lbbs/src/user_priv.c

/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
 * user_priv
 *   - basic operations of user privilege
 *
 * Copyright (C) 2004-2026  Leaflet <leaflet@leafok.com>
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "bbs.h"
#include "common.h"
#include "database.h"
#include "log.h"
#include "user_priv.h"
#include <stdio.h>
#include <stdlib.h>
#include <mysql.h>

BBS_user_priv BBS_priv;

// External definitions for inline functions
extern inline int checklevel(BBS_user_priv *p_priv, int level);
extern inline int checklevel2(BBS_user_priv *p_priv, int level);
extern inline int checkpriv(BBS_user_priv *p_priv, int sid, int priv);
extern inline int is_favor(BBS_user_priv *p_priv, int sid);

inline static int search_priv(BBS_user_priv *p_priv, int sid, int *p_offset)
{
        int left = 0;
        int right = p_priv->s_count - 1;
        int mid = 0;

        while (left < right)
        {
                mid = (left + right) / 2;

                if (sid < p_priv->s_priv_list[mid].sid)
                {
                        right = mid - 1;
                }
                else if (sid > p_priv->s_priv_list[mid].sid)
                {
                        left = mid + 1;
                }
                else // if (sid == p_priv->s_priv_list[mid].sid)
                {
                        left = mid;
                        break;
                }
        }

        *p_offset = left;

        return (sid == p_priv->s_priv_list[left].sid);
}

int setpriv(BBS_user_priv *p_priv, int sid, int priv, int is_favor)
{
        int offset;
        int i;

        if (sid == 0)
        {
                p_priv->g_priv = priv;
                return 0;
        }

        if (search_priv(p_priv, sid, &offset)) // found
        {
                p_priv->s_priv_list[offset].s_priv = priv;
                p_priv->s_priv_list[offset].is_favor = is_favor;
                return 0;
        }

        // not found
        if (p_priv->s_count >= BBS_max_section)
        {
                return -1;
        }

        // move items at [left, p_priv->s_count - 1] to [left + 1, p_priv->s_count]
        for (i = p_priv->s_count - 1; i >= offset; i--)
        {
                p_priv->s_priv_list[i + 1] = p_priv->s_priv_list[i];
        }
        p_priv->s_count++;

        // insert new item at offset left
        p_priv->s_priv_list[offset].sid = sid;
        p_priv->s_priv_list[offset].s_priv = priv;
        p_priv->s_priv_list[offset].is_favor = is_favor;

        return 0;
}

int getpriv(BBS_user_priv *p_priv, int sid, int *p_is_favor)
{
        int offset;

        if (search_priv(p_priv, sid, &offset)) // found
        {
                *p_is_favor = p_priv->s_priv_list[offset].is_favor;
                return p_priv->s_priv_list[offset].s_priv;
        }

        *p_is_favor = 0;
        return (sid >= 0 ? p_priv->g_priv : S_NONE);
}

int load_priv(MYSQL *db, BBS_user_priv *p_priv, int uid)
{
        MYSQL_RES *rs;
        MYSQL_ROW row;
        char sql[SQL_BUFFER_LEN];
        int priv;
        int is_favor;

        p_priv->uid = uid;
        p_priv->level = (uid == 0 ? P_GUEST : P_USER);
        p_priv->g_priv = S_DEFAULT;
        p_priv->s_count = 0;

        if (db == NULL)
                return 1;

        // Permission
        snprintf(sql, sizeof(sql),
                         "SELECT p_post, p_msg FROM user_list WHERE UID = %d AND verified",
                         uid);
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query user_list error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get user_list data failed");
                return -1;
        }
        if ((row = mysql_fetch_row(rs)))
        {
                p_priv->g_priv |= (atoi(row[0]) ? S_POST : 0);
                p_priv->g_priv |= (atoi(row[1]) ? S_MSG : 0);
        }
        mysql_free_result(rs);

