lbbs/src/user_list_display.c

/***************************************************************************
                                         user_list_display.c  -  description
                                                         -------------------
        Copyright            : (C) 2004-2025 by Leaflet
        Email                : leaflet@leafok.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "common.h"
#include "io.h"
#include "lml.h"
#include "log.h"
#include "login.h"
#include "screen.h"
#include "str_process.h"
#include "user_list.h"
#include "user_priv.h"
#include "user_list_display.h"
#include <string.h>
#include <time.h>
#include <sys/param.h>

enum select_cmd_t
{
        EXIT_LIST = 0,
        VIEW_USER,
        CHANGE_PAGE,
        REFRESH_LIST,
        SHOW_HELP,
};

static int display_user_intro_key_handler(int *p_key, DISPLAY_CTX *p_ctx)
{
        return 0;
}

static int user_list_draw_screen(int online_user)
{
        clearscr();
        show_top((online_user ? "[线上使用者]" : "[已注册用户]"), BBS_name, "");
        moveto(2, 0);
        prints("返回[\033[1;32m←\033[0;37m,\033[1;32mESC\033[0;37m] 选择[\033[1;32m↑\033[0;37m,\033[1;32m↓\033[0;37m] "
                   "查看[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 帮助[\033[1;32mh\033[0;37m]\033[m");
        moveto(3, 0);

        if (online_user)
        {
                prints("\033[44;37m \033[1;37m 编  号  用户名       昵称                 在线时长 空闲   最后活动            \033[m");
        }
        else
        {
                prints("\033[44;37m \033[1;37m 编  号  用户名       昵称                 上次登陆距今                        \033[m");
        }

        return 0;
}

static int user_list_draw_items(int page_id, USER_INFO *p_users, int user_count)
{
        char str_time_login[LINE_BUFFER_LEN];
        time_t tm_now;
        time_t tm_duration;
        struct tm *p_tm;
        int i;

        clrline(4, 23);

        time(&tm_now);

        for (i = 0; i < user_count; i++)
        {
                tm_duration = tm_now - p_users[i].last_login_dt;
                p_tm = gmtime(&tm_duration);
                if (p_tm == NULL)
                {
                        log_error("Invalid time duration\n");
                        str_time_login[0] = '\0';
                }
                else if (p_tm->tm_year > 70)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d年", p_tm->tm_year - 70);
                }
                else if (p_tm->tm_yday > 0)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d天", p_tm->tm_yday);
                }
                else if (p_tm->tm_hour > 0)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d时%d分", p_tm->tm_hour, p_tm->tm_min);
                }
                else
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d分%d秒", p_tm->tm_min, p_tm->tm_sec);
                }

                moveto(4 + i, 1);

                prints("  %6d  %s%*s %s%*s %s",
                           p_users[i].id + 1,
                           p_users[i].username,
                           BBS_username_max_len - str_length(p_users[i].username, 1),
                           "",
                           p_users[i].nickname,
                           BBS_nickname_max_len / 2 - str_length(p_users[i].nickname, 1),
                           "",
                           str_time_login);
        }

        return 0;
}

static int user_online_list_draw_items(int page_id, USER_ONLINE_INFO *p_users, int user_count)
{
        char str_time_login[LINE_BUFFER_LEN];
        char str_time_idle[LINE_BUFFER_LEN];
        const char *p_action_title;
        time_t tm_now;
        time_t tm_duration;
        struct tm *p_tm;
        int i;

        clrline(4, 23);

        time(&tm_now);

        for (i = 0; i < user_count; i++)
        {
                tm_duration = tm_now - p_users[i].login_tm;
                p_tm = gmtime(&tm_duration);
                if (p_tm == NULL)
                {
                        log_error("Invalid time duration\n");
                        str_time_login[0] = '\0';
                }
                else if (p_tm->tm_yday > 0)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d天%d时", p_tm->tm_yday, p_tm->tm_hour);
                }
                else if (p_tm->tm_hour > 0)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d时%d分", p_tm->tm_hour, p_tm->tm_min);
                }
                else
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d\'%d\"", p_tm->tm_min, p_tm->tm_sec);
                }

