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pkix_modified.go
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pkix_modified.go
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package pkix contains shared, low level structures used for ASN.1 parsing
// and serialization of X.509 certificates, CRL and OCSP.
package pkix
import (
"encoding/asn1"
"strings"
)
// AttributeTypeAndValue mirrors the ASN.1 structure of the same name in
// http://tools.ietf.org/html/rfc5280#section-4.1.2.4
type AttributeTypeAndValue struct {
Type asn1.ObjectIdentifier `json:"type"`
Value interface{} `json:"value"`
}
// Name represents an X.509 distinguished name. This only includes the common
// elements of a DN. Additional elements in the name are ignored.
type Name struct {
Country, Organization, OrganizationalUnit []string
Locality, Province []string
StreetAddress, PostalCode, DomainComponent []string
EmailAddress []string
SerialNumber, CommonName string
GivenName, Surname []string
// EV Components
JurisdictionLocality, JurisdictionProvince, JurisdictionCountry []string
Names []AttributeTypeAndValue
ExtraNames []AttributeTypeAndValue
// OriginalRDNS is saved if the name is populated using FillFromRDNSequence.
// Additionally, if OriginalRDNS is non-nil, the String and ToRDNSequence
// methods will simply use this.
OriginalRDNS RDNSequence
}
// FillFromRDNSequence populates n based on the AttributeTypeAndValueSETs in the
// RDNSequence. It save the sequence as OriginalRDNS.
func (n *Name) FillFromRDNSequence(rdns *RDNSequence) {
n.OriginalRDNS = *rdns
for _, rdn := range *rdns {
if len(rdn) == 0 {
continue
}
atv := rdn[0]
n.Names = append(n.Names, atv)
value, ok := atv.Value.(string)
if !ok {
continue
}
t := atv.Type
if len(t) == 4 && t[0] == 2 && t[1] == 5 && t[2] == 4 {
switch t[3] {
case 3:
n.CommonName = value
case 4:
n.Surname = append(n.Surname, value)
case 5:
n.SerialNumber = value
case 6:
n.Country = append(n.Country, value)
case 7:
n.Locality = append(n.Locality, value)
case 8:
n.Province = append(n.Province, value)
case 9:
n.StreetAddress = append(n.StreetAddress, value)
case 10:
n.Organization = append(n.Organization, value)
case 11:
n.OrganizationalUnit = append(n.OrganizationalUnit, value)
case 17:
n.PostalCode = append(n.PostalCode, value)
case 42:
n.GivenName = append(n.GivenName, value)
}
} else if t.Equal(oidDomainComponent) {
n.DomainComponent = append(n.DomainComponent, value)
} else if t.Equal(oidDNEmailAddress) {
// Deprecated, see RFC 5280 Section 4.1.2.6
n.EmailAddress = append(n.EmailAddress, value)
} else if t.Equal(oidJurisdictionLocality) {
n.JurisdictionLocality = append(n.JurisdictionLocality, value)
} else if t.Equal(oidJurisdictionProvince) {
n.JurisdictionProvince = append(n.JurisdictionProvince, value)
} else if t.Equal(oidJurisdictionCountry) {
n.JurisdictionCountry = append(n.JurisdictionCountry, value)
}
}
}
var (
oidCountry = []int{2, 5, 4, 6}
oidOrganization = []int{2, 5, 4, 10}
oidOrganizationalUnit = []int{2, 5, 4, 11}
oidCommonName = []int{2, 5, 4, 3}
oidSurname = []int{2, 5, 4, 4}
oidSerialNumber = []int{2, 5, 4, 5}
oidLocality = []int{2, 5, 4, 7}
oidProvince = []int{2, 5, 4, 8}
oidStreetAddress = []int{2, 5, 4, 9}
oidPostalCode = []int{2, 5, 4, 17}
oidGivenName = []int{2, 5, 4, 42}
oidDomainComponent = []int{0, 9, 2342, 19200300, 100, 1, 25}
oidDNEmailAddress = []int{1, 2, 840, 113549, 1, 9, 1}
// EV
oidJurisdictionLocality = []int{1, 3, 6, 1, 4, 1, 311, 60, 2, 1, 1}
oidJurisdictionProvince = []int{1, 3, 6, 1, 4, 1, 311, 60, 2, 1, 2}
oidJurisdictionCountry = []int{1, 3, 6, 1, 4, 1, 311, 60, 2, 1, 3}
)
// appendRDNs appends a relativeDistinguishedNameSET to the given RDNSequence
// and returns the new value. The relativeDistinguishedNameSET contains an
// attributeTypeAndValue for each of the given values. See RFC 5280, A.1, and
// search for AttributeTypeAndValue.
