Script Library: 1238 scripts


REBOL [ Title: "Simple HTTP POST" Date: 30-Jun-1999 File: %http-post.r Author: "Martin Johannesson" Purpose: { This script sends a "form" to a webserver using the POST method. The included example translates a string in English to German by posting the data to AltaVista's translation web page and then parsing the reply. } Email: %d95-mjo--nada--kth--se library: [ level: 'advanced platform: none type: 'tool domain: [web other-net] tested-under: none support: none license: none see-also: none ] ] url-encode: func [ {URL-encode a string} data "String to encode" /local new-data ][ new-data: make string! "" normal-char: charset [ #"A" - #"Z" #"a" - #"z" #"@" #"." #"*" #"-" #"_" #"0" - #"9" ] if not string? data [return new-data] forall data [ append new-data either find normal-char first data [ first data ][ rejoin ["%" to-string skip tail (to-hex to-integer first data) -2] ] ] new-data ] http-post-form: func [ {Post a form to a web server} url "The URL to post to" data [block!] "A block of name/value pairs to represent the form" /local encoded-data port-spec HTTP-Post-Header http-request buffer tmp-buffer ][ port-spec: make port! [ scheme: 'tcp port-id: 80 timeout: 0:10 ] net-utils/url-parser/parse-url port-spec url encoded-data: make string! "" foreach [name value] data [ append encoded-data rejoin [ url-encode name "=" url-encode value "&" ] ] remove back tail encoded-data HTTP-Post-Header: make object! [ Accept: "*/*" User-Agent: reform ["REBOL" system/version] Host: port-spec/host Content-Type: "application/x-www-form-urlencoded" Content-Length: length? encoded-data ] http-request: rejoin [ "POST /" either found? port-spec/path [port-spec/path][""] either found? port-spec/target [port-spec/target][""] " HTTP/1.0^/" net-utils/export HTTP-Post-Header "^/" encoded-data ] http-port: open/lines [ scheme: 'tcp port-id: port-spec/port-id timeout: port-spec/timeout host: port-spec/host user: port-spec/user pass: port-spec/pass ] insert http-port http-request buffer: make string! 10000 tmp-buffer: reform ["HTTP-Response:" pick http-port 1] while [not none? tmp-buffer] [ append buffer rejoin [tmp-buffer "^/"] tmp-buffer: pick http-port 1 ] close http-port HTTP-Header: make object! [ HTTP-Response: Date: Server: Last-Modified: none Accept-Ranges: Content-Encoding: Content-Type: none Content-Length: Location: Expires: Referer: Connection: none ] parse-header HTTP-Header buffer ] english-to-german: func [ {Translates a string in English to German, using} english-text "String in english" ][ not-lt-gt: complement charset [#"<" #">"] tag-rule: ["<" some not-lt-gt ">"] tmp: http-post-form reduce [ "doit" "done" "urltext" english-text "lp" "en_de" ] if none? find tmp/HTTP-Response "200" [return join "Error: " tmp/HTTP-Response] either parse tmp/content [ thru "Auf Deutsch:" to "<font" thru ">" copy trans to "<" to end ][ return trans ][ return "Error: Unable to parse Babelfish HTML" ] ] print english-to-german "hello, how are you?"
halt ;; to terminate script if DO'ne from webpage
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