# -*- 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/>.

"""

kallithea.lib.celerylib.tasks

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Kallithea task modules, containing all task that suppose to be run

by celery daemon

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: Oct 6, 2010

:author: marcink

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

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

"""

import email.utils

import os

import traceback

from collections import OrderedDict

from operator import itemgetter

from time import mktime

import celery.utils.log

from tg import config

import kallithea

from kallithea.lib import celerylib, conf, ext_json

from kallithea.lib.helpers import person

from kallithea.lib.hooks import log_create_repository

from kallithea.lib.indexers.daemon import WhooshIndexingDaemon

from kallithea.lib.utils import action_logger

from kallithea.lib.utils2 import asbool, ascii_bytes

from kallithea.lib.vcs.utils import author_email

from kallithea.model import db

from kallithea.model.repo import RepoModel

__all__ = ['whoosh_index', 'get_commits_stats', 'send_email']

log = celery.utils.log.get_task_logger(__name__)

@celerylib.task

@celerylib.locked_task

@celerylib.dbsession

def whoosh_index(repo_location, full_index):

    celerylib.get_session() # initialize database connection

    index_location = config['index_dir']

    WhooshIndexingDaemon(index_location=index_location,

                         repo_location=repo_location) \

                         .run(full_index=full_index)

# for js data compatibility cleans the key for person from '

def akc(k):

    return person(k).replace('"', '')

@celerylib.task

@celerylib.dbsession

def get_commits_stats(repo_name, ts_min_y, ts_max_y, recurse_limit=100):

    DBS = celerylib.get_session()

    lockkey = celerylib.__get_lockkey('get_commits_stats', repo_name, ts_min_y,

                            ts_max_y)

    lockkey_path = config.get('cache_dir') or config['app_conf']['cache_dir']  # Backward compatibility for TurboGears < 2.4

    log.info('running task with lockkey %s', lockkey)

    try:

        lock = celerylib.DaemonLock(os.path.join(lockkey_path, lockkey))

        co_day_auth_aggr = {}

        commits_by_day_aggregate = {}

        repo = db.Repository.get_by_repo_name(repo_name)

        if repo is None:

            return True

        repo = repo.scm_instance

        repo_size = repo.count()

        # return if repo have no revisions

        if repo_size < 1:

            lock.release()

            return True

        skip_date_limit = True

        parse_limit = int(config.get('commit_parse_limit'))

        last_rev = None

        last_cs = None

        timegetter = itemgetter('time')

        dbrepo = DBS.query(db.Repository) \

            .filter(db.Repository.repo_name == repo_name).scalar()

        cur_stats = DBS.query(db.Statistics) \

            .filter(db.Statistics.repository == dbrepo).scalar()

        if cur_stats is not None:

            last_rev = cur_stats.stat_on_revision

        if last_rev == repo.get_changeset().revision and repo_size > 1:

            # pass silently without any work if we're not on first revision or

            # current state of parsing revision(from db marker) is the

            # last revision

            lock.release()

            return True

        if cur_stats:

            commits_by_day_aggregate = OrderedDict(ext_json.loads(

                                        cur_stats.commit_activity_combined))

            co_day_auth_aggr = ext_json.loads(cur_stats.commit_activity)

        log.debug('starting parsing %s', parse_limit)

        last_rev = last_rev + 1 if last_rev and last_rev >= 0 else 0

        log.debug('Getting revisions from %s to %s',

             last_rev, last_rev + parse_limit

        )

        for cs in repo[last_rev:last_rev + parse_limit]:

            log.debug('parsing %s', cs)

            last_cs = cs  # remember last parsed changeset

            tt = cs.date.timetuple()

            k = mktime(tt[:3] + (0, 0, 0, 0, 0, 0))

            if akc(cs.author) in co_day_auth_aggr:

                try:

            DBS.rollback()

            lock.release()

            return False

        # final release

        lock.release()

        # execute another task if celery is enabled

        if len(repo.revisions) > 1 and kallithea.CELERY_APP and recurse_limit > 0:

            get_commits_stats(repo_name, ts_min_y, ts_max_y, recurse_limit - 1)

        elif recurse_limit <= 0:

            log.debug('Not recursing - limit has been reached')

        else:

            log.debug('Not recursing')

    except celerylib.LockHeld:

        log.info('Task with key %s already running', lockkey)

        return 'Task with key %s already running' % lockkey

@celerylib.task

@celerylib.dbsession

def send_email(recipients, subject, body='', html_body='', headers=None, from_name=None):

    """

    Sends an email with defined parameters from the .ini files.

