[6785] | 1 | /** |
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| 2 | * MailArchiver is an application that provides services for storing and managing e-mail messages through a Web Services SOAP interface. |
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| 3 | * Copyright (C) 2012 Marcio Andre Scholl Levien and Fernando Alberto Reuter Wendt and Jose Ronaldo Nogueira Fonseca Junior |
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| 4 | * |
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| 5 | * This program is free software: you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU Affero General Public License as |
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| 7 | * published by the Free Software Foundation, either version 3 of the |
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| 8 | * License, or (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU Affero General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU Affero General Public License |
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| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | */ |
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| 18 | |
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| 19 | /******************************************************************************\ |
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| 20 | * |
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| 21 | * This product was developed by |
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| 22 | * |
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| 23 | * SERVIÃO FEDERAL DE PROCESSAMENTO DE DADOS (SERPRO), |
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| 24 | * |
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| 25 | * a government company established under Brazilian law (5.615/70), |
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| 26 | * at Department of Development of Porto Alegre. |
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| 27 | * |
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| 28 | \******************************************************************************/ |
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| 29 | |
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| 30 | package serpro.mailarchiver.domain.metaarchive; |
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| 31 | |
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| 32 | import java.io.BufferedReader; |
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| 33 | import java.io.IOException; |
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| 34 | import java.io.InputStream; |
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| 35 | import java.io.InputStreamReader; |
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| 36 | import java.nio.charset.Charset; |
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| 37 | import java.util.regex.Matcher; |
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| 38 | import java.util.regex.Pattern; |
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| 39 | |
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| 40 | import javax.jdo.JDOHelper; |
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| 41 | import javax.jdo.annotations.NotPersistent; |
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| 42 | import javax.jdo.annotations.PersistenceCapable; |
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| 43 | |
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| 44 | import net.htmlparser.jericho.Element; |
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| 45 | import net.htmlparser.jericho.HTMLElementName; |
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| 46 | import net.htmlparser.jericho.Source; |
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| 47 | import net.htmlparser.jericho.Tag; |
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| 48 | |
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| 49 | import org.apache.commons.lang3.StringEscapeUtils; |
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| 50 | import org.apache.commons.lang3.mutable.MutableBoolean; |
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| 51 | |
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| 52 | import org.apache.james.mime4j.util.CharsetUtil; |
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| 53 | |
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| 54 | import serpro.mailarchiver.util.BodyVisitor; |
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| 55 | import serpro.mailarchiver.util.Charsets; |
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| 56 | import serpro.mailarchiver.util.Logger; |
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| 57 | |
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| 58 | @PersistenceCapable |
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| 59 | public class TextBody |
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| 60 | extends SingleBody |
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| 61 | { |
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| 62 | @NotPersistent |
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| 63 | private static final Logger log = Logger.getLocalLogger(); |
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| 64 | |
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| 65 | @NotPersistent private static final String CR = "\015"; |
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| 66 | @NotPersistent private static final String LF = "\012"; |
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| 67 | @NotPersistent private static final String CRLF = "\015\012"; |
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| 68 | |
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| 69 | //**** P E R S I S T E N T **** |
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| 70 | private String preview; |
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| 71 | //***************************** |
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| 72 | |
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| 73 | public final String getPreview() { |
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| 74 | return preview; |
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| 75 | } |
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| 76 | |
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| 77 | public final void setPreview(String preview) { |
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| 78 | this.preview = preview; |
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| 79 | } |
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| 80 | |
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| 81 | //-------------------------------------------------------------------------- |
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| 82 | @Override |
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| 83 | final String toString(String pad) { |
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| 84 | return String.format( |
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| 85 | "TextBody%n" |
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| 86 | + "%1$sjdoState: %2$s%n" |
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| 87 | + "%1$soid: %3$s%n" |
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| 88 | + "%1$shash: %4$x%n" |
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| 89 | + "%1$soffset: %5$d%n" |
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| 90 | + "%1$slength: %6$d%n" |
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| 91 | + "%1$ssize: %7$d%n" |
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| 92 | + "%1$spreview: %8$s" |
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| 93 | , pad |
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| 94 | , JDOHelper.getObjectState(this) |
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| 95 | , getOid() |
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| 96 | , hashCode() |
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| 97 | , getOffset() |
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| 98 | , getLength() |
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| 99 | , getSize() |
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| 100 | , getPreview()); |
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| 101 | } |
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| 102 | |
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| 103 | //-------------------------------------------------------------------------- |
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| 104 | public String getText() throws IOException { |
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| 105 | Entity entity = getEntity(); |
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| 106 | if(entity != null) { |
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| 107 | ContentTypeField contentTypeField = entity.getContentTypeField(); |
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| 108 | |
