improve error handling by ApiRequest
This commit is contained in:
parent
9d0a0426fd
commit
9a4c7a2ce8
@ -23,9 +23,6 @@
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<string name="theme_light">Light</string>
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<string name="connection">Connection</string>
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<string name="http_authentication">HTTP Authentication</string>
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<string name="login_api_disabled">Login failed: API disabled.</string>
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<string name="login_no_data">Login failed: no data received.</string>
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<string name="login_wrong_password">Login failed: username or password incorrect.</string>
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<string name="login_success">Logged in.</string>
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<string name="no_unread_feeds">No unread feeds.</string>
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<string name="no_unread_headlines">No unread headlines.</string>
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@ -35,15 +32,11 @@
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<string name="update_feeds">Refresh feeds</string>
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<string name="close_article">Close article</string>
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<string name="share_article">Share article</string>
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<string name="could_not_decode_content">Could not decode content (UnsupportedEncodingException)</string>
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<string name="sort_feeds_by_unread">Sort feeds by unread count</string>
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<string name="load_more_articles">Load more...</string>
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<string name="show_all_articles">Show all articles</string>
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<string name="show_unread_articles">Show unread articles</string>
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<string name="ssl_trust_any">Accept any SSL certificate</string>
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<string name="error_no_data">Error: no data received.</string>
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<string name="error_no_feeds">No feeds to display.</string>
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<string name="error_invalid_object">Error: invalid object received.</string>
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<string name="blank"></string>
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<string name="transport_debugging">Log sent and received data</string>
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<string name="toggle_marked">Toggle starred</string>
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@ -57,4 +50,24 @@
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<string name="download_feed_icons">Download and display feed icons</string>
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<string name="enable_cats">Enable feed categories</string>
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<string name="back_to_categories">Close category</string>
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<string name="no_feeds_to_display">No feeds to display</string>
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<string name="no_headlines_to_display">No headlines to display</string>
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<string name="error_template">Error: %1$s</string>
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<string name="error_no_error">No error</string>
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<string name="error_unknown">Error: Unknown error (see log)</string>
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<string name="error_http_unauthorized">Error: 401 unauthorized</string>
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<string name="error_http_forbidden">Error: 403 forbidden</string>
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<string name="error_http_not_found">Error: 404 not found</string>
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<string name="error_http_server_error">Error: 500 server error</string>
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<string name="error_http_other_error">Error: other HTTP error (see log)</string>
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<string name="error_ssl_rejected">Error: SSL certificate rejected</string>
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<string name="error_parse_error">Error: JSON parse failed</string>
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<string name="error_io_error">Error: I/O failure (server down?)</string>
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<string name="error_other_error">Error: unknown error (see log)</string>
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<string name="error_api_disabled">Error: API disabled for this user</string>
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<string name="error_api_unknown">Error: unknown API error (see log)</string>
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<string name="error_login_failed">Error: username or password incorrect</string>
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</resources>
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@ -1,6 +1,7 @@
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package org.fox.ttrss;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.MalformedURLException;
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@ -29,21 +30,27 @@ 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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protected static final int STATUS_LOGIN_FAILED = 0;
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protected static final int STATUS_OK = 1;
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protected static final int STATUS_API_DISABLED = 2;
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protected static final int STATUS_OTHER_ERROR = 3;
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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, PARSE_ERROR, IO_ERROR, OTHER_ERROR, API_DISABLED, API_UNKNOWN, LOGIN_FAILED };
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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_trustAny = false;
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private boolean m_transportDebugging = false;
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protected int m_httpStatusCode = 0;
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protected int m_apiStatusCode = 0;
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private 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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@ -53,6 +60,42 @@ public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonE
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m_api = m_prefs.getString("ttrss_url", null);
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m_trustAny = m_prefs.getBoolean("ssl_trust_any", false);
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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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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 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 LOGIN_FAILED:
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return R.string.error_login_failed;
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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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@ -106,25 +149,77 @@ public class ApiRequest extends AsyncTask<HashMap<String,String>, Integer, JsonE
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httpPost.setEntity(new StringEntity(requestStr, "utf-8"));
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HttpResponse execute = client.execute(httpPost);
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InputStream content = execute.getEntity().getContent();
