Squeak-dev August 2001

squeak-dev@lists.squeakfoundation.org

187 participants
488 discussions

Help with SketchMorphs...
by Henry.Bygott＠Colorado.EDU 02 Aug '01

02 Aug '01

Is there some way I can set up a sketchMorph so that I can change its (or even better yet, parts of it's) color with a simple command from within my code? A way to run replace color without the prompts, or just a plain color: method? THanks Kyle PS- I'm not entirely sure this is the best place to be posting this question - is there a more general forum anybody knows of that would be better suited to this type of inquiry?

2 1

Squeak Attack Framework
by Stefan Krecher 02 Aug '01

02 Aug '01

Hi! Excuse my bad english. I have the idea to construct a "Framework" to support Security-Issues. As somebody who's interested in Network-Security and loves to program in Smalltalk, i think it would be wonderfull to have something like the nasl (nessus attack scripting language - www.nessus.org) - for Smalltalk. The Framework should implement classes that can easily be used to build exploits for known security-holes and to test Network- Security. As a Smalltalk-Platform I think Squeak (www.squeak.org) would be great. I guess it should be simple to build exploits like buffer overflows, format-string-attacks, cgi-vulnarabilities or all those IIS-vulns in Squeak-Smalltalk. And with enough energy it should be possible to implement low-level network attacks with packet-capturing and packet- injection. At this point Squeak has to be extended (primitives, written in C/C++). Ok. This is just a first "brainstorming". If anyone has Ideas or comments or want's to join this project - drop me a line or post it here. Bye, Stefan

1 0

RE: FFI broken ?
by Torsten.Bergmann＠phaidros.com 02 Aug '01

02 Aug '01

>Win32Shell new shellOpen: 'C:\' > >Works for me on Windows NT 4.0 (service pack 6a) with the latest alpha >image >& VM (from Andreas Raab). Works for me too (with latest DirectX-VM) and all 3.1 alpha changes on a Win2000 box Torsten

1 0

Re: Please play with Nebraska server
by Russell Allen 02 Aug '01

02 Aug '01

It doesn't appear to be particularly stable :) I've put it on a script so that it should restart if the VM crashes; if the nebraska server crashes or the image freezes then I would appreciate an email telling me (russell.allen(a)firebirdmedia.com) If anyone has any good ideas about how to tell if the server is running please tell me! Oh, if you do manage to visit, please leave a "I waz 'ere" message :) :) Russell Karl Ramberg <karl.ramberg(a)chello.se> wrote: > Thanks for doing this:-) > It seems down at the moment. Is there a preffered > way of telling you stuff like this ? > Karl > > Russell Allen wrote: > > > > Hi, > > > > I've set up a nebraska server at squeakspace.com to play with. If you > > want to play with nebraska, this is your chance :) > > > > To connect, go TheWorldMenu>>new > > morph...>>Experimental>>EToySenderMorph, and replace the IP address with > > 'squeakspace.com'; and press the 'S' button. > > > > It seems very slow, so good luck to anyone without a direct connection > > to the Australian backbone :) :) > > > > When it crashs I will probably attempt to start it again, if I notice. > > > > Cheers, > > > > Russell > > > > ---------------------------------------- > > Russell Allen > > > > russell.allen(a)firebirdmedia.com > > > > ----------------------------------------

1 0

Re: Morph color question
by Bob Arning 02 Aug '01

02 Aug '01

Timothy, That's an interesting one. The properties panel that changes the primary color of a morph uses #fillStyle: to do so. Normally, this would set the <color> slot of a morph, but in the case of a PolygonMorph which is open (i.e. one that is just one or more line segments), this message is implemented to change the border color instead, since <color> would be used to fill the interior and there is no interior. Cheers, Bob On Wed, 1 Aug 2001 21:23:40 -0400 Timothy Reaves <treaves(a)silverfields.com> wrote: > I am playing with Squeak and the LG tutorial series. This is the code in question: > World addMorph: > (PolygonMorph > vertices: {50@50. 200@200} > color: Color red > borderWidth: 20 > borderColor: Color red) > > As the article suggests, I play with the halos. One of them gives the option to inspect the object, and another the option to change the color. I select to change the color. I chnage it to a nice blueish green. I then select to inspect it. > > The inspector opens, and I'm looking around. I choose to see the instance variables (All inst vars). To my surprise, the color attribute is : Color red. How can this be? I changed the color with the color selector.

