Fixed utf8 parse issue.

Signed-off-by: Jan Vidar Krey <janvidar@extatic.org>

ChangeLog

@@ -1,4 +1,19 @@
+0.2.8:
+- Fix bug #13: getsockname() failure, use sockaddr from accept() instead.
+- Fix bug #10: Improve logging, ensure logs are machine readable.
+- Fix bug #12: asserts in adc_msg_parse -> enabled strict utf8 parsing.
+
+
 0.2.7:
+- Fixed a nasty crash (bug #11), Thanks Toast for finding it.
+- Fix bug #9 - net_get_peer_address() failure on CentOS/Xen configurations.
+- Write a log message if an operator reloads the config file.
+- Don't print OK or ERROR when using '-s' or '-S' show the configuration.
+- Cleanup credential string handling
+- Made sure "!help" only display accessible commands.
+- Cleanup in-hub command parsing
+- Fix a possible crash if multiple INF messages are sent during login.
+- Rewrote the mainloop to not use a timer.
 
 
 0.2.6:

GNUmakefile

@@ -32,7 +32,7 @@ BIN_EXT       ?= .exe
 else
 DESTDIR       ?= /
 UHUB_CONF_DIR ?= $(DESTDIR)/etc/uhub
-UHUB_PREFIX   ?= $(DESTDIR)/usr/
+UHUB_PREFIX   ?= $(DESTDIR)/usr/local
 CFLAGS        += -I/usr/local/include
 LDFLAGS       += -L/usr/local/lib
 BIN_EXT       ?=

admin/common.sh

@@ -6,25 +6,30 @@ else
 	HOST_MACHINE=`uname -m | tr [:upper:] [:lower:] | sed s/i686/i386/ | sed s/x86_64/amd64/ | sed s/ppc64/powerpc/`
 fi
 
+BINSUFFIX=
+MAKEARGS=
+MAKE=make
+WANTZIP=0
+
 if [ "${HOST_SYSTEM}" = "mingw32_nt-5.1" ]; then
 	HOST_SYSTEM=win32
-	BINARY=uhub.exe
+	BINSUFFIX=.exe
 	WANTZIP=1
-else
-	WANTZIP=0
-	BINARY=uhub
+	MAKEARGS="USE_BIGENDIAN=NO"
 fi
 
+BINARY=uhub${BINSUFFIX}
+
+if [ "${HOST_SYSTEM}" = "freebsd" ]; then
+	MAKE=gmake
+fi
 
 VERSION=`grep define\ VERSION version.h | cut -f 3 -d " " | tr -d [=\"=]`
 SNAPSHOT=`date '+%Y%m%d'`
 PACKAGE=uhub-${VERSION}
 PACKAGE_SRC=${PACKAGE}-src
 PACKAGE_BIN=${PACKAGE}-${HOST_SYSTEM}-${HOST_MACHINE}
-
-URL_ARCHIVE='build-archive:~/uhub/'
-URL_PUBLISH='domeneshop:~/www/downloads/uhub/'
-URL_SNAPSHOT='domeneshop:~/www/downloads/uhub/snapshots/'
+ARCHIVE='build-archive:~/www/downloads/uhub/'
 
 function export_source_directory
 {
@@ -51,15 +56,28 @@ function package_zips
 	gzip -c -9 $1.tar > $1.tar.gz
 	bzip2 -c -9 $1.tar > $1.tar.bz2
 	rm -f $1.tar
-	zip -q -9 -r $1.zip $2
+
+	if [ $WANTZIP -eq 1 ]; then
+		zip -q -9 -r $1.zip $2
+	fi
 }
 
 function export_sources
 {
-	export_source_directory
-	make autotest.c && cp autotest.c ${PACKAGE}/autotest.c
-	rm -Rf ${PACKAGE}/admin
+	if [ ! -d ${PACKAGE} ]; then
+		export_source_directory
+	fi
 
+	cd ${PACKAGE}
+	${MAKE} ${MAKEARGS} autotest.c
+	cd ..
+
+	if [ ! -f ${PACKAGE}/autotest.c ]; then
+		echo "Unable to create autotest.c, aborting..."
+		exit 1
+	fi
+
+	rm -Rf ${PACKAGE}/admin
 	package_zips ${PACKAGE_SRC} ${PACKAGE}
         
 	rm -Rf ${PACKAGE};
@@ -68,28 +86,51 @@ function export_sources
 
 function export_binaries
 {
-	export_source_directory
+	if [ ! -d ${PACKAGE} ]; then
+		export_source_directory
+	fi
+
+	cd ${PACKAGE}
+	${MAKE} ${MAKEARGS} RELEASE=YES
+	cd ..
+
+	if [ ! -x ${PACKAGE}/${BINARY} ]; then
+		echo "Packaging failed, no binary found..."
+		exit 1
+	fi
+
 	rm -Rf ${PACKAGE}/admin
 	rm -Rf ${PACKAGE}/autotest
 	rm -Rf ${PACKAGE}/src
+	rm -Rf ${PACKAGE}/debian
 	rm -f ${PACKAGE}/autotest.c
 	rm -f ${PACKAGE}/*akefile
 	rm -f ${PACKAGE}/version.h
 	rm -f ${PACKAGE}/doc/Doxyfile
 	rm -f ${PACKAGE}/doc/uhub.dot
-
-	make
-
-	if [ -x ${BINARY} ]; then
-		cp ${BINARY} ${PACKAGE}
-	else
-		echo "No binary found!"
-		exit 1
-	fi
+	rm -f ${PACKAGE}/libuhub*
 