        // Admin
        snprintf(sql, sizeof(sql),
                         "SELECT major FROM admin_config WHERE UID = %d "
                         "AND enable AND (NOW() BETWEEN begin_dt AND end_dt)",
                         uid);
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query admin_config error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get admin_config data failed");
                return -1;
        }
        if ((row = mysql_fetch_row(rs)))
        {
                p_priv->level |= (atoi(row[0]) ? P_ADMIN_M : P_ADMIN_S);
                p_priv->g_priv |= (atoi(row[0]) ? S_ALL : S_ADMIN);
        }
        mysql_free_result(rs);

        // Section Master
        snprintf(sql, sizeof(sql),
                         "SELECT section_master.SID, major FROM section_master "
                         "INNER JOIN section_config ON section_master.SID = section_config.SID "
                         "WHERE UID = %d AND section_master.enable AND section_config.enable "
                         "AND (NOW() BETWEEN begin_dt AND end_dt)",
                         uid);
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query section_master error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get section_master data failed");
                return -1;
        }
        while ((row = mysql_fetch_row(rs)))
        {
                p_priv->level |= (atoi(row[1]) ? P_MAN_M : P_MAN_S);
                priv = (getpriv(p_priv, atoi(row[0]), &is_favor) | (atoi(row[1]) ? S_MAN_M : S_MAN_S));
                setpriv(p_priv, atoi(row[0]), priv, is_favor);
        }
        mysql_free_result(rs);

        // Section status
        snprintf(sql, sizeof(sql),
                         "SELECT SID, exp_get, read_user_level, write_user_level FROM section_config "
                         "INNER JOIN section_class ON section_config.CID = section_class.CID "
                         "WHERE section_config.enable AND section_class.enable "
                         "ORDER BY SID");
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query section_config error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get section_config data failed");
                return -1;
        }
        while ((row = mysql_fetch_row(rs)))
        {
                int priv = getpriv(p_priv, atoi(row[0]), &is_favor);
                if (p_priv->level < atoi(row[2]))
                {
                        priv &= (~S_LIST);
                }
                if (p_priv->level < atoi(row[3]))
                {
                        priv &= (~S_POST);
                }
                if (!atoi(row[1]))
                {
                        priv &= (~S_GETEXP);
                }
                setpriv(p_priv, atoi(row[0]), priv, is_favor);
        }
        mysql_free_result(rs);

        // Section ban
        snprintf(sql, sizeof(sql),
                         "SELECT SID FROM ban_user_list WHERE UID = %d AND enable "
                         "AND (NOW() BETWEEN ban_dt AND unban_dt)",
                         uid);
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query ban_user_list error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get ban_user_list data failed");
                return -1;
        }
        while ((row = mysql_fetch_row(rs)))
        {
                priv = getpriv(p_priv, atoi(row[0]), &is_favor) & (~S_POST);
                setpriv(p_priv, atoi(row[0]), priv, is_favor);
        }
        mysql_free_result(rs);

        // User favor section
        snprintf(sql, sizeof(sql),
                         "SELECT SID FROM section_favorite WHERE UID = %d",
                         uid);
        if (mysql_query(db, sql) != 0)
        {
                log_error("Query section_favorite error: %s", mysql_error(db));
                return -1;
        }
        if ((rs = mysql_store_result(db)) == NULL)
        {
                log_error("Get section_favorite data failed");
                return -1;
        }
        while ((row = mysql_fetch_row(rs)))
        {
                priv = getpriv(p_priv, atoi(row[0]), &is_favor);
                if (!is_favor)
                {
                        setpriv(p_priv, atoi(row[0]), priv, 1);
                        priv = getpriv(p_priv, atoi(row[0]), &is_favor);
                }
        }
        mysql_free_result(rs);

