[6785] | 1 | /**************************************************************** |
---|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
---|
| 3 | * or more contributor license agreements. See the NOTICE file * |
---|
| 4 | * distributed with this work for additional information * |
---|
| 5 | * regarding copyright ownership. The ASF licenses this file * |
---|
| 6 | * to you under the Apache License, Version 2.0 (the * |
---|
| 7 | * "License"); you may not use this file except in compliance * |
---|
| 8 | * with the License. You may obtain a copy of the License at * |
---|
| 9 | * * |
---|
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
---|
| 11 | * * |
---|
| 12 | * Unless required by applicable law or agreed to in writing, * |
---|
| 13 | * software distributed under the License is distributed on an * |
---|
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
---|
| 15 | * KIND, either express or implied. See the License for the * |
---|
| 16 | * specific language governing permissions and limitations * |
---|
| 17 | * under the License. * |
---|
| 18 | ****************************************************************/ |
---|
| 19 | |
---|
| 20 | package org.apache.james.mime4j.field.address; |
---|
| 21 | |
---|
| 22 | import java.util.ArrayList; |
---|
| 23 | import java.util.Iterator; |
---|
| 24 | import java.util.List; |
---|
| 25 | |
---|
| 26 | import org.apache.james.mime4j.codec.DecodeMonitor; |
---|
| 27 | import org.apache.james.mime4j.codec.DecoderUtil; |
---|
| 28 | import org.apache.james.mime4j.dom.address.Address; |
---|
| 29 | import org.apache.james.mime4j.dom.address.AddressList; |
---|
| 30 | import org.apache.james.mime4j.dom.address.DomainList; |
---|
| 31 | import org.apache.james.mime4j.dom.address.Group; |
---|
| 32 | import org.apache.james.mime4j.dom.address.Mailbox; |
---|
| 33 | import org.apache.james.mime4j.dom.address.MailboxList; |
---|
| 34 | import org.apache.james.mime4j.field.address.ASTaddr_spec; |
---|
| 35 | import org.apache.james.mime4j.field.address.ASTaddress; |
---|
| 36 | import org.apache.james.mime4j.field.address.ASTaddress_list; |
---|
| 37 | import org.apache.james.mime4j.field.address.ASTangle_addr; |
---|
| 38 | import org.apache.james.mime4j.field.address.ASTdomain; |
---|
| 39 | import org.apache.james.mime4j.field.address.ASTgroup_body; |
---|
| 40 | import org.apache.james.mime4j.field.address.ASTlocal_part; |
---|
| 41 | import org.apache.james.mime4j.field.address.ASTmailbox; |
---|
| 42 | import org.apache.james.mime4j.field.address.ASTname_addr; |
---|
| 43 | import org.apache.james.mime4j.field.address.ASTphrase; |
---|
| 44 | import org.apache.james.mime4j.field.address.ASTroute; |
---|
| 45 | import org.apache.james.mime4j.field.address.Node; |
---|
| 46 | import org.apache.james.mime4j.field.address.ParseException; |
---|
| 47 | import org.apache.james.mime4j.field.address.SimpleNode; |
---|
| 48 | import org.apache.james.mime4j.field.address.Token; |
---|
| 49 | |
---|
| 50 | /** |
---|
| 51 | * Transforms the JJTree-generated abstract syntax tree into a graph of |
---|
| 52 | * org.apache.james.mime4j.dom.address objects. |
---|
| 53 | */ |
---|
| 54 | class Builder { |
---|
| 55 | |
---|
| 56 | private static Builder singleton = new Builder(); |
---|
| 57 | |
---|
| 58 | public static Builder getInstance() { |
---|
| 59 | return singleton; |
---|
| 60 | } |
---|
| 61 | |
---|
| 62 | public AddressList buildAddressList(ASTaddress_list node, DecodeMonitor monitor) throws ParseException { |
---|
| 63 | List<Address> list = new ArrayList<Address>(); |
---|
| 64 | for (int i = 0; i < node.jjtGetNumChildren(); i++) { |
---|
