Jodit Connector Application (Python)

Python/FastAPI implementation of the Jodit File Browser and Uploader connector.

Links:

• Jodit Editor - The WYSIWYG HTML editor
• Complete Documentation - Full documentation and API reference
• jodit-nodejs - Node.js implementation
• jodit-php - Original PHP implementation

Technology Stack

• Python 3.14+ with strict typing (mypy --strict)
• FastAPI / Starlette for the HTTP API
• Pydantic 2 for the configuration and API schemas
• Pillow for image processing and thumbnails
• httpx for SSRF-safe remote downloads
• WeasyPrint (PDF), html-for-docx (DOCX), boto3 (S3), paramiko (SFTP) as optional extras
• pytest + Testcontainers for testing (MinIO, vsftpd, OpenSSH, Apache, rclone)
• uv, Ruff and MkDocs Material for tooling and docs

Installation

pip install "jodit-python[all]"
# or run the Docker image
docker run --rm -p 8081:8081 -v $(pwd)/files:/app/files w2fb/jodit-python

Python 3.14+. Optional features are extras:

• [pdf] (generatePdf, needs the Pango system library: brew install pango on macOS, libpango-1.0-0 libpangoft2-1.0-0 libharfbuzz-subset0 on Debian/Ubuntu)
• [docx] (generateDocx)
• [s3] (S3 storage)
• [sftp] (SFTP storage; FTP needs no extra)
• [all] installs them all. Without an extra the connector still works and the action that needs it answers 501 naming what to install.

For development: uv (make sync installs everything).

Quick start

make sync   # install dependencies
make run    # http://localhost:8081/ping
make menu   # interactive list of commands

Try it with Jodit

make demo   # opens http://localhost:8080/demo/ (NO_BROWSER=1 to skip)

demo/index.html is the Jodit PRO file browser (from a CDN) talking to the connector configured by demo/config.json (CORS on, files in ./files, served by the same static server as the page). Jodit PRO needs no license key on localhost; on other hosts it shows a "Trial version" notice.

Usage

# main.py
from starlette.requests import Request

from jcpy import create_app


async def check_authentication(request: Request) -> str:
    token = request.headers.get("authorization")
    return "admin" if token == "Bearer secret" else "guest"


app = create_app("config.json", check_authentication=check_authentication)

uv run uvicorn main:app --port 8081

config.json overrides only what differs from the built-in defaults (camelCase keys):

{
  "onlyPOST": true,
  "sources": {
    "uploads": {
      "title": "Uploads",
      "root": "/var/www/uploads",
      "baseurl": "https://example.com/uploads/"
    }
  }
}

Without an explicit path the configuration is read from the CONFIG environment variable (JSON text) or the file named by CONFIG_FILE.

Access rules live in accessControl (the last matching rule wins, unlisted actions are allowed):

{
  "defaultRole": "guest",
  "accessControl": [
    { "role": "guest", "FILE_UPLOAD": false, "FILE_REMOVE": false },
    { "role": "admin", "path": "/private", "FILES": true }
  ]
}

They can also be loaded per check from code, e.g. from a database:

from jcpy import AccessControlRule, create_app


async def load_rules() -> list[AccessControlRule]:
    rows = await db.fetch_rules()
    return [AccessControlRule.model_validate(row) for row in rows]


app = create_app("config.json", access_control=load_rules)

S3 and S3-compatible storage

{
  "sources": {
    "media": {
      "title": "Media",
      "baseurl": "https://my-bucket.s3.eu-central-1.amazonaws.com/media/",
      "storageAdapter": "s3",
      "s3": {"bucket": "my-bucket", "region": "eu-central-1", "prefix": "media"}
    }
  }
}

Without credentials the AWS default chain is used (environment, profile, instance role). MinIO, Cloudflare R2, Yandex Object Storage and others work through endpoint (plus forcePathStyle: true where needed). Other backends implement jcpy.StorageAdapter and are registered with register_storage_adapter("name", factory).

FTP, SFTP and WebDAV servers

{
  "sources": {
    "site": {
      "title": "Website files",
      "baseurl": "https://www.example.com/uploads/",
      "storageAdapter": "sftp",
      "sftp": {
        "host": "files.example.com",
        "username": "editor",
        "privateKeyFile": "/run/secrets/editor_ed25519",
        "hostKey": "ssh-ed25519 AAAA...",
        "directory": "/var/www/uploads"
      }
    }
  }
}

storageAdapter: "ftp" with an ftp block works the same way (tls: true for FTPS), and so does "webdav" with a webdav block (url, username, password) for Apache, nginx, Nextcloud and other WebDAV servers. The SFTP host key is always checked (hostKey, knownHostsFile or the system known_hosts); get it with ssh-keyscan. Writes are atomic (a temporary file renamed over the target), and connections are pooled and reopened when they drop.

