utils.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 30 Jun 2015 10:06:00 +0200
changeset 10914 fed8bd56f223
parent 10691 af266f27c4d5
child 10933 830f1ea52789
permissions -rw-r--r--
[repository] deprecate the extid2eid based multi-sources API This API is cumbersome and lead to obfuscated code because of the callback mecanism implied when some entity has to be created. Since we dropped the "true" multi-source, this mecanism is not needed anymore and one should prefer to use the dataimport API inside its parser instead. Notice the cwxml parser will trigger the deprecation warning, it should not be used anymore in favor of ad-hoc parsers.
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# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""Some utilities for CubicWeb server/clients."""
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from __future__ import division
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__docformat__ = "restructuredtext en"
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import decimal
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import datetime
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import random
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import re
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import json
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from operator import itemgetter
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from inspect import getargspec
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from itertools import repeat
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from uuid import uuid4
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from warnings import warn
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from threading import Lock
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from logging import getLogger
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from six import text_type
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from six.moves.urllib.parse import urlparse
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ca11228a5268 import cleanup
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from logilab.mtconverter import xml_escape
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from logilab.common.deprecation import deprecated
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from logilab.common.date import ustrftime
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_MARKER = object()
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# initialize random seed from current time
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random.seed()
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def admincnx(appid):
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    from cubicweb.cwconfig import CubicWebConfiguration
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    from cubicweb.server.repository import Repository
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    from cubicweb.server.utils import TasksManager
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    config = CubicWebConfiguration.config_for(appid)
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    login = config.default_admin_config['login']
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    password = config.default_admin_config['password']
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    repo = Repository(config, TasksManager())
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    session = repo.new_session(login, password=password)
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    return session.new_cnx()
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def make_uid(key=None):
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    """Return a unique identifier string.
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    if specified, `key` is used to prefix the generated uid so it can be used
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    for instance as a DOM id or as sql table name.
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    See uuid.uuid4 documentation for the shape of the generated identifier, but
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    this is basically a 32 bits hexadecimal string.
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    """
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    if key is None:
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        return uuid4().hex
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    return str(key) + uuid4().hex
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def support_args(callable, *argnames):
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    """return true if the callable support given argument names"""
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    if isinstance(callable, type):
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        callable = callable.__init__
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    argspec = getargspec(callable)
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    if argspec[2]:
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        return True
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    for argname in argnames:
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        if argname not in argspec[0]:
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            return False
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    return True
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class wrap_on_write(object):
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    """ Sometimes it is convenient to NOT write some container element
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    if it happens that there is nothing to be written within,
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    but this cannot be known beforehand.
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    Hence one can do this:
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    .. sourcecode:: python
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       with wrap_on_write(w, '<div class="foo">', '</div>') as wow:
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           component.render_stuff(wow)
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    """
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    def __init__(self, w, tag, closetag=None):
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        self.written = False
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        self.tag = text_type(tag)
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        self.closetag = closetag
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        self.w = w
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    def __enter__(self):
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        return self
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    def __call__(self, data):
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        if self.written is False:
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            self.w(self.tag)
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            self.written = True
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        self.w(data)
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    def __exit__(self, exctype, value, traceback):
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        if self.written is True:
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            if self.closetag:
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                self.w(text_type(self.closetag))
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            else:
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                self.w(self.tag.replace('<', '</', 1))
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0
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# use networkX instead ?
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# http://networkx.lanl.gov/reference/algorithms.traversal.html#module-networkx.algorithms.traversal.astar
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def transitive_closure_of(entity, rtype, _seen=None):
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    """return transitive closure *for the subgraph starting from the given
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    entity* (eg 'parent' entities are not included in the results)
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    """
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    if _seen is None:
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        _seen = set()
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    _seen.add(entity.eid)
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    yield entity
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    for child in getattr(entity, rtype):
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        if child.eid in _seen:
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            continue
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        for subchild in transitive_closure_of(child, rtype, _seen):
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            yield subchild
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class SizeConstrainedList(list):
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    """simple list that makes sure the list does not get bigger than a given
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    size.
