February 2007 - tbnl-devel@common-lisp.net

[hunchentoot-devel] New release 0.5.1
by Edi Weitz 06 Apr '07

06 Apr '07

ChangeLog: Version 0.5.1 2007-01-18 Even more flexible behaviour of RAW-POST-DATA Download: http://weitz.de/files/hunchentoot.tar.gz Sorry for the noise, Edi.

5 15

[hunchentoot-devel] Question about error handler.
by Nicolas Lamirault 26 Feb '07

26 Feb '07

hi all i make my website with hunchentoot. it works very fine. My database backend could throw some conditions (db-connect-error, db-...-error, ...), and i would like to print the error message. i have modify the default error handler like this : (defun handle-error (arg) "Modify the Hunchentoot error dispatcher." ;;(declare (ignore arg)) (make-web-page #p"error.html" (list :message (format nil "~A" arg)))) and the HTML template : <div id="title"> Error </div> <div id="error"> <b> Internal error : </b> <br>  </div> in the final web page i see : <div id="title"> Error </div> Internal error : 500 i would like to print a customized error message. it is possible ? i try to modify my code like this : (handler-case (progn ...) (db-connect-error (cond) (setf (hunchentoot:session-value 'error-msg) cond) (hunchentoot:redirect "/test-lam/index")) ...) he index-handler which print the error message but it doesn't works. The customize error handler catch the exception before someone knows how could i make this ? thanks for any help. -- Nicolas Lamirault

2 4

[hunchentoot-devel] Darcs repositories
by Edi Weitz 22 Feb '07

22 Feb '07

[My apologies if you get this more than once.] Several people have asked for Darcs repositories of my software. These do exists now: http://common-lisp.net/~loliveira/ediware/ Special thanks to Luís Oliveira who made this possible and who maintains the repositories. Cheers, Edi.

1 0

[hunchentoot-devel] HTTP redirect bug in Allegro Lisp
by Saurabh Nanda 22 Feb '07

22 Feb '07

Hi, I have a piece of code which runs in SBCL but is throwing an error when running on Allegro Lisp. The relevant portion of the backtrace thrown by hunchentoot is given below: ->(SYS::..RUNTIME-OPERATION . :UNKNOWN-ARGS) (TPL:DO-COMMAND "zoom" :FROM-READ-EVAL-PRINT-LOOP NIL :COUNT T :ALL T) (TBNL:GET-BACKTRACE #1=#<SIMPLE-ERROR @ #x1001b57d32>) ((:INTERNAL TBNL::PROCESS-REQUEST 0) #1#) (SIGNAL #1#) (ERROR SIMPLE-ERROR :FORMAT-CONTROL "Attempt to store into purespace address #x~x." :FORMAT-ARGUMENTS #2=(182935334912)) (EXCL::ERROR-FROM-CODE 19 . #2#) (SYS::..CONTEXT-SAVING-RUNTIME-OPERATION) (NSTRING-UPCASE #3="Location") (TBNL::MAKE-KEYWORD #3#) (TBNL:REDIRECT "http://URL-DELETED") In the make-keyword function. changing the default value of the parameter destructivep to 'nil' solves this error. Is this a bug? Or what? Nandz. -- http://nandz.blogspot.com http://foodieforlife.blogspot.com

3 2

[hunchentoot-devel] Where to set up a shared hunchentoot directory
by Jonathon McKitrick 20 Feb '07

20 Feb '07

I've been running a production site from my home directory, and it's about time I change that. Are there suggested setup locations and/or permissions to run hunchentoot from a shared directory? I'm sure there are many ways to do it, but I thought I'd ask those of you who have perhaps encountered and dealt with some unforeseen issues and would share that with us. -- Jonathon McKitrick Reed Larkey Group

2 1

[hunchentoot-devel] Ajax library for Hunchentoot
by Edi Weitz 20 Feb '07

20 Feb '07

Ury Marshak has written an Ajax framework for Hunchentoot which you can find here: http://www.cliki.net/HT-AJAX http://85.65.214.241/misc/ht-ajax.html I haven't found the time yet to try it out, but it looks nice. Cheers, Edi.

2 1

[hunchentoot-devel] folder-dispatcher directory listing
by Mac Chan 18 Feb '07

18 Feb '07

Hi all, Lately I've been doing some plain html and javascript hacking on *.html and *.js file, and I found the apache directory listing to be quite handy (IE won't let you run scripts from file:/// so you must host it in a server and access with http://localhost/) I'm using mod_lisp w/ apache so this is not a problem for me but I intend to use hunchentoot alone when it stabilized. I've seen people asking for this before so here's a simple patch to enable directory listing for create-folder-dispatcher-and-handler. Originally I want to change the signature from create-folder-dispatcher-and-handler (uri-prefix base-path &optional content-type) to create-folder-dispatcher-and-handler (uri-prefix base-path &optional create-index-page-p content-type) but it makes it inconsistent with the other api. (and that I don't need to update the documentation :-) Anyway attached are the diffs so feel free to change it if you really don't want the index page enabled by default. Cheers, -- Mac (PS The code should look less horrible if cl-who is available but it's really a pain since I don't want to introduce dependencies to hunchentoot. There is one function copied directly from cl-fad for the same reason)

4 6

[hunchentoot-devel] Library for http requests
by Andrei Stebakov 12 Feb '07

12 Feb '07

Hi I am wonderng if hunchentoot or some of Edi's tools have support for http get/post requests (when I need to request some information from hunchentoot to another server). I found trivial-http, but it depends on trivial-sockets which is dead and I couldn't download the latter lib. I thought that hunchentoot would be a good place to put in such a small but useful functionality. Maybe it's already there only I couldn't find the functions. Thank you, Andrew

3 3

[hunchentoot-devel] Displaying an image in the text content
by Andrei Stebakov 09 Feb '07

09 Feb '07

Going trough the test server code it's clear how to diplay an image based on a static handler or sending a raw image stream to the client. But how can show an image in context of a normal html page (surrounded by other text tags like <div> <table> etc)? Thank you, Andrew

2 4

[hunchentoot-devel] Printing the output
by Andrei Stebakov 08 Feb '07

08 Feb '07

I am a bit confused about using macros like with-html. Let's say if I want to produce an html with my post parameter value in it. Just saying (:p (post-parameter "foo")) won't put the value in the <p> tag. On the other hand saying (:p (format t "~a" (post-parameter "foo"))) or (:p (esc (post-parameter "foo"))) will produce the expected result. Same goes with (:p (esc (with-output-to-string (s) (format s "~a" (post-parameter "foo"))))) My question is what's common about the latter examples that makes a printing possible? Does it mean that all printing within with-html should happen to *standard-output* and the esc function redirects it to it? What package should I look at to have a better understanding of it? Thank you! Andrew

3 2