readme: major overhaul

Signed-off-by: Gunwant Jain <mail@wantguns.dev>

readme.md

@@ -1,74 +1,191 @@
-Usage
------
 
-```plain
-    POST    / 
 
-        accepts raw data in the body of the request and responds with a URL
+# Bin 
-        of a page containing the body's content
+A minimal pastebin which also accepts binary files like Images, PDFs and ships
+multiple clients. 
 
-    GET     /<id>
+It does not require you to host a SQL server and everything is self-contained in
+a statically linked binary (the docker image runs on scratch !), which makes it
+extremely easy to deploy.
 
-        retrieves the content for the paste with id `<id>`
+Try it out on: https://bin.wantguns.dev
 
-    GET     /p/<id>
+## Clients
 
-        retrieves the HTML page with syntax-highlighted content for the paste with id `<id>`
+### Web
+
+You can paste
+
+- Normal Text
+
+- Paste Images from clipboard
+
+- Files by drag and drop
+
+### CLI
+
+#### Installation
+
+Get the client from [this repository](contrib/cli/client) or from my deployed paste:
+
+```bash
+curl -o pst https://bin.wantguns.dev/client
+chmod +x pst
 ```
 
-Examples
+or manually copy the following at a file in your path.
---------
 
-```plain
+```bash
-    Paste a file named 'file.txt' using cURL:
+#!/bin/bash
 
-        curl --data-binary @file.txt https://bin.wantguns.dev
+# Change the url accordingly
+URL="https://bin.wantguns.dev"
 
-    Paste from stdin using cURL:
+FILEPATH="$1"
+FILENAME=$(basename -- "$FILEPATH")
+EXTENSION="${FILENAME##*.}"
 
-        echo "Hello, world." | curl --data-binary @- https://bin.wantguns.dev
+RESPONSE=$(curl --data-binary @${FILEPATH:-/dev/stdin} --url $URL)
+PASTELINK="$URL$RESPONSE"
 
-    Add this to your .zshrc to implement a quicker usage.
+[ -z "$EXTENSION" ] && \
-
+    echo "$PASTELINK" || \
-        function paste() {
+    echo "$PASTELINK.$EXTENSION"
-          local file=${1:-/dev/stdin}
-          curl --data-binary @${file} https://bin.wantguns.dev
-        }
-
-    If the uploaded data binary is parsed as "text/*", then the paste will be syntax
-    highlighted
 ```
 
-Deployment
+#### Usage
-----------
 
-### Traefik
+It just works.
+
+```bash
+$ pst somefile.txt
+$ cat someimage.png | pst
+```
+
+### (Neo)Vim
+
+#### Installation
+
+1. Install the CLI client
+2. Append this to your init.vim / vimrc
+
+```vim
+nnoremap <leader>p :!pst %<CR>
+```
+#### Usage
+
+Use `<leader> + p` paste.
+
+
+## Server Deployment
+
+Currently, builds for the following target triples are shipped:
+- x86_64-unknown-linux-gnu (amd64)
+- aarch64-unknown-linux-gnu (arm64)
+
+The builds shipped are statically linked, so you don't even need a libc to run the binary !
+
+### Docker Compose
 
 ```yaml
-## (... Traefik service configuration ...) ##
+version: '3.3'
-
+services:
   pastebin:
     image: wantguns/bin
-     restart: always
     container_name: pastebin
     ports:
       - 127.0.0.1:6162:6162
     environment:
-       - ROCKET_PORT=6162
+      - BIN_PORT=6162
-       - THEME=
+      - BIN_LIMITS={form="16 MiB"}
-       - HOST_URL=${BIN_DOMAIN}
     volumes:
-       - /path/to/local/upload:/app/upload
+      - ./upload:/upload  # upload folder will have your pastes
-     labels:
+```
-       - "traefik.enable=true"
-       - "traefik.http.routers.pastebin.rule=Host(`${BIN_DOMAIN}`)"
-       - "traefik.http.routers.pastebin.entrypoints=secure"
-       - "traefik.http.routers.pastebin.tls.certresolver=le"
-       - "traefik.http.services.pastebin.loadbalancer.server.port=6162"
-     networks:
-       - bin_network
 
-networks:
+### Docker
-  - bin_network
+
- ```
+```bash
+$ docker run -p 6162:6162 wantguns/bin
+```
+
+### Manual
+
+- Grab a copy of the binary from GH releases   
+OR
+- Build on your own:
+```bash
+# A statically linked build
+$ cargo build --release
+```
+
+- Execute the binary as is, no extra shenanigans needed:
+```bash
+$ ./bin
+```
+
+#### Usage
+
+```txt
+USAGE:
+    bin [OPTIONS]
+
+OPTIONS:
+    -a, --address <ADDRESS>
+            Address on which the webserver runs [default: 0.0.0.0]
+
+    -b, --binary-upload-limit <BINARY_UPLOAD_LIMIT>
+            Binary uploads file size limit (in MiB) [default: 100]
+
+    -h, --help
+            Print help information
+
+    -p, --port <PORT>
+            Port on which the webserver runs [default: 6162]
+
+    -u, --upload <UPLOAD>
+            Path to the uploads folder [default: ./upload]
+
+    -V, --version
+            Print version information
+```
+
+#### Configuration
+
+This pastebin utilizes a custom configuration provider from Rocket. Apart from the essential arguments, you can also use environment variables, which have the highest preference in order.
+
+Everything from the [official Rocket doc](https://rocket.rs/v0.5-rc/guide/configuration/#overview) is supported, just that you have to prefix the env variable with "BIN_":
+```txt
+BIN_PORT=6163
+BIN_ADDRESS=0.0.0.0
+BIN_LIMITS={form="16 MiB"}
+BIN_WORKERS=8
+BIN_IDENT=false
+...
+```
+
+
+## API
+
+`GET /<id>`  
+  Get raw pastes
+
+`GET /p/<id>`  
+  Get highlighted pastes 
+
+`GET /p/<id>.<ext> `  
+
+  Get syntax highlighted pastes.  
+  E.g. https://bin.wantguns.dev/p/foobaz.cpp should return a C++ syntax
+  highlighted paste
+
+`POST /`  
+  Post binary data
+
+## Design Decisions
+
+This pastebin: 
+
+- does not use a database. It lacks non-essential features like password-protection / automatic deletion as a result of which, it can do completely fine with flat filesystems. As an upside (opinionated), it makes deploying it easier.
+- uses server sided highlighting, which ensures that everything stays light and snappy at the server side.
+- uses very minimal frontend because a pastebin does not need it. It focuses (or atleast tries to) on getting things done in minimum amount of clicks.