}\" does not exist!")
+
+    u8_data = input_path.read_bytes()
+    # U8 archives are sometimes compressed. In the event that the provided data is LZ77 data, assume it's a compressed
+    # U8 archive and decompress it before continuing. Standard checks will then catch it if it was something else.
+    if u8_data[0:4] == b'LZ77':
+        u8_data = libWiiPy.archive.decompress_lz77(u8_data)
+
     # Output path is deliberately not checked in any way because libWiiPy already has those checks, and it's easier
     # and cleaner to only have one component doing all the checks.
-    libWiiPy.archive.extract_u8(input_path.read_bytes(), str(output_path))
+    libWiiPy.archive.extract_u8(u8_data, str(output_path))
 
     print("U8 archive unpacked!")

commands/nand/emunand.py

@@ -118,7 +118,7 @@ def handle_emunand_info(args):
                 print(f"  {disc.upper()}")
         print("")
     if missing_ioses:
-        print(f"Some titles installed are missing their required IOS. These missing IOSes are marked with a * in the "
+        print(f"Some titles installed are missing their required IOS. These missing IOSes are marked with \"*\" in the "
               f"title list above. If these IOSes are not installed, the titles requiring them will not launch. The "
               f"IOSes required but not installed are:")
         for missing in missing_ioses:
@@ -156,7 +156,7 @@ def handle_emunand_install_missing(args):
     for title in installed_titles:
         tmd = emunand.get_title_tmd(title)
         if tmd.ios_tid.upper() not in installed_ioses:
-            if tmd.ios_tid not in missing:
+            if int(tmd.ios_tid[8:], 16) not in missing:
                 missing.append(int(tmd.ios_tid[8:], 16))
     missing.sort()
     if is_vwii:

commands/title/info.py

@@ -8,7 +8,7 @@ import libWiiPy
 from modules.core import fatal_error
 
 
-def _print_tmd_info(tmd: libWiiPy.title.TMD):
+def _print_tmd_info(tmd: libWiiPy.title.TMD, signing_cert=None):
     # Get all important keys from the TMD and print them out nicely.
     print("Title Info")
     ascii_tid = ""
@@ -43,6 +43,9 @@ def _print_tmd_info(tmd: libWiiPy.title.TMD):
     elif tmd.signature_issuer.find("CP00000007") != -1:
         print(f"  Certificate: CP00000007 (Development)")
         print(f"  Certificate Issuer: Root-CA00000002 (Development)")
+    elif tmd.signature_issuer.find("CP00000005") != -1:
+        print(f"  Certificate: CP00000005 (Development/Unknown)")
+        print(f"  Certificate Issuer: Root-CA00000002 (Development)")
     elif tmd.signature_issuer.find("CP10000000") != -1:
         print(f"  Certificate: CP10000000 (Arcade)")
         print(f"  Certificate Issuer: Root-CA10000000 (Arcade)")
@@ -69,7 +72,22 @@ def _print_tmd_info(tmd: libWiiPy.title.TMD):
     print(f"  vWii Title: {bool(tmd.vwii)}")
     print(f"  DVD Video Access: {tmd.get_access_right(tmd.AccessFlags.DVD_VIDEO)}")
     print(f"  AHB Access: {tmd.get_access_right(tmd.AccessFlags.AHB)}")
-    print(f"  Fakesigned: {tmd.get_is_fakesigned()}")
+    if signing_cert is not None:
+        try:
+            if libWiiPy.title.verify_tmd_sig(signing_cert, tmd):
+                signing_str = "Valid (Unmodified TMD)"
+            elif tmd.get_is_fakesigned():
+                signing_str = "Fakesigned"
+            else:
+                signing_str = "Invalid (Modified TMD)"
+        except ValueError:
+            if tmd.get_is_fakesigned():
+                signing_str = "Fakesigned"
+            else:
+                signing_str = "Invalid (Modified TMD)"
+        print(f"  Signature: {signing_str}")
+    else:
+        print(f"  Fakesigned: {tmd.get_is_fakesigned()}")
     # Iterate over the content and print their details.
     print("\nContent Info")
     print(f"  Total Contents: {tmd.num_contents}")
@@ -83,7 +101,7 @@ def _print_tmd_info(tmd: libWiiPy.title.TMD):
         print(f"      Content Hash: {content.content_hash.decode()}")
 
