- Zope - Zope lists

RE: [Zope] Image Upload detection
by Alexander Staubo 17 Jun '99

17 Jun '99

There may be an easier way, but here's how I'm doing it. In the DTML Method that is the target of the post, do something like this (untested):        This will determine the file size of the file and if non-zero, will add it to the current folder. The second seek might not be necessary (it depends on whether manage_addImage() or whatever you do with the file does it). PS: It's multipart _encoding_, not encryption. Basically the browser just base64 encodes the data and sends it as text. HTTP/MIME supports the "binary" content transfer encoding for a multipart value, which is roughly 12.5% more efficient compared to base64, although I have never checked whether modern browsers support this. -- Alexander Staubo http://www.mop.no/~alex/ "`Ford, you're turning into a penguin. Stop it.'" --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_ >-----Original Message----- >From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Phil >Grove >Sent: 17. juni 1999 19:26 >To: zope(a)zope.org >Subject: [Zope] Image Upload detection > > >Hello all, > >second question of the day. > >Right, how do you detect if an image has been provided for upload when >using the MULTIPART encryption method on a form? > >Basically, i have got a form that uploads three images to Zope >and the user >has the choice to upload between 1 and 3 pictures, so >obviously, i need to >check if the file boxes are empty or not. For example: > ><INPUT TYPE="file" NAME="newImg"> > >at the zope end: > > > image is here > > nothing there matey boy > > >does not work.... any ideas on how to check??? > >Please help, i am losing my hair very quickily.... > >Cheers, > >P. > >--------------------------------------------------------------------- > >Phil Grove phil.grove(a)flg21.com >Web Development 0113 2949494 >flg21 http://www.flg21.com > >--------------------------------------------------------------------- > > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://www.zope.org/mailman/listinfo/zope > >(For developer-specific issues, use the companion list, >zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

1 0

Re: [Zope] Use Amaya! Even PCWeek recommends it! -- WAS: IE/Netsc ape Authoring ... ...
by Simon Michael 17 Jun '99

17 Jun '99

Thanks for this report. Rob Page <rob.page(a)digicool.com> writes: > version -- a problem for even maintaining  type references which Amaya snarfs out. :^( I wonder if the new experimental syntax works better ?

1 0

getting at vars from <form>'s in external methods
by Roman Milner 17 Jun '99

17 Jun '99

I'm sure this is obvious - but I can't find it anywhere. How can my external method get the value of a variable set from a <form> submit? Thanks, ^Roman -- If Happy Fun Ball begins to smoke, get away immediately. Seek shelter and cover head. --------------------------------------------------------------------- Roman Milner rmilner(a)dev.tivoli.com

1 0

docs on zclasses/zproducts?
by Daniel M. Drucker 17 Jun '99

17 Jun '99

Has anyone written any howtos or docs on using/creating Z Classes?

1 0

Image Upload detection
by Phil Grove 17 Jun '99

17 Jun '99

Hello all, second question of the day. Right, how do you detect if an image has been provided for upload when using the MULTIPART encryption method on a form? Basically, i have got a form that uploads three images to Zope and the user has the choice to upload between 1 and 3 pictures, so obviously, i need to check if the file boxes are empty or not. For example: <INPUT TYPE="file" NAME="newImg"> at the zope end:  image is here  nothing there matey boy  does not work.... any ideas on how to check??? Please help, i am losing my hair very quickily.... Cheers, P. --------------------------------------------------------------------- Phil Grove phil.grove(a)flg21.com Web Development 0113 2949494 flg21 http://www.flg21.com ---------------------------------------------------------------------

1 0

RE: [Zope] Making zope work with ad serving software
by Michel Pelletier 17 Jun '99

