Re: HTML-based/Browser apps (was Re: anti-cheating)
Hey All, The offline spec is indeed something very cool - I had some time back done some work with XSL to try to create something that would have a similar effect with Apache cocoon - but nothing can (or should) beat a w3c standard. What we are trying to do in Afghanistan to see if we can offset the cost of the laptop is deliver info to the parents using the XO to see if we can help them to increase their income - things like home business ideas (e.g. Afghan carpets), CV writing etc. for when the kids are asleep... As HTML seems to be the most portable / compact choice we have made a collection of info as such - but as per the previous post we would rather have it a bit more prominent than making the .xol collection file. I hence copied the help activity to a new folder Econdev.activity: Left helpactivity.py as it was except for changing the line: HOME = os.path.join(activity.get_bundle_path(), 'econdev/index.html') Created activity [Activity] name = Economic Development activity_version = 10 service_name = af.asmed.EconomicDevelopment icon = activity-econdev class = helpactivity.HelpActivity license = GPLv2 Then there is an SVG I made in Inkscape activity/activity-econdev.svg - yet somehow when this folder Econdev.activity is copied to ~/Activities and sugar etc. is restarted - no icon turning up. I also tried packaging it as a .xo file and then running the install script that put it under /usr/share - it turns up, but no icon... I went through the log viewer and there didn't seem to be any special mention of it... Is there possibly a problem from not changing the Class name of the helpactivity to be unique - or some naming convention that I have neglected here? Our stuff (in English, Dari and Pashto) will go up on olpc.af and as a collection... Thanks, -Mike PS: I have to hang my head in shame that I have not yet done much Python / XO activity coding (yet) - I've done more Java/J2EE and Linux server admin thus far. I will take time over the weekend... 2009/1/13 Sameer Verma sve...@sfsu.edu: On Mon, Jan 12, 2009 at 2:15 AM, S Page i...@skierpage.com wrote: Carlos Nazareno wrote: - I'd also like to see more work done on a method to easily bundle Gnash or HTML-based/Browser applications as stand-alone activities, or at least launch the browser with the wrapped activity loaded upon startup. See the Help activity in 8.2.0, it instantiates the WebView from hulahop that underlies Browse and points it at help/XO_Introduction.html. But is it so bad to make your HTML-based application an installable collection that shows up in the OLPC Library navigation on the Browse home page? See http://wiki.laptop.org/go/Creating_a_collection. Just because most library content is static non-interactive ebook material is no reason really cool browser apps shouldn't go in the OLPC Library. One thing that might make collections more appealing and feel like applications is if the collection's library.info icon (which seems otherwise unused?!) or the web site's favicon would appear in the Journal instead or as well as the generic globe icon of Browse. I filed a confused ticket #9188 for this enhancement. - Using a local daemon or service of some sort, the method I previously outlined can also be used here for standalone mode of the tests. This way, the learner can also practice with them and learn outside of class hours. The WikiBrowse activity (WikipediaEN.activity on G1G1 8.2 laptops) starts a local python Web server and fires up a WebActivity (Browse) instance pointing at it. Better, Browse's engine is XULRunner 1.9 and it has support for most of the HTML 5 offline application spec http://www.w3.org/TR/2008/WD-html5-20080122/#offline. E.g. http://starkravingfinkle.org/projects/offline/todo.html is an expanding form you can fill out while offline that will update the web server when next online. It should work on an XO (I can't try it, my wireless router is bust! :-( ). I concur with where you're going. *Never* ever bet against the browser. Browse or a custom WebView activity can do everything that Firefox 3 can do, without worrying about compatibility with abysmal MS Internet Explorer that's keeping the web stuck in 2004. E.g. http://wiki.laptop.org/go/FindTheCountry -- why bother with crappy static PDF atlases when interactive technology like that is available? And you can View Source it! This is one of the coolest things I've seen in a long time!!! This is definitely going down in the SVG examples section for my class in Spring. Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
