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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
#
import difflib
import filecmp
import logging
import os
import shutil
import pytest
from testenv import Env, CurlClient, VsFTPD
log = logging.getLogger(__name__)
@pytest.mark.skipif(condition=not Env.has_vsftpd(), reason="missing vsftpd")
class TestVsFTPD:
SUPPORTS_SSL = True
@pytest.fixture(autouse=True, scope='class')
def vsftpds(self, env):
if not TestVsFTPD.SUPPORTS_SSL:
pytest.skip('vsftpd does not seem to support SSL')
vsftpds = VsFTPD(env=env, with_ssl=True)
if not vsftpds.initial_start():
vsftpds.stop()
TestVsFTPD.SUPPORTS_SSL = False
pytest.skip('vsftpd does not seem to support SSL')
yield vsftpds
vsftpds.stop()
def _make_docs_file(self, docs_dir: str, fname: str, fsize: int):
fpath = os.path.join(docs_dir, fname)
data1k = 1024*'x'
flen = 0
with open(fpath, 'w') as fd:
while flen < fsize:
fd.write(data1k)
flen += len(data1k)
return flen
@pytest.fixture(autouse=True, scope='class')
def _class_scope(self, env, vsftpds):
if os.path.exists(vsftpds.docs_dir):
shutil.rmtree(vsftpds.docs_dir)
if not os.path.exists(vsftpds.docs_dir):
os.makedirs(vsftpds.docs_dir)
self._make_docs_file(docs_dir=vsftpds.docs_dir, fname='data-1k', fsize=1024)
self._make_docs_file(docs_dir=vsftpds.docs_dir, fname='data-10k', fsize=10*1024)
self._make_docs_file(docs_dir=vsftpds.docs_dir, fname='data-1m', fsize=1024*1024)
self._make_docs_file(docs_dir=vsftpds.docs_dir, fname='data-10m', fsize=10*1024*1024)
env.make_data_file(indir=env.gen_dir, fname="upload-1k", fsize=1024)
env.make_data_file(indir=env.gen_dir, fname="upload-100k", fsize=100*1024)
env.make_data_file(indir=env.gen_dir, fname="upload-1m", fsize=1024*1024)
def test_31_01_list_dir(self, env: Env, vsftpds: VsFTPD):
curl = CurlClient(env=env)
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/'
r = curl.ftp_ssl_get(urls=[url], with_stats=True)
r.check_stats(count=1, http_status=226)
lines = open(os.path.join(curl.run_dir, 'download_#1.data')).readlines()
assert len(lines) == 4, f'list: {lines}'
# download 1 file, no SSL
@pytest.mark.parametrize("docname", [
'data-1k', 'data-1m', 'data-10m'
])
def test_31_02_download_1(self, env: Env, vsftpds: VsFTPD, docname):
curl = CurlClient(env=env)
srcfile = os.path.join(vsftpds.docs_dir, f'{docname}')
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}?[0-{count-1}]'
r = curl.ftp_ssl_get(urls=[url], with_stats=True)
r.check_stats(count=count, http_status=226)
self.check_downloads(curl, srcfile, count)
@pytest.mark.parametrize("docname", [
'data-1k', 'data-1m', 'data-10m'
])
def test_31_03_download_10_serial(self, env: Env, vsftpds: VsFTPD, docname):
curl = CurlClient(env=env)
srcfile = os.path.join(vsftpds.docs_dir, f'{docname}')
count = 10
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}?[0-{count-1}]'
r = curl.ftp_ssl_get(urls=[url], with_stats=True)
r.check_stats(count=count, http_status=226)
self.check_downloads(curl, srcfile, count)
assert r.total_connects == count + 1, 'should reuse the control conn'
@pytest.mark.parametrize("docname", [
'data-1k', 'data-1m', 'data-10m'
])
def test_31_04_download_10_parallel(self, env: Env, vsftpds: VsFTPD, docname):
curl = CurlClient(env=env)
srcfile = os.path.join(vsftpds.docs_dir, f'{docname}')
count = 10
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}?[0-{count-1}]'
r = curl.ftp_ssl_get(urls=[url], with_stats=True, extra_args=[
'--parallel'
])
r.check_stats(count=count, http_status=226)
self.check_downloads(curl, srcfile, count)
assert r.total_connects > count + 1, 'should have used several control conns'
@pytest.mark.parametrize("docname", [
'upload-1k', 'upload-100k', 'upload-1m'
])
def test_31_05_upload_1(self, env: Env, vsftpds: VsFTPD, docname):
curl = CurlClient(env=env)
srcfile = os.path.join(env.gen_dir, docname)
dstfile = os.path.join(vsftpds.docs_dir, docname)
self._rmf(dstfile)
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/'
r = curl.ftp_ssl_upload(urls=[url], fupload=f'{srcfile}', with_stats=True)
r.check_stats(count=count, http_status=226)
self.check_upload(env, vsftpds, docname=docname)
def _rmf(self, path):
if os.path.exists(path):
return os.remove(path)
# check with `tcpdump` if curl causes any TCP RST packets
@pytest.mark.skipif(condition=not Env.tcpdump(), reason="tcpdump not available")
@pytest.mark.skipif(condition=not Env.curl_is_debug(), reason="needs curl debug")
def test_31_06_shutdownh_download(self, env: Env, vsftpds: VsFTPD):
docname = 'data-1k'
curl = CurlClient(env=env)
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}?[0-{count-1}]'
r = curl.ftp_ssl_get(urls=[url], with_stats=True, with_tcpdump=True)
r.check_stats(count=count, http_status=226)
