61
65
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')
73
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
79
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)
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elif act == 'getattempts':
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handle_getattempts(req, exercise)
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elif act == 'getattempt':
96
date = fields.getfirst('date')
98
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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date = datetime.datetime.strptime(date, TIMESTAMP_FORMAT)
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# Date was not in correct format
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req.throw_error(req.HTTP_BAD_REQUEST)
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handle_getattempt(req, exercise, date)
110
req.throw_error(req.HTTP_BAD_REQUEST)
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def handle_save(req, exercisename, code, fields):
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"""Handles a save action. This saves the user's code without executing it.
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# Need to open JUST so we know this is a real exercise.
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# (This avoids users submitting code for bogus exercises).
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exercisefile = util.open_exercise_file(exercisename)
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if exercisefile is None:
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req.throw_error(req.HTTP_NOT_FOUND,
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"The exercise was not found.")
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exercise = ivle.database.Exercise.get_by_name(req.store, exercisename)
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ivle.worksheet.save_exercise(req.store, req.user, exercise,
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unicode(code), datetime.datetime.now())
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req.write('{"result": "ok"}')
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def handle_test(req, exercisesrc, code, fields):
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"""Handles a test action."""
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exercisefile = util.open_exercise_file(exercisesrc)
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if exercisefile is None:
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req.throw_error(req.HTTP_NOT_FOUND,
137
"The exercise was not found.")
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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 = 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 = test.parse_exercise_file(exercisefile, cons)
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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(code)
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# Get the Exercise from the database
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exercise = ivle.database.Exercise.get_by_name(req.store, exercisesrc)
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attempt = ivle.database.ExerciseAttempt(user=req.user,
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date=datetime.datetime.now(),
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complete=test_results['passed'],
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text=unicode(code)) # XXX
164
req.store.add(attempt)
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# 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):
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"""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}
68
class AttemptsRESTView(JSONRESTView):
70
Class to return a list of attempts for a given exercise, or add an Attempt
73
"""Handles a GET Attempts action."""
74
exercise = ivle.database.Exercise.get_by_name(req.store,
76
user = ivle.database.User.get_by_login(req.store, self.username)
78
attempts = ivle.worksheet.get_exercise_attempts(req.store, user,
79
exercise, allow_inactive=HISTORY_ALLOW_INACTIVE)
80
# attempts is a list of ExerciseAttempt objects. Convert to dictionaries
81
time_fmt = lambda dt: datetime.datetime.strftime(dt, TIMESTAMP_FORMAT)
82
attempts = [{'date': time_fmt(a.date), 'complete': a.complete}
184
83
for a in attempts]
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}))
84
attempts.append(self.exercise)
88
def PUT(self, req, data):
90
exercisefile = util.open_exercise_file(self.exercise)
91
if exercisefile is None:
92
req.throw_error(req.HTTP_NOT_FOUND,
93
"The exercise was not found.")
95
# Start a console to run the tests on
96
jail_path = os.path.join(ivle.conf.jail_base, req.user.login)
97
working_dir = os.path.join("/home", req.user.login)
98
cons = console.Console(req.user.unixid, jail_path, working_dir)
100
# Parse the file into a exercise object using the test suite
101
exercise_obj = test.parse_exercise_file(exercisefile, cons)
104
# Run the test cases. Get the result back as a JSONable object.
106
test_results = exercise_obj.run_tests(code)
111
# Get the Exercise from the database
112
exercise = ivle.database.Exercise.get_by_name(req.store, exercisesrc)
114
attempt = ivle.database.ExerciseAttempt(user=req.user,
116
date=datetime.datetime.now(),
117
complete=test_results['passed'],
118
text=unicode(code)) # XXX
120
req.store.add(attempt)
122
# Query the DB to get an updated score on whether or not this problem
123
# has EVER been completed (may be different from "passed", if it has
124
# been completed before), and the total number of attempts.
125
completed, attempts = ivle.worksheet.get_exercise_status(req.store,
127
test_results["completed"] = completed
128
test_results["attempts"] = attempts
133
class AttemptRESTView(JSONRESTView):
135
View used to extract the data of a specified attempt
139
# Get an actual date object, rather than a string
140
date = datetime.datetime.strptime(self.date, TIMESTAMP_FORMAT)
142
exercise = ivle.database.Exercise.get_by_name(req.store, self.exercise)
143
attempt = ivle.worksheet.get_exercise_attempt(req.store, req.user,
144
exercise, as_of=date, allow_inactive=HISTORY_ALLOW_INACTIVE)
145
if attempt is not None:
146
attempt = attempt.text
147
# attempt may be None; will write "null"
148
return {'code': attempt}
150
class ExerciseRESTView(JSONRESTView):
152
Handles a save action. This saves the user's code without executing it.
155
def save(self, req, user, text):
156
# Need to open JUST so we know this is a real exercise.
157
# (This avoids users submitting code for bogus exercises).
158
exercisefile = util.open_exercise_file(self.exercise)
159
if exercisefile is None:
160
req.throw_error(req.HTTP_NOT_FOUND,
161
"The exercise was not found.")
164
exercise = ivle.database.Exercise.get_by_name(req.store, self.exercise)
165
ivle.worksheet.save_exercise(req.store, req.user, exercise,
166
unicode(code), datetime.datetime.now())
168
return {"result": "ok"}