1 package org.ibex.mail.protocol;
2 import org.ibex.util.*;
4 import org.ibex.mail.*;
5 import org.ibex.mail.target.*;
6 import org.ibex.jinetd.*;
12 /** NNTP send/recieve */
15 // FIXME: command lines limited to 512 chars
17 public static class No extends RuntimeException { int code = 0; } // 4xx response codes
18 public static class Bad extends RuntimeException { int code = 0; } // 5xx response codes
20 public static class Group {
21 public Group(String n, boolean p, int f, int l, int c) { this.name=n;this.post=p;this.first=f;this.last=l;this.count=c;}
22 public final String name;
23 public final boolean post;
24 public final int first;
25 public final int last;
26 public final int count;
29 public static class Article {
30 public Article(String messageid, int num, Message message) { this.message=message;this.messageid=messageid;this.num=num;}
31 public final String messageid;
33 public final Message message;
36 public static interface Server {
37 public Group group(String s);
38 public boolean ihave(String messageid);
39 public Article next();
40 public Article last();
41 public boolean post(Message m);
42 public Article article(String messageid, boolean head, boolean body);
43 public Article article(int messagenum, boolean head, boolean body);
44 public Group[] list();
45 public Group[] newgroups(Date d, String[] distributions);
46 public String[] newnews(String[] groups, Date d, String[] distributions);
49 public static class MailboxWrapper implements Server {
50 private final Mailbox root;
51 private Mailbox current;
53 public MailboxWrapper(Mailbox root) { this.root = root; }
54 public Group group(String s) { ptr = 0; setgroup(s); return getgroup(s); }
55 public boolean ihave(String messageid) { /* FEATURE */ return false; }
56 public boolean post(Message m) { /* FEATURE */ return false; }
57 public Article next() { return article(ptr++, false, false); }
58 public Article last() { return article(ptr--, false, false); }
59 public Article article(String i, boolean h, boolean b) { return article(Query.header("message-id",i),h,b); }
60 public Article article(int n, boolean h, boolean b) { ptr = n; return article(Query.messagenum(n,n),h,b); }
61 private Article article(Query q, boolean head, boolean body) {
62 Mailbox.Iterator it = current.iterator(q);
63 if (!it.next()) return null;
64 Message m = body ? it.cur() : it.head();
65 return new Article(m.messageid, it.num(), m);
67 public Group[] list() { return list(root, ""); }
68 private Group[] list(Mailbox who, String prefix) {
70 if (who == null) who = root;
71 String[] s = who.children();
72 for(int i=0; i<s.length; i++) {
73 v.addElement(new Group(prefix + s[i], true, 0, 0, 0)); // FIXME numbers
74 Group[] g2 = list(who.slash(s[i], false), prefix + s[i] + ".");
75 for(int j=0; j<g2.length; j++) v.addElement(g2[j]);
77 Group[] ret = new Group[v.size()];
82 private void setgroup(String s) {
84 for(StringTokenizer st = new StringTokenizer(s, ".");
86 current = current.slash(st.nextToken(), false));
88 private Group getgroup(String s) {
90 for(StringTokenizer st = new StringTokenizer(s, "."); st.hasMoreTokens(); box = box.slash(st.nextToken(), false));
91 return new Group(s, true, 0, box.count(Query.all()), box.count(Query.all()));
94 public Group[] newgroups(Date d, String[] distributions) { /* FEATURE */ return new Group[] { }; }
95 public String[] newnews(String[] groups, Date d, String[] distributions) { /* FIXME */ return null; }
98 public static class Listener implements Worker {
99 private Server api = null;
101 private Connection conn;
102 public Listener(Login l) { this.login = l; }
104 private void println(String s) { Log.warn("[nntp-write]", s); conn.println(s); }
105 private void println() { Log.warn("[nntp-write]", ""); conn.println(); }
107 private void article(String numOrMessageId, boolean head, boolean body) {
108 String s = numOrMessageId.trim();
110 if (s.startsWith("<")) a = api.article(s.substring(0, s.length() - 1), head, body);
111 else a = api.article(Integer.parseInt(s), head, body);
113 println("423 No such article.");
116 int code = (head && body) ? 220 : head ? 221 : body ? 222 : 223;
117 println(code + " " + a.num + " <" + a.messageid + "> get ready for some stuff...");
118 if (head) println(a.message.headers.raw);
119 if (head && body) println();
120 if (body) println(a.message.body);
123 public void handleRequest(Connection conn) {
125 conn.setTimeout(30 * 60 * 1000);
126 println("200 " + conn.vhost + " [" + NNTP.class.getName() + "]");
129 Account account = login.anonymous();
130 this.api = account == null ? null : new MailboxWrapper(account.getMailbox(NNTP.class));
131 for(String line = conn.readln(); line != null; line = conn.readln()) try {
