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/***************************************************************************
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article_del.c - description
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-------------------
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copyright : (C) 2004-2025 by Leaflet
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email : leaflet@leafok.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "article_del.h"
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#include "database.h"
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#include "io.h"
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#include "log.h"
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#include "screen.h"
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#include "user_priv.h"
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#include <ctype.h>
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#include <stdlib.h>
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int article_del(const SECTION_LIST *p_section, const ARTICLE *p_article)
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{
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MYSQL *db = NULL;
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MYSQL_RES *rs = NULL;
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MYSQL_ROW row;
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char sql[SQL_BUFFER_LEN];
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int ret = 0;
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int ch;
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int article_visible = 0;
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int article_excerption = 0;
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int exp_change = 0;
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if (p_section == NULL || p_article == NULL)
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{
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log_error("NULL pointer error\n");
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}
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if (p_article->excerption) // Delete is not allowed
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{
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clearscr();
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moveto(1, 1);
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prints("该文章无法被删除，请联系版主。");
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press_any_key();
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return 0;
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}
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clearscr();
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moveto(1, 1);
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prints("真的要删除文章？(Y)是, (N)否 [N]: ");
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iflush();
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for (ch = 0; !SYS_server_exit; ch = igetch_t(MAX_DELAY_TIME))
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{
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switch (toupper(ch))
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{
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case KEY_NULL:
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case KEY_TIMEOUT:
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goto cleanup;
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case CR:
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igetch_reset();
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case KEY_ESC:
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case 'N':
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return 0;
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case 'Y':
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break;
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default: // Invalid selection
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continue;
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}
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break;
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}
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if (SYS_server_exit) // Do not save data on shutdown
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{
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goto cleanup;
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}
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db = db_open();
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if (db == NULL)
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{
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log_error("db_open() error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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// Begin transaction
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if (mysql_query(db, "SET autocommit=0") != 0)
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{
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log_error("SET autocommit=0 error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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if (mysql_query(db, "BEGIN") != 0)
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{
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log_error("Begin transaction error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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snprintf(sql, sizeof(sql),
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"SELECT visible, excerption FROM bbs WHERE AID = %d FOR UPDATE",
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p_article->aid);
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if (mysql_query(db, sql) != 0)
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{
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log_error("Query article status error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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if ((rs = mysql_use_result(db)) == NULL)
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{
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log_error("Get article status data failed\n");
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ret = -1;
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goto cleanup;
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}
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if ((row = mysql_fetch_row(rs)))
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{
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article_visible = atoi(row[0]);
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article_excerption = atoi(row[1]);
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}
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mysql_free_result(rs);
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rs = NULL;
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if (!article_visible) // Already deleted
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{
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mysql_close(db);
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db = NULL;
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clearscr();
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moveto(1, 1);
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prints("该文章已被删除，请稍后刷新列表。");
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press_any_key();
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goto cleanup;
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}
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if (article_excerption) // Delete is not allowed
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{
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clearscr();
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moveto(1, 1);
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prints("该文章无法被删除，请联系版主。");
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press_any_key();
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goto cleanup;
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}
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// Update article(s)
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snprintf(sql, sizeof(sql),
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"UPDATE bbs SET visible = 0, reply_count = 0, m_del = %d "
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"WHERE (AID = %d OR TID = %d) AND visible",
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(p_article->uid == BBS_priv.uid ? 0 : 1),
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p_article->aid, p_article->aid);
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if (mysql_query(db, sql) != 0)
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{
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log_error("Update article status error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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// Update exp
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if (p_article->uid == BBS_priv.uid)
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{
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exp_change = (p_article->tid == 0 ? -20 : -5);
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}
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else
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{
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exp_change = (p_article->tid == 0 ? -50 : -15);
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}
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snprintf(sql, sizeof(sql),
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"UPDATE user_pubinfo SET exp = exp + %d WHERE UID = %d",
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exp_change, BBS_priv.uid);
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if (mysql_query(db, sql) != 0)
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{
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log_error("Update exp error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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// Add log
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snprintf(sql, sizeof(sql),
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"INSERT INTO bbs_article_op(AID, UID, type, op_dt, op_ip)"
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"VALUES(%d, %d, '%c', NOW(), '%s')",
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p_article->aid, BBS_priv.uid,
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(p_article->uid == BBS_priv.uid ? 'D' : 'X'),
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hostaddr_client);
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if (mysql_query(db, sql) != 0)
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{
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log_error("Add log error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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// Set reply count
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if (p_article->tid != 0)
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{
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snprintf(sql, sizeof(sql),
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"UPDATE bbs SET reply_count = reply_count - 1 WHERE AID = %d",
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p_article->tid);
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if (mysql_query(db, sql) != 0)
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{
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log_error("Update article error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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}
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// Commit transaction
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if (mysql_query(db, "COMMIT") != 0)
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{
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log_error("Commit transaction error: %s\n", mysql_error(db));
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ret = -1;
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goto cleanup;
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}
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mysql_close(db);
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db = NULL;
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clearscr();
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moveto(1, 1);
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prints("删除成功，请在%d秒后刷新列表。", BBS_section_list_load_interval);
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press_any_key();
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ret = 1; // Success
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cleanup:
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mysql_free_result(rs);
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mysql_close(db);
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return ret;
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}
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