factor/extra/http/server/static/static.factor

102 lines
2.8 KiB
Factor
Executable File

! Copyright (C) 2004, 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: calendar html io io.files kernel math math.parser http
http.server namespaces parser sequences strings assocs
hashtables debugger http.mime sorting html.elements logging
calendar.format new-slots accessors ;
IN: http.server.static
SYMBOL: responder
! special maps mime types to quots with effect ( path -- )
TUPLE: file-responder root hook special ;
: unix-time>timestamp ( n -- timestamp )
>r unix-1970 r> seconds time+ ;
: file-http-date ( filename -- string )
file-modified unix-time>timestamp timestamp>http-string ;
: last-modified-matches? ( filename -- ? )
file-http-date dup [
request get "if-modified-since" header =
] when ;
: <304> ( -- response )
304 "Not modified" <trivial-response> ;
: <file-responder> ( root hook -- responder )
H{ } clone file-responder construct-boa ;
: <static> ( root -- responder )
[
<content>
over file-length "content-length" set-header
over file-http-date "last-modified" set-header
swap [ <file-reader> stdio get stream-copy ] curry >>body
] <file-responder> ;
: serve-static ( filename mime-type -- response )
over last-modified-matches?
[ 2drop <304> ] [ responder get hook>> call ] if ;
: serving-path ( filename -- filename )
"" or responder get root>> swap path+ ;
: serve-file ( filename -- response )
dup mime-type
dup responder get special>> at
[ call ] [ serve-static ] ?if ;
\ serve-file NOTICE add-input-logging
: file. ( name dirp -- )
[ "/" append ] when
dup <a =href a> write </a> ;
: directory. ( path -- )
dup file-name [
<h1> dup file-name write </h1>
<ul>
directory sort-keys
[ <li> file. </li> ] assoc-each
</ul>
] simple-html-document ;
: list-directory ( directory -- response )
"text/html" <content>
swap [ directory. ] curry >>body ;
: find-index ( filename -- path )
{ "index.html" "index.fhtml" }
[ dupd path+ exists? ] find nip
dup [ path+ ] [ nip ] if ;
: serve-directory ( filename -- response )
dup "/" tail? [
dup find-index
[ serve-file ] [ list-directory ] ?if
] [
drop request get redirect-with-/
] if ;
: serve-object ( filename -- response )
serving-path dup exists? [
dup directory? [ serve-directory ] [ serve-file ] if
] [
drop <404>
] if ;
M: file-responder call-responder ( request path responder -- response )
over [
".." pick subseq? [
3drop <400>
] [
responder set
swap request set
serve-object
] if
] [
2drop redirect-with-/
] if ;