Reintegrate lexicon routes and joining

amanuensis/backend/__init__.py

@@ -0,0 +1,9 @@
+import amanuensis.backend.article as artiq
+import amanuensis.backend.character as charq
+import amanuensis.backend.index as indq
+import amanuensis.backend.lexicon as lexiq
+import amanuensis.backend.membership as memq
+import amanuensis.backend.post as postq
+import amanuensis.backend.user as userq
+
+__all__ = ["artiq", "charq", "indq", "lexiq", "memq", "postq", "userq"]

amanuensis/backend/article.py

@@ -7,7 +7,7 @@ from typing import Optional
 from sqlalchemy import select
 
 from amanuensis.db import *
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def create(
@@ -21,11 +21,11 @@ def create(
     """
     # Verify argument types are correct
     if not isinstance(lexicon_id, int):
-        raise ArgumentError("lexicon_id")
+        raise BackendArgumentTypeError(int, lexicon_id=lexicon_id)
     if not isinstance(user_id, int):
-        raise ArgumentError("user_id")
+        raise BackendArgumentTypeError(int, user_id=user_id)
     if character_id is not None and not isinstance(character_id, int):
-        raise ArgumentError("character_id")
+        raise BackendArgumentTypeError(int, character_id=character_id)
 
     # Check that the user is a member of this lexicon
     mem: Membership = db(

amanuensis/backend/character.py

@@ -7,7 +7,7 @@ from typing import Optional
 from sqlalchemy import select, func
 
 from amanuensis.db import *
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def create(
@@ -22,13 +22,13 @@ def create(
     """
     # Verify argument types are correct
     if not isinstance(lexicon_id, int):
-        raise ArgumentError("lexicon_id")
+        raise BackendArgumentTypeError(int, lexicon_id=lexicon_id)
     if not isinstance(user_id, int):
-        raise ArgumentError("user_id")
+        raise BackendArgumentTypeError(int, user_id=user_id)
     if not isinstance(name, str):
-        raise ArgumentError("name")
+        raise BackendArgumentTypeError(str, name=name)
     if signature is not None and not isinstance(signature, str):
-        raise ArgumentError("signature")
+        raise BackendArgumentTypeError(str, signature=signature)
 
     # Verify character name is valid
     if not name.strip():

amanuensis/backend/index.py

@@ -6,7 +6,7 @@ import re
 from typing import Optional
 
 from amanuensis.db import DbContext, ArticleIndex, IndexType
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def create(
@@ -23,17 +23,17 @@ def create(
     """
     # Verify argument types are correct
     if not isinstance(lexicon_id, int):
-        raise ArgumentError("lexicon_id")
+        raise BackendArgumentTypeError(int, lexicon_id=lexicon_id)
     if not isinstance(index_type, IndexType):
-        raise ArgumentError("index_type")
+        raise BackendArgumentTypeError(IndexType, index_type=index_type)
     if not isinstance(pattern, str):
-        raise ArgumentError("pattern")
+        raise BackendArgumentTypeError(str, pattern=pattern)
     if not isinstance(logical_order, int):
-        raise ArgumentError("logical_order")
+        raise BackendArgumentTypeError(int, logical_order=logical_order)
     if not isinstance(display_order, int):
-        raise ArgumentError("display_order")
+        raise BackendArgumentTypeError(int, display_order=display_order)
     if capacity is not None and not isinstance(capacity, int):
-        raise ArgumentError("capacity")
+        raise BackendArgumentTypeError(int, capacity=capacity)
 
     # Verify the pattern is valid for the index type:
     if index_type == IndexType.CHAR:

amanuensis/backend/lexicon.py

@@ -5,10 +5,11 @@ Lexicon query interface
 import re
 from typing import Sequence, Optional
 
-from sqlalchemy import select, func
+from sqlalchemy import select, func, update
+from werkzeug.security import generate_password_hash, check_password_hash
 
 from amanuensis.db import DbContext, Lexicon, Membership
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 RE_ALPHANUM_DASH_UNDER = re.compile(r"^[A-Za-z0-9-_]*$")
@@ -25,7 +26,7 @@ def create(
     """
     # Verify name
     if not isinstance(name, str):
-        raise ArgumentError("Lexicon name must be a string")
+        raise BackendArgumentTypeError(str, name=name)
     if not name.strip():
         raise ArgumentError("Lexicon name must not be blank")
     if not RE_ALPHANUM_DASH_UNDER.match(name):
@@ -34,12 +35,12 @@ def create(
         )
 
     # Verify title
-    if title is not None and not isinstance(name, str):
-        raise ArgumentError("Lexicon name must be a string")
+    if title is not None and not isinstance(title, str):
+        raise BackendArgumentTypeError(str, title=title)
 
     # Verify prompt
     if not isinstance(prompt, str):
-        raise ArgumentError("Lexicon prompt must be a string")
+        raise BackendArgumentTypeError(str, prompt=prompt)
 
     # Query the db to make sure the lexicon name isn't taken
     if db(select(func.count(Lexicon.id)).where(Lexicon.name == name)).scalar() > 0:
@@ -55,11 +56,6 @@ def create(
     return new_lexicon
 
