# -*- 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, a web based repository management based on pylons

versioning implementation: http://www.python.org/dev/peps/pep-0386/

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: Apr 9, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, (C) 2014 Bradley M. Kuhn, and others.

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

"""

import sys

import platform

VERSION = (0, 2, 2)

BACKENDS = {

    'hg': 'Mercurial repository',

    'git': 'Git repository',

}

CELERY_ON = False

CELERY_EAGER = False

# link to config for pylons

CONFIG = {}

# Linked module for extensions

EXTENSIONS = {}

# BRAND controls internal references in database and config to the products

# own name.

#

# NOTE: If you want compatibility with a database that was originally created

#  for use with the RhodeCode software product, change BRAND to "rhodecode",

#  either by editing here or by creating a new file:

#  echo "BRAND = 'rhodecode'" > kallithea/brand.py

BRAND = "kallithea"

try:

    from kallithea.brand import BRAND

except ImportError:

    pass

# Prefix for the ui and settings table names

DB_PREFIX = (BRAND + "_") if BRAND != "kallithea" else ""

# Users.extern_type and .extern_name value for local users

EXTERN_TYPE_INTERNAL = BRAND if BRAND != 'kallithea' else 'internal'

# db_migrate_version.repository_id value, same as kallithea/lib/dbmigrate/migrate.cfg

DB_MIGRATIONS = BRAND + "_db_migrations"

try:

    from kallithea.lib import get_current_revision

    _rev = get_current_revision(quiet=True)

    if _rev and len(VERSION) > 3:

        VERSION += (_rev[0],)

except ImportError:

    pass

__version__ = ('.'.join((str(each) for each in VERSION[:3])))

__dbversion__ = 31  # defines current db version for migrations

__platform__ = platform.system()

__license__ = 'GPLv3'

__py_version__ = sys.version_info

__author__ = "Various Authors"

__url__ = 'https://kallithea-scm.org/'

is_windows = __platform__ in ['Windows']

is_unix = not is_windows

if len(VERSION) > 3:

    __version__ += '.'+VERSION[3]

    if len(VERSION) > 4:

        __version__ += VERSION[4]

    else:

        __version__ += '0'

# -*- 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/>.

"""

Binary scripts for Kallithea

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: Jun 03, 2012

:author: marcink

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

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

"""

# -*- 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/>.

"""

Api CLI client for Kallithea

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: Jun 3, 2012

:author: marcink

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

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

"""

from __future__ import with_statement

import sys

import argparse

from kallithea.bin.base import json, api_call, RcConf, FORMAT_JSON, FORMAT_PRETTY

def argparser(argv):

    usage = (

      "kallithea-api [-h] [--format=FORMAT] [--apikey=APIKEY] [--apihost=APIHOST] "

      "[--config=CONFIG] [--save-config] "

      "METHOD <key:val> <key2:val> ...\n"

      "Create config file: kallithea-api --apikey=<key> --apihost=http://your.kallithea.server --save-config"

    )

    parser = argparse.ArgumentParser(description='Kallithea API cli',

                                     usage=usage)

    ## config

    group = parser.add_argument_group('config')

    group.add_argument('--apikey', help='api access key')

    group.add_argument('--apihost', help='api host')

    group.add_argument('--config', help='config file')

    group.add_argument('--save-config', action='store_true', help='save the given config into a file')

    group = parser.add_argument_group('API')

    group.add_argument('method', metavar='METHOD', nargs='?', type=str, default=None,

            help='API method name to call followed by key:value attributes',

    )

    group.add_argument('--format', dest='format', type=str,

            help='output format default: `%s` can '

                 'be also `%s`' % (FORMAT_PRETTY, FORMAT_JSON),

            default=FORMAT_PRETTY

    )

    args, other = parser.parse_known_args()

    return parser, args, other

def main(argv=None):

    """

    Main execution function for cli

    :param argv:

    """

    if argv is None:

        argv = sys.argv

    conf = None

    parser, args, other = argparser(argv)

    api_credentials_given = (args.apikey and args.apihost)

    if args.save_config:

        if not api_credentials_given:

            raise parser.error('--save-config requires --apikey and --apihost')

        conf = RcConf(config_location=args.config,

                      autocreate=True, config={'apikey': args.apikey,

                                               'apihost': args.apihost})

        sys.exit()

    if not conf:

        conf = RcConf(config_location=args.config, autoload=True)

        if not conf:

            if not api_credentials_given:

                parser.error('Could not find config file and missing '

