February 2016 - Pharo-users

Parsing User-Agent strings with a web service

by Sven Van Caekenberghe

I want to share a snippet of code. In HTTP, a client identifies itself using the User-Agent header. That string is long and cryptic. To make sense of it you have to parse it. There are web services that can do this. Here is how you can invoke one of them. ZnClient new http; host: 'useragentstring.com'; queryAt: 'uas' put: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/601.4.4 (KHTML, like Gecko) Version/9.0.3 Safari/601.4.4'; queryAt: 'getJSON' put: 'all'; contentReader: [ :entity | NeoJSONReader fromString: entity contents ]; get. Since STON parsing is backward compatible with JSON, you can use that as well. ZnClient new http; host: 'useragentstring.com'; queryAt: 'uas' put: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/601.4.4 (KHTML, like Gecko) Version/9.0.3 Safari/601.4.4'; queryAt: 'getJSON' put: 'all'; contentReader: [ :entity | STON fromString: entity contents ]; get. You will get back a nice dictionary with much more sensible key/value pairs. Note that this is a public service. I think it would be polite and more efficient if you put a cache in front of it, like LRUCache. Sven

Feb. 1, 2016

Re: [Pharo-users] Windows headless and service

by Robert Kuszinger

Esteban, thanks, I'll try and keep informed... regards Robert 2016-02-01 11:14 GMT+01:00 Esteban Lorenzano <estebanlm(a)gmail.com>: > Hi Robert, > > First, the option to execute pharo headless is ââheadlessâ (two â-â, not > just one). Maybe the help is bad :) > But that will not solve your problem at all, since headless mode is fake > and in case of windows it will open anyway a window (in the systray if you > are luckyâ¦). > > However, I managed (some years ago, so do not ask for details ;) to run a > pharo app as a service using this program: http://rozanski.org.uk/services > here is an article that explains how to use it: > http://www.howtogeek.com/50786/using-srvstart-to-run-any-application-as-a-w… > (I do not remember how I did it and it would be nice if you can share your > experience, so we can have documentation somewhere :P) > > Also I googled a bit and according to this: > http://stackoverflow.com/questions/3582108/create-windows-service-from-exec…, > looks like the âmicrosoftâ way of doing it is using a command âscâ. I > suppose that command will not work if your program is not prepared for > being a service, but you can give it a try (first approach *will* work, > anyway :P) > > Hope this worksâ¦ please keep us informed. > Esteban > > >