| 65 | ASTaddress childNode = (ASTaddress) node.jjtGetChild(i); |
---|
| 66 | Address address = buildAddress(childNode, monitor); |
---|
| 67 | list.add(address); |
---|
| 68 | } |
---|
| 69 | return new AddressList(list, true); |
---|
| 70 | } |
---|
| 71 | |
---|
| 72 | public Address buildAddress(ASTaddress node, DecodeMonitor monitor) throws ParseException { |
---|
| 73 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 74 | Node n = it.next(); |
---|
| 75 | if (n instanceof ASTaddr_spec) { |
---|
| 76 | return buildAddrSpec((ASTaddr_spec) n); |
---|
| 77 | } else if (n instanceof ASTangle_addr) { |
---|
| 78 | return buildAngleAddr((ASTangle_addr) n); |
---|
| 79 | } else if (n instanceof ASTphrase) { |
---|
| 80 | String name = buildString((ASTphrase) n, false); |
---|
| 81 | Node n2 = it.next(); |
---|
| 82 | if (n2 instanceof ASTgroup_body) { |
---|
| 83 | return new Group(name, buildGroupBody((ASTgroup_body) n2, monitor)); |
---|
| 84 | } else if (n2 instanceof ASTangle_addr) { |
---|
| 85 | try { |
---|
| 86 | name = DecoderUtil.decodeEncodedWords(name, monitor); |
---|
| 87 | } catch (IllegalArgumentException e) { |
---|
| 88 | throw new ParseException(e.getMessage()); |
---|
| 89 | } |
---|
| 90 | Mailbox mb = buildAngleAddr((ASTangle_addr) n2); |
---|
| 91 | return new Mailbox(name, mb.getRoute(), mb.getLocalPart(), |
---|
| 92 | mb.getDomain()); |
---|
| 93 | } else { |
---|
| 94 | throw new ParseException(); |
---|
| 95 | } |
---|
| 96 | } else { |
---|
| 97 | throw new ParseException(); |
---|
| 98 | } |
---|
| 99 | } |
---|
| 100 | |
---|
| 101 | private MailboxList buildGroupBody(ASTgroup_body node, DecodeMonitor monitor) throws ParseException { |
---|
| 102 | List<Mailbox> results = new ArrayList<Mailbox>(); |
---|
| 103 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 104 | while (it.hasNext()) { |
---|
| 105 | Node n = it.next(); |
---|
| 106 | if (n instanceof ASTmailbox) |
---|
| 107 | results.add(buildMailbox((ASTmailbox) n, monitor)); |
---|
| 108 | else |
---|
| 109 | throw new ParseException(); |
---|
| 110 | } |
---|
| 111 | return new MailboxList(results, true); |
---|
| 112 | } |
---|
| 113 | |
---|
| 114 | public Mailbox buildMailbox(ASTmailbox node, DecodeMonitor monitor) throws ParseException { |
---|
| 115 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 116 | Node n = it.next(); |
---|
| 117 | if (n instanceof ASTaddr_spec) { |
---|
| 118 | return buildAddrSpec((ASTaddr_spec) n); |
---|
| 119 | } else if (n instanceof ASTangle_addr) { |
---|
| 120 | return buildAngleAddr((ASTangle_addr) n); |
---|
| 121 | } else if (n instanceof ASTname_addr) { |
---|
| 122 | return buildNameAddr((ASTname_addr) n, monitor); |
---|
| 123 | } else { |
---|
| 124 | throw new ParseException(); |
---|
| 125 | } |
---|
| 126 | } |
---|
| 127 | |
---|
| 128 | private Mailbox buildNameAddr(ASTname_addr node, DecodeMonitor monitor) throws ParseException { |
---|
| 129 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 130 | Node n = it.next(); |
---|
| 131 | String name; |
---|
| 132 | if (n instanceof ASTphrase) { |
---|
| 133 | name = buildString((ASTphrase) n, false); |
---|
| 134 | } else { |
---|
| 135 | throw new ParseException(); |
---|
| 136 | } |
---|
| 137 | |
---|
| 138 | n = it.next(); |
---|
| 139 | if (n instanceof ASTangle_addr) { |
---|
| 140 | try { |
---|
| 141 | name = DecoderUtil.decodeEncodedWords(name, monitor); |
---|
| 142 | } catch (IllegalArgumentException e) { |
---|
| 143 | throw new ParseException(e.getMessage()); |
---|
| 144 | } |
---|
| 145 | Mailbox mb = buildAngleAddr((ASTangle_addr) n); |
---|
| 146 | return new Mailbox(name, mb.getRoute(), mb.getLocalPart(), |
---|