 
-def from_name(db: DbContext, name: str) -> Lexicon:
-    """Get a lexicon by its name."""
-    return db(select(Lexicon).where(Lexicon.name == name)).scalar_one()
-
-
 def get_all(db: DbContext) -> Sequence[Lexicon]:
     """Get all lexicons."""
     return db(select(Lexicon)).scalars()
@@ -75,3 +71,23 @@ def get_joined(db: DbContext, user_id: int) -> Sequence[Lexicon]:
 def get_public(db: DbContext) -> Sequence[Lexicon]:
     """Get all publicly visible lexicons."""
     return db(select(Lexicon).where(Lexicon.public == True)).scalars()
+
+
+def password_check(db: DbContext, lexicon_id: int, password: str) -> bool:
+    """Check if a password is correct."""
+    password_hash: str = db(
+        select(Lexicon.join_password).where(Lexicon.id == lexicon_id)
+    ).scalar_one()
+    return check_password_hash(password_hash, password)
+
+
+def password_set(db: DbContext, lexicon_id: int, new_password: Optional[str]) -> None:
+    """Set or clear a lexicon's password."""
+    password_hash = generate_password_hash(new_password) if new_password else None
+    db(update(Lexicon).where(Lexicon.id == lexicon_id).values(password=password_hash))
+    db.session.commit()
+
+
+def try_from_name(db: DbContext, name: str) -> Optional[Lexicon]:
+    """Get a lexicon by its name, or None if no such lexicon was found."""
+    return db(select(Lexicon).where(Lexicon.name == name)).scalar_one_or_none()

amanuensis/backend/membership.py

@@ -6,7 +6,7 @@ from sqlalchemy import select, func
 
 from amanuensis.db import DbContext, Membership
 from amanuensis.db.models import Lexicon
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def create(
@@ -20,11 +20,11 @@ def create(
     """
     # Verify argument types are correct
     if not isinstance(user_id, int):
-        raise ArgumentError("user_id")
+        raise BackendArgumentTypeError(int, user_id=user_id)
     if not isinstance(lexicon_id, int):
-        raise ArgumentError("lexicon_id")
+        raise BackendArgumentTypeError(int, lexicon_id=lexicon_id)
     if not isinstance(is_editor, bool):
-        raise ArgumentError("is_editor")
+        raise BackendArgumentTypeError(bool, is_editor=is_editor)
 
     # Verify user has not already joined lexicon
     if (
@@ -64,3 +64,12 @@ def create(
     db.session.add(new_membership)
     db.session.commit()
     return new_membership
+
+
+def try_from_ids(db: DbContext, user_id: int, lexicon_id: int) -> Membership:
+    """Get a membership by the user and lexicon ids, or None if no such membership was found."""
+    return db(
+        select(Membership)
+        .where(Membership.user_id == user_id)
+        .where(Membership.lexicon_id == lexicon_id)
+    ).scalar_one_or_none()

amanuensis/backend/post.py

@@ -8,7 +8,7 @@ from sqlalchemy import select
 
 from amanuensis.db import DbContext, Post
 from amanuensis.db.models import Lexicon
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def create(
@@ -23,15 +23,15 @@ def create(
 
     # Verify lexicon id
     if not isinstance(lexicon_id, int):
-        raise ArgumentError("Lexicon id must be an integer.")
+        raise BackendArgumentTypeError(int, lexicon_id=lexicon_id)
 
     # Verify user_id
-    if not (isinstance(user_id, int) or user_id is None):
-        raise ArgumentError("User id must be an integer.")
+    if user_id is not None and not isinstance(user_id, int):
+        raise BackendArgumentTypeError(int, user_id=user_id)
 
     # Verify body
     if not isinstance(body, str):
-        raise ArgumentError("Post body must be a string.")
+        raise BackendArgumentTypeError(str, body=body)
     if not body.strip():
         raise ArgumentError("Post body cannot be empty.")
 

amanuensis/backend/user.py

@@ -10,7 +10,7 @@ from sqlalchemy import select, func, update
 from werkzeug.security import generate_password_hash, check_password_hash
 
 from amanuensis.db import DbContext, User
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 RE_NO_LETTERS = re.compile(r"^[0-9-_]*$")
@@ -30,7 +30,7 @@ def create(
     """
     # Verify username
     if not isinstance(username, str):
-        raise ArgumentError("Username must be a string")
+        raise BackendArgumentTypeError(str, username=username)
     if len(username) < 3 or len(username) > 32:
         raise ArgumentError("Username must be between 3 and 32 characters")
     if RE_NO_LETTERS.match(username):
@@ -42,18 +42,18 @@ def create(
 
     # Verify password
     if not isinstance(password, str):
-        raise ArgumentError("Password must be a string")
+        raise BackendArgumentTypeError(str, password=password)
 
     # Verify display name
     if display_name is not None and not isinstance(display_name, str):
-        raise ArgumentError("Display name must be a string")
+        raise BackendArgumentTypeError(str, display_name=display_name)
     # If display name is not provided, use the username
     if not display_name or not display_name.strip():
         display_name = username
 
     # Verify email
     if not isinstance(email, str):
-        raise ArgumentError("Email must be a string")
+        raise BackendArgumentTypeError(str, email=email)
 
     # Query the db to make sure the username isn't taken
     if db(select(func.count(User.id)).where(User.username == username)).scalar() > 0:
@@ -71,36 +71,11 @@ def create(
     return new_user
 
 
-def from_id(db: DbContext, user_id: int) -> Optional[User]:
-    """
-    Get a user by the user's id.
-    Returns None if no user was found.
-    """
-    user: User = db(select(User).where(User.id == user_id)).scalar_one_or_none()
-    return user
-
-
-def from_username(db: DbContext, username: str) -> Optional[User]:
-    """
-    Get a user by the user's username.
-    Returns None if no user was found.
-    """
-    user: User = db(select(User).where(User.username == username)).scalar_one_or_none()
-    return user
-
-
 def get_all(db: DbContext) -> Sequence[User]:
     """Get all users."""
     return db(select(User)).scalars()
 
 
-def password_set(db: DbContext, username: str, new_password: str) -> None:
-    """Set a user's password."""
-    password_hash = generate_password_hash(new_password)
-    db(update(User).where(User.username == username).values(password=password_hash))
-    db.session.commit()
-
-
 def password_check(db: DbContext, username: str, password: str) -> bool:
     """Check if a password is correct."""
     user_password_hash: str = db(
@@ -109,6 +84,23 @@ def password_check(db: DbContext, username: str, password: str) -> bool:
     return check_password_hash(user_password_hash, password)
 
