XRPL UNL Manager

Set of scripts to encode/decode and manage Unique Node Lists for XRPL testnet validators.

Update 14/07/2021 :

Not released yet, but most of the parts are working.
Extensive testing is required.
Documentation and release as python package are in my plans too.

How it works

These scripts are used to execute a scenario of UNL changes in a XRPL Testnet.

unl_manager.py : can run as a system daemon or standalone. It runs in a loop an executes the UNL changes for each validator as it is defined in the scenario file. When another unl_manager.py process is running in the same publish_path, it can print the status or stop the running process. It also maintains a directory tree in the publish_path that can be served by any Web server.
decodeUNL.py : decodes,validates and prints a UNL file or a UNL as it has been retrieved by a URL
encodeUNL.py : encodes and signs a UNL file for the given list of validators
getTrustGraph.py : parses the scenario file and extracts the connections graph in mermaid or dot format, that can be then used to visualize the graph.

At last, we include a docker-compose file that launches a nginx web server container and a python container running the unl_manager.py daemon.

Requirements

Python 3
cryptography 3.3.2
ECpy
base64
base58 >=2.1.0
Docker

pip install -r ./requirements.txt

Running scripts in a Docker container

The following command launches a Docker container with an interractive shell, after it installing the python modules using requirements.txt file.

SRC_PATH=$(realpath relative/path/to/srcdir) ./docker/launch_container.sh

In case Docker daemon won't find the python:3 image locally, it will pull it from Dockerhub.

The initialization script that runs before the interractive shell can be found in ./docker/init_container.sh.

Scripts command line arguments and configuration

UNL manager script

usage: unl_manager.py [-h]
                      [--start | --stop | --status | --reload | --restart]
                      [-d] [-sf STATUS_FILE] [-pid PID_FILE]
                      [-workdir WORKING_DIRECTORY] [-log LOG_FILE]
                      [-conf CONFIG_FILE] [-sc SCENARIO_FILE]
                      [-p PUBLISH_PATH] [-k KEYS_PATH] [-kf KEYS_FILE] [-c]
                      [-i | -t GENERATE_UNL_ON_TIME] [-vp VISUALIZATION_PATH]
                      [-vf VISUALIZATION_FORMAT]

Manages the UNL files for a Ripple Testnet.

optional arguments:
  -h, --help            show this help message and exit
  --start               Starts running the scenario file.
  --stop                Stops the running process on the same publish path
  --status              Prints the current state of the running process.
  --reload              Reloads configuration from files
  --restart             Restarts Daemon process.
  -d, --daemon          Runs as a daemon.
  -sf STATUS_FILE, --status-file STATUS_FILE
                        Defines the status file.
  -pid PID_FILE, --pid-file PID_FILE
                        Defines the pid locking file.
  -workdir WORKING_DIRECTORY, --working-directory WORKING_DIRECTORY
                        Defines the working directory.
  -log LOG_FILE, --log-file LOG_FILE
                        Defines the working directory.
  -conf CONFIG_FILE, --config-file CONFIG_FILE
                        Defines the configuration file.
  -sc SCENARIO_FILE, --scenario-file SCENARIO_FILE
                        Defines the scenario file to execute.
  -p PUBLISH_PATH, --publish-path PUBLISH_PATH
                        Defines the root of publish.
  -k KEYS_PATH, --keys-path KEYS_PATH
                        Defines the root path for the validators key pairs
  -kf KEYS_FILE, --keys-file KEYS_FILE
                        Defines the keys-pair file used to sign the UNL
  -c, --clean           Cleans up the generated files. NOTE: Do it only on
                        clean testnet, otherwise UNLs won't be validated
  -i, --generate-init-unl
                        Generates the UNL files for all the validators for the
                        network initialization (testnet time=0)
  -t GENERATE_UNL_ON_TIME, --generate-unl-on-time GENERATE_UNL_ON_TIME
                        Generates the UNL files for all the validators for the
                        given time. Time should be defined in Ripple Epoch
                        (secs since 01-01-2000)
  -vp VISUALIZATION_PATH, --visualization-path VISUALIZATION_PATH
                        Defines the root path for the vizualization output
  -vf VISUALIZATION_FORMAT, --visualization-format VISUALIZATION_FORMAT
                        Defines the format used for visualization
                        (dot,JSON,mermaid)

