#! /usr/local/bin/python

# NOTE: the above "/usr/local/bin/python" is NOT a mistake. It is

# intentionally NOT "/usr/bin/env python". On many systems

# (e.g. Solaris), /usr/local/bin is not in $PATH as passed to CGI

# scripts, and /usr/local/bin is the default directory where Python is

# installed, so /usr/bin/env would be unable to find python. Granted,

# binary installations by Linux vendors often install Python in

# /usr/bin. So let those vendors patch cgi.py to match their choice

# of installation.

"""Support module for CGI (Common Gateway Interface) scripts.

This module defines a number of utilities for use by CGI scripts

written in Python.

"""

# XXX Perhaps there should be a slimmed version that doesn't contain

# all those backwards compatible and debugging classes and functions?

# History

# -------

#

# Michael McLay started this module. Steve Majewski changed the

# interface to SvFormContentDict and FormContentDict. The multipart

# parsing was inspired by code submitted by Andreas Paepcke. Guido van

# Rossum rewrote, reformatted and documented the module and is currently

# responsible for its maintenance.

#

__version__ = "2.6"

# Imports

# =======

import sys

import os

import urllib

import mimetools

import rfc822

import UserDict

from StringIO import StringIO

__all__ = ["MiniFieldStorage", "FieldStorage", "FormContentDict",

"SvFormContentDict", "InterpFormContentDict", "FormContent",

"parse", "parse_qs", "parse_qsl", "parse_multipart",

"parse_header", "print_exception", "print_environ",

"print_form", "print_directory", "print_arguments",

"print_environ_usage", "escape"]

# Logging support

# ===============

logfile = "" # Filename to log to, if not empty

logfp = None # File object to log to, if not None

def initlog(*allargs):

"""Write a log message, if there is a log file.

Even though this function is called initlog(), you should always

use log(); log is a variable that is set either to initlog

(initially), to dolog (once the log file has been opened), or to

nolog (when logging is disabled).

The first argument is a format string; the remaining arguments (if

any) are arguments to the % operator, so e.g.

log("%s: %s", "a", "b")

will write "a: b" to the log file, followed by a newline.

If the global logfp is not None, it should be a file object to

which log data is written.

If the global logfp is None, the global logfile may be a string

giving a filename to open, in append mode. This file should be

world writable!!! If the file can't be opened, logging is

silently disabled (since there is no safe place where we could

send an error message).

"""

global logfp, log

if logfile and not logfp:

try:

logfp = open(logfile, "a")

except IOError:

pass

if not logfp:

log = nolog

else:

log = dolog

log(*allargs)

def dolog(fmt, *args):

"""Write a log message to the log file. See initlog() for docs."""

logfp.write(fmt%args + "\n")

def nolog(*allargs):

"""Dummy function, assigned to log when logging is disabled."""

pass

log = initlog # The current logging function

# Parsing functions

# =================

# Maximum input we will accept when REQUEST_METHOD is POST

# 0 ==> unlimited input

maxlen = 0

def parse(fp=None, environ=os.environ, keep_blank_values=0, strict_parsing=0):

"""Parse a query in the environment or from a file (default stdin)

Arguments, all optional:

fp : file pointer; default: sys.stdin

environ : environment dictionary; default: os.environ

keep_blank_values: flag indicating whether blank values in

URL encoded forms should be treated as blank strings.

A true value indicates that blanks should be retained as

blank strings. The default false value indicates that

blank values are to be ignored and treated as if they were

not included.

strict_parsing: flag indicating what to do with parsing errors.

If false (the default), errors are silently ignored.

If true, errors raise a ValueError exception.

"""

if fp is None:

fp = sys.stdin

if not 'REQUEST_METHOD' in environ:

environ['REQUEST_METHOD'] = 'GET' # For testing stand-alone

if environ['REQUEST_METHOD'] == 'POST':

ctype, pdict = parse_header(environ['CONTENT_TYPE'])

if ctype == 'multipart/form-data':

return parse_multipart(fp, pdict)

elif ctype == 'application/x-www-form-urlencoded':

clength = int(environ['CONTENT_LENGTH'])

if maxlen and clength > maxlen:

raise ValueError, 'Maximum content length exceeded'

qs = fp.read(clength)

else:

qs = '' # Unknown content-type

if 'QUERY_STRING' in environ:

