--- lbbs/src/screen.c 2025/05/31 01:58:22 1.84 +++ lbbs/src/screen.c 2025/07/20 02:04:21 1.106 @@ -14,33 +14,31 @@ * * ***************************************************************************/ -#include "screen.h" #include "bbs.h" #include "common.h" -#include "str_process.h" -#include "log.h" -#include "io.h" +#include "editor.h" #include "file_loader.h" -#include +#include "io.h" +#include "log.h" +#include "login.h" +#include "screen.h" +#include "str_process.h" #include -#include -#include #include -#include -#include +#include +#include +#include +#include #include +#include #include - -#define _POSIX_C_SOURCE 200809L -#include +#include #define ACTIVE_BOARD_HEIGHT 8 -#define STR_TOP_LEFT_MAX_LEN 40 -#define STR_TOP_MIDDLE_MAX_LEN 20 -#define STR_TOP_RIGHT_MAX_LEN 20 - -#define MSG_EXT_MAX_LEN 200 +#define STR_TOP_LEFT_MAX_LEN 80 +#define STR_TOP_MIDDLE_MAX_LEN 40 +#define STR_TOP_RIGHT_MAX_LEN 40 void moveto(int row, int col) { @@ -88,7 +86,7 @@ int press_any_key() moveto(SCREEN_ROWS, 0); clrtoeol(); - prints(" \033[1;33m按任意键继续...\033[0;37m"); + prints(" \033[1;33m鎸変换鎰忛敭缁х画...\033[0;37m"); iflush(); return igetch_t(MIN(MAX_DELAY_TIME, 60)); @@ -111,95 +109,146 @@ void set_input_echo(int echo) } } -static int _str_input(char *buffer, int buf_size, int echo_mode) +static int _str_input(char *buffer, int buf_size, int max_display_len, int echo_mode) { - int c; + int ch; int offset = 0; - int hz = 0; + int eol; + int display_len; + char input_str[4]; + int str_len = 0; + char c; buffer[buf_size - 1] = '\0'; - for (offset = 0; offset < buf_size - 1 && buffer[offset] != '\0'; offset++) - ; + offset = split_line(buffer, max_display_len, &eol, &display_len, 0); igetch_reset(); while (!SYS_server_exit) { - c = igetch_t(MIN(MAX_DELAY_TIME, 60)); + ch = igetch_t(MIN(MAX_DELAY_TIME, 60)); - if (c == CR) + if (ch == CR) { igetch_reset(); break; } - else if (c == KEY_TIMEOUT || c == KEY_NULL) // timeout or broken pipe + else if (ch == KEY_TIMEOUT || ch == KEY_NULL) // timeout or broken pipe { return -1; } - else if (c == LF || c == '\0') + else if (ch == LF || ch == '\0') { continue; } - else if (c == BACKSPACE) + else if (ch == BACKSPACE) { if (offset > 0) { offset--; - if (buffer[offset] < 0 || buffer[offset] > 127) + if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 { - prints("\033[D \033[D"); - offset--; - if (offset < 0) // should not happen + while (offset > 0 && (buffer[offset] & 0b11000000) != 0b11000000) { - log_error("Offset of buffer is negative\n"); - offset = 0; + offset--; } + display_len--; + prints("\033[D \033[D"); } buffer[offset] = '\0'; + display_len--; prints("\033[D \033[D"); iflush(); } continue; } - else if (c > 255 || iscntrl(c)) + else if (ch > 255 || iscntrl(ch)) { continue; } - else if (c > 127 && c <= 255) + else if ((ch & 0xff80) == 0x80) // head of multi-byte character { - if (!hz && offset + 2 > buf_size - 1) // No enough space for Chinese character + str_len = 0; + c = (char)(ch & 0b11110000); + while (c & 0b10000000) + { + input_str[str_len] = (char)(ch - 256); + str_len++; + c = (c & 0b01111111) << 1; + + if ((c & 0b10000000) == 0) // Input completed + { + break; + } + + // Expect additional bytes of input + ch = igetch(100); // 0.1 second + if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input + { +#ifdef _DEBUG + log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len); +#endif + str_len = 0; + break; + } + } + + if (str_len == 0) // Incomplete input + { + continue; + } + + if (offset + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character { - igetch(0); // Ignore 1 character outc('\a'); iflush(); continue; } - hz = (!hz); - } - if (offset + 1 > buf_size - 1) - { - outc('\a'); - iflush(); - continue; + memcpy(buffer + offset, input_str, (size_t)str_len); + offset += str_len; + buffer[offset] = '\0'; + display_len += 2; + + switch (echo_mode) + { + case DOECHO: + prints(input_str); + break; + case NOECHO: + prints("**"); + break; + } } + else if (ch >= 32 && ch < 127) // Printable character + { + if (offset + 1 > buf_size - 1 || display_len + 1 > max_display_len) + { + outc('\a'); + iflush(); + continue; + } - buffer[offset++] = (char)c; - buffer[offset] = '\0'; + buffer[offset++] = (char)ch; + buffer[offset] = '\0'; + display_len++; - switch (echo_mode) - { - case DOECHO: - outc((char)c); - break; - case NOECHO: - outc('*'); - break; + switch (echo_mode) + { + case DOECHO: + outc((char)ch); + break; + case NOECHO: + outc('*'); + break; + } } - if (!hz) + else // Invalid character { - iflush(); + continue; } + + iflush(); } return offset; @@ -211,7 +260,7 @@ int str_input(char *buffer, int buf_size buffer[0] = '\0'; - len = _str_input(buffer, buf_size, echo_mode); + len = _str_input(buffer, buf_size, buf_size, echo_mode); prints("\r\n"); iflush(); @@ -219,7 +268,7 @@ int str_input(char *buffer, int buf_size return len; }; -int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int echo_mode) +int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int max_display_len, int echo_mode) { int len; @@ -228,31 +277,33 @@ int get_data(int row, int col, char *pro prints("%s", buffer); iflush(); - len = _str_input(buffer, buf_size, echo_mode); + len = _str_input(buffer, buf_size, max_display_len, echo_mode); return len; } -int display_data(const void *p_data, long line_total, const long *p_line_offsets, int begin_line, int eof_exit, +int display_data(const void *p_data, long display_line_total, const long *p_line_offsets, int eof_exit, display_data_key_handler key_handler, const char *help_filename) { static int show_help = 1; char buffer[LINE_BUFFER_LEN]; - char msg_ext[MSG_EXT_MAX_LEN]; + DISPLAY_CTX ctx; int ch = 0; - int input_ok, line, max_lines; + int input_ok; + const int screen_begin_row = 1; + const int screen_row_total = SCREEN_ROWS - screen_begin_row; + int output_current_row = screen_begin_row; + int output_end_row = SCREEN_ROWS - 1; long int line_current = 0; long int len; long int percentile; int loop; int eol, display_len; - clrline(begin_line, SCREEN_ROWS); - line = begin_line; - max_lines = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); // update msg_ext with extended key handler - if (key_handler(&ch, msg_ext, sizeof(msg_ext)) != 0) + if (key_handler(&ch, &ctx) != 0) { return ch; } @@ -260,7 +311,7 @@ int display_data(const void *p_data, lon loop = 1; while (!SYS_server_exit && loop) { - if (eof_exit > 0 && line_current >= line_total && line_total <= SCREEN_ROWS - 2) + if (eof_exit > 0 && line_current >= display_line_total && display_line_total <= screen_row_total) { if (eof_exit == 1) { @@ -275,24 +326,32 @@ int display_data(const void *p_data, lon break; } - if (line_current >= line_total || line >= max_lines) + if (line_current >= display_line_total || output_current_row > output_end_row) { - if (line_current - (line - 1) + (SCREEN_ROWS - 2) < line_total) + ctx.reach_begin = (line_current < output_current_row ? 