 	package_zips ${PACKAGE_BIN} ${PACKAGE}
 
 	rm -Rf ${PACKAGE};
 }
 
+function upload_pkg
+{
+	if [ -f $1 ]; then
+		scp $1 ${ARCHIVE}
+	fi
+}
+
+function upload_packages
+{
+	upload_pkg ${PACKAGE_SRC}.tar.gz
+	upload_pkg ${PACKAGE_SRC}.tar.bz2
+	upload_pkg ${PACKAGE_SRC}.zip
+	upload_pkg ChangeLog-${VERSION}
+	upload_pkg ${PACKAGE_BIN}.tar.gz
+	upload_pkg ${PACKAGE_BIN}.tar.bz2
+	upload_pkg ${PACKAGE_BIN}.zip
+}
+
 

admin/export.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+export_source_directory

admin/release.sh

@@ -1,11 +0,0 @@
-#!/bin/bash
-
-# set -x
-
-ME=`dirname $0`
-. ${ME}/common.sh
-
-# Git Export
-export_sources
-export_binaries
-

admin/release_binaries.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+export_binaries

admin/release_sources.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+. admin/common.sh
+WANTZIP=1
+export_sources

admin/setup_archive.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+PUB="${HOME}/.ssh/id_rsa.pub"
+CFG="${HOME}/.ssh/config"
+
+if [ ! "`grep build-archive ${CFG}`" ]; then
+echo "Updating ssh config (${CFG})..."
+cat >> ${CFG} <<EOF
+
+Host build-archive
+	ForwardX11	no
+	HostName	login.domeneshop.no
+	User		extatic
+EOF
+else
+echo "ssh config seems OK (${CFG})"
+fi
+
+if [ ! -f ${PUB} ]; then
+	echo "No id_rsa.pub - run ssh-keygen"
+	exit 1
+fi
+
+echo "Copying public key (${PUB})..."
+cat ${PUB} | ssh build-archive "cat >> .ssh/authorized_keys"
+

admin/upload.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+upload_packages

autotest/test_eventqueue.tcc

@@ -2,7 +2,6 @@
 
 static struct event_queue* eq;
 static int eq_val;
-struct event* libevent_handle; 
 
 static void eq_callback(void* callback_data, struct event_data* event_data)
 {
@@ -17,8 +16,6 @@ EXO_TEST(eventqueue_init_1, {
 
 EXO_TEST(eventqueue_init_2, {
 	/* hack */
-	libevent_handle = eq->event;
-	eq->event = 0;
 	return eq->callback_data == &eq_val && eq->callback == eq_callback && eq->q1 && eq->q2 && !eq->locked;
 });
 
@@ -81,7 +78,6 @@ EXO_TEST(eventqueue_size_4, {
 });
 
 EXO_TEST(eventqueue_shutdown_1, {
-	eq->event = libevent_handle;
 	event_queue_shutdown(eq);
 	return 1;
 });

autotest/test_message.tcc

@@ -144,12 +144,29 @@ EXO_TEST(adc_message_parse_20, {
 	return ok;
 });
 
-
 EXO_TEST(adc_message_parse_21, {
 	struct adc_message* msg = adc_msg_parse_verify(g_user, "EMSG AAAC AAAB Hello\\sthere!\n", 29);
 	return msg == NULL;
 });
 
+EXO_TEST(adc_message_parse_22, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "\n", 0);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_23, {
+        struct adc_message* msg = adc_msg_parse_verify(g_user, "\r\n", 1);
+        return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_24, {
+        struct adc_message* msg = adc_msg_parse_verify(g_user, "EMSG AAAC\0AAAB Hello\\sthere!\n", 29);
+        return msg == NULL;
+});
+
+
+
+
 EXO_TEST(adc_message_add_arg_1, {
 	struct adc_message* msg = adc_msg_create(test_string1);
 	adc_msg_add_argument(msg, "XXwtf?");

autotest/test_misc.tcc

@@ -100,4 +100,12 @@ EXO_TEST(utf8_valid_3, { return is_valid_utf8("0123456789"); });
 EXO_TEST(utf8_valid_4, { return is_valid_utf8( (char[]) { 0x65, 0x00} ); });
 EXO_TEST(utf8_valid_5, { return !is_valid_utf8( (char[]) { 0xD8, 0x00} ); });
 
+EXO_TEST(utf8_valid_6, { return is_valid_utf8( (char[]) { 0x24, 0x00} ); });
+EXO_TEST(utf8_valid_7, { return !is_valid_utf8( (char[]) { 0xC2, 0x24, 0x00} ); });
+EXO_TEST(utf8_valid_8, { return is_valid_utf8( (char[]) { 0xC2, 0xA2, 0x00} ); });
+EXO_TEST(utf8_valid_9, { return is_valid_utf8( (char[]) { 0xE2, 0x82, 0xAC, 0x00} ); });
+EXO_TEST(utf8_valid_10, { return !is_valid_utf8( (char[]) { 0xC2, 0x32, 0x00} ); });
+EXO_TEST(utf8_valid_11, { return !is_valid_utf8( (char[]) { 0xE2, 0x82, 0x32, 0x00} ); });
+EXO_TEST(utf8_valid_12, { return !is_valid_utf8( (char[]) { 0xE2, 0x32, 0x82, 0x00} ); });
+
 

src/auth.c

@@ -23,7 +23,7 @@
 #define ACL_ADD_BOOL(S, L)    do { ret = check_cmd_bool(S,    L, line, line_count); if (ret != 0) return ret; } while(0)
 #define ACL_ADD_ADDR(S, L)    do { ret = check_cmd_addr(S,    L, line, line_count); if (ret != 0) return ret; } while(0)
 
-static const char* get_user_credential_string(enum user_credentials cred)
+const char* get_user_credential_string(enum user_credentials cred)
 {
 	switch (cred)
 	{

src/auth.h

@@ -48,6 +48,8 @@ enum user_credentials
  	cred_link,                 /**<<< "User is a link (not used currently)" */
 };
 
