factor/basis/ftp/client/client.factor

107 lines
2.9 KiB
Factor

! Copyright (C) 2008 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays classes.singleton combinators
continuations io io.encodings.binary io.encodings.utf8
io.files io.pathnames io.sockets kernel io.streams.duplex math
math.parser sequences splitting namespaces strings fry ftp
ftp.client.listing-parser urls ;
IN: ftp.client
: (ftp-response-code) ( str -- n )
3 head string>number ;
: ftp-response-code ( string -- n/f )
dup fourth CHAR: - = [ drop f ] [ (ftp-response-code) ] if ;
: read-response-loop ( ftp-response -- ftp-response )
readln
[ add-response-line ] [ ftp-response-code ] bi
over n>> = [ read-response-loop ] unless ;
: read-response ( -- ftp-response )
<ftp-response> readln
[ (ftp-response-code) >>n ]
[ add-response-line ]
[ fourth CHAR: - = ] tri
[ read-response-loop ] when ;
ERROR: ftp-error got expected ;
: ftp-assert ( ftp-response n -- )
2dup [ n>> ] dip = [ 2drop ] [ ftp-error ] if ;
: ftp-command ( string -- ftp-response )
ftp-send read-response ;
: ftp-user ( url -- ftp-response )
username>> "USER " prepend ftp-command ;
: ftp-password ( url -- ftp-response )
password>> "PASS " prepend ftp-command ;
: ftp-cwd ( directory -- ftp-response )
"CWD " prepend ftp-command ;
: ftp-retr ( filename -- ftp-response )
"RETR " prepend ftp-command ;
: ftp-set-binary ( -- ftp-response ) "TYPE I" ftp-command ;
: ftp-pwd ( -- ftp-response ) "PWD" ftp-command ;
: ftp-list ( -- )
"LIST" ftp-command 150 ftp-assert ;
: ftp-quit ( -- ftp-response ) "QUIT" ftp-command ;
: ftp-epsv ( -- ftp-response )
"EPSV" ftp-command dup 229 ftp-assert ;
: parse-epsv ( ftp-response -- port )
strings>> first "|" split 2 tail* first string>number ;
: open-passive-client ( url protocol -- stream )
[ url-addr ftp-epsv parse-epsv with-port ] dip <client> drop ;
: list ( url -- ftp-response )
utf8 open-passive-client
ftp-list
stream-lines
<ftp-response> swap >>strings
read-response 226 ftp-assert
parse-list ;
: (ftp-get) ( url path -- )
[ binary open-passive-client ] dip
[ ftp-retr 150 ftp-assert drop ]
[ binary <file-writer> stream-copy ] 2bi
read-response 226 ftp-assert ;
: ftp-login ( url -- )
read-response 220 ftp-assert
[ ftp-user 331 ftp-assert ]
[ ftp-password 230 ftp-assert ] bi
ftp-set-binary 200 ftp-assert ;
: ftp-connect ( url -- stream )
url-addr utf8 <client> drop ;
: with-ftp-client ( url quot -- )
[ [ ftp-connect ] keep ] dip
'[ _ [ ftp-login ] _ bi ftp-quit drop ] with-stream ; inline
: ensure-login ( url -- url )
dup username>> [
"anonymous" >>username
"ftp-client@factorcode.org" >>password
] unless ;
: >ftp-url ( url -- url' ) >url ensure-port ensure-login ;
: ftp-get ( url -- )
>ftp-url [
dup path>>
[ nip parent-directory ftp-cwd drop ]
[ file-name (ftp-get) ] 2bi
] with-ftp-client ;