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m_httpStatusCode = execute.getStatusLine().getStatusCode();
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BufferedReader buffer = new BufferedReader(
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new InputStreamReader(content), 8192);
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String s = "";
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String response = "";
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while ((s = buffer.readLine()) != null) {
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response += s;
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switch (m_httpStatusCode) {
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case 200:
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InputStream content = execute.getEntity().getContent();
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BufferedReader buffer = new BufferedReader(
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new InputStreamReader(content), 8192);
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String s = "";
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String response = "";
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while ((s = buffer.readLine()) != null) {
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response += s;
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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);
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JsonObject resultObj = result.getAsJsonObject();
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m_apiStatusCode = resultObj.get("status").getAsInt();
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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.LOGIN_FAILED;
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} else {
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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 401:
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m_lastError = ApiError.HTTP_UNAUTHORIZED;
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break;
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case 403:
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m_lastError = ApiError.HTTP_FORBIDDEN;
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break;
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case 404:
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m_lastError = ApiError.HTTP_NOT_FOUND;
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break;
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case 500:
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m_lastError = ApiError.HTTP_SERVER_ERROR;
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break;
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default:
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m_lastError = ApiError.HTTP_OTHER_ERROR;
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break;
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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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return parser.parse(response);
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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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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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@ -94,31 +94,25 @@ public class ArticleFragment extends Fragment implements OnClickListener {
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// this is ridiculous
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// TODO white on black style for dark theme
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String content;
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try {
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String cssOverride = "";
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if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
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web.setBackgroundColor(android.R.color.black);
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cssOverride = "body { background : black; color : #f0f0f0}\n";
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}
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content =
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"<html>" +
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"<head>" +
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"<meta content=\"text/html; charset=utf-8\" http-equiv=\"content-type\">" +
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"<style type=\"text/css\">" +
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cssOverride +
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"img { max-width : 90%; }" +
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"body { text-align : justify; }" +
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"</style>" +
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"</head>" +
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"<body>" + m_article.content + "</body></html>";
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} catch (Exception e) {
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content = getString(R.string.could_not_decode_content);
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e.printStackTrace();
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String cssOverride = "";
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if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
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web.setBackgroundColor(android.R.color.black);
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cssOverride = "body { background : black; color : #f0f0f0}\n";
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}
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content =
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"<html>" +
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"<head>" +
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"<meta content=\"text/html; charset=utf-8\" http-equiv=\"content-type\">" +
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"<style type=\"text/css\">" +
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cssOverride +
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"img { max-width : 90%; }" +
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"body { text-align : justify; }" +
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"</style>" +
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"</head>" +
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"<body>" + m_article.content + "</body></html>";
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web.loadDataWithBaseURL(null, content, "text/html", "utf-8", null);
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if (activity.isSmallScreen())
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@ -14,6 +14,7 @@ import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
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import android.os.Bundle;
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import android.preference.PreferenceManager;
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import android.support.v4.app.Fragment;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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@ -162,52 +163,43 @@ public class FeedCategoriesFragment extends Fragment implements OnItemClickListe
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public CatsRequest(Context context) {
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super(context);
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}
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protected void onPostExecute(JsonElement result) {
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if (result != null) {
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try {
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JsonObject rv = result.getAsJsonObject();
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Gson gson = new Gson();
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int status = rv.get("status").getAsInt();