Feb. 1, 2016

Re: [Pharo-users] Windows headless and service

by Esteban Lorenzano

Hi Robert, First, the option to execute pharo headless is ââheadlessâ (two â-â, not just one). Maybe the help is bad :) But that will not solve your problem at all, since headless mode is fake and in case of windows it will open anyway a window (in the systray if you are luckyâ¦). However, I managed (some years ago, so do not ask for details ;) to run a pharo app as a service using this program: http://rozanski.org.uk/services <http://rozanski.org.uk/services> here is an article that explains how to use it: http://www.howtogeek.com/50786/using-srvstart-to-run-any-application-as-a-w… <http://www.howtogeek.com/50786/using-srvstart-to-run-any-application-as-a-w…> (I do not remember how I did it and it would be nice if you can share your experience, so we can have documentation somewhere :P) Also I googled a bit and according to this: http://stackoverflow.com/questions/3582108/create-windows-service-from-exec… <http://stackoverflow.com/questions/3582108/create-windows-service-from-exec…>, looks like the âmicrosoftâ way of doing it is using a command âscâ. I suppose that command will not work if your program is not prepared for being a service, but you can give it a try (first approach *will* work, anyway :P) Hope this worksâ¦ please keep us informed. Esteban > On 01 Feb 2016, at 09:04, Robert Kuszinger <kuszinger(a)giscom.hu> wrote: > > Hello! > > No luck by far. Information on forums is not enopugh for me (this is definitely my fault, my limited background in the squek/pharo VM world). > > I've checked different setups. Even putting CogVM into operation with Pharo is not evident for me. > > My trivial test was the -headless option which is listed with windows Pharo but it won't start at all. No process is created. The XULRunner example mentioned is "out of my reach" (and the demo was on Linux, also subsequent comments on the forums stated that Mac/Win versions are not headless.). > > Who could check if it works at all? Actually I've invested a week in this small Seaside app, performs beautifully but now it seems that It simply cannot be installed on Windows? How do people use Seaside/Pharo on Windows. Is there someone using it at all? :) > No problem if I'm the first one, anyway. > My goal is to start it automatically in the background (service is not necessary, again, it is enought to be started). > Is it possible that Pharo starts with a widnow (splash) but noone sees it? > > Summarizing: > - I'm looking for a solution to start a headless Seaside app on Windows possibly with Pharo image. > > thanks for any recommendations. > > > > > Robert Kuszinger <kuszinger(a)giscom.hu <mailto:kuszinger@giscom.hu>> ezt Ãrta (idÅpont: 2016. jan. 31., V, 8:27): > Torsten, thanks. > > Ok, I'll test it. Idon't mind I need SRVANY or other solution on win to start it. It is not necessary to provide a well formed service. > I'm stopped at the headless running at all. I'Ll check the headless CogVM. Once it runs headless I'll be able to launch it at machine start. > > I'll share my results here. > > best regards > Robert > > > Torsten Bergmann <astares(a)gmx.de <mailto:astares@gmx.de>> ezt Ãrta (idÅpont: 2016. jan. 31., V, 1:31): > Running as Windows Service was possible back in Squeak VM days where > Andreas Raab implemented registration into SCM (Service Control Manager). > Code should be in Pharo VM too. > > See also http://forum.world.st/headless-CogVM-on-Windows-td4648336.html <http://forum.world.st/headless-CogVM-on-Windows-td4648336.html> > > Possibly the "-service" may be broken/may not be recognized in Pharo Win VM > anymore, havent checked. > > Bye > T. >

Feb. 1, 2016

Re: [Pharo-users] Problem to open Pharo 50 on Windows

by Esteban Lorenzano

> On 31 Jan 2016, at 22:05, Franck Warlouzet <franck.warlouzet(a)hotmail.fr> wrote: > > For my case, windows 10, latest I assume. Installed on the desktop (in several directories, I'm organized). > > Do you think it could be an admin rights issue if it is installed in protected directories in Justine's case ? it has to beâ¦ otherwise I cannot imagine what it can be :( Esteban > > Franck > > > To: pharo-users(a)lists.pharo.org <mailto:pharo-users@lists.pharo.org> > > From: stephan(a)stack.nl <mailto:stephan@stack.nl> > > Date: Sun, 31 Jan 2016 20:27:37 +0100 > > Subject: Re: [Pharo-users] Problem to open Pharo 50 on Windows > > > > On 31-01-16 18:55, Franck Warlouzet wrote: > > > I tried to help Justine a bit, but I have the same OS, the same VM, the > > > same image, the same sources and it works for me but not for her, > > > > Which OS & update version, in what directories is it installed? > > > > Stephan > > > >

Feb. 1, 2016

Re: [Pharo-users] Windows headless and service

by Robert Kuszinger

Wow! Nice workaround but cannot help this case. If I'd have the power for such a thing I'd change the Win server to Linux. There are too many dependencies in the background which are all Windows related. I cannot add - or better, not allowed to add - virtualbox nor qemu or other layer to the system. And this small app also uses ODBC to connect SQL server on the same Win machine. But the key issue is that I cannot add any other component but maybe Smalltalk app. Smalltalk is my choice and preference. And actually, the app is done. Anyway, thanks for the idea :) Best regards Robert Ben Coman <btc(a)openinworld.com> ezt Ãrta (idÅpont: 2016. febr. 1., H, 10:29): > On Mon, Feb 1, 2016 at 4:04 PM, Robert Kuszinger <kuszinger(a)giscom.hu> > wrote: > > Who could check if it works at all? Actually I've invested a week in this > > small Seaside app, performs beautifully but now it seems that It simply > > cannot be installed on Windows? How do people use Seaside/Pharo on > Windows. > > Is there someone using it at all? :) > > No problem if I'm the first one, anyway. > > My goal is to start it automatically in the background (service is not > > necessary, again, it is enought to be started). > > Is it possible that Pharo starts with a widnow (splash) but noone sees > it? > > > > Summarizing: > > - I'm looking for a solution to start a headless Seaside app on Windows > > possibly with Pharo image. > > > > thanks for any recommendations. > > Hi Robert, > > I haven't had anything to do with headless Pharo, so I'm no use to you > there. Hopefully someone else can help, but I have personal saying > "If you can't solve the problem, change the problem" -- so just a wild > suggestion for a kludge workaround until you get a better answer - run > virtualbox headless [1] or as a service [2] with Linux inside to run > headless Pharo. Disclaimer, I've not tried these myself either - just > found them through a search. > > [1] > https://mkrmr.wordpress.com/2011/05/06/running-a-headless-virtualbox-in-win… > [2] https://code.google.com/archive/p/virtualboxservice/ > > HTH, cheers -ben > >

