init

1 files changed, 529 insertions, 0 deletions

diff --git a/boca-1.5.0/src/private/autojudging.php b/boca-1.5.0/src/private/autojudging.php
new file mode 100755
index 0000000..3685254
--- /dev/null
+++ b/boca-1.5.0/src/private/autojudging.php
@@ -0,0 +1,529 @@
+<?php
+////////////////////////////////////////////////////////////////////////////////
+//BOCA Online Contest Administrator
+//    Copyright (C) 2003-2012 by BOCA Development Team (bocasystem@gmail.com)
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//    You should have received a copy of the GNU General Public License
+//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+////////////////////////////////////////////////////////////////////////////////
+// Last modified 05/aug/2012 by cassio@ime.usp.br
+$ds = DIRECTORY_SEPARATOR;
+if($ds=="") $ds = "/";
+if(is_readable(getcwd() . $ds . '..' .$ds . 'db.php')) {
+	require_once(getcwd() . $ds . '..' .$ds . 'db.php');
+	require_once(getcwd() . $ds . '..' .$ds . 'version.php');
+} else {
+  if(is_readable(getcwd() . $ds . 'db.php')) {
+	require_once(getcwd() . $ds . 'db.php');
+	require_once(getcwd() . $ds . 'version.php');
+  } else {
+	  echo "unable to find db.php";
+	  exit;
+  }
+}
+if (getIP()!="UNKNOWN" || php_sapi_name()!=="cli") exit;
+if(system('test "`id -u`" -eq "0"',$retval)===false || $retval!=0) {
+	echo "Must be run as root\n";
+	exit;
+}
+
+ini_set('memory_limit','600M');
+ini_set('output_buffering','off');
+ini_set('implicit_flush','on');
+@ob_end_flush();
+echo "max memory set to " . ini_get('memory_limit'). "\n";
+
+$tmpdir = getenv("TMP");
+if($tmpdir=="") $tmpdir = getenv("TMPDIR");
+if($tmpdir[0] != '/') $tmdir = "/tmp";
+if($tmpdir=="") $tmpdir = "/tmp";
+
+$basdir=$ds;
+if(file_exists($ds . 'bocajail' . $tmpdir)) {
+  $tmpdir=$ds . 'bocajail' . $tmpdir;
+  $basdir=$ds . 'bocajail' . $ds;
+  echo "bocajail environment seems to exist - trying to use it\n";
+} else {
+  echo "bocajail not found - trying to proceed without using it\n";
+}
+
+if($ds=='/') {
+	system("find $basdir -user bocajail -delete >/dev/null 2>/dev/null");
+	system("find $basdir -user nobody -delete >/dev/null 2>/dev/null");
+	system("find $basdir -group users -exec chgrp root '{}' \\; 2>/dev/null");
+	system("find $basdir -perm /1002 -type d > /tmp/boca.writabledirs.tmp 2>/dev/null");
+	system('chmod 400 /tmp/boca.writabledirs.tmp 2>/dev/null');
+}
+umask(0022);
+
+$cache = $tmpdir . $ds . "bocacache.d";
+cleardir($cache);
+@mkdir($cache);
+$key=md5(mt_rand() . rand() . mt_rand());
+
+$cf = globalconf();
+$ip = $cf["ip"];
+$activecontest=DBGetActiveContest();
+$prevsleep=0;
+while(42) {
+if(($run = DBGetRunToAutojudging($activecontest["contestnumber"], $ip)) === false) {
+  if($prevsleep==0)
+    echo "Nothing to do. Sleeping...";
+  else
+    echo ".";
+  flush();
+  sleep(10);
+  $prevsleep=1;
+  continue;
+}
+echo "\n";
+flush();
+$prevsleep=0;
+
+$number=$run["number"];
+$site=$run["site"];
+$contest=$run["contest"];
+
+echo "Removing possible files from previous runs\n";
+$dirs=file('/tmp/boca.writabledirs.tmp');
+for($dir=0;$dir<count($dirs);$dir++) {
+	$dirn=trim($dirs[$dir]) . $ds;
+	if($dirn[0] != '/') continue;
+	system("find \"$dirn\" -user bocajail -delete >/dev/null 2>/dev/null");
+	system("find \"$dirn\" -user nobody -delete >/dev/null 2>/dev/null");
+}
+
+echo "Entering directory $tmpdir (contest=$contest, site=$site, run=$number)\n";
+chdir($tmpdir);
+for($i=0; $i<5; $i++) {
+	  $name = tempnam($tmpdir, "boca");
+	  $dir = $name . ".d";
+	  if(@mkdir($dir, 0755)) break;
+	  @unlink($name);
+	  @rmdir($dir);
+}
+if($i>=5) {
+	  echo "It was not possible to create a unique temporary directory\n";
+  	  LogLevel("Autojuging: Unable to create temp directory (run=$number, site=$site, contest=$contest)",1);
