15
15
# along with this program; if not, write to the Free Software
16
16
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
# Module: TutorialService
22
# Provides the AJAX backend for the tutorial application.
23
# This allows several actions to be performed on the code the student has
24
# typed into one of the exercise boxes.
28
# The arguments determine what is to be done on this file.
30
# "exercise" - The path to a exercise file (including the .xml extension),
31
# relative to the subjects base directory.
32
# "code" - Full text of the student's code being submitted.
33
# "action". May be "test". (More to come).
35
# Returns a JSON response string indicating the results.
47
"""Handler for Ajax backend TutorialService app."""
48
# Set request attributes
49
req.write_html_head_foot = False # No HTML
52
req.throw_error(req.HTTP_BAD_REQUEST)
53
# Get all the arguments, if POST.
54
# Ignore arguments if not POST, since we aren't allowed to cause
55
# side-effects on the server.
56
fields = req.get_fieldstorage()
57
act = fields.getfirst('action')
58
exercise = fields.getfirst('exercise')
59
code = fields.getfirst('code')
61
if exercise == None or code == None or act == None:
62
req.throw_error(req.HTTP_BAD_REQUEST)
64
exercise = exercise.value
68
handle_test(req, exercise, code, fields)
70
handle_run(req, exercise, code, fields)
72
req.throw_error(req.HTTP_BAD_REQUEST)
74
def handle_test(req, exercise, code, fields):
75
"""Handles a test action."""
77
# First normalise the path
78
exercise = os.path.normpath(exercise)
79
# Now if it begins with ".." or separator, then it's illegal
80
if exercise.startswith("..") or exercise.startswith(os.sep):
83
exercisefile = os.path.join(conf.exercises_base, exercise)
86
exercisefile = open(exercisefile)
87
except (TypeError, IOError): # TypeError if exercisefile == None
88
req.throw_error(req.HTTP_NOT_FOUND)
90
# Parse the file into a exercise object using the test suite
91
exercise_obj = test.parse_exercise_file(exercisefile)
93
# Run the test cases. Get the result back as a JSONable object.
95
test_results = exercise_obj.run_tests(code)
96
req.write(cjson.encode(test_results))
100
x = conn.get_single({'identifier':exercise},
101
'problem', ['problemid'], ['identifier'])
102
problemid = x['problemid']
104
x = conn.get_single({'login':req.user.login},
105
'login', ['loginid'], ['login'])
106
loginid = x['loginid']
109
rec['problemid'] = problemid
110
rec['loginid'] = loginid
111
rec['date'] = time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime())
112
rec['complete'] = test_results['passed']
113
rec['attempt'] = code
115
print >> open("/tmp/attempts.txt", "a"), repr(rec)
117
conn.insert(rec, 'problem_attempt',
118
set(['problemid','loginid','date','complete','attempt']))
120
def handle_run(req, exercise, code, fields):
121
"""Handles a run action."""
122
# Extremely makeshift.
123
# For now, just echo the code back
125
out_json = {"stdout": output}
126
req.write(cjson.encode(out_json))
18
# Author: Matt Giuca, Nick Chadwick
20
'''AJAX backend for the tutorial application.'''
25
from storm.locals import Store
28
from ivle.database import Exercise, ExerciseAttempt, ExerciseSave, Worksheet, \
29
Offering, Subject, Semester, User, WorksheetExercise
30
import ivle.worksheet.utils
31
from ivle.webapp.base.rest import (JSONRESTView, write_operation,
33
from ivle.webapp.errors import NotFound
36
TIMESTAMP_FORMAT = '%Y-%m-%d %H:%M:%S'
39
class AttemptsRESTView(JSONRESTView):
40
'''REST view of a user's attempts at an exercise.'''
42
@require_permission('edit')
44
"""Handles a GET Attempts action."""
