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psyced/world/net/place/threads.c
2010-02-23 21:00:50 +01:00

707 lines
20 KiB
C

// $Id: threads.c,v 1.41 2008/01/05 12:42:17 lynx Exp $ // vim:syntax=lpc
//
#include <net.h>
#include <person.h>
#include <status.h>
inherit NET_PATH "place/owned";
#ifndef DEFAULT_BACKLOG
# define DEFAULT_BACKLOG 5
#endif
// datenstruktur für threads?
//
// bestehende struktur ist: großes array von entries.
//
// wie wärs mit mapping mit key=threadname und value=array-of-entries
// subjects werden abgeschafft: sie sind der name des threads
// wer einen thread in seinem reply umnennen will legt in wirklichkeit
// einen neuen thread an, meinetwegen mit "was: old thread"
//
// der nachteil an solch einer struktur wäre, dass man neue comments
// in alten threads nicht so schnell findet - man ist auf die notification
// angewiesen, was andererseits die stärke von psycblogs ist.
// man könnte die notifications zudem noch in die history einspeisen..
//
// nachteile an der bestehenden struktur ist: 1. threadname in jeder
// entry, 2. threads nur mittels durchlauf des ganzen blogs darstellbar
//
// momentmal.. das was du "comments" nennst sind doch schon die threads!
protected mapping* _thread;
volatile int last_modified;
volatile string webact;
create() {
P3((">> threads:create()\n"))
::create();
unless (pointerp(_thread)) _thread = ({ });
}
_request_entries(source, mc, data, vars, b) {
int num = to_int(vars["_num"]) || DEFAULT_BACKLOG;
array(mapping) entries = ({ });
mapping entry;
for (int i = sizeof(_thread) - 1; i >= 0; i--) {
unless (entry = _thread[i]) continue;
entries =
({ ([
"_sep" : strlen(entry["thread"]) ? " - " : "",
"_thread" : entry["thread"],
"_text" : entry["text"],
"_author" : entry["author"],
"_date" : entry["date"],
"_comments": sizeof(entry["comments"]),
"_id" : i,
"_nick_place" : MYNICK,
]) }) + entries;
if (sizeof(entries) == num) break;
}
foreach(entry : entries)
sendmsg(source, "_list_thread_entry",
"#[_id] - [_author][_sep][_thread]: [_text] ([_comments])",
entry);
return 1;
}
_request_entry(source, mc, data, vars, b) {
unless (vars["_id"] && strlen(vars["_id"])) {
sendmsg(source, "_warning_usage_entry",
"Usage: /entry <id>", ([ ]));
return 1;
}
mapping entry;
int id = to_int(vars["_id"]);
if (id >= 0 && id < sizeof(_thread))
entry = _thread[id];
unless (entry) {
sendmsg(source, "_error_thread_invalid_entry",
"#[_id]: no such entry", (["_id": id]));
return 1;
}
sendmsg(source, "_list_thread_entry",
"#[_id] [_author][_sep][_thread]: [_text] ([_comments])",
([
"_sep" : strlen(entry["thread"]) ? " - " : "",
"_thread" : entry["thread"],
"_text" : entry["text"],
"_author" : entry["author"],
"_date" : entry["date"],
"_comments": sizeof(entry["comments"]),
"_id" : id,
"_nick_place" : MYNICK ]) );
if (entry["comments"]) {
foreach(mapping item : entry["comments"]) {
sendmsg(source, "_list_thread_comment",
"> [_nick]: [_text]",
([
"_nick" : item["nick"],
"_text" : item["text"],
"_date": item["date"],
"_nick_place" : MYNICK ]) );
}
}
return 1;
}
_request_thread(source, mc, data, vars, b) {
unless (vars["_id"] && strlen(vars["_id"])) {
sendmsg(source, "_warning_usage_thread",
"Usage: /thread <id> <title>", ([ ]));
