]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/message.cpp
Removed threaded dns (it might make a comeback some day, but as it stands its incompa...
[user/henk/code/inspircd.git] / src / message.cpp
index 45138e7b91a4aeff28630b8c3fa7b4998a2fc410..96b540db4b0570ce301ff6ab3a66ef66d629b2f1 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
  *                       E-mail:
  *                <brain@chatspike.net>
  *               <Craig@chatspike.net>
@@ -18,19 +18,14 @@ using namespace std;
 
 #include "inspircd_config.h"
 #include "inspircd.h"
-#include "inspircd_io.h"
-#include "inspircd_util.h"
+#include "configreader.h"
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/errno.h>
 #include <sys/utsname.h>
 #include <time.h>
 #include <string>
-#ifdef GCC3
 #include <ext/hash_map>
-#else
-#include <hash_map>
-#endif
 #include <map>
 #include <sstream>
 #include <vector>
@@ -54,255 +49,148 @@ extern time_t TIME;
 extern ServerConfig* Config;
 
 /* return 0 or 1 depending if users u and u2 share one or more common channels
- * (used by QUIT, NICK etc which arent channel specific notices) */
-
+ * (used by QUIT, NICK etc which arent channel specific notices)
+ *
+ * The old algorithm in 1.0 for this was relatively inefficient, iterating over
+ * the first users channels then the second users channels within the outer loop,
+ * therefore it was a maximum of x*y iterations (upon returning 0 and checking
+ * all possible iterations). However this new function instead checks against the
+ * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
+ * and saves us time as we already know what pointer value we are after.
+ * Don't quote me on the maths as i am not a mathematician or computer scientist,
+ * but i believe this algorithm is now x+(log y) maximum iterations instead.
+ */
 int common_channels(userrec *u, userrec *u2)
 {
-       if ((!u) || (!u2))
-       {
-               log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
+       if ((!u) || (!u2) || (u->registered != REG_ALL) || (u2->registered != REG_ALL))
                return 0;
-       }
-       for (unsigned int i = 0; i < u->chans.size(); i++)
-       {
-               for (unsigned int z = 0; z != u2->chans.size(); z++)
-               {
-                       if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
-                       {
-                               if ((!strcasecmp(u->chans[i].channel->name,u2->chans[z].channel->name)) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
-                               {
-                                       if ((c_count(u)) && (c_count(u2)))
-                                       {
-                                               return 1;
-                                       }
-                               }
-                       }
-               }
-       }
-       return 0;
-}
-
-void tidystring(char* str)
-{
-       // strips out double spaces before a : parameter
-
-       char temp[MAXBUF];
-       bool go_again = true;
 
-       if (!str)
-               return;
-
-       // pointer voodoo++ --w00t
-       while ((*str) && (*str == ' '))
-               str++;
-
-       while (go_again)
+       /* Outer loop */
+       for (std::vector<ucrec*>::const_iterator i = u->chans.begin(); i != u->chans.end(); i++)
        {
-               bool noparse = false;
-               int t = 0, a = 0;
-               go_again = false;
-               const int lenofstr = strlen(str);
+               /* Fetch the channel from the user */
+               ucrec* user_channel = *i;
 
-               /*
-                * by caching strlen() of str, we theoretically avoid 3 expensive calls each time this loop
-                * rolls around.. should speed things up a nanosecond or two. ;)
-                */
-
-               while (a < lenofstr)
+               if (user_channel->channel)
                {
-                       if ((a < lenofstr - 1) && (noparse == false))
-                       {
-                               if ((str[a] == ' ') && (str[a+1] == ' '))
-                               {
-                                       log(DEBUG,"Tidied extra space out of string: %s",str);
-                                       go_again = true;
-                                       a++;
-                               }
-                       }
-
-                       if (a < lenofstr - 1)
-                       {
-                               if ((str[a] == ' ') && (str[a+1] == ':'))
-                               {
-                                       noparse = true;
-                               }
-                       }
-
-                       temp[t++] = str[a++];
+                       /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
+                        * by replacing it with a map::find which *should* be more efficient
+                        */
+                       if (user_channel->channel->HasUser(u2))
+                               return 1;
                }
-
-               temp[t] = '\0';
-               strlcpy(str,temp,MAXBUF);
-       }
-}
-
-/* chop a string down to 512 characters and preserve linefeed (irc max
- * line length) */
-
-void chop(char* str)
-{
-       if (!str)
-       {
-               log(DEBUG,"ERROR! Null string passed to chop()!");
-               return;
-       }
-       string temp = str;
-       FOREACH_MOD OnServerRaw(temp,false,NULL);
-       const char* str2 = temp.c_str();
-       snprintf(str,MAXBUF,"%s",str2);
-       if (strlen(str) >= 511)
-       {
-               str[510] = '\r';
-               str[511] = '\n';
-               str[512] = '\0';
-               log(DEBUG,"Excess line chopped.");
        }
+       return 0;
 }
 
-
 void Blocking(int s)
 {
-       int flags;
-       log(DEBUG,"Blocking: %d",s);
-       flags = fcntl(s, F_GETFL, 0);
+       int flags = fcntl(s, F_GETFL, 0);
        fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 }
 
 void NonBlocking(int s)
 {
-       int flags;
-       log(DEBUG,"NonBlocking: %d",s);
-       flags = fcntl(s, F_GETFL, 0);
+       int flags = fcntl(s, F_GETFL, 0);
        fcntl(s, F_SETFL, flags | O_NONBLOCK);
 }
 
-int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
+int CleanAndResolve (char *resolvedHost, const char *unresolvedHost, bool forward, unsigned long timeout)
 {
-       DNS d(DNSServer);
-       int fd = d.ReverseLookup(unresolvedHost);
-       if (fd < 1)
-               return 0;
-       time_t T = time(NULL)+1;
-       while ((!d.HasResult()) && (time(NULL)<T));
-       std::string ipaddr = d.GetResult();
-       strlcpy(resolvedHost,ipaddr.c_str(),MAXBUF);
-       return (ipaddr != "");
+       return 0;
 }
 
 int c_count(userrec* u)
 {
        int z = 0;
-       for (unsigned int i =0; i < u->chans.size(); i++)
-               if (u->chans[i].channel != NULL)
+       for (std::vector<ucrec*>::const_iterator i = u->chans.begin(); i != u->chans.end(); i++)
+               if ((*i)->channel)
                        z++;
        return z;
 
 }
 
-bool hasumode(userrec* user, char mode)
-{
-       if (user)
-       {
-               return (strchr(user->modes,mode)>0);
-       }
-       else return false;
-}
-
-
 void ChangeName(userrec* user, const char* gecos)
 {
        if (user->fd > -1)
        {
                int MOD_RESULT = 0;
-               FOREACH_RESULT(OnChangeLocalUserGECOS(user,gecos));
+               FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(user,gecos));
                if (MOD_RESULT)
                        return;
-               FOREACH_MOD OnChangeName(user,gecos);
+               FOREACH_MOD(I_OnChangeName,OnChangeName(user,gecos));
        }
-       strlcpy(user->fullname,gecos,MAXBUF);
+       strlcpy(user->fullname,gecos,MAXGECOS+1);
 }
 
 void ChangeDisplayedHost(userrec* user, const char* host)
 {
-        if (user->fd > -1)
-        {
-                int MOD_RESULT = 0;
-                FOREACH_RESULT(OnChangeLocalUserHost(user,host));
-                if (MOD_RESULT)
-                        return;
-               FOREACH_MOD OnChangeHost(user,host);
-        }
-       strlcpy(user->dhost,host,160);
+       if (user->fd > -1)
+       {
+               int MOD_RESULT = 0;
+               FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(user,host));
+               if (MOD_RESULT)
+                       return;
+               FOREACH_MOD(I_OnChangeHost,OnChangeHost(user,host));
+       }
+       strlcpy(user->dhost,host,63);
+       WriteServ(user->fd,"396 %s %s :is now your hidden host",user->nick,user->dhost);
 }
 