                             '--apikey or --apihost in params')

    apikey = args.apikey or conf['apikey']

    apihost = args.apihost or conf['apihost']

    method = args.method

    # if we don't have method here it's an error

    if not method:

        parser.error('Please specify method name')

    try:

        margs = dict(map(lambda s: s.split(':', 1), other))

    except ValueError:

        sys.stderr.write('Error parsing arguments \n')

        sys.exit()

    if args.format == FORMAT_PRETTY:

        print 'Calling method %s => %s' % (method, apihost)

    json_resp = api_call(apikey, apihost, method, **margs)

    error_prefix = ''

    if json_resp['error']:

        error_prefix = 'ERROR:'

        json_data = json_resp['error']

    else:

        json_data = json_resp['result']

    if args.format == FORMAT_JSON:

        print json.dumps(json_data)

    elif args.format == FORMAT_PRETTY:

        print 'Server response \n%s%s' % (

            error_prefix, json.dumps(json_data, indent=4, sort_keys=True)

        )

    return 0

if __name__ == '__main__':

    sys.exit(main(sys.argv))

# -*- 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/>.

"""

Repositories backup manager, it allows to backups all

repositories and send it to backup server using RSA key via ssh.

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: Feb 28, 2010

:author: marcink

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

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

"""

import os

import sys

import logging

import tarfile

import datetime

import subprocess

logging.basicConfig(level=logging.DEBUG,

                    format="%(asctime)s %(levelname)-5.5s %(message)s")

class BackupManager(object):

    def __init__(self, repos_location, rsa_key, backup_server):

        today = datetime.datetime.now().weekday() + 1

        self.backup_file_name = "repos.%s.tar.gz" % today

        self.id_rsa_path = self.get_id_rsa(rsa_key)

        self.repos_path = self.get_repos_path(repos_location)

        self.backup_server = backup_server

        self.backup_file_path = '/tmp'

        logging.info('starting backup for %s', self.repos_path)

        logging.info('backup target %s', self.backup_file_path)

    def get_id_rsa(self, rsa_key):

        if not os.path.isfile(rsa_key):

            logging.error('Could not load id_rsa key file in %s', rsa_key)

            sys.exit()

        return rsa_key

    def get_repos_path(self, path):

        if not os.path.isdir(path):

            logging.error('Wrong location for repositories in %s', path)

            sys.exit()

        return path

    def backup_repos(self):

        bckp_file = os.path.join(self.backup_file_path, self.backup_file_name)

        tar = tarfile.open(bckp_file, "w:gz")

        for dir_name in os.listdir(self.repos_path):

            logging.info('backing up %s', dir_name)

            tar.add(os.path.join(self.repos_path, dir_name), dir_name)

        tar.close()

        logging.info('finished backup of mercurial repositories')

    def transfer_files(self):

        params = {

                  'id_rsa_key': self.id_rsa_path,

                  'backup_file': os.path.join(self.backup_file_path,

                                             self.backup_file_name),

                  'backup_server': self.backup_server

                  }

        cmd = ['scp', '-l', '40000', '-i', '%(id_rsa_key)s' % params,

               '%(backup_file)s' % params,

               '%(backup_server)s' % params]

        subprocess.call(cmd)

        logging.info('Transfered file %s to %s', self.backup_file_name, cmd[4])

    def rm_file(self):

        logging.info('Removing file %s', self.backup_file_name)

        os.remove(os.path.join(self.backup_file_path, self.backup_file_name))

if __name__ == "__main__":

    repo_location = '/home/repo_path'

    backup_server = 'root@192.168.1.100:/backups/mercurial'

    rsa_key = '/home/id_rsa'

    B_MANAGER = BackupManager(repo_location, rsa_key, backup_server)

    B_MANAGER.backup_repos()

    B_MANAGER.transfer_files()

    B_MANAGER.rm_file()

# -*- 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/>.

"""

LDAP sync script

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: Mar 06, 2013

:author: marcink

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

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

"""

import ldap

import urllib2

import uuid

from kallithea.lib.compat import json

from ConfigParser import ConfigParser

config = ConfigParser()

config.read('ldap_sync.conf')

class InvalidResponseIDError(Exception):