func (n Name) appendRDNs(in RDNSequence, values []string, oid asn1.ObjectIdentifier) RDNSequence {
// NOTE: stdlib prevents adding if the oid is already present in n.ExtraNames
//if len(values) == 0 || oidInAttributeTypeAndValue(oid, n.ExtraNames) {
if len(values) == 0 {
return in
}
s := make([]AttributeTypeAndValue, len(values))
for i, value := range values {
s[i].Type = oid
s[i].Value = value
}
return append(in, s)
}
// String returns an RDNSequence as comma seperated list of
// AttributeTypeAndValues in canonical form.
func (seq RDNSequence) String() string {
out := make([]string, 0, len(seq))
// An RDNSequence is effectively an [][]AttributeTypeAndValue
for _, atvSet := range seq {
for _, atv := range atvSet {
// Convert each individual AttributeTypeAndValue to X=Y
attrParts := make([]string, 0, 2)
oidString := atv.Type.String()
oidName, ok := oidDotNotationToNames[oidString]
if ok {
attrParts = append(attrParts, oidName.ShortName)
} else {
attrParts = append(attrParts, oidString)
}
switch value := atv.Value.(type) {
case string:
attrParts = append(attrParts, value)
case []byte:
attrParts = append(attrParts, string(value))
default:
continue
}
attrString := strings.Join(attrParts, "=")
out = append(out, attrString)
}
}
return strings.Join(out, ", ")
}
// ToRDNSequence returns OriginalRDNS is populated. Otherwise, it builds an
// RDNSequence in canonical order.
func (n Name) ToRDNSequence() (ret RDNSequence) {
if n.OriginalRDNS != nil {
return n.OriginalRDNS
}
if len(n.CommonName) > 0 {
ret = n.appendRDNs(ret, []string{n.CommonName}, oidCommonName)
}
ret = n.appendRDNs(ret, n.OrganizationalUnit, oidOrganizationalUnit)
ret = n.appendRDNs(ret, n.Organization, oidOrganization)
ret = n.appendRDNs(ret, n.StreetAddress, oidStreetAddress)
ret = n.appendRDNs(ret, n.Locality, oidLocality)
ret = n.appendRDNs(ret, n.Province, oidProvince)
ret = n.appendRDNs(ret, n.PostalCode, oidPostalCode)
ret = n.appendRDNs(ret, n.Country, oidCountry)
ret = n.appendRDNs(ret, n.DomainComponent, oidDomainComponent)
// EV Components
ret = n.appendRDNs(ret, n.JurisdictionLocality, oidJurisdictionLocality)
ret = n.appendRDNs(ret, n.JurisdictionProvince, oidJurisdictionProvince)
ret = n.appendRDNs(ret, n.JurisdictionCountry, oidJurisdictionCountry)
if len(n.SerialNumber) > 0 {
ret = n.appendRDNs(ret, []string{n.SerialNumber}, oidSerialNumber)
}
ret = append(ret, n.ExtraNames)
return ret
}
// String returns a canonical representation of a DistinguishedName
func (n *Name) String() string {
seq := n.ToRDNSequence()
return seq.String()
}
// OtherName represents the ASN.1 structure of the same name. See RFC
// 5280, section 4.2.1.6.
type OtherName struct {
TypeID asn1.ObjectIdentifier
Value asn1.RawValue `asn1:"explicit"`
}
// EDIPartyName represents the ASN.1 structure of the same name. See RFC
// 5280, section 4.2.1.6.
type EDIPartyName struct {
NameAssigner string `asn1:"tag:0,optional,explicit" json:"name_assigner,omitempty"`
PartyName string `asn1:"tag:1,explicit" json:"party_name"`
}