Example usage for org.apache.http.protocol HttpContext setAttribute

List of usage examples for org.apache.http.protocol HttpContext setAttribute

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Introduction

In this page you can find the example usage for org.apache.http.protocol HttpContext setAttribute.

Prototype

void setAttribute(String str, Object obj);

Source Link

Usage

From source file:org.apache.jmeter.protocol.http.sampler.HTTPHC4Impl.java

/**
 * Configure the UserToken so that the SSL context is reused
 * See <a href="https://bz.apache.org/bugzilla/show_bug.cgi?id=57804">Bug 57804</a>
 * @param localContext {@link HttpContext}
 *///  w  w  w  .j  a v a 2s.c  o  m
private void setupClientContextBeforeSample(HttpContext localContext) {
    Object userToken = null;
    // During recording JMeterContextService.getContext().getVariables() is null
    JMeterVariables jMeterVariables = JMeterContextService.getContext().getVariables();
    if (jMeterVariables != null) {
        userToken = jMeterVariables.getObject(USER_TOKEN);
    }
    if (userToken != null) {
        if (log.isDebugEnabled()) {
            log.debug("Found user token:" + userToken + " as JMeter variable:" + USER_TOKEN
                    + ", storing it in HttpContext");
        }
        localContext.setAttribute(HttpClientContext.USER_TOKEN, userToken);
    } else {
        // It would be better to create a ClientSessionManager that would compute this value
        // for now it can be Thread.currentThread().getName() but must be changed when we would change 
        // the Thread per User model
        String userId = Thread.currentThread().getName();
        if (log.isDebugEnabled()) {
            log.debug("Storing in HttpContext the user token:" + userId);
        }
        localContext.setAttribute(HttpClientContext.USER_TOKEN, userId);
    }
}

From source file:com.tandong.sa.aq.AbstractAjaxCallback.java

private void httpDo(HttpUriRequest hr, String url, Map<String, String> headers, AjaxStatus status)
        throws ClientProtocolException, IOException {

    if (AGENT != null) {
        hr.addHeader("User-Agent", AGENT);
    }//from   w ww.ja  va2s  .  c  om

    if (headers != null) {
        for (String name : headers.keySet()) {
            hr.addHeader(name, headers.get(name));
        }

    }

    if (GZIP && (headers == null || !headers.containsKey("Accept-Encoding"))) {
        hr.addHeader("Accept-Encoding", "gzip");
    }

    String cookie = makeCookie();
    if (cookie != null) {
        hr.addHeader("Cookie", cookie);
    }

    if (ah != null) {
        ah.applyToken(this, hr);
    }

    DefaultHttpClient client = getClient();

    HttpParams hp = hr.getParams();
    if (proxy != null)
        hp.setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
    if (timeout > 0) {
        AQUtility.debug("timeout param", CoreConnectionPNames.CONNECTION_TIMEOUT);
        hp.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, timeout);
        hp.setParameter(CoreConnectionPNames.SO_TIMEOUT, timeout);
    }

    HttpContext context = new BasicHttpContext();
    CookieStore cookieStore = new BasicCookieStore();
    context.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

    request = hr;

    if (abort) {
        throw new IOException("Aborted");
    }

    HttpResponse response = client.execute(hr, context);

    byte[] data = null;

    String redirect = url;

    int code = response.getStatusLine().getStatusCode();
    String message = response.getStatusLine().getReasonPhrase();
    String error = null;

    HttpEntity entity = response.getEntity();

    Header[] hs = response.getAllHeaders();
    HashMap<String, String> responseHeaders = new HashMap<String, String>(hs.length);
    for (Header h : hs) {
        responseHeaders.put(h.getName(), h.getValue());
    }
    setResponseHeaders(responseHeaders);

    File file = null;

    if (code < 200 || code >= 300) {

        try {

            if (entity != null) {

                InputStream is = entity.getContent();
                byte[] s = toData(getEncoding(entity), is);

                error = new String(s, "UTF-8");

                AQUtility.debug("error", error);

            }
        } catch (Exception e) {
            AQUtility.debug(e);
        }

    } else {

        HttpHost currentHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        HttpUriRequest currentReq = (HttpUriRequest) context.getAttribute(ExecutionContext.HTTP_REQUEST);
        redirect = currentHost.toURI() + currentReq.getURI();

        int size = Math.max(32, Math.min(1024 * 64, (int) entity.getContentLength()));

