/**
* Java-Specific Compilation
*
* @param string $mTempFolder
* @param string $vFilePrefix
* @param string $mSource
* @return string
* @author Ben Evans
*/
private static function java_compile_and_return($mTempFolder, $vFilePrefix, $mSource)
{
Model_Shell_Debug::getInstance()->log("Entering Java Compilation");
Model_Shell_Debug::getInstance()->log("Temporary Folder Given: {$mTempFolder} . File Prefix: {$vFilePrefix}");
Model_Shell_Debug::getInstance()->log("Source passed was:\n{$mSource}");
if (in_array(strtolower(PHP_OS), explode(",", self::NIX_OSES))) {
// Clean up any old existing files
if (file_exists(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"))) {
Model_Shell_Debug::getInstance()->log("Existing file exists. Removing");
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"));
}
if (file_exists(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix))) {
Model_Shell_Debug::getInstance()->log("Existing folder exists. Removing");
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix));
}
$mTempFolder = self::os_slash($mTempFolder);
// Output the program that's been generated into a File.
$fh = fopen(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"), 'w');
fwrite($fh, $mSource);
fclose($fh);
if (!is_writable($mTempFolder)) {
throw new Exception("Cannot write to {$mTempFolder} Please ensure permissions are correctly set");
}
// Java sometimes generates more than one class... so we put the compiled things in a directory
mkdir($mTempFolder . "/" . $vFilePrefix);
// Run the program that we outputted to a file into a fully functioning Executable
$toExec = "javac \"" . $mTempFolder . "/" . $vFilePrefix . ".java\" -d \"" . $mTempFolder . "/" . $vFilePrefix . "\"";
Model_Shell_Debug::getInstance()->log("Attempted to execute: {$toExec}");
$execResult = exec($toExec);
Model_Shell_Debug::getInstance()->log("Execution result was: " . $execResult);
// OK Now we need to see what classes have been generated in this directory, and then call that when executing
$directory_contents = scandir($mTempFolder . "/" . $vFilePrefix);
if (sizeof($directory_contents) < 3) {
throw new Exception("When Trying to generate a new randomised question, Compilation Failed. Reason: " . $execResult);
}
// At this point, I'm assuming we have only 1 main class
$program_to_run = null;
foreach ($directory_contents as $dc) {
if (strlen($dc) > 5) {
$program_to_run = str_replace(".class", "", $dc);
}
}
if (!is_null($program_to_run)) {
// Most linuxes and Unixes come with the GNU timeout program. However, OSX doesn't
if (in_array(strtolower(PHP_OS), array('darwin'))) {
$toExec = realpath(APPLICATION_PATH . "/../resources/osx_timeout.sh") . " 5 java -cp \"" . $mTempFolder . "/" . $vFilePrefix . "\" " . $program_to_run . " > \"" . $mTempFolder . "/" . $vFilePrefix . ".txt\"";
} else {
$toExec = "timeout 5 java -cp \"" . $mTempFolder . "/" . $vFilePrefix . "\" " . $program_to_run . " > \"" . $mTempFolder . "/" . $vFilePrefix . ".txt\"";
}
$execution_result = exec($toExec);
Model_Shell_Debug::getInstance()->log("Java program compiled. Now executing: " . $toExec);
// Model_Shell_Debug::getInstance()->log("The shell Execution result (not expecting anything) was: " . $execution_result);
$vContents = file_get_contents(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".txt"));
Model_Shell_Debug::getInstance()->log("File Execution result was: " . trim($vContents));
//Delete all the stuff we made
unlink("{$mTempFolder}/" . $vFilePrefix . ".java");
unlink("{$mTempFolder}/" . $vFilePrefix . ".txt");
Model_Utils_Filesystem::delete_directory($mTempFolder . "/" . $vFilePrefix);
return $vContents;
} else {
return "Compilation failed! Reason:" . $execResult;
}
} else {
//We're running Windows (probably)
// We have to make sure that the user has defined the JAVA Path (unlike Linux where it's just in the PATH)
if (!defined("JAVAC_PATH")) {
throw new Exception("The Windows Javac.exe Path is not defined. Please define it in general.php");
} else {
if (!file_exists(JAVAC_PATH)) {
throw new Exception("The JavaC Path defined (Windows) is not accessible by this application");
}
}
// Remove all old stuff
if (file_exists("{$mTempFolder}/" . $vFilePrefix . ".java")) {
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"));
}
if (file_exists("{$mTempFolder}/" . $vFilePrefix . ".exe")) {
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".exe"));
}
$fh = fopen(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"), 'w');
fwrite($fh, $mSource);
fclose($fh);
// Java sometimes generates more than one class... so we put the compiled things in a directory
mkdir($mTempFolder . "\\" . $vFilePrefix);
$toExec = "\"" . JAVAC_PATH . "\" \"" . $mTempFolder . "\\" . $vFilePrefix . ".java\" -d \"" . $mTempFolder . "\\" . $vFilePrefix . "\"";
$execResult = exec($toExec);
