World: r3wp
[CGI] web server issues
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| BrianW 28-May-2005 [168] | I mean, I am getting okay results from the command line (no aborted message), but still get the same error message when run as cgi. |
| Volker 28-May-2005 [169] | then i remember that wrong. sad. |
| BrianW 28-May-2005 [170x2] | [[wisti-:-localhost] cgi-bin]$ /usr/local/bin/rebol -c time.r content-type: text/html <HTML> <BODY> Date/time is: 28-May-2005/16:47:35-7:00 </BODY> </HTML> [[wisti-:-localhost] cgi-bin]$ |
I'm a little baffled. | |
| Volker 28-May-2005 [172x2] | make an xterm and unset DISPLAY. that should give the error-message. |
or try it from one of the system-consoles, utside x. | |
| BrianW 28-May-2005 [174x2] | [[wisti-:-localhost] cgi-bin]$ unset DISPLAY [[wisti-:-localhost] cgi-bin]$ /usr/local/bin/rebol -c time.r content-type: text/html <HTML> <BODY> Date/time is: 28-May-2005/16:50:36-7:00 </BODY> </HTML> |
no affect. I even tried shifting over to another virtual console and ran from there with no bad luck. | |
| Volker 28-May-2005 [176] | ^/view should tell something about missing font or such. *shrug* |
| BrianW 28-May-2005 [177] | I'm using rebcmd2555042a1 for these tests now. |
| Volker 28-May-2005 [178] | rebcmd has no /view IIRC and should run fine. rebcmdview would be interesting. until now i have just given up with linux-cgi and graphics, but never tried the betas. |
| BrianW 28-May-2005 [179] | dang |
| Allen 28-May-2005 [180] | ;Brian. does this run for you? print "Content-Type: text/plain^/^/" print now probe system/options |
| BrianW 28-May-2005 [181x2] | nope. I'm starting to think it's a Linux distro issue - I'm running Fedora Core 4 beta |
.oO(thinking it's time to downgrade) | |
| Allen 28-May-2005 [183] | OK. something else to try. clutching at straws. Sometimes illegal chars before rebol header. Try removing the blank line between !path-to-rebol & REBOL [] line |
| BrianW 28-May-2005 [184] | no luck |
| Allen 28-May-2005 [185] | does http://www.rebol.net/cgi-bin/rbbs.r?cmd=sourcework? |
| BrianW 28-May-2005 [186] | Not sure if I want to even try, if time.r doesn't work :-D |
| Allen 28-May-2005 [187] | I've had these issues a couple of times, and never had a satisfactory reason/answer why, sometimes just copying script contents pasting into a new file with new name, and then it works. |
| BrianW 28-May-2005 [188] | I'm also having problems with AltMe segfaulting on quit, now that I think about it. |
| Allen 28-May-2005 [189] | lets take this private.. and hopefully post a solution when done. |
| BrianW 28-May-2005 [190] | ... silly question, does the shebang line work within rebol scripts? |
| Sunanda 29-May-2005 [191] | The shebang is necessary so the webserver can find the right program to execute. (Unless you have set up an appropriate file association between the file type and rebol.exe then you may not need it under some operating systems and webservers) The shebang line is treated as a comment by REBOL.exe -- as is everything before the REBOL [...] header |
| BrianW 29-May-2005 [192] | That's what I thought, but I'm having bizarre issues with the shebang and rebol scripts today. |
| Sunanda 29-May-2005 [193] | I know the feeling.....I've had that at times too. But all my solutions have already been suggested by Allen or Volker. Good luck! |
| BrianW 29-May-2005 [194] | Well, I don't have it working on my home machine, but I've got it on coolnamehere.com. So I can work on CGI stuff, and figure out what's wrong on my machine at my own leisure :-) |
| eFishAnt 5-Jun-2005 [195x2] | I think maybe I am the next one going down this path, and somehow I stumbled... :-\ |
I am trying to sort out what the POST data should look like coming to a Rebol web server from a browser after someone hits submit. | |
