9a9a271b1f
tsvector has a size limit of 1MB. See https://www.postgresql.org/docs/13/textsearch-limitations.html Input text is now truncated to avoid this error: "pq: string is too long for tsvector (1057834 bytes, max 1048575 bytes)"
478 lines
12 KiB
Go
478 lines
12 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package storage // import "miniflux.app/storage"
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import (
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"database/sql"
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"errors"
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"fmt"
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"time"
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"miniflux.app/crypto"
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"miniflux.app/logger"
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"miniflux.app/model"
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"github.com/lib/pq"
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)
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// CountAllEntries returns the number of entries for each status in the database.
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func (s *Storage) CountAllEntries() map[string]int64 {
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rows, err := s.db.Query(`SELECT status, count(*) FROM entries GROUP BY status`)
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if err != nil {
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return nil
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}
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defer rows.Close()
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results := make(map[string]int64)
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results[model.EntryStatusUnread] = 0
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results[model.EntryStatusRead] = 0
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results[model.EntryStatusRemoved] = 0
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for rows.Next() {
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var status string
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var count int64
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if err := rows.Scan(&status, &count); err != nil {
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continue
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}
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results[status] = count
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}
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results["total"] = results[model.EntryStatusUnread] + results[model.EntryStatusRead] + results[model.EntryStatusRemoved]
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return results
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}
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// CountUnreadEntries returns the number of unread entries.
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func (s *Storage) CountUnreadEntries(userID int64) int {
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builder := s.NewEntryQueryBuilder(userID)
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builder.WithStatus(model.EntryStatusUnread)
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n, err := builder.CountEntries()
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if err != nil {
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logger.Error(`store: unable to count unread entries for user #%d: %v`, userID, err)
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return 0
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}
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return n
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}
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// NewEntryQueryBuilder returns a new EntryQueryBuilder
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func (s *Storage) NewEntryQueryBuilder(userID int64) *EntryQueryBuilder {
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return NewEntryQueryBuilder(s, userID)
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}
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// UpdateEntryContent updates entry content.
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func (s *Storage) UpdateEntryContent(entry *model.Entry) error {
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tx, err := s.db.Begin()
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if err != nil {
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return err
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}
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query := `
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UPDATE
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entries
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SET
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content=$1, reading_time=$2
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WHERE
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id=$3 AND user_id=$4
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`
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_, err = tx.Exec(query, entry.Content, entry.ReadingTime, entry.ID, entry.UserID)
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if err != nil {
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tx.Rollback()
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return fmt.Errorf(`store: unable to update content of entry #%d: %v`, entry.ID, err)
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}
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query = `
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UPDATE
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entries
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SET
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document_vectors = setweight(to_tsvector(left(coalesce(title, ''), 500000)), 'A') || setweight(to_tsvector(left(coalesce(content, ''), 500000)), 'B')
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WHERE
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id=$1 AND user_id=$2
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`
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_, err = tx.Exec(query, entry.ID, entry.UserID)
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if err != nil {
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tx.Rollback()
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return fmt.Errorf(`store: unable to update content of entry #%d: %v`, entry.ID, err)
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}
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return tx.Commit()
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}
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// createEntry add a new entry.
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func (s *Storage) createEntry(tx *sql.Tx, entry *model.Entry) error {
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query := `
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INSERT INTO entries
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(
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title,
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hash,
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url,
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comments_url,
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published_at,
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content,
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author,
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user_id,
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feed_id,
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reading_time,
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changed_at,
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document_vectors
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)
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VALUES
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(
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$1,
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$2,
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$3,
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$4,
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$5,
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$6,
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$7,
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$8,
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$9,
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$10,
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now(),
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setweight(to_tsvector(left(coalesce($1, ''), 500000)), 'A') || setweight(to_tsvector(left(coalesce($6, ''), 500000)), 'B')
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)
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RETURNING
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id, status
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`
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err := tx.QueryRow(
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query,
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entry.Title,
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entry.Hash,
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entry.URL,
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entry.CommentsURL,
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entry.Date,
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entry.Content,
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entry.Author,
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entry.UserID,
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entry.FeedID,
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entry.ReadingTime,
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).Scan(&entry.ID, &entry.Status)
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if err != nil {
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return fmt.Errorf(`store: unable to create entry %q (feed #%d): %v`, entry.URL, entry.FeedID, err)
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}
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for i := 0; i < len(entry.Enclosures); i++ {
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entry.Enclosures[i].EntryID = entry.ID
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entry.Enclosures[i].UserID = entry.UserID
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err := s.createEnclosure(tx, entry.Enclosures[i])
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if err != nil {
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return err
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}
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}
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return nil
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}
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// updateEntry updates an entry when a feed is refreshed.
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// Note: we do not update the published date because some feeds do not contains any date,
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// it default to time.Now() which could change the order of items on the history page.
