October 2012 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

This is strange because I do not see why it would crash. Do you have a log file of the crash? Stef On Oct 2, 2012, at 8:45 PM, Marc Hanisch wrote: > Hello, > > It's the Ubuntu for ARM build located here: https://launchpad.net/ubuntu/precise/armhf/squeak-vm/1:4.4.7.2357-1.1ubuntu1 > > But it still crashes when running a pharo image. With the delivered squeak-image, it does not crash :-( But I don't want to use squeak ;-) > > Best regards, > Marc > > > > -- â Esperanto - Lingvo internacia â http://www.esperanto.de â http://e-gikoj.com â > Am 02.10.2012 20:26 schrieb Denis Kudriashov <dionisiydk(a)gmail.com>: > Hello > > 2012/10/1 Marc Hanisch <marc.hanisch(a)googlemail.com> > Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... > > Where you get it? Can you share?

Oct. 2, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Marc Hanisch

Oct. 2, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Denis Kudriashov

Hello 2012/10/1 Marc Hanisch <marc.hanisch(a)googlemail.com> > Should Pharo run with the squeak-vm? An ARM build for the squeak-vm > exists... > Where you get it? Can you share?

Oct. 2, 2012

Re: [Pharo-users] Bag of Permutations

by Paul DeBruicker

I don't know why you'd need to make a copy inside the block but this works: | m p | m := #(1 2 3). p := Bag new. m permutationsDo: [:each | Transcript show: each ; cr. p add: each copy. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] The Transcript shows: #(1 2 3) a Bag(#(1 2 3)) #(1 3 2) a Bag(#(1 2 3) #(1 3 2)) #(2 1 3) a Bag(#(1 2 3) #(1 3 2) #(2 1 3)) #(2 3 1) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3)) #(3 2 1) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1)) #(3 1 2) a Bag(#(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1) #(3 1 2)) ------ #(2 3 1) #(1 2 3) #(1 3 2) #(2 1 3) #(3 2 1) #(3 1 2) On 10/01/2012 10:14 AM, Ginny Hendry wrote: > I would like to get a collection of permutations of another > collection but I can't make it work. > > This ends up incorrectly with the same element many times in Bag p: > > | m p | > m := #(1 2 3). > p := Bag new. > m permutationsDo: [:each | > Transcript show: each ; cr. > p add: each. > Transcript show: p ; cr. > ]. > Transcript show: '------'; cr. > p do: [:each| Transcript show: each; cr] > > But this very similar code ends up correctly with different > elements in Bag p: > > | m p | > m := #(1 2 3). > p := Bag new. > m do: [:each | > Transcript show: each ; cr. > p add: each. > Transcript show: p ; cr. > ]. > Transcript show: '------'; cr. > p do: [:each| Transcript show: each; cr] > > Any ideas about what am I doing wrong? How can I get a collection of permutations? > > Working in Pharo 1.4 one-click for Mac OSX. > > Thanks. > > -Ginny >

Oct. 1, 2012

Bag of Permutations

by Ginny Hendry

I would like to get a collection of permutations of another collection but I can't make it work. This ends up incorrectly with the same element many times in Bag p: | m p | m := #(1 2 3). p := Bag new. m permutationsDo: [:each | Transcript show: each ; cr. p add: each. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] But this very similar code ends up correctly with different elements in Bag p: | m p | m := #(1 2 3). p := Bag new. m do: [:each | Transcript show: each ; cr. p add: each. Transcript show: p ; cr. ]. Transcript show: '------'; cr. p do: [:each| Transcript show: each; cr] Any ideas about what am I doing wrong? How can I get a collection of permutations? Working in Pharo 1.4 one-click for Mac OSX. Thanks. -Ginny

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

thanks for the information. Stef On Oct 1, 2012, at 4:18 PM, Camillo Bruni wrote: > > On 2012-10-01, at 15:06, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > >>> Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... >>>> >>>> Thank you, >>>> Marc >>>> >>> >>> Yes, Pharo should run on any recent squeak-vm. If it crashes, it's a VM bug. >> >> I'm not sure. :) >> We fixed a lot of code in the filePlugin and friends. > > most of it is backwards compatible, meaning that unless you explicitly rely > on the new filePlugin features it won't fail. And in the worst case you should > get a warning, but certainly not a crash ;) > >

