/**
* 将公众平台回复用户的消息加密打包.
*
* <ol>
* <li>对要发送的消息进行AES-CBC加密
* <li>生成安全签名
* <li>将消息密文和安全签名打包成xml格式
* </ol>
*
* @param replyMsg 公众平台待回复用户的消息，xml格式的字符串
* @param timeStamp 时间戳，可以自己生成，也可以用URL参数的timestamp
* @param nonce 随机串，可以自己生成，也可以用URL参数的nonce
* @return 加密后的可以直接回复用户的密文，包括msg_signature, timestamp, nonce, encrypt的xml格式的字符串
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public String encryptMsg(String replyMsg, String timeStamp, String nonce) throws AesException {
// 加密
String encrypt = encrypt(getRandomStr(), replyMsg);
// 生成安全签名
if (timeStamp == "") {
timeStamp = Long.toString(System.currentTimeMillis());
}
String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt);
// System.out.println("发送给平台的签名是: " + signature[1].toString());
// 生成发送的xml
String result = XMLParse.generate(encrypt, signature, timeStamp, nonce);
return result;
}
/**
* 检验消息的真实性，并且获取解密后的明文.
*
* <ol>
* <li>利用收到的密文生成安全签名，进行签名验证
* <li>若验证通过，则提取xml中的加密消息
* <li>对消息进行解密
* </ol>
*
* @param msgSignature 签名串，对应URL参数的msg_signature
* @param timeStamp 时间戳，对应URL参数的timestamp
* @param nonce 随机串，对应URL参数的nonce
* @param postData 密文，对应POST请求的数据
* @return 解密后的原文
* @throws AesException 执行失败，请查看该异常的错误码和具体的错误信息
*/
public String decryptMsg(String msgSignature, String timeStamp, String nonce, String postData)
throws AesException {
// 密钥，公众账号的app secret
// 提取密文
Object[] encrypt = XMLParse.extract(postData);
// 验证安全签名
String signature = SHA1.getSHA1(token, timeStamp, nonce, encrypt[1].toString());
// 和URL中的签名比较是否相等
// System.out.println("第三方收到URL中的签名：" + msg_sign);
// System.out.println("第三方校验签名：" + signature);
if (!signature.equals(msgSignature)) {
throw new AesException(AesException.ValidateSignatureError);
}
// 解密
String result = decrypt(encrypt[1].toString());
return result;
}
public ArrayList<String> getCommandType(String command) throws IOException, InterruptedException {
XMLParse xP = new XMLParse();
xP.xMLParser("/invXMLs/commands");
ArrayList<String> typeOfCommand = new ArrayList<String>();
for (int x = 0; x < xP.getTMMat().size(); x++) {
try {
if (typeOfCommand.isEmpty() == false) {
break;
}
} catch (NullPointerException npe) {
}
if (xP.getTStrD().contains(command)) {
if (xP.getTStrD().get(x).equalsIgnoreCase(command)) {
try {
if (typeOfCommand.isEmpty() == false) {
break;
}
} catch (NullPointerException npe) {
}
int x2 = x;
if (xP.getTStrD().get(xP.getTMMat().get(x2)).equalsIgnoreCase(command)) {
} else {
do {
x2++;
} while ((xP.getTStrD().get(xP.getTMMat().get(x2)).equalsIgnoreCase(command) == false));
}
int y = x2;
do {
if (xP.getMarkerID().get(y).equalsIgnoreCase("type")) {
try {
if (xP.getMarkerData().get(y).equals(null)) {
break;
} else {
if (xP.getMarkerData().get(y).contains("_")) {
StringTokenizer st = new StringTokenizer(xP.getMarkerData().get((y)));
while (st.hasMoreTokens()) {
try {
typeOfCommand.add(st.nextToken("_"));
} catch (NullPointerException npe) {
break;
}
}
} else {
typeOfCommand.add(xP.getMarkerData().get((y)));
}
}
} catch (NullPointerException npe) {
break;
}
}
try {
if (typeOfCommand.isEmpty() == false) {
break;
}
} catch (NullPointerException npe) {
}
y++;
} while (xP.getTStrD().get(xP.getTMMat().get(y)).equalsIgnoreCase(command));
}
} else {
break;
}
}
return typeOfCommand;
}
public String setToLinkingToUse(ArrayList<String> commandTypes, ArrayList<String> toLinkings)
throws IOException, InterruptedException {
RanGen rG = new RanGen();
XMLParse xP = new XMLParse();
xP.xMLParser("/invXMLs/toTarLinking");
ArrayList<String> useableLinkings = new ArrayList<String>();
String linkingToUse = null;
for (int x = 0; x < xP.getTStrD().size(); x++) {
for (int y = 0; y < toLinkings.size(); y++) {
if (xP.getTStrD().get(x).equalsIgnoreCase(toLinkings.get(y))) {
int x2 = x;
while (xP.getTStrD().get(xP.getTMMat().get(x2)).equalsIgnoreCase(toLinkings.get(y))
== false) {
x2++;
}
int z = x2;
do {
if (xP.getMarkerID().get(z).equalsIgnoreCase("type")) {
if (xP.getMarkerData().get(z).contains("_")) {
StringTokenizer st = new StringTokenizer(xP.getMarkerData().get(z));
String toCheck;
while (st.hasMoreTokens()) {
toCheck = st.nextToken("_");
if (commandTypes.contains(toCheck)) {
useableLinkings.add(toLinkings.get(y));
}
try {
if (st.hasMoreTokens() == false) {
break;
}
} catch (Exception e) {
break;
}
}
} else {
if (commandTypes.contains(xP.getMarkerData().get(z))) {
useableLinkings.add(toLinkings.get(y));
}
}
}
z++;
} while (xP.getTStrD().get(xP.getTMMat().get(z)).equalsIgnoreCase(toLinkings.get(y)));
}
}
}
if (useableLinkings.size() > 1) {
rG.setRanNum(useableLinkings.size());
linkingToUse = useableLinkings.get(rG.getRanNum());
} else {
linkingToUse = useableLinkings.get(0);
}
return linkingToUse;
}