 /* verify that a user's ident and nickname is valid */
 
 int isident(const char* n)
 {
-        if (!n)
-
-        {
-                return 0;
-        }
-        if (!strcmp(n,""))
-        {
-                return 0;
-        }
-        for (unsigned int i = 0; i < strlen(n); i++)
-        {
-                if ((n[i] < 33) || (n[i] > 125))
-                {
-                        return 0;
-                }
-                /* can't occur ANYWHERE in an Ident! */
-                if (strchr("<>,/?:;@'~#=+()*&%$£ \"!",n[i]))
-                {
-                        return 0;
-                }
-        }
-        return 1;
-}
-
-
-int isnick(const char* n)
-{
-       if (!n)
+       if (!n || !*n)
        {
                return 0;
        }
-       if (!strcmp(n,""))
+       for (char* i = (char*)n; *i; i++)
        {
+               if ((*i >= 'A') && (*i <= '}'))
+               {
+                       continue;
+               }
+               if (((*i >= '0') && (*i <= '9')) || (*i == '-') || (*i == '.'))
+               {
+                       continue;
+               }
                return 0;
        }
-       if (strlen(n) > NICKMAX)
+       return 1;
+}
+
+
+int isnick(const char* n)
+{
+       if (!n || !*n)
        {
                return 0;
        }
-       for (unsigned int i = 0; i != strlen(n); i++)
+       int p = 0;
+       for (char* i = (char*)n; *i; i++, p++)
        {
-               if ((n[i] < 33) || (n[i] > 125))
-               {
-                       return 0;
-               }
-               /* can't occur ANYWHERE in a nickname! */
-               if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
+               /* "A"-"}" can occur anywhere in a nickname */
+               if ((*i >= 'A') && (*i <= '}'))
                {
-                       return 0;
+                       continue;
                }
-               /* can't occur as the first char of a nickname... */
-               if ((strchr("0123456789",n[i])) && (!i))
+               /* "0"-"9", "-" can occur anywhere BUT the first char of a nickname */
+               if ((((*i >= '0') && (*i <= '9')) || (*i == '-')) && (i > n))
                {
-                       return 0;
+                       continue;
                }
+               /* invalid character! abort */
+               return 0;
        }
-       return 1;
+       return (p < NICKMAX - 1);
 }
 
 /* returns the status character for a given user on a channel, e.g. @ for op,
  * % for halfop etc. If the user has several modes set, the highest mode
  * the user has must be returned. */
 
-char* cmode(userrec *user, chanrec *chan)
+const char* cmode(userrec *user, chanrec *chan)
 {
        if ((!user) || (!chan))
        {
@@ -310,31 +198,43 @@ char* cmode(userrec *user, chanrec *chan)
                return "";
        }
 
-       for (unsigned int i = 0; i < user->chans.size(); i++)
+       for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
        {
-               if (user->chans[i].channel)
+               if ((*i)->channel == chan)
                {
-                       if ((!strcasecmp(user->chans[i].channel->name,chan->name)) && (chan != NULL))
+                       if (((*i)->uc_modes & UCMODE_OP) > 0)
+                       {
+                               return "@";
+                       }
+                       if (((*i)->uc_modes & UCMODE_HOP) > 0)
                        {
-                               if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
-                               {
-                                       return "@";
-                               }
-                               if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
-                               {
-                                       return "%";
-                               }
-                               if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
-                               {
-                                       return "+";
-                               }
-                               return "";
+                               return "%";
                        }
+                       if (((*i)->uc_modes & UCMODE_VOICE) > 0)
+                       {
+                               return "+";
+                       }
+                       return "";
                }
        }
        return "";
 }
 
+int cflags(userrec *user, chanrec *chan)
+{
+       if ((!chan) || (!user))
+               return 0;
+
+       for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
+       {
+               if ((*i)->channel == chan)
+               {
+                       return (*i)->uc_modes;
+               }
+       }
+       return 0;
+}
+
 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
  * highest mode the user has must be returned. */
@@ -350,109 +250,50 @@ int cstatus(userrec *user, chanrec *chan)
        if (is_uline(user->server))
                return STATUS_OP;
 
