controller='home', action='branch_tag_switcher')

    rmap.connect('bugtracker',

                 "http://bitbucket.org/marcinkuzminski/rhodecode/issues",

                 _static=True)

    rmap.connect('rst_help',

                 "http://docutils.sourceforge.net/docs/user/rst/quickref.html",

                 _static=True)

    rmap.connect('rhodecode_official', "http://rhodecode.org", _static=True)

    #ADMIN REPOSITORY REST ROUTES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/repos') as m:

        m.connect("repos", "/repos",

             action="create", conditions=dict(method=["POST"]))

        m.connect("repos", "/repos",

             action="index", conditions=dict(method=["GET"]))

        m.connect("formatted_repos", "/repos.{format}",

             action="index",

            conditions=dict(method=["GET"]))

        m.connect("new_repo", "/repos/new",

             action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_new_repo", "/repos/new.{format}",

             action="new", conditions=dict(method=["GET"]))

        m.connect("/repos/{repo_name:.*}",

             action="update", conditions=dict(method=["PUT"],

                                              function=check_repo))

        m.connect("/repos/{repo_name:.*}",

             action="delete", conditions=dict(method=["DELETE"],

                                              function=check_repo))

        m.connect("edit_repo", "/repos/{repo_name:.*}/edit",

             action="edit", conditions=dict(method=["GET"],

                                            function=check_repo))

        m.connect("formatted_edit_repo", "/repos/{repo_name:.*}.{format}/edit",

             action="edit", conditions=dict(method=["GET"],

                                            function=check_repo))

        m.connect("repo", "/repos/{repo_name:.*}",

             action="show", conditions=dict(method=["GET"],

                                            function=check_repo))

        m.connect("formatted_repo", "/repos/{repo_name:.*}.{format}",

             action="show", conditions=dict(method=["GET"],

                                            function=check_repo))

        #ajax delete repo perm user

        m.connect('delete_repo_user', "/repos_delete_user/{repo_name:.*}",

             action="delete_perm_user",

             conditions=dict(method=["DELETE"], function=check_repo))

        #ajax delete repo perm users_group

        m.connect('delete_repo_users_group',

                  "/repos_delete_users_group/{repo_name:.*}",

                  action="delete_perm_users_group",

                  conditions=dict(method=["DELETE"], function=check_repo))

        #settings actions

        m.connect('repo_stats', "/repos_stats/{repo_name:.*}",

                  action="repo_stats", conditions=dict(method=["DELETE"],

                                                       function=check_repo))

        m.connect('repo_cache', "/repos_cache/{repo_name:.*}",

                  action="repo_cache", conditions=dict(method=["DELETE"],

                                                       function=check_repo))

        m.connect('repo_public_journal', "/repos_public_journal/{repo_name:.*}",

                  action="repo_public_journal", conditions=dict(method=["PUT"],

                                                        function=check_repo))

        m.connect('repo_pull', "/repo_pull/{repo_name:.*}",

                  action="repo_pull", conditions=dict(method=["PUT"],

                                                      function=check_repo))

        m.connect('repo_as_fork', "/repo_as_fork/{repo_name:.*}",

                  action="repo_as_fork", conditions=dict(method=["PUT"],

                                                      function=check_repo))

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/repos_groups') as m:

        m.connect("repos_groups", "/repos_groups",

                  action="create", conditions=dict(method=["POST"]))

        m.connect("repos_groups", "/repos_groups",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("formatted_repos_groups", "/repos_groups.{format}",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("new_repos_group", "/repos_groups/new",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_new_repos_group", "/repos_groups/new.{format}",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("update_repos_group", "/repos_groups/{id}",

                  action="update", conditions=dict(method=["PUT"],

                                                   function=check_int))

        m.connect("delete_repos_group", "/repos_groups/{id}",

                  action="delete", conditions=dict(method=["DELETE"],

                                                   function=check_int))

        m.connect("edit_repos_group", "/repos_groups/{id}/edit",

                  action="edit", conditions=dict(method=["GET"],

                                                 function=check_int))

        m.connect("formatted_edit_repos_group",

                  "/repos_groups/{id}.{format}/edit",

                  action="edit", conditions=dict(method=["GET"],

                                                 function=check_int))

        m.connect("repos_group", "/repos_groups/{id}",

                  action="show", conditions=dict(method=["GET"],

                                                 function=check_int))

        m.connect("formatted_repos_group", "/repos_groups/{id}.{format}",

                  action="show", conditions=dict(method=["GET"],

                                                 function=check_int))