if qs: qs = qs + '&'

qs = qs + environ['QUERY_STRING']

elif sys.argv[1:]:

if qs: qs = qs + '&'

qs = qs + sys.argv[1]

environ['QUERY_STRING'] = qs # XXX Shouldn't, really

elif 'QUERY_STRING' in environ:

qs = environ['QUERY_STRING']

else:

if sys.argv[1:]:

qs = sys.argv[1]

else:

qs = ""

environ['QUERY_STRING'] = qs # XXX Shouldn't, really

return parse_qs(qs, keep_blank_values, strict_parsing)

def parse_qs(qs, keep_blank_values=0, strict_parsing=0):

"""Parse a query given as a string argument.

Arguments:

qs: URL-encoded query string to be parsed

keep_blank_values: flag indicating whether blank values in

URL encoded queries should be treated as blank strings.

A true value indicates that blanks should be retained as

blank strings. The default false value indicates that

blank values are to be ignored and treated as if they were

not included.

strict_parsing: flag indicating what to do with parsing errors.

If false (the default), errors are silently ignored.

If true, errors raise a ValueError exception.

"""

dict = {}

for name, value in parse_qsl(qs, keep_blank_values, strict_parsing):

if name in dict:

dict[name].append(value)

else:

dict[name] = [value]

return dict

def parse_qsl(qs, keep_blank_values=0, strict_parsing=0):

"""Parse a query given as a string argument.

Arguments:

qs: URL-encoded query string to be parsed

keep_blank_values: flag indicating whether blank values in

URL encoded queries should be treated as blank strings. A

true value indicates that blanks should be retained as blank

strings. The default false value indicates that blank values

are to be ignored and treated as if they were not included.

strict_parsing: flag indicating what to do with parsing errors. If

false (the default), errors are silently ignored. If true,

errors raise a ValueError exception.

Returns a list, as G-d intended.

"""

pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]

r = []

for name_value in pairs:

nv = name_value.split('=', 1)

if len(nv) != 2:

if strict_parsing:

raise ValueError, "bad query field: %r" % (name_value,)

continue

if len(nv[1]) or keep_blank_values:

name = urllib.unquote(nv[0].replace('+', ' '))

value = urllib.unquote(nv[1].replace('+', ' '))

r.append((name, value))

return r

def parse_multipart(fp, pdict):

"""Parse multipart input.

Arguments:

fp : input file

pdict: dictionary containing other parameters of conten-type header

Returns a dictionary just like parse_qs(): keys are the field names, each

value is a list of values for that field. This is easy to use but not

much good if you are expecting megabytes to be uploaded -- in that case,

use the FieldStorage class instead which is much more flexible. Note

that content-type is the raw, unparsed contents of the content-type

header.

XXX This does not parse nested multipart parts -- use FieldStorage for

that.

XXX This should really be subsumed by FieldStorage altogether -- no

point in having two implementations of the same parsing algorithm.

"""

boundary = ""

if 'boundary' in pdict:

boundary = pdict['boundary']

if not valid_boundary(boundary):

raise ValueError, ('Invalid boundary in multipart form: %r'

% (boundary,))

nextpart = "--" + boundary

lastpart = "--" + boundary + "--"

partdict = {}

terminator = ""

while terminator != lastpart:

bytes = -1

data = None

if terminator:

# At start of next part. Read headers first.

headers = mimetools.Message(fp)

clength = headers.getheader('content-length')

if clength:

try:

bytes = int(clength)

except ValueError:

pass

if bytes > 0:

if maxlen and bytes > maxlen:

raise ValueError, 'Maximum content length exceeded'

data = fp.read(bytes)

else:

data = ""

# Read lines until end of part.

lines = []

while 1:

line = fp.readline()

if not line:

terminator = lastpart # End outer loop

break

if line[:2] == "--":

terminator = line.strip()

if terminator in (nextpart, lastpart):

break

lines.append(line)

# Done with part.

if data is None:

continue

if bytes < 0:

if lines:

# Strip final line terminator

line = lines[-1]

if line[-2:] == "\r\n":

line = line[:-2]

elif line[-1:] == "\n":

line = line[:-1]

lines[-1] = line

data = "".join(lines)

line = headers['content-disposition']

if not line:

continue

key, params = parse_header(line)

if key != 'form-data':

continue

if 'name' in params:

name = params['name']

else:

continue

if name in partdict:

partdict[name].append(data)

else:

partdict[name] = [data]

return partdict

def parse_header(line):

"""Parse a Content-type like header.