        OutputStream os = null;
        InputStream is = null;

        try {
            file = getPreFile();

            if (file == null) {
                os = new PredefinedBAOS(size);
            } else {
                file.createNewFile();
                os = new BufferedOutputStream(new FileOutputStream(file));
            }

            //AQUtility.time("copy");

            copy(entity.getContent(), os, getEncoding(entity), (int) entity.getContentLength());

            //AQUtility.timeEnd("copy", 0);

            os.flush();

            if (file == null) {
                data = ((PredefinedBAOS) os).toByteArray();
            } else {
                if (!file.exists() || file.length() == 0) {
                    file = null;
                }
            }

        } finally {
            AQUtility.close(is);
            AQUtility.close(os);
        }

    }

    AQUtility.debug("response", code);
    if (data != null) {
        AQUtility.debug(data.length, url);
    }

    status.code(code).message(message).error(error).redirect(redirect).time(new Date()).data(data).file(file)
            .client(client).context(context).headers(response.getAllHeaders());

}

From source file:com.androidquery.callback.AbstractAjaxCallback.java

private void httpDo(HttpUriRequest hr, String url, Map<String, String> headers, AjaxStatus status)
        throws ClientProtocolException, IOException {

    if (AGENT != null) {
        hr.addHeader("User-Agent", AGENT);
    }//from  w w w  . j a  va2 s  .  co  m

    if (headers != null) {
        for (String name : headers.keySet()) {
            hr.addHeader(name, headers.get(name));
        }

    }

    if (GZIP && (headers == null || !headers.containsKey("Accept-Encoding"))) {
        hr.addHeader("Accept-Encoding", "gzip");
    }

    String cookie = makeCookie();
    if (cookie != null) {
        hr.addHeader("Cookie", cookie);
    }

    if (ah != null) {
        ah.applyToken(this, hr);
    }

    DefaultHttpClient client = getClient();

    HttpParams hp = hr.getParams();
    if (proxy != null)
        hp.setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
    if (timeout > 0) {
        hp.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, timeout);
        hp.setParameter(CoreConnectionPNames.SO_TIMEOUT, timeout);
    }

    HttpContext context = new BasicHttpContext();
    CookieStore cookieStore = new BasicCookieStore();
    context.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

    request = hr;

    if (abort) {
        throw new IOException("Aborted");
    }

    HttpResponse response = null;

    try {
        response = client.execute(hr, context);
    } catch (HttpHostConnectException e) {

        //if proxy is used, automatically retry without proxy
        if (proxy != null) {
            AQUtility.debug("proxy failed, retrying without proxy");
            hp.setParameter(ConnRoutePNames.DEFAULT_PROXY, null);
            response = client.execute(hr, context);
        } else {
            throw e;
        }
    }

    byte[] data = null;

    String redirect = url;

    int code = response.getStatusLine().getStatusCode();
    String message = response.getStatusLine().getReasonPhrase();
    String error = null;

    HttpEntity entity = response.getEntity();

    File file = null;

    if (code < 200 || code >= 300) {

        InputStream is = null;

        try {

            if (entity != null) {

                is = entity.getContent();
                byte[] s = toData(getEncoding(entity), is);

                error = new String(s, "UTF-8");

                AQUtility.debug("error", error);

            }
        } catch (Exception e) {
            AQUtility.debug(e);
        } finally {
            AQUtility.close(is);
        }

    } else {

        HttpHost currentHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        HttpUriRequest currentReq = (HttpUriRequest) context.getAttribute(ExecutionContext.HTTP_REQUEST);
        redirect = currentHost.toURI() + currentReq.getURI();

        int size = Math.max(32, Math.min(1024 * 64, (int) entity.getContentLength()));

        OutputStream os = null;
        InputStream is = null;

        try {
            file = getPreFile();

            if (file == null) {
                os = new PredefinedBAOS(size);
            } else {
                file.createNewFile();
                os = new BufferedOutputStream(new FileOutputStream(file));
            }

            //AQUtility.time("copy");

            copy(entity.getContent(), os, getEncoding(entity), (int) entity.getContentLength());

            //AQUtility.timeEnd("copy", 0);

            os.flush();

            if (file == null) {
                data = ((PredefinedBAOS) os).toByteArray();
            } else {
                if (!file.exists() || file.length() == 0) {
                    file = null;
                }
            }

        } finally {
            AQUtility.close(is);
            AQUtility.close(os);
        }