17 Jun '99

> -----Original Message----- > From: Andrew Bunner [mailto:bunner@massquantities.com] > Sent: Thursday, June 17, 1999 12:09 PM > To: zope(a)zope.org > Cc: Paul Willingham > Subject: [Zope] Making zope work with ad serving software > > > > First of all, thank you to everyone who's expressed > interest in helping us > with the EliteFitness.com project! > > We've been using a piece of ad serving software called > Central Ad Pro. It can > be invoked via two mechanisms... > >  > > -or- > > <img > src="http://mydomain.com/cgi-bin/getimage.cgi/unique?ACCOUNT=m y_account&BANN > ER=my_banner"></a> > > Now, if you want to serve an HTML "banner", you have to you > use the SSI > mechanism... at least until we all have XML capable browsers > and their fancy > X-LINKS <g> > > My question is, what is an analogous way to embed the > output of a CGI into a > page served by Zope that will let us generate "useful" web > logs? I read the > thread about pulling the links off LinuxToday, so I > understand that there are > HTTP getting functions. Right. > > I'm sure it's do-able, my main concern is that we're still > able to analyze > the click-through ratios of the banners! This makes me think > we will have to > use Zope with Apache. > Yes but the Apache logs won't log the *outgoing* HTTP GET that the 'linuxtoday'ish external method will use to get your ad. In that case, you can extend the external method to do it's own logging to a nice common format you can analyze externaly. In fact, you could even INSERT a record into an SQL database (this might be to heavy weight for you though). Note that I'll be thinking in the next couple of weeks about a 'virtual' like built in method to do outgoing HTTP GETs on URLs, this will probably not be seen until 2.0 if at all. > Is PCGI mutually exclusive with mod_perl? We already have > mod_perl compiled > into Apache since it servers another (non-Zope) site on the > same machine. > I can't see why they wouldn't play nice together. -Michel > Does anyone have any thoughts on this? > > -- Andrew > > Andrew Bunner > President, Mass Quantities, Inc. > bunner(a)massquantities.com > Professional Supplements for the Perfect Physique > http://www.massquantities.com > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

1 0

RE: [Zope] Zope performance too low ?
by Michel Pelletier 17 Jun '99

17 Jun '99

> -----Original Message----- > From: Alexander Staubo [mailto:alex@mop.no] > Sent: Thursday, June 17, 1999 11:38 AM > To: Zope Mailing List (E-mail) > Subject: RE: [Zope] Zope performance too low ? > > > I'm not familiar enough to Linux to say this for sure, but my guess is > that it _would_ be using a high-resolution system timer. > Nope, 'ab' uses gettimeofday(2) to return microseconds, and then does an internal divide by 1000 to return milliseconds. This is done all with itegers however, I suspect there is a loss of precision. >> Ouch. These extremely low transfer rates bother me. The theoretical >> bandwidth on a local machine transfer should be way, way >higher. Otoh, >> your document was very small, so the stop/start, connect/teardown >> margins would be relatively high. I'd like to see benchmarks >> with longer >> (>3KB) documents. >> I redid the same benchmark between two linux boxes on my desk (the same server as before, the client is RedHat 6.0 on a P166 w/ 10Mb Ethernet card) with a 36K document, and got 656 KB/sec (~36 requests/sec 147ms average response time), the effective limit on a moderately loaded 10Mb/s Ethernet lan. So, Zope can at least hose a 10 Mb Ethernet (Note, a 70MB FTP between the two machines yielded 800 KB/s, I think the amount of request/response and tcp connect/disconnect overhead could account for the other 144 KB/s, at least to a 10% margin of error). When Rob buys me a 100MB card for my other machine, I'll rerun the benchmark to see if Zope can beat the 10Mb limit. Also not that the ~37 requests per second I got (this is the average between all benchmarks) equates to approx *3.2 million hits per day* on one moderately fast PII with no fancy hardware. > Otoh, if transfers really were fast (that is, faster than > 10-11KB/sec), > and the time taken to complete a request was low, the transfer time > should explode exponentially. (Eg., 10K transferred in 10ms > should yield > a transfer rate 1MB/sec.) With abitrary precision numbers, yes. I don't have enough time to investigate why the number was so low for my initial benchmark. > > I'd be very interested to hear about what the CPU load was during the > test run. If it's anything above 5-8% (average), that's not > promising at > all. The fact that adding more concurrent sessions did not regrade > performance seems to indicate that CPU load was not too bad. Note that load average and % of time spent in the CPU are not the same thing. The load average hit 1.5 but that just means the machine was busy, not swamped. To test a a vague theory here, I fired up X, Netscape, vmware (which is a massive CPU hog) and a bunch of shells and XEmacs, and ran a 10000 request benchmark. The machine ran smoothly, vmware didn't stutter or pause, X switched quickly between virtual screens, and XEmacs didn't even appear to feel it. Meanwhile Zope happily pushed 538 Kb/s out the ether card. > > I'm planning on putting together a simple httplib-built benchmark test > just to get some raw numbers, although I'd like to try putting the > timing logic inside Zope. > We would be interested in seeing what you come up with (code and numbers). -Michel

