1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2011 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "sql.h"
/* $ModDesc: Provides channel history for a given number of lines, stored in an SQL database */
namespace m_sql_chanhistory
{
class DiscardQuery : public SQLQuery
{
public:
DiscardQuery(Module* me) : SQLQuery(me) {}
void OnResult(SQLResult& res) {}
void OnError(SQLerror& e)
{
ServerInstance->Logs->Log("m_sql_chanhistory", DEFAULT, "SQL update returned error: %s", e.str.c_str());
}
};
class ReplayQuery : public SQLQuery
{
public:
std::string cname, uid;
ReplayQuery(Module* me, Membership* memb)
: SQLQuery(me), cname(memb->chan->name), uid(memb->user->uuid)
{
}
void OnResult(SQLResult& res)
{
User* user = ServerInstance->FindUUID(uid);
Channel* chan = ServerInstance->FindChan(cname);
int rows = res.Rows();
if (!user || !chan || !rows)
return;
user->WriteServ("NOTICE %s :Replaying %d lines of pre-join history", chan->name.c_str(), rows);
SQLEntries row;
while (res.GetRow(row))
{
user->Write(row[0]);
}
}
void OnError(SQLerror& e)
{
ServerInstance->Logs->Log("m_sql_chanhistory", DEFAULT, "SQL query returned error: %s", e.str.c_str());
}
};
class HistoryMode : public ModeHandler
{
public:
LocalIntExt histID;
int maxlines;
dynamic_reference<SQLProvider> sqldb;
std::string tablename;
HistoryMode(Module* Creator) : ModeHandler(Creator, "history", 'H', PARAM_SETONLY, MODETYPE_CHANNEL),
histID(EXTENSIBLE_CHANNEL, "history-id", Creator), sqldb("SQL") { fixed_letter = false; }
std::pair<int, int> ParamParse(const std::string& parameter)
{
std::string::size_type colon = parameter.find(':');
if (colon == std::string::npos)
return std::make_pair(0,0);
int len = atoi(parameter.substr(0, colon).c_str());
int time = ServerInstance->Duration(parameter.substr(colon+1));
return std::make_pair(len,time);
}
ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
{
if (adding)
{
std::pair<int, int> rv = ParamParse(parameter);
int len = rv.first;
int time = rv.second;
if (len <= 0 || time < 0)
return MODEACTION_DENY;
if (len > maxlines && IS_LOCAL(source))
return MODEACTION_DENY;
if (parameter == channel->GetModeParameter(this))
return MODEACTION_DENY;
channel->SetModeParam(this, parameter);
}
else
{
channel->SetModeParam(this, "");
}
ParamL n;
n.push_back(tablename);
n.push_back(channel->name);
sqldb->submit(new DiscardQuery(creator), "DELETE FROM ? WHERE chan = '?'", n);
histID.set(channel, 0);
return MODEACTION_ALLOW;
}
};
class ModuleChanHistory : public Module
{
HistoryMode m;
public:
ModuleChanHistory() : m(this)
{
}
void init()
{
ServerInstance->Modules->AddService(m);
ServerInstance->Modules->AddService(m.histID);
Implementation eventlist[] = { I_OnPostJoin, I_OnUserMessage, I_OnChannelDelete };
ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
ParamL n;
n.push_back(m.tablename);
m.sqldb->submit(new DiscardQuery(this), "DELETE FROM ?", n);
}
void ReadConfig(ConfigReadStatus& status)
{
ConfigTag *tag = ServerInstance->Config->GetTag("chanhistory");
m.maxlines = tag->getInt("maxlines", 50);
m.tablename = tag->getString("table", "chanhistory");
if (m.tablename.empty())
status.ReportError(tag, "Table name cannot be empty");
std::string dbid = tag->getString("dbid");
if (dbid.empty())
m.sqldb.SetProvider("SQL");
else
m.sqldb.SetProvider("SQL/" + dbid);
if (!m.sqldb)
status.ReportError(tag, "SQL database not found!");
}
~ModuleChanHistory()
{
ServerInstance->Modes->DelMode(&m);
}
void OnUserMessage(User* user,void* dest,int target_type, const std::string &text, char status, const CUList&)
{
if (target_type == TYPE_CHANNEL && status == 0)
{
Channel* c = (Channel*)dest;
if (!c->IsModeSet(&m))
return;
char buf[MAXBUF];
snprintf(buf, MAXBUF, ":%s PRIVMSG %s :%s", user->GetFullHost().c_str(), c->name.c_str(), text.c_str());
int seq = m.histID.get(c);
m.histID.set(c, seq + 1);
ParamL n;
n.push_back(m.tablename);
n.push_back(c->name);
n.push_back(ConvToStr(seq));
n.push_back(ConvToStr(ServerInstance->Time()));
n.push_back(buf);
m.sqldb->submit(new DiscardQuery(this),
"INSERT INTO ? (chan, line, ts, text) VALUES ('?', '?', '?', '?')", n);
n.clear();
std::pair<int, int> param = m.ParamParse(c->GetModeParameter(&m));
n.push_back(m.tablename);
n.push_back(c->name);
if (param.first < seq)
n.push_back(ConvToStr(seq - param.first));
else
n.push_back("0");
n.push_back(ConvToStr(ServerInstance->Time() - param.second));
m.sqldb->submit(new DiscardQuery(this),
"DELETE FROM ? WHERE chan = '?' AND (line < ? OR ts < ?)", n);
}
}
void OnPostJoin(Membership* memb)
{
if (!memb->chan->IsModeSet(&m))
return;
std::pair<int, int> param = m.ParamParse(memb->chan->GetModeParameter(&m));
int seq = m.histID.get(memb->chan);
ParamL n;
n.push_back(m.tablename);
n.push_back(memb->chan->name);
if (param.first < seq)
n.push_back(ConvToStr(seq - param.first));
else
n.push_back("0");
n.push_back(ConvToStr(ServerInstance->Time() - param.second));
m.sqldb->submit(new ReplayQuery(this, memb),
"SELECT text FROM ? WHERE chan = '?' AND line >= ? AND ts >= ? ORDER BY line", n);
}
void OnChannelDelete(Channel* chan)
{
if (chan->IsModeSet(&m))
{
ParamL n;
n.push_back(m.tablename);
n.push_back(chan->name);
m.sqldb->submit(new DiscardQuery(this), "DELETE FROM ? WHERE chan = '?'", n);
}
}
Version GetVersion()
{
return Version("Provides channel history replayed on join", VF_VENDOR);
}
};
}
using m_sql_chanhistory::ModuleChanHistory;
MODULE_INIT(ModuleChanHistory)
|
