restructuring of boca's git

1 files changed, 931 insertions, 0 deletions

diff --git a/old/getextdata.php b/old/getextdata.php
new file mode 100644
index 0000000..7c9955d
--- /dev/null
+++ b/old/getextdata.php
@@ -0,0 +1,931 @@
+<?php
+//////////////////////////////////////////////////////////////////////////////////////////
+//BOCA Online Contest Administrator. Copyright (c) 2003-2004 Cassio Polpo de Campos.
+//It may be distributed under the terms of the Q Public License version 1.0. A copy of the
+//license can be found with this software or at http://www.opensource.org/licenses/qtpl.php
+//
+//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+//INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+//PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+//OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR
+//CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+//PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+//OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+///////////////////////////////////////////////////////////////////////////////////////////
+
+//retorna ip do cliente
+function getIP() {
+        if (getenv("HTTP_CLIENT_IP"))
+                $ip = getenv("HTTP_CLIENT_IP");
+        else
+        if(getenv("HTTP_X_FORWARDED_FOR"))
+                $ip = getenv("HTTP_X_FORWARDED_FOR");
+        else
+        if(getenv("REMOTE_ADDR"))
+                $ip = getenv("REMOTE_ADDR");
+        else
+                $ip = "UNKNOWN";
+        $ip = strtok ($ip, ",");
+        return $ip;
+}
+//para compatibilidade com versoes velhas e novas do php
+function DB_lo_open($conn, $file, $mode) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_loopen ($conn, $file, $mode);
+	else
+		return pg_lo_open ($conn, $file, $mode);
+}
+function DB_lo_read_all($id) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_loreadall ($id);
+	else
+		return pg_lo_read_all ($id);
+}
+function DB_lo_import($conn, $file) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_loimport ($file, $conn);
+	else
+		return pg_lo_import ($conn, $file);
+}
+function DB_lo_close($id) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_loclose ($id);
+	else
+		return pg_lo_close ($id);
+}
+function DB_lo_unlink($c,$id) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_lounlink ($id,$c);
+	else
+		return pg_lo_unlink ($c,$id);
+}
+function DB_lo_create($conn) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_locreate ($conn);
+	else
+		return pg_lo_create ($conn);
+}
+function DB_lo_write($fp, $data) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_lowrite ($fp, $data);
+	else
+		return pg_lo_write ($fp, $data);
+}
+function DB_lo_read($fp, $len) {
+	if (strcmp(phpversion(),'4.2.0')<0)
+		return pg_loread ($fp, $len);
+	else
+		return pg_lo_read ($fp, $len);
+}
+
+//abrir conexao com o banco de dados
+function DBConnect() {
+	$dbconn="host=localhost dbname=bocadb user=bocauser password=boca";
+	$conn = pg_connect ($dbconn);
+	if (!$conn) {
+		echo "Unable to connect to local database\n";
+		return null;
+	}
+	return $conn;
+}
+function DBExtConnect($c, $contest, $site) {
+        $r = DBExec($c, "select * from sitetable where sitenumber=$site and contestnumber=$contest");
+	if (DBnLines($r)==0) {
+                echo "Unable to find the site in the database (site=$site, contest=$contest).\n";
+		exit;
+	}
+	$st = DBRow($r,0);
+
+	if(($f = file("sqlpass.php"))===false) $pass="boca";
+	else $pass=trim($f[1]);
+
+	// gambiarra para testar se a conexao esta de pe
+	$fp = fsockopen ($st["siteip"], 5432, $errno, $errstr, 10);
+	if (!$fp) {
+    		echo "$errstr ($errno). Aborting this connection (ip=".$st["siteip"].").\n";
+		return null;
+	}
+    	fclose ($fp);
+	// se a conexao cair entre o teste acima e o connect abaixo, esse script pode demorar ate
+	// dar o timeout (no meu teste foram cerca de 3min para cada timeout)
+
+	$conn = pg_connect ("host=" . $st["siteip"] . " dbname=bocadb user=bocauser password=$pass");
+	if (!$conn) {
+		echo "Unable to connect to site $site (ip=".$st["siteip"].")\n";
+		return null;
+	}
+	echo "Connected to " .$st["siteip"].". Let's exchange data...\n";
+	return $conn;
+}
+
+function GetExternalData ($contest) {
+	$c = DBConnect();
+        if ($c==null) return;
+	$r = DBExec($c, "select * from contesttable where contestnumber=$contest");
+	if (DBnLines($r)==0) {
+		echo "Unable to find the contest $contest in the database.\n";
+		exit;
+	}
+	$ct = DBRow($r,0);
+	$localsite = $ct["contestlocalsite"];
+	$mainsite = $ct["contestmainsite"];
+
+	if ($mainsite!=$localsite) {
+          $r = DBExec($c, "select * from sitetable where sitenumber=".$ct["contestmainsite"]." and contestnumber=$contest");
+  	  if (DBnLines($r)==0) {
+                echo "Unable to find the main site in the database (site=$site, contest=$contest).\n";
+		exit;
+	  }
+	  $st = DBRow($r,0);
+	  if (($t = DBExtConnect($c, $contest, $st["sitenumber"]))!=null) {
+		DBExec($c, "begin work");
+
+		// sincronizando contest
+		$r = DBExec ($t, "select * from contesttable where contestnumber=$contest");
+		$n = DBnLines ($r);
+		$atual = DBRow($r,0);
+		if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+		DBExec ($c, "update contesttable set ".
