A lightweight, self-hosted paste platform

Features

• Self-contained system without external database dependencies
• Automatic programming language detection
• Optional on-disk encryption
• Optional single use pastes
• Optional expiration date
• QR code generation
• Theme system
• IP/network whitelisting and blocking
• Endpoint rate limiting
• JSON API
• Fully configurable via environment variables
• Included script for uploading files/content from stdin

Screenshots

Browser

Dark

CLI

Installation

Docker

It is highly recommended that you use the official Docker image to run Pastey. To do so, simply run:

$ docker run -d -p 5000:5000 -v /path/to/local/dir:/app/data cesura/pastey:latest

Change /path/to/local/dir to a local folder you would like to use for persistent paste storage. It will be mounted in the container at /app/data.

Pastey will then be accessible at http://localhost:5000

Docker (non-AVX processor)

If your processor does not have support for AVX instructions, the "latest" image will fail to run. This is due to a decision by Tensorflow to enable this compile flag by default in version 1.5+. However, Anaconda's distribution of Tensorflow supports older architectures even in the 2.x line. You can instead use the image tagged latest-conda:

$ docker run -d -p 5000:5000 -v /path/to/local/dir:/app/data cesura/pastey:latest-conda

docker-compose

If you prefer to use docker-compose:

$ wget https://raw.githubusercontent.com/Cesura/pastey/main/docker-compose.yml && docker-compose up -d

Note that this must be modified if you wish to use a local directory for storage, rather than a Docker volume.

Local

With language detection

Requirements:

• Python 3.8
• AVX-enabled processor (or a Python environment configured to use Anaconda's Tensorflow)

$ git clone https://github.com/Cesura/pastey.git && cd pastey && mkdir ./data
$ pip3 install -r requirements.txt
$ python3 app.py 

Without language detection

If you prefer to not use the language detection feature, use the included patch_no_tensorflow.sh script to remove the guesslang requirements:

$ git clone https://github.com/Cesura/pastey.git && cd pastey && mkdir ./data
$ ./patch_no_tensorflow.sh && pip3 install -r requirements.txt
$ python3 app.py 

Configuration

Here is a list of the available configuration options:

Environment Variable	config.py Variable	Description	Default Value
PASTEY_DATA_DIRECTORY	data_directory	Local directory for paste storage	./data
PASTEY_LISTEN_ADDRESS	listen_address	Address to listen on	0.0.0.0
PASTEY_LISTEN_PORT	listen_port	Port to listen on	5000
PASTEY_USE_WHITELIST	use_whitelist	Enable/disable whitelisting for admin tasks (view recent, delete, config)	True
PASTEY_WHITELIST_CIDR	whitelist_cidr	List of whitelisted IP addresses or networks (in CIDR format). When passed as an environment variable, it should be a comma-separated list.	[ '127.0.0.1/32' , '10.0.0.0/8' , '172.16.0.0/12' , '192.168.0.0/16' ]
PASTEY_BLACKLIST_CIDR	blacklist_cidr	List of blocked IP addresses or networks (in CIDR format). When passed as an environment variable, it should be a comma-separated list.	[]
PASTEY_RESTRICT_PASTING	restrict_pasting	Enable/disable restricting of pasting to whitelisted users	False
PASTEY_RATE_LIMIT	rate_limit	Rate limit for pasting, for non-whitelisted users	5/hour
PASTEY_GUESS_THRESHOLD	guess_threshold	Threshold for automatic language detection guesses. If a result is below this value, it is treated as Plaintext.	0.20
PASTEY_RECENT_PASTES	recent_pastes	Number of recent pastes to show on the home page	10
PASTEY_BEHIND_PROXY	behind_proxy	Inform Pastey if it is behind a reverse proxy (nginx, etc.). If this is the case, it will rely on HTTP headers X-Real-IP or X-Forwarded-For. NOTE: Make sure your proxy config sets these values	False
PASTEY_DEFAULT_THEME	default_theme	Select which theme Pastey should use by default. This is overridden by client options.	Light
PASTEY_PURGE_INTERVAL	purge_interval	Purge interval (in seconds) for checking expired pastes in background thread	3600
PASTEY_FORCE_SHOW_RECENT	force_show_recent	Show recent pastes on the home page, even to non-whitelisted users (without delete button)	False
PASTEY_IGNORE_GUESS	ignore_guess	Ignore these classifications for language detection	['TeX', 'SQL']
PASTEY_SHOW_CLI_BUTTON	show_cli_button	Enable/disabling showing of CLI button on home page	True

Docker configuration

For Docker environments, it is recommended that the options be passed to the container on startup:

$ docker run -d -p 5000:5000 -e PASTEY_LISTEN_PORT=80 -e PASTEY_BEHIND_PROXY="True" cesura/pastey:latest