+	  DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem creating temp directory");
+	  continue;
+}
+chdir($dir);
+
+echo "Using directory $dir (contest=$contest, site=$site, run=$number)\n";
+
+/*
+if($run["scriptoid"]=="" || $run["scriptname"]=="") {
+	LogLevel("Autojuging: Script file not defined (run=$number, site=$site, contest=$contest)",1);
+        echo "Compiling/running script file not defined (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: compiling/running script not defined");
+	continue;
+}
+if($run["compscriptoid"]=="" || $run["compscriptname"]=="") {
+	LogLevel("Autojuging: Comparing script file not defined (run=$number, site=$site, contest=$contest)",1);
+        echo "Comparing script file not defined (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: comparing script not defined");
+	continue;
+}
+*/
+if($run["sourceoid"]=="" || $run["sourcename"]=="") {
+	LogLevel("Autojuging: Source file not defined (run=$number, site=$site, contest=$contest)",1);
+        echo "Source file not defined (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: source file not defined");
+	continue;
+}
+if($run["inputoid"]=="" || $run["inputname"]=="") {
+	LogLevel("Autojuging: problem package not defined (run=$number, site=$site, contest=$contest)",1);
+        echo "Package file not defined (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file not defined");
+	continue;
+}
+/*
+if($run["soloid"]=="" || $run["solname"]=="") {
+	LogLevel("Autojuging: sol file not defined (run=$number, site=$site, contest=$contest)",1);
+        echo "solfile not defined (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: correct output file not defined");
+	continue;
+}
+*/
+$c = DBConnect();
+DBExec($c, "begin work", "Autojudging(exporttransaction)");
+/*
+if(DB_lo_export($c, $run["scriptoid"], $dir . $ds . $run["scriptname"]) === false) {
+        DBExec($c, "rollback work", "Autojudging(rollback-script)");
+	LogLevel("Autojuging: Unable to export script file (run=$number, site=$site, contest=$contest)",1);
+        echo "Error exporting compiling/running script file ${run["scriptname"]} (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+        DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: unable to export compiling/running script");
+	continue;
+}
+*/
+if(DB_lo_export($c, $run["sourceoid"], $dir . $ds . $run["sourcename"]) === false) {
+        DBExec($c, "rollback work", "Autojudging(rollback-source)");
+	LogLevel("Autojudging: Unable to export source file (run=$number, site=$site, contest=$contest)",1);
+        echo "Error exporting source file ${run["sourcename"]} (contest=$contest, site=$site, run=$number)\n";
+	cleardir($dir);
+	unlink($name);
+	DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: unable to export source file");
+	DBExec($c, "commit", "Autojudging(exportcommit)");
+	continue;
+}
+if(is_readable($cache . $ds . $run["inputoid"] . "." . $run["inputname"])) {
+	DBExec($c, "commit", "Autojudging(exportcommit)");
+	echo "Getting problem package file from local cache\n";
+	$s = file_get_contents($cache .	$ds . $run["inputoid"]	. "." . $run["inputname"]);
+	file_put_contents($dir . $ds . $run["inputname"], decryptData($s,$key));
+} else {
+	echo "Downloading problem package file from db\n";
+	if(DB_lo_export($c, $run["inputoid"], $dir . $ds . $run["inputname"]) === false) {
+        DBExec($c, "rollback work", "Autojudging(rollback-input)");
+		LogLevel("Autojudging: Unable to export problem package file (run=$number, site=$site, contest=$contest)",1);
+        echo "Error exporting problem package file ${run["inputname"]} (contest=$contest, site=$site, run=$number)\n";
+		cleardir($dir);
+		unlink($name);
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: unable to export problem package file");