return 1;
}
int id = to_int(vars["_id"]);
unless (setSubject(id, vars["_title"]))
sendmsg(source, "_error_thread_invalid_entry",
"#[_id]: no such entry", (["_id": id]));
return 1;
}
_request_comment(source, mc, data, vars, b) {
unless (vars["_id"] && strlen(vars["_id"]) &&
vars["_text"] && strlen(vars["_text"])) {
sendmsg(source, "_warning_usage_reply",
"Usage: /comment <id> <text>", ([ ]));
return 1;
}
int id = to_int(vars["_id"]);
unless (addComment(vars["_text"], SNICKER, id))
sendmsg(source, "_error_thread_invalid_entry",
"#[_id]: no such entry", (["_id": id]));
return 1;
}
_request_addentry(source, mc, data, vars, b) {
unless (canPost(SNICKER)) return 0;
unless (vars["_text"] && strlen(vars["_text"])) {
sendmsg(source, "_warning_usage_addentry",
"Usage: /addentry <text>", ([ ]));
return 1;
}
addEntry(vars["_text"], SNICKER);
return 1;
}
_request_delentry(source, mc, data, vars, b) {
unless (canPost(SNICKER)) return 0;
unless (vars["_id"] && strlen(vars["_id"])) {
sendmsg(source, "_warning_usage_delentry",
"Usage: /delentry <id>", ([ ]));
return 1;
}
int id = to_int(vars["_id"]);
if (delEntry(id, source, vars)) {
sendmsg(source, "_notice_thread_entry_removed",
"Entry #[_id] has been removed.",
([ "_id" : id ]) );
} else {
sendmsg(source, "_error_thread_invalid_entry",
"#[_id]: no such entry", (["_id": id]));
}
return 1;
}
#if 0
_request_iterator(source, mc, data, vars, b) {
unless (canPost(SNICKER)) return 0;
sendmsg(source, "_notice_thread_iterator",
"[_iterator] blog entries have been requested "
"since creation.", ([
// i suppose this wasn't intentionally using
// MMP _count so i rename it to _iterator
"_iterator" : v("iterator")
]) );
return 1;
#endif
msg(source, mc, data, vars){
P3(("thread:msg(%O, %O, %O, %O)", source, mc, data, vars))
// TODO: die source muss hierbei uebereinstimmen mit dem autor
if (abbrev("_notice_authentication", mc)){
sendmsg(source, "_notice_place_blog_authentication_success", "([_entry]) has been authenticated",
([ "_entry" : "1" ]) );
return;
}
if (abbrev("error_invalid_authentication", mc)) {
sendmsg(source, "_notice_place_blog_authentication_failure", "Warning, someone pretends to blog as you", ([ ]) );
return;
}
return ::msg(source, mc, data, vars);
}
#if 0
listLastEntries(number) {
mapping* entries;
int i;
entries = _thread || ({ });
unless (sizeof(entries)) return 1;
i = v("iterator") || 0;
vSet("iterator", i + 1);
return entries[<number..];
}
#endif
#if 0
allEntries(source) {
mapping* entries;
mapping ar;
int i = 0;
entries = _thread || ({ });
unless (sizeof(entries)) return 1;
foreach (ar : entries) {
sendmsg(source, "_message_", "([_id]) \"[_topic]\", [_author]", ([ // ??
"_topic" : ar["topic"],
"_text" : ar["text"],
"_author" : ar["author"],
"_date" : ar["date"],
"_id" : i++,
"_nick_place" : MYNICK ]) );
}
return 1;
}
#endif
#if 0
addForum() {
// suggested protocol message for the buha forum
// (creation of a new thread)
:_target psyc://psyced.org/@buha
:_encoding utf-8
:_nick_forum morpheus
:_category Test-Forum
:_thread Test-Thread_
:_page_thread https://www.buha.info/board/showthread.php?t=1
_notice_thread
[_nick_forum] hat einen neuen Thread in [_category] erstellt: [_thread] ([_page_thread])
.