                tm_duration = tm_now - p_users[i].last_tm;
                p_tm = gmtime(&tm_duration);
                if (p_tm == NULL)
                {
                        log_error("Invalid time duration\n");
                        str_time_idle[0] = '\0';
                }
                else if (p_tm->tm_min > 0)
                {
                        snprintf(str_time_idle, sizeof(str_time_idle),
                                         "%d\'%d\"", p_tm->tm_min, p_tm->tm_sec);
                }
                else
                {
                        snprintf(str_time_idle, sizeof(str_time_idle),
                                         "%d\"", p_tm->tm_sec);
                }

                p_action_title = (p_users[i].current_action_title != NULL
                                                          ? p_users[i].current_action_title
                                                          : p_users[i].current_action);

                moveto(4 + i, 1);

                prints("  %6d  %s%*s %s%*s %s%*s %s%*s %s",
                           p_users[i].id + 1,
                           p_users[i].user_info.username,
                           BBS_username_max_len - str_length(p_users[i].user_info.username, 1),
                           "",
                           p_users[i].user_info.nickname,
                           BBS_nickname_max_len / 2 - str_length(p_users[i].user_info.nickname, 1),
                           "",
                           str_time_login,
                           8 - str_length(str_time_login, 1),
                           "",
                           str_time_idle,
                           6 - str_length(str_time_idle, 1),
                           "",
                           p_action_title);
        }

        return 0;
}

static enum select_cmd_t user_list_select(int total_page, int item_count, int *p_page_id, int *p_selected_index)
{
        int old_page_id = *p_page_id;
        int old_selected_index = *p_selected_index;
        int ch;

        if (item_count > 0 && *p_selected_index >= 0)
        {
                moveto(4 + *p_selected_index, 1);
                outc('>');
                iflush();
        }

        while (!SYS_server_exit)
        {
                ch = igetch(100);

                if (ch != KEY_NULL && ch != KEY_TIMEOUT)
                {
                        BBS_last_access_tm = time(NULL);
                }

                switch (ch)
                {
                case KEY_NULL: // broken pipe
                        log_error("KEY_NULL\n");
                case KEY_ESC:
                case KEY_LEFT:
                        return EXIT_LIST; // exit list
                case KEY_TIMEOUT:
                        if (time(NULL) - BBS_last_access_tm >= MAX_DELAY_TIME)
                        {
                                log_error("User input timeout\n");
                                return EXIT_LIST; // exit list
                        }
                        continue;
                case CR:
                case KEY_RIGHT:
                        if (item_count > 0)
                        {
                                return VIEW_USER;
                        }
                        break;
                case KEY_HOME:
                        *p_page_id = 0;
                case 'P':
                case KEY_PGUP:
                        *p_selected_index = 0;
                case 'k':
                case KEY_UP:
                        if (*p_selected_index <= 0)
                        {
                                if (*p_page_id > 0)
                                {
                                        (*p_page_id)--;
                                        *p_selected_index = BBS_user_limit_per_page - 1;
                                }
                                else if (ch == KEY_UP || ch == 'k') // Rotate to the tail of list
                                {
                                        if (total_page > 0)
                                        {
                                                *p_page_id = total_page - 1;
                                        }
                                        if (item_count > 0)
                                        {
                                                *p_selected_index = item_count - 1;
                                        }
                                }
                        }
                        else
                        {
                                (*p_selected_index)--;
                        }
                        break;
                case '$':
                case KEY_END:
                        if (total_page > 0)
                        {
                                *p_page_id = total_page - 1;
                        }
                case 'N':
                case KEY_PGDN:
                        if (item_count > 0)
                        {
                                *p_selected_index = item_count - 1;
                        }
                case 'j':
                case KEY_DOWN:
                        if (*p_selected_index + 1 >= item_count) // next page
                        {
                                if (*p_page_id + 1 < total_page)
                                {
                                        (*p_page_id)++;
                                        *p_selected_index = 0;
                                }
                                else if (ch == KEY_DOWN || ch == 'j') // Rotate to the head of list
                                {
                                        *p_page_id = 0;
                                        *p_selected_index = 0;
                                }
                        }
                        else
                        {
                                (*p_selected_index)++;
                        }
                        break;
                case KEY_F5:
                        return REFRESH_LIST;
                case 'h':
                        return SHOW_HELP;
                default:
                        break;
                }

                if (old_page_id != *p_page_id)
                {
                        return CHANGE_PAGE;
                }

                if (item_count > 0 && old_selected_index != *p_selected_index)
                {
                        if (old_selected_index >= 0)
                        {
                                moveto(4 + old_selected_index, 1);
                                outc(' ');
                        }
                        if (*p_selected_index >= 0)
                        {
                                moveto(4 + *p_selected_index, 1);
                                outc('>');
                        }
                        iflush();

