summaryrefslogtreecommitdiff
path: root/src/cull_list.cpp
blob: 1acdd4517ee0c8c80e96f1ab76e7087d0362a612 (plain)
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
/*       +------------------------------------+
 *       | Inspire Internet Relay Chat Daemon |
 *       +------------------------------------+
 *
 *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
 *                       E-mail:
 *                <brain@chatspike.net>
 *                <Craig@chatspike.net>
 *
 * Written by Craig Edwards, Craig McLure, and others.
 * This program is free but copyrighted software; see
 *            the file COPYING for details.
 *
 * ---------------------------------------------------
 */

using namespace std;

#include "inspircd_config.h"
#include "inspircd.h"
#include <string>
#include <map>
#include <sstream>
#include <vector>
#include <deque>
#include "users.h"
#include "ctables.h"
#include "globals.h"
#include "modules.h"
#include "dynamic.h"
#include "wildcard.h"
#include "message.h"
#include "commands.h"
#include "xline.h"
#include "inspstring.h"
#include "inspircd.h"
#include "helperfuncs.h"
#include "hashcomp.h"
#include "typedefs.h"
#include "cull_list.h"

extern InspIRCd* ServerInstance;
extern user_hash clientlist;

/*
 * In current implementation of CullList, this isn't used. It did odd things with a lot of sockets.
 */
bool CullList::IsValid(userrec* user)
{
	time_t esignon = 0;
	std::map<userrec*,time_t>::iterator es = exempt.find(user);
	if (es != exempt.end())
		esignon = es->second;

	for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
	{
		/*
		 * BUGFIX
		 *
		 * Because there is an undetermined period of time between a user existing,
		 * and this function being called, we have to check for the following condition:
		 *
		 * Between CullList::AddItem(u) being called, and CullList::IsValid(u) being called,
		 * the user with the pointer u has quit, but only to be REPLACED WITH A NEW USER WHO
		 * BECAUSE OF ALLOCATION RULES, HAS THE SAME MEMORY ADDRESS! To prevent this, we
		 * cross reference each pointer to the user's signon time, and if the signon times
		 * do not match, we return false here to indicate this user is NOT valid as it
		 * seems to differ from the pointer snapshot we got a few seconds earlier. Should
		 * prevent a few random crashes during netsplits.
		 */
		if (user == u->second)
			return (u->second->signon == esignon);
	}
	return false;
}

CullItem::CullItem(userrec* u, std::string &r)
{
	this->user = u;
	this->reason = r;
}

CullItem::CullItem(userrec* u, const char* r)
{
	this->user = u;
	this->reason = r;
}

CullItem::~CullItem()
{
}

userrec* CullItem::GetUser()
{
	return this->user;
}

std::string& CullItem::GetReason()
{
	return this->reason;
}

CullList::CullList()
{
	list.clear();
	exempt.clear();
}

void CullList::AddItem(userrec* user, std::string &reason)
{
	if (exempt.find(user) == exempt.end())
	{
		CullItem item(user,reason);
		list.push_back(item);
		exempt[user] = user->signon;
	}
}

void CullList::AddItem(userrec* user, const char* reason)
{
	if (exempt.find(user) == exempt.end())
	{
		CullItem item(user,reason);
		list.push_back(item);
		exempt[user] = user->signon;
	}
}

int CullList::Apply()
{
	int n = list.size();
	while (list.size())
	{
		std::vector<CullItem>::iterator a = list.begin();

		kill_link(a->GetUser(), a->GetReason().c_str());
		list.erase(list.begin());
	}
	return n;
}