/** Parse host. */
static void parseHost(
final DataChunk hostDC, final DataChunk serverNameDC, final HttpRequestPacket request) {
if (hostDC == null) {
// HTTP/1.0
// Default is what the socket tells us. Overriden if a host is
// found/parsed
request.setServerPort(request.getLocalPort());
serverNameDC.setString(request.getLocalName());
return;
}
final BufferChunk valueBC = hostDC.getBufferChunk();
final int valueS = valueBC.getStart();
final int valueL = valueBC.getEnd() - valueS;
int colonPos = -1;
final Buffer valueB = valueBC.getBuffer();
final boolean ipv6 = (valueB.get(valueS) == '[');
boolean bracketClosed = false;
for (int i = 0; i < valueL; i++) {
final byte b = valueB.get(i + valueS);
if (b == ']') {
bracketClosed = true;
} else if (b == ':') {
if (!ipv6 || bracketClosed) {
colonPos = i;
break;
}
}
}
if (colonPos < 0) {
if (!request.isSecure()) {
// 80 - Default HTTTP port
request.setServerPort(80);
} else {
// 443 - Default HTTPS port
request.setServerPort(443);
}
serverNameDC.setBuffer(valueB, valueS, valueS + valueL);
} else {
serverNameDC.setBuffer(valueB, valueS, valueS + colonPos);
int port = 0;
int mult = 1;
for (int i = valueL - 1; i > colonPos; i--) {
int charValue = DEC[(int) valueB.get(i + valueS)];
if (charValue == -1) {
// Invalid character
throw new IllegalStateException(
String.format(
"Host header %s contained a non-decimal value in the port definition.",
hostDC.toString()));
}
port = port + (charValue * mult);
mult = 10 * mult;
}
request.setServerPort(port);
}
}
