261 lines
10 KiB
Python
261 lines
10 KiB
Python
import hashlib
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import json
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import os
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import re
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import shutil
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from pathlib import Path
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import xmltodict
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import yaml
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def any2str(data: any) -> str:
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if isinstance(data, (bytes, bytearray)):
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data = data.decode("utf-8")
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if isinstance(data, (dict, list)):
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data = json.dumps(data, indent=2, separators=(",", ":"))
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return str(data)
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class Keystore:
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def __init__(
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self,
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algo: str = "RSA",
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size: int = 2048,
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sign: str = "SHA-256",
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validity: int = 365,
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password: str = None,
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alias: str = None,
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meta: dict = None,
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path: Path = Path("..")
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):
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assert path.is_dir(), "Invalid Dir Path"
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assert algo in ["RSA", "EC", "DSA"], "Invalid Algorithm"
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assert sign in ["MD5", "SHA-1", "SHA-256", "SHA-512"], "Invalid Signature"
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if algo == "RSA":
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assert size in [1024, 2048, 3072, 4096], "Invalid RSA Size"
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assert sign in ["MD5", "SHA-1", "SHA-256", "SHA-512"], "Invalid RSA Signature"
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elif algo == "EC":
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assert size in [192, 224, 256, 384, 521], "Invalid EC Size"
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assert sign in ["SHA-256", "SHA-512"], "Invalid EC Signature"
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elif algo == "DSA":
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assert size in [1024], "Invalid DSA Size"
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assert sign in ["SHA-1"], "Invalid DSA Signature"
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self.algorithm = algo
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self.size = size
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self.signature = "{}with{}".format(
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sign.replace("-", ""),
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"ECDSA" if algo == "EC" else algo
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)
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self.digest = sign
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self.validity = validity
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meta = meta if meta else {}
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self.metadata = {
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"common_name": meta.get("common_name", "Unknown"),
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"organizational_unit": meta.get("organizational_unit", "Unknown"),
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"organization": meta.get("organization", "Unknown"),
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"locality": meta.get("locality", "Unknown"),
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"state": meta.get("state", "Unknown"),
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"country": meta.get("country", "Unknown"),
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}
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match = re.search(r'[\s:]?([a-zA-Z]+)', self.metadata["common_name"])
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name = re.sub(r'[^A-Za-z0-9]', "", match.group(1)).lower() if match else "keystore"
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self.path = path / f"{name}_{algo.lower()}.p12"
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self.password = password or f"{name}_password"
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self.alias = alias or f"{name}_alias"
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def __repr__(self) -> str:
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return json.dumps({
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"path": str(self.path),
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"algorithm": self.algorithm,
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"size": self.size,
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"signature": self.signature,
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"digest": self.digest,
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"validity": self.validity,
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"password": self.password,
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"alias": self.alias,
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"metadata": self.metadata
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}, indent=2)
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def sign(self, path: Path) -> None:
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assert path.is_file() and path.suffix == ".apk", "Invalid APK Path"
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if not self.path.is_file():
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tmp = Path("keystore.jks")
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os.system(
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'keytool -genkeypair -keystore "{}" -alias "{}" -keyalg "{}" -keysize "{}" -sigalg "{}" -validity "{}" -storepass "{}" -keypass "{}" -dname "CN=\\"{}\\", OU=\\"{}\\", O=\\"{}\\", L=\\"{}\\", ST=\\"{}\\", C=\\"{}\\"" -noprompt'.format(
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tmp, self.alias, self.algorithm, self.size, self.signature,
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self.validity, self.password, self.password, self.metadata["common_name"],
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self.metadata["organizational_unit"], self.metadata["organization"],
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self.metadata["locality"], self.metadata["state"], self.metadata["country"]
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))
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os.system(
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'keytool -importkeystore -srckeystore "{}" -srcstorepass "{}" -destkeystore "{}" -deststoretype "PKCS12" -deststorepass "{}" -destkeypass "{}" -srcalias "{}"'.format(
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tmp, self.password, self.path, self.password, self.password, self.alias
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))
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tmp.unlink(missing_ok=True)
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os.system('apksigner sign --ks "{}" --ks-key-alias "{}" --ks-pass "pass:{}" --key-pass "pass:{}" "{}"'.format(
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self.path, self.alias, self.password, self.password, path
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))
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Path(str(path) + ".idsig").unlink(missing_ok=True)
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def info(self, path: Path) -> None:
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assert path.is_file() and path.suffix == ".apk", "Invalid APK Path"
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os.system(f'apksigner verify --print-certs "{path}"')
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class ApkTool:
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def __init__(self, instance: Path = Path(".apktool")):
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self.instance = instance
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def decompile(self, path: Path) -> None:
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assert path.is_file() and path.suffix == ".apk", "Invalid APK Path"
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if not self.instance.is_dir():
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os.system(f'apktool d "{path}" -o "{self.instance}" -f --no-crunch --only-main-classes')
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def compile(self, path: Path) -> None:
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assert path.suffix == ".apk", "Invalid APK Path"
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if not path.is_file():
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assert self.instance.is_dir(), "Invalid ApkTool Path"