1 0

[OT] How We Discuss Things
by Dan Shafer 02 Aug '01

02 Aug '01

As someone who has been involved in the online world longer than I care to admit and as someone who has been deeply involved in online community for the past several years, I am intrigued by the fact that the Squeak community -- with one of the richest and most powerful environments on the planet presumably at everyone's disposal -- still feels most comfortable discussing our mutual interest in the relatively inefficient halls of a mailing list. I don't subscribe to the list by email any longer (though I spent the past year doing so) because I found it too cluttered an experience, regardless of whether I used the digest or dealt with individual emails. Following threads was very difficult at best and filtering out topics in which I was not interested proved all but impossible. Dealing with the list in quasi-discussion mode via the Yahoo! interface is a tiny bit more satisfying, but only a tiny bit. It seems to me that if we moved from the older mailing list model to a true discussion board or Swiki model for all of our discussions, we'd all be enriched and our experience would be both more effective and more efficient. But I never hear anyone suggest this, which indicates perhaps I am alone in my feeling that this is such an archaic and relatively inefficient way of dealing with such material. If Swiki isn't the right tool -- and I see some drawbacks to it that are addressed in every good discussion board tool I know about -- then perhaps a real discussion board tool is? There is a way to experiment with this. I have access to a licensed Web Crossing discussion site where we could legally and easily reflect the mailing list in discussion topics and allow people to particpiate directly on the disussion board or via email or even mix those modes. I'd be willing to set up the site and open it to people who are interested in trying that mode of communication. It wouldn't disrupt the list any, but since it's not my list I don't think I should do this without some sort of agreement from at least some other list members. Or perhaps we can write (or someone has written) a discussion board product in Squeak? Thoughts? ===== ------- Dan Shafer, Author and Community Consultant ^. .^ | Commentator on Community, Web Building, Nanotech ='= | Sr. Co-Editor, Online Community Report | Author, NanoTech, MegaQuake: Business Implications of Squeak| Nanotechnology (Spring 2002), Wiley, ISBN 047120045X ------- http://www.gui.com (major update Spring 2001) __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/

8 10

Morph color question
by Timothy Reaves 02 Aug '01

02 Aug '01

Hello all. I am playing with Squeak and the LG tutorial series. This is the code in question: World addMorph: (PolygonMorph vertices: {50@50. 200@200} color: Color red borderWidth: 20 borderColor: Color red) As the article suggests, I play with the halos. One of them gives the option to inspect the object, and another the option to change the color. I select to change the color. I chnage it to a nice blueish green. I then select to inspect it. The inspector opens, and I'm looking around. I choose to see the instance variables (All inst vars). To my surprise, the color attribute is : Color red. How can this be? I changed the color with the color selector.

