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Commit 4ffc155a authored by Amos Latteier's avatar Amos Latteier
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Fixed DOS line endings. Doh! Thanks to Jarkko Kniivil� for pointing out the problem.

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ZServer/HTTPResponse.py
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##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""
ZServer HTTPResponse
The HTTPResponse class takes care of server headers, response munging
and logging duties.
"""
import time, regex, string, sys, tempfile
from cStringIO import StringIO
from ZPublisher.HTTPResponse import HTTPResponse, end_of_header_search
from medusa.http_date import build_http_date
from PubCore.ZEvent import Wakeup
from medusa.producers import hooked_producer
from medusa import http_server, asyncore
from Producers import ShutdownProducer, LoggingProducer, CallbackProducer
import DebugLogger
class ZServerHTTPResponse(HTTPResponse):
"Used to push data into a channel's producer fifo"
http_chunk=0
http_chunk_size=1024
# defaults
_http_version='1.0'
_http_connection='close'
_server_version='Zope/2.0 ZServer/2.0'
def __str__(self,
html_search=regex.compile('<html>',regex.casefold).search,
):
if self._wrote: return '' # Streaming output was used.
headers=self.headers
body=self.body
if body:
isHTML=self.isHTML(body)
if not headers.has_key('content-type'):
if isHTML:
c='text/html'
else:
c='text/plain'
self.setHeader('content-type',c)
else:
isHTML = headers['content-type']=='text/html'
if isHTML and end_of_header_search(self.body) < 0:
lhtml=html_search(body)
if lhtml >= 0:
lhtml=lhtml+6
body='%s<head></head>\n%s' % (body[:lhtml],body[lhtml:])
else:
body='<html><head></head>\n' + body
self.setBody(body)
body=self.body
# set 204 (no content) status if 200 and response is empty
if not headers.has_key('content-type') and \
not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding') and \
self.status == 200:
self.setStatus('nocontent')
# add content length if not transfer encoded
if not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding'):
self.setHeader('content-length',len(body))
headersl=[]
append=headersl.append
status=headers.get('status', '200 OK')
# status header must come first.
append("HTTP/%s %s" % (self._http_version, status))
if headers.has_key('status'):
del headers['status']
# add zserver headers
append('Server: %s' % self._server_version)
append('Date: %s' % build_http_date(time.time()))
chunk=0
if self._http_version=='1.0':
if self._http_connection=='keep alive':
if self.headers.has_key('content-length'):
self.setHeader('Connection','close')
else:
self.setHeader('Connection','Keep-Alive')
else:
self.setHeader('Connection','close')
elif self._http_version=='1.1':
if self._http_connection=='close':
self.setHeader('Connection','close')
elif not self.headers.has_key('content-length'):
if self.headers.has_key('transfer-encoding'):
if self.headers['transfer-encoding'] != 'chunked':
self.setHeader('Connection','close')
else:
chunk=1
elif self.http_chunk:
self.setHeader('Transfer-Encoding','chunked')
chunk=1
else:
self.setHeader('Connection','close')
if chunk:
chunked_body=''
while body:
chunk=body[:self.http_chunk_size]
body=body[self.http_chunk_size:]
chunked_body='%s%x\r\n%s\r\n' % (chunked_body, len(chunk), chunk)
chunked_body='%s0\r\n\r\n' % chunked_body
body=chunked_body
for key, val in headers.items():
if string.lower(key)==key:
# only change non-literal header names
key="%s%s" % (string.upper(key[:1]), key[1:])
start=0
l=string.find(key,'-',start)
while l >= start:
key="%s-%s%s" % (key[:l],string.upper(key[l+1:l+2]),key[l+2:])
start=l+1
l=string.find(key,'-',start)
append("%s: %s" % (key, val))
if self.cookies:
headersl=headersl+self._cookie_list()
headersl[len(headersl):]=[self.accumulated_headers, body]
return string.join(headersl,'\r\n')
_tempfile=None
_tempstart=0
def write(self,data):
"""\
Return data as a stream
HTML data may be returned using a stream-oriented interface.