132 Log.warn("[nntp-read]", line);
133 StringTokenizer st = new StringTokenizer(line, " ");
134 String command = st.nextToken().toUpperCase();
135 if (command.equals("AUTHINFO")) {
136 String uop = st.nextToken().toUpperCase();
137 if (uop.equals("USER")) user = st.nextToken();
138 else if (uop.equals("PASS")) pass = st.nextToken();
141 if (this.api == null) {
142 if (user == null) { println("480 Authentication required"); continue; }
143 if (pass == null) { println("381 Password required"); continue; }
144 account = login.login(user, pass);
145 if (account == null) { println("502 Invalid"); continue; }
146 this.api = new MailboxWrapper(account.getMailbox(NNTP.class));
147 println("281 Good to go");
150 if (command.equals("ARTICLE")) { article(st.hasMoreTokens() ? st.nextToken() : null, true, true);
151 } else if (command.equals("HEAD")) { article(st.hasMoreTokens() ? st.nextToken() : null, true, false);
152 } else if (command.equals("MODE")) { println("201 Hello, you can post.");
153 } else if (command.equals("BODY")) { article(st.hasMoreTokens() ? st.nextToken() : null, false, true);
154 } else if (command.equals("STAT")) { article(st.hasMoreTokens() ? st.nextToken() : null, false, false);
155 } else if (command.equals("HELP")) { println("100 you are beyond help."); println(".");
156 } else if (command.equals("SLAVE")) { println("220 I don't care");
157 } else if (command.equals("XOVER")) {
158 println("224 Overview information follows");
159 MailboxWrapper api = (MailboxWrapper)this.api;
160 String range = st.hasMoreTokens() ? st.nextToken() : (api.ptr+"-"+api.ptr);
161 int start = Integer.parseInt(range.substring(0, range.indexOf('-')));
162 int end = Integer.parseInt(range.substring(range.indexOf('-') + 1));
163 Mailbox.Iterator it = api.current.iterator(Query.messagenum(start, end));
165 Message m = it.cur();
166 println(it.num()+"\t"+m.subject+"\t"+m.from+"\t"+m.date+"\t"+m.messageid+"\t"+
167 m.headers.gets("references") + "\t" + m.size() + "\t" + m.lines);
170 } else if (command.equals("LAST")) { Article a = api.last(); println("223 "+a.num+" "+a.messageid+" ok");
171 } else if (command.equals("NEXT")) { Article a = api.next(); println("223 "+a.num+" "+a.messageid+" ok");
172 } else if (command.equals("QUIT")) { println("205 Bye."); conn.close(); return;
173 } else if (command.equals("GROUP")) {
174 Group g = api.group(st.nextToken().toLowerCase());
175 println("221 " + g.count + " " + g.first + " " + g.last + " " + g.name);
176 } else if (command.equals("NEWGROUPS") || command.equals("NEWNEWS")) {
177 String groups = command.equals("NEWNEWS") ? st.nextToken() : null;
178 String datetime = st.nextToken() + " " + st.nextToken();
179 String gmt = st.nextToken();
180 String distributions = gmt.equals("GMT") ? (st.hasMoreTokens() ? st.nextToken() : null) : gmt;
181 while(st.hasMoreTokens()) distributions += " " + st.nextToken();
182 // FIXME deal with GMT
185 d = new SimpleDateFormat("YYMMDD HHMMSS").parse(gmt);
186 } catch (ParseException pe) {
189 distributions = distributions.trim();
190 if (distributions.startsWith("<")) distributions = distributions.substring(1, distributions.length() - 1);
192 st = new StringTokenizer(distributions, ",");
193 String[] dists = new String[st.countTokens()];
194 for(int i=0; st.hasMoreTokens(); i++) dists[i] = st.nextToken();
196 if (command.equals("NEWGROUPS")) {
197 Group[] g = api.newgroups(d, dists);
198 println("231 list of groups follows");
199 for(int i=0; i<g.length; i++)
200 println(g[i].name + " " + g[i].last + " " + g[i].first + " " + (g[i].post ? "y" : "n"));
203 st = new StringTokenizer(groups, ",");
204 String[] g = new String[st.countTokens()];
205 for(int i=0; st.hasMoreTokens(); i++) g[i] = st.nextToken();
206 String[] a = api.newnews(g, d, dists);
207 println("230 list of article messageids follows");
208 for(int i=0; i<a.length; i++) println(a[i]);
212 } else if (command.equals("POST")) {
215 boolean postok = api.post();
217 println("440 no posting allowed");
220 println("340 send the article");
221 // FIME read the article here
222 println("240 article posted ok");
225 } else if (command.equals("LIST")) {
226 Group[] g = api.list();
227 println("215 list of groups follows");
228 for(int i=0; i<g.length; i++)
229 println(g[i].name + " " + g[i].last + " " + g[i].first + " " + (g[i].post ? "y" : "n"));
232 } else if (command.equals("IHAVE")) {
233 boolean want = api.ihave(st.nextToken());
235 println("435 No thanks");
237 println("335 Proceed");
238 // FIXME read article here
239 println("235 Got it");
242 } catch (No n) { println(n.code + " " + n.getMessage());
243 } catch (Bad b) { println(b.code + " " + b.getMessage()); Log.warn(this, b); }