data[1] = _repo_name

        except:

            log.debug('Failed to extract repo_name from id %s' % (

                      traceback.format_exc()

                      )

            )

        return '/'.join(data)

    def _invalidate_cache(self, repo_name):

        """

        Set's cache for this repository for invalidation on next access

        :param repo_name: full repo name, also a cache key

        """

        invalidate_cache('get_repo_cached_%s' % repo_name)

    def _check_permission(self, action, user, repo_name, ip_addr=None):

        """

        Checks permissions using action (push/pull) user and repository

        name

        :param action: push or pull action

        :param user: user instance

        :param repo_name: repository name

        """

        #check IP

        authuser = AuthUser(user_id=user.user_id, ip_addr=ip_addr)

        if not authuser.ip_allowed:

            return False

        else:

            log.info('Access for IP:%s allowed' % (ip_addr))

        if action == 'push':

            if not HasPermissionAnyMiddleware('repository.write',

                                              'repository.admin')(user,

                                                                  repo_name):

                return False

        else:

            #any other action need at least read permission

            if not HasPermissionAnyMiddleware('repository.read',

                                              'repository.write',

                                              'repository.admin')(user,

                                                                  repo_name):

                return False

        return True

    def _get_ip_addr(self, environ):

        return _get_ip_addr(environ)

    def _check_ssl(self, environ, start_response):

        """

        Checks the SSL check flag and returns False if SSL is not present

        and required True otherwise

        """

        org_proto = environ['wsgi._org_proto']

        #check if we have SSL required  ! if not it's a bad request !

        require_ssl = str2bool(RhodeCodeUi.get_by_key('push_ssl').ui_value)

        if require_ssl and org_proto == 'http':

            log.debug('proto is %s and SSL is required BAD REQUEST !'

                      % org_proto)

            return False

        return True

    def _check_locking_state(self, environ, action, repo, user_id):

        """

        Checks locking on this repository, if locking is enabled and lock is

        present returns a tuple of make_lock, locked, locked_by.

        make_lock can have 3 states None (do nothing) True, make lock

        False release lock, This value is later propagated to hooks, which

        do the locking. Think about this as signals passed to hooks what to do.

        """

        locked = False  # defines that locked error should be thrown to user

        make_lock = None

        repo = Repository.get_by_repo_name(repo)

        user = User.get(user_id)

        # this is kind of hacky, but due to how mercurial handles client-server

        # server see all operation on changeset; bookmarks, phases and

        # obsolescence marker in different transaction, we don't want to check

        # locking on those

        obsolete_call = environ['QUERY_STRING'] in ['cmd=listkeys',]

        locked_by = repo.locked

        if repo and repo.enable_locking and not obsolete_call:

            if action == 'push':

                #check if it's already locked !, if it is compare users

                user_id, _date = repo.locked

                if user.user_id == user_id:

                    log.debug('Got push from user %s, now unlocking' % (user))

                    # unlock if we have push from user who locked

                    make_lock = False

                else:

                    # we're not the same user who locked, ban with 423 !

                    locked = True

            if action == 'pull':

                if repo.locked[0] and repo.locked[1]:

                    locked = True

                else:

                    log.debug('Setting lock on repo %s by %s' % (repo, user))

                    make_lock = True

        else:

            log.debug('Repository %s do not have locking enabled' % (repo))

        log.debug('FINAL locking values make_lock:%s,locked:%s,locked_by:%s'

                  % (make_lock, locked, locked_by))

        return make_lock, locked, locked_by

    def __call__(self, environ, start_response):

        start = time.time()

        try:

            return self._handle_request(environ, start_response)

        finally:

            log = logging.getLogger('rhodecode.' + self.__class__.__name__)

            log.debug('Request time: %.3fs' % (time.time() - start))

            meta.Session.remove()

class BaseController(WSGIController):

    def __before__(self):

        """