45
attempts = req.store.find(ExerciseAttempt,
46
ExerciseAttempt.ws_ex_id == self.context.worksheet_exercise.id,
47
ExerciseAttempt.user_id == self.context.user.id)
48
# attempts is a list of ExerciseAttempt objects. Convert to dictionaries
49
time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
50
attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
56
@require_permission('edit')
57
def PUT(self, req, data):
58
""" Tests the given submission """
59
# Trim off any trailing whitespace (can cause syntax errors in python)
60
# While technically this is a user error, it causes a lot of confusion
61
# for student since it's "invisible".
62
code = data['code'].rstrip()
64
test_results = ivle.worksheet.utils.test_exercise_submission(
65
req.config, req.user, self.context.worksheet_exercise.exercise,
68
attempt = ivle.database.ExerciseAttempt(user=req.user,
69
worksheet_exercise = self.context.worksheet_exercise,
70
date = datetime.datetime.now(),
71
complete = test_results['passed'],
75
req.store.add(attempt)
77
# Query the DB to get an updated score on whether or not this problem
78
# has EVER been completed (may be different from "passed", if it has
79
# been completed before), and the total number of attempts.
80
completed, attempts = ivle.worksheet.utils.get_exercise_status(
81
req.store, req.user, self.context.worksheet_exercise)
82
test_results["completed"] = completed
83
test_results["attempts"] = attempts
88
class AttemptRESTView(JSONRESTView):
89
'''REST view of an exercise attempt.'''
91
@require_permission('view')
93
return {'code': self.context.text}
96
class WorksheetExerciseRESTView(JSONRESTView):
97
'''REST view of a worksheet exercise.'''
99
@write_operation('view')
100
def save(self, req, text):
101
# Find the appropriate WorksheetExercise to save to. If its not found,
102
# the user is submitting against a non-existant worksheet/exercise
104
old_save = req.store.find(ExerciseSave,
105
ExerciseSave.ws_ex_id == self.context.id,
106
ExerciseSave.user == req.user).one()
108
#Overwrite the old, or create a new if there isn't one
110
new_save = ExerciseSave()
111
req.store.add(new_save)
115
new_save.worksheet_exercise = self.context
116
new_save.user = req.user
117
new_save.text = unicode(text)
118
new_save.date = datetime.datetime.now()
120
return {"result": "ok"}
123
class WorksheetsRESTView(JSONRESTView):
124
"""View used to update and create Worksheets."""
126
@write_operation('edit_worksheets')
127
def move_up(self, req, worksheetid):
128
"""Takes a list of worksheet-seq_no pairs and updates their
129
corresponding Worksheet objects to match."""
131
worksheet_below = req.store.find(Worksheet,
132
Worksheet.offering_id == self.context.id,
133
Worksheet.identifier == unicode(worksheetid)).one()
134
if worksheet_below is None:
135
raise NotFound('worksheet_below')
136
worksheet_above = req.store.find(Worksheet,
137
Worksheet.offering_id == self.context.id,
138
Worksheet.seq_no == (worksheet_below.seq_no - 1)).one()
139
if worksheet_above is None:
140
raise NotFound('worksheet_above')
142
worksheet_below.seq_no = worksheet_below.seq_no - 1
143
worksheet_above.seq_no = worksheet_above.seq_no + 1
145
return {'result': 'ok'}
147
@write_operation('edit_worksheets')
148
def move_down(self, req, worksheetid):
149
"""Takes a list of worksheet-seq_no pairs and updates their
150
corresponding Worksheet objects to match."""
152
worksheet_above = req.store.find(Worksheet,
153
Worksheet.offering_id == self.context.id,
154
Worksheet.identifier == unicode(worksheetid)).one()
155
if worksheet_above is None:
156
raise NotFound('worksheet_below')
157
worksheet_below = req.store.find(Worksheet,
158
Worksheet.offering_id == self.context.id,
159
Worksheet.seq_no == (worksheet_above.seq_no + 1)).one()
160
if worksheet_below is None:
161
raise NotFound('worksheet_above')
163
worksheet_below.seq_no = worksheet_below.seq_no - 1
164
worksheet_above.seq_no = worksheet_above.seq_no + 1
166
return {'result': 'ok'}