+					"contestduration=".$atual["contestduration"].",".
+					"conteststartdate=".$atual["conteststartdate"].",".
+					"contestmaxfilesize=".$atual["contestmaxfilesize"].",".
+					"contestactive='".$atual["contestactive"]."',".
+					//"contestmainsite=".$atual["contestmainsite"].",".
+					"contestname='".escape_string($atual["contestname"])."',".
+					"contestlastmileanswer=".$atual["contestlastmileanswer"].",".
+					"contestlastmilescore=".$atual["contestlastmilescore"].",".
+					"contestpenalty=".$atual["contestpenalty"].",".
+					"updatetime=".$atual["updatetime"].
+				" where contestnumber=$contest and updatetime<".$atual["updatetime"]);
+		
+		// sincronizando answers
+		$r = DBExec ($t, "select * from answertable where contestnumber=$contest");
+		$rr = DBExec ($c, "select * from answertable where contestnumber=$contest for update");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "answers: external(site=$mainsite, reading=$mainsite)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["answernumber"]==$aqui["answernumber"] && $la["contestnumber"]==$aqui["contestnumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0; $upd=0; $ins=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				DBExec($c, "delete from answertable where contestnumber=$contest and answernumber=".$atual["answernumber"]);
+				$del++;
+			}
+		}
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				$upd++;
+				DBExec ($c, "update answertable set ".
+						"runanswer='".$atual["runanswer"]."',".
+						"yes='".$atual["yes"]."',".
+						"fake='".$atual["fake"]."',".
+						"updatetime=".$atual["updatetime"].
+						" where contestnumber=$contest and answernumber=".$atual["answernumber"].
+						" and updatetime<".$atual["updatetime"]);
+			} else if ($situacao[$j]=="inserir") {
+				$ins++;
+				DBExec($c,"insert into answertable (contestnumber, answernumber, runanswer, yes, fake, updatetime) values (" .
+					$contest.",".$atual["answernumber"].",'".$atual["runanswer"]."','".$atual["yes"]."',".
+					"'".$atual["fake"]."',".$atual["updatetime"].")");
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando languages
+		$r = DBExec ($t, "select * from langtable where contestnumber=$contest");
+		$rr = DBExec ($c, "select * from langtable where contestnumber=$contest for update");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "languages: external(site=$mainsite, reading=$mainsite)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["langnumber"]==$aqui["langnumber"] && $la["contestnumber"]==$aqui["contestnumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0; $upd=0; $ins=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				DBExec($c, "delete from langtable where contestnumber=$contest and langnumber=".$atual["langnumber"]);
+				$del++;
+			}
+		}
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				$upd++;
+				DBExec ($c, "update langtable set ".
+						"langname='".escape_string($atual["langname"])."',".
+						"updatetime=".$atual["updatetime"].
+						" where contestnumber=$contest and langnumber=".$atual["langnumber"].
+						" and updatetime<".$atual["updatetime"]);
+			} else if ($situacao[$j]=="inserir") {
+				$ins++;
+				DBExec($c,"insert into langtable (contestnumber, langnumber, langname, updatetime) values ($contest,".$atual["langnumber"].
+					",'".escape_string($atual["langname"])."',".$atual["updatetime"].")");
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando problems
+		$r = DBExec ($t, "select * from problemtable where contestnumber=$contest");
+		$rr = DBExec ($c, "select * from problemtable where contestnumber=$contest for update");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "problems: external(site=$mainsite, reading=$mainsite)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["problemnumber"]==$aqui["problemnumber"] && $la["contestnumber"]==$aqui["contestnumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0; $upd=0; $ins=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				DBExec($c, "delete from problemtable where contestnumber=$contest and problemnumber=".$atual["problemnumber"]);
+				$del++;
+			}
+		}
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="inserir") {
+				$ins++; $upd--;
+				DBExec($c,"insert into problemtable (contestnumber, problemnumber, problemname, updatetime) values ($contest,".