+const char* get_user_credential_string(enum user_credentials cred);
+
 struct user_access_info
 {
 	char* username;          /* name of user, cid or IP range */

src/commands.c

@@ -19,165 +19,175 @@
 
 #include "uhub.h"
 
-static int command_access_denied(struct user* user)
+typedef int (*command_handler)(struct user* user, const char* message);
+
+struct commands_handler
 {
-    struct adc_message* command;
-    char* buffer = adc_msg_escape("Access denied.");
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
-    return 0;
+	const char* prefix;
+	size_t length;
+	enum user_credentials cred;
+	command_handler handler;
+	const char* description;
+};
+
+static struct commands_handler command_handlers[];
+
+static void send_message(struct user* user, const char* message)
+{
+	char* buffer = adc_msg_escape(message);
+	struct adc_message* command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
+	adc_msg_add_argument(command, buffer);
+	route_to_user(user, command);
+	adc_msg_free(command);
+	hub_free(buffer);
+}
+
+static int command_access_denied(struct user* user, const char* command)
+{
+	char temp[64];
+	snprintf(temp, 64, "*** Access denied: \"%s\"", command);
+	send_message(user, temp);
+	return 0;
 }
 
 
 static int command_stats(struct user* user, const char* message)
 {
-    struct adc_message* command;
-
-    if (user->credentials < cred_super)
-	return command_access_denied(user);
-	
-    char temp[128];
-
-    snprintf(temp, 128, "*** Stats: %zu users, peak: %zu. Network (up/down): %d/%d KB/s, peak: %d/%d KB/s",
+	char temp[128];
+	snprintf(temp, 128, "*** Stats: %zu users, peak: %zu. Network (up/down): %d/%d KB/s, peak: %d/%d KB/s",
 	user->hub->users->count,
 	user->hub->users->count_peak,
 	(int) user->hub->stats.net_tx / 1024,
 	(int) user->hub->stats.net_rx / 1024,
 	(int) user->hub->stats.net_tx_peak / 1024,
 	(int) user->hub->stats.net_rx_peak / 1024);
-
-    char* buffer = adc_msg_escape(temp);
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
-    return 0;
+	
+	send_message(user, temp);
+	return 0;
 }
 
 
 static int command_help(struct user* user, const char* message)
 {
-    struct adc_message* command;
-    char* buffer = adc_msg_escape("\n"
-	"*** Available commands:\n"
-	"!help         - Show this help message\n"
-	"!stats        - Show hub stats (super)\n"
-	"!version      - Show this help message\n"
-	"!uptime       - Display hub uptime\n"
-	"!kick <user>  - Kick user (operator)\n"
-	);
-
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
+#define MAX_HELP_MSG 1024
+	size_t n;
+	char msg[MAX_HELP_MSG];
+	msg[0] = 0;
+	strcat(msg, "\n*** Available commands:\n");
+	
+	for (n = 0; command_handlers[n].prefix; n++)
+	{
+		if (command_handlers[n].cred <= user->credentials)
+		{
+			strcat(msg, command_handlers[n].prefix);
+			strcat(msg, " - ");
+			strcat(msg, command_handlers[n].description);
+			strcat(msg, "\n");
+		}
+	}
+	send_message(user, msg);
     return 0;
 }
 
 static int command_uptime(struct user* user, const char* message)
 {
-    struct adc_message* command;
-    char tmp[128];
-    size_t d;
-    size_t h;
-    size_t m;
-    size_t D = (size_t) difftime(time(0), user->hub->tm_started);
+	char tmp[128];
+	size_t d;
+	size_t h;
+	size_t m;
+	size_t D = (size_t) difftime(time(0), user->hub->tm_started);
 
-    d = D / (24 * 3600);
-    D = D % (24 * 3600);
-    h = D / 3600;
-    D = D % 3600;
-    m = D / 60;
+	d = D / (24 * 3600);
+	D = D % (24 * 3600);
+	h = D / 3600;
+	D = D % 3600;
+	m = D / 60;
 
-    tmp[0] = 0;
-    strcat(tmp, "*** Uptime: ");
-    
-    if (d)
-    {
-	strcat(tmp, uhub_itoa((int) d));
-	strcat(tmp, " day");
-	if (d != 1) strcat(tmp, "s");
-	strcat(tmp, ", ");
-    }
+	tmp[0] = 0;
+	strcat(tmp, "*** Uptime: ");
 
-    if (h < 10) strcat(tmp, "0");
-    strcat(tmp, uhub_itoa((int) h));
-    strcat(tmp, ":");
-    if (m < 10) strcat(tmp, "0");
-    strcat(tmp, uhub_itoa((int) m));
+	if (d)
+	{
+		strcat(tmp, uhub_itoa((int) d));
+		strcat(tmp, " day");
+		if (d != 1) strcat(tmp, "s");
+		strcat(tmp, ", ");
+	}
 
-    char* buffer = adc_msg_escape(tmp);
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
-    return 0;
+	if (h < 10) strcat(tmp, "0");
+		strcat(tmp, uhub_itoa((int) h));
+	strcat(tmp, ":");
+	if (m < 10) strcat(tmp, "0");
+		strcat(tmp, uhub_itoa((int) m));
+
+	send_message(user, tmp);
+	return 0;
 }
 
 static int command_kick(struct user* user, const char* message)
 {
-    struct adc_message* command;
-    
-    if (user->credentials < cred_operator)
-	return command_access_denied(user);
-   
-    char* buffer = adc_msg_escape("*** Kick not implemented!");
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
-    return 0;
+	send_message(user, "*** Kick not implemented!");
+	return 0;
 }
 
