627 lines
25 KiB
Java
627 lines
25 KiB
Java
|
/*
|
||
|
|
* Copyright (C) 2014 The Android Open Source Project
|
||
|
|
* Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
|
|
*
|
||
|
|
* This code is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of the GNU General Public License version 2 only, as
|
||
|
|
* published by the Free Software Foundation. Oracle designates this
|
||
|
|
* particular file as subject to the "Classpath" exception as provided
|
||
|
|
* by Oracle in the LICENSE file that accompanied this code.
|
||
|
|
*
|
||
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
||
|
|
* accompanied this code).
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License version
|
||
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
||
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*
|
||
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
||
|
|
* or visit www.oracle.com if you need additional information or have any
|
||
|
|
* questions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package java.net;
|
||
|
|
|
||
|
|
import java.io.IOException;
|
||
|
|
import java.util.Objects;
|
||
|
|
|
||
|
|
import sun.net.util.IPAddressUtil;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The abstract class {@code URLStreamHandler} is the common
|
||
|
|
* superclass for all stream protocol handlers. A stream protocol
|
||
|
|
* handler knows how to make a connection for a particular protocol
|
||
|
|
* type, such as {@code http} or {@code https}.
|
||
|
|
* <p>
|
||
|
|
* In most cases, an instance of a {@code URLStreamHandler}
|
||
|
|
* subclass is not created directly by an application. Rather, the
|
||
|
|
* first time a protocol name is encountered when constructing a
|
||
|
|
* {@code URL}, the appropriate stream protocol handler is
|
||
|
|
* automatically loaded.
|
||
|
|
*
|
||
|
|
* @author James Gosling
|
||
|
|
* @see java.net.URL#URL(java.lang.String, java.lang.String, int, java.lang.String)
|
||
|
|
* @since JDK1.0
|
||
|
|
*/
|
||
|
|
public abstract class URLStreamHandler {
|
||
|
|
/**
|
||
|
|
* Opens a connection to the object referenced by the
|
||
|
|
* {@code URL} argument.
|
||
|
|
* This method should be overridden by a subclass.
|
||
|
|
*
|
||
|
|
* <p>If for the handler's protocol (such as HTTP or JAR), there
|
||
|
|
* exists a public, specialized URLConnection subclass belonging
|
||
|
|
* to one of the following packages or one of their subpackages:
|
||
|
|
* java.lang, java.io, java.util, java.net, the connection
|
||
|
|
* returned will be of that subclass. For example, for HTTP an
|
||
|
|
* HttpURLConnection will be returned, and for JAR a
|
||
|
|
* JarURLConnection will be returned.
|
||
|
|
*
|
||
|
|
* @param u the URL that this connects to.
|
||
|
|
* @return a {@code URLConnection} object for the {@code URL}.
|
||
|
|
* @exception IOException if an I/O error occurs while opening the
|
||
|
|
* connection.
|
||
|
|
*/
|
||
|
|
abstract protected URLConnection openConnection(URL u) throws IOException;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Same as openConnection(URL), except that the connection will be
|
||
|
|
* made through the specified proxy; Protocol handlers that do not
|
||
|
|
* support proxying will ignore the proxy parameter and make a
|
||
|
|
* normal connection.
|
||
|
|
*
|
||
|
|
* Calling this method preempts the system's default ProxySelector
|
||
|
|
* settings.
|
||
|
|
*
|
||
|
|
* @param u the URL that this connects to.
|
||
|
|
* @param p the proxy through which the connection will be made.
|
||
|
|
* If direct connection is desired, Proxy.NO_PROXY
|
||
|
|
* should be specified.
|
||
|
|
* @return a {@code URLConnection} object for the {@code URL}.
|
||
|
|
* @exception IOException if an I/O error occurs while opening the
|
||
|
|
* connection.
|
||
|
|
* @exception IllegalArgumentException if either u or p is null,
|
||
|
|
* or p has the wrong type.
|
||
|
|
* @exception UnsupportedOperationException if the subclass that
|
||
|
|
* implements the protocol doesn't support this method.
|
||
|
|
* @since 1.5
|
||
|
|
*/
|
||
|
|
protected URLConnection openConnection(URL u, Proxy p) throws IOException {
|
||
|
|
throw new UnsupportedOperationException("Method not implemented.");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parses the string representation of a {@code URL} into a
|
||
|
|
* {@code URL} object.
|
||
|
|
* <p>
|
||
|
|
* If there is any inherited context, then it has already been
|
||
|
|
* copied into the {@code URL} argument.
