gotosocial/internal/id/ulid.go
kim 33aee1b1e9
[chore] reformat GetAccount() functionality, support updating accounts based on last_fetch (#1411)
* reformat GetAccount() functionality, and add UpdateAccount() function.

* use fetched_at instead of last_webfingered_at

* catch local "not found" errors. small formatting / error string changes

* remove now unused error type

* return nil when wrapping nil error

* update expected error messages

* return correct url for foss satan webfinger

* add AP model for Some_User

* normalize local domain

* return notretrievable where appropriate

* expose NewErrNotRetrievable

* ensure webfinger for new accounts searched by uri

* update local account short circuit

* allow enrich to fail for already-known accounts

* remove unused LastWebfingeredAt

* expose test maps on mock http client

* update Update test

* reformat GetAccount() functionality, and add UpdateAccount() function.

* use fetched_at instead of last_webfingered_at

* catch local "not found" errors. small formatting / error string changes

* remove nil error checks (we shouldn't be passing nil errors to newError() initializers)

* remove mutex unlock on transport init fail (it hasn't yet been locked!)

* woops add back the error wrapping to use ErrNotRetrievable

* caches were never being started... 🙈

---------

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>
2023-02-03 20:03:05 +00:00

78 lines
2.3 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package id
import (
"crypto/rand"
"math/big"
"time"
"github.com/oklog/ulid"
)
const (
Highest = "ZZZZZZZZZZZZZZZZZZZZZZZZZZ" // Highest is the highest possible ULID
Lowest = "00000000000000000000000000" // Lowest is the lowest possible ULID
randomRange = 631152381 // ~20 years in seconds
)
// ULID represents a Universally Unique Lexicographically Sortable Identifier of 26 characters. See https://github.com/oklog/ulid
type ULID string
// NewULID returns a new ULID string using the current time.
func NewULID() string {
ulid, err := ulid.New(
ulid.Timestamp(time.Now()), rand.Reader,
)
if err != nil {
panic(err)
}
return ulid.String()
}
// NewULIDFromTime returns a new ULID string using the given time, or an error if something goes wrong.
func NewULIDFromTime(t time.Time) (string, error) {
newUlid, err := ulid.New(ulid.Timestamp(t), rand.Reader)
if err != nil {
return "", err
}
return newUlid.String(), nil
}
// NewRandomULID returns a new ULID string using a random time in an ~80 year range around the current datetime, or an error if something goes wrong.
func NewRandomULID() (string, error) {
b1, err := rand.Int(rand.Reader, big.NewInt(randomRange))
if err != nil {
return "", err
}
r1 := time.Duration(int(b1.Int64()))
b2, err := rand.Int(rand.Reader, big.NewInt(randomRange))
if err != nil {
return "", err
}
r2 := -time.Duration(int(b2.Int64()))
arbitraryTime := time.Now().Add(r1 * time.Second).Add(r2 * time.Second)
newUlid, err := ulid.New(ulid.Timestamp(arbitraryTime), rand.Reader)
if err != nil {
return "", err
}
return newUlid.String(), nil
}