        # ajax delete repos group perm user

        m.connect('delete_repos_group_user_perm',

                  "/delete_repos_group_user_perm/{group_name:.*}",

             action="delete_repos_group_user_perm",

             conditions=dict(method=["DELETE"], function=check_group))

        # ajax delete repos group perm users_group

        m.connect('delete_repos_group_users_group_perm',

                  "/delete_repos_group_users_group_perm/{group_name:.*}",

                  action="delete_repos_group_users_group_perm",

                  conditions=dict(method=["DELETE"], function=check_group))

    #ADMIN USER REST ROUTES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/users') as m:

        m.connect("users", "/users",

                  action="create", conditions=dict(method=["POST"]))

        m.connect("users", "/users",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("formatted_users", "/users.{format}",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("new_user", "/users/new",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_new_user", "/users/new.{format}",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("update_user", "/users/{id}",

                  action="update", conditions=dict(method=["PUT"]))

        m.connect("delete_user", "/users/{id}",

                  action="delete", conditions=dict(method=["DELETE"]))

        m.connect("edit_user", "/users/{id}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("formatted_edit_user",

                  "/users/{id}.{format}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("user", "/users/{id}",

                  action="show", conditions=dict(method=["GET"]))

        m.connect("formatted_user", "/users/{id}.{format}",

                  action="show", conditions=dict(method=["GET"]))

        #EXTRAS USER ROUTES

        m.connect("user_perm", "/users_perm/{id}",

                  action="update_perm", conditions=dict(method=["PUT"]))

    #ADMIN USERS REST ROUTES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/users_groups') as m:

        m.connect("users_groups", "/users_groups",

                  action="create", conditions=dict(method=["POST"]))

        m.connect("users_groups", "/users_groups",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("formatted_users_groups", "/users_groups.{format}",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("new_users_group", "/users_groups/new",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_new_users_group", "/users_groups/new.{format}",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("update_users_group", "/users_groups/{id}",

                  action="update", conditions=dict(method=["PUT"]))

        m.connect("delete_users_group", "/users_groups/{id}",

                  action="delete", conditions=dict(method=["DELETE"]))

        m.connect("edit_users_group", "/users_groups/{id}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("formatted_edit_users_group",

                  "/users_groups/{id}.{format}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("users_group", "/users_groups/{id}",

                  action="show", conditions=dict(method=["GET"]))

        m.connect("formatted_users_group", "/users_groups/{id}.{format}",

                  action="show", conditions=dict(method=["GET"]))

        #EXTRAS USER ROUTES

        m.connect("users_group_perm", "/users_groups_perm/{id}",

                  action="update_perm", conditions=dict(method=["PUT"]))

    #ADMIN GROUP REST ROUTES

    rmap.resource('group', 'groups',

                  controller='admin/groups', path_prefix=ADMIN_PREFIX)

    #ADMIN PERMISSIONS REST ROUTES

    rmap.resource('permission', 'permissions',

                  controller='admin/permissions', path_prefix=ADMIN_PREFIX)

    ##ADMIN LDAP SETTINGS

    rmap.connect('ldap_settings', '%s/ldap' % ADMIN_PREFIX,

                 controller='admin/ldap_settings', action='ldap_settings',

                 conditions=dict(method=["POST"]))

    rmap.connect('ldap_home', '%s/ldap' % ADMIN_PREFIX,

                 controller='admin/ldap_settings')