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| 109 | Charset cs = null; |
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| 110 | if(contentTypeField != null) { |
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| 111 | cs = CharsetUtil.lookup(contentTypeField.getCharset()); |
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| 112 | } |
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| 113 | if(cs == null) { |
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| 114 | cs = Charsets.Windows_1252; |
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| 115 | } |
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| 116 | |
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| 117 | InputStream is = getDecoderInputStream(); |
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| 118 | InputStreamReader isr = new InputStreamReader(is, cs); |
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| 119 | BufferedReader reader = new BufferedReader(isr); |
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| 120 | |
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| 121 | StringBuilder sb = new StringBuilder(); |
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| 122 | |
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| 123 | char[] cbuf = new char[0x1000]; |
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| 124 | int len; |
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| 125 | while((len = reader.read(cbuf)) > 0) { |
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| 126 | sb.append(cbuf, 0, len); |
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| 127 | } |
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| 128 | |
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| 129 | reader.close(); |
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| 130 | isr.close(); |
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| 131 | is.close(); |
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| 132 | |
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| 133 | return sb.toString(); |
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| 134 | } |
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| 135 | throw new IllegalStateException(); |
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| 136 | } |
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| 137 | |
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| 138 | public String getAdaptedText() throws IOException { |
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| 139 | String text = getText(); |
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| 140 | Entity entity = getEntity(); |
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| 141 | if(entity != null) { |
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| 142 | ContentTypeField contentTypeField = entity.getContentTypeField(); |
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| 143 | if((contentTypeField == null) || (contentTypeField.isTextPlainMimeType())) { |
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| 144 | text = text.replaceAll(CRLF + "|" + CR + "|" + LF, "<br>" + LF); |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | text = StringEscapeUtils.unescapeHtml4(text); |
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| 149 | text = replaceMailToRef(text); |
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| 150 | text = replaceContentIdRef(text); |
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| 151 | text = replaceUrlRef(text); |
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| 152 | return text; |
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| 153 | } |
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| 154 | |
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| 155 | //-------------------------------------------------------------------------- |
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| 156 | @NotPersistent |
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| 157 | private static final String contentIdRegex = "src\\s*=(\\.*(?!cid))(" + |
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| 158 | "'\\s*cid:\\s*([^'\\s<>]*)\\s*'" + |
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| 159 | "|" + |
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| 160 | "\"\\s*cid:\\s*([^\"\\s<>]*)\\s*\"" + |
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| 161 | "|" + |
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| 162 | "cid:\\s*([^\\s<>]+)" + |
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| 163 | ")"; |
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| 164 | @NotPersistent |
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| 165 | private static final Pattern contentIdPattern = Pattern.compile(contentIdRegex, Pattern.CASE_INSENSITIVE); |
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| 166 | |
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| 167 | private String replaceContentIdRef(String text) { |
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| 168 | Matcher m = contentIdPattern.matcher(text); |
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| 169 | final StringBuilder sb = new StringBuilder(); |
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| 170 | int lastEnd = 0; |
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| 171 | while(m.find()) { |
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| 172 | sb.append(text.substring(lastEnd, m.start())) |
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| 173 | .append("src=\""); |
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| 174 | |
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| 175 | final String cid = |
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| 176 | m.group(4) != null ? m.group(4) : |
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| 177 | m.group(5) != null ? m.group(5) : |
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| 178 | m.group(6) != null ? m.group(6) : |
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| 179 | null; |
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| 180 | |
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| 181 | final MutableBoolean binaryBodyFound = new MutableBoolean(false); |
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| 182 | |
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| 183 | getRootMessage().visitBodies(new BodyVisitor() { |
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| 184 | @Override |
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| 185 | public void visitBinaryBody(BinaryBody binaryBody) { |
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| 186 | Entity entity = binaryBody.getEntity(); |
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| 187 | UnstructuredField contentIdField = entity.getContentIdField(); |
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| 188 | if(contentIdField != null) { |
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| 189 | if(contentIdField.getText().equalsIgnoreCase(cid)) { |
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| 190 | sb.append("\" name=\"embedded_img_").append(binaryBody.getOid()).append("/").append(binaryBody.getFileName()).append("\" "); |
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| 191 | binaryBodyFound.setValue(true); |
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| 192 | quit(); |
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| 193 | } |
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| 194 | } |
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| 195 | } |
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| 196 | }); |
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| 197 | |
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| 198 | if(binaryBodyFound.isFalse()) { |
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| 199 | sb.append("cid:").append(cid).append("\" "); |
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| 200 | } |
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| 201 | |
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| 202 | lastEnd = m.end(); |
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| 203 | } |
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| 204 | sb.append(text.substring(lastEnd)); |
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| 205 | return sb.toString(); |
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| 206 | } |
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| 207 | |
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| 208 | //-------------------------------------------------------------------------- |
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| 209 | @NotPersistent |
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| 210 | private static final String mailToRegex = "href\\s*=\\s*(" + |
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| 211 | "'\\s*mailto:\\s*([^'\\s<>]*)\\s*'" + |
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| 212 | "|" + |
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| 213 | "\"\\s*mailto:\\s*([^\"\\s<>]*)\\s*\"" + |
