ilatypov/mod_wsgi_187.py

## mod_wsgi_187.py
#!/usr/bin/env python
# vim: et:ts=4:sts=4:sw=4:fileencoding=utf-8
ur"""
A sample WSGI application.
http://lucumr.pocoo.org/2007/5/21/getting-started-with-wsgi/
"""

import urlparse

html_escape_table = {
    "&": "&amp;",
    '"': "&quot;",
    "'": "&apos;",
    ">": "&gt;",
    "<": "&lt;",
    }


def html_escape(text):
    """Produce entities within text."""
    return "".join(html_escape_table.get(c,c) for c in text)


def mod_wsgi_187(environ, start_response):
    # for (k, v) in sorted(environ.items()):
    #     print "\"%s\"=\"%s\"" % (k, v, )
    # In the standalone mode SCRIPT_NAME shows empty, PATH_INFO receives "/mod_wsgi_187".
    # When integrated with Apache, SCRIPT_NAME receives "/mod_wsgi_187", PATH_INFO shows empty.
    path = environ.get('SCRIPT_NAME', '') + environ.get('PATH_INFO', '')
    if path != '/mod_wsgi_187':
        start_response('404 Not Found', [])
        return ''

    start_response('200 OK', [('Content-Type', 'text/html; charset=utf-8')])

    parameters = urlparse.parse_qs(environ.get('QUERY_STRING', ''))
    if 'subject' in parameters:
        subject = parameters['subject'][0]
    else:
        subject = 'World'

    try:
        request_body_size = int(environ.get('CONTENT_LENGTH', 0))
    except ValueError:
        request_body_size = 0

    stream = environ.get('wsgi.input')
    print dir(stream)
    to_read = request_body_size
    limit = 10240
    buf = []
    req_info = []
    while to_read > 0:
        chunk_size = to_read
        if chunk_size > limit:
            chunk_size = limit
        received = stream.read(chunk_size)
        len_received = len(received)
        if len_received == 0:
            raise Exception('EOF before reading %d more bytes' % (to_read,))
        buf.append(received)
        to_read -= len_received
        req_info.append((chunk_size, len_received))

    wsgi_input = []
    query = ''.join(buf)
    if len(query) > 0:
        d = urlparse.parse_qsl(query, keep_blank_values=True, strict_parsing=True)
    else:
        d = ()
    sorted_input = sorted(d, key=lambda x: (repr(x[0]).lower(), repr(x[1]).lower()))

    test_value = 'x' * (10241 - len('username=&submit=Submit+Query'));  # 10212

    for key, value in sorted_input:
        if key == "username":
            test_value = value
        wsgi_input.append('<tr><td>%s</td><td><code>%s</code></td></tr>' % (
            html_escape(key), html_escape(value)))

    return ['''<html>
<head>
    <title>Hello %(subject)s</title>
    <style>
    table {
        border: 1px solid grey;
        border-collapse: collapse;
        width: 100%%;
        table-layout: fixed;
    }
    th, td {
        border: 1px solid grey;
        word-wrap: break-word;
    }
    th.name {
        width: 100px;
    }
    </style>
</head>
<body>
    Hello %(subject)s!
    <p>
    %(req_info)s
    <p>
    <table>
        <thead>
            <tr><th class="name">Name</th><th class="value">Value</th></tr>
        </thead>
        <tbody>
            %(wsgi_input)s
        </tbody>
    </table>
    <p>
    <form method="POST">
        <input type="text" value="%(test_value)s" name="username"/>
        Length: %(test_value_len)s
        <input type="submit" name="submit"/>
    </form>
</body>
</html>
''' % {
        'subject': html_escape(subject),
        'req_info': '<br>'.join(html_escape('next chunk: %d, received: %d' % (chunk_size, len_received,))
            for (chunk_size, len_received) in req_info),
        'wsgi_input': '\n'.join(wsgi_input),
        'test_value': html_escape(test_value),
        'test_value_len': len(test_value),
        }]


