from _sha1 import sha1

import hmac
import os

import json
import uuid

from django.core.urlresolvers import reverse

from seahub.repo_api_tokens.models import RepoAPITokens
from seahub.test_utils import BaseTestCase


class ViaRepoDirTest(BaseTestCase):

    def _create_repo_api_token_obj(self, app_name, permission):
        username = self.user.username
        return RepoAPITokens.objects.create_token(app_name, self.repo_id, username, permission=permission)

    def setUp(self):
        self.login_as(self.user)

        self.repo_id = self.repo.id

        self.file_path = self.file
        self.file_name = os.path.basename(self.file_path.rstrip('/'))

        self.folder_path = self.folder
        self.folder_name = os.path.basename(self.folder_path)

        self.r_app_name, permission = 'app_name', 'r'
        self.repo_r_api_token_obj = self._create_repo_api_token_obj(self.r_app_name, permission)
        self.rw_app_name, permission = 'rw_app_name', 'rw'
        self.repo_rw_api_token_obj = self._create_repo_api_token_obj(self.rw_app_name, permission)

        self.url = reverse('via-repo-dir')
        self.logout()

    def tearDown(self):
        RepoAPITokens.objects.filter(repo_id=self.repo_id).delete()
        self.remove_repo(self.repo_id)

    def test_read_repo_from_valid_token(self):
        headers = {'HTTP_AUTHORIZATION': 'token ' + self.repo_r_api_token_obj.token}
        resp = self.client.get(self.url, **headers)
        json_resp = json.loads(resp.content)

        self.assertEqual(200, resp.status_code)
        assert len(json_resp['dirent_list']) == 2
        assert self.folder_name == json_resp['dirent_list'][0]['name']
        assert self.file_name == json_resp['dirent_list'][1]['name']
        assert len(json_resp['dirent_list'][1]['modifier_name']) > 0
        assert len(json_resp['dirent_list'][1]['modifier_contact_email']) > 0

    def test_read_repo_from_invalid_token(self):
        unique = str(uuid.uuid4())
        token = hmac.new(unique.encode('utf-8'), digestmod=sha1).hexdigest()
        headers = {'HTTP_AUTHORIZATION': 'token ' + token}
        resp = self.client.get(self.url, **headers)
        assert resp.status_code in (401, 403)

    def test_mkdir_repo_from_valid_r_token(self):
        data = {
            'operation': 'mkdir',
        }
        headers = {'HTTP_AUTHORIZATION': 'token ' + self.repo_r_api_token_obj.token}
        url = self.url + '?path=/new'
        resp = self.client.post(url, data=data, **headers)
        self.assertEqual(403, resp.status_code)

    def test_mkdir_repo_from_valid_rw_token(self):
        data = {
            'operation': 'mkdir',
        }
        headers = {'HTTP_AUTHORIZATION': 'token ' + self.repo_rw_api_token_obj.token}
        url = self.url + '?path=/new'
        resp = self.client.post(url, data=data, **headers)
        self.assertEqual(200, resp.status_code)


class ViaUploadLinkTest(BaseTestCase):

    def _create_repo_api_token_obj(self, app_name, permission):
        username = self.user.username
        return RepoAPITokens.objects.create_token(app_name, self.repo_id, username, permission=permission)

    def setUp(self):
        self.login_as(self.user)
        repo_id = self.create_repo(name='test-repo',
                                   desc='',
                                   username=self.user.username,
                                   passwd=None)

        self.repo_id = repo_id
        self.folder_name = os.path.basename(self.create_folder(repo_id=self.repo_id,
                                                               parent_dir='/',
                                                               dirname='folder',
                                                               username='test@test.com'))
        self.file_name = os.path.basename(self.create_file(repo_id=self.repo_id,
                                                           parent_dir='/',
                                                           filename='test.txt',
                                                           username='test@test.com'))

        self.r_app_name, permission = 'app_name', 'r'
        self.repo_r_api_token_obj = self._create_repo_api_token_obj(self.r_app_name, permission)
        self.rw_app_name, permission = 'rw_app_name', 'rw'
        self.repo_rw_api_token_obj = self._create_repo_api_token_obj(self.rw_app_name, permission)

        self.url = reverse('via-upload-link')
        self.logout()

    def tearDown(self):
        RepoAPITokens.objects.filter(repo_id=self.repo_id).delete()
        self.remove_repo(self.repo_id)

    def test_get_upload_link_from_r_token(self):
        data = {
            'path': '/',
        }
        headers = {'HTTP_AUTHORIZATION': 'token ' + self.repo_r_api_token_obj.token}
        resp = self.client.get(self.url, data=data, **headers)
        self.assertEqual(403, resp.status_code)

    def test_get_upload_link_from_rw_token(self):
        data = {
            'path': '/',
        }
        headers = {'HTTP_AUTHORIZATION': 'token ' + self.repo_rw_api_token_obj.token}
        resp = self.client.get(self.url, data=data, **headers)
        self.assertEqual(200, resp.status_code)
        assert resp.content