diff options
Diffstat (limited to 'testapp/exam')
| -rwxr-xr-x | testapp/exam/code_server.py | 865 | ||||
| -rw-r--r-- | testapp/exam/output/README.txt | 4 | ||||
| -rw-r--r-- | testapp/exam/views.py | 2 |
3 files changed, 870 insertions, 1 deletions
diff --git a/testapp/exam/code_server.py b/testapp/exam/code_server.py new file mode 100755 index 0000000..792197d --- /dev/null +++ b/testapp/exam/code_server.py @@ -0,0 +1,865 @@ +#!/usr/bin/env python +"""This server runs an XMLRPC server that can be submitted code and tests +and returns the output. It *should* be run as root and will run as the user +'nobody' so as to minimize any damange by errant code. This can be configured +by editing settings.py to run as many servers as desired. One can also +specify the ports on the command line. Here are examples:: + + $ sudo ./code_server.py + # Runs servers based on settings.py:SERVER_PORTS one server per port given. + +or:: + + $ sudo ./code_server.py 8001 8002 8003 8004 8005 + # Runs 5 servers on ports specified. + +All these servers should be running as nobody. This will also start a server +pool that defaults to port 50000 and is configurable in +settings.py:SERVER_POOL_PORT. This port exposes a `get_server_port` function +that returns an available server. +""" +import sys +import traceback +from SimpleXMLRPCServer import SimpleXMLRPCServer +import pwd +import os +import stat +from os.path import isdir, dirname, abspath, join, isfile +import signal +from multiprocessing import Process, Queue +import subprocess +import re +# Local imports. +from settings import SERVER_PORTS, SERVER_TIMEOUT, SERVER_POOL_PORT + +MY_DIR = abspath(dirname(__file__)) + + +def run_as_nobody(): + """Runs the current process as nobody.""" + # Set the effective uid and to that of nobody. + nobody = pwd.getpwnam('nobody') + os.setegid(nobody.pw_gid) + os.seteuid(nobody.pw_uid) + + +# Raised when the code times-out. +# c.f. http://pguides.net/python/timeout-a-function +class TimeoutException(Exception): + pass + + +def timeout_handler(signum, frame): + """A handler for the ALARM signal.""" + raise TimeoutException('Code took too long to run.') + + +############################################################################### +# `CodeServer` class. +############################################################################### +class CodeServer(object): + """A code server that executes user submitted test code, tests it and + reports if the code was correct or not. + """ + def __init__(self, port, queue): + self.port = port + self.queue = queue + msg = 'Code took more than %s seconds to run. You probably '\ + 'have an infinite loop in your code.' % SERVER_TIMEOUT + self.timeout_msg = msg + + def run_python_code(self, answer, test_code, in_dir=None): + """Tests given Python function (`answer`) with the `test_code` + supplied. If the optional `in_dir` keyword argument is supplied + it changes the directory to that directory (it does not change + it back to the original when done). This function also timesout + when the function takes more than SERVER_TIMEOUT seconds to run + to prevent runaway code. + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + success = False + tb = None + try: + submitted = compile(answer, '<string>', mode='exec') + g = {} + exec submitted in g + _tests = compile(test_code, '<string>', mode='exec') + exec _tests in g + except TimeoutException: + err = self.timeout_msg + except AssertionError: + type, value, tb = sys.exc_info() + info = traceback.extract_tb(tb) + fname, lineno, func, text = info[-1] + text = str(test_code).splitlines()[lineno-1] + err = "{0} {1} in: {2}".format(type.__name__, str(value), text) + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + else: + success = True + err = 'Correct answer' + finally: + del tb + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def run_bash_code(self, answer, test_code, in_dir=None): + """Tests given Bash code (`answer`) with the `test_code` supplied. + + The testcode should typically contain two lines, the first is a path to + the reference script we are to compare against. The second is a path + to the arguments to be supplied to the reference and submitted script. + The output of these will be compared for correctness. + + If the path's start with a "/" then we assume they are absolute paths. + If not, we assume they are relative paths w.r.t. the location of this + code_server script. + + If the optional `in_dir` keyword argument is supplied it changes the + directory to that directory (it does not change it back to the original + when done). + + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + def _set_exec(fname): + os.chmod(fname, stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR + | stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP + | stat.S_IROTH | stat.S_IWOTH | stat.S_IXOTH) + submit_f = open('submit.sh', 'w') + submit_f.write(answer.lstrip()) + submit_f.close() + submit_path = abspath(submit_f.name) + _set_exec(submit_path) + + ref_path, test_case_path = test_code.strip().splitlines() + if not ref_path.startswith('/'): + ref_path = join(MY_DIR, ref_path) + if not test_case_path.startswith('/'): + test_case_path = join(MY_DIR, test_case_path) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + # Do whatever testing needed. + success = False + try: + success, err = self.check_bash_script(ref_path, submit_path, + test_case_path) + except TimeoutException: + err = self.timeout_msg + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + finally: + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Delete the created file. + os.remove(submit_path) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def _run_command(self, cmd_args, *args, **kw): + """Run a command in a subprocess while blocking, the process is killed + if it takes more than 2 seconds to run. Return the Popen object, the + stdout and stderr. + """ + try: + proc = subprocess.Popen(cmd_args, *args, **kw) + stdout, stderr = proc.communicate() + except TimeoutException: + # Runaway code, so kill it. + proc.kill() + # Re-raise exception. + raise + return proc, stdout, stderr + + def check_bash_script(self, ref_script_path, submit_script_path, + test_case_path=None): + """ Function validates student script using instructor script as + reference. Test cases can optionally be provided. The first argument + ref_script_path, is the path to instructor script, it is assumed to + have executable permission. The second argument submit_script_path, is + the path to the student script, it is assumed to have executable + permission. The Third optional argument is the path to test the + scripts. Each line in this file is a test case and each test case is + passed to the script as standard arguments. + + Returns + -------- + + returns (True, "Correct answer") : If the student script passes all + test cases/have same output, when compared to the instructor script + + returns (False, error_msg): If the student script fails a single + test/have dissimilar output, when compared to the instructor script. + + Returns (False, error_msg): If mandatory arguments are not files or if + the required permissions are not given to the file(s). + + """ + if not isfile(ref_script_path): + return False, "No file at %s" % ref_script_path + if not isfile(submit_script_path): + return False, 'No file at %s' % submit_script_path + if not os.access(ref_script_path, os.X_OK): + return False, 'Script %s is not executable' % ref_script_path + if not os.access(submit_script_path, os.X_OK): + return False, 'Script %s is not executable' % submit_script_path + + if test_case_path is None: + ret = self._run_command(ref_script_path, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, inst_stdout, inst_stderr = ret + ret = self._run_command(submit_script_path, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, stdnt_stdout, stdnt_stderr = ret + if inst_stdout == stdnt_stdout: + return True, 'Correct answer' + else: + err = "Error: expected %s, got %s" % (inst_stderr, + stdnt_stderr) + return False, err + else: + if not isfile(test_case_path): + return False, "No test case at %s" % test_case_path + if not os.access(ref_script_path, os.R_OK): + return False, "Test script %s, not readable" % test_case_path + valid_answer = True # We initially make it one, so that we can + # stop once a test case fails + loop_count = 0 # Loop count has to be greater than or + # equal to one. + # Useful for caching things like empty + # test files,etc. + test_cases = open(test_case_path).readlines() + num_lines = len(test_cases) + for test_case in test_cases: + loop_count += 1 + if valid_answer: + args = [ref_script_path] + [x for x in test_case.split()] + ret = self._run_command(args, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, inst_stdout, inst_stderr = ret + args = [submit_script_path]+[x for x in test_case.split()] + ret = self._run_command(args, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, stdnt_stdout, stdnt_stderr = ret + valid_answer = inst_stdout == stdnt_stdout + if valid_answer and (num_lines == loop_count): + return True, "Correct answer" + else: + err = "Error:expected %s, got %s" % (inst_stdout+inst_stderr, + stdnt_stdout+stdnt_stderr) + return False, err + + def run_c_code(self, answer, test_code, in_dir=None): + """Tests given C code (`answer`) with the `test_code` supplied. + + The testcode is a path to the reference code. + The reference code will call the function submitted by the student. + The reference code will check for the expected output. + + If the path's start with a "/" then we assume they are absolute paths. + If not, we assume they are relative paths w.r.t. the location of this + code_server script. + + If the optional `in_dir` keyword argument is supplied it changes the + directory to that directory (it does not change it back to the original + when done). + + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + # File extension must be .c + submit_f = open('submit.c', 'w') + submit_f.write(answer.lstrip()) + submit_f.close() + submit_path = abspath(submit_f.name) + + ref_path = test_code.strip() + if not ref_path.startswith('/'): + ref_path = join(MY_DIR, ref_path) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + # Do whatever testing needed. + success = False + try: + success, err = self._check_c_cpp_code(ref_path, submit_path) + except TimeoutException: + err = self.timeout_msg + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + finally: + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Delete the created file. + os.remove(submit_path) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def _compile_command(self, cmd, *args, **kw): + """Compiles C/C++/java code and returns errors if any. + Run a command in a subprocess while blocking, the process is killed + if it takes more than 2 seconds to run. Return the Popen object, the + stderr. + """ + try: + proc_compile = subprocess.Popen(cmd, shell=True, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + out, err = proc_compile.communicate() + except TimeoutException: + # Runaway code, so kill it. + proc_compile.kill() + # Re-raise exception. + raise + return proc_compile, err + + def _check_c_cpp_code(self, ref_code_path, submit_code_path): + """ Function validates student code using instructor code as + reference.The first argument ref_code_path, is the path to + instructor code, it is assumed to have executable permission. + The second argument submit_code_path, is the path to the student + code, it is assumed to have executable permission. + + Returns + -------- + + returns (True, "Correct answer") : If the student function returns + expected output when called by reference code. + + returns (False, error_msg): If the student function fails to return + expected output when called by reference code. + + Returns (False, error_msg): If mandatory arguments are not files or + if the required permissions are not given to the file(s). + + """ + if not isfile(ref_code_path): + return False, "No file at %s" % ref_code_path + if not isfile(submit_code_path): + return False, 'No file at %s' % submit_code_path + + success = False + output_path = os.getcwd() + '/output' + compile_command = "g++ %s -c -o %s" % (submit_code_path, output_path) + ret = self._compile_command(compile_command) + proc, stdnt_stderr = ret + + # Only if compilation is successful, the program is executed + # And tested with testcases + if stdnt_stderr == '': + executable = os.getcwd() + '/executable' + compile_main = "g++ %s %s -o %s" % (ref_code_path, output_path, + executable) + ret = self._compile_command(compile_main) + proc, main_err = ret + if main_err == '': + args = [executable] + ret = self._run_command(args, stdin=None, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, stdout, stderr = ret + if proc.returncode == 0: + success, err = True, "Correct answer" + else: + err = stdout + "\n" + stderr + os.remove(executable) + else: + err = "Error:" + try: + error_lines = main_err.splitlines() + for e in error_lines: + err = err + "\n" + e.split(":", 1)[1] + except: + err = err + "\n" + main_err + os.remove(output_path) + else: + err = "Compilation Error:" + try: + error_lines = stdnt_stderr.splitlines() + for e in error_lines: + if ':' in e: + err = err + "\n" + e.split(":", 1)[1] + else: + err = err + "\n" + e + except: + err = err + "\n" + stdnt_stderr + return success, err + + def run_cplus_code(self, answer, test_code, in_dir=None): + """Tests given C++ code (`answer`) with the `test_code` supplied. + + The testcode is a path to the reference code. + The reference code will call the function submitted by the student. + The reference code will check for the expected output. + + If the path's start with a "/" then we assume they are absolute paths. + If not, we assume they are relative paths w.r.t. the location of this + code_server script. + + If the optional `in_dir` keyword argument is supplied it changes the + directory to that directory (it does not change it back to the original + when done). + + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + # The file extension must be .cpp + submit_f = open('submitstd.cpp', 'w') + submit_f.write(answer.lstrip()) + submit_f.close() + submit_path = abspath(submit_f.name) + + ref_path = test_code.strip() + if not ref_path.startswith('/'): + ref_path = join(MY_DIR, ref_path) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + # Do whatever testing needed. + success = False + try: + success, err = self._check_c_cpp_code(ref_path, submit_path) + except TimeoutException: + err = self.timeout_msg + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + finally: + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Delete the created file. + os.remove(submit_path) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def run_java_code(self, answer, test_code, in_dir=None): + """Tests given java code (`answer`) with the `test_code` supplied. + + The testcode is a path to the reference code. + The reference code will call the function submitted by the student. + The reference code will check for the expected output. + + If the path's start with a "/" then we assume they are absolute paths. + If not, we assume they are relative paths w.r.t. the location of this + code_server script. + + If the optional `in_dir` keyword argument is supplied it