# -*- coding: utf-8 -*-

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""

Test suite for vcs push/pull operations.

The tests need Git > 1.8.1.

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Dec 30, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import os

import re

import tempfile

import time

import urllib2

import json

from tempfile import _RandomNameSequence

from subprocess import Popen, PIPE

import pytest

from kallithea.tests.base import *

from kallithea.tests.fixture import Fixture

from kallithea.model.db import User, Repository, UserIpMap, CacheInvalidation, Ui, UserLog

from kallithea.model.meta import Session

from kallithea.model.repo import RepoModel

from kallithea.model.user import UserModel

DEBUG = True

HOST = '127.0.0.1:4999'  # test host

fixture = Fixture()

# Parameterize different kinds of VCS testing - both the kind of VCS and the

# access method (HTTP/SSH)

class HttpVcsTest(object):

    @staticmethod

    def repo_url_param(webserver, repo_name, **kwargs):

        return webserver.repo_url(repo_name, **kwargs)

class HgVcsTest(object):

    repo_type = 'hg'

    repo_name = HG_REPO

class GitVcsTest(object):

    repo_type = 'git'

    repo_name = GIT_REPO

class HgHttpVcsTest(HgVcsTest, HttpVcsTest):

    pass

class GitHttpVcsTest(GitVcsTest, HttpVcsTest):

    pass

parametrize_vcs_test = parametrize('vt', [

    HgHttpVcsTest,

    GitHttpVcsTest,

])

parametrize_vcs_test_hg = parametrize('vt', [

    HgHttpVcsTest,

])

parametrize_vcs_test_http = parametrize('vt', [

    HgHttpVcsTest,

    GitHttpVcsTest,

])

class Command(object):

    def __init__(self, cwd):

        self.cwd = cwd

    def execute(self, *args, **environ):

        """

        Runs command on the system with given ``args`` using simple space

        join without safe quoting.

        """

        command = ' '.join(args)

        ignoreReturnCode = environ.pop('ignoreReturnCode', False)

        if DEBUG:

            print '*** CMD %s ***' % command

        testenv = dict(os.environ)

        testenv['LANG'] = 'en_US.UTF-8'

        testenv['LANGUAGE'] = 'en_US:en'

        testenv['HGPLAIN'] = ''

        testenv['HGRCPATH'] = ''

        testenv.update(environ)

        p = Popen(command, shell=True, stdout=PIPE, stderr=PIPE, cwd=self.cwd, env=testenv)

        stdout, stderr = p.communicate()

        if DEBUG:

            if stdout:

                print 'stdout:', stdout

            if stderr:

                print 'stderr:', stderr

        if not ignoreReturnCode:

            assert p.returncode == 0

        return stdout, stderr

def _get_tmp_dir(prefix='vcs_operations-', suffix=''):

    return tempfile.mkdtemp(dir=TESTS_TMP_PATH, prefix=prefix, suffix=suffix)

def _add_files(vcs, dest_dir, files_no=3):

    """

    Generate some files, add it to dest_dir repo and push back

    vcs is git or hg and defines what VCS we want to make those files for

    :param vcs:

    :param dest_dir:

    """

    added_file = '%ssetup.py' % _RandomNameSequence().next()

    open(os.path.join(dest_dir, added_file), 'a').close()

    Command(dest_dir).execute(vcs, 'add', added_file)

    email = 'me@example.com'

    if os.name == 'nt':

        author_str = 'User <%s>' % email

    else:

        author_str = 'User ǝɯɐᴎ <%s>' % email

    for i in xrange(files_no):

        cmd = """echo "added_line%s" >> %s""" % (i, added_file)

        Command(dest_dir).execute(cmd)

        if vcs == 'hg':

            cmd = """hg commit -m "committed new %s" -u "%s" "%s" """ % (

                i, author_str, added_file

            )

        elif vcs == 'git':

            cmd = """git commit -m "committed new %s" --author "%s" "%s" """ % (

                i, author_str, added_file

            )

        # git commit needs EMAIL on some machines

        Command(dest_dir).execute(cmd, EMAIL=email)

def _add_files_and_push(webserver, vt, dest_dir, clone_url, ignoreReturnCode=False, files_no=3):

    _add_files(vt.repo_type, dest_dir, files_no=files_no)

