blueprints.guild: add implementations for more routes

- Pipfile: add Cerberus for data validation
 - blueprints.guilds: add guild_owner_check
 - blueprints.guilds: simplify GUILD_MEMBER_UPDATE dispatch
 - litecord: add schemas.py
 - run: get json of errors

Pipfile

@@ -11,6 +11,7 @@ websockets = "==5.0.1"
 Quart = "==0.6.0"
 Earl-ETF = "==2.1.2"
 logbook = "*"
+Cerberus = "==1.2"
 
 [dev-packages]
 

Pipfile.lock

@@ -1,7 +1,20 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "ee2ebfbf41d6d6fbbb819a835e56ff70fd816601d4df9809b3c135484c8e1801"
+            "sha256": "bb7c65515934e11ebf3b17724f95fb8f1740a9c5aecb9bc2e8802bb54fa43574"
+        },
+        "host-environment-markers": {
+            "implementation_name": "cpython",
+            "implementation_version": "3.6.5",
+            "os_name": "posix",
+            "platform_machine": "x86_64",
+            "platform_python_implementation": "CPython",
+            "platform_release": "4.17.2-1-ARCH",
+            "platform_system": "Linux",
+            "platform_version": "#1 SMP PREEMPT Sat Jun 16 11:08:59 UTC 2018",
+            "python_full_version": "3.6.5",
+            "python_version": "3.6",
+            "sys_platform": "linux"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -17,266 +30,107 @@
     },
     "default": {
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+            "hashes": [],
             "version": "==0.3.2"
         },
         "asyncpg": {
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         "wsproto": {
-            "hashes": [
-                "sha256:02f214f6bb43cda62a511e2e8f1d5fa4703ed83d376d18d042bd2bbf2e995824",
-                "sha256:d2a7f718ab3144ec956a3267d57b5c172f0668827f5803e7d670837b0125b9fa"
-            ],
+            "hashes": [],
             "version": "==0.11.0"
         }
     },

litecord/blueprints/guilds.py

@@ -4,6 +4,7 @@ from ..auth import token_check
 from ..snowflake import get_snowflake
 from ..enums import ChannelType
 from ..errors import Forbidden, GuildNotFound, BadRequest
+from ..schemas import validate, GUILD_UPDATE
 
 bp = Blueprint('guilds', __name__)
 
@@ -20,6 +21,21 @@ async def guild_check(user_id: int, guild_id: int):
         raise GuildNotFound()
 
 
+async def guild_owner_check(user_id: int, guild_id: int):
+    """Check if a user is the owner of the guild."""
+    owner_id = await app.db.fetchval("""
+    SELECT owner_id
+    FROM guilds
+    WHERE guild_id = $1
+    """, guild_id)
+
+    if not owner_id:
+        raise GuildNotFound()
+
+    if user_id != owner_id:
+        raise Forbidden('You are not the owner of the guild')
+
+
 @bp.route('', methods=['POST'])
 async def create_guild():
     user_id = await token_check()
@@ -80,28 +96,82 @@ async def create_guild():
 @bp.route('/<int:guild_id>', methods=['GET'])
 async def get_guild(guild_id):
     user_id = await token_check()
+
     gj = await app.storage.get_guild(guild_id, user_id)
     gj_extra = await app.storage.get_guild_extra(guild_id, user_id, 250)
 
     return jsonify({**gj, **gj_extra})
 