}
#endif
setSubject(id, thread) {
unless (_thread && id >= 0 && id <= sizeof(_thread) && _thread[id]) return 0;
_thread[id]["thread"] = thread;
save();
return 1;
}
// TODO: topic uebergeben
addEntry(text, unick, thread) {
int id = sizeof(_thread);
mapping newentry = ([
"id": id,
"text": text,
"author": unick,
"date": time(),
"thread": thread || "",
]);
_thread += ({ newentry });
save();
castmsg(ME, "_notice_thread_entry",
thread ?
"[_nick] adds an entry in [_nick_place] (#[_id]): \"[_thread]\":\n[_entry]" :
"[_nick] adds an entry in [_nick_place] (#[_id]):\n[_entry]",
([
"_entry": text,
"_id": id,
"_thread": thread,
"_nick": unick,
]));
return 1;
}
addComment(text, unick, id) {
mapping entry;
unless (_thread && id >= 0 && id <= sizeof(_thread) && _thread[id]) return 0;
entry = _thread[id];
unless (entry["comments"]) {
entry["comments"] = ({ });
}
int date = time();
entry["comments"] += ({ (["text" : text, "nick" : unick, "date": date ]) });
// vSet("entries", entries);
save();
castmsg(ME, "_notice_thread_comment",
entry["thread"] && strlen(entry["thread"]) ?
"[_nick] adds a comment to \"[_thread]\" (entry #[_id]) of [_nick_place]:\n[_comment]" :
"[_nick] adds a comment to entry #[_id] of [_nick_place]:\n[_comment]",
([
"_entry" : entry["text"],
"_id" : id,
"_thread" : entry["thread"],
"_comment" : text,
"_nick" : unick,
"_date": date,
]));
return 1;
}
delEntry(int id, source, vars) {
unless (_thread && id >= 0 && id <= sizeof(_thread) && _thread[id]) return 0;
array(string) entries, authors, a;
string unick;
if (canPost(unick = lower_case(SNICKER))) {
unless (lower_case(_thread[id]["author"]) == unick) return 0;
}
//_thread = _thread[0..id-1] + _thread[id+1..];
// set to 0 instead so entry ids won't change
_thread[id] = 0;
save();
return 1;
}
htget(prot, query, headers, qs, data) {
mapping entrymap;
mixed target;
string nick;
int i;
int a;
mapping* entries;
int num_entries = query["last"] ? to_int(query["last"]) : DEFAULT_BACKLOG;
unless (webact) webact = PLACE_PATH + MYLOWERNICK;
// shouldnt it be "html" here?
sTextPath(query["layout"] || MYNICK, query["lang"], "ht");
// Kommentare anzeigen
if (query["comments"]) {
htok(prot);
// kommentare + urspruengliche Nachricht anzeigen
displayHeader();
displayComments(_thread[to_int(query["comments"])]);
// eingabeformular ohne betreff
write("<form action='" + webact + "' method='GET'>\n"
"<input type='hidden' name='request' value='post'>\n"
"PSYC Uni: <input type='text' name='uni'><br>\n"
"<input type='hidden' name='reply' value='" + query["comments"] +"'>\n"
"<textarea name='text' rows='14' cols='80'>Enter your text here</textarea><br>\n"
"<input type='submit' value='submit'>\n"
"</form>\n");
write("<br><hr><br>");
logView(a < 24 ? a : 12, "html", 15);
displayFooter();
return 1;
}
// formularbehandlung
if (query["request"] == "post" && query["uni"]) {
htok(prot);
/*
sendmsg uni -> _request_authentication mit thread und text drin
dann auf die antwort warten die nen vars mapping mit thread + text hat wieder
*/
if (nick = legal_name(target = query["uni"])) {
target = summon_person(nick);
nick = target->qNick();
} else {
nick = target;
// write("Hello " + query["uni"] + "<br>\n");
// write("Remote auth doesn't work yet. TODO!!!\n");
// return 1;
}
#ifdef OWNED
if (canPost(nick)) {
#endif
#if 0
sendmsg(target, "_request_authentication", "please auth me!",
(["_host_IP" : query_ip_number(),
"_blog_thread" : query["thread"],
"_blog_text" : query["text"] ]));
write("your submit is avaiting authentication by " + query["uni"] + "<br>\n");
#endif // 0
if (target->checkAuthentication(ME, ([ "_host_IP" : query_ip_number() ]) ) > 0) {
// check ob reply auf irgendwas ist...
