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"""A small application that can be used to test a WSGI server and check
it for WSGI compliance.
"""
import base64
import os
import sys
import typing as t
from html import escape
from textwrap import wrap
from . import __version__ as _werkzeug_version
from .wrappers.request import Request
from .wrappers.response import Response
if t.TYPE_CHECKING:
from _typeshed.wsgi import StartResponse
from _typeshed.wsgi import WSGIEnvironment
logo = Response(
base64.b64decode(
"""
R0lGODlhoACgAOMIAAEDACwpAEpCAGdgAJaKAM28AOnVAP3rAP/////////
//////////////////////yH5BAEKAAgALAAAAACgAKAAAAT+EMlJq704680R+F0ojmRpnuj0rWnrv
nB8rbRs33gu0bzu/0AObxgsGn3D5HHJbCUFyqZ0ukkSDlAidctNFg7gbI9LZlrBaHGtzAae0eloe25
7w9EDOX2fst/xenyCIn5/gFqDiVVDV4aGeYiKkhSFjnCQY5OTlZaXgZp8nJ2ekaB0SQOjqphrpnOiq
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yyaJ5umnnpInIFh4t6ZSpGaAVmizqjpByDegYl8tPE0phCYrhcMWSv+uAqHfgH88ak5UXZmlKLVJhd
dj78s1Fxnzo6yUCrV6rrDOkluG+QzCAUTbCwf9SrmMLzK6p+OPHx7DF+bsfMRq7Ec61Av9i6GLw23r
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JyTyDoAJfPdu8v7DRZAxsP/ky9MJ3OL36DJfCFPASC3/aXlfLOOON9vGZZHydGf8LnxYJuuVIbl83y
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KiDlFdt6jnCSqx7Dmt6XnqSKaFFHNO5+FmODxMCWBEaco77lNDGXBM0ECYB/+s7nKFdwSF5hgXumQe
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UpyGlhjBUljyjHhWpf8OFaXwhp9O4T1gU9UeyPPa8A2l0p1kNqPXEVRm1AOs1oAGZU596t6SOR2mcB
Oco1srWtkaVrMUzIErrKri85keKqRQYX9VX0/eAUK1hrSu6HMEX3Qh2sCh0q0D2CtnUqS4hj62sE/z
aDs2Sg7MBS6xnQeooc2R2tC9YrKpEi9pLXfYXp20tDCpSP8rKlrD4axprb9u1Df5hSbz9QU0cRpfgn
kiIzwKucd0wsEHlLpe5yHXuc6FrNelOl7pY2+11kTWx7VpRu97dXA3DO1vbkhcb4zyvERYajQgAADs
="""
),
mimetype="image/png",
)
TEMPLATE = """\
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<title>WSGI Information</title>
<style type="text/css">
@import url(https://fonts.googleapis.com/css?family=Ubuntu);
body { font-family: 'Lucida Grande', 'Lucida Sans Unicode', 'Geneva',
'Verdana', sans-serif; background-color: white; color: #000;
font-size: 15px; text-align: center; }
#logo { float: right; padding: 0 0 10px 10px; }
div.box { text-align: left; width: 45em; margin: auto; padding: 50px 0;
background-color: white; }
h1, h2 { font-family: 'Ubuntu', 'Lucida Grande', 'Lucida Sans Unicode',
'Geneva', 'Verdana', sans-serif; font-weight: normal; }
h1 { margin: 0 0 30px 0; }
h2 { font-size: 1.4em; margin: 1em 0 0.5em 0; }
table { width: 100%%; border-collapse: collapse; border: 1px solid #AFC5C9 }
table th { background-color: #AFC1C4; color: white; font-size: 0.72em;
font-weight: normal; width: 18em; vertical-align: top;
padding: 0.5em 0 0.1em 0.5em; }
table td { border: 1px solid #AFC5C9; padding: 0.1em 0 0.1em 0.5em; }
code { font-family: 'Consolas', 'Monaco', 'Bitstream Vera Sans Mono',
monospace; font-size: 0.7em; }
ul li { line-height: 1.5em; }
ul.path { font-size: 0.7em; margin: 0 -30px; padding: 8px 30px;
list-style: none; background: #E8EFF0; }
ul.path li { line-height: 1.6em; }
li.virtual { color: #999; text-decoration: underline; }
li.exp { background: white; }
</style>
<div class="box">
<img src="?resource=logo" id="logo" alt="[The Werkzeug Logo]" />
<h1>WSGI Information</h1>
<p>
This page displays all available information about the WSGI server and
the underlying Python interpreter.