1 0

Re: struggling with Celeste
by danielv＠netvision.net.il 02 Aug '01

02 Aug '01

John Hinsley <jhinsley(a)telinco.co.uk> wrote:> > It's really the difference (I think) between a Mac/Windows way of doing > things and a *nix way. On nixes, the dialler is absolutely distinct from > the Netscape or whatever application: the emailer doesn't call the > dialler (nor does it assume a diallup connection), but will complain if > it's not connected. (I guess you could say that this is part of the *nix > paradigm: rather than having each program which requires diallup to have > it's own dialler, you write one good dialler and everything else can use > it.) Thinking of just how complex a peice of software a dialler is, and > that getting Celeste to grab the password from wherever whatever *nix > dialler is in use stores it would be a wee bit tricky, I'm not *that* > surprised that they wrote it as they did. And it probably also makes it > easier to use the same code for different OSs. Even though it does > require you to enter the password twice (and there may be security > implications in this). Or in other words, the Unix way is to create a strong abstraction, and maintain it. In this case, either your apps have TCP/IP connections available, or they don't. What do your socket using applications have with your ISP authentication?!? The Mac/Windows way is to create a user experience more users will accept (and if possible, that they won't like to let go of). Specifically, the user clicks on Netscape, and gets to look at their mail (if not understanding what's going makes this user less comfortable the first time they try to use an alternative, so much the better...). Except for the (very real and important) parts parenthesized, I agree equally with both kinds of reasoning. To me it's not very important to bring the dialing into Squeak (though I've considered a quick hack using OSProcess), which would be needed to make a model that handles both connecting and email together and conviniently. > But no *nix email software will ask you for your password unless, I > guess -- you can't do this with the 4* series of Netscape -- you're > trying to grab mail from a server not belonging to the ISP you're hooked > up to. Actually, I'm pretty sure they would (ask). Do you have examples to the contrary? AFAIK - GNU/Linux at least, maintains a central list of usernames and passwords to be use in authentication when connecting to an ISP. These are called the "PAP (or CHAP) secrets" file. The same file is used whether you connect using a regular modem or an ADSL modem over ethernet, or whatever. However, there is no such common abstraction for "mail profiles". So I seriously doubt Netscape (or any of the mail clients I know for GNU/Linux) would try to autodetect my mail profile. But, having used Celeste for quite a while, I don't really know. > John Daniel

2 1

RE: FFI broken ?
by Norton, Chris 01 Aug '01

01 Aug '01

And... Win32Shell new shellOpen: 'C:\' Works for me on Windows NT 4.0 (service pack 6a) with the latest alpha image & VM (from Andreas Raab). Cheers, ---==> Chris PS> My SqueakFFIPrims.dll file is in the same directory as my image and VM. It's from Andreas Raab's website and its timestamp is 3/15/2001, 4:17 pm.

1 0

Re: [OT] How We Discuss Things
by John Hinsley 01 Aug '01

01 Aug '01

dshafer(a)yahoo.com wrote: > > Let me clarify a couple of things. > > First, I'm not advocating eliminating the mailing list at all, just adding a discussion baord to >it. > > Second, any decent discussion board these days allows you to participate via email in both >directions: receiving and replying. So really a discussion board -- done right, at least -- is a >strict superset of a mailing list with the added ability to deal with threads, archiving, keeping >discuissions on topic, filtering, etc. Thinking about it, a php wizard should be able to put something together which both pulls stuff off the email list and sends stuff to it from a discussion board (the same thing could be done for a newsgroup too) this would be great. But, as someone pointed out, the real trick is to make sure stuff doesn't get replicated. If that could be done (it may well be that someone has already done it: anyone thinking of writing such an application should post to the MySQL/php/etc. lists before putting fingers to vi) it'd be tremendous. Would this be acceptable to everyone? > > I agree that absent an email "push" many people won't participate even in communities they value. It's a real paradox for those of us who love and live in discussion board land but it's real. > > --- In squeak@y..., John Hinsley <jhinsley@t...> wrote: > > Dan Shafer wrote: > > > > > > > > > I don't subscribe to the list by email any longer (though I spent > > > the past year doing so) because I found it too cluttered an > > > experience, regardless of whether I used the digest or dealt with > > > individual emails. Following threads was very difficult at best and > > > filtering out topics in which I was not interested proved all but > > > impossible. > > > > Ah, I wondered where you'd gone ;-) I wasn't just joking: I'm sure I'm not the only one who misses your contributions. > > I think Rosemary makes the point beautifully: > > > > > The issue, I think, is having a variety of tools for different mindsets > > > that captures the same material. > > > > For me, that's the issue: all the tools must make the material available > > to *all* the others, otherwise we effectively dilute the community. > > Otherwise, well, I quite like bulletin boards. > > > > Cheers > > > > John > > And cheers again! John -- ****************************************************************************** Marx: "Why do Anarchists only drink herbal tea?" Proudhon: "Because all proper tea is theft." ******************************************************************************

2 1

Jump to page: