/************************************************************************
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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************************************************************************/
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package common.util;
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import com.moodysalem.phantomjs.wrapper.CommandLineArgument;
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import com.moodysalem.phantomjs.wrapper.PhantomJS;
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import com.moodysalem.phantomjs.wrapper.beans.PhantomJSExecutionResponse;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.io.FileUtils;
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import org.apache.commons.lang3.StringUtils;
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import javax.servlet.http.HttpServletRequest;
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import java.io.File;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Set;
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/**
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* <p>
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* WEB工具
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*
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* @author CSJ
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*/
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public final class WebUtil {
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private static final String PAGESTART = "start";
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private static final String PAGELIMIT = "limit";
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private WebUtil() {
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}
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/**
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* <p>
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* 获取请求参数hashMap
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*
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* @param request
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* @return map
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*/
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public static final Map<String, Object> getParamsMapFromRequest(HttpServletRequest request) {
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Map<String, Object> paramMap = new HashMap<String, Object>();
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Map<String, String[]> reqParamMap = request.getParameterMap();
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Set<Map.Entry<String, String[]>> entitySet = reqParamMap.entrySet();
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for (Map.Entry<String, String[]> entry : entitySet) {
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String value = entry.getValue()[0];
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if (!PAGESTART.equals(entry.getKey()) || !PAGELIMIT.equals(entry.getKey())) {
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paramMap.put(entry.getKey(), value);
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}
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}
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// 处理分页
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String start = request.getParameter(PAGESTART);
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String limit = request.getParameter(PAGELIMIT);
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if (StringUtils.isNotEmpty(start) && StringUtils.isNotEmpty(limit)) {
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paramMap.put(PAGESTART, start);
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paramMap.put(PAGELIMIT, Integer.valueOf(start) + Integer.valueOf(limit));
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}
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return paramMap;
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}
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/**
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* <p>
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* 获取客户端IP
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*
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* @param request
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* @return
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*/
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public static final String getIpAddrByRequest(HttpServletRequest request) {
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String ip = request.getHeader("x-forwarded-for");
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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}
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return ip;
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}
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/**
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* <p>
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* 判断是否为Ajax请求
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*
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* @param request
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* @return
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*/
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public static final boolean isAjax(HttpServletRequest request) {
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return "XMLHttpRequest".equals(request.getHeader("X-Requested-With"));
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}
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public enum BrowserType {
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IE10, IE9, IE8, IE7, IE6, Firefox, Safari, Chrome, Opera, Camino, Gecko, Other
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}
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/** 判断是否是IE */
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public static boolean isIE(HttpServletRequest request) {
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return request.getHeader("USER-AGENT").toLowerCase().indexOf("msie") > 0 ? true : false;
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}
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/**
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* 获取浏览器类型
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*
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* @param request
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* @return
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*/
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public static BrowserType getBrowserType(HttpServletRequest request) {
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BrowserType browserType = BrowserType.Other;
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if (getBrowserType(request, "msie 10.0")) {
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browserType = BrowserType.IE9;
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}
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if (getBrowserType(request, "msie 9.0")) {
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browserType = BrowserType.IE9;
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}
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if (getBrowserType(request, "msie 8.0")) {
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browserType = BrowserType.IE8;
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}
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if (getBrowserType(request, "msie 7.0")) {
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browserType = BrowserType.IE7;
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}
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if (getBrowserType(request, "msie 6.0")) {
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browserType = BrowserType.IE6;
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}
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if (getBrowserType(request, "firefox")) {
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browserType = BrowserType.Firefox;
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}
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if (getBrowserType(request, "safari")) {
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browserType = BrowserType.Safari;
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}
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if (getBrowserType(request, "chrome")) {
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browserType = BrowserType.Chrome;
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}
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if (getBrowserType(request, "opera")) {
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browserType = BrowserType.Opera;
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}
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if (getBrowserType(request, "camino")) {
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browserType = BrowserType.Camino;
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}
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return browserType;
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}
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private static boolean getBrowserType(HttpServletRequest request, String brosertype) {
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return request.getHeader("USER-AGENT").toLowerCase().indexOf(brosertype) > 0 ? true : false;
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}
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/**
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* 生成URL页面缩略图
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*
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* @param url
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* @param filename
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* @param jsWait
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* @return
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* @throws IOException
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*/
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public static final String snapshotHtmlImageBase64Format(String url, String filename, long jsWait) throws IOException {
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String tmpdir = System.getProperty("java.io.tmpdir", "/tmp");
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String base64 = null;
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PhantomJSExecutionResponse resp = PhantomJS.exec(WebUtil.class.getClassLoader().getResourceAsStream("ScreenCapture.js"),
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new CommandLineArgument(url),
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new CommandLineArgument(filename),
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new CommandLineArgument(String.valueOf(jsWait)),
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new CommandLineArgument(tmpdir));
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int renderExitCode = resp.getExitCode();
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if (renderExitCode == 0) {
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File tmp = new File(tmpdir + "/" + filename + ".JPEG");
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byte[] data = FileUtils.readFileToByteArray(tmp);
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base64 = Base64.encodeBase64String(data);
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FileUtils.forceDeleteOnExit(tmp);
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}
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return base64;
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}
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public static final String snapshotHtmlImageBase64Format(String url, String filename) throws IOException {
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return snapshotHtmlImageBase64Format(url, filename, 2000l);
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}
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}
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