if (query["reply"]) {
addComment(query["text"], query["uni"], to_int(query["reply"]));
} else {
addEntry(query["text"], query["uni"], query["thread"]);
}
write("authentication successful!\n");
} else {
write("not authenticated!\n");
}
#ifdef OWNED
} else {
write("You are not owner or aide of this place.\n");
}
#endif
return 1;
}
// neuen Eintrag verfassen
if (query["request"] == "form") {
htok(prot);
displayHeader();
write("<form action='" + webact + "' method='GET'>\n"
"<input type='hidden' name='request' value='post'>\n"
"PSYC Identity:<br><input type='text' name='uni' size=60><br>\n"
"Thread:<br><input type='text' name='thread' size=60><br>\n"
"Text:<br>\n<textarea name='text' rows='14' cols='64'></textarea><br>\n"
"<input type='submit' value='CREATE MESSAGE'>\n"
"</form>\n");
displayFooter();
return 1;
}
::htget(prot, query, headers, qs, data, 1); // no processing, just info
// javascript-export
if (query["export"] == "javascript") {
// check If-Modified-Since header
htok3(prot, "application/x-javascript", "Cache-Control: no-cache\n");
jscriptExport(num_entries);
} else if (query["export"] == "rss" || query["export"] == "rdf") {
// export als RSS
// scheinbar gibt es ein limit von 15 items / channel
// htquote auch hier anwenden
// check If-Modified-Since header
htok3(prot, "text/xml", "");
rssExport(num_entries);
} else {
// normaler Export
P2(("all entries: %O\n", _thread))
htok3(prot, "text/html", "Cache-Control: no-cache\n");
displayHeader();
// display the blog
displayMain(num_entries);
// display the chatlog
logView(a < 24 ? a : 12, "html", 15);
displayFooter();
}
return 1;
}
rssExport(last) {
int i;
int len;
len = sizeof(_thread);
if (last > len) last = len;
write("<?xml version=\"1.0\" encoding=\"" SYSTEM_CHARSET "\" ?>\n"
"<rdf:RDF\n"
"xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n"
"xmlns=\"http://purl.org/rss/1.0/\">\n\n"
"<channel>\n"
"\t<title>PSYC - Protocol for Synchronous Conferencing</title>\n"
"\t<link>http://www.psyc.eu</link>\n"
"\t<description>News about the PSYC project</description>\n"
"</channel>\n");
for (i = len - last; i < len; i++) {
write("\n<item>\n"
"\t<title>"+ _thread[i]["thread"] +"</title>\n"
"\t<link>http://" + SERVER_HOST + ":33333" + webact + "?comments=" + i + "</link>\n"
"\t<description>" + _thread[i]["text"] + "</description>\n"
"\t<dc:date>" + isotime(ctime(_thread[i]["date"]), 1) + "</dc:date>\n"
"\t<dc:creator>" + _thread[i]["author"] + "</dc:creator>\n");
write("</item>\n");
}
write("</rdf:RDF>\n");
}
jscriptExport(last) {
mapping item;
string buf = "";
