X-Git-Url: http://git.pk910.de/?p=NeonServV5.git;a=blobdiff_plain;f=src%2Fevent_neonspam_chanmsg.c;h=2d2978ba349181c58d7ec5a9bd13e55f392c0b21;hp=87ecdc6333749557e2425e9585e7402c551cb860;hb=c575e458c6257e75b97884847143b20965a5dfda;hpb=744387b352bc4d7d42fd6143d8583f3c64e56b9e

diff --git a/src/event_neonspam_chanmsg.c b/src/event_neonspam_chanmsg.c
index 87ecdc6..2d2978b 100644
--- a/src/event_neonspam_chanmsg.c
+++ b/src/event_neonspam_chanmsg.c
@@ -1,4 +1,4 @@
-/* event_neonspam_chanmsg.c - NeonServ v5.1
+/* event_neonspam_chanmsg.c - NeonServ v5.2
  * Copyright (C) 2011  Philipp Kreil (pk910)
  * 
  * This program is free software: you can redistribute it and/or modify
@@ -15,12 +15,24 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>. 
  */
 
-#define SPAMSERV_CHECK_IGNORE 0
-#define SPAMSERV_CHECK_WARN   1
-#define SPAMSERV_CHECK_PUNISH 2
-
 static int neonspam_spamscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message);
 static int neonspam_floodscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser);
+static int neonspam_botnetscan(struct ClientSocket *client, struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message);
+static int neonspam_capsscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message);
+static int neonspam_digitscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message);
+
+static USERAUTH_CALLBACK(neonspam_event_chanmsg_nick_lookup);
+static void neonspam_event_chanmsg_punish(struct ClientSocket *client, struct ChanUser *chanuser, struct NeonSpamSettings *settings, unsigned int warn, unsigned int punish);
+
+struct neonspam_event_chanmsg_cache {
+    struct ClientSocket *client;
+    struct ChanUser *chanuser;
+    struct NeonSpamSettings *settings;
+    unsigned int warn;
+    unsigned int punish;
+};
+
+
 
 static void neonspam_event_chanmsg(struct UserNode *user, struct ChanNode *chan, char *message) {
     struct ClientSocket *client = getChannelBot(chan, BOTID);
@@ -29,40 +41,225 @@ static void neonspam_event_chanmsg(struct UserNode *user, struct ChanNode *chan,
     struct NeonSpamSettings *settings = chan->spam_settings;
     struct ChanUser *chanuser = getChanUser(user, chan);
     if(!settings || !chanuser) return;
-    
-    //ignore messages from ops/voices if we ignore them
-    if(!(settings->flags & SPAMSETTINGS_SCANOPS) && (chanuser->flags & CHANUSERFLAG_OPPED)) return;
-    if(!(settings->flags & SPAMSETTINGS_SCANVOICE) && (chanuser->flags & CHANUSERFLAG_VOICED)) return;
-    
+    #define NEONSPAM_CHANMSG_DO_SCANOPS(FLAG) ((settings->flags & FLAG) || !(chanuser->flags & CHANUSERFLAG_OPPED))
+    #define NEONSPAM_CHANMSG_DO_SCANVOICE(FLAG) ((settings->flags & FLAG) || !(chanuser->flags & CHANUSERFLAG_VOICED))
+    #define NEONSPAM_CHANMSG_DO_EXCEPT(INDEX) (settings->exceptlevel[INDEX] != 0)
+    #define NEONSPAM_CHANMSG_NEED_WHO(INDEX) (settings->exceptlevel[INDEX] != 501)
     //scan the message
     int result = 0;
-    if(settings->flags & SPAMSETTINGS_SPAMSCAN) {
+    unsigned int warn = 0;
+    unsigned int punish = 0;
+    int needwho = 0;
+    if((settings->flags & SPAMSETTINGS_SPAMSCAN) && NEONSPAM_CHANMSG_DO_SCANOPS(SPAMSETTINGS_SPAMSCAN_OPS) && NEONSPAM_CHANMSG_DO_SCANVOICE(SPAMSETTINGS_SPAMSCAN_VOICE) && NEONSPAM_CHANMSG_DO_EXCEPT(SPAMSETTINGS_SPAMEXCINDEX)) {
         result = neonspam_spamscan(settings, chanuser, message);
         switch(result) {
             case SPAMSERV_CHECK_IGNORE:
                 break;
             case SPAMSERV_CHECK_WARN:
-                reply(client, user, "SPAM WARNING!");