This allows the browser to display partial results while
computation of a response to proceed.
The published object should first set any output headers or
cookies on the response object.
Note that published objects must not generate any errors
after beginning stream-oriented output.
"""
stdout=self.stdout
if not self._wrote:
l=self.headers.get('content-length', None)
if l is not None:
try:
if type(l) is type(''): l=string.atoi(l)
if l > 128000:
self._tempfile=tempfile.TemporaryFile()
except: pass
stdout.write(str(self))
self._wrote=1
if not data: return
t=self._tempfile
if t is None:
stdout.write(data)
else:
l=len(data)
b=self._tempstart
e=b+l
t.seek(b)
t.write(data)
self._tempstart=e
stdout.write(file_part_producer(t,b,e), l)
# XXX add server headers, etc to write()
def _finish(self):
stdout=self.stdout
t=self._tempfile
if t is not None:
stdout.write(file_close_producer(t), 0)
self._tempfile=None
stdout.finish(self)
stdout.close()
self.stdout=None # need to break cycle?
self._request=None
class ChannelPipe:
"""Experimental pipe from ZPublisher to a ZServer Channel.
Should only be used by one thread at a time. Note also that
the channel will be being handled by another thread, thus
restrict access to channel to the push method only."""
def __init__(self, request):
self._channel=request.channel
self._request=request
self._shutdown=0
self._close=0
self._bytes=0
def write(self, text, l=None):
if l is None: l=len(text)
self._bytes=self._bytes + l
self._channel.push(text,0)
Wakeup()
def close(self):
DebugLogger.log('A', id(self._request),
'%s %s' % (self._request.reply_code, self._bytes))
self._channel.push(LoggingProducer(self._request, self._bytes), 0)
self._channel.push(CallbackProducer(self._channel.done), 0)
self._channel.push(CallbackProducer(lambda t=('E', id(self._request)): apply(DebugLogger.log, t)), 0)
if self._shutdown:
try: r=self._shutdown[0]
except: r=0
sys.ZServerExitCode=r
self._channel.push(ShutdownProducer(), 0)
Wakeup(lambda: asyncore.close_all())
else:
if self._close: self._channel.push(None, 0)
Wakeup()
self._channel=None #need to break cycles?
self._request=None
def flush(self): pass # yeah, whatever
def finish(self, response):
if response.headers.get('bobo-exception-type', '') == \
'exceptions.SystemExit':
r=response.headers.get('bobo-exception-value','0')
try: r=string.atoi(r)
except: r = r and 1 or 0
self._shutdown=r,
if response.headers.get('connection','') == 'close' or \
response.headers.get('Connection','') == 'close':
self._close=1
self._request.reply_code=response.status
def retry(self):
"""Return a request object to be used in a retry attempt
"""
# This implementation is a bit lame, because it assumes that
# only stdout stderr were passed to the constructor. OTOH, I
# think that that's all that is ever passed.
response=self.__class__(stdout=self.stdout, stderr=self.stderr)
response._http_version=self._http_version
response._http_connection=self._http_connection
response._server_version=self._server_version
return response
def make_response(request, headers):
"Simple http response factory"
# should this be integrated into the HTTPResponse constructor?
response=ZServerHTTPResponse(stdout=ChannelPipe(request), stderr=StringIO())
response._http_version=request.version
response._http_connection=string.lower(
http_server.get_header(http_server.CONNECTION, request.header))
response._server_version=request.channel.server.SERVER_IDENT
return response
class file_part_producer:
"producer wrapper for part of a file[-like] objects"
# match http_channel's outgoing buffer size
out_buffer_size = 1<<16
def __init__(self, file, start, end):
self.file=file
self.start=start
self.end=end
def more(self):
end=self.end
if not end: return ''
start=self.start
if start >= end: return ''
file=self.file
file.seek(start)
size=end-start
bsize=self.out_buffer_size
if size > bsize: size=bsize
data = file.read(size)
if data:
start=start+len(data)
if start < end:
self.start=start
return data
self.end=0
del self.file
return data
class file_close_producer:
def __init__(self, file):
self.file=file
def more(self):
file=self.file
if file is not None:
file.close()
self.file=None
return ''
##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""
ZServer HTTPResponse
The HTTPResponse class takes care of server headers, response munging
and logging duties.
