class OpenSSL::X509::Name - Documentation for Ruby 4.0
Description: class OpenSSL::X509::Name: An X. name represents a hostname, email address or other entity associated with a public key.
Keywords: ruby,class,OpenSSL::X509::Name

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# class OpenSSL::X509::Name

An X.509 name represents a hostname, email address or other entity associated with a public key.

You can create a `Name` by parsing a distinguished name `String` or by supplying the distinguished name as an `Array`.

    name = OpenSSL::X509::Name.parse_rfc2253 'DC=example,CN=nobody'

    name = OpenSSL::X509::Name.new [['CN', 'nobody'], ['DC', 'example']]

### Constants

COMPAT

  A flag for `to_s`.

  Breaks the name returned into multiple lines if longer than 80 characters.

DEFAULT_OBJECT_TYPE

  The default object type for name entries.

MULTILINE

  A flag for `to_s`.

  Returns a multiline format.

OBJECT_TYPE_TEMPLATE

  The default object type template for name entries.

ONELINE

  A flag for `to_s`.

  Returns a more readable format than `RFC2253`.

RFC2253

  A flag for `to_s`.

  Returns an `RFC2253` format name.

### Public Class Methods

X509::Name.new → name
X509::Name.new(der) → name
X509::Name.new(distinguished_name) → name
X509::Name.new(distinguished_name, template) → name
Source

    static VALUE
    ossl_x509name_initialize(int argc, VALUE *argv, VALUE self)
    {
        X509_NAME *name;
        VALUE arg, template;

        GetX509Name(self, name);
        if (rb_scan_args(argc, argv, "02", &arg, &template) == 0) {
            return self;
        }
        else {
            VALUE tmp = rb_check_array_type(arg);
            if (!NIL_P(tmp)) {
                VALUE args;
                if(NIL_P(template)) template = OBJECT_TYPE_TEMPLATE;
                args = rb_ary_new3(2, self, template);
                rb_block_call(tmp, rb_intern("each"), 0, 0, ossl_x509name_init_i, args);
            }
            else{
                const unsigned char *p;
                VALUE str = ossl_to_der_if_possible(arg);
                X509_NAME *x;
                StringValue(str);
                p = (unsigned char *)RSTRING_PTR(str);
                x = d2i_X509_NAME(&name, &p, RSTRING_LEN(str));
                DATA_PTR(self) = name;
                if(!x){
                    ossl_raise(eX509NameError, NULL);
                }
            }
        }

        return self;
    }

Creates a new `Name`.

A name may be created from a DER encoded string der, an `Array` representing a distinguished_name or a distinguished_name along with a template.

    name = OpenSSL::X509::Name.new [['CN', 'nobody'], ['DC', 'example']]

    name = OpenSSL::X509::Name.new name.to_der

See `add_entry` for a description of the distinguished_name Array’s contents

parse (str, template=OBJECT_TYPE_TEMPLATE)
Alias for: parse_openssl
parse_openssl (str, template=OBJECT_TYPE_TEMPLATE)
Source

    # File ext/openssl/lib/openssl/x509.rb, line 305
    def parse_openssl(str, template=OBJECT_TYPE_TEMPLATE)
      if str.start_with?("/")
        # /A=B/C=D format
        ary = str[1..-1].split("/").map { |i| i.split("=", 2) }
      else
        # Comma-separated
        ary = str.split(",").map { |i| i.strip.split("=", 2) }
      end
      self.new(ary, template)
    end

Parses the string representation of a distinguished name. Two different forms are supported:

- OpenSSL format (`X509_NAME_oneline()`) used by `to_s`. For example: `/DC=com/DC=example/CN=nobody`

- OpenSSL format (`X509_NAME_print()`) used by `#to_s(OpenSSL::X509::Name::COMPAT)`. For example: `DC=com, DC=example, CN=nobody`

Neither of them is standardized and has quirks and inconsistencies in handling of escaped characters or multi-valued RDNs.

Use of this method is discouraged in new applications. See `Name.parse_rfc2253` and `to_utf8` for the alternative.