 
+def password_set(db: DbContext, username: str, new_password: str) -> None:
+    """Set a user's password."""
+    password_hash = generate_password_hash(new_password)
+    db(update(User).where(User.username == username).values(password=password_hash))
+    db.session.commit()
+
+
+def try_from_id(db: DbContext, user_id: int) -> Optional[User]:
+    """Get a user by the user's id, or None is no such user was found."""
+    return db(select(User).where(User.id == user_id)).scalar_one_or_none()
+
+
+def try_from_username(db: DbContext, username: str) -> Optional[User]:
+    """Get a user by the user's username, or None is no such user was found."""
+    return db(select(User).where(User.username == username)).scalar_one_or_none()
+
+
 def update_logged_in(db: DbContext, username: str) -> None:
     """Bump the value of the last_login column for a user."""
     db(

amanuensis/cli/lexicon.py

@@ -2,9 +2,7 @@ import logging
 
 from sqlalchemy import update
 
-import amanuensis.backend.lexicon as lexiq
-import amanuensis.backend.membership as memq
-import amanuensis.backend.user as userq
+from amanuensis.backend import lexiq, memq, userq
 from amanuensis.db import DbContext, Lexicon
 
 from .helpers import add_argument
@@ -24,9 +22,12 @@ def command_add(args) -> int:
     Add a user to a lexicon.
     """
     db: DbContext = args.get_db()
-    lexicon = lexiq.from_name(db, args.lexicon)
-    user = userq.from_username(db, args.user)
-    assert user is not None
+    lexicon = lexiq.try_from_name(db, args.lexicon)
+    if not lexicon:
+        raise ValueError("Lexicon does not exist")
+    user = userq.try_from_username(db, args.user)
+    if not user:
+        raise ValueError("User does not exist")
     memq.create(db, user.id, lexicon.id, args.editor)
     LOG.info(f"Added {args.user} to lexicon {args.lexicon}")
     return 0

amanuensis/cli/user.py

@@ -1,7 +1,7 @@
 import logging
 from typing import Optional
 
-import amanuensis.backend.user as userq
+from amanuensis.backend import userq
 from amanuensis.db import DbContext, User
 
 from .helpers import add_argument
@@ -29,7 +29,7 @@ def command_create(args) -> int:
 def command_promote(args) -> int:
     """Make a user a site admin."""
     db: DbContext = args.get_db()
-    user: Optional[User] = userq.from_username(db, args.username)
+    user: Optional[User] = userq.try_from_username(db, args.username)
     if user is None:
         args.parser.error("User not found")
         return -1
@@ -46,7 +46,7 @@ def command_promote(args) -> int:
 def command_demote(args):
     """Revoke a user's site admin status."""
     db: DbContext = args.get_db()
-    user: Optional[User] = userq.from_username(db, args.username)
+    user: Optional[User] = userq.try_from_username(db, args.username)
     if user is None:
         args.parser.error("User not found")
         return -1

amanuensis/errors.py

@@ -4,8 +4,21 @@ Submodule of custom exception types
 
 
 class AmanuensisError(Exception):
-    """Base class for exceptions in amanuensis"""
+    """Base class for exceptions in Amanuensis"""
 
 
 class ArgumentError(AmanuensisError):
-    """An internal call was made with invalid arguments"""
+    """An internal call was made with invalid arguments."""
+
+
+class BackendArgumentTypeError(ArgumentError):
+    """
+    A call to a backend function was made with a value of an invalid type for the parameter.
+    Specify the invalid parameter and value as a kwarg.
+    """
+    def __init__(self, obj_type, **kwarg):
+        if not kwarg:
+            raise ValueError("Missing kwarg")
+        param, value = next(iter(kwarg.items()))
+        msg = f"Expected {param} of type {obj_type}, got {type(value)}"
+        super().__init__(msg)

amanuensis/lexicon/setup.py

@@ -11,58 +11,6 @@ from amanuensis.models import LexiconModel, UserModel
 from amanuensis.resources import get_stream
 
 
-def player_can_join_lexicon(
-	player: UserModel,
-	lexicon: LexiconModel,
-	password: str = None) -> bool:
-	"""
-	Checks whether the given player can join a lexicon
-	"""
-	# Trivial failures
-	if lexicon is None:
-		return False
-	if player is None:
-		return False
-	# Can't join if already in the game
-	if player.uid in lexicon.cfg.join.joined:
-		return False
-	# Can't join if the game is closed
-	if not lexicon.cfg.join.open:
-		return False
-	# Can't join if there's no room left
-	if len(lexicon.cfg.join.joined) >= lexicon.cfg.join.max_players:
-		return False
-	# Can't join if the password doesn't check out
-	if (lexicon.cfg.join.password is not None
-		and lexicon.cfg.join.password != password):
-		return False
-	return True
-
-
-def add_player_to_lexicon(
-	player: UserModel,
-	lexicon: LexiconModel) -> None:
-	"""
-	Unconditionally adds a player to a lexicon
-	"""
-	# Verify arguments
-	if lexicon is None:
-		raise ArgumentError(f'Invalid lexicon: {lexicon}')
-	if player is None:
-		raise ArgumentError(f'Invalid player: {player}')
-
-	# Idempotently add player
-	added = False
-	with lexicon.ctx.edit_config() as cfg:
-		if player.uid not in cfg.join.joined:
-			cfg.join.joined.append(player.uid)
-			added = True
-
-	# Log to the lexicon's log
-	if added:
-		lexicon.log('Player "{0.cfg.username}" joined ({0.uid})'.format(player))
-
-
 def player_can_create_character(
 	player: UserModel,
 	lexicon: LexiconModel,

amanuensis/server/__init__.py

@@ -2,14 +2,32 @@ from datetime import datetime, timezone
 import json
 import os
 