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    when the list is full and a new element is added, the first element of the
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    list is removed before appending the new one
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    >>> l = SizeConstrainedList(2)
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    >>> l.append(1)
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    >>> l.append(2)
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    >>> l
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    [1, 2]
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    >>> l.append(3)
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    >>> l
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    [2, 3]
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    """
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    def __init__(self, maxsize):
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        self.maxsize = maxsize
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    def append(self, element):
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        if len(self) == self.maxsize:
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            del self[0]
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        super(SizeConstrainedList, self).append(element)
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    def extend(self, sequence):
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        super(SizeConstrainedList, self).extend(sequence)
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        keepafter = len(self) - self.maxsize
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        if keepafter > 0:
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            del self[:keepafter]
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    __iadd__ = extend
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class RepeatList(object):
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    """fake a list with the same element in each row"""
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    __slots__ = ('_size', '_item')
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    def __init__(self, size, item):
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        self._size = size
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        self._item = item
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    def __repr__(self):
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        return '<cubicweb.utils.RepeatList at %s item=%s size=%s>' % (
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            id(self), self._item, self._size)
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    def __len__(self):
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        return self._size
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    def __iter__(self):
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        return repeat(self._item, self._size)
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    def __getitem__(self, index):
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        if isinstance(index, slice):
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            # XXX could be more efficient, but do we bother?
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            return ([self._item] * self._size)[index]
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        return self._item
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    def __delitem__(self, idc):
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        assert self._size > 0
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        self._size -= 1
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    def __add__(self, other):
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        if isinstance(other, RepeatList):
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            if other._item == self._item:
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                return RepeatList(self._size + other._size, self._item)
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            return ([self._item] * self._size) + other[:]
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        return ([self._item] * self._size) + other
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    def __radd__(self, other):
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        if isinstance(other, RepeatList):
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            if other._item == self._item:
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                return RepeatList(self._size + other._size, self._item)
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            return other[:] + ([self._item] * self._size)
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        return other[:] + ([self._item] * self._size)
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    def __eq__(self, other):
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        if isinstance(other, RepeatList):
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            return other._size == self._size and other._item == self._item
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        return self[:] == other
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    def __ne__(self, other):
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        return not (self == other)
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    def __hash__(self):
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        raise NotImplementedError
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    def pop(self, i):
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        self._size -= 1
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0
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class UStringIO(list):
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    """a file wrapper which automatically encode unicode string to an encoding
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    specifed in the constructor
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    """
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    def __init__(self, tracewrites=False, *args, **kwargs):
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        self.tracewrites = tracewrites
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        super(UStringIO, self).__init__(*args, **kwargs)
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    def __bool__(self):
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        return True
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    __nonzero__ = __bool__
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0
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    def write(self, value):
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        assert isinstance(value, text_type), u"unicode required not %s : %s"\
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                                     % (type(value).__name__, repr(value))
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        if self.tracewrites:
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            from traceback import format_stack
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            stack = format_stack(None)[:-1]
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            escaped_stack = xml_escape(json_dumps(u'\n'.join(stack)))
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            escaped_html = xml_escape(value).replace('\n', '<br/>\n')
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            tpl = u'<span onclick="alert(%s)">%s</span>'
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            value = tpl % (escaped_stack, escaped_html)
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        self.append(value)
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0
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    def getvalue(self):
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        return u''.join(self)
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    def __repr__(self):
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        return '<%s at %#x>' % (self.__class__.__name__, id(self))
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class HTMLHead(UStringIO):
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    """wraps HTML header's stream
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    Request objects use a HTMLHead instance to ease adding of
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    javascripts and stylesheets
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    """
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    js_unload_code = u'''if (typeof(pageDataUnloaded) == 'undefined') {
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    jQuery(window).unload(unloadPageData);
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    pageDataUnloaded = true;
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}'''
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    script_opening = u'<script type="text/javascript">\n'
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    script_closing = u'\n</script>'
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    def __init__(self, req, *args, **kwargs):
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        super(HTMLHead, self).__init__(*args, **kwargs)
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        self.jsvars = []
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        self.jsfiles = []
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        self.cssfiles = []
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        self.ie_cssfiles = []
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        self.post_inlined_scripts = []
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        self.pagedata_unload = False
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        self._cw = req
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        self.datadir_url = req.datadir_url
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    def add_raw(self, rawheader):
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        self.write(rawheader)
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    def define_var(self, var, value, override=True):
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        """adds a javascript var declaration / assginment in the header
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        :param var: the variable name
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        :param value: the variable value (as a raw python value,
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                      it will be jsonized later)
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        :param override: if False, don't set the variable value if the variable
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                         is already defined. Default is True.