+static int command_reload(struct user* user, const char* message)
+{
+	send_message(user, "*** Reloading configuration");
+	user->hub->status = hub_status_restart;
+	return 0;
+}
+
+static int command_shutdown(struct user* user, const char* message)
+{
+	send_message(user, "*** Hub shuting down...");
+	user->hub->status = hub_status_shutdown;
+	return 0;
+}
+
+
 static int command_version(struct user* user, const char* message)
 {
-    struct adc_message* command;
-    char* buffer = adc_msg_escape("*** Powered by " PRODUCT "/" VERSION);
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
+    send_message(user, "*** Powered by " PRODUCT "/" VERSION);
     return 0;
 }
 
 static int command_myip(struct user* user, const char* message)
 {
-    struct adc_message* command;
     char tmp[128];
-    char* buffer;
-
-    tmp[0] = 0;
-    strcat(tmp, "*** Your IP: ");
-    strcat(tmp, ip_convert_to_string(&user->ipaddr));
-
-    buffer = adc_msg_escape(tmp);
-    command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
-    adc_msg_add_argument(command, buffer);
-    route_to_user(user, command);
-    adc_msg_free(command);
-    hub_free(buffer);
+    snprintf(tmp, 128, "*** Your IP: %s", ip_convert_to_string(&user->ipaddr));
+    send_message(user, tmp);
     return 0;
 }
 
-
 int command_dipatcher(struct user* user, const char* message)
 {
-    if      (!strncmp(message, "!stats",   6)) command_stats(user, message);
-    else if (!strncmp(message, "!help",    5)) command_help(user, message);
-    else if (!strncmp(message, "!kick",    5)) command_kick(user, message);
-    else if (!strncmp(message, "!version", 8)) command_version(user, message);
-    else if (!strncmp(message, "!uptime",  7)) command_uptime(user, message);
-    else if (!strncmp(message, "+myip",    5)) command_myip(user, message);
-    else
+	size_t n = 0;
+	for (n = 0; command_handlers[n].prefix; n++)
+	{
+		if (!strncmp(message, command_handlers[n].prefix, command_handlers[n].length))
+		{
+			if (command_handlers[n].cred <= user->credentials)
+			{
+				return command_handlers[n].handler(user, message);
+			}
+			else
+			{
+				return command_access_denied(user, &command_handlers[n].prefix[1]);
+			}
+		}
+	}
 	return 1;
-    return 0;
 }
 
+static struct commands_handler command_handlers[] = {
+	{ "!help",       5, cred_guest,     command_help,     "Show this help message." },
+	{ "!stats",      6, cred_super,     command_stats,    "Show hub statistics." },
+	{ "!version",    8, cred_guest,     command_version,  "Show hub version info."  },
+	{ "!uptime",     7, cred_guest,     command_uptime,   "Display hub uptime info." },
+	{ "!kick",       5, cred_operator,  command_kick,     "Kick a user" },
+	{ "!reload",     7, cred_admin,     command_reload,   "Reload configuration files." },
+	{ "!shutdown",   9, cred_admin,     command_shutdown, "Shutdown hub." },
+	{ "+myip",       5, cred_guest,     command_myip,     "Show your own IP." },
+	{ 0,             0, cred_none,      command_help,     "{ Last dummy option }" }
+};
+

src/hub.c

@@ -479,7 +479,11 @@ struct hub_info* hub_start_service(struct hub_config* config)
 		net_address_to_string(AF_INET6, &((struct sockaddr_in6*) &addr)->sin6_addr, address_buf, INET6_ADDRSTRLEN);
 	}
 
+#ifdef LIBEVENT_1_4
 	hub->evbase = event_base_new();
+#else
+	hub->evbase = event_init();
+#endif
 	if (!hub->evbase)
 	{
 		hub_log(log_error, "Unable to initialize libevent.");
@@ -487,7 +491,7 @@ struct hub_info* hub_start_service(struct hub_config* config)
 		return 0;
 	}
 
-	hub_log(log_info, "Starting server, listening on %s:%d...", address_buf, config->server_port);
+	hub_log(log_info, "Starting " PRODUCT "/" VERSION ", listening on %s:%d...", address_buf, config->server_port);
 
 	server_tcp = net_socket_create(af, SOCK_STREAM, IPPROTO_TCP);
 	if (server_tcp == -1)
@@ -894,6 +898,46 @@ const char* hub_get_status_message(struct hub_info* hub, enum status_message msg
 	return "Unknown";
 }
 
+const char* hub_get_status_message_log(struct hub_info* hub, enum status_message msg)
+{
+#define STATUS(MSG) case status_ ## MSG : return #MSG; break
+        switch (msg)
+        {
+                STATUS(msg_hub_full);
+                STATUS(msg_hub_disabled);
+                STATUS(msg_hub_registered_users_only);
+                STATUS(msg_inf_error_nick_missing);
+                STATUS(msg_inf_error_nick_multiple);
+                STATUS(msg_inf_error_nick_invalid);
+                STATUS(msg_inf_error_nick_long);
+                STATUS(msg_inf_error_nick_short);
+                STATUS(msg_inf_error_nick_spaces);
+                STATUS(msg_inf_error_nick_bad_chars);
+                STATUS(msg_inf_error_nick_not_utf8);
+                STATUS(msg_inf_error_nick_taken);
+                STATUS(msg_inf_error_nick_restricted);
+                STATUS(msg_inf_error_cid_invalid);
+                STATUS(msg_inf_error_cid_missing);
+                STATUS(msg_inf_error_cid_taken);
+                STATUS(msg_inf_error_pid_missing);
+                STATUS(msg_inf_error_pid_invalid);
+                STATUS(msg_ban_permanently);
+                STATUS(msg_ban_temporarily);
+                STATUS(msg_auth_invalid_password);
+                STATUS(msg_auth_user_not_found);
+                STATUS(msg_error_no_memory);
+                STATUS(msg_user_share_size_low);
+                STATUS(msg_user_share_size_high);
+                STATUS(msg_user_slots_low);
+                STATUS(msg_user_slots_high);
+                STATUS(msg_user_hub_limit_low);
+                STATUS(msg_user_hub_limit_high);
+        }
+#undef STATUS
+        return "unknown";
+}
+
+
 size_t hub_get_user_count(struct hub_info* hub)
 {
 	return hub->users->count;

