1 ! Copyright (C) 2003, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays ascii assocs base64 calendar calendar.format
4 calendar.parser combinators fry hashtables http.parsers io io.crlf
5 io.encodings.iana io.encodings.utf8 kernel make math math.parser
6 mime.types present sequences sets sorting splitting urls ;
9 CONSTANT: max-redirects 10
11 : (read-header) ( -- alist )
12 [ read-?crlf dup f like ] [ parse-header-line ] produce nip ;
14 : collect-headers ( assoc -- assoc' )
15 H{ } clone [ '[ _ push-at ] assoc-each ] keep ;
17 : process-header ( alist -- assoc )
18 f swap [ [ swap or dup ] dip swap ] assoc-map nip
19 collect-headers [ "; " join ] assoc-map
22 : read-header ( -- assoc )
23 (read-header) process-header ;
25 : header-value>string ( value -- string )
27 { [ dup timestamp? ] [ timestamp>http-string ] }
28 { [ dup array? ] [ [ header-value>string ] map "; " join ] }
32 : check-header-string ( str -- str )
33 ! http://en.wikipedia.org/wiki/HTTP_Header_Injection
34 dup "\r\n" intersects?
35 [ "Header injection attack" throw ] when ;
37 : write-header ( assoc -- )
39 [ check-header-string write ": " write ]
40 [ header-value>string check-header-string write crlf ] bi*
43 TUPLE: cookie name value version comment path domain expires max-age http-only secure ;
45 : <cookie> ( value name -- cookie )
50 : parse-set-cookie ( string -- seq )
55 over >lower [ swapd ] dip {
56 { "version" [ >>version ] }
57 { "comment" [ >>comment ] }
58 { "expires" [ [ cookie-string>timestamp >>expires ] unless-empty ] }
59 { "max-age" [ string>number seconds >>max-age ] }
60 { "domain" [ >>domain ] }
62 { "httponly" [ drop t >>http-only ] }
63 { "secure" [ drop t >>secure ] }
64 [ drop rot <cookie> dup , ]
71 : parse-cookie ( string -- seq )
77 { "$version" [ >>version ] }
78 { "$domain" [ >>domain ] }
79 { "$path" [ >>path ] }
80 [ <cookie> dup , nip ]
86 : check-cookie-string ( string -- string' )
87 dup "=;'\"\r\n" intersects?
88 [ "Bad cookie name or value" throw ] when ;
90 : unparse-cookie-value ( key value -- )
93 { t [ check-cookie-string , ] }
96 { [ dup timestamp? ] [ timestamp>cookie-string ] }
97 { [ dup duration? ] [ duration>seconds number>string ] }
98 { [ dup real? ] [ number>string ] }
101 [ check-cookie-string ] bi@ "=" glue ,
105 : check-cookie-value ( string -- string )
106 [ "Cookie value must not be f" throw ] unless* ;
108 : (unparse-cookie) ( cookie -- strings )
110 dup name>> check-cookie-string
111 over value>> check-cookie-value unparse-cookie-value
112 "$path" over path>> unparse-cookie-value
113 "$domain" over domain>> unparse-cookie-value
117 : unparse-cookie ( cookies -- string )
118 [ (unparse-cookie) ] map concat "; " join ;
120 : unparse-set-cookie ( cookie -- string )
122 dup name>> check-cookie-string
123 over value>> check-cookie-value unparse-cookie-value
124 "path" over path>> unparse-cookie-value
125 "domain" over domain>> unparse-cookie-value
126 "expires" over expires>> unparse-cookie-value
127 "max-age" over max-age>> unparse-cookie-value
128 "httponly" over http-only>> unparse-cookie-value
129 "secure" over secure>> unparse-cookie-value
131 ] { } make "; " join ;
143 : set-header ( request/response value key -- request/response )
144 pick header>> set-at ;
146 : basic-auth ( username password -- str )
147 ":" glue >base64 "Basic " "" prepend-as ;
149 : set-basic-auth ( request username password -- request )
150 basic-auth "Authorization" set-header ;
152 : set-proxy-basic-auth ( request username password -- request )
153 basic-auth "Proxy-Authorization" set-header ;
155 : <request> ( -- request )
164 "close" "connection" set-header
165 "Factor http.client" "user-agent" set-header
166 max-redirects >>redirects ;
168 : header ( request/response key -- value )
183 : <response> ( -- response )
187 "close" "connection" set-header
188 now timestamp>http-string "date" set-header
189 "Factor http.server" "server" set-header
190 utf8 >>content-encoding
191 V{ } clone >>cookies ;
195 [ clone ] change-header
196 [ clone ] change-cookies ;
198 : get-cookie ( request/response name -- cookie/f )
199 [ cookies>> ] dip '[ [ _ ] dip name>> = ] find nip ;
201 : delete-cookie ( request/response name -- )
202 over cookies>> [ get-cookie ] dip remove! drop ;
204 : put-cookie ( request/response cookie -- request/response )
205 [ name>> dupd get-cookie [ dupd delete-cookie ] when* ] keep
206 over cookies>> push ;
214 : <raw-response> ( -- response )
218 TUPLE: post-data data params content-type content-encoding ;
220 : <post-data> ( content-type -- post-data )
222 swap >>content-type ;
224 : parse-content-type-attributes ( string -- attributes )
227 "\"" ?head drop "\"" ?tail drop
230 : parse-content-type ( content-type -- type encoding )
232 parse-content-type-attributes "charset" of
233 [ dup mime-type-encoding encoding>name ] unless* ;