Decode / Encode UNL

usage: decodeUNL.py [-h] (-f FILE | -u URL) [-v]
                    [-praw | -pb | -prb | -pl | -pv | -pm | -ps]
                    [-o OUTPUT_FILE] [-ro RAW_OUTPUT_FILE]

Decodes an XRP Ledger UNL either from a file or from a URL

optional arguments:
  -h, --help            show this help message and exit
  -f FILE, --file FILE  Defines the UNL file to be parsed
  -u URL, --url URL     Defines the URL to retrieve the UNL file
  -v, --verify          Enables the UNL verification with manifest and blob
                        signatures during the decoding
  -praw, --print-raw    Prints the UNL JSON as received
  -pb, --print-blob     Prints the UNL blob JSON object
  -prb, --print-raw-blob
                        Prints the UNL blob RAW
  -pl, --print-validators-list
                        Prints the validators public keys list only
  -pv, --print-validators
                        Prints the validators objects list only
  -pm, --print-manifest
                        Prints the validators list manifest
  -ps, --print-signature
                        Prints the validators list signature
  -o OUTPUT_FILE, --output-file OUTPUT_FILE
                        Defines the output file.
  -ro RAW_OUTPUT_FILE, --raw-output-file RAW_OUTPUT_FILE
                        Defines the raw output file, as received.

usage: encodeUNL.py [-h] [-f LIST_FILE] [-blf BLOBLIST_FILE] [-bf BLOB_FILE]
                    [-v VERSION] [-xd EXPIRE_DATE] [-kf KEYS_FILE]
                    [-kp VALIDATORS_KEYS_PATH] [-o OUTPUT_FILE]

Encodes a XRP Ledger UNL from a file containing either a JSON list or line-
separated validator names

optional arguments:
  -h, --help            show this help message and exit
  -f LIST_FILE, --list-file LIST_FILE
                        Defines the UNL file to be parsed. It needs the
                        validators-keys-path
  -blf BLOBLIST_FILE, --bloblist-file BLOBLIST_FILE
                        Defines the UNL blob list file to be parsed. -
                        Expiration date and sequence can be set separately
  -bf BLOB_FILE, --blob-file BLOB_FILE
                        Defines the UNL blob file to be parsed - Expiration
                        date and sequence cannot be set
  -v VERSION, --version VERSION
                        Defines the version/sequence of the UNL.
  -xd EXPIRE_DATE, --expire-date EXPIRE_DATE
                        Sets the expiration date of the generated UNL.
                        (format: YYYYMMDDhhmmss). Defaults to 1 year since
                        now.
  -kf KEYS_FILE, --keys-file KEYS_FILE
                        Defines the keys-pair file used to sign the UNL
  -kp VALIDATORS_KEYS_PATH, --validators-keys-path VALIDATORS_KEYS_PATH
                        Defines the root path for the validators
  -o OUTPUT_FILE, --output-file OUTPUT_FILE
                        Defines the output file.

Extract Trust Graph

usage: getTrustGraph.py [-h] [-sc SCENARIO_FILE] [-t TIME]
                        (-a | -n [NODE_LIST [NODE_LIST ...]])
                        [-of {JSON,dot,mermaid}] [-imf {png,jpg,jpeg}]
                        [-o OUTPUT_FILE]