changes the + directory to that directory (it does not change it back to the original + when done). + + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + # The file extension must be .java + # The class name and file name must be same in java + submit_f = open('Test.java', 'w') + submit_f.write(answer.lstrip()) + submit_f.close() + submit_path = abspath(submit_f.name) + + ref_path = test_code.strip() + if not ref_path.startswith('/'): + ref_path = join(MY_DIR, ref_path) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + # Do whatever testing needed. + success = False + try: + success, err = self._check_java_code(ref_path, submit_path) + except TimeoutException: + err = self.timeout_msg + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + finally: + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Delete the created file. + os.remove(submit_path) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def _check_java_code(self, ref_code_path, submit_code_path): + """ Function validates student code using instructor code as + reference.The first argument ref_code_path, is the path to + instructor code, it is assumed to have executable permission. + The second argument submit_code_path, is the path to the student + code, it is assumed to have executable permission. + + Returns + -------- + + returns (True, "Correct answer") : If the student function returns + expected output when called by reference code. + + returns (False, error_msg): If the student function fails to return + expected output when called by reference code. + + Returns (False, error_msg): If mandatory arguments are not files or + if the required permissions are not given to the file(s). + + """ + if not isfile(ref_code_path): + return False, "No file at %s" % ref_code_path + if not isfile(submit_code_path): + return False, 'No file at %s' % submit_code_path + + success = False + compile_command = "javac %s" % (submit_code_path) + ret = self._compile_command(compile_command) + proc, stdnt_stderr = ret + stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) + + # Only if compilation is successful, the program is executed + # And tested with testcases + if stdnt_stderr == '': + student_directory = os.getcwd() + '/' + student_file_name = "Test" + compile_main = "javac %s -classpath %s -d %s" % (ref_code_path, + student_directory, + student_directory) + ret = self._compile_command(compile_main) + proc, main_err = ret + main_err = self._remove_null_substitute_char(main_err) + + if main_err == '': + main_file_name = (ref_code_path.split('/')[-1]).split('.')[0] + run_command = "java -cp %s %s" % (student_directory, + main_file_name) + ret = self._run_command(run_command, + stdin=None, + shell=True, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, stdout, stderr = ret + if proc.returncode == 0: + success, err = True, "Correct answer" + else: + err = stdout + "\n" + stderr + success = False + os.remove("%s%s.class" % (student_directory, main_file_name)) + else: + err = "Error:\n" + try: + error_lines = main_err.splitlines() + for e in error_lines: + if ':' in e: + err = err + "\n" + e.split(":", 1)[1] + else: + err = err + "\n" + e + except: + err = err + "\n" + main_err + os.remove("%s%s.class" % (student_directory, student_file_name)) + else: + err = "Compilation Error:\n" + try: + error_lines = stdnt_stderr.splitlines() + for e in error_lines: + if ':' in e: + err = err + "\n" + e.split(":", 1)[1] + else: + err = err + "\n" + e + except: + err = err + "\n" + stdnt_stderr + return success, err + + def _remove_null_substitute_char(self, string): + """Returns a string without any null and substitute characters""" + stripped = "" + for c in string: + if ord(c) is not 26 and ord(c) is not 0: + stripped = stripped + c + return ''.join(stripped) + + def run_scilab_code(self, answer, test_code, in_dir=None): + """Tests given Scilab function (`answer`) with the `test_code` + supplied. If the optional `in_dir` keyword argument is supplied + it changes the directory to that directory (it does not change + it back to the original when done). This function also timesout + when the function takes more than SERVER_TIMEOUT seconds to run + to prevent runaway code. + + The testcode is a path to the reference code. + The reference code will call the function submitted by the student. + The reference code will check for the expected output. + + If the path's start with a "/" then we assume they are absolute paths. + If not, we assume they are relative paths w.r.t. the location of this + code_server script. + + Returns + ------- + + A tuple: (success, error message). + + """ + if in_dir is not None and isdir(in_dir): + os.chdir(in_dir) + + # Removes all the commands that terminates scilab + answer,i = self._remove_scilab_exit(answer.lstrip()) + + # Throw message if there are commmands that terminates scilab + add_err="" + if i > 0: + add_err = "Please do not use exit, quit and abort commands in your\ + code.\n Otherwise your code will not be evaluated\ + correctly.