358 lines
7.6 KiB
Go
358 lines
7.6 KiB
Go
package database
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import (
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"database/sql"
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"errors"
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"io/fs"
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"os"
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"path"
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"time"
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"github.com/dominicf2001/comfychan/internal/util"
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)
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type Queryer interface {
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Exec(query string, args ...any) (sql.Result, error)
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Query(query string, args ...any) (*sql.Rows, error)
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QueryRow(query string, args ...any) *sql.Row
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}
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func GetBoards(db *sql.DB) ([]Board, error) {
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rows, err := db.Query(`
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SELECT id, name, slug, tag
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FROM boards ORDER BY slug`)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var result []Board
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for rows.Next() {
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var b Board
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err := rows.Scan(&b.Id, &b.Name, &b.Slug, &b.Tag)
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if err != nil {
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return nil, err
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}
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result = append(result, b)
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}
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return result, rows.Err()
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}
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func GetBoard(db *sql.DB, slug string) (Board, error) {
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row := db.QueryRow(`
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SELECT id, name, slug, tag
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FROM boards
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WHERE slug = ?`, slug)
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var result Board
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err := row.Scan(&result.Id, &result.Name, &result.Slug, &result.Tag)
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if err != nil {
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return Board{}, err
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}
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return result, row.Err()
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}
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func GetThreads(db *sql.DB, boardSlug string) ([]Thread, error) {
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rows, err := db.Query(`
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SELECT id, board_slug, subject, created_at, bumped_at
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FROM threads
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WHERE board_slug = ?`, boardSlug)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var result []Thread
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for rows.Next() {
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var t Thread
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err := rows.Scan(&t.Id, &t.BoardSlug, &t.Subject, &t.CreatedAt, &t.BumpedAt)
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if err != nil {
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return nil, err
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}
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result = append(result, t)
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}
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return result, rows.Err()
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}
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func GetThread(db *sql.DB, threadId int) (Thread, error) {
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row := db.QueryRow(`
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SELECT id, board_slug, subject, created_at, bumped_at
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FROM threads
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WHERE id = ?`, threadId)
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var thread Thread
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err := row.Scan(&thread.Id, &thread.BoardSlug, &thread.Subject, &thread.CreatedAt, &thread.BumpedAt)
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if err != nil {
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return Thread{}, err
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}
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return thread, row.Err()
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}
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func GetPosts(db *sql.DB, threadId int) ([]Post, error) {
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rows, err := db.Query(`
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SELECT id, thread_id, author, body, created_at, media_path,
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ip_hash, number, thumb_path, banned
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FROM posts
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WHERE thread_id = ?`, threadId)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var result []Post
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for rows.Next() {
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var p Post
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err := rows.Scan(
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&p.Id, &p.ThreadId, &p.Author, &p.Body, &p.CreatedAt, &p.MediaPath,
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&p.IpHash, &p.Number, &p.ThumbPath, &p.Banned)
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if err != nil {
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return nil, err
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}
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result = append(result, p)
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}
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return result, rows.Err()
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}
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func GetPost(db *sql.DB, postId int) (Post, error) {
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row := db.QueryRow(`
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SELECT id, thread_id, author, body, created_at, media_path,
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ip_hash, number, thumb_path, banned
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FROM posts
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WHERE id = ?`, postId)
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var r Post
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err := row.Scan(
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&r.Id, &r.ThreadId, &r.Author, &r.Body, &r.CreatedAt, &r.MediaPath,
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&r.IpHash, &r.Number, &r.ThumbPath, &r.Banned)
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if err != nil {
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return Post{}, err
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}
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return r, row.Err()
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}
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func GetOriginalPost(db *sql.DB, threadId int) (Post, error) {
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row := db.QueryRow(`
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SELECT id, thread_id, author, body, created_at, media_path,
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ip_hash, number, thumb_path, banned
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FROM posts
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WHERE thread_id = ?
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ORDER BY created_at ASC LIMIT 1`, threadId)
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var r Post
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err := row.Scan(
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&r.Id, &r.ThreadId, &r.Author, &r.Body, &r.CreatedAt, &r.MediaPath,
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&r.IpHash, &r.Number, &r.ThumbPath, &r.Banned)
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if err != nil {
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return Post{}, err
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}
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return r, row.Err()
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}
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func PutThread(db *sql.DB, boardSlug string, subject string, body string, mediaPath string, thumbPath string, ip_hash string) (int, error) {
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tx, err := db.Begin()
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if err != nil {
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return -1, err
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}
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defer tx.Rollback()
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res, err := tx.Exec(`
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INSERT INTO threads (board_slug, subject)
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VALUES (?, ?) RETURNING id`, boardSlug, subject)
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if err != nil {
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return -1, err
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}
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threadIdStr, err := res.LastInsertId()
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if err != nil {
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return -1, err
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}
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if err := PutPost(tx, boardSlug, int(threadIdStr), body, mediaPath, thumbPath, ip_hash); err != nil {
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return -1, err
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}
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row := tx.QueryRow("SELECT COUNT(*) FROM threads WHERE board_slug = ?", boardSlug)
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var threadCount int
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if err = row.Scan(&threadCount); err != nil {
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return -1, err
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}
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if threadCount > util.MAX_THREAD_COUNT {
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row := tx.QueryRow(`
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SELECT id FROM threads
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WHERE id = (
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SELECT id FROM threads
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WHERE board_slug = ?