    #ADMIN SETTINGS REST ROUTES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/settings') as m:

        m.connect("admin_settings", "/settings",

                  action="create", conditions=dict(method=["POST"]))

        m.connect("admin_settings", "/settings",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("formatted_admin_settings", "/settings.{format}",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("admin_new_setting", "/settings/new",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_admin_new_setting", "/settings/new.{format}",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("/settings/{setting_id}",

                  action="update", conditions=dict(method=["PUT"]))

        m.connect("/settings/{setting_id}",

                  action="delete", conditions=dict(method=["DELETE"]))

        m.connect("admin_edit_setting", "/settings/{setting_id}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("formatted_admin_edit_setting",

                  "/settings/{setting_id}.{format}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("admin_setting", "/settings/{setting_id}",

                  action="show", conditions=dict(method=["GET"]))

        m.connect("formatted_admin_setting", "/settings/{setting_id}.{format}",

                  action="show", conditions=dict(method=["GET"]))

        m.connect("admin_settings_my_account", "/my_account",

                  action="my_account", conditions=dict(method=["GET"]))

        m.connect("admin_settings_my_account_update", "/my_account_update",

                  action="my_account_update", conditions=dict(method=["PUT"]))

        m.connect("admin_settings_create_repository", "/create_repository",

                  action="create_repository", conditions=dict(method=["GET"]))

    #NOTIFICATION REST ROUTES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/notifications') as m:

        m.connect("notifications", "/notifications",

                  action="create", conditions=dict(method=["POST"]))

        m.connect("notifications", "/notifications",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("notifications_mark_all_read", "/notifications/mark_all_read",

                  action="mark_all_read", conditions=dict(method=["GET"]))

        m.connect("formatted_notifications", "/notifications.{format}",

                  action="index", conditions=dict(method=["GET"]))

        m.connect("new_notification", "/notifications/new",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("formatted_new_notification", "/notifications/new.{format}",

                  action="new", conditions=dict(method=["GET"]))

        m.connect("/notification/{notification_id}",

                  action="update", conditions=dict(method=["PUT"]))

        m.connect("/notification/{notification_id}",

                  action="delete", conditions=dict(method=["DELETE"]))

        m.connect("edit_notification", "/notification/{notification_id}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("formatted_edit_notification",

                  "/notification/{notification_id}.{format}/edit",

                  action="edit", conditions=dict(method=["GET"]))

        m.connect("notification", "/notification/{notification_id}",

                  action="show", conditions=dict(method=["GET"]))

        m.connect("formatted_notification", "/notifications/{notification_id}.{format}",

                  action="show", conditions=dict(method=["GET"]))

    #ADMIN MAIN PAGES

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='admin/admin') as m:

        m.connect('admin_home', '', action='index')

        m.connect('admin_add_repo', '/add_repo/{new_repo:[a-z0-9\. _-]*}',

                  action='add_repo')

    #==========================================================================

    # API V2

    #==========================================================================

    with rmap.submapper(path_prefix=ADMIN_PREFIX,

                        controller='api/api') as m:

        m.connect('api', '/api')

    #USER JOURNAL

    rmap.connect('journal', '%s/journal' % ADMIN_PREFIX, controller='journal')

    rmap.connect('public_journal', '%s/public_journal' % ADMIN_PREFIX,

                 controller='journal', action="public_journal")

    rmap.connect('public_journal_rss', '%s/public_journal_rss' % ADMIN_PREFIX,

                 controller='journal', action="public_journal_rss")

    rmap.connect('public_journal_atom',

                 '%s/public_journal_atom' % ADMIN_PREFIX, controller='journal',

                 action="public_journal_atom")

    rmap.connect('toggle_following', '%s/toggle_following' % ADMIN_PREFIX,

                 controller='journal', action='toggle_following',

                 conditions=dict(method=["POST"]))