|
||
|
|
* <p>
|
||
|
|
* The {@code parseURL} method of {@code URLStreamHandler}
|
||
|
|
* parses the string representation as if it were an
|
||
|
|
* {@code http} specification. Most URL protocol families have a
|
||
|
|
* similar parsing. A stream protocol handler for a protocol that has
|
||
|
|
* a different syntax must override this routine.
|
||
|
|
*
|
||
|
|
* @param u the {@code URL} to receive the result of parsing
|
||
|
|
* the spec.
|
||
|
|
* @param spec the {@code String} representing the URL that
|
||
|
|
* must be parsed.
|
||
|
|
* @param start the character index at which to begin parsing. This is
|
||
|
|
* just past the '{@code :}' (if there is one) that
|
||
|
|
* specifies the determination of the protocol name.
|
||
|
|
* @param limit the character position to stop parsing at. This is the
|
||
|
|
* end of the string or the position of the
|
||
|
|
* "{@code #}" character, if present. All information
|
||
|
|
* after the sharp sign indicates an anchor.
|
||
|
|
*/
|
||
|
|
protected void parseURL(URL u, String spec, int start, int limit) {
|
||
|
|
// These fields may receive context content if this was relative URL
|
||
|
|
String protocol = u.getProtocol();
|
||
|
|
String authority = u.getAuthority();
|
||
|
|
String userInfo = u.getUserInfo();
|
||
|
|
String host = u.getHost();
|
||
|
|
int port = u.getPort();
|
||
|
|
String path = u.getPath();
|
||
|
|
String query = u.getQuery();
|
||
|
|
|
||
|
|
// This field has already been parsed
|
||
|
|
String ref = u.getRef();
|
||
|
|
|
||
|
|
boolean isRelPath = false;
|
||
|
|
boolean queryOnly = false;
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
boolean querySet = false;
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
|
||
|
|
// FIX: should not assume query if opaque
|
||
|
|
// Strip off the query part
|
||
|
|
if (start < limit) {
|
||
|
|
int queryStart = spec.indexOf('?');
|
||
|
|
queryOnly = queryStart == start;
|
||
|
|
if ((queryStart != -1) && (queryStart < limit)) {
|
||
|
|
query = spec.substring(queryStart+1, limit);
|
||
|
|
if (limit > queryStart)
|
||
|
|
limit = queryStart;
|
||
|
|
spec = spec.substring(0, queryStart);
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
querySet = true;
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int i = 0;
|
||
|
|
// Parse the authority part if any
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
// boolean isUNCName = (start <= limit - 4) &&
|
||
|
|
// (spec.charAt(start) == '/') &&
|
||
|
|
// (spec.charAt(start + 1) == '/') &&
|
||
|
|
// (spec.charAt(start + 2) == '/') &&
|
||
|
|
// (spec.charAt(start + 3) == '/');
|
||
|
|
boolean isUNCName = false;
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
if (!isUNCName && (start <= limit - 2) && (spec.charAt(start) == '/') &&
|
||
|
|
(spec.charAt(start + 1) == '/')) {
|
||
|
|
start += 2;
|
||
|
|
// BEGIN Android-changed: Check for all hostname termination chars. http://b/110955991
|
||
|
|
/*
|
||
|
|
i = spec.indexOf('/', start);
|
||
|
|
if (i < 0 || i > limit) {
|
||
|
|
i = spec.indexOf('?', start);
|
||
|
|
if (i < 0 || i > limit)
|
||
|
|
i = limit;
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
LOOP: for (i = start; i < limit; i++) {
|
||
|
|
switch (spec.charAt(i)) {
|
||
|
|
case '/': // Start of path
|
||
|
|
case '\\': // Start of path - see https://url.spec.whatwg.org/#host-state
|
||
|
|
case '?': // Start of query
|
||
|
|
case '#': // Start of fragment
|
||
|
|
break LOOP;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// END Android-changed: Check for all hostname termination chars. http://b/110955991
|
||
|
|
|
||
|
|
host = authority = spec.substring(start, i);
|
||
|
|
|
||
|
|
int ind = authority.indexOf('@');
|
||
|
|
if (ind != -1) {
|
||
|
|
if (ind != authority.lastIndexOf('@')) {
|
||
|
|
// more than one '@' in authority. This is not server based
|
||
|
|
userInfo = null;
|
||
|
|
host = null;
|
||
|
|
} else {
|
||
|
|
userInfo = authority.substring(0, ind);
|
||
|
|
host = authority.substring(ind+1);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
userInfo = null;
|
||
|
|
}
|
||
|
|
if (host != null) {
|
||
|
|
// If the host is surrounded by [ and ] then its an IPv6
|
||
|
|
// literal address as specified in RFC2732
|
||
|
|
if (host.length()>0 && (host.charAt(0) == '[')) {
|
||
|
|
if ((ind = host.indexOf(']')) > 2) {
|
||
|
|
|
||
|
|
String nhost = host ;
|
||
|
|
host = nhost.substring(0,ind+1);
|
||
|
|
if (!IPAddressUtil.
