40 lines
1.6 KiB
Go
40 lines
1.6 KiB
Go
package domain
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import (
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"fmt"
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"math"
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"strings"
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)
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const officialWelcomeMessageTemplate = "👋 Welcome to OwpenGram!\n\nYou just signed in via %s.\n\nIf this wasn't you, revoke this session from Settings → Devices immediately."
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// OfficialWelcomeMessage builds the account-visible incoming message sent
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// from the official system account on every completed sign-in (SignUp and
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// every subsequent SignIn/SignInWithEmail), regardless of delivery channel.
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// Unlike OfficialLoginCodeMessage this never embeds a secret, so it is safe
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// to send unconditionally — it exists to give the account owner (and, on a
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// self-hosted single-admin server, that's usually also "the admin") a
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// visible record of every session start.
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func OfficialWelcomeMessage(userID int64, method string, date int) (Message, error) {
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method = strings.TrimSpace(method)
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if userID <= 0 || IsSystemUserID(userID) || method == "" || date < 0 || date > math.MaxInt32 {
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return Message{}, fmt.Errorf("%w: user=%d method=%q date=%d", ErrLoginCodeDeliveryInvalid, userID, method, date)
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}
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return Message{
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OwnerUserID: userID,
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Peer: Peer{Type: PeerTypeUser, ID: OfficialSystemUserID},
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From: Peer{Type: PeerTypeUser, ID: OfficialSystemUserID},
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Date: date,
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Body: fmt.Sprintf(officialWelcomeMessageTemplate, method),
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}, nil
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}
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// SignInMethodLabel returns the human-readable method name embedded in
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// OfficialWelcomeMessage, derived from whether phone is an email-signup
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// synthetic number (see EncodeEmailPhone) or a real phone number.
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func SignInMethodLabel(phone string) string {
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if IsEmailSignupPhone(phone) {
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return "email"
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}
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return "phone number"
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}
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