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func (s *Storage) updateEntry(tx *sql.Tx, entry *model.Entry) error {
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query := `
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UPDATE
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entries
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SET
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title=$1,
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url=$2,
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comments_url=$3,
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content=$4,
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author=$5,
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reading_time=$6,
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document_vectors = setweight(to_tsvector(left(coalesce($1, ''), 500000)), 'A') || setweight(to_tsvector(left(coalesce($4, ''), 500000)), 'B')
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WHERE
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user_id=$7 AND feed_id=$8 AND hash=$9
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RETURNING
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id
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`
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err := tx.QueryRow(
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query,
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entry.Title,
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entry.URL,
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entry.CommentsURL,
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entry.Content,
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entry.Author,
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entry.ReadingTime,
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entry.UserID,
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entry.FeedID,
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entry.Hash,
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).Scan(&entry.ID)
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if err != nil {
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return fmt.Errorf(`store: unable to update entry %q: %v`, entry.URL, err)
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}
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for _, enclosure := range entry.Enclosures {
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enclosure.UserID = entry.UserID
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enclosure.EntryID = entry.ID
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}
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return s.updateEnclosures(tx, entry.UserID, entry.ID, entry.Enclosures)
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}
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// entryExists checks if an entry already exists based on its hash when refreshing a feed.
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func (s *Storage) entryExists(tx *sql.Tx, entry *model.Entry) bool {
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var result bool
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tx.QueryRow(
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`SELECT true FROM entries WHERE user_id=$1 AND feed_id=$2 AND hash=$3`,
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entry.UserID,
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entry.FeedID,
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entry.Hash,
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).Scan(&result)
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return result
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}
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// cleanupEntries deletes from the database entries marked as "removed" and not visible anymore in the feed.
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func (s *Storage) cleanupEntries(feedID int64, entryHashes []string) error {
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query := `
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DELETE FROM
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entries
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WHERE
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feed_id=$1
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AND
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id IN (SELECT id FROM entries WHERE feed_id=$2 AND status=$3 AND NOT (hash=ANY($4)))
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`
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if _, err := s.db.Exec(query, feedID, feedID, model.EntryStatusRemoved, pq.Array(entryHashes)); err != nil {
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return fmt.Errorf(`store: unable to cleanup entries: %v`, err)
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}
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return nil
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}
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// RefreshFeedEntries updates feed entries while refreshing a feed.
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func (s *Storage) RefreshFeedEntries(userID, feedID int64, entries model.Entries, updateExistingEntries bool) (err error) {
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var entryHashes []string
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for _, entry := range entries {
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entry.UserID = userID
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entry.FeedID = feedID
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tx, err := s.db.Begin()
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if err != nil {
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return fmt.Errorf(`store: unable to start transaction: %v`, err)
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}
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if s.entryExists(tx, entry) {
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if updateExistingEntries {
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err = s.updateEntry(tx, entry)
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}
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} else {
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err = s.createEntry(tx, entry)
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}
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if err != nil {
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tx.Rollback()
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return err
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}
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if err := tx.Commit(); err != nil {
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return fmt.Errorf(`store: unable to commit transaction: %v`, err)
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}
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entryHashes = append(entryHashes, entry.Hash)
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}
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go func() {
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if err := s.cleanupEntries(feedID, entryHashes); err != nil {
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logger.Error(`store: feed #%d: %v`, feedID, err)
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}
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}()
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return nil
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}
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// ArchiveEntries changes the status of entries to "removed" after the given number of days.
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func (s *Storage) ArchiveEntries(status string, days int) (int64, error) {
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if days < 0 {
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return 0, nil
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}
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query := `
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UPDATE
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entries
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SET
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status='removed'
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WHERE
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id=ANY(SELECT id FROM entries WHERE status=$1 AND starred is false AND share_code='' AND created_at < now () - '%d days'::interval ORDER BY created_at ASC LIMIT 5000)
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`
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result, err := s.db.Exec(fmt.Sprintf(query, days), status)
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if err != nil {
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return 0, fmt.Errorf(`store: unable to archive %s entries: %v`, status, err)
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}
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count, err := result.RowsAffected()
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if err != nil {
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return 0, fmt.Errorf(`store: unable to get the number of rows affected: %v`, err)
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}
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return count, nil
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}
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// SetEntriesStatus update the status of the given list of entries.
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func (s *Storage) SetEntriesStatus(userID int64, entryIDs []int64, status string) error {
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query := `UPDATE entries SET status=$1, changed_at=now() WHERE user_id=$2 AND id=ANY($3)`
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result, err := s.db.Exec(query, status, userID, pq.Array(entryIDs))
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if err != nil {
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return fmt.Errorf(`store: unable to update entries statuses %v: %v`, entryIDs, err)
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}
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count, err := result.RowsAffected()
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if err != nil {
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return fmt.Errorf(`store: unable to update these entries %v: %v`, entryIDs, err)
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}
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if count == 0 {
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return errors.New(`store: nothing has been updated`)
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}
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return nil
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}
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// ToggleBookmark toggles entry bookmark value.