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tmp = Path("unaligned.apk")
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os.system(f'apktool b "{self.instance}" -o "{tmp}" -f --no-crunch')
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if tmp.is_file(): os.system(f'zipalign -f -p "4" "{tmp}" "{path}"')
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if path.is_file(): shutil.rmtree(self.instance, ignore_errors=True)
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tmp.unlink(missing_ok=True)
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def rename_app(parent: Path, name: str) -> None:
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manifest_path = parent / "AndroidManifest.xml"
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if not manifest_path.is_file():
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raise FileNotFoundError(manifest_path)
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manifest_dict = xmltodict.parse(manifest_path.read_bytes(), encoding="utf-8")
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value = str(manifest_dict["manifest"]["application"]["@android:label"])
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if value.startswith("@string/"):
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key = value.split("@string/")[1]
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source = None
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for path in (parent / "res").iterdir():
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strings_path = path / "strings.xml"
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if "values" in str(path) and strings_path.is_file():
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strings_dict = xmltodict.parse(strings_path.read_bytes(), encoding="utf-8")
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for item in strings_dict["resources"]["string"]:
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if isinstance(item, dict) and item["@name"] == key:
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source = item["#text"]
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print(f"I: Patching {strings_path.name} ({strings_path.parent})")
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if source != name:
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item["#text"] = name
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strings_path.write_bytes(
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xmltodict.unparse(strings_dict, encoding="utf-8", pretty=True).encode("utf-8"))
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break
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if not source:
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raise ImportError(value)
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else:
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manifest_dict["manifest"]["application"]["@android:label"] = name
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manifest_path.write_bytes(xmltodict.unparse(manifest_dict, encoding="utf-8", pretty=True).encode("utf-8"))
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print(f"I: Patching {manifest_path.name} ({manifest_path.parent})")
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if __name__ == "__main__":
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config = Path("config.yaml")
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if not config.is_file():
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config = Path(input("Config Path: "))
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if not config.is_file():
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raise FileNotFoundError(config)
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content = yaml.safe_load(config.read_text())
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apktool = ApkTool()
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jks = Keystore(**content["keystore"])
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src = Path(content["metadata"]["input"])
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opt = Path(content["metadata"]["output"])
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for key, value in content["metadata"].items():
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print(f"I: {key.capitalize()}: {value}")
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if not opt.is_file():
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apktool.decompile(src)
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# @Info: Patch apk
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for key, value in content["patch"].items(): # {Path: list[tuple]}
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path = apktool.instance / key
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if not path.is_file():
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exist = False
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for subp in apktool.instance.iterdir():
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path = subp / key
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if path.is_file():
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exist = True
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break
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if not exist:
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raise FileNotFoundError(key)
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src_data = path.read_text()
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for v in value:
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if v[0] is None:
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if isinstance(v[1], str):
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# @Info: Replace complet file using [None, Path]
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v[1] = Path(v[1])
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if not v[1].is_file():
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raise FileNotFoundError(v[1])
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src_data = v[1].read_text()
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elif v[1] is None:
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# @Info: Replace with empty file
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src_data = ""
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else:
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# @Info: Replace with custom char
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src_data = any2str(v[1])
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elif v[1] is None:
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# @Info: Replace functon using [Path, None]
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if not isinstance(v[0], str):
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raise ImportError(v[0])
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v[0] = Path(v[0])
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if not v[0].is_file():
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raise FileNotFoundError(v[0])
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opt_data = v[0].read_text()
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if opt_data not in src_data:
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try:
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keys = opt_data.split("\n")
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start = next(filter(None, keys), None)
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stop = next(filter(None, reversed(keys)), None)
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start_index = src_data.index(start)
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stop_index = src_data.index(stop, start_index) + len(stop)
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src_data = src_data.replace(src_data[start_index:stop_index], opt_data)
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except Exception as e:
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raise ValueError(v[0])
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else:
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# @Info: Replace char using [str, str]
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if not v[0] in src_data and not v[1] in src_data:
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raise ImportError(v[0])
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src_data = src_data.replace(*v)
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path.write_text(src_data)
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print(f"I: Patching {path.name} ({path.parent})")
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# @Info: Rename apk
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name = content["metadata"].get("name")
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if name:
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rename_app(apktool.instance, name)
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apktool.compile(opt)
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print(f"I: Keystore: {jks.path}")
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print(f"I: Validity: {jks.validity}")
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jks.sign(opt)
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jks.info(opt)
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print(f'I: MD5: {hashlib.md5(opt.read_bytes()).hexdigest()}')
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