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.service.web; |
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31 | |
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32 | import java.io.IOException; |
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33 | import java.io.StringReader; |
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34 | import java.io.UnsupportedEncodingException; |
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35 | import java.nio.file.Files; |
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36 | import java.security.MessageDigest; |
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37 | import java.security.NoSuchAlgorithmException; |
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38 | import java.util.ArrayList; |
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39 | import java.util.Collections; |
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40 | import java.util.Comparator; |
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41 | import java.util.List; |
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42 | |
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43 | import javax.jdo.annotations.PersistenceAware; |
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44 | import javax.xml.stream.XMLInputFactory; |
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45 | import javax.xml.stream.XMLStreamException; |
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46 | |
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47 | import org.codehaus.jettison.mapped.Configuration; |
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48 | import org.codehaus.jettison.mapped.MappedXMLInputFactory; |
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49 | import org.codehaus.staxmate.SMInputFactory; |
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50 | import org.codehaus.staxmate.in.SMHierarchicCursor; |
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51 | import org.codehaus.staxmate.in.SMInputCursor; |
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52 | |
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53 | import org.springframework.beans.factory.annotation.Autowired; |
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54 | |
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55 | import com.ctc.wstx.stax.WstxInputFactory; |
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56 | |
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57 | import de.schlichtherle.truezip.file.TFile; |
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58 | import de.schlichtherle.truezip.nio.file.TPath; |
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59 | import de.schlichtherle.truezip.fs.FsSyncException; |
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60 | |
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61 | import serpro.mailarchiver.domain.metaarchive.Folder; |
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62 | import serpro.mailarchiver.domain.metaarchive.Message; |
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63 | import serpro.mailarchiver.service.BaseService; |
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64 | import serpro.mailarchiver.service.find.FFolder; |
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65 | import serpro.mailarchiver.service.find.FMessage; |
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66 | import serpro.mailarchiver.util.Logger; |
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67 | import serpro.mailarchiver.util.UserAppConfig; |
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68 | import serpro.mailarchiver.util.transaction.WithReadOnlyTx; |
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69 | |
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70 | @PersistenceAware |
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71 | public class DefaultZipMessagesOperation |
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72 | extends BaseService |
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73 | implements ZipMessagesOperation |
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74 | { |
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75 | private static final Logger log = Logger.getLocalLogger(); |
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76 | |
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77 | @Autowired |
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78 | private FMessage findMessage; |
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79 | |
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80 | @Autowired |
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81 | private FFolder findFolder; |
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82 | |
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83 | @Autowired |
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84 | private UserAppConfig userAppConfig; |
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85 | |
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86 | @WithReadOnlyTx |
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87 | @Override |
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88 | public String apply(String zipConfig) throws ServiceFault { |
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89 | |
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90 | /* |
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91 | * zipConfig: |
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92 | * |
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93 | * <zip format="zip|jar|tar|tar.gz|tgz|tar.bz2|tb2|tbz"> |
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94 | * |
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95 | * <message id="id"/> |
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96 | * |
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97 | * <folder id="id"/> |
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98 | * <folder id="id" recursive="true|false"/> |
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99 | * |
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100 | * </zip> |
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101 | */ |
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102 | |
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103 | if(zipConfig.isEmpty()) { |
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104 | ServiceFault.invalidZipConfig() |
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105 | .setActor("zipMessages") |
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106 | .setMessage("Zip config is null or empty.") |
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107 | .raise(); |
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108 | } |
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109 | |
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110 | XMLInputFactory inf = null; |
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111 | switch(zipConfig.charAt(0)) { |
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112 | case '<': |
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113 | inf = new WstxInputFactory(); |
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114 | break; |
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115 | |
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116 | case '{': |
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117 | Configuration config = new Configuration(); |
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118 | config.setIgnoreNamespaces(true); |
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119 | inf = new MappedXMLInputFactory(config); |
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120 | break; |
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121 | |
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122 | default: |
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123 | ServiceFault.invalidZipConfig() |
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124 | .setActor("zipMessages") |
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125 | .setMessage("Invalid zip config.") |
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126 | .raise(); |
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127 | } |
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128 | |
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129 | String guid = null; |
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130 | |
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131 | SMInputFactory sminf = new SMInputFactory(inf); |
