def mapping():
"""Endpoint for getting mappings for a MusicBrainz entity.
JSON parameters:
mbid: MBID of the entity that you need to find a mapping for.
Returns:
List with mappings to a specified MBID.
"""
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
conn = psycopg2.connect(**current_app.config["PG_INFO"])
cur = conn.cursor()
cur.execute(
"SELECT spotify_uri "
"FROM mapping "
"WHERE is_deleted = FALSE AND mbid = %s", (mbid, ))
response = Response(json.dumps({
"mbid":
mbid,
"mappings": [row[0] for row in cur.fetchall()],
}),
mimetype="application/json")
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def mapping():
"""Endpoint for getting mappings for a MusicBrainz entity.
JSON parameters:
mbid: MBID of the entity that you need to find a mapping for.
Returns:
List with mappings to a specified MBID.
"""
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
conn = psycopg2.connect(current_app.config['PG_CONNECT'])
cur = conn.cursor()
cur.execute("SELECT spotify_uri "
"FROM mapping "
"WHERE is_deleted = FALSE AND mbid = %s",
(mbid,))
response = Response(
json.dumps({
"mbid": mbid,
"mappings": [row[0] for row in cur.fetchall()],
}),
mimetype="application/json"
)
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def add():
"""Endpoint for adding new mappings to Spotify.
Only connection to albums on Spotify is supported right now.
JSON parameters:
user: UUID of the user who is adding new mapping.
mbid: MusicBrainz ID of an entity that is being connected.
spotify_uri: Spotify URI of an album that is being connected.
"""
user = request.json["user"]
if not validate_uuid(user):
raise BadRequest("Incorrect user ID (UUID).")
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
uri = request.json["spotify_uri"]
if not uri.startswith("spotify:album:"):
raise BadRequest(
"Incorrect Spotify URI. Only albums are supported right now.")
conn = psycopg2.connect(**current_app.config["PG_INFO"])
cur = conn.cursor()
try:
# Checking if mapping is already created
cur.execute(
"SELECT id FROM mapping "
"WHERE is_deleted = FALSE "
"AND mbid = %s "
"AND spotify_uri = %s", (mbid, uri))
if not cur.rowcount:
# and if it's not, adding it
cur.execute(
"INSERT INTO mapping (mbid, spotify_uri, cb_user, is_deleted)"
"VALUES (%s, %s, %s, FALSE)", (mbid, uri, user))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
response = Response()
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def add():
"""Endpoint for adding new mappings to Spotify.
Only connection to albums on Spotify is supported right now.
JSON parameters:
user: UUID of the user who is adding new mapping.
mbid: MusicBrainz ID of an entity that is being connected.
spotify_uri: Spotify URI of an album that is being connected.
"""
user = request.json["user"]
if not validate_uuid(user):
raise BadRequest("Incorrect user ID (UUID).")
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
uri = request.json["spotify_uri"]
if not uri.startswith("spotify:album:"):
raise BadRequest("Incorrect Spotify URI. Only albums are supported right now.")
conn = psycopg2.connect(current_app.config['PG_CONNECT'])
cur = conn.cursor()
try:
# Checking if mapping is already created
cur.execute("SELECT id FROM mapping "
"WHERE is_deleted = FALSE "
"AND mbid = %s "
"AND spotify_uri = %s", (mbid, uri))
if not cur.rowcount:
# and if it's not, adding it
cur.execute("INSERT INTO mapping (mbid, spotify_uri, cb_user, is_deleted)"
"VALUES (%s, %s, %s, FALSE)",
(mbid, uri, user))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
response = Response()
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def mapping_jsonp(mbid):
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
conn = psycopg2.connect(current_app.config['PG_CONNECT'])
cur = conn.cursor()
cur.execute("SELECT mbid, spotify_uri "
"FROM mapping "
"WHERE is_deleted = FALSE AND mbid = %s",
(mbid,))
if not cur.rowcount:
return jsonify({})
# TODO: Return all mappings to a specified MBID (don't forget to update userscript).
row = cur.fetchone()
return jsonify({mbid: row[1]})
def mapping_jsonp(mbid):
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
conn = psycopg2.connect(**current_app.config["PG_INFO"])
cur = conn.cursor()
cur.execute(
"SELECT mbid, spotify_uri "
"FROM mapping "
"WHERE is_deleted = FALSE AND mbid = %s", (mbid, ))
if not cur.rowcount:
return jsonify({})
# TODO: Return all mappings to a specified MBID (don't forget to update userscript).
row = cur.fetchone()
return jsonify({mbid: row[1]})
def vote():
"""Endpoint for voting against incorrect mappings.
