# class OpenSSL::X509::Extension

### Public Class Methods

OpenSSL::X509::Extension.new(der) click to toggle source
OpenSSL::X509::Extension.new(oid, value)
OpenSSL::X509::Extension.new(oid, value, critical)

Creates an X509 extension.

The extension may be created from der data or from an extension oid and value. The oid may be either an OID or an extension name. If critical is `true` the extension is marked critical.

    static VALUE
    ossl_x509ext_initialize(int argc, VALUE *argv, VALUE self)
    {
        VALUE oid, value, critical;
        const unsigned char *p;
        X509_EXTENSION *ext, *x;

        GetX509Ext(self, ext);
        if(rb_scan_args(argc, argv, "12", &oid, &value, &critical) == 1){
            oid = ossl_to_der_if_possible(oid);
            StringValue(oid);
            p = (unsigned char *)RSTRING_PTR(oid);
            x = d2i_X509_EXTENSION(&ext, &p, RSTRING_LEN(oid));
            DATA_PTR(self) = ext;
            if(!x)
                ossl_raise(eX509ExtError, NULL);
            return self;
        }
        rb_funcall(self, rb_intern("oid="), 1, oid);
        rb_funcall(self, rb_intern("value="), 1, value);
        if(argc > 2) rb_funcall(self, rb_intern("critical="), 1, critical);

        return self;
    }

### Public Instance Methods

==(other) click to toggle source

    # File ext/openssl/lib/openssl/x509.rb, line 43
    def ==(other)
      return false unless Extension === other
      to_der == other.to_der
    end

critical=(p1) click to toggle source

    static VALUE
    ossl_x509ext_set_critical(VALUE self, VALUE flag)
    {
        X509_EXTENSION *ext;

        GetX509Ext(self, ext);
        X509_EXTENSION_set_critical(ext, RTEST(flag) ? 1 : 0);

        return flag;
    }

critical?() click to toggle source

    static VALUE
    ossl_x509ext_get_critical(VALUE obj)
    {
        X509_EXTENSION *ext;

        GetX509Ext(obj, ext);
        return X509_EXTENSION_get_critical(ext) ? Qtrue : Qfalse;
    }

initialize_copy(p1) click to toggle source

    static VALUE
    ossl_x509ext_initialize_copy(VALUE self, VALUE other)
    {
        X509_EXTENSION *ext, *ext_other, *ext_new;

        rb_check_frozen(self);
        GetX509Ext(self, ext);
        GetX509Ext(other, ext_other);

        ext_new = X509_EXTENSION_dup(ext_other);
        if (!ext_new)
            ossl_raise(eX509ExtError, "X509_EXTENSION_dup");

        SetX509Ext(self, ext_new);
        X509_EXTENSION_free(ext);

        return self;
    }

oid() click to toggle source

    static VALUE
    ossl_x509ext_get_oid(VALUE obj)
    {
        X509_EXTENSION *ext;
        ASN1_OBJECT *extobj;
        BIO *out;
        VALUE ret;
        int nid;

        GetX509Ext(obj, ext);
        extobj = X509_EXTENSION_get_object(ext);
        if ((nid = OBJ_obj2nid(extobj)) != NID_undef)
            ret = rb_str_new2(OBJ_nid2sn(nid));
        else{
            if (!(out = BIO_new(BIO_s_mem())))
                ossl_raise(eX509ExtError, NULL);
            i2a_ASN1_OBJECT(out, extobj);
            ret = ossl_membio2str(out);
        }

        return ret;
    }

oid=(p1) click to toggle source

    static VALUE
    ossl_x509ext_set_oid(VALUE self, VALUE oid)
    {
        X509_EXTENSION *ext;
        ASN1_OBJECT *obj;

        GetX509Ext(self, ext);
        obj = OBJ_txt2obj(StringValueCStr(oid), 0);
        if (!obj)
            ossl_raise(eX509ExtError, "OBJ_txt2obj");
        if (!X509_EXTENSION_set_object(ext, obj)) {
            ASN1_OBJECT_free(obj);
            ossl_raise(eX509ExtError, "X509_EXTENSION_set_object");
        }
        ASN1_OBJECT_free(obj);

        return oid;
    }

to_a() click to toggle source

    # File ext/openssl/lib/openssl/x509.rb, line 59
    def to_a
      [ self.oid, self.value, self.critical? ]
    end

to_der() click to toggle source

    static VALUE
    ossl_x509ext_to_der(VALUE obj)
    {
        X509_EXTENSION *ext;
        unsigned char *p;
        long len;
        VALUE str;

        GetX509Ext(obj, ext);
        if((len = i2d_X509_EXTENSION(ext, NULL)) <= 0)
            ossl_raise(eX509ExtError, NULL);
        str = rb_str_new(0, len);
        p = (unsigned char *)RSTRING_PTR(str);
        if(i2d_X509_EXTENSION(ext, &p) < 0)
            ossl_raise(eX509ExtError, NULL);
        ossl_str_adjust(str, p);

        return str;
    }

to_h() click to toggle source

    # File ext/openssl/lib/openssl/x509.rb, line 55
    def to_h # {"oid"=>sn|ln, "value"=>value, "critical"=>true|false}
      {"oid"=>self.oid,"value"=>self.value,"critical"=>self.critical?}
    end

to_s() click to toggle source

    # File ext/openssl/lib/openssl/x509.rb, line 48
    def to_s # "oid = critical, value"
      str = self.oid
      str << " = "
      str << "critical, " if self.critical?
      str << self.value.gsub(/\n/, ", ")
    end

value() click to toggle source

    static VALUE
    ossl_x509ext_get_value(VALUE obj)
    {
        X509_EXTENSION *ext;
        BIO *out;
        VALUE ret;

        GetX509Ext(obj, ext);
        if (!(out = BIO_new(BIO_s_mem())))
            ossl_raise(eX509ExtError, NULL);
        if (!X509V3_EXT_print(out, ext, 0, 0))
            ASN1_STRING_print(out, (ASN1_STRING *)X509_EXTENSION_get_data(ext));
        ret = ossl_membio2str(out);

        return ret;
    }

value=(p1) click to toggle source

    static VALUE
    ossl_x509ext_set_value(VALUE self, VALUE data)
    {
        X509_EXTENSION *ext;
        ASN1_OCTET_STRING *asn1s;

        GetX509Ext(self, ext);
        data = ossl_to_der_if_possible(data);
        StringValue(data);
        asn1s = X509_EXTENSION_get_data(ext);

        if (!ASN1_OCTET_STRING_set(asn1s, (unsigned char *)RSTRING_PTR(data),
                                   RSTRING_LENINT(data))) {
            ossl_raise(eX509ExtError, "ASN1_OCTET_STRING_set");
        }

        return data;
    }