Hooks for methods other than GET/POST on port 80?
Hi! I am looking for a way in Zope to receive HTTP-requests with, eg, DELETE and PUT in the object method. Zope (2.7.x) seems to intercept these and issue "Not authorised". (I check REQUEST.REQUEST_METHOD to decide what to do in the object's method. POST and GET are fine, but others are blocked in Zope.) I do not want to do it "the right way" and create special kind of ZServer (like for WebDAV), I just want Zope to let me decide what to do if certain method is requested from a certain method of an object. An example. I want object X to receive a message Y with request method DELETE. This is the raw thing the server need to receive: DELETE /path/to/object/X/Y HTTP/1.1 Host: myhost.myorg.org Content-Type: application/myprotocol+xml Of course, I have a product Z which has this class: class Z: ... def Y(self, REQUEST): if REQUEST.REQUEST_METHOD == 'POST': # no problem elif REQUEST.REQUEST_METHOD == 'DELETE': # this is never reached... Zope doesnt call Y What do I tweak so object X will receive Y on a usual HTTP port 80? THANKS! Sincerely yours, Roman Suzi -- rnd@onego.ru =\= My AI powered by GNU/Linux RedHat 7.3
Am Samstag, den 03.12.2005, 21:56 +0200 schrieb Roman Suzi:
Hi!
...
DELETE /path/to/object/X/Y HTTP/1.1 Host: myhost.myorg.org Content-Type: application/myprotocol+xml
Of course, I have a product Z which has this class:
class Z: ...
def Y(self, REQUEST): if REQUEST.REQUEST_METHOD == 'POST': # no problem elif REQUEST.REQUEST_METHOD == 'DELETE': # this is never reached... Zope doesnt call Y
What do I tweak so object X will receive Y on a usual HTTP port 80? THANKS!
It seems you want the action and not the original request. When you use if ... why not just define manage_delObjects on your class? This works for PUT and most other request types as well. HTH Tino
Tino Wildenhain wrote:
Am Samstag, den 03.12.2005, 21:56 +0200 schrieb Roman Suzi:
Hi!
...
DELETE /path/to/object/X/Y HTTP/1.1 Host: myhost.myorg.org Content-Type: application/myprotocol+xml
Of course, I have a product Z which has this class:
class Z: ...
def Y(self, REQUEST): if REQUEST.REQUEST_METHOD == 'POST': # no problem elif REQUEST.REQUEST_METHOD == 'DELETE': # this is never reached... Zope doesnt call Y
What do I tweak so object X will receive Y on a usual HTTP port 80? THANKS!
It seems you want the action and not the original request.
When you use if ... why not just define manage_delObjects on your class?
No, I want to control whatever is done. That is, I want to intercept that request.
This works for PUT and most other request types as well.
HTH Tino
Roman Suzi wrote at 2005-12-3 21:56 +0200:
I am looking for a way in Zope to receive HTTP-requests with, eg, DELETE and PUT in the object method. Zope (2.7.x) seems to intercept these and issue "Not authorised".
"DELETE" and "PUT" are WebDAV methods (and defined in "webdav.Resource.Resouce"). You have the usual hook: override the definition in your class. Do not forget to assign a new permission to your new method definitions (otherwise, the 'Unauthorized' will remain). -- Dieter
Dieter Maurer wrote:
Roman Suzi wrote at 2005-12-3 21:56 +0200:
I am looking for a way in Zope to receive HTTP-requests with, eg, DELETE and PUT in the object method. Zope (2.7.x) seems to intercept these and issue "Not authorised".
"DELETE" and "PUT" are WebDAV methods (and defined in "webdav.Resource.Resouce").
You have the usual hook: override the definition in your class. Do not forget to assign a new permission to your new method definitions (otherwise, the 'Unauthorized' will remain).
Advice taken, thanks. However, when I tried to do it and Zope freezes (that is, the whole Zope server freezes!). never saw anything like that before... After restarting Zope the same thing happened again. Probably it's a bug. Roman Suzi
Dieter Maurer wrote:
Roman Suzi wrote at 2005-12-3 21:56 +0200:
I am looking for a way in Zope to receive HTTP-requests with, eg, DELETE and PUT in the object method. Zope (2.7.x) seems to intercept these and issue "Not authorised".
"DELETE" and "PUT" are WebDAV methods (and defined in "webdav.Resource.Resouce").
You have the usual hook: override the definition in your class. Do not forget to assign a new permission to your new method definitions (otherwise, the 'Unauthorized' will remain).
This is what freezes Zope: Traceback (most recent call last): File "/usr/local/lib/python2.3/logging/__init__.py", line 674, in emit msg = self.format(record) File "/usr/local/lib/python2.3/logging/__init__.py", line 567, in format return fmt.format(record) File "/usr/local/lib/python2.3/logging/__init__.py", line 369, in format s = s + self.formatException(record.exc_info) File "/usr/local/lib/python2.3/logging/__init__.py", line 342, in formatException traceback.print_exception(ei[0], ei[1], ei[2], None, sio) File "/usr/local/lib/python2.3/traceback.py", line 123, in print_exception print_tb(tb, limit, file) File "/usr/local/lib/python2.3/traceback.py", line 68, in print_tb line = linecache.getline(filename, lineno) File "/usr/local/lib/python2.3/linecache.py", line 14, in getline lines = getlines(filename) RuntimeError: maximum recursion depth exceeded Regards, Roman Suzi
Roman Susi wrote:
This is what freezes Zope:
What do you mean by freezes? how did you cause this to happen?
Traceback (most recent call last): File "/usr/local/lib/python2.3/logging/__init__.py", line 674, in emit msg = self.format(record) File "/usr/local/lib/python2.3/logging/__init__.py", line 567, in format return fmt.format(record) File "/usr/local/lib/python2.3/logging/__init__.py", line 369, in format s = s + self.formatException(record.exc_info) File "/usr/local/lib/python2.3/logging/__init__.py", line 342, in formatException traceback.print_exception(ei[0], ei[1], ei[2], None, sio) File "/usr/local/lib/python2.3/traceback.py", line 123, in print_exception print_tb(tb, limit, file) File "/usr/local/lib/python2.3/traceback.py", line 68, in print_tb line = linecache.getline(filename, lineno) File "/usr/local/lib/python2.3/linecache.py", line 14, in getline lines = getlines(filename) RuntimeError: maximum recursion depth exceeded
We need more of the traceback, there is no repeating part here so it's impossible to see what's causing the infinite recursion... Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk
Roman Susi wrote at 2005-12-5 16:51 +0200:
Dieter Maurer wrote: ... This is what freezes Zope:
Traceback (most recent call last): .... File "/usr/local/lib/python2.3/traceback.py", line 68, in print_tb line = linecache.getline(filename, lineno) File "/usr/local/lib/python2.3/linecache.py", line 14, in getline lines = getlines(filename) RuntimeError: maximum recursion depth exceeded
I know of an error in Python's "linecache.py". I am not sure whether this error causes an infinite recursion. I doubt it. Instead, it probably raised another exception but maybe that triggers the recursion in your application. The error I know is caused by an inconsistent filename in the "*.pyc" file. Usually, this filename is absolute, but in some cases can be relative in a funny (not yet understood way) and later confuse Python. The problem I know disappeared when I deleted all "*.pyc" files. -- Dieter
participants (5)
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Chris Withers -
Dieter Maurer -
Roman Susi -
Roman Suzi
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Tino Wildenhain