author | Arthur Lutz <arthur.lutz@logilab.fr> |
Thu, 02 Feb 2012 17:59:52 +0100 | |
branch | stable |
changeset 8191 | eceaf9e21966 |
parent 7083 | b8e35cde46e9 |
child 8695 | 358d8bed9626 |
permissions | -rw-r--r-- |
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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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|
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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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91 |
except KeyError: |
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92 |
cachefile = osp.join(self._cache_directory, rid) |
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93 |
self.debug('caching processed %s/%s into %s', |
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94 |
rdirectory, rid, cachefile) |
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95 |
rcachedir = osp.dirname(cachefile) |
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96 |
if not osp.exists(rcachedir): |
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97 |
os.makedirs(rcachedir) |
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98 |
sourcefile = osp.join(rdirectory, rid) |
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99 |
content = file(sourcefile).read() |
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100 |
# XXX replace % not followed by a paren by %% to avoid having to do |
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101 |
# this in the source css file ? |
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102 |
try: |
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103 |
content = self.compile(content) |
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104 |
except ValueError, ex: |
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105 |
self.error("can't process %s/%s: %s", rdirectory, rid, ex) |
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106 |
adirectory = rdirectory |
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107 |
else: |
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108 |
stream = file(cachefile, 'w') |
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109 |
stream.write(content) |
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110 |
stream.close() |
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111 |
adirectory = self._cache_directory |
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112 |
self._cache[rid] = (adirectory, rdirectory, os.stat(sourcefile)[-2]) |
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113 |
return adirectory |
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114 |
|
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115 |
def compile(self, content): |
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116 |
return self._percent_rgx.sub('%%', content) % self |
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117 |
|
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118 |
# these are overridden by set_log_methods below |
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119 |
# only defining here to prevent pylint from complaining |
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120 |
info = warning = error = critical = exception = debug = lambda msg,*a,**kw: None |
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121 |
|
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122 |
from cubicweb.web import LOGGER |
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123 |
from logilab.common.logging_ext import set_log_methods |
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124 |
set_log_methods(PropertySheet, LOGGER) |