1 : 0); + + if (line_current - (output_current_row - screen_begin_row) + screen_row_total < display_line_total) { - percentile = (line_current - (line - 1) + (SCREEN_ROWS - 2)) * 100 / line_total; + percentile = (line_current - (output_current_row - screen_begin_row) + screen_row_total) * 100 / display_line_total; + ctx.reach_end = 0; } else { percentile = 100; + ctx.reach_end = 1; } + ctx.line_top = line_current - (output_current_row - screen_begin_row) + 1; + ctx.line_bottom = MIN(line_current - (output_current_row - screen_begin_row) + screen_row_total, display_line_total); + snprintf(buffer, sizeof(buffer), - "\033[1;44;33m第\033[32m%ld\033[33m-\033[32m%ld\033[33m行 (\033[32m%ld%%\033[33m) %s", - line_current - (line - 1) + 1, - MIN(line_current - (line - 1) + (SCREEN_ROWS - 2), line_total), - percentile, msg_ext); + "\033[1;44;33m绗琝033[32m%ld\033[33m-\033[32m%ld\033[33m琛 (\033[32m%ld%%\033[33m) %s", + ctx.line_top, + ctx.line_bottom, + percentile, + ctx.msg); - len = split_line(buffer, SCREEN_COLS, &eol, &display_len); + len = split_line(buffer, SCREEN_COLS, &eol, &display_len, 1); for (; display_len < SCREEN_COLS; display_len++) { buffer[len++] = ' '; @@ -311,7 +370,7 @@ int display_data(const void *p_data, lon input_ok = 1; // extended key handler - if (key_handler(&ch, msg_ext, sizeof(msg_ext)) != 0) + if (key_handler(&ch, &ctx) != 0) { goto cleanup; } @@ -322,78 +381,79 @@ int display_data(const void *p_data, lon case KEY_TIMEOUT: goto cleanup; case KEY_HOME: - if (line_current - line < 0) // Reach top + if (line_current - output_current_row < 0) // Reach begin { break; } line_current = 0; - line = begin_line; - max_lines = SCREEN_ROWS - 1; - clrline(begin_line, SCREEN_ROWS); + output_current_row = screen_begin_row; + output_end_row = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); break; case KEY_END: - if (line_total < SCREEN_ROWS - 2) + if (display_line_total < screen_row_total) { break; } - line_current = line_total - (SCREEN_ROWS - 2); - line = begin_line; - max_lines = SCREEN_ROWS - 1; - clrline(begin_line, SCREEN_ROWS); + line_current = display_line_total - screen_row_total; + output_current_row = screen_begin_row; + output_end_row = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); break; case KEY_UP: - if (line_current - line < 0) // Reach top + if (line_current - output_current_row < 0) // Reach begin { break; } - line_current -= line; - line = begin_line; - // max_lines = begin_line + 1; + line_current -= output_current_row; + output_current_row = screen_begin_row; + // screen_end_line = screen_begin_line; // prints("\033[T"); // Scroll down 1 line - max_lines = SCREEN_ROWS - 1; // Legacy Fterm only works with this line + output_end_row = SCREEN_ROWS - 1; // Legacy Fterm only works with this line break; case CR: igetch_reset(); case KEY_SPACE: case KEY_DOWN: - if (line_current + ((SCREEN_ROWS - 2) - (line - 1)) >= line_total) // Reach bottom + if (line_current + (screen_row_total - (output_current_row - screen_begin_row)) >= display_line_total) // Reach end { break; } - line_current += ((SCREEN_ROWS - 2) - (line - 1)); - line = SCREEN_ROWS - 2; - max_lines = SCREEN_ROWS - 1; + line_current += (screen_row_total - (output_current_row - screen_begin_row)); + output_current_row = screen_row_total; + output_end_row = SCREEN_ROWS - 1; moveto(SCREEN_ROWS, 0); clrtoeol(); - prints("\033[S"); // Scroll up 1 line + // prints("\033[S"); // Scroll up 1 line + prints("\n"); // Legacy Cterm only works with this line break; case KEY_PGUP: - if (line_current - line < 0) // Reach top + if (line_current - output_current_row < 0) // Reach begin { break; } - line_current -= ((SCREEN_ROWS - 3) + (line - 1)); + line_current -= ((screen_row_total - 1) + (output_current_row - screen_begin_row)); if (line_current < 0) { line_current = 0; } - line = begin_line; - max_lines = SCREEN_ROWS - 1; - clrline(begin_line, SCREEN_ROWS); + output_current_row = screen_begin_row; + output_end_row = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); break; case KEY_PGDN: - if (line_current + (SCREEN_ROWS - 2) - (line - 1) >= line_total) // Reach bottom + if (line_current + screen_row_total - (output_current_row - screen_begin_row) >= display_line_total) // Reach end { break; } - line_current += (SCREEN_ROWS - 3) - (line - 1); - if (line_current + SCREEN_ROWS - 2 > line_total) // No enough lines to display + line_current += (screen_row_total - 1) - (output_current_row - screen_begin_row); + if (line_current + screen_row_total > display_line_total) // No enough lines to display { - line_current = line_total - (SCREEN_ROWS - 2); + line_current = display_line_total - screen_row_total; } - line = begin_line; - max_lines = SCREEN_ROWS - 1; - clrline(begin_line, SCREEN_ROWS); + output_current_row = screen_begin_row; + output_end_row = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); break; case KEY_ESC: case KEY_LEFT: @@ -404,17 +464,16 @@ int display_data(const void *p_data, lon { break; } - // Display help information show_help = 0; - display_file(help_filename, begin_line, 1); + display_file(help_filename, 1); show_help = 1; case KEY_F5: // Refresh after display help information - line_current -= (line - 1); - line = begin_line; - max_lines = SCREEN_ROWS - 1; - clrline(begin_line, SCREEN_ROWS); + line_current -= (output_current_row - screen_begin_row); + output_current_row = screen_begin_row; + output_end_row = SCREEN_ROWS - 1; + clrline(output_current_row, SCREEN_ROWS); break; case 0: // Refresh bottom line break; @@ -423,53 +482,56 @@ int display_data(const void *p_data, lon break; } - BBS_last_access_tm = time(0); + BBS_last_access_tm = time(NULL); } continue; } len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; - if (len >= LINE_BUFFER_LEN) + if (len >= sizeof(buffer)) { - log_error("buffer overflow: len=%ld(%ld - %ld) line=%ld \n", + log_error("Buffer overflow: len=%ld(%ld - %ld) line=%ld \n", len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); - len = LINE_BUFFER_LEN - 1; + len = sizeof(buffer) - 1; + } + else if (len < 0) + { + log_error("Incorrect line offsets: len=%ld(%ld - %ld) line=%ld \n", + len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); + len = 0; } memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len); buffer[len] = '\0'; - moveto(line, 0); + moveto(output_current_row, 0); clrtoeol(); prints("%s", buffer); line_current++; - line++; + output_current_row++; } cleanup: return ch; } -static int display_file_key_handler(int *key, char *msg, size_t msg_len) +static int display_file_key_handler(int *p_key, DISPLAY_CTX *p_ctx) { - switch (*key) + switch (*p_key) { case 0: // Set msg - snprintf(msg, msg_len, - "| 返回[\033[32m←\033[33m,\033[32mESC\033[33m] │ " - "移动[\033[32m↑\033[33m/\033[32m↓\033[33m/\033[32mPgUp\033[33m/\033[32mPgDn\033[33m] │ " - "帮助[\033[32mh\033[33m] |"); + snprintf(p_ctx->msg, sizeof(p_ctx->msg), + "| 杩斿洖[\033[32m鈫怽033[33m,\033[32mESC\033[33m] | " + "绉诲姩[\033[32m鈫慭033[33m/\033[32m鈫揬033[33m/\033[32mPgUp\033[33m/\033[32mPgDn\033[33m] | " + "甯姪[\033[32mh\033[33m] |"); break; - case 'H': - *key = 'h'; - return 0; } return 0; } -int display_file(const char *filename, int begin_line, int