On 30/04/2010, Mini Traktor <[email protected]> wrote: > Hi! > > I used Proxomitron to find out that the parameters were being posted when > clicking on the download button (the "SÖK" button): > > > __VIEWSTATE=%2FwEPDwUJMTMxNTMwMTE1D2QWAmYPZBYCAgMPZBYEAgEPZBYkAgMPPCsADQEMFCsABQ > > UPMDowLDA6MSwwOjIsMDozFCsAAhYEHgRUZXh0BQVCb2xhZx4ISW1hZ2VVcmwFLH4vUGFnZVRlbX > > BsYXRlcy9pbWFnZXMvRklfR3JlZW4tZG90LTEwcHgucG5nZBQrAAIWAh8ABQxJbnN5bnNwZXJzb2 > > 5kFCsAAhYCHwAFBURhdHVtZBQrAAIWAh8ABRhSZWdpc3RyZXJhZCBpbnN5bnNoYW5kZWxkZAIFDw > > 8WAh8ABRVURUxJQVNPTkVSQSBBQiAoUFVCTClkZAIHDxAPFgQfAAUORXhwb3J0ZXJhIGRhdGEeB0 > > NoZWNrZWRnZGRkZAIJDw8WAh8ABRRPcmdhbmlzYXRpb25zbnVtbWVyOmRkAgsPDxYCHwAFCzU1Nj > > EwMy00MjQ5ZGQCDQ8PFgIfAAUXUmVnaXN0cmVyaW5nIHVwcGjDtnJ0OiBkZAIPDxAPFgQfAmgfAA > > UPVmlzYSBww6Ugc2vDpHJtZGRkZAIRDw8WAh8ABQVWw6RsamRkAhMPEGQQFQUNVHJhbnNha3Rpb2 > > 5lchBBa3R1ZWxsdCBpbm5laGF2Ekhpc3Rvcmlza3QgaW5uZWhhdgVJbnN5bhlCZWZhdHRuaW5nc2 > > bDtnLDpG5kcmluZ2FyFQUNVHJhbnNha3Rpb25lcgdJbm5laGF2EUhpc3Rvcmlza3RJbm5laGF2BU > > luc3luGUJlZmF0dG5pbmdzZsO2csOkbmRyaW5nYXIUKwMFZ2dnZ2cWAQICZAIVDw8WBB8ABQZGci > > BvIG0eB1Zpc2libGVoZGQCFw8PFgQfAAUKMjAxMC0wNC0yOR8DaGRkAhkPDxYCHwAFBURhdHVtZG > > QCGw8PFgIfAAUKMjAwOS0wNC0zMGRkAh0PDxYCHwNoZGQCHw8PFgIfAQUofi9QYWdlVGVtcGxhdG > > VzL2ltYWdlcy9idXR0b25fc2VhcmNoLmdpZmRkAiEPDxYCHwAFDUbDtnJrbGFyaW5nYXJkZAIlDw > > 8WAh8ABQM1NTZkZAInDw8WAh8ABQVEYXR1bWRkAgIPDxYCHwAFEFRmbiAwOC03ODcgODEgNDRkZB > > gCBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WBAUUY3RsMDAkbWFpbiRvcHRFeHBvcn > > QFFGN0bDAwJG1haW4kb3B0U2NyZWVuBRRjdGwwMCRtYWluJG9wdFNjcmVlbgUXY3RsMDAkbWFpbi > > RJbWFnZUJ1dHRvbjEFFGN0bDAwJG1haW4kR3JpZFZpZXcxD2dkplQcCA16XUJKgpVj4bTiEdM5Yb > Q%3D > ctl00%24main%24ResultFormatGroup=optExport > ctl00%24main%24DropDownList1=HistorisktInnehav > ctl00%24main%24tomDate=2009-04-30 > ctl00%24main%24ImageButton1.x=13 > ctl00%24main%24ImageButton1.y=15 > > __EVENTVALIDATION=%2FwEWDwLizLyxCgLupZC3DALVvMvkCALOkpvRAwLuqaGYAgLghIvcCQL%2Fl4qFBQLYqZBBAoqhrtUDAqGXz60BAret0%2FoPArax8coKAoX27r0IAtmB4skKAv2novYCatM9TQQ4OL1ojfRmfYIduKKQ%2Fwc%3D > > However, posting the same parameters from HttpClient gives the following > response: > > "<html><head><title>Object moved</title></head><body> > <h2>Object moved to <a > href="/PageTemplates/errorNoSess.aspx?aspxerrorpath=/SearchPage.aspx">here</a>.</h2> > </body></html>" > > What can be the problem? I suppose it lies with the __VIEWSTATE and > __EVENTVALIDATION parameters as the values for these seems a bit... strange. >
These values are likely to vary between requests, so you will have to extract them from the previous response. > Best regards, > Mini > > > > ________________________________ > From: Christophe Marchand <[email protected]> > To: HttpClient User Discussion <[email protected]> > Sent: Fri, April 30, 2010 1:47:12 PM > Subject: Re: Download a file by going to website and submitting a form > > > Put a local proxy that log requests and watch out the parameters that are > submitted to server. > Then you will just have to change your parameters values as you need. > > Under windows (sometime...), I use Proxomitron > > Regards, > Christophe > > Mini Traktor wrote: > > Hi! > > > > I