+		DBExec($c, "commit", "Autojudging(exportcommit)");
+		continue;
+	}
+	DBExec($c, "commit", "Autojudging(exportcommit)");
+
+	echo "Problem package downloaded -- running init scripts to obtain limits and other information\n";
+	$zip = new ZipArchive;
+	if ($zip->open($dir . $ds . $run["inputname"]) === true) {
+		$zip->extractTo($dir . $ds . "problemdata");
+		$zip->close();
+	} else {
+		echo 'Failed to unzip the file -- please check the problem package\n';
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+		continue;
+	}
+	if(($info=file($dir . $ds . "problemdata" . $ds . "description" . $ds . 'problem.info'))===false) {
+		echo 'Problem content missing (description/problem.info) -- please check the problem package\n';
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+		continue;
+	}
+	$basename='';
+	foreach($info as $line) {
+		$a=explode('=',$line);
+		if(trim($a[0])=='basename') {
+			$basename=trim($a[1]);
+			break;
+		}
+	}
+	if($basename=='') {
+		echo 'Problem content missing (description/problem.info) -- please check the problem package\n';
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+		continue;
+	}
+	if(!is_dir($dir . $ds . "problemdata" . $ds . "limits")) {
+		echo 'Problem content missing (limits) -- please check the problem package\n';
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+		continue;
+	}
+	chdir($dir . $ds . "problemdata" . $ds . "limits");
+	foreach(glob($dir . $ds . "problemdata" . $ds . "limits" .$ds . '*') as $file) {
+		chmod($file,0700);
+		$ex = escapeshellcmd($file);
+		$ex .= " >stdout 2>stderr";
+		echo "Executing INIT SCRIPT " . $ex . "\n";
+		if(system($ex, $retval)===false) $retval=-1;
+		if($retval != 0) {
+			echo 'Error running script -- please check the problem package\n';
+			DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+			continue;
+		}
+		$limits[$basename] = file('stdout');
+	}
+
+	foreach(glob($dir . $ds . "problemdata" . $ds . "tests" .$ds . '*') as $file) {
+		chdir($dir . $ds . "problemdata" . $ds . "tests");
+		chmod($file,0700);
+		$ex = escapeshellcmd($file);
+		$ex .= " >stdout 2>stderr";
+		echo "Executing TEST SCRIPT " . $ex . "\n";
+		if(system($ex, $retval)===false) $retval=-1;
+		if($retval != 0) {
+			echo 'Error running test script -- please check the problem package\n';
+			DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: internal test script failed");
+			continue;
+		}
+	}
+	cleardir($dir . $ds . "problemdata");
+	$s = file_get_contents($dir . $ds . $run["inputname"]);
+	file_put_contents($cache . $ds . $run["inputoid"] . "." . $run["inputname"], encryptData($s,$key));
+}
+
+function exitmsg($retval) {
+/* FROM SAFEEXEC
+# 0 ok
+# 1 compile error
+# 2 runtime error
+# 3 timelimit exceeded
+# 4 internal error
+# 5 parameter error
+# 6 internal error
+# 7 memory limit exceeded
+# 8 security threat
+# 9 runtime error
+*/
+/*
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 0, 'Not answered yet', 'f', 't')", "DBNewContest(insert fake answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 1, 'YES', 't', 'f')", "DBNewContest(insert YES answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 2, 'NO - Compilation error', 'f', 'f')", "DBNewContest(insert CE answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 3, 'NO - Runtime error', 'f', 'f')", "DBNewContest(insert RE answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 4, 'NO - Time limit exceeded', 'f', 'f')", "DBNewContest(insert TLE answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 5, 'NO - Presentation error', 'f', 'f')", "DBNewContest(insert PE answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 6, 'NO - Wrong answer', 'f', 'f')", "DBNewContest(insert WA answer)");
+	DBExec($c, "insert into answertable (contestnumber, answernumber, runanswer, yes, fake) values ".
