352 lines
11 KiB
Java
352 lines
11 KiB
Java
package org.fox.ttrss;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.security.cert.CertificateException;
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import java.security.cert.X509Certificate;
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import java.util.HashMap;
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import javax.net.ssl.HostnameVerifier;
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import javax.net.ssl.HttpsURLConnection;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.SSLSession;
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import javax.net.ssl.TrustManager;
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import javax.net.ssl.X509TrustManager;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.net.ConnectivityManager;
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import android.net.NetworkInfo;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.preference.PreferenceManager;
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import android.util.Base64;
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import android.util.Log;
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import com.google.gson.Gson;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonElement> {
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private final String TAG = this.getClass().getSimpleName();
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public enum ApiError { NO_ERROR, HTTP_UNAUTHORIZED, HTTP_FORBIDDEN, HTTP_NOT_FOUND,
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HTTP_SERVER_ERROR, HTTP_OTHER_ERROR, SSL_REJECTED, SSL_HOSTNAME_REJECTED, PARSE_ERROR, IO_ERROR, OTHER_ERROR, API_DISABLED,
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API_UNKNOWN, LOGIN_FAILED, INVALID_URL, API_INCORRECT_USAGE, NETWORK_UNAVAILABLE, API_UNKNOWN_METHOD };
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public static final int API_STATUS_OK = 0;
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public static final int API_STATUS_ERR = 1;
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private String m_api;
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private boolean m_transportDebugging = false;
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protected int m_responseCode = 0;
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protected String m_responseMessage;
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protected int m_apiStatusCode = 0;
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protected boolean m_canUseProgress = false;
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protected Context m_context;
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private SharedPreferences m_prefs;
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protected ApiError m_lastError;
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public ApiRequest(Context context) {
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m_context = context;
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m_prefs = PreferenceManager.getDefaultSharedPreferences(m_context);
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m_api = m_prefs.getString("ttrss_url", "").trim();
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m_transportDebugging = m_prefs.getBoolean("transport_debugging", false);
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m_lastError = ApiError.NO_ERROR;
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}
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@SuppressLint("NewApi")
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@SuppressWarnings("unchecked")
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public void execute(HashMap<String,String> map) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
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super.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, map);
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else
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super.execute(map);
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}
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protected int getErrorMessage() {
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switch (m_lastError) {
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case NO_ERROR:
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return R.string.error_unknown;
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case HTTP_UNAUTHORIZED:
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return R.string.error_http_unauthorized;
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case HTTP_FORBIDDEN:
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return R.string.error_http_forbidden;
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case HTTP_NOT_FOUND:
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return R.string.error_http_not_found;
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case HTTP_SERVER_ERROR:
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return R.string.error_http_server_error;
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case HTTP_OTHER_ERROR:
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return R.string.error_http_other_error;
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case SSL_REJECTED:
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return R.string.error_ssl_rejected;
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case SSL_HOSTNAME_REJECTED:
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return R.string.error_ssl_hostname_rejected;
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case PARSE_ERROR:
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return R.string.error_parse_error;
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case IO_ERROR:
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return R.string.error_io_error;
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case OTHER_ERROR:
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return R.string.error_other_error;
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case API_DISABLED:
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return R.string.error_api_disabled;
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case API_UNKNOWN:
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return R.string.error_api_unknown;
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case API_UNKNOWN_METHOD:
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return R.string.error_api_unknown_method;
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case LOGIN_FAILED:
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return R.string.error_login_failed;
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case INVALID_URL:
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return R.string.error_invalid_api_url;
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case API_INCORRECT_USAGE:
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return R.string.error_api_incorrect_usage;
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case NETWORK_UNAVAILABLE:
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return R.string.error_network_unavailable;
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default:
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Log.d(TAG, "getErrorMessage: unknown error code=" + m_lastError);
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return R.string.error_unknown;
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}
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}
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@Override
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protected JsonElement doInBackground(HashMap<String, String>... params) {
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if (!isNetworkAvailable()) {
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m_lastError = ApiError.NETWORK_UNAVAILABLE;
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return null;
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}
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Gson gson = new Gson();
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String requestStr = gson.toJson(new HashMap<String,String>(params[0]));
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byte[] postData = null;
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try {
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postData = requestStr.getBytes("UTF-8");
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} catch (UnsupportedEncodingException e) {
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m_lastError = ApiError.OTHER_ERROR;
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e.printStackTrace();
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return null;
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}
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/* disableConnectionReuseIfNecessary(); */
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if (m_transportDebugging) Log.d(TAG, ">>> (" + requestStr + ") " + m_api);
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/* ApiRequest.trustAllHosts(m_prefs.getBoolean("ssl_trust_any", false),
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m_prefs.getBoolean("ssl_trust_any_host", false)); */
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URL url;
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try {
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url = new URL(m_api + "/api/");
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} catch (Exception e) {
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m_lastError = ApiError.INVALID_URL;
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e.printStackTrace();
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return null;
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}
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try {
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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String httpLogin = m_prefs.getString("http_login", "").trim();
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String httpPassword = m_prefs.getString("http_password", "").trim();
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if (httpLogin.length() > 0) {
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if (m_transportDebugging) Log.d(TAG, "Using HTTP Basic authentication.");
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conn.setRequestProperty("Authorization", "Basic " +
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Base64.encodeToString((httpLogin + ":" + httpPassword).getBytes("UTF-8"), Base64.NO_WRAP));
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}
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conn.setDoInput(true);
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conn.setDoOutput(true);
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conn.setUseCaches(false);
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conn.setRequestMethod("POST");
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conn.setRequestProperty("Content-Length", Integer.toString(postData.length));
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OutputStream out = conn.getOutputStream();
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out.write(postData);
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out.close();