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        """
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        self.jsvars.append( (var, value, override) )
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    def add_post_inline_script(self, content):
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        self.post_inlined_scripts.append(content)
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    def add_onload(self, jscode):
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        self.add_post_inline_script(u"""$(cw).one('server-response', function(event) {
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%s});""" % jscode)
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0
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    def add_js(self, jsfile):
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        """adds `jsfile` to the list of javascripts used in the webpage
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        This function checks if the file has already been added
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        :param jsfile: the script's URL
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        """
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        if jsfile not in self.jsfiles:
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            self.jsfiles.append(jsfile)
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    def add_css(self, cssfile, media='all'):
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        """adds `cssfile` to the list of javascripts used in the webpage
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        This function checks if the file has already been added
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        :param cssfile: the stylesheet's URL
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        """
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        if (cssfile, media) not in self.cssfiles:
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            self.cssfiles.append( (cssfile, media) )
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    def add_ie_css(self, cssfile, media='all', iespec=u'[if lt IE 8]'):
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        """registers some IE specific CSS"""
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        if (cssfile, media, iespec) not in self.ie_cssfiles:
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            self.ie_cssfiles.append( (cssfile, media, iespec) )
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    def add_unload_pagedata(self):
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        """registers onunload callback to clean page data on server"""
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        if not self.pagedata_unload:
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            self.post_inlined_scripts.append(self.js_unload_code)
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            self.pagedata_unload = True
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    def concat_urls(self, urls):
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        """concatenates urls into one url usable by Apache mod_concat
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        This method returns the url without modifying it if there is only
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        one element in the list
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        :param urls: list of local urls/filenames to concatenate
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        """
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        if len(urls) == 1:
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            return urls[0]
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        len_prefix = len(self.datadir_url)
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        concated = u','.join(url[len_prefix:] for url in urls)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   339
        return (u'%s??%s' % (self.datadir_url, concated))
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   340
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   341
    def group_urls(self, urls_spec):
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   342
        """parses urls_spec in order to generate concatenated urls
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   343
        for js and css includes
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   344
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   345
        This method checks if the file is local and if it shares options
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   346
        with direct neighbors
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   347
        :param urls_spec: entire list of urls/filenames to inspect
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   348
        """
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   349
        concatable = []
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   350
        prev_islocal = False
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   351
        prev_key = None
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   352
        for url, key in urls_spec:
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   353
            islocal = url.startswith(self.datadir_url)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   354
            if concatable and (islocal != prev_islocal or key != prev_key):
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   355
                yield (self.concat_urls(concatable), prev_key)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   356
                del concatable[:]
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   357
            if not islocal:
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   358
                yield (url, key)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   359
            else:
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   360
                concatable.append(url)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   361
            prev_islocal = islocal
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   362
            prev_key = key
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   363
        if concatable:
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   364
            yield (self.concat_urls(concatable), prev_key)
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   365
acd7f0e9f276 [etwist] Generates apache's mod_concat-like urls for js and css
Quentin Roquefort <roquefort.quentin@gmail.com>
parents: 7187
diff changeset
   366
643
616191014b8b [jsoncontroller] reorganize _html_exec (used by replacePageChunk) to output required css and js scripts
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 28
diff changeset
   367
    def getvalue(self, skiphead=False):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   368
        """reimplement getvalue to provide a consistent (and somewhat browser
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
        optimzed cf. http://stevesouders.com/cuzillion) order in external
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   370
        resources declaration
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   371
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   372
        w = self.write
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   373
        # 1/ variable declaration if any
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   374
        if self.jsvars:
10166
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   375
            if skiphead:
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   376
                w(u'<cubicweb:script>')
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   377
            else:
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   378
                w(self.script_opening)
3838
9cc134372bf8 [web] safety belt to avoid overriding pageid with loadxhtml()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3789
diff changeset
   379
            for var, value, override in self.jsvars:
5389
809d3b5b3d31 [python2.6] careful: json-py provides a json package. We don't want that.
Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 5377
diff changeset
   380
                vardecl = u'%s = %s;' % (var, json.dumps(value))
3838
9cc134372bf8 [web] safety belt to avoid overriding pageid with loadxhtml()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3789
diff changeset
   381
                if not override:
9cc134372bf8 [web] safety belt to avoid overriding pageid with loadxhtml()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3789
diff changeset
   382
                    vardecl = (u'if (typeof %s == "undefined") {%s}' %
9cc134372bf8 [web] safety belt to avoid overriding pageid with loadxhtml()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3789
diff changeset
   383
                               (var, vardecl))
9cc134372bf8 [web] safety belt to avoid overriding pageid with loadxhtml()
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3789
diff changeset
   384
                w(vardecl + u'\n')
10166
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   385
            if skiphead:
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   386
                w(u'</cubicweb:script>')
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   387
            else:
0095961df66c [utils] Fix define_var in ajax context (closes #4881301)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10118
diff changeset
   388
                w(self.script_closing)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
        # 2/ css files
7762
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   390
        ie_cssfiles = ((x, (y, z)) for x, y, z in self.ie_cssfiles)
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   391
        if self.datadir_url and self._cw.vreg.config['concat-resources']:
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   392
            cssfiles = self.group_urls(self.cssfiles)
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   393
            ie_cssfiles = self.group_urls(ie_cssfiles)
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   394
            jsfiles = (x for x, _ in self.group_urls((x, None) for x in self.jsfiles))
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   395
        else:
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   396
            cssfiles = self.cssfiles
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   397
            jsfiles = self.jsfiles
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   398
        for cssfile, media in cssfiles:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   399
            w(u'<link rel="stylesheet" type="text/css" media="%s" href="%s"/>\n' %
3091
c3d73cecb29e [html-head] escape js and css urls
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2678
diff changeset
   400
              (media, xml_escape(cssfile)))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   401
        # 3/ ie css if necessary
7762
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   402
        if self.ie_cssfiles: # use self.ie_cssfiles because `ie_cssfiles` is a genexp
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   403
            for cssfile, (media, iespec) in ie_cssfiles:
4860
cedb6afdb7da [web] fix #736332: iespec functionality for add_css
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 4859
diff changeset
   404
                w(u'<!--%s>\n' % iespec)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
                w(u'<link rel="stylesheet" type="text/css" media="%s" href="%s"/>\n' %
3091
c3d73cecb29e [html-head] escape js and css urls
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 2678
diff changeset
   406
                  (media, xml_escape(cssfile)))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   407
            w(u'<![endif]--> \n')
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   408
        # 4/ js files
7762
a3f9ba4d44eb [web] add option to make resources-concat optional (implements #1910615)
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7660
diff changeset
   409
        for jsfile in jsfiles:
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   410
            if skiphead:
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   411
                # Don't insert <script> tags directly as they would be
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   412
                # interpreted directly by some browsers (e.g. IE).
9523
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   413
                # Use <cubicweb:script> tags instead and let
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   414
                # `loadAjaxHtmlHead` handle the script insertion / execution.
9523
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   415
                w(u'<cubicweb:script src="%s"></cubicweb:script>\n' %
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   416
                  xml_escape(jsfile))
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   417
                # FIXME: a probably better implementation might be to add
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   418
                #        JS or CSS urls in a JS list that loadAjaxHtmlHead
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   419
                #        would iterate on and postprocess:
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   420
                #            cw._ajax_js_scripts.push('myscript.js')
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   421
                #        Then, in loadAjaxHtmlHead, do something like:
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   422
                #            jQuery.each(cw._ajax_js_script, jQuery.getScript)
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   423
            else:
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   424
                w(u'<script type="text/javascript" src="%s"></script>\n' %
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   425
                  xml_escape(jsfile))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   426
        # 5/ post inlined scripts (i.e. scripts depending on other JS files)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   427
        if self.post_inlined_scripts:
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   428
            if skiphead:
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   429
                for script in self.post_inlined_scripts:
9523
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   430
                    w(u'<cubicweb:script>')
7660
a1506b5306cc closes #1826543: error on some ajax_replace_url call
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7649
diff changeset
   431
                    w(xml_escape(script))
9523
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   432
                    w(u'</cubicweb:script>')
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   433
            else:
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   434
                w(self.script_opening)
7649
ede740bd7077 [ajax, IE] rewrite some code to avoid duplicated evaluation with IE
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7575
diff changeset
   435
                w(u'\n\n'.join(self.post_inlined_scripts))
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   436
                w(self.script_closing)