 
-def _print_ticket_info(ticket: libWiiPy.title.Ticket):
+def _print_ticket_info(ticket: libWiiPy.title.Ticket, signing_cert=None):
     # Get all important keys from the TMD and print them out nicely.
     print(f"Ticket Info")
     ascii_tid = ""
@@ -112,6 +130,9 @@ def _print_ticket_info(ticket: libWiiPy.title.Ticket):
     elif ticket.signature_issuer.find("XS00000006") != -1:
         print(f"  Certificate: XS00000006 (Development)")
         print(f"  Certificate Issuer: Root-CA00000002 (Development)")
+    elif ticket.signature_issuer.find("XS00000004") != -1:
+        print(f"  Certificate: XS00000004 (Development/Unknown)")
+        print(f"  Certificate Issuer: Root-CA00000002 (Development)")
     else:
         print(f"  Certificate Info: {ticket.signature_issuer} (Unknown)")
     match ticket.common_key_index:
@@ -129,6 +150,22 @@ def _print_ticket_info(ticket: libWiiPy.title.Ticket):
     print(f"  Decryption Key: {key}")
     print(f"  Title Key (Encrypted): {binascii.hexlify(ticket.title_key_enc).decode()}")
     print(f"  Title Key (Decrypted): {binascii.hexlify(ticket.get_title_key()).decode()}")
+    if signing_cert is not None:
+        try:
+            if libWiiPy.title.verify_ticket_sig(signing_cert, ticket):
+                signing_str = "Valid (Unmodified Ticket)"
+            elif ticket.get_is_fakesigned():
+                signing_str = "Fakesigned"
+            else:
+                signing_str = "Invalid (Modified Ticket)"
+        except ValueError:
+            if ticket.get_is_fakesigned():
+                signing_str = "Fakesigned"
+            else:
+                signing_str = "Invalid (Modified Ticket)"
+        print(f"  Signature: {signing_str}")
+    else:
+        print(f"  Fakesigned: {ticket.get_is_fakesigned()}")
 
 
 def _print_wad_info(title: libWiiPy.title.Title):
@@ -163,10 +200,30 @@ def _print_wad_info(title: libWiiPy.title.Title):
         print(f"  Installed Size (MB): {min_size}-{max_size} MB")
     print(f"  Has Meta/Footer: {bool(title.wad.wad_meta_size)}")
     print(f"  Has CRL: {bool(title.wad.wad_crl_size)}")
+    tmd_cert = None
+    ticket_cert = None
+    try:
+        tmd_cert = title.cert_chain.tmd_cert
+        ticket_cert = title.cert_chain.ticket_cert
+        if title.get_is_signed():
+            signing_str = "Legitimate (Unmodified TMD + Ticket)"
+        elif title.get_is_fakesigned():
+            signing_str = "Fakesigned"
+        elif (libWiiPy.title.verify_tmd_sig(tmd_cert, title.tmd)
+            and not libWiiPy.title.verify_ticket_sig(ticket_cert, title.ticket)):
+            signing_str = "Piratelegit (Unmodified TMD, Modified Ticket)"
+        elif (not libWiiPy.title.verify_tmd_sig(tmd_cert, title.tmd)
+              and libWiiPy.title.verify_ticket_sig(ticket_cert, title.ticket)):
+            signing_str = "Edited (Modified TMD, Unmodified Ticket)"
+        else:
+            signing_str = "Illegitimate (Modified TMD + Ticket)"
+    except ValueError:
+        signing_str = "Illegitimate (Modified TMD + Ticket)"
+    print(f"  Signing Status: {signing_str}")
     print("")
-    _print_ticket_info(title.ticket)
+    _print_ticket_info(title.ticket, ticket_cert)
     print("")
-    _print_tmd_info(title.tmd)
+    _print_tmd_info(title.tmd, tmd_cert)
 