                        old_selected_index = *p_selected_index;
                }
        }

        return EXIT_LIST;
}

int user_list_display(int online_user)
{
        char page_info_str[LINE_BUFFER_LEN];
        USER_INFO users[BBS_user_limit_per_page];
        USER_ONLINE_INFO online_users[BBS_user_limit_per_page];
        int user_count = 0;
        int page_count = 0;
        int page_id = 0;
        int selected_index = 0;
        int ret = 0;

        user_list_draw_screen(online_user);

        if (online_user)
        {
                ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
                if (ret < 0)
                {
                        log_error("query_user_online_list(page_id=%d) error\n", page_id);
                        return -2;
                }
        }
        else
        {
                ret = query_user_list(page_id, users, &user_count, &page_count);
                if (ret < 0)
                {
                        log_error("query_user_list(page_id=%d) error\n", page_id);
                        return -2;
                }
        }

        if (user_count == 0) // empty list
        {
                selected_index = 0;
        }

        while (!SYS_server_exit)
        {
                if (online_user)
                {
                        ret = user_online_list_draw_items(page_id, online_users, user_count);
                        if (ret < 0)
                        {
                                log_error("user_online_list_draw_items(page_id=%d) error\n", page_id);
                                return -3;
                        }
                }
                else
                {
                        ret = user_list_draw_items(page_id, users, user_count);
                        if (ret < 0)
                        {
                                log_error("user_list_draw_items(page_id=%d) error\n", page_id);
                                return -3;
                        }
                }

                snprintf(page_info_str, sizeof(page_info_str),
                                 "\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
                                 page_id + 1, MAX(page_count, 1));

                show_bottom(page_info_str);
                iflush();

                if (user_online_update(online_user ? "USER_ONLINE" : "USER_LIST") < 0)
                {
                        log_error("user_online_update(%s) error\n",
                                          (online_user ? "USER_ONLINE" : "USER_LIST"));
                }

                ret = user_list_select(page_count, user_count, &page_id, &selected_index);
                switch (ret)
                {
                case EXIT_LIST:
                        return 0;
                case REFRESH_LIST:
                case CHANGE_PAGE:
                        if (online_user)
                        {
                                ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
                                if (ret < 0)
                                {
                                        log_error("query_user_online_list(page_id=%d) error\n", page_id);
                                        return -2;
                                }
                        }
                        else
                        {
                                ret = query_user_list(page_id, users, &user_count, &page_count);
                                if (ret < 0)
                                {
                                        log_error("query_user_list(page_id=%d) error\n", page_id);
                                        return -2;
                                }
                        }

                        if (user_count == 0) // empty list
                        {
                                selected_index = 0;
                        }
                        else if (selected_index >= user_count)
                        {
                                selected_index = user_count - 1;
                        }
                        break;
                case VIEW_USER:
                        clearscr();
                        if (online_user)
                        {
                                USER_ONLINE_INFO users[5];
                                int user_cnt = 5;
                                ret = query_user_online_info_by_uid(online_users[selected_index].user_info.uid, users, &user_cnt, 0);
                                if (ret <= 0)
                                {
                                        log_error("query_user_online_info_by_uid(uid=%d, cnt=%d) error: %d\n",
                                                          online_users[selected_index].user_info.uid, user_cnt, ret);
                                }
                                else
                                {
                                        moveto(1, 1);
                                        prints("已选中用户 [%s] 会话 %d", online_users[selected_index].user_info.username, online_users[selected_index].id);

                                        for (int i = 0; i < user_cnt; i++)
                                        {
                                                moveto(2 + i, 1);
                                                prints("会话%d", users[i].id);
                                        }
                                }
                        }
                        else
                        {
                                char intro_f[BBS_user_intro_max_len];
                                char profile_f[BUFSIZ];
                                long line_offsets[BBS_user_intro_max_line + 1];
                                long lines;

                                lml_render(users[selected_index].intro, intro_f, sizeof(intro_f), 0);

                                snprintf(profile_f, sizeof(profile_f),
                                                 "已选中用户 [%s]\n发帖数：%d\n\n%s\n",
                                                 users[selected_index].username,
                                                 user_stat_get_article_cnt(users[selected_index].uid),
                                                 intro_f);

