From 78bbfa42fa1159bce12c2c1d29eeb0bb9a8a2f75 Mon Sep 17 00:00:00 2001 From: Brian Picciano Date: Fri, 25 Aug 2023 21:04:59 +0200 Subject: Remove mailinglist and proof-of-work functionality --- src/mailinglist/store.go | 245 ----------------------------------------------- 1 file changed, 245 deletions(-) delete mode 100644 src/mailinglist/store.go (limited to 'src/mailinglist/store.go') diff --git a/src/mailinglist/store.go b/src/mailinglist/store.go deleted file mode 100644 index 49e7617..0000000 --- a/src/mailinglist/store.go +++ /dev/null @@ -1,245 +0,0 @@ -package mailinglist - -import ( - "crypto/sha512" - "database/sql" - "encoding/base64" - "errors" - "fmt" - "io" - "path" - "strings" - "time" - - _ "github.com/mattn/go-sqlite3" - "github.com/mediocregopher/blog.mediocregopher.com/srv/cfg" - migrate "github.com/rubenv/sql-migrate" -) - -var ( - // ErrNotFound is used to indicate an email could not be found in the - // database. - ErrNotFound = errors.New("no record found") -) - -// EmailIterator will iterate through a sequence of emails, returning the next -// email in the sequence on each call, or returning io.EOF. -type EmailIterator func() (Email, error) - -// Email describes all information related to an email which has yet -// to be verified. -type Email struct { - Email string - SubToken string - CreatedAt time.Time - - UnsubToken string - VerifiedAt time.Time -} - -// Store is used for storing MailingList related information. -type Store interface { - - // Set is used to set the information related to an email. - Set(Email) error - - // Get will return the record for the given email, or ErrNotFound. - Get(email string) (Email, error) - - // GetBySubToken will return the record for the given SubToken, or - // ErrNotFound. - GetBySubToken(subToken string) (Email, error) - - // GetByUnsubToken will return the record for the given UnsubToken, or - // ErrNotFound. - GetByUnsubToken(unsubToken string) (Email, error) - - // Delete will delete the record for the given email. - Delete(email string) error - - // GetAll returns all emails for which there is a record. - GetAll() EmailIterator - - Close() error -} - -var migrations = []*migrate.Migration{ - &migrate.Migration{ - Id: "1", - Up: []string{ - `CREATE TABLE emails ( - id TEXT PRIMARY KEY, - email TEXT NOT NULL, - sub_token TEXT NOT NULL, - created_at INTEGER NOT NULL, - - unsub_token TEXT, - verified_at INTEGER - )`, - }, - Down: []string{"DROP TABLE emails"}, - }, -} - -type store struct { - db *sql.DB -} - -// NewStore initializes a new Store using a sqlite3 database in the given -// DataDir. -func NewStore(dataDir cfg.DataDir) (Store, error) { - - path := path.Join(dataDir.Path, "mailinglist.sqlite3") - - db, err := sql.Open("sqlite3", path) - if err != nil { - return nil, fmt.Errorf("opening sqlite file at %q: %w", path, err) - } - - migrations := &migrate.MemoryMigrationSource{Migrations: migrations} - - if _, err := migrate.Exec(db, "sqlite3", migrations, migrate.Up); err != nil { - return nil, fmt.Errorf("running migrations: %w", err) - } - - return &store{ - db: db, - }, nil -} - -func (s *store) emailID(email string) string { - email = strings.ToLower(email) - h := sha512.New() - h.Write([]byte(email)) - return base64.URLEncoding.EncodeToString(h.Sum(nil)) -} - -func (s *store) Set(email Email) error { - _, err := s.db.Exec( - `INSERT INTO emails ( - id, email, sub_token, created_at, unsub_token, verified_at - ) - VALUES - (?, ?, ?, ?, ?, ?) - ON CONFLICT (id) DO UPDATE SET - email=excluded.email, - sub_token=excluded.sub_token, - unsub_token=excluded.unsub_token, - verified_at=excluded.verified_at - `, - s.emailID(email.Email), - email.Email, - email.SubToken, - email.CreatedAt.Unix(), - email.UnsubToken, - sql.NullInt64{ - Int64: email.VerifiedAt.Unix(), - Valid: !email.VerifiedAt.IsZero(), - }, - ) - - return err -} - -var scanCols = []string{ - "email", "sub_token", "created_at", "unsub_token", "verified_at", -} - -type row interface { - Scan(...interface{}) error -} - -func (s *store) scanRow(row row) (Email, error) { - var email Email - var createdAt int64 - var verifiedAt sql.NullInt64 - - err := row.Scan( - &email.Email, - &email.SubToken, - &createdAt, - &email.UnsubToken, - &verifiedAt, - ) - if err != nil { - return Email{}, err - } - - email.CreatedAt = time.Unix(createdAt, 0) - if verifiedAt.Valid { - email.VerifiedAt = time.Unix(verifiedAt.Int64, 0) - } - - return email, nil -} - -func (s *store) scanSingleRow(row *sql.Row) (Email, error) { - email, err := s.scanRow(row) - if errors.Is(err, sql.ErrNoRows) { - return Email{}, ErrNotFound - } - - return email, err -} - -func (s *store) Get(email string) (Email, error) { - row := s.db.QueryRow( - `SELECT `+strings.Join(scanCols, ",")+` - FROM emails - WHERE id=?`, - s.emailID(email), - ) - - return s.scanSingleRow(row) -} - -func (s *store) GetBySubToken(subToken string) (Email, error) { - row := s.db.QueryRow( - `SELECT `+strings.Join(scanCols, ",")+` - FROM emails - WHERE sub_token=?`, - subToken, - ) - - return s.scanSingleRow(row) -} - -func (s *store) GetByUnsubToken(unsubToken string) (Email, error) { - row := s.db.QueryRow( - `SELECT `+strings.Join(scanCols, ",")+` - FROM emails - WHERE unsub_token=?`, - unsubToken, - ) - - return s.scanSingleRow(row) -} - -func (s *store) Delete(email string) error { - _, err := s.db.Exec( - `DELETE FROM emails WHERE id=?`, - s.emailID(email), - ) - return err -} - -func (s *store) GetAll() EmailIterator { - rows, err := s.db.Query( - `SELECT ` + strings.Join(scanCols, ",") + ` - FROM emails`, - ) - - return func() (Email, error) { - if err != nil { - return Email{}, err - - } else if !rows.Next() { - return Email{}, io.EOF - } - return s.scanRow(rows) - } -} - -func (s *store) Close() error { - return s.db.Close() -} -- cgit v1.2.3