Authorization to the firebase's https://iid.googleapis.com/iid/v1:batchImport

Vanar · September 13

I always received FDeviceToken from the request https://iid.googleapis.com/iid/v1:batchImport

HTTP HEADERS:
   Content-Type: application/json
   Authorization: key=YOUR_SERVER_KEY
BODY:
   {
   "application": "com.company.app",
"sandbox":true,
"apns_tokens":[ "7c6811bfa1e89c739c5862122aa7ab68fc4972dea7372242f74276a5326f...." ]
}

Answer:
{ "results":
[ {
"registration_token": "ejXQlECjCeI:APA91bE7oaUhaFnGyl77lFrySdEaWxocM0oj81uNezACX1wsZXiTyL4OYo5ssvFjjWYpFymMVyqBccboVcwTTW2rvykOmV_CABDM7rTIRCiJFl_9ngf7SrDSYoFouwNj69JSwlH.....",
"apns_token": "7c6811bfa1e89c739c5862122aa7ab68fc4972dea7372242f74276a5326f....",
"status": "OK"
}
]
}

But recently this request stopped working (authorization required).

I get the answer:
{ "error": "Not authenticated or unauthorized"}

How to solve this problem?
How to rewrite the query?

Most likely it is related to this

John van de Waeter · October 14

Hi Vanar,
I'm facing the same problem... did you find a solution?

cheers, John

Dave Nottage · October 14

See this documentation. Authorization is now via an OAuth2 token - there is a link in the documentation to details about methods for obtaining the token.

John van de Waeter · October 15

I wonder why Google and Apple are making things more difficult.... :/

John van de Waeter · October 16

On 10/14/2024 at 9:37 PM, Dave Nottage said:

See this documentation. Authorization is now via an OAuth2 token - there is a link in the documentation to details about methods for obtaining the token.

Dave,
I'm trying Kastri now. Again 🙂

One thing I must do is download a copy of firebase.zip (SDK for iOS) from github. But both 11.2.0 as 11.3.0 give me an error when I try to unzip them: Invalid Zip-file. Tried on both win10 and win11.
I tried to ask a question in the issues section of this github-repo, but my question does not appear in the discussion. Dunno why, no error reported.
So I'm trying here: do you know an alternative to download this firebase.zip?
Thanks,

John

Dave Nottage · October 16

36 minutes ago, John van de Waeter said:

So I'm trying here: do you know an alternative to download this firebase.zip?

There's this link at this page, however it might just be a redirect to the latest version (11.3.0)

I notice a huge difference in size between 11.2.0 and 11.3.0 - 319MB vs 612MB!!

John van de Waeter · October 16

Yep, lots of other code in this file. But it contains the original firebase.zip, which in turn has the same problem....

Dave Nottage · October 16

6 hours ago, John van de Waeter said:

Yep, lots of other code in this file. But it contains the original firebase.zip, which in turn has the same problem....

Both unzip OK on macOS, so I tried to "re-zip" the 11.2.0 version on Windows, but that causes Explorer to crash 😞

I've asked a question about it in their Slack workspace, since all the other reporting mechanisms don't seem to cover this category.

Vanar · October 18

On 10/14/2024 at 5:28 PM, John van de Waeter said:

Hi Vanar,
I'm facing the same problem... did you find a solution?

cheers, John

Hi, John
I didn't find a normal solution
I temporarily solved the problem like this:
They give me a ready-made authorization key: ya29.c.c0ASRK0Ga_4Z1QIYsqufOCVdT ...., created on the server using PHP
And I slip it into my request ...

John van de Waeter · October 18

12 minutes ago, Vanar said:

Hi, John
I didn't find a normal solution
I temporarily solved the problem like this:
They give me a ready-made authorization key: ya29.c.c0ASRK0Ga_4Z1QIYsqufOCVdT ...., created on the server using PHP
And I slip it into my request ...

Lol....
I too had a hard fight to send those notifications to the v1-google fcm server.... I never realized that the converting part (apns->fcm) also required this new approach...

Having apps online that suddenly don't receive pn's anymore forces one to be creative....

I'm now trying the Kastri-path.

