I don't have a lot of time right now, but it would be important to work on unit tests. They demonstrate the quality of a code.

Is anyone interested?
Could someone help me with their achievements?

Recently my script got stuck in a loop, printing out to log many rows like this:

=== Read 0 bytes === {{timestamp}} ===

When it happens the script don't receive FCM messages from the Google server anymore and the log get flooded with these Read 0 bytes messages at a rate of hundreds per seconds, like it got stuck in a loop. The only way to recover is to kill the process and restart.

I started seeing this behavior in the 1.0.1 version, so I suspect that some change related to another recent issue could be involved. I run this server for months and never seen that in 1.0.0, but already happened three times in the last week with 1.0.1.

What is the bug?

This issue is concerning a bug with the onLoop() method.

The way of handling the onLoop timer is not correct. Indeed, it uses the timeout of the connection.
Then, each message received reset the timer.

How to reproduce this bug?

// enable the onLoop method
$test->enableOnLoopMethod(5 * 1000 * 1000); //onLoop should be called each 5 seconds

1. Launch the script
2. Wait 3 seconds and send a message from the client to the server
3. The onLoop() method will be called only 5 seconds after the message has been received

Hi,
I use your program successfully.
A question: if the script falls, it does not recover all messages received by FCM when it is restarted ! Is there a solution ?
Thank you for your work,

I need to send notification to client devices when new orders are received. Currently using FCM over HTTP. I need confirmations on delivery and respond if delivery fails with x amount of time, say if it ain't delivered within 5 minutes do X.

I don't want to mess too much with existing code on my server for now, with this library could i just run it in the background with something like nohup, and deal with failures there, with the current http sending method on my server just add the delivery receipts flag? or does the data payload have to be sent with the library?

Can you give an example please?

Hello,

I have a problem. The script works well on my local machine with PHP 7.3.7 but I get a timeout on my server with PHP 7.3.9.
Here is the error:

=== Connecting to fcm-xmpp.googleapis.com:5235 at 2019-09-05T15:58:17+0000 === 2019-09-05T15:58:17+0000 === PHP Warning: stream_socket_client(): unable to connect to tls://fcm-xmpp.googleapis.com:5235 (Connection timed out) in /var/www/vhosts/xxxx.com/httpdocs/api-test/vendor/baudev/fcm-xmpp/src/Core.php on line 118

Do you think it's a PHP problem or a configuration problem at firebase?

Many thanks,

Best regards,

Recently I experienced a parsing error of incoming FCM messages, it seems that it merged two distinct messages into one, screwing up the received data. Here's the log from the event (I obscured some sensitive data with x and tagged each read fragment to easily reference in the following explanation):

(fragment A) === Read 1179 bytes === 2019-04-18T22:44:10+0200 ===
<message to="[email protected]" from="[email protected]" type="normal"><gcm xmlns="google:mobile:data">{"data":{"b":"90-","s":"1555620234609;0;1555603200;com.whatsapp;20745|1555620234609;0;1555592400;com.motorola.camera2;11997|1555620234609;0;1555610400;SCREEN;1861856|1555620234609;0;1555549200;com.facebook.katana;2802|1555620234609;0;1555099200;SCREEN;233469|1555620234609;0;1555344000;com.android.chrome;106698|1555620234609;0;1555236000;com.google.android.youtube;1978654|1555620234609;0;1555578000;SCREEN;207177|1555620234609;0;1555178400;com.google.android.gm;30267|1555620234609;0;1555254000;SCREEN;304379|1555620234609;1;1555297200;com.google.android.gm;18098|1555620234609;0;1555444800;com.whatsapp;372120|1555620234609;0;1555092000;SCREEN;517674|1555620234609;0;1555344000;com.android.dialer;367701|1555620234609;0;1555437600;com.android.dialer;6339|1555620234609;1;1555210800;com.google.android.gm;274781|1555620234609;0;1555088400;com.whatsapp;61535|1555620234609;0;1555207200;SCREEN;646926|1555620234609;0;1555426800;com.facebook.katana;2186|1555620234609;0;1555164000;com.android.chrome;1925002|1555620234609;0;1555513200;com.android.dialer;
=== Message is fragmented because footer is missing. === 2019-04-18T22:44:10+0200 ===
=== Parsing message.. === 2019-04-18T22:44:10+0200 ===

(fragment B) === Read 611 bytes === 2019-04-18T22:44:10+0200 ===
6205|1555620234609;1;1555038000;com.android.dialer;2619646|1555620234609;0;1555336800;com.motorola.camera2;28588|1555620234609;0;1555322400;com.google.android.youtube;794373|1555620234609;0;1555272000;SCREEN;471353|1555620234609;0;1555358400;SCREEN;638027|1555620234609;0;1555120800;com.facebook.katana;1559063|1555620234609;0;1555160400;com.google.android.youtube;684137|1555620234609;0;1555149600;com.whatsapp;78854|1555620234609;0;1555192800;com.whatsapp;435216|1555620234609;0;1555502400;com.android.chrome;127568|1555620234609;0;1555160400;SCREEN;1685082|1555620234609;0;1555156800;com.facebook.katana;1870

