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nanohttpd: refactor: extract HTTPSession.readHeader()

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This commit is contained in:
Haowei Wen 2020-08-26 18:35:29 +08:00
parent 854b0284bd
commit d2ee1cb282
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GPG key ID: 5BC167F73EA558E4
1 changed files with 43 additions and 39 deletions
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82
src/main/java/moe/yushi/authlibinjector/internal/fi/iki/elonen/NanoHTTPD.java
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@ -197,6 +197,48 @@ public abstract class NanoHTTPD {
this.remoteAddr = remoteAddr; this.remoteAddr = remoteAddr;
} }
private ByteArrayInputStream readHeader() throws IOException {
// Read the first 8192 bytes.
// The full header should fit in here.
// Apache's default header limit is 8KB.
// Do NOT assume that a single read will get the entire header
// at once!
byte[] buf = new byte[HTTPSession.BUFSIZE];
int splitbyte = 0;
int rlen = 0;
int read = -1;
this.inputStream.mark(HTTPSession.BUFSIZE);
try {
read = this.inputStream.read(buf, 0, HTTPSession.BUFSIZE);
} catch (IOException e) {
safeClose(this.inputStream);
safeClose(this.outputStream);
throw new SocketException("NanoHttpd Shutdown");
}
if (read == -1) {
// socket was been closed
safeClose(this.inputStream);
safeClose(this.outputStream);
throw new SocketException("NanoHttpd Shutdown");
}
while (read > 0) {
rlen += read;
splitbyte = findHeaderEnd(buf, rlen);
if (splitbyte > 0) {
break;
}
read = this.inputStream.read(buf, rlen, HTTPSession.BUFSIZE - rlen);
}
if (splitbyte < rlen) {
this.inputStream.reset();
this.inputStream.skip(splitbyte);
}
return new ByteArrayInputStream(buf, 0, rlen);
}
private void parseHeader(BufferedReader in) throws ResponseException { private void parseHeader(BufferedReader in) throws ResponseException {
try { try {
String requestLine = in.readLine(); String requestLine = in.readLine();
@ -260,45 +302,7 @@ public abstract class NanoHTTPD {
public void execute() throws IOException { public void execute() throws IOException {
Response r = null; Response r = null;
try { try {
// Read the first 8192 bytes. parseHeader(new BufferedReader(new InputStreamReader(readHeader(), ISO_8859_1)));
// The full header should fit in here.
// Apache's default header limit is 8KB.
// Do NOT assume that a single read will get the entire header
// at once!
byte[] buf = new byte[HTTPSession.BUFSIZE];
int splitbyte = 0;
int rlen = 0;
int read = -1;
this.inputStream.mark(HTTPSession.BUFSIZE);
try {
read = this.inputStream.read(buf, 0, HTTPSession.BUFSIZE);
} catch (IOException e) {
safeClose(this.inputStream);
safeClose(this.outputStream);
throw new SocketException("NanoHttpd Shutdown");
}
if (read == -1) {
// socket was been closed
safeClose(this.inputStream);
safeClose(this.outputStream);
throw new SocketException("NanoHttpd Shutdown");
}
while (read > 0) {
rlen += read;
splitbyte = findHeaderEnd(buf, rlen);
if (splitbyte > 0) {
break;
}
read = this.inputStream.read(buf, rlen, HTTPSession.BUFSIZE - rlen);
}
if (splitbyte < rlen) {
this.inputStream.reset();
this.inputStream.skip(splitbyte);
}
parseHeader(new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, rlen), ISO_8859_1)));
String connection = this.headers.get("connection"); String connection = this.headers.get("connection");
boolean keepAlive = "HTTP/1.1".equals(protocolVersion) && (connection == null || !connection.matches("(?i).*close.*")); boolean keepAlive = "HTTP/1.1".equals(protocolVersion) && (connection == null || !connection.matches("(?i).*close.*"));