Oct. 1, 2012

Re: [Pharo-users] persist data across a redirect..

by sergio_101

oops! posted this to the wrong group.. my bad.. sorry.. On Mon, Oct 1, 2012 at 10:34 AM, sergio_101 <sergio.rrd(a)gmail.com> wrote: > the way the facebook authorization scheme works is as follows: > > 1. on the first go round, facebook sends a POST with some data in it > that needs to be parsed to pull an authorization code out of it. > 2. if the app isn't authorized, i need to redirect to an authorization > dialog to so that the user can authorize my app. > 3. once the user does that, my app receives an oauth code, and i am on > my way. > > i have everything working, except, i am not sure where to store the > authorization code.. > > in my main component's renderOn, it looks to see if the a instance > variable 'oauthToken' is set. if not, it renders some javascript that > is really just a redirect to the facebook authorization screen. > > once the app is authorized, 'oauthToken' is set to the correct value. > > then, the authorization dialog sends the request BACK to the root > url.. > > everything works correctly..BUT.. on the second time back, the > redirect from facebook, it looks like it starts a brand new session > (there is a new instance of the main component created). > > i was hoping that this would all be one session, and that i could just > set an instance variable once, and not even touch the session, but i > don't think this is going to happen. plus, it looks like i will be > firing up a new session on return anyway, so what i have saved in > session will be lost. > > anyone have any ideas on how to cleanly persist this variable after > facebook's redirect? > > thanks! > > -- > ---- > peace, > sergio > photographer, journalist, visionary > > http://www.ThoseOptimizeGuys.com > http://www.CodingForHire.com > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101 -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Marc Hanisch

2012/10/1 Camillo Bruni <camillobruni(a)gmail.com>: >>> >>> Yes, Pharo should run on any recent squeak-vm. If it crashes, it's a VM bug. >> >> I'm not sure. :) >> We fixed a lot of code in the filePlugin and friends. > > most of it is backwards compatible, meaning that unless you explicitly rely > on the new filePlugin features it won't fail. And in the worst case you should > get a warning, but certainly not a crash ;) > Thanks for the hints! I will try it with squeak-vm again. I think it crashed because the Toshiba AC100 has just 512MB of RAM. Greetings, Marc -- â Esperanto - Lingvo internacia â http://www.esperanto.de â http://e-gikoj.com â

Oct. 1, 2012

persist data across a redirect..

by sergio_101

the way the facebook authorization scheme works is as follows: 1. on the first go round, facebook sends a POST with some data in it that needs to be parsed to pull an authorization code out of it. 2. if the app isn't authorized, i need to redirect to an authorization dialog to so that the user can authorize my app. 3. once the user does that, my app receives an oauth code, and i am on my way. i have everything working, except, i am not sure where to store the authorization code.. in my main component's renderOn, it looks to see if the a instance variable 'oauthToken' is set. if not, it renders some javascript that is really just a redirect to the facebook authorization screen. once the app is authorized, 'oauthToken' is set to the correct value. then, the authorization dialog sends the request BACK to the root url.. everything works correctly..BUT.. on the second time back, the redirect from facebook, it looks like it starts a brand new session (there is a new instance of the main component created). i was hoping that this would all be one session, and that i could just set an instance variable once, and not even touch the session, but i don't think this is going to happen. plus, it looks like i will be firing up a new session on return anyway, so what i have saved in session will be lost. anyone have any ideas on how to cleanly persist this variable after facebook's redirect? thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Camillo Bruni

On 2012-10-01, at 15:06, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... >>> >>> Thank you, >>> Marc >>> >> >> Yes, Pharo should run on any recent squeak-vm. If it crashes, it's a VM bug. > > I'm not sure. :) > We fixed a lot of code in the filePlugin and friends. most of it is backwards compatible, meaning that unless you explicitly rely on the new filePlugin features it won't fail. And in the worst case you should get a warning, but certainly not a crash ;)

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

> Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... >> >> Thank you, >> Marc >> > > Yes, Pharo should run on any recent squeak-vm. If it crashes, it's a VM bug. I'm not sure. :) We fixed a lot of code in the filePlugin and friends. Stef