|
||
|
|
isIPv6LiteralAddress(host.substring(1, ind))) {
|
||
|
|
throw new IllegalArgumentException(
|
||
|
|
"Invalid host: "+ host);
|
||
|
|
}
|
||
|
|
|
||
|
|
port = -1 ;
|
||
|
|
if (nhost.length() > ind+1) {
|
||
|
|
if (nhost.charAt(ind+1) == ':') {
|
||
|
|
++ind ;
|
||
|
|
// port can be null according to RFC2396
|
||
|
|
if (nhost.length() > (ind + 1)) {
|
||
|
|
port = Integer.parseInt(nhost.substring(ind+1));
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
throw new IllegalArgumentException(
|
||
|
|
"Invalid authority field: " + authority);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
throw new IllegalArgumentException(
|
||
|
|
"Invalid authority field: " + authority);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ind = host.indexOf(':');
|
||
|
|
port = -1;
|
||
|
|
if (ind >= 0) {
|
||
|
|
// port can be null according to RFC2396
|
||
|
|
if (host.length() > (ind + 1)) {
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
// port = Integer.parseInt(host.substring(ind + 1));
|
||
|
|
char firstPortChar = host.charAt(ind+1);
|
||
|
|
if (firstPortChar >= '0' && firstPortChar <= '9') {
|
||
|
|
port = Integer.parseInt(host.substring(ind + 1));
|
||
|
|
} else {
|
||
|
|
throw new IllegalArgumentException("invalid port: " +
|
||
|
|
host.substring(ind + 1));
|
||
|
|
}
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
}
|
||
|
|
host = host.substring(0, ind);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
host = "";
|
||
|
|
}
|
||
|
|
if (port < -1)
|
||
|
|
throw new IllegalArgumentException("Invalid port number :" +
|
||
|
|
port);
|
||
|
|
start = i;
|
||
|
|
|
||
|
|
// If the authority is defined then the path is defined by the
|
||
|
|
// spec only; See RFC 2396 Section 5.2.4.
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
// if (authority != null && authority.length() > 0)
|
||
|
|
// path = "";
|
||
|
|
path = null;
|
||
|
|
if (!querySet) {
|
||
|
|
query = null;
|
||
|
|
}
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
}
|
||
|
|
|
||
|
|
if (host == null) {
|
||
|
|
host = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse the file path if any
|
||
|
|
if (start < limit) {
|
||
|
|
// Android-changed: Check for all hostname termination chars. http://b/110955991
|
||
|
|
// if (spec.charAt(start) == '/') {
|
||
|
|
if (spec.charAt(start) == '/' || spec.charAt(start) == '\\') {
|
||
|
|
path = spec.substring(start, limit);
|
||
|
|
} else if (path != null && path.length() > 0) {
|
||
|
|
isRelPath = true;
|
||
|
|
int ind = path.lastIndexOf('/');
|
||
|
|
String seperator = "";
|
||
|
|
if (ind == -1 && authority != null)
|
||
|
|
seperator = "/";
|
||
|
|
path = path.substring(0, ind + 1) + seperator +
|
||
|
|
spec.substring(start, limit);
|
||
|
|
|
||
|
|
} else {
|
||
|
|
String seperator = (authority != null) ? "/" : "";
|
||
|
|
path = seperator + spec.substring(start, limit);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
//else if (queryOnly && path != null) {
|
||
|
|
// int ind = path.lastIndexOf('/');
|
||
|
|
// if (ind < 0)
|
||
|
|
// ind = 0;
|
||
|
|
// path = path.substring(0, ind) + "/";
|
||
|
|
//}
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
if (path == null)
|
||
|
|
path = "";
|
||
|
|
|
||
|
|
// BEGIN Android-changed: always assume isRelPath is true.
|
||
|
|
//if (isRelPath) {
|
||
|
|
if (true) {
|
||
|
|
// END Android-changed: always assume isRelPath is true.