-       for (unsigned int i = 0; i < user->chans.size(); i++)
+       for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
        {
-               if (user->chans[i].channel)
+               if ((*i)->channel == chan)
                {
-                       if ((!strcasecmp(user->chans[i].channel->name,chan->name)) && (chan != NULL))
+                       if (((*i)->uc_modes & UCMODE_OP) > 0)
                        {
-                               if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
-                               {
-                                       return STATUS_OP;
-                               }
-                               if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
-                               {
-                                       return STATUS_HOP;
-                               }
-                               if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
-                               {
-                                       return STATUS_VOICE;
-                               }
-                               return STATUS_NORMAL;
+                               return STATUS_OP;
                        }
-               }
-       }
-       return STATUS_NORMAL;
-}
-
-/* returns 1 if user u has channel c in their record, 0 if not */
-
-int has_channel(userrec *u, chanrec *c)
-{
-       if ((!u) || (!c))
-       {
-               log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
-               return 0;
-       }
-       for (unsigned int i =0; i < u->chans.size(); i++)
-       {
-               if (u->chans[i].channel)
-               {
-                       if (!strcasecmp(u->chans[i].channel->name,c->name))
+                       if (((*i)->uc_modes & UCMODE_HOP) > 0)
                        {
-                               return 1;
+                               return STATUS_HOP;
                        }
+                       if (((*i)->uc_modes & UCMODE_VOICE) > 0)
+                       {
+                               return STATUS_VOICE;
+                       }
+                       return STATUS_NORMAL;
                }
        }
-       return 0;
-}
-
-
-void TidyBan(char *ban)
-{
-       if (!ban) {
-               log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
-               return;
-       }
-       
-       char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
-
-       strlcpy(temp,ban,MAXBUF);
-
-       char* pos_of_pling = strchr(temp,'!');
-       char* pos_of_at = strchr(temp,'@');
-
-       pos_of_pling[0] = '\0';
-       pos_of_at[0] = '\0';
-       pos_of_pling++;
-       pos_of_at++;
-
-       strlcpy(NICK,temp,NICKMAX);
-       strlcpy(IDENT,pos_of_pling,IDENTMAX+1);
-       strlcpy(HOST,pos_of_at,160);
-
-       snprintf(ban,MAXBUF,"%s!%s@%s",NICK,IDENT,HOST);
+       return STATUS_NORMAL;
 }
 
-char lst[MAXBUF];
-
 std::string chlist(userrec *user,userrec* source)
 {
-       std::string cmp = "";
-       std::string lst = "";
-        log(DEBUG,"chlist: %s",user->nick);
-       if (!user)
-       {
-               return lst;
-       }
-       for (unsigned int i = 0; i < user->chans.size(); i++)
+       std::string list;
+       
+       if (!user || !source)
+               return "";
+       
+       for (std::vector<ucrec*>::const_iterator i = user->chans.begin(); i != user->chans.end(); i++)
        {
-               if (user->chans[i].channel != NULL)
-               {
-                       if (user->chans[i].channel->name)
+               ucrec* rec = *i;
+               
+               if(rec->channel && rec->channel->name)
+               {       
+                       /* If the target is the same as the sender, let them see all their channels.
+                        * If the channel is NOT private/secret OR the user shares a common channel
+                        * If the user is an oper, and the <options:operspywhois> option is set.
+                        */
+                       if ((source == user) || (*source->oper && Config->OperSpyWhois) || (((!rec->channel->modes[CM_PRIVATE]) && (!rec->channel->modes[CM_SECRET])) || (rec->channel->HasUser(source))))
                        {
-                               cmp = std::string(user->chans[i].channel->name) + " ";
-                               if (!strstr(lst.c_str(),cmp.c_str()))
-                               {
-                                       // if the channel is NOT private/secret, OR the source user is on the channel
-                                       if (((!(user->chans[i].channel->binarymodes & CM_PRIVATE)) && (!(user->chans[i].channel->binarymodes & CM_SECRET))) || (has_channel(source,user->chans[i].channel)))
-                                       {
-                                               lst = lst + std::string(cmode(user,user->chans[i].channel)) + std::string(user->chans[i].channel->name) + " ";
-                                       }
-                               }
+                               list.append(cmode(user, rec->channel)).append(rec->channel->name).append(" ");
                        }
                }
        }
-       return lst;
+       return list;
 }
-