Martin Langhoff wrote: On Thu, Feb 12, 2009 at 6:47 PM, martin.langh...@gmail.com wrote: When starting up, call seed_xs_cookie() to Hi Simon, Hoping for some review :-) . Do you think this patch can make it into the sucrose-0.82 branch? With a tad of elbow grease, it also applies on top of master. The reason I ask for it on the 0.82 branch is that - It's low low risk -- in fact, the interesting ops are wrapped in a try/except block so a failure won't stop Browse from starting up. - It allows me to do a XS 0.5.2 or 0.6 relatively soon that integrates smoothly with the XO 0.8.2.x series. Deployments can ensure that they have an updated Browse.xo... cheers, Is your main request to get it into 0.82.1? Is this only a temporary solution and we get something else later? Thanks, Simon PS: I am not a security person - so for this discussion of security impact you are better of asking someone else - I can only comment on the general layout of the patch. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: HTML-based/Browser apps (was Re: anti-cheating)
On Thu, Feb 12, 2009 at 11:25, Mike Dawson mikeofmanches...@gmail.com wrote: Hey All, The offline spec is indeed something very cool - I had some time back done some work with XSL to try to create something that would have a similar effect with Apache cocoon - but nothing can (or should) beat a w3c standard. What we are trying to do in Afghanistan to see if we can offset the cost of the laptop is deliver info to the parents using the XO to see if we can help them to increase their income - things like home business ideas (e.g. Afghan carpets), CV writing etc. for when the kids are asleep... As HTML seems to be the most portable / compact choice we have made a collection of info as such - but as per the previous post we would rather have it a bit more prominent than making the .xol collection file. I hence copied the help activity to a new folder Econdev.activity: Left helpactivity.py as it was except for changing the line: HOME = os.path.join(activity.get_bundle_path(), 'econdev/index.html') Created activity [Activity] name = Economic Development activity_version = 10 service_name = af.asmed.EconomicDevelopment icon = activity-econdev class = helpactivity.HelpActivity license = GPLv2 Then there is an SVG I made in Inkscape activity/activity-econdev.svg - yet somehow when this folder Econdev.activity is copied to ~/Activities and sugar etc. is restarted - no icon turning up. I also tried packaging it as a .xo file and then running the install script that put it under /usr/share - it turns up, but no icon... I went through the log viewer and there didn't seem to be any special mention of it... Is there possibly a problem from not changing the Class name of the helpactivity to be unique - or some naming convention that I have neglected here? Only the service_name needs to be unique. Which version of Sugar are you using? If 0.82, the activity icon is not appearing on the activity list? See http://en.flossmanuals.net/Sugar/HomeView in case you dind't knew about it. Also feel free to email the sugar-devel mailing list for questions about sugar development. Regards, Tomeu Our stuff (in English, Dari and Pashto) will go up on olpc.af and as a collection... Thanks, -Mike PS: I have to hang my head in shame that I have not yet done much Python / XO activity coding (yet) - I've done more Java/J2EE and Linux server admin thus far. I will take time over the weekend... 2009/1/13 Sameer Verma sve...@sfsu.edu: On Mon, Jan 12, 2009 at 2:15 AM, S Page i...@skierpage.com wrote: Carlos Nazareno wrote: - I'd also like to see more work done on a method to easily bundle Gnash or HTML-based/Browser applications as stand-alone activities, or at least launch the browser with the wrapped activity loaded upon startup. See the Help activity in 8.2.0, it instantiates the WebView from hulahop that underlies Browse and points it at help/XO_Introduction.html. But is it so bad to make your HTML-based application an installable collection that shows up in the OLPC Library navigation on the Browse home page? See http://wiki.laptop.org/go/Creating_a_collection. Just because most library content is static non-interactive ebook material is no reason really cool browser apps shouldn't go in the OLPC Library. One thing that might make collections more appealing and feel like applications is if the collection's library.info icon (which seems otherwise unused?!) or the web site's favicon would appear in the Journal instead or as well as the generic globe icon of Browse. I filed a confused ticket #9188 for this enhancement. - Using a local daemon or service of some sort, the method I previously outlined can also be used here for standalone mode of the tests. This way, the learner can also practice with them and learn outside of class hours. The WikiBrowse activity (WikipediaEN.activity on G1G1 8.2 laptops) starts a local python Web server and fires up a WebActivity (Browse) instance pointing at it. Better, Browse's engine is XULRunner 1.9 and it has support for most of the HTML 5 offline application spec http://www.w3.org/TR/2008/WD-html5-20080122/#offline. E.g. http://starkravingfinkle.org/projects/offline/todo.html is an expanding form you can fill out while offline that will update the web server when next online. It should work on an XO (I can't try it, my wireless router is bust! :-( ). I concur with where you're going. *Never* ever bet against the browser. Browse or a custom WebView activity can do everything that Firefox 3 can do, without worrying about compatibility with abysmal MS Internet Explorer that's keeping the web stuck in 2004. E.g. http://wiki.laptop.org/go/FindTheCountry -- why bother with crappy static PDF atlases when interactive technology like that is available? And you can View Source it! This is one of the coolest things I've seen in a long time!!! This is definitely going down in the SVG examples