    #SEARCH

    rmap.connect('search', '%s/search' % ADMIN_PREFIX, controller='search',)

    rmap.connect('search_repo', '%s/search/{search_repo:.*}' % ADMIN_PREFIX,

                  controller='search')

    #LOGIN/LOGOUT/REGISTER/SIGN IN

    rmap.connect('login_home', '%s/login' % ADMIN_PREFIX, controller='login')

    rmap.connect('logout_home', '%s/logout' % ADMIN_PREFIX, controller='login',

                 action='logout')

    rmap.connect('register', '%s/register' % ADMIN_PREFIX, controller='login',

                 action='register')

    rmap.connect('reset_password', '%s/password_reset' % ADMIN_PREFIX,

                 controller='login', action='password_reset')

    rmap.connect('reset_password_confirmation',

                 '%s/password_reset_confirmation' % ADMIN_PREFIX,

                 controller='login', action='password_reset_confirmation')

    #FEEDS

    rmap.connect('rss_feed_home', '/{repo_name:.*}/feed/rss',

                controller='feed', action='rss',

                conditions=dict(function=check_repo))

    rmap.connect('atom_feed_home', '/{repo_name:.*}/feed/atom',

                controller='feed', action='atom',

                conditions=dict(function=check_repo))

    #==========================================================================

    # REPOSITORY ROUTES

    #==========================================================================

    rmap.connect('summary_home', '/{repo_name:.*}',

                controller='summary',

                conditions=dict(function=check_repo))

    rmap.connect('repos_group_home', '/{group_name:.*}',

                controller='admin/repos_groups', action="show_by_name",

                conditions=dict(function=check_group))

    rmap.connect('changeset_home', '/{repo_name:.*}/changeset/{revision}',

                controller='changeset', revision='tip',

                conditions=dict(function=check_repo))

    rmap.connect('changeset_comment',

                 '/{repo_name:.*}/changeset/{revision}/comment',

                controller='changeset', revision='tip', action='comment',

                conditions=dict(function=check_repo))

    rmap.connect('changeset_comment_delete',

                 '/{repo_name:.*}/changeset/comment/{comment_id}/delete',

                controller='changeset', action='delete_comment',

                conditions=dict(function=check_repo, method=["DELETE"]))

    rmap.connect('raw_changeset_home',

                 '/{repo_name:.*}/raw-changeset/{revision}',

                 controller='changeset', action='raw_changeset',

                 revision='tip', conditions=dict(function=check_repo))

    rmap.connect('summary_home', '/{repo_name:.*}/summary',

                controller='summary', conditions=dict(function=check_repo))

    rmap.connect('shortlog_home', '/{repo_name:.*}/shortlog',

                controller='shortlog', conditions=dict(function=check_repo))

    rmap.connect('branches_home', '/{repo_name:.*}/branches',

                controller='branches', conditions=dict(function=check_repo))

    rmap.connect('tags_home', '/{repo_name:.*}/tags',

                controller='tags', conditions=dict(function=check_repo))

    rmap.connect('bookmarks_home', '/{repo_name:.*}/bookmarks',

                controller='bookmarks', conditions=dict(function=check_repo))

    rmap.connect('changelog_home', '/{repo_name:.*}/changelog',

                controller='changelog', conditions=dict(function=check_repo))

    rmap.connect('changelog_details', '/{repo_name:.*}/changelog_details/{cs}',

                controller='changelog', action='changelog_details',

                conditions=dict(function=check_repo))

    rmap.connect('files_home', '/{repo_name:.*}/files/{revision}/{f_path:.*}',

                controller='files', revision='tip', f_path='',

                conditions=dict(function=check_repo))

    rmap.connect('files_diff_home', '/{repo_name:.*}/diff/{f_path:.*}',

                controller='files', action='diff', revision='tip', f_path='',

                conditions=dict(function=check_repo))

    rmap.connect('files_rawfile_home',

                 '/{repo_name:.*}/rawfile/{revision}/{f_path:.*}',

                 controller='files', action='rawfile', revision='tip',

                 f_path='', conditions=dict(function=check_repo))

