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irc.php
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<?php
#####################################################################################################
# TODO: PRIVMSG EVENTS APPEAR IN CHANNEL WITH ANY ALIAS LOCK
# TODO: PIPED SCRIPTS => ~alias1 trailing | ~alias2 trailing | ~alias3 trailing (stdout of left pipes to shellarg of right) ???
# TODO: OPTION TO REDIRECT PRIVMSG OUTPUT FROM SCRIPTS TO A BUCKET
# TODO: /WAIT COMMAND THAT ALLOWS INDIVIDUAL SCRIPTS TO BE HALTED TILL A CERTAIN COMMAND IS RECEIVED BY THE BOT (SIMILAR USAGE TO BUCKET_GET)
# TODO: QUIT COMMANDS FOR SCRIPTS (SIMILAR TO INIT & STARTUP) - USEFUL FOR SHUTTING DOWN DATA SERVERS
# TODO: ADD FLAG TO HAVE EXEC IGNORE ITSELF
# TODO: ADD && OPERATOR FOR STRINGING COMMANDS TOGETHER. OUTPUT FROM EACH COMMAND SHOULD BE ON SEPARATE LINES
require_once("irc_lib.php");
set_time_limit(0); # script needs to run for indefinite time (overrides setting in php.ini)
ini_set("display_errors","on");
ini_set("error_reporting",E_ALL);
date_default_timezone_set("UTC");
define("START_TIME",microtime(True)); # used for %%start%% template
if (isset($argv[1])==False)
{
# default installation-specific settings
define("DEFAULT_NICK","x");
define("USER_NAME","x");
define("FULL_NAME","exec.bot");
define("PASSWORD_FILE","../pwd/exec");
define("BUCKETS_FILE","../data/buckets");
define("IGNORE_FILE","../data/ignore");
define("EXEC_FILE","exec.txt");
define("INIT_CHAN_LIST","#crutchy,#debug"); # comma delimited
define("IRC_HOST_CONNECT","chat.soylentnews.org");
define("IRC_HOST","irc.sylnt.us");
define("IRC_PORT","6697");
define("OPERATOR_ACCOUNT","crutchy");
define("OPERATOR_HOSTNAME","709-27-2-01.cust.aussiebb.net");
define("DEBUG_CHAN","#debug");
define("NICKSERV_IDENTIFY_PROMPT","You have 60 seconds to identify to your nickname before it is changed.");
define("ADMIN_ACCOUNTS","chromas,juggs,martyb,cmn32480");
define("MYSQL_LOG","1");
define("NICKSERV_IDENTIFY","1");
define("IFACE_ENABLE","0");
define("SSL_PEER_NAME","*.soylentnews.org");
define("SSL_CA_FILE","/etc/ssl/certs/ca-certificates.crt");
#define("SSL_CA_FILE","/home/jared/git/data/soylentnews.crt"); # cafile must contain both peer cert (https://staff.soylentnews.org/~bob/wildcard.crt) and then CA cert (http://sylnt.us/SoylentNewsCA.crt) in single bundled file in order of peer, then CA
}
elseif (file_exists($argv[1])==True)
{
$settings=file_get_contents($argv[1]);
$settings=explode("\n",$settings);
for ($i=0;$i<count($settings);$i++)
{
$line=trim($settings[$i]);
if ($line=="")
{
continue;
}
$keyval=explode("=",$line);
if (count($keyval)<>2)
{
continue;
}
define($keyval[0],$keyval[1]);
}
}
else
{
die("INVALID COMMAND LINE ARGUMENT\n");
}
if (MYSQL_LOG=="1")
{
require_once("scripts/lib_mysql.php");
}
define("EXEC_OUTPUT_BUFFER_FILE","../data/exec_iface");
define("EXEC_DELIM","|");
define("EXEC_DIRECTIVE_DELIM"," ");
define("EXEC_INCLUDE","include");
define("EXEC_INIT","init");
define("EXEC_STARTUP","startup");
define("EXEC_HELP","help");
define("FILE_DIRECTIVE_DELIM",":");
define("FILE_DIRECTIVE_EXEC","exec");
define("FILE_DIRECTIVE_INIT","init");
define("FILE_DIRECTIVE_STARTUP","startup");
define("FILE_DIRECTIVE_HELP","help");
define("MAX_MSG_LENGTH",458);
define("IGNORE_TIME",20); # seconds (alias abuse control)
define("DELTA_TOLERANCE",1.5); # seconds (alias abuse control)