eof_exit) +int display_file(const char *filename, int eof_exit) { int ret; const void *p_shm; @@ -484,7 +546,12 @@ int display_file(const char *filename, i return KEY_NULL; } - ret = display_data(p_data, line_total, p_line_offsets, begin_line, eof_exit, display_file_key_handler, DATA_READ_HELP); + if (user_online_update("VIEW_FILE") < 0) + { + log_error("user_online_update(VIEW_FILE) error\n"); + } + + ret = display_data(p_data, line_total, p_line_offsets, eof_exit, display_file_key_handler, DATA_READ_HELP); if (detach_file_shm(p_shm) < 0) { @@ -507,23 +574,24 @@ int show_top(const char *str_left, const strncpy(str_left_f, str_left, sizeof(str_left_f) - 1); str_left_f[sizeof(str_left_f) - 1] = '\0'; - len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN, &eol, &str_left_len); + len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN / 2, &eol, &str_left_len, 1); str_left_f[len] = '\0'; strncpy(str_middle_f, str_middle, sizeof(str_middle_f) - 1); str_middle_f[sizeof(str_middle_f) - 1] = '\0'; - len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN, &eol, &str_middle_len); + len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN / 2, &eol, &str_middle_len, 1); str_middle_f[len] = '\0'; strncpy(str_right_f, str_right, sizeof(str_right_f) - 1); str_right_f[sizeof(str_right_f) - 1] = '\0'; - len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN, &eol, &str_right_len); + len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN / 2, &eol, &str_right_len, 1); str_right_f[len] = '\0'; moveto(1, 0); clrtoeol(); - prints("\033[1;44;33m%s\033[37m%*s\033[33m%*s\033[m", - str_left_f, 44 - str_left_len, str_middle_f, 36, str_right_f); + prints("\033[1;44;33m%s\033[37m%*s%s\033[33m%*s%s\033[m", + str_left_f, 44 - str_left_len - str_middle_len, "", + str_middle_f, 36 - str_right_len, "", str_right_f); return 0; } @@ -538,6 +606,7 @@ int show_bottom(const char *msg) int msg_len; int len; int len_username; + char str_tm_online[LINE_BUFFER_LEN]; get_time_str(str_time, sizeof(str_time)); @@ -547,21 +616,31 @@ int show_bottom(const char *msg) { strncpy(msg_f, msg, sizeof(msg_f) - 1); msg_f[sizeof(msg_f) - 1] = '\0'; - len = split_line(msg_f, 23, &eol, &msg_len); + len = split_line(msg_f, 23, &eol, &msg_len, 1); msg_f[len] = '\0'; } len_username = (int)strnlen(BBS_username, sizeof(BBS_username)); - time_online = time(0) - BBS_login_tm; + time_online = time(NULL) - BBS_login_tm; tm_online = gmtime(&time_online); + if (tm_online->tm_mday > 1) + { + snprintf(str_tm_online, sizeof(str_tm_online), + "\033[36m%2d\033[33m澶‐033[36m%2d\033[33m鏃", + tm_online->tm_mday - 1, tm_online->tm_hour); + } + else + { + snprintf(str_tm_online, sizeof(str_tm_online), + "\033[36m%2d\033[33m鏃禱033[36m%2d\033[33m鍒", + tm_online->tm_hour, tm_online->tm_min); + } moveto(SCREEN_ROWS, 0); clrtoeol(); - prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m帐号[\033[36m%s\033[33m]" - "[\033[36m%1d\033[33m天\033[36m%2d\033[33m时\033[36m%2d\033[33m分]\033[m", - str_time, msg_f, 35 - msg_len - len_username, "", BBS_username, - tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min); + prints("\033[1;44;33m鏃堕棿[\033[36m%s\033[33m]%s%*s \033[33m甯愬彿[\033[36m%s\033[33m][%s\033[33m]\033[m", + str_time, msg_f, 38 - msg_len - len_username, "", BBS_username, str_tm_online); return 0; } @@ -590,10 +669,10 @@ int show_active_board() } } - if (time(0) - t_last_show >= 10) + if (time(NULL) - t_last_show >= 10) { line_last = line_current; - t_last_show = time(0); + t_last_show = time(NULL); } else {