diff options
Diffstat (limited to 'toj/php/problem.inc.php')
| -rw-r--r-- | toj/php/problem.inc.php | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/toj/php/problem.inc.php b/toj/php/problem.inc.php new file mode 100644 index 0000000..e41e633 --- /dev/null +++ b/toj/php/problem.inc.php @@ -0,0 +1,252 @@ +<?php +require_once('common.inc.php'); +require_once('user.inc.php'); +require_once('square.inc.php'); + +const PRONAME_LEN_MAX = 100; + +const CODE_LEN_MIN = 1; +const CODE_LEN_MAX = 102400; + +const SUBMIT_MIN_INTERVAL = 10; + +$LANGUAGE = array(0x1=>'C/C++', 0x2=>'JAVA', 0x4=>'Pascal'); +$EXTENSION = array(0x1=>'cpp', 0x2=>'java', 0x4=>'pas'); + +class problem +{ + public $proid; + public $modid; + public $proname; + public $hidden; + + public static function getmod($sqlc, $modid) + { + //return pmodname, smodname, jmodname for specified $modid. + //False if not found. + $result = pg_query_params($sqlc, 'SELECT * FROM "mod" WHERE "modid"=$1 LIMIT 1;', array($modid)); + $mret = pg_fetch_object($result); + pg_free_result($result); + if(!$mret) + return false; + return $mret; + } + public static function get($sqlc, $proid) + { + //return problem data: proid, modid, proname, pmodname, smodname, jmodname + //False if not found. + $result = pg_query_params($sqlc, 'SELECT * FROM "problem" WHERE "proid"=$1 LIMIT 1;', array(intval($proid))) or die ("Eerror_get_problem"); + $ret = pg_fetch_object($result, null, 'problem'); + pg_free_result($result); + if(!$ret) + return false; + + $ret->proid = intval($ret->proid); + $ret->modid = intval($ret->modid); + $ret->admin_uid = intval($ret->admin_uid); + + $mret = problem::getmod($sqlc, $ret->modid); + if(!$mret) + return false; + + $ret->pmodname = $mret->pmodname; + $ret->smodname = $mret->smodname; + $ret->jmodname = $mret->jmodname; + + return $ret; + } + + public static function is_available($sqlc, $proid, $uid = null) + { + //return whether the problem is available for user $_COOKIE['uid'] or not. + //USER_PER_PROADMIN always OK + //admin of problem always OK + //if HIDDEN , then NOT OK except admins + //in sqid=1 always OK , even if not login + //otherwise must exist at least one common square with relationship >= SQUARE_USER_ACTIVE + $uidnull = false; + if($uid == null) + { + $uid = intval($_COOKIE['uid']); + $uidnull = true; + } + $sqlr = pg_query_params('SELECT "hidden", "admin_uid" FROM "problem" WHERE "proid"=$1;', array($proid)); + $obj = pg_fetch_object($sqlr); + $hdn = $obj->hidden; + if($hdn == null) + return false; // no such problem + + if(sec_check_level($sqlc, USER_PER_PROADMIN, $uidnull?null:$uid)) + return true; + + if((!$uidnull || sec_is_login()) && $uid == intval($obj->admin_uid)) + return true; + + if($hdn == "t") + return false; + + $sqlstr = 'SELECT COUNT(*) FROM "pro_sq" WHERE "proid"=$1 AND "sqid"=$2;'; + $sqlarr = array($proid, 1); + $sqlr = pg_query_params($sqlstr, $sqlarr); + $ret = intval(pg_fetch_result($sqlr, 0)); + if($ret > 0) + return true; + + if($uidnull && !sec_is_login()) + return false; + + $sqlstr = 'SELECT COUNT("pro_sq"."sqid") FROM "pro_sq" INNER JOIN "us_sq" ON "pro_sq"."sqid"="us_sq"."sqid" WHERE "pro_sq"."proid"=$1 AND "us_sq"."uid"=$2 AND "us_sq"."relationship">=$3;'; + $sqlarr = array($proid, $uid, SQUARE_USER_ACTIVE); + $sqlr = pg_query_params($sqlstr, $sqlarr); + $ret = intval(pg_fetch_result($sqlr, 0)); + if($ret > 0) + return true; + + return false; + } + + public static function submit($sqlc, $proid, $uid, $lang, $code) + { + //Submit code(or data) : $proid, $uid, $lang, $code + //Return subid. False if failed. + + ////$submit_time = date('Y-m-d H:i:s'); + ////$last_update = $submit_time; + $sqlstr = 'INSERT INTO "submit" ("proid", "uid", "lang") VALUES ($1, $2, $3) RETURNING subid;'; + $sqlarr = array($proid, $uid, $lang); + $sqlr = pg_query_params($sqlstr, $sqlarr); + $subid = intval(pg_fetch_result($sqlr, 0)); + if(!