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World: r3wp

[!Cheyenne] Discussions about the Cheyenne Web Server

Dockimbel
4-Jan-2011
[9472]
About the possible "fixes" that Cheyenne could benefit from, Carl 
added the helper task (for async DNS) deferred boot to workaround 
setuid issues (security improvement when running Cheyenne as not 
root user).
BrianH
4-Jan-2011
[9473]
Cool, those sound useful.
Kaj
4-Jan-2011
[9474]
There's nothing complex about keeping promises
Dockimbel
4-Jan-2011
[9475]
Andreas: I share your feeling. I guess that it's easier and safer 
to add a new native in R2 than integrate all that stuff into system:// 
port (using set-modes/get-modes as interfaces).
BrianH
4-Jan-2011
[9476]
I am in favor of releasing Pro as Core and just disabling the licensing 
code; that would give us Library on Core a lot quicker than trying 
to retrofit things into Core. R2 is quite an old codebase, so a lot 
of changes would require a huge amount of work - R3 was rewritten 
for good reasons.
Andreas
4-Jan-2011
[9477]
Probably time to move this discussion to !REBOL2 Releases.
amacleod
6-Jan-2011
[9478x2]
I can't get cheyenne to serve to an ajax json request.


I can get it to read the array as a local file but it does not seem 
to work through url request.


I played with content-type: application/json which I read was needed 
but I don't know if I'm on the right track.
For example: 
json data: 
{
  "foo": "The quick brown fox jumps over the lazy dog.",
  "bar": "ABCDEFG",
  "baz": [52, 97]
}

and the js script to fetch the data:

<script>$.getJSON('http://localhost.jsontest.cgi', function(data) 
{
      alert("JSON Data: " + data.foo);
});</script>
GrahamC
6-Jan-2011
[9480]
It works fine for me
I have in my RSP pages

Print json-data
Dockimbel
7-Jan-2011
[9481]
This doesn't look like a valid URL: 'http://localhost.jsontest.cgi'
shadwolf
7-Jan-2011
[9482]
should be http://localhost/jsontest.cgino ?
amacleod
7-Jan-2011
[9483x2]
yes...i just typed it here wrong....thanks
my local script: 
<!DOCTYPE html>
<html>
<head>
  <style>img{ height: 100px; float: left; }</style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
	

<script>$.getJSON("http://localhost/jsontest.cgi”, function(data) 
{
      alert("JSON Data: " + data.foo);
});</script>
</body>
</html>

my rebol cgi script:
#!/cgi-bin/rebol.exe -cs %s %s
REBOL [Title: "json test"]
Print {
<html>
<head>
<title></title>

<meta content="text/html; charset=ISO-8859-1" http-equiv="content-type">

</head>
<body>
{
  "foo": "The quick brown fox jumps over the lazy dog.",
  "bar": "ABCDEFG",
  "baz": [52, 97]
}
</body>
</html>
}
PeterWood
7-Jan-2011
[9485]
Alan, I'm logged in to AltME from Ubuntu - so many non-ascii characters 
get displayed incorrectly. In your script the closing double-quote 
after /jsontest.cgi doesn't display properly. Perhaps you could check 
that it really is a double-quote and not a "smart-quote" in the actual 
source.
Dockimbel
7-Jan-2011
[9486]
Amacleod: Your CGI script headers looks very wrong:
- What are those "%s" on the shebang line?

- /cgi-bin/rebol.exe: this doesn't look like a valid filesystem path

- Why the Content-Type header isn't emitted as required by CGI specification?


Maybe you should read again documentation about REBOL CGI usage on 
rebol.com site and also have a look at CGI sample scripts provided 
with Cheyenne source package. Understanding what a shebang line is 
might also help: http://en.wikipedia.org/wiki/Shebang_(Unix)
amacleod
7-Jan-2011
[9487x2]
When i go to the cgi script directly in the browser I get my json 
data displayed. the cgi seems to be working.
- Why the Content-Type header isn't emitted as required by CGI specification?

not sure what this means..
Dockimbel
7-Jan-2011
[9489]
Amacleod: 

while [not understood?][read http://www.rebol.com/docs/core23/rebolcore-13.html#section-13]
GrahamC
7-Jan-2011
[9490]
alan, if you use getJson, you expect to see an application/json header. 
 So, try just $.get instead ....
amacleod
7-Jan-2011
[9491]
That worked. I get the alert but there is an error that  "data"  
(my variable) is undefined.


Can I use use the application/json header and if so what is the syntax...do 
I just replace the the "text/html" string?
Oldes
7-Jan-2011
[9492]
I guess you should print only the JSON data, not html page!
amacleod
7-Jan-2011
[9493x2]
that works, Olds! thanks alot.
only works local though...does not seem to read from remote server
Oldes
7-Jan-2011
[9495]
what kind of server?
amacleod
7-Jan-2011
[9496]
windows
Oldes
7-Jan-2011
[9497]
I mean url
amacleod
7-Jan-2011
[9498x2]
I can see the data when I url the cgi script directly so cgi is working...
bighousefdny.com/cgi-test/jsontest2.r
Oldes
7-Jan-2011
[9500x2]
And what does not work? Btw.. are you setting the content type?
use at beginning:
print "Content-Type: application/json^/"
GrahamC
7-Jan-2011
[9502x5]
No, you can't use remote server .. this is a security feature.
The json data has to be from the same server as the source web page
You need to use JSONP for cross site scripting
Additional Notes:

Due to browser security restrictions, most "Ajax" requests are subject 
to the same origin policy; the request can not successfully retrieve 
data from a different domain, subdomain, or protocol.

Script and JSONP requests are not subject to the same origin policy 
restrictions.
Anyway, we are now off topic for Cheyenne
amacleod
7-Jan-2011
[9507]
Sorry, I thought it might be a cheyenne issue...i'll move to javascript 
group
GrahamC
5-Feb-2011
[9508x2]
Longshot here .. but has anyone written a code formatter for RSP 
pages .. so that it correctly indents HTML, JS, and Rebol all on 
the same page??
there's a php pretty print here http://beta.phpformatter.com/
Kaj
5-Feb-2011
[9510]
That's one reason to write as little code as possible in templates
MikeL
6-Feb-2011
[9511]
Graham:  I am happy using Andrew's ML.r with Cheyenne to implement 
Don't Repeat Yourself on the few pages that I do. <%

 include %ml.inc  ; does [%pop.r %push.r %build-tag.r %ml.r] which 
 can be pre-loaded 
	print ml compose/deep [
		h1 "Heading"
		p {Text paragraph}
		p (now)
	]
%>
Dockimbel
28-Feb-2011
[9512]
Cheyenne's ReBorCon presentation now also available in PDF format. 
The files used for the webapp coding demo have been published too: 
http://cheyenne-server.org/blog.rsp?view=25
Kaj
28-Feb-2011
[9513]
Thanks, Doc!
Claude
28-Feb-2011
[9514]
thanks you ;-)
Dockimbel
3-Mar-2011
[9515x2]
Cheyenne reached a new milestone, as promised during the ReBorCon, 
0.9.20 is out! 

Read the announcement here: http://cheyenne-server.org/blog.rsp?view=26

All the new binaries are built using REBOL 2.7.8, enjoy!
The web site has been updated too, new documentations for Cheyenne 
are pending (will be available tonight).
james_nak
3-Mar-2011
[9517]
Doc, thanks. Can you check the Window's binary links?
Dockimbel
3-Mar-2011
[9518x3]
Broken links, fixing that...
Done.
Thanks James.
james_nak
3-Mar-2011
[9521]
Thanks.