 
+@bp.route('/<int:guild_id>', methods=['UPDATE'])
+async def update_guild(guild_id):
+    user_id = await token_check()
+    await guild_check(user_id, guild_id)
+    j = validate(await request.get_json(), GUILD_UPDATE)
+
+    # TODO: check MANAGE_GUILD
+
+    if 'owner_id' in j:
+        await guild_owner_check(user_id, guild_id)
+
+        await app.db.execute("""
+        UPDATE guilds
+        SET owner_id = $1
+        WHERE guild_id = $2
+        """, int(j['owner_id']), guild_id)
+
+    if 'name' in j:
+        await app.db.execute("""
+        UPDATE guilds
+        SET name = $1
+        WHERE guild_id = $2
+        """, j['name'], guild_id)
+
+    if 'region' in j:
+        # TODO: check region value
+
+        await app.db.execute("""
+        UPDATE guilds
+        SET region = $1
+        WHERE guild_id = $2
+        """, j['region'], guild_id)
+
+    fields = ['verification_level', 'default_message_notifications',
+              'explicit_content_filter', 'afk_timeout']
+
+    for field in [f for f in fields if f in j]:
+        await app.db.execute("""
+        UPDATE guilds
+        SET {field} = $1
+        WHERE guild_id = $2
+        """, j[field], guild_id)
+
+    channel_fields = ['afk_channel_id', 'system_channel_id']
+    for field in [f for f in channel_fields if f in j]:
+        # TODO: check channel link to guild
+
+        await app.db.execute("""
+        UPDATE guilds
+        SET {field} = $1
+        WHERE guild_id = $2
+        """, j[field], guild_id)
+
+    # return guild object
+    gj = await app.storage.get_guild(guild_id, user_id)
+    gj_extra = await app.storage.get_guild_extra(guild_id, user_id, 250)
+
+    gj_total = {**gj, **gj_extra}
+
+    await app.dispatcher.dispatch_guild(guild_id, 'GUILD_UPDATE', gj_total)
+
+    return jsonify({**gj, **gj_extra})
+
+
 @bp.route('/<int:guild_id>', methods=['DELETE'])
 async def delete_guild(guild_id):
     """Delete a guild."""
     user_id = await token_check()
-
-    owner_id = await app.db.fetchval("""
-    SELECT owner_id
-    FROM guilds
-    WHERE guild_id = $1
-    """, guild_id)
-
-    if not owner_id:
-        raise GuildNotFound()
-
-    if user_id != owner_id:
-        raise Forbidden('You are not the owner of the guild')
+    await guild_owner_check(user_id, guild_id)
 
     await app.db.execute("""
     DELETE FROM guild
@@ -188,6 +258,17 @@ async def create_channel(guild_id):
     return jsonify(channel)
 
 
+@bp.route('/<int:guild_id>/channels', methods=['PATCH'])
+async def modify_channel_pos(guild_id):
+    user_id = await token_check()
+    await guild_check(user_id, guild_id)
+    await request.get_json()
+
+    # TODO: this route
+
+    raise NotImplementedError
+
+
 @bp.route('/<int:guild_id>/members/<int:member_id>', methods=['GET'])
 async def get_guild_member(guild_id, member_id):
     user_id = await token_check()
@@ -221,6 +302,52 @@ async def get_members(guild_id):
     return jsonify(members)
 
 
+@bp.route('/<int:guild_id>/members/<int:member_id>', methods=['PATCH'])
+async def modify_guild_member(guild_id, member_id):
+    j = await request.get_json()
+
+    if 'nick' in j:
+        # TODO: check MANAGE_NICKNAMES
+
+        await app.db.execute("""
+        UPDATE members
+        SET nickname = $1
+        WHERE user_id = $2 AND guild_id = $3
+        """, j['nick'], member_id, guild_id)
+
+    if 'mute' in j:
+        # TODO: check MUTE_MEMBERS
+
+        await app.db.execute("""
+        UPDATE members
+        SET muted = $1
+        WHERE user_id = $2 AND guild_id = $3
+        """, j['mute'], member_id, guild_id)
+
+    if 'deaf' in j:
+        # TODO: check DEAFEN_MEMBERS
+
+        await app.db.execute("""
+        UPDATE members
+        SET deafened = $1
+        WHERE user_id = $2 AND guild_id = $3
+        """, j['deaf'], member_id, guild_id)
+
+    if 'channel_id' in j:
+        # TODO: check MOVE_MEMBERS
+        # TODO: change the member's voice channel
+        pass
+
+    member = await app.storage.get_member_data_one(guild_id, member_id)
+    member.pop('joined_at')
+
+    await app.dispatcher.dispatch_guild(guild_id, 'GUILD_MEMBER_UPDATE', {**{
+        'guild_id': str(guild_id)
+    }, **member})
+
+    return '', 204
+
+
 @bp.route('/<int:guild_id>/members/@me/nick', methods=['PATCH'])
 async def update_nickname(guild_id):
     user_id = await token_check()
@@ -234,17 +361,11 @@ async def update_nickname(guild_id):
     WHERE user_id = $2 AND guild_id = $3
     """, j['nick'], user_id, guild_id)
 
