1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
17 /* Now with added unF! ;) */
21 #include "inspircd_config.h"
22 #include "configreader.h"
25 #include <sys/errno.h>
26 #include <sys/ioctl.h>
27 #include <sys/utsname.h>
30 #include <ext/hash_map>
44 #include "inspstring.h"
47 #include "socketengine.h"
48 #include "userprocess.h"
51 #include "command_parse.h"
52 #include "cull_list.h"
54 void InspIRCd::ProcessUser(userrec* cu)
58 if (cu->fd == FD_MAGIC_NUMBER)
61 this->Log(DEBUG,"Processing user with fd %d",cu->fd);
63 if (this->Config->GetIOHook(cu->GetPort()))
70 MOD_RESULT = this->Config->GetIOHook(cu->GetPort())->OnRawSocketRead(cu->fd,ReadBuffer,sizeof(ReadBuffer),result2);
71 this->Log(DEBUG,"Data result returned by module: %d",MOD_RESULT);
73 catch (ModuleException& modexcept)
75 this->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason());
89 result = cu->ReadData(ReadBuffer, sizeof(ReadBuffer));
92 this->Log(DEBUG,"Read result: %d",result);
94 if ((result) && (result != -EAGAIN))
100 this->stats->statsRecv += result;
102 * perform a check on the raw buffer as an array (not a string!) to remove
103 * character 0 which is illegal in the RFC - replace them with spaces.
104 * XXX - no garauntee there's not \0's in the middle of the data,
105 * and no reason for it to be terminated either. -- Om
108 for (int checker = 0; checker < result; checker++)
110 if (ReadBuffer[checker] == 0)
111 ReadBuffer[checker] = ' ';
115 ReadBuffer[result] = '\0';
118 currfd = current->fd;
120 // add the data to the users buffer
123 if (!current->AddBuffer(ReadBuffer))
125 // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
126 if (current->registered == REG_ALL)
128 // Make sure they arn't flooding long lines.
129 if (TIME > current->reset_due)
131 current->reset_due = TIME + current->threshold;
132 current->lines_in = 0;
137 if (current->lines_in > current->flood)
139 this->Log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
140 this->WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
141 userrec::QuitUser(this, current,"Excess flood");
146 current->WriteServ("NOTICE %s :Your previous line was too long and was not delivered (Over 512chars) Please shorten it.", current->nick);
152 this->WriteOpers("*** Excess flood from %s",current->GetIPString());
153 this->Log(DEFAULT,"Excess flood from: %s",current->GetIPString());
154 XLines->add_zline(120,this->Config->ServerName,"Flood from unregistered connection",current->GetIPString());
155 XLines->apply_lines(APPLY_ZLINES);
161 if (current->recvq.length() > (unsigned)this->Config->NetBufferSize)
163 if (current->registered == REG_ALL)
165 userrec::QuitUser(this, current,"RecvQ exceeded");
169 this->WriteOpers("*** Excess flood from %s",current->GetIPString());
170 this->Log(DEFAULT,"Excess flood from: %s",current->GetIPString());
171 XLines->add_zline(120,this->Config->ServerName,"Flood from unregistered connection",current->GetIPString());
172 XLines->apply_lines(APPLY_ZLINES);
178 // while there are complete lines to process...
179 while (current->BufferIsReady())
181 if (TIME > current->reset_due)
183 current->reset_due = TIME + current->threshold;
184 current->lines_in = 0;
187 if (++current->lines_in > current->flood)
189 this->Log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
190 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
191 userrec::QuitUser(this, current,"Excess flood");
195 if ((++floodlines > current->flood) && (current->flood != 0))
197 if (current->registered == REG_ALL)
199 this->Log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
200 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
201 userrec::QuitUser(this, current,"Excess flood");
205 XLines->add_zline(120,this->Config->ServerName,"Flood from unregistered connection",current->GetIPString());
206 XLines->apply_lines(APPLY_ZLINES);
212 // use GetBuffer to copy single lines into the sanitized string
213 std::string single_line = current->GetBuffer();
214 current->bytes_in += single_line.length();
216 if (single_line.length() > 512)
217 single_line.resize(512);
219 userrec* old_comp = this->fd_ref_table[currfd];
221 this->Parser->ProcessBuffer(single_line,current);
223 * look for the user's record in case it's changed... if theyve quit,
224 * we cant do anything more with their buffer, so bail.
