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/*
* Copyright (C) 2004-2007 Technorama Ltd. <oss-ruby@technorama.net>
*/
#include "ossl.h"
VALUE cSSLSession;
static VALUE eSSLSession;
static void
ossl_ssl_session_free(void *ptr)
{
SSL_SESSION_free(ptr);
}
const rb_data_type_t ossl_ssl_session_type = {
"OpenSSL/SSL/Session",
{
0, ossl_ssl_session_free,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY,
};
static VALUE ossl_ssl_session_alloc(VALUE klass)
{
return TypedData_Wrap_Struct(klass, &ossl_ssl_session_type, NULL);
}
/*
* call-seq:
* Session.new(ssl_socket) -> Session
* Session.new(string) -> Session
*
* Creates a new Session object from an instance of SSLSocket or DER/PEM encoded
* String.
*/
static VALUE ossl_ssl_session_initialize(VALUE self, VALUE arg1)
{
SSL_SESSION *ctx = NULL;
if (RDATA(self)->data)
ossl_raise(eSSLSession, "SSL Session already initialized");
if (rb_obj_is_instance_of(arg1, cSSLSocket)) {
SSL *ssl;
GetSSL(arg1, ssl);
if ((ctx = SSL_get1_session(ssl)) == NULL)
ossl_raise(eSSLSession, "no session available");
} else {
BIO *in = ossl_obj2bio(arg1);
ctx = PEM_read_bio_SSL_SESSION(in, NULL, NULL, NULL);
if (!ctx) {
OSSL_BIO_reset(in);
ctx = d2i_SSL_SESSION_bio(in, NULL);
}
BIO_free(in);
if (!ctx)
ossl_raise(rb_eArgError, "unknown type");
}
/* should not happen */
if (ctx == NULL)
ossl_raise(eSSLSession, "ctx not set - internal error");
RDATA(self)->data = ctx;
return self;
}
static VALUE
ossl_ssl_session_initialize_copy(VALUE self, VALUE other)
{
SSL_SESSION *sess, *sess_other, *sess_new;
rb_check_frozen(self);
sess = RTYPEDDATA_DATA(self); /* XXX */
SafeGetSSLSession(other, sess_other);
sess_new = ASN1_dup((i2d_of_void *)i2d_SSL_SESSION, (d2i_of_void *)d2i_SSL_SESSION,
(char *)sess_other);
if (!sess_new)
ossl_raise(eSSLSession, "ASN1_dup");
RTYPEDDATA_DATA(self) = sess_new;
SSL_SESSION_free(sess);
return self;
}
static int
ossl_SSL_SESSION_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
{
unsigned int a_len;
const unsigned char *a_sid = SSL_SESSION_get_id(a, &a_len);
unsigned int b_len;
const unsigned char *b_sid = SSL_SESSION_get_id(b, &b_len);
if (SSL_SESSION_get_protocol_version(a) != SSL_SESSION_get_protocol_version(b))
return 1;
if (a_len != b_len)
return 1;
return CRYPTO_memcmp(a_sid, b_sid, a_len);
}
/*
* call-seq:
* session1 == session2 -> boolean
*
* Returns +true+ if the two Session is the same, +false+ if not.
*/
static VALUE ossl_ssl_session_eq(VALUE val1, VALUE val2)
{
SSL_SESSION *ctx1, *ctx2;
GetSSLSession(val1, ctx1);
SafeGetSSLSession(val2, ctx2);
switch (ossl_SSL_SESSION_cmp(ctx1, ctx2)) {
case 0: return Qtrue;
default: return Qfalse;
}
}
/*
* call-seq:
* session.time -> Time
*
* Returns the time at which the session was established.
*/
static VALUE
ossl_ssl_session_get_time(VALUE self)
{
SSL_SESSION *ctx;
long t;
GetSSLSession(self, ctx);
t = SSL_SESSION_get_time(ctx);
if (t == 0)
return Qnil;
return rb_funcall(rb_cTime, rb_intern("at"), 1, LONG2NUM(t));
}
/*
* call-seq:
* session.timeout -> Integer
*
* Returns the timeout value set for the session, in seconds from the
* established time.
*
*/
static VALUE
ossl_ssl_session_get_timeout(VALUE self)
{
SSL_SESSION *ctx;
long t;
GetSSLSession(self, ctx);
t = SSL_SESSION_get_timeout(ctx);
return LONG2NUM(t);
}
/*
* call-seq:
* session.time = time
* session.time = integer
*
* Sets start time of the session. Time resolution is in seconds.