-from flask import Flask, g
+from flask import Flask, g, url_for, redirect
 
-import amanuensis.backend.lexicon
-import amanuensis.backend.user
+from amanuensis.backend import lexiq, userq, memq
 from amanuensis.config import AmanuensisConfig, CommandLineConfig
 from amanuensis.db import DbContext
+from amanuensis.parser import filesafe_title
 import amanuensis.server.auth as auth
 import amanuensis.server.home as home
+import amanuensis.server.lexicon as lexicon
+
+
+def date_format(dt: datetime, formatstr="%Y-%m-%d %H:%M:%S%z") -> str:
+    """Convert datetime to human-readable string"""
+    if dt is None:
+        return "never"
+    # Cast db time to UTC, then convert to local timezone
+    adjusted = dt.replace(tzinfo=timezone.utc).astimezone()
+    return adjusted.strftime(formatstr)
+
+
+def article_link(title):
+    """Get the url for a lexicon by its title"""
+    return url_for(
+        'lexicon.article',
+        name=g.lexicon.name,
+        title=filesafe_title(title))
 
 
 def get_app(
@@ -49,20 +67,12 @@ def get_app(
     app.teardown_appcontext(db_teardown)
 
     # Configure jinja options
-    app.jinja_options.update(trim_blocks=True, lstrip_blocks=True)
-
-    def date_format(dt: datetime, formatstr="%Y-%m-%d %H:%M:%S%z") -> str:
-        if dt is None:
-            return "never"
-        # Cast db time to UTC, then convert to local timezone
-        adjusted = dt.replace(tzinfo=timezone.utc).astimezone()
-        return adjusted.strftime(formatstr)
-
-    app.template_filter("date")(date_format)
-
     def include_backend():
-        return {"db": db, "lexiq": amanuensis.backend.lexicon, "userq": amanuensis.backend.user}
+        return {"db": db, "lexiq": lexiq, "userq": userq, "memq": memq}
 
+    app.jinja_options.update(trim_blocks=True, lstrip_blocks=True)
+    app.template_filter("date")(date_format)
+    app.template_filter("articlelink")(article_link)
     app.context_processor(include_backend)
 
     # Set up Flask-Login
@@ -71,11 +81,13 @@ def get_app(
     # Register blueprints
     app.register_blueprint(auth.bp)
     app.register_blueprint(home.bp)
+    app.register_blueprint(lexicon.bp)
 
-    def test():
-        return "Hello, world!"
+    # Add a root redirect
+    def root():
+        return redirect(url_for("home.home"))
 
-    app.route("/")(test)
+    app.route("/")(root)
 
     return app
 

amanuensis/server/auth/__init__.py

@@ -17,7 +17,7 @@ from flask_login import (
     LoginManager,
 )
 
-import amanuensis.backend.user as userq
+from amanuensis.backend import userq
 from amanuensis.db import User
 
 from .forms import LoginForm
@@ -39,7 +39,7 @@ def get_login_manager() -> LoginManager:
             user_id = int(user_id_str)
         except:
             return None
-        return userq.from_id(g.db, user_id)
+        return userq.try_from_id(g.db, user_id)
 
     login_manager.user_loader(load_user)
 
@@ -58,7 +58,7 @@ def login():
     # POST with valid data
     username: str = form.username.data
     password: str = form.password.data
-    user: User = userq.from_username(g.db, username)
+    user: User = userq.try_from_username(g.db, username)
     if not user or not userq.password_check(g.db, username, password):
         # Bad creds
         flash("Login not recognized")

amanuensis/server/helpers.py

@@ -1,107 +1,95 @@
-# Standard library imports
-from datetime import datetime
 from functools import wraps
+from typing import Optional
 
-# Third party imports
-from flask import g, flash, redirect, url_for, current_app
+from flask import g, flash, redirect, url_for
 from flask_login import current_user
 
-# Module imports
-from amanuensis.parser import filesafe_title
-from amanuensis.models import ModelFactory, UserModel, LexiconModel
-
-
-def register_custom_filters(app):
-	"""Adds custom filters to the Flask app"""
-
-	@app.template_filter("user_attr")
-	def get_user_attr(uid, attr):
-		factory: ModelFactory = current_app.config['model_factory']
-		user: UserModel = factory.user(uid)
-		val = getattr(user.cfg, attr)
-		return val
-
-	@app.template_filter("articlelink")
-	def article_link(title):
-		return url_for(
-			'lexicon.article',
-			name=g.lexicon.cfg.name,
-			title=filesafe_title(title))
-
-	@app.context_processor
-	def lexicon_status():
-		return dict(
-			PREGAME=LexiconModel.PREGAME,
-			ONGOING=LexiconModel.ONGOING,
-			COMPLETE=LexiconModel.COMPLETE)
+from amanuensis.backend import lexiq, memq
+from amanuensis.db import DbContext, Lexicon, User, Membership
 
 
 def lexicon_param(route):
-	"""Wrapper for loading a route's lexicon"""
-	@wraps(route)
-	def with_lexicon(**kwargs):
-		name = kwargs.get('name')
-		model_factory: ModelFactory = current_app.config['model_factory']
-		g.lexicon = model_factory.lexicon(name)
-		if g.lexicon is None:
-			flash(f'Couldn\'t find a lexicon with the name "{name}"')
-			return redirect(url_for("home.home"))
-		return route(**kwargs)
-	return with_lexicon
+    """
+    Wrapper for loading a route's lexicon to `g`.
+    This decorator should be applied above any other decorators that reference `g.lexicon`.
+    """
+    @wraps(route)
+    def with_lexicon(*args, **kwargs):
+        db: DbContext = g.db
+        name: str = kwargs.get('name')
+        lexicon: Optional[Lexicon] = lexiq.try_from_name(db, name)
+        if lexicon is None:
+            flash(f"Couldn't find a lexicon with the name \"{name}\"")
+            return redirect(url_for("home.home"))
+        g.lexicon = lexicon
+        return route(*args, **kwargs)
+    return with_lexicon
 
 
 def admin_required(route):
-	"""
-	Requires the user to be an admin to load this page
-	"""
-	@wraps(route)
-	def admin_route(*args, **kwargs):
-		if not current_user.cfg.is_admin:
-			flash("You must be an admin to view this page")
-			return redirect(url_for('home.home'))
-		return route(*args, **kwargs)
-	return admin_route
+    """
+    Restricts a route to users who are site admins.
+    """
+    @wraps(route)
+    def admin_route(*args, **kwargs):
+        user: User = current_user
+        if not user.is_site_admin:
+            flash("You must be an admin to view this page")
+            return redirect(url_for('home.home'))
+        return route(*args, **kwargs)
+    return admin_route
 