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
Martin Langhoff wrote: On Thu, Feb 12, 2009 at 11:32 PM, Simon Schampijer si...@schampijer.de wrote: Is your main request to get it into 0.82.1? Is this only a temporary solution and we get something else later? I think it'll be our current solution for a while... both branches? PS: I am not a security person - so for this discussion of security impact you are better of asking someone else - I can only comment on the general layout of the patch. The main 'right way' in security terms is following the 'Plan A' that I outlined in my other email. _ Plan A - HTTPS to the rescue Use HTTPS and client certs. On the Browse.xo, either create a client cert at first boot or derive one from the SSL priv key we already have. Lacking a PKI ( in this case XSs will have self-signed certs, and the whole network will often be offline), we will need to grab the cert from the XS at registration time so we can whitelist it for Browse.xo. This is safer, allows us to upgrade later to always using HTTPS if desired. It has downsides however - we'll have to change the registration protocol, and deal with up/downwards compat issues. - https is significantly more costly in terms of CPU on the XS Just to understand better. Is the main issue that we have to change the protocol - or are you more worried about the CPU cost? So as I understand the process: At registration time with the XS the cert is created and transferred to the client. Probably stored than in the profile. Browse does than integrate it when it starts. The cert integration itself in Browse should not be hard. Thanks for clearing up, Simon ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
New staging build 32
http://xs-dev.laptop.org/~cscott/xo-1/streams/staging/build32 Changes in build 32 from build: 30 Size delta: 0.00M -bootfw q2e30-1.olpc2.unsigned +bootfw q2e32-1.olpc2.unsigned --- Changes for bootfw q2e32-1.olpc2.unsigned from q2e30-1.olpc2.unsigned --- + Fix bug that caused very low batteries to incorrectly be marked as full. + Charge LED blinks a pattern of 4 when trickle charging + Changed duplicate error codes between NiMh and LiFePO4 to be unique. + Fix bug that caused very low batteries to incorrectly be marked as full. + Charge LED blinks a pattern of 4 when trickle charging + Changed duplicate error codes between NiMh and LiFePO4 to be unique. + OLPC keyjector support + OLPC trac 9229 - pretty boot was hiding the Windows logo screen. + ISO9660 filesystem reader - don't force filenames to upper case + OLPC trac 9227 - reset wlan when starting Windows + OLPC trac 9226 - virtualize AC97 PCI config base address so Windows XO Audio always works -- This mail was automatically generated See http://dev.laptop.org/~rwh/announcer/staging-pkgs.html for aggregate logs See http://dev.laptop.org/~rwh/announcer/joyride_vs_update1.html for a comparison ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
Martin Langhoff wrote: On Thu, Feb 12, 2009 at 11:54 PM, Simon Schampijer si...@schampijer.de wrote: Plan A - HTTPS to the rescue Just to understand better. Is the main issue that we have to change the protocol - or are you more worried about the CPU cost? Both. And also HTTPS network load, as HTTPS is a lot less cache-friendly. So as I understand the process: At registration time with the XS the cert is created and transferred to the client. Probably stored than in the profile. Browse does than integrate it when it starts. The cert integration itself in Browse should not be hard. You are right, it shouldn't be hard if you seed it in the same way my patch is seeding the cookies. Carol pointed out another alternative a couple of emails ago. Seems to sidestep the registration rework, but may be complex to implement. But I'm more than happy with my simple Plan C :-) - which is about as safe as gmail over http as most people use everyday! As save as having your email indexed by the provider... :) When thinking about it a bit more - the big plus with your approach that it's only affects Browse - code wise, which is when back porting to 0.82 a big plus, actually maybe the only way. Cheers, Simon ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
On Fri, Feb 13, 2009 at 12:19 AM, Simon Schampijer si...@schampijer.de wrote: When thinking about it a bit more - the big plus with your approach that it's only affects Browse - code wise, which is when back porting to 0.82 a big plus, actually maybe the only way. Bingo! I think you're starting to read my mind... m -- martin.langh...@gmail.com mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
joyride, staging builds, sugar releases