Vladsrb · October 18

Hi,

i was facing with the same problem...
This is my workable solution, in short 🙂

uses System.Net.HttpClient, JOSE.Core.Builder, JOSE.Core.JWT, JOSE.Core.JWA, JOSE.Types.Bytes, JOSE.Types.JSON, JOSE.Signing.RSA, JOSE.Core.JWK
JOSE is taken from https://github.com/paolo-rossi/delphi-jose-jwt

Info:
FGoogleProjectID : is your project ID like 'name-95dc3e3' (console.cloud.google.com)
FGoogleServiceEmail: like 'firebase-adminsdk-9tm7h@XXXXXXXX.iam.gserviceaccount.com'
FGoogleServicePrivateKey: '-----BEGIN PRIVATE KEY-----...' taken from the JSON file when you create a key for a Google service account (you need to remove the \n characters from the key)

function CreateGoogleTokenString: String;
begin
Result := '';
var JWToken: TJWT := TJWT.Create(TJWTClaims);
try
try
JWToken.Claims.Issuer := FGoogleServiceEmail;
JWToken.Claims.SetClaim('scope', 'https://www.googleapis.com/auth/firebase.messaging');
JWToken.Claims.Audience :='https://oauth2.googleapis.com/token';
JWToken.Claims.IssuedAt := Now;
JWToken.Claims.Expiration := IncMinute(Now, 60); // not more than 60
var AJWKKey: TJWK := TJWK.Create(FGoogleServicePrivateKey);
var LSignature: TJOSEBytes := TJOSE.SerializeCompact(AJWKKey, TJOSEAlgorithmId.RS256, JWToken);
Result := LSignature.AsString;
except
on e: exception do
raise Exception.Create('Error creating Google Token String: ' + E.Message);
end;
finally
FreeAndNil(JWToken);
end;
end;

function GetOAuthToken: String;
var
LResponse: IHTTPResponse;
LFormUrlencoded: TStringList;
LRequest: THTTPClient;
begin
Result := '';
LRequest := THTTPClient.Create;
LFormUrlEncoded := TStringList.Create;
try
try
var AToken: String := GCCreateGoogleTokenString;
LFormUrlEncoded.Add('grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer');
LFormUrlEncoded.Add('assertion=' + AToken);
LResponse := LRequest.Post('https://oauth2.googleapis.com/token', LFormUrlencoded);
if LResponse.StatusCode = 200 then
begin
Result := LResponse.ContentAsString();
var JSONObj: TJSONObject := TJSONObject.ParseJSONValue(Result) as TJSONObject;
try
if Assigned(JSONObj) then
Result := JSONObj.GetValue<string>('access_token');
finally
JSONObj.Free;
end;
end;
except
on e: exception do
begin
Result := '';
raise Exception.Create('Error getting Google Token: ' + E.Message);
end;
end;
finally
LFormUrlencoded.Free;
LRequest.Free;
end;
end;

sending a push message with RESTClient:

function CreateBodyMessageJSON(AFBToken: String): String;
// https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#Notification
begin
var AJSONMain: TJSONObject := TJSONObject.Create;
try
var AJSONMessage: TJSONObject := TJSONObject.Create;
AJSONMessage.AddPair('token', AFBToken);

// for all
var AJSONNotification: TJSONObject := TJSONObject.Create;
AJSONNotification.AddPair('body', FBody);
AJSONNotification.AddPair('title', FTitle);
AJSONMessage.AddPair('notification', AJSONNotification);

// for Android
var AJSONNotification1: TJSONObject := TJSONObject.Create;
AJSONNotification1.AddPair('sound', 'default');
// AJSONNotification1.AddPair('notification_count', TJSONNumber.Create(1)); // if needed
var AJSONAndroid: TJSONObject := TJSONObject.Create;
AJSONAndroid.AddPair('notification', AJSONNotification1);
AJSONMessage.AddPair('android', AJSONAndroid);

// for IOS
var AJSONAps: TJSONObject := TJSONObject.Create;
AJSONAps.AddPair('sound', 'default');
AJSONAps.AddPair('badge', TJSONNumber.Create(1)); // Show badge on app icon on IOS
var AJSONPayload: TJSONObject := TJSONObject.Create;
AJSONPayload.AddPair('aps', AJSONAps);
var AJSONApns: TJSONObject := TJSONObject.Create;
AJSONApns.AddPair('payload', AJSONPayload);
AJSONMessage.AddPair('apns', AJSONApns);

AJSONMain.AddPair('message', AJSONMessage);
Result := AJSONMain.ToJSON;
finally
AJSONMain.Free;
end;
end;

