1 ! Copyright (C) 2003, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors kernel combinators math namespaces make assocs
4 sequences splitting sorting sets strings vectors hashtables
5 quotations arrays byte-arrays math.parser calendar
6 calendar.format present urls fry
7 io io.encodings io.encodings.iana io.encodings.binary
8 io.encodings.8-bit io.crlf ascii
13 : (read-header) ( -- alist )
14 [ read-crlf dup f like ] [ parse-header-line ] produce nip ;
16 : collect-headers ( assoc -- assoc' )
17 H{ } clone [ '[ _ push-at ] assoc-each ] keep ;
19 : process-header ( alist -- assoc )
20 f swap [ [ swap or dup ] dip swap ] assoc-map nip
21 collect-headers [ "; " join ] assoc-map
24 : read-header ( -- assoc )
25 (read-header) process-header ;
27 : header-value>string ( value -- string )
29 { [ dup timestamp? ] [ timestamp>http-string ] }
30 { [ dup array? ] [ [ header-value>string ] map "; " join ] }
34 : check-header-string ( str -- str )
35 #! http://en.wikipedia.org/wiki/HTTP_Header_Injection
36 dup "\r\n" intersects?
37 [ "Header injection attack" throw ] when ;
39 : write-header ( assoc -- )
41 [ check-header-string write ": " write ]
42 [ header-value>string check-header-string write crlf ] bi*
45 TUPLE: cookie name value version comment path domain expires max-age http-only secure ;
47 : <cookie> ( value name -- cookie )
52 : parse-set-cookie ( string -- seq )
58 { "version" [ >>version ] }
59 { "comment" [ >>comment ] }
60 { "expires" [ cookie-string>timestamp >>expires ] }
61 { "max-age" [ string>number seconds >>max-age ] }
62 { "domain" [ >>domain ] }
64 { "httponly" [ drop t >>http-only ] }
65 { "secure" [ drop t >>secure ] }
66 [ <cookie> dup , nip ]
72 : parse-cookie ( string -- seq )
78 { "$version" [ >>version ] }
79 { "$domain" [ >>domain ] }
80 { "$path" [ >>path ] }
81 [ <cookie> dup , nip ]
87 : check-cookie-string ( string -- string' )
88 dup "=;'\"\r\n" intersects?
89 [ "Bad cookie name or value" throw ] when ;
91 : unparse-cookie-value ( key value -- )
94 { t [ check-cookie-string , ] }
97 { [ dup timestamp? ] [ timestamp>cookie-string ] }
98 { [ dup duration? ] [ duration>seconds number>string ] }
99 { [ dup real? ] [ number>string ] }
102 [ check-cookie-string ] bi@ "=" glue ,
106 : check-cookie-value ( string -- string )
107 [ "Cookie value must not be f" throw ] unless* ;
109 : (unparse-cookie) ( cookie -- strings )
111 dup name>> check-cookie-string >lower
112 over value>> check-cookie-value unparse-cookie-value
113 "$path" over path>> unparse-cookie-value
114 "$domain" over domain>> unparse-cookie-value
118 : unparse-cookie ( cookies -- string )
119 [ (unparse-cookie) ] map concat "; " join ;
121 : unparse-set-cookie ( cookie -- string )
123 dup name>> check-cookie-string >lower
124 over value>> check-cookie-value unparse-cookie-value
125 "path" over path>> unparse-cookie-value
126 "domain" over domain>> unparse-cookie-value
127 "expires" over expires>> unparse-cookie-value
128 "max-age" over max-age>> unparse-cookie-value
129 "httponly" over http-only>> unparse-cookie-value
130 "secure" over secure>> unparse-cookie-value
132 ] { } make "; " join ;
142 : set-header ( request/response value key -- request/response )
143 pick header>> set-at ;
145 : set-basic-auth ( request username password -- request )
146 ":" glue >base64 "Basic " prepend "Authorization" set-header ;
148 : <request> ( -- request )
156 "close" "connection" set-header
157 "Factor http.client" "user-agent" set-header ;
159 : header ( request/response key -- value )
173 : <response> ( -- response )
177 "close" "connection" set-header
178 now timestamp>http-string "date" set-header
179 "Factor http.server" "server" set-header
180 latin1 >>content-charset
181 V{ } clone >>cookies ;
185 [ clone ] change-header
186 [ clone ] change-cookies ;
188 : get-cookie ( request/response name -- cookie/f )
189 [ cookies>> ] dip '[ [ _ ] dip name>> = ] find nip ;
191 : delete-cookie ( request/response name -- )
192 over cookies>> [ get-cookie ] dip delete ;
194 : put-cookie ( request/response cookie -- request/response )
195 [ name>> dupd get-cookie [ dupd delete-cookie ] when* ] keep
196 over cookies>> push ;
204 : <raw-response> ( -- response )
208 TUPLE: post-data data params content-type content-encoding ;
210 : <post-data> ( content-type -- post-data )
212 swap >>content-type ;
214 : parse-content-type-attributes ( string -- attributes )
217 "\"" ?head drop "\"" ?tail drop
220 : parse-content-type ( content-type -- type encoding )
222 parse-content-type-attributes "charset" swap at name>encoding
223 [ dup "text/" head? latin1 binary ? ] unless* ;