* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0; * you may not use this file except in compliance with the License. * You may obtain a copy of the License at *
* http://www.gnu.org/licenses/lgpl.html *
* Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.fujieid.jap.ids.endpoint; import com.fujieid.jap.core.util.RequestUtil; import com.fujieid.jap.ids.model.enums.ErrorResponse; import com.xkcoding.json.util.StringUtil; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.nio.charset.StandardCharsets; /** * OAuth 异常 * * @author yadong.zhang (yadong.zhang0415(a)gmail.com) * @version 1.0.0 * @since 1.0.0 */ public class ErrorEndpoint extends AbstractEndpoint { /** * Generate the html of the error authorization page * * @param error error type * @param errorDescription error description * @return error page html */ public String createErrorPageHtml(String error, String errorDescription) { return generateErrorPageHtml(error, errorDescription); } /** * Obtain exception information from the request url and display the exception page * * @param request current HTTP request * @param response current HTTP response * @throws IOException IOException */ public void showErrorPage(HttpServletRequest request, HttpServletResponse response) throws IOException { ErrorResponse errorResponse = ErrorResponse.getByError(RequestUtil.getParam("error", request)); String errorPageHtml = createErrorPageHtml(errorResponse.getError(), errorResponse.getErrorDescription()); response.setContentType("text/html;charset=UTF-8"); response.setContentLength(errorPageHtml.getBytes(StandardCharsets.UTF_8).length); response.getWriter().write(errorPageHtml); } /** * Display customized exception content * * @param error error type * @param errorDescription error description * @param response current HTTP response * @throws IOException IOException */ public void showErrorPage(String error, String errorDescription, HttpServletResponse response) throws IOException { String errorPageHtml = createErrorPageHtml(error, errorDescription); response.setContentType("text/html;charset=UTF-8"); response.setContentLength(errorPageHtml.getBytes(StandardCharsets.UTF_8).length); response.getWriter().write(errorPageHtml); } private String generateErrorPageHtml(String error, String errorDescription) { String html = "\n" + "\n" + "
\n" + " \n" + " \n" + " \n" + " \n" + "" + error + "
"; } html += "\n" + errorDescription + "
\n" + "Feel free to contact us.
\n" + "Please try again.
\n" + "