 
 def handle_info(args):

commands/title/nus.py

@@ -8,119 +8,6 @@ import libWiiPy
 from modules.core import fatal_error
 
 
-def handle_nus_title(args):
-    title_version = None
-    wad_file = None
-    output_dir = None
-    can_decrypt = False
-    tid = args.tid
-    if args.wii:
-        wiiu_nus_enabled = False
-    else:
-        wiiu_nus_enabled = True
-
-    # Check if --version was passed, because it'll be None if it wasn't.
-    if args.version is not None:
-        try:
-            title_version = int(args.version)
-        except ValueError:
-            fatal_error("The specified Title Version must be a valid integer!")
-
-    # If --wad was passed, check to make sure the path is okay.
-    if args.wad is not None:
-        wad_file = pathlib.Path(args.wad)
-        if wad_file.suffix != ".wad":
-            wad_file = wad_file.with_suffix(".wad")
-
-    # If --output was passed, make sure the directory either doesn't exist or is empty.
-    if args.output is not None:
-        output_dir = pathlib.Path(args.output)
-        if output_dir.exists():
-            if output_dir.is_file():
-                fatal_error("A file already exists with the provided directory name!")
-        else:
-            output_dir.mkdir()
-
-    # Download the title from the NUS. This is done "manually" (as opposed to using download_title()) so that we can
-    # provide verbose output.
-    title = libWiiPy.title.Title()
-
-    # Announce the title being downloaded, and the version if applicable.
-    if title_version is not None:
-        print(f"Downloading title {tid} v{title_version}, please wait...")
-    else:
-        print(f"Downloading title {tid} vLatest, please wait...")
-    print(" - Downloading and parsing TMD...")
-    # Download a specific TMD version if a version was specified, otherwise just download the latest TMD.
-    if title_version is not None:
-        title.load_tmd(libWiiPy.title.download_tmd(tid, title_version, wiiu_endpoint=wiiu_nus_enabled))
-    else:
-        title.load_tmd(libWiiPy.title.download_tmd(tid, wiiu_endpoint=wiiu_nus_enabled))
-        title_version = title.tmd.title_version
-    # Write out the TMD to a file.
-    if output_dir is not None:
-        output_dir.joinpath(f"tmd.{title_version}").write_bytes(title.tmd.dump())
-
-    # Download the ticket, if we can.
-    print(" - Downloading and parsing Ticket...")
-    try:
-        title.load_ticket(libWiiPy.title.download_ticket(tid, wiiu_endpoint=wiiu_nus_enabled))
-        can_decrypt = True
-        if output_dir is not None:
-            output_dir.joinpath("tik").write_bytes(title.ticket.dump())
-    except ValueError:
-        # If libWiiPy returns an error, then no ticket is available. Log this, and disable options requiring a
-        # ticket so that they aren't attempted later.
-        print("  - No Ticket is available!")
-        if wad_file is not None and output_dir is None:
