/**
* prepare the HTTP connection
*
* @param conn
* @throws IOException
*/
private void configureConncetion(HttpConnection conn) throws IOException {
conn.setRequestProperty("User-Agent", ua);
String locale = System.getProperty("microedition.locale");
if (locale == null) {
locale = "en-US";
}
conn.setRequestProperty("Accept-Language", locale);
conn.setRequestProperty("Content-Type", "text/json");
conn.setRequestProperty("Accept", "text/plain");
conn.setRequestProperty("appKey", "929e65a6-7a88-4c4c-a75b-d40d18cdabbb");
}
private Object request(
String url, boolean post, Hashtable params, boolean basicAuth, boolean processOutput)
throws Exception {
HttpConnection conn = null;
Writer writer = null;
InputStream is = null;
try {
if (!post && (params != null)) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
OutputStreamWriter osw = new OutputStreamWriter(baos, this.encoding);
this.encodeParams(params, osw);
osw.flush();
osw.close();
osw = null;
url += "?" + new String(baos.toByteArray(), this.encoding);
baos = null;
}
conn = (HttpConnection) Connector.open(url);
conn.setRequestMethod(post ? HttpConnection.POST : HttpConnection.GET);
if (basicAuth) {
if (!this.areCredentialsSet()) throw new Exception("Credentials are not set");
String token = base64Encode((this.user + ":" + this.pass).getBytes(this.encoding));
conn.setRequestProperty("Authorization", "Basic " + token);
}
if (post && (params != null)) {
OutputStream os = conn.openOutputStream();
writer = new OutputStreamWriter(os, this.encoding);
this.encodeParams(params, writer);
writer.flush();
writer.close();
os = null;
writer = null;
}
int code = conn.getResponseCode();
if ((code != 200) && (code != 302))
throw new Exception("Unexpected response code " + code + ": " + conn.getResponseMessage());
is = conn.openInputStream();
if (processOutput) {
synchronized (this.json) {
return this.json.parse(is);
}
} else {
this.pump(is, System.out, 1024);
return null;
}
} finally {
if (writer != null) writer.close();
if (is != null) is.close();
if (conn != null) conn.close();
}
}
private String getContent(String url) {
HttpConnection httemp = null;
InputStream istemp = null;
String content = "";
try {
httemp = (HttpConnection) Connector.open(url);
httemp.setRequestProperty("Connection", "cl" + "ose");
if (HttpConnection.HTTP_OK != httemp.getResponseCode()) {
throw new IOException();
}
istemp = httemp.openInputStream();
int length = (int) httemp.getLength();
if (-1 != length) {
byte[] bytes = new byte[length];
istemp.read(bytes);
content = new String(bytes);
} else {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
while (true) {
int ch = istemp.read();
if (-1 == ch) break;
bytes.write(ch);
}
content = new String(bytes.toByteArray());
bytes.close();
}
} catch (Exception e) {
content = "Error: " + e.getMessage();
}
try {
httemp.close();
istemp.close();
} catch (Exception e) {
}
return StringConvertor.removeCr(content);
}
public InputStream makeRequest(String url, OutputStream pos) throws IOException {
HttpConnection conn = null;
ByteArrayOutputStream bos = null;
DataInputStream is = null;
DataOutputStream os = null;
InputStream pis = null;
try {
conn = (HttpConnection) Connector.open(url, Connector.READ_WRITE);
conn.setRequestMethod(HttpConnection.POST);
conn.setRequestProperty("Content-Type", "application/octet-stream");
conn.setRequestProperty("Accept", "application/octet-stream");
if (sessionCookie == null) {
conn.setRequestProperty("version", "???");
} else {
conn.setRequestProperty("cookie", sessionCookie);
}
// Getting the output stream may flush the headers
os = conn.openDataOutputStream();
os.write(pos.getBytes());
os.close();
int responseCode;
try {
responseCode = conn.getResponseCode();
} catch (IOException e) {
throw new IOException("No response from " + url);
}
if (responseCode != HttpConnection.HTTP_OK) {
throw new IllegalArgumentException();
}
bos = new ByteArrayOutputStream();
{
is = conn.openDataInputStream();
String sc = conn.getHeaderField("set-cookie");
if (sc != null) {
sessionCookie = sc;
}
while (true) {
int ch = is.read();
if (ch == -1) break;
bos.write(ch);
}
is.close();
is = null;
conn.close();
conn = null;
}
pis = new InputStream(bos.toByteArray());
bos.close();
bos = null;
} catch (Exception e) {
e.printStackTrace();
try {
if (conn != null) {
conn.close();
conn = null;
}
if (bos != null) {
bos.close();
bos = null;
}
if (is != null) {
is.close();
is = null;
}
} catch (Exception exc) {
}
throw new IOException();
}
return pis;
}
/**
* UPDATE
*
* @param url
* @param data the request body
* @throws IOException
*/
public String post(String url, String data) throws IOException {
HttpConnection hcon = null;
DataInputStream dis = null;
DataOutputStream dos = null;
StringBuffer responseMessage = new StringBuffer();
try {
int redirectTimes = 0;
boolean redirect;
do {
redirect = false;
// an HttpConnection with both read and write access
hcon = getConnection(url, Connector.READ_WRITE);
// set the request method to POST
hcon.setRequestMethod(HttpConnection.POST);
// overwrite content type to be form based
hcon.setRequestProperty("Content-Type", "application/json");
// set message length
if (data != null) {
hcon.setRequestProperty("Content-Length", "" + data.length());
}
if (data != null) {
// obtain DataOutputStream for sending the request string
dos = hcon.openDataOutputStream();
byte[] request_body = data.getBytes();
// send request string to server
for (int i = 0; i < request_body.length; i++) {
dos.writeByte(request_body[i]);
} // end for( int i = 0; i < request_body.length; i++ )
dos.flush(); // Including this line may produce
// undesiredresults on certain devices
}
// obtain DataInputStream for receiving server response
dis = new DataInputStream(hcon.openInputStream());
// retrieve the response from server
int ch;
while ((ch = dis.read()) != -1) {
responseMessage.append((char) ch);
} // end while( ( ch = dis.read() ) != -1 ) {
// check status code
int status = hcon.getResponseCode();
switch (status) {
case HttpConnection.HTTP_OK: // Success!
break;
case HttpConnection.HTTP_TEMP_REDIRECT:
case HttpConnection.HTTP_MOVED_TEMP:
case HttpConnection.HTTP_MOVED_PERM:
// Redirect: get the new location
url = hcon.getHeaderField("location");
System.out.println("Redirect: " + url);
if (dis != null) dis.close();
if (hcon != null) hcon.close();
hcon = null;
redirectTimes++;
redirect = true;
break;
default:
// Error: throw exception
hcon.close();
throw new IOException("Response status not OK:" + status);
}
// max 5 redirects
} while (redirect == true && redirectTimes < 5);
if (redirectTimes == 5) {
throw new IOException("Too much redirects");
}
} catch (Exception e) {
e.printStackTrace();
responseMessage.append("ERROR");
} finally {
// free up i/o streams and http connection
try {
if (hcon != null) hcon.close();
if (dis != null) dis.close();
if (dos != null) dos.close();
} catch (IOException ioe) {
ioe.printStackTrace();
} // end try/catch
} // end try/catch/finally
return responseMessage.toString();
}