+                warn |= SPAMSETTINGS_SPAMSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_SPAMEXCINDEX))
+                    needwho = 1;
                 break;
             case SPAMSERV_CHECK_PUNISH:
-                reply(client, user, "SPAM PUNISHMENT!");
+                punish |= SPAMSETTINGS_SPAMSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_SPAMEXCINDEX))
+                    needwho = 1;
                 break;
         }
     }
-    if(settings->flags & SPAMSETTINGS_FLOODSCAN) {
+    if((settings->flags & SPAMSETTINGS_FLOODSCAN) && NEONSPAM_CHANMSG_DO_SCANOPS(SPAMSETTINGS_FLOODSCAN_OPS) && NEONSPAM_CHANMSG_DO_SCANVOICE(SPAMSETTINGS_FLOODSCAN_VOICE) && NEONSPAM_CHANMSG_DO_EXCEPT(SPAMSETTINGS_FLOODEXCINDEX)) {
         result = neonspam_floodscan(settings, chanuser);
         switch(result) {
             case SPAMSERV_CHECK_IGNORE:
                 break;
             case SPAMSERV_CHECK_WARN:
-                reply(client, user, "FLOOD WARNING!");
+                warn |= SPAMSETTINGS_FLOODSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_FLOODEXCINDEX))
+                    needwho = 1;
+                break;
+            case SPAMSERV_CHECK_PUNISH:
+                punish |= SPAMSETTINGS_FLOODSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_FLOODEXCINDEX))
+                    needwho = 1;
+                break;
+        }
+    }
+    if((settings->flags & SPAMSETTINGS_BOTNETSCAN) && NEONSPAM_CHANMSG_DO_SCANOPS(SPAMSETTINGS_BOTNETSCAN_OPS) && NEONSPAM_CHANMSG_DO_SCANVOICE(SPAMSETTINGS_BOTNETSCAN_VOICE)) {
+        result = neonspam_botnetscan(client, settings, chanuser, message);
+        switch(result) {
+            case SPAMSERV_CHECK_DEAD:
+                return;
+            case SPAMSERV_CHECK_IGNORE:
+                break;
+        }
+    }
+    if((settings->flags & SPAMSETTINGS_CAPSSCAN) && NEONSPAM_CHANMSG_DO_SCANOPS(SPAMSETTINGS_CAPSSCAN_OPS) && NEONSPAM_CHANMSG_DO_SCANVOICE(SPAMSETTINGS_CAPSSCAN_VOICE) && NEONSPAM_CHANMSG_DO_EXCEPT(SPAMSETTINGS_CAPSEXCINDEX)) {
+        result = neonspam_capsscan(settings, chanuser, message);
+        switch(result) {
+            case SPAMSERV_CHECK_IGNORE:
+                break;
+            case SPAMSERV_CHECK_WARN:
+                warn |= SPAMSETTINGS_CAPSSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_CAPSEXCINDEX))
+                    needwho = 1;
+                break;
+            case SPAMSERV_CHECK_PUNISH:
+                punish |= SPAMSETTINGS_CAPSSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_CAPSEXCINDEX))
+                    needwho = 1;
+                break;
+        }
+    }
+    if((settings->flags & SPAMSETTINGS_DIGITSCAN) && NEONSPAM_CHANMSG_DO_SCANOPS(SPAMSETTINGS_DIGITSCAN_OPS) && NEONSPAM_CHANMSG_DO_SCANVOICE(SPAMSETTINGS_DIGITSCAN_VOICE) && NEONSPAM_CHANMSG_DO_EXCEPT(SPAMSETTINGS_DIGITEXCINDEX)) {
+        result = neonspam_digitscan(settings, chanuser, message);
+        switch(result) {
+            case SPAMSERV_CHECK_IGNORE:
+                break;
+            case SPAMSERV_CHECK_WARN:
+                warn |= SPAMSETTINGS_DIGITSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_DIGITEXCINDEX))
+                    needwho = 1;
                 break;
             case SPAMSERV_CHECK_PUNISH:
-                reply(client, user, "FLOOD PUNISHMENT!");
+                punish |= SPAMSETTINGS_DIGITSCAN;
+                if(NEONSPAM_CHANMSG_NEED_WHO(SPAMSETTINGS_DIGITEXCINDEX))
+                    needwho = 1;
                 break;
         }
     }
+    //some other checks?