Return the main content-type and a dictionary of options.

"""

plist = map(lambda x: x.strip(), line.split(';'))

key = plist.pop(0).lower()

pdict = {}

for p in plist:

i = p.find('=')

if i >= 0:

name = p[:i].strip().lower()

value = p[i+1:].strip()

if len(value) >= 2 and value[0] == value[-1] == '"':

value = value[1:-1]

pdict[name] = value

return key, pdict

# Classes for field storage

# =========================

class MiniFieldStorage:

"""Like FieldStorage, for use when no file uploads are possible."""

# Dummy attributes

filename = None

list = None

type = None

file = None

type_options = {}

disposition = None

disposition_options = {}

headers = {}

def __init__(self, name, value):

"""Constructor from field name and value."""

self.name = name

self.value = value

# self.file = StringIO(value)

def __repr__(self):

"""Return printable representation."""

return "MiniFieldStorage(%r, %r)" % (self.name, self.value)

class FieldStorage:

"""Store a sequence of fields, reading multipart/form-data.

This class provides naming, typing, files stored on disk, and

more. At the top level, it is accessible like a dictionary, whose

keys are the field names. (Note: None can occur as a field name.)

The items are either a Python list (if there's multiple values) or

another FieldStorage or MiniFieldStorage object. If it's a single

object, it has the following attributes:

name: the field name, if specified; otherwise None

filename: the filename, if specified; otherwise None; this is the

client side filename, *not* the file name on which it is

stored (that's a temporary file you don't deal with)

value: the value as a *string*; for file uploads, this

transparently reads the file every time you request the value

file: the file(-like) object from which you can read the data;

None if the data is stored a simple string

type: the content-type, or None if not specified

type_options: dictionary of options specified on the content-type

line

disposition: content-disposition, or None if not specified

disposition_options: dictionary of corresponding options

headers: a dictionary(-like) object (sometimes rfc822.Message or a

subclass thereof) containing *all* headers

The class is subclassable, mostly for the purpose of overriding

the make_file() method, which is called internally to come up with

a file open for reading and writing. This makes it possible to

override the default choice of storing all files in a temporary

directory and unlinking them as soon as they have been opened.

"""

def __init__(self, fp=None, headers=None, outerboundary="",

environ=os.environ, keep_blank_values=0, strict_parsing=0):

"""Constructor. Read multipart/* until last part.

Arguments, all optional:

fp : file pointer; default: sys.stdin

(not used when the request method is GET)

headers : header dictionary-like object; default:

taken from environ as per CGI spec

outerboundary : terminating multipart boundary

(for internal use only)

environ : environment dictionary; default: os.environ

keep_blank_values: flag indicating whether blank values in

URL encoded forms should be treated as blank strings.

A true value indicates that blanks should be retained as

blank strings. The default false value indicates that

blank values are to be ignored and treated as if they were

not included.

strict_parsing: flag indicating what to do with parsing errors.

If false (the default), errors are silently ignored.

If true, errors raise a ValueError exception.

"""

method = 'GET'

self.keep_blank_values = keep_blank_values

self.strict_parsing = strict_parsing

if 'REQUEST_METHOD' in environ:

method = environ['REQUEST_METHOD'].upper()

if method == 'GET' or method == 'HEAD':

if 'QUERY_STRING' in environ:

qs = environ['QUERY_STRING']

elif sys.argv[1:]:

qs = sys.argv[1]

else:

qs = ""

fp = StringIO(qs)

if headers is None:

headers = {'content-type':

"application/x-www-form-urlencoded"}

if headers is None:

headers = {}

if method == 'POST':

# Set default content-type for POST to what's traditional

headers['content-type'] = "application/x-www-form-urlencoded"

if 'CONTENT_TYPE' in environ:

headers['content-type'] = environ['CONTENT_TYPE']

if 'CONTENT_LENGTH' in environ:

headers['content-length'] = environ['CONTENT_LENGTH']

self.fp = fp or sys.stdin

self.headers = headers

self.outerboundary = outerboundary

# Process content-disposition header

cdisp, pdict = "", {}

if 'content-disposition' in self.headers:

cdisp, pdict = parse_header(self.headers['content-disposition'])

self.disposition = cdisp

self.disposition_options = pdict

self.name = None

if 'name' in pdict:

self.name = pdict['name']

self.filename = None

if 'filename' in pdict:

self.filename = pdict['filename']