src/hub.h

@@ -238,6 +238,8 @@ extern void hub_free_variables(struct hub_info* hub);
  * Returns a string for the given status_message (See enum status_message).
  */
 extern const char* hub_get_status_message(struct hub_info* hub, enum status_message msg);
+extern const char* hub_get_status_message_log(struct hub_info* hub, enum status_message msg);
+
 
 /**
  * Sends a status_message to a user.

src/hubevent.c

@@ -19,12 +19,36 @@
 
 #include "uhub.h"
 
+static void log_user_login(struct user* u)
+{
+	const char* cred = get_user_credential_string(u->credentials);
+	const char* addr = ip_convert_to_string(&u->ipaddr);
+	hub_log(log_user, "LoginOK     %s/%s %s \"%s\" (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, cred, u->user_agent);
+}
+
+static void log_user_login_error(struct user* u, enum status_message msg)
+{
+	const char* addr = ip_convert_to_string(&u->ipaddr);
+	const char* message = hub_get_status_message_log(u->hub, msg);
+	hub_log(log_user, "LoginError  %s/%s %s \"%s\" (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, message, u->user_agent);
+}
+
+static void log_user_logout(struct user* u, const char* message)
+{
+	const char* addr = ip_convert_to_string(&u->ipaddr);
+	hub_log(log_user, "Logout      %s/%s %s \"%s\" (%s)", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, message);
+}
+
+static void log_user_nick_change(struct user* u, const char* nick)
+{
+	const char* addr = ip_convert_to_string(&u->ipaddr);
+	hub_log(log_user, "NickChange  %s/%s %s \"%s\" -> \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, nick);
+}
+
+
 /* Send MOTD, do logging etc */
 void on_login_success(struct user* u)
 {
-	/* Logging - FIXME: Move this to a plugin */
-	const char* addr = ip_convert_to_string(&u->ipaddr);
-	const char* credentials_string[] = { "!none!", "link", "guest", "user", "operator", "super", "admin" };
 	struct timeval timeout = { TIMEOUT_IDLE, 0 };
 	
 	/* Send user list of all existing users */
@@ -36,7 +60,7 @@ void on_login_success(struct user* u)
 	user_manager_add(u);
 
 	/* Print log message */
-	hub_log(log_user, "Login OK    %s/%s \"%s\" [%s] (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, u->id.nick, addr, credentials_string[u->credentials], u->user_agent);
+	log_user_login(u);
 
 	/* Announce new user to all connected users */
 	if (user_is_logged_in(u))
@@ -51,36 +75,29 @@ void on_login_success(struct user* u)
 		event_add(u->ev_read, &timeout);
 }
 
-
 void on_login_failure(struct user* u, enum status_message msg)
 {
-	const char* addr = ip_convert_to_string(&u->ipaddr);
-	const char* message = hub_get_status_message(u->hub, msg);
-	hub_log(log_user, "Login FAIL  %s/%s \"%s\" [%s] (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, u->id.nick, addr, message, u->user_agent);
-	
+	log_user_login_error(u, msg);
 	hub_send_status(u, msg, status_level_fatal);
 	user_disconnect(u, quit_logon_error);
 }
 
-
 void on_nick_change(struct user* u, const char* nick)
 {
 	if (user_is_logged_in(u))
 	{
-		hub_log(log_user, "Nick change %s/%s \"%s\" -> \"%s\"", sid_to_string(u->id.sid), u->id.cid, u->id.nick, nick);
+		log_user_nick_change(u, nick);
 	}
 }
 
-
 void on_logout_user(struct user* user)
 {
 	const char* reason = "";
-	const char* addr;
 	
 	/* These are used for logging purposes */
 	switch (user->quit_reason)
 	{
-		case quit_disconnected:     reason = "disconnected";    break;
+		case quit_disconnected:     reason = "disconnected";   break;
 		case quit_kicked:           reason = "kicked";         break;
 		case quit_banned:           reason = "banned";         break;
 		case quit_timeout:          reason = "timeout";        break;
@@ -90,6 +107,7 @@ void on_logout_user(struct user* user)
 		case quit_protocol_error:   reason = "protocol error"; break;
 		case quit_logon_error:      reason = "login error";    break;
 		case quit_hub_disabled:     reason = "hub disabled";   break;
+		case quit_ghost_timeout:    reason = "ghost";          break;
 		default:
 			if (user->hub->status == hub_status_shutdown)
 				reason = "hub shutdown";
@@ -98,10 +116,7 @@ void on_logout_user(struct user* user)
 			break;
 	}
 	
-	addr = ip_convert_to_string(&user->ipaddr);
-	hub_log(log_user, "Logout      %s/%s \"%s\" [%s] (%s)", sid_to_string(user->id.sid), user->id.cid, user->id.nick, addr, reason);
-
-	
+	log_user_logout(user, reason);
 	user->quit_reason = 0;
 }
 

src/inf.c

@@ -332,7 +332,7 @@ static int check_logged_in(struct user* user, struct adc_message* cmd)
 		if (lookup1 == lookup2)
 		{
 			hub_log(log_debug, "check_logged_in: exact same user is logged in: %s", user->id.nick);
-			user_disconnect(lookup1, quit_timeout);
+			user_disconnect(lookup1, quit_ghost_timeout);
 			return 0;
 		}
 		else
@@ -645,6 +645,7 @@ void update_user_info(struct user* u, struct adc_message* cmd)
 		argument = adc_msg_get_argument(cmd, n++);
 	}
 	user_set_info(u, cmd_new);
+	adc_msg_free(cmd_new);
 }
 