                                lines = split_data_lines(profile_f, SCREEN_COLS, line_offsets, BBS_user_intro_max_line + 4, 1, NULL);
                                display_data(profile_f, lines, line_offsets, 2, display_user_intro_key_handler, DATA_READ_HELP);
                        }
                        press_any_key();
                        user_list_draw_screen(online_user);
                        break;
                case SHOW_HELP:
                        // Display help information
                        display_file(DATA_READ_HELP, 1);
                        user_list_draw_screen(online_user);
                        break;
                default:
                        log_error("Unknown command %d\n", ret);
                }
        }

        return 0;
}
1	sysadm	1.1	/***************************************************************************
2			user_list_display.c - description
3			-------------------
4			Copyright : (C) 2004-2025 by Leaflet
5			Email : leaflet@leafok.com
6			***************************************************************************/
7
8			/***************************************************************************
9			* *
10			* This program is free software; you can redistribute it and/or modify *
11			* it under the terms of the GNU General Public License as published by *
12			* the Free Software Foundation; either version 3 of the License, or *
13			* (at your option) any later version. *
14			* *
15			***************************************************************************/
16
17			#include "common.h"
18			#include "io.h"
19	sysadm	1.10	#include "lml.h"
20	sysadm	1.1	#include "log.h"
21			#include "login.h"
22			#include "screen.h"
23			#include "str_process.h"
24			#include "user_list.h"
25			#include "user_priv.h"
26			#include "user_list_display.h"
27			#include <string.h>
28			#include <time.h>
29			#include <sys/param.h>
30
31			enum select_cmd_t
32			{
33			EXIT_LIST = 0,
34			VIEW_USER,
35			CHANGE_PAGE,
36	sysadm	1.4	REFRESH_LIST,
37	sysadm	1.1	SHOW_HELP,
38			};
39
40	sysadm	1.10	static int display_user_intro_key_handler(int p_key, DISPLAY_CTX p_ctx)
41			{
42			return 0;
43			}
44
45	sysadm	1.3	static int user_list_draw_screen(int online_user)
46	sysadm	1.1	{
47			clearscr();
48	sysadm	1.5	show_top((online_user ? "[线上使用者]" : "[已注册用户]"), BBS_name, "");
49	sysadm	1.1	moveto(2, 0);
50			prints("返回[\033[1;32m←\033[0;37m,\033[1;32mESC\033[0;37m] 选择[\033[1;32m↑\033[0;37m,\033[1;32m↓\033[0;37m] "
51			"查看[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 帮助[\033[1;32mh\033[0;37m]\033[m");
52			moveto(3, 0);
53	sysadm	1.3
54			if (online_user)
55			{
56			prints("\033[44;37m \033[1;37m 编号用户名昵称在线时长空闲最后活动 \033[m");
57			}
58			else
59			{
60			prints("\033[44;37m \033[1;37m 编号用户名昵称上次登陆距今 \033[m");
61			}
62	sysadm	1.1
63			return 0;
64			}
65
66	sysadm	1.3	static int user_list_draw_items(int page_id, USER_INFO *p_users, int user_count)
67	sysadm	1.1	{
68	sysadm	1.3	char str_time_login[LINE_BUFFER_LEN];
69	sysadm	1.1	time_t tm_now;
70			time_t tm_duration;
71			struct tm *p_tm;
72			int i;
73
74			clrline(4, 23);
75
76			time(&tm_now);
77
78			for (i = 0; i < user_count; i++)
79			{
80			tm_duration = tm_now - p_users[i].last_login_dt;
81			p_tm = gmtime(&tm_duration);
82	sysadm	1.3	if (p_tm == NULL)
83	sysadm	1.1	{
84	sysadm	1.3	log_error("Invalid time duration\n");
85			str_time_login[0] = '\0';
86			}
87			else if (p_tm->tm_year > 70)
88			{
89			snprintf(str_time_login, sizeof(str_time_login),
90	sysadm	1.1	"%d年", p_tm->tm_year - 70);
91			}
92	sysadm	1.3	else if (p_tm->tm_yday > 0)