    """ Request and response don't have the same UUID. """

class ResponseError(Exception):

    """ Response has an error, something went wrong with request execution. """

class UserAlreadyInGroupError(Exception):

    """ User is already a member of the target group. """

class UserNotInGroupError(Exception):

    """ User is not a member of the target group. """

class API(object):

    def __init__(self, url, key):

        self.url = url

        self.key = key

    def get_api_data(self, uid, method, args):

        """Prepare dict for API post."""

        return {

            "id": uid,

            "api_key": self.key,

            "method": method,

            "args": args

        }

    def post(self, method, args):

        """Send a generic API post to Kallithea.

        This will generate the UUID for validation check after the

        response is returned. Handle errors and get the result back.

        """

        uid = str(uuid.uuid1())

        data = self.get_api_data(uid, method, args)

        data = json.dumps(data)

        headers = {'content-type': 'text/plain'}

        req = urllib2.Request(self.url, data, headers)

        response = urllib2.urlopen(req)

        response = json.load(response)

        if uid != response["id"]:

            raise InvalidResponseIDError("UUID does not match.")

        if response["error"] is not None:

            raise ResponseError(response["error"])

        return response["result"]

    def create_group(self, name, active=True):

        """Create the Kallithea user group."""

        args = {

            "group_name": name,

            "active": str(active)

        }

        self.post("create_user_group", args)

    def add_membership(self, group, username):

        """Add specific user to a group."""

        args = {

            "usersgroupid": group,

            "userid": username

        }

        result = self.post("add_user_to_user_group", args)

        if not result["success"]:

            raise UserAlreadyInGroupError("User %s already in group %s." %

                                          (username, group))

    def remove_membership(self, group, username):

        """Remove specific user from a group."""

        args = {

            "usersgroupid": group,

            "userid": username

        }

        result = self.post("remove_user_from_user_group", args)

        if not result["success"]:

            raise UserNotInGroupError("User %s not in group %s." %

                                      (username, group))

    def get_group_members(self, name):

        """Get the list of member usernames from a user group."""

        args = {"usersgroupid": name}

        members = self.post("get_user_group", args)['members']

        member_list = []

        for member in members:

            member_list.append(member["username"])

        return member_list

    def get_group(self, name):

        """Return group info."""

        args = {"usersgroupid": name}

        return self.post("get_user_group", args)

    def get_user(self, username):

        """Return user info."""

        args = {"userid": username}

        return self.post("get_user", args)

class LdapClient(object):

    def __init__(self, uri, user, key, base_dn):

        self.client = ldap.initialize(uri, trace_level=0)

        self.client.set_option(ldap.OPT_REFERRALS, 0)

        self.client.simple_bind(user, key)

        self.base_dn = base_dn

    def __del__(self):

        self.client.unbind()

    def get_groups(self):

        """Get all the groups in form of dict {group_name: group_info,...}."""

        searchFilter = "objectClass=groupOfUniqueNames"

        result = self.client.search_s(self.base_dn, ldap.SCOPE_SUBTREE,

                                      searchFilter)

        groups = {}

        for group in result:

            groups[group[1]['cn'][0]] = group[1]

        return groups

    def get_group_users(self, groups, group):

        """Returns all the users belonging to a single group.

        Based on the list of groups and memberships, returns all the

        users belonging to a single group, searching recursively.

        """

        users = []

        for member in groups[group]["uniqueMember"]:

            member = self.parse_member_string(member)

            if member[0] == "uid":

                users.append(member[1])

            elif member[0] == "cn":

                users += self.get_group_users(groups, member[1])

        return users

    def parse_member_string(self, member):

        """Parses the member string and returns a touple of type and name.

        Unique member can be either user or group. Users will have 'uid' as

        prefix while groups will have 'cn'.