+					$atual["problemnumber"].",'".escape_string($atual["problemname"])."', 0)");
+			}
+			if ($situacao[$j]=="atualizar" || $situacao[$j]=="inserir") {
+				$upd++;
+				$p = DBRow($r2, 0);
+				if ($p["probleminputfile"]>0) DB_lo_unlink($c, $p["probleminputfile"]);
+				if ($p["problemsolfile"]>0) DB_lo_unlink($c, $p["problemsolfile"]);
+				DBExec($t, "begin work");
+				if ($atual["probleminputfile"]=="") $inputfile="null";
+				else {
+					$in = DB_lo_open($t, $atual["probleminputfile"], "r");
+					if (!$in) $inputfile="null";
+					else {
+						$inputfile = DB_lo_create ($c);
+						$out = DB_lo_open ($c, $inputfile, "w");
+						while (($buf = DB_lo_read ($in, 100000)) != false)
+							DB_lo_write ($out, $buf);
+						DB_lo_close ($out);
+						DB_lo_close ($in);
+					}
+				}
+				if ($atual["problemsolfile"]=="") $solfile="null";
+				else {
+					$in = DB_lo_open($t, $atual["problemsolfile"], "r");
+					if (!$in) $solfile="null";
+					else {
+						$solfile = DB_lo_create ($c);
+						$out = DB_lo_open ($c, $solfile, "w");
+						while (($buf = DB_lo_read ($in, 100000)) != false)
+							DB_lo_write ($out, $buf);
+						DB_lo_close ($out);
+						DB_lo_close ($in);
+					}
+				}
+				DBExec ($t, "commit work");
+
+				DBExec ($c, "update problemtable set ".
+						"problemname='".escape_string($atual["problemname"])."',".
+						"problemfullname='".escape_string($atual["problemfullname"])."',".
+						"problembasefilename='".escape_string($atual["problembasefilename"])."',".
+						"probleminputfilename='".escape_string($atual["probleminputfilename"])."',".
+						"problemsolfilename='".escape_string($atual["problemsolfilename"])."',".
+						"fake='".$atual["fake"]."',".
+						"probleminputfile=".$inputfile.",".
+						"problemsolfile=".$solfile.",".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and problemnumber=".$atual["problemnumber"].
+					" and updatetime<".$atual["updatetime"]);
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+		DBExec($c, "commit work");
+	  }
+
+	}
+
+	$r = DBExec ($c, "select * from sitetable where contestnumber=$contest");
+	$n = DBnlines($r);
+	if ($n == 0) {
+		echo "Unable to find sites in the database.\n";
+		exit;
+	}
+	$st = array();
+	for ($i=0;$i<$n;$i++) {
+		$st[$i] = DBRow($r,$i);
+	}
+	
+	for ($i=0; $i<count($st); $i++) {
+		$site=$st[$i]["sitenumber"];
+		if ($site==$ct["contestlocalsite"]) continue;
+		if (($t = DBExtConnect($c, $contest, $site))==null) continue;
+		DBExec($c, "begin work");
+
+		// sincronizando site
+		$r = DBExec ($t, "select * from sitetable where contestnumber=$contest and sitenumber=$site");
+		$rr = DBExec ($c, "select * from sitetable where contestnumber=$contest and sitenumber=$site for update");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		$atual = DBRow($r,0);
+		$p = DBRow($rr,0);
+//		if ($p["updatetime"]<$atual["updatetime"]) {
+			if ($atual["sitestartdate"]=="") $atual["sitestartdate"]="null";
+			if ($atual["sitelastmilescore"]=="") $atual["sitelastmilescore"]="null";
+			if ($atual["sitelastmileanswer"]=="") $atual["sitelastmileanswer"]="null";
+			if ($atual["siteenddate"]=="") $atual["siteenddate"]="null";
+			if ($atual["siteendeddate"]=="") $atual["siteendeddate"]="null";
+			if ($atual["siteautoend"]!="t") $atual["siteautoend"]="f";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			DBExec ($c, "update sitetable set ".
+				//"siteip='".escape_string($atual["siteip"])."',".
+				"sitename='".escape_string($atual["sitename"])."',".
+				"siteactive='".escape_string($atual["siteactive"])."',".
+				"sitepermitlogins='".escape_string($atual["sitepermitlogins"])."',".
+				"sitestartdate=".$atual["sitestartdate"].",".