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| 214 | "|" + |
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| 215 | "mailto:\\s*([^\\s<>]+)" + |
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| 216 | ")"; |
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| 217 | @NotPersistent |
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| 218 | private static final Pattern mailToPattern = Pattern.compile(mailToRegex, Pattern.CASE_INSENSITIVE); |
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| 219 | |
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| 220 | private String replaceMailToRef(String text) { |
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| 221 | Matcher m = mailToPattern.matcher(text); |
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| 222 | StringBuilder sb = new StringBuilder(); |
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| 223 | int lastEnd = 0; |
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| 224 | while(m.find()) { |
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| 225 | sb.append(text.substring(lastEnd, m.start())) |
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| 226 | .append("name=\"_mailto\" href=\"javascript:new_message_to('"); |
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| 227 | |
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| 228 | if(m.group(2) != null) { |
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| 229 | sb.append(m.group(2)); |
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| 230 | } |
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| 231 | else if(m.group(3) != null) { |
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| 232 | sb.append(m.group(3)); |
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| 233 | } |
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| 234 | else if(m.group(4) != null) { |
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| 235 | sb.append(m.group(4)); |
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| 236 | } |
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| 237 | sb.append("');\""); |
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| 238 | lastEnd = m.end(); |
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| 239 | } |
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| 240 | sb.append(text.substring(lastEnd)); |
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| 241 | return sb.toString(); |
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| 242 | } |
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| 243 | |
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| 244 | //-------------------------------------------------------------------------- |
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| 245 | @NotPersistent |
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| 246 | private static final String urlRegex = "\\b(" + |
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| 247 | "(?:(https?://)|www\\d{0,3}[.]|[a-z0-9.\\-]+[.](?=(?:com|org|net|gov|mil|info)(?:[.]br)?)|[a-z0-9.\\-]+[.][a-z]{2,4}/)" + |
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| 248 | "(?:[^\\s()<>]+|\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\))+" + |
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| 249 | "(?:\\(([^\\s()<>]+|(\\([^\\s()<>]+\\)))*\\)|[^\\s`!()\\[\\]{};:'\".,<>\\?«»ââââ]))"; |
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| 250 | @NotPersistent |
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| 251 | private static final Pattern urlPattern = Pattern.compile(urlRegex, Pattern.CASE_INSENSITIVE); |
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| 252 | |
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| 253 | private String replaceUrlRef(String text) { |
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| 254 | |
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| 255 | Source source = new Source(text); |
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| 256 | source.fullSequentialParse(); |
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| 257 | |
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| 258 | Matcher m = urlPattern.matcher(text); |
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| 259 | StringBuilder sb = new StringBuilder(); |
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| 260 | int lastEnd = 0; |
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| 261 | find: |
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| 262 | while(m.find()) { |
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| 263 | |
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| 264 | Element element = source.getEnclosingElement(m.start()); |
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| 265 | while(element != null) { |
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| 266 | String elementName = element.getName(); |
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| 267 | |
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| 268 | if(elementName == HTMLElementName.A |
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| 269 | || elementName == HTMLElementName.LINK |
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| 270 | || elementName == HTMLElementName.AREA |
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| 271 | || elementName == HTMLElementName.BASE |
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| 272 | || elementName == HTMLElementName.META |
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| 273 | || elementName == HTMLElementName.SCRIPT |
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| 274 | || elementName == HTMLElementName.IMG |
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| 275 | || elementName == HTMLElementName.VIDEO |
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| 276 | || elementName == HTMLElementName.AUDIO |
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| 277 | || elementName == HTMLElementName.SOURCE |
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| 278 | || elementName == HTMLElementName.BLOCKQUOTE |
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| 279 | || elementName == HTMLElementName.DEL |
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| 280 | || elementName == HTMLElementName.INS |
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| 281 | || elementName == HTMLElementName.Q |
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| 282 | || elementName == HTMLElementName.BUTTON |
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| 283 | || elementName == HTMLElementName.INPUT |
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| 284 | || elementName == HTMLElementName.OBJECT |
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| 285 | || elementName == HTMLElementName.EMBED |
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| 286 | || elementName == HTMLElementName.COMMAND) |
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| 287 | { |
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| 288 | continue find; |
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| 289 | } |
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| 290 | |
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| 291 | Tag startTag = element.getStartTag(); |
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| 292 | |
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| 293 | if((startTag.getBegin() < m.start()) && (m.start() < startTag.getEnd())) { |
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| 294 | continue find; |
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| 295 | } |
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| 296 | |
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| 297 | element = element.getParentElement(); |
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| 298 | } |
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| 299 | |
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| 300 | sb.append(text.substring(lastEnd, m.start())) |
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| 301 | .append("<a href=\""); |
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| 302 | |
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| 303 | if(m.group(2) == null) { |
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| 304 | sb.append("http://"); |
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| 305 | } |
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| 306 | |
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| 307 | sb.append(m.group()).append("\">").append(m.group(1)).append("</a>"); |
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| 308 | lastEnd = m.end(); |
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| 309 | } |
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| 310 | sb.append(text.substring(lastEnd)); |
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| 311 | return sb.toString(); |
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| 312 | } |
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| 313 | } |
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