    rmap.connect('files_raw_home',

                 '/{repo_name:.*}/raw/{revision}/{f_path:.*}',

                 controller='files', action='raw', revision='tip', f_path='',

                 conditions=dict(function=check_repo))

    rmap.connect('files_annotate_home',

                 '/{repo_name:.*}/annotate/{revision}/{f_path:.*}',

    rmap.connect('files_edit_home',

                 '/{repo_name:.*}/edit/{revision}/{f_path:.*}',

                 controller='files', action='edit', revision='tip',

                 f_path='', conditions=dict(function=check_repo))

    rmap.connect('files_add_home',

                 '/{repo_name:.*}/add/{revision}/{f_path:.*}',

                 controller='files', action='add', revision='tip',

                 f_path='', conditions=dict(function=check_repo))

    rmap.connect('files_archive_home', '/{repo_name:.*}/archive/{fname}',

                controller='files', action='archivefile',

                conditions=dict(function=check_repo))

    rmap.connect('files_nodelist_home',

                 '/{repo_name:.*}/nodelist/{revision}/{f_path:.*}',

                controller='files', action='nodelist',

                conditions=dict(function=check_repo))

    rmap.connect('repo_settings_delete', '/{repo_name:.*}/settings',

                controller='settings', action="delete",

                conditions=dict(method=["DELETE"], function=check_repo))

    rmap.connect('repo_settings_update', '/{repo_name:.*}/settings',

                controller='settings', action="update",

                conditions=dict(method=["PUT"], function=check_repo))

    rmap.connect('repo_settings_home', '/{repo_name:.*}/settings',

                controller='settings', action='index',

                conditions=dict(function=check_repo))

    rmap.connect('repo_fork_create_home', '/{repo_name:.*}/fork',

                controller='forks', action='fork_create',

                conditions=dict(function=check_repo, method=["POST"]))

    rmap.connect('repo_fork_home', '/{repo_name:.*}/fork',

                controller='forks', action='fork',

                conditions=dict(function=check_repo))

    rmap.connect('repo_forks_home', '/{repo_name:.*}/forks',

                 controller='forks', action='forks',

                 conditions=dict(function=check_repo))

    rmap.connect('repo_followers_home', '/{repo_name:.*}/followers',

                 controller='followers', action='followers',

                 conditions=dict(function=check_repo))

    return rmap

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

"""

    rhodecode.controllers.files

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

    Files controller for RhodeCode

    :created_on: Apr 21, 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 os

import logging

import traceback

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

from pylons.i18n.translation import _

from pylons.controllers.util import redirect

from pylons.decorators import jsonify

from rhodecode.lib import diffs

from rhodecode.lib import helpers as h

from rhodecode.lib.compat import OrderedDict

from rhodecode.lib.utils2 import convert_line_endings, detect_mode, safe_str

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from rhodecode.lib.base import BaseRepoController, render

from rhodecode.lib.utils import EmptyChangeset

from rhodecode.lib.vcs.conf import settings

from rhodecode.lib.vcs.exceptions import RepositoryError, \

    ChangesetDoesNotExistError, EmptyRepositoryError, \

    ImproperArchiveTypeError, VCSError, NodeAlreadyExistsError

from rhodecode.lib.vcs.nodes import FileNode

from rhodecode.model.repo import RepoModel

from rhodecode.model.scm import ScmModel

from rhodecode.controllers.changeset import anchor_url, _ignorews_url,\

    _context_url, get_line_ctx, get_ignore_ws

log = logging.getLogger(__name__)

class FilesController(BaseRepoController):

    @LoginRequired()

    def __before__(self):

        super(FilesController, self).__before__()

        c.cut_off_limit = self.cut_off_limit

    def __get_cs_or_redirect(self, rev, repo_name, redirect_after=True):

        """

