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Diffstat (limited to 'org/apache/commons/net/smtp/SimpleSMTPHeader.java')
| -rw-r--r-- | org/apache/commons/net/smtp/SimpleSMTPHeader.java | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/org/apache/commons/net/smtp/SimpleSMTPHeader.java b/org/apache/commons/net/smtp/SimpleSMTPHeader.java new file mode 100644 index 0000000..ed0ea4d --- /dev/null +++ b/org/apache/commons/net/smtp/SimpleSMTPHeader.java @@ -0,0 +1,153 @@ +/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.net.smtp;
+
+/***
+ * This class is used to construct a bare minimum
+ * acceptable header for an email message. To construct more
+ * complicated headers you should refer to RFC 822. When the
+ * Java Mail API is finalized, you will be
+ * able to use it to compose fully compliant Internet text messages.
+ * <p>
+ * The main purpose of the class is to faciliatate the mail sending
+ * process, by relieving the programmer from having to explicitly format
+ * a simple message header. For example:
+ * <pre>
+ * writer = client.sendMessageData();
+ * if(writer == null) // failure
+ * return false;
+ * header =
+ * new SimpleSMTPHeader("foobar@foo.com", "foo@bar.com" "Just testing");
+ * header.addCC("bar@foo.com");
+ * header.addHeaderField("Organization", "Foobar, Inc.");
+ * writer.write(header.toString());
+ * writer.write("This is just a test");
+ * writer.close();
+ * if(!client.completePendingCommand()) // failure
+ * return false;
+ * </pre>
+ * <p>
+ * <p>
+ * @author Daniel F. Savarese
+ * @see SMTPClient
+ ***/
+
+public class SimpleSMTPHeader
+{
+ private String __subject, __from, __to;
+ private StringBuffer __headerFields, __cc;
+
+ /***
+ * Creates a new SimpleSMTPHeader instance initialized with the given
+ * from, to, and subject header field values.
+ * <p>
+ * @param from The value of the <code>From:</code> header field. This
+ * should be the sender's email address.
+ * @param to The value of the <code>To:</code> header field. This
+ * should be the recipient's email address.
+ * @param subject The value of the <code>Subject:</code> header field.
+ * This should be the subject of the message.
+ ***/
+ public SimpleSMTPHeader(String from, String to, String subject)
+ {
+ __to = to;
+ __from = from;
+ __subject = subject;
+ __headerFields = new StringBuffer();
+ __cc = null;
+ }
+
+ /***
+ * Adds an arbitrary header field with the given value to the article
+ * header. These headers will be written before the From, To, Subject, and
+ * Cc fields when the SimpleSMTPHeader is convertered to a string.
+ * An example use would be:
+ * <pre>
+ * header.addHeaderField("Organization", "Foobar, Inc.");
+ * </pre>
+ * <p>
+ * @param headerField The header field to add, not including the colon.
+ * @param value The value of the added header field.
+ ***/
+ public void addHeaderField(String headerField, String value)
+ {
+ __headerFields.append(headerField);
+ __headerFields.append(": ");
+ __headerFields.append(value);
+ __headerFields.append('\n');
+ }
+
+
+ /***
+ * Add an email address to the CC (carbon copy or courtesy copy) list.
+ * <p>
+ * @param address The email address to add to the CC list.
+ ***/
+ public void addCC(String address)
+ {
+ if (__cc == null)
+ __cc = new StringBuffer();
+ else
+ __cc.append(", ");
+
+ __cc.append(address);
+ }
+
+
+ /***
+ * Converts the SimpleSMTPHeader to a properly formatted header in
+ * the form of a String, including the blank line used to separate
+ * the header from the article body. The header fields CC and Subject
+ * are only included when they are non-null.
+ * <p>
+ * @return The message header in the form of a String.
+ ***/
+ @Override
+ public String toString()
+ {
+ StringBuffer header = new StringBuffer();
+
+ if (__headerFields.length() > 0)
+ header.append(__headerFields.toString());
+
+ header.append("From: ");
+ header.append(__from);
+ header.append("\nTo: ");
+ header.append(__to);
+
+ if (__cc != null)
+ {
+ header.append("\nCc: ");
+ header.append(__cc.toString());
+ }
+
+ if (__subject != null)
+ {
+ header.append("\nSubject: ");
+ header.append(__subject);
+ }
+
+ header.append('\n');
+ header.append('\n');
+
+ return header.toString();
+ }
+}
+
+
+
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