/*
HTTP stub server written in Java with embedded Jetty
Copyright (C) 2012 Alexander Zagniotov, Isa Goksu and Eric Mrak
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package by.stub.handlers;
import by.stub.annotations.VisibleForTesting;
import by.stub.database.StubbedDataManager;
import by.stub.javax.servlet.http.HttpServletResponseWithGetStatus;
import by.stub.utils.ConsoleUtils;
import by.stub.utils.HandlerUtils;
import by.stub.utils.ObjectUtils;
import by.stub.yaml.stubs.StubHttpLifecycle;
import by.stub.yaml.stubs.StubTypes;
import org.eclipse.jetty.http.HttpStatus;
import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.regex.Pattern;
public class AjaxResourceContentHandler extends AbstractHandler {
private static final Pattern REGEX_REQUEST = Pattern.compile("^(request)$");
private static final Pattern REGEX_RESPONSE = Pattern.compile("^(response)$");
private static final Pattern REGEX_HTTPLIFECYCLE = Pattern.compile("^(httplifecycle)$");
private static final Pattern REGEX_NUMERIC = Pattern.compile("^[0-9]+$");
private static final String POPUP_HTML_TEMPLATE = HandlerUtils.getHtmlResourceByName("_popup_generic");
private final StubbedDataManager stubbedDataManager;
public AjaxResourceContentHandler(final StubbedDataManager stubbedDataManager) {
this.stubbedDataManager = stubbedDataManager;
}
@Override
public void handle(final String target, final Request baseRequest, final HttpServletRequest request, final HttpServletResponse response) throws IOException, ServletException {
ConsoleUtils.logIncomingRequest(request);
baseRequest.setHandled(true);
final HttpServletResponseWithGetStatus wrapper = new HttpServletResponseWithGetStatus(response);
HandlerUtils.setResponseMainHeaders(wrapper);
wrapper.setContentType(MimeTypes.TEXT_PLAIN_UTF_8);
wrapper.setStatus(HttpStatus.OK_200);
final String[] uriFragments = request.getRequestURI().split("/");
final int urlFragmentsLength = uriFragments.length;
final String targetFieldName = uriFragments[urlFragmentsLength - 1];
final String stubType = uriFragments[urlFragmentsLength - 2];
if (REGEX_NUMERIC.matcher(stubType).matches()) {
final int sequencedResponseId = Integer.parseInt(stubType);
final int stubHttpCycleIndex = Integer.parseInt(uriFragments[urlFragmentsLength - 4]);
final StubHttpLifecycle foundStubHttpLifecycle = throwErrorOnNonexistentResourceIndex(wrapper, stubHttpCycleIndex);
renderAjaxResponseContent(wrapper, sequencedResponseId, targetFieldName, foundStubHttpLifecycle);
} else {
final int stubHttpCycleIndex = Integer.parseInt(uriFragments[urlFragmentsLength - 3]);
final StubHttpLifecycle foundStubHttpLifecycle = throwErrorOnNonexistentResourceIndex(wrapper, stubHttpCycleIndex);
if (REGEX_REQUEST.matcher(stubType).matches()) {
renderAjaxResponseContent(wrapper, StubTypes.REQUEST, targetFieldName, foundStubHttpLifecycle);
} else if (REGEX_RESPONSE.matcher(stubType).matches()) {
renderAjaxResponseContent(wrapper, StubTypes.RESPONSE, targetFieldName, foundStubHttpLifecycle);
} else if (REGEX_HTTPLIFECYCLE.matcher(stubType).matches()) {
renderAjaxResponseContent(wrapper, StubTypes.HTTPLIFECYCLE, targetFieldName, foundStubHttpLifecycle);
} else {
wrapper.getWriter().println(String.format("Could not fetch the content for stub type: %s", stubType));
}
}
ConsoleUtils.logOutgoingResponse(request.getRequestURI(), wrapper);
}
@VisibleForTesting
void renderAjaxResponseContent(final HttpServletResponseWithGetStatus wrapper, final StubTypes stubType, final String targetFieldName, final StubHttpLifecycle foundStubHttpLifecycle) throws IOException {
try {
final String ajaxResponse = foundStubHttpLifecycle.getAjaxResponseContent(stubType, targetFieldName);
final String htmlPopup = String.format(POPUP_HTML_TEMPLATE, foundStubHttpLifecycle.getResourceId(), targetFieldName, ajaxResponse);
wrapper.getWriter().println(htmlPopup);
} catch (final Exception ex) {
HandlerUtils.configureErrorResponse(wrapper, HttpStatus.INTERNAL_SERVER_ERROR_500, ex.toString());
}
}
@VisibleForTesting
void renderAjaxResponseContent(final HttpServletResponseWithGetStatus wrapper, final int sequencedResponseId, final String targetFieldName, final StubHttpLifecycle foundStubHttpLifecycle) throws IOException {
try {
final String ajaxResponse = foundStubHttpLifecycle.getAjaxResponseContent(targetFieldName, sequencedResponseId);
final String htmlPopup = String.format(POPUP_HTML_TEMPLATE, foundStubHttpLifecycle.getResourceId(), targetFieldName, ajaxResponse);
wrapper.getWriter().println(htmlPopup);
} catch (final Exception ex) {
HandlerUtils.configureErrorResponse(wrapper, HttpStatus.INTERNAL_SERVER_ERROR_500, ex.toString());
}
}
@VisibleForTesting
StubHttpLifecycle throwErrorOnNonexistentResourceIndex(final HttpServletResponseWithGetStatus wrapper, final int stubHttpCycleIndex) throws IOException {
final StubHttpLifecycle foundStubHttpLifecycle = stubbedDataManager.getMatchedStubHttpLifecycle(stubHttpCycleIndex);
if (ObjectUtils.isNull(foundStubHttpLifecycle)) {
wrapper.getWriter().println("Resource does not exist for ID: " + stubHttpCycleIndex);
}
return foundStubHttpLifecycle;
}
}