lbbs/src/user_list_display.c

/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
 * user_list_display
 *   - user interactive list of (online) users
 *
 * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
 */

#include "common.h"
#include "io.h"
#include "log.h"
#include "login.h"
#include "screen.h"
#include "str_process.h"
#include "user_list.h"
#include "user_priv.h"
#include "user_info_display.h"
#include "user_list_display.h"
#include <ctype.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,
        SEARCH_USER,
};

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] 查找[\033[1;32ms\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%d天", p_tm->tm_year - 70, p_tm->tm_yday);
                }
                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:%.2d", p_tm->tm_hour, p_tm->tm_min);
                }
                else
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d\'%.2d\"", 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),
                                         "%dd%dh", p_tm->tm_yday, p_tm->tm_hour);
                }
                else if (p_tm->tm_hour > 0)
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d:%.2d", p_tm->tm_hour, p_tm->tm_min);
                }
                else
                {
                        snprintf(str_time_login, sizeof(str_time_login),
                                         "%d\'%.2d\"", 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 >= BBS_max_user_idle_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 's':
                        return SEARCH_USER;
                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:
                        user_info_display(online_user ? &(online_users[selected_index].user_info) : &(users[selected_index]));
                        user_list_draw_screen(online_user);
                        break;
                case SEARCH_USER:
                        user_list_search();
                        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;
}

int user_list_search(void)
{
        const int users_per_line = 5;
        const int max_user_lines = 20;
        const int max_user_cnt = users_per_line * max_user_lines + 1;

        char username[BBS_username_max_len + 1];
        int32_t uid_list[max_user_cnt];
        char username_list[max_user_cnt][BBS_username_max_len + 1];
        int ret;
        int i;
        USER_INFO user_info;
        char user_intro[BBS_user_intro_max_len + 1];
        int ok;
        int ch;

        username[0] = '\0';

        clearscr();

        while (!SYS_server_exit)
        {
                clrline(3, SCREEN_ROWS);
                get_data(2, 1, "查找谁: ", username, sizeof(username), BBS_username_max_len);

                if (username[0] == '\0')
                {
                        return 0;
                }

                // Verify format
                for (i = 0, ok = 1; ok && username[i] != '\0'; i++)
                {
                        if (!(isalpha(username[i]) || (i > 0 && (isdigit(username[i]) || username[i] == '_'))))
                        {
                                ok = 0;
                        }
                }
                if (ok && i > BBS_username_max_len)
                {
                        ok = 0;
                }
                if (!ok)
                {
                        moveto(3, 1);
                        clrtoeol();
                        prints("用户名格式非法");
                        continue;
                }

                clrline(3, SCREEN_ROWS);

                ret = query_user_info_by_username(username, max_user_cnt, uid_list, username_list);

                if (ret < 0)
                {
                        log_error("query_user_info_by_username(%s) error\n", username);
                        return -1;
                }
                else if (ret > 1)
                {
                        for (i = 0; i < MIN(ret, users_per_line * max_user_lines); i++)
                        {
                                moveto(4 + i / users_per_line, 3 + i % users_per_line * (BBS_username_max_len + 3));
                                prints("%s", username_list[i]);
                        }
                        moveto(SCREEN_ROWS, 1);
                        if (ret > users_per_line * max_user_lines)
                        {
                                prints("还有更多...");
                        }

                        moveto(3, 1);
                        prints("存在多个匹配的用户，按\033[1;33mEnter\033[m精确查找");
                        iflush();

                        ch = igetch_t(BBS_max_user_idle_time);
                        switch (ch)
                        {
                        case KEY_NULL:
                        case KEY_TIMEOUT:
                                return -1;
                        case KEY_ESC:
                                return 0;
                        case CR:
                                ret = (strcasecmp(username_list[0], username) == 0 ? 1 : 0);
                                break;
                        default:
                                i = (int)strnlen(username, sizeof(username) - 1);
                                if (i + 1 <= BBS_username_max_len && (isalnum((char)ch) || ch == '_'))
                                {
                                        username[i] = (char)ch;
                                        username[i + 1] = '\0';
                                }
                                continue;
                        }
                }