Also aliased as: parse
parse_rfc2253 (str, template=OBJECT_TYPE_TEMPLATE)
Source

    # File ext/openssl/lib/openssl/x509.rb, line 286
    def parse_rfc2253(str, template=OBJECT_TYPE_TEMPLATE)
      ary = OpenSSL::X509::Name::RFC2253DN.scan(str)
      self.new(ary, template)
    end

Parses the UTF-8 string representation of a distinguished name, according to RFC 2253.

See also `to_utf8` for the opposite operation.

### Public Instance Methods

name <=> other → -1 | 0 | 1 | nil

Compares this `Name` with other and returns `0` if they are the same and `-1` or `+1` if they are greater or less than each other respectively. Returns `nil` if they are not comparable (i.e. different types).

Alias for: cmp
add_entry(oid, value [, type], loc: -1, set: 0) → self
Source

    static
    VALUE ossl_x509name_add_entry(int argc, VALUE *argv, VALUE self)
    {
        X509_NAME *name;
        VALUE oid, value, type, opts, kwargs[2];
        static ID kwargs_ids[2];
        const char *oid_name;
        int loc = -1, set = 0;

        if (!kwargs_ids[0]) {
            kwargs_ids[0] = rb_intern_const("loc");
            kwargs_ids[1] = rb_intern_const("set");
        }
        rb_scan_args(argc, argv, "21:", &oid, &value, &type, &opts);
        rb_get_kwargs(opts, kwargs_ids, 0, 2, kwargs);
        oid_name = StringValueCStr(oid);
        StringValue(value);
        if(NIL_P(type)) type = rb_aref(OBJECT_TYPE_TEMPLATE, oid);
        if (kwargs[0] != Qundef)
            loc = NUM2INT(kwargs[0]);
        if (kwargs[1] != Qundef)
            set = NUM2INT(kwargs[1]);
        GetX509Name(self, name);
        if (!X509_NAME_add_entry_by_txt(name, oid_name, NUM2INT(type),
                                        (unsigned char *)RSTRING_PTR(value),
                                        RSTRING_LENINT(value), loc, set))
            ossl_raise(eX509NameError, "X509_NAME_add_entry_by_txt");
        return self;
    }

Adds a new entry with the given oid and value to this name. The oid is an object identifier defined in ASN.1. Some common OIDs are:

C

  Country `Name`

CN

  Common `Name`

DC

  Domain Component

O

  Organization `Name`

OU

  Organizational Unit `Name`

ST

  State or Province `Name`

The optional keyword parameters loc and set specify where to insert the new attribute. Refer to the manpage of X509_NAME_add_entry(3) for details. loc defaults to -1 and set defaults to 0. This appends a single-valued RDN to the end.

cmp(other) → -1 | 0 | 1 | nil
Source

    static VALUE
    ossl_x509name_cmp(VALUE self, VALUE other)
    {
        int result;

        if (!rb_obj_is_kind_of(other, cX509Name))
            return Qnil;

        result = ossl_x509name_cmp0(self, other);
        if (result < 0) return INT2FIX(-1);
        if (result > 0) return INT2FIX(1);

        return INT2FIX(0);
    }

Compares this `Name` with other and returns `0` if they are the same and `-1` or `+1` if they are greater or less than each other respectively. Returns `nil` if they are not comparable (i.e. different types).

Also aliased as: <=>
eql?(other) → true | false
Source

    static VALUE
    ossl_x509name_eql(VALUE self, VALUE other)
    {
        if (!rb_obj_is_kind_of(other, cX509Name))
            return Qfalse;

        return ossl_x509name_cmp0(self, other) == 0 ? Qtrue : Qfalse;
    }

Returns true if name and other refer to the same hash key.

hash → integer
Source

    static VALUE
    ossl_x509name_hash(VALUE self)
    {
        X509_NAME *name;
        unsigned long hash;

        GetX509Name(self, name);

        hash = X509_NAME_hash(name);

        return ULONG2NUM(hash);
    }

The hash value returned is suitable for use as a certificate’s filename in a CA path.