JSON parameters:
user: UUID of the user who is voting.
mbid: MusicBrainz ID of an entity that has incorrect mapping.
spotify_uri: Spotify URI of an incorrectly mapped entity.
"""
user = request.json["user"]
if not validate_uuid(user):
raise BadRequest("Incorrect user ID (UUID).")
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
spotify_uri = request.json["spotify_uri"]
conn = psycopg2.connect(current_app.config['PG_CONNECT'])
cur = conn.cursor()
try:
cur.execute("SELECT id FROM mapping WHERE mbid = %s AND spotify_uri = %s",
(mbid, spotify_uri))
if not cur.rowcount:
raise BadRequest("Can't find mapping between specified MBID and Spotify URI.")
mapping_id = cur.fetchone()[0]
# Checking if user have already voted
cur.execute("SELECT id FROM mapping_vote WHERE mapping = %s AND cb_user = %s",
(mapping_id, user))
if cur.rowcount:
raise BadRequest("You already voted against this mapping.")
cur.execute("INSERT INTO mapping_vote (mapping, cb_user) VALUES (%s, %s)",
(mapping_id, user))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
# Check if threshold is reached. And if it is, marking mapping as deleted.
try:
cur.execute("SELECT * "
"FROM mapping_vote "
"JOIN mapping ON mapping_vote.mapping = mapping.id "
"WHERE mapping.mbid = %s"
" AND mapping.spotify_uri = %s"
" AND mapping.is_deleted = FALSE",
(mbid, spotify_uri))
if cur.rowcount >= current_app.config["THRESHOLD"]:
cur.execute("UPDATE mapping SET is_deleted = TRUE "
"WHERE mbid = %s AND spotify_uri = %s",
(mbid, spotify_uri))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
response = Response()
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def vote():
"""Endpoint for voting against incorrect mappings.
JSON parameters:
user: UUID of the user who is voting.
mbid: MusicBrainz ID of an entity that has incorrect mapping.
spotify_uri: Spotify URI of an incorrectly mapped entity.
"""
user = request.json["user"]
if not validate_uuid(user):
raise BadRequest("Incorrect user ID (UUID).")
mbid = request.json["mbid"]
if not validate_uuid(mbid):
raise BadRequest("Incorrect MBID (UUID).")
spotify_uri = request.json["spotify_uri"]
conn = psycopg2.connect(**current_app.config["PG_INFO"])
cur = conn.cursor()
try:
cur.execute(
"SELECT id FROM mapping WHERE mbid = %s AND spotify_uri = %s",
(mbid, spotify_uri))
if not cur.rowcount:
raise BadRequest(
"Can't find mapping between specified MBID and Spotify URI.")
mapping_id = cur.fetchone()[0]
# Checking if user have already voted
cur.execute(
"SELECT id FROM mapping_vote WHERE mapping = %s AND cb_user = %s",
(mapping_id, user))
if cur.rowcount:
raise BadRequest("You already voted against this mapping.")
cur.execute(
"INSERT INTO mapping_vote (mapping, cb_user) VALUES (%s, %s)",
(mapping_id, user))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
# Check if threshold is reached. And if it is, marking mapping as deleted.
try:
cur.execute(
"SELECT * "
"FROM mapping_vote "
"JOIN mapping ON mapping_vote.mapping = mapping.id "
"WHERE mapping.mbid = %s"
" AND mapping.spotify_uri = %s"
" AND mapping.is_deleted = FALSE", (mbid, spotify_uri))
if cur.rowcount >= current_app.config["THRESHOLD"]:
cur.execute(
"UPDATE mapping SET is_deleted = TRUE "
"WHERE mbid = %s AND spotify_uri = %s", (mbid, spotify_uri))
conn.commit()
except psycopg2.IntegrityError as e:
raise BadRequest(str(e))
except psycopg2.OperationalError as e:
raise ServiceUnavailable(str(e))
response = Response()
response.headers["Access-Control-Allow-Origin"] = "*"
return response
def test_validate_uuid(self):
self.assertTrue(
utils.validate_uuid("123e4567-e89b-12d3-a456-426655440000"))
self.assertFalse(utils.validate_uuid("not-a-uuid"))
def test_validate_uuid(self):
self.assertTrue(utils.validate_uuid("123e4567-e89b-12d3-a456-426655440000"))
self.assertFalse(utils.validate_uuid("not-a-uuid"))