# Process content-type header

#

# Honor any existing content-type header. But if there is no

# content-type header, use some sensible defaults. Assume

# outerboundary is "" at the outer level, but something non-false

# inside a multi-part. The default for an inner part is text/plain,

# but for an outer part it should be urlencoded. This should catch

# bogus clients which erroneously forget to include a content-type

# header.

#

# See below for what we do if there does exist a content-type header,

# but it happens to be something we don't understand.

if 'content-type' in self.headers:

ctype, pdict = parse_header(self.headers['content-type'])

elif self.outerboundary or method != 'POST':

ctype, pdict = "text/plain", {}

else:

ctype, pdict = 'application/x-www-form-urlencoded', {}

self.type = ctype

self.type_options = pdict

self.innerboundary = ""

if 'boundary' in pdict:

self.innerboundary = pdict['boundary']

clen = -1

if 'content-length' in self.headers:

try:

clen = int(self.headers['content-length'])

except ValueError:

pass

if maxlen and clen > maxlen:

raise ValueError, 'Maximum content length exceeded'

self.length = clen

self.list = self.file = None

self.done = 0

if ctype == 'application/x-www-form-urlencoded':

self.read_urlencoded()

elif ctype[:10] == 'multipart/':

self.read_multi(environ, keep_blank_values, strict_parsing)

else:

self.read_single()

def __repr__(self):

"""Return a printable representation."""

return "FieldStorage(%r, %r, %r)" % (

self.name, self.filename, self.value)

def __iter__(self):

return iter(self.keys())

def __getattr__(self, name):

if name != 'value':

raise AttributeError, name

if self.file:

self.file.seek(0)

value = self.file.read()

self.file.seek(0)

elif self.list is not None:

value = self.list

else:

value = None

return value

def __getitem__(self, key):

"""Dictionary style indexing."""

if self.list is None:

raise TypeError, "not indexable"

found = []

for item in self.list:

if item.name == key: found.append(item)

if not found:

raise KeyError, key

if len(found) == 1:

return found[0]

else:

return found

def getvalue(self, key, default=None):

"""Dictionary style get() method, including 'value' lookup."""

if key in self:

value = self[key]

if type(value) is type([]):

return map(lambda v: v.value, value)

else:

return value.value

else:

return default

def getfirst(self, key, default=None):

""" Return the first value received."""

if key in self:

value = self[key]

if type(value) is type([]):

return value[0].value

else:

return value.value

else:

return default

def getlist(self, key):

""" Return list of received values."""

if key in self:

value = self[key]

if type(value) is type([]):

return map(lambda v: v.value, value)

else:

return [value.value]

else:

return []

def keys(self):

"""Dictionary style keys() method."""

if self.list is None:

raise TypeError, "not indexable"

keys = []

for item in self.list:

if item.name not in keys: keys.append(item.name)

return keys

def has_key(self, key):

"""Dictionary style has_key() method."""

if self.list is None:

raise TypeError, "not indexable"

for item in self.list:

if item.name == key: return True

return False

def __contains__(self, key):

"""Dictionary style __contains__ method."""

if self.list is None:

raise TypeError, "not indexable"

for item in self.list:

if item.name == key: return True

return False

def __len__(self):

"""Dictionary style len(x) support."""

return len(self.keys())

def read_urlencoded(self):

"""Internal: read data in query string format."""

qs = self.fp.read(self.length)

self.list = list = []

for key, value in parse_qsl(qs, self.keep_blank_values,

self.strict_parsing):

list.append(MiniFieldStorage(key, value))

self.skip_lines()

FieldStorageClass = None

def read_multi(self, environ, keep_blank_values, strict_parsing):

"""Internal: read a part that is itself multipart."""

ib = self.innerboundary

if not valid_boundary(ib):

raise ValueError, 'Invalid boundary in multipart form: %r' % (ib,)

self.list = []

klass = self.FieldStorageClass or self.__class__

part = klass(self.fp, {}, ib,

environ, keep_blank_values, strict_parsing)