-            fatal_error("--wad was passed, but this title has no common ticket and cannot be packed into a WAD!")
-
-    # Load the content records from the TMD, and begin iterating over the records.
-    title.load_content_records()
-    content_list = []
-    for content in range(len(title.tmd.content_records)):
-        # Generate the content file name by converting the Content ID to hex and then removing the 0x.
-        content_file_name = hex(title.tmd.content_records[content].content_id)[2:]
-        while len(content_file_name) < 8:
-            content_file_name = "0" + content_file_name
-        print(f" - Downloading content {content + 1} of {len(title.tmd.content_records)} "
-              f"(Content ID: {title.tmd.content_records[content].content_id}, "
-              f"Size: {title.tmd.content_records[content].content_size} bytes)...")
-        content_list.append(libWiiPy.title.download_content(tid, title.tmd.content_records[content].content_id,
-                                                            wiiu_endpoint=wiiu_nus_enabled))
-        print("   - Done!")
-        # If we're supposed to be outputting to a folder, then write these files out.
-        if output_dir is not None:
-            output_dir.joinpath(content_file_name).write_bytes(content_list[content])
-    title.content.content_list = content_list
-
-    # Try to decrypt the contents for this title if a ticket was available.
-    if output_dir is not None:
-        if can_decrypt is True:
-            for content in range(len(title.tmd.content_records)):
-                print(f" - Decrypting content {content + 1} of {len(title.tmd.content_records)} "
-                      f"(Content ID: {title.tmd.content_records[content].content_id})...")
-                dec_content = title.get_content_by_index(content)
-                content_file_name = f"{title.tmd.content_records[content].content_id:08X}".lower() + ".app"
-                output_dir.joinpath(content_file_name).write_bytes(dec_content)
-        else:
-            print("Title has no Ticket, so content will not be decrypted!")
-
-    # If --wad was passed, pack a WAD and output that.
-    if wad_file is not None:
-        # Get the WAD certificate chain.
-        print(" - Building certificate...")
-        title.load_cert_chain(libWiiPy.title.download_cert_chain(wiiu_endpoint=wiiu_nus_enabled))
-        # Ensure that the path ends in .wad, and add that if it doesn't.
-        print("Packing WAD...")
-        if wad_file.suffix != ".wad":
-            wad_file = wad_file.with_suffix(".wad")
-        # Have libWiiPy dump the WAD, and write that data out.
-        pathlib.Path(wad_file).write_bytes(title.dump_wad())
-
-    print(f"Downloaded title with Title ID \"{args.tid}\"!")
-
-
 def handle_nus_content(args):
     tid = args.tid
     cid = args.cid
@@ -198,6 +85,122 @@ def handle_nus_content(args):
     print(f"Downloaded content with Content ID \"{cid}\"!")
 