| 147 | mb.getDomain()); |
---|
| 148 | } else { |
---|
| 149 | throw new ParseException(); |
---|
| 150 | } |
---|
| 151 | } |
---|
| 152 | |
---|
| 153 | private Mailbox buildAngleAddr(ASTangle_addr node) throws ParseException { |
---|
| 154 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 155 | DomainList route = null; |
---|
| 156 | Node n = it.next(); |
---|
| 157 | if (n instanceof ASTroute) { |
---|
| 158 | route = buildRoute((ASTroute) n); |
---|
| 159 | n = it.next(); |
---|
| 160 | } else if (n instanceof ASTaddr_spec) { |
---|
| 161 | // do nothing |
---|
| 162 | } |
---|
| 163 | else |
---|
| 164 | throw new ParseException(); |
---|
| 165 | |
---|
| 166 | if (n instanceof ASTaddr_spec) |
---|
| 167 | return buildAddrSpec(route, (ASTaddr_spec) n); |
---|
| 168 | else |
---|
| 169 | throw new ParseException(); |
---|
| 170 | } |
---|
| 171 | |
---|
| 172 | private DomainList buildRoute(ASTroute node) throws ParseException { |
---|
| 173 | List<String> results = new ArrayList<String>(node.jjtGetNumChildren()); |
---|
| 174 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 175 | while (it.hasNext()) { |
---|
| 176 | Node n = it.next(); |
---|
| 177 | if (n instanceof ASTdomain) |
---|
| 178 | results.add(buildString((ASTdomain) n, true)); |
---|
| 179 | else |
---|
| 180 | throw new ParseException(); |
---|
| 181 | } |
---|
| 182 | return new DomainList(results, true); |
---|
| 183 | } |
---|
| 184 | |
---|
| 185 | private Mailbox buildAddrSpec(ASTaddr_spec node) { |
---|
| 186 | return buildAddrSpec(null, node); |
---|
| 187 | } |
---|
| 188 | |
---|
| 189 | private Mailbox buildAddrSpec(DomainList route, ASTaddr_spec node) { |
---|
| 190 | ChildNodeIterator it = new ChildNodeIterator(node); |
---|
| 191 | String localPart = buildString((ASTlocal_part) it.next(), true); |
---|
| 192 | String domain = buildString((ASTdomain) it.next(), true); |
---|
| 193 | return new Mailbox(route, localPart, domain); |
---|
| 194 | } |
---|
| 195 | |
---|
| 196 | private String buildString(SimpleNode node, boolean stripSpaces) { |
---|
| 197 | Token head = node.firstToken; |
---|
| 198 | Token tail = node.lastToken; |
---|
| 199 | StringBuilder out = new StringBuilder(); |
---|
| 200 | |
---|
| 201 | while (head != tail) { |
---|
| 202 | out.append(head.image); |
---|
| 203 | head = head.next; |
---|
| 204 | if (!stripSpaces) |
---|
| 205 | addSpecials(out, head.specialToken); |
---|
| 206 | } |
---|
| 207 | out.append(tail.image); |
---|
| 208 | |
---|
| 209 | return out.toString(); |
---|
| 210 | } |
---|
| 211 | |
---|
| 212 | private void addSpecials(StringBuilder out, Token specialToken) { |
---|
| 213 | if (specialToken != null) { |
---|
| 214 | addSpecials(out, specialToken.specialToken); |
---|
| 215 | out.append(specialToken.image); |
---|
| 216 | } |
---|
| 217 | } |
---|
| 218 | |
---|
| 219 | private static class ChildNodeIterator implements Iterator<Node> { |
---|
| 220 | |
---|
| 221 | private SimpleNode simpleNode; |
---|
| 222 | private int index; |
---|
| 223 | private int len; |
---|
| 224 | |
---|
| 225 | public ChildNodeIterator(SimpleNode simpleNode) { |
---|
| 226 | this.simpleNode = simpleNode; |
---|
| 227 | this.len = simpleNode.jjtGetNumChildren(); |
---|
| 228 | this.index = 0; |
---|
| 229 | } |
---|
| 230 | |
---|
| 231 | public void remove() { |
---|
| 232 | throw new UnsupportedOperationException(); |
---|
| 233 | } |
---|
| 234 | |
---|
| 235 | public boolean hasNext() { |
---|
| 236 | return index < len; |
---|
| 237 | } |
---|
| 238 | |
---|
| 239 | public Node next() { |
---|
| 240 | return simpleNode.jjtGetChild(index++); |
---|
| 241 | } |
---|
| 242 | |
---|
| 243 | } |
---|
| 244 | } |
---|