1 0

RE: [Zope] Use Amaya! Even PCWeek recommends it! -- WAS: IE/Netsc ape Authoring ... ...
by Rob Page 17 Jun '99

17 Jun '99

<SNIP> > Does it support FTP? AFAIK, no :^( The Help only talks about ensuring that you have the permission to PUT to the server... --Rob

1 0

RE: [Zope] Zope performance too low ?
by Alexander Staubo 17 Jun '99

17 Jun '99

>-----Original Message----- >From: Michel Pelletier [mailto:michel@digicool.com] >Sent: 17. juni 1999 16:48 >To: 'Alexander Staubo'; Zope Mailing List (E-mail) >Subject: RE: [Zope] Zope performance too low ? > > >> -----Original Message----- >> From: Alexander Staubo [mailto:alex@mop.no] >> Sent: Thursday, June 17, 1999 10:36 AM >> To: Zope Mailing List (E-mail) >> Subject: RE: [Zope] Zope performance too low ? >> >> >> >-----Original Message----- >> >From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of >> >Michel Pelletier >> >> Ouch. These extremely low transfer rates bother me. The theoretical >> bandwidth on a local machine transfer should be way, way >higher. Otoh, >> your document was very small, so the stop/start, connect/teardown >> margins would be relatively high. I'd like to see benchmarks >> with longer >> (>3KB) documents. >> > >I think these numbers are low because the trasfer was so fast >and small, >the mathmatical precision of the calculation was effected. I >don't know >how 'ab' calculates time, but it probably uses some less than high >resolution system call. I'm not familiar enough to Linux to say this for sure, but my guess is that it _would_ be using a high-resolution system timer. Otoh, if transfers really were fast (that is, faster than 10-11KB/sec), and the time taken to complete a request was low, the transfer time should explode exponentially. (Eg., 10K transferred in 10ms should yield a transfer rate 1MB/sec.) I'd be very interested to hear about what the CPU load was during the test run. If it's anything above 5-8% (average), that's not promising at all. The fact that adding more concurrent sessions did not regrade performance seems to indicate that CPU load was not too bad. I'm planning on putting together a simple httplib-built benchmark test just to get some raw numbers, although I'd like to try putting the timing logic inside Zope. >> Yep, but ASP, PHP, Cold Fusion, etc. have proven to be very, >> very fast. >> > >I can see PHP being convincingly 'proven' to be fast, but I have doubts >about the validity *any* comercial company says about their closed >source program. Have there been independant benchmarks? Yes, at least for ASP, but I forget where. Perchance Byte Magazine, which used to lots of very interesting tests and benchmarks before they were gobbled up by CMP Media and folded into an online mag. :-/ -- Alexander Staubo http://www.mop.no/~alex/ "`Ford, you're turning into a penguin. Stop it.'" --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_

1 0

Re: [Zope] Login Button?
by Christopher Petrilli 17 Jun '99

17 Jun '99

> Hi all, > > What part of the Zope-mystery would I call to make use of a login button, I > know how to check for particular access, but I would like to create a page > that has certain functionality for 'anonymous' but offers more functionality > if the user authenticates after clicking on a button/link/etc. Michel gave you one option (using the current Basic Authentication) schema...in the Portal Toolkit, I've just started a redesign (to be completed today I hope) of the Membership piece... what it basically allows is you to use cookie authentication, provide your own page to initialize this cookie, but if the user doesn't have it, and they need some authentication to access a component it gets it via Basic Auth and sets the cookie... This was the only scheme we could come up with that would work with ALL access methods. Chris -- | Christopher Petrilli Digital Creations, Inc. | petrilli(a)digicool.com http://www.digicool.com

1 0