define("TEMPLATE_DELIM","%%");
# stdout bot directives
define("DIRECTIVE_QUIT","<<quit>>");
# internally used buckets
define("BUCKET_IGNORE_NEXT","<<BOT_IGNORE_NEXT>>");
define("BUCKET_USERS","<<EXEC_USERS>>");
define("BUCKET_EVENT_HANDLERS","<<EXEC_EVENT_HANDLERS>>");
define("BUCKET_CONNECTION_ESTABLISHED","<<IRC_CONNECTION_ESTABLISHED>>");
define("BUCKET_SELF_TRIGGER_EVENTS_FLAG","<<SELF_TRIGGER_EVENTS_FLAG>>");
define("BUCKET_EXEC_LIST","<<EXEC_LIST>>");
define("BUCKET_BOT_NICK","<<BOT_NICK>>");
define("BUCKET_ADMIN_ACCOUNTS_LIST","<<ADMIN_ACCOUNTS_LIST>>");
define("BUCKET_OPERATOR_ACCOUNT","<<OPERATOR_ACCOUNT>>");
define("BUCKET_OPERATOR_HOSTNAME","<<OPERATOR_HOSTNAME>>");
define("BUCKET_MEMORY_USAGE","<<BOT_MEMORY_USAGE>>");
define("BUCKET_OUTPUT_CONTROL","<<OUTPUT_CONTROL>>");
define("BUCKET_SHUTDOWN","<<SHUTDOWN>>");
define("BUCKET_PROCESS_TEMPLATE_PREFIX","process_template_");
define("BUCKET_ALIAS_ELEMENT_PREFIX","alias_element_");
$internal_bucket_indexes=array(
BUCKET_IGNORE_NEXT,
BUCKET_USERS,
BUCKET_EVENT_HANDLERS,
BUCKET_CONNECTION_ESTABLISHED,
#BUCKET_SELF_TRIGGER_EVENTS_FLAG,
BUCKET_EXEC_LIST,
BUCKET_BOT_NICK,
BUCKET_PROCESS_TEMPLATE_PREFIX,
BUCKET_ALIAS_ELEMENT_PREFIX);
# reserved aliases
define("ALIAS_ALL","*");
define("ALIAS_INIT","<init>");
define("ALIAS_STARTUP","<startup>");
define("ALIAS_QUIT","<quit>");
# commands intercepted from stdout
# TODO: ADD COMMANDS TO DYNAMICALLY ADD/REMOVE BUCKET LOCKS TO AN ALIAS DEFINITION
define("CMD_BUCKET_GET","BUCKET_GET");
define("CMD_BUCKET_SET","BUCKET_SET");
define("CMD_BUCKET_UNSET","BUCKET_UNSET");
define("CMD_BUCKET_APPEND","BUCKET_APPEND");
define("CMD_BUCKET_LIST","BUCKET_LIST");
define("CMD_INTERNAL","INTERNAL");
define("CMD_PAUSE","BOT_IRC_PAUSE");
define("CMD_UNPAUSE","BOT_IRC_UNPAUSE");
define("CMD_INIT","INIT");
define("CMD_STARTUP","STARTUP");
define("CMD_DELETE_HANDLER","DELETE_HANDLER");
define("PREFIX_DELIM","/");
define("PREFIX_IRC",PREFIX_DELIM."IRC");
define("PREFIX_EXEC_ADD",PREFIX_DELIM."EXEC-ADD");
define("PREFIX_EXEC_DEL",PREFIX_DELIM."EXEC-DEL");
define("PREFIX_EXEC_SAVE",PREFIX_DELIM."EXEC-SAVE");
define("PREFIX_PRIVMSG",PREFIX_DELIM."PRIVMSG");
define("PREFIX_BUCKET_GET",PREFIX_DELIM.CMD_BUCKET_GET);
define("PREFIX_BUCKET_SET",PREFIX_DELIM.CMD_BUCKET_SET);
define("PREFIX_BUCKET_UNSET",PREFIX_DELIM.CMD_BUCKET_UNSET);
define("PREFIX_BUCKET_APPEND",PREFIX_DELIM.CMD_BUCKET_APPEND);
define("PREFIX_BUCKET_LIST",PREFIX_DELIM.CMD_BUCKET_LIST);
define("PREFIX_INTERNAL",PREFIX_DELIM.CMD_INTERNAL);
define("PREFIX_PAUSE",PREFIX_DELIM.CMD_PAUSE);
define("PREFIX_UNPAUSE",PREFIX_DELIM.CMD_UNPAUSE);
define("PREFIX_DELETE_HANDLER",PREFIX_DELIM.CMD_DELETE_HANDLER);
define("PREFIX_READER_EXEC_LIST",PREFIX_DELIM."READER_EXEC_LIST");
define("PREFIX_READER_BUCKETS",PREFIX_DELIM."READER_BUCKETS");
define("PREFIX_READER_HANDLES",PREFIX_DELIM."READER_HANDLES");
# internal aliases (can also use in exec file with alias locking, but that would be just weird)
define("ALIAS_INTERNAL_RESTART","~restart-internal");
define("ALIAS_ADMIN_ALIAS_MACRO","~alias-macro");
define("ALIAS_ADMIN_QUIT","~quit");
define("ALIAS_ADMIN_NICK","~nick");
define("ALIAS_ADMIN_PS","~ps");
define("ALIAS_ADMIN_KILL","~kill");
define("ALIAS_ADMIN_KILLALL","~killall");
define("ALIAS_ADMIN_RESTART","~restart");
define("ALIAS_ADMIN_REHASH","~rehash");
define("ALIAS_ADMIN_DEST_OVERRIDE","~dest-override");
