com.signalfx.shaded.jetty.http.HttpURI Maven / Gradle / Ivy
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//
// ========================================================================
// Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package com.signalfx.shaded.jetty.http;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import com.signalfx.shaded.jetty.util.MultiMap;
import com.signalfx.shaded.jetty.util.TypeUtil;
import com.signalfx.shaded.jetty.util.URIUtil;
import com.signalfx.shaded.jetty.util.UrlEncoded;
/**
* Http URI.
* Parse an HTTP URI from a string or byte array. Given a URI
* http://user@host:port/path/info;param?query#fragment
* this class will split it into the following undecoded optional elements:
* - {@link #getScheme()} - http:
* - {@link #getAuthority()} - //name@host:port
* - {@link #getHost()} - host
* - {@link #getPort()} - port
* - {@link #getPath()} - /path/info
* - {@link #getParam()} - param
* - {@link #getQuery()} - query
* - {@link #getFragment()} - fragment
*
*
* Any parameters will be returned from {@link #getPath()}, but are excluded from the
* return value of {@link #getDecodedPath()}. If there are multiple parameters, the
* {@link #getParam()} method returns only the last one.
*/
public class HttpURI
{
private enum State
{
START,
HOST_OR_PATH,
SCHEME_OR_PATH,
HOST,
IPV6,
PORT,
PATH,
PARAM,
QUERY,
FRAGMENT,
ASTERISK
}
private String _scheme;
private String _user;
private String _host;
private int _port;
private String _path;
private String _param;
private String _query;
private String _fragment;
String _uri;
String _decodedPath;
/**
* Construct a normalized URI.
* Port is not set if it is the default port.
*
* @param scheme the URI scheme
* @param host the URI hose
* @param port the URI port
* @param path the URI path
* @param param the URI param
* @param query the URI query
* @param fragment the URI fragment
* @return the normalized URI
*/
public static HttpURI createHttpURI(String scheme, String host, int port, String path, String param, String query, String fragment)
{
if (port == 80 && HttpScheme.HTTP.is(scheme))
port = 0;
if (port == 443 && HttpScheme.HTTPS.is(scheme))
port = 0;
return new HttpURI(scheme, host, port, path, param, query, fragment);
}
public HttpURI()
{
}
public HttpURI(String scheme, String host, int port, String path, String param, String query, String fragment)
{
_scheme = scheme;
_host = host;
_port = port;
_path = path;
_param = param;
_query = query;
_fragment = fragment;
}
public HttpURI(HttpURI uri)
{
this(uri._scheme, uri._host, uri._port, uri._path, uri._param, uri._query, uri._fragment);
_uri = uri._uri;
}
public HttpURI(String uri)
{
_port = -1;
parse(State.START, uri, 0, uri.length());
}
public HttpURI(URI uri)
{
_uri = null;
_scheme = uri.getScheme();
_host = uri.getHost();
if (_host == null && uri.getRawSchemeSpecificPart().startsWith("//"))
_host = "";
_port = uri.getPort();
_user = uri.getUserInfo();
_path = uri.getRawPath();
_decodedPath = uri.getPath();
if (_decodedPath != null)
{
int p = _decodedPath.lastIndexOf(';');
if (p >= 0)
_param = _decodedPath.substring(p + 1);
}
_query = uri.getRawQuery();
_fragment = uri.getFragment();
_decodedPath = null;
}
public HttpURI(String scheme, String host, int port, String pathQuery)
{
_uri = null;
_scheme = scheme;
_host = host;
_port = port;
if (pathQuery != null)
parse(State.PATH, pathQuery, 0, pathQuery.length());
}
public void parse(String uri)
{
clear();
_uri = uri;
parse(State.START, uri, 0, uri.length());
}
/**
* Parse according to https://tools.ietf.org/html/rfc7230#section-5.3
*
* @param method the request method
* @param uri the request uri
*/
public void parseRequestTarget(String method, String uri)
{
clear();
_uri = uri;
if (HttpMethod.CONNECT.is(method))
_path = uri;
else
parse(uri.startsWith("/") ? State.PATH : State.START, uri, 0, uri.length());
}
@Deprecated
public void parseConnect(String uri)
{
clear();
_uri = uri;
_path = uri;
}
public void parse(String uri, int offset, int length)
{
clear();
int end = offset + length;
_uri = uri.substring(offset, end);
parse(State.START, uri, offset, end);
}
private void parse(State state, final String uri, final int offset, final int end)
{
boolean encoded = false;
int mark = offset;
int pathMark = 0;
for (int i = offset; i < end; i++)
{
char c = uri.charAt(i);
switch (state)
{
case START:
{
switch (c)
{
case '/':
mark = i;
state = State.HOST_OR_PATH;
break;