     
+    if(warn || punish) {
+        //whois the user to check against exceptlevel
+        if(!needwho || (user->flags & USERFLAG_ISAUTHED)) {
+            neonspam_event_chanmsg_punish(client, chanuser, settings, warn, punish);
+        } else {
+            struct neonspam_event_chanmsg_cache *cache = malloc(sizeof(*cache));
+            if (!cache) {
+                perror("malloc() failed");
+                return;
+            }
+            cache->client = client;
+            cache->chanuser = chanuser;
+            cache->settings = settings;
+            cache->warn = warn;
+            cache->punish = punish;
+            get_userauth(user, neonspam_event_chanmsg_nick_lookup, cache);
+        }
+        
+    }
+    #undef NEONSPAM_CHANMSG_DO_SCANOPS
+    #undef NEONSPAM_CHANMSG_DO_SCANVOICE
+    #undef NEONSPAM_CHANMSG_DO_EXCEPT
+    #undef NEONSPAM_CHANMSG_NEED_WHO
+}
+
+static USERAUTH_CALLBACK(neonspam_event_chanmsg_nick_lookup) {
+    struct neonspam_event_chanmsg_cache *cache = data;
+    neonspam_event_chanmsg_punish(cache->client, cache->chanuser, cache->settings, cache->warn, cache->punish);
+    free(cache);
+}
+
+static void neonspam_event_chanmsg_punish(struct ClientSocket *client, struct ChanUser *chanuser, struct NeonSpamSettings *settings, unsigned int warn, unsigned int punish) {
+    MYSQL_RES *res;
+    MYSQL_ROW row;
+    loadChannelSettings(chanuser->chan);
+    int uaccess = 0;
+    if(chanuser->user->flags & USERFLAG_ISAUTHED)
+        uaccess = getChannelAccess(chanuser->user, chanuser->chan, 0);
+    char reason[MAXLEN];
+    reason[0] = '\0';
+    int punishment = 0;
+    int punish_time = 0;
+    if(!punishment && (punish & SPAMSETTINGS_SPAMSCAN) && settings->exceptlevel[SPAMSETTINGS_SPAMEXCINDEX] > uaccess) {
+        printf_mysql_query("SELECT `channel_spam_reaction`, `channel_spam_reaction_duration` FROM `channels` WHERE `channel_id` = '%d'", chanuser->chan->channel_id);
+        res = mysql_use();
+        row = mysql_fetch_row(res);
+        if(!row[0]) {
+            printf_mysql_query("SELECT `channel_spam_reaction`, `channel_spam_reaction_duration` FROM `channels` WHERE `channel_name` = 'defaults'");
+            res = mysql_use();
+            row = mysql_fetch_row(res);
+        }
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_SPAM);
+        punishment = atoi(row[0]) + 1;
+        punish_time = atoi(row[1]);
+    }
+    if(!punishment && (punish & SPAMSETTINGS_FLOODSCAN) && settings->exceptlevel[SPAMSETTINGS_FLOODEXCINDEX] > uaccess) {
+        printf_mysql_query("SELECT `channel_flood_reaction`, `channel_flood_reaction_duration` FROM `channels` WHERE `channel_id` = '%d'", chanuser->chan->channel_id);
+        res = mysql_use();
+        row = mysql_fetch_row(res);
+        if(!row[0]) {
+            printf_mysql_query("SELECT `channel_flood_reaction`, `channel_flood_reaction_duration` FROM `channels` WHERE `channel_name` = 'defaults'");
+            res = mysql_use();
+            row = mysql_fetch_row(res);
+        }
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_FLOOD);
+        punishment = atoi(row[0]) + 1;
+        punish_time = atoi(row[1]);
+    }
+    if(!punishment && (punish & SPAMSETTINGS_CAPSSCAN) && settings->exceptlevel[SPAMSETTINGS_CAPSEXCINDEX] > uaccess) {
+        printf_mysql_query("SELECT `channel_caps_reaction`, `channel_caps_reaction_duration` FROM `channels` WHERE `channel_id` = '%d'", chanuser->chan->channel_id);
+        res = mysql_use();
+        row = mysql_fetch_row(res);
+        if(!row[0]) {
+            printf_mysql_query("SELECT `channel_caps_reaction`, `channel_caps_reaction_duration` FROM `channels` WHERE `channel_name` = 'defaults'");
+            res = mysql_use();
+            row = mysql_fetch_row(res);
+        }
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_CAPS);
