fb wall posting

[veradismail]

Hi,

Is there an way to post on wall without opening the dialog window and i have to add user prompt, attachment, message from my coding rather than asking the user to do so. When the user clicks post to wall button, it should respond back with only success or failure status(no dialog should open),

When i try to add attachment, the dialog shows error. I tried like one mentioned in previous thread, but with no result.

String imgURL = "www.google.co.in/images/srpr/nav_logo13.png";
String linkURL = "www.google.com";
String caption = "My caption";
String description = "My description";

Bundle bundle = new Bundle();
bundle.putString("userMessagePrompt", "Hello");
bundle.putString("attachment", "{"name":""+caption+"","href":""+linkURL+"","description":""+description+"", "media":[{"type":"image","src":""+imgURL+"","href":""+linkURL+""}]}");
bundle.putString("message", "My message");
mAsyncRunner.requestPOST("stream.publish", new Bundle(), new WallPostRequestListener());.

Thanks.

[Korriged]

Here is a code you can use after having corrected the bug #3:

---

/**
 * Publishes information on Facebook wall of the connected user
 * Note: the user shall be logged in
 * 
 * @param callingContext Context of the calling Activity 
 * @return true if publication is possible
 */
public boolean publish(Context callingContext) {

    // Checks if there is a connection / if the user is logged in
    if(!facebookConnection.isSessionValid()) {
        return false;
    }


    // Builds the pieces of information to be displayed on Facebook wall
    // Note that it is not possible to jump to next line (e.g. \n, <br/>)

    // Builds the message
    String message = transformToHTML("Message");

    // Builds the title
    String title = transformToHTML("Title");

    // Builds image URL
    String url = transformToHTML("http://www.kratiroff.com/logo-facebook.jpg");

    // Builds the 1st line
    String firstLine = transformToHTML("1st line");

    // Builds the 2nd line
    String secondLine = transformToHTML("2nd line");

    // Builds the name of the link
    String anotherLinkName = transformToHTML("Another link name");

    // Builds the name of the action link
    String actionLinkName = transformToHTML("Action link");

    // Builds URL information
    String url = transformToHTML("http://www.facebook.com");

    // Creates the publish request to be sent to Facebook
    // Refer to http://wiki.developers.facebook.com/index.php/Stream.publish
    //  for parameters to send in the request
    Bundle parameters = new Bundle();

    // Builds message attachment JSON string
    parameters.putString("message", message);

    // Builds attachment JSON string with name=title, caption=1st line, description=2nd line
    // Hyperlink to url on title and image/logo
    String attachments = "{\"name\":\""+title + "\", \"href\":\""+url + "\", \"caption\":\""+firstLine + "\", \"description\":\""+secondLine + "\", \"media\":[{\"type\":\"image\", \"src\":\""+image + "\", \"href\":\""+url + "\"}], \"properties\":{\"another link\":{\"text\":\""+anotherLinkName+",\"href\":\""+url+"\"}}}";
    parameters.putString("attachment", transformToURL(attachments));

    // Builds action links (only 1 is taken into account by Facebook) JSON string to the url
    String actionLinks = "[{\"text\":\""+actionLinkName+ "\", \"href\":\""+url + "\"}]";
    parameters.putString("action_links", transformToURL(actionLinks));


    // Sends the publish request to Facebook
    // in a new thread since the SDK request() method is blocking
    try {
        ThreadPublish threadPublish = new ThreadPublish(this, callingContext, parameters, travelInformation.currentTravel);
        threadPublish.setName("Facebook publish thread");
        threadPublish.setDaemon(true);
        threadPublish.start();
        return true;
    } catch( IllegalThreadStateException e ) {
        myLog.debug(e.toString());
        return false;
    }

} // publish()


public class ThreadPublish extends Thread {

    // Calling context
    Context callingContext = null;

    // Publish parameters, between the constructor and run()
    Bundle params = null;

    // Travel to publish
    TravelBean travel = null;

    /**
     * run() method, called by start() does not allow parameters
     * -> new constructor
     * 
     * @param callingThread Thread which launched this one
     * @param params Publication parameters
     */
    public ThreadPublish(Context callingContext, Bundle params) {
        super();
        this.callingContext = callingContext;
        this.params = params;
        this.travel = travel;
    }

    /**
     * Thread runner
     * Sends the publication request
     * and treats the response
     */
    public void run() {

        // Should be transparent and included in the SDK (facebook-android-sdk)
        // but...
        params.putString("method", "stream.publish");

        try {
            // Could display a progress dialog here

            // Using the old REST API (http://developers.facebook.com/docs/reference/rest)
            String response = facebookConnection.request(params);
            // Using the new Graph API (http://developers.facebook.com/docs/api#publishing)... not working yet!
            // 'me' = current user, 'feed' = his/her wall

            // Decodes the response
            // and change the status as a consequence
            decodePublishReturn(response);
            // Kills this thread
            return;
        } catch(MalformedURLException e) {
            // Kills this thread
            return;
        } catch(IOException e) {
            // Kills this thread
            return;
        }
    }

} // class ThreadPublish

[Korriged]

And please find Utils methods here after:

