pronounsfu/scripts/cleandb/main.go

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package cleandb
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import (
"context"
"fmt"
"time"
dbpkg "codeberg.org/u1f320/pronouns.cc/backend/db"
"github.com/georgysavva/scany/pgxscan"
"github.com/joho/godotenv"
"github.com/rs/xid"
"github.com/urfave/cli/v2"
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)
var Command = &cli.Command{
Name: "clean",
Usage: "Clean deleted tokens + users daily",
Action: run,
}
func run(c *cli.Context) error {
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err := godotenv.Load()
if err != nil {
fmt.Println("error loading .env file:", err)
return err
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}
ctx := context.Background()
db, err := dbpkg.New()
if err != nil {
fmt.Println("error opening database:", err)
return err
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}
defer db.Close()
fmt.Println("opened database")
fmt.Println("deleting invalidated tokens")
ct, err := db.Exec(ctx, "DELETE FROM tokens WHERE invalidated = true OR expires < $1", time.Now())
if err != nil {
fmt.Println("executing query:", err)
return err
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}
fmt.Printf("deleted %v invalidated or expired tokens\n", ct.RowsAffected())
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fmt.Println("deleting expired export files")
var exports []dbpkg.DataExport
err = pgxscan.Select(ctx, db, &exports, "SELECT * FROM data_exports WHERE created_at < $1", time.Now().Add(-dbpkg.KeepExportTime))
if err != nil {
fmt.Println("error getting to-be-deleted export files:", err)
return err
}
for _, de := range exports {
err = db.DeleteExport(ctx, de)
if err != nil {
fmt.Printf("error deleting export %v: %v\n", de.ID, err)
continue
}
fmt.Println("deleted export", de.ID)
}
fmt.Printf("deleted %v expired exports\n", len(exports))
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var users []dbpkg.User
err = pgxscan.Select(ctx, db, &users, `SELECT * FROM users WHERE
deleted_at IS NOT NULL AND
(self_delete = true AND deleted_at < $1)
OR (self_delete = false AND deleted_at < $2)
ORDER BY id`, time.Now().Add(-dbpkg.SelfDeleteAfter), time.Now().Add(-dbpkg.ModDeleteAfter))
if err != nil {
fmt.Println("error getting to-be-deleted users:", err)
return err
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}
if len(users) == 0 {
fmt.Println("there are no users pending deletion")
return nil
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}
for _, u := range users {
members, err := db.UserMembers(ctx, u.ID)
if err != nil {
fmt.Printf("error getting members for user %v: %v\n", u.ID, err)
continue
}
for _, m := range members {
if m.Avatar == nil {
continue
}
fmt.Printf("deleting avatars for member %v\n", m.ID)
err = db.DeleteMemberAvatar(ctx, m.ID, *m.Avatar)
if err != nil {
fmt.Printf("error deleting avatars for member %v: %v", m.ID, err)
continue
}
fmt.Printf("deleted avatars for member %v\n", m.ID)
}
if u.Avatar == nil {
continue
}
fmt.Printf("deleting avatars for user %v\n", u.ID)
err = db.DeleteUserAvatar(ctx, u.ID, *u.Avatar)
if err != nil {
fmt.Printf("error deleting avatars for user %v: %v", u.ID, err)
continue
}
fmt.Printf("deleted avatars for user %v\n", u.ID)
}
ids := make([]xid.ID, len(users))
for _, u := range users {
ids = append(ids, u.ID)
}
ct, err = db.Exec(ctx, "DELETE FROM users WHERE id = ANY($1)", ids)
if err != nil {
fmt.Printf("error deleting users: %v\n", err)
return err
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}
fmt.Printf("deleted %v users!\n", ct.RowsAffected())
return nil
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}