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m_responseCode = conn.getResponseCode();
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m_responseMessage = conn.getResponseMessage();
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switch (m_responseCode) {
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case HttpURLConnection.HTTP_OK:
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StringBuffer response = new StringBuffer();
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InputStreamReader in = new InputStreamReader(conn.getInputStream(), "UTF-8");
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char[] buf = new char[256];
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int read = 0;
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int total = 0;
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int contentLength = conn.getHeaderFieldInt("Api-Content-Length", -1);
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m_canUseProgress = (contentLength != -1);
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while ((read = in.read(buf)) >= 0) {
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response.append(buf, 0, read);
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total += read;
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publishProgress(Integer.valueOf(total), Integer.valueOf(contentLength));
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}
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if (m_transportDebugging) Log.d(TAG, "<<< " + response);
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JsonParser parser = new JsonParser();
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JsonElement result = parser.parse(response.toString());
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JsonObject resultObj = result.getAsJsonObject();
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m_apiStatusCode = resultObj.get("status").getAsInt();
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conn.disconnect();
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switch (m_apiStatusCode) {
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case API_STATUS_OK:
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return result.getAsJsonObject().get("content");
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case API_STATUS_ERR:
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JsonObject contentObj = resultObj.get("content").getAsJsonObject();
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String error = contentObj.get("error").getAsString();
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if (error.equals("LOGIN_ERROR")) {
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m_lastError = ApiError.LOGIN_FAILED;
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} else if (error.equals("API_DISABLED")) {
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m_lastError = ApiError.API_DISABLED;
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} else if (error.equals("NOT_LOGGED_IN")) {
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m_lastError = ApiError.LOGIN_FAILED;
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} else if (error.equals("INCORRECT_USAGE")) {
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m_lastError = ApiError.API_INCORRECT_USAGE;
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} else if (error.equals("UNKNOWN_METHOD")) {
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m_lastError = ApiError.API_UNKNOWN_METHOD;
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} else {
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Log.d(TAG, "Unknown API error: " + error);
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m_lastError = ApiError.API_UNKNOWN;
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}
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}
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return null;
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case HttpURLConnection.HTTP_UNAUTHORIZED:
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m_lastError = ApiError.HTTP_UNAUTHORIZED;
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break;
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case HttpURLConnection.HTTP_FORBIDDEN:
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m_lastError = ApiError.HTTP_FORBIDDEN;
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break;
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case HttpURLConnection.HTTP_NOT_FOUND:
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m_lastError = ApiError.HTTP_NOT_FOUND;
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break;
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case HttpURLConnection.HTTP_INTERNAL_ERROR:
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m_lastError = ApiError.HTTP_SERVER_ERROR;
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break;
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default:
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Log.d(TAG, "HTTP response code: " + m_responseCode + "(" + m_responseMessage + ")");
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m_lastError = ApiError.HTTP_OTHER_ERROR;
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break;
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}
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conn.disconnect();
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return null;
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} catch (javax.net.ssl.SSLPeerUnverifiedException e) {
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m_lastError = ApiError.SSL_REJECTED;
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e.printStackTrace();
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} catch (IOException e) {
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m_lastError = ApiError.IO_ERROR;
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if (e.getMessage() != null) {
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if (e.getMessage().matches("Hostname [^ ]+ was not verified")) {
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m_lastError = ApiError.SSL_HOSTNAME_REJECTED;
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}
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}
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e.printStackTrace();
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} catch (com.google.gson.JsonSyntaxException e) {
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m_lastError = ApiError.PARSE_ERROR;
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e.printStackTrace();
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} catch (Exception e) {
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m_lastError = ApiError.OTHER_ERROR;
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e.printStackTrace();
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}
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return null;
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}
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protected static void trustAllHosts(boolean trustAnyCert, boolean trustAnyHost) {
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try {
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if (trustAnyCert) {
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X509TrustManager easyTrustManager = new X509TrustManager() {
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public void checkClientTrusted(
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X509Certificate[] chain,
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String authType) throws CertificateException {
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// Oh, I am easy!
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}
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public void checkServerTrusted(
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X509Certificate[] chain,
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String authType) throws CertificateException {
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// Oh, I am easy!
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}
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public X509Certificate[] getAcceptedIssuers() {
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return null;
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}
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};
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// Create a trust manager that does not validate certificate chains
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TrustManager[] trustAllCerts = new TrustManager[] {easyTrustManager};
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// Install the all-trusting trust manager
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SSLContext sc = SSLContext.getInstance("TLS");
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sc.init(null, trustAllCerts, new java.security.SecureRandom());
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HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
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}
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if (trustAnyHost) {
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HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
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@Override
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public boolean verify(String hostname, SSLSession session) {
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return true;
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}
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});
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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@SuppressWarnings("deprecation")
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protected static void disableConnectionReuseIfNecessary() {
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// HTTP connection reuse which was buggy pre-froyo
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if (Integer.parseInt(Build.VERSION.SDK) < Build.VERSION_CODES.FROYO) {
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System.setProperty("http.keepAlive", "false");
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}
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}
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protected boolean isNetworkAvailable() {
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ConnectivityManager cm = (ConnectivityManager)
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m_context.getSystemService(Context.CONNECTIVITY_SERVICE);
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NetworkInfo networkInfo = cm.getActiveNetworkInfo();
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// if no network is available networkInfo will be null
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// otherwise check if we are connected
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if (networkInfo != null && networkInfo.isConnected()) {
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return true;
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}
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return false;
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}
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}
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