        return 0;
}
1	sysadm	1.23	/* SPDX-License-Identifier: GPL-3.0-or-later */
2			/*
3			* user_priv
4			* - basic operations of user privilege
5			*
6	sysadm	1.28	* Copyright (C) 2004-2026 Leaflet <leaflet@leafok.com>
7	sysadm	1.23	*/
8	sysadm	1.1
9	sysadm	1.25	#ifdef HAVE_CONFIG_H
10			#include "config.h"
11			#endif
12
13	sysadm	1.1	#include "bbs.h"
14	sysadm	1.2	#include "common.h"
15	sysadm	1.10	#include "database.h"
16	sysadm	1.8	#include "log.h"
17	sysadm	1.21	#include "user_priv.h"
18	sysadm	1.8	#include <stdio.h>
19	sysadm	1.15	#include <stdlib.h>
20	sysadm	1.26	#include <mysql.h>
21	sysadm	1.1
22	sysadm	1.8	BBS_user_priv BBS_priv;
23
24	sysadm	1.29	// External definitions for inline functions
25			extern inline int checklevel(BBS_user_priv *p_priv, int level);
26			extern inline int checklevel2(BBS_user_priv *p_priv, int level);
27			extern inline int checkpriv(BBS_user_priv *p_priv, int sid, int priv);
28			extern inline int is_favor(BBS_user_priv *p_priv, int sid);
29
30	sysadm	1.18	inline static int search_priv(BBS_user_priv p_priv, int sid, int p_offset)
31	sysadm	1.2	{
32	sysadm	1.16	int left = 0;
33			int right = p_priv->s_count - 1;
34	sysadm	1.17	int mid = 0;
35	sysadm	1.16
36			while (left < right)
37			{
38			mid = (left + right) / 2;
39
40	sysadm	1.22	if (sid < p_priv->s_priv_list[mid].sid)
41	sysadm	1.5	{
42	sysadm	1.22	right = mid - 1;
43	sysadm	1.5	}
44	sysadm	1.22	else if (sid > p_priv->s_priv_list[mid].sid)
45	sysadm	1.5	{
46	sysadm	1.16	left = mid + 1;
47	sysadm	1.5	}
48	sysadm	1.22	else // if (sid == p_priv->s_priv_list[mid].sid)
49			{
50			left = mid;
51			break;
52			}
53	sysadm	1.2	}
54	sysadm	1.16
55	sysadm	1.18	*p_offset = left;
56
57	sysadm	1.22	return (sid == p_priv->s_priv_list[left].sid);
58	sysadm	1.18	}
59
60			int setpriv(BBS_user_priv *p_priv, int sid, int priv, int is_favor)
61			{
62			int offset;
63			int i;
64
65			if (sid == 0)
66			{
67			p_priv->g_priv = priv;
68			return 0;
69			}
70
71	sysadm	1.23	if (search_priv(p_priv, sid, &offset)) // found
72	sysadm	1.2	{
73	sysadm	1.18	p_priv->s_priv_list[offset].s_priv = priv;
74			p_priv->s_priv_list[offset].is_favor = is_favor;
75	sysadm	1.16	return 0;
76			}
77
78			// not found
79			if (p_priv->s_count >= BBS_max_section)
80			{
81			return -1;
82			}
83
84			// move items at [left, p_priv->s_count - 1] to [left + 1, p_priv->s_count]
85	sysadm	1.18	for (i = p_priv->s_count - 1; i >= offset; i--)
86	sysadm	1.16	{
87	sysadm	1.18	p_priv->s_priv_list[i + 1] = p_priv->s_priv_list[i];
88	sysadm	1.2	}
89	sysadm	1.17	p_priv->s_count++;
90
91	sysadm	1.16	// insert new item at offset left
92	sysadm	1.18	p_priv->s_priv_list[offset].sid = sid;
93			p_priv->s_priv_list[offset].s_priv = priv;
94			p_priv->s_priv_list[offset].is_favor = is_favor;
95	sysadm	1.5
96			return 0;
97			}
98
99	sysadm	1.17	int getpriv(BBS_user_priv p_priv, int sid, int p_is_favor)
100	sysadm	1.5	{
101	sysadm	1.18	int offset;
102	sysadm	1.2
103	sysadm	1.23	if (search_priv(p_priv, sid, &offset)) // found