93	sysadm	1.1	{
94	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
95	sysadm	1.1	"%d天", p_tm->tm_yday);
96			}
97			else if (p_tm->tm_hour > 0)
98			{
99	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
100	sysadm	1.1	"%d时%d分", p_tm->tm_hour, p_tm->tm_min);
101			}
102			else
103			{
104	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
105	sysadm	1.1	"%d分%d秒", p_tm->tm_min, p_tm->tm_sec);
106			}
107
108			moveto(4 + i, 1);
109
110	sysadm	1.3	prints(" %6d %s%s %s%s %s",
111	sysadm	1.4	p_users[i].id + 1,
112	sysadm	1.1	p_users[i].username,
113			BBS_username_max_len - str_length(p_users[i].username, 1),
114			"",
115			p_users[i].nickname,
116			BBS_nickname_max_len / 2 - str_length(p_users[i].nickname, 1),
117			"",
118	sysadm	1.3	str_time_login);
119			}
120
121			return 0;
122			}
123
124			static int user_online_list_draw_items(int page_id, USER_ONLINE_INFO *p_users, int user_count)
125			{
126			char str_time_login[LINE_BUFFER_LEN];
127			char str_time_idle[LINE_BUFFER_LEN];
128			const char *p_action_title;
129			time_t tm_now;
130			time_t tm_duration;
131			struct tm *p_tm;
132			int i;
133
134			clrline(4, 23);
135
136			time(&tm_now);
137
138			for (i = 0; i < user_count; i++)
139			{
140			tm_duration = tm_now - p_users[i].login_tm;
141			p_tm = gmtime(&tm_duration);
142			if (p_tm == NULL)
143			{
144			log_error("Invalid time duration\n");
145			str_time_login[0] = '\0';
146			}
147			else if (p_tm->tm_yday > 0)
148			{
149			snprintf(str_time_login, sizeof(str_time_login),
150			"%d天%d时", p_tm->tm_yday, p_tm->tm_hour);
151			}
152			else if (p_tm->tm_hour > 0)
153			{
154			snprintf(str_time_login, sizeof(str_time_login),
155			"%d时%d分", p_tm->tm_hour, p_tm->tm_min);
156			}
157			else
158			{
159			snprintf(str_time_login, sizeof(str_time_login),
160			"%d\'%d\"", p_tm->tm_min, p_tm->tm_sec);
161			}
162
163			tm_duration = tm_now - p_users[i].last_tm;
164			p_tm = gmtime(&tm_duration);
165			if (p_tm == NULL)
166			{
167			log_error("Invalid time duration\n");
168			str_time_idle[0] = '\0';
169			}
170			else if (p_tm->tm_min > 0)
171			{
172			snprintf(str_time_idle, sizeof(str_time_idle),
173			"%d\'%d\"", p_tm->tm_min, p_tm->tm_sec);
174			}
175			else
176			{
177			snprintf(str_time_idle, sizeof(str_time_idle),
178			"%d\"", p_tm->tm_sec);
179			}
180
181			p_action_title = (p_users[i].current_action_title != NULL
182			? p_users[i].current_action_title
183			: p_users[i].current_action);
184
185			moveto(4 + i, 1);
186
187			prints(" %6d %s%s %s%s %s%s %s%s %s",
188	sysadm	1.4	p_users[i].id + 1,
189	sysadm	1.3	p_users[i].user_info.username,
190			BBS_username_max_len - str_length(p_users[i].user_info.username, 1),
191			"",
192			p_users[i].user_info.nickname,
193			BBS_nickname_max_len / 2 - str_length(p_users[i].user_info.nickname, 1),
194			"",
195			str_time_login,
196			8 - str_length(str_time_login, 1),
197			"",
198			str_time_idle,
199			6 - str_length(str_time_idle, 1),
200			"",
201			p_action_title);
202	sysadm	1.1	}
203
204			return 0;
205			}
206
207			static enum select_cmd_t user_list_select(int total_page, int item_count, int p_page_id, int p_selected_index)
208			{
209			int old_page_id = *p_page_id;
210			int old_selected_index = *p_selected_index;
211			int ch;
212
213			if (item_count > 0 && *p_selected_index >= 0)
214			{
215			moveto(4 + *p_selected_index, 1);
216			outc('>');
217			iflush();
218			}
219
220			while (!SYS_server_exit)
221			{
222			ch = igetch(100);
223
224			if (ch != KEY_NULL && ch != KEY_TIMEOUT)
225			{
226			BBS_last_access_tm = time(NULL);
227			}
