/**
* Parses the main adserver response for backfill information and returns an appropriate
* BackfillData object if something was actually found
*
* @param data the main adserver response body
* @return null if no backfill was detected, a valid BackfillData object otherwise
* @de.guj.ems.mobile.sdk.controllers.BackfillDelegator.BackfillData
*/
public static final BackfillData isBackfill(String adSpace, String data) {
// TODO remove when Smartstream is fixed for 4.4
if (Build.VERSION.SDK_INT >= 19) {
return null;
}
if (data == null
|| data.startsWith("<div")
|| data.startsWith("<!DOC")
|| data.startsWith("<html")
|| data.startsWith("<VAST")
|| data.startsWith("<!-- <connectad>")) {
return null;
}
SdkLog.d(TAG, "Checking string " + data + " for backfill...");
for (int i = 0; i < BACK_FILL_OPEN.length; i++) {
if (data.startsWith(BACK_FILL_OPEN[i])) {
return new BackfillData(
adSpace,
data.substring(BACK_FILL_OPEN[i].length(), data.indexOf(BACK_FILL_CLOSE[i])),
i);
}
}
return null;
}
@Override
protected IAdResponse httpGet(String url) {
// from Gingerbread on it is recommended to use HttpUrlConnection
if (TrackingRequest.USE_HTTPURLCONNECTION) {
SdkLog.d(TAG, "Younger than Froyo - using HttpUrlConnection.");
HttpURLConnection con = null;
try {
URL uUrl = new URL(url);
con = (HttpURLConnection) uUrl.openConnection();
con.setRequestProperty(USER_AGENT_HEADER_NAME, SdkUtil.getUserAgent());
con.setReadTimeout(2500);
con.setConnectTimeout(2500);
BufferedInputStream in = new BufferedInputStream(con.getInputStream());
if (con.getResponseCode() != 200) {
throw new Exception("Server returned HTTP " + con.getResponseCode());
}
in.close();
} catch (Exception e) {
setLastError(e);
} finally {
if (con != null) {
con.disconnect();
SdkLog.d(TAG, "Request finished.");
}
}
}
// before Gingerbread, DefaultHttpClient should be used
else {
SdkLog.d(TAG, "Older than Gingerbread - using DefaultHttpClient.");
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 500);
HttpConnectionParams.setSoTimeout(httpParameters, 1000);
DefaultHttpClient client = new DefaultHttpClient(httpParameters);
HttpGet httpGet = new HttpGet(url);
httpGet.setHeader(USER_AGENT_HEADER_NAME, SdkUtil.getUserAgent());
try {
HttpResponse execute = client.execute(httpGet);
if (execute.getStatusLine().getStatusCode() != 200) {
throw new Exception("Server returned HTTP " + execute.getStatusLine().getStatusCode());
}
} catch (Exception e) {
setLastError(e);
}
SdkLog.d(TAG, "Request finished.");
}
return null;
}