10090
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   437
        # at the start of this function, the parent UStringIO may already have
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   438
        # data in it, so we can't w(u'<head>\n') at the top. Instead, we create
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   439
        # a temporary UStringIO to get the same debugging output formatting
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   440
        # if debugging is enabled.
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   441
        headtag = UStringIO(tracewrites=self.tracewrites)
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   442
        if not skiphead:
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   443
            headtag.write(u'<head>\n')
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   444
            w(u'</head>\n')
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   445
        return headtag.getvalue() + super(HTMLHead, self).getvalue()
1549
f87561822e27 some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents: 1397
diff changeset
   446
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   447
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   448
class HTMLStream(object):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   449
    """represents a HTML page.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   450
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   451
    This is used my main templates so that HTML headers can be added
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   452
    at any time during the page generation.
1549
f87561822e27 some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents: 1397
diff changeset
   453
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   454
    HTMLStream uses the (U)StringIO interface to be compliant with
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   455
    existing code.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   456
    """
1549
f87561822e27 some basic calendar manipulation functions, delete-trailing-whitespace
sylvain.thenault@logilab.fr
parents: 1397
diff changeset
   457
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   458
    def __init__(self, req):
10090
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   459
        self.tracehtml = req.tracehtml
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   460
        # stream for <head>
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
        self.head = req.html_headers
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   462
        # main stream
10090
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   463
        self.body = UStringIO(tracewrites=req.tracehtml)
10004
acad42456767 [utils] Remove function-in-the-middle call
Rémi Cardona <remi.cardona@logilab.fr>
parents: 9780
diff changeset
   464
        # this method will be assigned to self.w in views
acad42456767 [utils] Remove function-in-the-middle call
Rémi Cardona <remi.cardona@logilab.fr>
parents: 9780
diff changeset
   465
        self.write = self.body.write
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   466
        self.doctype = u''
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   467
        self._htmlattrs = [('lang', req.lang)]
3094
978ed8c2c0e4 [googlemap] #344872 set request content-type to text/html
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3091
diff changeset
   468
        # keep main_stream's reference on req for easier text/html demoting
978ed8c2c0e4 [googlemap] #344872 set request content-type to text/html
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3091
diff changeset
   469
        req.main_stream = self
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   470
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   471
    @deprecated('[3.17] there are no namespaces in html, xhtml is not served any longer')
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   472
    def add_namespace(self, prefix, uri):
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   473
        pass
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   474
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   475
    @deprecated('[3.17] there are no namespaces in html, xhtml is not served any longer')
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   476
    def set_namespaces(self, namespaces):
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   477
        pass
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   478
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   479
    def add_htmlattr(self, attrname, attrvalue):
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   480
        self._htmlattrs.append( (attrname, attrvalue) )
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   481
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   482
    def set_htmlattrs(self, attrs):
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   483
        self._htmlattrs = attrs
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   484
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   485
    def set_doctype(self, doctype, reset_xmldecl=None):
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   486
        self.doctype = doctype
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   487
        if reset_xmldecl is not None:
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   488
            warn('[3.17] xhtml is no more supported',
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   489
                 DeprecationWarning, stacklevel=2)
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   490
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   491
    @property
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   492
    def htmltag(self):
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   493
        attrs = ' '.join('%s="%s"' % (attr, xml_escape(value))
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   494
                         for attr, value in self._htmlattrs)
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   495
        if attrs:
9523
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   496
            return '<html xmlns:cubicweb="http://www.cubicweb.org" %s>' % attrs
cd5738fc440f [ajax] use a custom tag to handle dynamically loaded js
Julien Cristau <julien.cristau@logilab.fr>
parents: 9279
diff changeset
   497
        return '<html xmlns:cubicweb="http://www.cubicweb.org">'
7187
496f51b92154 [views] extend HTMLStream API to be able to change doctype / xmldecl
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 7140
diff changeset
   498
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   499
    def getvalue(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   500
        """writes HTML headers, closes </head> tag and writes HTML body"""
10090
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   501
        if self.tracehtml:
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   502
            css = u'\n'.join((u'span {',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   503
                              u'  font-family: monospace;',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   504
                              u'  word-break: break-all;',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   505
