def statements_put(req_dict):
# Find any unexpected parameters
rogueparams = set(req_dict['params']) - set(["statementId"])
if rogueparams and not ignore_rogue_params:
raise ParamError(
"The put statements request contained unexpected parameters: %s" %
", ".join(rogueparams))
# Statement id can must be supplied in query param. If in the body too, it must be the same
if not 'statementId' in req_dict['params']:
raise ParamError(
"Error -- statements - method = %s, but no statementId parameter or ID given in statement"
% req_dict['method'])
else:
statement_id = req_dict['params']['statementId']
# Convert data so it can be parsed
if isinstance(req_dict['body'], basestring):
req_dict['body'] = convert_to_dict(req_dict['body'])
# Try to get id if in body
try:
statement_body_id = req_dict['body']['id']
except Exception, e:
statement_body_id = None
def process_complex_get(req_dict):
mime_type = "application/json"
# Parse out params into single dict-GET data not in body
param_dict = {}
try:
param_dict = req_dict['body']
if not isinstance(param_dict, dict):
param_dict = convert_to_dict(param_dict)
except KeyError:
pass # no params in the body
param_dict.update(req_dict['params'])
format = param_dict['format']
# Set language if one pull from req_dict since language is from a header, not an arg
language = None
if 'headers' in req_dict and ('format' in param_dict and param_dict['format'] == "canonical"):
if 'language' in req_dict['headers']:
language = req_dict['headers']['language']
else:
language = settings.LANGUAGE_CODE
# If auth is in req dict, add it to param dict
if 'auth' in req_dict:
param_dict['auth'] = req_dict['auth']
# Get limit if one
limit = None
if 'params' in req_dict and 'limit' in req_dict['params']:
limit = int(req_dict['params']['limit'])
elif 'body' in req_dict and 'limit' in req_dict['body']:
limit = int(req_dict['body']['limit'])
# See if attachments should be included
try:
attachments = req_dict['params']['attachments']
except Exception:
attachments = False
# Create returned stmt list from the req dict
stmt_result = complex_get(param_dict, limit, language, format, attachments)
if format == 'exact':
content_length = len(stmt_result)
else:
content_length = len(json.dumps(stmt_result))
# If attachments=True in req_dict then include the attachment payload and return different mime type
if attachments:
stmt_result, mime_type, content_length = build_response(stmt_result)
resp = HttpResponse(stmt_result, content_type=mime_type, status=200)
# Else attachments are false for the complex get so just dump the stmt_result
else:
if format == 'exact':
result = stmt_result
else:
result = json.dumps(stmt_result)
content_length = len(result)
resp = HttpResponse(result, content_type=mime_type, status=200)
return resp, content_length
def process_complex_get(req_dict):
mime_type = "application/json"
# Parse out params into single dict-GET data not in body
param_dict = {}
try:
param_dict = req_dict['body']
if not isinstance(param_dict, dict):
param_dict = convert_to_dict(param_dict)
except KeyError:
pass # no params in the body
param_dict.update(req_dict['params'])
format = param_dict['format']
# Set language if one pull from req_dict since language is from a header, not an arg
language = None
if 'headers' in req_dict and ('format' in param_dict and param_dict['format'] == "canonical"):
if 'language' in req_dict['headers']:
language = req_dict['headers']['language']
else:
language = settings.LANGUAGE_CODE
# If auth is in req dict, add it to param dict
if 'auth' in req_dict:
param_dict['auth'] = req_dict['auth']
# Get limit if one
limit = None
if 'params' in req_dict and 'limit' in req_dict['params']:
limit = int(req_dict['params']['limit'])
elif 'body' in req_dict and 'limit' in req_dict['body']:
limit = int(req_dict['body']['limit'])
# See if attachments should be included
try:
attachments = req_dict['params']['attachments']
except Exception:
attachments = False
# Create returned stmt list from the req dict
stmt_result = complex_get(param_dict, limit, language, format, attachments)
if format == 'exact':
content_length = len(stmt_result)
else:
content_length = len(json.dumps(stmt_result))
# If attachments=True in req_dict then include the attachment payload and return different mime type
if attachments:
