001    /*
002     * Copyright (c) 2009 The openGion Project.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
013     * either express or implied. See the License for the specific language
014     * governing permissions and limitations under the License.
015     */
016    package org.opengion.hayabusa.servlet;
017    
018    import java.io.FileInputStream;
019    import java.io.IOException;
020    
021    import javax.mail.internet.MimeUtility;
022    import javax.servlet.ServletException;
023    import javax.servlet.ServletOutputStream;
024    import javax.servlet.http.HttpServlet;
025    import javax.servlet.http.HttpServletRequest;
026    import javax.servlet.http.HttpServletResponse;
027    
028    import org.opengion.fukurou.security.HybsCryptography;
029    import org.opengion.fukurou.util.Closer;
030    import org.opengion.fukurou.util.KanaFilter;
031    import org.opengion.fukurou.util.StringUtil;
032    import org.opengion.hayabusa.common.HybsSystem;
033    import org.opengion.hayabusa.common.HybsSystemException;
034    
035    /**
036     * 繧ｵ繝ｼ繝舌?邂｡逅?ヵ繧｡繧､繝ｫ繧偵ム繧ｦ繝ｳ繝ｭ繝ｼ繝峨☆繧句?蜷医↓菴ｿ逕ｨ縺吶ｋ縲√し繝ｼ繝悶Ξ繝?ヨ縺ｧ縺吶?
037     *
038     * 蠑墓焚(URL)縺ｫ謖?ｮ壹?繝輔ぃ繧､繝ｫ繧偵し繝ｼ繝舌?縺九ｉ繧ｯ繝ｩ繧､繧｢繝ｳ繝医↓繝?え繝ｳ繝ｭ繝ｼ繝峨＆縺帙∪縺吶?
039     * file 縺ｫ縺ｯ縲√し繝ｼ繝舌?繝輔ぃ繧､繝ｫ縺ｮ迚ｩ逅?い繝峨Ξ繧ｹ繧呈欠螳壹＠縺ｾ縺吶?逶ｸ蟇ｾ繝代せ繧剃ｽｿ逕ｨ縺吶ｋ蝣ｴ蜷医?縲?
040     * 繧ｳ繝ｳ繝?く繧ｹ繝医Ν繝ｼ繝?騾壼ｸｸ縲ゝomcat縺ｧ縺ｯ縲；:\webapps\dbdef2\ 縺ｪ縺ｩ)縺九ｉ縺ｮ繝代せ縺ｨ蛻､譁ｭ縺励∪縺吶?
041     * name 縺ｫ縺ｯ縲√け繝ｩ繧､繧｢繝ｳ繝医↓騾∽ｿ｡縺吶ｋ繝輔ぃ繧､繝ｫ蜷阪ｒ謖?ｮ壹＠縺ｾ縺吶?繝輔ぃ繧､繝ｫ蜷阪ｒ謖?ｮ壹＠縺ｪ縺??蜷医?縲?
042     * 繧ｵ繝ｼ繝舌?縺ｮ迚ｩ逅?ヵ繧｡繧､繝ｫ縺ｮ繝輔ぃ繧､繝ｫ蜷阪′莉｣繧上ｊ縺ｫ菴ｿ逕ｨ縺輔ｌ縺ｾ縺吶?
043     * 譌･譛ｬ隱槭ヵ繧｡繧､繝ｫ蜷阪?縲√☆縺ｹ縺ｦ UTF-8蛹悶＠縺ｦ蜃ｦ逅?＠縺ｾ縺吶?謖?ｮ壹☆繧九ヵ繧｡繧､繝ｫ縺ｫ譌･譛ｬ隱槭′蜷ｫ縺ｾ繧後ｋ
044     * 蝣ｴ蜷医?縲ゞRL繧ｨ繝ｳ繧ｳ繝ｼ繝峨ｒ陦後▲縺ｦ縺上□縺輔＞縲?
045     * 蝓ｺ譛ｬ逧?↓縺ｯContent-disposition螻樊?縺ｨ縺励※"attachment"縺梧欠螳壹＆繧後∪縺吶?
