#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import os
import pty
import select
import subprocess
import sys
import time
from util import build_path, executable_suffix, green_ok, red_failed
PERMISSIONS_PROMPT_TEST_TS = "tools/permission_prompt_test.ts"
PROMPT_PATTERN = b'⚠️'
FIRST_CHECK_FAILED_PATTERN = b'First check failed'
PERMISSION_DENIED_PATTERN = b'PermissionDenied: permission denied'
# This function is copied from:
# https://gist.github.com/hayd/4f46a68fc697ba8888a7b517a414583e
# https://stackoverflow.com/q/52954248/1240268
def tty_capture(cmd, bytes_input, timeout=5):
"""Capture the output of cmd with bytes_input to stdin,
with stdin, stdout and stderr as TTYs."""
mo, so = pty.openpty() # provide tty to enable line-buffering
me, se = pty.openpty()
mi, si = pty.openpty()
fdmap = {mo: 'stdout', me: 'stderr', mi: 'stdin'}
timeout_exact = time.time() + timeout
p = subprocess.Popen(
cmd, bufsize=1, stdin=si, stdout=so, stderr=se, close_fds=True)
os.write(mi, bytes_input)
select_timeout = .04 #seconds
res = {'stdout': b'', 'stderr': b''}
while True:
ready, _, _ = select.select([mo, me], [], [], select_timeout)
if ready:
for fd in ready:
data = os.read(fd, 512)
if not data:
break
res[fdmap[fd]] += data
elif p.poll() is not None or time.time(
) > timeout_exact: # select timed-out
break # p exited
for fd in [si, so, se, mi, mo, me]:
os.close(fd) # can't do it sooner: it leads to errno.EIO error
p.wait()
return p.returncode, res['stdout'], res['stderr']
# Wraps a test in debug printouts
# so we have visual indicator of what test failed
def wrap_test(test_name, test_method, *argv):
sys.stdout.write(test_name + " ... ")
try:
test_method(*argv)
print green_ok()
except AssertionError:
print red_failed()
raise
class Prompt(object):
def __init__(self, deno_exe, test_types):
self.deno_exe = deno_exe
self.test_types = test_types
def run(self, flags, args, bytes_input):
"Returns (return_code, stdout, stderr)."
cmd = [self.deno_exe] + flags + [PERMISSIONS_PROMPT_TEST_TS] + args
return tty_capture(cmd, bytes_input)
def warm_up(self):
# ignore the ts compiling message
self.run(["--allow-write"], 'needsWrite', b'')
def test(self):
for test_type in self.test_types:
test_name_base = "test_" + test_type
wrap_test(test_name_base + "_allow_flag", self.test_allow_flag,
test_type)
wrap_test(test_name_base + "_yes_yes", self.test_yes_yes,
test_type)
wrap_test(test_name_base + "_yes_no", self.test_yes_no, test_type)
wrap_test(test_name_base + "_no_no", self.test_no_no, test_type)
wrap_test(test_name_base + "_no_yes", self.test_no_yes, test_type)
wrap_test(test_name_base + "_allow", self.test_allow, test_type)
wrap_test(test_name_base + "_deny", self.test_deny, test_type)
wrap_test(test_name_base + "_unrecognized_option",
self.test_unrecognized_option, test_type)
wrap_test(test_name_base + "_no_prompt", self.test_no_prompt,
test_type)
wrap_test(test_name_base + "_no_prompt_allow",
self.test_no_prompt_allow, test_type)
def test_allow_flag(self, test_type):
code, stdout, stderr = self.run(
["--allow-" + test_type], ["needs" + test_type.capitalize()], b'')
assert code == 0
assert not PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
def test_yes_yes(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'y\ny\n')
assert code == 0
assert PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
def test_yes_no(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'y\nn\n')
assert code == 1
assert PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert PERMISSION_DENIED_PATTERN in stderr
def test_no_no(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'n\nn\n')
assert code == 1
assert PROMPT_PATTERN in stderr
assert FIRST_CHECK_FAILED_PATTERN in stdout
assert PERMISSION_DENIED_PATTERN in stderr
def test_no_yes(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'n\ny\n')
assert code == 0
assert PROMPT_PATTERN in stderr
assert FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
def test_allow(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'a\n')
assert code == 0
assert PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
def test_deny(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'd\n')
assert code == 1
assert PROMPT_PATTERN in stderr
assert FIRST_CHECK_FAILED_PATTERN in stdout
assert PERMISSION_DENIED_PATTERN in stderr
def test_unrecognized_option(self, test_type):
code, stdout, stderr = self.run([], ["needs" + test_type.capitalize()],
b'e\na\n')
assert code == 0
assert PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
assert b'Unrecognized option' in stderr
def test_no_prompt(self, test_type):
code, stdout, stderr = self.run(
["--no-prompt"], ["needs" + test_type.capitalize()], b'')
assert code == 1
assert not PROMPT_PATTERN in stderr
assert FIRST_CHECK_FAILED_PATTERN in stdout
assert PERMISSION_DENIED_PATTERN in stderr
def test_no_prompt_allow(self, test_type):
code, stdout, stderr = self.run(
["--no-prompt", "--allow-" + test_type],
["needs" + test_type.capitalize()], b'')
assert code == 0
assert not PROMPT_PATTERN in stderr
assert not FIRST_CHECK_FAILED_PATTERN in stdout
assert not PERMISSION_DENIED_PATTERN in stderr
def permission_prompt_test(deno_exe):
p = Prompt(deno_exe, ["read", "write", "env", "net", "run"])
p.test()
def main():
print "Permissions prompt tests"
deno_exe = os.path.join(build_path(), "deno" + executable_suffix)
permission_prompt_test(deno_exe)
if __name__ == "__main__":
main()