mirror of
https://github.com/Droid-Deck/DroidDeck.git
synced 2026-11-11 19:11:08 +00:00
104 lines
3.9 KiB
Python
104 lines
3.9 KiB
Python
import os
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from pathlib import Path
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import shutil
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import subprocess
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import sys
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import tempfile
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import unittest
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SOURCE = Path(__file__).resolve().parents[2] / "app/src/main/cpp/fakeinput_steam.cpp"
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PROGRAM = r"""
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#define _GNU_SOURCE
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#include <assert.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int main(int argc, char **argv) {
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assert(argc == 4);
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void *symbol = dlsym(RTLD_DEFAULT, argv[1]);
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assert(symbol);
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int (*plain)(const char *, int, ...) = symbol;
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int (*at)(int, const char *, int, ...) = symbol;
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int relative = strstr(argv[1], "at") != NULL;
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int temporary = !strcmp(argv[2], "temporary");
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int directory = !strcmp(argv[2], "directory");
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int dirfd = open(argv[3], O_RDONLY | O_DIRECTORY);
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assert(dirfd >= 0);
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assert(fchdir(dirfd) == 0);
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umask(0);
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const char *path = temporary || directory ? "." : "created";
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int flags = directory ? O_RDONLY | O_DIRECTORY : O_RDWR | (temporary ? O_TMPFILE : O_CREAT | O_EXCL);
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int fd;
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if (directory) fd = relative ? at(dirfd, path, flags) : plain(path, flags);
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else fd = relative ? at(dirfd, path, flags, 0640) : plain(path, flags, 0640);
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if (temporary && fd < 0 && (errno == EOPNOTSUPP || errno == EINVAL)) return 77;
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assert(fd >= 0);
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struct stat st;
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assert(fstat(fd, &st) == 0);
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if (directory) assert(S_ISDIR(st.st_mode));
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else {
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if ((st.st_mode & 0777) != 0640) {
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fprintf(stderr, "%s %s: expected mode 640, got %o\n", argv[1], argv[2], st.st_mode & 0777);
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return 1;
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}
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assert(write(fd, "ok", 2) == 2);
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assert(lseek(fd, 0, SEEK_SET) == 0);
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char bytes[2];
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assert(read(fd, bytes, 2) == 2 && !memcmp(bytes, "ok", 2));
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}
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close(fd);
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close(dirfd);
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return 0;
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}
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"""
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@unittest.skipUnless(sys.platform == "linux" and shutil.which("gcc") and shutil.which("g++"),
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"needs Linux, gcc and g++")
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class FakeinputOpenTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.tmp = tempfile.TemporaryDirectory()
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cls.addClassCleanup(cls.tmp.cleanup)
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cls.path = Path(cls.tmp.name)
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source = cls.path / "program.c"
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source.write_text(PROGRAM)
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subprocess.run(["gcc", "-o", str(cls.path / "program"), str(source), "-ldl"], check=True)
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subprocess.run(["g++", "-shared", "-fPIC", "-O2", "-Wno-attributes", "-pthread",
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"-std=c++17", "-static-libstdc++", "-static-libgcc",
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"-Wl,--exclude-libs,ALL", "-o", str(cls.path / "libfakeinput.so"),
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str(SOURCE), "-ldl"], check=True)
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def check_open(self, kind):
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for function in ("open", "openat", "open64", "openat64"):
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with self.subTest(function=function), tempfile.TemporaryDirectory() as directory:
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args = [str(self.path / "program"), function, kind, directory]
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baseline = subprocess.run(args, capture_output=True, text=True)
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if baseline.returncode == 77:
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self.skipTest("filesystem does not support O_TMPFILE")
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self.assertEqual(baseline.returncode, 0, baseline.stderr)
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if kind == "named":
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(Path(directory) / "created").unlink()
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result = subprocess.run(args, env=dict(os.environ, LD_PRELOAD=str(self.path / "libfakeinput.so")),
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capture_output=True, text=True, timeout=10)
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self.assertEqual(result.returncode, 0, result.stderr)
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def test_unnamed_temporary_files_keep_requested_permissions(self):
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self.check_open("temporary")
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def test_named_files_keep_requested_permissions(self):
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self.check_open("named")
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def test_directory_opens_do_not_need_a_mode_argument(self):
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self.check_open("directory")
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if __name__ == "__main__":
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unittest.main()
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