Is it possible login into website programmatically with android? -
i trying login https://thingspeak.com/login website programmatically. have written blow android program not me login. pls tell me doing wrong.
//inside thread function list<namevaluepair> namevaluepairs = new arraylist<namevaluepair>(); namevaluepairs.add(new basicnamevaluepair("user id", "****")); namevaluepairs.add(new basicnamevaluepair("password", "*****")); namevaluepairs.add(new basicnamevaluepair("sign in", "sign in")); httppost.setentity(new urlencodedformentity(namevaluepairs)); httpresponse response = httpclient.execute(httppost); //after thread function getting called, below line oncreate method webview webview = (webview) findviewbyid(r.id.webview); webview.getsettings().setappcacheenabled(false); webview.getsettings().setjavascriptenabled(true); websettings websettings = webview.getsettings(); websettings.setjavascriptenabled(true); webview.loadurl("https://thingspeak.com/channels/42085"); i able load website tells channel not public because not logged in. pls me out. in advance.
username:niru
password:helloworld@123
the method searching called http basic authentication. in case target server using ssl gets difficult because need certificate.
such authentication working these steps:
- login form url.
- login form data.
- url authentication.
http request / response header.
public class httpurlconnectionexample { private list<string> cookies; private httpsurlconnection conn; private final string user_agent = "mozilla/5.0"; public static void main(string[] args) throws exception { string url = "https://accounts.google.com/serviceloginauth"; string gmail = "https://mail.google.com/mail/"; httpurlconnectionexample http = new httpurlconnectionexample(); // make sure cookies turn on cookiehandler.setdefault(new cookiemanager()); // 1. send "get" request, can extract form's data. string page = http.getpagecontent(url); string postparams = http.getformparams(page, "username@gmail.com", "password"); // 2. construct above post's content , send post request // authentication http.sendpost(url, postparams); // 3. success go gmail. string result = http.getpagecontent(gmail); system.out.println(result); } private void sendpost(string url, string postparams) throws exception { url obj = new url(url); conn = (httpsurlconnection) obj.openconnection(); // acts browser conn.setusecaches(false); conn.setrequestmethod("post"); conn.setrequestproperty("host", "accounts.google.com"); conn.setrequestproperty("user-agent", user_agent); conn.setrequestproperty("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); conn.setrequestproperty("accept-language", "en-us,en;q=0.5"); (string cookie : this.cookies) { conn.addrequestproperty("cookie", cookie.split(";", 1)[0]); } conn.setrequestproperty("connection", "keep-alive"); conn.setrequestproperty("referer", "https://accounts.google.com/serviceloginauth"); conn.setrequestproperty("content-type", "application/x-www-form-urlencoded"); conn.setrequestproperty("content-length", integer.tostring(postparams.length())); conn.setdooutput(true); conn.setdoinput(true); // send post request dataoutputstream wr = new dataoutputstream(conn.getoutputstream()); wr.writebytes(postparams); wr.flush(); wr.close(); int responsecode = conn.getresponsecode(); system.out.println("\nsending 'post' request url : " + url); system.out.println("post parameters : " + postparams); system.out.println("response code : " + responsecode); bufferedreader in = new bufferedreader(new inputstreamreader(conn.getinputstream())); string inputline; stringbuffer response = new stringbuffer(); while ((inputline = in.readline()) != null) { response.append(inputline); } in.close(); // system.out.println(response.tostring()); } private string getpagecontent(string url) throws exception { url obj = new url(url); conn = (httpsurlconnection) obj.openconnection(); // default conn.setrequestmethod("get"); conn.setusecaches(false); // act browser conn.setrequestproperty("user-agent", user_agent); conn.setrequestproperty("accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); conn.setrequestproperty("accept-language", "en-us,en;q=0.5"); if (cookies != null) { (string cookie : this.cookies) { conn.addrequestproperty("cookie", cookie.split(";", 1)[0]); } } int responsecode = conn.getresponsecode(); system.out.println("\nsending 'get' request url : " + url); system.out.println("response code : " + responsecode); bufferedreader in = new bufferedreader(new inputstreamreader(conn.getinputstream())); string inputline; stringbuffer response = new stringbuffer(); while ((inputline = in.readline()) != null) { response.append(inputline); } in.close(); // response cookies setcookies(conn.getheaderfields().get("set-cookie")); return response.tostring(); } public string getformparams(string html, string username, string password) throws unsupportedencodingexception { system.out.println("extracting form's data..."); document doc = jsoup.parse(html); // google form id element loginform = doc.getelementbyid("gaia_loginform"); elements inputelements = loginform.getelementsbytag("input"); list<string> paramlist = new arraylist<string>(); (element inputelement : inputelements) { string key = inputelement.attr("name"); string value = inputelement.attr("value"); if (key.equals("email")) value = username; else if (key.equals("passwd")) value = password; paramlist.add(key + "=" + urlencoder.encode(value, "utf-8")); } // build parameters list stringbuilder result = new stringbuilder(); (string param : paramlist) { if (result.length() == 0) { result.append(param); } else { result.append("&" + param); } } return result.tostring(); } public list<string> getcookies() { return cookies; } public void setcookies(list<string> cookies) { this.cookies = cookies; } }
important resource:
how automate login website – java example
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