+        punishment = atoi(row[0]) + 1;
+        punish_time = atoi(row[1]);
+    }
+    if(!punishment && (punish & SPAMSETTINGS_DIGITSCAN) && settings->exceptlevel[SPAMSETTINGS_DIGITEXCINDEX] > uaccess) {
+        printf_mysql_query("SELECT `channel_digit_reaction`, `channel_digit_reaction_duration` FROM `channels` WHERE `channel_id` = '%d'", chanuser->chan->channel_id);
+        res = mysql_use();
+        row = mysql_fetch_row(res);
+        if(!row[0]) {
+            printf_mysql_query("SELECT `channel_digit_reaction`, `channel_digit_reaction_duration` FROM `channels` WHERE `channel_name` = 'defaults'");
+            res = mysql_use();
+            row = mysql_fetch_row(res);
+        }
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_DIGIT);
+        punishment = atoi(row[0]) + 1;
+        punish_time = atoi(row[1]);
+    }
+    if(!punishment && (warn & SPAMSETTINGS_SPAMSCAN) && settings->exceptlevel[SPAMSETTINGS_SPAMEXCINDEX] > uaccess) {
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_SPAM);
+    }
+    if(!punishment && (warn & SPAMSETTINGS_FLOODSCAN) && settings->exceptlevel[SPAMSETTINGS_FLOODEXCINDEX] > uaccess) {
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_FLOOD);
+    }
+    if(!punishment && (warn & SPAMSETTINGS_CAPSSCAN) && settings->exceptlevel[SPAMSETTINGS_CAPSEXCINDEX] > uaccess) {
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_CAPS);
+    }
+    if(!punishment && (warn & SPAMSETTINGS_DIGITSCAN) && settings->exceptlevel[SPAMSETTINGS_DIGITEXCINDEX] > uaccess) {
+        sprintf(reason, SPAMSERV_MSG_WARNING, SPAMSERV_MSG_DIGIT);
+    }
+    if(punishment) {
+        char banmaskBuf[NICKLEN+USERLEN+HOSTLEN+3];
+        char *banmask = NULL;
+        switch (punishment) {
+            case 3: //TIMEBAN: 1h
+                banmask = generate_banmask(chanuser->user, banmaskBuf);
+                printf_mysql_query("INSERT INTO `bans` (`ban_channel`, `ban_mask`, `ban_triggered`, `ban_timeout`, `ban_owner`, `ban_reason`) VALUES ('%d', '%s', UNIX_TIMESTAMP(), '%lu', '%d', '%s')", chanuser->chan->channel_id, escape_string(banmask), (unsigned long) (punish_time ? (time(0) + punish_time) : 0), 0, escape_string(reason));
+                if(punish_time) {
+                    int banid = (int) mysql_insert_id(mysql_conn);
+                    char nameBuf[MAXLEN];
+                    char banidBuf[20];
+                    sprintf(nameBuf, "ban_%d", banid);
+                    sprintf(banidBuf, "%d", banid);
+                    timeq_add_name(nameBuf, punish_time, channel_ban_timeout, strdup(banidBuf));
+                }
+            case 2: //KICKBAN
+                if(!banmask)
+                    banmask = generate_banmask(chanuser->user, banmaskBuf);
+                putsock(client, "MODE %s +b %s", chanuser->chan->name, banmask);
+            case 1: //KICK
+                putsock(client, "KICK %s %s :%s", chanuser->chan->name, chanuser->user->nick, reason);
+                break;
+        }
+    } else if(*reason)
+        reply(client, chanuser->user, "%s", reason);
 }
 
 static int neonspam_spamscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message) {
@@ -89,7 +286,7 @@ static int neonspam_update_penalty(struct NeonSpamSettings *settings, struct Cha
     int last_update = time(0) - chanuser->spamnode->last_penalty_update;
     if(last_update) {
         if(last_update < MAX_FLOOD_TIME && chanuser->spamnode->floodpenalty) {
-            chanuser->spamnode->floodpenalty -= last_update * (MAX_FLOOD_TIME / settings->flood_time);
+            chanuser->spamnode->floodpenalty -= last_update * (MAX_FLOOD_TIME / settings->sensibility_time[SPAMSETTINGS_FLOODSENINDEX]);
             if(chanuser->spamnode->floodpenalty < 0)
                 chanuser->spamnode->floodpenalty = 0;
         } else
