/** Handle an incoming connection. Blocking, obviously. */
public static void handle(Socket sock, ToadletContainer container, PageMaker pageMaker) {
try {
InputStream is = new BufferedInputStream(sock.getInputStream(), 4096);
LineReadingInputStream lis = new LineReadingInputStream(is);
while (true) {
String firstLine = lis.readLine(32768, 128, false); // ISO-8859-1 or US-ASCII, _not_ UTF-8
if (firstLine == null) {
sock.close();
return;
} else if (firstLine.equals("")) {
continue;
}
boolean logMINOR = Logger.shouldLog(Logger.MINOR, ToadletContextImpl.class);
if (logMINOR) Logger.minor(ToadletContextImpl.class, "first line: " + firstLine);
String[] split = firstLine.split(" ");
if (split.length != 3)
throw new ParseException(
"Could not parse request line (split.length=" + split.length + "): " + firstLine);
if (!split[2].startsWith("HTTP/1."))
throw new ParseException("Unrecognized protocol " + split[2]);
URI uri;
try {
uri = URIPreEncoder.encodeURI(split[1]).normalize();
if (logMINOR)
Logger.minor(
ToadletContextImpl.class,
"URI: "
+ uri
+ " path "
+ uri.getPath()
+ " host "
+ uri.getHost()
+ " frag "
+ uri.getFragment()
+ " port "
+ uri.getPort()
+ " query "
+ uri.getQuery()
+ " scheme "
+ uri.getScheme());
} catch (URISyntaxException e) {
sendURIParseError(sock.getOutputStream(), true, e);
return;
}
String method = split[0];
MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
while (true) {
String line = lis.readLine(32768, 128, false); // ISO-8859 or US-ASCII, not UTF-8
if (line == null) {
sock.close();
return;
}
// System.out.println("Length="+line.length()+": "+line);
if (line.length() == 0) break;
int index = line.indexOf(':');
if (index < 0) {
throw new ParseException("Missing ':' in request header field");
}
String before = line.substring(0, index).toLowerCase();
String after = line.substring(index + 1);
after = after.trim();
headers.put(before, after);
}
boolean disconnect =
shouldDisconnectAfterHandled(split[2].equals("HTTP/1.0"), headers)
|| !container.enablePersistentConnections();
boolean allowPost = container.allowPosts();
BucketFactory bf = container.getBucketFactory();
ToadletContextImpl ctx = new ToadletContextImpl(sock, headers, bf, pageMaker, container);
ctx.shouldDisconnect = disconnect;
/*
* copy the data into a bucket now,
* before we go into the redirect loop
*/
Bucket data;
boolean methodIsConfigurable = true;
String slen = headers.get("content-length");
if (METHODS_MUST_HAVE_DATA.contains(method)) {
// <method> must have data
methodIsConfigurable = false;
if (slen == null) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
} else if (METHODS_CANNOT_HAVE_DATA.contains(method)) {
// <method> can not have data
methodIsConfigurable = false;
if (slen != null) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
}
if (slen != null) {
long len;
try {
len = Integer.parseInt(slen);
if (len < 0) throw new NumberFormatException("content-length less than 0");
} catch (NumberFormatException e) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
if (allowPost && ((!container.publicGatewayMode()) || ctx.isAllowedFullAccess())) {
data = bf.makeBucket(len);
BucketTools.copyFrom(data, is, len);
} else {
FileUtil.skipFully(is, len);
if (method.equals("POST")) {
ctx.sendMethodNotAllowed("POST", true);
} else {
sendError(
sock.getOutputStream(),
403,
"Forbidden",
"Content not allowed in this configuration",
true,
null);
}
ctx.close();
return;
}
} else {
// we're not doing to use it, but we have to keep
// the compiler happy
data = null;
}
if (!container.enableExtendedMethodHandling()) {
if (!METHODS_RESTRICTED_MODE.contains(method)) {
sendError(
sock.getOutputStream(),
403,
"Forbidden",
"Method not allowed in this configuration",
true,
null);
return;
}
}
// Handle it.
