World: r3wp
[!Cheyenne] Discussions about the Cheyenne Web Server
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Oldes 10-Jun-2007 [1606x2] | and it looks strange... I'm not sure if it's save to use just to file! |
safe | |
Graham 10-Jun-2007 [1608x3] | ahh.. that is the problem |
I replaced url-encode with my own function, and it works fine now. | |
sweet | |
Maarten 10-Jun-2007 [1611x2] | Not sure. Change this inthe RSP and see what happens: print rejoin [ "Dehex: " dehex head test <br/> ] |
Graham: submit your own function here so Doc can include that in the next release (and we all to in the meantime :-) | |
Graham 10-Jun-2007 [1613x2] | this is straight from the cookies-client.r |
url-encode: func [ {URL-encode a string} data "String to encode" /local new-data ][ new-data: make string! "" normal-char: charset [ #"A" - #"Z" #"a" - #"z" #"@" #"." #"*" #"-" #"_" #"0" - #"9" ] if not string? data [return new-data] forall data [ append new-data either find normal-char first data [ first data ][ rejoin ["%" to-string skip tail (to-hex to-integer first data) -2] ] ] new-data ] | |
Dockimbel 10-Jun-2007 [1615] | Thanks Graham, I'll look at your code and fix my url-encode function asap. |
Graham 10-Jun-2007 [1616] | I think tomc wrote the original version about 1999 or so ! |
Maarten 10-Jun-2007 [1617] | Proven technology ;-) |
Oldes 10-Jun-2007 [1618] | I use: url-encode: func [ "URL-encode a string" data "String to encode" /local new-data ][ new-data: make string! "" normal-char: charset [ #"A" - #"Z" #"a" - #"z" #"@" #"." #"*" #"-" #"_" #"0" - #"9" ] if not any [string? data binary? data] [return data] parse/all data [any[ copy tmp some normal-char (insert tail new-data tmp) | copy tmp some #" " (insert/dup tail new-data #"+" length? tmp) | copy tmp 1 skip ( insert tail new-data rejoin ["%" as-string skip tail (to-hex to integer! to char! tmp) -2] ) ]] new-data ] |
Maarten 10-Jun-2007 [1619] | I think Will's mod-rewrite does what I want. Perhaps I can test and document it :-) |
Dockimbel 10-Jun-2007 [1620] | Marteen, about your questions, there's currently several web sites running with several months uptime. Cheyenne is quite resistant to all classic web attacks (tested with the Nikto package). About speed and performances, I've done a few test a year ago but a lot of things changed since, so I need to do some new benchmarking (anyone tried with Apache's ab tool ?) |
Oldes 10-Jun-2007 [1621] | but it could be modified not to create new data but rather modify the existing value. |
Maarten 10-Jun-2007 [1622] | Thanks. I suspect 100+ reqs/sec should be easily doable |
Dockimbel 10-Jun-2007 [1623x2] | Oldes, thanks, I've made a minimal url-encode function (due to lack of time). I'll wrote a better one for the next release. Not sure what approach is faster, changing the argument series or building a new one...will test that. |
Marteen: for static 1ko files on a recent hardware, it should be around 500+ req/s. | |
Maarten 10-Jun-2007 [1625] | I am thinking of RSP pages. |
Dockimbel 10-Jun-2007 [1626] | raw testing locally gives me : 188 req/s on /show.rsp |
Maarten 10-Jun-2007 [1627x2] | :-) |
That's what Iw anted to know: in the 10s-100s/sec | |
Dockimbel 10-Jun-2007 [1629x2] | AMD 3500+ (not the latest hardware) |
There's still space for optimization...and R3 will make it run even faster ;-) | |
Oldes 10-Jun-2007 [1631] | I need 3s to get 100 requests on show.rsp... but it's because of my FW |
Maarten 10-Jun-2007 [1632x4] | I saw wil reported 200 reqs/sec with an Ajax/DB (mysql) app on a dualcore |
Those are good numbers. because data manipulation with your mysql:// is so much easier I think this will be much faster in development, deployment than most other web solutions. And performance is good enough. | |
Do you provide commercial support on Cheyenne? | |
Wrt session support: nothing stops me (or anyone else) to create a db-session lib that you can use from RSPs. The RSP model is inherently extensible. | |
Dockimbel 10-Jun-2007 [1636] | Sure, you can bypass the internal session engine and use your own ;-). Commercial support on Cheyenne, yes, that's a service we're already offering. |
Maarten 10-Jun-2007 [1637x2] | OK, I'll try to add some code that works database driven and mail to you. |
Wrt commercial support: what are the prices and what is the service (perhaps better to discuss this privately unless you can make a marketing statement ;-) | |
Dockimbel 10-Jun-2007 [1639] | I'll contact you privately tomorrow about that. |