# Throw first part away

while not part.done:

headers = rfc822.Message(self.fp)

part = klass(self.fp, headers, ib,

environ, keep_blank_values, strict_parsing)

self.list.append(part)

self.skip_lines()

def read_single(self):

"""Internal: read an atomic part."""

if self.length >= 0:

self.read_binary()

self.skip_lines()

else:

self.read_lines()

self.file.seek(0)

bufsize = 8*1024 # I/O buffering size for copy to file

def read_binary(self):

"""Internal: read binary data."""

self.file = self.make_file('b')

todo = self.length

if todo >= 0:

while todo > 0:

data = self.fp.read(min(todo, self.bufsize))

if not data:

self.done = -1

break

self.file.write(data)

todo = todo - len(data)

def read_lines(self):

"""Internal: read lines until EOF or outerboundary."""

self.file = self.__file = StringIO()

if self.outerboundary:

self.read_lines_to_outerboundary()

else:

self.read_lines_to_eof()

def __write(self, line):

if self.__file is not None:

if self.__file.tell() + len(line) > 1000:

self.file = self.make_file('')

self.file.write(self.__file.getvalue())

self.__file = None

self.file.write(line)

def read_lines_to_eof(self):

"""Internal: read lines until EOF."""

while 1:

line = self.fp.readline()

if not line:

self.done = -1

break

self.__write(line)

def read_lines_to_outerboundary(self):

"""Internal: read lines until outerboundary."""

next = "--" + self.outerboundary

last = next + "--"

delim = ""

while 1:

line = self.fp.readline()

if not line:

self.done = -1

break

if line[:2] == "--":

strippedline = line.strip()

if strippedline == next:

break

if strippedline == last:

self.done = 1

break

odelim = delim

if line[-2:] == "\r\n":

delim = "\r\n"

line = line[:-2]

elif line[-1] == "\n":

delim = "\n"

line = line[:-1]

else:

delim = ""

self.__write(odelim + line)

def skip_lines(self):

"""Internal: skip lines until outer boundary if defined."""

if not self.outerboundary or self.done:

return

next = "--" + self.outerboundary

last = next + "--"

while 1:

line = self.fp.readline()

if not line:

self.done = -1

break

if line[:2] == "--":

strippedline = line.strip()

if strippedline == next:

break

if strippedline == last:

self.done = 1

break

def make_file(self, binary=None):

"""Overridable: return a readable & writable file.

The file will be used as follows:

- data is written to it

- seek(0)

- data is read from it

The 'binary' argument is unused -- the file is always opened

in binary mode.

This version opens a temporary file for reading and writing,

and immediately deletes (unlinks) it. The trick (on Unix!) is

that the file can still be used, but it can't be opened by

another process, and it will automatically be deleted when it

is closed or when the current process terminates.

If you want a more permanent file, you derive a class which

overrides this method. If you want a visible temporary file

that is nevertheless automatically deleted when the script

terminates, try defining a __del__ method in a derived class

which unlinks the temporary files you have created.

"""

import tempfile

return tempfile.TemporaryFile("w+b")

# Backwards Compatibility Classes

# ===============================

class FormContentDict(UserDict.UserDict):

"""Form content as dictionary with a list of values per field.

form = FormContentDict()

form[key] -> [value, value, ...]

key in form -> Boolean

form.keys() -> [key, key, ...]

form.values() -> [[val, val, ...], [val, val, ...], ...]

form.items() -> [(key, [val, val, ...]), (key, [val, val, ...]), ...]

form.dict == {key: [val, val, ...], ...}

"""

def __init__(self, environ=os.environ):

self.dict = self.data = parse(environ=environ)

self.query_string = environ['QUERY_STRING']

class SvFormContentDict(FormContentDict):

"""Form content as dictionary expecting a single value per field.

If you only expect a single value for each field, then form[key]

will return that single value. It will raise an IndexError if

that expectation is not true. If you expect a field to have

possible multiple values, than you can use form.getlist(key) to

get all of the values. values() and items() are a compromise:

they return single strings where there is a single value, and

lists of strings otherwise.

