Makes a device show up in spotify connect devices list, but nothing else yet

compile.sh

#!/bin/bash -ex

#Based off of https://github.com/wouterdevinck/clonos-poc-spotify/blob/master/src/go.sh
#Tested on an Rpi 1 (in a soft-float debian chroot)

libDir='lib'
libPath=$libDir'/libspotify_embedded_shared.so'

#Make lib directory
if [ ! -d $libDir ]; then
    mkdir $libDir
fi

#Download library
if [ ! -f $libPath ]; then
   url='https://github.com/sashahilton00/spotify-connect-resources/blob/master/Rocki%20Firmware/dlna_upnp/spotify/lib/libspotify_embedded_shared.so?raw=true'
   wget -O $libPath $url
fi

#Compile
gcc -L$PWD/$libDir -o run main.c -lspotify_embedded_shared -lm

#Run
export LD_LIBRARY_PATH=$PWD/$libDir:$LD_LIBRARY_PATH
./run
    

connect.py

#First run the command avahi-publish-service TestConnect _spotify-connect._tcp 4000 VERSION=1.0 CPath=/
import os
#To install flask, run pip install flask
from flask import Flask, request, abort, jsonify

app = Flask(__name__)

if os.environ.get('DEBUG'):
    app.debug = True

@app.route('/', methods=['GET', 'POST'])
def index():
    action = request.args.get('action') or request.form.get('action')
    if not action:
        return jsonify({
            'status': 301,
            'spotifyError': 0,
            'statusString': 'ERROR-MISSING-ACTION'})
    if action == 'getInfo':
        return getInfo()
    elif action == 'addUser':
        return addUser()
    else:
        return jsonify({
            'status': 301,
            'spotifyError': 0,
            'statusString': 'ERROR-INVALID-ACTION'})
        
def getInfo():
    return jsonify({
        'status': 101,
        'spotifyError': 0,
        'activeUser': '',
        'brandDisplayName': 'Test',
        'accountReq': 'PREMIUM',
        #Doesn't have any specific format (I think)
        'deviceID': '0000000000000000',
        #Not sure how these are generated (this string is just some random letters I typed)
        #Possibly generated from SpZeroConfGetVars()
        #Used to encrypt the blob used for login
        'publicKey': 'sdfkdlfgkldfoglsdjifdkljgsdkfljgklsfglkfjsngkjsfhjksfnljknnjkfldhg',
        'version': '2.0.1',
        #Valid types are UNKNOWN, COMPUTER, TABLET, SMARTPHONE, SPEAKER, TV, AVR, STB and AUDIODONGLE
        'deviceType': 'AUDIODONGLE',
        'modelDisplayName': 'TEST000',
        #Status codes are ERROR-OK (not actually an error), ERROR-MISSING-ACTION, ERROR-INVALID-ACTION, ERROR-SPOTIFY-ERROR, ERROR-INVALID-ARGUMENTS, ERROR-UNKNOWN, and ERROR_LOG_FILE
        'statusString': 'ERROR-OK',
        #Name that shows up in the Spotify client
        'remoteName': 'TestConnect'
    })
    
def addUser():
    args = request.form
    userName = args.get('userName')
    blob = args.get('blob')
    clientKey = args.get('clientKey')
    
    #Username, blob, and clientKey would be passed to SpConnectionLoginZeroConf, and then SpConnectionLoginZeroConf decrypts the blob, and calls SpConnectionLoginBlob
    #SpConnectionLoginZeroConf(userName, blob, clientKey)
    #SpConnectionLoginBlob(userName, decrypted_blob)
    
    # Would return this on success
    # return jsonify({
        # 'status': 101,
        # 'spotifyError': 0,
        # 'statusString': 'ERROR-OK'
        # })
    abort(400)
    
if __name__ == "__main__":
#Can be run on any port as long as it matches the one used in avahi-publish-service
    app.run("", 4000)

main.c

#!/bin/bash -ex

#Based off of https://github.com/wouterdevinck/clonos-poc-spotify/blob/master/src/go.sh
#Tested on an Rpi 1 (in a soft-float debian chroot)

libDir='lib'
libPath=$libDir'/libspotify_embedded_shared.so'

#Make lib directory
if [ ! -d $libDir ]; then
    mkdir $libDir
fi

#Download library
if [ ! -f $libPath ]; then
   url='https://github.com/sashahilton00/spotify-connect-resources/blob/master/Rocki%20Firmware/dlna_upnp/spotify/lib/libspotify_embedded_shared.so?raw=true'
   wget -O $libPath $url
fi

#Compile
gcc -L$PWD/$libDir -o run main.c -lspotify_embedded_shared -lm

#Run
export LD_LIBRARY_PATH=$PWD/$libDir:$LD_LIBRARY_PATH
./run
    

Notes.md

#Python Script Setup

To get the python script running, run either pip install flask or pip install -r requirements.txt if you used git clone to clone the gist

#libspotify_embedded_shared.so notes

##Using the library (still in progress) There's a compile.sh that compiles a program that calls SpInit(), but doesn't get any farther because it needs more than just the API version number (which is 4)

##Spotify appkey

An appkey (from https://devaccount.spotify.com/my-account/keys/) is passed somewhere into the library, but I haven't figured out where yet

##Library trace

This is output from running latrace on a program that uses libspotify_connect_embedded.so

###Startup

 5743     SpInit [libspotify_embedded_shared.so]  
 5743       SpSetDisplayName [libspotify_embedded_shared.so]  
 5743     SpRegisterConnectionCallbacks [libspotify_embedded_shared.so]  
 5743     SpRegisterDebugCallbacks [libspotify_embedded_shared.so]  
 5743     SpRegisterPlaybackCallbacks [libspotify_embedded_shared.so]  
 5743     SpPlaybackUpdateVolume [libspotify_embedded_shared.so]  

###Run every time devices list is opened

 5747     SpZeroConfGetVars [libspotify_embedded_shared.so]  

###After a device is selected

 5748     SpConnectionLoginZeroConf [libspotify_embedded_shared.so]  
 5748       SpConnectionLoginBlob [libspotify_embedded_shared.so]  
 5743       SpPlaybackUpdateVolume [libspotify_embedded_shared.so]  

#Updates

##3/4/15

Added info about SpConnectionLoginZeroConf, and that its directly used for login instead of SpConnectionLoginBlob
Added info about how the public key is possibly generated from SpZeroConfGetVars()

##3/6/15

Added info about needing an appkey

##3/7/15

Added SPEAKER, TV, AVR, and STB device types
Added notes about blob being encrypted

##3/8/15 Added initital program that links against the library, and some notes about it

##3/9/15 Automatically download library for compile.sh

##3/10/15 Added SpInit() struct

requirements.txt

Flask==0.10.1
Jinja2==2.7.3
MarkupSafe==0.23
Werkzeug==0.10.1
argparse==1.2.1
distribute==0.6.24
itsdangerous==0.24
wsgiref==0.1.2

spinit_struct.h

typedef struct spOptions {
    int apiVersion;
    int int1;
    void *void1;
    const void appkey;
    size_t appkeySize;
    const char *deviceID;
    char *displayName;
    const char *manufacturer;
    const char *model;
    const char deviceType;
    int int2;

} spOptions;

Can this be used to to discover a Spotify Connect device on the local network and log it in to Spotify so that it is visible in the Web API? This is what I am looking for, and others, too: https://stackoverflow.com/questions/56001560/programatically-onboard-a-spotify-connect-device-to-my-account

I'm trying to do the same thing, did it worked?

Yes, works for me with spotifyd.