factor/extra/s3/s3.factor

140 lines
3.7 KiB
Factor

! Copyright (C) 2009 Chris Double. All Rights Reserved.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors assocs base64 calendar calendar.format
calendar.parser checksums.hmac checksums.sha combinators http
http.client kernel make math.order namespaces sequences
sequences.extras sorting sorting.slots strings xml xml.traversal ;
IN: s3
SYMBOL: key-id
SYMBOL: secret-key
<PRIVATE
TUPLE: s3-request path mime-type date method headers bucket data ;
: hashtable>headers ( hashtable -- seq )
[
[ swap % ":" % % "\n" % ] "" make
] { } assoc>map [ <=> ] sort ;
: signature ( s3-request -- string )
[
{
[ method>> % "\n" % "\n" % ]
[ mime-type>> % "\n" % ]
[ date>> timestamp>rfc822 % "\n" % ]
[ headers>> [ hashtable>headers [ % ] each ] when* ]
[ bucket>> [ "/" % % ] when* ]
[ path>> % ]
} cleave
] "" make ;
: sign ( s3-request -- string )
[
"AWS " %
key-id get %
":" %
signature secret-key get sha1 hmac-bytes >base64 %
] "" make ;
: s3-url ( s3-request -- string )
[
"http://" %
dup bucket>> [ % "." % ] when*
"s3.amazonaws.com" %
path>> %
] "" make ;
: <s3-request> ( bucket path headers method -- request )
s3-request new
swap >>method
swap >>headers
swap >>path
swap >>bucket
now >>date ;
: sign-http-request ( s3-request http-request -- request )
over date>> timestamp>rfc822 "Date" set-header
swap sign "Authorization" set-header ;
: s3-get ( bucket path headers -- request data )
"GET" <s3-request> dup s3-url <get-request>
sign-http-request http-request ;
: s3-put ( data bucket path headers -- request data )
"PUT" <s3-request> dup s3-url swapd <put-request>
sign-http-request http-request ;
PRIVATE>
TUPLE: bucket name date ;
<PRIVATE
: (buckets) ( xml -- seq )
"Buckets" tag-named
"Bucket" tags-named [
[ "Name" tag-named children>string ]
[ "CreationDate" tag-named children>string ] bi bucket boa
] map ;
PRIVATE>
: buckets ( -- seq )
f "/" H{ } clone s3-get nip >string string>xml (buckets) ;
: sorted-buckets ( -- seq )
buckets { { date>> rfc3339>timestamp <=> } } sort-by ;
<PRIVATE
: bucket-url ( bucket -- string )
[ "http://" % % ".s3.amazonaws.com/" % ] "" make ;
PRIVATE>
TUPLE: key name last-modified size ;
<PRIVATE
: (keys) ( xml -- seq )
"Contents" tags-named [
[ "Key" tag-named children>string ]
[ "LastModified" tag-named children>string ]
[ "Size" tag-named children>string ]
tri key boa
] map ;
PRIVATE>
: keys ( bucket -- seq )
"/" H{ } clone s3-get
nip >string string>xml (keys) ;
: get-object ( bucket key -- response data )
"/" prepend H{ } clone s3-get ;
: create-bucket ( bucket -- )
"" swap "/" H{ } clone "PUT" <s3-request>
"application/octet-stream" >>mime-type
dup s3-url swapd <put-request>
0 "content-length" set-header
sign-http-request
http-request 2drop ;
: delete-bucket ( bucket -- )
"/" H{ } clone "DELETE" <s3-request>
dup s3-url <delete-request> sign-http-request http-request 2drop ;
: put-object ( data mime-type bucket key headers -- )
[ "/" prepend ] dip "PUT" <s3-request>
over >>mime-type
[ <post-data> swap >>data ] dip
dup s3-url swapd <put-request>
dup header>> pick headers>> assoc-union >>header
sign-http-request
http-request 2drop ;
: delete-object ( bucket key -- )
"/" prepend H{ } clone "DELETE" <s3-request>
dup s3-url <delete-request> sign-http-request http-request 2drop ;
: bucket>alist ( bucket -- alist )
dup keys
[ name>> get-object nip ] with map-zip ;