hughrawlinson/README.md

## README.md

      
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              README.md
            
          
    Spotify OAuth Scripts

Requirements


jq
Your own Spotify Client ID and Client Secret

Creds Storage

Store your Client ID in ~/.config/spotify_client_creds.json. It should look like:
{
  "id": "",
  "secret": ""
}
Installation

Add client_creds and authorization_code to your path, however you like. I like storing them in ~/.local/bin and adding that directory to my path.
Store your credentials on your filesystem as shown above. You have full disk encryption turned on, right?
If you want to do user authentication, you should make sure that your app has whitelisted http://localhost:8082/ as a redirect URI.
Usage

client_creds for client-only credentials
authorization_code for user login credentials
Contributing

Found a bug? Well volunteered! I look forward to reviewing your patch.

  
## authorization_code
#!/bin/bash

# spotify_platform_oauth.sh
#
# A script to quickly and easily generate Spotify oauth tokens given a client
# id, secret, and scope. Will authenticate a user via the browser.

# The app must have "http://localhost:8082/' as a redirect_uri

# spotify_client_creds.json should contain a spotify client id and secret pair
# encoded as a json object with properties `id` and `secret`

# TODO grab client id and secret first from args, if not, then this file, if not, exit with an error
client_id=$(jq -r '.id' ~/.config/spotify_client_creds.json)
client_secret=$(jq -r '.secret' ~/.config/spotify_client_creds.json)
port=8082
redirect_uri=http%3A%2F%2Flocalhost%3A$port%2F
auth_endpoint=https://accounts.spotify.com/authorize/?response_type=code\&client_id=$client_id\&redirect_uri=$redirect_uri
# TODO return cached access token if scopes match and it hasn't expired
# TODO get scopes from args
scopes="playlist-read-private"
if [[ ! -z $scopes ]]
then
  encoded_scopes=$(echo $scopes| tr ' ' '%' | sed s/%/%20/g)
  # If scopes exists, then append them to auth_endpoint
  auth_endpoint=$auth_endpoint\&scope=$encoded_scopes
fi

# TODO if refresh_token exists and is valid for scopes, use refresh flow
open $auth_endpoint
# User is now authenticating on accounts.spotify.com...

# Now the user gets redirected to our endpoint
# Grab token and close browser window
response=$(echo "HTTP/1.1 200 OK\nAccess-Control-Allow-Origin:*\nContent-Length:65\n\n<html><script>open(location, '_self').close();</script></html>\n" | nc -l -c $port)
code=$(echo "$response" | grep GET | cut -d' ' -f 2 | cut -d'=' -f 2)

response=$(curl -s https://accounts.spotify.com/api/token \
  -H "Content-Type:application/x-www-form-urlencoded" \
  -H "Authorization: Basic $(echo -n $client_id:$client_secret | base64)" \
  -d "grant_type=authorization_code&code=$code&redirect_uri=http%3A%2F%2Flocalhost%3A$port%2F")

# Useful values are
# jq -r '.expires_in'
# may not exist
# jq -r '.scope'

# I'm not actually using this yet, best not store it
# echo $response | jq -r '.refresh_token' > /var/tmp/spotify_refresh_token
# TODO cache access token
echo $response | jq -r '.access_token'

## client_creds
#!/bin/bash

client_id=$(jq -r '.id' ~/.config/spotify_client_creds.json)
client_secret=$(jq -r '.secret' ~/.config/spotify_client_creds.json)

encoded_creds="$(echo -n "$client_id:$client_secret" | base64 -w 0)"

curl -s "https://accounts.spotify.com/api/token" -d "grant_type=client_credentials" -H "Authorization: Basic $encoded_creds" \
  | jq -r .access_token
	#!/bin/bash

	# spotify_platform_oauth.sh
	#
	# A script to quickly and easily generate Spotify oauth tokens given a client
	# id, secret, and scope. Will authenticate a user via the browser.

	# The app must have "http://localhost:8082/' as a redirect_uri

	# spotify_client_creds.json should contain a spotify client id and secret pair
	# encoded as a json object with properties `id` and `secret`

	# TODO grab client id and secret first from args, if not, then this file, if not, exit with an error
	client_id=$(jq -r '.id' ~/.config/spotify_client_creds.json)
	client_secret=$(jq -r '.secret' ~/.config/spotify_client_creds.json)
	port=8082
	redirect_uri=http%3A%2F%2Flocalhost%3A$port%2F
	auth_endpoint=https://accounts.spotify.com/authorize/?response_type=code\&client_id=$client_id\&redirect_uri=$redirect_uri
	# TODO return cached access token if scopes match and it hasn't expired
	# TODO get scopes from args
	scopes="playlist-read-private"
	if [[ ! -z $scopes ]]
	then
	encoded_scopes=$(echo $scopes\| tr ' ' '%' \| sed s/%/%20/g)
	# If scopes exists, then append them to auth_endpoint
	auth_endpoint=$auth_endpoint\&scope=$encoded_scopes
	fi

	# TODO if refresh_token exists and is valid for scopes, use refresh flow
	open $auth_endpoint
	# User is now authenticating on accounts.spotify.com...

	# Now the user gets redirected to our endpoint
	# Grab token and close browser window
	response=$(echo "HTTP/1.1 200 OK\nAccess-Control-Allow-Origin:*\nContent-Length:65\n\n<html><script>open(location, '_self').close();</script></html>\n" \| nc -l -c $port)
	code=$(echo "$response" \| grep GET \| cut -d' ' -f 2 \| cut -d'=' -f 2)

	response=$(curl -s https://accounts.spotify.com/api/token \
	-H "Content-Type:application/x-www-form-urlencoded" \
	-H "Authorization: Basic $(echo -n $client_id:$client_secret \| base64)" \
	-d "grant_type=authorization_code&code=$code&redirect_uri=http%3A%2F%2Flocalhost%3A$port%2F")

	# Useful values are
	# jq -r '.expires_in'
	# may not exist
	# jq -r '.scope'

	# I'm not actually using this yet, best not store it
	# echo $response \| jq -r '.refresh_token' > /var/tmp/spotify_refresh_token
	# TODO cache access token
	echo $response \| jq -r '.access_token'
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