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by David T. Lewis

On Mon, Oct 01, 2012 at 12:53:44PM +0200, Marc Hanisch wrote: > Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... > > Thank you, > Marc > Yes, Pharo should run on any recent squeak-vm. If it crashes, it's a VM bug. Dave > 2012/10/1 St??phane Ducasse <stephane.ducasse(a)inria.fr>: > > So far there is no JIT for ARM. > > > > Stef > >

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Marc Hanisch

Should Pharo run with the squeak-vm? An ARM build for the squeak-vm exists... Thank you, Marc 2012/10/1 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>: > So far there is no JIT for ARM. > > Stef >

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by Denis Kudriashov

What about StackVM? 2012/10/1 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > So far there is no JIT for ARM. > > Stef > > On Oct 1, 2012, at 8:19 AM, Marc Hanisch wrote: > > > Hello, > > > > I'm running Ubuntu ARM (armhf) on my Toshiba AC100. With the help of > apt-get > > I've installed the squeak-vm and the squeak-image, which both run fine. > > > > Now I've downloaded the Pharo-image, but could not find the cog-vm for > ARM. > > Running the Pharo-image with the squeak-vm just gives me a segmentation > > fault: > > > > -1550458048 [] in ByteSymbol>? > > /usr/bin/squeak: line 277: 4603 Segmentation fault (core dumped) > $VM > > > > I don't know if it is in general possible to run the image with the > > squeak-vm. Does an ARM-build for the cog-vm exists? > > > > Thanks in advance, > > Marc > > > > >

Oct. 1, 2012

Re: [Pharo-users] Pharo on Ubuntu ARM

by StÃ©phane Ducasse

So far there is no JIT for ARM. Stef On Oct 1, 2012, at 8:19 AM, Marc Hanisch wrote: > Hello, > > I'm running Ubuntu ARM (armhf) on my Toshiba AC100. With the help of apt-get > I've installed the squeak-vm and the squeak-image, which both run fine. > > Now I've downloaded the Pharo-image, but could not find the cog-vm for ARM. > Running the Pharo-image with the squeak-vm just gives me a segmentation > fault: > > -1550458048 [] in ByteSymbol>? > /usr/bin/squeak: line 277: 4603 Segmentation fault (core dumped) $VM > > I don't know if it is in general possible to run the image with the > squeak-vm. Does an ARM-build for the cog-vm exists? > > Thanks in advance, > Marc >

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by StÃ©phane Ducasse

to me it shows that the package crypto should be improved. So publish a new version with the helper methods once you get the right way of making it work. We are all newbies in a domain or another one and I want a system for newbies (with documentation, nice comment, API, testsâ¦.). Stef On Oct 1, 2012, at 6:35 AM, sergio_101 wrote: >> hmacSHA256: aString key: aKey >> ^ (SHA256 new hmac) >> key: aKey asByteArray; >> digestMessage: aString asByteArray > > perfect! this is getting me closer.. i still have my test failing, but > now, i think it's another area that has problems.. > > looking at this, i SHOULD have been able to write it in just a few > seconds.. i have all the pieces.. > > but looking into it, i just dont understand what is going on line 2.. > > now that i look at it, and run up the chain in the browser, it's > pretty obvious what is going my .. > > my concern is that i had to figure it out AFTER someone gave me the solution.. > > am i gonna get better at this, once i monkey with the browser alot > more, or am i just being slow on he draw? > > thanks! > > > -- > ---- > peace, > sergio > photographer, journalist, visionary > > http://www.ThoseOptimizeGuys.com > http://www.CodingForHire.com > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101 >

Oct. 1, 2012

Pharo on Ubuntu ARM

by Marc Hanisch

Hello, I'm running Ubuntu ARM (armhf) on my Toshiba AC100. With the help of apt-get I've installed the squeak-vm and the squeak-image, which both run fine. Now I've downloaded the Pharo-image, but could not find the cog-vm for ARM. Running the Pharo-image with the squeak-vm just gives me a segmentation fault: -1550458048 [] in ByteSymbol>? /usr/bin/squeak: line 277: 4603 Segmentation fault (core dumped) $VM I don't know if it is in general possible to run the image with the squeak-vm. Does an ARM-build for the cog-vm exists? Thanks in advance, Marc

