mirror of
https://github.com/NohamR/pyzule-rw.git
synced 2026-10-10 18:39:41 +00:00
243 lines
7.0 KiB
Python
243 lines
7.0 KiB
Python
import os
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import sys
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import shutil
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import subprocess
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from typing import Optional
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try:
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import lief
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except Exception:
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pass
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from cyan import tbhutils
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class Executable:
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install_dir, specific = tbhutils.get_tools_dir()
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nt = f"{specific}/install_name_tool"
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ldid = f"{specific}/ldid"
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lipo = f"{specific}/lipo"
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otool = f"{specific}/otool"
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starters = ("\t/Library/", "\t@rpath", "\t@executable_path")
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def __init__(self, path: str, bundle_path: Optional[str] = None):
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if not os.path.isfile(path):
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sys.exit(f"[!] {path} does not exist (executable)")
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self.path = path
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self.bundle_path = bundle_path
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self.bn = os.path.basename(path)
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self.inj: Optional = None # type: ignore
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if self.specific.endswith("iOS"):
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self.inj_func = self.ios_inject
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else:
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self.inj_func = self.insert_cmd
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def is_encrypted(self) -> bool:
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proc = subprocess.run(
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[self.otool, "-l", self.path],
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capture_output=True
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)
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return b"cryptid 1" in proc.stdout
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def inject(self, tweaks: dict[str, str], tmpdir: str) -> None:
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# we only inject into the main executable
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assert self.bundle_path is not None
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has_entitlements = False
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ENT_PATH = f"{self.bundle_path}/cyan.entitlements"
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PLUGINS_DIR = f"{self.bundle_path}/PlugIns"
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FRAMEWORKS_DIR = f"{self.bundle_path}/Frameworks"
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with open(ENT_PATH, "wb") as entf:
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proc = subprocess.run(
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[self.ldid, "-e", self.path],
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capture_output=True
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)
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entf.write(proc.stdout)
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if os.path.getsize(ENT_PATH) > 0:
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has_entitlements = True
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# iirc, injecting doesnt work (sometimes) if the file isn't signed
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self.fakesign(False)
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if any(t.endswith(".appex") for t in tweaks):
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os.makedirs(PLUGINS_DIR, exist_ok=True)
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if any(
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t.endswith(k)
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for t in tweaks
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for k in (".deb", ".dylib", ".framework")
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):
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os.makedirs(FRAMEWORKS_DIR, exist_ok=True)
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# some apps really dont have this lol
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subprocess.run(
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[self.nt, "-add_rpath", "@executable_path/Frameworks", self.path],
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stderr=subprocess.DEVNULL
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)
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# need ~~two~~ THREE loops, one for copying all files to tmpdir
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print("[*] preparing; this may take a while, sorry")
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for bn, path in dict(tweaks).items():
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if bn.endswith(".deb"):
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tbhutils.extract_deb(path, tweaks, tmpdir)
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continue
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try:
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tweaks[bn] = shutil.copytree(path, f"{tmpdir}/{bn}")
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except NotADirectoryError:
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tweaks[bn] = shutil.copy2(path, tmpdir)
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# print(f"[*] prepared {bn}")
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needed: set[str] = set()
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common = {
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# substrate could show up as
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# CydiaSubstrate.framework, libsubstrate.dylib, CydiaSubstrate.dylib
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# and probably even more. it's crazy.
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"substrate.": "CydiaSubstrate.framework",
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"Orion.framework": "Orion.framework",
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"Cephei.framework": "Cephei.framework",
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"CepheiUI.framework": "CepheiUI.framework",
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"CepheiPrefs.framework": "CepheiPrefs.framework"
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}
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# another loop for fixing dylib dependencies
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for dbn, path in tweaks.items():
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if not dbn.endswith(".dylib"):
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continue
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dylib = Executable(path)
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dylib.fakesign()
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# fix dependencies
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for dep in dylib.get_dependencies():
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for cname in (tweaks | common):
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if cname in dep:
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# i wonder if there's a better way to do this?