 
@@ -766,7 +767,7 @@ int hub_handle_info_login(struct user* user, struct adc_message* cmd)
  */
 int hub_handle_info(struct user* user, const struct adc_message* cmd_unmodified)
 {
-	struct adc_message* cmd = adc_msg_copy(cmd_unmodified); /* FIXME: Have a small memory leak here! */
+	struct adc_message* cmd = adc_msg_copy(cmd_unmodified);
 	if (!cmd) return -1; /* OOM */
 
 	cmd->priority = 1;
@@ -778,6 +779,16 @@ int hub_handle_info(struct user* user, const struct adc_message* cmd_unmodified)
 	 */
 	if (user_is_connecting(user))
 	{
+		/*
+		 * Don't allow the user to send multiple INF messages in this stage!
+		 * Since that can have serious side-effects.
+		 */
+		if (user->info)
+		{
+			adc_msg_free(cmd);
+			return 0;
+		}
+	
 		int ret = hub_handle_info_login(user, cmd);
 		if (ret < 0)
 		{

src/log.c

@@ -177,8 +177,8 @@ void hub_log(int log_verbosity, const char *format, ...)
 	if (log_verbosity < verbosity)
 	{
 		t = time(NULL);
-		tmp = gmtime(&t);
-		strftime(timestamp, 32, "%a, %d %b %Y %H:%M:%S +0000", tmp);
+		tmp = localtime(&t);
+		strftime(timestamp, 32, "%Y-%m-%d %H:%M:%S", tmp);
 		va_start(args, format);
 		vsnprintf(logmsg, 1024, format, args);
 		va_end(args);

src/main.c

@@ -37,47 +37,29 @@ void hub_handle_signal(int fd, short events, void* arg)
 {
 	struct hub_info* hub = (struct hub_info*) arg;
 	int signal = fd;
-	struct timeval now = {0, 0};
 
 	switch (signal)
 	{
 		case SIGINT:
 			hub_log(log_info, "Interrupted. Shutting down...");
 			hub->status = hub_status_shutdown;
-			event_loopexit(&now);
 			break;
 
 		case SIGTERM:
 			hub_log(log_info, "Terminated. Shutting down...");
 			hub->status = hub_status_shutdown;
-			event_loopexit(&now);
 			break;
 
 		case SIGPIPE:
-			hub_log(log_trace, "hub_handle_signal(): caught SIGPIPE (ignoring)");
 			break;
 
 		case SIGHUP:
-			hub_log(log_info, "Caught hangup signal. Reloading configuration files...");
 			hub->status = hub_status_restart;
-			event_loopexit(&now);
-			break;
-
-		case SIGUSR1:
-			hub_log(log_trace, "hub_handle_signal(): caught SIGUSR1 -- FIXME");
-			break;
-
-		case SIGUSR2:
-			hub_log(log_trace, "hub_handle_signal(): caught SIGUSR2");
-			{
-				user_manager_print_stats(hub);
-			}
 			break;
 
 		default:
 			hub_log(log_trace, "hub_handle_signal(): caught unknown signal: %d", signal);
 			hub->status = hub_status_shutdown;
-			event_loopexit(&now);
 			break;
 	}
 }
@@ -89,8 +71,6 @@ static int signals[] =
 	SIGTERM, /* Terminate the application */
 	SIGPIPE, /* prevent sigpipe from kills the application */
 	SIGHUP,  /* reload configuration */
-	SIGUSR1, /* dump statistics */
-	SIGUSR2, /* (unused) */
 	0
 };
 
@@ -131,6 +111,12 @@ int main_loop()
 
 	do
 	{
+		if (hub)
+		{
+			hub_log(log_info, "Reloading configuration files...");
+			hub_log(log_debug, "Hub status: %d", (int) hub->status);
+		}
+	
 		if (read_config(arg_config, &configuration, !arg_have_config) == -1)
 			return -1;
 
@@ -188,6 +174,9 @@ int check_configuration(int dump)
 		puts("");
 	}
 	
+	if (dump)
+		return 0;
+	
 	if (ret == -1)
 	{
 		fprintf(stderr, "ERROR\n");

src/message.c

@@ -263,6 +263,13 @@ struct adc_message* adc_msg_parse(const char* line, size_t length)
 	
 	if (command == NULL)
 		return NULL; /* OOM */
+		
+	if (!is_printable_utf8(line, length))
+	{
+		hub_log(log_debug, "Dropped message with non-printable UTF-8 characters.");
+		hub_free(command);
+		return NULL;
+	}
 
 	if (line[length-1] != '\n')
 	{

src/misc.c

@@ -31,6 +31,16 @@ int is_white_space(char c)
 	return 0;
 }
 
+static int is_printable(unsigned char c)
+{
+	if (c >= 32)
+		return 1;
+		
+	if (c == '\t' || c == '\r' || c == '\n')
+		return 1;
+	return 0;
+}
+
 
 char* strip_white_space(char* string)
 {
@@ -48,17 +58,15 @@ char* strip_white_space(char* string)
 	return string;
 }
 
-
-int is_valid_utf8(const char* string)
+static int is_valid_utf8_str(const char* string, size_t length)
 {
 	int expect = 0;
 	char div = 0;
-	int pos = 0;
-	int length = strlen(string);
+	size_t pos = 0;
 	
 	if (length == 0) return 1;
 	
