January 2000 - Zope - Zope lists

New SybaseDA, memory leaks etc.
by Alex Schonfeld 27 Jan '00

27 Jan '00

Just wanted to mention I got results similar to Sascha Matzke under WinNT with the newest Zope release (2.1.3). My setup was a little different: I tried testing using Socrates to do multiple connections and request around 5000 documents using 10 connections requesting docs with a 50ms delay between requests. This caused python to start serious page faulting and grab around 100megs+ over 2-3 minutes. Eventually it ran out of memory and crashed. The old da doesn't cause this problem under a similar test. Some stats on the tests I tried: 1. tried it with transactions on and off... with similar results 2. sometimes there is a traceback and sometimes not (see below) 3. Zope version: Zope 2.1.0b2 (binary release, python 1.5.2, win32-x86) 4. Python version: 1.5.2 (#0, Jul 30 1999, 09:52:18) [MSC 32 bit (Intel)] 5. System Platform: win32 6. limited Zope threads to 10 in all tests 7. cache was set to 60 secs (not sure if that is relevant..) 8. the sybase server was on the same lan and didn't experience any serious problems (maybe some slow down, but since no-one complained I suspect it was still useable.. :) I suspect (and have been told) that it has to do with the C code part of the DA which is not freeing connections to Sybase correctly or maybe not freeing all the memory allocated in buffers for all the data it requests. It might be that the python code is not always calling the correct methods in the dll to close the connection. The testing tool I used for windows was at: http://www.morphtech.com/morphtech/socrates/home.morph (seems to be gone now) Some other tools: http://www.softwareqatest.com/qatweb1.html#LOAD Sincerely, Alex. One of the trace backs looked like this: *********************************** ------ 2000-01-25T03:18:31 PROBLEM(100) ZServer Computing default hostname ------ 2000-01-25T03:18:31 INFO(0) ZServer Medusa (V1.13) started at Tue Jan 25 12:18:31 2000 Hostname: PEAR Port:8080 ------ 2000-01-25T03:18:31 INFO(0) ZServer FTP server started at Tue Jan 25 12:18:31 2000 Authorizer:None Hostname: pear Port: 8021 ------ 2000-01-25T03:18:31 INFO(0) ZServer Monitor Server (V1.5) started on port 8099 ------ Traceback (innermost last): File "z2.py", line 595, in ? asyncore.loop() File "C:\Program Files\Python\Lib\asyncore.py", line 107, in loop if use_poll: File "C:\Program Files\Python\Lib\asyncore.py", line 55, in poll (r,w,e) = select.select (r,w,e, timeout) SystemError: NULL result without error in call_object ************************ 1010011010 0 Digital Garage 1 Alex Schonfeld 0 alex(a)garage.co.jp - pear 1 090-4429-2323

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content getting a new line appended.
by Anthony Baxter 27 Jan '00

27 Jan '00

We've got an application that sends down an audio file to the user. It does this from an external method, that essentially does something like: RESPONSE['content-type'] = "audio/x-wav" out = fp.read() # fp is filehandle of data. return out Somewhere between Zope 1.10 and Zope 2.1, something changed such that the content is getting a newline appended to it. This is breaking certain audio players (for unknown reasons - I'd have thought that they'd ignore it... but anyway). Is anyone aware of anything like this that might have changed? Pointers on where to look? ta, Anthony

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use of DTML in object property values?
by Darran Edmundson 27 Jan '00

27 Jan '00

I recall this question was posted a few months ago on the list but I don't recall a response ... Is it possible to include DTML in object property values (string or text entries)? Why would you want this? Imagine that the variable "sitevar1" is available via acquisition throughout the ZODB. If content updaters for the site know that sitevar1 is defined, they can avoid hard-coding this value when editing properties and instead use the snippet <dtml-var sitevar1>. Cheers, Darran.

