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annotate mail/src/luan/modules/mail/SmtpCon.java @ 375:e2e70d27c258

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simplify mail
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 17 Apr 2015 18:34:02 -0600
parents cbb94a7c7a9e
children d9df6d6cb927
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1 package luan.modules.mail;
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2
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3 import java.io.IOException;
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4 import java.util.Map;
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5 import java.util.HashMap;
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6 import java.util.Properties;
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7 import javax.mail.Authenticator;
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8 import javax.mail.PasswordAuthentication;
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9 import javax.mail.Session;
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10 import javax.mail.Transport;
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11 import javax.mail.Message;
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12 import javax.mail.MessagingException;
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13 import javax.mail.Part;
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14 import javax.mail.internet.MimeMessage;
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15 import javax.mail.internet.MimeMultipart;
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16 import javax.mail.internet.MimeBodyPart;
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17 import luan.Luan;
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18 import luan.LuanState;
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19 import luan.LuanTable;
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20 import luan.LuanJavaFunction;
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21 import luan.LuanException;
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24 public final class SmtpCon {
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25 private final Session session;
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27 public SmtpCon(LuanState luan,LuanTable paramsTbl) throws LuanException {
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28 Map<Object,Object> params = new HashMap<Object,Object>(paramsTbl.asMap());
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29 Properties props = new Properties(System.getProperties());
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31 String host = getString(luan,params,"host");
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32 if( host==null )
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33 throw luan.exception( "parameter 'host' is required" );
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34 props.setProperty("mail.smtp.host",host);
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36 Object port = params.remove("port");
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37 if( port != null ) {
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38 String s;
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39 if( port instanceof String ) {
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40 s = (String)port;
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41 } else if( port instanceof Number ) {
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42 Integer i = Luan.asInteger(port);
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43 if( i == null )
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44 throw luan.exception( "parameter 'port' must be an integer" );
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45 s = i.toString();
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46 } else {
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47 throw luan.exception( "parameter 'port' must be an integer" );
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48 }
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49 props.setProperty("mail.smtp.socketFactory.port", s);
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50 props.setProperty("mail.smtp.port", s);
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51 }
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53 String username = getString(luan,params,"username");
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54 if( username == null ) {
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55 session = Session.getInstance(props);
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56 } else {
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57 String password = getString(luan,params,"password");
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58 if( password==null )
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59 throw luan.exception( "parameter 'password' is required with 'username'" );
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60 props.setProperty("mail.smtp.auth","true");
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61 final PasswordAuthentication pa = new PasswordAuthentication(username,password);
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62 Authenticator auth = new Authenticator() {
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63 protected PasswordAuthentication getPasswordAuthentication() {
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64 return pa;
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65 }
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66 };
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67 session = Session.getInstance(props,auth);
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68 }
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70 if( !params.isEmpty() )
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71 throw luan.exception( "unrecognized parameters: "+params );
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72 }
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74 private String getString(LuanState luan,Map<Object,Object> params,String key) throws LuanException {
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75 Object val = params.remove(key);
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76 if( val!=null && !(val instanceof String) )
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77 throw luan.exception( "parameter '"+key+"' must be a string" );
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78 return (String)val;
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79 }
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82 public void send(LuanState luan,LuanTable mailTbl) throws LuanException {
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83 try {
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84 Map<Object,Object> mailParams = new HashMap<Object,Object>(mailTbl.asMap());
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85 MimeMessage msg = new MimeMessage(session);
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87 String from = getString(luan,mailParams,"from");
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88 if( from != null )
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89 msg.setFrom(from);
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91 String to = getString(luan,mailParams,"to");
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92 if( to != null )
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93 msg.setRecipients(Message.RecipientType.TO,to);
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95 String cc = getString(luan,mailParams,"cc");
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96 if( cc != null )
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97 msg.setRecipients(Message.RecipientType.CC,cc);
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99 String subject = getString(luan,mailParams,"subject");
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100 if( subject != null )