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if (status == 0) {
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JsonArray content = rv.get("content").getAsJsonArray();
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if (content != null) {
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Type listType = new TypeToken<List<FeedCategory>>() {}.getType();
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final List<FeedCategory> cats = gson.fromJson(content, listType);
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m_cats.clear();
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for (FeedCategory c : cats)
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m_cats.add(c);
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sortCats();
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if (m_cats.size() == 0)
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setLoadingStatus(R.string.error_no_feeds, false);
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else
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setLoadingStatus(R.string.blank, false);
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}
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} else {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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JsonArray content = result.getAsJsonArray();
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if (content != null) {
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Type listType = new TypeToken<List<FeedCategory>>() {}.getType();
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final List<FeedCategory> cats = new Gson().fromJson(content, listType);
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m_cats.clear();
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for (FeedCategory c : cats)
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m_cats.add(c);
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sortCats();
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if (m_cats.size() == 0)
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setLoadingStatus(R.string.no_feeds_to_display, false);
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else
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setLoadingStatus(R.string.blank, false);
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return;
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}
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} catch (Exception e) {
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e.printStackTrace();
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setLoadingStatus(R.string.error_invalid_object, false);
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// report invalid object received
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e.printStackTrace();
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}
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} else {
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// report null object received, unless we've been awakened from sleep right in the right time
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// so that current request failed
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if (m_cats.size() == 0) setLoadingStatus(R.string.error_no_data, false);
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}
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return;
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}
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if (m_lastError == ApiError.LOGIN_FAILED) {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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} else {
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setLoadingStatus(getErrorMessage(), false);
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}
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}
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}
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public void sortCats() {
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@ -51,7 +51,6 @@ import android.widget.TextView;
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import com.google.gson.Gson;
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import com.google.gson.JsonArray;
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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.reflect.TypeToken;
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public class FeedsFragment extends Fragment implements OnItemClickListener, OnSharedPreferenceChangeListener {
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@ -220,7 +219,7 @@ public class FeedsFragment extends Fragment implements OnItemClickListener, OnSh
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if (result != null) {
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try {
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JsonElement iconsUrl = result.getAsJsonObject().get("content").getAsJsonObject().get("icons_dir");
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JsonElement iconsUrl = result.getAsJsonObject().get("icons_dir");
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if (iconsUrl != null) {
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String iconsStr = iconsUrl.getAsString();
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@ -261,54 +260,45 @@ public class FeedsFragment extends Fragment implements OnItemClickListener, OnSh
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public FeedsRequest(Context context) {
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super(context);
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}
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protected void onPostExecute(JsonElement result) {
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if (result != null) {
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try {
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JsonObject rv = result.getAsJsonObject();
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JsonArray content = result.getAsJsonArray();
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if (content != null) {
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Gson gson = new Gson();
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int status = rv.get("status").getAsInt();
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if (status == 0) {
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JsonArray content = rv.get("content").getAsJsonArray();
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if (content != null) {
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Type listType = new TypeToken<List<Feed>>() {}.getType();
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final List<Feed> feeds = gson.fromJson(content, listType);
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m_feeds.clear();
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for (Feed f : feeds)
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if (f.id > -10) // skip labels for now
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m_feeds.add(f);
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sortFeeds();
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if (m_feeds.size() == 0)
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setLoadingStatus(R.string.error_no_feeds, false);
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else
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setLoadingStatus(R.string.blank, false);
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Type listType = new TypeToken<List<Feed>>() {}.getType();
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final List<Feed> feeds = new Gson().fromJson(content, listType);
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m_feeds.clear();
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for (Feed f : feeds)
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if (f.id > -10) // skip labels for now
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m_feeds.add(f);
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sortFeeds();
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if (m_feeds.size() == 0)
