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 String[] s = who.children();
71 for(int i=0; i<s.length; i++) {
72 v.addElement(new Group(prefix + s[i], true, 0, 0, 0)); // FIXME numbers
73 Group[] g2 = list(who.slash(s[i], false), prefix + s[i] + ".");
74 for(int j=0; j<g2.length; j++) v.addElement(g2[j]);
76 Group[] ret = new Group[v.size()];
81 private void setgroup(String s) {
83 for(StringTokenizer st = new StringTokenizer(s, ".");
85 current = current.slash(st.nextToken(), false));
87 private Group getgroup(String s) {
89 for(StringTokenizer st = new StringTokenizer(s, "."); st.hasMoreTokens(); box = box.slash(st.nextToken(), false));
90 return new Group(s, true, 0, box.count(Query.all()), box.count(Query.all()));
93 public Group[] newgroups(Date d, String[] distributions) { /* FEATURE */ return new Group[] { }; }
94 public String[] newnews(String[] groups, Date d, String[] distributions) { /* FIXME */ return null; }
97 public static class Listener implements Worker {
99 private Connection conn;
100 private void article(String numOrMessageId, boolean head, boolean body) {
101 String s = numOrMessageId.trim();
103 if (s.startsWith("<")) a = api.article(s.substring(0, s.length() - 1), head, body);
104 else a = api.article(Integer.parseInt(s), head, body);
105 int code = (head && body) ? 220 : head ? 221 : body ? 222 : 223;
106 conn.println(code + " " + a.num + " <" + a.messageid + "> get ready for some stuff...");
107 if (head) conn.println(a.message.allHeaders);
108 if (head && body) conn.println();
109 if (body) conn.println(a.message.body);
112 public void handleRequest(Connection conn) {
114 api = new NNTP.MailboxWrapper(null); // FIXME
115 conn.setTimeout(30 * 60 * 1000);
116 conn.println("200 " + conn.vhost + " [" + NNTP.class.getName() + "]");
117 for(String line = conn.readln(); line != null; line = conn.readln()) try {
118 StringTokenizer st = new StringTokenizer(line, " ");
119 String command = st.nextToken().toUpperCase();
120 if (command.equals("ARTICLE")) { article(st.hasMoreTokens() ? st.nextToken() : null, true, true);
121 } else if (command.equals("HEAD")) { article(st.hasMoreTokens() ? st.nextToken() : null, true, false);
122 } else if (command.equals("BODY")) { article(st.hasMoreTokens() ? st.nextToken() : null, false, true);
123 } else if (command.equals("STAT")) { article(st.hasMoreTokens() ? st.nextToken() : null, false, false);
124 } else if (command.equals("HELP")) { conn.println("100 you are beyond help."); conn.println(".");
125 } else if (command.equals("SLAVE")) { conn.println("220 I don't care");
126 } else if (command.equals("LAST")) { Article a = api.last(); conn.println("223 "+a.num+" "+a.messageid+" ok");
127 } else if (command.equals("NEXT")) { Article a = api.next(); conn.println("223 "+a.num+" "+a.messageid+" ok");
128 } else if (command.equals("QUIT")) { conn.println("205 Bye."); conn.close(); return;
129 } else if (command.equals("GROUP")) {
130 Group g = api.group(st.nextToken().toLowerCase());
131 conn.println("221 " + g.count + " " + g.first + " " + g.last + " " + g.name);
132 } else if (command.equals("NEWGROUPS") || command.equals("NEWNEWS")) {
133 String groups = command.equals("NEWNEWS") ? st.nextToken() : null;
134 String datetime = st.nextToken() + " " + st.nextToken();
135 String gmt = st.nextToken();
136 String distributions = gmt.equals("GMT") ? (st.hasMoreTokens() ? st.nextToken() : null) : gmt;
137 while(st.hasMoreTokens()) distributions += " " + st.nextToken();
138 // FIXME deal with GMT
141 d = new SimpleDateFormat("YYMMDD HHMMSS").parse(gmt);
142 } catch (ParseException pe) {
145 distributions = distributions.trim();
146 if (distributions.startsWith("<")) distributions = distributions.substring(1, distributions.length() - 1);
148 st = new StringTokenizer(distributions, ",");
149 String[] dists = new String[st.countTokens()];
150 for(int i=0; st.hasMoreTokens(); i++) dists[i] = st.nextToken();
152 if (command.equals("NEWGROUPS")) {
153 Group[] g = api.newgroups(d, dists);
154 conn.println("231 list of groups follows");
155 for(int i=0; i<g.length; i++)
156 conn.println(g[i].name + " " + g[i].last + " " + g[i].first + " " + (g[i].post ? "y" : "n"));
159 st = new StringTokenizer(groups, ",");
160 String[] g = new String[st.countTokens()];
161 for(int i=0; st.hasMoreTokens(); i++) g[i] = st.nextToken();
162 String[] a = api.newnews(g, d, dists);
163 conn.println("230 list of article messageids follows");
164 for(int i=0; i<a.length; i++) conn.println(a[i]);
168 } else if (command.equals("POST")) {
171 boolean postok = api.post();
173 conn.println("440 no posting allowed");
176 conn.println("340 send the article");
177 // FIME read the article here
178 conn.println("240 article posted ok");
181 } else if (command.equals("LIST")) {
182 Group[] g = api.list();
183 conn.println("215 list of groups follows");
184 for(int i=0; i<g.length; i++)
185 conn.println(g[i].name + " " + g[i].last + " " + g[i].first + " " + (g[i].post ? "y" : "n"));
188 } else if (command.equals("IHAVE")) {
189 boolean want = api.ihave(st.nextToken());
191 conn.println("435 No thanks");
193 conn.println("335 Proceed");
194 // FIXME read article here
195 conn.println("235 Got it");
198 } catch (No n) { conn.println(n.code + " " + n.getMessage());
199 } catch (Bad b) { conn.println(b.code + " " + b.getMessage()); Log.warn(this, b); }