factor/extra/webapps/file/file.factor

136 lines
3.4 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.server.responders http.server.templating namespaces parser
sequences strings assocs hashtables debugger http.mime sorting
html.elements logging calendar.format ;
IN: webapps.file
SYMBOL: doc-root
: serving-path ( filename -- filename )
"" or doc-root get swap path+ ;
: unix-time>timestamp ( n -- timestamp )
>r unix-1970 r> seconds time+ ;
: file-http-date ( filename -- string )
file-modified unix-time>timestamp timestamp>http-string ;
: file-response ( filename mime-type -- )
"200 OK" response
[
"Content-Type" set
dup file-length number>string "Content-Length" set
file-http-date "Last-Modified" set
now timestamp>http-string "Date" set
] H{ } make-assoc print-header ;
: last-modified-matches? ( filename -- bool )
file-http-date dup [
"if-modified-since" header-param =
] when ;
: not-modified-response ( -- )
"304 Not Modified" response
now timestamp>http-string "Date" associate print-header ;
! You can override how files are served in a custom responder
SYMBOL: serve-file-hook
[
dupd
file-response
<file-reader> stdio get stream-copy
] serve-file-hook set-global
: serve-static ( filename mime-type -- )
over last-modified-matches? [
2drop not-modified-response
] [
"method" get "head" = [
file-response
] [
serve-file-hook get call
] if
] if ;
SYMBOL: page
: run-page ( filename -- )
dup
[ [ dup page set run-template-file ] with-scope ] try
drop ;
\ run-page DEBUG add-input-logging
: include-page ( filename -- )
serving-path run-page ;
: serve-fhtml ( filename -- )
serving-html
"method" get "head" = [ drop ] [ run-page ] if ;
: serve-file ( filename -- )
dup mime-type dup "application/x-factor-server-page" =
[ drop serve-fhtml ] [ serve-static ] if ;
\ serve-file NOTICE add-input-logging
: file. ( name dirp -- )
[ "/" append ] when
dup <a =href a> write </a> ;
: directory. ( path request -- )
dup [
<h1> write </h1>
<ul>
directory sort-keys
[ <li> file. </li> ] assoc-each
</ul>
] simple-html-document ;
: list-directory ( directory -- )
serving-html
"method" get "head" = [
drop
] [
"request" get directory.
] if ;
: find-index ( filename -- path )
{ "index.html" "index.fhtml" }
[ dupd path+ exists? ] find nip
dup [ path+ ] [ nip ] if ;
: serve-directory ( filename -- )
dup "/" tail? [
dup find-index
[ serve-file ] [ list-directory ] ?if
] [
drop directory-no/
] if ;
: serve-object ( filename -- )
serving-path dup exists? [
dup directory? [ serve-directory ] [ serve-file ] if
] [
drop "404 not found" httpd-error
] if ;
: file-responder ( -- )
doc-root get [
"argument" get serve-object
] [
"404 doc-root not set" httpd-error
] if ;
global [
! Serves files from a directory stored in the doc-root
! variable. You can set the variable in the global
! namespace, or inside the responder.
"file" [ file-responder ] add-simple-responder
! The root directory is served by...
"file" set-default-responder
] bind