Jaroslav Beneš
dd9e0e9440
LLeMbas now runs end to end. Register, add an OpenAI-compatible connection, and hold a real streaming conversation organised into folders. Verified against the local llama-swap instance. Streaming is the one genuinely tricky part. Sending a message returns two HTML fragments -- the user bubble and an empty assistant bubble carrying an sse-connect -- and that attribute is the ONLY thing that starts a generation. Rendering an incomplete assistant message as a streaming shell falls out of the same template, which means loading a page whose last reply never finished simply picks it up again. Details worth knowing about, each commented where it matters: - SSE payloads are split across several data: lines. A raw newline in one data: line truncates the event, which shows up the first time a model emits a code block. - Markdown is rendered server-side by the same helper for both the page and the final streamed frame, so the two cannot disagree. The fence renderer is replaced outright rather than using markdown-it's highlight option, which re-wraps output in a second <pre>. - escape_text is html.escape, not nh3.clean_text: it escapes character by character, so escaping stream chunks separately equals escaping the whole string. - The stream opens its own session via session_scope(); it outlives the request handler and the dependency-scoped session may be closed. - Deleting a folder keeps the chats inside it (FK is SET NULL). Losing a conversation to a mis-clicked folder delete is unforgivable. - Login failures use one message for "no such account" and "wrong password" so the form cannot enumerate registered addresses. Also adds deploy/ for the gamebox install at https://chat.lan: system unit, nginx vhost with buffering off (buffering on turns streaming into one lump at the end), and install/update scripts following the same service-user and /srv bind-mount conventions as llama-swap and comfyui. 70 tests, ruff clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
113 lines
3.8 KiB
Python
113 lines
3.8 KiB
Python
"""Command line entry points."""
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from __future__ import annotations
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import secrets as secrets_module
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import typer
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import uvicorn
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from sqlalchemy import func, select
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from lembas import __version__
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from lembas.config import settings
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app = typer.Typer(
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help="LLeMbas - a Middle-earth themed web UI for your language models.",
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no_args_is_help=True,
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add_completion=False,
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)
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@app.command()
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def serve(
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host: str = typer.Option(None, help="Bind address. Defaults to LEMBAS_HOST."),
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port: int = typer.Option(None, help="Port. Defaults to LEMBAS_PORT."),
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reload: bool = typer.Option(None, "--reload/--no-reload", help="Autoreload on change."),
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) -> None:
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"""Run the web server."""
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uvicorn.run(
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"lembas.main:app",
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host=host or settings.host,
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port=port or settings.port,
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reload=settings.reload if reload is None else reload,
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log_level=settings.log_level,
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# Access logs duplicate what the application already logs and drown out
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# anything useful during development.
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access_log=settings.log_level == "debug",
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)
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@app.command("create-admin")
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def create_admin(
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email: str = typer.Option(..., prompt=True),
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name: str = typer.Option(..., prompt=True),
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password: str = typer.Option(..., prompt=True, hide_input=True, confirmation_prompt=True),
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) -> None:
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"""Create an administrator, or promote an existing account to one.
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The web sign-up already makes the first account an admin. This is the way
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back in when that account is lost, or when scripting a deployment.
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"""
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from lembas.db.models import ROLE_ADMIN, User
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from lembas.db.session import init_db, session_scope
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from lembas.security.passwords import hash_password, validate_password
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if (problem := validate_password(password)) is not None:
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typer.secho(problem, fg=typer.colors.RED)
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raise typer.Exit(1)
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init_db()
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with session_scope() as db:
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existing = db.scalar(select(User).where(User.email == email.strip().lower()))
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if existing is not None:
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existing.role = ROLE_ADMIN
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existing.password_hash = hash_password(password)
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existing.active = True
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typer.secho(f"Promoted {existing.email} to administrator.", fg=typer.colors.GREEN)
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return
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db.add(
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User(
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email=email.strip().lower(),
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name=name.strip(),
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password_hash=hash_password(password),
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role=ROLE_ADMIN,
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)
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)
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typer.secho(f"Created administrator {email}.", fg=typer.colors.GREEN)
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@app.command("secret-key")
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def secret_key() -> None:
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"""Print a fresh value for LEMBAS_SECRET_KEY."""
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typer.echo(secrets_module.token_urlsafe(48))
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@app.command()
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def info() -> None:
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"""Show where this instance keeps its data and what is configured."""
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from lembas.db.models import Chat, Connection, User
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from lembas.db.session import init_db, session_scope
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init_db()
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typer.echo(f"LLeMbas {__version__}")
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typer.echo(f" data directory : {settings.data_dir.resolve()}")
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typer.echo(f" database : {settings.db_path.resolve()}")
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typer.echo(f" bind : {settings.host}:{settings.port}")
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typer.echo(f" default theme : {settings.default_theme}")
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typer.echo(f" signup open : {settings.allow_signup}")
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if settings.secret_key_is_ephemeral:
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typer.secho(
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" secret key : GENERATED (set LEMBAS_SECRET_KEY for a real install)",
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fg=typer.colors.YELLOW,
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)
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with session_scope() as db:
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for label, model in (("users", User), ("connections", Connection), ("chats", Chat)):
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count = db.scalar(select(func.count()).select_from(model))
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typer.echo(f" {label:<15}: {count}")
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if __name__ == "__main__":
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app()
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