        __before__ is called before controller methods and after __call__

        """

        c.rhodecode_version = __version__

        c.rhodecode_instanceid = config.get('instance_id')

        c.rhodecode_name = config.get('rhodecode_title')

        c.use_gravatar = str2bool(config.get('use_gravatar'))

        c.ga_code = config.get('rhodecode_ga_code')

        # Visual options

        c.visual = AttributeDict({})

        rc_config = RhodeCodeSetting.get_app_settings()

        c.visual.show_public_icon = str2bool(rc_config.get('rhodecode_show_public_icon'))

        c.visual.show_private_icon = str2bool(rc_config.get('rhodecode_show_private_icon'))

        c.visual.stylify_metatags = str2bool(rc_config.get('rhodecode_stylify_metatags'))

        c.visual.lightweight_dashboard = str2bool(rc_config.get('rhodecode_lightweight_dashboard'))

        c.visual.lightweight_dashboard_items = safe_int(config.get('dashboard_items', 100))

        c.visual.repository_fields = str2bool(rc_config.get('rhodecode_repository_fields'))

        c.repo_name = get_repo_slug(request)

        c.backends = BACKENDS.keys()

        c.unread_notifications = NotificationModel()\

                        .get_unread_cnt_for_user(c.rhodecode_user.user_id)

        self.cut_off_limit = int(config.get('cut_off_limit'))

        self.sa = meta.Session

        self.scm_model = ScmModel(self.sa)

    def __call__(self, environ, start_response):

        """Invoke the Controller"""

        # WSGIController.__call__ dispatches to the Controller method

        # the request is routed to. This routing information is

        # available in environ['pylons.routes_dict']

        start = time.time()

        try:

            self.ip_addr = _get_ip_addr(environ)

            # make sure that we update permissions each time we call controller

            api_key = request.GET.get('api_key')

            cookie_store = CookieStoreWrapper(session.get('rhodecode_user'))

            user_id = cookie_store.get('user_id', None)

            username = get_container_username(environ, config)

            auth_user = AuthUser(user_id, api_key, username, self.ip_addr)

            request.user = auth_user

            self.rhodecode_user = c.rhodecode_user = auth_user

            if not self.rhodecode_user.is_authenticated and \

                       self.rhodecode_user.user_id is not None:

                self.rhodecode_user.set_authenticated(

                    cookie_store.get('is_authenticated')

                )

            log.info('IP: %s User: %s accessed %s' % (

               self.ip_addr, auth_user, safe_unicode(_get_access_path(environ)))

            )

            return WSGIController.__call__(self, environ, start_response)

        finally:

            log.info('IP: %s Request to %s time: %.3fs' % (

                _get_ip_addr(environ),

                safe_unicode(_get_access_path(environ)), time.time() - start)

            )

            meta.Session.remove()

class BaseRepoController(BaseController):

    """

    Base class for controllers responsible for loading all needed data for

    repository loaded items are

    c.rhodecode_repo: instance of scm repository

    c.rhodecode_db_repo: instance of db

    c.repository_followers: number of followers

    c.repository_forks: number of forks

    """

    def __before__(self):

        super(BaseRepoController, self).__before__()

        if c.repo_name:

            dbr = c.rhodecode_db_repo = Repository.get_by_repo_name(c.repo_name)

            c.rhodecode_repo = c.rhodecode_db_repo.scm_instance

            # update last change according to VCS data

            dbr.update_changeset_cache(dbr.get_changeset())

            if c.rhodecode_repo is None:

                log.error('%s this repository is present in database but it '

                          'cannot be created as an scm instance', c.repo_name)

                redirect(url('home'))

            # some globals counter for menu

            c.repository_followers = self.scm_model.get_followers(dbr)

            c.repository_forks = self.scm_model.get_forks(dbr)

            c.repository_pull_requests = self.scm_model.get_pull_requests(dbr)

            .replace('[', '<span class="journal_highlight">')\

            .replace(']', '</span>')

    action_params_func = lambda: ""

    if callable(action_str[1]):

        action_params_func = action_str[1]

    def action_parser_icon():

        action = user_log.action

        action_params = None

        x = action.split(':')

        if len(x) > 1:

            action, action_params = x

        tmpl = """<img src="%s%s" alt="%s"/>"""

        ico = action_map.get(action, ['', '', ''])[2]

        return literal(tmpl % ((url('/images/icons/')), ico, action))