104	sysadm	1.17	{
105	sysadm	1.18	*p_is_favor = p_priv->s_priv_list[offset].is_favor;
106			return p_priv->s_priv_list[offset].s_priv;
107	sysadm	1.17	}
108
109	sysadm	1.18	*p_is_favor = 0;
110	sysadm	1.5	return (sid >= 0 ? p_priv->g_priv : S_NONE);
111	sysadm	1.2	}
112
113	sysadm	1.20	int load_priv(MYSQL db, BBS_user_priv p_priv, int uid)
114	sysadm	1.2	{
115	sysadm	1.5	MYSQL_RES *rs;
116			MYSQL_ROW row;
117	sysadm	1.10	char sql[SQL_BUFFER_LEN];
118	sysadm	1.17	int priv;
119			int is_favor;
120	sysadm	1.5
121			p_priv->uid = uid;
122			p_priv->level = (uid == 0 ? P_GUEST : P_USER);
123			p_priv->g_priv = S_DEFAULT;
124	sysadm	1.14	p_priv->s_count = 0;
125	sysadm	1.5
126			if (db == NULL)
127			return 1;
128
129	sysadm	1.7	// Permission
130	sysadm	1.17	snprintf(sql, sizeof(sql),
131	sysadm	1.20	"SELECT p_post, p_msg FROM user_list WHERE UID = %d AND verified",
132	sysadm	1.16	uid);
133	sysadm	1.5	if (mysql_query(db, sql) != 0)
134			{
135	sysadm	1.27	log_error("Query user_list error: %s", mysql_error(db));
136	sysadm	1.5	return -1;
137			}
138			if ((rs = mysql_store_result(db)) == NULL)
139			{
140	sysadm	1.27	log_error("Get user_list data failed");
141	sysadm	1.5	return -1;
142			}
143	sysadm	1.10	if ((row = mysql_fetch_row(rs)))
144	sysadm	1.5	{
145	sysadm	1.7	p_priv->g_priv \|= (atoi(row[0]) ? S_POST : 0);
146			p_priv->g_priv \|= (atoi(row[1]) ? S_MSG : 0);
147	sysadm	1.5	}
148			mysql_free_result(rs);
149
150	sysadm	1.7	// Admin
151	sysadm	1.17	snprintf(sql, sizeof(sql),
152	sysadm	1.20	"SELECT major FROM admin_config WHERE UID = %d "
153	sysadm	1.17	"AND enable AND (NOW() BETWEEN begin_dt AND end_dt)",
154	sysadm	1.16	uid);
155	sysadm	1.5	if (mysql_query(db, sql) != 0)
156			{
157	sysadm	1.27	log_error("Query admin_config error: %s", mysql_error(db));
158	sysadm	1.5	return -1;
159			}
160			if ((rs = mysql_store_result(db)) == NULL)
161			{
162	sysadm	1.27	log_error("Get admin_config data failed");
163	sysadm	1.5	return -1;
164			}
165	sysadm	1.10	if ((row = mysql_fetch_row(rs)))
166	sysadm	1.5	{
167	sysadm	1.9	p_priv->level \|= (atoi(row[0]) ? P_ADMIN_M : P_ADMIN_S);
168			p_priv->g_priv \|= (atoi(row[0]) ? S_ALL : S_ADMIN);
169	sysadm	1.5	}
170			mysql_free_result(rs);
171
172			// Section Master
173	sysadm	1.17	snprintf(sql, sizeof(sql),
174			"SELECT section_master.SID, major FROM section_master "
175			"INNER JOIN section_config ON section_master.SID = section_config.SID "
176	sysadm	1.20	"WHERE UID = %d AND section_master.enable AND section_config.enable "
177	sysadm	1.17	"AND (NOW() BETWEEN begin_dt AND end_dt)",
178	sysadm	1.16	uid);
179	sysadm	1.5	if (mysql_query(db, sql) != 0)
180			{
181	sysadm	1.27	log_error("Query section_master error: %s", mysql_error(db));
182	sysadm	1.5	return -1;
183			}
184			if ((rs = mysql_store_result(db)) == NULL)
185			{
186	sysadm	1.27	log_error("Get section_master data failed");
187	sysadm	1.5	return -1;
188			}
189	sysadm	1.10	while ((row = mysql_fetch_row(rs)))
190	sysadm	1.5	{
191			p_priv->level \|= (atoi(row[1]) ? P_MAN_M : P_MAN_S);