                              u'  word-wrap: break-word;',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   506
                              u'}',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   507
                              u'span:hover {',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   508
                              u'  color: red;',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   509
                              u'  text-decoration: underline;',
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   510
                              u'}'))
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   511
            style = u'<style type="text/css">\n%s\n</style>\n' % css
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   512
            return (u'<!DOCTYPE html>\n'
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   513
                    + u'<html>\n<head>\n%s\n</head>\n' % style
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   514
                    + u'<body>\n'
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   515
                    + u'<span>' + xml_escape(self.doctype) + u'</span><br/>'
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   516
                    + u'<span>' + xml_escape(self.htmltag) + u'</span><br/>'
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   517
                    + self.head.getvalue()
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   518
                    + self.body.getvalue()
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   519
                    + u'<span>' + xml_escape(u'</html>') + u'</span>'
0aebb1c0f849 [utils] Add a '_cwtracehtml' GET parameter to trace self._cw.w() calls (closes #4601327)
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10067
diff changeset
   520
                    + u'</body>\n</html>')
8941
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   521
        return u'%s\n%s\n%s\n%s\n</html>' % (self.doctype,
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   522
                                             self.htmltag,
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   523
                                             self.head.getvalue(),
7b26fe71404f drop xhtml content-type support (closes #2065651)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8795
diff changeset
   524
                                             self.body.getvalue())
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   525
5940
0e3ae19b181a [uilib] refactor json_dumps code organization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5883
diff changeset
   526
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   527
class CubicWebJsonEncoder(json.JSONEncoder):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   528
    """define a json encoder to be able to encode yams std types"""
5320
848e92bb81cc [json] provide a custom json encoder for entities that includes eid in the json object
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 5077
diff changeset
   529
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   530
    def default(self, obj):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   531
        if hasattr(obj, '__json_encode__'):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   532
            return obj.__json_encode__()
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   533
        if isinstance(obj, datetime.datetime):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   534
            return ustrftime(obj, '%Y/%m/%d %H:%M:%S')
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   535
        elif isinstance(obj, datetime.date):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   536
            return ustrftime(obj, '%Y/%m/%d')
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   537
        elif isinstance(obj, datetime.time):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   538
            return obj.strftime('%H:%M:%S')
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   539
        elif isinstance(obj, datetime.timedelta):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   540
            return (obj.days * 24 * 60 * 60) + obj.seconds
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   541
        elif isinstance(obj, decimal.Decimal):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   542
            return float(obj)
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   543
        try:
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   544
            return json.JSONEncoder.default(self, obj)
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   545
        except TypeError:
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   546
            # we never ever want to fail because of an unknown type,
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   547
            # just return None in those cases.
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   548
            return None
4652
7c41eea7fc30 restore 3.5 compat for date functions moved to lgc.date in 3.6 (closes #716055)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4511
diff changeset
   549
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   550
def json_dumps(value, **kwargs):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   551
    return json.dumps(value, cls=CubicWebJsonEncoder, **kwargs)
5940
0e3ae19b181a [uilib] refactor json_dumps code organization
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5883
diff changeset
   552
4879
56c16efedc51 deprecates merge_dicts
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4844
diff changeset
   553
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   554
class JSString(str):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   555
    """use this string sub class in values given to :func:`js_dumps` to
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   556
    insert raw javascript chain in some JSON string
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   557
    """
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   558
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   559
def _dict2js(d, predictable=False):
10258
61dfc689830a [utils] use the "predictable" argument to js_dumps
Julien Cristau <julien.cristau@logilab.fr>
parents: 10236
diff changeset
   560
    if predictable:
10662
10942ed172de [py3k] dict.iteritems → dict.items
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10661
diff changeset
   561
        it = sorted(d.items())
10258
61dfc689830a [utils] use the "predictable" argument to js_dumps
Julien Cristau <julien.cristau@logilab.fr>
parents: 10236
diff changeset
   562
    else:
10662
10942ed172de [py3k] dict.iteritems → dict.items
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10661
diff changeset
   563
        it = d.items()
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   564
    res = [key + ': ' + js_dumps(val, predictable)
10258
61dfc689830a [utils] use the "predictable" argument to js_dumps
Julien Cristau <julien.cristau@logilab.fr>
parents: 10236
diff changeset
   565
           for key, val in it]
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   566
    return '{%s}' % ', '.join(res)
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   567