        Safe way to get changeset if error occur it redirects to tip with

        proper message

        :param rev: revision to fetch

        :param repo_name: repo name to redirect after

        """

        try:

            return c.rhodecode_repo.get_changeset(rev)

        except EmptyRepositoryError, e:

            if not redirect_after:

                return None

            url_ = url('files_add_home',

                       repo_name=c.repo_name,

                       revision=0, f_path='')

            add_new = '<a href="%s">[%s]</a>' % (url_, _('add new'))

            h.flash(h.literal(_('There are no files yet %s' % add_new)),

                    category='warning')

            redirect(h.url('summary_home', repo_name=repo_name))

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name, revision='tip'))

    def __get_filenode_or_redirect(self, repo_name, cs, path):

        """

        Returns file_node, if error occurs or given path is directory,

        it'll redirect to top level path

        :param repo_name: repo_name

        :param cs: given changeset

        :param path: path to lookup

        """

        try:

            file_node = cs.get_node(path)

            if file_node.is_dir():

                raise RepositoryError('given path is a directory')

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name,

                           revision=cs.raw_id))

        return file_node

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

                                   'repository.admin')

        # redirect to given revision from form if given

        post_revision = request.POST.get('at_rev', None)

        if post_revision:

            cs = self.__get_cs_or_redirect(post_revision, repo_name)

            redirect(url('files_home', repo_name=c.repo_name,

                         revision=cs.raw_id, f_path=f_path))

        c.changeset = self.__get_cs_or_redirect(revision, repo_name)

        c.branch = request.GET.get('branch', None)

        c.f_path = f_path

        cur_rev = c.changeset.revision

        # prev link

        try:

            prev_rev = c.rhodecode_repo.get_changeset(cur_rev).prev(c.branch)

            c.url_prev = url('files_home', repo_name=c.repo_name,

                         revision=prev_rev.raw_id, f_path=f_path)

            if c.branch:

                c.url_prev += '?branch=%s' % c.branch

        except (ChangesetDoesNotExistError, VCSError):

            c.url_prev = '#'

        # next link

        try:

            next_rev = c.rhodecode_repo.get_changeset(cur_rev).next(c.branch)

            c.url_next = url('files_home', repo_name=c.repo_name,

                     revision=next_rev.raw_id, f_path=f_path)

            if c.branch:

                c.url_next += '?branch=%s' % c.branch

        except (ChangesetDoesNotExistError, VCSError):

            c.url_next = '#'

        # files or dirs

        try:

            c.file = c.changeset.get_node(f_path)

            if c.file.is_file():

                c.file_history = self._get_node_history(c.changeset, f_path)

            else:

                c.file_history = []

        except RepositoryError, e:

            h.flash(str(e), category='warning')

            redirect(h.url('files_home', repo_name=repo_name,

                           revision=revision))

        return render('files/files.html')

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

                                   'repository.admin')

    def rawfile(self, repo_name, revision, f_path):

        cs = self.__get_cs_or_redirect(revision, repo_name)

        file_node = self.__get_filenode_or_redirect(repo_name, cs, f_path)

        response.content_disposition = 'attachment; filename=%s' % \

            safe_str(f_path.split(os.sep)[-1])

        response.content_type = file_node.mimetype

        return file_node.content

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

                                   'repository.admin')

    def raw(self, repo_name, revision, f_path):

        cs = self.__get_cs_or_redirect(revision, repo_name)

        file_node = self.__get_filenode_or_redirect(repo_name, cs, f_path)

        raw_mimetype_mapping = {

            # map original mimetype to a mimetype used for "show as raw"

            # you can also provide a content-disposition to override the

            # default "attachment" disposition.

            # orig_type: (new_type, new_dispo)

            # show images inline:

            'image/x-icon': ('image/x-icon', 'inline'),

            'image/png': ('image/png', 'inline'),

            'image/gif': ('image/gif', 'inline'),

            'image/jpeg': ('image/jpeg', 'inline'),

            'image/svg+xml': ('image/svg+xml', 'inline'),

        }

        mimetype = file_node.mimetype

        try:

            mimetype, dispo = raw_mimetype_mapping[mimetype]

        except KeyError:

