Class: OpenSSL::X509::Store

Inherits:
Object
  • Object
show all
Defined in:
ossl_x509store.c,
ossl_x509store.c

Overview

The X509 certificate store holds trusted CA certificates used to verify peer certificates.

The easiest way to create a useful certificate store is:

cert_store = OpenSSL::X509::Store.new
cert_store.set_default_paths

This will use your system’s built-in certificates.

If your system does not have a default set of certificates you can obtain a set extracted from Mozilla CA certificate store by cURL maintainers here: curl.haxx.se/docs/caextract.html (You may wish to use the firefox-db2pem.sh script to extract the certificates from a local install to avoid man-in-the-middle attacks.)

After downloading or generating a cacert.pem from the above link you can create a certificate store from the pem file like this:

cert_store = OpenSSL::X509::Store.new
cert_store.add_file 'cacert.pem'

The certificate store can be used with an SSLSocket like this:

ssl_context = OpenSSL::SSL::SSLContext.new
ssl_context.verify_mode = OpenSSL::SSL::VERIFY_PEER
ssl_context.cert_store = cert_store

tcp_socket = TCPSocket.open 'example.com', 443

ssl_socket = OpenSSL::SSL::SSLSocket.new tcp_socket, ssl_context

Instance Method Summary collapse

Constructor Details

#X509::Store.new ⇒ Object

Creates a new X509::Store.



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# File 'ossl_x509store.c', line 190

static VALUE
ossl_x509store_initialize(int argc, VALUE *argv, VALUE self)
{
    X509_STORE *store;

/* BUG: This method takes any number of arguments but appears to ignore them. */
    GetX509Store(self, store);
#if !defined(HAVE_OPAQUE_OPENSSL)
    /* [Bug #405] [Bug #1678] [Bug #3000]; already fixed? */
    store->ex_data.sk = NULL;
#endif
    X509_STORE_set_verify_cb(store, x509store_verify_cb);
    ossl_x509store_set_vfy_cb(self, Qnil);

    /* last verification status */
    rb_iv_set(self, "@error", Qnil);
    rb_iv_set(self, "@error_string", Qnil);
    rb_iv_set(self, "@chain", Qnil);
    rb_iv_set(self, "@time", Qnil);

    return self;
}

Instance Method Details

#add_cert(cert) ⇒ Object

Adds the OpenSSL::X509::Certificate cert to the certificate store.



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# File 'ossl_x509store.c', line 384

static VALUE
ossl_x509store_add_cert(VALUE self, VALUE arg)
{
    X509_STORE *store;
    X509 *cert;

    cert = GetX509CertPtr(arg); /* NO NEED TO DUP */
    GetX509Store(self, store);
    if (X509_STORE_add_cert(store, cert) != 1){
        ossl_raise(eX509StoreError, NULL);
    }

    return self;
}

#add_crl(crl) ⇒ self

Adds the OpenSSL::X509::CRL crl to the store.

Returns:

  • (self) 


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# File 'ossl_x509store.c', line 405

static VALUE
ossl_x509store_add_crl(VALUE self, VALUE arg)
{
    X509_STORE *store;
    X509_CRL *crl;

    crl = GetX509CRLPtr(arg); /* NO NEED TO DUP */
    GetX509Store(self, store);
    if (X509_STORE_add_crl(store, crl) != 1){
        ossl_raise(eX509StoreError, NULL);
    }

    return self;
}

#add_file(file) ⇒ self

Adds the certificates in file to the certificate store. file is the path to the file, and the file contains one or more certificates in PEM format concatenated together.

Returns:

  • (self) 


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# File 'ossl_x509store.c', line 299

static VALUE
ossl_x509store_add_file(VALUE self, VALUE file)
{
    X509_STORE *store;
    X509_LOOKUP *lookup;
    char *path = NULL;

    if(file != Qnil){
	path = StringValueCStr(file);
    }
    GetX509Store(self, store);
    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
    if(lookup == NULL) ossl_raise(eX509StoreError, NULL);
    if(X509_LOOKUP_load_file(lookup, path, X509_FILETYPE_PEM) != 1){
        ossl_raise(eX509StoreError, NULL);
    }
#if OPENSSL_VERSION_NUMBER < 0x10101000 || defined(LIBRESSL_VERSION_NUMBER)
    /*
     * X509_load_cert_crl_file() which is called from X509_LOOKUP_load_file()
     * did not check the return value of X509_STORE_add_{cert,crl}(), leaking
     * "cert already in hash table" errors on the error queue, if duplicate
     * certificates are found. This will be fixed by OpenSSL 1.1.1.
     */
    ossl_clear_error();
#endif

    return self;
}

#add_path(path) ⇒ self

Adds path as the hash dir to be looked up by the store.