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Removing .gif extensions from multiple files
by Marsh Murphy 27 Jan '00

27 Jan '00

Hello, I'm having problems with file extensions on my images in Zope. Currently, I'm creating images on my Mac, then using Anarchie to FTP them into place in Zope on our Linux server. This works fine. But I don't want my images to have file extensions (.gif, .jpg), because there are Python / period problems when I call my images using <dtml-var imageName>. But if I remove the extensions prior to FTPing them into place, Zope doesn't recognize them as images, rather as generic files. So I have to get Zope to think of 'imageName' as a gif. Several solutions present themselves, in order of attractiveness: 1. I could have Zope rip '.gif' or '.jpg' extensions off all images in a certain directory. 2. I could have Zope convert all generic files in a certain directory to images of type 'gif'. 3. I could have Zope do the FTPing itself, _from_ a place, and wish fervently that file-type would somehow be communicated. 4. I could opt to not use <dtml-var imageName>, and thus avoid the Python / period problems. This is a crappy solution. This seems like a really basic kind of issue, so I feel like I'm missing something obvious. I mean, everybody has to get images into directories, right? Thanks, marsh -- marsh murphy web projects manager emergence|by design tel: 780.413.6397 mailto:marsh@emergence.com http://www.emergence.com

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HELP: can't get Admin logon to work!!!
by Robert Geiger 27 Jan '00

27 Jan '00

I can't seem to get the superuser logon to work. I have tried the zpasswd.py utility, restarted, etc. ... several times. I try to log on from the localhost or other machines on LAN and I can't get in. How can I definitively RESET the damned superuser password in the access file??? Thanks for your help.

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Roxen and incorrect Content-Length: header
by Bruce Elrick 27 Jan '00

27 Jan '00

Is anyone aware of Roxen+Zope returning incorrect Content-Length: header information? I've searched the list archives and found Bill's comment about Roxen needing to be patched, but it doesn't indicate where the patch comes from, what the bug is (is it this one?), or what versions of Roxen the bug is in. Background: Linux (RedHat 6.1) Using roxen-1.3.122-2mdk.i586.rpm from http://www.ls-la.net/roxen/roxen-1.3.122-2mdk.i586.rpm (was previously using tar.gz binaries of 1.3.122 from www.roxen.com) Using Zope 2.1.2 compiled from source. Using python-1.5.2-7.1386.rpm from Redhat Set up Roxen according to magnus: http://www.zope.org/Members/magnus/Roxen Bill Anderson: http://www.zope.org/Members/Bill/Documentation/RoxenZope I am able to use Roxen and Zope, but some pages (some but not all with RXML tags (<gtext>)) get truncated. If I go directly to Zope, the page has Content-Length: of 4202 bytes: >>> ZPublisher.Zope('Personnel/WorkWithEmployees/AddEmployeeEmailAddressForm', u='xxxx:yyyy') Status: 200 OK X-Powered-By: Zope (www.zope.org) Python (www.python.org) Content-Length: 4202 Content-Type: text/html ... If I go the the page with Netscape then look at the page info, the Content-Length: is 4202 bytes. Looking at the page source, it is truncated. Save the page to disk the size of the file is 4202 bytes. $ ls -l AddEmployeeEmailAddressForm.netscape -rw-rw-r-- 1 belrick belrick 4202 Jan 26 13:15 AddEmployeeEmailAddressForm.netscape If I grab the page with wget, the Content-Length: is 4181 but it successfully downloads 4422 bytes: $wget --verbose --http-user xxxx --http-passwd yyyy http://pallas/Personnel/WorkWithEmployees/AddEmployeeEmailAddressForm --13:28:15-- http://pallas:80/Personnel/WorkWithEmployees/AddEmployeeEmailAddressForm => `AddEmployeeEmailAddressForm' Connecting to pallas:80... connected! HTTP request sent, awaiting response... 401 Unauthorized Connecting to pallas:80... connected! HTTP request sent, awaiting response... 200 OK Length: 4,181 [text/html] 0K -> .... [105%] 13:28:15 (308.45 KB/s) - `AddEmployeeEmailAddressForm.4' saved [4422/4181]) If I truncate the file obtained with wget at 4202 bytes and compare it with the file saved from Netscape, they are identical: $ dd bs=1 count=4202 if=AddEmployeeEmailAddressForm of=AddEmployeeEmailAddressForm.wget.trunc $ diff AddEmployeeEmailAddressForm.wget.trunc AddEmployeeEmailAddressForm.netscape (no diff) I've tried using the --save-header option to wget to see if there is anything funny in the header and this is what it shows: HTTP/1.0 200 OK X-Powered-By: Zope (www.zope.org) Python (www.python.org) Content-Length: 4181 Content-Type: text/html Server: Mystery Server/8.7 Now, I can speculate that the difference between the 4202 and 4181 is wget using HTTP/1.0 and Netscape using HTTP/1.1 (does it?). What I can't explain is why Roxen does not modify the Content-Length: when it processes things like <gtext>. The 4422 bytes that wget successfully downloads is the entire page. Cheers... Bruce -- Bruce Elrick, Ph.D. Saltus Technology Consulting Group Personal: belrick(a)home.com IBM Certified Specialist Business: belrick(a)saltus.ab.ca ADSM, AIX Support, RS/6000 SP, HACMP

