January 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] SSL client certificates

by Sven Van Caekenberghe

> On 15 Jan 2016, at 15:09, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Wow, thanks for sharing! > > Please, please, Holger, share the new Mac SSL Plugin somewhere so that we can test it too. (Next step is to push this change upstream in the VM). Norbert, Holger, I think an SSL Plugin for OS X based on the OpenSSL code for (L|U)nix is *very* important. Could you please share it, just for testing, please, please ? Thx, Sven >> On 15 Jan 2016, at 14:49, Norbert Hartl <norbert(a)hartl.name> wrote: >> >> Hi, >> >>> Am 12.01.2016 um 16:25 schrieb Sven Van Caekenberghe <sven(a)stfx.eu>: >>> >>> Given a ZdcSecureSocketStream you can access the #sslSession. In this session object you can use #certificateName: to set the path or name of the certificate (before you #connect !). That is the general idea. >>> >>> Now, I don't know if this works or not. Be prepared to look in the plugin C code! On Linux this will probably work. >>> >>> And please let us know how it goes ;-) >>> >> I spend some time yesterday trying it. With a linux installation I could issue a client connection and that didn't throw an error. Then Holger was really helpful with Mac OS. He just compiled the Mac plugin using the unix openssl sources. I just copied that in the VM folder and then I could do the same on my Mac. I tried to send a push message via apples push server using: >> >> | deviceId payload ip stream notification | >> payload := '{ >> "aps" : { >> "alert" : "Pharo finally got it!" >> } >> }'. >> deviceId := 'XXX'. >> >> notification := ByteArray streamContents: [ :str | >> str >> nextPut: 1; >> nextPutAll: (1 asPaddedByteArray: 4); >> nextPutAll: ((DateAndTime now + 1 day) asUTC asUnixTime asByteArray); >> nextPutAll: (32 asPaddedByteArray: 2); >> nextPutAll: (ByteArray readHexFrom: deviceId); >> nextPutAll: (payload size asPaddedByteArray: 2); >> nextPutAll: payload asByteArray ]. >> >> ip := NetNameResolver addressForName: 'gateway.push.apple.com' timeout: 30. >> stream := ZdcSecureSocketStream >> openConnectionToHost: ip >> port: 2195 >> timeout: 30. >> stream >> binary; >> shouldSignal: true; >> autoFlush: false; >> bufferSize: 4096; >> timeout: 30. >> stream sslSession >> enableLogging; >> certificateName: '/Users/norbert/multiprod.pem'. >> stream >> connect; >> nextPutAll: notification; >> flush; >> close. >> >> That is working and I receive the message on my phone. So basically the client certificate stuff seems to work. The awkward thing about it is that you have to specify a filename for the cert. I have the certificates in a database and writing a file everytime I want to send something is not that good. Especially not if there are concurrent requests for sending messages. >> >> There is one constraint for this to work. You specify a filename for certificate. In the file you need to have certificate and key. The plugin reads both from the same file. There is no code for specifying a CA chain. So this is resolved system wide and that means you need to install every CA for your certificate in the system. >> >> Norbert >> >>>> On 12 Jan 2016, at 16:05, Norbert Hartl <norbert(a)hartl.name> wrote: >>>> >>>> Is there a way to make SSL connections to the outside world using client certificates from pharo? >>>> >>>> thanks, >>>> >>>> Norbert >

Jan. 21, 2016

Re: [Pharo-users] Use cases for methods with optional parameters

by Dimitris Chloupis

how about syntax like this openFile: aPath (optionalArgumentA: anArgument optionalArgumentB: anArghument) On Thu, Jan 21, 2016 at 1:39 PM Henrik Johansen < henrik.s.johansen(a)veloxit.no> wrote: > > > On 20 Jan 2016, at 6:14 , Esteban A. Maringolo <emaringolo(a)gmail.com> > wrote: > > > > > > I would be interested in the use cases and how to deal with > > "undefined" arguments, will they be nil or other kind of undefined > > object? > > > > Regards! > > > > Esteban A. Maringolo > > Perhaps > > request: aFile with: anotherThing and: aThirdThing > <optionalParameter: anotherThing "default: nil"> > <optionalParameter: aThirdThing default: defaultThirdThing> > -> > request: aFile with: anotherThing > ^self request: aFile with: anotherThing and: self defaultThirdThing > request: aFile and:: aThirdThing > ^self request: aFile with: nil and: self aThirdThing > request: aFile > ^self request: aFile with: nil and: self defaultThirdThing > > ? > > Cheers, > Henry >