                clrline(3, SCREEN_ROWS);
                if (ret == 0)
                {
                        moveto(3, 1);
                        prints("没有找到符合条件的用户");
                        press_any_key();
                        return 0;
                }
                else // ret == 1
                {
                        if (query_user_info_by_uid(uid_list[0], &user_info, user_intro, sizeof(user_intro)) <= 0)
                        {
                                log_error("query_user_info_by_uid(uid=%d) error\n", uid_list[0]);
                                return -2;
                        }
                        else if (user_info_display(&user_info) < 0)
                        {
                                log_error("user_info_display(uid=%d) error\n", uid_list[0]);
                                return -3;
                        }
                        return 1;
                }
        }

        return 0;
}
1	sysadm	1.20	/* SPDX-License-Identifier: GPL-3.0-or-later */
2			/*
3			* user_list_display
4			* - user interactive list of (online) users
5			*
6	sysadm	1.21	* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7	sysadm	1.20	*/
8	sysadm	1.1
9			#include "common.h"
10			#include "io.h"
11			#include "log.h"
12			#include "login.h"
13			#include "screen.h"
14			#include "str_process.h"
15			#include "user_list.h"
16			#include "user_priv.h"
17	sysadm	1.12	#include "user_info_display.h"
18	sysadm	1.1	#include "user_list_display.h"
19	sysadm	1.14	#include <ctype.h>
20	sysadm	1.1	#include <string.h>
21			#include <time.h>
22			#include <sys/param.h>
23
24			enum select_cmd_t
25			{
26			EXIT_LIST = 0,
27			VIEW_USER,
28			CHANGE_PAGE,
29	sysadm	1.4	REFRESH_LIST,
30	sysadm	1.1	SHOW_HELP,
31	sysadm	1.14	SEARCH_USER,
32	sysadm	1.1	};
33
34	sysadm	1.3	static int user_list_draw_screen(int online_user)
35	sysadm	1.1	{
36			clearscr();
37	sysadm	1.5	show_top((online_user ? "[线上使用者]" : "[已注册用户]"), BBS_name, "");
38	sysadm	1.1	moveto(2, 0);
39			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] "
40	sysadm	1.14	"查看[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 查找[\033[1;32ms\033[0;37m] "
41			"帮助[\033[1;32mh\033[0;37m]\033[m");
42	sysadm	1.1	moveto(3, 0);
43	sysadm	1.3
44			if (online_user)
45			{
46			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");
47			}
48			else
49			{
50			prints("\033[44;37m \033[1;37m 编号用户名昵称上次登陆距今 \033[m");
51			}
52	sysadm	1.1
53			return 0;
54			}
55
56	sysadm	1.3	static int user_list_draw_items(int page_id, USER_INFO *p_users, int user_count)
57	sysadm	1.1	{
58	sysadm	1.3	char str_time_login[LINE_BUFFER_LEN];
59	sysadm	1.1	time_t tm_now;
60			time_t tm_duration;
61			struct tm *p_tm;
62			int i;
63
64			clrline(4, 23);
65
66			time(&tm_now);
67
68			for (i = 0; i < user_count; i++)
69			{
70			tm_duration = tm_now - p_users[i].last_login_dt;
71			p_tm = gmtime(&tm_duration);
72	sysadm	1.3	if (p_tm == NULL)
73	sysadm	1.1	{
74	sysadm	1.3	log_error("Invalid time duration\n");
75			str_time_login[0] = '\0';
76			}
77			else if (p_tm->tm_year > 70)
78			{
79			snprintf(str_time_login, sizeof(str_time_login),
80	sysadm	1.13	"%d年%d天", p_tm->tm_year - 70, p_tm->tm_yday);
81	sysadm	1.1	}
82	sysadm	1.3	else if (p_tm->tm_yday > 0)