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Re: [Zope] Help! Cascade initialization and acquisition
by Anthony Baxter 27 Jan '00

27 Jan '00

Look at the SiteAccess product - it provides a hook that allows you to do exactly this. http://www.zope.org/Members/4am/SiteAccess Anthony >>> "Hung Jung Lu" wrote > Hi, > > I guess this is a well-known problem and must have > a well-known answer. > > I have subfolders inside folders and sub-subfolders > inside subfolders, etc. > > I would like to store some initialization actions > in a method called init_dtml inside some of these > folders. (Much like constructors.) Now, when a user > visit the sub-sub-...-subfolder, before displaying > the index_html, I would like to invoke these init_dtml > methods from the top of the folders down to the > sub-sub-...-subfolder. > > All this is much like the cascade constructors in > object-oriented programming languages: you invoke > the base class constructor before the subclass > constructor. > > The big question is: how do I do this? I have > cracked my head without reaching a simple solution. > Sometimes acquistion is just too evil. :) > > (Note that some of the folders may not have init_dtml.) > > regards, > > Hung Jung > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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Help! Cascade initialization and acquisition
by Hung Jung Lu 27 Jan '00

27 Jan '00

Hi, I guess this is a well-known problem and must have a well-known answer. I have subfolders inside folders and sub-subfolders inside subfolders, etc. I would like to store some initialization actions in a method called init_dtml inside some of these folders. (Much like constructors.) Now, when a user visit the sub-sub-...-subfolder, before displaying the index_html, I would like to invoke these init_dtml methods from the top of the folders down to the sub-sub-...-subfolder. All this is much like the cascade constructors in object-oriented programming languages: you invoke the base class constructor before the subclass constructor. The big question is: how do I do this? I have cracked my head without reaching a simple solution. Sometimes acquistion is just too evil. :) (Note that some of the folders may not have init_dtml.) regards, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Mail Form: How to add attachments
by Martin Sandberg 27 Jan '00

27 Jan '00

I am a Zope newbie, who just made a mail form within Zope. In this mail form I have the following inputs: * To (recipient's email) * Subject: * From (sender's email) * Text I also have a "send" button, which sends the email. Everything works fine, but I would like to have the possibility to send emails with attachments from the mail form. The user should have the possibility to add these attachments to the email direct from his local PC. Does anyone have an easy solution? Saludos, Martin Sandberg --

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manage_addFile
by Alice Gutman 26 Jan '00

26 Jan '00

I'm trying to take a file that is input to a form and create a file object. However, the Content Type is always listed as "text/plain", and the content is simply the path of the original file, instead of the file itself. Here is my code: <dtml-call "manage_addFolder('foo')"> <dtml-call "foo.manage_addFile('bar', REQUEST['sgmlfile'])"> and here is the form: <form action="howto_add"><table> <tr><th>Author</th> <td><input type=text name=author></td> </tr> <tr><th>SGML file</th? <td><input type-file name=sgmlfile></td> </tr> <tr><td></td><td><input type=submit value=" Submit "></td></tr> </table></form> Does anybody have any suggestions as to what I might be doing wrong? Also, I tried looking through the source code for manage_addFile to see how it works, and I couldn't find it. Can anyone tell me where it is? Thanks in advance, Alice

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