Oct. 1, 2012

Re: [Pharo-users] CogVM version

by Francois Stephany

Thanks ! On 30/09/12 21:00, Igor Stasenko wrote: > On 1 October 2012 04:50, Francois Stephany <tulipe.moutarde(a)gmail.com> wrote: >> I've downloaded the Cog-mac.zip from: >> http://www.pharo-project.org/pharo-download/unstable-2-0 >> >> How can I find out the version/revision number? It would be cool to have the >> number in the file name. >> > Smalltalk vm version. > > We also soon add the jenkins build number to version info. > >

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by sergio_101

> hmacSHA256: aString key: aKey > ^ (SHA256 new hmac) > key: aKey asByteArray; > digestMessage: aString asByteArray perfect! this is getting me closer.. i still have my test failing, but now, i think it's another area that has problems.. looking at this, i SHOULD have been able to write it in just a few seconds.. i have all the pieces.. but looking into it, i just dont understand what is going on line 2.. now that i look at it, and run up the chain in the browser, it's pretty obvious what is going my .. my concern is that i had to figure it out AFTER someone gave me the solution.. am i gonna get better at this, once i monkey with the browser alot more, or am i just being slow on he draw? thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] CogVM version

by Igor Stasenko

On 1 October 2012 04:50, Francois Stephany <tulipe.moutarde(a)gmail.com> wrote: > I've downloaded the Cog-mac.zip from: > http://www.pharo-project.org/pharo-download/unstable-2-0 > > How can I find out the version/revision number? It would be cool to have the > number in the file name. > Smalltalk vm version. We also soon add the jenkins build number to version info. -- Best regards, Igor Stasenko.

Oct. 1, 2012

CogVM version

by Francois Stephany

I've downloaded the Cog-mac.zip from: http://www.pharo-project.org/pharo-download/unstable-2-0 How can I find out the version/revision number? It would be cool to have the number in the file name.

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by Paul DeBruicker

On 09/30/2012 06:16 PM, sergio_101 wrote: >> First step is to get the correct SHA256 part then the second step is to make >> it the correct HMAC >> >> Does that help? > > i am not sure.. i think i need to dig around more in the crypto > package.. i have the sha256 part.. an i see the hmac code.. i think i > just have to figure out how to put them together.. > > thanks! > > This is what I've used before: hmacSHA256: aString key: aKey ^ (SHA256 new hmac) key: aKey asByteArray; digestMessage: aString asByteArray Took me a bit to find an image with it.

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by sergio_101

> First step is to get the correct SHA256 part then the second step is to make > it the correct HMAC > > Does that help? i am not sure.. i think i need to dig around more in the crypto package.. i have the sha256 part.. an i see the hmac code.. i think i just have to figure out how to put them together.. thanks! -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by Paul DeBruicker

You need an HMAC signed SHA256 secret. https://en.wikipedia.org/wiki/HMAC https://en.wikipedia.org/wiki/SHA-2 First step is to get the correct SHA256 part then the second step is to make it the correct HMAC Does that help? On 09/30/2012 06:00 PM, sergio_101 wrote: >> SHA256 hashMessage: ('test' , 'APIKey') hex >> >> > > that's what i initially thought.. but the php code they show is a > little bit different.. > > the line that puts it together is: > hash_hmac('sha256', $payload, $secret, $raw = true) > > in this case: > > parameters are: > algorithm > string to be hashed > Shared secret key used for generating the HMAC variant of the message digest. > When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits. > > so, i think i need to use the apiSecret as the key for encryption.. >

Oct. 1, 2012

Re: [Pharo-users] SHA256 hashing with secret key..

by sergio_101

> SHA256 hashMessage: ('test' , 'APIKey') hex > > that's what i initially thought.. but the php code they show is a little bit different.. the line that puts it together is: hash_hmac('sha256', $payload, $secret, $raw = true) in this case: parameters are: algorithm string to be hashed Shared secret key used for generating the HMAC variant of the message digest. When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits. so, i think i need to use the apiSecret as the key for encryption.. -- ---- peace, sergio photographer, journalist, visionary http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

Oct. 1, 2012