57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
package config
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import (
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"crypto/sha256"
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"fmt"
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"net/url"
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"path/filepath"
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"regexp"
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"sort"
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"strings"
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)
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var instanceName = regexp.MustCompile(`^[a-zA-Z0-9][a-zA-Z0-9_-]*$`)
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// ValidateNetBoxes keeps source names usable as instance/hostname selectors.
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func (c *Config) ValidateNetBoxes() error {
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if len(c.NetBoxes) > 0 && c.NetBox.URL != "" {
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return fmt.Errorf("configure either netbox or netboxes, not both")
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}
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seen := make(map[string]bool)
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for _, source := range c.NetBoxes {
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if !instanceName.MatchString(source.Name) {
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return fmt.Errorf("netboxes.name %q must contain only letters, digits, underscores, or hyphens", source.Name)
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}
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name := strings.ToLower(source.Name)
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if seen[name] {
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return fmt.Errorf("duplicate NetBox instance name %q", source.Name)
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}
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seen[name] = true
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u, err := url.Parse(source.URL)
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if err != nil || (u.Scheme != "http" && u.Scheme != "https") || u.Host == "" || u.RawQuery != "" || u.Fragment != "" {
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return fmt.Errorf("NetBox %q requires an HTTP(S) URL without query or fragment", source.Name)
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}
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if source.TokenVersion < 0 || source.TokenVersion > 2 {
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return fmt.Errorf("NetBox %q: token_version must be 0, 1, or 2", source.Name)
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}
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}
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return nil
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}
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func (c *Config) HasNetBox() bool { return c.NetBox.URL != "" || len(c.NetBoxes) > 0 }
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// CachePath isolates named sources from legacy caches and from changed endpoints.
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// Rotating a token or reordering the sources does not discard usage history.
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func (c *Config) CachePath() string {
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if len(c.NetBoxes) == 0 {
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return c.Cache.Path
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}
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var identities []string
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for _, source := range c.NetBoxes {
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identities = append(identities, strings.ToLower(source.Name)+"\x00"+strings.TrimRight(source.URL, "/"))
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}
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sort.Strings(identities)
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sum := sha256.Sum256([]byte(strings.Join(identities, "\x00")))
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return filepath.Join(filepath.Dir(c.Cache.Path), fmt.Sprintf("instances-%x", sum[:8]), filepath.Base(c.Cache.Path))
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}
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