046     * 菴?＠縲∝ｼ墓焚縺ｫ inline=true 繧呈欠螳壹☆繧九％縺ｨ縺ｧ縲，ontent-disposition螻樊?縺ｫ"inline"縺梧欠螳壹＆繧後∪縺吶?
047     * 縺ｾ縺溘?繧ｷ繧ｹ繝?Β繝ｪ繧ｽ繝ｼ繧ｹ縺ｮUSE_FILEDOWNLOAD_CHECKKEY繧稚rue縺ｫ謖?ｮ壹☆繧九％縺ｨ縺ｧ縲∫ｰ｡譏鍋噪縺ｪ繝√ぉ繝?け繧?
048     * 陦後≧縺薙→縺後〒縺阪∪縺吶?
049     * 蜈ｷ菴鍋噪縺ｫ縺ｯ縲√％繧後ｒ譛牙柑縺ｫ縺吶ｋ縺ｨ縲’ile螻樊?縺ｮ蛟､縺九ｉ險育ｮ励＆繧後ｋMD5繝√ぉ繝?け繧ｵ繝?→縲?key"縺ｨ縺?≧
050     * 繝代Λ繝｡繝ｼ繧ｿ繝ｼ縺ｫ謖?ｮ壹＆繧後◆蛟､縺御ｸ??縺励◆蝣ｴ蜷医?縺ｿ繝?え繝ｳ繝ｭ繝ｼ繝峨′險ｱ蜿ｯ縺輔ｌ縲〔ey縺梧欠螳壹＆繧後※縺?↑縺??
051     * 縺ｾ縺溘?蛟､縺檎焚縺ｪ繧句?蜷医?繝?え繝ｳ繝ｭ繝ｼ繝峨お繝ｩ繝ｼ縺ｨ縺ｪ繧翫∪縺吶?
052     *
053     * 荳?握逧?↑繧ｵ繝ｼ繝悶Ξ繝?ヨ縺ｨ蜷梧ｧ倥↓縲√ョ繝励Ο繧､繝｡繝ｳ繝医?繝?ぅ繧ｹ繧ｯ繝ｪ繝励ち WEB-INF/web.xml 縺ｫ縲?
054     * servlet 隕∫ｴ?→ 縺昴?繝槭ャ繝斐Φ繧ｰ(servlet-mapping)繧貞ｮ夂ｾｩ縺吶ｋ蠢?ｦ√′縺ゅｊ縺ｾ縺吶?
055     *
056     *     &lt;servlet&gt;
057     *         &lt;servlet-name&gt;fileDownload&lt;/servlet-name&gt;
058     *         &lt;servlet-class&gt;org.opengion.hayabusa.servlet.FileDownload&lt;/servlet-class&gt;
059     *     &lt;/servlet&gt;
060     *
061     *     &lt;servlet-mapping&gt;
062     *         &lt;servlet-name&gt;fileDownload&lt;/servlet-name&gt;
063     *         &lt;url-pattern&gt;/jsp/fileDownload&lt;/url-pattern&gt;
064     *     &lt;/servlet-mapping&gt;
065     *
066     * 荳?握縺ｫ縺ｯ縲”ttp://:繝昴?繝?繧ｷ繧ｹ繝?ΒID/jsp/fileDownload?file=繧ｵ繝ｼ繝舌?迚ｩ逅?ヵ繧｡繧､繝ｫ&amp;name=繝輔ぃ繧､繝ｫ蜷?
067     * 蠖｢蠑上?URL 縺ｧ繧｢繧ｯ繧ｻ繧ｹ縺励∪縺吶?
068     *
069     * @og.rev 3.8.1.1 (2005/11/21) 譁ｰ隕剰ｿｽ蜉?
070     * @og.group 縺昴?莉匁ｩ溯?
071     *
072     * @version  0.9.0  2000/10/17
073     * @author   Kazuhiko Hasegawa
074     * @since    JDK1.1,
075     */
076    public class FileDownload extends HttpServlet {
077            private static final long serialVersionUID = 539020110901L ;
078    
079            // 諡｡蠑ｵ蟄芯ontentType蟇ｾ蠢懊ユ繝ｼ繝悶Ν
080            private static final String CONTENT_TYPE_TABLE[][] = {
081                    {"jpg", "image/pjpeg"   },
082                    {"gif", "image/gif"             },
083                    {"txt", "text/plain"    },
084    //              {"xls", "application/vnd.ms-excel"}
085                    // OpenDocument霑ｽ蜉?
