Example usage for javax.servlet.http HttpServletRequest getHeader

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletRequest getHeader.

Prototype

public String getHeader(String name);

Source Link

Document

Returns the value of the specified request header as a String.

Usage

From source file:com.eastcom.baseframe.web.common.utils.Servlets.java

/**
 * ??//  w w  w .j a  v a  2  s  .  c  o  m
 * 
 * @param request
 * @return
 */
public static String getUserAgent(HttpServletRequest request) {
    return request.getHeader("user-agent");
}

From source file:com.liusoft.dlog4j.util.RequestUtils.java

/**
 * ?header????//from   w  ww .  jav  a 2 s. co  m
 * @param req
 * @param name
 * @return
 */
public static String getHeader(HttpServletRequest req, String name) {
    String value = req.getHeader(name);
    if (value != null)
        return value;
    Enumeration names = req.getHeaderNames();
    while (names.hasMoreElements()) {
        String n = (String) names.nextElement();
        if (n.equalsIgnoreCase(name)) {
            return req.getHeader(n);
        }
    }
    return null;
}

From source file:cn.com.qiqi.order.utils.Servlets.java

/**
 * ?? If-None-Match Header, Etag?./* ww w  .jav a  2 s.  c  o m*/
 * 
 * Etag, checkIfNoneMatchfalse, 304 not modify status.
 * 
 * @param etag ETag.
 */
public static boolean checkIfNoneMatchEtag(HttpServletRequest request, HttpServletResponse response,
        String etag) {
    String headerValue = request.getHeader(HttpHeaders.IF_NONE_MATCH);
    if (headerValue != null) {
        boolean conditionSatisfied = false;
        if (!"*".equals(headerValue)) {
            StringTokenizer commaTokenizer = new StringTokenizer(headerValue, ",");

            while (!conditionSatisfied && commaTokenizer.hasMoreTokens()) {
                String currentToken = commaTokenizer.nextToken();
                if (currentToken.trim().equals(etag)) {
                    conditionSatisfied = true;
                }
            }
        } else {
            conditionSatisfied = true;
        }

        if (conditionSatisfied) {
            response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
            response.setHeader(HttpHeaders.ETAG, etag);
            return false;
        }
    }
    return true;
}

From source file:com.npower.wall.TagUtil.java

/**
 * Get the UA from request if any otherwise use the parameter passed
 *//*www.  ja  v a2  s  .  c o  m*/

public static String getUA(HttpServletRequest request) {
    String UA = "";
    if (request.getParameter("UA") != null) {
        UA = request.getParameter("UA");
    } else {
        UA = request.getHeader("User-Agent");
    }
    if (StringUtils.isEmpty(UA)) {
        // Default UA
        UA = "Nokia6681";
    }
    return UA;
}

From source file:net.ontopia.topicmaps.webed.impl.utils.ReqParamUtils.java

/**
 * INTERNAL: Builds the Parameters object from an HttpServletRequest
 * object./*from   ww w  .  j  ava 2 s .  co  m*/
 * @since 2.0
 */
public static Parameters decodeParameters(HttpServletRequest request, String charenc)
        throws ServletException, IOException {

    String ctype = request.getHeader("content-type");
    log.debug("Content-type: " + ctype);
    Parameters params = new Parameters();

    if (ctype != null && ctype.startsWith("multipart/form-data")) {
        // special file upload request, so use FileUpload to decode
        log.debug("Decoding with FileUpload; charenc=" + charenc);
        try {
            FileUpload upload = new FileUpload(new DefaultFileItemFactory());
            Iterator iterator = upload.parseRequest(request).iterator();
            while (iterator.hasNext()) {
                FileItem item = (FileItem) iterator.next();
                log.debug("Reading: " + item);
                if (item.isFormField()) {
                    if (charenc != null)
                        params.addParameter(item.getFieldName(), item.getString(charenc));
                    else
                        params.addParameter(item.getFieldName(), item.getString());
                } else
                    params.addParameter(item.getFieldName(), new FileParameter(item));
            }
        } catch (FileUploadException e) {
            throw new ServletException(e);
        }