-	for (pos = 0; pos < strlen(string); pos++)
+	for (pos = 0; pos < length; pos++)
 	{
 		if (expect)
 		{
@@ -74,13 +82,28 @@ int is_valid_utf8(const char* string)
 					if (string[pos] & div) expect++;
 					else break;
 				}
-				if ((string[pos] & div) || (pos+expect >= strlen(string))) return 0;
+				if ((string[pos] & div) || (pos+expect >= length)) return 0;
 			}
 		}
 	}
 	return 1;
 }
 
+int is_valid_utf8(const char* string)
+{
+	return is_valid_utf8_str(string, strlen(string));
+}
+
+int is_printable_utf8(const char* string, size_t length)
+{
+	size_t pos = 0;
+	for (pos = 0; pos < length; pos++)
+	{
+		if (!is_printable(string[pos]))
+			return 0;
+	}
+	return is_valid_utf8_str(string, length);
+}
 
 int is_valid_base32_char(char c)
 {

src/misc.h

@@ -26,6 +26,7 @@ extern int is_num(char c);
 extern int is_space(char c);
 extern int is_white_space(char c);
 extern int is_valid_utf8(const char* string);
+extern int is_printable_utf8(const char* string, size_t length);
 extern int is_valid_base32_char(char c);
 extern void base32_encode(const unsigned char* buffer, size_t len, char* result);
 extern void base32_decode(const char* src, unsigned char* dst, size_t len);

src/netevent.c

@@ -25,10 +25,9 @@ void net_on_read(int fd, short ev, void *arg)
 	static char buf[MAX_RECV_BUF];
 	struct user* user = (struct user*) arg;
 	char* pos;
-	char* start;
-	ssize_t offset;
+	size_t offset;
+	size_t buflen;
 	ssize_t size;
-	ssize_t buflen;
 	int more = 1;
 	int flag_close = 0;
 	
@@ -55,11 +54,7 @@ void net_on_read(int fd, short ev, void *arg)
 			memcpy(buf, user->recv_buf, user->recv_buf_offset);
 			offset = user->recv_buf_offset;
 		}
-		else
-		{
-			offset = 0;
-		}
-			
+		
 		size = net_recv(fd, &buf[offset], MAX_RECV_BUF - offset, 0);
 		if (size == -1)
 		{
@@ -75,40 +70,63 @@ void net_on_read(int fd, short ev, void *arg)
 		else
 		{
 			buflen = offset + size;
-			start = buf;
-			while ((pos = strchr(start, '\n')))
+			ssize_t handled = 0;
+			
+			while ((pos = memchr(&buf[handled], '\n', (buflen - handled))))
 			{
 				pos[0] = '\0';
-				if (*start && strlen(start) < user->hub->config->max_recv_buffer)
-				{
-					if (hub_handle_message(user, start, &pos[0]-&start[0]) == -1)
-					{
-						flag_close = quit_protocol_error;
-						more = 0;
-						break;
-					}
-				}
-				start = &pos[1];
-			}
-			
-			if (!more) break;
-			
-			if (&buf[offset + size] > &start[0])
-			{
-				if (!user->recv_buf)
-				{
-					user->recv_buf = hub_malloc(user->hub->config->max_recv_buffer);
-				}
+				size_t msglen = &pos[0] - &buf[handled];
 				
-				if (!user->recv_buf)
+				if (user_flag_get(user, flag_maxbuf))
 				{
-					flag_close = quit_memory_error;
-					break;
+					user_flag_unset(user, flag_maxbuf);
 				}
 				else
 				{
-					memcpy(user->recv_buf, start, &buf[offset + size] - &start[0]);
-					user->recv_buf_offset = &buf[offset + size] - &start[0];
+					if (msglen < user->hub->config->max_recv_buffer)
+					{
+						if (hub_handle_message(user, &buf[handled], msglen) == -1)
+						{
+							flag_close = quit_protocol_error;
+							more = 0;
+							break;
+						}
+					}
+				}
+				handled += msglen;
+				handled++;
+			}
+			
+			if (handled == 0 && user_flag_get(user, flag_maxbuf))
+				handled = buflen;
+			
+			if (!more)
+				break;
+			
+			if (handled < buflen)
+			{
+				if ((buflen - handled) > user->hub->config->max_recv_buffer)
+				{
+					user_flag_set(user, flag_maxbuf);
+					hub_free(user->recv_buf);
+					user->recv_buf = 0;
+					user->recv_buf_offset = 0;
+				}
+				else
+				{
+					if (!user->recv_buf)
+						user->recv_buf = hub_malloc(user->hub->config->max_recv_buffer);
+				
+					if (user->recv_buf)
+					{
+						memcpy(user->recv_buf, &buf[handled], buflen - handled);
+						user->recv_buf_offset = buflen - handled;
+					}
+					else
+					{
+						flag_close = quit_memory_error;
+						break;
+					}
 				}
 			}
 			else
@@ -242,13 +260,13 @@ void net_on_accept(int server_fd, short ev, void *arg)
 {
 	struct hub_info* hub = (struct hub_info*) arg;
 	struct user* user = 0;
-	int accept_more = 1;
+	struct ip_addr_encap ipaddr;
 	const char* addr;
 	struct timeval timeout = { TIMEOUT_CONNECTED, 0 };
 	
-	while (accept_more)
+	for (;;)
 	{
-		int fd = net_accept(server_fd);
+		int fd = net_accept(server_fd, &ipaddr);
 		if (fd == -1)
 		{
 			if (net_error() == EWOULDBLOCK)
@@ -262,7 +280,7 @@ void net_on_accept(int server_fd, short ev, void *arg)
 			}
 		}
 		
-		addr = net_get_peer_address(fd);
+		addr = ip_convert_to_string(&ipaddr); 
 