RESTClientPushmessage.BaseURL := 'https://fcm.googleapis.com/v1/projects/' + FGoogleProjectID + '/messages:send';
RESTRequestPusMessage.Params.ParameterByName('Authorization').Value := 'Bearer ' + GCGetOAuthToken; // pkHTTPHEADER
RESTRequestPusMessage.Params.ParameterByName('Content-Type').Value := 'application/json' // pkHTTPHEADER
RESTRequestPusMessage.Params.ParameterByName('body').Value := CreateBodyMessageJSON(AFireBaseToken); // pkREQUESTBODY
RESTRequestPusMessage.Execute;

If i miss something let me know...

For reading FB token on IOS i use: Firebase SDK for IOS 6.28 (working on Delphi 12.2)

Dave Nottage · October 18

On 10/16/2024 at 8:54 PM, John van de Waeter said:

But both 11.2.0 as 11.3.0 give me an error when I try to unzip them: Invalid Zip-file. Tried on both win10 and win11.

A follow-up to this: I have contacted their support team, who requested that I provide a video demonstrating the problem 🙄. I have since replied, asking them if they really are incapable of doing two simple steps (Using Windows: download, and try to open) to replicate it themselves.

John van de Waeter · October 19

17 hours ago, Dave Nottage said:

(Using Windows: download, and try to open) to replicate it themselves.

I used WinZip to unzip the archive, which allowed me to skip files with bad filenames.

I figured if those filenames are not allowed in Windows, these files are probably not used anyway.

It worked.

ps, Dave, if I have questions about Kastri, should I ask them here?

Edited October 19 by John van de Waeter

Dave Nottage · October 19

9 hours ago, John van de Waeter said:

Dave, if I have questions about Kastri, should I ask them here?

If they're actual issues, I'd rather them being reported here. I'm sure it's perfectly alright to ask questions in this forum, though.

Vanar · October 20

On 10/18/2024 at 6:24 PM, Vladsrb said:

Hi,

i was facing with the same problem...
This is my workable solution, in short 🙂

uses System.Net.HttpClient, JOSE.Core.Builder, JOSE.Core.JWT, JOSE.Core.JWA, JOSE.Types.Bytes, JOSE.Types.JSON, JOSE.Signing.RSA, JOSE.Core.JWK
JOSE is taken from https://github.com/paolo-rossi/delphi-jose-jwt

Info:
FGoogleProjectID : is your project ID like 'name-95dc3e3' (console.cloud.google.com)
FGoogleServiceEmail: like 'firebase-adminsdk-9tm7h@XXXXXXXX.iam.gserviceaccount.com'
FGoogleServicePrivateKey: '-----BEGIN PRIVATE KEY-----...' taken from the JSON file when you create a key for a Google service account (you need to remove the \n characters from the key)

function CreateGoogleTokenString: String;
begin
Result := '';
var JWToken: TJWT := TJWT.Create(TJWTClaims);
try
try
JWToken.Claims.Issuer := FGoogleServiceEmail;
JWToken.Claims.SetClaim('scope', 'https://www.googleapis.com/auth/firebase.messaging');
JWToken.Claims.Audience :='https://oauth2.googleapis.com/token';
JWToken.Claims.IssuedAt := Now;
JWToken.Claims.Expiration := IncMinute(Now, 60); // not more than 60
var AJWKKey: TJWK := TJWK.Create(FGoogleServicePrivateKey);
var LSignature: TJOSEBytes := TJOSE.SerializeCompact(AJWKKey, TJOSEAlgorithmId.RS256, JWToken);
Result := LSignature.AsString;
except
on e: exception do
raise Exception.Create('Error creating Google Token String: ' + E.Message);
end;
finally
FreeAndNil(JWToken);
end;
end;

function GetOAuthToken: String;
var
LResponse: IHTTPResponse;
LFormUrlencoded: TStringList;
LRequest: THTTPClient;
begin
Result := '';
LRequest := THTTPClient.Create;
LFormUrlEncoded := TStringList.Create;
try
try
var AToken: String := GCCreateGoogleTokenString;
LFormUrlEncoded.Add('grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer');
LFormUrlEncoded.Add('assertion=' + AToken);
LResponse := LRequest.Post('https://oauth2.googleapis.com/token', LFormUrlencoded);
if LResponse.StatusCode = 200 then
begin
Result := LResponse.ContentAsString();
var JSONObj: TJSONObject := TJSONObject.ParseJSONValue(Result) as TJSONObject;
try
if Assigned(JSONObj) then
Result := JSONObj.GetValue<string>('access_token');
finally
JSONObj.Free;
end;
end;
except
on e: exception do
begin
Result := '';
raise Exception.Create('Error getting Google Token: ' + E.Message);
end;
end;
finally
LFormUrlencoded.Free;
LRequest.Free;
end;
end;

