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Commit 0a9dc8e1 authored by Jim Fulton's avatar Jim Fulton
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Almost initial version.

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lib/python/ZPublisher/Publish.py 0 → 100644
View file @ 0a9dc8e1
#! /usr/local/bin/python
import sys, os, string, types, cgi
from CGIResponse import Response, ExceptionResponse
class output_file:
'''Generic output abstraction output for CGI resource output.
This may be a thin layer around stdout, or it may be something
very different.'''
called=None
def write(self,s):
self.called=1
self.write=sys.stdout.write
if string.lower(string.strip(s)[:6]) == '<html>':
print 'content-type: text/html\n'
elif string.lower(s)[:13]!='content-type:':
print 'content-type: text/plain\n'
self.write(s)
def _publish_module(module_name, published='web_objects'):
dict={}
exec 'import %s' % module_name in dict
theModule=dict=dict[module_name]
if hasattr(dict,published):
dict=getattr(dict,published)
else:
dict=dict.__dict__
published=None
def env(key,d=os.environ):
try: return d[key]
except: return ''
query=cgi.parse() or {}
path=(string.strip(env('PATH_INFO')) or '/')[1:]
path=string.splitfields(path,'/')
while path and not path[0]: path = path[1:]
if not path and dict['__doc__']: function=theModule
else:
if not path: path = ['main']
function,path=dict[path[0]], path[1:]
if not (published or function.__doc__):
raise 'Forbidden',function
p=''
while path:
p,path=path[0], path[1:]
if p:
try: f=getattr(function,p)
except:
f=function[p]
function=f
if not (p=='__doc__' or function.__doc__):
raise 'Forbidden',function
def document(o,env=env):
if type(o) is not types.StringType: o=o.__doc__
return Response(('Documentation for' +
((env('PATH_INFO') or '/main')[1:]),
'<pre>\n%s\n</pre>' % o))
if(p=='__doc__' or env('METHOD_NAME') == 'HEAD'):
return document(function)
f=function
if type(f) is types.ClassType:
if hasattr(f,'__init__'):
f=f.__init__.im_func
else:
def ff(): pass
f=ff
if type(f) is types.MethodType:
defaults=f.im_func.func_defaults
names=(f.im_func.
func_code.co_varnames[1:f.im_func.func_code.co_argcount])
elif type(f) is types.FunctionType:
defaults=f.func_defaults
names=f.func_code.co_varnames[:f.func_code.co_argcount]
else:
return document(function)
environ=os.environ
for key in environ.keys():
query[key]=[environ[key]]
out=output_file()
query['OUTPUT_FILE']=[out]
last_name=len(names) - (len(defaults or []))
for name in names[:last_name]:
if not query.has_key(name): raise 'BadRequest', query
args={}
for name in names:
if query.has_key(name):
q=query[name]
if len(q) == 1: q=q[0]
args[name]=q
if args: result=apply(function,(),args)
else: result=function()
if out.called: # The function wrote output
if result: result=str(result)
else: result=''
return result
if type(result) is types.InstanceType and result.__class__ is Response:
return result
return Response(result)
def publish_module(module_name, published='web_objects'):
try:
response = _publish_module(module_name, published)
if response: print response
except:
print ExceptionResponse()
lib/python/ZPublisher/Response.py 0 → 100644
View file @ 0a9dc8e1
#!/usr/local/bin/python
# $What$
__doc__='''CGI Response Output formatter
$Id: Response.py,v 1.1 1996/06/17 18:57:18 jfulton Exp $'''
