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/**
* ============LICENSE_START====================================================
* org.onap.aaf
* ===========================================================================
* Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
* ===========================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
* ============LICENSE_END====================================================
*
*/
package org.onap.aaf.auth.gui;
import java.util.Enumeration;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.onap.aaf.auth.common.Define;
import org.onap.aaf.auth.env.AuthzTrans;
import org.onap.aaf.auth.rserv.HttpCode;
import org.onap.aaf.auth.rserv.HttpMethods;
import org.onap.aaf.misc.env.Slot;
public class Display {
private final Page get;
public Display(final AAF_GUI gui, final HttpMethods meth, final Page page) {
get = page;
final String[] fields = page.fields();
final Slot slots[] = new Slot[fields.length];
String prefix = page.name() + '.';
for (int i=0;i<slots.length;++i) {
slots[i] = gui.env.slot(prefix + fields[i]);
}
/*
* We handle all the "Form POST" calls here with a naming convention that allows us to create arrays from strings.
*
* On the HTTP side, elements concatenate their name with their Index number (if multiple). In this code,
* we turn such names into arrays with same index number. Then, we place them in the Transaction "Properties" so that
* it can be transferred to subclasses easily.
*/
if (meth.equals(HttpMethods.POST)) {
// Here, we'll expect FORM URL Encoded Data, which we need to get from the body
gui.route(gui.env, meth, page.url(),
new HttpCode<AuthzTrans,AAF_GUI>(gui,page.name()) {
@Override
public void handle(AuthzTrans trans, HttpServletRequest req, HttpServletResponse resp) throws Exception {
trans.put(gui.slotHttpServletRequest, req);
for (int i=0; i<fields.length;++i) {
int idx = fields[i].indexOf("[]");
if (idx<0) { // single value
trans.put(slots[i], req.getParameter(fields[i])); // assume first value
} else { // multi value - Expect Values to be set with Field root name "field.<int>" corresponding to an array of types
String field=fields[i].substring(0, idx)+'.';
String[] array = new String[16];
for (Enumeration<String> names = req.getParameterNames(); names.hasMoreElements();) {
String key = names.nextElement();
if (key.startsWith(field)) {
try {
int x = Integer.parseInt(key.substring(field.length()));
if (x>=array.length) {
String[] temp = new String[x+10];
System.arraycopy(temp, 0, temp, 0, array.length);
array = temp;
}
array[x]=req.getParameter(key);
} catch (NumberFormatException e) {
trans.debug().log(e);
}
}
}
trans.put(slots[i], array);
}
}
page.replay(context,trans,resp.getOutputStream(),"general");
}
}, "application/x-www-form-urlencoded","*/*");
} else {
// Transfer whether Page shouldn't be cached to local Final var.
final boolean noCache = page.noCache;
gui.route(gui.env, meth, page.url(),
new HttpCode<AuthzTrans,AAF_GUI>(gui,page.name()) {
@Override
public void handle(AuthzTrans trans, HttpServletRequest req, HttpServletResponse resp) throws Exception {
trans.put(gui.slotHttpServletRequest, req);
for (int i=0; i<slots.length;++i) {
int idx = fields[i].indexOf("[]");
if (idx<0) { // single value
if(asUser(trans, req,fields[i])) {
trans.put(slots[i], req.getParameter(fields[i]));
}
} else { // multi value
String[] array = new String[30];
String field=fields[i].substring(0, idx);
for (Enumeration<String> mm = req.getParameterNames();mm.hasMoreElements();) {
String key = mm.nextElement();
if (key.startsWith(field)) {
try {
int x = Integer.parseInt(key.substring(field.length()));
if (x>=array.length) {
String[] temp = new String[x+10];
System.arraycopy(temp, 0, temp, 0, array.length);
array = temp;
}
array[x]=req.getParameter(key);
} catch (NumberFormatException e) {
trans.debug().log(e);
}
}
}
trans.put(slots[i], array);
}
}
page.replay(context,trans,resp.getOutputStream(),"general");
}
/**
* When the field is "as_user", make sure permission is granted
*/
private boolean asUser(AuthzTrans trans, HttpServletRequest req, String field) {
if("as_user".equals(field)) {
return req.isUserInRole(Define.ROOT_NS()+"|access|*|*");
}
return true;
}
@Override
public boolean no_cache() {
return noCache;
}
}, "text/html","*/*");
}
}
public Page page() {
return get;
}
}
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