@@ -104,12 +301,92 @@ static int neonspam_floodscan(struct NeonSpamSettings *settings, struct ChanUser
     if(!chanuser->spamnode)
         createSpamNode(chanuser);
     int messages_pending = neonspam_update_penalty(settings, chanuser, 1);
-    if(messages_pending == settings->flood_amount)
+    if(messages_pending == settings->sensibility_amount[SPAMSETTINGS_FLOODSENINDEX])
         return SPAMSERV_CHECK_WARN;
-    else if(messages_pending > settings->flood_amount)
+    else if(messages_pending > settings->sensibility_amount[SPAMSETTINGS_FLOODSENINDEX])
         return SPAMSERV_CHECK_PUNISH;
     else
         return SPAMSERV_CHECK_IGNORE;
 }
 
+static int neonspam_botnetscan(struct ClientSocket *client, struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message) {
+    //crc32 hash of the message
+    unsigned long msghash = crc32(message);
+    if((time(0) - settings->lastmsg_time) > BOTNETSCAN_TIME || settings->lastmsg != msghash) {
+        int i;
+        for(i = 0; i < BOTNETSCAN_USERS; i++) {
+            if(settings->botnicks[i]) {
+                free(settings->botnicks[i]);
+                settings->botnicks[i] = NULL;
+            }
+        }
+        settings->flags &= ~SPAMSETTINGS_KICKEDBOTQUEUE;
+        settings->lastmsg = msghash;
+    } else if(settings->lastmsg == msghash) {
+        int i;
+        for(i = 0; i < BOTNETSCAN_USERS; i++) {
+            if(!settings->botnicks[i]) {
+                settings->botnicks[i] = strdup(chanuser->user->nick);
+                break;
+            } else if(!stricmp(chanuser->user->nick, settings->botnicks[i])) {
+                return SPAMSERV_CHECK_IGNORE;
+            }
+        }
+        if(i == BOTNETSCAN_USERS) {
+            //BOTNETSCAN_USERS exceeded
+            if(!(settings->flags & SPAMSETTINGS_KICKEDBOTQUEUE)) {
+                for(i = 0; i < BOTNETSCAN_USERS; i++) {
+                    putsock(client, "KICK %s %s :%s", chanuser->chan->name, settings->botnicks[i], SPAMSERV_MSG_BOTNET);
+                }
+                settings->flags |= SPAMSETTINGS_KICKEDBOTQUEUE;
+            }
+            putsock(client, "KICK %s %s :%s", chanuser->chan->name, chanuser->user->nick, SPAMSERV_MSG_BOTNET);
+            return SPAMSERV_CHECK_DEAD;
+        }
+    }
+    settings->lastmsg_time = time(0);
+    return SPAMSERV_CHECK_IGNORE;
+}
+
+static int neonspam_capsscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message) {
+    int caps = 0, msglen = strlen(message);
+    int i;
+    if(msglen <= 4) return SPAMSERV_CHECK_IGNORE;
+    for(i = 0; i < msglen; i++) {
+        if(isupper(message[i])) caps++;
+    }
+    caps = 100*caps/msglen;
+    if(caps >= settings->percent[SPAMSETTINGS_CAPSPERCENTINDEX]) {
+        if(!chanuser->spamnode)
+            createSpamNode(chanuser);
+        if(chanuser->spamnode->flags & NEONSPAMNODE_FLAG_CAPSSCAN_WARNED)
+            return SPAMSERV_CHECK_PUNISH;
+        else {
+            chanuser->spamnode->flags |= NEONSPAMNODE_FLAG_CAPSSCAN_WARNED;
+            return SPAMSERV_CHECK_WARN;
+        }
+    }
+    return SPAMSERV_CHECK_IGNORE;
+}
+
+static int neonspam_digitscan(struct NeonSpamSettings *settings, struct ChanUser *chanuser, char *message) {
+    int digit = 0, msglen = strlen(message);
+    int i;
+    if(msglen <= 4) return SPAMSERV_CHECK_IGNORE;
+    for(i = 0; i < msglen; i++) {
+        if(isdigit(message[i])) digit++;
+    }
+    digit = 100*digit/msglen;
+    if(digit >= settings->percent[SPAMSETTINGS_DIGITPERCENTINDEX]) {
+        if(!chanuser->spamnode)
+            createSpamNode(chanuser);
+        if(chanuser->spamnode->flags & NEONSPAMNODE_FLAG_DIGITSCAN_WARNED)
+            return SPAMSERV_CHECK_PUNISH;
+        else {
+            chanuser->spamnode->flags |= NEONSPAMNODE_FLAG_DIGITSCAN_WARNED;
+            return SPAMSERV_CHECK_WARN;
+        }
+    }
+    return SPAMSERV_CHECK_IGNORE;
+}