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/**
 * Sahi - Web Automation and Test Tool
 *
 * Copyright  2006  V Narayan Raman
 *
 * Licensed 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.
 */
package net.sf.sahi.response;


import java.io.UnsupportedEncodingException;


import net.sf.sahi.ProcessCommon;
import net.sf.sahi.config.Configuration;
import net.sf.sahi.request.HttpRequest;
import net.sf.sahi.stream.filter.HTMLModifierFilter;
import net.sf.sahi.stream.filter.JSModifierFilter;
import net.sf.sahi.util.DbUtils;


/**
 * User: nraman Date: May 14, 2005 Time: 1:43:05 AM
 */
public class HttpModifiedResponse2 extends HttpResponse {


    boolean isSSL = false;
    private String fileExtension;
private String charset;
private String dataString; 


    public HttpModifiedResponse2(final HttpResponse response, final boolean isSSL, String fileExtension, int responseCode) {
        this.fileExtension = fileExtension;
        copyFrom(response);
        /*
        removing cache headers again for login problem.
        test on IE sahi.co.in login/logout
        */
        this.isSSL = isSSL;
        if (responseCode < 300 || responseCode >= 400) { // Response code other than 3xx
            boolean html = isHTML();
            boolean js = isJs();
            boolean injectHeader = false;
            if (html || js){
            charset(); // set it
            final byte[] data = data();
            if (data == null) {
            dataString = "";
            } else {
try {
dataString = new String(data, charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
dataString = new String(data);
}
            }
           if (html) {
HTMLModifierFilter htmlModifierFilter = new HTMLModifierFilter(charset, isXHTML(), isSSL);
htmlModifierFilter.modifyHeaders(response);
String tempStr = dataString;
if (dataString.length() > 30) {
tempStr = dataString.substring(0,30);
}

tempStr = tempStr.replaceAll("\\s", "");
if (tempStr.startsWith(" injectHeader = true;
}
dataString = htmlModifierFilter.modify(dataString,injectHeader);
           }
JSModifierFilter jsModifierFilter = new JSModifierFilter(charset);
dataString = jsModifierFilter.modify(dataString);

if(ProcessCommon.getSpecialInjectMode()){
String findStr1 = "event.clientX>document.body.clientWidth&&event.clientY<0||event.altKey";
String findStr2 = "(evt.clientY-top.document.documentElement.scrollTop)<0";
if (dataString.contains(findStr1)){
String orgScript = "event.clientY<0";
dataString = dataString.replaceAll(orgScript, "false");
}
else if(dataString.contains(findStr2)){
String orgScript = "\\(evt\\.clientY\\-top\\.document\\.documentElement\\.scrollTop\\)<0";
dataString = dataString.replaceAll(orgScript, "false");
}
}

try {
setData(dataString.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (html) {
new NoCacheFilter().modifyHeaders(response);
}
       }
        }
    }
    
    public HttpModifiedResponse2(final HttpResponse response,HttpRequest requestFromBrowser, int responseCode) {
        this.fileExtension = requestFromBrowser.fileExtension();
        copyFrom(response);
        this.isSSL = requestFromBrowser.isSSL();
        
        /*
        removing cache headers again for login problem.
        test on IE sahi.co.in login/logout
        */
        if (responseCode < 300 || responseCode >= 400) { // Response code other than 3xx
            boolean html = isHTML();
            boolean js = isJs();
            boolean injectHeader = false;
            if (html || js){
            charset(); // set it
            final byte[] data = data();
            if (data == null) {
            dataString = "";
            } else {
try {
dataString = new String(data, charset);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
dataString = new String(data);
}
            }
           if (html) {
HTMLModifierFilter htmlModifierFilter = new HTMLModifierFilter(charset, isXHTML(), isSSL);
htmlModifierFilter.modifyHeaders(response);
String tempStr = dataString;
if (dataString.length() > 30) {
tempStr = dataString.substring(0,30);
}

tempStr = tempStr.replaceAll("\\s", "");
if (tempStr.startsWith(" injectHeader = true;
}
dataString = htmlModifierFilter.modify(dataString,injectHeader);
if(Configuration.showFootPrint()){
String url = requestFromBrowser.url();
// url = "http://timesheetv2.paic.com.cn/timesheet/menu.screen";
int insertAfterIx = dataString.indexOf("");
if(insertAfterIx != -1){
String content = DbUtils.getInjectContent(url);
System.out.println(content);
if(!"".equals(content)){
dataString = htmlModifierFilter.inject(dataString, insertAfterIx, content);
}