-    roles = await app.db.fetch("""
-    SELECT role_id
-    FROM member_roles
-    WHERE user_id = $1 AND guild_id = $2
-    """, user_id, guild_id)
+    member = await app.storage.get_member_data_one(guild_id, user_id)
+    member.pop('joined_at')
 
-    await app.dispatcher.dispatch_guild(guild_id, 'GUILD_MEMBER_UPDATE', {
-        'guild_id': str(guild_id),
-        'roles': list(map(str, roles)),
-        'user': await app.storage.get_user(user_id),
-        'nick': j['nick'],
-    })
+    await app.dispatcher.dispatch_guild(guild_id, 'GUILD_MEMBER_UPDATE', {**{
+        'guild_id': str(guild_id)
+    }, **member})
 
     return j['nick']

litecord/errors.py

@@ -5,6 +5,10 @@ class LitecordError(Exception):
     def message(self):
         return self.args[0]
 
+    @property
+    def json(self):
+        return self.args[1]
+
 
 class BadRequest(LitecordError):
     status_code = 400

litecord/schemas.py

@@ -0,0 +1,63 @@
+import re
+
+from cerberus import Validator
+
+from .errors import BadRequest
+
+USERNAME_REGEX = re.compile(r'^[a-zA-Z0-9_]{2,19}$', re.A)
+EMAIL_REGEX = re.compile(r'^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$',
+                         re.A)
+
+class LitecordValidator(Validator):
+    def _validate_type_username(self, value: str) -> bool:
+        """Validate against the username regex."""
+        return bool(USERNAME_REGEX.match(value))
+
+
+def validate(reqjson, schema):
+    validator = LitecordValidator(schema)
+    if not validator.validate(reqjson):
+        errs = validator.errors
+
+        raise BadRequest('bad payload', errs)
+
+    return reqjson
+
+
+GUILD_UPDATE = {
+    'name': {
+        'type': 'string',
+        'minlength': 2,
+        'maxlength': 100,
+        'required': False
+    },
+    'region': {'type': 'voice_region', 'required': False},
+    'icon': {'type': 'icon', 'required': False},
+
+    'verification_level': {'type': 'verification_level', 'required': False},
+    'default_message_notifications': {
+        'type': 'msg_notifications',
+        'required': False,
+    },
+    'explicit_content_filter': {'type': 'explicit_content', 'required': False},
+
+    'afk_channel_id': {'type': 'snowflake', 'required': False},
+    'afk_timeout': {'type': 'number', 'required': False},
+
+    'owner_id': {'type': 'snowflake', 'required': False},
+
+    'system_channel_id': {'type': 'snowflake', 'required': False},
+}
+
+
+MEMBER_UPDATE = {
+    'nick': {
+        'type': 'nickname',
+        'minlength': 1, 'maxlength': 100,
+        'required': False,
+    },
+    'roles': {'type': 'list', 'required': False},
+    'mute': {'type': 'bool', 'required': False},
+    'deaf': {'type': 'bool', 'required': False},
+    'channel_id': {'type': 'snowflake', 'required': False},
+}

run.py

@@ -76,12 +76,17 @@ async def app_after_serving():
 
 @app.errorhandler(LitecordError)
 async def handle_litecord_err(err):
-    return jsonify({
+    try:
+        ejson = err.json
+    except IndexError:
+        ejson = {}
+
+    return jsonify({**{
         'error': True,
         # 'code': err.code,
         'status': err.status_code,
         'message': err.message,
-    }), err.status_code
+    }, **ejson}), err.status_code
 
 
 @app.errorhandler(500)