+				"sitelastmilescore=".$atual["sitelastmilescore"].",".
+				"sitelastmileanswer=".$atual["sitelastmileanswer"].",".
+				"siteenddate=".$atual["siteenddate"].",".
+				"siteendeddate=".$atual["siteendeddate"].",".
+				"siteautoend='".escape_string($atual["siteautoend"])."',".
+				"sitejudging='".escape_string($atual["sitejudging"])."',".
+				"siteglobalscore='".escape_string($atual["siteglobalscore"])."',".
+				"sitescorelevel=".$atual["sitescorelevel"].",".
+				"sitenextuser=".$atual["sitenextuser"].",".
+				"sitenextclar=".$atual["sitenextclar"].",".
+				"sitenextrun=".$atual["sitenextrun"].",".
+				"updatetime=".$atual["updatetime"].
+				" where contestnumber=$contest and sitenumber=".$atual["sitenumber"]);
+//				." and updatetime<".$atual["updatetime"]);
+//		}
+
+		// sincronizando users
+		$r = DBExec ($t, "select * from usertable where contestnumber=$contest and usersitenumber=$site");
+		$rr = DBExec ($c, "select * from usertable where contestnumber=$contest and usersitenumber=$site");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "users: external(site=$site, reading=$site)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["usernumber"]==$aqui["usernumber"] && $la["contestnumber"]==$aqui["contestnumber"] &&
+					$la["usersitenumber"]==$aqui["usersitenumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				DBExec($c, "delete from usertable where contestnumber=$contest and usersitenumber=$site and usernumber=".
+					$atual["usernumber"]);
+				$del++;
+			}
+		}
+		$upd=0; $ins=0;
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["userlastlogin"]=="") $atual["userlastlogin"]="null";
+			if ($atual["userlastlogout"]=="") $atual["userlastlogout"]="null";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				DBExec ($c, "update usertable set ".
+						"username='".escape_string($atual["username"])."',".
+						"userfullname='".escape_string($atual["userfullname"])."',".
+						"userdesc='".escape_string($atual["userdesc"])."',".
+						"usertype='".escape_string($atual["usertype"])."',".
+						"userenabled='".$atual["userenabled"]."',".
+						"usermultilogin='".$atual["usermultilogin"]."',".
+						"userpassword='".$atual["userpassword"]."',".
+						"userip='".$atual["userip"]."',".
+						"userlastlogin=".$atual["userlastlogin"].",".
+						"userlastlogout=".$atual["userlastlogout"].",".
+						"usersession='".$atual["usersession"]."',".
+						"userpermitip='".$atual["userpermitip"]."',".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and usersitenumber=".$atual["usersitenumber"].
+					" and usernumber=".$atual["usernumber"]." and updatetime<".$atual["updatetime"]);
+				$upd++;
+			} else if ($situacao[$j]=="inserir") {
+				DBExec ($c, "insert into usertable (username, userfullname, userdesc, usertype, userenabled, usermultilogin, ".
+						"userpassword, userip, userlastlogin, userlastlogout, usersession, userpermitip, updatetime, ".
+						"contestnumber, usersitenumber, usernumber) values (".
+						"'".escape_string($atual["username"])."',".
+						"'".escape_string($atual["userfullname"])."',".
+						"'".escape_string($atual["userdesc"])."',".
+						"'".$atual["usertype"]."',".
+						"'".$atual["userenabled"]."',".
+						"'".$atual["usermultilogin"]."',".
+						"'".$atual["userpassword"]."',".
+						"'".$atual["userip"]."',".
+						$atual["userlastlogin"].",".
+						$atual["userlastlogout"].",".
+						"'".$atual["usersession"]."',".
+						"'".$atual["userpermitip"]."',".
+						$atual["updatetime"].",$contest,".$atual["usersitenumber"].",".$atual["usernumber"].")");
+				$ins++;
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando clars
+		$r = DBExec ($t, "select * from clartable where contestnumber=$contest and clarsitenumber=$site");
+		$rr = DBExec ($c, "select * from clartable where contestnumber=$contest and clarsitenumber=$site");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "clars: external(site=$site, reading=$site)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["clarnumber"]==$aqui["clarnumber"] && $la["contestnumber"]==$aqui["contestnumber"] &&
+					$la["clarsitenumber"]==$aqui["clarsitenumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				DBExec($c, "delete from clartable where contestnumber=$contest and clarsitenumber=$site and clarnumber=".
