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-rw-r--r--src/userprocess.cpp391
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diff --git a/src/userprocess.cpp b/src/userprocess.cpp
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+++ b/src/userprocess.cpp
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+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
+ * E-mail:
+ * <brain@chatspike.net>
+ * <Craig@chatspike.net>
+ *
+ * Written by Craig Edwards, Craig McLure, and others.
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+/* Now with added unF! ;) */
+
+using namespace std;
+
+#include "inspircd_config.h"
+#include "inspircd.h"
+#include "inspircd_io.h"
+#include "inspircd_util.h"
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/errno.h>
+#include <sys/ioctl.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>
+#include <deque>
+#include <sched.h>
+#ifdef THREADED_DNS
+#include <pthread.h>
+#endif
+#include "users.h"
+#include "ctables.h"
+#include "globals.h"
+#include "modules.h"
+#include "dynamic.h"
+#include "wildcard.h"
+#include "message.h"
+#include "mode.h"
+#include "commands.h"
+#include "xline.h"
+#include "inspstring.h"
+#include "dnsqueue.h"
+#include "helperfuncs.h"
+#include "hashcomp.h"
+#include "socketengine.h"
+
+extern int MODCOUNT;
+extern int openSockfd[MAXSOCKS];
+extern bool nofork;
+extern bool unlimitcore;
+extern struct sockaddr_in client,server;
+extern char addrs[MAXBUF][255];
+extern socklen_t length;
+extern char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
+
+extern char DisabledCommands[MAXBUF];
+
+extern bool AllowHalfop;
+extern bool AllowProtect;
+extern bool AllowFounder;
+
+extern std::vector<Module*> modules;
+extern std::vector<std::string> module_names;
+extern std::vector<ircd_module*> factory;
+
+extern std::vector<InspSocket*> module_sockets;
+
+extern SocketEngine* SE;
+
+void ProcessUser(userrec* cu)
+{
+ int result = EAGAIN;
+ log(DEBUG,"Processing user with fd %d",cu->fd);
+ int MOD_RESULT = 0;
+ int result2 = 0;
+ FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
+ if (!MOD_RESULT)
+ {
+ result = cu->ReadData(data, 65535);
+ }
+ else
+ {
+ log(DEBUG,"Data result returned by module: %d",MOD_RESULT);
+ result = result2;
+ }
+ log(DEBUG,"Read result: %d",result);
+ if (result)
+ {
+ statsRecv += result;
+ // perform a check on the raw buffer as an array (not a string!) to remove
+ // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
+ // hopefully this should stop even more people whining about "Unknown command: *"
+ for (int checker = 0; checker < result; checker++)
+ {
+ if ((data[checker] == 0) || (data[checker] == 7))
+ data[checker] = ' ';
+ }
+ if (result > 0)
+ data[result] = '\0';
+ userrec* current = cu;
+ int currfd = current->fd;
+ int floodlines = 0;
+ // add the data to the users buffer
+ if (result > 0)
+ {
+ if (!current->AddBuffer(data))
+ {
+ // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
+ if (current->registered == 7)
+ {
+ kill_link(current,"RecvQ exceeded");
+ }
+ else
+ {
+ WriteOpers("*** Excess flood from %s",current->ip);
+ log(DEFAULT,"Excess flood from: %s",current->ip);
+ add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+ apply_lines();
+ }
+ return;
+ }
+ if (current->recvq.length() > (unsigned)NetBufferSize)
+ {
+ if (current->registered == 7)
+ {
+ kill_link(current,"RecvQ exceeded");
+ }
+ else
+ {
+ WriteOpers("*** Excess flood from %s",current->ip);
+ log(DEFAULT,"Excess flood from: %s",current->ip);
+ add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+ apply_lines();
+ }
+ return;
+ }
+ // while there are complete lines to process...
+ while (current->BufferIsReady())
+ {
+ floodlines++;
+ if (TIME > current->reset_due)
+ {
+ current->reset_due = TIME + current->threshold;
+ current->lines_in = 0;
+ }
+ current->lines_in++;
+ if (current->lines_in > current->flood)
+ {
+ log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ kill_link(current,"Excess flood");
+ return;
+ }
+ if ((floodlines > current->flood) && (current->flood != 0))
+ {
+ if (current->registered == 7)
+ {
+ log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ kill_link(current,"Excess flood");
+ }
+ else
+ {
+ add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
+ apply_lines();
+ }
+ return;
+ }
+ char sanitized[MAXBUF];
+ // use GetBuffer to copy single lines into the sanitized string
+ std::string single_line = current->GetBuffer();
+ current->bytes_in += single_line.length();
+ current->cmds_in++;
+ if (single_line.length()>512)
+ {
+ log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
+ kill_link(current,"Excess flood");
+ return;
+ }
+ strlcpy(sanitized,single_line.c_str(),MAXBUF);
+ if (*sanitized)
+ {
+ userrec* old_comp = fd_ref_table[currfd];
+ // we're gonna re-scan to check if the nick is gone, after every
+ // command - if it has, we're gonna bail
+ process_buffer(sanitized,current);
+ // look for the user's record in case it's changed... if theyve quit,
+ // we cant do anything more with their buffer, so bail.
