I think I found why this protocol error occurs. It seems the problem are indeed the redirects, but only when there are redirects that go from HTTPS to HTTP. In fact I tried also that same code with url https://www.google.com, and it gave the same error (it was redirecting to http://www.google.com).
To disable the automatic redirect following I used: HttpsURLConnection.setFollowRedirects(false); // for HTTPS requests HttpURLConnection.setFollowRedirects(false); // for HTTP requests Now I have to find out how to read the http/s response headers from the URLConnection, to get the "location" field. (if someone already knows that.....telll meeee :D:D). Ciao! Yuvi On Tue, Jan 26, 2010 at 9:52 PM, Jason Proctor < [email protected]> wrote: > well this does seem to point to a long initialisation period for the Apache > library. i don't have anything informed to suggest on the protocol error - > maybe the Apache library supports more SSL protocols than the regular Java > network library? dunno. checking versions etc couldn't hurt. > > there's a bunch of redirects going on with that https://mip.sunrise.chURL, > btw. something somewhere might be falling over that. > > hth > > > Yeah probably it has something to do with all the initialization stuff...I >> just tried *not* using the Apache HttpClient, with the following code: >> >> String myHttpsUrl = "<https://mip.sunrise.ch/>https://mip.sunrise.ch";; >> >> URL url = new URL(myHttpsUrl); >> URLConnection urlConnection = url.openConnection(); >> >> BufferedReader br = new BufferedReader(new >> InputStreamReader(ucon.getInputStream())); >> String line; >> StringBuilder htmlContent = new StringBuilder(); >> while ((line = br.readLine()) != null) { >> htmlContent.append(line); >> } >> >> (I'm reading the whole content just to make sure my request has been >> executed and fetched..). >> >> Anyway....it seems much faster!! (first request around 2 seconds, compared >> to the HttpClient's 6, 10 or 20 seconds). >> >> However there is a problem: with the current https url it actually doesn't >> work (it worked for other https addresses). I get back the following error >> (with the url "<https://mip.sunrise.ch/>https://mip.sunrise.ch";): >> >> >> java.io.IOException: SSL handshake failure: Failure in SSL library, >> usually a protocol error >> error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol >> (external/openssl/ssl/s23_clnt.c:585 0xaf589f78:0x00000000) >> at >> org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.nativeconnect(Native >> Method) >> at >> org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:308) >> at >> org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.getSecureSocket(HttpConnection.java:173) >> at >> org.apache.harmony.luni.internal.net.www.protocol.https.HttpsURLConnection$HttpsEngine.connect(HttpsURLConnection.java:408) >> at >> org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.sendRequest(HttpURLConnection.java:1227) >> at >> org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.doRequestInternal(HttpURLConnection.java:1554) >> at >> org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.doRequest(HttpURLConnection.java:1547) >> at >> org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1055) >> at >> org.apache.harmony.luni.internal.net.www.protocol.https.HttpsURLConnection.getInputStream(HttpsURLConnection.java:257) >> >> It seems like an ssl version error...mmmm.... >> Maybe I have to specify explicitly this version somewhere? Or maybe some >> certificates? :S >> >> If anyone has an idea please let me know :) >> >> >> Thanks everyone! >> Yuvi >> >> .... > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
