61
39
TIMESTAMP_FORMAT = '%Y-%m-%d %H:%M:%S'
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"""Handler for Ajax backend TutorialService app."""
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# Set request attributes
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req.write_html_head_foot = False # No HTML
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req.throw_error(req.HTTP_BAD_REQUEST)
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fields = req.get_fieldstorage()
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act = fields.getfirst('action')
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exercise = fields.getfirst('exercise')
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if act is None or exercise is None:
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req.throw_error(req.HTTP_BAD_REQUEST)
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exercise = exercise.value
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if act == 'save' or act == 'test':
81
if req.method != 'POST':
82
req.throw_error(req.HTTP_BAD_REQUEST)
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code = fields.getfirst('code')
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req.throw_error(req.HTTP_BAD_REQUEST)
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handle_save(req, exercise, code, fields)
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handle_test(req, exercise, code, fields)
93
elif act == 'getattempts':
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handle_getattempts(req, exercise)
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elif act == 'getattempt':
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date = fields.getfirst('date')
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req.throw_error(req.HTTP_BAD_REQUEST)
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# Convert into a struct_time
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# The time *should* be in the same format as the DB (since it should
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# be bounced back to us from the getattempts output). Assume this.
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class AttemptsRESTView(JSONRESTView):
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'''REST view of a user's attempts at an exercise.'''
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def __init__(self, req, subject, worksheet, exercise, username):
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# TODO: Find exercise within worksheet.
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self.user = ivle.database.User.get_by_login(req.store, username)
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self.exercise = exercise
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"""Handles a GET Attempts action."""
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exercise = ivle.database.Exercise.get_by_name(req.store,
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attempts = ivle.worksheet.get_exercise_attempts(req.store, self.user,
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exercise, allow_inactive=HISTORY_ALLOW_INACTIVE)
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# attempts is a list of ExerciseAttempt objects. Convert to dictionaries
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time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
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attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
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def PUT(self, req, data):
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''' Tests the given submission '''
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exercisefile = ivle.util.open_exercise_file(self.exercise)
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if exercisefile is None:
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# Start a console to run the tests on
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jail_path = os.path.join(ivle.conf.jail_base, req.user.login)
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working_dir = os.path.join("/home", req.user.login)
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cons = ivle.console.Console(req.user.unixid, jail_path, working_dir)
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# Parse the file into a exercise object using the test suite
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exercise_obj = ivle.webapp.tutorial.test.parse_exercise_file(
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# Run the test cases. Get the result back as a JSONable object.
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test_results = exercise_obj.run_tests(data['code'])
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# Get the Exercise from the database
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exercise = ivle.database.Exercise.get_by_name(req.store, self.exercise)
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attempt = ivle.database.ExerciseAttempt(user=req.user,
94
date=datetime.datetime.now(),
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complete=test_results['passed'],
97
text=unicode(data['code']))
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req.store.add(attempt)
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# Query the DB to get an updated score on whether or not this problem
102
# has EVER been completed (may be different from "passed", if it has
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# been completed before), and the total number of attempts.
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completed, attempts = ivle.worksheet.get_exercise_status(req.store,
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test_results["completed"] = completed
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test_results["attempts"] = attempts
112
class AttemptRESTView(JSONRESTView):
113
'''REST view of an exercise attempt.'''
115
def __init__(self, req, subject, worksheet, exercise, username, date):
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# TODO: Find exercise within worksheet.
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user = ivle.database.User.get_by_login(req.store, username)
104
122
date = datetime.datetime.strptime(date, TIMESTAMP_FORMAT)
105
123
except ValueError:
106
# Date was not in correct format
107
req.throw_error(req.HTTP_BAD_REQUEST)
108
handle_getattempt(req, exercise, date)
110
req.throw_error(req.HTTP_BAD_REQUEST)
112
def handle_save(req, exercisename, code, fields):
113
"""Handles a save action. This saves the user's code without executing it.