stmt_result, mime_type, content_length = build_response(stmt_result, content_length)
resp = HttpResponse(stmt_result, content_type=''.join((mime_type, '; charset=utf-8')), status=200)
# Else attachments are false for the complex get so just dump the stmt_result
else:
if format == 'exact':
result = stmt_result
else:
result = json.dumps(stmt_result)
content_length = len(result)
resp = HttpResponse(result, content_type=''.join((mime_type, '; charset=utf-8')), status=200)
return resp, content_length
def parse_attachment(r, request):
message = request.body
# i need boundary to be in the message for email to parse it right
if 'boundary' not in message[:message.index("--")]:
if 'boundary' in request.META['CONTENT_TYPE']:
message = request.META['CONTENT_TYPE'] + message
else:
raise BadRequest(
"Could not find the boundary for the multipart content")
msg = email.message_from_string(message)
if msg.is_multipart():
parts = []
for part in msg.walk():
parts.append(part)
if len(parts) < 1:
raise ParamError(
"The content of the multipart request didn't contain a statement"
)
# ignore parts[0], it's the whole thing
# parts[1] better be the statement
r['body'] = convert_to_dict(parts[1].get_payload())
if len(parts) > 2:
r['payload_sha2s'] = []
for a in parts[2:]:
# attachments
thehash = a.get("X-Experience-API-Hash")
if not thehash:
raise BadRequest(
"X-Experience-API-Hash header was missing from attachment"
)
r['payload_sha2s'].append(thehash)
# Save msg object to cache
att_cache.set(thehash, a)
else:
raise ParamError(
"This content was not multipart for the multipart request.")
# see if the posted statements have attachments
att_stmts = []
if isinstance(r['body'], list):
for s in r['body']:
if 'attachments' in s:
att_stmts.append(s)
elif 'attachments' in r['body']:
att_stmts.append(r['body'])
if att_stmts:
# find if any of those statements with attachments have a signed statement
signed_stmts = [(s, a) for s in att_stmts
for a in s.get('attachments', None) if a['usageType']
== "http://adlnet.gov/expapi/attachments/signature"]
for ss in signed_stmts:
attmnt = att_cache.get(ss[1]['sha2']).get_payload(decode=True)
jws = JWS(jws=attmnt)
try:
if not jws.verify() or not jws.validate(ss[0]):
raise BadRequest("The JSON Web Signature is not valid")
except JWSException as jwsx:
raise BadRequest(jwsx)
def statements_post(req_dict):
if req_dict['params'].keys():
raise ParamError("The post statements request contained unexpected parameters: %s" % ", ".join(req_dict['params'].keys()))
if isinstance(req_dict['body'], basestring):
req_dict['body'] = convert_to_dict(req_dict['body'])
try:
validator = StatementValidator(req_dict['body'])
validator.validate()
except Exception, e:
raise BadRequest(e.message)
def statements_post(req_dict):
if req_dict['params'].keys():
raise ParamError("The post statements request contained unexpected parameters: %s" % ", ".join(req_dict['params'].keys()))
if isinstance(req_dict['body'], basestring):
req_dict['body'] = convert_to_dict(req_dict['body'])
try:
validator = StatementValidator(req_dict['body'])
validator.validate()
except Exception, e:
raise BadRequest(e.message)
def parse_attachment(r, request):
message = request.body
# i need boundary to be in the message for email to parse it right
if 'boundary' not in message[:message.index("--")]:
if 'boundary' in request.META['CONTENT_TYPE']:
message = request.META['CONTENT_TYPE'] + message
else:
raise BadRequest("Could not find the boundary for the multipart content")
msg = email.message_from_string(message)
if msg.is_multipart():
parts = []
for part in msg.walk():
parts.append(part)
if len(parts) < 1:
raise ParamError("The content of the multipart request didn't contain a statement")
# ignore parts[0], it's the whole thing
# parts[1] better be the statement
r['body'] = convert_to_dict(parts[1].get_payload())
if len(parts) > 2:
r['payload_sha2s'] = []
for a in parts[2:]:
# attachments
thehash = a.get("X-Experience-API-Hash")
if not thehash:
raise BadRequest("X-Experience-API-Hash header was missing from attachment")
r['payload_sha2s'].append(thehash)
# Save msg object to cache
att_cache.set(thehash, a)
else:
raise ParamError("This content was not multipart for the multipart request.")