 
 def player_required(route):
-	"""
-	Requires the user to be a player in the lexicon to load this page
-	"""
-	@wraps(route)
-	def player_route(*args, **kwargs):
-		if current_user.uid not in g.lexicon.cfg.join.joined:
-			flash("You must be a player to view this page")
-			return (redirect(url_for('lexicon.contents', name=g.lexicon.cfg.name))
-				if g.lexicon.cfg.join.public
-				else redirect(url_for('home.home')))
-		return route(*args, **kwargs)
-	return player_route
+    """
+    Restricts a route to users who are players in the current lexicon.
+    """
+    @wraps(route)
+    def player_route(*args, **kwargs):
+        db: DbContext = g.db
+        user: User = current_user
+        lexicon: Lexicon = g.lexicon
+        mem: Optional[Membership] = memq.try_from_ids(db, user.id, lexicon.id)
+        if not mem:
+            flash("You must be a player to view this page")
+            if lexicon.public:
+                return redirect(url_for('lexicon.contents', name=lexicon.name))
+            else:
+                return redirect(url_for('home.home'))
+        return route(*args, **kwargs)
+    return player_route
 
 
 def player_required_if_not_public(route):
-	"""
-	Requires the user to be a player in the lexicon to load this page if the
-	lexicon has join.public = false
-	"""
-	@wraps(route)
-	def player_route(*args, **kwargs):
-		if ((not g.lexicon.cfg.join.public)
-				and current_user.uid not in g.lexicon.cfg.join.joined):
-			flash("You must be a player to view this page")
-			return redirect(url_for('home.home'))
-		return route(*args, **kwargs)
-	return player_route
+    """
+    Restricts a route to users who are players in the current lexicon if the lexicon is nonpublic.
+    """
+    @wraps(route)
+    def player_route(*args, **kwargs):
+        db: DbContext = g.db
+        user: User = current_user
+        lexicon: Lexicon = g.lexicon
+        if not lexicon.public:
+            mem: Optional[Membership] = memq.try_from_ids(db, user.id, lexicon.id)
+            if not mem:
+                flash("You must be a player to view this page")
+                return redirect(url_for('home.home'))
+        return route(*args, **kwargs)
+    return player_route
 
 
 def editor_required(route):
-	"""
-	Requires the user to be the editor of the current lexicon to load this
-	page
-	"""
-	@wraps(route)
-	def editor_route(*args, **kwargs):
-		if current_user.uid != g.lexicon.cfg.editor:
-			flash("You must be the editor to view this page")
-			return redirect(url_for('lexicon.contents', name=g.lexicon.cfg.name))
-		return route(*args, **kwargs)
-	return editor_route
+    """
+    Restricts a route to users who are editors of the current lexicon.
+    """
+    @wraps(route)
+    def editor_route(*args, **kwargs):
+        db: DbContext = g.db
+        user: User = current_user
+        lexicon: Lexicon = g.lexicon
+        mem: Optional[Membership] = memq.try_from_ids(db, user.id, lexicon.id)
+        if not mem.is_editor:
+            flash("You must be the editor to view this page")
+            return redirect(url_for('lexicon.contents', name=lexicon.name))
+        return route(*args, **kwargs)
+    return editor_route

amanuensis/server/home/__init__.py

@@ -1,7 +1,6 @@
 from flask import Blueprint, render_template, g
 
-import amanuensis.backend.user as userq
-import amanuensis.backend.lexicon as lexiq
+from amanuensis.backend import userq, lexiq
 
 # from .forms import LexiconCreateForm
 

amanuensis/server/lexicon.jinja

@@ -1,44 +1,44 @@
 {% extends "page_2col.jinja" %}
-{% set lexicon_title = g.lexicon.title %}
+{% set lexicon_title = g.lexicon.full_title %}
 
 {% block header %}
 <h2>{{ lexicon_title }}</h2>
-<p><i>{{ g.lexicon.cfg.prompt }}</i></p>
+<p><i>{{ g.lexicon.prompt }}</i></p>
 {% endblock %}
 
 {% block sb_logo %}{% endblock %}
 {% block sb_home %}<a href="{{ url_for('home.home') }}">Home</a>
 {% endblock %}
 {% block sb_contents %}<a 
-	{% if current_page == "contents" %}class="current-page"
-	{% else %}href="{{ url_for('lexicon.contents', name=g.lexicon.cfg.name) }}"
-	{% endif %}>Contents</a>{% endblock %}
+    {% if current_page == "contents" %}class="current-page"
+    {% else %}href="{{ url_for('lexicon.contents', name=g.lexicon.name) }}"
+    {% endif %}>Contents</a>{% endblock %}
 {% block sb_rules %}<a 
-	{% if current_page == "rules" %}class="current-page"
-	{% else %}href="{{ url_for('lexicon.rules', name=g.lexicon.cfg.name) }}"
-	{% endif %}>Rules</a>{% endblock %}
+    {% if current_page == "rules" %}class="current-page"
+    {% else %}href="{{ url_for('lexicon.rules', name=g.lexicon.name) }}"
+    {% endif %}>Rules</a>{% endblock %}
 {% block sb_session %}<a 
-	{% if current_page == "session" %}class="current-page"
-	{% else %}href="{{ url_for('session.session', name=g.lexicon.cfg.name) }}"
-	{% endif %}>Session</a>{% endblock %}
+    {% if current_page == "session" %}class="current-page"
+    {% else %}href="#{#{ url_for('session.session', name=g.lexicon.name) }#}"
+    {% endif %}>Session</a>{% endblock %}
 {% block sb_stats %}<a 
-	{% if current_page == "statistics" %}class="current-page"
-	{% else %}href="{{ url_for('lexicon.stats', name=g.lexicon.cfg.name) }}"
-	{% endif %}>Statistics</a>{% endblock %}
+    {% if current_page == "statistics" %}class="current-page"
+    {% else %}href="{{ url_for('lexicon.stats', name=g.lexicon.name) }}"
+    {% endif %}>Statistics</a>{% endblock %}
 