+					$atual["clarnumber"]);
+				$del++;
+			}
+		}
+		$upd=0; $ins=0;
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["claranswer"]=="") $atual["claranswer"]="null";
+			else $atual["claranswer"]="'".escape_string($atual["claranswer"])."'";
+			if ($atual["clarjudge"]=="") $atual["clarjudge"]="null";
+			if ($atual["clarjudgesite"]=="") $atual["clarjudgesite"]="null";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				DBExec ($c, "update clartable set ".
+						"usernumber=".$atual["usernumber"].",".
+						"clardate=".$atual["clardate"].",".
+						"clardatediff=".$atual["clardatediff"].",".
+						"clardatediffans=".$atual["clardatediffans"].",".
+						"clarproblem=".$atual["clarproblem"].",".
+						"clardata='".escape_string($atual["clardata"])."',".
+						"claranswer=".$atual["claranswer"].",".
+						"clarstatus='".escape_string($atual["clarstatus"])."',".
+						"clarjudge=".$atual["clarjudge"].",".
+						"clarjudgesite=".$atual["clarjudgesite"].",".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and clarsitenumber=".$atual["clarsitenumber"].
+					" and clarnumber=".$atual["clarnumber"]." and updatetime<".$atual["updatetime"]);
+				$upd++;
+			} else if($situacao[$j]=="inserir") {
+				DBExec ($c, "insert into clartable (contestnumber, clarsitenumber, clarnumber, usernumber, clardate,".
+					"clardatediff, clardatediffans, clarproblem, clardata, claranswer, clarstatus, clarjudge, clarjudgesite, updatetime) ".
+					"values (".$contest.",".$atual["clarsitenumber"].",".$atual["clarnumber"].",".$atual["usernumber"].",".
+                                                $atual["clardate"].",".
+                                                $atual["clardatediff"].",".
+                                                $atual["clardatediffans"].",".
+                                                $atual["clarproblem"].",".
+                                                "'".escape_string($atual["clardata"])."',".
+                                                $atual["claranswer"].",".
+                                                "'".escape_string($atual["clarstatus"])."',".
+                                                $atual["clarjudge"].",".
+                                                $atual["clarjudgesite"].",".
+                                                $atual["updatetime"].")");
+				$ins++;
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando clars
+		$r = DBExec ($t, "select * from clartable where contestnumber=$contest and clarsitenumber=$localsite");
+		$rr = DBExec ($c, "select * from clartable where contestnumber=$contest and clarsitenumber=$localsite");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "clars: external(site=$site, reading=$localsite)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["clarnumber"]==$aqui["clarnumber"] && $la["contestnumber"]==$aqui["contestnumber"] &&
+					$la["clarsitenumber"]==$aqui["clarsitenumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"])
+						$situacao[$j]="atualizar";
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$upd=0; $ins=0;
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+			if ($atual["claranswer"]=="") $atual["claranswer"]="null";
+			else $atual["claranswer"]="'".escape_string($atual["claranswer"])."'";
+			if ($atual["clarjudge"]=="") $atual["clarjudge"]="null";
+			if ($atual["clarjudgesite"]=="") $atual["clarjudgesite"]="null";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				DBExec ($c, "update clartable set ".
+						"usernumber=".$atual["usernumber"].",".
+						"clardate=".$atual["clardate"].",".
+						"clardatediff=".$atual["clardatediff"].",".
+						"clardatediffans=".$atual["clardatediffans"].",".
+						"clarproblem=".$atual["clarproblem"].",".
+						"clardata='".escape_string($atual["clardata"])."',".
+						"claranswer=".$atual["claranswer"].",".
+						"clarstatus='".escape_string($atual["clarstatus"])."',".
+						"clarjudge=".$atual["clarjudge"].",".
+						"clarjudgesite=".$atual["clarjudgesite"].",".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and clarsitenumber=".$atual["clarsitenumber"].
+					" and clarnumber=".$atual["clarnumber"]." and updatetime<".$atual["updatetime"]);
+				$upd++;
+			} else if($situacao[$j]=="inserir") {
+				$ins++;
+				echo "Clar inserts shouldn't exist (clarnumber=".$atual["clarnumber"].")...\n";
+			}
+		}
+		echo "   updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando runs
+		$r = DBExec ($t, "select * from runtable where contestnumber=$contest and runsitenumber=$site");
+		$rr = DBExec ($c, "select * from runtable where contestnumber=$contest and runsitenumber=$site");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "runs: external(site=$site, reading=$site)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["runnumber"]==$aqui["runnumber"] && $la["contestnumber"]==$aqui["contestnumber"] &&
+					$la["runsitenumber"]==$aqui["runsitenumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"]) {
+						$situacao[$j]="atualizar";
+					}
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$del=0;
+		for ($k=0; $k<$nn; $k++) {
+			$atual = DBRow($rr, $k);
+			if (!$needed[$k]) {
+				$del++;
+				DBExec($c, "delete from runtable where contestnumber=$contest and runsitenumber=$site and runnumber=".
