c6c6f0233d
* Expand the linters and types of warnings to improve consistency and safety * Fail lint workflow if there are errors * golint has been replaced by revive * Hand-pick some of the default exclude list * Ignore error when trying to delete preview gif * Ignore linter warning opening playlist path * Rename user field Id -> ID * A bunch of renames to address linter warnings * Rename ChatClient -> Client per linter suggestion best practice * Rename ChatServer -> Server per linter suggestion best practice * More linter warning fixes * Add missing comments to all exported functions and properties
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
package utils
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import (
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"encoding/base64"
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"math/rand"
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"time"
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)
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const tokenLength = 32
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// GenerateAccessToken will generate and return an access token.
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func GenerateAccessToken() (string, error) {
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return generateRandomString(tokenLength)
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}
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// generateRandomBytes returns securely generated random bytes.
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// It will return an error if the system's secure random
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// number generator fails to function correctly, in which
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// case the caller should not continue.
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func generateRandomBytes(n int) ([]byte, error) {
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b := make([]byte, n)
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rand.Seed(time.Now().UTC().UnixNano())
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_, err := rand.Read(b) //nolint
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// Note that err == nil only if we read len(b) bytes.
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if err != nil {
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return nil, err
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}
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return b, nil
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}
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// generateRandomString returns a URL-safe, base64 encoded
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// securely generated random string.
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// It will return an error if the system's secure random
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// number generator fails to function correctly, in which
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// case the caller should not continue.
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func generateRandomString(n int) (string, error) {
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b, err := generateRandomBytes(n)
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return base64.URLEncoding.EncodeToString(b), err
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}
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