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Fix MyFreeCams websocket message parsing

This commit is contained in:
0xboobface 2020-07-03 18:56:59 +02:00
parent 4205cb6ff2
commit d2c2cb476b
1 changed files with 6 additions and 4 deletions
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10
common/src/main/java/ctbrec/sites/mfc/MyFreeCamsClient.java
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@ -455,17 +455,19 @@ public class MyFreeCamsClient {
} }
private Message parseMessage(StringBuilder msgBuffer) throws UnsupportedEncodingException { private Message parseMessage(StringBuilder msgBuffer) throws UnsupportedEncodingException {
if (msgBuffer.length() < 4) { int packetLengthBytes = 6;
if (msgBuffer.length() < packetLengthBytes) {
// packet size not transmitted completely // packet size not transmitted completely
return null; return null;
} else { } else {
try { try {
int packetLength = Integer.parseInt(msgBuffer.substring(0, 4)); int packetLength = Integer.parseInt(msgBuffer.substring(0, packetLengthBytes));
if (packetLength > msgBuffer.length() - 4) { if (packetLength > msgBuffer.length() - packetLengthBytes) {
// packet not complete // packet not complete
return null; return null;
} else { } else {
msgBuffer.delete(0, 4); LOG.trace("<-- {}", msgBuffer);
msgBuffer.delete(0, packetLengthBytes);
StringBuilder rawMessage = new StringBuilder(msgBuffer.substring(0, packetLength)); StringBuilder rawMessage = new StringBuilder(msgBuffer.substring(0, packetLength));
int type = parseNextInt(rawMessage); int type = parseNextInt(rawMessage);
int sender = parseNextInt(rawMessage); int sender = parseNextInt(rawMessage);