class OpenSSL::X509::Attribute - Documentation for Ruby 4.0
Description: Documentation for the OpenSSL::X509::Attribute class
Keywords: ruby,class,OpenSSL::X509::Attribute

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# class OpenSSL::X509::Attribute

### Public Class Methods

new(oid [, value]) → attr
Source

    static VALUE
    ossl_x509attr_initialize(int argc, VALUE *argv, VALUE self)
    {
        VALUE oid, value;
        X509_ATTRIBUTE *attr, *x;
        const unsigned char *p;

        GetX509Attr(self, attr);
        if(rb_scan_args(argc, argv, "11", &oid, &value) == 1){
            oid = ossl_to_der_if_possible(oid);
            StringValue(oid);
            p = (unsigned char *)RSTRING_PTR(oid);
            x = d2i_X509_ATTRIBUTE(&attr, &p, RSTRING_LEN(oid));
            DATA_PTR(self) = attr;
            if(!x){
                ossl_raise(eX509AttrError, NULL);
            }
            return self;
        }
        rb_funcall(self, rb_intern("oid="), 1, oid);
        rb_funcall(self, rb_intern("value="), 1, value);

        return self;
    }

### Public Instance Methods

== (other)
Source

    # File ext/openssl/lib/openssl/x509.rb, line 330
    def ==(other)
      return false unless Attribute === other
      to_der == other.to_der
    end

oid → string
Source

    static VALUE
    ossl_x509attr_get_oid(VALUE self)
    {
        X509_ATTRIBUTE *attr;

        GetX509Attr(self, attr);
        return ossl_asn1obj_to_string(X509_ATTRIBUTE_get0_object(attr));
    }

Returns the OID of the attribute. Returns the short name or the dotted decimal notation.

oid = string → string
Source

    static VALUE
    ossl_x509attr_set_oid(VALUE self, VALUE oid)
    {
        X509_ATTRIBUTE *attr;
        ASN1_OBJECT *obj;
        char *s;

        GetX509Attr(self, attr);
        s = StringValueCStr(oid);
        obj = OBJ_txt2obj(s, 0);
        if(!obj) ossl_raise(eX509AttrError, NULL);
        if (!X509_ATTRIBUTE_set1_object(attr, obj)) {
            ASN1_OBJECT_free(obj);
            ossl_raise(eX509AttrError, "X509_ATTRIBUTE_set1_object");
        }
        ASN1_OBJECT_free(obj);

        return oid;
    }

to_der → string
Source

    static VALUE
    ossl_x509attr_to_der(VALUE self)
    {
        X509_ATTRIBUTE *attr;
        VALUE str;
        int len;
        unsigned char *p;

        GetX509Attr(self, attr);
        if((len = i2d_X509_ATTRIBUTE(attr, NULL)) <= 0)
            ossl_raise(eX509AttrError, NULL);
        str = rb_str_new(0, len);
        p = (unsigned char *)RSTRING_PTR(str);
        if(i2d_X509_ATTRIBUTE(attr, &p) <= 0)
            ossl_raise(eX509AttrError, NULL);
        ossl_str_adjust(str, p);

        return str;
    }

value → asn1
Source

    static VALUE
    ossl_x509attr_get_value(VALUE self)
    {
        X509_ATTRIBUTE *attr;
        STACK_OF(ASN1_TYPE) *sk;
        VALUE str;
        int i, count, len;
        unsigned char *p;

        GetX509Attr(self, attr);
        /* there is no X509_ATTRIBUTE_get0_set() :( */
        if (!(sk = sk_ASN1_TYPE_new_null()))
            ossl_raise(eX509AttrError, "sk_new");

        count = X509_ATTRIBUTE_count(attr);
        for (i = 0; i < count; i++)
            sk_ASN1_TYPE_push(sk, (ASN1_TYPE *)X509_ATTRIBUTE_get0_type(attr, i));

        if ((len = i2d_ASN1_SET_ANY(sk, NULL)) <= 0) {
            sk_ASN1_TYPE_free(sk);
            ossl_raise(eX509AttrError, NULL);
        }
        str = rb_str_new(0, len);
        p = (unsigned char *)RSTRING_PTR(str);
        if (i2d_ASN1_SET_ANY(sk, &p) <= 0) {
            sk_ASN1_TYPE_free(sk);
            ossl_raise(eX509AttrError, NULL);
        }
        ossl_str_adjust(str, p);
        sk_ASN1_TYPE_free(sk);

        return rb_funcall(mASN1, rb_intern("decode"), 1, str);
    }

value = asn1 → asn1
Source

    static VALUE
    ossl_x509attr_set_value(VALUE self, VALUE value)
    {
        X509_ATTRIBUTE *attr;
        GetX509Attr(self, attr);

        OSSL_Check_Kind(value, cASN1Data);
        VALUE der = ossl_to_der(value);
        const unsigned char *p = (const unsigned char *)RSTRING_PTR(der);
        STACK_OF(ASN1_TYPE) *sk = d2i_ASN1_SET_ANY(NULL, &p, RSTRING_LEN(der));
        if (!sk)
            ossl_raise(eX509AttrError, "attribute value must be ASN1::Set");

        if (X509_ATTRIBUTE_count(attr)) { /* populated, reset first */
            const ASN1_OBJECT *obj = X509_ATTRIBUTE_get0_object(attr);
            X509_ATTRIBUTE *new_attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, 0, NULL, -1);
            if (!new_attr) {
                sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
                ossl_raise(eX509AttrError, "X509_ATTRIBUTE_create_by_OBJ");
            }
            SetX509Attr(self, new_attr);
            X509_ATTRIBUTE_free(attr);
            attr = new_attr;
        }

        for (int i = 0; i < sk_ASN1_TYPE_num(sk); i++) {
            ASN1_TYPE *a1type = sk_ASN1_TYPE_value(sk, i);
            if (!X509_ATTRIBUTE_set1_data(attr, ASN1_TYPE_get(a1type),
                                          a1type->value.ptr, -1)) {
                sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
                ossl_raise(eX509AttrError, "X509_ATTRIBUTE_set1_data");
            }
        }
        sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);

        return value;
    }