    # returned callbacks we need to call to get

    return [lambda: literal(action), action_params_func, action_parser_icon]

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

# PERMS

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

from rhodecode.lib.auth import HasPermissionAny, HasPermissionAll, \

HasRepoPermissionAny, HasRepoPermissionAll, HasReposGroupPermissionAll, \

HasReposGroupPermissionAny

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

# GRAVATAR URL

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

def gravatar_url(email_address, size=30):

    from pylons import url  # doh, we need to re-import url to mock it later

    _def = 'anonymous@rhodecode.org'

    use_gravatar = str2bool(config['app_conf'].get('use_gravatar'))

    email_address = email_address or _def

    if (not use_gravatar or not email_address or email_address == _def):

        f = lambda a, l: min(l, key=lambda x: abs(x - a))

        return url("/images/user%s.png" % f(size, [14, 16, 20, 24, 30]))

    if use_gravatar and config['app_conf'].get('alternative_gravatar_url'):

        tmpl = config['app_conf'].get('alternative_gravatar_url', '')

        parsed_url = urlparse.urlparse(url.current(qualified=True))

        tmpl = tmpl.replace('{email}', email_address)\

                   .replace('{md5email}', hashlib.md5(email_address.lower()).hexdigest()) \

                   .replace('{netloc}', parsed_url.netloc)\

                   .replace('{scheme}', parsed_url.scheme)\

                   .replace('{size}', str(size))

        return tmpl

    ssl_enabled = 'https' == request.environ.get('wsgi.url_scheme')

    default = 'identicon'

    baseurl_nossl = "http://www.gravatar.com/avatar/"

    baseurl_ssl = "https://secure.gravatar.com/avatar/"

    baseurl = baseurl_ssl if ssl_enabled else baseurl_nossl

    if isinstance(email_address, unicode):

        #hashlib crashes on unicode items

        email_address = safe_str(email_address)

    # construct the url

    gravatar_url = baseurl + hashlib.md5(email_address.lower()).hexdigest() + "?"

    gravatar_url += urllib.urlencode({'d': default, 's': str(size)})

    return gravatar_url

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

# REPO PAGER, PAGER FOR REPOSITORY

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

class RepoPage(Page):

    def __init__(self, collection, page=1, items_per_page=20,

                 item_count=None, url=None, **kwargs):

        """Create a "RepoPage" instance. special pager for paging

        repository

        """

        self._url_generator = url

        # Safe the kwargs class-wide so they can be used in the pager() method

        self.kwargs = kwargs

        # Save a reference to the collection

        self.original_collection = collection

        self.collection = collection

        # The self.page is the number of the current page.

        # The first page has the number 1!

        try:

            self.page = int(page)  # make it int() if we get it as a string

        except (ValueError, TypeError):

            self.page = 1

        self.items_per_page = items_per_page

        # Unless the user tells us how many items the collections has

        # we calculate that ourselves.

        if item_count is not None:

            self.item_count = item_count

        else:

            self.item_count = len(self.collection)

        # Compute the number of the first and last available page

        if self.item_count > 0:

            self.first_page = 1

            self.page_count = int(math.ceil(float(self.item_count) /

                                            self.items_per_page))

            self.last_page = self.first_page + self.page_count - 1

            # Make sure that the requested page number is the range of

            # valid pages

            if self.page > self.last_page:

                self.page = self.last_page

            elif self.page < self.first_page:

                self.page = self.first_page

            # Note: the number of items on this page can be less than

            #       items_per_page if the last page is not full

            self.first_item = max(0, (self.item_count) - (self.page *

                                                          items_per_page))

            self.last_item = ((self.item_count - 1) - items_per_page *

                              (self.page - 1))

            self.items = list(self.collection[self.first_item:self.last_item + 1])