define("ALIAS_ADMIN_DEST_CLEAR","~dest-clear");
define("ALIAS_ADMIN_IGNORE","~ignore");
define("ALIAS_ADMIN_UNIGNORE","~unignore");
define("ALIAS_ADMIN_LIST_IGNORE","~ignore-list");
define("ALIAS_ADMIN_BUCKETS_DUMP","~buckets-dump"); # dump buckets to terminal
define("ALIAS_ADMIN_BUCKETS_SAVE","~buckets-save"); # save buckets to file
define("ALIAS_ADMIN_BUCKETS_LOAD","~buckets-load"); # load buckets from file
define("ALIAS_ADMIN_BUCKETS_FLUSH","~buckets-flush"); # re-initialize buckets
define("ALIAS_ADMIN_BUCKETS_LIST","~buckets-list"); # output list of set bucket indexes to the terminal
define("ALIAS_ADMIN_EXEC_CONFLICTS","~exec-conflicts");
define("ALIAS_ADMIN_EXEC_LIST","~exec-list");
define("ALIAS_ADMIN_EXEC_TIMERS","~exec-timers");
define("ALIAS_ADMIN_EXEC_ERRORS","~exec-errors");
define("ALIAS_LOCK","~lock");
define("ALIAS_UNLOCK","~unlock");
define("ALIAS_LIST","~list");
define("ALIAS_LIST_AUTH","~list-auth");
# exec file shell command templates (replaced by the bot with actual values before executing)
define("TEMPLATE_TRAILING","trailing");
define("TEMPLATE_NICK","nick");
define("TEMPLATE_DESTINATION","dest");
define("TEMPLATE_START","start");
define("TEMPLATE_ALIAS","alias");
define("TEMPLATE_DATA","data");
define("TEMPLATE_ITEMS","items");
define("TEMPLATE_CMD","cmd");
define("TEMPLATE_PARAMS","params");
define("TEMPLATE_TIMESTAMP","timestamp");
define("TEMPLATE_SERVER","server");
define("TEMPLATE_USER","user");
define("TEMPLATE_HOSTNAME","hostname");
define("TEMPLATE_PREFIX","prefix");
define("THROTTLE_LOCKOUT_TIME",10); # sec
define("ANTI_FLOOD_DELAY",0.7); # sec
define("RAWMSG_TIME_COUNT",5); # messages to send without any delays
$admin_accounts=explode(",",ADMIN_ACCOUNTS);
$alias_locks=array(); # optionally stores an alias for each nick, which then treats every privmsg by that nick as being prefixed by the set alias
$handles=array(); # stores executed process information
$time_deltas=array(); # keeps track of how often nicks call an alias (used for alias abuse control)
$buckets=array(); # common place for scripts to store stuff (index cannot contain spaces, bucket content must be a string)
$dest_overrides=array(); # optionally stores a destination for each nick, which treats every privmsg by that nick as having the set destination
$bucket_locks=array(); # any bucket index put here by execution of an alias with bucket locks in its definition line cannot be read or written by other scripts: index=>array(pid1,pid2,etc)
$admin_data="";
$admin_is_sock="";
$irc_pause=False;
$throttle_time=False; # set when "throttled" is detected in a message from the server
$rawmsg_times=array();
# aliases that may only be executed by the bot operator account
$operator_aliases=array(
ALIAS_ADMIN_ALIAS_MACRO);
$admin_aliases=array(
ALIAS_ADMIN_QUIT,
ALIAS_ADMIN_NICK,
ALIAS_ADMIN_RESTART,
ALIAS_ADMIN_PS,
ALIAS_ADMIN_KILL,
ALIAS_ADMIN_KILLALL,
ALIAS_ADMIN_REHASH,
ALIAS_ADMIN_DEST_OVERRIDE,
ALIAS_ADMIN_DEST_CLEAR,
ALIAS_ADMIN_BUCKETS_DUMP,
ALIAS_ADMIN_BUCKETS_SAVE,
ALIAS_ADMIN_BUCKETS_LOAD,
ALIAS_ADMIN_BUCKETS_FLUSH,
ALIAS_ADMIN_BUCKETS_LIST,
ALIAS_ADMIN_IGNORE,
ALIAS_ADMIN_UNIGNORE,
ALIAS_ADMIN_LIST_IGNORE,
ALIAS_ADMIN_EXEC_CONFLICTS,
ALIAS_ADMIN_EXEC_LIST,
ALIAS_ADMIN_EXEC_TIMERS,
ALIAS_ADMIN_EXEC_ERRORS);
$reserved_aliases=array(
ALIAS_ALL,
ALIAS_INIT,
ALIAS_STARTUP,
ALIAS_QUIT);
$silent_timeout_commands=array(
CMD_INTERNAL,
CMD_BUCKET_GET,