225 * there used to be an ugly, slow loop here. Now we have a reference
226 * table, life is much easier (and FASTER)
228 userrec* new_comp = this->fd_ref_table[currfd];
229 if ((currfd < 0) || (!this->fd_ref_table[currfd]) || (old_comp != new_comp))
235 /* The user is still here, flush their buffer */
236 current->FlushWriteBuf();
243 if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
245 this->Log(DEBUG,"killing: %s",cu->nick);
246 userrec::QuitUser(this,cu,strerror(errno));
251 // result EAGAIN means nothing read
252 else if ((result == EAGAIN) || (result == -EAGAIN))
256 else if (result == 0)
258 this->Log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
259 userrec::QuitUser(this,cu,"Client exited");
260 this->Log(DEBUG,"Bailing from client exit");
265 void InspIRCd::DoSocketTimeouts(time_t TIME)
267 unsigned int numsockets = this->module_sockets.size();
269 for (std::vector<InspSocket*>::iterator a = this->module_sockets.begin(); a < this->module_sockets.end(); a++)
273 if ((s) && (fd >= 0) && (fd < MAX_DESCRIPTORS) && (this->socket_ref[fd] != NULL) && (s->Timeout(TIME)))
275 this->Log(DEBUG,"userprocess.cpp: Socket poll returned false, close and bail");
276 this->socket_ref[fd] = NULL;
278 this->module_sockets.erase(a);
284 if (this->module_sockets.size() != numsockets)
290 * This function is called once a second from the mainloop.
291 * It is intended to do background checking on all the user structs, e.g.
292 * stuff like ping checks, registration timeouts, etc. This function is
293 * also responsible for checking if InspSocket derived classes are timed out.
295 void InspIRCd::DoBackgroundUserStuff(time_t TIME)
297 CullList GlobalGoners(this);
299 /* XXX: IT IS NOT SAFE TO USE AN ITERATOR HERE. DON'T EVEN THINK ABOUT IT. */
300 for (unsigned long count2 = 0; count2 != this->local_users.size(); count2++)
302 if (count2 >= this->local_users.size())
305 userrec* curr = this->local_users[count2];
310 * registration timeout -- didnt send USER/NICK/HOST
311 * in the time specified in their connection class.
313 if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != REG_ALL))
315 this->Log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
316 //ZapThisDns(curr->fd);
317 GlobalGoners.AddItem(curr,"Registration timeout");
321 * user has signed on with USER/NICK/PASS, and dns has completed, all the modules
322 * say this user is ok to proceed, fully connect them.
324 if ((TIME > curr->signon) && (curr->registered == REG_NICKUSER) && (AllModulesReportReady(curr)))
326 curr->dns_done = true;
327 //ZapThisDns(curr->fd);
328 this->stats->statsDnsBad++;
329 curr->FullConnect(&GlobalGoners);
332 if ((curr->dns_done) && (curr->registered == REG_NICKUSER) && (AllModulesReportReady(curr)))
334 this->Log(DEBUG,"dns done, registered=3, and modules ready, OK");
335 curr->FullConnect(&GlobalGoners);
336 //ZapThisDns(curr->fd);
339 // It's time to PING this user. Send them a ping.
340 if ((TIME > curr->nping) && (curr->registered == REG_ALL))
342 // This user didn't answer the last ping, remove them
345 GlobalGoners.AddItem(curr,"Ping timeout");
347 curr->nping = TIME+curr->pingmax;
350 curr->Write("PING :%s",this->Config->ServerName);
352 curr->nping = TIME+curr->pingmax;
356 * We can flush the write buffer as the last thing we do, because if they
357 * match any of the above conditions its no use flushing their buffer anyway.
360 curr->FlushWriteBuf();
361 if (*curr->GetWriteError())
363 GlobalGoners.AddItem(curr,curr->GetWriteError());
371 /* Remove all the queued users who are due to be quit, free memory used. */
372 GlobalGoners.Apply();