    /**
     * Decodes the return string of Facebook/request()
     * The string can contain:
     * - an HTML error (HTML page: <HTML>...</HTML>
     * - a Facebook error (JSON)
     * - the id. of the published message if publication succeed
     * 
     * @param publishReturn String to transform         * 
     * @return String conformed with RFC 1738
     */
    private boolean decodePublishReturn(String publishReturn) {
        if((publishReturn==null) || (publishReturn.length()<=0)) {
        }
        // publishReturn = error code in an HTML page if HTTP error
        else if((publishReturn.contains("<HTML>"))||(publishReturn.contains("<html>"))) {
            int errorCode = Integer.parseInt(publishReturn.substring(6, 6+3));
            myLog.debug("Error: HTTP error "+errorCode);
            switch(errorCode) {
                case 102:
                    logout(callingContext);
                    break;
                case 200:
                    logout(callingContext);
                    break;
                default:
            }
        }
        // response = error code as JSON if Facebook error
        else if(publishReturn.contains("error_code")) {
            try {
                //JSONObject json = Util.parseJson(publishReturn);
                //final String errorCode = json.getString("error_code");
                myLog.debug("Error: Facebook error "+Util.parseJson(publishReturn).getString("error_code"));
            } catch(FacebookError e) {
            } catch(JSONException e) {
            }
        }
        // response = error if Facebook error
        else if(publishReturn.contains("error")) {
        }
        else {
            // Published!
            // response = post id (Long as a string)
            // Toast.makeText(context, "Published!", Toast.LENGTH_LONG).show();
            return true;
        }
        // Toast.makeText(context, "Publish error :(", Toast.LENGTH_LONG).show();
        return false;
    }




/**
 * Replaces non 7-bit ASCII characters with &#nnn; (where nnn is the ASCII code of the character)
 * e.g. à é è -> &#224; &#233; &#232; 
 * 
 * @param input String to transform
 * 
 * @return String conformed with HTML specifications
 */
public static String transformToHTML(String input) {
    StringBuffer temp = new StringBuffer(input);

    // Replaces \n by the corresponding HTML tag
    for(int i=0; i<temp.length();i++) {
        if(temp.charAt(i)=='\n') {
            temp.replace(i, i+2, "<br />");
        }
    }

    // HTML: non-7bit-ASCII characters -> &nnn; (where nnn is the ASCII code of the character)
    for(int i=0; i<temp.length();) {
        char character = temp.charAt(i); 
        // Skips control characters
        if(character<' ') {
            temp.replace(i, i+1, "");
        // Keeps spaces
        } else if(character==' ') {
            i++;
        // Keeps digits and letters,
        // and replaces other characters by &#nnn; (nnn=ascii code in decimal)
        } else if((character<'0')
                || ((character>'9') && (character<'A'))
                || ((character>'Z') && (character<'a'))
                || (character>'z')) {
            int asciiCode = (int)character;
            String asciiCodeString = String.valueOf(asciiCode);
            String completeWith0;
            if(asciiCodeString.length()==1) {
                completeWith0 = "00";
            } else if(asciiCodeString.length()==2) {
                completeWith0 = "0";
            } else {
                completeWith0 = "";
            }
            temp.replace(i, i+1, "&#"+completeWith0+asciiCodeString+";");
            i+=6;
        }
        else {
            i++;
        }
    }
    return new String(temp);
}

/**
 * Replaces special characters to characters valid to be sent through an URL
 *  (e.g. HTTP GET):
 *  e.g. ? & = -> %3F %26 %3D
 *  as defined in RFC 1738
 * 
 * @param input String to transform
 * 
 * @return String conformed with RFC 1738
 */
public static String transformToURL(String input) {
    StringBuffer temp = new StringBuffer(input);

    // URL: key characters -> %nn

/*
return URLEncoder.encode(new String(temp));
/
/
XOR:
*/
for(int i=0; i<temp.length();) {
switch(temp.charAt(i)) {
case '\t': temp.replace(i, i+2, "%09"); i+=3; break;
case ' ': temp.replace(i, i+1, "%20"); i+=3; break;
case '"': temp.replace(i, i+1, "%22"); i+=3; break;
case '#': temp.replace(i, i+1, "%23"); i+=3; break;
case '%': temp.replace(i, i+1, "%25"); i+=3; break;
case '&': temp.replace(i, i+1, "%26"); i+=3; break;
case '(': temp.replace(i, i+1, "%28"); i+=3; break;
case ')': temp.replace(i, i+1, "%29"); i+=3; break;
case '+': temp.replace(i, i+1, "%2B"); i+=3; break;
case ',': temp.replace(i, i+1, "%2C"); i+=3; break;
//case '.': temp.replace(i, i+1, "%2E"); i+=3; break;
case '/': temp.replace(i, i+1, "%2F"); i+=3; break;
case ':': temp.replace(i, i+1, "%3A"); i+=3; break;
case ';': temp.replace(i, i+1, "%3B"); i+=3; break;
case '<': temp.replace(i, i+1, "%3C"); i+=3; break;
case '=': temp.replace(i, i+1, "%3D"); i+=3; break;
case '>': temp.replace(i, i+1, "%3E"); i+=3; break;
case '?': temp.replace(i, i+1, "%3F"); i+=3; break;
case '@': temp.replace(i, i+1, "%40"); i+=3; break;
case '[': temp.replace(i, i+1, "%5B"); i+=3; break;
case ']': temp.replace(i, i+1, "%5D"); i+=3; break;
case '^': temp.replace(i, i+1, "%5E"); i+=3; break;
case ''': temp.replace(i, i+1, "%60"); i+=3; break;
case '{': temp.replace(i, i+1, "%7B"); i+=3; break;
case '|': temp.replace(i, i+1, "%7C"); i+=3; break;
case '}': temp.replace(i, i+1, "%7D"); i+=3; break;
case '~': temp.replace(i, i+1, "%7E"); i+=3; break;
default: i++;
}
}
return new String(temp);
}

[veradismail]

Thanks Korriged.
ll try it tonite.