// htok3(prot, "application/x-javascript", "Cache-Control: no-cache\n");
write("function Entry(thread, author, date, text) {\n"
"\tthis.thread = thread;\n"
"\tthis.author = author;\n"
"\tthis.date = date;\n"
"\tthis.text = text;\n"
"}\n\n"
"document.blogentries = new Array(\n");
foreach (item : _thread[<last..]) {
if (item) buf += "new Entry(\"" + item["thread"] + "\", \""
+ item["author"] + "\", \""
+ isotime(ctime(item["date"]), 1) + "\", \""
+ item["text"] + "\"),\n";
}
buf = buf[..<3] + ");";
write(buf);
}
#if 0
displayMain(last) {
int i;
int len;
len = sizeof(_thread);
if (last > len) last = len;
P2(("len %d, last %d\n", len, last))
for (i = len - last; i < len; i++) {
write("<table><tr><td class='blogthread'>" + _thread[i]["thread"]
+ "</td>"
"<td class='blogauthor'>" + _thread[i]["author"] + "</td>"
"<td class='blogdate'>" + isotime(ctime(_thread[i]["date"]), 1) + "</td></tr>"
"<tr><td class='blogtext' colspan=3>" + _thread[i]["text"]
+ "</td></tr>"
"<tr><td colspan=3 align='right'>");
write("<a href='" + webact + "?comments=" + i + "'>there are " + sizeof(_thread[i]["comments"]) + " comments</a>");
write("</td></tr></table>\n");
}
}
#endif
htmlEntries(array(mapping) entries, int js, string chan, string submit) {
P3((">> threads:htmlentries(%O, %O, %O, %O)\n", entries, js, chan, submit))
string t, ht = "";
string id_prefix = chan ? chan + "-" : "";
if (js) ht +=
"<script type='text/javascript'>\n"
"function toggle(e) { e = document.getElementById(e); e.className = e.className.match('hidden') ? e.className.replace(/ *hidden/, '') : e.className + ' hidden'; }\n"
"</script>\n";
foreach (mapping item : entries) {
P3((">>> item: %O\n", item))
unless (item) continue;
t = htquote(item["text"]);
t = replace(t, "\n", "<br>\n");
t = replace(t, "<", "&lt;");
t = replace(t, ">", "&gt;");
string c = "";
if (item["comments"])
foreach(mapping comment : item["comments"])
c += "<div class='comment' title='" + isotime(ctime(comment["date"]), 1) + "'><span class='comment-author'>" + comment["nick"] + "</span>: <span class='comment-text'>" + comment["text"] + "</span></div>\n";
ht +=
"<div class='entry'>\n"
"<div class='title'>\n"
"<span class='id'>#" + item["id"] + "</span> - \n"
"<span class='author'>" + item["author"] + "</span>\n"
+ (item["thread"] && strlen(item["thread"]) ? " - " : "") +
"<span class='subject'>" + htquote(item["thread"]) + "</span>\n"
"</div>\n"
"<div class='body'>\n"
"<div class='text'>" + t + "</div>\n"
"<div id='comments-" + id_prefix + item["id"] + "' class='comments hidden'>" + c +
(submit && strlen(submit) ?
