pasty

Pasty is a fast and lightweight code pasting server

!!! Important deprecation notices !!!

This version of pasty uses a new field name for the so far called deletionToken: modificationToken. Instances using PostgreSQL are not affected as a corresponding SQL migration will run before the first startup. If you however use another storage driver you may have to update the entries by hand or using a simple query, depending on your driver as I don't plan to ship migrations for every single storage driver. It may be important to know that the data migrator has been upgraded too. This may serve as a convenient workaround (export data (field will be renamed) and import data with changed field names again).

The old deletionToken field will be processed corresponding to these changes but I strongly recommend updating old pastes if possible.

Additionally, I changed the three DELETION_TOKEN*environment variables to their corresponding MODIFICATION_TOKEN* ones:

• DELETION_TOKENS -> MODIFICATION_TOKENS
• DELETION_TOKEN_MASTER -> MODIFICATION_TOKEN_MASTER
• DELETION_TOKEN_LENGTH -> MODIFICATION_TOKEN_LENGTH

Again, the old ones will still work because I do not want to jumble your configurations. However, please consider updating them to stay future-proof ^^.

Support

As pasty is an open source project on GitHub you can open an issue whenever you encounter a problem or feature request. However, it may be annoying to open an issue just to ask a simple question about pastys functionalities, get help with the installation process or mention something about the hosted version. This is why I created a simple Discord server you may want to join to get an answer to stuff like that pretty quickly.

Disclaimer

The pasty web frontend comes with some service-related links in it (Discord server). Of course, you are allowed to remove these references. However, a small reference to pasty would be nice ^^.

Installation

You may set up pasty in multiple different ways. However, I won't cover all of them as I want to keep this documentation as clean as possible.

1.) Building from source

To build pasty from source make sure you have Go installed.

1. Clone the repository:

git clone https://github.com/lus/pasty

2. Switch directory:

cd pasty/

3. Run go build:

go build -o pasty ./cmd/pasty/main.go

To configure pasty, simply create a .env file in the same directory as the binary is placed in.

To run pasty, simply execute the binary.

2.) Docker (recommended)

To run pasty with Docker, you should have basic understanding of it.

An example docker run command may look like this:

docker run -d \
    -p 8080:8080 \
    --name pasty \
    -e PASTY_AUTODELETE="true" \
    ghcr.io/lus/pasty:latest

Pasty will be available at http://localhost:8080.

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General environment variables

Environment Variable	Default Value	Type	Description
PASTY_WEB_ADDRESS	:8080	string	Defines the address the web server listens to
PASTY_STORAGE_TYPE	file	string	Defines the storage type the pastes are saved to
PASTY_HASTEBIN_SUPPORT	false	bool	Defines whether or not the POST /documents endpoint should be enabled, as known from the hastebin servers
PASTY_ID_LENGTH	6	number	Defines the length of the ID of a paste
PASTY_ID_CHARACTERS	abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789	string	Defines the characters to use when generating paste IDs
PASTY_MODIFICATION_TOKENS	true	bool	Defines whether or not modification tokens should be generated
PASTY_MODIFICATION_TOKEN_MASTER	<empty>	string	Defines the master modification token which is authorized to modify every paste (even if modification tokens are disabled)
PASTY_MODIFICATION_TOKEN_LENGTH	12	number	Defines the length of the modification token of a paste
PASTY_MODIFICATION_TOKEN_CHARACTERS	abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789	string	Defines the characters to use when generating modification tokens
PASTY_RATE_LIMIT	30-M	string	Defines the rate limit of the API (see https://github.com/ulule/limiter#usage)
PASTY_LENGTH_CAP	50000	number	Defines the maximum amount of characters a paste is allowed to contain (a value <= 0 means no limit)

AutoDelete

Pasty provides an intuitive system to automatically delete pastes after a specific amount of time. You can configure it with the following variables:

Environment Variable	Default Value	Type	Description
PASTY_AUTODELETE	false	bool	Defines whether or not the AutoDelete system should be enabled
PASTY_AUTODELETE_LIFETIME	720h	string	Defines the duration a paste should live until it gets deleted
PASTY_AUTODELETE_TASK_INTERVAL	5m	string	Defines the interval in which the AutoDelete task should clean up the database

Reports

Pasty aims at being lightweight by default. This is why no fully-featured admin interface with an overview over all pastes and reports is included. However, pasty does include a way of abstract reports to allow frontends work with this information. If enabled, pasty makes a standardized request to the configured webhook URL if a paste is reported.

Environment Variable	Default Value	Type	Description
PASTY_REPORTS	false	bool	Defines whether or not the report system should be enabled
PASTY_REPORT_WEBHOOK	<empty>	string	Defines the webhook URL that is called whenever a paste is reported
PASTY_REPORT_WEBHOOK_TOKEN	<empty>	string	Defines the token that is sent in the Authorization header on every request to the report webhook

Storage types

Pasty supports multiple storage types, defined using the PASTY_STORAGE_TYPE environment variable (use the value behind the corresponding title in this README). Every single one of them has its own configuration variables:

File (file)

Environment Variable	Default Value	Type	Description
PASTY_STORAGE_FILE_PATH	./data	string	Defines the file path the paste files are being saved to

---

PostgreSQL (postgres)

Environment Variable	Default Value	Type	Description
PASTY_STORAGE_POSTGRES_DSN	postgres://pasty:pasty@localhost/pasty	string	Defines the PostgreSQL connection string (you might have to add ?sslmode=disable)

---

MongoDB (mongodb)

Environment Variable	Default Value	Type	Description
PASTY_STORAGE_MONGODB_CONNECTION_STRING	mongodb://pasty:pasty@localhost/pasty	string	Defines the connection string to use for the MongoDB connection
PASTY_STORAGE_MONGODB_DATABASE	pasty	string	Defines the name of the database to use
PASTY_STORAGE_MONGODB_COLLECTION	pastes	string	Defines the name of the collection to use

---

S3 (s3)

Environment Variable	Default Value	Type	Description
PASTY_STORAGE_S3_ENDPOINT	<empty>	string	Defines the S3 endpoint to connect to
PASTY_STORAGE_S3_ACCESS_KEY_ID	<empty>	string	Defines the access key ID to use for the S3 storage
PASTY_STORAGE_S3_SECRET_ACCESS_KEY	<empty>	string	Defines the secret acces key to use for the S3 storage
PASTY_STORAGE_S3_SECRET_TOKEN	<empty>	string	Defines the session token to use for the S3 storage (may be left empty in the most cases)
PASTY_STORAGE_S3_SECURE	true	bool	Defines whether or not SSL should be used for the S3 connection
PASTY_STORAGE_S3_REGION	<empty>	string	Defines the region of the S3 storage
PASTY_STORAGE_S3_BUCKET	pasty	string	Defines the name of the S3 bucket (has to be created before setup)