import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
private HttpClientContext convertHttpClientContext(Request request, Site site, Proxy proxy) {
    HttpClientContext httpContext = new HttpClientContext();
    if (proxy != null && proxy.getUsername() != null) {
        AuthState authState = new AuthState();
        authState.update(new BasicScheme(ChallengeState.PROXY), new UsernamePasswordCredentials(proxy.getUsername(), proxy.getPassword()));
        httpContext.setAttribute(HttpClientContext.PROXY_AUTH_STATE, authState);
    }
    if (request.getCookies() != null && !request.getCookies().isEmpty()) {
        CookieStore cookieStore = new BasicCookieStore();
        for (Map.Entry<String, String> cookieEntry : request.getCookies().entrySet()) {
            BasicClientCookie cookie1 = new BasicClientCookie(cookieEntry.getKey(), cookieEntry.getValue());
            cookie1.setDomain(UrlUtils.removePort(UrlUtils.getDomain(request.getUrl())));
            cookieStore.addCookie(cookie1);
        }
        httpContext.setCookieStore(cookieStore);
    }
    return httpContext;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
@SuppressWarnings("unchecked")
private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();
    this.credentialsCharset = CharsetUtils.get(in.readUTF());
    if (this.credentialsCharset == null) {
        this.credentialsCharset = Consts.ASCII;
    }
    this.challengeState = (ChallengeState) in.readObject();
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
@Override
public void process(HttpRequest request, HttpContext context) throws HttpException, IOException {
    HttpClientContext clientContext = HttpClientContext.adapt(context);
    AuthState proxyAuthState = clientContext.getProxyAuthState();

    // If there's no auth scheme available yet, try to initialize it preemptively
    if (proxyAuthState.getAuthScheme() == null) {
        CredentialsProvider credsProvider = clientContext.getCredentialsProvider();
        RouteInfo route = clientContext.getHttpRoute();
        if (route == null) {
            log.debug("No route found for {}", clientContext.getTargetHost());
            return;
        }

        HttpHost proxyHost = route.getProxyHost();
        if (proxyHost == null) {
            log.warn("No proxy host found in route {} for host {}", route, clientContext.getTargetHost());
            return;
        }

        Credentials creds = credsProvider.getCredentials(
                new AuthScope(proxyHost.getHostName(), proxyHost.getPort()));
        if (creds == null) {
            log.info("No credentials found for proxy: " + proxyHost);
            return;
        }
        proxyAuthState.update(new BasicScheme(ChallengeState.PROXY), creds);
    }
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>RFC2617Scheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public RFC2617SchemeHC4(final ChallengeState challengeState) {
    super(challengeState);
    this.params = new HashMap<String, String>();
    this.credentialsCharset = Consts.ASCII;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of {@code RFC2617Scheme} with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public RFC2617Scheme(final ChallengeState challengeState) {
    super(challengeState);
    this.params = new HashMap<String, String>();
    this.credentialsCharset = Consts.ASCII;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>RFC2617Scheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 */
public RFC2617Scheme(final ChallengeState challengeState) {
    super(challengeState);
    this.params = new HashMap<String, String>();
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>DigestScheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 */
public DigestScheme(final ChallengeState challengeState) {
    super(challengeState);
    this.complete = false;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>BasicScheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 */
public BasicScheme(final ChallengeState challengeState) {
    super(challengeState);
    this.complete = false;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>AuthSchemeBase</tt> with the given challenge
 * state.
 *
 * @since 4.2
 */
public AuthSchemeBase(final ChallengeState challengeState) {
    super();
    this.challengeState = challengeState;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Returns <code>true</code> if authenticating against a proxy, <code>false</code>
 * otherwise.
 */
public boolean isProxy() {
    return this.challengeState != null && this.challengeState == ChallengeState.PROXY;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Returns {@link ChallengeState} value or <code>null</code> if unchallenged.
 *
 * @since 4.2
 */
public ChallengeState getChallengeState() {
    return this.challengeState;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>BasicScheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public BasicSchemeHC4(final ChallengeState challengeState) {
    super(challengeState);
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>DigestScheme</tt> with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public DigestSchemeHC4(final ChallengeState challengeState) {
    super(challengeState);
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of <tt>AuthSchemeBase</tt> with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public AuthSchemeBaseHC4(final ChallengeState challengeState) {
    super();
    this.challengeState = challengeState;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of {@code DigestScheme} with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public DigestScheme(final ChallengeState challengeState) {
    super(challengeState);
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of {@code BasicScheme} with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public BasicScheme(final ChallengeState challengeState) {
    super(challengeState);
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Creates an instance of {@code AuthSchemeBase} with the given challenge
 * state.
 *
 * @since 4.2
 *
 * @deprecated (4.3) do not use.
 */
@Deprecated
public AuthSchemeBase(final ChallengeState challengeState) {
    super();
    this.challengeState = challengeState;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Returns {@code true} if authenticating against a proxy, {@code false}
 * otherwise.
 */
public boolean isProxy() {
    return this.challengeState != null && this.challengeState == ChallengeState.PROXY;
}
 

import org.apache.http.auth.ChallengeState; //导入依赖的package包/类
/**
 * Returns {@link ChallengeState} value or {@code null} if unchallenged.
 *
 * @since 4.2
 */
public ChallengeState getChallengeState() {
    return this.challengeState;
}