            # Links to previous and next page

            if self.page > self.first_page:

                self.previous_page = self.page - 1

            else:

                self.previous_page = None

            if self.page < self.last_page:

                self.next_page = self.page + 1

            else:

                self.next_page = None

        # No items available

        else:

            self.first_page = None

            self.page_count = 0

            self.last_page = None

            self.first_item = None

            self.last_item = None

            self.previous_page = None

            self.next_page = None

            self.items = []

        # This is a subclass of the 'list' type. Initialise the list now.

        list.__init__(self, reversed(self.items))

def changed_tooltip(nodes):

    """

    Generates a html string for changed nodes in changeset page.

    It limits the output to 30 entries

    :param nodes: LazyNodesGenerator

    """

    if nodes:

        pref = ': <br/> '

        suf = ''

        if len(nodes) > 30:

            suf = '<br/>' + _(' and %s more') % (len(nodes) - 30)

        return literal(pref + '<br/> '.join([safe_unicode(x.path)

                                             for x in nodes[:30]]) + suf)

    else:

        return ': ' + _('No Files')

def repo_link(groups_and_repos, last_url=None):

    """

    Makes a breadcrumbs link to repo within a group

    joins » on each group to create a fancy link

    ex::

        group >> subgroup >> repo

    :param groups_and_repos:

    :param last_url:

    """

    groups, repo_name = groups_and_repos

    last_link = link_to(repo_name, last_url) if last_url else repo_name

    if not groups:

        if last_url:

    else:

        def make_link(group):

            return link_to(group.name,

                           url('repos_group_home', group_name=group.group_name))

def fancy_file_stats(stats):

    """

    Displays a fancy two colored bar for number of added/deleted

    lines of code on file

    :param stats: two element list of added/deleted lines of code

    """

    def cgen(l_type, a_v, d_v):

        mapping = {'tr': 'top-right-rounded-corner-mid',

                   'tl': 'top-left-rounded-corner-mid',

                   'br': 'bottom-right-rounded-corner-mid',

                   'bl': 'bottom-left-rounded-corner-mid'}

        map_getter = lambda x: mapping[x]

        if l_type == 'a' and d_v:

            #case when added and deleted are present

            return ' '.join(map(map_getter, ['tl', 'bl']))

        if l_type == 'a' and not d_v:

            return ' '.join(map(map_getter, ['tr', 'br', 'tl', 'bl']))

        if l_type == 'd' and a_v:

            return ' '.join(map(map_getter, ['tr', 'br']))

        if l_type == 'd' and not a_v:

            return ' '.join(map(map_getter, ['tr', 'br', 'tl', 'bl']))

    a, d = stats[0], stats[1]

    width = 100

    if a == 'b':

        #binary mode

        b_d = '<div class="bin%s %s" style="width:100%%">%s</div>' % (d, cgen('a', a_v='', d_v=0), 'bin')

        b_a = '<div class="bin1" style="width:0%%">%s</div>' % ('bin')

        return literal('<div style="width:%spx">%s%s</div>' % (width, b_a, b_d))

    t = stats[0] + stats[1]

    unit = float(width) / (t or 1)

    # needs > 9% of width to be visible or 0 to be hidden

    a_p = max(9, unit * a) if a > 0 else 0

    d_p = max(9, unit * d) if d > 0 else 0

    p_sum = a_p + d_p

    if p_sum > width:

        #adjust the percentage to be == 100% since we adjusted to 9

        if a_p > d_p:

            a_p = a_p - (p_sum - width)

        else:

            d_p = d_p - (p_sum - width)

    a_v = a if a > 0 else ''

    d_v = d if d > 0 else ''

    d_a = '<div class="added %s" style="width:%s%%">%s</div>' % (

        cgen('a', a_v, d_v), a_p, a_v

    )

    d_d = '<div class="deleted %s" style="width:%s%%">%s</div>' % (

        cgen('d', a_v, d_v), d_p, d_v

    )

    return literal('<div style="width:%spx">%s%s</div>' % (width, d_a, d_d))

def urlify_text(text_):