try {
boolean redirect = true;
while (redirect) {
// don't go around the loop unless set explicitly
redirect = false;
Toadlet t;
try {
t = container.findToadlet(uri);
} catch (PermanentRedirectException e) {
Toadlet.writePermanentRedirect(ctx, "Found elsewhere", e.newuri.toASCIIString());
break;
}
if (t == null) {
ctx.sendNoToadletError(ctx.shouldDisconnect);
break;
}
// if the Toadlet does not support the method, we don't need to parse the data
// also due this pre check a 'NoSuchMethodException' should never appear
if (!(t.findSupportedMethods().contains(method))) {
ctx.sendMethodNotAllowed(method, ctx.shouldDisconnect);
break;
}
HTTPRequestImpl req = new HTTPRequestImpl(uri, data, ctx, method);
try {
String methodName = "handleMethod" + method;
try {
Class<? extends Toadlet> c = t.getClass();
Method m = c.getMethod(methodName, HANDLE_PARAMETERS);
if (methodIsConfigurable) {
AllowData anno = m.getAnnotation(AllowData.class);
if (anno == null) {
if (data != null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
"Content not allowed",
true,
null);
ctx.close();
return;
}
} else if (anno.value()) {
if (data == null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
"Missing Content",
true,
null);
ctx.close();
return;
}
}
}
ctx.setActiveToadlet(t);
Object arglist[] = new Object[] {uri, req, ctx};
m.invoke(t, arglist);
} catch (InvocationTargetException ite) {
throw ite.getCause();
}
} catch (RedirectException re) {
uri = re.newuri;
redirect = true;
} finally {
req.freeParts();
}
}
if (ctx.shouldDisconnect) {
sock.close();
return;
}
} finally {
if (data != null) data.free();
}
}
} catch (ParseException e) {
try {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("parseErrorWithError", "error", e.getMessage()),
true,
null);
} catch (IOException e1) {
// Ignore
}
} catch (TooLongException e) {
try {
sendError(
sock.getOutputStream(), 400, "Bad Request", l10n("headersLineTooLong"), true, null);
} catch (IOException e1) {
// Ignore
}
} catch (IOException e) {
// ignore and return
} catch (ToadletContextClosedException e) {
Logger.error(
ToadletContextImpl.class, "ToadletContextClosedException while handling connection!");
} catch (Throwable t) {
Logger.error(ToadletContextImpl.class, "Caught error: " + t + " handling socket", t);
try {
sendError(sock.getOutputStream(), 500, "Internal Error", t.toString(), true, null);
} catch (IOException e1) {
// ignore and return
}
}
}
/** Handle an incoming connection. Blocking, obviously. */
public static void handle(Socket sock, ToadletContainer container, PageMaker pageMaker) {
try {
InputStream is = new BufferedInputStream(sock.getInputStream(), 4096);
LineReadingInputStream lis = new LineReadingInputStream(is);
while (true) {
String firstLine = lis.readLine(32768, 128, false); // ISO-8859-1 or US-ASCII, _not_ UTF-8
if (firstLine == null) {
sock.close();
return;
} else if (firstLine.equals("")) {
continue;
}
boolean logMINOR = Logger.shouldLog(Logger.MINOR, ToadletContextImpl.class);
if (logMINOR) Logger.minor(ToadletContextImpl.class, "first line: " + firstLine);
String[] split = firstLine.split(" ");
if (split.length != 3)
throw new ParseException(
"Could not parse request line (split.length=" + split.length + "): " + firstLine);
if (!split[2].startsWith("HTTP/1."))