83	sysadm	1.1	{
84	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
85	sysadm	1.1	"%d天", p_tm->tm_yday);
86			}
87			else if (p_tm->tm_hour > 0)
88			{
89	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
90	sysadm	1.13	"%d:%.2d", p_tm->tm_hour, p_tm->tm_min);
91	sysadm	1.1	}
92			else
93			{
94	sysadm	1.3	snprintf(str_time_login, sizeof(str_time_login),
95	sysadm	1.13	"%d\'%.2d\"", p_tm->tm_min, p_tm->tm_sec);
96	sysadm	1.1	}
97
98			moveto(4 + i, 1);
99
100	sysadm	1.3	prints(" %6d %s%s %s%s %s",
101	sysadm	1.4	p_users[i].id + 1,
102	sysadm	1.1	p_users[i].username,
103			BBS_username_max_len - str_length(p_users[i].username, 1),
104			"",
105			p_users[i].nickname,
106			BBS_nickname_max_len / 2 - str_length(p_users[i].nickname, 1),
107			"",
108	sysadm	1.3	str_time_login);
109			}
110
111			return 0;
112			}
113
114			static int user_online_list_draw_items(int page_id, USER_ONLINE_INFO *p_users, int user_count)
115			{
116			char str_time_login[LINE_BUFFER_LEN];
117			char str_time_idle[LINE_BUFFER_LEN];
118			const char *p_action_title;
119			time_t tm_now;
120			time_t tm_duration;
121			struct tm *p_tm;
122			int i;
123
124			clrline(4, 23);
125
126			time(&tm_now);
127
128			for (i = 0; i < user_count; i++)
129			{
130			tm_duration = tm_now - p_users[i].login_tm;
131			p_tm = gmtime(&tm_duration);
132			if (p_tm == NULL)
133			{
134			log_error("Invalid time duration\n");
135			str_time_login[0] = '\0';
136			}
137			else if (p_tm->tm_yday > 0)
138			{
139			snprintf(str_time_login, sizeof(str_time_login),
140	sysadm	1.13	"%dd%dh", p_tm->tm_yday, p_tm->tm_hour);
141	sysadm	1.3	}
142			else if (p_tm->tm_hour > 0)
143			{
144			snprintf(str_time_login, sizeof(str_time_login),
145	sysadm	1.13	"%d:%.2d", p_tm->tm_hour, p_tm->tm_min);
146	sysadm	1.3	}
147			else
148			{
149			snprintf(str_time_login, sizeof(str_time_login),
150	sysadm	1.13	"%d\'%.2d\"", p_tm->tm_min, p_tm->tm_sec);
151	sysadm	1.3	}
152
153			tm_duration = tm_now - p_users[i].last_tm;
154			p_tm = gmtime(&tm_duration);
155			if (p_tm == NULL)
156			{
157			log_error("Invalid time duration\n");
158			str_time_idle[0] = '\0';
159			}
160			else if (p_tm->tm_min > 0)
161			{
162			snprintf(str_time_idle, sizeof(str_time_idle),
163			"%d\'%d\"", p_tm->tm_min, p_tm->tm_sec);
164			}
165			else
166			{
167			snprintf(str_time_idle, sizeof(str_time_idle),
168			"%d\"", p_tm->tm_sec);
169			}
170
171			p_action_title = (p_users[i].current_action_title != NULL
172			? p_users[i].current_action_title
173			: p_users[i].current_action);
174
175			moveto(4 + i, 1);
176
177			prints(" %6d %s%s %s%s %s%s %s%s %s",
178	sysadm	1.4	p_users[i].id + 1,
179	sysadm	1.3	p_users[i].user_info.username,
180			BBS_username_max_len - str_length(p_users[i].user_info.username, 1),
181			"",
182			p_users[i].user_info.nickname,
183			BBS_nickname_max_len / 2 - str_length(p_users[i].user_info.nickname, 1),
184			"",
185			str_time_login,
186			8 - str_length(str_time_login, 1),
187			"",
188			str_time_idle,
189			6 - str_length(str_time_idle, 1),
190			"",
191			p_action_title);
192	sysadm	1.1	}
193
194			return 0;
195			}
196
197			static enum select_cmd_t user_list_select(int total_page, int item_count, int p_page_id, int p_selected_index)
198			{