"""
import time, regex, string, sys, tempfile
from cStringIO import StringIO
from ZPublisher.HTTPResponse import HTTPResponse, end_of_header_search
from medusa.http_date import build_http_date
from PubCore.ZEvent import Wakeup
from medusa.producers import hooked_producer
from medusa import http_server, asyncore
from Producers import ShutdownProducer, LoggingProducer, CallbackProducer
import DebugLogger
class ZServerHTTPResponse(HTTPResponse):
"Used to push data into a channel's producer fifo"
http_chunk=0
http_chunk_size=1024
# defaults
_http_version='1.0'
_http_connection='close'
_server_version='Zope/2.0 ZServer/2.0'
def __str__(self,
html_search=regex.compile('<html>',regex.casefold).search,
):
if self._wrote: return '' # Streaming output was used.
headers=self.headers
body=self.body
if body:
isHTML=self.isHTML(body)
if not headers.has_key('content-type'):
if isHTML:
c='text/html'
else:
c='text/plain'
self.setHeader('content-type',c)
else:
isHTML = headers['content-type']=='text/html'
if isHTML and end_of_header_search(self.body) < 0:
lhtml=html_search(body)
if lhtml >= 0:
lhtml=lhtml+6
body='%s<head></head>\n%s' % (body[:lhtml],body[lhtml:])
else:
body='<html><head></head>\n' + body
self.setBody(body)
body=self.body
# set 204 (no content) status if 200 and response is empty
if not headers.has_key('content-type') and \
not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding') and \
self.status == 200:
self.setStatus('nocontent')
# add content length if not transfer encoded
if not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding'):
self.setHeader('content-length',len(body))
headersl=[]
append=headersl.append
status=headers.get('status', '200 OK')
# status header must come first.
append("HTTP/%s %s" % (self._http_version, status))
if headers.has_key('status'):
del headers['status']
# add zserver headers
append('Server: %s' % self._server_version)
append('Date: %s' % build_http_date(time.time()))
chunk=0
if self._http_version=='1.0':
if self._http_connection=='keep alive':
if self.headers.has_key('content-length'):
self.setHeader('Connection','close')
else:
self.setHeader('Connection','Keep-Alive')
else:
self.setHeader('Connection','close')
elif self._http_version=='1.1':
if self._http_connection=='close':
self.setHeader('Connection','close')
elif not self.headers.has_key('content-length'):
if self.headers.has_key('transfer-encoding'):
if self.headers['transfer-encoding'] != 'chunked':
self.setHeader('Connection','close')
else:
chunk=1
elif self.http_chunk:
self.setHeader('Transfer-Encoding','chunked')
chunk=1
else:
self.setHeader('Connection','close')
if chunk:
chunked_body=''
while body:
chunk=body[:self.http_chunk_size]
body=body[self.http_chunk_size:]
chunked_body='%s%x\r\n%s\r\n' % (chunked_body, len(chunk), chunk)
chunked_body='%s0\r\n\r\n' % chunked_body
body=chunked_body
for key, val in headers.items():
if string.lower(key)==key:
# only change non-literal header names
key="%s%s" % (string.upper(key[:1]), key[1:])
start=0
l=string.find(key,'-',start)
while l >= start:
key="%s-%s%s" % (key[:l],string.upper(key[l+1:l+2]),key[l+2:])
start=l+1
l=string.find(key,'-',start)
append("%s: %s" % (key, val))
if self.cookies:
headersl=headersl+self._cookie_list()
headersl[len(headersl):]=[self.accumulated_headers, body]
return string.join(headersl,'\r\n')
_tempfile=None
_tempstart=0
def write(self,data):
"""\
Return data as a stream
HTML data may be returned using a stream-oriented interface.
This allows the browser to display partial results while
computation of a response to proceed.