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132 | StringReader strReader = new StringReader(zipConfig); |
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133 | |
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134 | try { |
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135 | SMHierarchicCursor cursor0 = sminf.rootElementCursor(strReader); |
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136 | cursor0.advance(); |
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137 | String localName0 = cursor0.getLocalName(); |
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138 | if(localName0.equalsIgnoreCase("zip")) { |
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139 | String format = "zip"; |
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140 | for(int i = 0; i < cursor0.getAttrCount(); i++) { |
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141 | String attrLocalName0 = cursor0.getAttrLocalName(i); |
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142 | if(attrLocalName0.equalsIgnoreCase("format")) { |
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143 | format = cursor0.getAttrValue(i); |
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144 | } |
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145 | else { |
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146 | //ignore ? |
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147 | } |
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148 | } |
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149 | |
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150 | if((!format.equalsIgnoreCase("zip")) |
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151 | && (!format.equalsIgnoreCase("jar")) |
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152 | && (!format.equalsIgnoreCase("tar")) |
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153 | && (!format.equalsIgnoreCase("tar.gz")) |
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154 | && (!format.equalsIgnoreCase("tgz")) |
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155 | && (!format.equalsIgnoreCase("tar.bz2")) |
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156 | && (!format.equalsIgnoreCase("tb2")) |
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157 | && (!format.equalsIgnoreCase("tbz"))) { |
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158 | |
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159 | ServiceFault.unsupportedArchiveFormat() |
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160 | .setActor("zipMessages") |
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161 | .setMessage("Unsupported archive format.") |
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162 | .addValue("format", format) |
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163 | .raise(); |
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164 | } |
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165 | |
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166 | List<Message> messages = new ArrayList<Message>(); |
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167 | |
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168 | SMInputCursor cursor1 = cursor0.childElementCursor(); |
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169 | while(cursor1.getNext() != null) { |
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170 | String localName1 = cursor1.getLocalName(); |
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171 | if(localName1.equalsIgnoreCase("message")) { |
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172 | String messageId = ""; |
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173 | for(int i = 0; i < cursor1.getAttrCount(); i++) { |
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174 | String attrLocalName1 = cursor1.getAttrLocalName(i); |
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175 | if(attrLocalName1.equalsIgnoreCase("id")) { |
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176 | messageId = cursor1.getAttrValue(i); |
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177 | } |
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178 | else { |
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179 | //ignore ? |
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180 | } |
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181 | } |
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182 | addMessage(messages, messageId); |
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183 | } |
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184 | else if(localName1.equalsIgnoreCase("folder")) { |
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185 | String folderId = ""; |
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186 | boolean recursive = false; |
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187 | for(int i = 0; i < cursor1.getAttrCount(); i++) { |
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188 | String attrLocalName1 = cursor1.getAttrLocalName(i); |
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189 | if(attrLocalName1.equalsIgnoreCase("id")) { |
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190 | folderId = cursor1.getAttrValue(i); |
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191 | } |
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192 | else if(attrLocalName1.equalsIgnoreCase("recursive")) { |
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193 | recursive = cursor1.getAttrBooleanValue(i); |
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194 | } |
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195 | else { |
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196 | //ignore ? |
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197 | } |
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198 | } |
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199 | addFolder(messages, folderId, recursive); |
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200 | } |
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201 | else { |
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202 | //ignore ? |
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203 | } |
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204 | } |
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205 | |
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206 | Collections.sort(messages, new Comparator<Message>() { |
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207 | @Override |
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208 | public int compare(Message m1, Message m2) { |
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209 | return m1.getRelativePath().compareTo(m2.getRelativePath()); |
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210 | } |
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211 | }); |
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212 | |
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213 | try { |
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214 | MessageDigest md = MessageDigest.getInstance("MD5"); |
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215 | |
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216 | md.update(format.getBytes("UTF-8")); |
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217 | |
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218 | for(Message message : messages) { |
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219 | md.update(message.getOid().getBytes("UTF-8")); |
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220 | } |
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221 | |
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222 | char[] hexDigest = new char[32]; |
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223 | int i = 0; |
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224 | for(byte b : md.digest()) { |
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225 | hexDigest[i++] = Character.forDigit((char)((b & 0xf0) >>> 4), 16); |
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226 | hexDigest[i++] = Character.forDigit((char)(b & 0x0f), 16); |
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227 | } |
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228 | |
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229 | String digest = new String(hexDigest); |
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230 | |
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231 | guid = digest.substring(0, 8) + |
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232 | "-" + digest.substring(8, 12) + |
