python-pylons 1.0.2-1 / usr / lib / python2.7 / dist-packages / pylons / middleware.py

This file is indexed.

/usr/lib/python2.7/dist-packages/pylons/middleware.py is in python-pylons 1.0.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
"""Pylons' WSGI middlewares"""
import logging
import os.path

from paste.deploy.converters import asbool
from paste.urlparser import StaticURLParser
from weberror.evalexception import EvalException
from weberror.errormiddleware import ErrorMiddleware
from webhelpers.html import literal

import pylons
from pylons.controllers.util import Request, Response
from pylons.error import template_error_formatters
from pylons.util import call_wsgi_application

__all__ = ['ErrorHandler', 'error_document_template',
           'footer_html', 'head_html', 'media_path']

log = logging.getLogger(__name__)

media_path = '/usr/share/python-pylons/media/'

head_html = """\
<link rel="stylesheet" href="{{prefix}}/media/pylons/style/itraceback.css" \
type="text/css" media="screen" />"""

footer_html = """\
<script src="{{prefix}}/media/pylons/javascripts/traceback.js"></script>
<script>
var TRACEBACK = {
    uri: "{{prefix}}",
    host: "%s",
    traceback: "/tracebacks"
}
</script>
<div id="service_widget">
<h2 class="assistance">Online Assistance</h2>
<div id="nv">
<ul id="supportnav">
    <li class="nav active"><a class="overview" href="#">Overview</a></li>
    <li class="nav"><a class="search" href="#">Search Mail Lists</a></li>
</ul>
</div>
<div class="clearfix">&nbsp;</div>
<div class="overviewtab">
<b>Looking for help?</b>

<p>Here are a few tips for troubleshooting if the above traceback isn't
helping out.</p>

<ol>
<li>Search the mail list</li>
<li>Post a message to the mail list</li>

</div>

<div class="searchtab">
<p>The following mail lists will be searched:<br />
<input type="checkbox" name="lists" value="pylons" checked="checked" /> Pylons<br />
<input type="checkbox" name="lists" value="python" /> Python<br />
<input type="checkbox" name="lists" value="mako" /> Mako<br />
<input type="checkbox" name="lists" value="sqlalchemy" /> SQLAlchemy</p>
<p class="query">for: <input type="text" name="query" class="query" /></p>

<p><input type="submit" value="Search" /></p>
<div class="searchresults">

</div>
</div>

</div>
<div id="pylons_logo">\
<img src="{{prefix}}/media/pylons/img/pylons-powered-02.png" /></div>
<div class="credits">Pylons version %s</div>"""

report_libs = ['pylons', 'genshi', 'sqlalchemy']


def DebugHandler(app, global_conf, **kwargs):
    footer = footer_html % (kwargs.get('traceback_host',
                                       'pylonshq.com'),
                            pylons.__version__)
    py_media = dict(pylons=media_path)
    app = EvalException(app, global_conf,
                        templating_formatters=template_error_formatters,
                        media_paths=py_media, head_html=head_html,
                        footer_html=footer,
                        libraries=report_libs)
    return app


def ErrorHandler(app, global_conf, **errorware):
    """ErrorHandler Toggle

    If debug is enabled, this function will return the app wrapped in
    the WebError ``EvalException`` middleware which displays
    interactive debugging sessions when a traceback occurs.

    Otherwise, the app will be wrapped in the WebError
    ``ErrorMiddleware``, and the ``errorware`` dict will be passed into
    it. The ``ErrorMiddleware`` handles sending an email to the address
    listed in the .ini file, under ``email_to``.

    """
    if asbool(global_conf.get('debug')):
        footer = footer_html % (pylons.config.get('traceback_host',
                                                  'pylonshq.com'),
                                pylons.__version__)
        py_media = dict(pylons=media_path)
        app = EvalException(app, global_conf,
                            templating_formatters=template_error_formatters,
                            media_paths=py_media, head_html=head_html,
                            footer_html=footer,
                            libraries=report_libs)
    else:
        app = ErrorMiddleware(app, global_conf, **errorware)
    return app


class StatusCodeRedirect(object):
    """Internally redirects a request based on status code

    StatusCodeRedirect watches the response of the app it wraps. If the
    response is an error code in the errors sequence passed the request
    will be re-run with the path URL set to the path passed in.

    This operation is non-recursive and the output of the second
    request will be used no matter what it is.

    Should an application wish to bypass the error response (ie, to
    purposely return a 401), set
    ``environ['pylons.status_code_redirect'] = True`` in the application.

    """
    def __init__(self, app, errors=(400, 401, 403, 404),
                 path='/error/document'):
        """Initialize the ErrorRedirect

        ``errors``
            A sequence (list, tuple) of error code integers that should
            be caught.
        ``path``
            The path to set for the next request down to the
            application.

        """
        self.app = app
        self.error_path = path

        # Transform errors to str for comparison
        self.errors = tuple([str(x) for x in errors])

    def __call__(self, environ, start_response):
        status, headers, app_iter, exc_info = call_wsgi_application(
            self.app, environ, catch_exc_info=True)
        if status[:3] in self.errors and \
            'pylons.status_code_redirect' not in environ and self.error_path:
            # Create a response object
            environ['pylons.original_response'] = Response(
                status=status, headerlist=headers, app_iter=app_iter)
            environ['pylons.original_request'] = Request(environ)

            # Create a new environ to avoid touching the original request data
            new_environ = environ.copy()
            new_environ['PATH_INFO'] = self.error_path

            newstatus, headers, app_iter, exc_info = call_wsgi_application(
                    self.app, new_environ, catch_exc_info=True)
        start_response(status, headers, exc_info)
        return app_iter


error_document_template = literal("""\
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
 <title>Server Error %(code)s</title>
<!-- CSS Imports -->
<link rel="stylesheet" href="%(prefix)s/error/style/black.css" type="text/css" media="screen" />

<!-- Favorite Icons -->
<link rel="icon" href="%(prefix)s/error/img/favicon.ico" type="image/png" />

<style type="text/css">
        .red {
            color:#FF0000;
        }
        .bold {
            font-weight: bold;
        }
</style>
</head>

<body>
    <div id="container">
        %(message)s
    </div>
</body>
</html>
""")


def debugger_filter_factory(global_conf, **kwargs):
    def filter(app):
        return DebugHandler(app, global_conf, **kwargs)
    return filter


def debugger_filter_app_factory(app, global_conf, **kwargs):
    return DebugHandler(app, global_conf, **kwargs)

APT Browse - Built by Thomas Orozco.