World: r3wp
[!Cheyenne] Discussions about the Cheyenne Web Server
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onetom 2-May-2011 [10188x2] | i thank u. |
it's 6:34 here, but i slept most of the day coz im close to having pneumonia again... | |
onetom 3-May-2011 [10190x2] | hmm... sessions are not persisted anywhere? |
anyone wrote some memcached or tmp file storage for sessions? | |
Dockimbel 3-May-2011 [10192] | They are persisted on disk if you specify in globals section of config file: persist [sessions] |
onetom 3-May-2011 [10193] | noted here: http://cheyenne-server.org/wiki/Config/Persist is it ok, or there is a better place for it? |
Dockimbel 3-May-2011 [10194] | That is the right place, thanks! |
onetom 3-May-2011 [10195x2] | how can i implement a login form without sending the password in clear text? |
should i ask for digest authorization? | |
Dockimbel 3-May-2011 [10197] | switch to HTTPS. |
onetom 3-May-2011 [10198x2] | i can't find the "switch" :) ... i hate this cert and crl based pki crap... |
any drawback of using http digest, beside not being able to provide a nice login page? | |
Dockimbel 3-May-2011 [10200] | Not AFAIK. |
onetom 3-May-2011 [10201] | http://www.berenddeboer.net/rest/authentication.html this is a nice walkthru of the http auth theory with examples on how to do cross browser logout, forgotten password page, auto logout, etc etc |
Maxim 3-May-2011 [10202x6] | doc, I've been able to add a config for the worker count (min/max) within the httpd.cfg file. it took some doing and a lot of file navigation to under the deep secrets of cheyenne's startup processs ;-) |
I thought it would have been easy, but it took a bit of doing, since the boot process must *init* the httpd.r, then setup the config and then init the rest. I could have made it ugly by calling things manually or restarting workers, etc... but I ended up adding 2 new options to the uniserve/boot spec. init and no-init which allow us to select what is initialized, without knowing the full list of services. | |
so this code within cheyenne.r: shared/pool-start: any [ all [flag? 'debug 0] all [flag? 'workers args/workers/1] 4 ] shared/pool-max: any [ all [flag? 'debug 0] all [flag? 'workers any [args/workers/2 args/workers/1]] 8 ] shared/job-max: 1000 ;-- CGI/RSP requests queue size boot/with/no-wait/no-start [] ; empty block avoids loading modules from disk ---------------------------------------- now becomes: ---------------------------------------- boot/with/no-wait/no-start [init [httpd]] ; empty block avoids loading modules from disk shared/pool-start: any [ all [flag? 'debug 0] all [flag? 'workers args/workers] select services/httpd/conf/globals 'min-workers 4 ] shared/pool-max: any [ all [flag? 'debug 0] all [flag? 'workers args/workers] select services/httpd/conf/globals 'max-workers 8 ] shared/job-max: 1000 ;-- CGI/RSP requests queue size boot/with/no-wait/no-start [no-init [httpd]] ; empty block avoids loading modules from disk | |
note that this is for a version prior to the latest r135. (I'll update the above when I update to r135) | |
do you want me to commit the changes once I've updated to r135's support for min/max workers on the comand-line? | |
hum... I guess the max workers for debug should be 1 :-/ | |
onetom 4-May-2011 [10208] | Most comments are lies. They don't start out to be lies, but gradually the get out of date. You might say that developers should be disciplined enough to maintain the comments; but this is not reasonable. Comments have no detectable binding to what they describe. If you modify a function, you have no way of knowing that 1000 lines above you (or perhaps in a different file) there is a comment that contradicts what you are doing). So comments slowly degrade and turn into misinformation. -- http://www.coderanch.com/t/131147/Agile/Clean-Code-Handbook-Agile-Software u just demonstrated this principle very well ;) |
Geomol 4-May-2011 [10209] | That's an interesting viewpoint. He starts his post with: I think it would be better if the code were not complex. I think it would be better if the code was understandable at a glance. I think the effort of writing a comment for complex code is misplaced. The effort should be expended on making the code simpler and easier to understand. And we can add: produce the code using a language, that's easy to read and understand. |
Dockimbel 4-May-2011 [10210] | Max: I am very busy today, I am not sure I will have time to review your code now (you should send me a copy of the changed files first BTW). As you could see, supporting such feature at the config file level is complex because of config file being loaded only when HTTPd service starts (for historical reasons). I am not sure that initializing the HTTPd service ahead is a clean solution (the boot/ line has become a bit hard to read with this /no-start flag that loads and init HTTPd service...). The solution I had in mind was to extract the whole config file loading from %HTTPd.r and put it in %cheyenne.r. This is a deep and complex change, that is why I was waiting to have enough time to do it in a single working session. Anyway, I will examine your solution first. |