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233 | "-" + digest.substring(12, 16) + |
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234 | "-" + digest.substring(16, 20) + |
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235 | "-" + digest.substring(20, 32); |
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236 | } |
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237 | catch(NoSuchAlgorithmException ex) { |
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238 | } |
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239 | catch(UnsupportedEncodingException ex) { |
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240 | } |
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241 | |
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242 | TPath zip = new TPath(userAppConfig.SERVER.getArchiveDir().resolve("temp").resolve("mails_" + guid + "." + format)); |
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243 | if(Files.notExists(zip)) { |
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244 | try { |
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245 | for(Message message : messages) { |
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246 | TFile.cp(message.getAbsolutePath().toFile(), zip.resolve(message.getRelativePath()).toFile()); |
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247 | } |
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248 | } |
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249 | catch(IOException ex) { |
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250 | ServiceFault.fileSystemFailure() |
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251 | .setActor("zipMessages") |
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252 | .setMessage("Filesystem archive message failure.") |
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253 | .setCause(ex) |
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254 | .raise(); |
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255 | } |
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256 | finally { |
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257 | try { |
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258 | TFile.umount(zip.toFile(), true); |
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259 | } |
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260 | catch(FsSyncException ex) { |
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261 | ServiceFault.fileSystemFailure() |
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262 | .setActor("zipMessages") |
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263 | .setMessage("Archive umount failure.") |
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264 | .setCause(ex) |
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265 | .raise(); |
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266 | } |
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267 | } |
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268 | } |
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269 | } |
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270 | else { |
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271 | //ignore ? |
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272 | } |
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273 | } |
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274 | catch(XMLStreamException ex) { |
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275 | ServiceFault.runtimeException() |
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276 | .setActor("zipMessages") |
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277 | .setMessage("Zip config parse exception.") |
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278 | .setCause(ex) |
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279 | .raise(); |
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280 | } |
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281 | |
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282 | return guid; |
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283 | } |
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284 | |
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285 | private void addMessage(List<Message> messages, String messageId) throws ServiceFault { |
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286 | |
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287 | if(messageId.isEmpty()) { |
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288 | ServiceFault.invalidMessageId() |
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289 | .setActor("zipMessages") |
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290 | .setMessage("Message id is empty or null.") |
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291 | .raise(); |
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292 | } |
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293 | |
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294 | Message message = findMessage.byId(messageId); |
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295 | |
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296 | if(message == null) { |
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297 | ServiceFault.messageNotFound() |
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298 | .setActor("zipMessages") |
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299 | .setMessage("Message not found.") |
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300 | .addValue("messageId", messageId) |
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301 | .raise(); |
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302 | } |
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303 | |
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304 | if( ! messages.contains(message)) { |
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305 | messages.add(message); |
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306 | } |
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307 | } |
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308 | |
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309 | private void addFolder(List<Message> messages, String folderId, boolean recursive) throws ServiceFault { |
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310 | |
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311 | Folder folder = findFolder.byId(folderId); |
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312 | |
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313 | if(folder == null) { |
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314 | ServiceFault.folderNotFound() |
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315 | .setActor("zipMessages") |
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316 | .setMessage("Folder not found.") |
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317 | .addValue("folderId", folderId) |
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318 | .raise(); |
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319 | } |
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320 | |
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321 | addFolder(messages, folder, recursive); |
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322 | } |
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323 | |
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324 | private void addFolder(List<Message> messages, Folder folder, boolean recursive) { |
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325 | |
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326 | for(Message message : folder.getMessages()) { |
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327 | if( ! messages.contains(message)) { |
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328 | messages.add(message); |
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329 | } |
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330 | } |
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331 | |
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332 | if(recursive) { |
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333 | for(Folder child : folder.getChildren()) { |
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334 | addFolder(messages, child, recursive); |
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335 | } |
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336 | } |
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337 | } |
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338 | |
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339 | } |
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