        """

        member = member.split(",")[0]

        return member.split('=')

class LdapSync(object):

    def __init__(self):

        self.ldap_client = LdapClient(config.get("default", "ldap_uri"),

                                      config.get("default", "ldap_user"),

                                      config.get("default", "ldap_key"),

                                      config.get("default", "base_dn"))

        self.rhodocode_api = API(config.get("default", "api_url"),

                                          config.get("default", "api_key"))

    def update_groups_from_ldap(self):

        """Add all the groups from LDAP to Kallithea."""

        added = existing = 0

        groups = self.ldap_client.get_groups()

        for group in groups:

            try:

                self.kallithea_api.create_repo_group(group)

                added += 1

            except Exception:

                existing += 1

        return added, existing

    def update_memberships_from_ldap(self, group):

        """Update memberships based on the LDAP groups."""

        groups = self.ldap_client.get_groups()

        group_users = self.ldap_client.get_group_users(groups, group)

        # Delete memberships first from each group which are not part

        # of the group any more.

        members = self.kallithea_api.get_group_members(group)

        for member in members:

            if member not in group_users:

                try:

                    self.rhodocode_api.remove_membership(group,

                                                         member)

                except UserNotInGroupError:

                    pass

        # Add memberships.

        for member in group_users:

            try:

                self.kallithea_api.add_membership(group, member)

            except UserAlreadyInGroupError:

                # TODO: handle somehow maybe..

                pass

if __name__ == '__main__':

    sync = LdapSync()

    print sync.update_groups_from_ldap()

    for gr in sync.ldap_client.get_groups():

        # TODO: exception when user does not exist during add membership...

        # How should we handle this.. Either sync users as well at this step,

        # or just ignore those who don't exist. If we want the second case,

        # we need to find a way to recognize the right exception (we always get

        # ResponseError with no error code so maybe by return msg (?)

        sync.update_memberships_from_ldap(gr)

# -*- 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/>.

"""

gist controller for Kallithea

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: May 9, 2013

:author: marcink

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

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

"""

import time

import logging

import traceback

import formencode.htmlfill

from pylons import request, response, tmpl_context as c, url

from pylons.controllers.util import redirect

from pylons.i18n.translation import _

from kallithea.model.forms import GistForm

from kallithea.model.gist import GistModel

from kallithea.model.meta import Session

from kallithea.model.db import Gist, User

from kallithea.lib import helpers as h

from kallithea.lib.base import BaseController, render

from kallithea.lib.auth import LoginRequired, NotAnonymous

from kallithea.lib.utils import jsonify

from kallithea.lib.utils2 import safe_int, time_to_datetime

from kallithea.lib.helpers import Page

from webob.exc import HTTPNotFound, HTTPForbidden

from sqlalchemy.sql.expression import or_

from kallithea.lib.vcs.exceptions import VCSError, NodeNotChangedError

log = logging.getLogger(__name__)

class GistsController(BaseController):

    """REST Controller styled on the Atom Publishing Protocol"""

    def __load_defaults(self, extra_values=None):

        c.lifetime_values = [

            (str(-1), _('Forever')),

            (str(5), _('5 minutes')),

            (str(60), _('1 hour')),

            (str(60 * 24), _('1 day')),

            (str(60 * 24 * 30), _('1 month')),

        ]

        if extra_values:

            c.lifetime_values.append(extra_values)

        c.lifetime_options = [(c.lifetime_values, _("Lifetime"))]

    @LoginRequired()

    def index(self):

        """GET /admin/gists: All items in the collection"""

        # url('gists')

        not_default_user = c.authuser.username != User.DEFAULT_USER

        c.show_private = request.GET.get('private') and not_default_user

        c.show_public = request.GET.get('public') and not_default_user

        gists = Gist().query()\

            .filter(or_(Gist.gist_expires == -1, Gist.gist_expires >= time.time()))\

            .order_by(Gist.created_on.desc())

        # MY private

        if c.show_private and not c.show_public:

            gists = gists.filter(Gist.gist_type == Gist.GIST_PRIVATE)\

                             .filter(Gist.gist_owner == c.authuser.user_id)

        # MY public

        elif c.show_public and not c.show_private:

            gists = gists.filter(Gist.gist_type == Gist.GIST_PUBLIC)\

                             .filter(Gist.gist_owner == c.authuser.user_id)

        # MY public+private

        elif c.show_private and c.show_public:

            gists = gists.filter(or_(Gist.gist_type == Gist.GIST_PUBLIC,

                                     Gist.gist_type == Gist.GIST_PRIVATE))\

                             .filter(Gist.gist_owner == c.authuser.user_id)