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ORDER BY bumped_at ASC
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LIMIT 1)`, boardSlug)
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var pruneThreadId int
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err := row.Scan(&pruneThreadId)
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if err != nil {
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return -1, err
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}
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if err := DeleteThread(tx, pruneThreadId); err != nil {
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return -1, err
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}
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}
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if err = tx.Commit(); err != nil {
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return -1, err
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}
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return int(threadIdStr), nil
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}
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func PutPost(db Queryer, boardSlug string, threadId int, body string, mediaPath string, thumbPath string, ip_hash string) error {
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row := db.QueryRow(`
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SELECT MAX(p.number)
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FROM posts p
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INNER JOIN threads t ON p.thread_id = t.id
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WHERE t.board_slug = ?`, boardSlug)
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var latestPostNumber sql.NullInt64
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if err := row.Scan(&latestPostNumber); err != nil {
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return err
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}
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newPostNumber := 1
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if latestPostNumber.Valid {
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newPostNumber = int(latestPostNumber.Int64) + 1
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}
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_, err := db.Exec(`
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INSERT INTO posts (thread_id, body, media_path, ip_hash, number, thumb_path)
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VALUES (?, ?, ?, ?, ?, ?)`, threadId, body, mediaPath, ip_hash, newPostNumber, thumbPath)
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if err != nil {
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return err
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}
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_, err = db.Exec(`UPDATE threads SET bumped_at = CURRENT_TIMESTAMP where id = ?`, threadId)
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if err != nil {
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return err
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}
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return nil
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}
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func DeleteThread(db Queryer, threadId int) error {
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// cleanup images
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rows, err := db.Query(`
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SELECT media_path, thumb_path
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FROM posts
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WHERE thread_id = ?`, threadId)
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if err != nil {
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return err
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}
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defer rows.Close()
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for rows.Next() {
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var (
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pruneMediaThumbPath string
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pruneMediaFullPath string
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)
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if err := rows.Scan(&pruneMediaFullPath, &pruneMediaThumbPath); err != nil {
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return err
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}
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if pruneMediaFullPath != "" {
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if err := os.Remove(path.Join(util.POST_MEDIA_FULL_PATH, pruneMediaFullPath)); err != nil {
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if !errors.Is(err, fs.ErrNotExist) {
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return err
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}
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}
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}
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if pruneMediaThumbPath != "" {
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if err := os.Remove(path.Join(util.POST_MEDIA_THUMB_PATH, pruneMediaThumbPath)); err != nil {
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if !errors.Is(err, fs.ErrNotExist) {
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return err
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}
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}
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}
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}
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// delete thread
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_, err = db.Exec(`
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DELETE FROM threads
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WHERE id = ?`, threadId)
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if err != nil {
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return err
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}
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return nil
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}
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func DeletePost(db *sql.DB, postId int) error {
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// cleanup images
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row := db.QueryRow(`
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SELECT media_path, thumb_path
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FROM posts
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WHERE id = ?`, postId)
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var (
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pruneMediaThumbPath string
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pruneMediaFullPath string
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)
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if err := row.Scan(&pruneMediaFullPath, &pruneMediaThumbPath); err != nil {
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return err
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}
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if pruneMediaFullPath != "" {
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if err := os.Remove(path.Join(util.POST_MEDIA_FULL_PATH, pruneMediaFullPath)); err != nil {
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if !errors.Is(err, fs.ErrNotExist) {
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return err
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}
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}
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}
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if pruneMediaThumbPath != "" {
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if err := os.Remove(path.Join(util.POST_MEDIA_THUMB_PATH, pruneMediaThumbPath)); err != nil {
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if !errors.Is(err, fs.ErrNotExist) {
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return err
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}
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}
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}
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// delete post
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_, err := db.Exec(`
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DELETE FROM posts
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WHERE id = ?`, postId)
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if err != nil {
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return err
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}
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return nil
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}
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func GetAdmin(db *sql.DB, username string) (Admin, error) {
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row := db.QueryRow(`
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SELECT username, password
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FROM admins
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WHERE username = ?`, username)
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var result Admin
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if err := row.Scan(&result.Username, &result.Password); err != nil {
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return Admin{}, nil
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}
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return result, nil
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}
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func BanIp(db *sql.DB, ip string, reason string, expiration time.Time) error {
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_, err := db.Exec(`
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INSERT INTO bans (ip_hash, reason, expiration)
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VALUES (?, ?, ?)`, ip, reason, expiration)
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return err
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}
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