    } else {
        // ordinary web request, so retrieve info and stuff into Parameters object
        log.debug("Normal parameter decode, charenc=" + charenc);
        if (charenc != null)
            request.setCharacterEncoding(charenc);
        Enumeration enumeration = request.getParameterNames();
        while (enumeration.hasMoreElements()) {
            String param = (String) enumeration.nextElement();
            params.addParameter(param, request.getParameterValues(param));
        }
    }

    return params;
}

From source file:com.gson.WeChat.java

/**
 * ??, 5.0 ??/*from  w  ww.  j a  va  2 s.  co  m*/
 * @param request
 * @return
 */
public static boolean isWeiXin(HttpServletRequest request) {
    String userAgent = request.getHeader("User-Agent");
    if (StringUtils.isNotBlank(userAgent)) {
        Pattern p = Pattern.compile("MicroMessenger/(\\d+).+");
        Matcher m = p.matcher(userAgent);
        String version = null;
        if (m.find()) {
            version = m.group(1);
        }
        return (null != version && NumberUtils.toInt(version) >= 5);
    }
    return false;
}

From source file:com.telefonica.iot.perseo.Utils.java

/**
 * Capture correlator and generate//from   w  ww. j  a v  a 2  s  .  com
 *
 * @param req HttpServletRequest incomming request
 *
 */
public static void putCorrelatorAndTrans(HttpServletRequest req) {
    String correlatorId = req.getHeader(Constants.CORRELATOR_HEADER);
    String transId = UUID.randomUUID().toString();
    if (correlatorId == null) {
        correlatorId = transId;
    }
    MDC.put(Constants.TRANSACTION_ID, transId);
    MDC.put(Constants.CORRELATOR_ID, correlatorId);
    String service = req.getHeader(Constants.SERVICE_HEADER);
    if (service == null) {
        service = "?";
    }
    MDC.put(Constants.SERVICE_FIELD, service);

    String subservice = req.getHeader(Constants.SUBSERVICE_HEADER);
    if (subservice == null) {
        subservice = "?";
    }
    MDC.put(Constants.SUBSERVICE_FIELD, subservice);

    {
        String realIP = req.getHeader(Constants.REALIP_HEADER);

        if (realIP == null) {
            realIP = req.getRemoteAddr();
        }
        MDC.put(Constants.REALIP_FIELD, realIP);
    }

}

From source file:com.yiji.openapi.sdk.util.Servlets.java

public static String getHeaderValue(HttpServletRequest request, String name) {
    String value = request.getHeader(name);
    if (StringUtils.isBlank(value)) {
        value = request.getHeader(StringUtils.lowerCase(name));
    }//w  ww. ja v a 2 s  .c o  m
    return value;
}

From source file:fr.paris.lutece.util.http.SecurityUtil.java

/**
 * Get the IP of the user from a request. If the user is behind an apache
 * server, return the ip of the user instead of the ip of the server.
 * @param request The request//from   ww  w  .j a  v  a  2s . co m
 * @return The IP of the user that made the request
 */
public static String getRealIp(HttpServletRequest request) {
    String strIPAddress = request.getHeader(CONSTANT_HTTP_HEADER_X_FORWARDED_FOR);

    if (strIPAddress != null) {
        String strIpForwarded = null;

        while (!strIPAddress.matches(PATTERN_IP_ADDRESS) && strIPAddress.contains(CONSTANT_COMMA)) {
            strIpForwarded = strIPAddress.substring(0, strIPAddress.indexOf(CONSTANT_COMMA));
            strIPAddress = strIPAddress.substring(strIPAddress.indexOf(CONSTANT_COMMA))
                    .replaceFirst(CONSTANT_COMMA, StringUtils.EMPTY).trim();

            if ((strIpForwarded != null) && strIpForwarded.matches(PATTERN_IP_ADDRESS)) {
                strIPAddress = strIpForwarded;
            }
        }

        if (!strIPAddress.matches(PATTERN_IP_ADDRESS)) {
            strIPAddress = request.getRemoteAddr();
        }
    } else {
        strIPAddress = request.getRemoteAddr();
    }

    return strIPAddress;
}

From source file:com.jslsolucoes.tagria.lib.util.TagUtil.java

public static String getScheme(HttpServletRequest request) {
    if (request.getHeader("X-Forwarded-Protocol") != null) {
        return request.getHeader("X-Forwarded-Protocol");
    } else {//  w ww  . j ava  2  s. co m
        return request.getScheme();
    }
}