228
229			switch (ch)
230			{
231			case KEY_NULL: // broken pipe
232			log_error("KEY_NULL\n");
233			case KEY_ESC:
234			case KEY_LEFT:
235			return EXIT_LIST; // exit list
236			case KEY_TIMEOUT:
237			if (time(NULL) - BBS_last_access_tm >= MAX_DELAY_TIME)
238			{
239			log_error("User input timeout\n");
240			return EXIT_LIST; // exit list
241			}
242			continue;
243			case CR:
244			case KEY_RIGHT:
245			if (item_count > 0)
246			{
247			return VIEW_USER;
248			}
249			break;
250			case KEY_HOME:
251			*p_page_id = 0;
252			case 'P':
253			case KEY_PGUP:
254			*p_selected_index = 0;
255			case 'k':
256			case KEY_UP:
257			if (*p_selected_index <= 0)
258			{
259			if (*p_page_id > 0)
260			{
261			(*p_page_id)--;
262			*p_selected_index = BBS_user_limit_per_page - 1;
263			}
264			else if (ch == KEY_UP \|\| ch == 'k') // Rotate to the tail of list
265			{
266			if (total_page > 0)
267			{
268			*p_page_id = total_page - 1;
269			}
270			if (item_count > 0)
271			{
272			*p_selected_index = item_count - 1;
273			}
274			}
275			}
276			else
277			{
278			(*p_selected_index)--;
279			}
280			break;
281			case '$':
282			case KEY_END:
283			if (total_page > 0)
284			{
285			*p_page_id = total_page - 1;
286			}
287			case 'N':
288			case KEY_PGDN:
289			if (item_count > 0)
290			{
291			*p_selected_index = item_count - 1;
292			}
293			case 'j':
294			case KEY_DOWN:
295			if (*p_selected_index + 1 >= item_count) // next page
296			{
297			if (*p_page_id + 1 < total_page)
298			{
299			(*p_page_id)++;
300			*p_selected_index = 0;
301			}
302			else if (ch == KEY_DOWN \|\| ch == 'j') // Rotate to the head of list
303			{
304			*p_page_id = 0;
305			*p_selected_index = 0;
306			}
307			}
308			else
309			{
310			(*p_selected_index)++;
311			}
312			break;
313	sysadm	1.4	case KEY_F5:
314			return REFRESH_LIST;
315	sysadm	1.1	case 'h':
316			return SHOW_HELP;
317			default:
318			break;
319			}
320
321			if (old_page_id != *p_page_id)
322			{
323			return CHANGE_PAGE;
324			}
325
326			if (item_count > 0 && old_selected_index != *p_selected_index)
327			{
328			if (old_selected_index >= 0)
329			{
330			moveto(4 + old_selected_index, 1);
331			outc(' ');
332			}
333			if (*p_selected_index >= 0)
334			{
335			moveto(4 + *p_selected_index, 1);
336			outc('>');
337			}
338			iflush();
339
340			old_selected_index = *p_selected_index;
341			}
342			}
343
344			return EXIT_LIST;
345			}
346
347	sysadm	1.3	int user_list_display(int online_user)
348	sysadm	1.1	{
349			char page_info_str[LINE_BUFFER_LEN];
350			USER_INFO users[BBS_user_limit_per_page];
351	sysadm	1.3	USER_ONLINE_INFO online_users[BBS_user_limit_per_page];
352	sysadm	1.7	int user_count = 0;
353			int page_count = 0;
354	sysadm	1.1	int page_id = 0;
355			int selected_index = 0;
356	sysadm	1.7	int ret = 0;
357	sysadm	1.1
358	sysadm	1.3	user_list_draw_screen(online_user);
359	sysadm	1.1
360	sysadm	1.3	if (online_user)
361			{
362			ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
363			if (ret < 0)
364			{
365			log_error("query_user_online_list(page_id=%d) error\n", page_id);
366			return -2;
367			}
368			}
369			else
370	sysadm	1.1	{
371	sysadm	1.3	ret = query_user_list(page_id, users, &user_count, &page_count);
372			if (ret < 0)
373			{
374			log_error("query_user_list(page_id=%d) error\n", page_id);
375			return -2;
376			}
377	sysadm	1.1	}
378
379			if (user_count == 0) // empty list
380			{
381			selected_index = 0;
382			}
383
384			while (!SYS_server_exit)
385			{
386	sysadm	1.3	if (online_user)
387			{
388			ret = user_online_list_draw_items(page_id, online_users, user_count);