Returns:

  • (self) 


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# File 'ossl_x509store.c', line 334

static VALUE
ossl_x509store_add_path(VALUE self, VALUE dir)
{
    X509_STORE *store;
    X509_LOOKUP *lookup;
    char *path = NULL;

    if(dir != Qnil){
	path = StringValueCStr(dir);
    }
    GetX509Store(self, store);
    lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
    if(lookup == NULL) ossl_raise(eX509StoreError, NULL);
    if(X509_LOOKUP_add_dir(lookup, path, X509_FILETYPE_PEM) != 1){
        ossl_raise(eX509StoreError, NULL);
    }

    return self;
}

#flags=(flags) ⇒ Object

Sets flags to the Store. flags consists of zero or more of the constants defined in with name V_FLAG_* or’ed together.



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# File 'ossl_x509store.c', line 220

static VALUE
ossl_x509store_set_flags(VALUE self, VALUE flags)
{
    X509_STORE *store;
    long f = NUM2LONG(flags);

    GetX509Store(self, store);
    X509_STORE_set_flags(store, f);

    return flags;
}

#purpose=(purpose) ⇒ Object

Sets the store’s purpose to purpose. If specified, the verifications on the store will check every untrusted certificate’s extensions are consistent with the purpose. The purpose is specified by constants:

  • X509::PURPOSE_SSL_CLIENT

  • X509::PURPOSE_SSL_SERVER

  • X509::PURPOSE_NS_SSL_SERVER

  • X509::PURPOSE_SMIME_SIGN

  • X509::PURPOSE_SMIME_ENCRYPT

  • X509::PURPOSE_CRL_SIGN

  • X509::PURPOSE_ANY

  • X509::PURPOSE_OCSP_HELPER

  • X509::PURPOSE_TIMESTAMP_SIGN



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# File 'ossl_x509store.c', line 250

static VALUE
ossl_x509store_set_purpose(VALUE self, VALUE purpose)
{
    X509_STORE *store;
    int p = NUM2INT(purpose);

    GetX509Store(self, store);
    X509_STORE_set_purpose(store, p);

    return purpose;
}

#set_default_paths ⇒ Object

Configures store to look up CA certificates from the system default certificate store as needed basis. The location of the store can usually be determined by:

  • OpenSSL::X509::DEFAULT_CERT_FILE

  • OpenSSL::X509::DEFAULT_CERT_DIR



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# File 'ossl_x509store.c', line 365

static VALUE
ossl_x509store_set_default_paths(VALUE self)
{
    X509_STORE *store;

    GetX509Store(self, store);
    if (X509_STORE_set_default_paths(store) != 1){
        ossl_raise(eX509StoreError, NULL);
    }

    return Qnil;
}

#time=(time) ⇒ Object

Sets the time to be used in verifications.



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# File 'ossl_x509store.c', line 284

static VALUE
ossl_x509store_set_time(VALUE self, VALUE time)
{
    rb_iv_set(self, "@time", time);
    return time;
}

#trust=(trust) ⇒ Object 



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# File 'ossl_x509store.c', line 266

static VALUE
ossl_x509store_set_trust(VALUE self, VALUE trust)
{
    X509_STORE *store;
    int t = NUM2INT(trust);

    GetX509Store(self, store);
    X509_STORE_set_trust(store, t);

    return trust;
}

#verify(cert, chain = nil) ⇒ Object

Performs a certificate verification on the OpenSSL::X509::Certificate cert.

chain can be an array of OpenSSL::X509::Certificate that is used to construct the certificate chain.

If a block is given, it overrides the callback set by #verify_callback=.

After finishing the verification, the error information can be retrieved by #error, #error_string, and the resulting complete certificate chain can be retrieved by #chain.



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# File 'ossl_x509store.c', line 439

static VALUE
ossl_x509store_verify(int argc, VALUE *argv, VALUE self)
{
    VALUE cert, chain;
    VALUE ctx, proc, result;

    rb_scan_args(argc, argv, "11", &cert, &chain);
    ctx = rb_funcall(cX509StoreContext, rb_intern("new"), 3, self, cert, chain);
    proc = rb_block_given_p() ?  rb_block_proc() :
	   rb_iv_get(self, "@verify_callback");
    rb_iv_set(ctx, "@verify_callback", proc);
    result = rb_funcall(ctx, rb_intern("verify"), 0);

    rb_iv_set(self, "@error", ossl_x509stctx_get_err(ctx));
    rb_iv_set(self, "@error_string", ossl_x509stctx_get_err_string(ctx));
    rb_iv_set(self, "@chain", ossl_x509stctx_get_chain(ctx));

    return result;
}

#verify_callback=(cb) ⇒ Object

General callback for OpenSSL verify



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# File 'ossl_x509store.c', line 171

static VALUE
ossl_x509store_set_vfy_cb(VALUE self, VALUE cb)
{
    X509_STORE *store;

    GetX509Store(self, store);
    X509_STORE_set_ex_data(store, store_ex_verify_cb_idx, (void *)cb);
    rb_iv_set(self, "@verify_callback", cb);

    return cb;
}