# see if the posted statements have attachments
att_stmts = []
if isinstance(r['body'], list):
for s in r['body']:
if 'attachments' in s:
att_stmts.append(s)
elif 'attachments' in r['body']:
att_stmts.append(r['body'])
if att_stmts:
# find if any of those statements with attachments have a signed statement
signed_stmts = [(s,a) for s in att_stmts for a in s.get('attachments', None) if a['usageType'] == "http://adlnet.gov/expapi/attachments/signature"]
for ss in signed_stmts:
attmnt = att_cache.get(ss[1]['sha2']).get_payload(decode=True)
jws = JWS(jws=attmnt)
try:
if not jws.verify() or not jws.validate(ss[0]):
raise BadRequest("The JSON Web Signature is not valid")
except JWSException as jwsx:
raise BadRequest(jwsx)
def statements_put(req_dict):
# Find any unexpected parameters
rogueparams = set(req_dict['params']) - set(["statementId"])
if rogueparams:
raise ParamError("The put statements request contained unexpected parameters: %s" % ", ".join(rogueparams))
# Statement id can must be supplied in query param. If in the body too, it must be the same
if not 'statementId' in req_dict['params']:
raise ParamError("Error -- statements - method = %s, but no statementId parameter or ID given in statement" % req_dict['method'])
else:
statement_id = req_dict['params']['statementId']
# Convert data so it can be parsed
if isinstance(req_dict['body'], basestring):
req_dict['body'] = convert_to_dict(req_dict['body'])
# Try to get id if in body
try:
statement_body_id = req_dict['body']['id']
except Exception, e:
statement_body_id = None
def parse_body(r, request):
if request.method == 'POST' or request.method == 'PUT':
# Parse out profiles/states if the POST dict is not empty
if 'multipart/form-data' in request.META['CONTENT_TYPE']:
if request.POST.dict().keys():
r['params'].update(request.POST.dict())
parser = MultiPartParser(request.META, StringIO.StringIO(request.raw_post_data),request.upload_handlers)
post, files = parser.parse()
r['files'] = files
# If it is multipart/mixed, parse out all data
elif 'multipart/mixed' in request.META['CONTENT_TYPE']:
parse_attachment(r, request)
# Normal POST/PUT data
else:
if request.body:
# profile uses the request body
r['raw_body'] = request.body
# Body will be some type of string, not necessarily JSON
r['body'] = convert_to_dict(request.body)
else:
raise BadRequest("No body in request")
return r
def parse_body(r, request):
if request.method == 'POST' or request.method == 'PUT':
# Parse out profiles/states if the POST dict is not empty
if 'multipart/form-data' in request.META['CONTENT_TYPE']:
if request.POST.dict().keys():
r['params'].update(request.POST.dict())
parser = MultiPartParser(
request.META, StringIO.StringIO(request.raw_post_data),
request.upload_handlers)
post, files = parser.parse()
r['files'] = files
# If it is multipart/mixed, parse out all data
elif 'multipart/mixed' in request.META['CONTENT_TYPE']:
parse_attachment(r, request)
# Normal POST/PUT data
else:
if request.body:
# profile uses the request body
r['raw_body'] = request.body
# Body will be some type of string, not necessarily JSON
r['body'] = convert_to_dict(request.body)
else:
raise BadRequest("No body in request")
return r
def __init__(self, data=None):
# If incoming is a string, ast eval it (exception will be caught with whatever is calling validator)
if data:
self.data = convert_to_dict(data)
def complex_get(param_dict, limit, language, format, attachments):
# Tests if value is True or "true"
voidQ = Q(voided=False)
# keep track if a filter other than time or sequence is used
reffilter = False
sinceQ = Q()
if 'since' in param_dict:
sinceQ = Q(stored__gt=convert_to_utc(param_dict['since']))
