factor/library/httpd/file-responder.factor

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! :folding=indent:collapseFolds=0:
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! $Id$
!
! Copyright (C) 2004 Slava Pestov.
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions are met:
!
! 1. Redistributions of source code must retain the above copyright notice,
! this list of conditions and the following disclaimer.
!
! 2. Redistributions in binary form must reproduce the above copyright notice,
! this list of conditions and the following disclaimer in the documentation
! and/or other materials provided with the distribution.
!
! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
IN: file-responder
USE: combinators
USE: html
USE: kernel
USE: lists
USE: files
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USE: namespaces
USE: parser
USE: regexp
USE: stack
USE: stdio
USE: streams
USE: strings
USE: httpd
USE: httpd-responder
!!! Serving files.
: file-header ( filename -- header )
"200 Document follows" swap mime-type response ;
: serve-file ( filename -- )
dup file-header print <filebr> "stdio" get fcopy ;
!!! Serving directories.
: file>html ( filename -- ... )
"<li><a href=\"" swap
! dup directory? [ "/" cat2 ] when
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chars>entities
"\">" over "</a></li>" ;
: directory>html ( directory -- html )
directory [ file>html ] map cat ;
: list-directory ( directory -- )
serving-html
[
"<html><head><title>" swap
"</title></head><body><h1>" over
"</h1><ul>" over
directory>html
"</ul></body></html>"
] cons expand cat write ;
: serve-directory ( directory -- )
dup "/index.html" cat2 dup exists? [
nip serve-file
] [
drop list-directory
] ifte ;
!!! Serving objects.
: serve-static ( filename -- )
dup directory? [
serve-directory
] [
serve-file
] ifte ;
: serve-script ( argument filename -- )
[ swap "argument" set run-file ] with-scope ;
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: parse-object-name ( filename -- argument filename )
dup [
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dup "(.*?)\\?(.*)" groups dup [ nip call ] when swap
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] [
drop f "/"
] ifte ;
: file-responder ( filename -- )
"doc-root" get [
parse-object-name "doc-root" get swap cat2
dup exists? [
dup file-extension "lhtml" = [
serve-script
] [
nip serve-static
] ifte
] [
2drop "404 not found" httpd-error
] ifte
] [
drop "404 doc-root not set" httpd-error
] ifte ;