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	/* SPDX-License-Identifier: GPL-3.0-or-later */
2	/*
3	* user_priv
4	* - basic operations of user privilege
5	*
6	* Copyright (C) 2004-2026 Leaflet <leaflet@leafok.com>
7	*/
8
9	#ifdef HAVE_CONFIG_H
10	#include "config.h"
11	#endif
12
13	#include "bbs.h"
14	#include "common.h"
15	#include "database.h"
16	#include "log.h"
17	#include "user_priv.h"
18	#include <stdio.h>
19	#include <stdlib.h>
20	#include <mysql.h>
21
22	BBS_user_priv BBS_priv;
23
24	// 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	inline static int search_priv(BBS_user_priv p_priv, int sid, int p_offset)
31	{
32	int left = 0;
33	int right = p_priv->s_count - 1;
34	int mid = 0;
35
36	while (left < right)
37	{
38	mid = (left + right) / 2;
39
40	if (sid < p_priv->s_priv_list[mid].sid)
41	{
42	right = mid - 1;
43	}
44	else if (sid > p_priv->s_priv_list[mid].sid)
45	{
46	left = mid + 1;
47	}
48	else // if (sid == p_priv->s_priv_list[mid].sid)
49	{
50	left = mid;
51	break;
52	}
53	}
54
55	*p_offset = left;
56
57	return (sid == p_priv->s_priv_list[left].sid);
58	}
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	if (search_priv(p_priv, sid, &offset)) // found
72	{
73	p_priv->s_priv_list[offset].s_priv = priv;
74	p_priv->s_priv_list[offset].is_favor = is_favor;
75	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	for (i = p_priv->s_count - 1; i >= offset; i--)
86	{
87	p_priv->s_priv_list[i + 1] = p_priv->s_priv_list[i];
88	}
89	p_priv->s_count++;
90
91	// insert new item at offset left
92	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
96	return 0;
97	}
98
99	int getpriv(BBS_user_priv p_priv, int sid, int p_is_favor)
100	{
101	int offset;
102
103	if (search_priv(p_priv, sid, &offset)) // found
104	{
105	*p_is_favor = p_priv->s_priv_list[offset].is_favor;
106	return p_priv->s_priv_list[offset].s_priv;
107	}
108
109	*p_is_favor = 0;
110	return (sid >= 0 ? p_priv->g_priv : S_NONE);
111	}
112
113	int load_priv(MYSQL db, BBS_user_priv p_priv, int uid)
114	{
115	MYSQL_RES *rs;
116	MYSQL_ROW row;
117	char sql[SQL_BUFFER_LEN];
118	int priv;
119	int is_favor;
120
121	p_priv->uid = uid;
122	p_priv->level = (uid == 0 ? P_GUEST : P_USER);
123	p_priv->g_priv = S_DEFAULT;
124	p_priv->s_count = 0;
125
126	if (db == NULL)
127	return 1;
128
129	// Permission
130	snprintf(sql, sizeof(sql),
131	"SELECT p_post, p_msg FROM user_list WHERE UID = %d AND verified",
132	uid);
133	if (mysql_query(db, sql) != 0)
134	{
135	log_error("Query user_list error: %s", mysql_error(db));
136	return -1;
137	}
138	if ((rs = mysql_store_result(db)) == NULL)
139	{
140	log_error("Get user_list data failed");
141	return -1;
142	}
143	if ((row = mysql_fetch_row(rs)))
144	{
145	p_priv->g_priv \|= (atoi(row[0]) ? S_POST : 0);
146	p_priv->g_priv \|= (atoi(row[1]) ? S_MSG : 0);
147	}
148	mysql_free_result(rs);
149
150	// Admin
151	snprintf(sql, sizeof(sql),
152	"SELECT major FROM admin_config WHERE UID = %d "
153	"AND enable AND (NOW() BETWEEN begin_dt AND end_dt)",
154	uid);
155	if (mysql_query(db, sql) != 0)
156	{
157	log_error("Query admin_config error: %s", mysql_error(db));
158	return -1;
159	}
160	if ((rs = mysql_store_result(db)) == NULL)
161	{
162	log_error("Get admin_config data failed");
163	return -1;
164	}
165	if ((row = mysql_fetch_row(rs)))
166	{
167	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	}
170	mysql_free_result(rs);
171
172	// Section Master
173	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	"WHERE UID = %d AND section_master.enable AND section_config.enable "
177	"AND (NOW() BETWEEN begin_dt AND end_dt)",
178	uid);
179	if (mysql_query(db, sql) != 0)
180	{
181	log_error("Query section_master error: %s", mysql_error(db));
182	return -1;
183	}
184	if ((rs = mysql_store_result(db)) == NULL)
185	{
186	log_error("Get section_master data failed");
187	return -1;
188	}
189	while ((row = mysql_fetch_row(rs)))
190	{
191	p_priv->level \|= (atoi(row[1]) ? P_MAN_M : P_MAN_S);
192	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	}
195	mysql_free_result(rs);
196
197	// Section status
198	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	if (mysql_query(db, sql) != 0)
204	{
205	log_error("Query section_config error: %s", mysql_error(db));
206	return -1;
207	}
208	if ((rs = mysql_store_result(db)) == NULL)
209	{
210	log_error("Get section_config data failed");
211	return -1;
212	}
213	while ((row = mysql_fetch_row(rs)))
214	{
215	int priv = getpriv(p_priv, atoi(row[0]), &is_favor);
216	if (p_priv->level < atoi(row[2]))
217	{
218	priv &= (~S_LIST);
219	}
220	if (p_priv->level < atoi(row[3]))
221	{
222	priv &= (~S_POST);
223	}
224	if (!atoi(row[1]))
225	{
226	priv &= (~S_GETEXP);
227	}
228	setpriv(p_priv, atoi(row[0]), priv, is_favor);
229	}
230	mysql_free_result(rs);
231
232	// Section ban
233	snprintf(sql, sizeof(sql),
234	"SELECT SID FROM ban_user_list WHERE UID = %d AND enable "
235	"AND (NOW() BETWEEN ban_dt AND unban_dt)",
236	uid);
237	if (mysql_query(db, sql) != 0)
238	{
239	log_error("Query ban_user_list error: %s", mysql_error(db));
240	return -1;
241	}
242	if ((rs = mysql_store_result(db)) == NULL)
243	{
244	log_error("Get ban_user_list data failed");
245	return -1;
246	}
247	while ((row = mysql_fetch_row(rs)))
248	{
249	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	"SELECT SID FROM section_favorite WHERE UID = %d",
257	uid);
258	if (mysql_query(db, sql) != 0)
259	{
260	log_error("Query section_favorite error: %s", mysql_error(db));
261	return -1;
262	}
263	if ((rs = mysql_store_result(db)) == NULL)
264	{
265	log_error("Get section_favorite data failed");
266	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	}
277	mysql_free_result(rs);
278
279	return 0;
280	}
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