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211 lines
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211 lines
12 KiB
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<h1><a href="https://github.com/tycrek/ass" target="_blank"><img height="180" alt="ass" src="https://jmoore.dev/files/ass-round-square-logo-white-with-text.png"></a></h1>
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[](https://discord.gg/wGZYt5fasY)
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**ass** is a self-hosted ShareX upload server written in Node.js. I initially started this project purely out of spite.
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## Code quality
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| [CodeQL](https://codeql.github.com/docs/) | [DeepSource](https://deepsource.io/) |
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| :---------------------------------------: | :----------------------------------: |
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| [](https://github.com/tycrek/ass/actions/workflows/codeql-analysis.yml) | [](https://deepsource.io/gh/tycrek/ass/?ref=repository-badge) [](https://deepsource.io/gh/tycrek/ass/?ref=repository-badge) |
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## Features
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- ✔️ Token authorization via HTTP `Authorization` header
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- ✔️ Upload images, videos, gifs, files
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- ✔️ Fancy embeds on Discord
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- ✔️ Seamless inline video embeds on Discord
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- ✔️ Upload log via customizable Discord Webhooks
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- ✔️ File deletion
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- ✔️ Usage metrics
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- ✔️ Thumbnail support
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- ✔️ Basic multi-user support
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- ✔️ Configurable global upload limit (per-user coming soon!)
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- ✔️ Local storage *or* block-storage support for [Amazon S3](https://aws.amazon.com/s3/) (including [DigitalOcean Spaces](https://www.digitalocean.com/products/spaces/))
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- ✔️ Custom pluggable frontend dashboards using [Git Submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules)
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- ✔️ Multiple access types
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- **[ZWS](https://zws.im)**
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- **Mixed-case alphanumeric**
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- **Gfycat**
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- **Original**
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- ❌ Multiple database types
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- **JSON**
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- **Mongo** (soon!)
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- **MySQL** (soon!)
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- **PostgreSQL** (soon!)
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### Access types
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| Type | What is it? |
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| ---- | ----------- |
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| **[ZWS](https://zws.im)** (Zero-width spaces) | The "fancy" mode. When pasted elsewhere, the URL appears to be *just* your domain name.<br> |
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| **Mixed-case alphanumeric** | The "safe" mode. URL's are browser safe as the character set is just letters & numbers. |
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| **Gfycat** | Gfycat-style ID's (for example: `https://gfycat.com/unsungdiscretegrub` "unsung discrete grub"). Thanks to [Gfycat](https://gfycat.com) for the wordlists |
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| **Original** | The "basic" mode. URL matches the same filename as when the file was uploaded. This may be prone to conflicts with files of the same name. |
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## Installation
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The installation may look daunting but it's really pretty straightforward. Just follow it word-for-word & you'll be fine. If you are not fine, then by all means [open an Issue](https://github.com/tycrek/ass/issues/new) & I'll try my best to help.
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1. First of all you must have **Node.js 14 or later** & **npm 7 or later** installed.
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2. Clone this repo using `git clone https://github.com/tycrek/ass.git && cd ass/`
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3. Run `npm i` to install the required dependencies
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4. Run `npm run setup` to start the easy configuration
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5. Run `npm start` to start the server. The first time you run it you will be shown your first authorization token; save this as you will need it to configure ShareX.
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6. **(Optional)** You must also configure an SSL-enabled reverse proxy (only if you want to use HTTPS):
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- I personally use Caddy, see [my tutorial](https://jmoore.dev/tutorials/2021/03/caddy-express-reverse-proxy/) on setting that up
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- You may also use Apache or Nginx as reverse proxies
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### Generating new tokens
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If you need to generate a new token at any time, run `npm run new-token <username>`. This will **automatically** load the new token so there is no need to restart ass. Username field is optional; if left blank, a random username will be created.
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### Cloudflare users
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In your Cloudflare DNS dashboard, make sure your domain/subdomain is set to **DNS Only**.
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> <img src="https://user-images.githubusercontent.com/29926144/114085791-0f467680-986f-11eb-8cdb-34a9dfae3a23.png" height="140px">
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## Configure ShareX
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1. Add a new Custom Uploader in ShareX by going to `Destinations > Custom uploader settings...`
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2. Under **Uploaders**, click **New** & name it whatever you like.