-{% if current_user.uid in g.lexicon.cfg.join.joined %}
-	{# self.sb_logo(), #}
+{% if current_user.is_authenticated and memq.try_from_ids(g.db, current_user.id, g.lexicon.id) %}
+    {# self.sb_logo(), #}
 {% set template_sidebar_rows = [
-	self.sb_home(),
-	self.sb_contents(),
-	self.sb_rules(),
-	self.sb_session(),
-	self.sb_stats()] %}
+    self.sb_home(),
+    self.sb_contents(),
+    self.sb_rules(),
+    self.sb_session(),
+    self.sb_stats()] %}
 {% else %}
-	{# self.sb_logo(), #}
+    {# self.sb_logo(), #}
 {% set template_sidebar_rows = [
-	self.sb_home(),
-	self.sb_contents(),
-	self.sb_rules(),
-	self.sb_stats()] %}
+    self.sb_home(),
+    self.sb_contents(),
+    self.sb_rules(),
+    self.sb_stats()] %}
 {% endif %}

amanuensis/server/lexicon/__init__.py

@@ -1,96 +1,82 @@
-from flask import (
-	Blueprint,
-	flash,
-	redirect,
-	url_for,
-	g,
-	render_template,
-	Markup)
+from flask import Blueprint, flash, redirect, url_for, g, render_template, Markup
 from flask_login import login_required, current_user
 
-from amanuensis.lexicon import (
-	player_can_join_lexicon,
-	add_player_to_lexicon,
-	sort_by_index_spec)
-from amanuensis.models import LexiconModel
-from amanuensis.server.helpers import (
-	lexicon_param,
-	player_required_if_not_public)
+from amanuensis.backend import lexiq, memq
+from amanuensis.db import DbContext, Lexicon, User
+from amanuensis.errors import ArgumentError
+from amanuensis.server.helpers import lexicon_param, player_required_if_not_public
 
 from .forms import LexiconJoinForm
 
 
-bp_lexicon = Blueprint('lexicon', __name__,
-	url_prefix='/lexicon/<name>',
-	template_folder='.')
+bp = Blueprint("lexicon", __name__, url_prefix="/lexicon/<name>", template_folder=".")
 
 
-@bp_lexicon.route("/join/", methods=['GET', 'POST'])
+@bp.route("/join/", methods=["GET", "POST"])
 @lexicon_param
 @login_required
 def join(name):
-	if g.lexicon.status != LexiconModel.PREGAME:
-		flash("Can't join a game already in progress")
-		return redirect(url_for('home.home'))
+    lexicon: Lexicon = g.lexicon
+    if not lexicon.joinable:
+        flash("This game isn't open for joining")
+        return redirect(url_for("home.home"))
 
-	if not g.lexicon.cfg.join.open:
-		flash("This game isn't open for joining")
-		return redirect(url_for('home.home'))
+    form = LexiconJoinForm()
 
-	form = LexiconJoinForm()
+    if not form.validate_on_submit():
+        # GET or POST with invalid form data
+        return render_template("lexicon.join.jinja", form=form)
 
-	if not form.validate_on_submit():
-		# GET or POST with invalid form data
-		return render_template('lexicon.join.jinja', form=form)
+    # POST with valid data
+    # If the game is passworded, check password
+    db: DbContext = g.db
+    if lexicon.join_password and not lexiq.password_check(
+        db, lexicon.id, form.password.data
+    ):
+        # Bad creds, try again
+        flash("Incorrect password")
+        return redirect(url_for("lexicon.join", name=name))
 
-	# POST with valid data
-	# If the game is passworded, check password
-	if (g.lexicon.cfg.join.password
-		and form.password.data != g.lexicon.cfg.join.password):
-		# Bad creds, try again
-		flash('Incorrect password')
-		return redirect(url_for('lexicon.join', name=name))
-	# If the password was correct, check if the user can join
-	if player_can_join_lexicon(current_user, g.lexicon, form.password.data):
-		add_player_to_lexicon(current_user, g.lexicon)
-		return redirect(url_for('session.session', name=name))
-	else:
-		flash('Could not join game')
-		return redirect(url_for('home.home', name=name))
+    # If the password was correct, check if the user can join
+    user: User = current_user
+    try:
+        memq.create(db, user.id, lexicon.id, is_editor=False)
+        return redirect(url_for("session.session", name=name))
+    except ArgumentError:
+        flash("Could not join game")
+        return redirect(url_for("home.home", name=name))
 
 
-@bp_lexicon.route('/contents/', methods=['GET'])
+@bp.get("/contents/")
 @lexicon_param
 @player_required_if_not_public
 def contents(name):
-	with g.lexicon.ctx.read('info') as info:
-		indexed = sort_by_index_spec(info, g.lexicon.cfg.article.index.list)
-		for articles in indexed.values():
-			for i in range(len(articles)):
-				articles[i] = {
-					'title': articles[i],
-					**info.get(articles[i])}
-		return render_template('lexicon.contents.jinja', indexed=indexed)
+    # indexed = sort_by_index_spec(info, g.lexicon.cfg.article.index.list)
+    # for articles in indexed.values():
+    #     for i in range(len(articles)):
+    #         articles[i] = {
+    #             'title': articles[i],
+    #             **info.get(articles[i])}
+    return render_template("lexicon.contents.jinja")
 
 
-@bp_lexicon.route('/article/<title>')
+@bp.get("/article/<title>")
 @lexicon_param
 @player_required_if_not_public
 def article(name, title):
-	with g.lexicon.ctx.article.read(title) as a:
-		article = {**a, 'html': Markup(a['html'])}
-		return render_template('lexicon.article.jinja', article=article)
+    # article = {**a, 'html': Markup(a['html'])}
+    return render_template("lexicon.article.jinja")
 