untilQ = Q()
if 'until' in param_dict:
untilQ = Q(stored__lte=convert_to_utc(param_dict['until']))
# For statements/read/mine oauth scope
authQ = Q()
if 'auth' in param_dict and (param_dict['auth'] and 'statements_mine_only' in param_dict['auth']):
q_auth = param_dict['auth']['agent']
# If oauth - set authority to look for as the user
if q_auth.oauth_identifier:
authQ = Q(authority=q_auth) | Q(authority=q_auth.get_user_from_oauth_group())
# Chain all of user's oauth clients as well
else:
oauth_clients = Agent.objects.filter(member__in=[q_auth])
authQ = Q(authority=q_auth)
for client in oauth_clients:
authQ = authQ | Q(authority=client.get_user_from_oauth_group())
agentQ = Q()
if 'agent' in param_dict:
reffilter = True
agent = None
data = param_dict['agent']
related = 'related_agents' in param_dict and param_dict['related_agents']
if not type(data) is dict:
data = convert_to_dict(data)
try:
agent = Agent.objects.retrieve_or_create(**data)[0]
# If agent is already a group, it can't be part of another group
if agent.objectType == "Group":
groups = []
# Since single agent, return all groups it is in
else:
groups = agent.member.all()
agentQ = Q(actor=agent)
for g in groups:
agentQ = agentQ | Q(actor=g)
if related:
me = chain([agent], groups)
for a in me:
agentQ = agentQ | Q(object_agent=a) | Q(authority=a) \
| Q(context_instructor=a) | Q(context_team=a) \
| Q(object_substatement__actor=a) \
| Q(object_substatement__object_agent=a) \
| Q(object_substatement__context_instructor=a) \
| Q(object_substatement__context_team=a)
except IDNotFoundError:
return[]
verbQ = Q()
if 'verb' in param_dict:
reffilter = True
verbQ = Q(verb__verb_id=param_dict['verb'])
# activity
activityQ = Q()
if 'activity' in param_dict:
reffilter = True
activityQ = Q(object_activity__activity_id=param_dict['activity'])
if 'related_activities' in param_dict and param_dict['related_activities']:
activityQ = activityQ | Q(context_ca_parent__activity_id=param_dict['activity']) \
| Q(context_ca_grouping__activity_id=param_dict['activity']) \
| Q(context_ca_category__activity_id=param_dict['activity']) \
| Q(context_ca_other__activity_id=param_dict['activity']) \
| Q(object_substatement__object_activity__activity_id=param_dict['activity']) \
| Q(object_substatement__context_ca_parent__activity_id=param_dict['activity']) \
| Q(object_substatement__context_ca_grouping__activity_id=param_dict['activity']) \
| Q(object_substatement__context_ca_category__activity_id=param_dict['activity']) \
| Q(object_substatement__context_ca_other__activity_id=param_dict['activity'])
registrationQ = Q()
if 'registration' in param_dict:
reffilter = True
registrationQ = Q(context_registration=param_dict['registration'])
# If want ordered by ascending
stored_param = '-stored'
if 'ascending' in param_dict and param_dict['ascending']:
stored_param = 'stored'
stmtset = Statement.objects.prefetch_related('object_agent','object_activity','object_substatement','object_statementref','actor','verb','context_team','context_instructor','authority').filter(voidQ & untilQ & sinceQ & authQ & agentQ & verbQ & activityQ & registrationQ).distinct()
stmtset = list(stmtset.values_list('statement_id', flat=True))
# only find references when a filter other than
# since, until, or limit was used
if reffilter:
stmtset = stmtset + stmtrefsearch(stmtset)
# Calculate limit of stmts to return
return_limit = set_limit(limit)
# If there are more stmts than the limit, need to break it up and return more id
if len(stmtset) > return_limit:
return initial_cache_return(stmtset, stored_param, return_limit, language, format, attachments)