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3. Set **Destination type** to `Image`, `Text`, & `File`
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4. **Request** tab:
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- Method: `POST`
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- URL: `https://your.domain.name.here/`
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- Body: `Form data (multipart/form-data)`
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- File from name: `file` (literally put "`file`" in the field)
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- Headers:
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- Name: `Authorization`
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- Value: (the value provided by `npm start` on first run)
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5. **Response** tab:
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- URL: `$json:.resource$`
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- Thumbnail: `$json:.thumbnail$`
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- Deletion URL: `$json:.delete$`
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- Error message: `$response$`
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- MagicCap users: **do not** include the `.` in the above (i.e. `$json:resource$`)
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6. The file `sample_config.sxcu` can also be modified & imported to suit your needs
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### Header overrides
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If you need to override a specific part of the config to be different from the global config, you may do so via "`X`" HTTP headers:
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| Header | Purpose |
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| ------ | ------- |
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| **`X-Ass-Domain`** | Override the domain returned for the clipboard (useful for multi-domain hosts) |
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| **`X-Ass-Access`** | Override the generator used for the resource URI. Must be one of: `original`, `zws`, `gfycat`, or `random` ([see above](#access-types)) |
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| **`X-Ass-Gfycat`** | Override the length of Gfycat ID's. Defaults to `2` |
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### Fancy embeds
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If you primarily share media on Discord, you can add these additional (optional) headers to build embeds:
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| Header | Purpose |
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| ------ | ------- |
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| **`X-Ass-OG-Title`** | Large text shown above your media |
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| **`X-Ass-OG-Description`** | Small text shown below the title but above the media (does not show up on videos yet) |
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| **`X-Ass-OG-Author`** | Small text shown above the title |
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| **`X-Ass-OG-Author-Url`** | URL to open when the Author is clicked |
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| **`X-Ass-OG-Provider`** | Smaller text shown above the author |
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| **`X-Ass-OG-Provider-Url`** | URL to open when the Provider is clicked |
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| **`X-Ass-OG-Color`** | Colour shown on the left side of the embed. Must be one of `&random`, `&vibrant`, or a hex colour value (for example: `#fe3c29`). Random is a randomly generated hex value & Vibrant is sourced from the image itself |
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#### Embed placeholders
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You can insert certain metadata into your embeds with these placeholders:
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| Placeholder | Result |
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| ----------- | ------ |
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| **`&size`** | The files size with proper notation rounded to two decimals (example: `7.06 KB`) |
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| **`&filename`** | The original filename of the uploaded file |
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| **`×tamp`** | The timestamp of when the file was uploaded (example: `Oct 14, 1983, 1:30 PM`) |
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### Webhooks
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You may use Discord webhooks as an easy way to keep track of your uploads. The first step is to [create a new Webhook](https://support.discord.com/hc/en-us/articles/228383668-Intro-to-Webhooks). You only need to follow the first section, **Making a Webhook**. Once you are done that, click **Copy Webhook URL**. Next, paste your URL into a text editor. Extract these two values from the URL:
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```
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https://discord.com/api/webhooks/12345678910/T0kEn0fw3Bh00K
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^^^^^^^^^^ ^^^^^^^^^^^^
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Webhook ID Webhook Token
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```
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Once you have these, add the following HTTP headers to your ShareX config:
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| Header | Purpose |
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| ------ | ------- |
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| **`X-Ass-Webhook-Client`** | The **Webhook ID** |
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| **`X-Ass-Webhook-Token`** | The **Webhook Token** |
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| **`X-Ass-Webhook-Username`** | (Optional) the "username" of the Webhook; can be set to whatever you want |
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| **`X-Ass-Webhook-Avatar`** | (Optional) URL to an image to use as the Webhook avatar. Use the **full** URL including `https://` |
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Webhooks will show the filename, mimetype, size, upload timestamp, thumbail, and a link to delete the file. To disable webhooks, simply remove the headers from your config.
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## Dashboard frontends
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ass is intended to provide a strong backend for developers to build their own frontends around. The easiest way to do this is with a [Git Submodule](https://git-scm.com/book/en/v2/Git-Tools-Submodules). Your submodule should be a **separate** git repo. Make sure you [adjust the `FRONTEND_NAME`](https://github.com/tycrek/ass/blob/d766bd15cf8ac851058c8abf37238f1608d8c305/ass.js#L24) to match your frontend. To make updates easier, it is recommended to make a new branch. Since submodules are their own dedicated projects, you are free to build the router however you wish, as long as it exports the required items detailed below.
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Sample submodule entry file:
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```js
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const { name, version } = require('./package.json');
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const express = require('express');
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const router = express.Router();
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router.all('/', (_req, res) => res.send('My awesome dashboard!'));
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// These exports are REQUIRED by ass, so don't forget to set them!
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module.exports = {
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router, // The dashboard router itself
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enabled: true, // Required to activate frontend in ass; DO NOT change unless you want to disable your frontend
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brand: `${name} v${version}`, // Printed in ass logs & reported to client. Can be changed to your liking
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endpoint: '/dashboard' // URL to use for your dashboard router. ass will automatically set up Express to use this value. Can be changed to your liking
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};
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```
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Now you should see `My awesome dashboard!` when you navigate to `http://your-ass-url/dashboard`.
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**Disclaimer:** custom frontends are still experimental. Currently ass has no API, but I already plan on writing that very soon. For now, you can make your dashboard use `const users = require('../auth')` & `const data = require('../data')` (these values are recognized globally throughout ass, so they will stay up-to-date as users upload).
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**For a detailed walkthrough on developing your first frontend, [consult the wiki](https://github.com/tycrek/ass/wiki/Writing-a-custom-frontend).**
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## StorageEngines
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[StorageEngines](https://github.com/tycrek/ass-storage-engine) are responsible for managing your data. "Data" has two parts: an identifier & the actual data itself. With ass, the data is a JSON object representing the uploaded resource. The identifier is the unique ID in the URL returned to the user on upload.
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ass aims to support these storage methods at a minimum:
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- **JSON**
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- **Mongo** (soon)
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- **MySQL** (soon)
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- **PostgreSQL** (soon)
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An ass StorageEngine implements support for one type of database (or file, such as JSON or YAML). This lets ass server hosts pick their database of choice, because all they'll have to do is plugin the connection/authentication details, then ass will handle the rest, using the resource ID as the key.
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The only storage engine ass comes with by default is **JSON**. Others will be published to [npm](https://www.npmjs.com/) and listed here.
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**A wiki page on writing a custom StorageEngine is coming soon. Once complete, you can find it [here](https://github.com/tycrek/ass/wiki/Writing-a-StorageEngine).**
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## Flameshot users (Linux)
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Use [this script](https://github.com/tycrek/ass/blob/master/flameshot_example.sh) kindly provided by [@ToxicAven](https://github.com/ToxicAven). For the `KEY`, put your token.
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## Contributing
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No strict contributing rules at this time. I appreciate any Issues or Pull Requests.
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## Credits
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- Special thanks to [hlsl#1359](http://be.net/zevwolf) for the awesome logo!
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- [@ToxicAven](https://github.com/ToxicAven) for the Flameshot script
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- [Gfycat](https://gfycat.com) for their wordlists
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