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-rw-r--r--src/mailinglist/store.go245
1 files changed, 0 insertions, 245 deletions
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()
-}