Maxim 11-Jun-2007 [1640x5] | its now official, I am starting work on the most significant (web side) module for cheyenne IMO. remark engine integration :-) |
I don't know how rsp fits into the picture, but once I have something of a remark loadable lib working, I'll try to get others to better define how to merge rsp and remark (mainly what rsp can add to remark... things like session control maybe). maybe rsp doesn't even become relevant... more details to come as I work out all the parts of this endeavor. btw, this effort is brought up by need... not just hobby fun. | |
btw I use the url encode from graham and it works very well. | |
I also did an html-encode to allow easier form interaction... does anyone find a use for that? | |
(anyone *else*) | |
btiffin 11-Jun-2007 [1645] | I'll be in like Flint... |
Maxim 11-Jun-2007 [1646x2] | btw... your cheyenne home page should be updated... the main link is wayyy old. |
that was a message for doc... and sorry if reading it , it sounds like an order.. <phew> sooo not intentional... the download link I mean, on the main cheyenne root page... you really should update that root page its seems to be like 6 months old now! | |
Dockimbel 12-Jun-2007 [1648x7] | Max: glad to see you using Cheyenne too. About the home page, yes, it's still the old one, that's intentionnal for a couple more weeks, I want to reach a 1.0 beta first before putting the new Cheyenne out in the wild (that's why I keep the current releases almost confidential). Currently I want to focus on development and documentation, and only support a small group of early adopters (that's you guys ;-)). |
A precision about modules : modules are executed in Cheyenne's main process (same process as UniServe and HTTPd service), so modules execution has a direct impact on Cheyenne performances. In order to obtain the best performances and best scalability, you should implement also what is currentle called in UniServe : a "handler". A handler in UniServe's context is a module executed in a background process, so it's not blocking Cheyenne's main process. A good approach might be to implement a module first, then export some of the most CPU intensive work in a external bg handler. That's the way CGI and RSP support is implemented. For a good example, see %mod-action.r and %handlers/CGI.r | |
If some of you needs to implement handlers now, just ping me here, and I'll write some preliminary docs on bg tasks API (quite short and simple in fact). | |
Btw, mod-action provides a general purpose background tasks launcher, you could use it for making your first "bg handler". Here's a small sample code for implementing a bg task handler called "demo" : - Add in %httpd.cfg in globals section : bind-extern demo to [.dem] - Add %handlers/demo.r : REBOL [ Title: "DEMO handler" ] install-module [ name: 'demo on-task-received: func [data][ data: reduce load data wait 0:0:3 ; simulates a 3sec long processing result: reform [ ; you have to return the response string in 'result <html><body> "You're IP is :" data/ip </html></body> ] ] ] - Then create a fake %www/test.dem file (with any content, not used in this demo handler) - Launch Cheyenne and try : http://localhost/test.dem | |
The drawback of using mod-action is that you're tight to mod-action's communication dialect. If you need or want to pass other information between Cheyenne main process and the bg task handler, you have to write your own messaging dialect (quite easy, look at mod-action source code). | |
I know the "install-module" function name is confusing, all the UniServe's related function and concept naming will be updated shortly after Cheyenne 1.0 to be more simple and less confusing. | |
Notice one important thing about bg handlers programming, you should have exactly the same handler name and handler filename (watch out for case-sensitive filesystems). | |
Terry 12-Jun-2007 [1655] | Hey Doc, thanks.. One thing I was trying with Uniserve years ago went like this.. 1) A http request is received as usual. (port 80) 2) Depending on the request, Uniserve would launch a process that may run for hours (ie: reading a website looking for changes), and would occasionally send a message back to the ip address, but on a different port (communicates to a flash script on the original response page, that in turns manipulates the DOM.) So, what's the best method to run these small scripts as to not block, and close without closing the server. I still want to serve up an HTML response, so it's a hybrid of sorts.. sends back a page AND runs it as a handler too? |
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