 
+def handle_nus_title(args):
+    title_version = None
+    wad_file = None
+    output_dir = None
+    can_decrypt = False
+    tid = args.tid
+    wiiu_nus_enabled = False if args.wii else True
+    endpoint_override = args.endpoint if args.endpoint else None
+
+    # Check if --version was passed, because it'll be None if it wasn't.
+    if args.version is not None:
+        try:
+            title_version = int(args.version)
+        except ValueError:
+            fatal_error("The specified Title Version must be a valid integer!")
+
+    # If --wad was passed, check to make sure the path is okay.
+    if args.wad is not None:
+        wad_file = pathlib.Path(args.wad)
+        if wad_file.suffix != ".wad":
+            wad_file = wad_file.with_suffix(".wad")
+
+    # If --output was passed, make sure the directory either doesn't exist or is empty.
+    if args.output is not None:
+        output_dir = pathlib.Path(args.output)
+        if output_dir.exists():
+            if output_dir.is_file():
+                fatal_error("A file already exists with the provided directory name!")
+        else:
+            output_dir.mkdir()
+
+    # Download the title from the NUS. This is done "manually" (as opposed to using download_title()) so that we can
+    # provide verbose output.
+    title = libWiiPy.title.Title()
+
+    # Announce the title being downloaded, and the version if applicable.
+    if title_version is not None:
+        print(f"Downloading title {tid} v{title_version}, please wait...")
+    else:
+        print(f"Downloading title {tid} vLatest, please wait...")
+    print(" - Downloading and parsing TMD...")
+    # Download a specific TMD version if a version was specified, otherwise just download the latest TMD.
+    if title_version is not None:
+        title.load_tmd(libWiiPy.title.download_tmd(tid, title_version, wiiu_endpoint=wiiu_nus_enabled,
+                                                   endpoint_override=endpoint_override))
+    else:
+        title.load_tmd(libWiiPy.title.download_tmd(tid, wiiu_endpoint=wiiu_nus_enabled,
+                                                   endpoint_override=endpoint_override))
+        title_version = title.tmd.title_version
+    # Write out the TMD to a file.
+    if output_dir is not None:
+        output_dir.joinpath(f"tmd.{title_version}").write_bytes(title.tmd.dump())
+
+    # Download the ticket, if we can.
+    print(" - Downloading and parsing Ticket...")
+    try:
+        title.load_ticket(libWiiPy.title.download_ticket(tid, wiiu_endpoint=wiiu_nus_enabled,
+                                                         endpoint_override=endpoint_override))
+        can_decrypt = True
+        if output_dir is not None:
+            output_dir.joinpath("tik").write_bytes(title.ticket.dump())
+    except ValueError:
+        # If libWiiPy returns an error, then no ticket is available. Log this, and disable options requiring a
+        # ticket so that they aren't attempted later.
+        print("  - No Ticket is available!")
+        if wad_file is not None and output_dir is None:
+            fatal_error("--wad was passed, but this title has no common ticket and cannot be packed into a WAD!")
+
+    # Load the content records from the TMD, and begin iterating over the records.
+    title.load_content_records()
+    content_list = []
+    for content in range(len(title.tmd.content_records)):
+        # Generate the content file name by converting the Content ID to hex and then removing the 0x.
+        content_file_name = hex(title.tmd.content_records[content].content_id)[2:]
+        while len(content_file_name) < 8:
+            content_file_name = "0" + content_file_name
+        print(f" - Downloading content {content + 1} of {len(title.tmd.content_records)} "
+              f"(Content ID: {title.tmd.content_records[content].content_id}, "
+              f"Size: {title.tmd.content_records[content].content_size} bytes)...")
+        content_list.append(libWiiPy.title.download_content(tid, title.tmd.content_records[content].content_id,
+                                                            wiiu_endpoint=wiiu_nus_enabled,
+                                                            endpoint_override=endpoint_override))
+        print("   - Done!")
+        # If we're supposed to be outputting to a folder, then write these files out.
+        if output_dir is not None:
+            output_dir.joinpath(content_file_name).write_bytes(content_list[content])
+    title.content.content_list = content_list
+
+    # Try to decrypt the contents for this title if a ticket was available.
+    if output_dir is not None:
+        if can_decrypt is True:
+            for content in range(len(title.tmd.content_records)):
+                print(f" - Decrypting content {content + 1} of {len(title.tmd.content_records)} "
+                      f"(Content ID: {title.tmd.content_records[content].content_id})...")
+                dec_content = title.get_content_by_index(content)
+                content_file_name = f"{title.tmd.content_records[content].content_id:08X}".lower() + ".app"
+                output_dir.joinpath(content_file_name).write_bytes(dec_content)
+        else:
+            print("Title has no Ticket, so content will not be decrypted!")
+
+    # If --wad was passed, pack a WAD and output that.
+    if wad_file is not None:
+        # Get the WAD certificate chain.
+        print(" - Building certificate...")
+        title.load_cert_chain(libWiiPy.title.download_cert_chain(wiiu_endpoint=wiiu_nus_enabled,
+                                                                 endpoint_override=endpoint_override))
+        # Ensure that the path ends in .wad, and add that if it doesn't.
+        print("Packing WAD...")
+        if wad_file.suffix != ".wad":
+            wad_file = wad_file.with_suffix(".wad")
+        # Have libWiiPy dump the WAD, and write that data out.
+        pathlib.Path(wad_file).write_bytes(title.dump_wad())
+
+    print(f"Downloaded title with Title ID \"{args.tid}\"!")
+
+
 def handle_nus_tmd(args):
     tid = args.tid
 