application = mod_wsgi_187

if __name__ == '__main__':
    from wsgiref.simple_server import make_server
    srv = make_server('localhost', 18080, mod_wsgi_187)
    srv.serve_forever()
	#!/usr/bin/env python
	# vim: et:ts=4:sts=4:sw=4:fileencoding=utf-8
	ur"""
	A sample WSGI application.
	http://lucumr.pocoo.org/2007/5/21/getting-started-with-wsgi/
	"""

	import urlparse

	html_escape_table = {
	"&": "&",
	'"': """,
	"'": "'",
	">": ">",
	"<": "<",
	}


	def html_escape(text):
	"""Produce entities within text."""
	return "".join(html_escape_table.get(c,c) for c in text)


	def mod_wsgi_187(environ, start_response):
	# for (k, v) in sorted(environ.items()):
	# print "\"%s\"=\"%s\"" % (k, v, )
	# In the standalone mode SCRIPT_NAME shows empty, PATH_INFO receives "/mod_wsgi_187".
	# When integrated with Apache, SCRIPT_NAME receives "/mod_wsgi_187", PATH_INFO shows empty.
	path = environ.get('SCRIPT_NAME', '') + environ.get('PATH_INFO', '')
	if path != '/mod_wsgi_187':
	start_response('404 Not Found', [])
	return ''

	start_response('200 OK', [('Content-Type', 'text/html; charset=utf-8')])

	parameters = urlparse.parse_qs(environ.get('QUERY_STRING', ''))
	if 'subject' in parameters:
	subject = parameters['subject'][0]
	else:
	subject = 'World'

	try:
	request_body_size = int(environ.get('CONTENT_LENGTH', 0))
	except ValueError:
	request_body_size = 0

	stream = environ.get('wsgi.input')
	print dir(stream)
	to_read = request_body_size
	limit = 10240
	buf = []
	req_info = []
	while to_read > 0:
	chunk_size = to_read
	if chunk_size > limit:
	chunk_size = limit
	received = stream.read(chunk_size)
	len_received = len(received)
	if len_received == 0:
	raise Exception('EOF before reading %d more bytes' % (to_read,))
	buf.append(received)
	to_read -= len_received
	req_info.append((chunk_size, len_received))

	wsgi_input = []
	query = ''.join(buf)
	if len(query) > 0:
	d = urlparse.parse_qsl(query, keep_blank_values=True, strict_parsing=True)
	else:
	d = ()
	sorted_input = sorted(d, key=lambda x: (repr(x[0]).lower(), repr(x[1]).lower()))

	test_value = 'x' * (10241 - len('username=&submit=Submit+Query')); # 10212

	for key, value in sorted_input:
	if key == "username":
	test_value = value
	wsgi_input.append('<tr><td>%s</td><td><code>%s</code></td></tr>' % (
	html_escape(key), html_escape(value)))

	return ['''<html>
	<head>
	<title>Hello %(subject)s</title>
	<style>
	table {
	border: 1px solid grey;
	border-collapse: collapse;
	width: 100%%;
	table-layout: fixed;
	}
	th, td {
	border: 1px solid grey;
	word-wrap: break-word;
	}
	th.name {
	width: 100px;
	}
	</style>
	</head>
	<body>
	Hello %(subject)s!
	<p>
	%(req_info)s
	<p>
	<table>
	<thead>
	<tr><th class="name">Name</th><th class="value">Value</th></tr>
	</thead>
	<tbody>
	%(wsgi_input)s
	</tbody>
	</table>
	<p>
	<form method="POST">
	<input type="text" value="%(test_value)s" name="username"/>
	Length: %(test_value_len)s
	<input type="submit" name="submit"/>
	</form>
	</body>
	</html>
	''' % {
	'subject': html_escape(subject),
	'req_info': '<br>'.join(html_escape('next chunk: %d, received: %d' % (chunk_size, len_received,))
	for (chunk_size, len_received) in req_info),
	'wsgi_input': '\n'.join(wsgi_input),
	'test_value': html_escape(test_value),
	'test_value_len': len(test_value),
	}]


	application = mod_wsgi_187

	if __name__ == '__main__':
	from wsgiref.simple_server import make_server
	srv = make_server('localhost', 18080, mod_wsgi_187)
	srv.serve_forever()