|
||
|
|
// Remove embedded /./
|
||
|
|
while ((i = path.indexOf("/./")) >= 0) {
|
||
|
|
path = path.substring(0, i) + path.substring(i + 2);
|
||
|
|
}
|
||
|
|
// Remove embedded /../ if possible
|
||
|
|
i = 0;
|
||
|
|
while ((i = path.indexOf("/../", i)) >= 0) {
|
||
|
|
// BEGIN Android-changed: App compat.
|
||
|
|
/*
|
||
|
|
* Trailing /../
|
||
|
|
*/
|
||
|
|
if (i == 0) {
|
||
|
|
path = path.substring(i + 3);
|
||
|
|
i = 0;
|
||
|
|
// END Android-changed: App compat.
|
||
|
|
/*
|
||
|
|
* A "/../" will cancel the previous segment and itself,
|
||
|
|
* unless that segment is a "/../" itself
|
||
|
|
* i.e. "/a/b/../c" becomes "/a/c"
|
||
|
|
* but "/../../a" should stay unchanged
|
||
|
|
*/
|
||
|
|
// Android-changed: App compat.
|
||
|
|
// if (i > 0 && (limit = path.lastIndexOf('/', i - 1)) >= 0 &&
|
||
|
|
} else if (i > 0 && (limit = path.lastIndexOf('/', i - 1)) >= 0 &&
|
||
|
|
(path.indexOf("/../", limit) != 0)) {
|
||
|
|
path = path.substring(0, limit) + path.substring(i + 3);
|
||
|
|
i = 0;
|
||
|
|
} else {
|
||
|
|
i = i + 3;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Remove trailing .. if possible
|
||
|
|
while (path.endsWith("/..")) {
|
||
|
|
i = path.indexOf("/..");
|
||
|
|
if ((limit = path.lastIndexOf('/', i - 1)) >= 0) {
|
||
|
|
path = path.substring(0, limit+1);
|
||
|
|
} else {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Remove starting .
|
||
|
|
if (path.startsWith("./") && path.length() > 2)
|
||
|
|
path = path.substring(2);
|
||
|
|
|
||
|
|
// Remove trailing .
|
||
|
|
if (path.endsWith("/."))
|
||
|
|
path = path.substring(0, path.length() -1);
|
||
|
|
|
||
|
|
// Android-changed: App compat: Remove trailing '?'.
|
||
|
|
if (path.endsWith("?"))
|
||
|
|
path = path.substring(0, path.length() -1);
|
||
|
|
}
|
||
|
|
|
||
|
|
setURL(u, protocol, host, port, authority, userInfo, path, query, ref);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the default port for a URL parsed by this handler. This method
|
||
|
|
* is meant to be overidden by handlers with default port numbers.
|
||
|
|
* @return the default port for a {@code URL} parsed by this handler.
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected int getDefaultPort() {
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Provides the default equals calculation. May be overidden by handlers
|
||
|
|
* for other protocols that have different requirements for equals().
|
||
|
|
* This method requires that none of its arguments is null. This is
|
||
|
|
* guaranteed by the fact that it is only called by java.net.URL class.
|
||
|
|
* @param u1 a URL object
|
||
|
|
* @param u2 a URL object
|
||
|
|
* @return {@code true} if the two urls are
|
||
|
|
* considered equal, ie. they refer to the same
|
||
|
|
* fragment in the same file.
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected boolean equals(URL u1, URL u2) {
|
||
|
|
// Android-changed: Avoid network I/O.
|
||
|
|
return Objects.equals(u1.getRef(), u2.getRef()) &&
|
||
|
|
Objects.equals(u1.getQuery(), u2.getQuery()) &&
|
||
|
|
// sameFile compares the protocol, file, port & host components of
|
||
|
|
// the URLs.
|
||
|
|
sameFile(u1, u2);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Provides the default hash calculation. May be overidden by handlers for
|
||
|
|
* other protocols that have different requirements for hashCode
|
||
|
|
* calculation.
|
||
|
|
* @param u a URL object
|
||
|
|
* @return an {@code int} suitable for hash table indexing
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected int hashCode(URL u) {
|
||
|
|
// Android-changed: Avoid network I/O.
|
||
|
|
// Hash on the same set of fields that we compare in equals().
|
||
|
|
return Objects.hash(
|
||
|
|
u.getRef(),
|
||
|
|
u.getQuery(),
|
||
|
|
u.getProtocol(),
|
||
|
|
u.getFile(),
|
||
|
|
u.getHost(),
|
||
|
|
u.getPort());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compare two urls to see whether they refer to the same file,
|
||
|
|
* i.e., having the same protocol, host, port, and path.