    }

    AQUtility.debug("response", code);
    if (data != null) {
        AQUtility.debug(data.length, url);
    }

    status.code(code).message(message).error(error).redirect(redirect).time(new Date()).data(data).file(file)
            .client(client).context(context).headers(response.getAllHeaders());

}

From source file:com.appbase.androidquery.callback.AbstractAjaxCallback.java

private void httpDo(HttpUriRequest hr, String url, Map<String, String> headers, AjaxStatus status)
        throws ClientProtocolException, IOException {

    if (AGENT != null) {
        hr.addHeader("User-Agent", AGENT);
    }/*from  w  w  w  . j a  v  a 2  s .  c o m*/

    if (headers != null) {
        for (String name : headers.keySet()) {
            hr.addHeader(name, headers.get(name));
        }

    }

    if (GZIP && (headers == null || !headers.containsKey("Accept-Encoding"))) {
        hr.addHeader("Accept-Encoding", "gzip");
    }

    String cookie = makeCookie();
    if (cookie != null) {
        hr.addHeader("Cookie", cookie);
    }

    if (ah != null) {
        ah.applyToken(this, hr);
    }

    DefaultHttpClient client = getClient();

    HttpParams hp = hr.getParams();
    if (proxy != null)
        hp.setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
    if (timeout > 0) {
        hp.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, timeout);
        hp.setParameter(CoreConnectionPNames.SO_TIMEOUT, timeout);
    }

    HttpContext context = new BasicHttpContext();
    CookieStore cookieStore = new BasicCookieStore();
    context.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

    request = hr;

    if (abort) {
        throw new IOException("Aborted");
    }

    HttpResponse response = null;

    try {
        //response = client.execute(hr, context);
        response = execute(hr, client, context);
    } catch (HttpHostConnectException e) {

        //if proxy is used, automatically retry without proxy
        if (proxy != null) {
            AQUtility.debug("proxy failed, retrying without proxy");
            hp.setParameter(ConnRoutePNames.DEFAULT_PROXY, null);
            //response = client.execute(hr, context);
            response = execute(hr, client, context);
        } else {
            throw e;
        }
    }

    byte[] data = null;

    String redirect = url;

    int code = response.getStatusLine().getStatusCode();
    String message = response.getStatusLine().getReasonPhrase();
    String error = null;

    HttpEntity entity = response.getEntity();

    File file = null;

    if (code < 200 || code >= 300) {

        InputStream is = null;

        try {

            if (entity != null) {

                is = entity.getContent();
                byte[] s = toData(getEncoding(entity), is);

                error = new String(s, "UTF-8");

                AQUtility.debug("error", error);

            }
        } catch (Exception e) {
            AQUtility.debug(e);
        } finally {
            AQUtility.close(is);
        }

    } else {

        HttpHost currentHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        HttpUriRequest currentReq = (HttpUriRequest) context.getAttribute(ExecutionContext.HTTP_REQUEST);
        redirect = currentHost.toURI() + currentReq.getURI();

        int size = Math.max(32, Math.min(1024 * 64, (int) entity.getContentLength()));

        OutputStream os = null;
        InputStream is = null;

        try {
            file = getPreFile();

            if (file == null) {
                os = new PredefinedBAOS(size);
            } else {
                file.createNewFile();
                os = new BufferedOutputStream(new FileOutputStream(file));
            }

            is = entity.getContent();
            if ("gzip".equalsIgnoreCase(getEncoding(entity))) {
                is = new GZIPInputStream(is);
            }

            copy(is, os, (int) entity.getContentLength());

            os.flush();

            if (file == null) {
                data = ((PredefinedBAOS) os).toByteArray();
            } else {
                if (!file.exists() || file.length() == 0) {
                    file = null;
                }
            }

        } finally {
            AQUtility.close(is);
            AQUtility.close(os);
        }

    }

    AQUtility.debug("response", code);
    if (data != null) {
        AQUtility.debug(data.length, url);
    }

    status.code(code).message(message).error(error).redirect(redirect).time(new Date()).data(data).file(file)
            .client(client).context(context).headers(response.getAllHeaders());

}

From source file:com.amos.tool.SelfRedirectStrategy.java

public URI getLocationURI(final HttpRequest request, final HttpResponse response, final HttpContext context)
        throws ProtocolException {
    Args.notNull(request, "HTTP request");
    Args.notNull(response, "HTTP response");
    Args.notNull(context, "HTTP context");

    final HttpClientContext clientContext = HttpClientContext.adapt(context);

