Implement STS profile serialisation and deserialisation.

src/common/common.vcxproj

@@ -36,6 +36,7 @@
     <ClInclude Include="server.h" />
     <ClInclude Include="servlist.h" />
     <ClInclude Include="ssl.h" />
+    <ClInclude Include="sts.h" />
     <ClInclude Include="sysinfo\sysinfo.h" />
     <ClInclude Include="text.h" />
     <ClInclude Include="$(HexChatLib)textenums.h" />
@@ -69,6 +70,7 @@
     <ClCompile Include="server.c" />
     <ClCompile Include="servlist.c" />
     <ClCompile Include="ssl.c" />
+    <ClCompile Include="sts.c" />
     <ClCompile Include="sysinfo\win32\backend.c" />
     <ClCompile Include="text.c" />
     <ClCompile Include="tree.c" />

src/common/common.vcxproj.filters

@@ -74,6 +74,9 @@
     <ClInclude Include="ssl.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="sts.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="text.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -172,6 +175,9 @@
     <ClCompile Include="ssl.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="sts.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="text.c">
       <Filter>Source Files</Filter>
     </ClCompile>

src/common/hexchat.c

@@ -48,6 +48,7 @@
 #include "notify.h"
 #include "server.h"
 #include "servlist.h"
+#include "sts.h"
 #include "outbound.h"
 #include "text.h"
 #include "url.h"
@@ -844,6 +845,7 @@ xchat_init (void)
 	sound_load ();
 	notify_load ();
 	ignore_load ();
+	sts_load ();
 
 	g_snprintf (buf, sizeof (buf),
 		"NAME %s~%s~\n"				"CMD query %%s\n\n"\
@@ -996,6 +998,7 @@ hexchat_exit (void)
 	sound_save ();
 	notify_save ();
 	ignore_save ();
+	sts_save ();
 	free_sessions ();
 	chanopt_save_all (TRUE);
 	servlist_cleanup ();

src/common/meson.build

@@ -17,6 +17,7 @@ common_sources = [
   'proto-irc.c',
   'server.c',
   'servlist.c',
+  'sts.c',
 	'text.c',
   'tree.c',
   'url.c',

src/common/sts.c

@@ -0,0 +1,94 @@
+/* HexChat
+ * Copyright (C) 1998-2010 Peter Zelezny.
+ * Copyright (C) 2009-2013 Berke Viktor.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <fcntl.h>
+#include <time.h>
+
+#include "cfgfiles.h"
+#include "sts.h"
+#include "util.h"
+
+#define STS_CONFIG_FILE "sts.conf"
+
+GSList *profiles = NULL;
+
+void
+sts_load (void)
+{
+	char buf[256];
+	int fh;
+	struct sts_profile *profile;
+
+	fh = hexchat_open_file (STS_CONFIG_FILE, O_RDONLY, 0, 0);
+	if (fh < 0)
+		return; /* Filesystem not readable. */
+
+	while (waitline (fh, buf, sizeof buf, FALSE) != -1)
+	{
+		profile = sts_new ();
+		if (sscanf (buf, "%s %u %ld", profile->host, &profile->port, &profile->expiry) != 3)
+		{
+			/* Malformed profile; drop it. */
+			g_free (profile);
+			continue;
+		}
+
+		profiles = g_slist_append (profiles, profile);
+	}
+}
+
+struct sts_profile *
+sts_new (void)
+{
+	struct sts_profile *profile;
+
+	profile = malloc (sizeof (struct sts_profile));
+	profile->host[0] = 0;
+	profile->port = 0;
+	profile->expiry = 0;
+	return profile;
+}
+
+void
+sts_save (void)
+{
+	char buf[512];
+	int fh;
+	const GSList *next;
+	struct sts_profile *nextprofile;
+	time_t now;
+
+	fh = hexchat_open_file (STS_CONFIG_FILE, O_TRUNC | O_WRONLY | O_CREAT, 0600, XOF_DOMODE);
+	if (fh < 0)
+		return; /* Filesystem not writable. */
+
+	now = time (NULL);
+	for (next = profiles; next; next = profiles->next)
+	{
+		nextprofile = (struct sts_profile *)next->data;
+		if (now >= nextprofile->expiry)
+			continue; /* Profile has expired. */
+
+		g_snprintf (buf, sizeof buf, "%s %u %ld\n", nextprofile->host, nextprofile->port,
+			(unsigned long)nextprofile->expiry);
+		write (fh, buf, strlen (buf));
+	}
+
+	close (fh);
+}

src/common/sts.h

@@ -0,0 +1,52 @@
+/* HexChat
+ * Copyright (C) 1998-2010 Peter Zelezny.
+ * Copyright (C) 2009-2013 Berke Viktor.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef HEXCHAT_STS_H
+#define HEXCHAT_STS_H
+
+#include <time.h>
+
+#include <glib.h>
+
+/* Encapsulates a STS profile.
+ *
+ * See https://ircv3.net/specs/extensions/sts
+ */
+struct sts_profile
+{
+	/* The hostname the profile applies to. */
+	char host[256];
+
+	/* The port all secure connections should happen on. */
+	unsigned int port;
+
+	/* The time at which this STS profile expires. */
+	time_t expiry;
+};
+
+/* Loads STS profiles from sts.conf */
+void sts_load (void);
+
+/* Creates a new empty STS profile. */
+struct sts_profile * sts_new (void);
+
+/* Saves STS profiles to sts.conf */
+void sts_save (void);
+
+#endif