"""

def __getitem__(self, key):

if len(self.dict[key]) > 1:

raise IndexError, 'expecting a single value'

return self.dict[key][0]

def getlist(self, key):

return self.dict[key]

def values(self):

result = []

for value in self.dict.values():

if len(value) == 1:

result.append(value[0])

else: result.append(value)

return result

def items(self):

result = []

for key, value in self.dict.items():

if len(value) == 1:

result.append((key, value[0]))

else: result.append((key, value))

return result

class InterpFormContentDict(SvFormContentDict):

"""This class is present for backwards compatibility only."""

def __getitem__(self, key):

v = SvFormContentDict.__getitem__(self, key)

if v[0] in '0123456789+-.':

try: return int(v)

except ValueError:

try: return float(v)

except ValueError: pass

return v.strip()

def values(self):

result = []

for key in self.keys():

try:

result.append(self[key])

except IndexError:

result.append(self.dict[key])

return result

def items(self):

result = []

for key in self.keys():

try:

result.append((key, self[key]))

except IndexError:

result.append((key, self.dict[key]))

return result

class FormContent(FormContentDict):

"""This class is present for backwards compatibility only."""

def values(self, key):

if key in self.dict :return self.dict[key]

else: return None

def indexed_value(self, key, location):

if key in self.dict:

if len(self.dict[key]) > location:

return self.dict[key][location]

else: return None

else: return None

def value(self, key):

if key in self.dict: return self.dict[key][0]

else: return None

def length(self, key):

return len(self.dict[key])

def stripped(self, key):

if key in self.dict: return self.dict[key][0].strip()

else: return None

def pars(self):

return self.dict

# Test/debug code

# ===============

def test(environ=os.environ):

"""Robust test CGI script, usable as main program.

Write minimal HTTP headers and dump all information provided to

the script in HTML form.

"""

print "Content-type: text/html"

print

sys.stderr = sys.stdout

try:

form = FieldStorage() # Replace with other classes to test those

print_directory()

print_arguments()

print_form(form)

print_environ(environ)

print_environ_usage()

def f():

exec "testing print_exception() -- <I>italics?</I>"

def g(f=f):

f()

print "<H3>What follows is a test, not an actual exception:</H3>"

g()

except:

print_exception()

print "<H1>Second try with a small maxlen...</H1>"

global maxlen

maxlen = 50

try:

form = FieldStorage() # Replace with other classes to test those

print_directory()

print_arguments()

print_form(form)

print_environ(environ)

except:

print_exception()

def print_exception(type=None, value=None, tb=None, limit=None):

if type is None:

type, value, tb = sys.exc_info()

import traceback

print

print "<H3>Traceback (most recent call last):</H3>"

list = traceback.format_tb(tb, limit) + \

traceback.format_exception_only(type, value)

print "<PRE>%s<B>%s</B></PRE>" % (

escape("".join(list[:-1])),

escape(list[-1]),

)

del tb

def print_environ(environ=os.environ):

"""Dump the shell environment as HTML."""

keys = environ.keys()

keys.sort()

print

print "<H3>Shell Environment:</H3>"

print "<DL>"

for key in keys:

print "<DT>", escape(key), "<DD>", escape(environ[key])

print "</DL>"

print

def print_form(form):

"""Dump the contents of a form as HTML."""

keys = form.keys()

keys.sort()

print

print "<H3>Form Contents:</H3>"

if not keys:

print "<P>No form fields."

print "<DL>"

for key in keys:

print "<DT>" + escape(key) + ":",

value = form[key]

print "<i>" + escape(repr(type(value))) + "</i>"

print "<DD>" + escape(repr(value))

print "</DL>"

print

def print_directory():

"""Dump the current directory as HTML."""

print

print "<H3>Current Working Directory:</H3>"

try:

pwd = os.getcwd()

except os.error, msg:

print "os.error:", escape(str(msg))

else:

print escape(pwd)

print

def print_arguments():

print

print "<H3>Command Line Arguments:</H3>"

print

print sys.argv

print

def print_environ_usage():

"""Dump a list of environment variables used by CGI as HTML."""

print """

<H3>These environment variables could have been set:</H3>

<UL>

<LI>AUTH_TYPE

<LI>CONTENT_LENGTH

<LI>CONTENT_TYPE

<LI>DATE_GMT

<LI>DATE_LOCAL

<LI>DOCUMENT_NAME

<LI>DOCUMENT_ROOT

<LI>DOCUMENT_URI

<LI>GATEWAY_INTERFACE

<LI>LAST_MODIFIED

<LI>PATH

<LI>PATH_INFO

<LI>PATH_TRANSLATED