else:
return create_stmt_result(stmtset, stored_param, language, format)
def complex_get(param_dict, limit, language, format, attachments):
# Tests if value is True or "true"
voidQ = Q(voided=False)
# keep track if a filter other than time or sequence is used
reffilter = False
sinceQ = Q()
if 'since' in param_dict:
sinceQ = Q(stored__gt=convert_to_utc(param_dict['since']))
untilQ = Q()
if 'until' in param_dict:
untilQ = Q(stored__lte=convert_to_utc(param_dict['until']))
# For statements/read/mine oauth scope
authQ = Q()
if 'auth' in param_dict and (param_dict['auth'] and 'statements_mine_only' in param_dict['auth']):
q_auth = param_dict['auth']['authority']
# If oauth - set authority to look for as the user
if q_auth.oauth_identifier:
authQ = Q(authority=q_auth) | Q(authority=q_auth.get_user_from_oauth_group())
# Chain all of user's oauth clients as well
else:
oauth_clients = Agent.objects.filter(member__in=[q_auth])
authQ = Q(authority=q_auth)
for client in oauth_clients:
authQ = authQ | Q(authority=client.get_user_from_oauth_group())
agentQ = Q()
if 'agent' in param_dict:
reffilter = True
agent = None
data = param_dict['agent']
related = 'related_agents' in param_dict and param_dict['related_agents']
if not type(data) is dict:
data = convert_to_dict(data)
try:
agent = Agent.objects.retrieve_or_create(**data)[0]
# If agent is already a group, it can't be part of another group
if agent.objectType == "Group":
groups = []
# Since single agent, return all groups it is in
else:
groups = agent.member.all()
agentQ = Q(actor=agent)
for g in groups:
agentQ = agentQ | Q(actor=g)
if related:
me = chain([agent], groups)
for a in me:
agentQ = agentQ | Q(object_agent=a) | Q(authority=a) \
| Q(context_instructor=a) | Q(context_team=a) \
| Q(object_substatement__actor=a) \
| Q(object_substatement__object_agent=a) \
| Q(object_substatement__context_instructor=a) \
| Q(object_substatement__context_team=a)
except IDNotFoundError:
return[]
verbQ = Q()
if 'verb' in param_dict:
reffilter = True
verbQ = Q(verb__verb_id=param_dict['verb'])
# activity
activityQ = Q()
if 'activity' in param_dict:
reffilter = True
activityQ = Q(object_activity__activity_id=param_dict['activity'])
if 'related_activities' in param_dict and param_dict['related_activities']:
activityQ = activityQ | Q(statementcontextactivity__context_activity__activity_id=param_dict['activity']) \
| Q(object_substatement__object_activity__activity_id=param_dict['activity']) \
| Q(object_substatement__substatementcontextactivity__context_activity__activity_id=param_dict['activity'])
registrationQ = Q()
if 'registration' in param_dict:
reffilter = True
registrationQ = Q(context_registration=param_dict['registration'])
# If want ordered by ascending
stored_param = '-stored'
if 'ascending' in param_dict and param_dict['ascending']:
stored_param = 'stored'
stmtset = Statement.objects.filter(voidQ & untilQ & sinceQ & authQ & agentQ & verbQ & activityQ & registrationQ).distinct()
# only find references when a filter other than
# since, until, or limit was used
if reffilter:
stmtset = findstmtrefs(stmtset, sinceQ, untilQ)
# Calculate limit of stmts to return
return_limit = set_limit(limit)
# If there are more stmts than the limit, need to break it up and return more id
if stmtset.count() > return_limit:
return initial_cache_return(stmtset, stored_param, return_limit, language, format, attachments)
else:
return create_stmt_result(stmtset, stored_param, language, format)
def __init__(self, data=None):
# If incoming is a string, ast eval it (exception will be caught with whatever is calling validator)
if data:
self.data = convert_to_dict(data)