115
# Need to open JUST so we know this is a real exercise.
116
# (This avoids users submitting code for bogus exercises).
117
exercisefile = util.open_exercise_file(exercisename)
118
if exercisefile is None:
119
req.throw_error(req.HTTP_NOT_FOUND,
120
"The exercise was not found.")
123
exercise = ivle.database.Exercise.get_by_name(req.store, exercisename)
124
ivle.worksheet.save_exercise(req.store, req.user, exercise,
125
unicode(code), datetime.datetime.now())
128
req.write('{"result": "ok"}')
131
def handle_test(req, exercisesrc, code, fields):
132
"""Handles a test action."""
134
exercisefile = util.open_exercise_file(exercisesrc)
135
if exercisefile is None:
136
req.throw_error(req.HTTP_NOT_FOUND,
137
"The exercise was not found.")
139
# Start a console to run the tests on
140
jail_path = os.path.join(ivle.conf.jail_base, req.user.login)
141
working_dir = os.path.join("/home", req.user.login)
142
cons = console.Console(req.user.unixid, jail_path, working_dir)
144
# Parse the file into a exercise object using the test suite
145
exercise_obj = test.parse_exercise_file(exercisefile, cons)
148
# Run the test cases. Get the result back as a JSONable object.
150
test_results = exercise_obj.run_tests(code)
155
# Get the Exercise from the database
156
exercise = ivle.database.Exercise.get_by_name(req.store, exercisesrc)
158
attempt = ivle.database.ExerciseAttempt(user=req.user,
160
date=datetime.datetime.now(),
161
complete=test_results['passed'],
162
text=unicode(code)) # XXX
164
req.store.add(attempt)
166
# Query the DB to get an updated score on whether or not this problem
167
# has EVER been completed (may be different from "passed", if it has
168
# been completed before), and the total number of attempts.
169
completed, attempts = ivle.worksheet.get_exercise_status(req.store,
171
test_results["completed"] = completed
172
test_results["attempts"] = attempts
174
req.write(cjson.encode(test_results))
176
def handle_getattempts(req, exercisename):
177
"""Handles a getattempts action."""
178
exercise = ivle.database.Exercise.get_by_name(req.store, exercisename)
179
attempts = ivle.worksheet.get_exercise_attempts(req.store, req.user,
180
exercise, allow_inactive=HISTORY_ALLOW_INACTIVE)
181
# attempts is a list of ExerciseAttempt objects. Convert to dictionaries.
182
time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
183
attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
185
req.write(cjson.encode(attempts))
187
def handle_getattempt(req, exercisename, date):
188
"""Handles a getattempts action. Date is a datetime.datetime."""
189
exercise = ivle.database.Exercise.get_by_name(req.store, exercisename)
190
attempt = ivle.worksheet.get_exercise_attempt(req.store, req.user,
191
exercise, as_of=date, allow_inactive=HISTORY_ALLOW_INACTIVE)
192
if attempt is not None:
193
attempt = attempt.text
194
# attempt may be None; will write "null"
195
req.write(cjson.encode({'code': attempt}))
126
exercise = ivle.database.Exercise.get_by_name(req.store, exercise)
127
attempt = ivle.worksheet.get_exercise_attempt(req.store, user,
128
exercise, as_of=date, allow_inactive=HISTORY_ALLOW_INACTIVE)
133
self.context = attempt
136
return {'code': self.context.text}
139
class ExerciseRESTView(JSONRESTView):
140
'''REST view of an exercise.'''
142
def save(self, req, text):
143
# Need to open JUST so we know this is a real exercise.
144
# (This avoids users submitting code for bogus exercises).
145
exercisefile = ivle.util.open_exercise_file(self.exercise)
146
if exercisefile is None:
150
exercise = ivle.database.Exercise.get_by_name(req.store, self.exercise)
151
ivle.worksheet.save_exercise(req.store, req.user, exercise,
152
unicode(text), datetime.datetime.now())
153
return {"result": "ok"}