    //get the location header to find out where to redirect to
    final Header locationHeader = response.getFirstHeader("location");
    if (locationHeader == null) {
        // got a redirect response, but no location header
        throw new ProtocolException(
                "Received redirect response " + response.getStatusLine() + " but no location header");
    }/*from  w  w  w . j  a va2  s .c o  m*/
    final String location = locationHeader.getValue();
    if (this.log.isDebugEnabled()) {
        this.log.debug("Redirect requested to location '" + location + "'");
    }

    final RequestConfig config = clientContext.getRequestConfig();

    URI uri = createLocationURI(location.replaceAll(" ", "%20"));

    // rfc2616 demands the location value be a complete URI
    // Location       = "Location" ":" absoluteURI
    try {
        if (!uri.isAbsolute()) {
            if (!config.isRelativeRedirectsAllowed()) {
                throw new ProtocolException("Relative redirect location '" + uri + "' not allowed");
            }
            // Adjust location URI
            final HttpHost target = clientContext.getTargetHost();
            Asserts.notNull(target, "Target host");
            final URI requestURI = new URI(request.getRequestLine().getUri());
            final URI absoluteRequestURI = URIUtils.rewriteURI(requestURI, target, false);
            uri = URIUtils.resolve(absoluteRequestURI, uri);
        }
    } catch (final URISyntaxException ex) {
        throw new ProtocolException(ex.getMessage(), ex);
    }

    RedirectLocations redirectLocations = (RedirectLocations) clientContext
            .getAttribute(HttpClientContext.REDIRECT_LOCATIONS);
    if (redirectLocations == null) {
        redirectLocations = new RedirectLocations();
        context.setAttribute(HttpClientContext.REDIRECT_LOCATIONS, redirectLocations);
    }
    if (!config.isCircularRedirectsAllowed()) {
        if (redirectLocations.contains(uri)) {
            throw new CircularRedirectException("Circular redirect to '" + uri + "'");
        }
    }
    redirectLocations.add(uri);
    return uri;
}

From source file:spaceRedirectStrategy.java

public URI getLocationURI(final HttpRequest request, final HttpResponse response, final HttpContext context)
        throws ProtocolException {
    if (response == null) {
        throw new IllegalArgumentException("HTTP response may not be null");
    }//from  ww w  . j  av a  2s. co  m
    //get the location header to find out where to redirect to
    Header locationHeader = response.getFirstHeader("location");
    if (locationHeader == null) {
        // got a redirect response, but no location header
        throw new ProtocolException(
                "Received redirect response " + response.getStatusLine() + " but no location header");
    }
    String location = locationHeader.getValue().replaceAll(" ", "%20");
    ;
    if (this.log.isDebugEnabled()) {
        this.log.debug("Redirect requested to location '" + location + "'");
    }

    URI uri = createLocationURI(location);

    HttpParams params = response.getParams();
    // rfc2616 demands the location value be a complete URI
    // Location       = "Location" ":" absoluteURI
    if (!uri.isAbsolute()) {
        if (params.isParameterTrue(ClientPNames.REJECT_RELATIVE_REDIRECT)) {
            throw new ProtocolException("Relative redirect location '" + uri + "' not allowed");
        }
        // Adjust location URI
        HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        if (target == null) {
            throw new IllegalStateException("Target host not available " + "in the HTTP context");
        }
        try {
            URI requestURI = new URI(request.getRequestLine().getUri());
            URI absoluteRequestURI = URIUtils.rewriteURI(requestURI, target, true);
            uri = URIUtils.resolve(absoluteRequestURI, uri);
        } catch (URISyntaxException ex) {
            throw new ProtocolException(ex.getMessage(), ex);
        }
    }

    if (params.isParameterFalse(ClientPNames.ALLOW_CIRCULAR_REDIRECTS)) {

        RedirectLocations redirectLocations = (RedirectLocations) context.getAttribute(REDIRECT_LOCATIONS);

        if (redirectLocations == null) {
            redirectLocations = new RedirectLocations();
            context.setAttribute(REDIRECT_LOCATIONS, redirectLocations);
        }