192	sysadm	1.17	priv = (getpriv(p_priv, atoi(row[0]), &is_favor) \| (atoi(row[1]) ? S_MAN_M : S_MAN_S));
193			setpriv(p_priv, atoi(row[0]), priv, is_favor);
194	sysadm	1.5	}
195			mysql_free_result(rs);
196
197			// Section status
198	sysadm	1.17	snprintf(sql, sizeof(sql),
199			"SELECT SID, exp_get, read_user_level, write_user_level FROM section_config "
200			"INNER JOIN section_class ON section_config.CID = section_class.CID "
201			"WHERE section_config.enable AND section_class.enable "
202			"ORDER BY SID");
203	sysadm	1.5	if (mysql_query(db, sql) != 0)
204			{
205	sysadm	1.27	log_error("Query section_config error: %s", mysql_error(db));
206	sysadm	1.5	return -1;
207			}
208			if ((rs = mysql_store_result(db)) == NULL)
209			{
210	sysadm	1.27	log_error("Get section_config data failed");
211	sysadm	1.5	return -1;
212			}
213	sysadm	1.10	while ((row = mysql_fetch_row(rs)))
214	sysadm	1.5	{
215	sysadm	1.17	int priv = getpriv(p_priv, atoi(row[0]), &is_favor);
216	sysadm	1.5	if (p_priv->level < atoi(row[2]))
217	sysadm	1.7	{
218			priv &= (~S_LIST);
219			}
220	sysadm	1.5	if (p_priv->level < atoi(row[3]))
221	sysadm	1.7	{
222			priv &= (~S_POST);
223			}
224	sysadm	1.5	if (!atoi(row[1]))
225	sysadm	1.7	{
226			priv &= (~S_GETEXP);
227			}
228	sysadm	1.17	setpriv(p_priv, atoi(row[0]), priv, is_favor);
229	sysadm	1.5	}
230			mysql_free_result(rs);
231	sysadm	1.2
232	sysadm	1.5	// Section ban
233	sysadm	1.17	snprintf(sql, sizeof(sql),
234	sysadm	1.20	"SELECT SID FROM ban_user_list WHERE UID = %d AND enable "
235	sysadm	1.17	"AND (NOW() BETWEEN ban_dt AND unban_dt)",
236	sysadm	1.16	uid);
237	sysadm	1.5	if (mysql_query(db, sql) != 0)
238			{
239	sysadm	1.27	log_error("Query ban_user_list error: %s", mysql_error(db));
240	sysadm	1.5	return -1;
241			}
242			if ((rs = mysql_store_result(db)) == NULL)
243			{
244	sysadm	1.27	log_error("Get ban_user_list data failed");
245	sysadm	1.5	return -1;
246			}
247	sysadm	1.10	while ((row = mysql_fetch_row(rs)))
248	sysadm	1.5	{
249	sysadm	1.17	priv = getpriv(p_priv, atoi(row[0]), &is_favor) & (~S_POST);
250			setpriv(p_priv, atoi(row[0]), priv, is_favor);
251			}
252			mysql_free_result(rs);
253
254			// User favor section
255			snprintf(sql, sizeof(sql),
256	sysadm	1.20	"SELECT SID FROM section_favorite WHERE UID = %d",
257	sysadm	1.17	uid);
258			if (mysql_query(db, sql) != 0)
259			{
260	sysadm	1.27	log_error("Query section_favorite error: %s", mysql_error(db));
261	sysadm	1.17	return -1;
262			}
263			if ((rs = mysql_store_result(db)) == NULL)
264			{
265	sysadm	1.27	log_error("Get section_favorite data failed");
266	sysadm	1.17	return -1;
267			}
268			while ((row = mysql_fetch_row(rs)))
269			{
270			priv = getpriv(p_priv, atoi(row[0]), &is_favor);
271			if (!is_favor)
272			{
273			setpriv(p_priv, atoi(row[0]), priv, 1);
274			priv = getpriv(p_priv, atoi(row[0]), &is_favor);
275			}
276	sysadm	1.5	}
277			mysql_free_result(rs);
278
279			return 0;
280	sysadm	1.1	}
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