/**
* Makes a http request to URL using the set method (HttpConnection.GET or HttpConnection.POST)
* and the supplied request parameters.
*
* @param url
* @param requestMethod
* @param requestProperties User supplied Http request header parameters.
* @param data if method is POST then the post data are in this array.
* @param updateCurrentPage if set to true the HttpClient will remember the URL of this request in
* order to handle feature relative path requests
* @return
* @throws InterruptedIOException
* @throws SecurityException
* @throws IOException
* @throws IllegalStateException
* @throws Exception
*/
public Response requestResource(
String url,
String requestMethod,
Hashtable requestProperties,
byte[] data,
boolean updateCurrentPage)
throws InterruptedIOException, SecurityException, IOException, IllegalStateException,
Exception {
url = getAbsolutEncodedURL(url);
int idx = url.indexOf("://");
if (idx == -1) throw new IllegalArgumentException("URL must start with the protocol.");
String protocol = url.substring(0, idx);
if (protocol.equals("file")) {
// Log.logInfo("File: ["+url+"]");
InputStream in = null;
try {
in = connector.openInputStream(url);
} catch (Exception e) {
Log.logDebug("Exception:" + e.getClass() + ": " + e.getMessage());
}
if (in == null) {
Log.logWarn("Failed to load local resource " + url);
return null;
}
Response result = new Response("", "file", url.substring(7), in);
if (updateCurrentPage) currentResponse = result;
return result;
}
if (protocol.equals("rms")) {
// Log.logInfo("File: ["+url+"]");
InputStream in = null;
String rms = url.substring(6);
try {
in = connector.rmsRead(rms);
} catch (Exception e) {
Log.logDebug("Exception:" + e.getClass() + ": " + e.getMessage());
}
if (in == null) {
Log.logWarn("Failed to load local resource " + url);
return null;
}
Response result = new Response("", "rms", rms, in);
if (updateCurrentPage) currentResponse = result;
return result;
}
HttpConnection conn = null;
Log.logInfo(requestMethod + " [" + url + "]");
try { // the resource is located remotelly. Try to retrieve it.
int mode = Connector.READ_WRITE;
// XXX CREATING A READ ONLY CONNECTION WILL CAUSE SOME BLACKBERRY DEVICES NOT TO WORK. XXX
// if(HttpConnection.POST.equals(requestMethod) && data!=null) mode=Connector.READ_WRITE;
int code;
Response result = new Response();
registerConnection(result);
conn = (HttpConnection) connector.open(url, mode, true);
conn.setRequestMethod(requestMethod);
for (int i = 0; i < defaultHeaderValues.length; ++i) {
conn.setRequestProperty(defaultHeaderValues[i][0], defaultHeaderValues[i][1]);
}
if (requestProperties != null) {
Enumeration propKeys = requestProperties.keys();
while (propKeys.hasMoreElements()) {
String key = (String) propKeys.nextElement();
String val = (String) requestProperties.get(key);
conn.setRequestProperty(key, val);
}
}
// add cookies
String cookies = getCookies(conn, conn.getFile());
if (cookies.length() > 0) {
conn.setRequestProperty("Cookie", cookies);
}
// add referer
if (currentResponse != null && currentResponse.getProtocol().equals("file") == false) {
String q = currentResponse.getQuery();
if (q != null) q = "?" + q;
else q = "";
String referer = currentResponse.getBaseURL() + currentResponse.getFile() + q;
conn.setRequestProperty("Referer", referer);
}
if (mode == Connector.READ_WRITE && data != null) // exoume na grapsoume kiolas.
{
conn.setRequestProperty("Content-Length", "" + data.length);
OutputStream out = conn.openOutputStream();
out.write(data);
out.close();
Log.logDebug("Post data[" + data.length + "] sent.");
}
Log.logDebug("Attempting to retrieve response code..");
code = conn.getResponseCode();
result.setConnection(conn);
Log.logInfo("Response " + code + " " + conn.getResponseMessage());
for (int i = 0; i < 100; ++i) {
String key = conn.getHeaderFieldKey(i);
if (key == null) break;
if (key.toLowerCase().equals("set-cookie")) {
// the cookieStr may be more than one cookies separated by commas.
// First we split the cookies and then we parse them.
// this is a bit tricky since a cookie may contain commas as well...(who thought of that
// delimiter anyway?)
Vector cookieStrings = Cookie.splitCookies(conn.getHeaderField(i));
for (int j = 0; j < cookieStrings.size(); ++j)
saveCookie((String) cookieStrings.elementAt(j), conn.getHost());
} else Log.logDebug(key + ": " + conn.getHeaderField(i));
}
if (code == HttpConnection.HTTP_MOVED_PERM
|| code == HttpConnection.HTTP_MOVED_TEMP
|| // 301 or 307 redirect using the same method (post of get)
code
== HttpConnection.HTTP_SEE_OTHER) // must redirect using the GET method (see protocol)
{
if (updateCurrentPage) currentResponse = result;
if (result.isCanceled()) throw new InterruptedIOException("Redirect canceled by user.");
redirectCount++;
String redirect = conn.getHeaderField("location");
Log.logInfo("Redirect[" + redirectCount + "] " + code + " to location: " + redirect);
if (redirectCount < MAX_REDIRECTS) {
try {
conn.close();
} catch (IOException e) {
Log.logWarn("HttpClient: Failed to close connection on redirect.", e);
}
conn = null; // make old connection null so on finally we will not try to unregister it
// again.
if (code == HttpConnection.HTTP_MOVED_PERM || code == HttpConnection.HTTP_MOVED_TEMP)
return requestResource(
redirect, requestMethod, requestProperties, data, updateCurrentPage);
else
return requestResource(
redirect, HttpConnection.GET, requestProperties, data, updateCurrentPage);
} else {
throw new IllegalStateException("Too many redirects.");
}
} else // response is 200 or another http code.
{
if (updateCurrentPage
&& code == HttpConnection.HTTP_OK) // updateCurrentPage only when response is 200 (OK)
currentResponse = result;
return result;
}
} catch (Exception ex) {
if (ex instanceof InterruptedIOException) Log.logInfo("USER Closed connection to " + url);
else Log.logError("Request to " + url + " failed.", ex);
if (conn != null) {
try {
conn.close();
} catch (IOException e) {
Log.logWarn("Failed to close the connection.", e);
}
}
throw ex;
} finally {
redirectCount = 0;
}
}