199			int old_page_id = *p_page_id;
200			int old_selected_index = *p_selected_index;
201			int ch;
202
203			if (item_count > 0 && *p_selected_index >= 0)
204			{
205			moveto(4 + *p_selected_index, 1);
206			outc('>');
207			iflush();
208			}
209
210			while (!SYS_server_exit)
211			{
212			ch = igetch(100);
213
214			if (ch != KEY_NULL && ch != KEY_TIMEOUT)
215			{
216			BBS_last_access_tm = time(NULL);
217			}
218
219			switch (ch)
220			{
221			case KEY_NULL: // broken pipe
222			log_error("KEY_NULL\n");
223			case KEY_ESC:
224			case KEY_LEFT:
225			return EXIT_LIST; // exit list
226			case KEY_TIMEOUT:
227	sysadm	1.22	if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
228	sysadm	1.1	{
229			log_error("User input timeout\n");
230			return EXIT_LIST; // exit list
231			}
232			continue;
233			case CR:
234			case KEY_RIGHT:
235			if (item_count > 0)
236			{
237			return VIEW_USER;
238			}
239			break;
240			case KEY_HOME:
241			*p_page_id = 0;
242			case 'P':
243			case KEY_PGUP:
244			*p_selected_index = 0;
245			case 'k':
246			case KEY_UP:
247			if (*p_selected_index <= 0)
248			{
249			if (*p_page_id > 0)
250			{
251			(*p_page_id)--;
252			*p_selected_index = BBS_user_limit_per_page - 1;
253			}
254			else if (ch == KEY_UP \|\| ch == 'k') // Rotate to the tail of list
255			{
256			if (total_page > 0)
257			{
258			*p_page_id = total_page - 1;
259			}
260			if (item_count > 0)
261			{
262			*p_selected_index = item_count - 1;
263			}
264			}
265			}
266			else
267			{
268			(*p_selected_index)--;
269			}
270			break;
271			case '$':
272			case KEY_END:
273			if (total_page > 0)
274			{
275			*p_page_id = total_page - 1;
276			}
277			case 'N':
278			case KEY_PGDN:
279			if (item_count > 0)
280			{
281			*p_selected_index = item_count - 1;
282			}
283			case 'j':
284			case KEY_DOWN:
285			if (*p_selected_index + 1 >= item_count) // next page
286			{
287			if (*p_page_id + 1 < total_page)
288			{
289			(*p_page_id)++;
290			*p_selected_index = 0;
291			}
292			else if (ch == KEY_DOWN \|\| ch == 'j') // Rotate to the head of list
293			{
294			*p_page_id = 0;
295			*p_selected_index = 0;
296			}
297			}
298			else
299			{
300			(*p_selected_index)++;
301			}
302			break;
303	sysadm	1.14	case 's':
304			return SEARCH_USER;
305	sysadm	1.4	case KEY_F5:
306			return REFRESH_LIST;
307	sysadm	1.1	case 'h':
308			return SHOW_HELP;
309			default:
310			break;
311			}
312
313			if (old_page_id != *p_page_id)
314			{
315			return CHANGE_PAGE;
316			}
317
318			if (item_count > 0 && old_selected_index != *p_selected_index)
319			{
320			if (old_selected_index >= 0)
321			{
322			moveto(4 + old_selected_index, 1);
323			outc(' ');
324			}
325			if (*p_selected_index >= 0)
326			{
327			moveto(4 + *p_selected_index, 1);
328			outc('>');
329			}
330			iflush();
331
332			old_selected_index = *p_selected_index;
333			}
334			}
335
336			return EXIT_LIST;
337			}
338
339	sysadm	1.3	int user_list_display(int online_user)
340	sysadm	1.1	{
341			char page_info_str[LINE_BUFFER_LEN];
342			USER_INFO users[BBS_user_limit_per_page];
343	sysadm	1.3	USER_ONLINE_INFO online_users[BBS_user_limit_per_page];
344	sysadm	1.7	int user_count = 0;
345			int page_count = 0;
346	sysadm	1.1	int page_id = 0;
347			int selected_index = 0;