case ';':
mark = i + 1;
state = State.PARAM;
break;
case '?':
// assume empty path (if seen at start)
_path = "";
mark = i + 1;
state = State.QUERY;
break;
case '#':
mark = i + 1;
state = State.FRAGMENT;
break;
case '*':
_path = "*";
state = State.ASTERISK;
break;
default:
mark = i;
if (_scheme == null)
state = State.SCHEME_OR_PATH;
else
{
pathMark = i;
state = State.PATH;
}
}
continue;
}
case SCHEME_OR_PATH:
{
switch (c)
{
case ':':
// must have been a scheme
_scheme = uri.substring(mark, i);
// Start again with scheme set
state = State.START;
break;
case '/':
// must have been in a path and still are
state = State.PATH;
break;
case ';':
// must have been in a path
mark = i + 1;
state = State.PARAM;
break;
case '?':
// must have been in a path
_path = uri.substring(mark, i);
mark = i + 1;
state = State.QUERY;
break;
case '%':
// must have be in an encoded path
encoded = true;
state = State.PATH;
break;
case '#':
// must have been in a path
_path = uri.substring(mark, i);
state = State.FRAGMENT;
break;
}
continue;
}
case HOST_OR_PATH:
{
switch (c)
{
case '/':
_host = "";
mark = i + 1;
state = State.HOST;
break;
case '@':
case ';':
case '?':
case '#':
// was a path, look again
i--;
pathMark = mark;
state = State.PATH;
break;
default:
// it is a path
pathMark = mark;
state = State.PATH;
}
continue;
}
case HOST:
{
switch (c)
{
case '/':
_host = uri.substring(mark, i);
pathMark = mark = i;
state = State.PATH;
break;
case ':':
if (i > mark)
_host = uri.substring(mark, i);
mark = i + 1;
state = State.PORT;
break;
case '@':
if (_user != null)
throw new IllegalArgumentException("Bad authority");
_user = uri.substring(mark, i);
mark = i + 1;
break;
case '[':
state = State.IPV6;
break;
}
continue;
}
case IPV6:
{
switch (c)
{
case '/':
throw new IllegalArgumentException("No closing ']' for ipv6 in " + uri);
case ']':
c = uri.charAt(++i);
_host = uri.substring(mark, i);
if (c == ':')
{
mark = i + 1;
state = State.PORT;
}
else
{
pathMark = mark = i;
state = State.PATH;
}
break;
}
continue;
}
case PORT:
{
if (c == '@')
{
if (_user != null)
throw new IllegalArgumentException("Bad authority");
// It wasn't a port, but a password!
_user = _host + ":" + uri.substring(mark, i);
mark = i + 1;
state = State.HOST;
}
else if (c == '/')
{
_port = TypeUtil.parseInt(uri, mark, i - mark, 10);
pathMark = mark = i;
state = State.PATH;
}
continue;
}
case PATH:
{
switch (c)
{
case ';':
mark = i + 1;
state = State.PARAM;
break;
case '?':
_path = uri.substring(pathMark, i);
mark = i + 1;
state = State.QUERY;
break;
case '#':
_path = uri.substring(pathMark, i);
mark = i + 1;
state = State.FRAGMENT;
break;
case '%':
encoded = true;
break;
}
continue;
}
case PARAM:
{
switch (c)
{
case '?':
_path = uri.substring(pathMark, i);
_param = uri.substring(mark, i);
mark = i + 1;
state = State.QUERY;
break;
case '#':
_path = uri.substring(pathMark, i);
_param = uri.substring(mark, i);
mark = i + 1;
state = State.FRAGMENT;
break;
case '/':
encoded = true;
// ignore internal params
state = State.PATH;
break;
case ';':
// multiple parameters
mark = i + 1;
break;
}
continue;
}
case QUERY:
{
if (c == '#')
{
_query = uri.substring(mark, i);
mark = i + 1;
state = State.FRAGMENT;
}
continue;
}
case ASTERISK:
{
throw new IllegalArgumentException("Bad character '*'");
}
case FRAGMENT:
{
_fragment = uri.substring(mark, end);
i = end;
}
}
}
switch (state)
{
case START:
break;
case SCHEME_OR_PATH:
_path = uri.substring(mark, end);
break;
case HOST_OR_PATH:
_path = uri.substring(mark, end);
break;
case HOST:
if (end > mark)
_host = uri.substring(mark, end);
break;
case IPV6:
throw new IllegalArgumentException("No closing ']' for ipv6 in " + uri);
case PORT:
_port = TypeUtil.parseInt(uri, mark, end - mark, 10);
break;
case ASTERISK:
break;
case FRAGMENT:
_fragment = uri.substring(mark, end);
break;
case PARAM:
_path = uri.substring(pathMark, end);
_param = uri.substring(mark, end);
break;
case PATH:
_path = uri.substring(pathMark, end);
break;
case QUERY:
_query = uri.substring(mark, end);
break;
}
if (!encoded)
{
if (_param == null)
_decodedPath = _path;
else
_decodedPath = _path.substring(0, _path.length() - _param.length() - 1);
}
}
public String getScheme()
{
return _scheme;
}
public String getHost()
{
// Return null for empty host to retain compatibility with java.net.URI
if (_host != null && _host.isEmpty())
return null;
return _host;
}
public int getPort()
{
return _port;
}
/**
* The parsed Path.
