Nikolai Papin
333817c9e1
fix: error handling in auth service for database; refactor: removed redundant taken email check; chore: removed todos that were completed/not needed; fix: leaking transactions in complete registration and login on error; refactor: got rid of txless requests during transactions;
38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
// Copyright (c) 2025 Nikolai Papin
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//
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// This file is part of Easywish
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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// the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package utils
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import (
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"crypto/rand"
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"fmt"
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"io"
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)
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func GenerateSecure6DigitNumber() (string, error) {
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maxNumber := 1000000
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b := make([]byte, 4)
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if _, err := io.ReadFull(rand.Reader, b); err != nil {
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return "", fmt.Errorf("failed to read random bytes: %w", err)
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}
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num := int(uint32(b[0])<<24 | uint32(b[1])<<16 | uint32(b[2])<<8 | uint32(b[3])) % maxNumber
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return fmt.Sprintf("%06d", num), nil
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}
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