086                    {"xls", "application/vnd.ms-excel"},
087                    {"odp", "application/vnd.oasis.opendocument.presentation"}, // 4.3.5.5 (2008/03/08)
088                    {"ods", "application/vnd.oasis.opendocument.spreadsheet"}, // 4.3.5.5 (2008/03/08)
089                    {"odt", "application/vnd.oasis.opendocument.text"} // 4.3.5.5 (2008/03/08)
090            };
091            private static final int EXTENTION       = 0;
092            private static final int CONTENT_TYPE= 1;
093    
094            /**
095             * GET 繝｡繧ｽ繝?ラ縺悟他縺ｰ繧後◆縺ｨ縺阪↓螳溯｡後＠縺ｾ縺吶?
096             *
097             * 蜃ｦ逅??縲‥oPost 縺ｸ謖ｯ繧翫↑縺翫＠縺ｦ縺?∪縺吶?
098             *
099             * @param       request HttpServletRequest繧ｪ繝悶ず繧ｧ繧ｯ繝?
100             * @param       response        HttpServletResponse繧ｪ繝悶ず繧ｧ繧ｯ繝?
101             *
102             * @og.rev 3.8.1.2 (2005/12/19) 蜊願ｧ偵き繝?蜈ｨ隗偵き繝雁､画鋤讖溯?縺ｮ霑ｽ蜉?
103             *
104             * @throws ServletException 繧ｵ繝ｼ繝悶Ξ繝?ヨ髢｢菫ゅ?繧ｨ繝ｩ繝ｼ縺檎匱逕溘＠縺溷?蜷医?throw 縺輔ｌ縺ｾ縺吶?
105             * @throws IOException 蜈･蜃ｺ蜉帙お繝ｩ繝ｼ縺檎匱逕溘＠縺溘→縺?
106             */
107            @Override
108            public void doGet( final HttpServletRequest request, final HttpServletResponse response )
109                                                            throws ServletException, IOException {
110                    doPost( request,response );
111            }
112    
113            /**
114             * POST 繝｡繧ｽ繝?ラ縺悟他縺ｰ繧後◆縺ｨ縺阪↓螳溯｡後＠縺ｾ縺吶?
115             *
116             * file 蠑墓焚縺ｮ 繧ｵ繝ｼ繝舌?迚ｩ逅?ヵ繧｡繧､繝ｫ繧偵?繧ｯ繝ｩ繧､繧｢繝ｳ繝医↓繧ｹ繝医Μ繝ｼ繝?喧縺励※霑斐＠縺ｾ縺吶?
117             * name 蠑墓焚縺後≠繧後?縲√◎縺ｮ蜷榊燕縺ｮ繝輔ぃ繧､繝ｫ蜷阪〒繧ｯ繝ｩ繧､繧｢繝ｳ繝医′繝輔ぃ繧､繝ｫ繧ｻ繝ｼ繝悶〒縺阪ｋ繧医≧縺ｫ
118             * 縺励∪縺吶?name 蠑墓焚縺後↑縺代ｌ縺ｰ縲√◎縺ｮ縺ｾ縺ｾ迚ｩ逅?ヵ繧｡繧､繝ｫ蜷阪′菴ｿ逕ｨ縺輔ｌ縺ｾ縺吶?
119             * 繧ｵ繝ｼ繝舌?迚ｩ逅?ヵ繧｡繧､繝ｫ蜷阪′縲∫嶌蟇ｾ繝代せ縺ｮ蝣ｴ蜷医?繧ｳ繝ｳ繝?く繧ｹ繝医Ν繝ｼ繝医↓蟇ｾ縺吶ｋ逶ｸ蟇ｾ繝代せ縺ｫ縺ｪ繧翫∪縺吶?