need to download a file using HttpClient. There is no URL that leads > directly to the file but it can be downloaded manually by following these > steps: > > > > 1. Go to this website: > > > http://insynsok.fi.se/SearchPage.aspx?bolagid=556&fromdate=2009-04-30&tomdate=2009-04-30&reporttype=2&culture=sv-SE > > 2. Select the radio button "Exportera data" in the top-right corner > > 3. Click the button "SÖK" > > > > I suppose that I should do some kind of HTTP POST, but I don't know which > parameters to post. I have tried many different combinations, such as the one > below. Do anyone know what I should do to download the file? > > DefaultHttpClient httpclient = HttpPost httpost = List > <NameValuePair> nvps = nvps.add( > > nvps.add(publicstaticvoidmain(String[] args) throwsException > {newDefaultHttpClient();newHttpPost("http://insynsok.fi.se/SearchPage.aspx?bolagid=556&fromdate=2009-04-30&tomdate=2009-04-30&reporttype=2&culture=sv-SE";);newArrayList > <NameValuePair>();newBasicNameValuePair("ctl00$main$ResultFormatGroup", > "optExport"));newBasicNameValuePair("__EVENTTARGET", > "ctl00$main$optExport")); // nvps.add(new > BasicNameValuePair("__EVENTTARGET", "optExport")); > > // nvps.add(new BasicNameValuePair("__LASTFOCUS", "")) > > // nvps.add(new BasicNameValuePair("__EVENTARGUMENT", "")); > > // nvps.add(new BasicNameValuePair("__VIEWSTATE", > > > > "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 > > > WdlVGVtcGxhdGVzL2ltYWdlcy9idXR0b25fc2VhcmNoLmdpZmRkAiEPDxYCHwAFDUbDtnJrbGFyaW5nYXJkZAIlDw8WAh8ABQM1NTZkZAInDw8WAh8ABQVEYXR1bWRkAgIPDxYCHwAFEFRmbiAwOC03ODcgODEgNDRkZBgCBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WBAUUY3RsMDAkbWFpbiRvcHRFeHBvcnQFFGN0bDAwJG1haW4kb3B0RXhwb3J0BRRjdGwwMCRtYWluJG9wdFNjcmVlbgUXY3RsMDAkbWFpbiRJbWFnZUJ1dHRvbjEFFGN0bDAwJG1haW4kR3JpZFZpZXcxD2dkklF4trRBFw6yMlWuT6mgCtqFIVs=")); > > // nvps.add(new BasicNameValuePair("ctl00$main$ResultFormatGroup", > "optExport")); > > // nvps.add(new BasicNameValuePair("ctl00$main$DropDownList1", > "HistorisktInnehav")); > > // nvps.add(new BasicNameValuePair("ctl00$main$tomDate", "2009-04-30")); > > // nvps.add(new BasicNameValuePair("__EVENTVALIDATION", > "/wEWDwLHzJQpAu6lkLcMAtW8y+QIAs6Sm9EDAu6poZgCAuCEi9wJAv+XioUFAtipkEECiqGu1QMCoZfPrQECt63T+g8CtrHxygoChfbuvQgC2YHiyQoC/aei9gKbrpw0ozpPrgzd2imI6M4O/LNqOw==")); > > // nvps.add(new BasicNameValuePair("ctl00$main$ImageButton1", "true")); > httpost.setEntity( > > HttpResponse response = httpclient.execute(httpost); > > HttpEntity entity = response.getEntity(); File file = InputStream > instream = entity.getContent(); > > OutputStream outstream = outstream.write(tmp, 0, l); > > } > > outstream.flush(); > > instream.close(); > > outstream.close(); > > entity.consumeContent(); > > httpclient.getConnectionManager().shutdown(); > }newUrlEncodedFormEntity(nvps, > HTTP.UTF_8));newFile("somefile.zip");newFileOutputStream(file); byte[] tmp > = newbyte[4096]; intl; while((l = instream.read(tmp)) != -1) { > > > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: mailto:[email protected] > For additional commands, e-mail: mailto:[email protected] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