348	sysadm	1.7	int ret = 0;
349	sysadm	1.1
350	sysadm	1.3	user_list_draw_screen(online_user);
351	sysadm	1.1
352	sysadm	1.3	if (online_user)
353			{
354			ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
355			if (ret < 0)
356			{
357			log_error("query_user_online_list(page_id=%d) error\n", page_id);
358			return -2;
359			}
360			}
361			else
362	sysadm	1.1	{
363	sysadm	1.3	ret = query_user_list(page_id, users, &user_count, &page_count);
364			if (ret < 0)
365			{
366			log_error("query_user_list(page_id=%d) error\n", page_id);
367			return -2;
368			}
369	sysadm	1.1	}
370
371			if (user_count == 0) // empty list
372			{
373			selected_index = 0;
374			}
375
376			while (!SYS_server_exit)
377			{
378	sysadm	1.3	if (online_user)
379			{
380			ret = user_online_list_draw_items(page_id, online_users, user_count);
381			if (ret < 0)
382			{
383			log_error("user_online_list_draw_items(page_id=%d) error\n", page_id);
384			return -3;
385			}
386			}
387			else
388	sysadm	1.1	{
389	sysadm	1.3	ret = user_list_draw_items(page_id, users, user_count);
390			if (ret < 0)
391			{
392			log_error("user_list_draw_items(page_id=%d) error\n", page_id);
393			return -3;
394			}
395	sysadm	1.1	}
396
397			snprintf(page_info_str, sizeof(page_info_str),
398			"\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
399			page_id + 1, MAX(page_count, 1));
400
401			show_bottom(page_info_str);
402			iflush();
403
404	sysadm	1.3	if (user_online_update(online_user ? "USER_ONLINE" : "USER_LIST") < 0)
405	sysadm	1.1	{
406	sysadm	1.3	log_error("user_online_update(%s) error\n",
407			(online_user ? "USER_ONLINE" : "USER_LIST"));
408	sysadm	1.1	}
409
410			ret = user_list_select(page_count, user_count, &page_id, &selected_index);
411			switch (ret)
412			{
413			case EXIT_LIST:
414			return 0;
415	sysadm	1.4	case REFRESH_LIST:
416	sysadm	1.1	case CHANGE_PAGE:
417	sysadm	1.4	if (online_user)
418			{
419			ret = query_user_online_list(page_id, online_users, &user_count, &page_count);
420			if (ret < 0)
421			{
422			log_error("query_user_online_list(page_id=%d) error\n", page_id);
423			return -2;
424			}
425			}
426			else
427	sysadm	1.1	{
428	sysadm	1.4	ret = query_user_list(page_id, users, &user_count, &page_count);
429			if (ret < 0)
430			{
431			log_error("query_user_list(page_id=%d) error\n", page_id);
432			return -2;
433			}
434	sysadm	1.1	}
435
436			if (user_count == 0) // empty list
437			{
438			selected_index = 0;
439			}
440			else if (selected_index >= user_count)
441			{
442			selected_index = user_count - 1;
443			}
444			break;
445			case VIEW_USER:
446	sysadm	1.12	user_info_display(online_user ? &(online_users[selected_index].user_info) : &(users[selected_index]));
447	sysadm	1.3	user_list_draw_screen(online_user);
448	sysadm	1.1	break;
449	sysadm	1.14	case SEARCH_USER:
450			user_list_search();
451			user_list_draw_screen(online_user);
452			break;
453	sysadm	1.1	case SHOW_HELP:
454			// Display help information
455			display_file(DATA_READ_HELP, 1);
456	sysadm	1.3	user_list_draw_screen(online_user);
457	sysadm	1.1	break;
458			default:
459			log_error("Unknown command %d\n", ret);
460			}
461			}
462
463			return 0;
464			}
465	sysadm	1.14
466			int user_list_search(void)
467			{
468			const int users_per_line = 5;