        # default show ALL public gists

        if not c.show_public and not c.show_private:

            gists = gists.filter(Gist.gist_type == Gist.GIST_PUBLIC)

        c.gists = gists

        p = safe_int(request.GET.get('page', 1), 1)

        c.gists_pager = Page(c.gists, page=p, items_per_page=10)

        return render('admin/gists/index.html')

    @LoginRequired()

    @NotAnonymous()

    def create(self):

        """POST /admin/gists: Create a new item"""

        # url('gists')

        self.__load_defaults()

        gist_form = GistForm([x[0] for x in c.lifetime_values])()

        try:

            form_result = gist_form.to_python(dict(request.POST))

            #TODO: multiple files support, from the form

            filename = form_result['filename'] or Gist.DEFAULT_FILENAME

            nodes = {

                filename: {

                    'content': form_result['content'],

                    'lexer': form_result['mimetype']  # None is autodetect

                }

            }

            _public = form_result['public']

            gist_type = Gist.GIST_PUBLIC if _public else Gist.GIST_PRIVATE

            gist = GistModel().create(

                description=form_result['description'],

                owner=c.authuser.user_id,

                gist_mapping=nodes,

                gist_type=gist_type,

                lifetime=form_result['lifetime']

            )

            Session().commit()

            new_gist_id = gist.gist_access_id

        except formencode.Invalid as errors:

            defaults = errors.value

            return formencode.htmlfill.render(

                render('admin/gists/new.html'),

                defaults=defaults,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8",

                force_defaults=False)

        except Exception as e:

            log.error(traceback.format_exc())

            h.flash(_('Error occurred during gist creation'), category='error')

            return redirect(url('new_gist'))

        return redirect(url('gist', gist_id=new_gist_id))

    @LoginRequired()

    @NotAnonymous()

    def new(self, format='html'):

        """GET /admin/gists/new: Form to create a new item"""

        # url('new_gist')

        self.__load_defaults()

        return render('admin/gists/new.html')

    @LoginRequired()

    @NotAnonymous()

    def update(self, gist_id):

        """PUT /admin/gists/gist_id: Update an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="PUT" />

        # Or using helpers:

        #    h.form(url('gist', gist_id=ID),

        #           method='put')

        # url('gist', gist_id=ID)

    @LoginRequired()

    @NotAnonymous()

    def delete(self, gist_id):

        """DELETE /admin/gists/gist_id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('gist', gist_id=ID),

        #           method='delete')

        # url('gist', gist_id=ID)

        gist = GistModel().get_gist(gist_id)

        owner = gist.gist_owner == c.authuser.user_id

        if h.HasPermissionAny('hg.admin')() or owner:

            GistModel().delete(gist)

            Session().commit()

            h.flash(_('Deleted gist %s') % gist.gist_access_id, category='success')

        else:

            raise HTTPForbidden()

        return redirect(url('gists'))

    @LoginRequired()

    def show(self, gist_id, revision='tip', format='html', f_path=None):

        """GET /admin/gists/gist_id: Show a specific item"""

        # url('gist', gist_id=ID)

        c.gist = Gist.get_or_404(gist_id)

        #check if this gist is not expired

        if c.gist.gist_expires != -1:

            if time.time() > c.gist.gist_expires:

                log.error('Gist expired at %s',

                          time_to_datetime(c.gist.gist_expires))

                raise HTTPNotFound()

        try:

            c.file_changeset, c.files = GistModel().get_gist_files(gist_id,

                                                            revision=revision)

        except VCSError:

            log.error(traceback.format_exc())

            raise HTTPNotFound()

        if format == 'raw':

            content = '\n\n'.join([f.content for f in c.files if (f_path is None or f.path == f_path)])

            response.content_type = 'text/plain'

            return content

        return render('admin/gists/show.html')

    @LoginRequired()

    @NotAnonymous()

    def edit(self, gist_id, format='html'):

        """GET /admin/gists/gist_id/edit: Form to edit an existing item"""

        # url('edit_gist', gist_id=ID)

        c.gist = Gist.get_or_404(gist_id)

        #check if this gist is not expired

        if c.gist.gist_expires != -1:

            if time.time() > c.gist.gist_expires:

                log.error('Gist expired at %s',

                          time_to_datetime(c.gist.gist_expires))

                raise HTTPNotFound()

        try:

            c.file_changeset, c.files = GistModel().get_gist_files(gist_id)