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World: r3wp

[!Cheyenne] Discussions about the Cheyenne Web Server

onetom
20-Apr-2011
[9988]
if u note it down here tonite i will shovel ur words into the cheyenne 
wiki
Dockimbel
20-Apr-2011
[9989]
I need to work on Red this afternoon, I'll do a pass on things to 
add in Cheyenne tonight.
onetom
20-Apr-2011
[9990x2]
the binary works, the source doesn't...
the source version just gives 404 to everything
Maxim
20-Apr-2011
[9992]
can anyone get a login for the cheyenne wiki?


I'd really like to put down my trials and errors of building my own 
cheyenne mod (with handler), so that others may benefit of knowing 
the few little caveats which can make the whole thing fail .... 
maybe do something like a step by step tutorial to begin with.


I'd also like to document all the phases of each internal layer of 
cheyenne (there are many), so that we can more easily navigate the 
code, knowing what we are doing and what other phase is part of each 
type of mod,extension, service, etc.   often, we see just one or 
two parts of a system implemented per module and its hard to get 
the whole picture.   


ironically, looking at the base objects is also hard to do, since 
there is so much "internal" code that it gets REALLY hard to understand 
what is internal, what is "interface" and what is provided as helper 
funcs for your own systems to use.  Add the fact that there are many 
layers sitting over each other, some layers which aren't actually 
layers of code, but layers in the "chain of command" and various 
phases.


now that I've made sense of a *portion* of this, I think I'm well 
placed to start documenting this.   I think that having a complete 
api reference for cheyenne would be really good for adoptance.


It would allow many of us to simply create integrated tools which 
just drop into cheyenne.  (like remark)
onetom
20-Apr-2011
[9993]
~1.5yr ago i backed off from cheyenne because i could build a configuration 
service from the mini webserver on rebol.org. it's just ~60 likes 
of code and handles get only
Henrik
20-Apr-2011
[9994]
My main weakness with Cheyenne is the debugging of webapp handlers. 
I simply can't tell what's going on and why they won't run in my 
webapp.
Kaj
20-Apr-2011
[9995x5]
show.cgi: I can't provide a CGI script that would work out of the 
box on all OSes and every possible local configuration, so I've left 
it as-is for users to adapt the shebang line. Using onetom's setup 
script might be the best solution, I'm thinking about integrating 
it in the Cheyenne sources package.
Odd, I don't remember having to fix it before, and I didn't formalise 
it in my build scripts, but thanks
Kaj: fast-rebol-cgi issue fixed in revision 131. If you need a new 
Linux binary, I can build you one (just let me know if you prefer 
a /Pro or /Cmd version).
Pro please, but no hurry. If you can combine it with other changes, 
please do
Ah, wouldn't it be that the shebang line doesn't need to be adapted 
once fast-rebol-cgi is enabled again?
Dockimbel
20-Apr-2011
[10000x3]
Right, in fast-rebol-cgi mode, the shebang line is not processed.
Also, I might have changed the shebang lines in CGI demo scripts 
to Windows format for local testing without reverting them to UNIX 
format once done.
I think that I'll setup some automated nightly builds, but probably 
only for Linux target as a start. I could later add Windows support 
(I have a Windows box running 24/7), but MacOS will be missing.
Maxim
20-Apr-2011
[10003]
if you have all the setup and scripts, I have a mac machine running 
24/7... it could easily grab the lates svn and dump the build where 
you want  :-)
Dockimbel
20-Apr-2011
[10004]
No time tonight to setup the automated builds, will do that tomorrow 
after finishing 8/16-bit support in Red/System.
onetom
20-Apr-2011
[10005]
thx for not disappearing in the depths of ur cave without a word 
;)