120             * (萓具ｼ哦:\webapps\dbdef2\ 縺ｪ縺ｩ)
121             *
122             * @og.rev 5.3.2.0 (2011/02/01) 譌･譛ｬ隱槭ヵ繧｡繧､繝ｫ蜷阪′豁｣縺励￥蜃ｦ逅?〒縺阪↑縺?ヰ繧ｰ繧剃ｿｮ豁｣
123             * @og.rev 5.3.4.0 (2011/04/01) IE縺ｧ繝輔ぃ繧､繝ｫ縺梧ｭ｣縺励￥繝?え繝ｳ繝ｭ繝ｼ繝峨〒縺阪↑縺?ヰ繧ｰ繧剃ｿｮ豁｣
124             * @og.rev 5.3.5.0 (2011/05/01) 繝輔ぃ繧､繝ｫ繝?え繝ｳ繝ｭ繝ｼ繝峨メ繧ｧ繝?け繧ｭ繝ｼ蟇ｾ蠢?
125             * @og.rev 5.3.6.0 (2011/06/01) 繝輔ぃ繧､繝ｫ繝?え繝ｳ繝ｭ繝ｼ繝峨?attachment縺ｫ螟画峩(繝?え繝ｳ繝ｭ繝ｼ繝峨ム繧､繧｢繝ｭ繧ｰ繧貞?縺?
126             * @og.rev 5.3.8.0 (2011/08/01) 繝輔ぃ繧､繝ｫ蜷肴欠螳壹〒IE縺ｮ蝣ｴ蜷医?URL繧ｨ繝ｳ繧ｳ繝ｼ繝峨☆繧九→騾比ｸｭ縺ｧ蛻?ｌ繧九◆繧?IE7縺ｮ繝舌げ)縲ヾhift_JIS(WIndows-31J)縺ｧ逶ｴ謗･謖?ｮ壹☆繧九?
127             * @og.rev 5.3.9.0 (2011/09/01) 蠑墓焚縺ｫinline=true繧呈欠螳壹☆繧九％縺ｨ縺ｧ縲√う繝ｳ繝ｩ繧､繝ｳ陦ｨ遉ｺ縺悟?譚･繧九ｈ縺?↓蟇ｾ蠢?
128             * @og.rev 5.7.1.2 (2013/12/20) 譌･譛ｬ隱槭ヵ繧｡繧､繝ｫ縺ｮIE11蟇ｾ蠢懶ｼ?A螟画峩??msg 竍?errMsg 螟画峩
129             *
130             * @param       request HttpServletRequest繧ｪ繝悶ず繧ｧ繧ｯ繝?
131             * @param       response        HttpServletResponse繧ｪ繝悶ず繧ｧ繧ｯ繝?
132             *
133             * @throws ServletException 繧ｵ繝ｼ繝悶Ξ繝?ヨ髢｢菫ゅ?繧ｨ繝ｩ繝ｼ縺檎匱逕溘＠縺溷?蜷医?throw 縺輔ｌ縺ｾ縺吶?
134             * @throws IOException 蜈･蜃ｺ蜉帙お繝ｩ繝ｼ縺檎匱逕溘＠縺溘→縺?
135             */
136            @Override
137            public void doPost( final HttpServletRequest request, final HttpServletResponse response )
138                                                            throws ServletException, IOException {
139    
140                    // 3.8.1.2 (2005/12/19) 蜊願ｧ偵き繝?蜈ｨ隗偵き繝雁､画鋤讖溯?縺ｮ霑ｽ蜉?
141                    boolean hanzenFlag = HybsSystem.sysBool( "USE_FILEDOWNLOAD_HAN_ZEN" );
142    
143                    String reqFilename = request.getParameter( "file" );
144                    String newFilename = request.getParameter( "name" );
145    
146                    // 5.3.9.0 (2011/09/01) 蠑墓焚縺ｫinline=true繧呈欠螳壹☆繧九％縺ｨ縺ｧ縲√う繝ｳ繝ｩ繧､繝ｳ陦ｨ遉ｺ縺悟?譚･繧九ｈ縺?↓蟇ｾ蠢?