(fragment C) === Read 1179 bytes === 2019-04-18T22:44:10+0200 ===
|1555620234609;0;1555419600;com.android.chrome;57229|1555620234609;0;1555135200;com.whatsapp;285346|1555620234609;0;1555495200;com.whatsapp;421926|1555620234609;0;1555603200;com.android.dialer;2579648|1555620234609;0;1555257600;SCREEN;432235|1555620234609;0;1555070400;SCREEN;425691|1555620234609;0;1555333200;com.whatsapp;57051|1555620234609;0;1555318800;com.facebook.katana;32503|1555620234609;0;1555506000;com.facebook.katana;19781|1555620234609;0;1555592400;SCREEN;862028|1555620234609;0;1555592400;com.android.chrome;139706|1555620234609;0;1555174800;SCREEN;2596621|1555620234609;0;1555351200;com.facebook.katana;10262|1555620234609;0;1555282800;SCREEN;339981|1555620234609;0;1555268400;SCREEN;1428175|1555620234609;3;1554087600;com.android.dialer;19299715|1555620234609;0;1555315200;SCREEN;22694|1555620234609;0;1555534800;com.facebook.katana;1079977|1555620234609;0;1555329600;SCREEN;234441|1555620234609;0;1555189200;SCREEN;721670|1555620234609;0;1555329600;com.whatsapp;1742|1555620234609;0;1555390800;com.android.dialer;2184|1555620234609;0;1555192800;com.google.android.gm;97958|1555620234609;0;1555282800;com.facebook.katana;29178|1555620234609;0;1555077600;com.whats

(fragment D) === Read 1179 bytes === 2019-04-18T22:44:10+0200 ===
app;29194|1555620234609;0;1555261200;com.facebook.katana;1732755|1555620234609;0;1555408800;com.android.dialer;40408|1555620234609;0;1555066800;SCREEN;285569|1555620234609;0;1555606800;com.android.dialer;457281|1555620234609;0;1555491600;com.whatsapp;63375|1555620234609;0;1555336800;com.android.dialer;2082|1555620234609;0;1555131600;com.whatsapp;96236|1555620234609;0;1555599600;com.android.dialer;104688|1555620234609;0;1555372800;com.android.dialer;728442|1555620234609;0;1555495200;com.android.chrome;183371|1555620234609;2;1554606000;com.motorola.camera2;215108|1555620234609;0;1555344000;com.whatsapp;292079|1555620234609;0;1555606800;com.whatsapp;965566|1555620234609;0;1555315200;com.android.chrome;2084|1555620234609;0;1555196400;SCREEN;2006413|1555620234609;0;1555138800;com.google.android.youtube;465200|1555620234609;0;1555603200;com.whatsweb.app;448730|1555620234609;0;1555448400;SCREEN;92093|1555620234609;0;1555441200;com.android.dialer;102128|1555620234609;0;1555286400;com.google.android.gm;255332|1555620234609;0;1555524000;SCREEN;313223|1555620234609;0;1555599600;com.facebook.katana;7267|1555620234609;0;1555401600;com.google.android.youtube;724|155562023460

(fragment E) === Read 1179 bytes === 2019-04-18T22:44:10+0200 ===
9;1;1555038000;com.google.android.gm;264526","d":"xxxxxxxxxxxxxxx","t":"t"},"time_to_live":86400,"from":"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","message_id":"S15556202478973","category":"com.xxxxxxxxxxxxxxxxxxxxx"}</gcm></message><message to="[email protected]" from="[email protected]" type="normal"><gcm xmlns="google:mobile:data">{"data":{"b":"90-","s":"1555620234609;0;1555171200;com.android.chrome;1141732|1555620234609;1;1555297200;com.google.android.youtube;794373|1555620234609;2;1554606000;com.android.chrome;6016743|1555620234609;0;1555412400;com.google.android.youtube;332522|1555620234609;0;1555066800;com.whatsapp;165104|1555620234609;1;1555556400;com.facebook.katana;4668860|1555620234609;0;1555257600;com.android.dialer;55717|1555620234609;1;1555383600;com.google.android.deskclock;2864874|1555620234609;1;1555383600;com.google.android.youtube;1876153|1555620234609;0;1555293600;SCREEN;3599|1555620234609;1;1555556400;com.google.android.youtube;2585808|1555620234609;0;1555401600;com.whatsapp;91751|1555620234609;0;1555416000;
=== Message is not fragmented. === 2019-04-18T22:44:10+0200 ===

(fragment F) === Read 354 bytes === 2019-04-18T22:44:10+0200 ===
SCREEN;32476|1555620234609;0;1555210800;SCREEN;81794","d":"xxxxxxxxxxxxxxx","t":"t"},"time_to_live":86400,"from":"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","message_id":"S15556202482837","category":"com.xxxxxxxxxxxxxxxxxxxxx"}</gcm></message>
=== Message parsed succesfully. === 2019-04-18T22:44:10+0200 ===
=== Sent 277 bytes === 2019-04-18T22:44:10+0200 ===
<message id=""><gcm xmlns="google:mobile:data">{"to":"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx","message_id":"S15556202482837","message_type":"ack"}</gcm></message>

As you can see in the fragment E there is a closing message footer followed by a new message header, and that new message is closed in the fragment F. So I expect to get these two messages:

message 1: from concatenation of fragments A + B + C + D + (part of) E
message 2: from concatenation of fragments (part of) E + F

Instead, in the onReceiveMessage i get message 1 from concatenation of fragments A + B + C + D + F, that's obviously wrong! I don't even know what the content of fragment E would have generated, since my script crashed on receiving message 1 because the contained data were corrupted by the wrong concatenation.

I hope I well described what's happening here, let me know if I can provide any other useful information.

As image above, I can't install the package.
My environment is:
PHP version: 7.0-cli
Ubuntu version: 16.04

Any suggestion?
Thank you!!

Do you mean after I install your fcm-xmpp, my computer will run as a server and also as a database?
In my case, I have two phones and one laptop.
I want mobile phone A to upstream the message to the laptop, then mobile phone B will downstream the message from the laptop.
Should I set another device as database?
Thank you!