+ // there used to be an ugly, slow loop here. Now we have a reference
+ // table, life is much easier (and FASTER)
+ userrec* new_comp = fd_ref_table[currfd];
+ if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
+ {
+ return;
+ }
+ else
+ {
+ /* The user is still here, flush their buffer */
+ current->FlushWriteBuf();
+ }
+ }
+ }
+ return;
+ }
+ if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
+ {
+ log(DEBUG,"killing: %s",cu->nick);
+ kill_link(cu,strerror(errno));
+ return;
+ }
+ }
+ // result EAGAIN means nothing read
+ else if (result == EAGAIN)
+ {
+ }
+ else if (result == 0)
+ {
+ log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
+ kill_link(cu,"Client exited");
+ log(DEBUG,"Bailing from client exit");
+ return;
+ }
+}
+
+
+/**
+ * This function is called once a second from the mainloop.
+ * It is intended to do background checking on all the user structs, e.g.
+ * stuff like ping checks, registration timeouts, etc.
+ * The function returns false when it is finished, and true if
+ * it needs to be run again (e.g. it has processed one of a batch of
+ * QUIT messages, but couldnt continue iterating because the iterator
+ * became invalid). This function is also responsible for checking
+ * if InspSocket derived classes are timed out.
+ */
+bool DoBackgroundUserStuff(time_t TIME)
+{
+ unsigned int numsockets = module_sockets.size();
+ for (std::vector<InspSocket*>::iterator a = module_sockets.begin(); a < module_sockets.end(); a++)
+ {
+ InspSocket* s = (InspSocket*)*a;
+ if (s->Timeout(TIME))
+ {
+ log(DEBUG,"Socket poll returned false, close and bail");
+ SE->DelFd(s->GetFd());
+ s->Close();
+ module_sockets.erase(a);
+ delete s;
+ break;
+ }
+ if (module_sockets.size() != numsockets) break;
+ }
+ /* TODO: We need a seperate hash containing only local users for this
+ */
+ for (user_hash::iterator count2 = clientlist.begin(); count2 != clientlist.end(); count2++)
+ {
+ /* Sanity checks for corrupted iterators (yes, really) */
+ userrec* curr = NULL;
+ if (count2->second)
+ curr = count2->second;
+ if ((long)curr == -1)
+ return false;
+
+ if ((curr) && (curr->fd != 0))
+ {
+ int currfd = curr->fd;
+ // we don't check the state of remote users.
+ if ((currfd != -1) && (currfd != FD_MAGIC_NUMBER))
+ {
+ curr->FlushWriteBuf();
+ if (curr->GetWriteError() != "")
+ {
+ log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
+ kill_link(curr,curr->GetWriteError().c_str());
+ return true;
+ }
+ // registration timeout -- didnt send USER/NICK/HOST in the time specified in
+ // their connection class.
+ if (((unsigned)TIME > (unsigned)curr->timeout) && (curr->registered != 7))
+ {
+ log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
+ kill_link(curr,"Registration timeout");
+ return true;
+ }
+ if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
+ {
+ log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
+ curr->dns_done = true;
+ statsDnsBad++;
+ FullConnectUser(curr);
+ if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+ return true;
+ }
+ if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
+ {
+ log(DEBUG,"dns done, registered=3, and modules ready, OK");
+ FullConnectUser(curr);
+ if (fd_ref_table[currfd] != curr) // something changed, bail pronto
+ return true;
+ }
+ if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
+ {
+ if ((!curr->lastping) && (curr->registered == 7))
+ {
+ log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
+ kill_link(curr,"Ping timeout");
+ return true;
+ }
+ Write(curr->fd,"PING :%s",ServerName);
+ log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
+ curr->lastping = 0;
+ curr->nping = TIME+curr->pingmax; // was hard coded to 120
+ }
+ }
+ }
+ }
+ return false;
+}
+
+void OpenLog(char** argv, int argc)
+{
+ std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
+ log_file = fopen(logpath.c_str(),"a+");
+ if (!log_file)
+ {
+ printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
+ Exit(ERROR);
+ }
+#ifdef IS_CYGWIN
+ printf("Logging to ircd.log...\n");
+#else
+ printf("Logging to %s...\n",logpath.c_str());
+#endif
+}
+
+
+void CheckRoot()
+{
+ if (geteuid() == 0)
+ {
+ printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
+ log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
+ Exit(ERROR);
+ }
+}
+
+
+void CheckDie()
+{
+ if (DieValue[0])
+ {
+ printf("WARNING: %s\n\n",DieValue);
+ log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
+ exit(0);
+ }
+}
+
+void LoadAllModules()
+{
+ /* We must load the modules AFTER initializing the socket engine, now */
+ MODCOUNT = -1;
+ for (int count = 0; count < ConfValueEnum("module",&config_f); count++)
+ {
+ ConfValue("module","name",count,configToken,&config_f);
+ printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
+ if (!LoadModule(configToken))
+ {
+ log(DEFAULT,"Exiting due to a module loader error.");
+ printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
+ Exit(0);
+ }
+ }
+ log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
+}
+
+