147                    boolean inline = StringUtil.nval( request.getParameter( "inline" ), false );
148                    String dipositionType = inline ? "inline" : "attachment";
149    
150                    // 繧ｯ繝ｩ繧､繧｢繝ｳ繝亥?縺ｮ譁?ｭ励お繝ｳ繧ｳ繝ｼ繝?ぅ繝ｳ繧ｰ繧旦TF-8縺ｫ螟画鋤
151                    reqFilename = new String( reqFilename.getBytes("ISO-8859-1"), "UTF-8" );
152    
153                    // 5.3.5.0 (2011/05/01) 繝輔ぃ繧､繝ｫ繝?え繝ｳ繝ｭ繝ｼ繝峨メ繧ｧ繝?け繧ｭ繝ｼ蟇ｾ蠢?
154                    boolean useCheck = HybsSystem.sysBool( "USE_FILEDOWNLOAD_CHECKKEY" );
155                    if( useCheck ) {
156                            String checkKey = request.getParameter( "key" );
157                            if( checkKey == null || !checkKey.equals( HybsCryptography.getMD5( reqFilename ) ) ) {
158    //                              String msg = "繧｢繧ｯ繧ｻ繧ｹ縺梧拠蜷ｦ縺輔ｌ縺ｾ縺励◆縲?URL繝√ぉ繝?け)";
159    //                              throw new HybsSystemException( msg );
160                                    String errMsg = "繧｢繧ｯ繧ｻ繧ｹ縺梧拠蜷ｦ縺輔ｌ縺ｾ縺励◆縲?URL繝√ぉ繝?け)";
161                                    throw new HybsSystemException( errMsg );        // 5.7.1.2 (2013/12/20) msg 竍?errMsg 螟画峩
162                            }
163                    }
164    
165                    // 逶ｸ蟇ｾ繝代せ繧堤ｵｶ蟇ｾ繝代せ縺ｫ螟画鋤縲ゅヵ繧｡繧､繝ｫ繧ｻ繝代Ξ繝ｼ繧ｿ繧よｭ｣隕丞喧縺輔ｌ縺ｦ縺?∪縺吶?
166                    reqFilename = HybsSystem.url2dir( reqFilename );
167    
168                    // 諡｡蠑ｵ蟄舌°繧営ontentType繧堤佐蠕?
169                    String contentType = getContentType( reqFilename );
170                    // contentType繧貞?蜉?
171                    response.setContentType( contentType );
172    
173                    // 陦ｨ遉ｺ繝輔ぃ繧､繝ｫ蜷阪?謖?ｮ?
174                    if( newFilename == null || newFilename.length() == 0 ) {
175                            newFilename = getFileName( reqFilename );
176                    }
177                    else {
178                            newFilename = new String( newFilename.getBytes("ISO-8859-1"), "UTF-8" );
179                    }
180    
181                    // 3.8.1.2 (2005/12/19) 蜊願ｧ偵き繝翫ｒ蜈ｨ隗偵き繝翫↓鄂ｮ縺肴鋤縺医∪縺吶?繝輔ぃ繧､繝ｫ繝?う繧｢繝ｭ繧ｰ縺ｮ譁?ｭ怜喧縺台ｻｮ蟇ｾ蠢?
182                    if( hanzenFlag ) {
183                            newFilename = KanaFilter.han2zen( newFilename );
184                    }
185    
186                    // 5.3.2.0 (2011/02/01) 譌･譛ｬ隱槭ヵ繧｡繧､繝ｫ蜷阪′豁｣縺励￥蜃ｦ逅?〒縺阪↑縺?ヰ繧ｰ繧剃ｿｮ豁｣
187    ////            newFilename = StringUtil.urlEncode( newFilename );
188    //              if( request.getHeader( "User-Agent" ).indexOf( "MSIE" ) == -1 ) {
189    //                      newFilename = MimeUtility.encodeWord( newFilename, "UTF-8", "B" );
190    //              }
191    //              else {
192    //                      // 5.3.8.0 (2011/08/01) IE縺ｮ蝣ｴ蜷医?URL繧ｨ繝ｳ繧ｳ繝ｼ繝峨☆繧九→騾比ｸｭ縺ｧ蛻?ｌ繧九◆繧?IE7縺ｮ繝舌げ)縲ヾhift_JIS(WIndows-31J)縺ｧ逶ｴ謗･謖?ｮ壹☆繧九?