Sorry to insist on this, but I have not got it quite yet. Joyrides = obsolete (even though the builder script keeps churning them out and telling the olpc devel list). staging = what are these? Obsolete too? release builds = only last week there was a release build announced on the olpc devel list. Are these obsolete too? And another thing: olpc-update is not to be used anymore, or is it still on? Any clarification greatly appreciated! Victor ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: joyride, staging builds, sugar releases
2009/2/12 victor victor.lazzar...@nuim.ie: Sorry to insist on this, but I have not got it quite yet. Joyrides = obsolete (even though the builder script keeps churning them out and telling the olpc devel list). Obsolete, but not really obsoleted by anything usable *yet*. staging = what are these? Obsolete too? This is where we are staging changes to be used in v8.2.1. release builds = only last week there was a release build announced on the olpc devel list. Are these obsolete too? You are referring to the v8.2.1 candidate release? This is not obsolete, it is being pushed to various deployments. And another thing: olpc-update is not to be used anymore, or is it still on? It is still on for v8.2. It's future is perhaps a bit uncertain (maybe once we have working pure-Fedora builds it won't be active for a while, but it possibly will be resuscitated or replaced in future). I think the real question is: who are you developing for? v8.2 is pretty frozen and slow moving - the upcoming 8.2.1 includes only a handful of fixes (plus a couple of features for much improved deployability, that do not really affect the user experience). It will be adopted by deployments over the next few months, and will continue to be rolled out for probably a long time (e.g. Uruguay still using build 656 even though development terminated a long time ago). There may be an 8.2.2 with a similar collection of small fixes, depending on demand from deployments. If you want to develop for these deployments on this timeline, then you should work on top of 8.2 (sugar-0.82) and limit yourself to activity-level changes only. As for the future, the hope is that we will have a similarly-functional OS that includes the latest version of sugar asap. OLPC is working with Fedora on this, and while I suspect that the end result will be pushed as a reference OS by OLPC, there are also some other efforts which I think OLPC would probably be happy to flash onto machines at the factory (I can't speak officially, I am only a volunteer right now), including debXO, and a possibility of the community taking the 8.2 OS release and adding sugar-0.84 and some other things as an intermediate step before the pure-Fedora builds are suitable replacements. However, I personally think that all of these efforts are 6-12 months away (at least) from producing something adoptable by deployments. If you want to develop for the-future-with-unknown-timeframe, then you should work upstream at sugarlabs for sugar-0.84. Daniel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: HTML-based/Browser apps (was Re: anti-cheating)
Hey Mike, Make sure to restart Sugar between activity changes (Ctrl+Alt+Erase) as the shell doesn't automatically pick up changes yet. Also, make sure the .SVG is located in the same folder as the activity.infofile. You might try copying a .svg from another activity (say Browse) and renaming it to activity-econdev.svg just to make sure the correct file is being found. Finally, make sure the activity is Starred in the list view or it will not appear in the circle. - Your home finance initiative sounds like it dovetails nicely with my http://wiki.laptop.org/go/Finance activity. It's an extremely simple home financial calculator ala Quicken. I wrote it in the hopes that children might help their parents keep track of income and expenses and make budgets. If you have time, please take a look and let me know what you think! Cheers, Wade On Thu, Feb 12, 2009 at 5:25 AM, Mike Dawson mikeofmanches...@gmail.comwrote: Hey All, The offline spec is indeed something very cool - I had some time back done some work with XSL to try to create something that would have a similar effect with Apache cocoon - but nothing can (or should) beat a w3c standard. What we are trying to do in Afghanistan to see if we can offset the cost of the laptop is deliver info to the parents using the XO to see if we can help them to increase their income - things like home business ideas (e.g. Afghan carpets), CV writing etc. for when the kids are asleep... As HTML seems to be the most portable / compact choice we have made a collection of info as such - but as per the previous post we would rather have it a bit more prominent than making the .xol collection file. I hence copied the help activity to a new folder Econdev.activity: Left helpactivity.py as it was except for changing the line: HOME = os.path.join(activity.get_bundle_path(), 'econdev/index.html') Created activity [Activity] name = Economic Development activity_version = 10 service_name = af.asmed.EconomicDevelopment icon = activity-econdev class = helpactivity.HelpActivity license = GPLv2 Then there is an SVG I made in Inkscape activity/activity-econdev.svg - yet somehow when this folder Econdev.activity is copied to ~/Activities and sugar etc. is restarted - no icon turning up. I also tried packaging it as a .xo file and then running the install script that put it under /usr/share - it turns up, but no icon... I went through the log viewer and there didn't seem to be any special mention of it... Is there possibly a problem from not changing the Class name of the helpactivity to be unique - or some naming convention that I have neglected here? Our stuff (in English, Dari and Pashto) will go up on olpc.af and as a collection... Thanks, -Mike PS: I have to hang my head in shame that I have not yet done much Python / XO activity coding (yet) - I've done more Java/J2EE and Linux server admin thus far. I will take time over the weekend... 