    :param recipients: list of recipients, if this is None, the defined email

        address from field 'email_to' and all admins is used instead

    :param subject: subject of the mail

    :param body: plain text body of the mail

    :param html_body: html version of body

    :param headers: dictionary of prepopulated e-mail headers

    :param from_name: full name to be used as sender of this mail - often a

    .full_name_or_username value

    """

    assert isinstance(recipients, list), recipients

    if headers is None:

        headers = {}

    else:

        # do not modify the original headers object passed by the caller

        headers = headers.copy()

    email_config = config

    email_prefix = email_config.get('email_prefix', '')

    if email_prefix:

        subject = "%s %s" % (email_prefix, subject)

    if not recipients:

        # if recipients are not defined we send to email_config + all admins

        recipients = [u.email for u in db.User.query()

                      .filter(db.User.admin == True).all()]

        if email_config.get('email_to') is not None:

            recipients += email_config.get('email_to').split(',')

        # If there are still no recipients, there are no admins and no address

        # configured in email_to, so return.

        if not recipients:

            log.error("No recipients specified and no fallback available.")

            return False

        log.warning("No recipients specified for '%s' - sending to admins %s", subject, ' '.join(recipients))

    # SMTP sender

    app_email_from = email_config.get('app_email_from', 'Kallithea')

    # 'From' header

    if from_name is not None:

        # set From header based on from_name but with a generic e-mail address

        # In case app_email_from is in "Some Name <e-mail>" format, we first

        # extract the e-mail address.

        envelope_addr = author_email(app_email_from)

        headers['From'] = '"%s" <%s>' % (

            email.utils.quote('%s (no-reply)' % from_name),

            envelope_addr)

    smtp_server = email_config.get('smtp_server')

    smtp_port = email_config.get('smtp_port')

    smtp_use_tls = asbool(email_config.get('smtp_use_tls'))

    smtp_use_ssl = asbool(email_config.get('smtp_use_ssl'))

    smtp_auth = email_config.get('smtp_auth')  # undocumented - overrule automatic choice of auth mechanism

    smtp_username = email_config.get('smtp_username')

    smtp_password = email_config.get('smtp_password')

    logmsg = ("Mail details:\n"

              "recipients: %s\n"

              "headers: %s\n"

              "subject: %s\n"

              "body:\n%s\n"

              "html:\n%s\n"

              % (' '.join(recipients), headers, subject, body, html_body))

    if smtp_server:

        log.debug("Sending e-mail. " + logmsg)

    else:

        log.error("SMTP mail server not configured - cannot send e-mail.")

        log.warning(logmsg)

        return False

    try:

    except:

        log.error('Mail sending failed')

        log.error(traceback.format_exc())

        return False

    return True

@celerylib.task

@celerylib.dbsession

def create_repo(form_data, cur_user):

    DBS = celerylib.get_session()

    cur_user = db.User.guess_instance(cur_user)

    owner = cur_user

    repo_name = form_data['repo_name']

    repo_name_full = form_data['repo_name_full']

    repo_type = form_data['repo_type']

    description = form_data['repo_description']

    private = form_data['repo_private']

    clone_uri = form_data.get('clone_uri')

    repo_group = form_data['repo_group']

    landing_rev = form_data['repo_landing_rev']

    copy_fork_permissions = form_data.get('copy_permissions')

    copy_group_permissions = form_data.get('repo_copy_permissions')

    fork_of = form_data.get('fork_parent_id')

    state = form_data.get('repo_state', db.Repository.STATE_PENDING)

    # repo creation defaults, private and repo_type are filled in form

    defs = db.Setting.get_default_repo_settings(strip_prefix=True)

    enable_statistics = defs.get('repo_enable_statistics')

    enable_downloads = defs.get('repo_enable_downloads')

    try:

        repo = RepoModel()._create_repo(

            repo_name=repo_name_full,

            repo_type=repo_type,

            description=description,

            owner=owner,

            private=private,

            clone_uri=clone_uri,

            repo_group=repo_group,

            landing_rev=landing_rev,

            fork_of=fork_of,

            copy_fork_permissions=copy_fork_permissions,

            copy_group_permissions=copy_group_permissions,

            enable_statistics=enable_statistics,

            enable_downloads=enable_downloads,

            state=state

        )

        action_logger(cur_user, 'user_created_repo',

                      form_data['repo_name_full'], '')

        DBS.commit()

        # now create this repo on Filesystem

        RepoModel()._create_filesystem_repo(

            repo_name=repo_name,

            repo_type=repo_type,

            repo_group=db.RepoGroup.guess_instance(repo_group),

            clone_uri=clone_uri,

        )

        repo = db.Repository.get_by_repo_name(repo_name_full)

        log_create_repository(repo.get_dict(), created_by=owner.username)

        # update repo changeset caches initially

        repo.update_changeset_cache()