<h2 id="python-interpreter">Python Interpreter</h2>
<table>
<tr>
<th>Python Version
<td>%(python_version)s
<tr>
<th>Platform
<td>%(platform)s [%(os)s]
<tr>
<th>API Version
<td>%(api_version)s
<tr>
<th>Byteorder
<td>%(byteorder)s
<tr>
<th>Werkzeug Version
<td>%(werkzeug_version)s
</table>
<h2 id="wsgi-environment">WSGI Environment</h2>
<table>%(wsgi_env)s</table>
<h2 id="installed-eggs">Installed Eggs</h2>
<p>
The following python packages were installed on the system as
Python eggs:
<ul>%(python_eggs)s</ul>
<h2 id="sys-path">System Path</h2>
<p>
The following paths are the current contents of the load path. The
following entries are looked up for Python packages. Note that not
all items in this path are folders. Gray and underlined items are
entries pointing to invalid resources or used by custom import hooks
such as the zip importer.
<p>
Items with a bright background were expanded for display from a relative
path. If you encounter such paths in the output you might want to check
your setup as relative paths are usually problematic in multithreaded
environments.
<ul class="path">%(sys_path)s</ul>
</div>
"""
def iter_sys_path() -> t.Iterator[t.Tuple[str, bool, bool]]:
if os.name == "posix":
def strip(x: str) -> str:
prefix = os.path.expanduser("~")
if x.startswith(prefix):
x = f"~{x[len(prefix) :]}"
return x
else:
def strip(x: str) -> str:
return x
cwd = os.path.abspath(os.getcwd())
for item in sys.path:
path = os.path.join(cwd, item or os.path.curdir)
yield strip(os.path.normpath(path)), not os.path.isdir(path), path != item
def render_testapp(req: Request) -> bytes:
try:
import pkg_resources
except ImportError:
eggs: t.Iterable[t.Any] = ()
else:
eggs = sorted(
pkg_resources.working_set,
key=lambda x: x.project_name.lower(), # type: ignore
)
python_eggs = []
for egg in eggs:
try:
version = egg.version
except (ValueError, AttributeError):
version = "unknown"
python_eggs.append(
f"<li>{escape(egg.project_name)} <small>[{escape(version)}]</small>"
)
wsgi_env = []
sorted_environ = sorted(req.environ.items(), key=lambda x: repr(x[0]).lower())
for key, value in sorted_environ:
value = "".join(wrap(escape(repr(value))))
wsgi_env.append(f"<tr><th>{escape(str(key))}<td><code>{value}</code>")
sys_path = []
for item, virtual, expanded in iter_sys_path():
class_ = []
if virtual:
class_.append("virtual")
if expanded:
class_.append("exp")
class_ = f' class="{" ".join(class_)}"' if class_ else ""
sys_path.append(f"<li{class_}>{escape(item)}")
return (
TEMPLATE
% {
"python_version": "<br>".join(escape(sys.version).splitlines()),
"platform": escape(sys.platform),
"os": escape(os.name),
"api_version": sys.api_version,
"byteorder": sys.byteorder,
"werkzeug_version": _werkzeug_version,
"python_eggs": "\n".join(python_eggs),
"wsgi_env": "\n".join(wsgi_env),
"sys_path": "\n".join(sys_path),
}
).encode("utf-8")
def test_app(
environ: "WSGIEnvironment", start_response: "StartResponse"
) -> t.Iterable[bytes]:
"""Simple test application that dumps the environment. You can use
it to check if Werkzeug is working properly:
.. sourcecode:: pycon
>>> from werkzeug.serving import run_simple
>>> from werkzeug.testapp import test_app
>>> run_simple('localhost', 3000, test_app)
* Running on http://localhost:3000/
The application displays important information from the WSGI environment,
the Python interpreter and the installed libraries.
"""
req = Request(environ, populate_request=False)
if req.args.get("resource") == "logo":
response = logo
else:
response = Response(render_testapp(req), mimetype="text/html")
return response(environ, start_response)
if __name__ == "__main__":
from .serving import run_simple
run_simple("localhost", 5000, test_app, use_reloader=True)
|