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   568
def _list2js(l, predictable=False):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   569
    return '[%s]' % ', '.join([js_dumps(val, predictable) for val in l])
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   570
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   571
def js_dumps(something, predictable=False):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   572
    """similar as :func:`json_dumps`, except values which are instances of
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   573
    :class:`JSString` are expected to be valid javascript and will be output
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   574
    as is
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   575
9579
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   576
    >>> js_dumps({'hop': JSString('$.hop'), 'bar': None}, predictable=True)
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   577
    '{bar: null, hop: $.hop}'
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   578
    >>> js_dumps({'hop': '$.hop'})
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   579
    '{hop: "$.hop"}'
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   580
    >>> js_dumps({'hip': {'hop': JSString('momo')}})
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   581
    '{hip: {hop: momo}}'
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   582
    """
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   583
    if isinstance(something, dict):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   584
        return _dict2js(something, predictable)
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   585
    if isinstance(something, list):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   586
        return _list2js(something, predictable)
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   587
    if isinstance(something, JSString):
d5b0e1f4c5c5 [utils] the json module is always available
Julien Cristau <julien.cristau@logilab.fr>
parents: 9523
diff changeset
   588
        return something
10258
61dfc689830a [utils] use the "predictable" argument to js_dumps
Julien Cristau <julien.cristau@logilab.fr>
parents: 10236
diff changeset
   589
    return json_dumps(something, sort_keys=predictable)
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   590
7998
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   591
PERCENT_IN_URLQUOTE_RE = re.compile(r'%(?=[0-9a-fA-F]{2})')
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   592
def js_href(javascript_code):
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   593
    """Generate a "javascript: ..." string for an href attribute.
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   594
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   595
    Some % which may be interpreted in a href context will be escaped.
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   596
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   597
    In an href attribute, url-quotes-looking fragments are interpreted before
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   598
    being given to the javascript engine. Valid url quotes are in the form
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   599
    ``%xx`` with xx being a byte in hexadecimal form. This means that ``%toto``
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   600
    will be unaltered but ``%babar`` will be mangled because ``ba`` is the
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   601
    hexadecimal representation of 186.
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   602
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   603
    >>> js_href('alert("babar");')
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   604
    'javascript: alert("babar");'
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   605
    >>> js_href('alert("%babar");')
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   606
    'javascript: alert("%25babar");'
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   607
    >>> js_href('alert("%toto %babar");')
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   608
    'javascript: alert("%toto %25babar");'
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   609
    >>> js_href('alert("%1337%");')
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   610
    'javascript: alert("%251337%");'
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   611
    """
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   612
    return 'javascript: ' + PERCENT_IN_URLQUOTE_RE.sub(r'%25', javascript_code)
9ef285eb20f4 [utils] add a ``js_href`` function to generated proper javascript href
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7990
diff changeset
   613
7575
335f14e8e5a7 [uilib] new js_dumps function allowing usage of bare js string (wrapped into JSString)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7569
diff changeset
   614
8682
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   615
def parse_repo_uri(uri):
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   616
    """ transform a command line uri into a (protocol, hostport, appid), e.g:
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   617
    <myapp>                      -> 'inmemory', None, '<myapp>'
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   618
    inmemory://<myapp>           -> 'inmemory', None, '<myapp>'
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   619
    """
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   620
    parseduri = urlparse(uri)
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   621
    scheme = parseduri.scheme
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   622
    if scheme == '':
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   623
        return ('inmemory', None, parseduri.path)
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   624
    if scheme == 'inmemory':
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   625
        return (scheme, None, parseduri.netloc)
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   626
    raise NotImplementedError('URI protocol not implemented for `%s`' % uri)
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   627
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   628
20bd1cdf86ae [cwctl] fix cubicweb-ctl shell command (closes #2583919)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7998
diff changeset
   629
7954
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   630
logger = getLogger('cubicweb.utils')
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   631
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   632
class QueryCache(object):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   633
    """ a minimalist dict-like object to be used by the querier
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   634
    and native source (replaces lgc.cache for this very usage)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   635
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   636
    To be efficient it must be properly used. The usage patterns are
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   637
    quite specific to its current clients.
