3f5b3cdd98
* feat: add configurable SMTP HELO hostname Allow the SMTP HELO/EHLO hostname to be configured separately from the SMTP server hostname. This is useful when the SMTP server requires clients to identify themselves with a fully qualified hostname different from the server address. * chore: remove vendored dependency changes * Bump go-pkgz/notify to v1.4.0 and document SMTP_HELO_HOST The HELOHost field lands in go-pkgz/notify v1.4.0, so the branch needs the bump to compile; v1.3.0 in master has no such field. The example module is tidied alongside, as any change to backend/go.mod requires. Documents the parameter in the parameters table and, separately, in the email setup page: what it does, that leaving it unset keeps the previous `localhost` greeting, and the case it exists for, a relay refusing the greeting under Postfix `reject_non_fqdn_helo_hostname`. Also records the current limit: verification emails for email authentication go through go-pkgz/auth's own sender, which has no equivalent setting, so the greeting there is unchanged. * Bump go-pkgz/auth to v2.2.0 and apply SMTP_HELO_HOST to verification email The verification email sender had no way to set the greeting, so a relay that refuses the HELO would accept notifications and still reject sign-in emails. EmailParams gains HELOHost in go-pkgz/auth v2.2.0, so the same SMTP_HELO_HOST now drives both paths. The example module is tidied alongside, as any change to backend/go.mod requires. --------- Co-authored-by: oli <someone@somewhere.tld> Co-authored-by: Dmitry Verkhoturov <paskal.07@gmail.com>
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package stats
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import "math"
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// Mean gets the average of a slice of numbers
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func Mean(input Float64Data) (float64, error) {
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if input.Len() == 0 {
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return math.NaN(), EmptyInputErr
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}
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sum, _ := input.Sum()
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return sum / float64(input.Len()), nil
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}
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// GeometricMean gets the geometric mean for a slice of numbers
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func GeometricMean(input Float64Data) (float64, error) {
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l := input.Len()
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if l == 0 {
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return math.NaN(), EmptyInputErr
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}
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// Get the sum of all the numbers natural logs and return an
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// error for values that cannot be included in geometric mean
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var p float64
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for _, n := range input {
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if n < 0 {
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return math.NaN(), NegativeErr
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} else if n == 0 {
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return math.NaN(), ZeroErr
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}
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p += math.Log(n)
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}
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return math.Exp(p / float64(l)), nil
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}
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// HarmonicMean gets the harmonic mean for a slice of numbers
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func HarmonicMean(input Float64Data) (float64, error) {
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l := input.Len()
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if l == 0 {
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return math.NaN(), EmptyInputErr
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}
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// Get the sum of all the numbers reciprocals and return an
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// error for values that cannot be included in harmonic mean
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var p float64
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for _, n := range input {
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if n < 0 {
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return math.NaN(), NegativeErr
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} else if n == 0 {
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return math.NaN(), ZeroErr
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}
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p += (1 / n)
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}
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return float64(l) / p, nil
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}
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