Feed controller for rhodecode

    :created_on: Apr 23, 2010

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# 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/>.

import logging

from pylons import url, response, tmpl_context as c

from pylons.i18n.translation import _

from rhodecode.lib import safe_unicode

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from rhodecode.lib.base import BaseRepoController

from webhelpers.feedgenerator import Atom1Feed, Rss201rev2Feed

log = logging.getLogger(__name__)

class FeedController(BaseRepoController):

    @LoginRequired(api_access=True)

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def __before__(self):

        super(FeedController, self).__before__()

        #common values for feeds

        self.description = _('Changes on %s repository')

        self.title = self.title = _('%s %s feed') % (c.rhodecode_name, '%s')

        self.language = 'en-us'

        self.ttl = "5"

        self.feed_nr = 10

    def __changes(self, cs):

        changes = []

        a = [safe_unicode(n.path) for n in cs.added]

        if a:

            changes.append('\nA ' + '\nA '.join(a))

        m = [safe_unicode(n.path) for n in cs.changed]

        if m:

            changes.append('\nM ' + '\nM '.join(m))

        d = [safe_unicode(n.path) for n in cs.removed]

        if d:

            changes.append('\nD ' + '\nD '.join(d))

        changes.append('</pre>')

        return ''.join(changes)

    def atom(self, repo_name):

        """Produce an atom-1.0 feed via feedgenerator module"""

                         link=url('summary_home', repo_name=repo_name,

                                  qualified=True),

                         description=self.description % repo_name,

                         language=self.language,

        desc_msg = []

            desc_msg.append('%s - %s<br/><pre>' % (cs.author, cs.date))

            desc_msg.append(self.__changes(cs))

                          link=url('changeset_home', repo_name=repo_name,

                                   revision=cs.raw_id, qualified=True),

                          author_name=cs.author,

                          description=''.join(desc_msg))

        response.content_type = feed.mime_type

        return feed.writeString('utf-8')

    def rss(self, repo_name):

        """Produce an rss2 feed via feedgenerator module"""

                         link=url('summary_home', repo_name=repo_name,

                                  qualified=True),

                         description=self.description % repo_name,

                         language=self.language,

        desc_msg = []

            desc_msg.append('%s - %s<br/><pre>' % (cs.author, cs.date))

            desc_msg.append(self.__changes(cs))

                          link=url('changeset_home', repo_name=repo_name,

                                   revision=cs.raw_id, qualified=True),

                          author_name=cs.author,

                          description=''.join(desc_msg),

                         )

        response.content_type = feed.mime_type

        return feed.writeString('utf-8')