#!/usr/bin/env python
# Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import os
import pty
import select
import subprocess
from util import build_path, executable_suffix
PERMISSIONS_PROMPT_TEST_TS = "tools/permission_prompt_test.ts"
# This function is copied from:
# https://gist.github.com/hayd/4f46a68fc697ba8888a7b517a414583e
# https://stackoverflow.com/q/52954248/1240268
def tty_capture(cmd, bytes_input):
"""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'}
p = subprocess.Popen(
cmd, bufsize=1, stdin=si, stdout=so, stderr=se, close_fds=True)
os.write(mi, bytes_input)
timeout = .04 # seconds
res = {'stdout': b'', 'stderr': b''}
while True:
ready, _, _ = select.select([mo, me], [], [], 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: # 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']
class Prompt(object):
def __init__(self, deno_exe):
self.deno_exe = deno_exe
def run(self,
arg,
bytes_input,
allow_write=False,
allow_net=False,
allow_env=False,
allow_run=False):
"Returns (return_code, stdout, stderr)."
cmd = [self.deno_exe, PERMISSIONS_PROMPT_TEST_TS, arg]
if allow_write:
cmd.append("--allow-write")
if allow_net:
cmd.append("--allow-net")
if allow_env:
cmd.append("--allow-env")
if allow_run:
cmd.append("--allow-run")
return tty_capture(cmd, bytes_input)
def warm_up(self):
# ignore the ts compiling message
self.run('needsWrite', b'', allow_write=True)
def test_write_yes(self):
code, stdout, stderr = self.run('needsWrite', b'y\n')
assert code == 0
assert stdout == b''
assert b'Deno requests write access' in stderr
def test_write_arg(self):
code, stdout, stderr = self.run('needsWrite', b'', allow_write=True)
assert code == 0
assert stdout == b''
assert stderr == b''
def test_write_no(self):
code, _stdout, stderr = self.run('needsWrite', b'N\n')
assert code == 1
assert b'PermissionDenied: permission denied' in stderr
assert b'Deno requests write access' in stderr
def test_env_yes(self):
code, stdout, stderr = self.run('needsEnv', b'y\n')
assert code == 0
assert stdout == b''
assert b'Deno requests access to environment' in stderr
def test_env_arg(self):
code, stdout, stderr = self.run('needsEnv', b'', allow_env=True)
assert code == 0
assert stdout == b''
assert stderr == b''
def test_env_no(self):
code, _stdout, stderr = self.run('needsEnv', b'N\n')
assert code == 1
assert b'PermissionDenied: permission denied' in stderr
assert b'Deno requests access to environment' in stderr
def test_net_yes(self):
code, stdout, stderr = self.run('needsEnv', b'y\n')
assert code == 0
assert stdout == b''
assert b'Deno requests access to environment' in stderr
def test_net_arg(self):
code, stdout, stderr = self.run('needsNet', b'', allow_net=True)
assert code == 0
assert stdout == b''
assert stderr == b''
def test_net_no(self):
code, _stdout, stderr = self.run('needsNet', b'N\n')
assert code == 1
assert b'PermissionDenied: permission denied' in stderr
assert b'Deno requests network access' in stderr
def test_run_yes(self):
code, stdout, stderr = self.run('needsRun', b'y\n')
assert code == 0
assert stdout == b'hello'
assert b'Deno requests access to run' in stderr
def test_run_arg(self):
code, stdout, stderr = self.run('needsRun', b'', allow_run=True)
assert code == 0
assert stdout == b'hello'
assert stderr == b''
def test_run_no(self):
code, _stdout, stderr = self.run('needsRun', b'N\n')
assert code == 1
assert b'PermissionDenied: permission denied' in stderr
assert b'Deno requests access to run' in stderr
def permission_prompt_test(deno_exe):
p = Prompt(deno_exe)
p.warm_up()
p.test_write_yes()
p.test_write_arg()
p.test_write_no()
p.test_env_yes()
p.test_env_arg()
p.test_env_no()
p.test_net_yes()
p.test_net_arg()
p.test_net_no()
p.test_run_yes()
p.test_run_arg()
p.test_run_no()
def main():
deno_exe = os.path.join(build_path(), "deno" + executable_suffix)
permission_prompt_test(deno_exe)
if __name__ == "__main__":
main()