2009/1/13 Sameer Verma sve...@sfsu.edu: On Mon, Jan 12, 2009 at 2:15 AM, S Page i...@skierpage.com wrote: Carlos Nazareno wrote: - I'd also like to see more work done on a method to easily bundle Gnash or HTML-based/Browser applications as stand-alone activities, or at least launch the browser with the wrapped activity loaded upon startup. See the Help activity in 8.2.0, it instantiates the WebView from hulahop that underlies Browse and points it at help/XO_Introduction.html. But is it so bad to make your HTML-based application an installable collection that shows up in the OLPC Library navigation on the Browse home page? See http://wiki.laptop.org/go/Creating_a_collection. Just because most library content is static non-interactive ebook material is no reason really cool browser apps shouldn't go in the OLPC Library. One thing that might make collections more appealing and feel like applications is if the collection's library.info icon (which seems otherwise unused?!) or the web site's favicon would appear in the Journal instead or as well as the generic globe icon of Browse. I filed a confused ticket #9188 for this enhancement. - Using a local daemon or service of some sort, the method I previously outlined can also be used here for standalone mode of the tests. This way, the learner can also practice with them and learn outside of class hours. The WikiBrowse activity (WikipediaEN.activity on G1G1 8.2 laptops) starts a local python Web server and fires up a WebActivity (Browse) instance pointing at it. Better, Browse's engine is XULRunner 1.9 and it has support for most of the HTML 5 offline application spec http://www.w3.org/TR/2008/WD-html5-20080122/#offline. E.g. http://starkravingfinkle.org/projects/offline/todo.html is an expanding form you can fill out while offline that will update the web server when next online. It should work on an XO (I can't try it,
Re: etextRead activity and espeak
Tony, Read Etexts does *not* have speech disabled. If you install speech-dispatcher and configure it to use espeak (NOT espeak-generic) then it will work. What happens in my code is I try to import speech-dispatcher python and if I don't find it then I hide the Speech tab on the toolbar. Hemant Goyal was working on creating RPMs for speech-dispatcher for Fedora a few months ago, and it may be possible to do a yum install to get it. It will drag in a bunch of other stuff you don't need, though, based on my experiences with the RPMs he gave me to try out. The reason the Activity needs speech-dispatcher rather than just espeak alone is that the Python code needs to be called back on word breaks. That's the only way to do karaoke highlighting, and espeak by itself won't do it. I would also warn you that the highlighting is not perfect. Sometimes it skips a word. The way I wrote the code keeps it from falling behind and highlighting the wrong word, but it will skip one every so often, at least a couple per page. The folks on the speech-dispatcher mailing list seemed to think that festival might work better than espeak as far as these callbacks were concerned. The other thing to warn you about is that multithreaded Python apps prevent the power management code from kicking in, or at least this happened with the version of Python that the XO was using when I wrote the Activity. This may be resolved now; I can't say. There was some talk here that a newer version of Python would resolve the issue. I stopped working on these Activities in late September of last year when my basement experienced some flooding. It was January before the mold remediation was done and I was able to go back down there to program. Also, I wiped out both Linux installs I was using with espeak and replaced them with Fedora 10, so I don't currently have speech-dispatcher installed and configured, and it will take me awhile to remember what I did. I was really counting on Hemant to get SD ready for the XO, but he isn't responding to my emails these days. So, in summary, this may turn out to be more of a do-it-yourself project than you had hoped for. I would dearly love to have Read Etexts used by kids in Nepal, so be assured that I will do everything I can to help. If you want to experiment with what I created the best way would be to get an old computer that runs sugar-jhbuild or use Fedora 10 with the Sugar packages and install speech-dispatcher. Get