// OK Now we need to see what classes have been generated in this directory, and then call that when executing
$directory_contents = scandir($mTempFolder . "\\" . $vFilePrefix);
if (sizeof($directory_contents) < 3) {
throw new Exception("When Trying to generate a new randomised question, Compilation Failed. Reason: " . $execResult);
}
// At this point, I'm assuming we have only 1 main class
$program_to_run = null;
foreach ($directory_contents as $dc) {
if (strlen($dc) > 5) {
$program_to_run = str_replace(".class", "", $dc);
}
}
if (!is_null($program_to_run)) {
$toExec = "java -cp \"" . $mTempFolder . "\\" . $vFilePrefix . "\" " . $program_to_run . " > \"" . $mTempFolder . "\\" . $vFilePrefix . ".txt\"";
$fh = fopen("{$mTempFolder}/" . $vFilePrefix . ".bat", 'w');
fwrite($fh, $toExec);
fclose($fh);
$toExec = '"' . $mTempFolder . "\\limitexec.exe\" 5 " . $vFilePrefix;
//echo "EXECUTING: " . $toExec;
exec($toExec);
$vContents = file_get_contents(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".txt"));
//Delete all the stuff we made
unlink("{$mTempFolder}/" . $vFilePrefix . ".bat");
unlink("{$mTempFolder}/" . $vFilePrefix . ".java");
unlink("{$mTempFolder}/" . $vFilePrefix . ".txt");
exec("rmdir \"" . $mTempFolder . "\\" . $vFilePrefix . "\" /S /Q");
return $vContents;
} else {
return "Compilation failed! Reason:" . $execResult;
}
}
//End Windows-specific code
}
protected static function java_linux($mTempFolder, $vFilePrefix, $mSource)
{
// Clean up any old existing files
if (file_exists(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"))) {
Model_Shell_Debug::getInstance()->log("Existing file exists. Removing");
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"));
}
if (file_exists(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix))) {
Model_Shell_Debug::getInstance()->log("Existing folder exists. Removing");
unlink(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix));
}
$mTempFolder = self::os_slash($mTempFolder);
// Output the program that's been generated into a File.
$fh = fopen(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".java"), 'w');
fwrite($fh, $mSource);
fclose($fh);
if (!is_writable($mTempFolder)) {
throw new Exception("Cannot write to {$mTempFolder} Please ensure permissions are correctly set");
}
// Java sometimes generates more than one class... so we put the compiled things in a directory
mkdir($mTempFolder . "/" . $vFilePrefix);
$error_file = $mTempFolder . '/' . $vFilePrefix . '.error.txt';
// Capture error messages here - Ivan
// Run the program that we outputted to a file into a fully functioning Executable
$toExec = "javac \"" . $mTempFolder . "/" . $vFilePrefix . ".java\" -d \"" . $mTempFolder . "/" . $vFilePrefix . "\"" . ' 2> "' . $error_file . '"';
Model_Shell_Debug::getInstance()->log("Attempted to execute: {$toExec}");
$execResult = exec($toExec);
Model_Shell_Debug::getInstance()->log("Execution result was: " . $execResult);
self::proccessErrorFile($error_file);
// Ivan
// OK Now we need to see what classes have been generated in this directory, and then call that when executing
$directory_contents = scandir($mTempFolder . "/" . $vFilePrefix);
if (sizeof($directory_contents) < 3) {
throw new Exception("When Trying to generate a new randomised question, Compilation Failed. Reason: " . $execResult);
}
// At this point, I'm assuming we have only 1 main class
$program_to_run = null;
foreach ($directory_contents as $dc) {
if (strlen($dc) > 5) {
$program_to_run = str_replace(".class", "", $dc);
}
}
if (!is_null($program_to_run)) {
// Most linuxes and Unixes come with the GNU timeout program. However, OSX doesn't
if (in_array(strtolower(PHP_OS), array('darwin'))) {
$toExec = realpath(APPLICATION_PATH . "/../resources/osx_timeout.sh") . " 5 java -cp \"" . $mTempFolder . "/" . $vFilePrefix . "\" " . $program_to_run . " > \"" . $mTempFolder . "/" . $vFilePrefix . ".txt\"";
} else {
// For now we will only support our target platform (Ubuntu) - Ivan
$toExec = "timeout 5 java -cp \"" . $mTempFolder . "/" . $vFilePrefix . "\" " . $program_to_run . " > \"" . $mTempFolder . "/" . $vFilePrefix . ".txt\"";
}
$execution_result = exec($toExec);
Model_Shell_Debug::getInstance()->log("Java program compiled. Now executing: " . $toExec);
// Model_Shell_Debug::getInstance()->log("The shell Execution result (not expecting anything) was: " . $execution_result);
$vContents = file_get_contents(Model_Shell_Compiler::os_slash("{$mTempFolder}/" . $vFilePrefix . ".txt"));
Model_Shell_Debug::getInstance()->log("File Execution result was: " . trim($vContents));
// Delete all the stuff we made
unlink("{$mTempFolder}/" . $vFilePrefix . ".java");
unlink("{$mTempFolder}/" . $vFilePrefix . ".txt");
Model_Utils_Filesystem::delete_directory($mTempFolder . "/" . $vFilePrefix);
return $vContents;
} else {
return "Compilation failed! Reason:" . $execResult;
}
}
