private MessageHeaders parseMessageHeaders(StringBuilder sb) {
MessageHeaders messageHeaders = new MessageHeaders();
try {
// read headers until no more are found
while (true) {
String headerName = readUntil(sb, HEADER_SEPARATOR);
expect(sb, HEADER_SEPARATOR);
String headerValue = readUntil(sb, CRLF);
expect(sb, CRLF);
messageHeaders.addHeader(headerName, headerValue);
}
} catch (RequestMessageParsingException e) {
// done reading headers
}
return messageHeaders;
}
public RequestMessage parseRequestMessage(String msg) throws RequestMessageParsingException {
StringBuilder sb = new StringBuilder(msg);
RequestMethod requestMethod = parseRequestMethod(sb);
RequestTarget requestTarget = parseRequestTarget(sb);
HttpVersion httpVersion = parseHttpVersion(sb);
MessageHeaders messageHeaders = parseMessageHeaders(sb);
String messageBody = parseMessageBody(sb);
Map<String, String> headers = messageHeaders.getHeaders();
if (headers.containsKey(HOST_HEADER_NAME)) {
String hostName = headers.get(HOST_HEADER_NAME);
requestTarget.setHost(hostName);
} else {
System.err.println("Host header not found.");
}
return new RequestMessage(
requestMethod, requestTarget, httpVersion, messageHeaders, messageBody);
}