that working before you try using an actual XO. I've been thinking about Read Etexts ever since Kindle 2 was announced and I heard it has text to speech built in. I have always thought that really good support for ebooks would make the XO a Kindle-killer. It would cost less, be readable in sunlight, give you access to thousands of free books, and when you get one a kid in a foreign land gets one too. What's not to like? Sorry I can't be more encouraging, James Simmons Tony Anderson wrote: Hi, The educational team at OLENepal would like a 'karaoke-style' text reader above all other activities on the XO. This is primarily for English. Looking at the activity code, it looks like the speech code is there but disabled. Would it be possible to release a version that supports espeak without the Speech-Dispatcher pending its implementation in Sugar? This would give us a chance to experiment with creating 'read-aloud' stories. Tony Thanks for your response. I never questioned that there was still interest in TTS on the XO. What I was wondering is if there was any progress made by Hemant Goyal or anyone else in getting the Speech-Dispatcher software included with the Sugar distribution, if the newer version of Python that resolved the power management issue was included, etc. I've sent a couple of emails to Hemant and haven't heard back from him. I was wondering if he was still working on these things, or if someone else had taken over his work, etc. He was making RPMs for Fedora for installing speech-dispatcher. James Simmons ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Guidance sought on collaboration techniques
Wade, I'll have to check out the code in Colors! What I really need is some sample code and some good docs on the APIs available. What I have now was copied from the Read activity, and not all of it is clear to me. If I understood what APIs were available that would be a big help. I will welcome feedback on my code once I have something good enough to criticize, but I'm not there yet. Thanks, James Simmons Wade Brainerd wrote: Hey James, I can help you out with this if you want. Your collaboration design sounds fine to me. I did something similar in Colors! where certain parts of the UI are disabled on the joining instances. What point are you at now? Do you need an example to get started with, or feedback about existing code, or just ideas about which APIs to use? Best, Wade On Wed, Feb 11, 2009 at 4:55 PM, James Simmons jim.simm...@walgreens.com mailto:jim.simm...@walgreens.com wrote: Benjamin, I had been using two machines to develop my Activities. One ran Xubuntu and used the sugar packages provided with the Sugar Live CD that someone made up. These were not perfect, but it was a simpler way to set up a Sugar test environment than anything else available at the time. My second box was running openSUSE 10.2 and I attempted to install Sugar-jhbuild on it with middling success. I had both pointing to the Collabora server to test sharing, and what I found was the sharing through that server worked OK for small files (like Read Etexts used) but took forever for slideshows, and frequently ran out of gas in the middle of a transfer. As for collaboration between two instances of Sugar with no jabber server between them, that never worked at all, even a little bit. As of last night both machines have Fedora 10 with the Sugar RPMs installed, so this should eliminate lots of problems I had in the past. I don't expect it to make large file transfers through the jabber server any faster, though. Plus, in my opinion copying a file from one XO to another would be better done as a function of the Journal. It isn't my idea of what real collaboration should be. The VNC idea, while worthwhile, doesn't excite me either. As an XO user I have no use for collaboration. I have nobody to play with. I could strip the collaboration code out of both my Activities and have something more than adequate for my own use. My goal is to create Activities that will get other kids excited about using them. My idea is a modest step in that direction. If I get that much working other ideas may come. I would like to stick with API's that are currently available for a couple of reasons: 1). I want to use the Sugar environment in Fedora 10. Now that I finally have a robust test environment I don't want to lose it. 2). I want to make the Activity available to the largest number of users possible. I think telepathy might do the job for me if I just understood it better. All I'm asking it to do is send some messages to a list of buddies and have them initiate some file transfers. Chat is already doing the first part, I think, and the Read code might be persuaded to do the second. Thanks, James Simmons ___ Devel mailing list Devel@lists.laptop.org mailto:Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: FoodForce2 Storyboard
I guess there is some error with the attached file. I am unable to download it. -- Ankur 2009/2/11 Mohit Taneja mohitge...@gmail.com Hi All, Please find attached the storyboard for the game FoodForce2. Looking forward to your feedback. Regards, Mohit ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel -- Best regards, Ankur Verma Email : an...@laptop.org ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
Martin, I want to understand what https traffic you are concerned will affect performance and caching. As far as I understand the need for https, it would only be used infrequently, when reauthenticating to the server. I.e..: 1. XO connects to Moodle without valid cookie and is redirected to https login. 2. https client cert is exchanged, and cookie of limited duration is planted). 3. XO connects to Moodle, cookie is valid, no redirection needed. There might be particular use cases where the data in transit needed to be protected against snooping, but a use case analysis needs to be done to identify these. I can't imagine that it would be needed in day-to-day classroom use by students. On Thu, Feb 12, 2009 at 6:55 AM, da...@lang.hm wrote: On Fri, 13 Feb 2009, Martin Langhoff wrote: On Thu, Feb 12, 2009 at 11:54 PM, Simon Schampijer si...@schampijer.de wrote: Plan A - HTTPS to the rescue Just to understand better. Is the main issue that we have to change the protocol - or are you more worried about the CPU cost? Both. And also HTTPS network load, as HTTPS is a lot less cache-friendly. note that if the XS is acting as a proxy the cache issue can be addressed. The XS can get a copy of the XO client cert at registration time, and with it can decrypt the HTTPS traffic and cache the unencrypted version. this is a lot of cpu, but it's on the XS not the XO, so it shouldn't be as bad (and there are hardware SSL encryption cards available that can be put in an XS for high-volume situations) it's not just a matter of downloading a package and installing it, but it's not rocket science either. this would have the side effect of making the XS security even more critical, but I think that it's already critical enough that this won't really make much difference in how it's secured. David Lang ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel -- It is difficult to get a man to understand something, when his salary depends upon his not understanding it. -- Upton Sinclair ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] [PATCH] webactivity: seed the XS cookie at startup
note that if the XS is acting as a proxy the cache issue can be addressed. The XS can get a copy of the XO client cert at registration time, and with it can decrypt the HTTPS traffic and cache the unencrypted version. this is a lot of cpu, but it's on the XS not the XO, so it shouldn't be as bad (and there are hardware SSL encryption cards available that can be put in an XS for high-volume situations) I'm not a security wizard, but I get uncomfortable when anybody suggests giving out copies of keys, certs, or passwords. Is this an acceptable case? Why? How would you explain the subtlies to a kid? How many adults give their passwords to phishers? -- These are my opinions, not necessarily my employer's. I hate spam. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] Activities migration status
On Thu, Feb 12, 2009 at 7:27 PM, Samuel Klein meta...@gmail.com wrote: Is there no way to move/create an activity so that the same code push will update both sl's gitorious and olpc's git? Until there is a policy of sorts in place, and better yet an endowment supporting long-term maintenance of a server hosting projects (one of the two mentioned so far in this thread, or a dedicated project-hosting service elsewhere), I would focus on creating good mirrors, rather than on picking any particular single host. There is currently still risk of losing people's work. While you wait for a best case scenario We will continue to move forward one step at a time. david SJ On Wed, Feb 11, 2009 at 3:39 PM, Luke Faraone l...@faraone.cc wrote: On Wed, Feb 11, 2009 at 3:26 PM, Samuel Klein meta...@gmail.com wrote: I like that part. Are there criteria for removing someone's project if it's deemed inappropriate? Not yet, but I assume if someone thinks that somebody else's use of SL infrastrucutre is not under the project scope we'll discuss it on the sugar-devel or IAEP mailing list. -- Luke Faraone http://luke.faraone.cc ___ Sugar-devel mailing list sugar-de...@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: FoodForce2 Storyboard
The attachment was readable using xpdf. Nice work. You should seek hosting for HTTP download of large attachments though, because many many people are given the attachment who may not need it. -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: FoodForce2 Storyboard
Sure, I would keep that thing in mind next time. Regards, Mohit On Fri, Feb 13, 2009 at 8:49 AM, James Cameron qu...@laptop.org wrote: The attachment was readable using xpdf. Nice work. You should seek hosting for HTTP download of large attachments though, because many many people are given the attachment who may not need it. -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ -- Joan Rivers - Never floss with a stranger. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] XS 0.5.1 RC - Last round of testing...