\n" + + # The file extension should be .sci + submit_f = open('function.sci','w') + submit_f.write(answer) + submit_f.close() + submit_path = abspath(submit_f.name) + + ref_path = test_code.strip() + if not ref_path.startswith('/'): + ref_path = join(MY_DIR, ref_path) + + # Add a new signal handler for the execution of this code. + old_handler = signal.signal(signal.SIGALRM, timeout_handler) + signal.alarm(SERVER_TIMEOUT) + + # Do whatever testing needed. + success = False + try: + cmd = 'printf "lines(0)\nexec(\'{0}\',2);\nquit();"'.format(ref_path) + cmd += ' | timeout 8 scilab-cli -nb' + ret = self._run_command(cmd, + shell=True, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + proc, stdout, stderr = ret + + # Get only the error. + stderr = self._get_error(stdout) + if stderr is None: + # Clean output + stdout = self._strip_output(stdout) + if proc.returncode == 5: + success, err = True, "Correct answer" + else: + err = add_err + stdout + else: + err = add_err + stderr + except TimeoutException: + err = self.timeout_msg + except: + type, value = sys.exc_info()[:2] + err = "Error: {0}".format(repr(value)) + finally: + # Set back any original signal handler. + signal.signal(signal.SIGALRM, old_handler) + + # Delete the created file. + os.remove(submit_path) + + # Cancel the signal if any, see signal.alarm documentation. + signal.alarm(0) + + # Put us back into the server pool queue since we are free now. + self.queue.put(self.port) + + return success, err + + def _remove_scilab_exit(self, string): + """ + Removes exit, quit and abort from the scilab code + """ + new_string = "" + i=0 + for line in string.splitlines(): + new_line = re.sub(r"exit.*$","",line) + new_line = re.sub(r"quit.*$","",new_line) + new_line = re.sub(r"abort.*$","",new_line) + if line != new_line: + i=i+1 + new_string = new_string +'\n'+ new_line + return new_string, i + + def _get_error(self, string): + """ + Fetches only the error from the string. + Returns None if no error. + """ + obj = re.search("!.+\n.+",string); + if obj: + return obj.group() + return None + + def _strip_output(self, out): + """ + Cleans whitespace from the output + """ + strip_out = "Message" + for l in out.split('\n'): + if l.strip(): + strip_out = strip_out+"\n"+l.strip() + return strip_out + + def run(self): + """Run XMLRPC server, serving our methods. + """ + server = SimpleXMLRPCServer(("localhost", self.port)) + self.server = server + server.register_instance(self) + self.queue.put(self.port) + server.serve_forever() + + +############################################################################### +# `ServerPool` class. +############################################################################### +class ServerPool(object): + """Manages a pool of CodeServer objects.""" + def __init__(self, ports, pool_port=50000): + """Create a pool of servers. Uses a shared Queue to get available + servers. + + Parameters + ---------- + + ports : list(int) + List of ports at which the CodeServer's should run. + + pool_port : int + Port at which the server pool should serve. + """ + self.my_port = pool_port + self.ports = ports + queue = Queue(maxsize=len(ports)) + self.queue = queue + servers = [] + for port in ports: + server = CodeServer(port, queue) + servers.append(server) + p = Process(target=server.run) + p.start() + self.servers = servers + + def get_server_port(self): + """Get available server port from ones in the pool. This will block + till it gets an available server. + """ + q = self.queue + was_waiting = True if q.empty() else False + port = q.get() + if was_waiting: + print '*'*80 + print "No available servers, was waiting but got server \ + later at %d." % port + print '*'*80 + sys.stdout.flush() + return port + + def run(self): + """Run server which returns an available server port where code + can be executed. + """ + server = SimpleXMLRPCServer(("localhost", self.my_port)) + self.server = server + server.register_instance(self) + server.serve_forever() + + +############################################################################### +def main(): + run_as_nobody() + if len(sys.argv) == 1: + ports = SERVER_PORTS + else: + ports = [int(x) for x in sys.argv[1:]] + + server_pool = ServerPool(ports=ports, pool_port=SERVER_POOL_PORT) + server_pool.run() + +if __name__ == '__main__': + main() diff --git a/testapp/exam/output/README.txt b/testapp/exam/output/README.txt new file mode 100644 index 0000000..3163ed4 --- /dev/null +++ b/testapp/exam/output/README.txt @@ -0,0 +1,4 @@ +This directory contains files generated/saved by users as per their +username. The test executor will chdir into this user directory for each +user when they run the test. Do not delete this directory and ensure that +it is writeable by all.
\ No newline at end of file diff --git a/testapp/exam/views.py b/testapp/exam/views.py index 38beb0d..7c9af6c 100644 --- a/testapp/exam/views.py +++ b/testapp/exam/views.py @@ -23,7 +23,7 @@ from exam.xmlrpc_clients import code_server from settings import URL_ROOT # The directory where user data can be saved. -OUTPUT_DIR = abspath(join(dirname(__file__), pardir, 'output')) +OUTPUT_DIR = abspath(join(dirname(__file__), 'output')) def my_redirect(url): |