Multi-tenant sources

from starlette.requests import Request

from jcpy import ResolvedSources, create_app


async def resolve_sources(request: Request) -> ResolvedSources | None:
    tenant = await find_tenant(request.headers.get("x-tenant-id"))
    if tenant is None:
        return None  # static "sources" apply
    return ResolvedSources(
        id=f"{tenant.id}:{tenant.updated_at}",
        sources={"files": tenant.source_settings},
    )


app = create_app("config.json", resolve_sources=resolve_sources)

The resolver runs on every request, before authentication; the built sources are cached by id (dynamicSourcesCache: 200 tenants, 60 s by default). Use "sources": {} for an instance that only serves tenants.

Several independent instances can live in one application:

from fastapi import FastAPI

from jcpy import create_router

app = FastAPI()
app.include_router(create_router("public.json"), prefix="/public")
app.include_router(
    create_router("admin.json", check_authentication=admin_auth),
    prefix="/admin",
)

Documentation

Complete Documentation - Full documentation with guides and API reference

Quick Links:

• Getting Started - Installation and quick start
• Installation & Setup - Extras, environment variables, configuration sources
• Authentication - Cookie, JWT and session authentication
• Access Control - ACL rules and permissions
• Configuration - All configuration options
• FastAPI Integration - Mounting, prefixes, several instances
• AWS S3 & S3-compatible - Built-in S3 adapter, MinIO, R2, Yandex
• FTP & SFTP - Files on FTP, FTPS and SFTP servers
• WebDAV - Files on WebDAV servers (Apache, nginx, Nextcloud)
• Storage Adapters - Custom adapters, registering by name
• Dynamic Sources - Multi-tenant: resolve sources per request
• Documents - PDF and DOCX generation
• Docker Deployment - Docker guide
• API Endpoints - Every action with parameters and answers
• API Reference (Swagger) - Interactive OpenAPI reference

OpenAPI Specification:

• OpenAPI YAML
• OpenAPI JSON

The site is built from docs/ (make docs serves it locally, make docs-build builds it). The OpenAPI 3.1 document is generated from Pydantic models (make openapi); CI fails when it is stale. The connector itself does not serve /docs or /openapi.json: every path is an action name.

Key Features

• Full file management - browse, upload (also from a URL), download, rename, move, copy, delete
• Folder operations - create, rename, move, copy, delete, tree view
• Image processing - resize, crop, save from the image editor, thumbnails
• Document generation - PDF and DOCX from HTML (optional extras)
• Access control - rules by role, path and extension; static, computed or loaded at runtime
• Authentication - a per-request callback: cookies, JWT, sessions
• Security - SSRF-safe remote downloads, confinement to the source root (symlinks included), POST-only mode, CORS allowlist
• FastAPI integration - standalone app or router, several isolated instances in one application
• Storage - local filesystem, AWS S3 / S3-compatible, FTP / FTPS, SFTP and WebDAV out of the box, custom adapters registered by name
• Multi-tenant - sources resolved per request, one instance for many tenants
• OpenAPI - OpenAPI 3.1 and Swagger UI generated from the schemas
• Typed - mypy --strict, ships py.typed
• Testing - pytest suite with 100% coverage
• Docker - multi-stage, non-root, linux/amd64 + linux/arm64 image

Implemented Functions

• files - get list of files
• folders - get folder tree
• permissions - get permissions
• fileUpload - upload files
• fileUploadRemote - upload file from remote URL
• fileRemove - remove files
• fileMove - move files and folders
• fileCopy - copy files
• fileRename - rename files
• fileDownload - download file
• getLocalFileByUrl - resolve local file by URL
• folderCreate - create folders
• folderRemove - remove folders
• folderMove - move folders
• folderCopy - copy folders
• folderRename - rename folders
• imageResize - resize images
• imageCrop - crop images
• imageSave - save an image edited in the browser
• imageLoad - read an image as a data URL
• generatePdf - generate PDF documents from HTML
• generateDocx - generate DOCX documents from HTML
• ping - health check

Examples

Runnable programs in examples/ (start them from the repository root, e.g. uv run python examples/basic.py):

Development

make check  # lint, format, mypy --strict, OpenAPI and docs checks, tests

All caches (uv, ruff, mypy, pytest, coverage, bytecode) live in .cache/. The Makefile and the dev container set PYTHONPYCACHEPREFIX=.cache/pycache; export it yourself when running uv run ... directly.

Docker

make dev-up     # dev container with hot reload on http://localhost:8081
make dev-shell  # shell inside it (make check works there too)
make dev-down

make prod-up    # production image (non-root, tini, healthcheck)
make prod-down

PORT overrides the published host port, e.g. PORT=9000 make prod-up. Files served by the production container live in ./files.

Dev Containers

Open the folder in VS Code (or any IDE supporting Dev Containers) and choose Reopen in Container. The container is built from the dev stage of the Dockerfile; the virtualenv lives in a named volume, so it does not clash with a local .venv. Start the server with make dev.

License

MIT