}

}
           }
JSModifierFilter jsModifierFilter = new JSModifierFilter(charset);
dataString = jsModifierFilter.modify(dataString);

if(ProcessCommon.getSpecialInjectMode()){
String findStr1 = "event.clientX>document.body.clientWidth&&event.clientY<0||event.altKey";
String findStr2 = "(evt.clientY-top.document.documentElement.scrollTop)<0";
if (dataString.contains(findStr1)){
String orgScript = "event.clientY<0";
dataString = dataString.replaceAll(orgScript, "false");
}
else if(dataString.contains(findStr2)){
String orgScript = "\\(evt\\.clientY\\-top\\.document\\.documentElement\\.scrollTop\\)<0";
dataString = dataString.replaceAll(orgScript, "false");
}
}

try {
setData(dataString.getBytes(charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (html) {
new NoCacheFilter().modifyHeaders(response);
}
       }
        }
    }


    public HttpModifiedResponse2(HttpResponse response, boolean isSSL, String fileExtension) {
    this (response, isSSL, fileExtension, 200);
}


private boolean isJs() {
        String contentType = contentTypeHeader();
        if (contentType != null && contentType.toLowerCase().indexOf("javascript") != -1) return true;
        String fileExtensionLC = fileExtension.toLowerCase();
        if ("js".equals(fileExtensionLC) || 
        "js.dsp".equals(fileExtensionLC) ||
        fileExtensionLC.endsWith(".js") || 
        fileExtensionLC.endsWith("js.dsp")) return true;
        return false;
    }


    private boolean isXHTML() {
    if (Configuration.forceTreatAsXHTML()) return true;
        String s = getSampleContent();
        return s.indexOf("     }


    private boolean isHTML() {
        if (isJs()) {
            return false;
        }
        String contentType = contentTypeHeader();
        if (contentType != null && (contentType.toLowerCase().indexOf("text/html") != -1 || contentType.toLowerCase().indexOf("application/xhtml+xml") != -1)) {
            return true;
        }
        if (contentType == null || contentType.toLowerCase().indexOf("text/plain") != -1 || contentType.toLowerCase().indexOf("text/xml") != -1) {
            return hasHtmlContent();
        }
        return false;
    }


    private boolean hasHtmlContent() {
        String s = getSampleContent();
        return s.indexOf("     }


    public String charset() {
    if (charset == null){
       charset = "iso-8859-1";
       String lookIn = contentTypeHeader();
       if (lookIn == null) lookIn = getSampleContent("iso-8859-1");
       String charsetEqTo = "charset=";
       int ix = lookIn.indexOf(charsetEqTo);
       if (ix != -1) {
           int endIx = lookIn.indexOf('"', ix);
           if (endIx == -1)
               endIx = lookIn.length();
           charset = lookIn.substring(ix + charsetEqTo.length(), endIx).trim();
       }
       if (charset.endsWith(";")) charset = charset.substring(0, charset.length()-1);
       try {
           new String(new byte[]{}, charset);
       } catch (UnsupportedEncodingException e) {
//            e.printStackTrace();
           System.out.println("Defaulting to charset iso-8859-1");
           charset = "iso-8859-1";
       }
    }
        return charset;
    }


    String getSampleContent() {
    return getSampleContent(charset());
    }


    String getSampleContent(String charset) {
        String sampleContent = null;
        try {
        int limit = Configuration.sampleLength();
        if (contentLength() < limit) limit = contentLength();
final byte[] data = data();
sampleContent = data == null ? "" : new String(data, 0, limit, charset).toLowerCase();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
        return sampleContent;
    }
}