# vsftp closes control connection without niceties,
# look only at ports from DATA connection.
data_ports = vsftpds.get_data_ports(r)
assert len(data_ports), f'unable to find FTP data port connected to\n{r.dump_logs()}'
assert len(r.tcpdump.get_rsts(ports=data_ports)) == 0, 'Unexpected TCP RST packets'
# check with `tcpdump` if curl causes any TCP RST packets
@pytest.mark.skipif(condition=not Env.tcpdump(), reason="tcpdump not available")
@pytest.mark.skipif(condition=not Env.curl_is_debug(), reason="needs curl debug")
def test_31_07_shutdownh_upload(self, env: Env, vsftpds: VsFTPD):
docname = 'upload-1k'
curl = CurlClient(env=env)
srcfile = os.path.join(env.gen_dir, docname)
dstfile = os.path.join(vsftpds.docs_dir, docname)
self._rmf(dstfile)
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/'
r = curl.ftp_ssl_upload(urls=[url], fupload=f'{srcfile}', with_stats=True, with_tcpdump=True)
r.check_stats(count=count, http_status=226)
# vsftp closes control connection without niceties,
# look only at ports from DATA connection.
data_ports = vsftpds.get_data_ports(r)
assert len(data_ports), f'unable to find FTP data port connected to\n{r.dump_logs()}'
assert len(r.tcpdump.get_rsts(ports=data_ports)) == 0, 'Unexpected TCP RST packets'
def test_31_08_upload_ascii(self, env: Env, vsftpds: VsFTPD):
docname = 'upload-ascii'
line_length = 21
srcfile = os.path.join(env.gen_dir, docname)
dstfile = os.path.join(vsftpds.docs_dir, docname)
env.make_data_file(indir=env.gen_dir, fname=docname, fsize=100*1024,
line_length=line_length)
srcsize = os.path.getsize(srcfile)
self._rmf(dstfile)
count = 1
curl = CurlClient(env=env)
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/'
r = curl.ftp_ssl_upload(urls=[url], fupload=f'{srcfile}', with_stats=True,
extra_args=['--use-ascii'])
r.check_stats(count=count, http_status=226)
# expect the uploaded file to be number of converted newlines larger
dstsize = os.path.getsize(dstfile)
newlines = len(open(srcfile).readlines())
assert (srcsize + newlines) == dstsize, \
f'expected source with {newlines} lines to be that much larger,'\
f'instead srcsize={srcsize}, upload size={dstsize}, diff={dstsize-srcsize}'
def test_31_08_active_download(self, env: Env, vsftpds: VsFTPD):
docname = 'data-10k'
curl = CurlClient(env=env)
srcfile = os.path.join(vsftpds.docs_dir, f'{docname}')
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}?[0-{count-1}]'
r = curl.ftp_ssl_get(urls=[url], with_stats=True, extra_args=[
'--ftp-port', '127.0.0.1'
])
r.check_stats(count=count, http_status=226)
self.check_downloads(curl, srcfile, count)
def test_31_09_active_upload(self, env: Env, vsftpds: VsFTPD):
docname = 'upload-1k'
curl = CurlClient(env=env)
srcfile = os.path.join(env.gen_dir, docname)
dstfile = os.path.join(vsftpds.docs_dir, docname)
self._rmf(dstfile)
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/'
r = curl.ftp_ssl_upload(urls=[url], fupload=f'{srcfile}', with_stats=True, extra_args=[
'--ftp-port', '127.0.0.1'
])
r.check_stats(count=count, http_status=226)
self.check_upload(env, vsftpds, docname=docname)
@pytest.mark.parametrize("indata", [
pytest.param('1234567890', id='10-bytes'),
pytest.param('', id='0-bytes'),
])
def test_31_10_upload_stdin(self, env: Env, vsftpds: VsFTPD, indata):
curl = CurlClient(env=env)
docname = "upload_31_10"
dstfile = os.path.join(vsftpds.docs_dir, docname)
self._rmf(dstfile)
count = 1
url = f'ftp://{env.ftp_domain}:{vsftpds.port}/{docname}'
r = curl.ftp_ssl_upload(urls=[url], updata=indata, with_stats=True)
r.check_stats(count=count, http_status=226)
assert os.path.exists(dstfile)
destdata = open(dstfile).readlines()
expdata = [indata] if len(indata) else []
assert expdata == destdata, f'expected: {expdata}, got: {destdata}'
def check_downloads(self, client, srcfile: str, count: int,
complete: bool = True):
for i in range(count):
dfile = client.download_file(i)
assert os.path.exists(dfile)
if complete and not filecmp.cmp(srcfile, dfile, shallow=False):
diff = "".join(difflib.unified_diff(a=open(srcfile).readlines(),
b=open(dfile).readlines(),
fromfile=srcfile,
tofile=dfile,
n=1))
assert False, f'download {dfile} differs:\n{diff}'
def check_upload(self, env, vsftpd: VsFTPD, docname):
srcfile = os.path.join(env.gen_dir, docname)
dstfile = os.path.join(vsftpd.docs_dir, docname)
assert os.path.exists(srcfile)
assert os.path.exists(dstfile)
if not filecmp.cmp(srcfile, dstfile, shallow=False):
diff = "".join(difflib.unified_diff(a=open(srcfile).readlines(),
b=open(dstfile).readlines(),
fromfile=srcfile,
tofile=dstfile,
n=1))
assert False, f'upload {dstfile} differs:\n{diff}'
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