+			"($n, 7, 'NO - Contact staff', 'f', 'f')", "DBNewContest(insert CS answer)");
+*/
+	if($retval==-1) {
+		$answer="Internal error while executing run command";
+		$retval = 7; // contact staff
+	}
+	else if($retval==1) {
+		$answer="Compilation error";
+		$retval = 2; // compilation error
+	}
+	else if($retval==2) {
+		$answer="Runtime error";
+		$retval = 3; // runtime error
+	}
+	else if($retval==3) {
+		$answer="Time limit exceeded";
+		$retval = 4; // timelimit exceeded
+	}
+	else if($retval==4) {
+		$answer="safeexec internal error (4)";
+		$retval = 7; // contact staff
+	}
+	else if($retval==5) {
+		$answer="safeexec error: parameter problem";
+		$retval = 7; // contact staff
+	}
+	else if($retval==6) {
+		$answer="safeexec internal error (6)";
+		$retval = 7; // contact staff
+	}
+	else if($retval==7) {
+		$answer="Runtime error (memory-limit)";
+		$retval = 3; // runtime error
+	}
+	else if($retval==8) {
+		$answer="Code generates security threat";
+		$retval = 3; // runtime error
+	}
+	else if($retval==9) {
+		$answer="Runtime error";
+		$retval = 3; // runtime error
+	}
+	return array($retval,$answer);
+}
+
+// COMPILATION
+//# parameters are:
+//# $1 source_file
+//# $2 exe_file (default ../run.exe)
+//# $3 timelimit (optional, limit to run all the repetitions, by default only one repetition)
+//# $4 maximum allowed memory (in MBytes)
+
+$zip = new ZipArchive;
+if ($zip->open($dir . $ds . $run["inputname"]) === true) {
+	$zip->extractTo($dir, "compile" . $ds . $run["extension"]);
+	$zip->close();
+} else {
+	echo 'Failed to unzip the file -- please check the problem package\n';
+	DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+	continue;
+}
+
+$script = $dir . $ds . 'compile' . $ds . $run["extension"];
+if(!is_file($script)) {
+	echo 'Error (not found) compile script for '.$run["extension"].' -- please check the problem package\n';
+	DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: compile script failed (".$run["extension"].")");
+	continue;
+}
+
+chmod($script, 0700);
+$ex = escapeshellcmd($script) ." ".
+	escapeshellarg($run["sourcename"])." ".
+	"run.exe ".
+	escapeshellarg(trim($limits[$run["extension"]][0]))." ".
+	escapeshellarg(trim($limits[$run["extension"]][2]));
+$ex .= " >stdout 2>stderr";
+echo "Executing " . $ex . "\n";
+if(system($ex, $retval)===false) $retval=-1;
+
+if($retval != 0) {
+	list($retval,$answer) = exitmsg($retval);
+	$answer = "(WHILE COMPILING) " . $answer;
+} else {
+//# parameters are:
+//# $1 exe_file
+//# $2 input_file
+//# $3 timelimit (limit to run all the repetitions, by default only one repetition)
+//# $4 number_of_repetitions_to_run (optional, can be used for better tuning the timelimit)
+//# $5 maximum allowed memory (in KBytes)
+
+	$zip = new ZipArchive;
+	if ($zip->open($dir . $ds . $run["inputname"]) === true) {
+		$zip->extractTo($dir, array("run" . $ds . $run["extension"],"input" . $ds . '*'));
+		$zip->close();
+	} else {
+		echo 'Failed to unzip the file (inputs) -- please check the problem package\n';
+		DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+		continue;
+	}
+	chdir($dir);
+	@unlink('allout');
+	@unlink('allerr');
+	$retval = 0;
+	$script = $dir . $ds . 'run' . $ds . $run["extension"];
+	chmod($script, 0700);
+	mkdir('team', 0755);
+	$d = opendir($dir . $ds . "input");
+	while (($file = readdir($d)) !== false) {
+		if(is_file($dir . $ds . "input" . $ds . $file)) {
+			$ex = escapeshellcmd($script) ." ".
+				"run.exe ".
+				escapeshellarg($dir . $ds . "input" . $ds . $file)." ".
+				escapeshellarg(trim($limit[0]))." ".
+				escapeshellarg(trim($limit[1]))." ".
