I'm making fully RFC6265 compliant cookie support for net/url and http. https://github.com/Kalimehtar/client-cookies
It is still pre-alpha, but, I hope, will be ready in 2-3 weeks. Среда, 8 января 2014, 10:33 -07:00 от Matthew Flatt <mfl...@cs.utah.edu>: >In case no one offers a better library, enclosed is a small one that I >recently created for a web-scraping task. > >Start a simulation of a browser with `make-connection`, use `goto!` to >follow a link to a relative URL (following redirects), and use `back!` >to go back. The `goto!` function returns two values: the headers as a >string and the page content as bytes. > >Beware: My application accessed a single site, so this library doesn't >attempt to do the right thing with cookies across sites. > >At Wed, 08 Jan 2014 03:48:44 -0800, Duncan Bayne wrote: >> Hi All, >> >> I'm trying to re-write some Common Lisp web-scraping code in Racket. >> >> In Common Lisp, I'm POSTing a login request, and storing the cookie-jar >> for subsequent GETs: >> >> (defun login (username password) >> "Logs in to www.example.com . Returns a cookie-jar containing >> authentication details." >> (let ((cookie-jar (make-instance 'drakma:cookie-jar))) >> (drakma:http-request " http://www.example.com/login"; >> :method :post >> :parameters `(("username" . ,username) ("password" . >> ,password)) >> :cookie-jar cookie-jar) >> cookie-jar)) >> >> ; snip >> >> (defun get-page (page-num cookie-jar) >> "Downloads a potentially invalid HTML page containing data to scrape. >> Returns a string containing the HTML." >> (let ((url (concatenate 'string " http://www.example.com/data/"; >> (write-to-string page-num)))) >> (let ((body (drakma:http-request url :cookie-jar cookie-jar))) >> (if (search "No data found." body) >> nil >> body)))) >> >> However, I can't find an equivalent in Racket. The latest HTTP >> library[1] makes no mention of cookies at all, and AFAICT the cookie >> library[2] seems more about correctly serializing and deserializing >> them. >> >> Can anyone suggest a way of re-writing the above CL in Racket without >> having to implement a bunch of header-parsing stuff? >> >> TIA for any help ... >> >> [1] >> >> https://github.com/plt/racket/blob/master/racket/collects/net/http-client.rkt >> [2] http://docs.racket-lang.org/net/cookie.html >> >> -- >> Duncan Bayne >> ph: +61 420817082 | web: http://duncan-bayne.github.com/ | skype: >> duncan_bayne >> >> I usually check my mail every 24 - 48 hours. If there's something >> urgent going on, please send me an SMS or call me. >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users >____________________ > Racket Users list: > http://lists.racket-lang.org/users > -- Roman Klochkov
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