    """

    Extrac urls from text and make html links out of them

    :param text_:

    """

    url_pat = re.compile(r'''(http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]'''

                         '''|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)''')

    def url_func(match_obj):

        url_full = match_obj.groups()[0]

        return '<a href="%(url)s">%(url)s</a>' % ({'url': url_full})

    return literal(url_pat.sub(url_func, text_))

def urlify_changesets(text_, repository):

    """

    Extract revision ids from changeset and make link from them

    :param text_:

    :param repository: repo name to build the URL with

    """

    from pylons import url  # doh, we need to re-import url to mock it later

    URL_PAT = re.compile(r'(?:^|\s)([0-9a-fA-F]{12,40})(?:$|\s)')

    def url_func(match_obj):

        rev = match_obj.groups()[0]

        pref = ''

        suf = ''

        if match_obj.group().startswith(' '):

            pref = ' '

        if match_obj.group().endswith(' '):

            suf = ' '

        tmpl = (

        '%(pref)s<a class="%(cls)s" href="%(url)s">'

        '%(rev)s'

        '</a>'

        '%(suf)s'

        )

        return tmpl % {

         'pref': pref,

         'cls': 'revision-link',

         'url': url('changeset_home', repo_name=repository, revision=rev),

         'rev': rev,

         'suf': suf

        }

    newtext = URL_PAT.sub(url_func, text_)

    return newtext

def urlify_commit(text_, repository=None, link_=None):

    """

    Parses given text message and makes proper links.

    issues are linked to given issue-server, and rest is a changeset link

    if link_ is given, in other case it's a plain text

    :param text_:

    :param repository:

    :param link_: changeset link

    """

    import traceback

    from pylons import url  # doh, we need to re-import url to mock it later

    def escaper(string):

        return string.replace('<', '&lt;').replace('>', '&gt;')

    def linkify_others(t, l):

        urls = re.compile(r'(\<a.*?\<\/a\>)',)

        links = []

        for e in urls.split(t):

            if not urls.match(e):

                links.append('<a class="message-link" href="%s">%s</a>' % (l, e))

            else:

                links.append(e)

        return ''.join(links)

    # urlify changesets - extrac revisions and make link out of them

    newtext = urlify_changesets(escaper(text_), repository)

    # extract http/https links and make them real urls

    newtext = urlify_text(newtext)

    try:

        from rhodecode import CONFIG

        conf = CONFIG

        # allow multiple issue servers to be used

        valid_indices = [

            x.group(1)

            for x in map(lambda x: re.match(r'issue_pat(.*)', x), conf.keys())

            if x and 'issue_server_link%s' % x.group(1) in conf

            and 'issue_prefix%s' % x.group(1) in conf

        ]

        log.debug('found issue server suffixes `%s` during valuation of: %s'

                  % (','.join(valid_indices), newtext))

        for pattern_index in valid_indices:

            ISSUE_PATTERN = conf.get('issue_pat%s' % pattern_index)

            ISSUE_SERVER_LNK = conf.get('issue_server_link%s' % pattern_index)

            ISSUE_PREFIX = conf.get('issue_prefix%s' % pattern_index)

            log.debug('pattern suffix `%s` PAT:%s SERVER_LINK:%s PREFIX:%s'

                      % (pattern_index, ISSUE_PATTERN, ISSUE_SERVER_LNK,

                         ISSUE_PREFIX))

            URL_PAT = re.compile(r'%s' % ISSUE_PATTERN)

            def url_func(match_obj):

                pref = ''

                if match_obj.group().startswith(' '):

                    pref = ' '

                issue_id = ''.join(match_obj.groups())

                tmpl = (

                '%(pref)s<a class="%(cls)s" href="%(url)s">'

                '%(issue-prefix)s%(id-repr)s'

                '</a>'

                )

                url = ISSUE_SERVER_LNK.replace('{id}', issue_id)

                if repository:

                    url = url.replace('{repo}', repository)