mirror of
https://github.com/NohamR/pyzule-rw.git
synced 2026-10-10 18:39:41 +00:00
154 lines
4.3 KiB
Python
154 lines
4.3 KiB
Python
import os
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import sys
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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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idylib = f"{specific}/insert_dylib"
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starters = ("\t/Library/", "\t@rpath", "\t@executable_path")
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common = {
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# substrate could show up as
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# CydiaSubstrate.framework, libsubstrate.dylib, EVEN CydiaSubstrate.dylib
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# AND PROBABLY EVEN MORE !!!! IT'S CRAZY.
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"CydiaSubstrate.framework": "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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def __init__(self, path: str):
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if not os.path.isfile(path):
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print(f"[!] {path} does not exist (executable)", file=sys.stderr)
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sys.exit(
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"[?] check the wiki for info: "
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"https://github.com/asdfzxcvbn/pyzule-rw/wiki/"
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"file-does-not-exist-(executable)-%3F"
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)
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self.path = 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 os.path.isfile(self.idylib):
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self.inj_func = self.idyl_inject
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else:
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self.inj_func = self.lief_inj
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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 remove_signature(self) -> None:
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subprocess.run([self.ldid, "-R", self.path], stderr=subprocess.DEVNULL)
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def fakesign(self) -> bool:
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return subprocess.run([self.ldid, "-S", "-M", self.path]).returncode == 0
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def write_entitlements(self, output: str) -> bool:
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with open(output, "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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return os.path.getsize(output) > 0
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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(
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[self.nt, "-change", old, new, self.path],
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stderr=subprocess.DEVNULL
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)
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def lief_inj(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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try:
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self.inj.add(lief.MachO.DylibCommand.weak_lib(cmd)) # type: ignore
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except AttributeError:
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sys.exit("[!] couldn't add LC (lief), did you use a valid app?")
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def idyl_inject(self, cmd: str) -> None:
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proc = subprocess.run(
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[
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self.idylib, "--weak", "--inplace", "--strip-codesig", "--all-yes",
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cmd, self.path
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], capture_output=True, text=True
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)
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if proc.returncode != 0:
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sys.exit(f"[!] couldn't add LC (insert_dylib), error:\n{proc.stderr}")
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def fix_dependencies(self, tweaks: dict[str, str], need: set[str]) -> None:
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self.remove_signature()
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for dep in self.get_dependencies():
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for cname in (tweaks | self.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 dep != npath:
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self.change_dependency(dep, npath)
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print(f"[*] fixed dependency in {self.bn}: {dep} -> {npath}")
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if cname in self.common:
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need.add(cname)
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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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