389			if (ret < 0)
390			{
391			log_error("user_online_list_draw_items(page_id=%d) error\n", page_id);
392			return -3;
393			}
394			}
395			else
396	sysadm	1.1	{
397	sysadm	1.3	ret = user_list_draw_items(page_id, users, user_count);
398			if (ret < 0)
399			{
400			log_error("user_list_draw_items(page_id=%d) error\n", page_id);
401			return -3;
402			}
403	sysadm	1.1	}
404
405			snprintf(page_info_str, sizeof(page_info_str),
406			"\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
407			page_id + 1, MAX(page_count, 1));
408
409			show_bottom(page_info_str);
410			iflush();
411
412	sysadm	1.3	if (user_online_update(online_user ? "USER_ONLINE" : "USER_LIST") < 0)
413	sysadm	1.1	{
414	sysadm	1.3	log_error("user_online_update(%s) error\n",
415			(online_user ? "USER_ONLINE" : "USER_LIST"));
416	sysadm	1.1	}
417
418			ret = user_list_select(page_count, user_count, &page_id, &selected_index);
419			switch (ret)
420			{
421			case EXIT_LIST:
422			return 0;
423	sysadm	1.4	case REFRESH_LIST:
424	sysadm	1.1	case CHANGE_PAGE:
425	sysadm	1.4	if (online_user)
426			{
427			ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
428			if (ret < 0)
429			{
430			log_error("query_user_online_list(page_id=%d) error\n", page_id);
431			return -2;
432			}
433			}
434			else
435	sysadm	1.1	{
436	sysadm	1.4	ret = query_user_list(page_id, users, &user_count, &page_count);
437			if (ret < 0)
438			{
439			log_error("query_user_list(page_id=%d) error\n", page_id);
440			return -2;
441			}
442	sysadm	1.1	}
443
444			if (user_count == 0) // empty list
445			{
446			selected_index = 0;
447			}
448			else if (selected_index >= user_count)
449			{
450			selected_index = user_count - 1;
451			}
452			break;
453			case VIEW_USER:
454	sysadm	1.3	clearscr();
455	sysadm	1.6	if (online_user)
456			{
457	sysadm	1.8	USER_ONLINE_INFO users[5];
458			int user_cnt = 5;
459			ret = query_user_online_info_by_uid(online_users[selected_index].user_info.uid, users, &user_cnt, 0);
460			if (ret <= 0)
461			{
462			log_error("query_user_online_info_by_uid(uid=%d, cnt=%d) error: %d\n",
463			online_users[selected_index].user_info.uid, user_cnt, ret);
464			}
465			else
466			{
467	sysadm	1.10	moveto(1, 1);
468			prints("已选中用户 [%s] 会话 %d", online_users[selected_index].user_info.username, online_users[selected_index].id);
469
470	sysadm	1.8	for (int i = 0; i < user_cnt; i++)
471			{
472			moveto(2 + i, 1);
473			prints("会话%d", users[i].id);
474			}
475			}
476	sysadm	1.6	}
477			else
478			{
479	sysadm	1.10	char intro_f[BBS_user_intro_max_len];
480			char profile_f[BUFSIZ];
481			long line_offsets[BBS_user_intro_max_line + 1];
482			long lines;
483
484			lml_render(users[selected_index].intro, intro_f, sizeof(intro_f), 0);
485
486			snprintf(profile_f, sizeof(profile_f),
487			"已选中用户 [%s]\n发帖数：%d\n\n%s\n",
488			users[selected_index].username,
489			user_stat_get_article_cnt(users[selected_index].uid),
490			intro_f);
491
492			lines = split_data_lines(profile_f, SCREEN_COLS, line_offsets, BBS_user_intro_max_line + 4, 1, NULL);
493			display_data(profile_f, lines, line_offsets, 2, display_user_intro_key_handler, DATA_READ_HELP);
494	sysadm	1.6	}
495	sysadm	1.4	press_any_key();
496	sysadm	1.3	user_list_draw_screen(online_user);
497	sysadm	1.1	break;
498			case SHOW_HELP:
499			// Display help information
500			display_file(DATA_READ_HELP, 1);
501	sysadm	1.3	user_list_draw_screen(online_user);
502	sysadm	1.1	break;
503			default:
504			log_error("Unknown command %d\n", ret);
505			}
506			}
507
508			return 0;
509			}
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