469			const int max_user_lines = 20;
470			const int max_user_cnt = users_per_line * max_user_lines + 1;
471
472			char username[BBS_username_max_len + 1];
473			int32_t uid_list[max_user_cnt];
474			char username_list[max_user_cnt][BBS_username_max_len + 1];
475			int ret;
476			int i;
477			USER_INFO user_info;
478	sysadm	1.18	char user_intro[BBS_user_intro_max_len + 1];
479	sysadm	1.14	int ok;
480	sysadm	1.19	int ch;
481	sysadm	1.14
482			username[0] = '\0';
483
484			clearscr();
485
486			while (!SYS_server_exit)
487			{
488	sysadm	1.19	clrline(3, SCREEN_ROWS);
489	sysadm	1.14	get_data(2, 1, "查找谁: ", username, sizeof(username), BBS_username_max_len);
490
491			if (username[0] == '\0')
492			{
493			return 0;
494			}
495
496			// Verify format
497			for (i = 0, ok = 1; ok && username[i] != '\0'; i++)
498			{
499	sysadm	1.17	if (!(isalpha(username[i]) \|\| (i > 0 && (isdigit(username[i]) \|\| username[i] == '_'))))
500	sysadm	1.14	{
501			ok = 0;
502			}
503			}
504	sysadm	1.17	if (ok && i > BBS_username_max_len)
505	sysadm	1.14	{
506			ok = 0;
507			}
508			if (!ok)
509			{
510			moveto(3, 1);
511			clrtoeol();
512			prints("用户名格式非法");
513			continue;
514			}
515
516			clrline(3, SCREEN_ROWS);
517
518			ret = query_user_info_by_username(username, max_user_cnt, uid_list, username_list);
519
520			if (ret < 0)
521			{
522			log_error("query_user_info_by_username(%s) error\n", username);
523			return -1;
524			}
525			else if (ret > 1)
526			{
527	sysadm	1.19	for (i = 0; i < MIN(ret, users_per_line * max_user_lines); i++)
528			{
529			moveto(4 + i / users_per_line, 3 + i % users_per_line * (BBS_username_max_len + 3));
530			prints("%s", username_list[i]);
531			}
532			moveto(SCREEN_ROWS, 1);
533			if (ret > users_per_line * max_user_lines)
534			{
535			prints("还有更多...");
536			}
537
538	sysadm	1.14	moveto(3, 1);
539	sysadm	1.19	prints("存在多个匹配的用户，按\033[1;33mEnter\033[m精确查找");
540	sysadm	1.14	iflush();
541
542	sysadm	1.22	ch = igetch_t(BBS_max_user_idle_time);
543	sysadm	1.19	switch (ch)
544	sysadm	1.14	{
545			case KEY_NULL:
546			case KEY_TIMEOUT:
547	sysadm	1.15	return -1;
548			case KEY_ESC:
549	sysadm	1.14	return 0;
550	sysadm	1.19	case CR:
551	sysadm	1.14	ret = (strcasecmp(username_list[0], username) == 0 ? 1 : 0);
552			break;
553	sysadm	1.19	default:
554			i = (int)strnlen(username, sizeof(username) - 1);
555			if (i + 1 <= BBS_username_max_len && (isalnum((char)ch) \|\| ch == '_'))
556	sysadm	1.14	{
557	sysadm	1.19	username[i] = (char)ch;
558			username[i + 1] = '\0';
559	sysadm	1.14	}
560			continue;
561			}
562			}
563
564	sysadm	1.19	clrline(3, SCREEN_ROWS);
565	sysadm	1.14	if (ret == 0)
566			{
567			moveto(3, 1);
568			prints("没有找到符合条件的用户");
569	sysadm	1.16	press_any_key();
570			return 0;
571	sysadm	1.14	}
572			else // ret == 1
573			{
574			if (query_user_info_by_uid(uid_list[0], &user_info, user_intro, sizeof(user_intro)) <= 0)
575			{
576			log_error("query_user_info_by_uid(uid=%d) error\n", uid_list[0]);
577			return -2;
578			}
579			else if (user_info_display(&user_info) < 0)
580			{
581			log_error("user_info_display(uid=%d) error\n", uid_list[0]);
582			return -3;
583			}
584			return 1;
585			}
586			}
587
588			return 0;
589			}
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