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

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

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;
}

parse (str, template=OBJECT_TYPE_TEMPLATE)

Alias for: parse_openssl

parse_openssl (str, template=OBJECT_TYPE_TEMPLATE)

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.

# 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

Also aliased as: parse

parse_rfc2253 (str, template=OBJECT_TYPE_TEMPLATE)

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

See also to_utf8 for the opposite operation.

# 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

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

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.

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;
}

cmp(other) → -1 | 0 | 1 | nil

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);
}

Also aliased as: <=>

eql?(other) → true | false

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

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;
}

hash → integer

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

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

    GetX509Name(self, name);

    hash = X509_NAME_hash(name);

    return ULONG2NUM(hash);
}

hash_old → integer

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

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);
}

pretty_print (q)

# 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], ...]

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

static VALUE
ossl_x509name_to_a(VALUE self)
{
    X509_NAME *name;
    X509_NAME_ENTRY *entry;
    int i,entries,nid;
    char long_name[512];
    const char *short_name;
    VALUE ary, vname, ret;
    ASN1_STRING *value;

    GetX509Name(self, name);
    entries = X509_NAME_entry_count(name);
    ret = rb_ary_new_capa(entries);
    for (i=0; i<entries; i++) {
        if (!(entry = X509_NAME_get_entry(name, i))) {
            ossl_raise(eX509NameError, NULL);
        }
        if (!i2t_ASN1_OBJECT(long_name, sizeof(long_name),
                             X509_NAME_ENTRY_get_object(entry))) {
            ossl_raise(eX509NameError, NULL);
        }
        nid = OBJ_ln2nid(long_name);
        if (nid == NID_undef) {
            vname = rb_str_new2((const char *) &long_name);
        } else {
            short_name = OBJ_nid2sn(nid);
            vname = rb_str_new2(short_name); /*do not free*/
        }
        value = X509_NAME_ENTRY_get_data(entry);
        ary = rb_ary_new3(3, vname, asn1str_to_str(value), INT2NUM(value->type));
        rb_ary_push(ret, ary);
    }
    return ret;
}

to_der → string

Converts the name to DER encoding

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;
}

to_s → string

to_s(format) → string

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

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").

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]));
}

to_utf8 → string

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

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;
}