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func (s *Storage) ToggleBookmark(userID int64, entryID int64) error {
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query := `UPDATE entries SET starred = NOT starred, changed_at=now() WHERE user_id=$1 AND id=$2`
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result, err := s.db.Exec(query, userID, entryID)
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if err != nil {
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return fmt.Errorf(`store: unable to toggle bookmark flag for entry #%d: %v`, entryID, err)
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}
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count, err := result.RowsAffected()
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if err != nil {
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return fmt.Errorf(`store: unable to toggle bookmark flag for entry #%d: %v`, entryID, err)
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}
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if count == 0 {
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return errors.New(`store: nothing has been updated`)
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}
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return nil
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}
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// FlushHistory set all entries with the status "read" to "removed".
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func (s *Storage) FlushHistory(userID int64) error {
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query := `
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UPDATE
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entries
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SET
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status=$1,
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changed_at=now()
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WHERE
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user_id=$2 AND status=$3 AND starred is false AND share_code=''
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`
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_, err := s.db.Exec(query, model.EntryStatusRemoved, userID, model.EntryStatusRead)
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if err != nil {
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return fmt.Errorf(`store: unable to flush history: %v`, err)
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}
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return nil
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}
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// MarkAllAsRead updates all user entries to the read status.
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func (s *Storage) MarkAllAsRead(userID int64) error {
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query := `UPDATE entries SET status=$1, changed_at=now() WHERE user_id=$2 AND status=$3`
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result, err := s.db.Exec(query, model.EntryStatusRead, userID, model.EntryStatusUnread)
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if err != nil {
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return fmt.Errorf(`store: unable to mark all entries as read: %v`, err)
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}
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count, _ := result.RowsAffected()
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logger.Debug("[Storage:MarkAllAsRead] %d items marked as read", count)
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return nil
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}
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// MarkFeedAsRead updates all feed entries to the read status.
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func (s *Storage) MarkFeedAsRead(userID, feedID int64, before time.Time) error {
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query := `
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UPDATE
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entries
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SET
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status=$1,
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changed_at=now()
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WHERE
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user_id=$2 AND feed_id=$3 AND status=$4 AND published_at < $5
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`
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result, err := s.db.Exec(query, model.EntryStatusRead, userID, feedID, model.EntryStatusUnread, before)
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if err != nil {
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return fmt.Errorf(`store: unable to mark feed entries as read: %v`, err)
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}
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count, _ := result.RowsAffected()
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logger.Debug("[Storage:MarkFeedAsRead] %d items marked as read", count)
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return nil
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}
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// MarkCategoryAsRead updates all category entries to the read status.
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func (s *Storage) MarkCategoryAsRead(userID, categoryID int64, before time.Time) error {
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query := `
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UPDATE
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entries
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SET
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status=$1,
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changed_at=now()
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WHERE
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user_id=$2
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AND
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status=$3
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AND
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published_at < $4
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AND
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feed_id IN (SELECT id FROM feeds WHERE user_id=$2 AND category_id=$5)
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`
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result, err := s.db.Exec(query, model.EntryStatusRead, userID, model.EntryStatusUnread, before, categoryID)
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if err != nil {
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return fmt.Errorf(`store: unable to mark category entries as read: %v`, err)
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}
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count, _ := result.RowsAffected()
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logger.Debug("[Storage:MarkCategoryAsRead] %d items marked as read", count)
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return nil
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}
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// EntryURLExists returns true if an entry with this URL already exists.
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func (s *Storage) EntryURLExists(feedID int64, entryURL string) bool {
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var result bool
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query := `SELECT true FROM entries WHERE feed_id=$1 AND url=$2`
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s.db.QueryRow(query, feedID, entryURL).Scan(&result)
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return result
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}
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// EntryShareCode returns the share code of the provided entry.
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// It generates a new one if not already defined.
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func (s *Storage) EntryShareCode(userID int64, entryID int64) (shareCode string, err error) {
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query := `SELECT share_code FROM entries WHERE user_id=$1 AND id=$2`
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err = s.db.QueryRow(query, userID, entryID).Scan(&shareCode)
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if err != nil {
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err = fmt.Errorf(`store: unable to get share code for entry #%d: %v`, entryID, err)
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return
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}
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if shareCode == "" {
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shareCode = crypto.GenerateRandomStringHex(20)
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query = `UPDATE entries SET share_code = $1 WHERE user_id=$2 AND id=$3`
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_, err = s.db.Exec(query, shareCode, userID, entryID)
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if err != nil {
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err = fmt.Errorf(`store: unable to set share code for entry #%d: %v`, entryID, err)
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return
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}
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}
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return
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}
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// UnshareEntry removes the share code for the given entry.
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func (s *Storage) UnshareEntry(userID int64, entryID int64) (err error) {
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query := `UPDATE entries SET share_code='' WHERE user_id=$1 AND id=$2`
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_, err = s.db.Exec(query, userID, entryID)
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if err != nil {
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err = fmt.Errorf(`store: unable to remove share code for entry #%d: %v`, entryID, err)
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}
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return
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}
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