The published object should first set any output headers or
cookies on the response object.
Note that published objects must not generate any errors
after beginning stream-oriented output.
"""
stdout=self.stdout
if not self._wrote:
l=self.headers.get('content-length', None)
if l is not None:
try:
if type(l) is type(''): l=string.atoi(l)
if l > 128000:
self._tempfile=tempfile.TemporaryFile()
except: pass
stdout.write(str(self))
self._wrote=1
if not data: return
t=self._tempfile
if t is None:
stdout.write(data)
else:
l=len(data)
b=self._tempstart
e=b+l
t.seek(b)
t.write(data)
self._tempstart=e
stdout.write(file_part_producer(t,b,e), l)
# XXX add server headers, etc to write()
def _finish(self):
stdout=self.stdout
t=self._tempfile
if t is not None:
stdout.write(file_close_producer(t), 0)
self._tempfile=None
stdout.finish(self)
stdout.close()
self.stdout=None # need to break cycle?
self._request=None
class ChannelPipe:
"""Experimental pipe from ZPublisher to a ZServer Channel.
Should only be used by one thread at a time. Note also that
the channel will be being handled by another thread, thus
restrict access to channel to the push method only."""
def __init__(self, request):
self._channel=request.channel
self._request=request
self._shutdown=0
self._close=0
self._bytes=0
def write(self, text, l=None):
if l is None: l=len(text)
self._bytes=self._bytes + l
self._channel.push(text,0)
Wakeup()
def close(self):
DebugLogger.log('A', id(self._request),
'%s %s' % (self._request.reply_code, self._bytes))
self._channel.push(LoggingProducer(self._request, self._bytes), 0)
self._channel.push(CallbackProducer(self._channel.done), 0)
self._channel.push(CallbackProducer(
lambda t=('E', id(self._request)): apply(DebugLogger.log, t)), 0)
if self._shutdown:
try: r=self._shutdown[0]
except: r=0
sys.ZServerExitCode=r
self._channel.push(ShutdownProducer(), 0)
Wakeup(lambda: asyncore.close_all())
else:
if self._close: self._channel.push(None, 0)
Wakeup()
self._channel=None #need to break cycles?
self._request=None
def flush(self): pass # yeah, whatever
def finish(self, response):
if response.headers.get('bobo-exception-type', '') == \
'exceptions.SystemExit':
r=response.headers.get('bobo-exception-value','0')
try: r=string.atoi(r)
except: r = r and 1 or 0
self._shutdown=r,
if response.headers.get('connection','') == 'close' or \
response.headers.get('Connection','') == 'close':
self._close=1
self._request.reply_code=response.status
def retry(self):
"""Return a request object to be used in a retry attempt
"""
# This implementation is a bit lame, because it assumes that
# only stdout stderr were passed to the constructor. OTOH, I
# think that that's all that is ever passed.
response=self.__class__(stdout=self.stdout, stderr=self.stderr)
response._http_version=self._http_version
response._http_connection=self._http_connection
response._server_version=self._server_version
return response
def make_response(request, headers):
"Simple http response factory"
# should this be integrated into the HTTPResponse constructor?
response=ZServerHTTPResponse(stdout=ChannelPipe(request), stderr=StringIO())
response._http_version=request.version
response._http_connection=string.lower(
http_server.get_header(http_server.CONNECTION, request.header))
response._server_version=request.channel.server.SERVER_IDENT
return response
class file_part_producer:
"producer wrapper for part of a file[-like] objects"
# match http_channel's outgoing buffer size
out_buffer_size = 1<<16
def __init__(self, file, start, end):
self.file=file
self.start=start
self.end=end
def more(self):
end=self.end
if not end: return ''
start=self.start
if start >= end: return ''
file=self.file
file.seek(start)
size=end-start
bsize=self.out_buffer_size
if size > bsize: size=bsize
data = file.read(size)
if data:
start=start+len(data)
if start < end:
self.start=start
return data
self.end=0
del self.file
return data
class file_close_producer:
def __init__(self, file):
self.file=file
def more(self):
file=self.file
if file is not None:
file.close()
self.file=None
return ''
lib/python/ZServer/HTTPResponse.py
View file @ 4ffc155a
##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""
ZServer HTTPResponse
The HTTPResponse class takes care of server headers, response munging
and logging duties.