"<div class='comment-submit'>"
"<textarea autocomplete='off'></textarea>"
//FIXME: cmd is executed twice, because after a set-cookie it's parsed again
"<input type='button' value='Comment' onclick=\"cmd('comment " + item["id"] + " '+ this.previousSibling.value, '" + submit + "')\">"
"</div>" : "") +
"</div>\n"
"</div>\n"
"<div class='footer'>\n"
"<span class='date'>" + isotime(ctime(item["date"]), 1) + "</span>\n"
"<span class='comments-link'>"
"<a onclick=\"toggle('comments-" + id_prefix + item["id"] + "')\">" + sizeof(item["comments"]) + " comments</a>"
"</span>\n"
"</div>\n"
"</div>\n";
}
P3((">>> ht: %O\n", ht))
return "<div class='threads'>" + ht + "</div>";
}
htMain(int last) {
return htmlEntries(entries(last), 1);
}
entries(int last) {
array(mapping) entries = ({ });
int i, n = 0;
for (i = sizeof(_thread) - 1; i >= 0; i--) {
P3((">>> _thread[%O]: %O\n", i, _thread[i]))
unless (_thread[i]) continue;
entries += ({ _thread[i] });
if (++n >= last) break;
}
return entries;
}
jsonEntries(int last) {
return make_json(entries(last));
}
htComments(entry) {
mapping item;
string ht = "";
write("<b>" + entry["author"] + "</b>: " + entry["text"] + "<br><br>\n");
if (entry["comments"]) {
foreach(item : entry["comments"]) {
ht += "<b>" + item["nick"] + "</b>: " + item["text"] + "<br>\n";
}
} else {
ht += "no comments...<br>\n";
}
return ht;
}
displayMain(last) {
write(htMain(last));
}
displayComments(entry) {
write(htComments(entry));
}
nntpget(cmd, args) {
mapping item;
int i;
P2(("calling nntpget %s with %O\n", cmd, args))
switch(cmd) {
case "LIST":
write(MYNICK + " 0 1 n\n");
break;
case "ARTICLE":
i = to_int(args) - 1;
P2(("i is: %d\n", i))
P2(("entries: %O\n", _thread))
unless (_thread && i >= 0 && i <= sizeof(_thread) && _thread[i]) break;
item = _thread[i];
write(S("220 %d <%s%d@%s> article\n",
i + 1, MYNICK, i + 1, SERVER_HOST));
write(S("From: %s\n", item["author"]));
write(S("Newsgroups: %s\n", MYNICK));
write(S("Subject: %s\n", item["thread"]));
write(S("Date: %s\n", isotime(ctime(item["date"]), 1)));
write(S("Xref: %s %s:%d\n", SERVER_HOST, MYNICK, i + 1));
write(S("Message-ID: <%s$%d@%s>\n", MYNICK, i+1, SERVER_HOST));
write("\n");
write(item["text"]);
write("\n.\n");
break;
case "GROUP":
write(S("211 %d 1 %d %s\n", sizeof(_thread),
sizeof(_thread), MYNICK));
break;
case "XOVER":
for (i = 0; i < sizeof(_thread); i++) {
unless(item = _thread[i]) continue;
P2(("item: %O\n", item))
write(S("%d\t%s\t%s\t%s <%s%d@%s>\t1609\t22\tXref: news.t-online.com\t%s:%d\n",
i+1, item["thread"],
item["author"], isotime(ctime(item["date"]), 1),
MYNICK, i+1,
SERVER_HOST, MYNICK, i+1));
}
break;
default:
P2(("unimplemented nntp command: %s\n", cmd))
}
}
#ifndef STYLESHEET
# define STYLESHEET (v("_uniform_style") || "/static/examine.css")
#endif
// wir können zwei strategien fahren.. die technisch einfachere ist es
// die reihenfolge der elemente festzulegen und für jedes ein w(_HTML_xy
// auszuspucken. flexibler wär's stattdessen wenn jede seite ein einziges
// w(_PAGES_xy ausgeben würde in dem es per [_HTML_list_threads] oder
// ähnlichem die blog-elemente per psyctext-vars übergibt ... dann kann
// es immernoch per {_HTML_head_threads} header und footer einheitlich
// halten. womöglich kann man auch nachträglich plan A in plan B
// umwandeln..... hmmm -lynX
//
displayHeader() {
w("_HTML_head_threads",
"<html><head><link rel='stylesheet' type='text/css' href='"+
STYLESHEET +"'></head>\n"+
"<body class='threads'>\n\n");
}
displayFooter() {
w("_HTML_tail_threads", "</body></html>");
}
canPost(snicker) {
return qAide(snicker);
}
mayLog(mc) {
return abbrev("_notice_thread", mc) || abbrev("_message", mc);
}
numEntries() {
return sizeof(_thread);
}