+					$atual["runnumber"]);
+			}
+		}
+		$upd=0; $ins=0;
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+/*
+			$r2 = DBExec ($c,"select * from runtable where contestnumber=$contest and runsitenumber=".$atual["runsitenumber"].
+                                        " and runnumber=".$atual["runnumber"]." for update");
+			if (DBnLines($r2)>0) {
+				$p = DBRow($r2, 0);
+				DB_lo_unlink($c, $p["rundata"]);
+			}
+*/
+			if ($atual["runjudge"]=="") $atual["runjudge"]="null";
+			if ($atual["runjudgesite"]=="") $atual["runjudgesite"]="null";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				$upd++;
+				DBExec ($c, "update runtable set ".
+						"usernumber=".$atual["usernumber"].",".
+						"rundate=".$atual["rundate"].",".
+						"rundatediff=".$atual["rundatediff"].",".
+						"rundatediffans=".$atual["rundatediffans"].",".
+						"runproblem=".$atual["runproblem"].",".
+						"runlangnumber=".$atual["runlangnumber"].",".
+						"runanswer=".$atual["runanswer"].",".
+						"runstatus='".escape_string($atual["runstatus"])."',".
+						"runjudge=".$atual["runjudge"].",".
+						"runjudgesite=".$atual["runjudgesite"].",".
+						"runfilename='".escape_string($atual["runfilename"])."',".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and runsitenumber=".$atual["runsitenumber"].
+					" and runnumber=".$atual["runnumber"]." and updatetime<".$atual["updatetime"]);
+			} else if ($situacao[$j]=="inserir") {
+				$ins++;
+				DBExec($t, "begin work");
+				$in = DB_lo_open($t, $atual["rundata"], "r");
+				if (!$in) $o="0";
+				else {
+					$o = DB_lo_create ($c);
+					$out = DB_lo_open ($c, $o, "w");
+					while (($buf = DB_lo_read ($in, 1000)) != false)
+						DB_lo_write ($out, $buf);
+					DB_lo_close ($out);
+					DB_lo_close ($in);
+
+					$in = DB_lo_open($t, $atual["rundata"], "r");
+					if (!$in) {
+						$o="0";
+				                LOGLevel("Run not saved as file (run=".$atual["runnumber"].",site=".$atual["runsitenumber"].
+							",contest=$contest", 1);
+					} else {
+						$sitess=$atual["runsitenumber"];
+						$nss=$atual["runnumber"];
+						$user=$atual["usernumber"];
+						$problem=$atual["runproblem"];
+						$filename=escape_string($atual["runfilename"]);
+						$ttimet=$atual["rundate"];
+				                $fp = fopen("/tmp/boca/contest${contest}.site${sitess}.run${nss}.user${user}.".
+								"problem${problem}.time${ttimet}.${filename}", "w");
+						if ($fp) {
+							while (($buf = DB_lo_read ($in, 1000)) != false)
+								fwrite ($fp, $buf);
+							fclose ($fp);
+					                $fp = fopen("/tmp/check/contest${contest}.site${sitess}.run${nss}.user${user}.".
+									"problem${problem}.time${ttimet}.${filename}.check", "w");
+							if ($fp) {
+								fwrite($fp, "1");
+								fclose ($fp);
+							}
+							else 
+							LOGLevel("Run not saved as check file (run=".$atual["runnumber"].",site=".$atual["runsitenumber"].
+									",contest=$contest", 1);
+						} else
+					                LOGLevel("Run not saved as file (run=".$atual["runnumber"].",site=".$atual["runsitenumber"].
+								",contest=$contest", 1);
+						DB_lo_close ($out);
+					}
+
+				}
+				DBExec ($c, "insert into runtable (contestnumber, runsitenumber, runnumber, usernumber, rundate,".
+					"rundatediff, rundatediffans, runproblem, runfilename, rundata, runanswer, runstatus, runjudge,".
+					"runjudgesite, runlangnumber, updatetime) ".
+					"values (".$contest.",".$atual["runsitenumber"].",".$atual["runnumber"].",".$atual["usernumber"].",".
+                                                $atual["rundate"].",".
+                                                $atual["rundatediff"].",".
+                                                $atual["rundatediffans"].",".
+                                                $atual["runproblem"].",".
+                                                "'".escape_string($atual["runfilename"])."',$o,".
+                                                $atual["runanswer"].",".