        URI redirectURI;
        if (uri.getFragment() != null) {
            try {
                HttpHost target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
                redirectURI = URIUtils.rewriteURI(uri, target, true);
            } catch (URISyntaxException ex) {
                throw new ProtocolException(ex.getMessage(), ex);
            }
        } else {
            redirectURI = uri;
        }

        if (redirectLocations.contains(redirectURI)) {
            throw new CircularRedirectException("Circular redirect to '" + redirectURI + "'");
        } else {
            //redirectLocations.add(redirectURI);
        }
    }

    return uri;
}

From source file:clj_httpc.CustomRedirectStrategy.java

public URI getLocationURI(final HttpRequest request, final HttpResponse response, final HttpContext context)
        throws ProtocolException {
    if (response == null) {
        throw new IllegalArgumentException("HTTP response may not be null");
    }/*from  w  w  w  .ja  v a 2 s. c  o m*/
    //get the location header to find out where to redirect to
    Header locationHeader = response.getFirstHeader("location");
    if (locationHeader == null) {
        // got a redirect response, but no location header
        throw new ProtocolException(
                "Received redirect response " + response.getStatusLine() + " but no location header");
    }
    String location = locationHeader.getValue();
    if (this.log.isDebugEnabled()) {
        this.log.debug("Redirect requested to location '" + location + "'");
    }

    URI uri = createLocationURI(location);

    HttpParams params = response.getParams();
    // rfc2616 demands the location value be a complete URI
    // Location       = "Location" ":" absoluteURI
    if (!uri.isAbsolute()) {
        if (params.isParameterTrue(ClientPNames.REJECT_RELATIVE_REDIRECT)) {
            throw new ProtocolException("Relative redirect location '" + uri + "' not allowed");
        }
        // Adjust location URI
        HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        if (target == null) {
            throw new IllegalStateException("Target host not available " + "in the HTTP context");
        }
        try {
            URI requestURI = new URI(request.getRequestLine().getUri());
            URI absoluteRequestURI = URIUtils.rewriteURI(requestURI, target, true);
            uri = URIUtils.resolve(absoluteRequestURI, uri);
        } catch (URISyntaxException ex) {
            throw new ProtocolException(ex.getMessage(), ex);
        }
    }

    if (params.isParameterFalse(ClientPNames.ALLOW_CIRCULAR_REDIRECTS)) {

        CustomRedirectLocations redirectLocations = (CustomRedirectLocations) context
                .getAttribute(REDIRECT_LOCATIONS);

        if (redirectLocations == null) {
            redirectLocations = new CustomRedirectLocations();
            context.setAttribute(REDIRECT_LOCATIONS, redirectLocations);
        }

        URI redirectURI;
        if (uri.getFragment() != null) {
            try {
                HttpHost target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
                redirectURI = URIUtils.rewriteURI(uri, target, true);
            } catch (URISyntaxException ex) {
                throw new ProtocolException(ex.getMessage(), ex);
            }
        } else {
            redirectURI = uri;
        }

        if (redirectLocations.contains(redirectURI)) {
            throw new CircularRedirectException("Circular redirect to '" + redirectURI + "'");
        } else {
            int statusCode = response.getStatusLine().getStatusCode();
            redirectLocations.add(redirectURI, statusCode);
        }
    }

    return uri;
}

From source file:com.mongolduu.android.ng.misc.RedirectHandler.java

public URI getLocationURI(final HttpResponse response, final HttpContext context) throws ProtocolException {
    if (response == null) {
        throw new IllegalArgumentException("HTTP response may not be null");
    }/*from  w w w .  j  ava  2 s  .  co m*/
    // get the location header to find out where to redirect to
    Header locationHeader = response.getFirstHeader("location");
    if (locationHeader == null) {
        // got a redirect response, but no location header
        throw new ProtocolException(
                "Received redirect response " + response.getStatusLine() + " but no location header");
    }
    // HERE IS THE MODIFIED LINE OF CODE
    String location = locationHeader.getValue().replaceAll(" ", "%20");

    URI uri;
    try {
        uri = new URI(location);
    } catch (URISyntaxException ex) {
        throw new ProtocolException("Invalid redirect URI: " + location, ex);
    }

    HttpParams params = response.getParams();
    // rfc2616 demands the location value be a complete URI
    // Location = "Location" ":" absoluteURI
    if (!uri.isAbsolute()) {
        if (params.isParameterTrue(ClientPNames.REJECT_RELATIVE_REDIRECT)) {
            throw new ProtocolException("Relative redirect location '" + uri + "' not allowed");
        }
        // Adjust location URI
        HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        if (target == null) {
            throw new IllegalStateException("Target host not available " + "in the HTTP context");
        }

