php - Generating ASP POST secure variables -


i want parse search result of 1 site builded on asp using php curl. no problems dom there problem post variables. , don't know how generate in php script.

asp generates 6 variables __ prefix.

__eventtarget __eventargument (has value base 64 encoded) __lastfocus __viewstate (has value) __viewstateencrypted __eventvalidation (has value base 64 encoded)

and tried copy post data browser of httpfox , data script works half of hour:

... define('postvars', '__eventtarget=&__eventargument=&__lastfocus=&__viewstate=1wi2mmtcr4dm7pou... ... url_setopt($ch, curlopt_postfields    ,postvars); ...

how generate __eventargument, __viewstate , __eventvalidation?

ps. parsing site http://nakolesah.ru/. parse result of form. id of form submit button "ctl00_contentplaceholder_btnsearchwheels". result page is: http://nakolesah.ru/wheels/podbor/porazmeru.aspx.

you cannot generate values. generated asp.net, encrypted server machine keys , have validity. way make work first send request main page, scrape html, values of hidden fields , after send post request using values have read.


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