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Editing: testapp.py
"""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 textwrap import wrap from markupsafe import escape 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 ncEn65UsLGytLVmQ6m4sQazpbtLqL/HwpnER8bHyLrLOc3Oz8PRONPU1crXN9na263dMt/g4SzjMeX m5yDpLqgG7OzJ4u8lT/P69ej3JPn69kHzN2OIAHkB9RUYSFCFQYQJFTIkCDBiwoXWGnowaLEjRm7+G p9A7Hhx4rUkAUaSLJlxHMqVMD/aSycSZkyTplCqtGnRAM5NQ1Ly5OmzZc6gO4d6DGAUKA+hSocWYAo SlM6oUWX2O/o0KdaVU5vuSQLAa0ADwQgMEMB2AIECZhVSnTno6spgbtXmHcBUrQACcc2FrTrWS8wAf 78cMFBgwIBgbN+qvTt3ayikRBk7BoyGAGABAdYyfdzRQGV3l4coxrqQ84GpUBmrdR3xNIDUPAKDBSA ADIGDhhqTZIWaDcrVX8EsbNzbkvCOxG8bN5w8ly9H8jyTJHC6DFndQydbguh2e/ctZJFXRxMAqqPVA tQH5E64SPr1f0zz7sQYjAHg0In+JQ11+N2B0XXBeeYZgBZFx4tqBToiTCPv0YBgQv8JqA6BEf6RhXx w1ENhRBnWV8ctEX4Ul2zc3aVGcQNC2KElyTDYyYUWvShdjDyMOGMuFjqnII45aogPhz/CodUHFwaDx lTgsaOjNyhGWJQd+lFoAGk8ObghI0kawg+EV5blH3dr+digkYuAGSaQZFHFz2P/cTaLmhF52QeSb45 Jwxd+uSVGHlqOZpOeJpCFZ5J+rkAkFjQ0N1tah7JJSZUFNsrkeJUJMIBi8jyaEKIhKPomnC91Uo+NB yyaJ5umnnpInIFh4t6ZSpGaAVmizqjpByDegYl8tPE0phCYrhcMWSv+uAqHfgH88ak5UXZmlKLVJhd dj78s1Fxnzo6yUCrV6rrDOkluG+QzCAUTbCwf9SrmMLzK6p+OPHx7DF+bsfMRq7Ec61Av9i6GLw23r idnZ+/OO0a99pbIrJkproCQMA17OPG6suq3cca5ruDfXCCDoS7BEdvmJn5otdqscn+uogRHHXs8cbh EIfYaDY1AkrC0cqwcZpnM6ludx72x0p7Fo/hZAcpJDjax0UdHavMKAbiKltMWCF3xxh9k25N/Viud8 ba78iCvUkt+V6BpwMlErmcgc502x+u1nSxJSJP9Mi52awD1V4yB/QHONsnU3L+A/zR4VL/indx/y64 gqcj+qgTeweM86f0Qy1QVbvmWH1D9h+alqg254QD8HJXHvjQaGOqEqC22M54PcftZVKVSQG9jhkv7C JyTyDoAJfPdu8v7DRZAxsP/ky9MJ3OL36DJfCFPASC3/aXlfLOOON9vGZZHydGf8LnxYJuuVIbl83y Az5n/RPz07E+9+zw2A2ahz4HxHo9Kt79HTMx1Q7ma7zAzHgHqYH0SoZWyTuOLMiHwSfZDAQTn0ajk9 YQqodnUYjByQZhZak9Wu4gYQsMyEpIOAOQKze8CmEF45KuAHTvIDOfHJNipwoHMuGHBnJElUoDmAyX c2Qm/R8Ah/iILCCJOEokGowdhDYc/yoL+vpRGwyVSCWFYZNljkhEirGXsalWcAgOdeAdoXcktF2udb qbUhjWyMQxYO01o6KYKOr6iK3fE4MaS+DsvBsGOBaMb0Y6IxADaJhFICaOLmiWTlDAnY1KzDG4ambL cWBA8mUzjJsN2KjSaSXGqMCVXYpYkj33mcIApyhQf6YqgeNAmNvuC0t4CsDbSshZJkCS1eNisKqlyG cF8G2JeiDX6tO6Mv0SmjCa3MFb0bJaGPMU0X7c8XcpvMaOQmCajwSeY9G0WqbBmKv34DsMIEztU6Y2 KiDlFdt6jnCSqx7Dmt6XnqSKaFFHNO5+FmODxMCWBEaco77lNDGXBM0ECYB/+s7nKFdwSF5hgXumQe EZ7amRg39RHy3zIjyRCykQh8Zo2iviRKyTDn/zx6EefptJj2Cw+Ep2FSc01U5ry4KLPYsTyWnVGnvb UpyGlhjBUljyjHhWpf8OFaXwhp9O4T1gU9UeyPPa8A2l0p1kNqPXEVRm1AOs1oAGZU596t6SOR2mcB Oco1srWtkaVrMUzIErrKri85keKqRQYX9VX0/eAUK1hrSu6HMEX3Qh2sCh0q0D2CtnUqS4hj62sE/z aDs2Sg7MBS6xnQeooc2R2tC9YrKpEi9pLXfYXp20tDCpSP8rKlrD4axprb9u1Df5hSbz9QU0cRpfgn kiIzwKucd0wsEHlLpe5yHXuc6FrNelOl7pY2+11kTWx7VpRu97dXA3DO1vbkhcb4zyvERYajQgAADs =""" ), mimetype="image/png", ) TEMPLATE = """\ <!doctype html> <html lang=en> <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(str(escape(repr(value))))) wsgi_env.append(f"<tr><th>{escape(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)
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