+                                                "'".escape_string($atual["runstatus"])."',".
+                                                $atual["runjudge"].",".
+                                                $atual["runjudgesite"].",".
+                                                $atual["runlangnumber"].",".
+                                                $atual["updatetime"].")");
+				DBExec ($t, "commit work");
+			}
+		}
+		echo "   deletions=$del, updates=$upd, insertions=$ins\n\n";
+
+		// sincronizando runs
+		$r = DBExec ($t, "select * from runtable where contestnumber=$contest and runsitenumber=$localsite");
+		$rr = DBExec ($c, "select * from runtable where contestnumber=$contest and runsitenumber=$localsite");
+		$n = DBnLines ($r);
+		$nn = DBnLines ($rr);
+		echo "runs: external(site=$site, reading=$localsite)=$n, local=$nn\n";
+		for ($k=0; $k<$nn; $k++) $needed[$k]=false;
+		for ($j=0;$j<$n;$j++) {
+			$la = DBRow($r,$j);
+			for ($k=0; $k<$nn; $k++) {
+				$aqui = DBRow($rr,$k);
+				if ($la["runnumber"]==$aqui["runnumber"] && $la["contestnumber"]==$aqui["contestnumber"] &&
+					$la["runsitenumber"]==$aqui["runsitenumber"]) {
+					$needed[$k]=true;
+					if ($la["updatetime"]>$aqui["updatetime"]) {
+						$situacao[$j]="atualizar";
+
+
+						if ($la["runanswer"] != "") {
+							$rrr = DBExec($c, "select * from answertable where answernumber=".$la["runanswer"].
+								" and contestnumber=".$la["contestnumber"]);
+							$ans = (DBnLines($rrr)>0)? DBRow($rrr, 0) : null;
+							if ($ans == null) {
+		                        			echo "Problem with the answer table. Unable to send balloon because the answer was " .
+									"not found (run=".$la["runnumber"].", site=".$la["runsite"].", contest=" .
+									$la["contestnumber"].", answer=".$la["runanswer"].").";
+								$yesla = 'x';
+			        		        } else $yesla = $ans["yes"];
+						} else $yesla='f';
+						if ($aqui["runanswer"] != "") {
+							$rrr = DBExec($c, "select * from answertable where answernumber=".$aqui["runanswer"].
+								" and contestnumber=".$aqui["contestnumber"]);
+							$ans = (DBnLines($rrr)>0)? DBRow($rrr, 0) : null;
+							if ($ans == null) {
+		                        			echo "Problem with the answer table. Unable to send balloon because the answer was " .
+									"not found (run=".$aqui["runnumber"].", site=".$aqui["runsite"].", contest=" .
+									$aqui["contestnumber"].", answer=".$aqui["runanswer"].").";
+								$yesaqui = 'x';
+			        		        } else $yesaqui = $ans["yes"];
+						} else $yesaqui='f';
+
+						if ($yesla == 't' && $yesaqui == 'f') {
+							$rrr = DBExec ($c, "select * from sitetable where contestnumber=".$aqui["contestnumber"].
+								" and sitenumber=$localsite");
+							if (DBnLines($rrr)<=0)
+								echo "Site info not found (contest=${aqui["contestnumber"]}, site=$localsite).";
+							else {
+								$b = DBRow($rrr,0);
+						                $ti = $b["sitestartdate"];
+						                $tempo = time();
+						                $ta = $tempo - $ti;
+						                $tf = $b["sitelastmileanswer"];
+//						                if ($ta < $tf) {
+									$rrr = DBExec ($c, "select * from usertable where contestnumber=".
+										$aqui["contestnumber"]." and usersitenumber=$localsite and usernumber=".
+										$aqui["usernumber"]);
+									if (DBnLines($rrr)<=0)
+										echo "User info not found (contest=${aqui["contestnumber"]}, ".
+											"site=$localsite, user=${aqui["runusernumber"]}).";
+									else {
+							                        $u = DBRow ($rrr,0);
+										$rrr = DBExec ($c, "select * from problemtable where contestnumber=".
+											$aqui["contestnumber"]." and problemnumber=".
+											$aqui["runproblem"]);
+										if (DBnLines($rrr)<=0)
+											echo "Problem info not found (contest=${aqui["contestnumber"]}, ".
+												"problem=${aqui["runproblem"]}).";
+										else {
+							                        	$p = DBRow ($rrr,0);
+							                	        mail("balloon@mainserver", "YES: team=" . $u["username"] . 
+												", problem=" . $p["problemname"],
+				                                				"User ".$u["username"] ." should receive a balloon for ".