Extracts the Trust Graph from a scenario file at the given time

optional arguments:
  -h, --help            show this help message and exit
  -sc SCENARIO_FILE, --scenario-file SCENARIO_FILE
                        Defines the UNL scenario file to be parsed
  -t TIME, --time TIME  Defines the scenario time for which to generate the
                        UNL.
  -a, --all-nodes       Extracts the trust graph for all the nodes in one file
  -n [NODE_LIST [NODE_LIST ...]], --node-list [NODE_LIST [NODE_LIST ...]]
                        Defines the nodes for which to generate the graph, in
                        the same file
  -of {JSON,dot,mermaid}, --output-format {JSON,dot,mermaid}
                        Defines the output format.
  -imf {png,jpg,jpeg}, --image-output-format {png,jpg,jpeg}
                        Defines the image output format.
  -o OUTPUT_FILE, --output-file OUTPUT_FILE
                        Defines the output file.

Examples

Examples of input files to encodeUNL.py are in examples/ directory.

Get the UNL list from https://vl.ripple.com, validate it and print the list for validators public keys.

$ ./decodeUNL.py -u https://vl.ripple.com -v -pl
[b'nHBtDzdRDykxiuv7uSMPTcGexNm879RUUz5GW4h1qgjbtyvWZ1LE', b'nHUzum747yqip3HWSgzSNHNMjmLUqhroNVWidSRTREswEVhKNQEM', b'nHUon2tpyJEHHYGmxqeGu37cvPYHzrMtUNQFVdCgGNvEkjmCpTqK', b'nHU2Y1mLGDvTbc2dpvpkQ16qdeTKv2aJwGJHFySSB9U3jkTmj4CA', b'nHDDasc9BHNB99PW8KUduS8Phqg8NPUmjufzMU6HGGDMUH2xNpPh', b'nHUUrjuEMtvzzTsiW2xKinUt7Jd83QFqYgfy3Feb7Hq1EJyoxoSz', b'nHUkp7WhouVMobBUKGrV5FNqjsdD9zKP5jpGnnLLnYxUQSGAwrZ6', b'nHU95JxeaHJoSdpE7R49Mxp4611Yk5yL9SGEc12UDJLr4oEUN4NT', b'nHUCCckfXVBdoounaU7JVnfdPdMXEeetwH8VdCBXD996BaVZ8WdJ', b'nHUFzgC9fDw2MEDaiv9JMdBFhtJ6DMKoUCpS8gPGi6tkfbqmTyis', b'nHBidG3pZK11zQD6kpNDoAhDxH6WLGui6ZxSbUx7LSqLHsgzMPec', b'nHBgiH2aih5JoaL3wbiiqSQfhrC21vJjxXoCoD2fuqcNbriXsfLm', b'nHUcNC5ni7XjVYfCMe38Rm3KQaq27jw7wJpcUYdo4miWwpNePRTw', b'nHUXeusfwk61c4xJPneb9Lgy7Ga6DVaVLEyB29ftUdt9k2KxD6Hw', b'nHUd8g4DWm6HgjGTjKKSfYiRyf8qCvEN1PXR7YDJ5QTFyAnZHkbW', b'nHB8QMKGt9VB4Vg71VszjBVQnDW3v3QudM4DwFaJfy96bj4Pv9fA', b'nHDwHQGjKTz6R6pFigSSrNBrhNYyUGFPHA75HiTccTCQzuu9d7Za', b'nHUpJSKQTZdB1TDkbCREMuf8vEqFkk84BcvZDhsQsDufFDQVajam', b'nHUVPzAmAmQ2QSc4oE1iLfsGi17qN2ado8PhxvgEkou76FLxAz7C', b'nHUT6Xa588zawXVdP2xyYXc87LQFm8uV38CxsVzq2RoQJP8LXpJF', b'nHB5kpvUaEpvCtwu31fMf6dTuuCNnWRctWrV3UEZ9rbtPdpvbUvJ', b'nHULqGBkJtWeNFjhTzYeAsHA3qKKS7HoBh8CV3BAGTGMZuepEhWC', b'nHUfPizyJyhAJZzeq3duRVrZmsTZfcLn7yLF5s2adzHdcHMb9HmQ', b'nHUFE9prPXPrHcG3SkwP1UzAQbSphqyQkQK9ATXLZsfkezhhda3p', b'nHUFCyRCrUjvtZmKiLeF8ReopzKuUoKeDeXo3wEUBVSaawzcSBpW', b'nHUnhRJK3csknycNK5SXRFi8jvDp3sKoWvS9wKWLq1ATBBGgPBjp', b'nHDB2PAPYqF86j9j3c6w1F1ZqwvQfiWcFShZ9Pokg9q4ohNDSkAz', b'nHDH7bQJpVfDhVSqdui3Z8GPvKEBQpo6AKHcnXe21zoD4nABA6xj', b'nHUpcmNsxAw47yt2ADDoNoQrzLyTJPgnyq16u6Qx2kRPA17oUNHz', b'nHUryiyDqEtyWVtFG24AAhaYjMf9FRLietbGzviF3piJsMm9qyDR', b'nHUED59jjpQ5QbNhesXMhqii9gA8UfbBmv3i5StgyxG98qjsT4yn', b'nHDDE4Y3z5EE2VDDYrzheYQ4xC3F29SJsKT4dqhX4iyTLhuWgZnp', b'nHUvzia57LRXr9zqnYpyFUFeKvis2tqn4DkXBVGSppt5M4nNq43C', b'nHUcQnmEbCNq4uhntFudzfrZV8P5WLoBrR5h3R9jAd621Aaz1pSy', b'nHUERu1nWxv2PAtFAPKWuy6gSVhsMhSY8A52m8P7R2ZwrH7upuym', b'nHUq9tJvSyoXQKhRytuWeydpPjvTz3M9GfUpEqfsg9xsewM7KkkK', b'nHUbgDd63HiuP68VRWazKwZRzS61N37K3NbfQaZLhSQ24LGGmjtn']
Verified:  True

Sign a copy of https://vl.ripple.com UNL list

$ ./decodeUNL.py -u https://vl.ripple.com -pb > vl_ripple_com_blob.json

$ ./encodeUNL.py -bf ./vl_ripple_com_blob.json -kf ./unl-validator-token.txt -o ./mysigned_vl_ripple_com_unl.json
Finished!!!
$ $ ./decodeUNL.py -f ./mysigned_vl_ripple_com_unl.json -v -pl
[b'nHBtDzdRDykxiuv7uSMPTcGexNm879RUUz5GW4h1qgjbtyvWZ1LE', b'nHUzum747yqip3HWSgzSNHNMjmLUqhroNVWidSRTREswEVhKNQEM', b'nHUon2tpyJEHHYGmxqeGu37cvPYHzrMtUNQFVdCgGNvEkjmCpTqK', b'nHU2Y1mLGDvTbc2dpvpkQ16qdeTKv2aJwGJHFySSB9U3jkTmj4CA', b'nHDDasc9BHNB99PW8KUduS8Phqg8NPUmjufzMU6HGGDMUH2xNpPh', b'nHUUrjuEMtvzzTsiW2xKinUt7Jd83QFqYgfy3Feb7Hq1EJyoxoSz', b'nHUkp7WhouVMobBUKGrV5FNqjsdD9zKP5jpGnnLLnYxUQSGAwrZ6', b'nHU95JxeaHJoSdpE7R49Mxp4611Yk5yL9SGEc12UDJLr4oEUN4NT', b'nHUCCckfXVBdoounaU7JVnfdPdMXEeetwH8VdCBXD996BaVZ8WdJ', b'nHUFzgC9fDw2MEDaiv9JMdBFhtJ6DMKoUCpS8gPGi6tkfbqmTyis', b'nHBidG3pZK11zQD6kpNDoAhDxH6WLGui6ZxSbUx7LSqLHsgzMPec', b'nHBgiH2aih5JoaL3wbiiqSQfhrC21vJjxXoCoD2fuqcNbriXsfLm', b'nHUcNC5ni7XjVYfCMe38Rm3KQaq27jw7wJpcUYdo4miWwpNePRTw', b'nHUXeusfwk61c4xJPneb9Lgy7Ga6DVaVLEyB29ftUdt9k2KxD6Hw', b'nHUd8g4DWm6HgjGTjKKSfYiRyf8qCvEN1PXR7YDJ5QTFyAnZHkbW', b'nHB8QMKGt9VB4Vg71VszjBVQnDW3v3QudM4DwFaJfy96bj4Pv9fA', b'nHDwHQGjKTz6R6pFigSSrNBrhNYyUGFPHA75HiTccTCQzuu9d7Za', b'nHUpJSKQTZdB1TDkbCREMuf8vEqFkk84BcvZDhsQsDufFDQVajam', b'nHUVPzAmAmQ2QSc4oE1iLfsGi17qN2ado8PhxvgEkou76FLxAz7C', b'nHUT6Xa588zawXVdP2xyYXc87LQFm8uV38CxsVzq2RoQJP8LXpJF', b'nHB5kpvUaEpvCtwu31fMf6dTuuCNnWRctWrV3UEZ9rbtPdpvbUvJ', b'nHULqGBkJtWeNFjhTzYeAsHA3qKKS7HoBh8CV3BAGTGMZuepEhWC', b'nHUfPizyJyhAJZzeq3duRVrZmsTZfcLn7yLF5s2adzHdcHMb9HmQ', b'nHUFE9prPXPrHcG3SkwP1UzAQbSphqyQkQK9ATXLZsfkezhhda3p', b'nHUFCyRCrUjvtZmKiLeF8ReopzKuUoKeDeXo3wEUBVSaawzcSBpW', b'nHUnhRJK3csknycNK5SXRFi8jvDp3sKoWvS9wKWLq1ATBBGgPBjp', b'nHDB2PAPYqF86j9j3c6w1F1ZqwvQfiWcFShZ9Pokg9q4ohNDSkAz', b'nHDH7bQJpVfDhVSqdui3Z8GPvKEBQpo6AKHcnXe21zoD4nABA6xj', b'nHUpcmNsxAw47yt2ADDoNoQrzLyTJPgnyq16u6Qx2kRPA17oUNHz', b'nHUryiyDqEtyWVtFG24AAhaYjMf9FRLietbGzviF3piJsMm9qyDR', b'nHUED59jjpQ5QbNhesXMhqii9gA8UfbBmv3i5StgyxG98qjsT4yn', b'nHDDE4Y3z5EE2VDDYrzheYQ4xC3F29SJsKT4dqhX4iyTLhuWgZnp', b'nHUvzia57LRXr9zqnYpyFUFeKvis2tqn4DkXBVGSppt5M4nNq43C', b'nHUcQnmEbCNq4uhntFudzfrZV8P5WLoBrR5h3R9jAd621Aaz1pSy', b'nHUERu1nWxv2PAtFAPKWuy6gSVhsMhSY8A52m8P7R2ZwrH7upuym', b'nHUq9tJvSyoXQKhRytuWeydpPjvTz3M9GfUpEqfsg9xsewM7KkkK', b'nHUbgDd63HiuP68VRWazKwZRzS61N37K3NbfQaZLhSQ24LGGmjtn']
Verified:  True

Sign a copy of https://vl.ripple.com UNL list, set sequence and new expire date

$ ./decodeUNL.py -u https://vl.ripple.com -pv > ./vl_ripple_com_bloblist.json 
$ ./encodeUNL.py -blf ./vl_ripple_com_bloblist.json -kf ./unl-validator-token.txt -o ./mysigned_vl_ripple_com_unl.json -xd 20220202000000 -v 10
Finished!!!
$ ./decodeUNL.py -f ./mysigned_vl_ripple_com_unl.json -v -pb
{"validators": [{"validation_public_key": "ED45E80A04D79CB9DF00AEBD86DCDC1686D6419EA9E5E0E71F1A817E08B5076A55", "manifest": "JAAAAAFxIe1F6AoE15y53wCuvYbc3BaG1kGeqeXg5x8agX4ItQdqVXMhAxZo157pcB9de6Smk7hoK3wNCAr4aFZtfAPi7CE4mNJldkcwRQIhALlVjXCfiy/mtXBWsNt77t4jKcNEBpRV8zv+SpU5lCh0AiBa8vo8xxpviYlf4zdG+nQhB2OgfkQZZPMHOt7CaXzXgXASQL8O5p083mg4KKL8uZfMaUqdgzuJ0Gta1lyUWPctTPCxY135XwK+nJAdFsIUFNJ9MPjnpCmSjYVzVa6M5/nAcAI="}, {"validation_public_key": "EDD8C88642795CE69C5B780E01702C370F9507D0B64433F17EFE70F2637A40ADB7", "manifest": "JAAAAAFxIe3YyIZCeVzmnFt4DgFwLDcPlQfQtkQz8X7+cPJjekCtt3MhAnFfr+r9BXdsXE/cBlJMyd/XsO1A5XEYCctrsvLEX+DmdkcwRQIhANRcRMg9SAXoaOvHDZ2av9RzEaZaVENfQiVgsi+Ox3F0AiB2snSIOm6c4/inbtU0UmWLQTzuwkOdUFPIB8Ax8dmGuHASQMUIfXMj96kcFTSJnMFC/mW/AQ8bKXkFrrk0CUTFFKweEjTq+STrFi6qLL2MT7nveGxsXBCgztjc0qGas9KFWgM="}, {"validation_public_key": "EDBDEB901F7C75D0E20C6C42AF03BE0DA40377AF1939A18B3CB3679661DD5F9F74", "manifest": "JAAAAAFxIe2965AffHXQ4gxsQq8Dvg2kA3evGTmhizyzZ5Zh3V+fdHMhAg3cyKNPMPqKgR7kIi7c/8GL/YgdBtg4mSAWvwmaevVGdkYwRAIgWzG8GqYg3YpwDs8xXa9XqLHss76KT2uAHRhUXFVUqCQCIG2EvbFKnxezRd9cpPHSt32HXK+P4+aL3p2+vqlCxRR9cBJAboXTmYTayocA3zf9dWEXtyaeOGC1k5WdYURzPleevvalR4xVoXzs38iGPxFr/pA9nL+M4duu0GKCHlVir+fBAg=="}, {"validation_public_key": "EDA17871E72B0C570AC4345C60CF02AFBBB740A631B7AD0E1E573216574D9AEA02", "manifest": "JAAAAAFxIe2heHHnKwxXCsQ0XGDPAq+7t0CmMbetDh5XMhZXTZrqAnMhAojyuzgtreQkxQj8prHxOsbDcF5fu4XXb0KxEL/Pq5HhdkcwRQIhANfPDLZP47aCWwt5kBnp75BuuCgp9c4BfJPd66SFCw61AiAJvegBvvPIrec+XOSzKRfi5uuXWxtl9Eyr2aPBYXvbRHASQMULYEo7beRfoUCnjk1sTYyY91tLIGLgnnaWXhUm80+zs5IGegk8qijKAtBOMuBC71lAB4KhJc+dB2rpMOFc5gw="}, {"validation_public_key": "EDF46EE27AD0E1A714AFECDA816EAB7114614FCB92D0CB4D97B6A88ED43434AFC9", "manifest": 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Verified:  True

Contributors

Antonios Inglezakis (@antiggl), Leading Researcher and Developer, University of Nicosia
Alloy Networks (@alloyxrp)

Acknowledgements

This work is funded by the Ripple’s Impact Fund, an advised fund of Silicon Valley Community Foundation (Grant id: 2018–188546). Link: [https://ubri.ripple.com/]

antIggl / xrpl-unl-manager

readme