made some core modules library (libsylph).

git-svn-id: svn://sylpheed.sraoss.jp/sylpheed/trunk@528 ee746299-78ed-0310-b773-934348b2243d

1 files changed, 175 insertions, 0 deletions

diff --git a/libsylph/ssl.c b/libsylph/ssl.c
new file mode 100644
index 00000000..b57c60a9
--- /dev/null
+++ b/libsylph/ssl.c
@@ -0,0 +1,175 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999-2005 Hiroyuki Yamamoto
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#if USE_SSL
+
+#include "defs.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include "utils.h"
+#include "ssl.h"
+
+static SSL_CTX *ssl_ctx_SSLv23;
+static SSL_CTX *ssl_ctx_TLSv1;
+
+void ssl_init(void)
+{
+	gchar *certs_dir;
+
+	SSL_library_init();
+	SSL_load_error_strings();
+
+	certs_dir = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, "certs", NULL);
+	if (!is_dir_exist(certs_dir)) {
+		debug_print("%s doesn't exist, or not a directory.\n",
+			    certs_dir);
+		g_free(certs_dir);
+		certs_dir = NULL;
+	}
+
+	ssl_ctx_SSLv23 = SSL_CTX_new(SSLv23_client_method());
+	if (ssl_ctx_SSLv23 == NULL) {
+		debug_print(_("SSLv23 not available\n"));
+	} else {
+		debug_print(_("SSLv23 available\n"));
+		if (certs_dir &&
+		    !SSL_CTX_load_verify_locations(ssl_ctx_SSLv23, NULL,
+						   certs_dir))
+			g_warning("SSLv23 SSL_CTX_load_verify_locations failed.\n");
+	}
+
+	ssl_ctx_TLSv1 = SSL_CTX_new(TLSv1_client_method());
+	if (ssl_ctx_TLSv1 == NULL) {
+		debug_print(_("TLSv1 not available\n"));
+	} else {
+		debug_print(_("TLSv1 available\n"));
+		if (certs_dir &&
+		    !SSL_CTX_load_verify_locations(ssl_ctx_TLSv1, NULL,
+						   certs_dir))
+			g_warning("TLSv1 SSL_CTX_load_verify_locations failed.\n");
+	}
+
+	g_free(certs_dir);
+}
+
+void ssl_done(void)
+{
+	if (ssl_ctx_SSLv23) {
+		SSL_CTX_free(ssl_ctx_SSLv23);
+	}
+
+	if (ssl_ctx_TLSv1) {
+		SSL_CTX_free(ssl_ctx_TLSv1);
+	}
+}
+
+gboolean ssl_init_socket(SockInfo *sockinfo)
+{
+	return ssl_init_socket_with_method(sockinfo, SSL_METHOD_SSLv23);
+}
+
+gboolean ssl_init_socket_with_method(SockInfo *sockinfo, SSLMethod method)
+{
+	X509 *server_cert;
+	gint ret;
+
+	switch (method) {
+	case SSL_METHOD_SSLv23:
+		if (!ssl_ctx_SSLv23) {
+			g_warning(_("SSL method not available\n"));
+			return FALSE;
+		}
+		sockinfo->ssl = SSL_new(ssl_ctx_SSLv23);
+		break;
+	case SSL_METHOD_TLSv1:
+		if (!ssl_ctx_TLSv1) {
+			g_warning(_("SSL method not available\n"));
+			return FALSE;
+		}
+		sockinfo->ssl = SSL_new(ssl_ctx_TLSv1);
+		break;
+	default:
+		g_warning(_("Unknown SSL method *PROGRAM BUG*\n"));
+		return FALSE;
+		break;
+	}
+
+	if (sockinfo->ssl == NULL) {
+		g_warning(_("Error creating ssl context\n"));
+		return FALSE;
+	}
+
+	SSL_set_fd(sockinfo->ssl, sockinfo->sock);
+	if ((ret = SSL_connect(sockinfo->ssl)) == -1) {
+		g_warning(_("SSL connect failed (%s)\n"),
+			  ERR_error_string(ERR_get_error(), NULL));
+		return FALSE;
+	}
+
+	/* Get the cipher */
+
+	debug_print(_("SSL connection using %s\n"),
+		    SSL_get_cipher(sockinfo->ssl));
+
+	/* Get server's certificate (note: beware of dynamic allocation) */
+
+	if ((server_cert = SSL_get_peer_certificate(sockinfo->ssl)) != NULL) {
+		gchar *str;
+		glong verify_result;
+
+		debug_print(_("Server certificate:\n"));
+
+		if ((str = X509_NAME_oneline(X509_get_subject_name(server_cert), 0, 0)) != NULL) {
+			debug_print(_("  Subject: %s\n"), str);
+			g_free(str);
+		}
+
+		if ((str = X509_NAME_oneline(X509_get_issuer_name(server_cert), 0, 0)) != NULL) {
+			debug_print(_("  Issuer: %s\n"), str);
+			g_free(str);
+		}
+
+		verify_result = SSL_get_verify_result(sockinfo->ssl);
+		if (verify_result == X509_V_OK)
+			debug_print("SSL verify OK\n");
+		else
+			g_warning("%s: SSL certificate verify failed (%ld: %s)\n",
+				  sockinfo->hostname, verify_result,
+				  X509_verify_cert_error_string(verify_result));
+
+		X509_free(server_cert);
+	}
+
+	return TRUE;
+}
+
+void ssl_done_socket(SockInfo *sockinfo)
+{
+	if (sockinfo->ssl) {
+		SSL_free(sockinfo->ssl);
+	}
+}
+
+#endif /* USE_SSL */