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setLoadingStatus(R.string.no_feeds_to_display, false);
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else
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setLoadingStatus(R.string.blank, false);
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if (m_enableFeedIcons) getFeedIcons();
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}
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} else {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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if (m_enableFeedIcons) getFeedIcons();
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return;
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}
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} catch (Exception e) {
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e.printStackTrace();
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setLoadingStatus(R.string.error_invalid_object, false);
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// report invalid object received
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e.printStackTrace();
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}
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} else {
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// report null object received, unless we've been awakened from sleep right in the right time
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// so that current request failed
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if (m_feeds.size() == 0) setLoadingStatus(R.string.error_no_data, false);
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}
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return;
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if (m_lastError == ApiError.LOGIN_FAILED) {
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MainActivity activity = (MainActivity)getActivity();
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activity.login();
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} else {
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setLoadingStatus(getErrorMessage(), false);
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}
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}
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}
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|
||||
|
@ -34,7 +34,6 @@ import android.widget.TextView;
|
||||
import com.google.gson.Gson;
|
||||
import com.google.gson.JsonArray;
|
||||
import com.google.gson.JsonElement;
|
||||
import com.google.gson.JsonObject;
|
||||
import com.google.gson.reflect.TypeToken;
|
||||
|
||||
public class HeadlinesFragment extends Fragment implements OnItemClickListener {
|
||||
@ -174,54 +173,50 @@ public class HeadlinesFragment extends Fragment implements OnItemClickListener {
|
||||
protected void onPostExecute(JsonElement result) {
|
||||
if (result != null) {
|
||||
try {
|
||||
JsonObject rv = result.getAsJsonObject();
|
||||
|
||||
Gson gson = new Gson();
|
||||
|
||||
int status = rv.get("status").getAsInt();
|
||||
|
||||
if (status == 0) {
|
||||
JsonArray content = rv.get("content").getAsJsonArray();
|
||||
if (content != null) {
|
||||
Type listType = new TypeToken<List<Article>>() {}.getType();
|
||||
final List<Article> articles = gson.fromJson(content, listType);
|
||||
|
||||
if (m_offset == 0)
|
||||
m_articles.clear();
|
||||
|
||||
int last_position = m_articles.size();
|
||||
|
||||
for (Article f : articles)
|
||||
m_articles.add(f);
|
||||
|
||||
m_adapter.notifyDataSetChanged();
|
||||
|
||||
ListView list = (ListView)getView().findViewById(R.id.headlines);
|
||||
|
||||
if (list != null && m_offset != 0) {
|
||||
list.setSelection(last_position+1);
|
||||
}
|
||||
|
||||
MainActivity activity = (MainActivity)getActivity();
|
||||
activity.setCanLoadMore(articles.size() >= 30);
|
||||
activity.initMainMenu();
|
||||
|
||||
setLoadingStatus(R.string.blank, false);
|
||||
JsonArray content = result.getAsJsonArray();
|
||||
if (content != null) {
|
||||
Type listType = new TypeToken<List<Article>>() {}.getType();
|
||||
final List<Article> articles = new Gson().fromJson(content, listType);
|
||||
|
||||
if (m_offset == 0)
|
||||
m_articles.clear();
|
||||
|
||||
int last_position = m_articles.size();
|
||||
|
||||
for (Article f : articles)
|
||||
m_articles.add(f);
|
||||
|
||||
m_adapter.notifyDataSetChanged();
|
||||
|
||||
ListView list = (ListView)getView().findViewById(R.id.headlines);
|
||||
|
||||
if (list != null && m_offset != 0) {
|
||||
list.setSelection(last_position+1);
|
||||
}
|
||||
} else {
|
||||
MainActivity activity = (MainActivity)getActivity();
|
||||
activity.login();
|
||||
}
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
setLoadingStatus(R.string.error_invalid_object, false);
|
||||
}
|
||||
} else {
|
||||
setLoadingStatus(R.string.error_no_data, false);
|
||||
}
|
||||
|
||||
return;
|
||||
|
||||
MainActivity activity = (MainActivity)getActivity();
|
||||
activity.setCanLoadMore(articles.size() >= 30);
|
||||
activity.initMainMenu();
|
||||
|
||||
if (m_articles.size() == 0)
|
||||
setLoadingStatus(R.string.no_headlines_to_display, false);
|
||||
else
|
||||
setLoadingStatus(R.string.blank, false);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
if (m_lastError == ApiError.LOGIN_FAILED) {
|
||||
MainActivity activity = (MainActivity)getActivity();
|
||||
activity.login();
|
||||
} else {
|
||||
setLoadingStatus(getErrorMessage(), false);
|
||||
}
|
||||
}
|
||||
|
||||
public void setOffset(int skip) {
|
||||
|
@ -633,60 +633,41 @@ public class MainActivity extends FragmentActivity implements FeedsFragment.OnFe
|
||||
protected void onPostExecute(JsonElement result) {
|
||||
if (result != null) {
|
||||
try {
|
||||
JsonObject rv = result.getAsJsonObject();
|
||||
|
||||
int status = rv.get("status").getAsInt();
|
||||
|
||||
if (status == 0) {
|
||||
JsonObject content = rv.get("content").getAsJsonObject();
|
||||
if (content != null) {
|
||||
m_sessionId = content.get("session_id").getAsString();
|
||||
|
||||
Log.d(TAG, "Authenticated!");
|
||||
|
||||
setLoadingStatus(R.string.loading_message, true);
|
||||
|
||||
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
|
||||
|
||||
if (m_enableCats) {
|
||||
FeedCategoriesFragment frag = new FeedCategoriesFragment();
|
||||
ft.replace(R.id.cats_fragment, frag);
|
||||
} else {
|
||||
FeedsFragment frag = new FeedsFragment();
|
||||
ft.replace(R.id.feeds_fragment, frag);
|
||||
}
|
||||
|
||||
ft.commit();
|
||||
|
||||
loginSuccess();
|
||||
|
||||
}
|
||||
} else {
|
||||
JsonObject content = rv.get("content").getAsJsonObject();
|
||||
JsonObject content = result.getAsJsonObject();
|
||||
if (content != null) {
|
||||
m_sessionId = content.get("session_id").getAsString();
|
||||
|
||||
if (content != null) {
|
||||
String error = content.get("error").getAsString();
|
||||
Log.d(TAG, "Authenticated!");
|
||||
|
||||
setLoadingStatus(R.string.loading_message, true);
|
||||
|
||||
m_sessionId = null;
|
||||
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
|
||||
|
||||
if (m_enableCats) {
|
||||
FeedCategoriesFragment frag = new FeedCategoriesFragment();
|
||||
ft.replace(R.id.cats_fragment, frag);
|
||||
} else {
|
||||
FeedsFragment frag = new FeedsFragment();
|
||||
ft.replace(R.id.feeds_fragment, frag);
|
||||
}
|
||||
|
||||
if (error.equals("LOGIN_ERROR")) {
|
||||
setLoadingStatus(R.string.login_wrong_password, false);
|
||||
} else if (error.equals("API_DISABLED")) {
|
||||
setLoadingStatus(R.string.login_api_disabled, false);
|
||||
} else {
|
||||
setLoadingStatus(R.string.login_failed, false);
|
||||
}
|
||||
|
||||
m_menu.findItem(R.id.login).setVisible(true);
|
||||
}
|
||||
ft.commit();
|
||||
|
||||
loginSuccess();
|
||||
return;
|
||||
}
|
||||
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
} else {
|
||||
setLoadingStatus(R.string.login_no_data, false);
|
||||
}
|
||||
|
||||
m_sessionId = null;
|
||||
|
||||
setLoadingStatus(getErrorMessage(), false);
|
||||
m_menu.findItem(R.id.login).setVisible(true);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
|
Loading…
Reference in New Issue
Block a user