web/propertysheet.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 27 Jun 2011 18:46:08 +0200
branchstable
changeset 7564 1d64c8d33156
parent 7083 b8e35cde46e9
child 8695 358d8bed9626
permissions -rw-r--r--
[server] "overrule" case insensitivity of database name (closes: #611294) The only instances where you are required to use quotes are either when a database object's identifier is identical to a keyword, or when the identifier has at least one capitalized letter in its name. In either of these circumstances, you must remember to quote the identifier both when creating the object, as well as in any subsequent references to that object
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# copyright 2010 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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"""property sheets allowing configuration of the web ui"""
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__docformat__ = "restructuredtext en"
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import re
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import os
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import os.path as osp
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TYPE_CHECKS = [('STYLESHEETS', list), ('JAVASCRIPTS', list),
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               ('STYLESHEETS_IE', list), ('STYLESHEETS_PRINT', list),
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               ]
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class lazystr(object):
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    def __init__(self, string, context):
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        self.string = string
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        self.context = context
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    def __str__(self):
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        return self.string % self.context
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class PropertySheet(dict):
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    def __init__(self, cache_directory, **context):
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        self._cache_directory = cache_directory
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        self.context = context
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        self.reset()
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        context['sheet'] = self
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        context['lazystr'] = self.lazystr
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        self._percent_rgx = re.compile('%(?!\()')
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    def lazystr(self, str):
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        return lazystr(str, self)
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    def reset(self):
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        self.clear()
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        self._ordered_propfiles = []
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        self._propfile_mtime = {}
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        self._sourcefile_mtime = {}
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        self._cache = {}
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    def load(self, fpath):
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        scriptglobals = self.context.copy()
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        scriptglobals['__file__'] = fpath
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        execfile(fpath, scriptglobals, self)
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        for name, type in TYPE_CHECKS:
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            if name in self:
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                if not isinstance(self[name], type):
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                    msg = "Configuration error: %s.%s should be a %s" % (fpath, name, type)
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                    raise Exception(msg)
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        self._propfile_mtime[fpath] = os.stat(fpath)[-2]
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        self._ordered_propfiles.append(fpath)
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    def need_reload(self):
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        for rid, (adirectory, rdirectory, mtime) in self._cache.items():
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            if os.stat(osp.join(rdirectory, rid))[-2] > mtime:
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                del self._cache[rid]
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        for fpath, mtime in self._propfile_mtime.iteritems():
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            if os.stat(fpath)[-2] > mtime:
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                return True
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        return False
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    def reload(self):
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        ordered_files = self._ordered_propfiles
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        self.reset()
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        for fpath in ordered_files:
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            self.load(fpath)
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    def reload_if_needed(self):
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        if self.need_reload():
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            self.reload()
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    def process_resource(self, rdirectory, rid):
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        try:
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            return self._cache[rid][0]
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        except KeyError:
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            cachefile = osp.join(self._cache_directory, rid)
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            self.debug('caching processed %s/%s into %s',
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                       rdirectory, rid, cachefile)
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            rcachedir = osp.dirname(cachefile)
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            if not osp.exists(rcachedir):
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                os.makedirs(rcachedir)
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            sourcefile = osp.join(rdirectory, rid)
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    99
            content = file(sourcefile).read()
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   100
            # XXX replace % not followed by a paren by %% to avoid having to do
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   101
            # this in the source css file ?
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   102
            try:
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   103
                content = self.compile(content)
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   104
            except ValueError, ex:
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
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   105
                self.error("can't process %s/%s: %s", rdirectory, rid, ex)
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b5af2ac0c43c [uiprops] test and fix reloading of modified css files; update c-c newcube; deprecates config.has_resource.
Sylvain Thénault <sylvain.thenault@logilab.fr>
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   106
                adirectory = rdirectory
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4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   107
            else:
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   108
                stream = file(cachefile, 'w')
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5444
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   109
                stream.write(content)
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5444
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   110
                stream.close()
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b5af2ac0c43c [uiprops] test and fix reloading of modified css files; update c-c newcube; deprecates config.has_resource.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5445
diff changeset
   111
                adirectory = self._cache_directory
b5af2ac0c43c [uiprops] test and fix reloading of modified css files; update c-c newcube; deprecates config.has_resource.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5445
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   112
            self._cache[rid] = (adirectory, rdirectory, os.stat(sourcefile)[-2])
b5af2ac0c43c [uiprops] test and fix reloading of modified css files; update c-c newcube; deprecates config.has_resource.
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5445
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   113
            return adirectory
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4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5444
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   114
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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parents: 5444
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   115
    def compile(self, content):
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   116
        return self._percent_rgx.sub('%%', content) % self
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   117
7083
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Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6000
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   118
    # these are overridden by set_log_methods below
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Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6000
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   119
    # only defining here to prevent pylint from complaining
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Alexandre Fayolle <alexandre.fayolle@logilab.fr>
parents: 6000
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   120
    info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None
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parents: 6000
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   121
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4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
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   122
from cubicweb.web import LOGGER
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5444
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   123
from logilab.common.logging_ext import set_log_methods
4467ed43d97d [web] use uiprops value to compile css transparently, handlig cache and reloading in debug mode
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   124
set_log_methods(PropertySheet, LOGGER)