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101 msg.setSubject(subject);
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103 Object body = mailParams.remove("body");
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104 Object attachments = mailParams.remove("attachments");
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105 Part bodyPart = attachments==null ? msg : new MimeBodyPart();
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106
270
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107 if( body != null ) {
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108 if( body instanceof String ) {
360
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109 bodyPart.setText((String)body);
270
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110 } else if( body instanceof LuanTable ) {
273
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111 LuanTable bodyTbl = (LuanTable)body;
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112 Map<Object,Object> map = new HashMap<Object,Object>(bodyTbl.asMap());
270
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113 MimeMultipart mp = new MimeMultipart("alternative");
273
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114 String text = (String)map.remove("text");
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115 if( text != null ) {
270
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116 MimeBodyPart part = new MimeBodyPart();
273
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117 part.setText(text);
270
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118 mp.addBodyPart(part);
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119 }
273
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120 String html = (String)map.remove("html");
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121 if( html != null ) {
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122 MimeBodyPart part = new MimeBodyPart();
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123 part.setContent(html,"text/html");
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124 mp.addBodyPart(part);
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125 }
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126 if( !map.isEmpty() )
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127 throw luan.exception( "invalid body types: " + map );
360
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128 bodyPart.setContent(mp);
270
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129 } else
360
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130 throw luan.exception( "parameter 'body' must be a string or table" );
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131 }
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132
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133 if( attachments != null ) {
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134 if( !(attachments instanceof LuanTable) )
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135 throw luan.exception( "parameter 'attachments' must be a table" );
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136 LuanTable attachmentsTbl = (LuanTable)attachments;
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137 if( !attachmentsTbl.isList() )
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138 throw luan.exception( "parameter 'attachments' must be a list" );
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139 MimeMultipart mp = new MimeMultipart("mixed");
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140 if( body != null )
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141 mp.addBodyPart((MimeBodyPart)bodyPart);
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142 for( Object attachment : attachmentsTbl.asList() ) {
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143 if( !(attachment instanceof LuanTable) )
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144 throw luan.exception( "each attachment must be a table" );
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145 Map<Object,Object> attachmentMap = new HashMap<Object,Object>(((LuanTable)attachment).asMap());
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146 Object obj;
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147
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148 obj = attachmentMap.remove("filename");
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149 if( obj==null )
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150 throw luan.exception( "an attachment is missing 'filename'" );
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151 if( !(obj instanceof String) )
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152 throw luan.exception( "an attachment filename must be a string" );
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153 String filename = (String)obj;
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154
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155 obj = attachmentMap.remove("content_type");
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156 if( obj==null )
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157 throw luan.exception( "an attachment is missing 'content_type'" );
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158 if( !(obj instanceof String) )
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159 throw luan.exception( "an attachment content_type must be a string" );
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160 String content_type = (String)obj;
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161
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162 Object content = attachmentMap.remove("content");
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163 if( content==null )
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164 throw luan.exception( "an attachment is missing 'content'" );
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165 if( content_type.startsWith("text/") && content instanceof byte[] )
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166 content = new String((byte[])content);
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167
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168 if( !attachmentMap.isEmpty() )
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169 throw luan.exception( "unrecognized attachment parameters: "+attachmentMap );
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170
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171 MimeBodyPart part = new MimeBodyPart();
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172 part.setContent(content,content_type);
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173 part.setFileName(filename);
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174 mp.addBodyPart(part);
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175 }
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176 msg.setContent(mp);
270
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177 }
228
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parents:
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178
289
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179 if( !mailParams.isEmpty() )
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180 throw luan.exception( "unrecognized parameters: "+mailParams );
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181
228
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parents:
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182 Transport.send(msg);
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183 } catch(MessagingException e) {
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184 throw luan.exception(e);
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185 }
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parents:
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186 }
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parents:
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187
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parents:
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188 }