*
*/
static VALUE ossl_ssl_session_set_time(VALUE self, VALUE time_v)
{
SSL_SESSION *ctx;
long t;
GetSSLSession(self, ctx);
if (rb_obj_is_instance_of(time_v, rb_cTime)) {
time_v = rb_funcall(time_v, rb_intern("to_i"), 0);
}
t = NUM2LONG(time_v);
SSL_SESSION_set_time(ctx, t);
return ossl_ssl_session_get_time(self);
}
/*
* call-seq:
* session.timeout = integer
*
* Sets how long until the session expires in seconds.
*/
static VALUE ossl_ssl_session_set_timeout(VALUE self, VALUE time_v)
{
SSL_SESSION *ctx;
long t;
GetSSLSession(self, ctx);
t = NUM2LONG(time_v);
SSL_SESSION_set_timeout(ctx, t);
return ossl_ssl_session_get_timeout(self);
}
/*
* call-seq:
* session.id -> String
*
* Returns the Session ID.
*/
static VALUE ossl_ssl_session_get_id(VALUE self)
{
SSL_SESSION *ctx;
const unsigned char *p = NULL;
unsigned int i = 0;
GetSSLSession(self, ctx);
p = SSL_SESSION_get_id(ctx, &i);
return rb_str_new((const char *) p, i);
}
/*
* call-seq:
* session.to_der -> String
*
* Returns an ASN1 encoded String that contains the Session object.
*/
static VALUE ossl_ssl_session_to_der(VALUE self)
{
SSL_SESSION *ctx;
unsigned char *p;
int len;
VALUE str;
GetSSLSession(self, ctx);
len = i2d_SSL_SESSION(ctx, NULL);
if (len <= 0) {
ossl_raise(eSSLSession, "i2d_SSL_SESSION");
}
str = rb_str_new(0, len);
p = (unsigned char *)RSTRING_PTR(str);
i2d_SSL_SESSION(ctx, &p);
ossl_str_adjust(str, p);
return str;
}
/*
* call-seq:
* session.to_pem -> String
*
* Returns a PEM encoded String that contains the Session object.
*/
static VALUE ossl_ssl_session_to_pem(VALUE self)
{
SSL_SESSION *ctx;
BIO *out;
GetSSLSession(self, ctx);
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(eSSLSession, "BIO_s_mem()");
}
if (!PEM_write_bio_SSL_SESSION(out, ctx)) {
BIO_free(out);
ossl_raise(eSSLSession, "SSL_SESSION_print()");
}
return ossl_membio2str(out);
}
/*
* call-seq:
* session.to_text -> String
*
* Shows everything in the Session object. This is for diagnostic purposes.
*/
static VALUE ossl_ssl_session_to_text(VALUE self)
{
SSL_SESSION *ctx;
BIO *out;
GetSSLSession(self, ctx);
if (!(out = BIO_new(BIO_s_mem()))) {
ossl_raise(eSSLSession, "BIO_s_mem()");
}
if (!SSL_SESSION_print(out, ctx)) {
BIO_free(out);
ossl_raise(eSSLSession, "SSL_SESSION_print()");
}
return ossl_membio2str(out);
}
void Init_ossl_ssl_session(void)
{
#if 0
mOSSL = rb_define_module("OpenSSL");
mSSL = rb_define_module_under(mOSSL, "SSL");
eOSSLError = rb_define_class_under(mOSSL, "OpenSSLError", rb_eStandardError);
#endif
cSSLSession = rb_define_class_under(mSSL, "Session", rb_cObject);
eSSLSession = rb_define_class_under(cSSLSession, "SessionError", eOSSLError);
rb_define_alloc_func(cSSLSession, ossl_ssl_session_alloc);
rb_define_method(cSSLSession, "initialize", ossl_ssl_session_initialize, 1);
rb_define_method(cSSLSession, "initialize_copy", ossl_ssl_session_initialize_copy, 1);
rb_define_method(cSSLSession, "==", ossl_ssl_session_eq, 1);
rb_define_method(cSSLSession, "time", ossl_ssl_session_get_time, 0);
rb_define_method(cSSLSession, "time=", ossl_ssl_session_set_time, 1);
rb_define_method(cSSLSession, "timeout", ossl_ssl_session_get_timeout, 0);
rb_define_method(cSSLSession, "timeout=", ossl_ssl_session_set_timeout, 1);
rb_define_method(cSSLSession, "id", ossl_ssl_session_get_id, 0);
rb_define_method(cSSLSession, "to_der", ossl_ssl_session_to_der, 0);
rb_define_method(cSSLSession, "to_pem", ossl_ssl_session_to_pem, 0);
rb_define_method(cSSLSession, "to_text", ossl_ssl_session_to_text, 0);
}
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