tt-rss-android/src/org/fox/ttrss/ApiRequest.java

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package org.fox.ttrss;
import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
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import java.util.HashMap;
import org.apache.http.HttpHost;
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import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
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import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.conn.scheme.Scheme;
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import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
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import org.fox.ttrss.util.EasySSLSocketFactory;
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import android.content.Context;
import android.content.SharedPreferences;
import android.net.http.AndroidHttpClient;
import android.os.AsyncTask;
import android.preference.PreferenceManager;
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import android.util.Log;
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import com.google.gson.Gson;
import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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,
HTTP_SERVER_ERROR, HTTP_OTHER_ERROR, SSL_REJECTED, PARSE_ERROR, IO_ERROR, OTHER_ERROR, API_DISABLED, API_UNKNOWN, LOGIN_FAILED, INVALID_URL, INCORRECT_USAGE };
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public static final int API_STATUS_OK = 0;
public static final int API_STATUS_ERR = 1;
private String m_api;
private boolean m_trustAny = false;
private boolean m_transportDebugging = false;
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protected int m_httpStatusCode = 0;
protected int m_apiStatusCode = 0;
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protected Context m_context;
private SharedPreferences m_prefs;
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protected ApiError m_lastError;
public ApiRequest(Context context) {
m_context = context;
m_prefs = PreferenceManager.getDefaultSharedPreferences(m_context);
m_api = m_prefs.getString("ttrss_url", null).trim();
m_trustAny = m_prefs.getBoolean("ssl_trust_any", false);
m_transportDebugging = m_prefs.getBoolean("transport_debugging", false);
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m_lastError = ApiError.NO_ERROR;
}
protected int getErrorMessage() {
switch (m_lastError) {
case NO_ERROR:
return R.string.error_unknown;
case HTTP_UNAUTHORIZED:
return R.string.error_http_unauthorized;
case HTTP_FORBIDDEN:
return R.string.error_http_forbidden;
case HTTP_NOT_FOUND:
return R.string.error_http_not_found;
case HTTP_SERVER_ERROR:
return R.string.error_http_server_error;
case HTTP_OTHER_ERROR:
return R.string.error_http_other_error;
case SSL_REJECTED:
return R.string.error_ssl_rejected;
case PARSE_ERROR:
return R.string.error_parse_error;
case IO_ERROR:
return R.string.error_io_error;
case OTHER_ERROR:
return R.string.error_other_error;
case API_DISABLED:
return R.string.error_api_disabled;
case API_UNKNOWN:
return R.string.error_api_unknown;
case LOGIN_FAILED:
return R.string.error_login_failed;
case INVALID_URL:
return R.string.error_invalid_api_url;
case INCORRECT_USAGE:
return R.string.error_api_incorrect_usage;
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default:
Log.d(TAG, "getErrorMessage: unknown error code=" + m_lastError);
return R.string.error_unknown;
}
}
@Override
protected JsonElement doInBackground(HashMap<String, String>... params) {
Gson gson = new Gson();
String requestStr = gson.toJson(new HashMap<String,String>(params[0]));
if (m_transportDebugging) Log.d(TAG, ">>> (" + requestStr + ") " + m_api);
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AndroidHttpClient client = AndroidHttpClient.newInstance("Tiny Tiny RSS");
if (m_trustAny) {
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client.getConnectionManager().getSchemeRegistry().register(new Scheme("https", new EasySSLSocketFactory(), 443));
}
try {
HttpPost httpPost;
try {
httpPost = new HttpPost(m_api + "/api/");
} catch (IllegalArgumentException e) {
m_lastError = ApiError.INVALID_URL;
e.printStackTrace();
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client.close();
return null;
} catch (Exception e) {
m_lastError = ApiError.OTHER_ERROR;
e.printStackTrace();
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client.close();
return null;
}
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HttpContext context = null;
String httpLogin = m_prefs.getString("http_login", "").trim();
String httpPassword = m_prefs.getString("http_password", "").trim();
if (httpLogin.length() > 0) {
if (m_transportDebugging) Log.d(TAG, "Using HTTP Basic authentication.");
URL targetUrl;
try {
targetUrl = new URL(m_api);
} catch (MalformedURLException e) {
m_lastError = ApiError.INVALID_URL;
e.printStackTrace();
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client.close();
return null;
}
HttpHost targetHost = new HttpHost(targetUrl.getHost(), targetUrl.getPort(), targetUrl.getProtocol());
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CredentialsProvider cp = new BasicCredentialsProvider();
context = new BasicHttpContext();
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cp.setCredentials(
new AuthScope(targetHost.getHostName(), targetHost.getPort()),
new UsernamePasswordCredentials(httpLogin, httpPassword));
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context.setAttribute(ClientContext.CREDS_PROVIDER, cp);
}
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httpPost.setEntity(new StringEntity(requestStr, "utf-8"));
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HttpResponse execute = client.execute(httpPost, context);
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m_httpStatusCode = execute.getStatusLine().getStatusCode();
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switch (m_httpStatusCode) {
case 200:
InputStream content = execute.getEntity().getContent();
BufferedReader buffer = new BufferedReader(
new InputStreamReader(content), 8192);
String s = "";
String response = "";
while ((s = buffer.readLine()) != null) {
response += s;
}
if (m_transportDebugging) Log.d(TAG, "<<< " + response);
JsonParser parser = new JsonParser();
JsonElement result = parser.parse(response);
JsonObject resultObj = result.getAsJsonObject();
m_apiStatusCode = resultObj.get("status").getAsInt();
client.close();
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switch (m_apiStatusCode) {
case API_STATUS_OK:
return result.getAsJsonObject().get("content");
case API_STATUS_ERR:
JsonObject contentObj = resultObj.get("content").getAsJsonObject();
String error = contentObj.get("error").getAsString();
if (error.equals("LOGIN_ERROR")) {
m_lastError = ApiError.LOGIN_FAILED;
} else if (error.equals("API_DISABLED")) {
m_lastError = ApiError.API_DISABLED;
} else if (error.equals("NOT_LOGGED_IN")) {
m_lastError = ApiError.LOGIN_FAILED;
} else if (error.equals("INCORRECT_USAGE")) {
m_lastError = ApiError.INCORRECT_USAGE;
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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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return null;
case 401:
m_lastError = ApiError.HTTP_UNAUTHORIZED;
break;
case 403:
m_lastError = ApiError.HTTP_FORBIDDEN;
break;
case 404:
m_lastError = ApiError.HTTP_NOT_FOUND;
break;
case 500:
m_lastError = ApiError.HTTP_SERVER_ERROR;
break;
default:
m_lastError = ApiError.HTTP_OTHER_ERROR;
break;
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}
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client.close();
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return null;
} catch (javax.net.ssl.SSLPeerUnverifiedException e) {
m_lastError = ApiError.SSL_REJECTED;
e.printStackTrace();
} catch (IOException e) {
m_lastError = ApiError.IO_ERROR;
e.printStackTrace();
} catch (com.google.gson.JsonSyntaxException e) {
m_lastError = ApiError.PARSE_ERROR;
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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client.close();
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return null;
}
}