1 ! Copyright (C) 2005, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors assocs kernel math math.parser namespaces make
4 sequences io io.sockets io.streams.string io.files io.timeouts
5 strings splitting calendar continuations accessors vectors
6 math.order hashtables byte-arrays prettyprint destructors
13 fry debugger summary ascii urls urls.encoding present
17 : write-request-line ( request -- request )
20 [ url>> relative-url present write bl ]
21 [ "HTTP/" write version>> write crlf ]
24 : url-host ( url -- string )
25 [ host>> ] [ port>> ] bi dup "http" protocol-port =
26 [ drop ] [ ":" swap number>string 3append ] if ;
28 : write-request-header ( request -- request )
29 dup header>> >hashtable
30 over url>> host>> [ over url>> url-host "host" pick set-at ] when
32 [ raw>> length "content-length" pick set-at ]
33 [ content-type>> "content-type" pick set-at ]
36 over cookies>> [ unparse-cookie "cookie" pick set-at ] unless-empty
39 GENERIC: >post-data ( object -- post-data )
41 M: post-data >post-data ;
43 M: string >post-data "application/octet-stream" <post-data> ;
45 M: byte-array >post-data "application/octet-stream" <post-data> ;
47 M: assoc >post-data assoc>query "application/x-www-form-urlencoded" <post-data> ;
51 : unparse-post-data ( request -- request )
52 [ >post-data ] change-post-data ;
54 : write-post-data ( request -- request )
55 dup method>> [ "POST" = ] [ "PUT" = ] bi or
56 [ dup post-data>> [ raw>> write ] when* ] when ;
58 : write-request ( request -- )
66 : read-response-line ( response -- response )
67 read-crlf parse-response-line first3
68 [ >>version ] [ >>code ] [ >>message ] tri* ;
70 : read-response-header ( response -- response )
72 dup "set-cookie" header parse-set-cookie >>cookies
73 dup "content-type" header [
76 [ >>content-charset ] bi*
79 : read-response ( -- response )
82 read-response-header ;
86 ERROR: too-many-redirects ;
88 M: too-many-redirects summary
90 [ "Redirection limit of " % max-redirects # " exceeded" % ] "" make ;
92 DEFER: with-http-request
98 : redirect-url ( request url -- request )
99 '[ _ >url derive-url ensure-port ] change-url ;
101 : redirect? ( response -- ? )
102 code>> 300 399 between? ;
104 : do-redirect ( quot: ( chunk -- ) response -- response )
106 redirects get max-redirects < [
108 swap "location" header redirect-url
109 "GET" >>method swap with-http-request
110 ] [ too-many-redirects ] if ; inline recursive
112 : read-chunk-size ( -- n )
113 read-crlf ";" split1 drop [ blank? ] trim-right
114 hex> [ "Bad chunk size" throw ] unless* ;
116 : read-chunked ( quot: ( chunk -- ) -- )
117 read-chunk-size dup zero?
119 read [ swap call ] [ drop ] 2bi
120 read-crlf B{ } assert= read-chunked
121 ] if ; inline recursive
123 : read-unchunked ( quot: ( chunk -- ) -- )
124 8192 read-partial dup [
125 [ swap call ] [ drop read-unchunked ] 2bi
126 ] [ 2drop ] if ; inline recursive
128 : read-response-body ( quot response -- )
130 "transfer-encoding" header "chunked" =
131 [ read-chunked ] [ read-unchunked ] if ; inline
133 : <request-socket> ( -- stream )
134 request get url>> url-addr ascii <client> drop
135 1 minutes over set-timeout ;
139 : with-http-request ( request quot: ( chunk -- ) -- response )
145 [ request get write-request ]
149 read-response dup redirect? [ t ] [
151 [ read-response-body ]
158 [ do-redirect ] [ nip ] if
159 ] with-variable ; inline recursive
161 : success? ( code -- ? ) 200 299 between? ;
163 ERROR: download-failed response data ;
165 M: download-failed error.
166 "HTTP request failed:" print nl
167 [ response>> . ] [ data>> . ] bi ;
169 : check-response* ( response data -- response data )
170 over code>> success? [ download-failed ] unless ;
172 : check-response ( response -- response )
173 f check-response* drop ;
175 : http-request ( request -- response data )
176 [ [ % ] with-http-request ] B{ } make
177 over content-charset>> decode check-response* ;
179 : <client-request> ( url -- request )
180 <request> swap >url ensure-port >>url ;
182 : <client-data-request> ( data url -- request )
183 <client-request> swap >>post-data ;
185 : <get-request> ( url -- request )
186 <client-request> "GET" >>method ;
188 : http-get ( url -- response data )
189 <get-request> http-request ;
191 : with-http-get ( url quot -- response )
192 [ <get-request> ] dip with-http-request check-response ; inline
194 : <delete-request> ( url -- request )
195 <client-request> "DELETE" >>method ;
197 : http-delete ( url -- response data )
198 <delete-request> http-request ;
200 : <trace-request> ( url -- request )
201 <client-request> "TRACE" >>method ;
203 : http-trace ( url -- response data )
204 <trace-request> http-request ;
206 : download-name ( url -- name )
207 present file-name "?" split1 drop "/" ?tail drop ;
209 : download-to ( url file -- )
210 binary [ [ write ] with-http-get drop ] with-file-writer ;
212 : download ( url -- )
213 dup download-name download-to ;
215 : <post-request> ( post-data url -- request )
216 <client-data-request> "POST" >>method ;
218 : http-post ( post-data url -- response data )
219 <post-request> http-request ;
221 : <put-request> ( data url -- request )
222 <client-data-request> "PUT" >>method ;
224 : http-put ( data url -- response data )
225 <put-request> http-request ;