            # we don't know anything special about this, handle it safely

            if file_node.is_binary:

                # do same as download raw for binary files

                mimetype, dispo = 'application/octet-stream', 'attachment'

            else:

                # do not just use the original mimetype, but force text/plain,

                # otherwise it would serve text/html and that might be unsafe.

                # Note: underlying vcs library fakes text/plain mimetype if the

                # mimetype can not be determined and it thinks it is not

                # binary.This might lead to erroneous text display in some

                # cases, but helps in other cases, like with text files

                # without extension.

                mimetype, dispo = 'text/plain', 'inline'

        if dispo == 'attachment':

            dispo = 'attachment; filename=%s' % \

                        safe_str(f_path.split(os.sep)[-1])

        response.content_disposition = dispo

        response.content_type = mimetype

        return file_node.content

    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')

    def edit(self, repo_name, revision, f_path):

        r_post = request.POST

        c.cs = self.__get_cs_or_redirect(revision, repo_name)

        c.file = self.__get_filenode_or_redirect(repo_name, c.cs, f_path)

        if c.file.is_binary:

            return redirect(url('files_home', repo_name=c.repo_name,

                         revision=c.cs.raw_id, f_path=f_path))

        c.f_path = f_path

        if r_post:

            old_content = c.file.content

            sl = old_content.splitlines(1)

            first_line = sl[0] if sl else ''

            # modes:  0 - Unix, 1 - Mac, 2 - DOS

            mode = detect_mode(first_line, 0)

            content = convert_line_endings(r_post.get('content'), mode)

            message = r_post.get('message') or (_('Edited %s via RhodeCode')

                                                % (f_path))

            author = self.rhodecode_user.full_contact

            if content == old_content:

                h.flash(_('No changes'),

                    category='warning')

                return redirect(url('changeset_home', repo_name=c.repo_name,

                                    revision='tip'))

            try:

                self.scm_model.commit_change(repo=c.rhodecode_repo,

                                             repo_name=repo_name, cs=c.cs,

                                             user=self.rhodecode_user,

                                             author=author, message=message,

                                             content=content, f_path=f_path)

                h.flash(_('Successfully committed to %s' % f_path),

                        category='success')

            except Exception:

                log.error(traceback.format_exc())

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

            return redirect(url('changeset_home',

                                repo_name=c.repo_name, revision='tip'))

        return render('files/files_edit.html')

    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')

    def add(self, repo_name, revision, f_path):

        r_post = request.POST

        c.cs = self.__get_cs_or_redirect(revision, repo_name,

                                         redirect_after=False)

        if c.cs is None:

            c.cs = EmptyChangeset(alias=c.rhodecode_repo.alias)

        c.f_path = f_path

        if r_post:

            unix_mode = 0

            content = convert_line_endings(r_post.get('content'), unix_mode)

            message = r_post.get('message') or (_('Added %s via RhodeCode')

                                                % (f_path))

            location = r_post.get('location')

            filename = r_post.get('filename')

            file_obj = r_post.get('upload_file', None)

            if file_obj is not None and hasattr(file_obj, 'filename'):

                filename = file_obj.filename

                content = file_obj.file

            node_path = os.path.join(location, filename)

            author = self.rhodecode_user.full_contact

            if not content:

                h.flash(_('No content'), category='warning')

                return redirect(url('changeset_home', repo_name=c.repo_name,

                                    revision='tip'))

            if not filename:

                h.flash(_('No filename'), category='warning')

                return redirect(url('changeset_home', repo_name=c.repo_name,

                                    revision='tip'))

            try:

                self.scm_model.create_node(repo=c.rhodecode_repo,

                                             repo_name=repo_name, cs=c.cs,

                                             user=self.rhodecode_user,

                                             author=author, message=message,

                                             content=content, f_path=node_path)

                h.flash(_('Successfully committed to %s' % node_path),

                        category='success')

            except NodeAlreadyExistsError, e:

                h.flash(_(e), category='error')

            except Exception:

                log.error(traceback.format_exc())

