[pkg]: megaloader (core)

Library for extracting downloadable content metadata from file hosting platforms. Provides automatic URL detection and a plugin architecture for multi-platform support.

Installation

pip install megaloader

The library has minimal dependencies: requests for HTTP, beautifulsoup4 and lxml for HTML parsing.

Basic usage

Call extract() with any supported URL. The function detects the platform automatically and returns a generator of file metadata:

from megaloader import extract

for item in extract("https://pixeldrain.com/l/abc123"):
    print(f"{item.filename} - {item.download_url}")

Each item contains the download URL, filename, and optional metadata like collection name and file size. Network requests happen lazily during iteration.

You can also force a plugin explicitly:

for item in extract("https://example.invalid/path", plugin="gofile"):
    print(item.filename)

Downloading files

The library extracts metadata only. Use requests or similar to download:

import requests
from pathlib import Path
from megaloader import extract

def download_file(item, output_dir):
    dest = Path(output_dir) / item.filename
    response = requests.get(item.download_url, headers=item.headers, stream=True)
    response.raise_for_status()

    with open(dest, 'wb') as f:
        for chunk in response.iter_content(chunk_size=8192):
            f.write(chunk)

for item in extract("https://pixeldrain.com/l/abc123"):
    download_file(item, "./downloads")

The headers attribute contains any required HTTP headers for the download request.

API options

extract() accepts optional transport and plugin controls:

import requests
from megaloader import extract
from megaloader.plugins.gofile import Gofile

session = requests.Session()

# Force plugin by name
items = extract("https://example.invalid/path", plugin="gofile")

# Force plugin by class
items = extract("https://example.invalid/path", plugin=Gofile)

# Inject your own session and timeout
items = extract("https://gofile.io/d/fhGIJu", session=session, timeout=20)

This keeps extraction in core while letting downstream apps decide transport policy.

Supported platforms

Four core platforms receive active development. Seven extended platforms are maintained best-effort and may break without immediate fixes.

Core platforms:

Bunkr (bunkr.si, bunkr.la, bunkr.is, bunkr.ru, bunkr.su), PixelDrain (pixeldrain.com), Cyberdrop (cyberdrop.cr, cyberdrop.me, cyberdrop.to), GoFile (gofile.io).

Extended platforms:

Pixiv (pixiv.net), Rule34 (rule34.xxx), ThotsLife (thotslife.com), ThotHub.VIP (thothub.vip), ThotHub.TO (thothub.to), Fapello (fapello.com).

All platforms support albums, galleries, or lists. Single-file URLs work where applicable.

Platform-specific features

GoFile supports password-protected folders:

items = extract("https://gofile.io/d/folder", password="secret123")

Pixiv requires a session cookie for full results. Without authentication, only public content is returned (which is very limited):

items = extract("https://pixiv.net/artworks/12345", session_id="your_session_cookie")

Rule34 accepts optional API credentials for higher rate limits and faster extraction. Without them, scraping is used as a fallback:

items = extract(
    "https://rule34.xxx/index.php?page=post&s=list&tags=example",
    api_key="your_api_key",
    user_id="your_user_id"
)

[!WARNING]
Free-tier accounts on Pixiv may still return incomplete file sets.

Working with items

The DownloadItem dataclass contains file metadata:

for item in extract(url):
    item.download_url     # Direct download URL (required)
    item.filename         # Leaf filename only (required, no path separators)
    item.collection_name  # Album/gallery name (optional)
    item.source_id        # Platform-specific ID (optional)
    item.size_bytes       # File size in bytes (optional)
    item.headers          # Required HTTP headers (optional)

Required fields are always populated. Optional fields may be None depending on platform and content type.

Direct plugin usage

Import plugin classes directly when you need plugin-specific control:

from megaloader.plugins.cyberdrop import Cyberdrop

plugin = Cyberdrop("https://cyberdrop.me/a/album_id")
items = list(plugin.extract())
print(f"Found {len(items)} files")

This bypasses automatic detection and gives direct access to plugin internals.

Error handling

Then use commas and make the sentence structurally explicit instead of interruptive.

Best version without em dashes:

All extraction failures surface as typed exceptions. Malformed URLs raise ValueError. Unknown hosts raise UnsupportedDomainError. All other failures, including HTTP errors, network failures, and unexpected API responses, raise ExtractionError with structured metadata:

from megaloader import (
    ExtractionError,
    UnsupportedDomainError,
    extract,
)

try:
    items = list(extract(url))
except UnsupportedDomainError:
    print("Platform not supported")
except ExtractionError as e:
    print(f"Extraction failed: {e.detail}")
    print(f"source={e.source} category={e.category} http={e.http_status}")
except ValueError:
    print("Invalid URL format")

ExtractionError.category is one of "rate_limit", "auth", "access", "network", "timeout", "protocol", or "unknown". HTTP status codes are classified automatically: a 429 always surfaces as "rate_limit", a 401 as "auth", and so on, regardless of which plugin handled the request.

Writing a plugin

Subclass BasePlugin and implement extract():

from collections.abc import Generator
from megaloader.plugin import BasePlugin
from megaloader.item import DownloadItem

class MyPlugin(BasePlugin):
    def _configure_session(self, session):
        session.headers["Referer"] = "https://example.com/"

    def extract(self) -> Generator[DownloadItem, None, None]:
        response = self._get(self.url)  # raises ExtractionError on failure
        data = response.json()
        for file in data["files"]:
            yield DownloadItem(
                download_url=file["url"],
                filename=file["name"],
            )

Use self._get(url) and self._post(url, ...) instead of the session directly. Both methods map HTTP and network failures to ExtractionError automatically, so extract() only needs to handle business logic. Override _configure_session() to add authentication headers or cookies.

Contributing

Install dependencies with uv sync from the repository root. Run mise run check before committing; it covers formatting, type checking, and unit tests. See the repository contributing guide for plugin development details.

Report bugs and request features through GitHub Discussions. Include Python version, error messages, and problematic URLs.