hash_old → integer
Source

    static VALUE
    ossl_x509name_hash_old(VALUE self)
    {
        X509_NAME *name;
        unsigned long hash;

        GetX509Name(self, name);

        hash = X509_NAME_hash_old(name);

        return ULONG2NUM(hash);
    }

Returns an MD5 based hash used in `OpenSSL` 0.9.X.

pretty_print (q)
Source

    # File ext/openssl/lib/openssl/x509.rb, line 319
    def pretty_print(q)
      q.object_group(self) {
        q.text ' '
        q.text to_s(OpenSSL::X509::Name::RFC2253)
      }
    end

to_a → [[name, data, type], ...]
Source

    static VALUE
    ossl_x509name_to_a(VALUE self)
    {
        X509_NAME *name;
        int entries;
        VALUE ret;

        GetX509Name(self, name);
        entries = X509_NAME_entry_count(name);
        ret = rb_ary_new_capa(entries);
        for (int i = 0; i < entries; i++) {
            const X509_NAME_ENTRY *entry = X509_NAME_get_entry(name, i);
            if (!entry)
                ossl_raise(eX509NameError, "X509_NAME_get_entry");
            const ASN1_OBJECT *obj = X509_NAME_ENTRY_get_object(entry);
            VALUE vname = ossl_asn1obj_to_string(obj);
            const ASN1_STRING *data = X509_NAME_ENTRY_get_data(entry);
            VALUE vdata = asn1str_to_str(data);
            VALUE type = INT2NUM(ASN1_STRING_type(data));
            rb_ary_push(ret, rb_ary_new_from_args(3, vname, vdata, type));
        }
        return ret;
    }

Returns an `Array` representation of the distinguished name suitable for passing to `::new`

to_der → string
Source

    static VALUE
    ossl_x509name_to_der(VALUE self)
    {
        X509_NAME *name;
        VALUE str;
        long len;
        unsigned char *p;

        GetX509Name(self, name);
        if((len = i2d_X509_NAME(name, NULL)) <= 0)
            ossl_raise(eX509NameError, NULL);
        str = rb_str_new(0, len);
        p = (unsigned char *)RSTRING_PTR(str);
        if(i2d_X509_NAME(name, &p) <= 0)
            ossl_raise(eX509NameError, NULL);
        ossl_str_adjust(str, p);

        return str;
    }

Converts the name to DER encoding

to_s → string
to_s(format) → string
Source

    static VALUE
    ossl_x509name_to_s(int argc, VALUE *argv, VALUE self)
    {
        rb_check_arity(argc, 0, 1);
        /* name.to_s(nil) was allowed */
        if (!argc || NIL_P(argv[0]))
            return ossl_x509name_to_s_old(self);
        else
            return x509name_print(self, NUM2ULONG(argv[0]));
    }

Returns a `String` representation of the Distinguished `Name`. format is one of:

- `OpenSSL::X509::Name::COMPAT`

- `OpenSSL::X509::Name::RFC2253`

- `OpenSSL::X509::Name::ONELINE`

- `OpenSSL::X509::Name::MULTILINE`

If format is omitted, the largely broken and traditional `OpenSSL` format (`X509_NAME_oneline()` format) is chosen.

Use of this method is discouraged. None of the formats other than `OpenSSL::X509::Name::RFC2253` is standardized and may show an inconsistent behavior through OpenSSL versions.

It is recommended to use `to_utf8` instead, which is equivalent to calling `name.to_s(OpenSSL::X509::Name::RFC2253).force_encoding("UTF-8")`.

to_utf8 → string
Source

    static VALUE
    ossl_x509name_to_utf8(VALUE self)
    {
        VALUE str = x509name_print(self, XN_FLAG_RFC2253 & ~ASN1_STRFLGS_ESC_MSB);
        rb_enc_associate_index(str, rb_utf8_encindex());
        return str;
    }

Returns an UTF-8 representation of the distinguished name, as specified in RFC 2253.