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   638
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   639
    The ceiling value should be sufficiently high, else it will be
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   640
    ruthlessly inefficient (there will be warnings when this happens).
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   641
    A good (high enough) value can only be set on a per-application
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   642
    value. A default, reasonnably high value is provided but tuning
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   643
    e.g `rql-cache-size` can certainly help.
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   644
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   645
    There are two kinds of elements to put in this cache:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   646
    * frequently used elements
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   647
    * occasional elements
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   648
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   649
    The former should finish in the _permanent structure after some
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   650
    warmup.
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   651
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   652
    Occasional elements can be buggy requests (server-side) or
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   653
    end-user (web-ui provided) requests. These have to be cleaned up
10510
51321946da37 Spelling fixes in comments and docstrings
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10258
diff changeset
   654
    when they fill the cache, without evicting the useful, frequently
7954
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   655
    used entries.
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   656
    """
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   657
    # quite arbitrary, but we want to never
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   658
    # immortalize some use-a-little query
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   659
    _maxlevel = 15
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   660
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   661
    def __init__(self, ceiling=3000):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   662
        self._max = ceiling
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   663
        # keys belonging forever to this cache
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   664
        self._permanent = set()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   665
        # mapping of key (that can get wiped) to getitem count
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   666
        self._transient = {}
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   667
        self._data = {}
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   668
        self._lock = Lock()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   669
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   670
    def __len__(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   671
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   672
            return len(self._data)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   673
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   674
    def __getitem__(self, k):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   675
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   676
            if k in self._permanent:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   677
                return self._data[k]
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   678
            v = self._transient.get(k, _MARKER)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   679
            if v is _MARKER:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   680
                self._transient[k] = 1
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   681
                return self._data[k]
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   682
            if v > self._maxlevel:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   683
                self._permanent.add(k)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   684
                self._transient.pop(k, None)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   685
            else:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   686
                self._transient[k] += 1
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   687
            return self._data[k]
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   688
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   689
    def __setitem__(self, k, v):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   690
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   691
            if len(self._data) >= self._max:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   692
                self._try_to_make_room()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   693
            self._data[k] = v
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   694
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   695
    def pop(self, key, default=_MARKER):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   696
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   697
            try:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   698
                if default is _MARKER:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   699
                    return self._data.pop(key)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   700
                return self._data.pop(key, default)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   701
            finally:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   702
                if key in self._permanent:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   703
                    self._permanent.remove(key)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   704
                else:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   705
                    self._transient.pop(key, None)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   706
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   707
    def clear(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   708
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   709
            self._clear()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   710
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   711
    def _clear(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   712
        self._permanent = set()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   713
        self._transient = {}
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   714
        self._data = {}
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   715
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   716
    def _try_to_make_room(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   717
        current_size = len(self._data)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   718
        items = sorted(self._transient.items(), key=itemgetter(1))
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   719
        level = 0
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   720
        for k, v in items:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   721
            self._data.pop(k, None)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   722
            self._transient.pop(k, None)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   723
            if v > level:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   724
                datalen = len(self._data)
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   725
                if datalen == 0:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   726
                    return
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   727
                if (current_size - datalen) / datalen > .1:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   728
                    break
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   729
                level = v
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   730
        else:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   731
            # we removed cruft but everything is permanent
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   732
            if len(self._data) >= self._max:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   733
                logger.warning('Cache %s is full.' % id(self))
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   734
                self._clear()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   735
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   736
    def _usage_report(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   737
        with self._lock:
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   738
            return {'itemcount': len(self._data),
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   739
                    'transientcount': len(self._transient),
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   740
                    'permanentcount': len(self._permanent)}
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   741
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   742
    def popitem(self):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   743
        raise NotImplementedError()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   744
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   745
    def setdefault(self, key, default=None):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   746
        raise NotImplementedError()
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   747
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   748
    def update(self, other):
a3d3220669d6 [cache] replace lgc.cache with something more appropriate (closes #1921713)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 7876
diff changeset
   749
        raise NotImplementedError()