99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
package signed
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import (
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"fmt"
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"strings"
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"github.com/theupdateframework/notary/tuf/data"
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)
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// ErrInsufficientSignatures - can not create enough signatures on a piece of
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// metadata
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type ErrInsufficientSignatures struct {
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FoundKeys int
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NeededKeys int
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MissingKeyIDs []string
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}
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func (e ErrInsufficientSignatures) Error() string {
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candidates := ""
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if len(e.MissingKeyIDs) > 0 {
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candidates = fmt.Sprintf(" (%s)", strings.Join(e.MissingKeyIDs, ", "))
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}
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if e.FoundKeys == 0 {
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return fmt.Sprintf("signing keys not available: need %d keys from %d possible keys%s",
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e.NeededKeys, len(e.MissingKeyIDs), candidates)
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}
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return fmt.Sprintf("not enough signing keys: found %d of %d needed keys - %d other possible keys%s",
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e.FoundKeys, e.NeededKeys, len(e.MissingKeyIDs), candidates)
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}
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// ErrExpired indicates a piece of metadata has expired
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type ErrExpired struct {
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Role data.RoleName
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Expired string
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}
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func (e ErrExpired) Error() string {
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return fmt.Sprintf("%s expired at %v", e.Role.String(), e.Expired)
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}
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// ErrLowVersion indicates the piece of metadata has a version number lower than
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// a version number we're already seen for this role
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type ErrLowVersion struct {
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Actual int
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Current int
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}
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func (e ErrLowVersion) Error() string {
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return fmt.Sprintf("version %d is lower than current version %d", e.Actual, e.Current)
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}
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// ErrRoleThreshold indicates we did not validate enough signatures to meet the threshold
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type ErrRoleThreshold struct {
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Msg string
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}
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func (e ErrRoleThreshold) Error() string {
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if e.Msg == "" {
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return "valid signatures did not meet threshold"
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}
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return e.Msg
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}
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// ErrInvalidKeyType indicates the types for the key and signature it's associated with are
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// mismatched. Probably a sign of malicious behaviour
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type ErrInvalidKeyType struct{}
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func (e ErrInvalidKeyType) Error() string {
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return "key type is not valid for signature"
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}
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// ErrInvalidKeyID indicates the specified key ID was incorrect for its associated data
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type ErrInvalidKeyID struct{}
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func (e ErrInvalidKeyID) Error() string {
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return "key ID is not valid for key content"
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}
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// ErrInvalidKeyLength indicates that while we may support the cipher, the provided
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// key length is not specifically supported, i.e. we support RSA, but not 1024 bit keys
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type ErrInvalidKeyLength struct {
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msg string
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}
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func (e ErrInvalidKeyLength) Error() string {
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return fmt.Sprintf("key length is not supported: %s", e.msg)
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}
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// ErrNoKeys indicates no signing keys were found when trying to sign
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type ErrNoKeys struct {
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KeyIDs []string
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}
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func (e ErrNoKeys) Error() string {
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return fmt.Sprintf("could not find necessary signing keys, at least one of these keys must be available: %s",
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strings.Join(e.KeyIDs, ", "))
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}
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