Squeak-dev March 2007

squeak-dev@lists.squeakfoundation.org

143 participants
204 discussions

the new Type-based ASN1 Stream implementation
by Robert Withers 26 Mar '07

26 Mar '07

With inspiration from VW, I've implemented a new ASN1 Stream and associated Type hierarchy. I briefly explain the new system below. This has been published alongside the existing ASN1Value implementation, in the Cryptography repository, so that users of ASN1Value won't currently be impacted. However, I would like to deprecate the old implementation this week, so this is a call to port uses of ASN1Value to ASN1DERStream. Please contact me if you are a user and I will help you port your code. I will be porting the X509 Certificate implementation over the next few days, so users of this framework should also contact me, as the public api will change. The new ASN1 framework has a Type hierarchy that supports both basic types and user-defined types. The support for basic types is sufficient to replace the current ASN1Value impl. Below are the replacements. ASN1Value fromAsnDer: stream. becomes (ASN1DERStream onStream: stream) decode. and anASN1Value encodeAsnDer becomes ASN1DERStream new encode: anASN1Value. The user-defined types are stored in an instance of an ASN1Module, for each module defined in the image. For instance, the X509 Module is registered as #x509. To access the forthcoming Certificate type definition in the X509 Module (I have to port X509 first), you would write: type := (ASN1Module name: #x509) find: #Certificate. In defining a type, you can specify a base type with an new name, or you can specify sequences and other constructs. With sequences, you can add a mapping class, so the elements of the sequence will be set to various ivars. You can add elements with optional, default or explicit and implicit tagging. Here is a sample of a user-defined type, a sequence, mapped to an ASN1TestModel, and a Boolean element mapped to the #testSlot1 ivar: ((ASN1Module name: #test) sequence: #TestSequence) add: #testSlot1 type: #ASN1BooleanType; mapping: ASN1TestModel; yourself. Now you can encode and decode using the defined Type, and this will marshal all values into ivars defined on various mapping classes. Here is the corresponding code: type := (ASN1Module name: #test) find: #TestSequence. obj := (ASN1DERStream onBytes: bytes) decodeWithType: type. and type := (ASN1Module name: #test) find: #TestSequence. bytes := ASN1DERStream new encode: obj withType: type. Additional examples, especially of the variety of basic types and user-defined type specifications, can be found in the CryptoASN1Test, once you have loaded the latest Cryptography-ASN1 and Cryptography- Tests. enjoy!

1 0

[ANN][Squeak-dev Image] Version 93
by Damien Cassou 26 Mar '07

26 Mar '07

Squeak-dev image is an image made for squeak developers based on Squeak3.9-final-7067. If you use it, please tell me. You can download it here: http://damien.cassou.free.fr/squeak-dev/ Changes in this version: ------------------------------ - Corrects a bug due to a SqueakMap purge. Prepared packages: -------------------------- There are a lot of packages prepared for you in this image. They are not loaded in the image, but they can be easily. - Open Package Universe Browser (world->open...->Package Universe Browser). - Click on "Update list from network" - Wait a few seconds - Choose your packages Future work: ---------------- - Wait for feedback. - Base squeak-dev image on Keith Hodges 3.9.1. Please tell me what is your experience with this version. Please tell me what you want for this image, this is for you. -- Damien Cassou

7 18

Monticello and Namespaces.
by Michael van der Gulik 26 Mar '07

26 Mar '07

Hi all. I'm trying to modify Monticello to support namespaces. Is there a Monticello mailing list where I can ask my questions? I found mention of one at http://www.wiresong.ca/Monticello, but the link is broken. What is the latest version of Monticello and where do the MC developers (Avi?) keep their .mcz files? I see Monticello on squeaksource.com, but the version in my 3.9 image is far in advance of the latest version there. Also, is there any technical description of the .mcz "file format" anywhere? What is the "snapshot.bin" file in .mcz files? Michael.

4 3

Squeak 3.9: using SqNumberParser in Number>>readFrom:
by Matthias Berth 26 Mar '07

26 Mar '07

Hi, I have found the discussion from last year: Fun with Number readFrom: What should we do ? http://lists.squeakfoundation.org/pipermail/squeak-dev/2006-April/103137.ht… Basically, the problem was that Number>>readFrom: will produce 0 where it should raise an error (e.g. when the input is letters only). There is a fix at http://bugs.squeak.org/view.php?id=3512 i.e. a new class SqNumberParser does the right thing. The bug was closed, but the problem still remains: while SqNumberParser is in the Squeak 3.9 image, Number>>readFrom is still the old method. Do you have any pointers to the next step, i.e. changing the code in classes Number, Integer (and wherever else)? I have encountered this problem when using Magritte: when I use a MANumberDescription for a field, there still is no check if the user enters a number. Validation fails because the from field value is interpreted using Number>>readFrom, so it produces 0 for inputs like "xyz". Cheers Matthias