Maxim 4-May-2011 [10211] | onetom, are you talking about me? cause there are no comments in just about all of the cheyenne code. this is why its often complicated to play into the deeper roots of the app. |
onetom 4-May-2011 [10212] | Maxim: i was just talking about the comment rot effect. where is the empty block here? :) boot/with/no-wait/no-start [no-init [httpd]] ; empty block avoids loading modules from disk |
Maxim 4-May-2011 [10213] | ah, actually in my code it was updated :-) the post was sent in error, as I was editing it, specifically ... editing the comments :-D |
onetom 4-May-2011 [10214x7] | is there a way to show errors as text? somehow it happened to me yesterday but no idea how could i achieve it... |
(for now im switching to the console each time to see what's the error, so it's not a big issue of course...) | |
how can i define a common layout for my webpages? should i split the layout into header and footer and use include explicitely on each page? | |
or make it a webapp and wrap the buffer in the on-page-end event? | |
hm... daaamn, why is the webapp root-dir is not relative to the vhost root-dir? why should i specify a vhost root-dir if i use only webapps in it? | |
ehh... sessions are not lazily created either... and i couldn't even set-header 'set-cookie none session/end because it sends down 2 cookies then... | |
it's neither lowlevel nor convenient.. luckily i know how these things work in the ruby world, so i hope i will have enough time to bring the good things over... | |
Kaj 4-May-2011 [10221] | Cheyenne supports SSI |
onetom 4-May-2011 [10222] | ahha.. plus 1 concept though, but thx for the remainder, i will give it a try! |
Kaj 4-May-2011 [10223] | Agreed, I don't use SSI myself. I don't know how easy it would be to replicate with RSP, because I don't use RSP, either :-) |
onetom 4-May-2011 [10224x4] | what do u use then? direct output from .r scripts? (i used that too so far because the templating is done on client side w angularjs, so the backend is pure json(p)) |
hmm... how can i map a directory under a certain path in vhost? im trying this: yp [ root-dir %~/p/ob/yp alias "/public" %../public/ ] then for curl http://yp:8080/public/angular-0.9.15.min.js i get HTTP/1.1 301 Moved Permanently Location: /public/angular-0.9.15.min.js/ wtf? i remember seeing something like "/some/path" [ options ] in a vhost config block, but i can't find anything about it now | |
i did a ~/p/ob/yp $ ln -s ../public public as a workaround, but how can i achieve the same from the config file? | |
im guessing that i cant point out from the root-dir for one, but why? | |
Kaj 4-May-2011 [10228x2] | I use my own app platform, which is based on a pervasive templating system |
It's in REBOL, so the templating is done on the server. The concepts actually overlap with AngularJS quite well, but it's serverside | |
onetom 5-May-2011 [10230] | Kaj: overlap w angular? as in u have 2 way databinding? do u have some example sites? |
Kaj 5-May-2011 [10231x5] | It depends on the definition, but that's the direction I'm moving in. The structure is roughly MVC, and I have a method of updating web pages without the browser having to know what it means |
Try REBOL is the first dynamic site I've done that way. You stay on the same page, send in data to a service interface and get data back that updates arbitrary parts of the page | |
So you get conceptually the same effect as AngularJS, but it goes through the server. One of my goals is to maximise the REBOL part and minimise the JS part. AngularJS pulls everything in the client and is thus tied to JS and the browser incompatibilities that go with that | |
Obviously it's nice to be independent from the server - if you can get it to work cross-browser. But I always thought we have View for that. Also, it seems nice to have the browser do input checking, but if you want a robust app, you will have to get the server to guard its own consistency and end up writing all input checking twice | |
In general, I notice that almost all web platform projects (and operating system projects for that matter) are either very focused on the server, or very focused on the client, apparently depending on the preference and abilities of the founders. This doesn't make sense to me: a network app by definition needs to deal with both sides of the connection, and find the best balance | |
onetom 5-May-2011 [10236x2] | i wish rebol/view was that good to replace the browser, but im typing this on a mac w ugly, aliased, miniature fonts and i can't even use the maximize button because it fucks up the screen size and layout... |
angularjs is surprisingly backward compatible, btw... but serverside validation is still a must of course. in this particular project we tried view, btw, but we need it on a tablet later in a warehouse, so /view is not an option at the end :( | |
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