193    ////                    newFilename = StringUtil.urlEncode( newFilename );
194    //                      newFilename = new String( newFilename.getBytes("Windows-31J"), "ISO-8859-1" );
195    //              }
196                    
197                    // 5.7.1.2 (2013/12/20) 譚｡莉ｶ繧貞渚霆｢縺輔○縺滉ｸ翫〒IE11蟇ｾ蠢懊ｒ陦後≧
198                    if( request.getHeader( "User-Agent" ).indexOf( "MSIE" ) >= 0 || request.getHeader( "User-Agent" ).indexOf( "Trident" ) >= 0 ) {
199                            newFilename = new String( newFilename.getBytes("Windows-31J"), "ISO-8859-1" );
200                    }
201                    else {
202                            newFilename = MimeUtility.encodeWord( newFilename, "UTF-8", "B" );
203                    }
204    
205                    // 繝輔ぃ繧､繝ｫ蜷阪?騾∽ｿ｡( attachment驛ｨ蛻?ｒinline縺ｫ螟画峩縺吶ｌ縺ｰ繧､繝ｳ繝ｩ繧､繝ｳ陦ｨ遉ｺ )
206                    // 5.3.9.0 (2011/09/01) 蠑墓焚縺ｫinline=true繧呈欠螳壹☆繧九％縺ｨ縺ｧ縲√う繝ｳ繝ｩ繧､繝ｳ陦ｨ遉ｺ縺悟?譚･繧九ｈ縺?↓蟇ｾ蠢?
207    //              response.setHeader( "Content-disposition", "inline; filename=\"" + newFilename + "\"" );
208    //              response.setHeader( "Content-disposition", "attachment; filename=\"" + newFilename + "\"" );
209                    response.setHeader( "Content-disposition", dipositionType + "; filename=\"" + newFilename + "\"" );
210    
211                    // 5.3.4.0 (2011/04/01) IE縺ｧ繝輔ぃ繧､繝ｫ縺梧ｭ｣縺励￥繝?え繝ｳ繝ｭ繝ｼ繝峨〒縺阪↑縺?ヰ繧ｰ繧剃ｿｮ豁｣
212                    response.setHeader( "Cache-Control", "public" );
213    
214                    // 繝輔ぃ繧､繝ｫ蜀?ｮｹ縺ｮ蜃ｺ蜉?
215                    FileInputStream     fin = null;
216                    ServletOutputStream out = null;
217                    try {
218                            fin = new FileInputStream( reqFilename );
219                            out = response.getOutputStream();
220    
221                            // 繝輔ぃ繧､繝ｫ隱ｭ縺ｿ霎ｼ縺ｿ逕ｨ繝舌ャ繝輔ぃ
222                            byte buffer[]  = new byte[4096];
223                            int size;
224                            while((size = fin.read(buffer))!=-1) {
225                                    out.write(buffer,0, size);
226                                    out.flush();
227                            }
228                    }
229                    finally {
230                            Closer.ioClose( fin );          // 4.0.0 (2006/01/31) close 蜃ｦ逅?凾縺ｮ IOException 繧堤┌隕?
231                            Closer.ioClose( out );          // 4.0.0 (2006/01/31) close 蜃ｦ逅?凾縺ｮ IOException 繧堤┌隕?
232                    }
233            }
234    
235            /**
236             * 繧｢繝峨Ξ繧ｹ蜷阪°繧画僑蠑ｵ蟄舌ｒ蜿悶ｊ蜃ｺ縺励∪縺吶?
237             *
238             * 繧｢繝峨Ξ繧ｹ蜷阪?蠕後ｍ縺九ｉ縲?." 莉･髯阪ｒ諡｡蠑ｵ蟄舌→縺励※蛻?ｊ蜿悶ｊ縺ｾ縺吶?
239             * 諡｡蠑ｵ蟄舌′蟄伜惠縺励↑縺??蜷?謖?ｮ壹?繝輔ぃ繧､繝ｫ蜷阪↓ "." 縺悟性縺ｾ繧後↑縺??蜷?縺ｯ
240             * 繧ｼ繝ｭ譁?ｭ怜?("")繧定ｿ斐＠縺ｾ縺吶?