commands/title/wad.py

@@ -81,7 +81,6 @@ def handle_wad_convert(args):
     else:
         fatal_error("No valid encryption target was specified!")
 
-    output_path = pathlib.Path(args.output)
     if args.output is None:
         match target:
             case "development":
@@ -92,6 +91,8 @@ def handle_wad_convert(args):
                 output_path = pathlib.Path(input_path.stem + "_vWii" + input_path.suffix)
             case _:
                 fatal_error("No valid encryption target was specified!")
+    else:
+        output_path = pathlib.Path(args.output)
 
     if not input_path.exists():
         fatal_error(f"The specified WAD file \"{input_path}\" does not exist!")
@@ -253,7 +254,7 @@ def handle_wad_pack(args):
     title = libWiiPy.title.Title()
     title.load_tmd(tmd_file.read_bytes())
     title.load_ticket(ticket_file.read_bytes())
-    title.wad.set_cert_data(cert_file.read_bytes())
+    title.load_cert_chain(cert_file.read_bytes())
     # Footers are not super common and are not required, so we don't care about one existing until we get to
     # the step where we'd pack it.
     footer_file = pathlib.Path(list(input_path.glob("*.[fF][oO][oO][tT][eE][rR]"))[0])

wiipy.py

@@ -5,6 +5,7 @@ import argparse
 from importlib.metadata import version
 
 from commands.archive.ash import *
+from commands.archive.lz77 import *
 from commands.archive.theme import *
 from commands.archive.u8 import *
 from commands.nand.emunand import *
@@ -30,7 +31,7 @@ if __name__ == "__main__":
     # Argument parser for the ASH subcommand.
     ash_parser = subparsers.add_parser("ash", help="compress/decompress an ASH file",
                                        description="compress/decompress an ASH file")
-    ash_subparsers = ash_parser.add_subparsers(title="emunand", dest="emunand", required=True)
+    ash_subparsers = ash_parser.add_subparsers(title="ash", dest="ash", required=True)
     # ASH compress parser.
     ash_compress_parser = ash_subparsers.add_parser("compress", help="compress a file into an ASH file",
                                                     description="compress a file into an ASH file; by default, this "
@@ -146,6 +147,28 @@ if __name__ == "__main__":
     iospatch_parser.add_argument("-ns", "--no-shared", action="store_true",
                                  help="set all patched content to be non-shared")
 
+    # Argument parser for the LZ77 subcommand.
+    lz77_parser = subparsers.add_parser("lz77", help="compress/decompress data using LZ77 compression",
+                                        description="compress/decompress data using LZ77 compression")
+    lz77_subparsers = lz77_parser.add_subparsers(title="lz77", dest="lz77", required=True)
+    # LZ77 compress parser.
+    lz77_compress_parser = lz77_subparsers.add_parser("compress", help="compress a file with LZ77 compression",
+                                                    description="compress a file with LZ77 compression; by default, "
+                                                                "this will output to <input file>.lz77")
+    lz77_compress_parser.set_defaults(func=handle_lz77_compress)
+    lz77_compress_parser.add_argument("input", metavar="IN", type=str, help="file to compress")
+    lz77_compress_parser.add_argument("-o", "--output", metavar="OUT", type=str,
+                                      help="file to output the compressed data to (optional)")
+    # LZ77 decompress parser.
+    lz77_decompress_parser = lz77_subparsers.add_parser("decompress", help="decompress an LZ77-compressed file",
+                                                        description="decompress an LZ77-compressed file; by default, "
+                                                                    "this will output to <input file>.out")
+    lz77_decompress_parser.set_defaults(func=handle_lz77_decompress)
+    lz77_decompress_parser.add_argument("input", metavar="IN", type=str,
+                                        help="LZ77-compressed file to decompress")
+    lz77_decompress_parser.add_argument("-o", "--output", metavar="OUT", type=str,
+                                        help="file to output the decompressed data to (optional)")
+
     # Argument parser for the NUS subcommand.
     nus_parser = subparsers.add_parser("nus", help="download data from the NUS",
                                        description="download from the NUS")
@@ -163,8 +186,10 @@ if __name__ == "__main__":
                                      help="download the title to a folder")
     nus_title_out_group.add_argument("-w", "--wad", metavar="WAD", type=str,
                                      help="pack a wad with the provided name")
-    nus_title_parser.add_argument("--wii", help="use original Wii NUS instead of the Wii U servers",
+    nus_title_parser.add_argument("--wii", help="use the original Wii NUS endpoint instead of the Wii U endpoint",
                                   action="store_true")
+    nus_title_parser.add_argument("-e", "--endpoint", metavar="ENDPOINT", type=str,
+                                  help="use the specified NUS endpoint instead of the official one")
     # Content NUS subcommand.
     nus_content_parser = nus_subparsers.add_parser("content", help="download a specific content from the NUS",
                                                    description="download a specific content from the NUS")