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79 lines
2.2 KiB
79 lines
2.2 KiB
/*
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This file is part of Airsonic.
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Airsonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Airsonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Airsonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2016 (C) Airsonic Authors
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Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
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*/
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package org.airsonic.player.taglib;
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import org.apache.commons.lang.StringEscapeUtils;
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import javax.servlet.jsp.JspException;
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import javax.servlet.jsp.JspTagException;
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import javax.servlet.jsp.tagext.BodyTagSupport;
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import java.io.IOException;
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/**
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* Escapes the characters in a <code>String</code> using JavaScript String rules.
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* <p/>
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* Escapes any values it finds into their JavaScript String form.
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* Deals correctly with quotes and control-chars (tab, backslash, cr, ff, etc.)
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* <p/>
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* So a tab becomes the characters <code>'\\'</code> and
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* <code>'t'</code>.
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* <p/>
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* The only difference between Java strings and JavaScript strings
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* is that in JavaScript, a single quote must be escaped.
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* <p/>
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* Example:
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* <pre>
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* input string: He didn't say, "Stop!"
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* output string: He didn\'t say, \"Stop!\"
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* </pre>
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*
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* @author Sindre Mehus
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*/
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public class EscapeJavaScriptTag extends BodyTagSupport {
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private String string;
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public int doStartTag() {
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return EVAL_BODY_BUFFERED;
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}
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public int doEndTag() throws JspException {
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try {
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pageContext.getOut().print(StringEscapeUtils.escapeJavaScript(string));
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} catch (IOException x) {
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throw new JspTagException(x);
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}
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return EVAL_PAGE;
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}
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public void release() {
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string = null;
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super.release();
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}
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public String getString() {
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return string;
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}
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public void setString(String string) {
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this.string = string;
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}
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} |