fbapirequest.java

Sony Ericsson手机上的Facebook客户端全套代码

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   FbAPIRequest.java

package com.sonyericsson.fb.api.request;

import com.sonyericsson.fb.api.FbSessionHandler;
import com.sonyericsson.fb.api.InvalidStateException;
import com.sonyericsson.fb.api.data.FbFriendItemData;
import com.sonyericsson.fb.api.data.FbItemDataFactory;
import com.sonyericsson.fb.io.HttpMultipartRequest;
import com.sonyericsson.fb.utils.Logger;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Hashtable;
import java.util.Vector;
import javax.microedition.io.*;
import se.southend.drops.xml.XMLNode;
import se.southend.drops.xml.XMLParser;

// Referenced classes of package com.sonyericsson.fb.api.request:
//            IFbAPIRequest, IFbAPIRequestListener

abstract class FbAPIRequest
    implements IFbAPIRequest
{

    FbAPIRequest()
    {
        _statusCode = 1;
        _listener = null;
        _serverTime = -1L;
    }

    public void cancelRequest()
    {
        if(_listener != null)
            _listener.requestCancelled(this);
    }

    public int getRequestStatus()
    {
        return _statusCode;
    }

    public long getTimeStamp()
    {
        return _serverTime;
    }

    protected int processGetUsers(Vector users, Hashtable userTable)
    {
        StringBuffer query = new StringBuffer("SELECT uid,name,pic_square,pic,status FROM user WHERE uid IN (");
        for(int i = 0; i < users.size(); i++)
        {
            query.append(users.elementAt(i));
            if(i < users.size() - 1)
                query.append(",");
            else
                query.append(")");
        }

        Hashtable arguments = new Hashtable();
        arguments.put("method", "facebook.fql.query");
        arguments.put("query", query.toString());
        XMLNode root = new XMLNode();
        int statusCode = callMethod(arguments, root);
        if(statusCode == 0 && root != null && root.getName().equalsIgnoreCase("fql_query_response"))
        {
            for(int i = 0; i < root.getNumberOfChildren(); i++)
            {
                XMLNode child = root.getChild(i);
                FbFriendItemData user = (FbFriendItemData)FbItemDataFactory.getInstance().createItem(1, child);
                if(user != null)
                    userTable.put(user.getUid(), user);
            }

        }
        return statusCode;
    }

    protected int callMethod(Hashtable methodSpecificArguments, XMLNode root)
    {
        String serverUrl;
        HttpConnection connection;
        byte result[];
        serverUrl = "";
        try
        {
            serverUrl = prepareMethodArguments(methodSpecificArguments);
        }
        catch(InvalidStateException e)
        {
            return 2003;
        }
        connection = null;
        _serverTime = -1L;
        result = null;
        char c;
        connection = (HttpConnection)Connector.open(serverUrl, 3, true);
        HttpMultipartRequest multipart = new HttpMultipartRequest(connection);
        if(multipart.preparePostData(methodSpecificArguments))
        {
            result = multipart.send();
            try
            {
                _serverTime = connection.getHeaderFieldDate("Date", 0L) / 1000L;
            }
            catch(IOException dateException)
            {
                Logger.printErrorln("FbAPI.CallMethod(): Failed to get server timestamp! Using system time from phone\r\n");
                _serverTime = System.currentTimeMillis() / 1000L;
            }
            break MISSING_BLOCK_LABEL_167;
        }
        Logger.printErrorln("FbUploadPhotoRequest.callMethod(): Could not prepare multipart post.");
        c = '\u07D0';
        Exception e;
        if(connection != null)
            try
            {
                connection.close();
            }
            // Misplaced declaration of an exception variable
            catch(Exception e)
            {
                Logger.printErrorln("FbAPI.CallMethod(): Could not close stream: " + e.toString());
            }
        return c;
        IOException e;
        if(connection != null)
            try
            {
                connection.close();
            }
            // Misplaced declaration of an exception variable
            catch(IOException e)
            {
                Logger.printErrorln("FbAPI.CallMethod(): Could not close stream: " + e.toString());
            }
        break MISSING_BLOCK_LABEL_335;
        e;
        Logger.printErrorln("FbAPI.CallMethod(): Error when trying to start a new facebook session: " + e.toString());
        if(connection != null)
            try
            {
                connection.close();
            }
            // Misplaced declaration of an exception variable
            catch(IOException e)
            {
                Logger.printErrorln("FbAPI.CallMethod(): Could not close stream: " + e.toString());
            }
        break MISSING_BLOCK_LABEL_335;
        Exception exception;
        exception;
        if(connection != null)
            try
            {
                connection.close();
            }
            catch(IOException e)
            {
                Logger.printErrorln("FbAPI.CallMethod(): Could not close stream: " + e.toString());
            }
        throw exception;
        ByteArrayInputStream bais;
        XMLNode node;
        if(result == null)
            return 2002;
        bais = new ByteArrayInputStream(result);
        node = null;
        node = XMLParser.getInstance().open(bais);
        if(node != null)
            break MISSING_BLOCK_LABEL_382;
        Logger.printErrorln("FbAPI.CallMethod(): Error when trying to parse XML response from server");
        return 2001;
        XMLNode error = node.find("error_code");
        if(error != null)
        {
            return Integer.parseInt(error.getValue());
        } else
        {
            root.clone(node);
            return 0;
        }
        error;
        Logger.printErrorln("FbAPI.CallMethod(): Error when trying to parse XML response from server: " + error.toString());
        return 2001;
    }

    protected String prepareMethodArguments(Hashtable methodSpecificArguments)
        throws InvalidStateException
    {
        String sessionKey = FbSessionHandler.getInstance().getSessionKey();
        String sessionSecret = FbSessionHandler.getInstance().getSessionSecret();
        if(sessionSecret.length() == 0)
            sessionSecret = "4c2ba82712e7fc831c0ad4f9865922ae";
        methodSpecificArguments.put("session_key", sessionKey);
        String serverUrl = (String)methodSpecificArguments.get("Url");
        if(serverUrl != null)
        {
            methodSpecificArguments.remove("Url");
        } else
        {
            serverUrl = "http://api.facebook.com/restserver.php";
            methodSpecificArguments.put("api_key", "cab9b0c2b22b9628e5d4966412f1c1a1");
            methodSpecificArguments.put("v", "1.0");
            methodSpecificArguments.put("call_id", (new Long(System.currentTimeMillis())).toString());
        }
        String signature = FbSessionHandler.getInstance().calculateSignature(methodSpecificArguments, sessionSecret);
        methodSpecificArguments.put("sig", signature);
        return serverUrl;
    }

    public abstract void runRequest();

    protected int _statusCode;
    protected IFbAPIRequestListener _listener;
    protected long _serverTime;
    private static int _callID = 0;

}