241             *
242             * @param       fileAddress     繧｢繝峨Ξ繧ｹ蜷?
243             *
244             * @return      諡｡蠑ｵ蟄?
245             */
246            private String getExtention( final String fileAddress ) {
247                    int idx = fileAddress.lastIndexOf('.');
248                    if( idx!=-1 ) { return fileAddress.substring( idx+1 ); }
249                    return "";
250            }
251    
252            /**
253             * 繧｢繝峨Ξ繧ｹ蜷阪°繧峨ヵ繧｡繧､繝ｫ蜷阪ｒ蜿悶ｊ蜃ｺ縺励∪縺吶?
254             *
255             * 繧｢繝峨Ξ繧ｹ蜷阪?蠕後ｍ縺九ｉ縲√ヵ繧｡繧､繝ｫ繧ｻ繝代Ξ繝ｼ繧ｿ莉･髯阪ｒ繝輔ぃ繧､繝ｫ蜷阪→縺励※蛻?ｊ蜿悶ｊ縺ｾ縺吶?
256             * 繝輔ぃ繧､繝ｫ繧ｻ繝代Ξ繝ｼ繧ｿ縺悟ｭ伜惠縺励↑縺??蜷医?繧｢繝峨Ξ繧ｹ蜷阪ｒ縺昴?縺ｾ縺ｾ霑斐＠縺ｾ縺吶?
257             * 縺薙％縺ｧ縺ｯ縲＾S豈弱↓逡ｰ縺ｪ繧九ヵ繧｡繧､繝ｫ繧ｻ繝代Ξ繝ｼ繧ｿ繧堤ｵｱ荳?ｾ後↓蜃ｦ逅?＠縺ｦ縺上□縺輔＞縲?
258             *
259             * @param       fileAddress     繧｢繝峨Ξ繧ｹ蜷?
260             *
261             * @return      繝輔ぃ繧､繝ｫ蜷?
262             */
263            private String getFileName( final String fileAddress ) {
264                    int idx = fileAddress.lastIndexOf( HybsSystem.FS );
265                    if( idx!=-1 ) { return fileAddress.substring( idx+1 ); }
266                    return fileAddress;
267            }
268    
269            /**
270             * 繧｢繝峨Ξ繧ｹ蜷阪°繧牙ｯｾ蠢懊☆繧九さ繝ｳ繝?Φ繝?ち繧､繝励ｒ蜿悶ｊ蜃ｺ縺励∪縺吶?
271             *
272             * 繧｢繝峨Ξ繧ｹ蜷阪°繧峨?繝輔ぃ繧､繝ｫ諡｡蠑ｵ蟄舌ｒ蜿悶ｊ蜃ｺ縺励?蟇ｾ蠢懊☆繧九さ繝ｳ繝?Φ繝?ち繧､繝励ｒ霑斐＠縺ｾ縺吶?
273             * 繧ｳ繝ｳ繝?Φ繝?ち繧､繝励?縲，ONTENT_TYPE_TABLE 驟榊?縺ｫ螳夂ｾｩ縺励※縺?ｋ荳ｭ縺九ｉ讀懃ｴ｢縺励※霑斐＠縺ｾ縺吶?
274             * 蟄伜惠縺励↑縺??蜷医?縲?application/octet-stream" 繧定ｿ斐＠縺ｾ縺吶?
275             *
276             * @param       fileAddress     繧｢繝峨Ξ繧ｹ蜷?
277             *
278             * @return      繧ｳ繝ｳ繝?Φ繝?ち繧､繝?
279             */
280            private String getContentType( final String fileAddress ) {
281                    String extention = getExtention( fileAddress );
282                    for( int j=0; j<CONTENT_TYPE_TABLE.length; j++ ) {
283                            if( CONTENT_TYPE_TABLE[j][EXTENTION].equalsIgnoreCase( extention ) ) {
284                                    return CONTENT_TYPE_TABLE[j][CONTENT_TYPE];
285                            }
286                    }
287                    return "application/octet-stream";
288            }
289    }