 		/* FIXME: Should have a plugin log this */
 		hub_log(log_trace, "Got connection from %s", addr);
@@ -284,7 +302,7 @@ void net_on_accept(int server_fd, short ev, void *arg)
 		}
 		
 		/* Store IP address in user object */
-		ip_convert_to_binary(addr, &user->ipaddr);
+		memcpy(&user->ipaddr, &ipaddr, sizeof(ipaddr));
 		
 		net_set_nonblocking(fd, 1);
 		net_set_nosigpipe(fd, 1);
@@ -294,7 +312,6 @@ void net_on_accept(int server_fd, short ev, void *arg)
 		event_base_set(hub->evbase, user->ev_read);
 		event_base_set(hub->evbase, user->ev_write);
 		event_add(user->ev_read,  &timeout);
-		
 	}
 }
 

src/network.c

@@ -236,13 +236,19 @@ int net_close(int fd)
 }
 
 
-int net_accept(int fd)
+int net_accept(int fd, struct ip_addr_encap* ipaddr)
 {
 	struct sockaddr_storage addr;
+        struct sockaddr_in*  addr4;
+        struct sockaddr_in6* addr6;
 	socklen_t addr_size;
 	int ret = 0;
 	addr_size = sizeof(struct sockaddr_storage);
+
 	memset(&addr, 0, addr_size);
+	addr4 = (struct sockaddr_in*) &addr;
+	addr6 = (struct sockaddr_in6*) &addr;
+
 	ret = accept(fd, (struct sockaddr*) &addr, &addr_size);
 
 	if (ret == -1)
@@ -270,6 +276,20 @@ int net_accept(int fd)
 	else
 	{
 		net_stats_add_accept();
+
+		if (ipaddr)
+		{
+			memset(ipaddr, 0, sizeof(struct ip_addr_encap));
+			ipaddr->af = addr4->sin_family;
+			if (ipaddr->af == AF_INET6)
+			{
+				memcpy(&ipaddr->internal_ip_data.in6, &addr6->sin6_addr, sizeof(struct in6_addr));	
+			}
+			else
+			{
+				memcpy(&ipaddr->internal_ip_data.in, &addr4->sin_addr, sizeof(struct in_addr));
+			}
+		}
 	}
 
 	return ret;
@@ -465,11 +485,9 @@ const char* net_get_peer_address(int fd)
 	name4 = (struct sockaddr_in*)  &storage;
 	name  = (struct sockaddr*)     &storage;
 	
-	
-	int af = net_is_ipv6_supported() ? AF_INET6 : AF_INET;
-
 	if (getpeername(fd, (struct sockaddr*) name, &namelen) != -1)
 	{
+		int af = name4->sin_family;
 		if (af == AF_INET6)
 		{
 			net_address_to_string(af, (void*) &name6->sin6_addr, address, INET6_ADDRSTRLEN);

src/network.h

@@ -83,8 +83,11 @@ extern int net_close(int fd);
 
 /**
  * A wrapper for the accept() function call.
+ * @param fd socket descriptor
+ * @param ipaddr (in/out) if non-NULL the ip address of the
+ * accepted peer is filled in.
  */
-extern int net_accept(int fd);
+extern int net_accept(int fd, struct ip_addr_encap* ipaddr);
 
 /**
  * A wrapper for the connect() call.

src/user.h

@@ -35,7 +35,7 @@ enum user_state
 };
 
 
-enum user_flags   
+enum user_flags
 {
 	feature_base    = 0x00000001, /** BASE: Basic configuration (required by all clients) */
 	feature_auto    = 0x00000002, /** AUT0: Automatic nat detection traversal */
@@ -47,11 +47,12 @@ enum user_flags
 	feature_ping    = 0x00000080, /** PING: Hub pinger information extension */
 	feature_link    = 0x00000100, /** LINK: Hub link (not supported) */
 	flag_ignore     = 0x01000000, /** Ignore further reads */
-	flag_choke      = 0x02000000, /** Choked: Cannot send, waiting for write event */ 
-	flag_want_read  = 0x04000000, /** Need to read (SSL) */
-	flag_want_write = 0x08000000, /** Need to write (SSL) */
-	flag_user_list  = 0x10000000, /** Send queue bypass (when receiving the send queue) */
-	flag_nat        = 0x20000000, /** nat override enabled */
+	flag_maxbuf     = 0x02000000, /** Hit max buf read, ignore msg */
+	flag_choke      = 0x04000000, /** Choked: Cannot send, waiting for write event */ 
+	flag_want_read  = 0x08000000, /** Need to read (SSL) */
+	flag_want_write = 0x10000000, /** Need to write (SSL) */
+	flag_user_list  = 0x20000000, /** Send queue bypass (when receiving the send queue) */
+	flag_nat        = 0x40000000, /** nat override enabled */
 };
 
 
@@ -68,12 +69,13 @@ enum user_quit_reason
 	quit_protocol_error = 8,     /** Fatal protocol error */
 	quit_logon_error    = 9,     /** Unable to login (wrong password, CID/PID, etc) */
 	quit_hub_disabled   = 10,    /** Hub is disabled. No new connections allowed */
+	quit_ghost_timeout  = 11,    /** The user is a ghost, and trying to login from another connection */
 };
 
 
 struct user_info
 {
-    	sid_t sid;                    /** session ID */
+	sid_t sid;                    /** session ID */
 	char cid[MAX_CID_LEN+1];      /** global client ID */
 	char nick[MAX_NICK_LEN+1];    /** User's nick name */
 };

version.h

@@ -7,7 +7,7 @@
 #endif
 
 #ifndef VERSION
-#define VERSION "0.2.7-alpha"
+#define VERSION "0.2.8"
 #endif
 
 #ifndef COPYRIGHT