"""
import time, regex, string, sys, tempfile
from cStringIO import StringIO
from ZPublisher.HTTPResponse import HTTPResponse, end_of_header_search
from medusa.http_date import build_http_date
from PubCore.ZEvent import Wakeup
from medusa.producers import hooked_producer
from medusa import http_server, asyncore
from Producers import ShutdownProducer, LoggingProducer, CallbackProducer
import DebugLogger
class ZServerHTTPResponse(HTTPResponse):
"Used to push data into a channel's producer fifo"
http_chunk=0
http_chunk_size=1024
# defaults
_http_version='1.0'
_http_connection='close'
_server_version='Zope/2.0 ZServer/2.0'
def __str__(self,
html_search=regex.compile('<html>',regex.casefold).search,
):
if self._wrote: return '' # Streaming output was used.
headers=self.headers
body=self.body
if body:
isHTML=self.isHTML(body)
if not headers.has_key('content-type'):
if isHTML:
c='text/html'
else:
c='text/plain'
self.setHeader('content-type',c)
else:
isHTML = headers['content-type']=='text/html'
if isHTML and end_of_header_search(self.body) < 0:
lhtml=html_search(body)
if lhtml >= 0:
lhtml=lhtml+6
body='%s<head></head>\n%s' % (body[:lhtml],body[lhtml:])
else:
body='<html><head></head>\n' + body
self.setBody(body)
body=self.body
# set 204 (no content) status if 200 and response is empty
if not headers.has_key('content-type') and \
not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding') and \
self.status == 200:
self.setStatus('nocontent')
# add content length if not transfer encoded
if not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding'):
self.setHeader('content-length',len(body))
headersl=[]
append=headersl.append
status=headers.get('status', '200 OK')
# status header must come first.
append("HTTP/%s %s" % (self._http_version, status))
if headers.has_key('status'):
del headers['status']
# add zserver headers
append('Server: %s' % self._server_version)
append('Date: %s' % build_http_date(time.time()))
chunk=0
if self._http_version=='1.0':
if self._http_connection=='keep alive':
if self.headers.has_key('content-length'):
self.setHeader('Connection','close')
else:
self.setHeader('Connection','Keep-Alive')
else:
self.setHeader('Connection','close')
elif self._http_version=='1.1':
if self._http_connection=='close':
self.setHeader('Connection','close')
elif not self.headers.has_key('content-length'):
if self.headers.has_key('transfer-encoding'):
if self.headers['transfer-encoding'] != 'chunked':
self.setHeader('Connection','close')
else:
chunk=1
elif self.http_chunk:
self.setHeader('Transfer-Encoding','chunked')
chunk=1
else:
self.setHeader('Connection','close')
if chunk:
chunked_body=''
while body:
chunk=body[:self.http_chunk_size]
body=body[self.http_chunk_size:]
chunked_body='%s%x\r\n%s\r\n' % (chunked_body, len(chunk), chunk)
chunked_body='%s0\r\n\r\n' % chunked_body
body=chunked_body
for key, val in headers.items():
if string.lower(key)==key:
# only change non-literal header names
key="%s%s" % (string.upper(key[:1]), key[1:])
start=0
l=string.find(key,'-',start)
while l >= start:
key="%s-%s%s" % (key[:l],string.upper(key[l+1:l+2]),key[l+2:])
start=l+1
l=string.find(key,'-',start)
append("%s: %s" % (key, val))
if self.cookies:
headersl=headersl+self._cookie_list()
headersl[len(headersl):]=[self.accumulated_headers, body]
return string.join(headersl,'\r\n')
_tempfile=None
_tempstart=0
def write(self,data):
"""\
Return data as a stream
HTML data may be returned using a stream-oriented interface.
This allows the browser to display partial results while
computation of a response to proceed.
The published object should first set any output headers or
cookies on the response object.