# Copyright
#
# Copyright 1996 Digital Creations, L.C., 910 Princess Anne
# Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
# rights reserved. Copyright in this software is owned by DCLC,
# unless otherwise indicated. Permission to use, copy and
# distribute this software is hereby granted, provided that the
# above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear. Note that
# any product, process or technology described in this software
# may be the subject of other Intellectual Property rights
# reserved by Digital Creations, L.C. and are not licensed
# hereunder.
#
# Trademarks
#
# Digital Creations & DCLC, are trademarks of Digital Creations, L.C..
# All other trademarks are owned by their respective companies.
#
# No Warranty
#
# The software is provided "as is" without warranty of any kind,
# either express or implied, including, but not limited to, the
# implied warranties of merchantability, fitness for a particular
# purpose, or non-infringement. This software could include
# technical inaccuracies or typographical errors. Changes are
# periodically made to the software; these changes will be
# incorporated in new editions of the software. DCLC may make
# improvements and/or changes in this software at any time
# without notice.
#
# Limitation Of Liability
#
# In no event will DCLC be liable for direct, indirect, special,
# incidental, economic, cover, or consequential damages arising
# out of the use of or inability to use this software even if
# advised of the possibility of such damages. Some states do not
# allow the exclusion or limitation of implied warranties or
# limitation of liability for incidental or consequential
# damages, so the above limitation or exclusion may not apply to
# you.
#
#
# If you have questions regarding this software,
# contact:
#
# Jim Fulton, jim@digicool.com
#
# (540) 371-6909
#
# $Log: Response.py,v $
# Revision 1.1 1996/06/17 18:57:18 jfulton
# Almost initial version.
#
#
#
__version__='$Revision: 1.1 $'[11:-2]
import string, types, sys
status_codes={
'ok': 200,
'created':201,
'accepted':202,
'nocontent':204,
'movedpermanently':301,
'movedtemporarily':302,
'notmodified':304,
'badrequest':400,
'unauthorized':401,
'forbidden':403,
'notfound':404,
'internalerror':500,
'notimplemented':501,
'badgateway':502,
'serviceunavailable':503,
200: 200,
201: 201,
202: 202,
204: 204,
301: 301,
302: 302,
304: 304,
400: 400,
401: 401,
403: 403,
404: 404,
500: 500,
501: 501,
502: 502,
503: 503,
# Map standard python exceptions to status codes:
'accesserror':403,
'attributeerror':501,
'conflicterror':500,
'eoferror':500,
'ioerror':500,
'importerror':500,
'indexerror':500,
'keyerror':503,
'memoryerror':500,
'nameerror':503,
'overflowerror':500,
'runtimeerror':500,
'syntaxerror':500,
'systemerror':500,
'typeerror':500,
'valueerror':500,
'zerodivisionerror':500,
}
class Response:
def __init__(self,body='',status=200,headers=None):
'''\
Creates a new response. In effect, the constructor calls
"self.setBody(body); self.setStatus(status); for name in
headers.keys(): self.setHeader(name, headers[name])"'''
if not headers:
headers={}
self.headers=headers
self.setStatus(status)
self.setBody(body)
def setStatus(self,status):
'''\
Sets the HTTP status code of the response; the argument may
either be an integer or a string from { OK, Created, Accepted,
NoContent, MovedPermanently, MovedTemporarily,
NotModified, BadRequest, Unauthorized, Forbidden,
NotFound, InternalError, NotImplemented, BadGateway,
ServiceUnavailable } that will be converted to the correct
integer value. '''
if type(status) is types.StringType:
status=string.lower(status)
try: status=status_codes[status]
except: status=500
self.status=status
self.setHeader('status',status)
def setHeader(self, name, value):
'''\
Sets an HTTP return header "name" with value "value", clearing
the previous value set for the header, if one exists. '''
self.headers[name]=value
def setBody(self, body, title=''):
'''\
Sets the return body equal to the (string) argument "body". Also
updates the "content-length" return header. '''
if type(body)==types.TupleType:
title,body=body
if(title):
self.body=('<html>\n<head>\n<title>%s</title>\n</head>\n'
'<body>\n%s\n</body>\n</html>'
% (str(title),str(body)))
else:
self.body=str(body)
def getStatus(self):
'Returns the current HTTP status code as an integer. '
return self.status
def appendCookie(self, name, value):
'''\
Returns an HTTP header that sets a cookie on cookie-enabled
browsers with a key "name" and value "value". If a value for the
cookie has previously been set in the response object, the new
value is appended to the old one separated by a colon. '''
def expireCookie(self, name):
'''\
Returns an HTTP header that will remove the cookie
corresponding to "name" on the client, if one exists. This is
accomplished by sending a new cookie with an expiration date
that has already passed. '''
def setCookie(self, name, value):
'''\
Returns an HTTP header that sets a cookie on cookie-enabled
browsers with a key "name" and value "value". This overwrites
any previously set value for the cookie in the Response object. '''
def appendBody(self, body):
''
self.setBody(self.getBody() + body)
def getHeader(self, name):
'''\
Returns the value associated with a HTTP return header, or
"None" if no such header has been set in the response yet. '''
return self.headers[name]
def getBody(self):
'Returns a string representing the currently set body. '
return self.body
def appendHeader(self, name, value, delimiter=","):
'''\
Sets an HTTP return header "name" with value "value",
appending it following a comma if there was a previous value
set for the header. '''
try:
h=self.header[name]
h="%s%s\n\t%s" % (h,delimiter,value)
except: h=value
self.setHeader(name,h)
def __str__(self):
headers=self.headers
body=self.body
if body:
if not headers.has_key('content-type'):
if len(body) > 6 and string.lower(body[:6]) == '<html>':
c='text/html'
else:
c='text/plain'
self.setHeader('content-type',c)
if not headers.has_key('content-length'):
self.setHeader('content-length',len(body))
headers=map(lambda k,d=headers: "%s: %s" % (k,d[k]), headers.keys())
if body: headers[len(headers):]=['',body]
return string.joinfields(headers,'\n')
def ExceptionResponse(body="Sorry, an error occurred"):
import traceback
t,v,tb=sys.exc_type, sys.exc_value,sys.exc_traceback
body=("%s<p>\n<!--\n%s\n-->" %
(body,
string.joinfields(traceback.format_exception(t,v,tb,200),'\n')
))
return Response(('Error',body),t)
# return Response('',t)
def main():
print Response('hello world')
print '-' * 70
print Response(('spam title','spam spam spam'))
print '-' * 70
try:
1.0/0.0
except: print ExceptionResponse()
if __name__ == "__main__": main()
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