*
* @return the path as parsed on valid URI. null for invalid URI.
*/
public String getPath()
{
return _path;
}
public String getDecodedPath()
{
if (_decodedPath == null && _path != null)
_decodedPath = URIUtil.decodePath(_path);
return _decodedPath;
}
public String getParam()
{
return _param;
}
public void setParam(String param)
{
_param = param;
if (_path != null && !_path.contains(_param))
{
_path += ";" + _param;
}
}
public String getQuery()
{
return _query;
}
public boolean hasQuery()
{
return _query != null && !_query.isEmpty();
}
public String getFragment()
{
return _fragment;
}
public void decodeQueryTo(MultiMap parameters)
{
if (_query == null)
return;
UrlEncoded.decodeUtf8To(_query, parameters);
}
public void decodeQueryTo(MultiMap parameters, String encoding) throws UnsupportedEncodingException
{
decodeQueryTo(parameters, Charset.forName(encoding));
}
public void decodeQueryTo(MultiMap parameters, Charset encoding) throws UnsupportedEncodingException
{
if (_query == null)
return;
if (encoding == null || StandardCharsets.UTF_8.equals(encoding))
UrlEncoded.decodeUtf8To(_query, parameters);
else
UrlEncoded.decodeTo(_query, parameters, encoding);
}
public void clear()
{
_uri = null;
_scheme = null;
_host = null;
_port = -1;
_path = null;
_param = null;
_query = null;
_fragment = null;
_decodedPath = null;
}
public boolean isAbsolute()
{
return _scheme != null && !_scheme.isEmpty();
}
@Override
public String toString()
{
if (_uri == null)
{
StringBuilder out = new StringBuilder();
if (_scheme != null)
out.append(_scheme).append(':');
if (_host != null)
{
out.append("//");
if (_user != null)
out.append(_user).append('@');
out.append(_host);
}
if (_port > 0)
out.append(':').append(_port);
if (_path != null)
out.append(_path);
if (_query != null)
out.append('?').append(_query);
if (_fragment != null)
out.append('#').append(_fragment);
if (out.length() > 0)
_uri = out.toString();
else
_uri = "";
}
return _uri;
}
@Override
public boolean equals(Object o)
{
if (o == this)
return true;
if (!(o instanceof HttpURI))
return false;
return toString().equals(o.toString());
}
public void setScheme(String scheme)
{
_scheme = scheme;
_uri = null;
}
/**
* @param host the host
* @param port the port
*/
public void setAuthority(String host, int port)
{
_host = host;
_port = port;
_uri = null;
}
/**
* @param path the path
*/
public void setPath(String path)
{
_uri = null;
_path = path;
_decodedPath = null;
}
public void setPathQuery(String path)
{
_uri = null;
_path = null;
_decodedPath = null;
_param = null;
_fragment = null;
if (path != null)
parse(State.PATH, path, 0, path.length());
}
public void setQuery(String query)
{
_query = query;
_uri = null;
}
public URI toURI() throws URISyntaxException
{
return new URI(_scheme, null, _host, _port, _path, _query == null ? null : UrlEncoded.decodeString(_query), _fragment);
}
public String getPathQuery()
{
if (_query == null)
return _path;
return _path + "?" + _query;
}
public String getAuthority()
{
if (_port > 0)
return _host + ":" + _port;
return _host;
}
public String getUser()
{
return _user;
}
}