def clear_observations():
'''
Attempts to remove all saved observation files
If the files could not be removed (an exception of some sort),
then a danger alert is saved.
If the files were removed successfully, a success alert is saved.
In either case, the user is redirected to /
Requires users to be logged in
Returns: None.
'''
# Try to remove all json files from observations directory
try:
filelist = glob("observations/*.json")
for f in filelist:
os.remove(f)
# If error, log danger error
except:
save_danger("Clear Observations failed")
# Otherwise log success
else:
save_success("Cleared all observations.")
# Then redirect to main page
finally:
redirect("/")
def remove_observation(observation_id):
'''
Attempts to remove the observation with id observation_id
If the file could not be removed (OSError), then a danger alert is saved.
If the file was removed successfully, a success alert is saved.
In either case, the user is redirected to /
Requires users to be logged in
:param: uuid to be removed (no json extention)
:Returns: None.
'''
# Try to the specified json file from observations directory
try:
rmfile = "observations/" + observation_id + '.json'
os.remove(rmfile)
# If error, log danger error
except:
save_danger('No such observation {}'.format(observation_id))
# Otherwise log success
else:
save_success('Removed {}.'.format(observation_id))
# Then redirect to main page
finally:
redirect("/")
def shred_messages():
"""Handler for POST requests to ``/shred/`` path.
* Attempts to remove all saved message files
- If any files could not be removed (an exception of some sort),
then a danger alert is saved.
- If all files were removed successfully, a success alert is saved.
- In either case, the user is redirected to ``/``
* Requires users to be logged in
:returns: None. This function only redirects users to other
pages. It has no template to render.
"""
# For every file in messages directory, remove the message
for file in glob('messages/*.json'):
try:
os.remove(file)
except:
# If file can't be removed, save alert with message id
save_danger("Couldn't shred {}".format(file[9:45]))
# If there are no messages left, save success message
if len(glob('messages/*.json')) == 0:
save_success("Shreded all messages.")
redirect("/")
def delete_message(message_id):
"""Handler for POST requests to ``/delete/<message_id>/`` path.
* Attempts to remove file with message ID ``message_id``
- If the file could not be removed (``OSError``), then a danger
alert is saved.
- If the file was removed successfully, a success alert is saved.
- In either case, the user is redirected to ``/``.
* Requires a user to be authorized to delete the message
* Requires users to be logged in
:returns: None. This function only redirects users to other
pages. It has no template to render.
"""
# Directory of the file to delete
dir = os.path.join('messages/', '{}.json'.format(message_id))
# Attempt to delete it
try:
os.remove(dir)
save_success("Deleted {}.".format(message_id))
# If it can't be deleted, save danger alert
except OSError:
save_danger("No such message {}".format(message_id))
finally:
redirect("/")
def leave_event(eventId):
if request.get_cookie('current_user'):
unregisterFromEvent(eventId, request.get_cookie('current_user'))
# TODO: Make save_success output the event's name.
save_success('Sucessfully unregistered from the event.')
redirect('/events/')
else:
save_danger('You have to be signed in to do that!')
redirect('/events/')
def create_event():
errors = eventValidation(request.forms)
if errors:
for err in errors:
save_danger(err)
redirect('/events/createEvent/')
else:
eventInsertion(request.forms)
save_success('Event created successfully!')
redirect('/events/')
def validate_signup():
signupForm = request.forms
errors = formValidation(signupForm)
if errors:
for i in errors:
save_danger(i)
redirect('/signup/')
else:
formInsertion(signupForm)
save_success('Account created successfully!')
redirect('/login/')
def change_profile(username):
if request.get_cookie('current_user'):
errors = editUserProfile(request.forms, username)
if errors:
for err in errors:
save_danger(err)
redirect('/users/{}/'.format(username))
else:
save_success('Profile changed successfully!')
redirect('/users/{}/'.format(username))
else:
redirect('/users/{}/'.format(username))
def validate_login():
loginForm = request.forms
errors = checkLogin(loginForm)
if errors:
for i in errors:
save_danger(i)
redirect('/login/')
# If user signed in successfully:
# Grab their username, and sanitize it.
username = loginForm['username']
# Create a session variable equal to their username:
response.set_cookie("current_user", username, path='/')
# Let them know they've been signed in successfully:
save_success('Successfully logged in as {}'.format(username))
# Redirect them back to the home page:
redirect('/')
def process_observation_form():
'''
Validates the submitted form
If the form is has errors, saves the errors as danger alerts
and redirects the user back to /add/
Saves a new observation file to disk
Save a success alert message
Redirects the user to /
Requires users to be logged in
:Returns: None.
'''
# Create a blank dict to store the form in
form = {}
# See if forms contains suspect
try:
form['suspect'] = request.forms['suspect']
except:
pass
# See if forms contains location
try:
form['location'] = request.forms['location']
except:
pass
# See if forms contains time
try:
form['time'] = request.forms['time']
except:
pass
# Find possible errors from form
errors = validate_observation_form(form)
# Save errors and redirect
if errors:
for alerts in errors:
save_danger(alerts)
redirect('/add/')
# Add reporter field to form
form['reporter'] = request.get_cookie('logged_in_as')
# Save form, save success alert, and redirect
save_observation(form)
save_success("New observation added!")
redirect("/")
def process_compose_message_form():
"""Handler for POST requests to ``/compose/`` path.
* Processes the message form
1. Validates the submitted form
- **If the form is has any errors**, saves the errors as
danger alerts and redirects the user back to ``/compose/``
- Otherwise (no errors) proceed to step 2.
2. Saves message data to a new file on disk
3. Save a success alert message
4. Redirects the user to ``/``
* Requires users to be logged in
:returns: None. This function only redirects users to other
pages. It has no template to render.
"""
# Validate the form, get errors if there are any.
errors = validate_message_form(request.forms)
# Save errors and redirect
if errors:
save_danger(*errors)
redirect('/compose/')
# Otherwise get the necessary info in the dictionary
dict = {}
dict['to'] = request.forms['to']
dict['from'] = request.get_cookie("logged_in_as")
dict['subject'] = request.forms['subject']
dict['body'] = request.forms['body']
dict['time'] = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
# Send the message (creates a .json file in messages/)
send_message(dict)
save_success("Message sent!")
redirect("/")
def process_login_form():
"""Handler for POST requests to ``/login/`` path.
* Processes the login form
1. Validates the submitted form
* If the form is has errors, saves the errors as
danger alerts and redirects the user back to ``/login/``
2. Checks that the user's username/password combo is good
* Usernames are case insensitive
3. Redirects the user
- If their credentials were good, set their
``logged_in_as`` cookie to their username, save a
success alert, and redirect them to ``/``
- If their credentials were bad, save a danger alert, and
redirect them to ``/login/``
:returns: None. This function only redirects users to other
pages. It has no template to render.
"""
errors = validate_login_form(request.forms)
if errors:
save_danger(*errors)
redirect('/login/')
username = request.forms['username'].lower()
password = request.forms['password']
# TODO some kind of actual authentication
if check_password(username, password):
response.set_cookie("logged_in_as", username, path='/')
save_success("Successfully logged in as {}.".format(username))
redirect("/")
else:
save_danger("Incorrect username/password information.")
redirect("/login/")
def log_out():
if request.get_cookie('current_user'):
response.set_cookie('current_user', "", path='/')
save_success('You have been successfully logged out.')
redirect('/')
def remove_event(eventId):
deleteEvent(eventId)
save_success('Deleted event successfully!')
redirect('/events/')