4 20

Summer of Code: only 1 day left for the student applications
by Giovanni Corriga 26 Mar '07

26 Mar '07

Hi all, this is a friendly reminder to all the students interested in applying for the Google Summer of Code program. Remember that the deadline is Monday 26th (actually, Tuesday 27th at 00:00 UTC). This gives you a little more than 1 day for submitting your application. So what are you waiting for? Submit NOW! Giovanni

1 0

Calling REST APIs from Squeak
by Benjamin Pollack 25 Mar '07

25 Mar '07

I was talking to the author of a book on REST the other day, and noticed that neither HTTPClient nor HTTPSocket really seem to support REST APIs. At a bare minimum, I think you'd probably want the ability to add arbitrary headers to GET/PUT/POST (which HTTPSocket doesn't allow) and the ability to issue DELETE commands. For example, Amazon's APIs require an Authorization: header, and writing a clean WebDAV client that didn't duplicate a huge chunk of HTTPSocket functionality would be impossible at the moment. I'd be happy to submit a changeset refactoring HTTPSocket to make this more feasible, but I wanted to verify that I'm not either misunderstanding how these classes are supposed to be used or missing existing functionality already in the image. Cheers, --Benjamin

6 5

Custom Search Engine for Squeak and related projects, please help
by Matthias Berth 25 Mar '07

25 Mar '07

Hello, I have created a custom search engine for Squeak and related projects: http://google.com/coop/cse?cx=008315932112852043911%3Ayuibfrpnbc0 at the moment it has only a few sites on it. Please volunteer to add more sites (click on the "volunteer to contribute" link) or send interesting URLs to me directly. Please evaluate the quality of the search engine by trying your favorite searches and let me know how it worked. Once it shows good search quality we could consider includding it on squeak.org. If squeak foundation adpts it, we would even get it without googles ads. Cheers Matthias

1 0

Re: DEADLINE for Squeak contributor agreements: 1 May 2007
by Cees de Groot 25 Mar '07

25 Mar '07

On 3/25/07, Dan Ingalls <Dan(a)squeakland.org> wrote: > Possibly, and certainly in the bulk of the system it's frequently the case that the person who *really* wrote the method has been overwritten by someone who may have done nothing more than reformat it, so what is provided by this tally is closer to misinformation than information. > Another good argument for a Squeak Code Conservatory (or Museum :-)). Maybe a nice summer vacation project... (what I mean with this is a browseable, queryable (Mantis) database containing all source code of all versions back to Squeak 1.0).

1 0

Alternative directory/file classes?
by Andreas Raab 25 Mar '07

25 Mar '07

Hi - Recently I got (once again ;-) horribly disgusted by the mess in the current file/directory classes in Squeak and started looking for alternatives. Besides Flow (which I knew about but which is a bit too far-reaching for what I'm after) I was particularly impressed by looking at FileMan which seemed a nice and simple interface to do all the practical things that you need when dealing with files/directories. A couple of questions related to it: 1) Is anyone using FileMan in production environments? How does it hold up in practice? 2) I presume FileMan still requires FileDirectory and friends in all their splendid uglyness. Has anyone looked at making FileMan the only interface to access directories? 3) Are there any other directory/file interfaces I should be looking at in my quest for a bit more cleanliness in these areas? Cheers, - Andreas

15 39

Re: Seaside, Magritte,Pier and Pier Blog on the 3.9 Universe
by Jeroen van Hilst 24 Mar '07

24 Mar '07

Mark, I had trouble finding it... ;) Look at: open... Package Universe Browser hth - jeroen "Mark Aufflick" <mark-st(a)aufflick.com> wrote in message news:1242f34a0703220501s31e8be79rd766df47da610153@mail.gmail.com... > Hi Damien, > > I have downloaded your latest image, but I can't find any online > documentation explaining how to find/use the Universes package > management. Or am I confused about what Universes provides? > > Mark. > > On 3/19/07, Damien Cassou <damien.cassou(a)gmail.com> wrote: > > Hi, > > > > I would like to inform you about the creation of Seaside, Magritte, > > Pier and Pier blog packages on Lex Spoon's Universes. So, if you use > > Universes, you will be able to easily install one of this packages > > (dependencies are took care automatically). > > > > [Advert] Don't forget the squeak-dev image. The last version is based > > on Universes and if you use it, installing one of the packages will be > > really really ease. http://damien.cassou.free.fr/squeak-dev/ > > > > Bye > > > > -- > > Damien Cassou > > _______________________________________________ > > Seaside mailing list > > Seaside(a)lists.squeakfoundation.org > > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside > > > > > -- > Mark Aufflick > e: mark(a)pumptheory.com > w: mark.aufflick.com > p: +61 438 700 647 > f: +61 2 9436 4737

2 1

← Newer
1
2
3
4
5
6
7
8
...
21
Older →

Jump to page: