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README.md

pict-rs

a simple image hosting service

Usage

Running

pict-rs 0.1.4

USAGE:
    pict-rs [FLAGS] [OPTIONS] --path <path>

FLAGS:
    -h, --help                     Prints help information
    -s, --skip-validate-imports    Whether to skip validating images uploaded via the internal import API
    -V, --version                  Prints version information

OPTIONS:
    -a, --addr <addr>                      The address and port the server binds to. Default: 0.0.0.0:8080 [env:
                                           PICTRS_ADDR=]  [default: 0.0.0.0:8080]
    -f, --format <format>                  An optional image format to convert all uploaded files into, supports 'jpg'
                                           and 'png' [env: PICTRS_FORMAT=]
    -m, --max-file-size <max-file-size>    Specify the maximum allowed uploaded file size (in Megabytes) [env:
                                           PICTRS_MAX_FILE_SIZE=]  [default: 40]
    -p, --path <path>                      The path to the data directory, e.g. data/ [env: PICTRS_PATH=]
    -w, --whitelist <whitelist>...         An optional list of filters to whitelist, supports 'identity', 'thumbnail',
                                           and 'blur' [env: PICTRS_FILTER_WHITELIST=]

Example:

Running on all interfaces, port 8080, storing data in /opt/data

$ ./pict-rs -a 0.0.0.0:8080 -p /opt/data

Running locally, port 9000, storing data in data/, and converting all uploads to PNG

$ ./pict-rs -a 127.0.0.1:9000 -p data/ -f png

Running locally, port 8080, storing data in data/, and only allowing the thumbnail and identity filters

$ ./pict-rs -a 127.0.0.1:8080 -p data/ -w thumbnail identity

Docker

Run the following commands:

# Create a folder for the files (anywhere works)
$ mkdir ./pict-rs
$ cd ./pict-rs
$ mkdir -p volumes/pictrs
$ sudo chown -R 991:991 volumes/pictrs
$ wget https://git.asonix.dog/asonix/pict-rs/raw/branch/master/docker/prod/docker-compose.yml
$ sudo docker-compose up -d

Docker Development

The development system loads a rust environment inside a docker container with the neccessary dependencies already present

$ git clone https://git.asonix.dog/asonix/pict-rs
$ cd pict-rs/docker/dev
$ ./dev.sh
$ cargo build
$ cargo run

API

pict-rs offers four endpoints:

  • POST /image for uploading an image. Uploaded content must be valid multipart/form-data with an image array located within the images[] key

    This endpoint returns the following JSON structure on success with a 201 Created status

    {
        "files": [
            {
                "delete_token": "JFvFhqJA98",
                "file": "lkWZDRvugm.jpg"
            },
            {
                "delete_token": "kAYy9nk2WK",
                "file": "8qFS0QooAn.jpg"
            },
            {
                "delete_token": "OxRpM3sf0Y",
                "file": "1hJaYfGE01.jpg"
            }
        ],
        "msg": "ok"
    }
    
  • POST /import for uploading an image while preserving the filename. This should not be exposed to the public internet, as it can cause naming conflicts with saved files. The upload format and response format are the same as the POST /image endpoint.

  • GET /image/download?url=... Download an image from a remote server, returning the same JSON payload as the POST endpoint

  • GET /image/{file} for getting a full-resolution image. file here is the file key from the /image endpoint’s JSON

  • GET /image/{transformations...}/{file} get a file with transformations applied. existing transformations include

    • identity: apply no changes
    • blur{float}: apply a gaussian blur to the file
    • thumbnail{int}: produce a thumbnail of the image fitting inside an {int} by {int} square An example of usage could be
    GET /image/thumbnail256/blur3.0/asdf.png
    

    which would create a 256x256px thumbnail and blur it

  • DELETE /image/delete/{delete_token}/{file} or GET /image/delete/{delete_token}/{file} to delete a file, where delete_token and file are from the /image endpoint’s JSON

Contributing

Feel free to open issues for anything you find an issue with. Please note that any contributed code will be licensed under the AGPLv3.

License

Copyright © 2020 Riley Trautman

pict-rs is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

pict-rs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. This file is part of pict-rs.

You should have received a copy of the GNU General Public License along with pict-rs. If not, see http://www.gnu.org/licenses/.