|
||
|
|
* This method requires that none of its arguments is null. This is
|
||
|
|
* guaranteed by the fact that it is only called indirectly
|
||
|
|
* by java.net.URL class.
|
||
|
|
* @param u1 a URL object
|
||
|
|
* @param u2 a URL object
|
||
|
|
* @return true if u1 and u2 refer to the same file
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected boolean sameFile(URL u1, URL u2) {
|
||
|
|
// Compare the protocols.
|
||
|
|
if (!((u1.getProtocol() == u2.getProtocol()) ||
|
||
|
|
(u1.getProtocol() != null &&
|
||
|
|
u1.getProtocol().equalsIgnoreCase(u2.getProtocol()))))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// Compare the files.
|
||
|
|
if (!(u1.getFile() == u2.getFile() ||
|
||
|
|
(u1.getFile() != null && u1.getFile().equals(u2.getFile()))))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// Compare the ports.
|
||
|
|
int port1, port2;
|
||
|
|
port1 = (u1.getPort() != -1) ? u1.getPort() : u1.handler.getDefaultPort();
|
||
|
|
port2 = (u2.getPort() != -1) ? u2.getPort() : u2.handler.getDefaultPort();
|
||
|
|
if (port1 != port2)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
// Compare the hosts.
|
||
|
|
if (!hostsEqual(u1, u2))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the IP address of our host. An empty host field or a DNS failure
|
||
|
|
* will result in a null return.
|
||
|
|
*
|
||
|
|
* @param u a URL object
|
||
|
|
* @return an {@code InetAddress} representing the host
|
||
|
|
* IP address.
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected synchronized InetAddress getHostAddress(URL u) {
|
||
|
|
if (u.hostAddress != null)
|
||
|
|
return u.hostAddress;
|
||
|
|
|
||
|
|
String host = u.getHost();
|
||
|
|
if (host == null || host.equals("")) {
|
||
|
|
return null;
|
||
|
|
} else {
|
||
|
|
try {
|
||
|
|
u.hostAddress = InetAddress.getByName(host);
|
||
|
|
} catch (UnknownHostException ex) {
|
||
|
|
return null;
|
||
|
|
} catch (SecurityException se) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return u.hostAddress;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compares the host components of two URLs.
|
||
|
|
* @param u1 the URL of the first host to compare
|
||
|
|
* @param u2 the URL of the second host to compare
|
||
|
|
* @return {@code true} if and only if they
|
||
|
|
* are equal, {@code false} otherwise.
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected boolean hostsEqual(URL u1, URL u2) {
|
||
|
|
// Android-changed: Don't compare the InetAddresses of the hosts.
|
||
|
|
if (u1.getHost() != null && u2.getHost() != null)
|
||
|
|
return u1.getHost().equalsIgnoreCase(u2.getHost());
|
||
|
|
else
|
||
|
|
return u1.getHost() == null && u2.getHost() == null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts a {@code URL} of a specific protocol to a
|
||
|
|
* {@code String}.
|
||
|
|
*
|
||
|
|
* @param u the URL.
|
||
|
|
* @return a string representation of the {@code URL} argument.
|
||
|
|
*/
|
||
|
|
protected String toExternalForm(URL u) {
|
||
|
|
|
||
|
|
// pre-compute length of StringBuffer
|
||
|
|
int len = u.getProtocol().length() + 1;
|
||
|
|
if (u.getAuthority() != null && u.getAuthority().length() > 0)
|
||
|
|
len += 2 + u.getAuthority().length();
|
||
|
|
if (u.getPath() != null) {
|
||
|
|
len += u.getPath().length();
|
||
|
|
}
|
||
|
|
if (u.getQuery() != null) {
|
||
|
|
len += 1 + u.getQuery().length();
|
||
|
|
}
|
||
|
|
if (u.getRef() != null)
|
||
|
|
len += 1 + u.getRef().length();
|
||
|
|
|
||
|
|
// BEGIN Android-changed: New toExternalForm variant that optionally escapes illegal chars.