        # set new created state

        repo.set_state(db.Repository.STATE_CREATED)

        DBS.commit()

    except Exception as e:

        log.warning('Exception %s occurred when forking repository, '

                    'doing cleanup...' % e)

        # rollback things manually !

        repo = db.Repository.get_by_repo_name(repo_name_full)

        if repo:

            db.Repository.delete(repo.repo_id)

            DBS.commit()

            RepoModel()._delete_filesystem_repo(repo)

        raise

    return True

@celerylib.task

@celerylib.dbsession

def create_repo_fork(form_data, cur_user):

    """

    Creates a fork of repository using interval VCS methods

    :param form_data:

    :param cur_user:

    """

    DBS = celerylib.get_session()

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

import mock

import kallithea

from kallithea.model import db

from kallithea.tests import base

class smtplib_mock(object):

    @classmethod

        return smtplib_mock()

    def ehlo(self):

        pass

    def quit(self):

        pass

    def sendmail(self, sender, dest, msg):

        smtplib_mock.lastsender = sender

        smtplib_mock.lastdest = set(dest)

        smtplib_mock.lastmsg = msg

class TestMail(base.TestController):

    def test_send_mail_trivial(self):

        mailserver = 'smtp.mailserver.org'

        recipients = ['rcpt1', 'rcpt2']

        envelope_from = 'noreply@mailserver.org'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body)

        assert smtplib_mock.lastdest == set(recipients)

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: %s' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_no_recipients(self):

        mailserver = 'smtp.mailserver.org'

        recipients = []

        envelope_from = 'noreply@mailserver.org'

        email_to = 'admin@mailserver.org'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

            'email_to': email_to,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body)

        assert smtplib_mock.lastdest == set([base.TEST_USER_ADMIN_EMAIL, email_to])

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: %s' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_no_recipients_multiple_email_to(self):

        mailserver = 'smtp.mailserver.org'

        recipients = []

        envelope_from = 'noreply@mailserver.org'

        email_to = 'admin@mailserver.org,admin2@example.com'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

            'email_to': email_to,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body)

        assert smtplib_mock.lastdest == set([base.TEST_USER_ADMIN_EMAIL] + email_to.split(','))

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: %s' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_no_recipients_no_email_to(self):

        mailserver = 'smtp.mailserver.org'

        recipients = []

        envelope_from = 'noreply@mailserver.org'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body)

        assert smtplib_mock.lastdest == set([base.TEST_USER_ADMIN_EMAIL])

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: %s' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_with_author(self):

        mailserver = 'smtp.mailserver.org'

        recipients = ['rcpt1', 'rcpt2']

        envelope_from = 'noreply@mailserver.org'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        author = db.User.get_by_username(base.TEST_USER_REGULAR_LOGIN)

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body, from_name=author.full_name_or_username)

        assert smtplib_mock.lastdest == set(recipients)

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: "Kallithea Admin (no-reply)" <%s>' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_with_author_full_mail_from(self):

        mailserver = 'smtp.mailserver.org'

        recipients = ['ræcpt1', 'receptor2 <rcpt2@example.com>', 'tæst@example.com', 'Tæst <test@example.com>']

        envelope_addr = 'noreply@mailserver.org'

        envelope_from = 'Söme Næme <%s>' % envelope_addr

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        author = db.User.get_by_username(base.TEST_USER_REGULAR_LOGIN)

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body, from_name=author.full_name_or_username)

        assert smtplib_mock.lastdest == set(recipients)

        assert smtplib_mock.lastsender == envelope_from

        assert 'From: "Kallithea Admin (no-reply)" <%s>' % envelope_addr in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

    def test_send_mail_extra_headers(self):

        mailserver = 'smtp.mailserver.org'

        recipients = ['rcpt1', 'rcpt2']

        envelope_from = 'noreply@mailserver.org'

        subject = 'subject'

        body = 'body'

        html_body = 'html_body'

        author = db.User(name='foo', lastname='(fubar) "baz"')

        headers = {'extra': 'yes'}

        config_mock = {

            'smtp_server': mailserver,

            'app_email_from': envelope_from,

        }

        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):

            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body,

                                                     from_name=author.full_name_or_username, headers=headers)

        assert smtplib_mock.lastdest == set(recipients)

        assert smtplib_mock.lastsender == envelope_from

        assert r'From: "foo (fubar) \"baz\" (no-reply)" <%s>' % envelope_from in smtplib_mock.lastmsg

        assert 'Subject: %s' % subject in smtplib_mock.lastmsg

        assert body in smtplib_mock.lastmsg

        assert html_body in smtplib_mock.lastmsg

        # verify that headers dict hasn't mutated by send_email

        assert headers == {'extra': 'yes'}