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package org.fox.ttcomics2.sync;
import android.os.AsyncTask;
import android.util.Log;
import org.fox.ttcomics2.CommonActivity;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class SyncClient {
public interface PositionReceivedListener {
void onPositionReceived(int position);
}
public interface DataClearedListener {
void onDataCleared(boolean result);
}
private class HttpTask extends AsyncTask<String, Integer, Boolean> {
protected String m_response = null;
protected int m_responseCode = -1;
@Override
protected Boolean doInBackground(String... params) {
try {
HttpURLConnection conn = doSyncHttpRequest(params);
if (conn != null) {
m_responseCode = conn.getResponseCode();
if (m_responseCode == HttpURLConnection.HTTP_OK) {
m_response = readHttpResponse(conn);
//Log.d(TAG, "<<< " + m_response);
if (m_response != null && m_response.indexOf("ERROR") == -1) {
return true;
} else {
return false;
}
} else {
Log.d(TAG, "HTTP error, code: " + m_responseCode);
}
conn.disconnect();
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}
private final String TAG = this.getClass().getSimpleName();
private static final String SYNC_ENDPOINT = "http://tt-rss.org/tcrsync/";
private String m_owner = null;
public void setOwner(String owner) {
m_owner = CommonActivity.sha1(owner);
}
public int getPosition(String hash, final PositionReceivedListener listener) {
if (m_owner != null) {
Log.d(TAG, "Requesting sync data...");
HttpTask task = new HttpTask() {
@Override
protected void onPostExecute(Boolean result) {
if (result) {
try {
listener.onPositionReceived(Integer.valueOf(m_response));
} catch (NumberFormatException e) {
e.printStackTrace();
}
} else {
listener.onPositionReceived(-1);
}
}
};
task.execute("get", hash);
}
return -1;
}
public void setPosition(String hash, int position) {
if (m_owner != null) {
Log.d(TAG, "Uploading sync data...");
HttpTask task = new HttpTask();
task.execute("set", hash, String.valueOf(position));
}
}
public void clearData(final DataClearedListener listener) {
if (m_owner != null) {
Log.d(TAG, "Clearing sync data...");
HttpTask task = new HttpTask() {
@Override
protected void onPostExecute(Boolean result) {
if (listener != null) listener.onDataCleared(result);
}
};
task.execute("clear");
}
}
public void clearData(String hash, final DataClearedListener listener) {
if (m_owner != null) {
Log.d(TAG, "Clearing sync data: " + hash);
HttpTask task = new HttpTask() {
@Override
protected void onPostExecute(Boolean result) {
if (listener != null) listener.onDataCleared(result);
}
};
task.execute("clear", hash);
}
}
public HttpURLConnection doSyncHttpRequest(String ... params) {
String requestStr = null;
String op = params[0];
if (op.equals("set")) {
requestStr = String.format("op=set&owner=%1$s&hash=%2$s&position=%3$s", m_owner, params[1], params[2]);
} else if (op.equals("get")) {
requestStr = String.format("op=get&owner=%1$s&hash=%2$s", m_owner, params[1]);
} else if (op.equals("clear")) {
if (params.length > 1) {
requestStr = String.format("op=clear&owner=%1$s&hash=%2$s", m_owner, params[1]);
} else {
requestStr = String.format("op=clear&owner=%1$s", m_owner);
}
}
requestStr += "&version=2";
Log.d(TAG, requestStr);
if (requestStr == null) return null;
try {
byte[] postData = requestStr.getBytes("UTF-8");
URL url = new URL(SYNC_ENDPOINT);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
OutputStream out = conn.getOutputStream();
out.write(postData);
out.close();
return conn;
} catch (Exception e) {
}
return null;
}
public String readHttpResponse(HttpURLConnection conn) {
try {
StringBuffer response = new StringBuffer();
InputStreamReader in = new InputStreamReader(conn.getInputStream(), "UTF-8");
char[] buf = new char[1024];
int read = 0;
while ((read = in.read(buf)) >= 0) {
response.append(buf, 0, read);
}
//Log.d(TAG, "<<< " + response);
return response.toString();
} catch (IOException e) {
return null;
}
}
public boolean hasOwner() {
return m_owner != null;
}
}
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