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if cname.endswith(".framework"):
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npath = f"@rpath/{cname}/{cname[:-10]}"
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else:
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npath = f"@rpath/{cname}"
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if cname in common:
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needed.add(cname)
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if dep != npath:
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dylib.change_dependency(dep, npath)
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print(f"[*] fixed dependency in {dbn}: {dep} -> {npath}")
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# orion has a *weak* dependency to substrate,
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# but will still crash without it. nice !!!!!!!!!!!
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if "Orion.framework" in needed:
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needed.add("substrate.")
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for missing in needed:
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real = common[missing] # "real" name, thanks substrate!
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ip = f"{FRAMEWORKS_DIR}/{real}"
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existed = tbhutils.delete_if_exists(ip, real)
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shutil.copytree(f"{self.install_dir}/extras/{real}", ip)
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if not existed:
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print(f"[*] auto-injected {real}")
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# and FINALLY, one for actually injecting
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for bn, path in tweaks.items():
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if bn.endswith(".appex"):
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fpath = f"{PLUGINS_DIR}/{bn}"
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existed = tbhutils.delete_if_exists(fpath, bn)
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shutil.copytree(path, fpath)
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elif bn.endswith(".dylib"):
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fpath = f"{FRAMEWORKS_DIR}/{bn}"
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existed = tbhutils.delete_if_exists(fpath, bn)
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self.inj_func(f"@rpath/{bn}")
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shutil.copy2(path, FRAMEWORKS_DIR)
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elif bn.endswith(".framework"):
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fpath = f"{FRAMEWORKS_DIR}/{bn}"
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existed = tbhutils.delete_if_exists(fpath, bn)
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self.inj_func(f"@rpath/{bn}/{bn[:-10]}")
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shutil.copytree(path, fpath)
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else:
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fpath = f"{self.bundle_path}/{bn}"
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existed = tbhutils.delete_if_exists(fpath, bn)
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try:
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shutil.copytree(path, fpath)
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except NotADirectoryError:
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shutil.copy2(path, self.bundle_path)
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if not existed:
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print(f"[*] injected {bn}")
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# FINALLY !!
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if self.inj is not None: # type: ignore
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self.inj.write(self.path) # type: ignore
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if has_entitlements:
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subprocess.run(["ldid", f"-S{ENT_PATH}", self.path])
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print("[*] restored entitlements")
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def fakesign(self, keep_entitlements: bool = True) -> bool:
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cmd = [self.ldid, "-S"]
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if keep_entitlements:
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cmd.append("-M")
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subprocess.run(cmd + [self.path])
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return True
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def thin(self) -> bool:
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return subprocess.run(
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[self.lipo, "-thin", "arm64", self.path, "-output", self.path],
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stderr=subprocess.DEVNULL
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).returncode == 0
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def change_dependency(self, old: str, new: str) -> None:
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subprocess.run([self.nt, "-change", old, new, self.path])
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def insert_cmd(self, cmd: str) -> None:
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if self.inj is None: # type: ignore
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try:
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lief.logging.disable() # type: ignore
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except Exception:
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sys.exit("[!] did you forget to install lief?")
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self.inj = lief.parse(self.path) # type: ignore
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self.inj.add(lief.MachO.DylibCommand.weak_lib(cmd)) # type: ignore
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def ios_inject(self, cmd: str) -> None:
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subprocess.run(
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[
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f"{self.specific}/insert_dylib",
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"--weak", "--inplace", "--no-strip-codesig", "--all-yes",
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cmd, self.path
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], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL
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)
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def get_dependencies(self) -> list[str]:
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proc = subprocess.run(
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[self.otool, "-L", self.path],
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capture_output=True, text=True
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)
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# split at [2:] to avoid otool's line and dylib's id
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tmp = proc.stdout.strip().split("\n")[2:]
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for ind, dep in enumerate(tmp):
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if "(architecture " in dep: # avoid checking duplicate deps
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tmp = tmp[:ind]
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deps: list[str] = []
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for dep in tmp:
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if any(dep.startswith(s) for s in self.starters):
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deps.append(dep.split()[0]) # split() removes whitespace
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return deps
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