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13a1360779
* TXT records should check length * Add validation to TXT generator * Split and validate long TXT targets * Add a metaparameter to TXT records to indicate autosplit is requested. * SPF_BUILDER marks TXT records as needing to be autosplit. * Validate should check for overly-long TXT targets
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
package models
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import (
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"strconv"
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"strings"
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"github.com/pkg/errors"
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)
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// SetTargetDS sets the DS fields.
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func (rc *RecordConfig) SetTargetDS(keytag uint16, algorithm, digesttype uint8, digest string) error {
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rc.DsKeyTag = keytag
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rc.DsAlgorithm = algorithm
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rc.DsDigestType = digesttype
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rc.DsDigest = digest
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if rc.Type == "" {
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rc.Type = "DS"
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}
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if rc.Type != "DS" {
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panic("assertion failed: SetTargetDS called when .Type is not DS")
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}
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return nil
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}
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// SetTargetDSStrings is like SetTargetDS but accepts strings.
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func (rc *RecordConfig) SetTargetDSStrings(keytag, algorithm, digesttype, digest string) error {
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u16keytag, err := strconv.ParseUint(keytag, 10, 16)
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if err != nil {
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return errors.Wrap(err, "DS KeyTag can't fit in 16 bits")
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}
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u8algorithm, err := strconv.ParseUint(algorithm, 10, 8)
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if err != nil {
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return errors.Wrap(err, "DS Algorithm can't fit in 8 bits")
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}
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u8digesttype, err := strconv.ParseUint(digesttype, 10, 8)
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if err != nil {
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return errors.Wrap(err, "DS DigestType can't fit in 8 bits")
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}
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return rc.SetTargetDS(uint16(u16keytag), uint8(u8algorithm), uint8(u8digesttype), digest)
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}
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// SetTargetDSString is like SetTargetDS but accepts one big string.
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func (rc *RecordConfig) SetTargetDSString(s string) error {
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part := strings.Fields(s)
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if len(part) != 4 {
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return errors.Errorf("DS value does not contain 5 fields: (%#v)", s)
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}
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return rc.SetTargetDSStrings(part[0], part[1], part[2], part[3])
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}
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