 
-@bp_lexicon.route('/rules/', methods=['GET'])
+@bp.get("/rules/")
 @lexicon_param
 @player_required_if_not_public
 def rules(name):
-	return render_template('lexicon.rules.jinja')
+    return render_template("lexicon.rules.jinja")
 
 
-@bp_lexicon.route('/statistics/', methods=['GET'])
+@bp.get("/statistics/")
 @lexicon_param
 @player_required_if_not_public
 def stats(name):
-	return render_template('lexicon.statistics.jinja')
+    return render_template("lexicon.statistics.jinja")

amanuensis/server/lexicon/forms.py

@@ -3,6 +3,7 @@ from wtforms import StringField, SubmitField
 
 
 class LexiconJoinForm(FlaskForm):
-	"""/lexicon/<name>/join/"""
-	password = StringField('Password')
-	submit = SubmitField('Submit')
+    """/lexicon/<name>/join/"""
+
+    password = StringField("Password")
+    submit = SubmitField("Submit")

amanuensis/server/lexicon/lexicon.article.jinja

@@ -14,14 +14,14 @@
 
 {% block citations %}
 <p>
-	{% for citation in article.cites %}
-	<a href="{{ citation|articlelink }}">{{ citation }}</a>{% if not loop.last %} / {% endif %}
-	{% endfor %}
+    {% for citation in article.cites %}
+    <a href="{{ citation|articlelink }}">{{ citation }}</a>{% if not loop.last %} / {% endif %}
+    {% endfor %}
 </p>
 <p>
-	{% for citation in article.citedby %}
-	<a href="{{ citation|articlelink }}">{{ citation }}</a>{% if not loop.last %} / {% endif %}
-	{% endfor %}
+    {% for citation in article.citedby %}
+    <a href="{{ citation|articlelink }}">{{ citation }}</a>{% if not loop.last %} / {% endif %}
+    {% endfor %}
 </p>
 {% endblock %}
 

amanuensis/server/lexicon/lexicon.contents.jinja

@@ -14,7 +14,7 @@
 <ul>
 {% for article in indexed[index] %}
 <li><a href="{{ article.title|articlelink }}" class="{{ 'phantom' if not article.character else '' }}">
-	{{ article.title }}
+    {{ article.title }}
 </a></li>
 {% endfor %}
 </ul>

amanuensis/server/lexicon/lexicon.join.jinja

@@ -1,14 +1,16 @@
 {% extends "lexicon.jinja" %}
-{% block title %}Join | {{ lexicon_title }}{% endblock %}
+{% block title %}Join | {{ g.lexicon.full_title }}{% endblock %}
 
 {% block main %}
 
 <form id="lexicon-join" action="" method="post" novalidate>
-	{{ form.hidden_tag() }}
-	{% if g.lexicon.cfg.join.password %}
-	<p>{{ form.password.label }}<br>{{ form.password(size=32) }}</p>
-	{% endif %}
-	<p>{{ form.submit() }}</p>
+    {{ form.hidden_tag() }}
+    {% if g.lexicon.join_password %}
+    <p>{{ form.password.label }}<br>{{ form.password(size=32) }}</p>
+    {% else %}
+    <p>Join {{ g.lexicon.full_title }}?</p>
+    {% endif %}
+    <p>{{ form.submit() }}</p>
 </form>
 
 {% for message in get_flashed_messages() %}

amanuensis/server/macros.jinja

@@ -3,7 +3,7 @@
 <div class="dashboard-lexicon-item dashboard-lexicon-{{ status }}">
     <p>
         <span class="dashboard-lexicon-item-title">
-            <a href="#{#{ url_for('lexicon.contents', name=lexicon.cfg.name) }#}">{{ lexicon.full_title }}</a>
+            <a href="{{ url_for('lexicon.contents', name=lexicon.name) }}">{{ lexicon.full_title }}</a>
         </span>
         [{{ status.capitalize() }}]
     </p>
@@ -29,7 +29,7 @@
         Players: {{ lexicon.memberships|count }}{% if lexicon.player_limit is not none %} / {{ lexicon.player_limit }}{% endif -%}
         {%-
             if lexicon.public and lexicon.joinable
-        %} / <a href="#{#{ url_for('lexicon.join', name=lexicon.cfg.name) }#}">Join game</a>
+        %} / <a href="{{ url_for('lexicon.join', name=lexicon.name) }}">Join game</a>
         {%- endif -%}
         {%- endif -%}
     </p>

mypy.ini

@@ -1,4 +1,4 @@
 [mypy]
 ignore_missing_imports = true
-exclude = "|amanuensis/lexicon/.*|amanuensis/server/.*|amanuensis/server/lexicon/.*|amanuensis/server/session/.*|"
+exclude = "|amanuensis/lexicon/.*|amanuensis/server/.*|amanuensis/server/session/.*|"
 ; mypy stable doesn't support pyproject.toml yet

pyproject.toml

@@ -22,11 +22,11 @@ amanuensis-cli = "amanuensis.cli:main"
 amanuensis-server = "amanuensis.server:run"
 
 [tool.black]
-extend-exclude = "^/amanuensis/lexicon/.*|^/amanuensis/server/[^/]*py|^/amanuensis/server/lexicon/.*|^/amanuensis/server/session/.*|"
+extend-exclude = "^/amanuensis/lexicon/.*|^/amanuensis/server/[^/]*py|^/amanuensis/server/session/.*|"
 
 [tool.mypy]
 ignore_missing_imports = true
-exclude = "|amanuensis/lexicon/.*|amanuensis/server/.*|amanuensis/server/lexicon/.*|amanuensis/server/session/.*|"
+exclude = "|amanuensis/lexicon/.*|amanuensis/server/.*|amanuensis/server/session/.*|"
 