|
||
|
|
// TODO: The variant has been removed. We can potentially revert the change
|
||
|
|
StringBuilder result = new StringBuilder(len);
|
||
|
|
result.append(u.getProtocol());
|
||
|
|
result.append(":");
|
||
|
|
if (u.getAuthority() != null) {// ANDROID: && u.getAuthority().length() > 0) {
|
||
|
|
result.append("//");
|
||
|
|
result.append(u.getAuthority());
|
||
|
|
}
|
||
|
|
String fileAndQuery = u.getFile();
|
||
|
|
if (fileAndQuery != null) {
|
||
|
|
result.append(fileAndQuery);
|
||
|
|
}
|
||
|
|
// END Android-changed: New toExternalForm variant that optionally escapes illegal chars.
|
||
|
|
if (u.getRef() != null) {
|
||
|
|
result.append("#");
|
||
|
|
result.append(u.getRef());
|
||
|
|
}
|
||
|
|
return result.toString();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Android-changed: Removed @see tag (target is package-private).
|
||
|
|
// @see java.net.URL#set(java.lang.String, java.lang.String, int, java.lang.String, java.lang.String)
|
||
|
|
/**
|
||
|
|
* Sets the fields of the {@code URL} argument to the indicated values.
|
||
|
|
* Only classes derived from URLStreamHandler are able
|
||
|
|
* to use this method to set the values of the URL fields.
|
||
|
|
*
|
||
|
|
* @param u the URL to modify.
|
||
|
|
* @param protocol the protocol name.
|
||
|
|
* @param host the remote host value for the URL.
|
||
|
|
* @param port the port on the remote machine.
|
||
|
|
* @param authority the authority part for the URL.
|
||
|
|
* @param userInfo the userInfo part of the URL.
|
||
|
|
* @param path the path component of the URL.
|
||
|
|
* @param query the query part for the URL.
|
||
|
|
* @param ref the reference.
|
||
|
|
* @exception SecurityException if the protocol handler of the URL is
|
||
|
|
* different from this one
|
||
|
|
* @since 1.3
|
||
|
|
*/
|
||
|
|
protected void setURL(URL u, String protocol, String host, int port,
|
||
|
|
String authority, String userInfo, String path,
|
||
|
|
String query, String ref) {
|
||
|
|
if (this != u.handler) {
|
||
|
|
throw new SecurityException("handler for url different from " +
|
||
|
|
"this handler");
|
||
|
|
}
|
||
|
|
// ensure that no one can reset the protocol on a given URL.
|
||
|
|
u.set(u.getProtocol(), host, port, authority, userInfo, path, query, ref);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the fields of the {@code URL} argument to the indicated values.
|
||
|
|
* Only classes derived from URLStreamHandler are able
|
||
|
|
* to use this method to set the values of the URL fields.
|
||
|
|
*
|
||
|
|
* @param u the URL to modify.
|
||
|
|
* @param protocol the protocol name. This value is ignored since 1.2.
|
||
|
|
* @param host the remote host value for the URL.
|
||
|
|
* @param port the port on the remote machine.
|
||
|
|
* @param file the file.
|
||
|
|
* @param ref the reference.
|
||
|
|
* @exception SecurityException if the protocol handler of the URL is
|
||
|
|
* different from this one
|
||
|
|
* @deprecated Use setURL(URL, String, String, int, String, String, String,
|
||
|
|
* String);
|
||
|
|
*/
|
||
|
|
@Deprecated
|
||
|
|
protected void setURL(URL u, String protocol, String host, int port,
|
||
|
|
String file, String ref) {
|
||
|
|
/*
|
||
|
|
* Only old URL handlers call this, so assume that the host
|
||
|
|
* field might contain "user:passwd@host". Fix as necessary.
|
||
|
|
*/
|
||
|
|
String authority = null;
|
||
|
|
String userInfo = null;
|
||
|
|
if (host != null && host.length() != 0) {
|
||
|
|
authority = (port == -1) ? host : host + ":" + port;
|
||
|
|
int at = host.lastIndexOf('@');
|
||
|
|
if (at != -1) {
|
||
|
|
userInfo = host.substring(0, at);
|
||
|
|
host = host.substring(at+1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Assume file might contain query part. Fix as necessary.
|
||
|
|
*/
|
||
|
|
String path = null;
|
||
|
|
String query = null;
|
||
|
|
if (file != null) {
|
||
|
|
int q = file.lastIndexOf('?');
|
||
|
|
if (q != -1) {
|
||
|
|
query = file.substring(q+1);
|
||
|
|
path = file.substring(0, q);
|
||
|
|
} else
|
||
|
|
path = file;
|
||
|
|
}
|
||
|
|
setURL(u, protocol, host, port, authority, userInfo, path, query, ref);
|
||
|
|
}
|
||
|
|
}
|