$subid) + return false; + + global $EXTENSION; + $ext = $EXTENSION[intval($lang)]; + if($ext == null) + die('Ewrong_extension'); + + $parnum = $subid - ($subid%1000); + $pardir = '../center/submit/'.$parnum.'/'; + if(!is_dir($pardir)) + mkdir($pardir, 0755) or die('Ecannot_mkdir'); + mkdir($pardir.$subid, 0755) or die('Ecannot_mkdir'); + mkdir($pardir.$subid.'/data', 0755) or die('Ecannot_mkdir'); + mkdir($pardir.$subid.'/result', 0755) or die('Ecannot_mkdir'); + + //$file = fopen($pardir.$subid.'/data/'.$subid.'.'.$ext,'w'); + //20130205 tmp change + $file = fopen($pardir.$subid.'/data/main.'.$ext,'w'); + if(!$file) + die('Ewrite_file_failed'); + fwrite($file, $code); + fclose($file); + + return $subid; + } + + public static function add($sqlc, $pro) + { + //Add a new problem $pro into problem table. + //Return the inserted object. False if failed. + + $sqlstr = 'INSERT INTO "problem" ("modid", "proname", "hidden", "admin_uid") VALUES ($1, $2, $3, $4) RETURNING *;'; + $sqlarr = array($pro->modid, $pro->proname, $pro->hidden, $pro->admin_uid); + $sqlr = pg_query_params($sqlstr, $sqlarr); + if(!$sqlr) + return false; + $obj = pg_fetch_object($sqlr, null, 'problem'); + pg_free_result($sqlr); + if(!$obj) + return false; + + $obj->proid = intval($obj->proid); + $obj->modid = intval($obj->modid); + $obj->admin_uid = intval($obj->admin_uid); + + return $obj; + } + + public static function mod_get_lang($sqlc, $modid) + { + //get available language code (OR) format + //return language code + + $sqlstr = 'SELECT "lang" FROM "mod" WHERE "modid"=$1;'; + $sqlarr = array($modid); + $sqlr = pg_query_params($sqlstr, $sqlarr); + $ret = pg_fetch_result($sqlr, 0); + pg_free_result($sqlr); + if(!$ret) + return false; + return intval($ret); + } + + public static function recent_submit($sqlc, $uid, $time) + { + //return submission number in recent $time seconds. + $lasttime = date('Y-m-d H:i:s', time()-$time); + $sqlstr = 'SELECT COUNT(*) FROM "submit" WHERE "uid"=$1 AND "submit_time" >= $2;'; + $sqlarr = array($uid, $lasttime); + $sqlr = pg_query_params($sqlstr, $sqlarr); + $ret = pg_fetch_result($sqlr, 0); + if(!$ret) + return false; + return intval($ret); + } + + public static function send_socket($subid, $proid) + { + ///send socket to center. + //Return true if success, false if failed. + + $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); + $sconn = socket_connect($socket, '127.0.0.1', CENTER_SOCKET_PORT); + + if(!$sconn) + return false; + + $wret = socket_write($socket, $subid.chr(0).'{}'.chr(0)); + if($wret === false) + return false; + + + $cret = socket_read($socket, 1024); + if($cret === false) + return false; + if($cret[0] != 'S') + return false; + return true; + } + + public static function get_pro_stat($sqlc, $proid, $uid) + { + //get $uid 's score and is_ac of problem $proid. + + $ret = new stdClass(); + + $sqlstr = 'SELECT COUNT(*) FROM "submit" WHERE "proid"=$1 AND "uid"=$2 AND "result"=0;'; + $sqlarr = array($proid, $uid); + $res = pg_query_params($sqlc, $sqlstr, $sqlarr); + $acct = pg_fetch_result($res, 0); + $ret->is_ac = ($acct > 0); + + $sqlstr = 'SELECT "score" FROM "submit" WHERE "proid"=$1 AND "uid"=$2 ORDER BY "score" DESC LIMIT 1;'; + $sqlarr = array($proid, $uid); + $res = pg_query_params($sqlc, $sqlstr, $sqlarr); + $score = pg_fetch_result($res, 0); + if($score === false) + { + $ret->tried = false; + $ret->score = 0; + } + else + { + $ret->tried = true; + $ret->score = $score; + } + + return $ret; + } +} + + +?> |