my jsondb works with angular now thru cheyenne, btw. no delete though, 
but not a big issue yet.
Kaj
20-Apr-2011
[10006]
Ditto. Doc seems to work harder on Cheyenne while taking on Red. 
Maybe we should come up with a third major project for him ;-)
Dockimbel
21-Apr-2011
[10007]
If you can provide me a solution to avoid sleeping, why not. ;-)
Kaj
21-Apr-2011
[10008]
I've been working on one, but I still need to debug it. The current 
method causes crankiness
Maxim
21-Apr-2011
[10009]
my take on sleep  :  The most useful way to waste time    ;-)
Kaj
21-Apr-2011
[10010]
I guess you're forced to that conclusion if you have kids :-)
Maxim
21-Apr-2011
[10011]
hehe
Kaj
21-Apr-2011
[10012]
I don't even consider it wasted, because I know my brain programs 
on while asleep. At dawn, it will often have worked out yesterday's 
problem. The question is whether the code input of Doc's extra project 
can fit in his waking time
Maxim
21-Apr-2011
[10013x3]
yeah, I know... I have 4 batch cores (which is why I often work as 
quickly on 4 projects as some do on one  :-)
but when the problems are complex, the night sleep doesn't fill up 
the whole time slot.   i.e. the solution is resolved and there is 
still a lot of batch time left.
btw folks, a funded, cheyenne-related project I'm working on has 
been green lit for public release.  I'll be doing a full announcement 
tomorrow on what it is, and possibly even a prototype code release. 
 :-D
GrahamC
22-Apr-2011
[10016x2]
give us a hint
a small bone will do
Maxim
22-Apr-2011
[10018]
web api
Dockimbel
22-Apr-2011
[10019x3]
FYI, I'm working on setting up automated Linux builds for Cheyenne.
Automated builds are now up and running (Linux only): http://cheyenne-server.org/download.shtml
I will push some changes tonight to see if it works as expected.
onetom
22-Apr-2011
[10022]
r u generating that download.shtml dynamically?
Maxim
22-Apr-2011
[10023]
very nice download pages.  probably one of the most conscice page 
of this kind I've ever been to  :-)
onetom
22-Apr-2011
[10024x3]
i found the version numbers pretty confusing though and the binaries 
are not sharply separated from the source packages
newcomers have no freaking idea what is pro and what is cmd..
but i don't have any explicit idea how to make it better, so i didn't 
want to complain yet ;D
Maxim
22-Apr-2011
[10027]
he actually does give the difference between /pro and /command on 
the page.
onetom
22-Apr-2011
[10028]
but do i need a keyfile to run it? is it legal to run it? if there 
is a version which knows such extra features but still miniscule, 
what's the reason having to separate versions?
Maxim
22-Apr-2011
[10029x3]
I guess there is one title which might be added... 
Nightly builds:


just before "Sources tarballs of latest revision are also available"
compiled versions do not require a key, that is what paying the SDK 
is for.  there is no need to talk about license keys within the binary 
packages... 


there could be another page which lists all the various source license 
and REBOL interpreter requirements though, 
with just a link on this page.  something like:


<a href="rebol-vs-cheyenne-licensing.shtml" >notes about required 
REBOL license and interpreter version requirements for use of source 
versions </a>
(should remove the first "required" in that sentence ;-)
GrahamC
22-Apr-2011
[10032x2]
keys are not required to run sdk/command encapped builds
keys are only required to do the encapping
Dockimbel
22-Apr-2011
[10034]
Thanks for your suggestions, I'll try to improve this page, especially 
for newcomers that don't know about REBOL.
Maxim
22-Apr-2011
[10035x2]
ok, so I promised a little announcement about work I have been doing 
in/with/for cheyenne...

I have built a web service module (mod) for cheyenne.
  -----------------------
  features/highlights
  -----------------------

   * extremely fine tuned to cause the least cpu hit on the server process 
   since ALL processing is done in worker processes.

   * it uses an arbitrary number of rebol script files which you assign 
   to any host in the config file. (even the default)

   * once assigned, these files are compiled dynamically (as one app) 
   by the mod and are exposed via http by the server.

   * only the functions you *chose* are *ever* visible on the web, allowing 
   you to include support libs, data and function right in your server-side 
   api.

   * no direct execution of code occurs, *ever* from the client to the 
   server, all input is marshaled, and parameters are typed to your 
   function specs.

   * allows ANY type of web api to be delivered, from REST to SOAP like 
   interfaces.

   * output is programmable, so that you can output AS  json, xml, html, 
   txt, etc.

   * interface is also programmable, so that you can provide GET params, 
   POST forms, POST (XML, JSON, REBOL native data)

   * Automatic API documentation via source scanning and function help 
   strings .  there will also be some form of comments which will be 
   used by documentation.

   * No suport for sessions. this is part of your application layer, 
   which should use https and session keys in the submitted data, if 
   you require it.

   * it takes litterally 5 minutes to convert your internal rebol code 
   into web services which obey internet standards.

   * System is auto-reconfiguring... i.e.  you don't need to close cheyenne 
   to update the service, just restart the workers.
so, when will this be available?


*very soon*  I am building my first test release for my client tonight.


most of the research and prototyping is done, I already did some 
client demos for the people who are funding this project and I'm 
now in the "delivery" phase.


The most complicated parts of the system are already working (i.e. 
handler processes, dynamic compilation, automatic api interface building, 
per-host api/config, request/response chain of command, multi-format 
output, and more.)

a lot of details are still "up in the air" as far as implementation 
goes, so if you really have a need for this, PLEASE STAND UP and 
raise your voice.  tell me what you need, how you want it to work, 
etc.

so far I plan to deliver the first release with: 

  support 4 interfaces for calling : GET url, POST XML, POST Form data, 
  POST JSON.

  support 4 output formats : XML, HTML, JSON, TXT (which is in fact 
  rebol native data)


obviously this will be an ongoing project and anyone who is interested 
in helping out is welcomed to do so.  :-)
Gregg
22-Apr-2011
[10037]
Sounds cool Max. We have some Cheyenne work going on, so this is 
definitely of interest.