/*
* Copyright (c) 2013. wyouflf (wyouflf@gmail.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.lidroid.xutils.http.client.util;
import android.text.TextUtils;
import com.lidroid.xutils.util.LogUtils;
import org.apache.http.NameValuePair;
import org.apache.http.conn.util.InetAddressUtils;
import org.apache.http.message.BasicNameValuePair;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class URIBuilder {
private String scheme;
private String encodedSchemeSpecificPart;
private String encodedAuthority;
private String userInfo;
private String encodedUserInfo;
private String host;
private int port;
private String path;
private String encodedPath;
private String encodedQuery;
private List<NameValuePair> queryParams;
private String fragment;
private String encodedFragment;
public URIBuilder() {
this.port = -1;
}
public URIBuilder(final String uri) {
try {
digestURI(new URI(uri));
} catch (URISyntaxException e) {
LogUtils.e(e.getMessage(), e);
}
}
public URIBuilder(final URI uri) {
digestURI(uri);
}
private void digestURI(final URI uri) {
this.scheme = uri.getScheme();
this.encodedSchemeSpecificPart = uri.getRawSchemeSpecificPart();
this.encodedAuthority = uri.getRawAuthority();
this.host = uri.getHost();
this.port = uri.getPort();
this.encodedUserInfo = uri.getRawUserInfo();
this.userInfo = uri.getUserInfo();
this.encodedPath = uri.getRawPath();
this.path = uri.getPath();
this.encodedQuery = uri.getRawQuery();
this.queryParams = parseQuery(uri.getRawQuery());
this.encodedFragment = uri.getRawFragment();
this.fragment = uri.getFragment();
}
private List<NameValuePair> parseQuery(final String query) {
if (!TextUtils.isEmpty(query)) {
return URLEncodedUtils.parse(query);
}
return null;
}
/**
* Builds a {@link java.net.URI} instance.
*
* @param charset
*/
public URI build(Charset charset) throws URISyntaxException {
return new URI(buildString(charset));
}
private String buildString(Charset charset) {
final StringBuilder sb = new StringBuilder();
if (this.scheme != null) {
sb.append(this.scheme).append(':');
}
if (this.encodedSchemeSpecificPart != null) {
sb.append(this.encodedSchemeSpecificPart);
} else {
if (this.encodedAuthority != null) {
sb.append("//").append(this.encodedAuthority);
} else if (this.host != null) {
sb.append("//");
if (this.encodedUserInfo != null) {
sb.append(this.encodedUserInfo).append("@");
} else if (this.userInfo != null) {
sb.append(encodeUserInfo(this.userInfo, charset)).append("@");
}
if (InetAddressUtils.isIPv6Address(this.host)) {
sb.append("[").append(this.host).append("]");
} else {
sb.append(this.host);
}
if (this.port >= 0) {
sb.append(":").append(this.port);
}
}
if (this.encodedPath != null) {
sb.append(normalizePath(this.encodedPath));
} else if (this.path != null) {
sb.append(encodePath(normalizePath(this.path), charset));
}
if (this.encodedQuery != null) {
sb.append("?").append(this.encodedQuery);
} else if (this.queryParams != null) {
sb.append("?").append(encodeQuery(this.queryParams, charset));
}
}
if (this.encodedFragment != null) {
sb.append("#").append(this.encodedFragment);
} else if (this.fragment != null) {
sb.append("#").append(encodeFragment(this.fragment, charset));
}
return sb.toString();
}
private String encodeUserInfo(final String userInfo, Charset charset) {
return URLEncodedUtils.encUserInfo(userInfo, charset);
}
private String encodePath(final String path, Charset charset) {
return URLEncodedUtils.encPath(path, charset).replace("+", "20%");
}
private String encodeQuery(final List<NameValuePair> params, Charset charset) {
return URLEncodedUtils.format(params, charset);
}
private String encodeFragment(final String fragment, Charset charset) {
return URLEncodedUtils.encFragment(fragment, charset);
}
/**
* Sets URI scheme.
*/
public URIBuilder setScheme(final String scheme) {
this.scheme = scheme;
return this;
}
/**
* Sets URI user info. The value is expected to be unescaped and may contain non ASCII
* characters.
*/
public URIBuilder setUserInfo(final String userInfo) {
this.userInfo = userInfo;
this.encodedSchemeSpecificPart = null;
this.encodedAuthority = null;
this.encodedUserInfo = null;
return this;
}
/**
* Sets URI user info as a combination of username and password. These values are expected to
* be unescaped and may contain non ASCII characters.
*/
public URIBuilder setUserInfo(final String username, final String password) {
return setUserInfo(username + ':' + password);
}
/**
* Sets URI host.
*/
public URIBuilder setHost(final String host) {
this.host = host;
this.encodedSchemeSpecificPart = null;
this.encodedAuthority = null;
return this;
}
/**
* Sets URI port.
*/
public URIBuilder setPort(final int port) {
this.port = port < 0 ? -1 : port;
this.encodedSchemeSpecificPart = null;
this.encodedAuthority = null;
return this;
}
/**
* Sets URI path. The value is expected to be unescaped and may contain non ASCII characters.
*/
public URIBuilder setPath(final String path) {
this.path = path;
this.encodedSchemeSpecificPart = null;
this.encodedPath = null;
return this;
}
/**
* Sets URI query.
* <p/>
* The value is expected to be encoded form data.
*/
public URIBuilder setQuery(final String query) {
this.queryParams = parseQuery(query);
this.encodedQuery = null;
this.encodedSchemeSpecificPart = null;
return this;
}
/**
* Adds parameter to URI query. The parameter name and value are expected to be unescaped
* and may contain non ASCII characters.
*/
public URIBuilder addParameter(final String param, final String value) {
if (this.queryParams == null) {
this.queryParams = new ArrayList<NameValuePair>();
}
this.queryParams.add(new BasicNameValuePair(param, value));
this.encodedQuery = null;
this.encodedSchemeSpecificPart = null;
return this;
}
/**
* Sets parameter of URI query overriding existing value if set. The parameter name and value
* are expected to be unescaped and may contain non ASCII characters.
*/
public URIBuilder setParameter(final String param, final String value) {
if (this.queryParams == null) {
this.queryParams = new ArrayList<NameValuePair>();
}
if (!this.queryParams.isEmpty()) {
for (final Iterator<NameValuePair> it = this.queryParams.iterator(); it.hasNext(); ) {
final NameValuePair nvp = it.next();
if (nvp.getName().equals(param)) {
it.remove();
}
}
}
this.queryParams.add(new BasicNameValuePair(param, value));
this.encodedQuery = null;
this.encodedSchemeSpecificPart = null;
return this;
}
/**
* Sets URI fragment. The value is expected to be unescaped and may contain non ASCII
* characters.
*/
public URIBuilder setFragment(final String fragment) {
this.fragment = fragment;
this.encodedFragment = null;
return this;
}
public String getScheme() {
return this.scheme;
}
public String getUserInfo() {
return this.userInfo;
}
public String getHost() {
return this.host;
}
public int getPort() {
return this.port;
}
public String getPath() {
return this.path;
}
public List<NameValuePair> getQueryParams() {
if (this.queryParams != null) {
return new ArrayList<NameValuePair>(this.queryParams);
} else {
return new ArrayList<NameValuePair>();
}
}
public String getFragment() {
return this.fragment;
}
private static String normalizePath(String path) {
if (path == null) {
return null;
}
int n = 0;
for (; n < path.length(); n++) {
if (path.charAt(n) != '/') {
break;
}
}
if (n > 1) {
path = path.substring(n - 1);
}
return path;
}
}