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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.validation;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import org.onap.aaf.auth.layer.Result;
public class Validator {
private static final String ESSENTIAL = "\\x25\\x28\\x29\\x2C-\\x2E\\x30-\\x39\\x3D\\x40-\\x5A\\x5F\\x61-\\x7A";
private static final Pattern ESSENTIAL_CHARS = Pattern.compile("["+ESSENTIAL+"]+");
public static final Pattern ACTION_CHARS = Pattern.compile(
"["+ESSENTIAL+"]+" + // All AlphaNumeric+
"|\\*" // Just Star
);
public static final Pattern INST_CHARS = Pattern.compile(
"["+ESSENTIAL+"]+[\\*]*" + // All AlphaNumeric+ possibly ending with *
"|\\*" + // Just Star
"|(([:/]\\*)|([:/][!]{0,1}["+ESSENTIAL+"]+[\\*]*[:/]*))+" // Key :asdf:*:sdf*:sdk
);
public static final Pattern ID_CHARS = Pattern.compile("[\\w.-]+@[\\w.-]+");
public static final Pattern NAME_CHARS = Pattern.compile("[\\w.-]+");
public static final Pattern DESC_CHAR = Pattern.compile("["+ESSENTIAL+"\\x20]+");
protected static List<String> nsKeywords;
private final Pattern actionChars;
private final Pattern instChars;
private StringBuilder msgs;
static {
nsKeywords = new ArrayList<>();
nsKeywords.add(".access");
nsKeywords.add(".owner");
nsKeywords.add(".admin");
nsKeywords.add(".member");
nsKeywords.add(".perm");
nsKeywords.add(".role");
nsKeywords.add(".ns");
nsKeywords.add(".cred");
}
public Validator() {
actionChars = ACTION_CHARS;
instChars = INST_CHARS;
}
public final String errs() {
return msgs.toString();
}
public final Validator nullOrBlank(String name, String str) {
if (str==null) {
msg(name + " is null.");
} else if (str.length()==0) {
msg(name + " is blank.");
}
return this;
}
public final Validator isNull(String name, Object o) {
if (o==null) {
msg(name + " is null.");
}
return this;
}
protected final boolean noMatch(String str, Pattern p) {
return str==null || !p.matcher(str).matches();
}
protected final void match(String text, String str, Pattern p) {
if(str==null || !p.matcher(str).matches()) {
msg(text);
}
}
protected final boolean nob(String str, Pattern p) {
return str==null || !p.matcher(str).matches();
}
protected final void msg(String ... strs) {
if (msgs==null) {
msgs=new StringBuilder();
}
for (String str : strs) {
msgs.append(str);
}
msgs.append('\n');
}
public final boolean err() {
return msgs!=null;
}
public final Validator notOK(Result<?> res) {
if (res==null) {
msgs.append("Result object is blank");
} else if (res.notOK()) {
msgs.append(res.getClass().getSimpleName()).append(" is not OK");
}
return this;
}
protected Validator intRange(String text, int target, int start, int end) {
if (target<start || target>end) {
msg(text + " is out of range (" + start + '-' + end + ')');
}
return this;
}
protected Validator floatRange(String text, float target, float start, float end) {
if (target<start || target>end) {
msg(text + " is out of range (" + start + '-' + end + ')');
}
return this;
}
protected Validator description(String type, String description) {
if (description != null && noMatch(description, DESC_CHAR)) {
msg(type + " Description is invalid.");
}
return this;
}
public final Validator permType(String type) {
if (nob(type,NAME_CHARS)) {
msg("Perm Type [" +type + "] is invalid.");
}
return this;
}
public final Validator permTypeWithUser(String user, String type) {
if (type==null) {
msg("Perm Type is null");
} else if (user==null) {
msg("User is null");
} else {
if(!(type.startsWith(user) && type.endsWith(":id"))) {
if(nob(type,NAME_CHARS)) {
msg("Perm Type [" + type + "] is invalid.");
}
}
}
return this;
}
public final Validator permType(String type, String ns) {
if (type==null) {
msg("Perm Type is null");
} else if (ns==null) {
msg("Perm NS is null");
} else if (nob(type,NAME_CHARS)) {
msg("Perm Type [" + (ns+(type.length()==0?"":'.')) + type + "] is invalid.");
}
return this;
}
public final Validator permInstance(String instance) {
if(!"/".equals(instance) && nob(instance,instChars)) {
msg("Perm Instance [" + instance + "] is invalid.");
}
return this;
}
public final Validator permAction(String action) {
// TODO check for correct Splits? Type|Instance|Action ?
if (nob(action, actionChars)) {
msg("Perm Action [" + action + "] is invalid.");
}
return this;
}
public final Validator role(String user, String role) {
boolean quit = false;
if(role==null) {
msg("Role is null");
quit = true;
}
if(user==null) {
msg("User is null");
quit = true;
}
if(!quit) {
if(role.startsWith(user) && role.endsWith(":user")) {
if(!(role.length() == user.length() + 5)) {
msg("Role [" + role + "] is invalid.");
}
} else if (nob(role, NAME_CHARS)) {
msg("Role [" + role + "] is invalid.");
}
}
return this;
}
public final Validator role(String role) {
if (nob(role, NAME_CHARS)) {
msg("Role [" + role + "] is invalid.");
}
return this;
}
public final Validator ns(String ns) {
if (ns==null) {
msg("NS is null");
return this;
} else if (nob(ns,NAME_CHARS)) {
msg("NS [" + ns + "] is invalid.");
}
for (String s : nsKeywords) {
if (ns.endsWith(s)) {
msg("NS [" + ns + "] may not be named with NS keywords");
break;
}
}
return this;
}
public final Validator key(String key) {
if (nob(key,NAME_CHARS)) {
msg("NS Prop Key [" + key + "] is invalid");
}
return this;
}
public final Validator value(String value) {
if (nob(value,ESSENTIAL_CHARS)) {
msg("NS Prop value [" + value + "] is invalid");
}
return this;
}
}
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