    # PUSH it back

    stdout = stderr = None

    if vt.repo_type == 'hg':

        stdout, stderr = Command(dest_dir).execute('hg push --verbose', clone_url, ignoreReturnCode=ignoreReturnCode)

    elif vt.repo_type == 'git':

        stdout, stderr = Command(dest_dir).execute('git push --verbose', clone_url, "master", ignoreReturnCode=ignoreReturnCode)

    return stdout, stderr

def _check_outgoing(vcs, cwd, clone_url):

    if vcs == 'hg':

        # hg removes the password from default URLs, so we have to provide it here via the clone_url

        return Command(cwd).execute('hg -q outgoing', clone_url, ignoreReturnCode=True)

    elif vcs == 'git':

        Command(cwd).execute('git remote update')

        return Command(cwd).execute('git log origin/master..master')

def set_anonymous_access(enable=True):

    user = User.get_default_user()

    user.active = enable

    Session().commit()

    if enable != User.get_default_user().active:

        raise Exception('Cannot set anonymous access')

#==============================================================================

# TESTS

#==============================================================================

def _check_proper_git_push(stdout, stderr):

    assert 'fatal' not in stderr

    assert 'rejected' not in stderr

    assert 'Pushing to' in stderr

    assert 'master -> master' in stderr

@pytest.mark.usefixtures("test_context_fixture")

class TestVCSOperations(TestController):

    @classmethod

    def setup_class(cls):

        # DISABLE ANONYMOUS ACCESS

        set_anonymous_access(False)

    @pytest.fixture()

    def testhook_cleanup(self):

        yield

        # remove hook

        for hook in ['prechangegroup', 'pretxnchangegroup', 'preoutgoing', 'changegroup', 'outgoing', 'incoming']:

            entry = Ui.get_by_key('hooks', '%s.testhook' % hook)

            if entry:

                Session().delete(entry)

        Session().commit()

    @pytest.fixture(scope="module")

    def testfork(self):

        # create fork so the repo stays untouched

        git_fork_name = u'%s_fork%s' % (GIT_REPO, _RandomNameSequence().next())

        fixture.create_fork(GIT_REPO, git_fork_name)

        hg_fork_name = u'%s_fork%s' % (HG_REPO, _RandomNameSequence().next())

        fixture.create_fork(HG_REPO, hg_fork_name)

        return {'git': git_fork_name, 'hg': hg_fork_name}

    @parametrize_vcs_test

    def test_clone_repo_by_admin(self, webserver, vt):

        clone_url = vt.repo_url_param(webserver, vt.repo_name)

        stdout, stderr = Command(TESTS_TMP_PATH).execute(vt.repo_type, 'clone', clone_url, _get_tmp_dir())

        if vt.repo_type == 'git':

            assert 'Cloning into' in stdout + stderr

            assert stderr == '' or stdout == ''

        elif vt.repo_type == 'hg':

            assert 'requesting all changes' in stdout

            assert 'adding changesets' in stdout

            assert 'adding manifests' in stdout

            assert 'adding file changes' in stdout

            assert stderr == ''

    @parametrize_vcs_test_http

    def test_clone_wrong_credentials(self, webserver, vt):

        clone_url = vt.repo_url_param(webserver, vt.repo_name, password='bad!')

        stdout, stderr = Command(TESTS_TMP_PATH).execute(vt.repo_type, 'clone', clone_url, _get_tmp_dir(), ignoreReturnCode=True)

        if vt.repo_type == 'git':

            assert 'fatal: Authentication failed' in stderr

        elif vt.repo_type == 'hg':

            assert 'abort: authorization failed' in stderr

    def test_clone_git_dir_as_hg(self, webserver):

        clone_url = HgHttpVcsTest.repo_url_param(webserver, GIT_REPO)

        stdout, stderr = Command(TESTS_TMP_PATH).execute('hg clone', clone_url, _get_tmp_dir(), ignoreReturnCode=True)

        assert 'HTTP Error 404: Not Found' in stderr

    def test_clone_hg_repo_as_git(self, webserver):

        clone_url = GitHttpVcsTest.repo_url_param(webserver, HG_REPO)

        stdout, stderr = Command(TESTS_TMP_PATH).execute('git clone', clone_url, _get_tmp_dir(), ignoreReturnCode=True)

        assert 'not found' in stderr

    @parametrize_vcs_test

    def test_clone_non_existing_path(self, webserver, vt):

        clone_url = vt.repo_url_param(webserver, 'trololo')

        stdout, stderr = Command(TESTS_TMP_PATH).execute(vt.repo_type, 'clone', clone_url, _get_tmp_dir(), ignoreReturnCode=True)

        if vt.repo_type == 'git':