+				escapeshellarg(trim($limit[2]));
+			$ex .= " >stdout 2>stderr";
+			echo "Executing " . $ex . " for input " . $file . "\n";
+			if(system($ex, $retval)===false) $retval=-1;
+			foreach (glob($dir . $ds . '*') as $fne) {
+				@chown($fne,"nobody");
+				@chmod($fne,0755);
+			}
+			if(is_readable('stderr0'))
+				system('cat stderr0 >> stderr');
+			system('echo ##### STDERR FOR FILE ' . escapeshellarg($file) . ' >> allerr');
+			system('cat stderr >> allerr');
+			system('cat stdout > team' . $ds . escapeshellarg($file));
+			system('echo ##### STDOUT FOR FILE ' . escapeshellarg($file) . ' >> allout');
+			system('cat stdout >> allout');
+			if($retval != 0) {
+				list($retval,$answer) = exitmsg($retval);
+				$answer = "(WHILE RUNNING) " . $answer;
+				break;
+			}
+		}
+	}
+	if($retval==0) {
+		echo "Processing results\n";
+		$zip = new ZipArchive;
+		if ($zip->open($dir . $ds . $run["inputname"]) === true) {
+			$zip->extractTo($dir, array("compare" . $ds . $run["extension"],"output" . $ds . '*'));
+			$zip->close();
+		} else {
+			echo 'Failed to unzip the file (outputs) -- please check the problem package\n';
+			DBGiveUpRunAutojudging($contest, $site, $number, $ip, "Autojuging error: problem package file is invalid");
+			continue;
+		}
+		$script = $dir . $ds . 'compare' . $ds . $run["extension"];
+		$retval = 0;
+		chmod($script, 0700);
+		$d = opendir($dir . $ds . "output");
+		while (($file = readdir($d)) !== false) {
+			if(is_file($dir . $ds . "output" . $ds . $file)) {
+				$ex = escapeshellcmd($script) ." ".
+					escapeshellarg("team" . $ds . $file)." ".
+					escapeshellarg("output" . $ds . $file)." ".
+					escapeshellarg("input" . $ds . $file) . " >compout";
+				echo "Executing " . $ex . "\n";
+				$answer = system($ex, $localretval);
+
+				$fp = fopen($dir . $ds . "allerr", "a+");
+				fwrite($fp, "\n\n===OUTPUT OF COMPARING SCRIPT FOLLOWS FOR FILE " .$file ." (EMPTY MEANS NO DIFF)===\n");
+				$dif = file($dir . $ds . "compout");
+				$difi = 0;
+				for(; $difi < count($dif)-1 && $difi < 5000; $difi++)
+					fwrite($fp, $dif[$difi]);
+				if($difi >= 5000) fwrite($fp, "===OUTPUT OF COMPARING SCRIPT TOO LONG - TRUNCATED===\n");
+				else fwrite($fp, "===OUTPUT OF COMPARING SCRIPT ENDS HERE===\n");
+				$answer = trim($dif[count($dif)-1]);
+				fclose($fp);
+				foreach (glob($dir . $ds . '*') as $fne) {
+					@chown($fne,"nobody");
+					@chmod($fne,0755);
+				}
+				// retval 5 (presentation) and retval 6 (wronganswer) are already compatible with the compare script
+				if($localretval < 4 || $localretval > 6) {
+					// contact staff
+					$retval = 7;
+					$answer='Contact staff';
+				}
+				else if($retval==0) {
+					if($localretval==4) {
+						// YES!
+						$answer='YES';
+						$retval = 1;
+					} else $retval=$localretval;
+				}
+				else if($retval==1) {
+					if($localretval!=4) {
+						$retval=$localretval;
+						$answer='Presentation error';
+					}
+				}
+			}
+		}
+	}
+}
+if($retval > 9) {
+	$ans = file("allout");
+	$anstmp = trim(escape_string($ans[count($ans)-1]));
+	unset($ans);
+	LogLevel("Autojudging: Script returned unusual code: $retval ($anstmp)".
+			 "(run=$number, site=$site, contest=$contest)",1);
+	echo "Autojudging script returned unusual code $retval ($anstmp)".
+		"(contest=$contest, site=$site, run=$number)\n";
+//  cleardir($dir);
+//  unlink($name);
+//  DBGiveUpRunAutojudging($contest, $site, $number, $ip, "(unusual code: $retval) " . $anstmp);
+//  continue;
+	$answer = "(check output files - unusual code: $retval) " . $anstmp;
+	
+	// contact staff
+	$retval = 7;
+}
+
+echo "Sending results to server\n";
+DBUpdateRunAutojudging($contest, $site, $number, $ip, $answer, $dir.$ds.'allout', $dir.$ds.'allerr', $retval);
+LogLevel("Autojudging: answered '$answer' (run=$number, site=$site, contest=$contest)",3);
+echo "Autojudging answered '$answer' (contest=$contest, site=$site, run=$number)\n";
+if(!isset($dodebug)) {
+	cleardir($dir);
+	unlink($name);
+}
+}
+?>