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

            return redirect(url('changeset_home',

                                repo_name=c.repo_name, revision='tip'))

        return render('files/files_add.html')

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

                                   'repository.admin')

    def archivefile(self, repo_name, fname):

        fileformat = None

        revision = None

        ext = None

        subrepos = request.GET.get('subrepos') == 'true'

        for a_type, ext_data in settings.ARCHIVE_SPECS.items():

            archive_spec = fname.split(ext_data[1])

            if len(archive_spec) == 2 and archive_spec[1] == '':

                fileformat = a_type or ext_data[1]

                revision = archive_spec[0]

                ext = ext_data[1]

        try:

            dbrepo = RepoModel().get_by_repo_name(repo_name)

            if dbrepo.enable_downloads is False:

                return _('downloads disabled')

            if c.rhodecode_repo.alias == 'hg':

                # patch and reset hooks section of UI config to not run any

                # hooks on fetching archives with subrepos

                for k, v in c.rhodecode_repo._repo.ui.configitems('hooks'):

                    c.rhodecode_repo._repo.ui.setconfig('hooks', k, None)

            cs = c.rhodecode_repo.get_changeset(revision)

            content_type = settings.ARCHIVE_SPECS[fileformat][0]

        except ChangesetDoesNotExistError:

            return _('Unknown revision %s') % revision

        except EmptyRepositoryError:

            return _('Empty repository')

        except (ImproperArchiveTypeError, KeyError):

            return _('Unknown archive type')

        response.content_type = content_type

        response.content_disposition = 'attachment; filename=%s-%s%s' \

            % (repo_name, revision, ext)

        import tempfile

        archive = tempfile.mkstemp()[1]

        t = open(archive, 'wb')

        cs.fill_archive(stream=t, kind=fileformat, subrepos=subrepos)

        def get_chunked_archive(archive):

            stream = open(archive, 'rb')

            while True:

                data = stream.read(4096)

                if not data:

                    os.remove(archive)

                    break

                yield data

        return get_chunked_archive(archive)

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

                                   'repository.admin')

    def diff(self, repo_name, f_path):

        ignore_whitespace = request.GET.get('ignorews') == '1'

        line_context = request.GET.get('context', 3)

        diff1 = request.GET.get('diff1', '')

        diff2 = request.GET.get('diff2', '')

        c.action = request.GET.get('diff')

        c.no_changes = diff1 == diff2

        c.f_path = f_path

        c.big_diff = False

        c.anchor_url = anchor_url

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        c.changes = OrderedDict()

        c.changes[diff2] = []

        try:

            if diff1 not in ['', None, 'None', '0' * 12, '0' * 40]:

                c.changeset_1 = c.rhodecode_repo.get_changeset(diff1)

                node1 = c.changeset_1.get_node(f_path)

            else:

                c.changeset_1 = EmptyChangeset(repo=c.rhodecode_repo)

                node1 = FileNode('.', '', changeset=c.changeset_1)

            if diff2 not in ['', None, 'None', '0' * 12, '0' * 40]:

                c.changeset_2 = c.rhodecode_repo.get_changeset(diff2)

                node2 = c.changeset_2.get_node(f_path)

            else:

                c.changeset_2 = EmptyChangeset(repo=c.rhodecode_repo)

                node2 = FileNode('.', '', changeset=c.changeset_2)

        except RepositoryError:

            return redirect(url('files_home', repo_name=c.repo_name,

                                f_path=f_path))

        if c.action == 'download':

            _diff = diffs.get_gitdiff(node1, node2,

                                      ignore_whitespace=ignore_whitespace,

                                      context=line_context)

            diff = diffs.DiffProcessor(_diff, format='gitdiff')

            diff_name = '%s_vs_%s.diff' % (diff1, diff2)

            response.content_type = 'text/plain'