Note that published objects must not generate any errors
after beginning stream-oriented output.
"""
stdout=self.stdout
if not self._wrote:
l=self.headers.get('content-length', None)
if l is not None:
try:
if type(l) is type(''): l=string.atoi(l)
if l > 128000:
self._tempfile=tempfile.TemporaryFile()
except: pass
stdout.write(str(self))
self._wrote=1
if not data: return
t=self._tempfile
if t is None:
stdout.write(data)
else:
l=len(data)
b=self._tempstart
e=b+l
t.seek(b)
t.write(data)
self._tempstart=e
stdout.write(file_part_producer(t,b,e), l)
# XXX add server headers, etc to write()
def _finish(self):
stdout=self.stdout
t=self._tempfile
if t is not None:
stdout.write(file_close_producer(t), 0)
self._tempfile=None
stdout.finish(self)
stdout.close()
self.stdout=None # need to break cycle?
self._request=None
class ChannelPipe:
"""Experimental pipe from ZPublisher to a ZServer Channel.
Should only be used by one thread at a time. Note also that
the channel will be being handled by another thread, thus
restrict access to channel to the push method only."""
def __init__(self, request):
self._channel=request.channel
self._request=request
self._shutdown=0
self._close=0
self._bytes=0
def write(self, text, l=None):
if l is None: l=len(text)
self._bytes=self._bytes + l
self._channel.push(text,0)
Wakeup()
def close(self):
DebugLogger.log('A', id(self._request),
'%s %s' % (self._request.reply_code, self._bytes))
self._channel.push(LoggingProducer(self._request, self._bytes), 0)
self._channel.push(CallbackProducer(self._channel.done), 0)
self._channel.push(CallbackProducer(lambda t=('E', id(self._request)): apply(DebugLogger.log, t)), 0)
if self._shutdown:
try: r=self._shutdown[0]
except: r=0
sys.ZServerExitCode=r
self._channel.push(ShutdownProducer(), 0)
Wakeup(lambda: asyncore.close_all())
else:
if self._close: self._channel.push(None, 0)
Wakeup()
self._channel=None #need to break cycles?
self._request=None
def flush(self): pass # yeah, whatever
def finish(self, response):
if response.headers.get('bobo-exception-type', '') == \
'exceptions.SystemExit':
r=response.headers.get('bobo-exception-value','0')
try: r=string.atoi(r)
except: r = r and 1 or 0
self._shutdown=r,
if response.headers.get('connection','') == 'close' or \
response.headers.get('Connection','') == 'close':
self._close=1
self._request.reply_code=response.status
def retry(self):
"""Return a request object to be used in a retry attempt
"""
# This implementation is a bit lame, because it assumes that
# only stdout stderr were passed to the constructor. OTOH, I
# think that that's all that is ever passed.
response=self.__class__(stdout=self.stdout, stderr=self.stderr)
response._http_version=self._http_version
response._http_connection=self._http_connection
response._server_version=self._server_version
return response
def make_response(request, headers):
"Simple http response factory"
# should this be integrated into the HTTPResponse constructor?
response=ZServerHTTPResponse(stdout=ChannelPipe(request), stderr=StringIO())
response._http_version=request.version
response._http_connection=string.lower(
http_server.get_header(http_server.CONNECTION, request.header))
response._server_version=request.channel.server.SERVER_IDENT
return response
class file_part_producer:
"producer wrapper for part of a file[-like] objects"
# match http_channel's outgoing buffer size
out_buffer_size = 1<<16
def __init__(self, file, start, end):
self.file=file
self.start=start
self.end=end
def more(self):
end=self.end
if not end: return ''
start=self.start
if start >= end: return ''
file=self.file
file.seek(start)
size=end-start
bsize=self.out_buffer_size
if size > bsize: size=bsize
data = file.read(size)
if data:
start=start+len(data)
if start < end:
self.start=start
return data
self.end=0
del self.file
return data
class file_close_producer:
def __init__(self, file):
self.file=file
def more(self):
file=self.file
if file is not None:
file.close()
self.file=None
return ''
##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""
ZServer HTTPResponse
The HTTPResponse class takes care of server headers, response munging
and logging duties.