Jan. 21, 2016

Re: [Pharo-users] [From StackOverflow] How to parse ndjson in Pharo with NeoJSON

by Sven Van Caekenberghe

(I don't do StackOverflow) Reading the 'format' is easy, just keep on doing #next for each JSON expression (whitespace is ignored). | data reader | data := '{"smalltalk": "cool"} {"pharo": "cooler"}'. reader := NeoJSONReader on: data readStream. Array streamContents: [ :out | [ reader atEnd ] whileFalse: [ out nextPut: reader next ] ]. Preventing intermediary data structures is easy too, use streaming. | client reader data networkStream | (client := ZnClient new) streaming: true; url: 'https://github.com/NYPL-publicdomain/data-and-utilities/blob/master/items/p…'; get. networkStream := ZnCharacterReadStream on: client contents. reader := NeoJSONReader on: networkStream. data := Array streamContents: [ :out | [ reader atEnd ] whileFalse: [ out nextPut: reader next ] ]. client close. data. It took a couple of seconds, it is 80MB+ over the network for 50K items after all. HTH, Sven > On 21 Jan 2016, at 12:02, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > Hi, > > there is a question I donât know how to answer. > > http://stackoverflow.com/questions/34904337/how-to-parse-ndjson-in-pharo-wi… > > Transcript: > > I want to parse ndjson (newline delimited json) data with NeoJSON on Pharo Smalltalk. > > ndjson data looks like this: > > {"smalltalk": "cool"} > {"pharo": "cooler"} > At the moment I convert my file stream to a string, split it on newline and then parse the single parts using NeoJSON. This seems to use an unnecessary (and extremely huge) amount of memory and time, probably because of converting streams to strings and vice-versa all the time. What would be an efficient way to do this task? > > > Takers? > Esteban

Jan. 21, 2016

Re: [Pharo-users] Use cases for methods with optional parameters

by Henrik Johansen

> On 20 Jan 2016, at 6:14 , Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > > > I would be interested in the use cases and how to deal with > "undefined" arguments, will they be nil or other kind of undefined > object? > > Regards! > > Esteban A. Maringolo Perhaps request: aFile with: anotherThing and: aThirdThing <optionalParameter: anotherThing "default: nil"> <optionalParameter: aThirdThing default: defaultThirdThing> -> request: aFile with: anotherThing ^self request: aFile with: anotherThing and: self defaultThirdThing request: aFile and:: aThirdThing ^self request: aFile with: nil and: self aThirdThing request: aFile ^self request: aFile with: nil and: self defaultThirdThing ? Cheers, Henry

Jan. 21, 2016

[ANN] Bounties for Pharo

by marcus.denker＠inria.fr

Hello, We have set up a Bountysource Team for Pharo. This means that everyone can suggest bounties or contribute money to existing bounties. Have a look here: https://www.bountysource.com/teams/pharo Existing bounties can be found here: https://www.bountysource.com/teams/pharo/issues New bounties can be created by adding an issue to the issue tracker here: https://github.com/pharo-project/pharo-bounties/issues To learn more about bounty source, see https://github.com/bountysource/core/wiki/Frequently-Asked-Questions Even though a service from the same website, this is separate of the Salt âgive money per monthâ announced earlier: bounties are solely between the people funding and the person solving the issue (the bounty hunter). So putting money on a bounty does not give it to the Pharo Association, instead it stays there waiting for someone to solve the issue, and is payed to the âbounty hunterâ in case of success. Marcus

Jan. 21, 2016

GDAL binding?

by HernÃ¡n Morales Durand

Hi folks, I want to add features for geospatial analysis of genetic data in my application. For this a widely used library[1] is GDAL[2]. Bindings exists for Java, Perl, Python, C#, PHP, Ruby, R, Go, Lua, Node.js [3] but it seems none for Smalltalk. Is anyone working in this direction? HernÃ¡n [1] http://trac.osgeo.org/gdal/wiki/SoftwareUsingGdal [2] http://www.gdal.org/ [3] http://trac.osgeo.org/gdal/#GDALOGRInOtherLanguages

Jan. 21, 2016

[From StackOverflow] How to parse ndjson in Pharo with NeoJSON

by Esteban Lorenzano

Hi, there is a question I donât know how to answer. http://stackoverflow.com/questions/34904337/how-to-parse-ndjson-in-pharo-wi… Transcript: I want to parse ndjson <http://ndjson.org/> (newline delimited json) data with NeoJSON <https://github.com/svenvc/docs/blob/master/neo/neo-json-paper.md> on Pharo Smalltalk. ndjson data looks like this: {"smalltalk": "cool"} {"pharo": "cooler"} At the moment I convert my file stream to a string, split it on newline and then parse the single parts using NeoJSON. This seems to use an unnecessary (and extremely huge) amount of memory and time, probably because of converting streams to strings and vice-versa all the time. What would be an efficient way to do this task? Takers? Esteban

Jan. 21, 2016

[ANN] Pharo on Bountysource Salt

by Marcus Denker

Hi, We have set up a Pharo on the new Salt platform of bountysource: https://salt.bountysource.com/teams/pharo This is an easy way to support pharo development. If you support above a certain threshold, being a Salt supporter includes a membership for the Pharo Association. Marcus

Jan. 21, 2016

Dr. Geo Swiss App Store

by Yuriy Tymchuk

Hi, I was trying to install Dr. Geo on iPad, and apparently it's not available in Swiss App Store... Is where any issue of putting the app on every App Store that is there? Cheers. Uko Sent from my iPad

Jan. 21, 2016

Cleaning Phao topics

by stepharo

Hi I will go over Pharo topics on github and also clean and sync the file on the Pharo web site and I will clean the topics. I will make a list with the ones that are not clear with no mentors in case some people want to rescue them but this list should be much better and I will clean it with the Mooc and future lectures I will do in mind. Stef

Jan. 21, 2016