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HttpComponents Client Source Code Files
HttpComponents Client Source Code Files are provided in the source package file, httpcomponents-client-5.2-src.zip.
You can download httpcomponents-client-5.2-src.zip as described in the previous tutorial and go to the "httpclient5/src" sub-folder to view Source Code files.
You can also browse HttpComponents Client Source Code below:
✍: FYIcenter.com
⏎ org/apache/hc/client5/http/impl/auth/BasicScheme.java
/* * ==================================================================== * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.hc.client5.http.impl.auth; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import java.nio.charset.Charset; import java.nio.charset.StandardCharsets; import java.nio.charset.UnsupportedCharsetException; import java.security.Principal; import java.util.HashMap; import java.util.List; import java.util.Locale; import java.util.Map; import org.apache.hc.client5.http.utils.Base64; import org.apache.hc.client5.http.auth.AuthChallenge; import org.apache.hc.client5.http.auth.AuthScheme; import org.apache.hc.client5.http.auth.AuthScope; import org.apache.hc.client5.http.auth.AuthStateCacheable; import org.apache.hc.client5.http.auth.AuthenticationException; import org.apache.hc.client5.http.auth.Credentials; import org.apache.hc.client5.http.auth.CredentialsProvider; import org.apache.hc.client5.http.auth.MalformedChallengeException; import org.apache.hc.client5.http.auth.StandardAuthScheme; import org.apache.hc.client5.http.protocol.HttpClientContext; import org.apache.hc.client5.http.utils.ByteArrayBuilder; import org.apache.hc.core5.http.HttpHost; import org.apache.hc.core5.http.HttpRequest; import org.apache.hc.core5.http.NameValuePair; import org.apache.hc.core5.http.protocol.HttpContext; import org.apache.hc.core5.util.Args; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Basic authentication scheme as defined in RFC 2617. * * @since 4.0 */ @AuthStateCacheable public class BasicScheme implements AuthScheme, Serializable { private static final long serialVersionUID = -1931571557597830536L; private static final Logger LOG = LoggerFactory.getLogger(BasicScheme.class); private final Map<String, String> paramMap; private transient Charset defaultCharset; private transient ByteArrayBuilder buffer; private transient Base64 base64codec; private boolean complete; private String username; private char[] password; /** * @since 4.3 */ public BasicScheme(final Charset charset) { this.paramMap = new HashMap<>(); this.defaultCharset = charset != null ? charset : StandardCharsets.US_ASCII; this.complete = false; } public BasicScheme() { this(StandardCharsets.US_ASCII); } private void applyCredentials(final Credentials credentials) { this.username = credentials.getUserPrincipal().getName(); this.password = credentials.getPassword(); } private void clearCredentials() { this.username = null; this.password = null; } public void initPreemptive(final Credentials credentials) { if (credentials != null) { applyCredentials(credentials); } else { clearCredentials(); } } @Override public String getName() { return StandardAuthScheme.BASIC; } @Override public boolean isConnectionBased() { return false; } @Override public String getRealm() { return this.paramMap.get("realm"); } @Override public void processChallenge( final AuthChallenge authChallenge, final HttpContext context) throws MalformedChallengeException { this.paramMap.clear(); final List<NameValuePair> params = authChallenge.getParams(); if (params != null) { for (final NameValuePair param: params) { this.paramMap.put(param.getName().toLowerCase(Locale.ROOT), param.getValue()); } } this.complete = true; } @Override public boolean isChallengeComplete() { return this.complete; } @Override public boolean isResponseReady( final HttpHost host, final CredentialsProvider credentialsProvider, final HttpContext context) throws AuthenticationException { Args.notNull(host, "Auth host"); Args.notNull(credentialsProvider, "CredentialsProvider"); final AuthScope authScope = new AuthScope(host, getRealm(), getName()); final Credentials credentials = credentialsProvider.getCredentials( authScope, context); if (credentials != null) { applyCredentials(credentials); return true; } if (LOG.isDebugEnabled()) { final HttpClientContext clientContext = HttpClientContext.adapt(context); final String exchangeId = clientContext.getExchangeId(); LOG.debug("{} No credentials found for auth scope [{}]", exchangeId, authScope); } clearCredentials(); return false; } @Override public Principal getPrincipal() { return null; } private void validateUsername() throws AuthenticationException { if (username == null) { throw new AuthenticationException("User credentials not set"); } for (int i = 0; i < username.length(); i++) { final char ch = username.charAt(i); if (Character.isISOControl(ch)) { throw new AuthenticationException("Username must not contain any control characters"); } if (ch == ':') { throw new AuthenticationException("Username contains a colon character and is invalid"); } } } @Override public String generateAuthResponse( final HttpHost host, final HttpRequest request, final HttpContext context) throws AuthenticationException { validateUsername(); if (this.buffer == null) { this.buffer = new ByteArrayBuilder(64); } else { this.buffer.reset(); } final Charset charset = AuthSchemeSupport.parseCharset(paramMap.get("charset"), defaultCharset); this.buffer.charset(charset); this.buffer.append(this.username).append(":").append(this.password); if (this.base64codec == null) { this.base64codec = new Base64(); } final byte[] encodedCreds = this.base64codec.encode(this.buffer.toByteArray()); this.buffer.reset(); return StandardAuthScheme.BASIC + " " + new String(encodedCreds, 0, encodedCreds.length, StandardCharsets.US_ASCII); } private void writeObject(final ObjectOutputStream out) throws IOException { out.defaultWriteObject(); out.writeUTF(this.defaultCharset.name()); } @SuppressWarnings("unchecked") private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); try { this.defaultCharset = Charset.forName(in.readUTF()); } catch (final UnsupportedCharsetException ex) { this.defaultCharset = StandardCharsets.US_ASCII; } } private void readObjectNoData() { } @Override public String toString() { return getName() + this.paramMap; } }
⏎ org/apache/hc/client5/http/impl/auth/BasicScheme.java
Or download all them as a single archive file:
File name: httpclient5-5.2-fyi.zip File size: 625318 bytes Release date: 2022-11-10 Download
⇒ Download and Install HttpComponents Core Binary Package
⇐ Download and Install HttpComponents Client Source Package
2023-03-26, 13962👍, 1💬
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