"""
import time, regex, string, sys, tempfile
from cStringIO import StringIO
from ZPublisher.HTTPResponse import HTTPResponse, end_of_header_search
from medusa.http_date import build_http_date
from PubCore.ZEvent import Wakeup
from medusa.producers import hooked_producer
from medusa import http_server, asyncore
from Producers import ShutdownProducer, LoggingProducer, CallbackProducer
import DebugLogger
class ZServerHTTPResponse(HTTPResponse):
"Used to push data into a channel's producer fifo"
http_chunk=0
http_chunk_size=1024
# defaults
_http_version='1.0'
_http_connection='close'
_server_version='Zope/2.0 ZServer/2.0'
def __str__(self,
html_search=regex.compile('<html>',regex.casefold).search,
):
if self._wrote: return '' # Streaming output was used.
headers=self.headers
body=self.body
if body:
isHTML=self.isHTML(body)
if not headers.has_key('content-type'):
if isHTML:
c='text/html'
else:
c='text/plain'
self.setHeader('content-type',c)
else:
isHTML = headers['content-type']=='text/html'
if isHTML and end_of_header_search(self.body) < 0:
lhtml=html_search(body)
if lhtml >= 0:
lhtml=lhtml+6
body='%s<head></head>\n%s' % (body[:lhtml],body[lhtml:])
else:
body='<html><head></head>\n' + body
self.setBody(body)
body=self.body
# set 204 (no content) status if 200 and response is empty
if not headers.has_key('content-type') and \
not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding') and \
self.status == 200:
self.setStatus('nocontent')
# add content length if not transfer encoded
if not headers.has_key('content-length') and \
not headers.has_key('transfer-encoding'):
self.setHeader('content-length',len(body))
headersl=[]
append=headersl.append
status=headers.get('status', '200 OK')
# status header must come first.
append("HTTP/%s %s" % (self._http_version, status))
if headers.has_key('status'):
del headers['status']
# add zserver headers
append('Server: %s' % self._server_version)
append('Date: %s' % build_http_date(time.time()))
chunk=0
if self._http_version=='1.0':
if self._http_connection=='keep alive':
if self.headers.has_key('content-length'):
self.setHeader('Connection','close')
else:
self.setHeader('Connection','Keep-Alive')
else:
self.setHeader('Connection','close')
elif self._http_version=='1.1':
if self._http_connection=='close':
self.setHeader('Connection','close')
elif not self.headers.has_key('content-length'):
if self.headers.has_key('transfer-encoding'):
if self.headers['transfer-encoding'] != 'chunked':
self.setHeader('Connection','close')
else:
chunk=1
elif self.http_chunk:
self.setHeader('Transfer-Encoding','chunked')
chunk=1
else:
self.setHeader('Connection','close')
if chunk:
chunked_body=''
while body:
chunk=body[:self.http_chunk_size]
body=body[self.http_chunk_size:]
chunked_body='%s%x\r\n%s\r\n' % (chunked_body, len(chunk), chunk)
chunked_body='%s0\r\n\r\n' % chunked_body
body=chunked_body
for key, val in headers.items():
if string.lower(key)==key:
# only change non-literal header names
key="%s%s" % (string.upper(key[:1]), key[1:])
start=0
l=string.find(key,'-',start)
while l >= start:
key="%s-%s%s" % (key[:l],string.upper(key[l+1:l+2]),key[l+2:])
start=l+1
l=string.find(key,'-',start)
append("%s: %s" % (key, val))
if self.cookies:
headersl=headersl+self._cookie_list()
headersl[len(headersl):]=[self.accumulated_headers, body]
return string.join(headersl,'\r\n')
_tempfile=None
_tempstart=0
def write(self,data):
"""\
Return data as a stream
HTML data may be returned using a stream-oriented interface.
This allows the browser to display partial results while
computation of a response to proceed.
The published object should first set any output headers or
cookies on the response object.
