Add sessions_alarm

Introduce new feature: sessions_alarm.

Added new account setting: max_connections. On exceeding this number,
user will get an alert. If number is less than 1, no alert will happen.

Tests altered to fit new feature.

3 files changed, 35 insertions, 2 deletions

diff --git a/src/command/cmd_ac.c b/src/command/cmd_ac.c
index 5678dbff..b29acec5 100644
--- a/src/command/cmd_ac.c
+++ b/src/command/cmd_ac.c
@@ -485,6 +485,7 @@ cmd_ac_init(void)
     autocomplete_add(account_set_ac, "tls");
     autocomplete_add(account_set_ac, "auth");
     autocomplete_add(account_set_ac, "theme");
+    autocomplete_add(account_set_ac, "session_alarm");
 
     account_clear_ac = autocomplete_new();
     autocomplete_add(account_clear_ac, "password");
@@ -498,6 +499,7 @@ cmd_ac_init(void)
     autocomplete_add(account_clear_ac, "theme");
     autocomplete_add(account_clear_ac, "muc");
     autocomplete_add(account_clear_ac, "resource");
+    autocomplete_add(account_clear_ac, "session_alarm");
 
     account_default_ac = autocomplete_new();
     autocomplete_add(account_default_ac, "set");
diff --git a/src/command/cmd_defs.c b/src/command/cmd_defs.c
index fe993e39..0dd7f10a 100644
--- a/src/command/cmd_defs.c
+++ b/src/command/cmd_defs.c
@@ -2070,6 +2070,7 @@ static const struct cmd_t command_defs[] = {
               "/account set <account> tls force|allow|trust|legacy|disable",
               "/account set <account> auth default|legacy",
               "/account set <account> theme <theme>",
+              "/account set <account> session_alarm <max_sessions>",
               "/account clear <account> password",
               "/account clear <account> eval_password",
               "/account clear <account> server",
@@ -2079,7 +2080,8 @@ static const struct cmd_t command_defs[] = {
               "/account clear <account> startscript",
               "/account clear <account> clientid",
               "/account clear <account> muc",
-              "/account clear <account> resource")
+              "/account clear <account> resource",
+              "/account clear <account> session_alarm")
       CMD_DESC(
               "Commands for creating and managing accounts. "
               "Calling with no arguments will display information for the current account.")
@@ -2116,6 +2118,7 @@ static const struct cmd_t command_defs[] = {
               { "set <account> auth default", "Use default authentication process." },
               { "set <account> auth legacy", "Allow legacy authentication." },
               { "set <account> theme <theme>", "Set the UI theme for the account." },
+              { "set <account> session_alarm <max_sessions>", "Alarm about suspicious activity if sessions count exceeds max_sessions." },
               { "clear <account> server", "Remove the server setting for this account." },
               { "clear <account> port", "Remove the port setting for this account." },
               { "clear <account> password", "Remove the password setting for this account." },
@@ -2126,7 +2129,8 @@ static const struct cmd_t command_defs[] = {
               { "clear <account> clientid", "Reset client's name to default." },
               { "clear <account> theme", "Clear the theme setting for the account, the global theme will be used." },
               { "clear <account> resource", "Remove the resource setting for this account." },
-              { "clear <account> muc", "Remove the default MUC service setting." })
+              { "clear <account> muc", "Remove the default MUC service setting." },
+              { "clear <account> session_alarm", "Disable the session alarm." })
       CMD_EXAMPLES(
               "/account add me",
               "/account set me jid ulfhednar@valhalla.edda",
diff --git a/src/command/cmd_funcs.c b/src/command/cmd_funcs.c
index 7c533a45..4a5c7fa1 100644
--- a/src/command/cmd_funcs.c
+++ b/src/command/cmd_funcs.c
@@ -905,6 +905,28 @@ _account_set_auth(char* account_name, char* policy)
 }
 
 gboolean
+_account_set_max_sessions(char* account_name, char* max_sessions_raw)
+{
+    int max_sessions;
+    char* err_msg = NULL;
+    gboolean res = strtoi_range(max_sessions_raw, &max_sessions, 0, INT_MAX, &err_msg);
+    if (!res) {
+        cons_show(err_msg);
+        cons_show("");
+        free(err_msg);
+        return TRUE;
+    }
+    accounts_set_max_sessions(account_name, max_sessions);
+    if (max_sessions < 1) {
+        cons_show("Max sessions alarm for account %s has been disabled.", account_name);
+    } else {
+        cons_show("Max sessions alarm for account %s has been set to %d", account_name, max_sessions);
+    }
+    cons_show("");
+    return TRUE;
+}
+
+gboolean
 _account_set_presence_priority(char* account_name, char* presence, char* priority)
 {
     int intval;
@@ -997,6 +1019,8 @@ cmd_account_set(ProfWin* window, const char* const command, gchar** args)
         return _account_set_tls(account_name, value);
     if (strcmp(property, "auth") == 0)
         return _account_set_auth(account_name, value);
+    if (strcmp(property, "session_alarm") == 0)
+        return _account_set_max_sessions(account_name, value);
 
     if (valid_resource_presence_string(property)) {
         return _account_set_presence_priority(account_name, property, value);
@@ -1057,6 +1081,9 @@ cmd_account_clear(ProfWin* window, const char* const command, gchar** args)
     } else if (strcmp(property, "resource") == 0) {
         accounts_clear_resource(account_name);
         cons_show("Removed resource for account %s", account_name);
+    } else if (strcmp(property, "session_alarm") == 0) {
+        accounts_clear_max_sessions(account_name);
+        cons_show("Disabled session alarm for account %s", account_name);
     } else {
         cons_show("Invalid property: %s", property);
     }