49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
package auth
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import (
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"github.com/zclconf/go-cty/cty"
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)
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// HostCredentialsFromMap converts a map of key-value pairs from a credentials
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// definition provided by the user (e.g. in a config file, or via a credentials
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// helper) into a HostCredentials object if possible, or returns nil if
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// no credentials could be extracted from the map.
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//
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// This function ignores map keys it is unfamiliar with, to allow for future
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// expansion of the credentials map format for new credential types.
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func HostCredentialsFromMap(m map[string]interface{}) HostCredentials {
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if m == nil {
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return nil
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}
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if token, ok := m["token"].(string); ok {
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return HostCredentialsToken(token)
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}
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return nil
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}
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// HostCredentialsFromObject converts a cty.Value of an object type into a
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// HostCredentials object if possible, or returns nil if no credentials could
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// be extracted from the map.
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//
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// This function ignores object attributes it is unfamiliar with, to allow for
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// future expansion of the credentials object structure for new credential types.
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//
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// If the given value is not of an object type, this function will panic.
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func HostCredentialsFromObject(obj cty.Value) HostCredentials {
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if !obj.Type().HasAttribute("token") {
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return nil
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}
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tokenV := obj.GetAttr("token")
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if tokenV.IsNull() || !tokenV.IsKnown() {
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return nil
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}
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if !cty.String.Equals(tokenV.Type()) {
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// Weird, but maybe some future Terraform version accepts an object
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// here for some reason, so we'll be resilient.
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return nil
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}
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return HostCredentialsToken(tokenV.AsString())
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}
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