Note that published objects must not generate any errors
after beginning stream-oriented output.
"""
stdout=self.stdout
if not self._wrote:
l=self.headers.get('content-length', None)
if l is not None:
try:
if type(l) is type(''): l=string.atoi(l)
if l > 128000:
self._tempfile=tempfile.TemporaryFile()
except: pass
stdout.write(str(self))
self._wrote=1
if not data: return
t=self._tempfile
if t is None:
stdout.write(data)
else:
l=len(data)
b=self._tempstart
e=b+l
t.seek(b)
t.write(data)
self._tempstart=e
stdout.write(file_part_producer(t,b,e), l)
# XXX add server headers, etc to write()
def _finish(self):
stdout=self.stdout
t=self._tempfile
if t is not None:
stdout.write(file_close_producer(t), 0)
self._tempfile=None
stdout.finish(self)
stdout.close()
self.stdout=None # need to break cycle?
self._request=None
class ChannelPipe:
"""Experimental pipe from ZPublisher to a ZServer Channel.
Should only be used by one thread at a time. Note also that
the channel will be being handled by another thread, thus
restrict access to channel to the push method only."""
def __init__(self, request):
self._channel=request.channel
self._request=request
self._shutdown=0
self._close=0
self._bytes=0
def write(self, text, l=None):
if l is None: l=len(text)
self._bytes=self._bytes + l
self._channel.push(text,0)
Wakeup()
def close(self):
DebugLogger.log('A', id(self._request),
'%s %s' % (self._request.reply_code, self._bytes))
self._channel.push(LoggingProducer(self._request, self._bytes), 0)
self._channel.push(CallbackProducer(self._channel.done), 0)
self._channel.push(CallbackProducer(
lambda t=('E', id(self._request)): apply(DebugLogger.log, t)), 0)
if self._shutdown:
try: r=self._shutdown[0]
except: r=0
sys.ZServerExitCode=r
self._channel.push(ShutdownProducer(), 0)
Wakeup(lambda: asyncore.close_all())
else:
if self._close: self._channel.push(None, 0)
Wakeup()
self._channel=None #need to break cycles?
self._request=None
def flush(self): pass # yeah, whatever
def finish(self, response):
if response.headers.get('bobo-exception-type', '') == \
'exceptions.SystemExit':
r=response.headers.get('bobo-exception-value','0')
try: r=string.atoi(r)
except: r = r and 1 or 0
self._shutdown=r,
if response.headers.get('connection','') == 'close' or \
response.headers.get('Connection','') == 'close':
self._close=1
self._request.reply_code=response.status
def retry(self):
"""Return a request object to be used in a retry attempt
"""
# This implementation is a bit lame, because it assumes that
# only stdout stderr were passed to the constructor. OTOH, I
# think that that's all that is ever passed.
response=self.__class__(stdout=self.stdout, stderr=self.stderr)
response._http_version=self._http_version
response._http_connection=self._http_connection
response._server_version=self._server_version
return response
def make_response(request, headers):
"Simple http response factory"
# should this be integrated into the HTTPResponse constructor?
response=ZServerHTTPResponse(stdout=ChannelPipe(request), stderr=StringIO())
response._http_version=request.version
response._http_connection=string.lower(
http_server.get_header(http_server.CONNECTION, request.header))
response._server_version=request.channel.server.SERVER_IDENT
return response
class file_part_producer:
"producer wrapper for part of a file[-like] objects"
# match http_channel's outgoing buffer size
out_buffer_size = 1<<16
def __init__(self, file, start, end):
self.file=file
self.start=start
self.end=end
def more(self):
end=self.end
if not end: return ''
start=self.start
if start >= end: return ''
file=self.file
file.seek(start)
size=end-start
bsize=self.out_buffer_size
if size > bsize: size=bsize
data = file.read(size)
if data:
start=start+len(data)
if start < end:
self.start=start
return data
self.end=0
del self.file
return data
class file_close_producer:
def __init__(self, file):
self.file=file
def more(self):
file=self.file
if file is not None:
file.close()
self.file=None
return ''
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