+											$p["problemfullname"]."\n");
+										}
+									}
+//								}
+							}
+					        } else if ($yesla == 'f' && $yesaqui == 't') {
+							$rrr = DBExec ($c, "select * from usertable where contestnumber=".
+								$aqui["contestnumber"]." and usersitenumber=$localsite and usernumber=".
+								$aqui["usernumber"]);
+							if (DBnLines($rrr)<=0)
+								echo "User info not found (contest=${aqui["contestnumber"]}, ".
+									"site=$localsite, user=${aqui["runusernumber"]}).";
+							else {
+					                        $u = DBRow ($rrr,0);
+								$rrr = DBExec ($c, "select * from problemtable where contestnumber=".
+									$aqui["contestnumber"]." and problemnumber=".
+									$aqui["runproblem"]);
+								if (DBnLines($rrr)<=0)
+									echo "Problem info not found (contest=${aqui["contestnumber"]}, ".
+										"problem=${aqui["runproblem"]}).";
+								else {
+					                        	$p = DBRow ($rrr,0);
+									mail("balloon@mainserver", "NO: team=" . $u["username"] . 
+										", problem=" . $p["problemname"],
+										"Remove the balloon from user ". $u["username"] .
+										" for ".$p["problemfullname"]."\n");
+								}
+							}
+						}
+
+
+					}
+					else
+						$situacao[$j]="ok";
+					break;
+				}
+			}
+			if ($k>=$nn) $situacao[$j]="inserir";
+		}
+		$upd=0; $ins=0;
+		for ($j=0;$j<$n;$j++) {
+			$atual = DBRow($r,$j);
+
+			if ($atual["runjudge"]=="") $atual["runjudge"]="null";
+			if ($atual["runjudgesite"]=="") $atual["runjudgesite"]="null";
+			if ($atual["updatetime"]=="") $atual["updatetime"]=time();
+			if ($situacao[$j]=="atualizar") {
+				$upd++;
+				DBExec ($c, "update runtable set ".
+						"usernumber=".$atual["usernumber"].",".
+						"rundate=".$atual["rundate"].",".
+						"rundatediff=".$atual["rundatediff"].",".
+						"rundatediffans=".$atual["rundatediffans"].",".
+						"runproblem=".$atual["runproblem"].",".
+						"runlangnumber=".$atual["runlangnumber"].",".
+						"runanswer=".$atual["runanswer"].",".
+						"runstatus='".escape_string($atual["runstatus"])."',".
+						"runjudge=".$atual["runjudge"].",".
+						"runjudgesite=".$atual["runjudgesite"].",".
+						"runfilename='".escape_string($atual["runfilename"])."',".
+						"updatetime=".$atual["updatetime"].
+					" where contestnumber=$contest and runsitenumber=".$atual["runsitenumber"].
+					" and runnumber=".$atual["runnumber"]." and updatetime<".$atual["updatetime"]);
+			} else if ($situacao[$j]=="inserir") {
+				$ins++;
+				echo "Run Inserts shouldn't exist (run=".$atual["runnumber"].")...";
+			}
+		}
+		echo "   updates=$upd, insertions=$ins\n\n";
+
+		DBExec($c, "commit work");
+		DBClose($t);
+	}
+	DBClose($c);
+}
+
+//fecha a conexao com o banco (isso nao eh realmente necessario, ja que o php/apache cuidam do servico)
+function DBClose($c) {
+	if ($c) pg_close($c);
+}
+//executar instrucao no banco de dados, parando em caso de erro quando $stop=1
+function DBExec($conn,$sql) {
+//	echo $sql . "\n";
+	$result = pg_exec ($conn, $sql);
+	if (!$result) {
+		echo "Unable to exec SQL in the database. SQL=(" . $sql . ")," .
+                         " Error=(" . pg_errormessage($conn) . ")\n";
+		exit;
+	}
+	return $result;
+}
+//devolve o numero de linhas da consulta
+function DBnlines ($result) {
+	return pg_numrows ($result);
+}
+//pega uma linha da consulta no formato de array
+function DBRow ($r, $i) {
+	return pg_fetch_array ($r, $i);
+}
+function escape_string($s) {
+	return str_replace("'", "''", $s);
+}
+if (getIP()!="UNKNOWN") exit;
+
+$x = DBConnect();
+if ($x==null) exit;
+$y = DBExec($x, "select * from contesttable where contestactive='t'");
+if (DBnLines($y)==0) {
+  echo "Unable to find the active contest in the database.\n";
+  exit;
+}
+$ct = DBRow($y,0);
+DBClose($x);
+GetExternalData($ct["contestnumber"]);
+
+?>