        HttpRequest request = (HttpRequest) context.getAttribute(ExecutionContext.HTTP_REQUEST);

        try {
            URI requestURI = new URI(request.getRequestLine().getUri());
            URI absoluteRequestURI = URIUtils.rewriteURI(requestURI, target, true);
            uri = URIUtils.resolve(absoluteRequestURI, uri);
        } catch (URISyntaxException ex) {
            throw new ProtocolException(ex.getMessage(), ex);
        }
    }

    if (params.isParameterFalse(ClientPNames.ALLOW_CIRCULAR_REDIRECTS)) {

        RedirectLocations redirectLocations = (RedirectLocations) context.getAttribute(REDIRECT_LOCATIONS);

        if (redirectLocations == null) {
            redirectLocations = new RedirectLocations();
            context.setAttribute(REDIRECT_LOCATIONS, redirectLocations);
        }

        URI redirectURI;
        if (uri.getFragment() != null) {
            try {
                HttpHost target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
                redirectURI = URIUtils.rewriteURI(uri, target, true);
            } catch (URISyntaxException ex) {
                throw new ProtocolException(ex.getMessage(), ex);
            }
        } else {
            redirectURI = uri;
        }

        if (redirectLocations.contains(redirectURI)) {
            throw new CircularRedirectException("Circular redirect to '" + redirectURI + "'");
        } else {
            redirectLocations.add(redirectURI);
        }
    }

    return uri;
}

From source file:com.amytech.android.library.utils.asynchttp.MyRedirectHandler.java

@Override
public URI getLocationURI(final HttpResponse response, final HttpContext context) throws ProtocolException {
    if (response == null) {
        throw new IllegalArgumentException("HTTP response may not be null");
    }//from w ww.j  a v a2  s  .co  m
    // get the location header to find out where to redirect to
    Header locationHeader = response.getFirstHeader("location");
    if (locationHeader == null) {
        // got a redirect response, but no location header
        throw new ProtocolException(
                "Received redirect response " + response.getStatusLine() + " but no location header");
    }
    // HERE IS THE MODIFIED LINE OF CODE
    String location = locationHeader.getValue().replaceAll(" ", "%20");

    URI uri;
    try {
        uri = new URI(location);
    } catch (URISyntaxException ex) {
        throw new ProtocolException("Invalid redirect URI: " + location, ex);
    }

    HttpParams params = response.getParams();
    // rfc2616 demands the location value be a complete URI
    // Location = "Location" ":" absoluteURI
    if (!uri.isAbsolute()) {
        if (params.isParameterTrue(ClientPNames.REJECT_RELATIVE_REDIRECT)) {
            throw new ProtocolException("Relative redirect location '" + uri + "' not allowed");
        }
        // Adjust location URI
        HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
        if (target == null) {
            throw new IllegalStateException("Target host not available " + "in the HTTP context");
        }

        HttpRequest request = (HttpRequest) context.getAttribute(ExecutionContext.HTTP_REQUEST);

        try {
            URI requestURI = new URI(request.getRequestLine().getUri());
            URI absoluteRequestURI = URIUtils.rewriteURI(requestURI, target, true);
            uri = URIUtils.resolve(absoluteRequestURI, uri);
        } catch (URISyntaxException ex) {
            throw new ProtocolException(ex.getMessage(), ex);
        }
    }

    if (params.isParameterFalse(ClientPNames.ALLOW_CIRCULAR_REDIRECTS)) {

        RedirectLocations redirectLocations = (RedirectLocations) context.getAttribute(REDIRECT_LOCATIONS);

        if (redirectLocations == null) {
            redirectLocations = new RedirectLocations();
            context.setAttribute(REDIRECT_LOCATIONS, redirectLocations);
        }

        URI redirectURI;
        if (uri.getFragment() != null) {
            try {
                HttpHost target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
                redirectURI = URIUtils.rewriteURI(uri, target, true);
            } catch (URISyntaxException ex) {
                throw new ProtocolException(ex.getMessage(), ex);
            }
        } else {
            redirectURI = uri;
        }

        if (redirectLocations.contains(redirectURI)) {
            throw new CircularRedirectException("Circular redirect to '" + redirectURI + "'");
        } else {
            redirectLocations.add(redirectURI);
        }
    }

    return uri;
}