| Sunanda 5-Jun-2005 [197] | It's fairly straigt-foward (I think!). .......If you have no multi-part data, then just used the "standard" read-cgi -- but remember that on some platforms no input returns "" while on others it returns none http://www.rebol.com/docs/words/wread-io.html .....If you have multi-part data (say an uploaded file), then use Andreas' decode-multipart-form script: http://www.rebol.org/cgi-bin/cgiwrap/rebol/ml-display-message.r?m=rmlKVSQ .....If the form could have both or neither (ie there may or may not be a file uploaded), then each of the above solutions will fail (Carl's when there is. and Andreas's when there isn't)....So wrap the full code in a few attempts to handle that. |
| eFishAnt 5-Jun-2005 [198] | I would like to be able to look at exactly what the browser submits, so I can compare that to what I read in. There must be some way to catch what the browser is sending (or maybe I just have to look with ethereal at the packets) |
| Sunanda 5-Jun-2005 [199] | Stick a proxy in the middle and check the data stream? |
| eFishAnt 5-Jun-2005 [200] | aha, that is interesting...one more level of program to run simultaneously, but I hadn't thought of doing that. |
| Sunanda 5-Jun-2005 [201] | To see what REBOL receives, just: read-io system/ports/input buffer Though that may already have been too massaged for your purposes. |
| MikeL 5-Jun-2005 [202] | Steve, If it is a small number of fields, you can change the html submit action from a 'Post to a 'Get then you will see the fields in the URL when submitted. Just take a copy of the HTML page if it is not yours and look for the Action word in the Form to change then run it yourself. |
| Volker 5-Jun-2005 [203x4] | (AFAIK:) The browser submits what read-cgi reads. Post means: give script all data in stdin (system/ports/input). Thats for lots of data, when you post something. Get means, give data in url. Thats for getting data, the query is only short (and typable in urlbar). So read-cgi write that in a file and read it in an editor. |
Andreas script does the same (thanks for link sunanda ;) You find there a 'read-post-data, thats read-cgi with another name. and that is used in 'decode-multipart-form-data. | |
A second source of information are the environment-vars passed by the server. They are in system/options/cgi. 'decode-multipart-form needs system/options/cgi/content-type. There youself can look what the datas are too. if it is "multipart/form-data", use 'decode-multipart-form. i don't know the other types, just send a script a form and dump it. | |
Steve, now i read your question again, you are writing a complete web-server? Why not looking at one available? Patch %webserv.r to probe a bit. It also splits the stuff into system/options/cgi, so you can study how to do that. Only problem is with post-data, its system/ports/input works a bit different to a real webserver. You need to look in /content-length and use a copy/part instead of carls loop. and sometimes to set the right port-modes by hand IIRC. | |
| eFishAnt 5-Jun-2005 [207x3] | you mean Cal's loop, right, Volker? |
I have looked through that some, and I had read the comments in here earlier. | |
I was able to see some packets in ethereal (as a comms guy, I always dig through the communications messages to understand what happens, so starting to narrow that down. | |
| Chris 1-Jul-2005 [210] | Anyone know a good resource on CHMOD and web folder permissions? Covering eg. what world-executable rights on a folder allows? |
| Tomc 1-Jul-2005 [211x2] | it allows the directory to be entered/traversed by people who are not the owner of the dir or in the group the directory belongs in |
that is a directory may be "readable" but you still need to be able to open it to read it | |
| Gabriele 1-Jul-2005 [213x3] | if a dir is readable but not "executable", you can list its contents but not access files in it. |
if x but not r you can access files in it but not list its contents | |
if both, you can access files in it and list its contents. | |
| eFishAnt 3-Jul-2005 [216] | any good imagemap examples in REBOL? |
| Anton 4-Jul-2005 [217] | for what purpose ? |
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