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

"""
 (c) 2015-2018 - Copyright Red Hat Inc

 Authors:
   Patrick Uiterwijk <puiterwijk@redhat.com>

"""

from __future__ import unicode_literals

__requires__ = ['SQLAlchemy >= 0.8']
import pkg_resources

import datetime
import unittest
import shutil
import sys
import tempfile
import os

import six
import json
import pygit2
from mock import patch, MagicMock

sys.path.insert(0, os.path.join(os.path.dirname(
    os.path.abspath(__file__)), '..'))

import pagure.lib
import tests


class PagureFlaskAppClonetests(tests.Modeltests):
    """ Tests for the clone bridging. """

    def setUp(self):
        super(PagureFlaskAppClonetests, self).setUp()

        tests.create_projects(self.session)
        tests.create_tokens(self.session)
        tests.create_tokens_acl(self.session)
        self.create_project_full('clonetest', {"create_readme": "y"})

    @patch.dict('pagure.config.config', {'ALLOW_HTTP_PULL_PUSH': False})
    def test_http_clone_disabled(self):
        """ Test that the HTTP clone endpoint gets correctly closed. """
        output = self.app.get('/clonetest.git/info/refs?service=git-upload-pack')
        self.assertEqual(output.status_code, 403)
        self.assertIn('not allowed', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {'ALLOW_HTTP_PULL_PUSH': True})
    def test_http_clone_invalid_service(self):
        """ Test that the HTTP endpoint refuses invalid services. """
        output = self.app.get('/clonetest.git/info/refs?service=myservice')
        self.assertEqual(output.status_code, 400)
        self.assertIn('Unknown service', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {'ALLOW_HTTP_PULL_PUSH': True})
    def test_http_clone_invalid_project(self):
        """ Test that the HTTP endpoint refuses invalid projects. """
        output = self.app.get('/nosuchrepo.git/info/refs?service=git-upload-pack')
        self.assertEqual(output.status_code, 404)
        self.assertIn('Project not found', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {'ALLOW_HTTP_PULL_PUSH': True})
    def test_http_clone_dumb(self):
        """ Test that the HTTP endpoint refuses dumb service request. """
        output = self.app.get('/clonetest.git/info/refs')
        self.assertEqual(output.status_code, 400)
        self.assertIn('Please switch', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {
        'ALLOW_HTTP_PULL_PUSH': True,
        'ALLOW_HTTP_PUSH': False,
        'HTTP_REPO_ACCESS_GITOLITE': None,
    })
    def test_http_push_disabled(self):
        """ Test that the HTTP push gets refused. """
        output = self.app.get('/clonetest.git/info/refs?service=git-receive-pack')
        self.assertEqual(output.status_code, 403)
        self.assertIn('pushing disabled', output.get_data(as_text=True))
        output = self.app.post('/clonetest.git/git-receive-pack')
        self.assertEqual(output.status_code, 403)
        self.assertIn('pushing disabled', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {
        'ALLOW_HTTP_PULL_PUSH': True,
        'ALLOW_HTTP_PUSH': True,
        'HTTP_REPO_ACCESS_GITOLITE': None,
    })
    def test_http_push_unauthed(self):
        """ Test that the HTTP push gets refused unauthed. """
        output = self.app.get('/clonetest.git/info/refs?service=git-receive-pack')
        self.assertEqual(output.status_code, 403)
        self.assertIn('Unauthenticated push', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {'ALLOW_HTTP_PULL_PUSH': True})
    def test_http_clone_private_project_unauthed(self):
        """ Test that the HTTP endpoint enforced project.private. """
        project = pagure.lib._get_project(self.session, 'clonetest')
        project.private = True
        self.session.add(project)
        self.session.commit()

        output = self.app.get('/clonetest.git/info/refs?service=git-upload-pack')
        self.assertEqual(output.status_code, 404)
        self.assertIn('Project not found', output.get_data(as_text=True))

    @patch.dict('pagure.config.config', {
        'ALLOW_HTTP_PULL_PUSH': True,
        'ALLOW_HTTP_PUSH': False,
        'HTTP_REPO_ACCESS_GITOLITE': None,
    })
    def test_http_clone(self):
        """ Test that HTTP cloning gives reasonable output. """
        # Unfortunately, actually testing a git clone would need the app to
        # run on a TCP port, which the test environment doesn't do.

        output = self.app.get('/clonetest.git/info/refs?service=git-upload-pack')
        self.assertEqual(output.status_code, 200)
        output_text = output.get_data(as_text=True)
        self.assertIn("# service=git-upload-pack", output_text)
        self.assertIn(" refs/heads/master\n0000", output_text)

        output = self.app.post(
            '/clonetest.git/git-upload-pack',
            headers={'Content-Type': 'application/x-git-upload-pack-request'},
        )
        # Git 2.17 returns 415, older return 200
        # Either means we didn't fully crash when returning the response
        self.assertIn(output.status_code, (200, 415))

    @patch.dict('pagure.config.config', {
        'ALLOW_HTTP_PULL_PUSH': True,
        'ALLOW_HTTP_PUSH': False,
        'HTTP_REPO_ACCESS_GITOLITE': None,
    })
    def test_http_clone_private(self):
        """ Test that HTTP cloning gives reasonable output with project.private. """
        # Unfortunately, actually testing a git clone would need the app to
        # run on a TCP port, which the test environment doesn't do.
        project = pagure.lib._get_project(self.session, 'clonetest')
        project.private = True
        self.session.add(project)
        self.session.commit()

        output = self.app.get('/clonetest.git/info/refs?service=git-upload-pack')
        self.assertEqual(output.status_code, 404)
        self.assertIn('Project not found', output.get_data(as_text=True))

        output = self.app.get(
            '/clonetest.git/info/refs?service=git-upload-pack',
            environ_overrides={'REMOTE_USER': 'pingou'},
        )
        self.assertEqual(output.status_code, 200)
        output_text = output.get_data(as_text=True)
        self.assertIn("# service=git-upload-pack", output_text)
        self.assertIn(" refs/heads/master\n0000", output_text)

    @patch.dict('pagure.config.config', {
        'ALLOW_HTTP_PULL_PUSH': True,
        'ALLOW_HTTP_PUSH': True,
        'HTTP_REPO_ACCESS_GITOLITE': None,
    })
    def test_http_push(self):
        """ Test that the HTTP push gets accepted. """
        output = self.app.get(
            '/clonetest.git/info/refs?service=git-receive-pack',
            environ_overrides={'REMOTE_USER': 'pingou'},
        )
        self.assertEqual(output.status_code, 200)
        output_text = output.get_data(as_text=True)
        self.assertIn("# service=git-receive-pack", output_text)
        self.assertIn(" refs/heads/master\x00", output_text)