throw new ParseException("Unrecognized protocol " + split[2]);
URI uri;
try {
uri = URIPreEncoder.encodeURI(split[1]).normalize();
if (logMINOR)
Logger.minor(
ToadletContextImpl.class,
"URI: "
+ uri
+ " path "
+ uri.getPath()
+ " host "
+ uri.getHost()
+ " frag "
+ uri.getFragment()
+ " port "
+ uri.getPort()
+ " query "
+ uri.getQuery()
+ " scheme "
+ uri.getScheme());
} catch (URISyntaxException e) {
sendURIParseError(sock.getOutputStream(), true, e);
return;
}
String method = split[0];
MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
while (true) {
String line = lis.readLine(32768, 128, false); // ISO-8859 or US-ASCII, not UTF-8
if (line == null) {
sock.close();
return;
}
// System.out.println("Length="+line.length()+": "+line);
if (line.length() == 0) break;
int index = line.indexOf(':');
if (index < 0) {
throw new ParseException("Missing ':' in request header field");
}
String before = line.substring(0, index).toLowerCase();
String after = line.substring(index + 1);
after = after.trim();
headers.put(before, after);
}
boolean disconnect =
shouldDisconnectAfterHandled(split[2].equals("HTTP/1.0"), headers)
|| !container.enablePersistentConnections();
boolean allowPost = container.allowPosts();
BucketFactory bf = container.getBucketFactory();
ToadletContextImpl ctx = new ToadletContextImpl(sock, headers, bf, pageMaker, container);
ctx.shouldDisconnect = disconnect;
/*
* if we're handling a POST, copy the data into a bucket now,
* before we go into the redirect loop
*/
Bucket data;
if (method.equals("POST")) {
String slen = headers.get("content-length");
if (slen == null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("noContentLengthInPOST"),
true,
null);
return;
}
long len;
try {
len = Integer.parseInt(slen);
if (len < 0) throw new NumberFormatException("content-length less than 0");
} catch (NumberFormatException e) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("cannotParseContentLengthWithError", "error", e.toString()),
true,
null);
return;
}
if (allowPost && ((!container.publicGatewayMode()) || ctx.isAllowedFullAccess())) {
data = bf.makeBucket(len);
BucketTools.copyFrom(data, is, len);
} else {
FileUtil.skipFully(is, len);
ctx.sendMethodNotAllowed("POST", true);
ctx.close();
return;
}
} else {
// we're not doing to use it, but we have to keep
// the compiler happy
data = null;
}
// Handle it.
try {
boolean redirect = true;
while (redirect) {
// don't go around the loop unless set explicitly
redirect = false;
Toadlet t;
try {
t = container.findToadlet(uri);
} catch (PermanentRedirectException e) {
Toadlet.writePermanentRedirect(ctx, "Found elsewhere", e.newuri.toASCIIString());
break;
}
if (t == null) {
ctx.sendNoToadletError(ctx.shouldDisconnect);
break;
}
HTTPRequestImpl req = new HTTPRequestImpl(uri, data, ctx, method);
try {
if (method.equals("GET")) {
ctx.setActiveToadlet(t);
t.handleGet(uri, req, ctx);
ctx.close();
} else if (method.equals("POST")) {
ctx.setActiveToadlet(t);
t.handlePost(uri, req, ctx);
} else {
ctx.sendMethodNotAllowed(method, ctx.shouldDisconnect);
ctx.close();
}
} catch (RedirectException re) {
uri = re.newuri;
redirect = true;
} finally {
req.freeParts();
}
}
if (ctx.shouldDisconnect) {
sock.close();
return;
}
} finally {
if (data != null) data.free();
}
}
} catch (ParseException e) {
try {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("parseErrorWithError", "error", e.getMessage()),
true,
null);
} catch (IOException e1) {
// Ignore
}
} catch (TooLongException e) {
try {
sendError(
sock.getOutputStream(), 400, "Bad Request", l10n("headersLineTooLong"), true, null);
} catch (IOException e1) {
// Ignore
}
} catch (IOException e) {
// ignore and return
} catch (ToadletContextClosedException e) {
Logger.error(
ToadletContextImpl.class, "ToadletContextClosedException while handling connection!");
} catch (Throwable t) {
Logger.error(ToadletContextImpl.class, "Caught error: " + t + " handling socket", t);
try {
sendError(sock.getOutputStream(), 500, "Internal Error", t.toString(), true, null);
} catch (IOException e1) {
// ignore and return
}
}
}