Feb. 1, 2016

Re: [Pharo-users] Windows headless and service

by Ben Coman

On Mon, Feb 1, 2016 at 4:04 PM, Robert Kuszinger <kuszinger(a)giscom.hu> wrote: > Who could check if it works at all? Actually I've invested a week in this > small Seaside app, performs beautifully but now it seems that It simply > cannot be installed on Windows? How do people use Seaside/Pharo on Windows. > Is there someone using it at all? :) > No problem if I'm the first one, anyway. > My goal is to start it automatically in the background (service is not > necessary, again, it is enought to be started). > Is it possible that Pharo starts with a widnow (splash) but noone sees it? > > Summarizing: > - I'm looking for a solution to start a headless Seaside app on Windows > possibly with Pharo image. > > thanks for any recommendations. Hi Robert, I haven't had anything to do with headless Pharo, so I'm no use to you there. Hopefully someone else can help, but I have personal saying "If you can't solve the problem, change the problem" -- so just a wild suggestion for a kludge workaround until you get a better answer - run virtualbox headless [1] or as a service [2] with Linux inside to run headless Pharo. Disclaimer, I've not tried these myself either - just found them through a search. [1] https://mkrmr.wordpress.com/2011/05/06/running-a-headless-virtualbox-in-win… [2] https://code.google.com/archive/p/virtualboxservice/ HTH, cheers -ben

Feb. 1, 2016

Re: [Pharo-users] Windows headless and service

by Robert Kuszinger

Hello! No luck by far. Information on forums is not enopugh for me (this is definitely my fault, my limited background in the squek/pharo VM world). I've checked different setups. Even putting CogVM into operation with Pharo is not evident for me. My trivial test was the *-headless* option which is listed with windows Pharo but it won't start at all. No process is created. The XULRunner example mentioned is "out of my reach" (and the demo was on Linux, also subsequent comments on the forums stated that Mac/Win versions are not headless.). Who could check if it works at all? Actually I've invested a week in this small Seaside app, performs beautifully but now it seems that It simply cannot be installed on Windows? *How do people use Seaside/Pharo on Windows*. Is there someone using it at all? :) No problem if I'm the first one, anyway. My goal is to start it automatically in the background (service is not necessary, again, it is enought to be started). Is it possible that Pharo starts with a widnow (splash) but noone sees it? Summarizing: - I'm looking for a solution to start a headless Seaside app on Windows possibly with Pharo image. thanks for any recommendations. Robert Kuszinger <kuszinger(a)giscom.hu> ezt Ãrta (idÅpont: 2016. jan. 31., V, 8:27): > Torsten, thanks. > > Ok, I'll test it. Idon't mind I need SRVANY or other solution on win to > start it. It is not necessary to provide a well formed service. > I'm stopped at the headless running at all. I'Ll check the headless CogVM. > Once it runs headless I'll be able to launch it at machine start. > > I'll share my results here. > > best regards > Robert > > > Torsten Bergmann <astares(a)gmx.de> ezt Ãrta (idÅpont: 2016. jan. 31., V, > 1:31): > >> Running as Windows Service was possible back in Squeak VM days where >> Andreas Raab implemented registration into SCM (Service Control Manager). >> Code should be in Pharo VM too. >> >> See also http://forum.world.st/headless-CogVM-on-Windows-td4648336.html >> >> Possibly the "-service" may be broken/may not be recognized in Pharo Win >> VM >> anymore, havent checked. >> >> Bye >> T. >> >>

Feb. 1, 2016