CMD_BUCKET_SET,
CMD_BUCKET_UNSET,
CMD_BUCKET_APPEND,
CMD_BUCKET_LIST,
CMD_PAUSE,
CMD_UNPAUSE);
$valid_data_cmd=get_valid_data_cmd();
$init=array();
$startup=array();
$help=array();
initialize_buckets();
$exec_errors=array(); # stores exec load errors
$exec_list=exec_load();
if ($exec_list===False)
{
term_echo("error loading exec file");
return;
}
$ignore_list=array();
if (file_exists(IGNORE_FILE)==True)
{
$ignore_data=file_get_contents(IGNORE_FILE);
if ($ignore_data!==False)
{
$ignore_list=explode("\n",$ignore_data);
}
}
delete_empty_elements($ignore_list);
$direct_stdin=fopen("php://stdin","r");
stream_set_blocking($direct_stdin,0);
if (file_exists(EXEC_OUTPUT_BUFFER_FILE)==True)
{
unlink(EXEC_OUTPUT_BUFFER_FILE);
}
if (IFACE_ENABLE==="1")
{
if (posix_mkfifo(EXEC_OUTPUT_BUFFER_FILE,0700)==False)
{
term_echo("error creating output buffer file");
return;
}
$out_buffer=fopen(EXEC_OUTPUT_BUFFER_FILE,"a+");
if ($out_buffer===False)
{
term_echo("error opening output buffer file for writing");
return;
}
stream_set_blocking($out_buffer,0);
}
init();
$socket=initialize_socket();
initialize_irc_connection();
# main program loop
while (True)
{
for ($i=0;$i<count($handles);$i++)
{
if (isset($handles[$i])==False)
{
continue;
}
if (handle_process($handles[$i])==False)
{
unset($handles[$i]);
}
}
$handles=array_values($handles);
handle_socket($socket);
handle_direct_stdin();
process_timed_execs();
}
#####################################################################################################
function term_echo($msg)
{
echo "\033[33m".date("Y-m-d H:i:s",microtime(True))." > \033[31m$msg\033[0m\n";
}
#####################################################################################################
function privmsg($destination,$nick,$msg)
{
global $dest_overrides;
if ($destination=="")
{
term_echo("PRIVMSG: DESTINATION NOT SPECIFIED: nick=\"$nick\", msg=\"$msg\"");
return;
}
if ($msg=="")
{
term_echo("PRIVMSG: NO TEXT TO SEND: nick=\"$nick\", destination=\"$destination\"");
return;
}
$msg=substr($msg,0,MAX_MSG_LENGTH);
if (isset($dest_overrides[$nick][$destination])==True)
{
$data=":".get_bot_nick()." PRIVMSG ".$dest_overrides[$nick][$destination]." :$msg";
rawmsg($data);
}
else
{
if (substr($destination,0,1)=="#")
{
$data=":".get_bot_nick()." PRIVMSG $destination :$msg";
rawmsg($data);
}
else
{
$data=":".get_bot_nick()." PRIVMSG $nick :$msg";
rawmsg($data);
}
}
}
#####################################################################################################
function rawmsg($msg,$obfuscate=False)
{
global $socket;
global $throttle_time;
global $rawmsg_times;
if ($throttle_time!==False)
{
$delta=microtime(True)-$throttle_time;
if ($delta>THROTTLE_LOCKOUT_TIME)
{
$throttle_time=False;
}
else
{
term_echo("*** REFUSED OUTGOING MESSAGE DUE TO SERVER THROTTLING: $msg");
return;
}
}
$n=count($rawmsg_times);
if ($n>0)
{
$last=$rawmsg_times[$n-1];
$dt=microtime(True)-$last;
if ($dt>THROTTLE_LOCKOUT_TIME)
{
$rawmsg_times=array();
}
else
{
if ($n>=RAWMSG_TIME_COUNT)
{
usleep(ANTI_FLOOD_DELAY*1e6);
}
}
}
fwrite($socket,$msg."\n");
$rawmsg_times[]=microtime(True);
while (count($rawmsg_times)>RAWMSG_TIME_COUNT)
{
array_shift($rawmsg_times);
}
if ($obfuscate==False)
{
handle_data($msg."\n",True,False,True);
}
else
{
term_echo("RAWMSG: (obfuscated)");
}
}
#####################################################################################################
?>