On Wed, Feb 11, 2009 at 10:37 PM, Sameer Verma sve...@sfsu.edu wrote: On Wed, Feb 11, 2009 at 8:42 PM, Martin Langhoff martin.langh...@gmail.com wrote: On Thu, Feb 12, 2009 at 2:41 PM, Sameer Verma sve...@sfsu.edu wrote: was with eth0 not showing up. It looks like I am the victim of the dreaded Realtek 8139 bug. It worked in XS 0.4 but in 0.5.1 it refuses to show up. Strange, but it does look like a driver problem. The links you provide show various different problems with that NIC. In some cases, irqpoll in the kernel boot line fixes, in others some fiddling with ethtool was needed... It'll be good to know which of the fixes helps you :-) appending irqpoll has fixed that problem. Now, I've hit another bug. This is yum broken with _sha256 as stated here. http://fedoraforum.org/forum/showthread.php?t=193507 I'm going to try the workaround. BTW, if you upgraded from XS-0.4, it might be a good idea to rm /etc/udev/rules.d/70-persistent-net.rules No, this was a clean install. I'm running the server for testing only, so I can afford to wipe it clean. Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ So, after mucking around last night and today, I wiped my XS box and reformatted it to remove ALL traces of 0.4 I have a clean 0.5.1 install on it. md5sum of the ISO is c0fde10b93cab3cb1a3bc3a42ceb5408 I've circumvented the realtek 8139 problem by appending irqpoll in grub.conf That seems to work, although I have to bring up eth0 manually and issuing dhcient eth0 I still hit the bug of _sha256 as mentioned here: https://bugzilla.redhat.com/show_bug.cgi?id=454179 Note that I am not upgrading anything. Its a clean install. I believe the appropriate word for this is: AARGH! I wish Fedora had LTS or Stable branch (it does...kinda...in RHEL...are we allowed to say CentOS here?) but that's another thread and another rant. It does remind me of why I don't run anything on Fedora anymore. Anyway, this is getting in the way. Is anyone seeing this too? If so, then its a significant barrier for 0.5.1 Suggestions? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
[Server-devel] consequences of re-registering with XS
Hi, As I noted here: http://wiki.laptop.org/go/Deployment_wishlist#Delete_registration_info we are in a sticky situation where a load of XOs are registered to one XS, which no longer exists. We want to register them to a new one, and we are having to manually go to each laptop and modify the sugar config file to allow us to register again. To avoid this situation in future (should we ever run into it again, fingers crossed we won't), we are considering a small modification to the paraguay OS build which makes the Discard network history button also clear the XS registration information (by deleting the server.backup1 line from sugar config). This code modification can be done with a single sed call, since there is already an unused sugar function to clear registration info. Of course, this means that the users (children) can now trivially lose their registration data. Are there any undesirable consequences of this that I am missing? For example, what happens if a user deletes the registration data and then re-registers with the same server.. does the XS cope with that happily? Any other points I should keep in mind, or any other options to avoiding this small nightmare in future? Thanks, Daniel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] xs-activation-server over IPv6
2009/2/8 Martin Langhoff martin.langh...@gmail.com: So initially I am going with #1-- do you think you can tweak the initrd a bit more to poke at ef01 over mesh, and ef02 over abg? Looking at activate.py, adding it to the array in try_network()... Thanks, done! New patch at http://dev.laptop.org/ticket/9246 Are your XS-side changes included in the latest 0.5.1 release, or is this scheduled for later? Thanks! Daniel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] rsync on xs-dev
Currently only through ssh. I assume you mean an rsync daemon, serving up the xs images ? I think that could be arranged... wad On Feb 12, 2009, at 6:53 PM, Sameer Verma wrote: Does xs-dev.laptop.org support rsync? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] rsync on xs-dev
On Thu, Feb 12, 2009 at 4:25 PM, John Watlington w...@laptop.org wrote: Currently only through ssh. I assume you mean an rsync daemon, serving up the xs images ? I think that could be arranged... I was trying to rsync ISOs last night (updating an older release) but it didn't work...might help those who have limited bandwidth. Sameer wad On Feb 12, 2009, at 6:53 PM, Sameer Verma wrote: Does xs-dev.laptop.org support rsync? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] rsync on xs-dev
On Thu, Feb 12, 2009 at 06:27:03PM -0800, Sameer Verma wrote: I was trying to rsync ISOs last night (updating an older release) but it didn't work...might help those who have limited bandwidth. You can rsync over SSH, and you can use --partial to ensure that the data you have got so far is not wasted for when you have to restart. Bare rsync is merely slightly more efficient, since the data is not encrypted and encapsulated by the SSH connection. -- James Cameronmailto:qu...@us.netrek.org http://quozl.netrek.org/ ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] Install from NFS server
I am trying to install the server on a machine without CD drive via NFS server. I have set up the latter and the new machine seems to be finding the share. But it reports: That directory does not seem to contain an OLPC school server installation tree I have put only the 0.5.1 image in the shared folder. Can U help. What else should be in the shared folder? I am using a USB flash drive to kick start but can't get anywhere with that when it comes to the directory containing the school server image, it reports that the directory does not seem to contain any (whereas it does). So I am now pointing it at an NFS server when it gets to that stage David Leeming ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