 [tool.pytest.ini_options]
 addopts = "--show-capture=log"

tests/backend/test_article.py

@@ -1,9 +1,9 @@
 import pytest
 import time
 
-from amanuensis.db import DbContext
-from amanuensis.db.models import Character, Lexicon, User
-import amanuensis.backend.article as artiq
+from amanuensis.backend import artiq
+from amanuensis.db import DbContext, Character, Lexicon, User
+
 from amanuensis.errors import ArgumentError
 from tests.conftest import ObjectFactory
 

tests/backend/test_character.py

@@ -1,8 +1,8 @@
 import pytest
 
+from amanuensis.backend import charq
 from amanuensis.db import *
-import amanuensis.backend.character as charq
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def test_create_character(db: DbContext, lexicon_with_editor, make):
@@ -20,13 +20,13 @@ def test_create_character(db: DbContext, lexicon_with_editor, make):
     kwargs: dict
 
     # Bad argument types
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "name": b"bytestring"}
         charq.create(**kwargs)
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "name": None}
         charq.create(**kwargs)
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "signature": b"bytestring"}
         charq.create(**kwargs)
 

tests/backend/test_index.py

@@ -1,8 +1,8 @@
 from amanuensis.db.models import IndexType
 import pytest
 
-import amanuensis.backend.index as indq
-from amanuensis.db import DbContext, Lexicon, User
+from amanuensis.backend import indq
+from amanuensis.db import DbContext, Lexicon
 
 from amanuensis.errors import ArgumentError
 

tests/backend/test_lexicon.py

@@ -3,9 +3,9 @@ import time
 
 import pytest
 
-import amanuensis.backend.lexicon as lexiq
+from amanuensis.backend import lexiq
 from amanuensis.db import DbContext, Lexicon, User
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 from tests.conftest import ObjectFactory
 
 
@@ -20,7 +20,7 @@ def test_create_lexicon(db: DbContext):
     kwargs: dict
 
     # Test name constraints
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "name": None}
         lexiq.create(**kwargs)
     with pytest.raises(ArgumentError):
@@ -58,8 +58,8 @@ def test_lexicon_from(db: DbContext, make: ObjectFactory):
     """Test lexiq.from_*."""
     lexicon1: Lexicon = make.lexicon()
     lexicon2: Lexicon = make.lexicon()
-    assert lexiq.from_name(db, lexicon1.name) == lexicon1
-    assert lexiq.from_name(db, lexicon2.name) == lexicon2
+    assert lexiq.try_from_name(db, lexicon1.name) == lexicon1
+    assert lexiq.try_from_name(db, lexicon2.name) == lexicon2
 
 
 def test_get_lexicon(db: DbContext, make: ObjectFactory):

tests/backend/test_membership.py

@@ -2,9 +2,9 @@ import pytest
 
 from sqlalchemy import select
 
+from amanuensis.backend import memq
 from amanuensis.db import *
 from amanuensis.errors import ArgumentError
-import amanuensis.backend.membership as memq
 
 
 def test_create_membership(db: DbContext, make):

tests/backend/test_post.py

@@ -1,9 +1,9 @@
 import pytest
 
+from amanuensis.backend import postq
 from amanuensis.db import DbContext
-import amanuensis.backend.post as postq
 
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def test_create_post(db: DbContext, lexicon_with_editor):
@@ -20,19 +20,16 @@ def test_create_post(db: DbContext, lexicon_with_editor):
     kwargs: dict
 
     # ids are integers
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "user_id": "zero"}
         postq.create(**kwargs)
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "lexicon_id": "zero"}
         postq.create(**kwargs)
 
     # empty arguments don't work
-    with pytest.raises(ArgumentError):
-        kwargs = {**defaults, "lexicon_id": ""}
-        postq.create(**kwargs)
-    with pytest.raises(ArgumentError):
-        kwargs = {**defaults, "user_id": ""}
+    with pytest.raises(BackendArgumentTypeError):
+        kwargs = {**defaults, "lexicon_id": None}
         postq.create(**kwargs)
     with pytest.raises(ArgumentError):
         kwargs = {**defaults, "body": ""}

tests/backend/test_user.py

@@ -2,9 +2,9 @@ import os
 
 import pytest
 
-import amanuensis.backend.user as userq
+from amanuensis.backend import userq
 from amanuensis.db import DbContext, User
-from amanuensis.errors import ArgumentError
+from amanuensis.errors import ArgumentError, BackendArgumentTypeError
 
 
 def test_create_user(db: DbContext):
@@ -33,7 +33,7 @@ def test_create_user(db: DbContext):
         userq.create(**kwargs)
 
     # No password
-    with pytest.raises(ArgumentError):
+    with pytest.raises(BackendArgumentTypeError):
         kwargs = {**defaults, "password": None}
         userq.create(**kwargs)
 
@@ -57,10 +57,10 @@ def test_user_from(db: DbContext, make):
     """Test userq.from_*."""
     user1: User = make.user()
     user2: User = make.user()
-    assert userq.from_id(db, user1.id) == user1
-    assert userq.from_username(db, user1.username) == user1
-    assert userq.from_id(db, user2.id) == user2
-    assert userq.from_username(db, user2.username) == user2
+    assert userq.try_from_id(db, user1.id) == user1
+    assert userq.try_from_username(db, user1.username) == user1
+    assert userq.try_from_id(db, user2.id) == user2
+    assert userq.try_from_username(db, user2.username) == user2
 
 
 def test_user_password(db: DbContext, make):

tests/conftest.py

@@ -10,10 +10,7 @@ from bs4 import BeautifulSoup
 from flask.testing import FlaskClient
 from sqlalchemy.orm.session import close_all_sessions
 
-import amanuensis.backend.character as charq
-import amanuensis.backend.lexicon as lexiq
-import amanuensis.backend.membership as memq
-import amanuensis.backend.user as userq
+from amanuensis.backend import charq, lexiq, memq, userq
 from amanuensis.config import AmanuensisConfig
 from amanuensis.db import DbContext, User, Lexicon, Membership, Character
 from amanuensis.server import get_app
@@ -45,7 +42,7 @@ class UserClient:
 
     def login(self, client: FlaskClient):
         """Log the user in."""
-        user: Optional[User] = userq.from_id(self.db, self.user_id)
+        user: Optional[User] = userq.try_from_id(self.db, self.user_id)
         assert user is not None
 
         # Set the user's password so we know what it is later