sending a push message with RESTClient:

function CreateBodyMessageJSON(AFBToken: String): String;
// https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#Notification
begin
var AJSONMain: TJSONObject := TJSONObject.Create;
try
var AJSONMessage: TJSONObject := TJSONObject.Create;
AJSONMessage.AddPair('token', AFBToken);

// for all
var AJSONNotification: TJSONObject := TJSONObject.Create;
AJSONNotification.AddPair('body', FBody);
AJSONNotification.AddPair('title', FTitle);
AJSONMessage.AddPair('notification', AJSONNotification);

// for Android
var AJSONNotification1: TJSONObject := TJSONObject.Create;
AJSONNotification1.AddPair('sound', 'default');
// AJSONNotification1.AddPair('notification_count', TJSONNumber.Create(1)); // if needed
var AJSONAndroid: TJSONObject := TJSONObject.Create;
AJSONAndroid.AddPair('notification', AJSONNotification1);
AJSONMessage.AddPair('android', AJSONAndroid);

// for IOS
var AJSONAps: TJSONObject := TJSONObject.Create;
AJSONAps.AddPair('sound', 'default');
AJSONAps.AddPair('badge', TJSONNumber.Create(1)); // Show badge on app icon on IOS
var AJSONPayload: TJSONObject := TJSONObject.Create;
AJSONPayload.AddPair('aps', AJSONAps);
var AJSONApns: TJSONObject := TJSONObject.Create;
AJSONApns.AddPair('payload', AJSONPayload);
AJSONMessage.AddPair('apns', AJSONApns);

AJSONMain.AddPair('message', AJSONMessage);
Result := AJSONMain.ToJSON;
finally
AJSONMain.Free;
end;
end;

RESTClientPushmessage.BaseURL := 'https://fcm.googleapis.com/v1/projects/' + FGoogleProjectID + '/messages:send';
RESTRequestPusMessage.Params.ParameterByName('Authorization').Value := 'Bearer ' + GCGetOAuthToken; // pkHTTPHEADER
RESTRequestPusMessage.Params.ParameterByName('Content-Type').Value := 'application/json' // pkHTTPHEADER
RESTRequestPusMessage.Params.ParameterByName('body').Value := CreateBodyMessageJSON(AFireBaseToken); // pkREQUESTBODY
RESTRequestPusMessage.Execute;

If i miss something let me know...

For reading FB token on IOS i use: Firebase SDK for IOS 6.28 (working on Delphi 12.2)

Hi, Vladsrb!

I tried your solution
It works great on Windows!

But I need to run it on iOS
"-For reading FB token on IOS i use: Firebase SDK for IOS 6.28 (working on Delphi 12.2)"

Could you please describe the process in more detail:
How do I use Firebase SDK for IOS 6.28,
where can I download Firebase SDK (GetIt doesn't work for me for some reason),
where and what links should I write in the project?

Dave Nottage · October 20

3 hours ago, Vanar said:

But I need to run it on iOS

Why do you need to send push messages from an iOS device? It's a very bad idea to have private key info in an iOS app. In a web server (where messages should be sent from), the executable (and private key) is (or at least should not be) accessible externally.

3 hours ago, Vanar said:

How do I use Firebase SDK for IOS 6.28,
where can I download Firebase SDK (GetIt doesn't work for me for some reason),

From here: https://github.com/firebase/firebase-ios-sdk/releases/download/CocoaPods-6.28.0/Firebase.zip
..but the code example above which sends messages does not require the iOS SDK, which is used for receiving messages.

Vanar · October 21

11 hours ago, Dave Nottage said:

Why do you need to send push messages from an iOS device? It's a very bad idea to have private key info in an iOS app. In a web server (where messages should be sent from), the executable (and private key) is (or at least should not be) accessible externally.

I agree, but I just wanted to test it.
On iOS, the error is:

Dave Nottage · October 21

21 minutes ago, Vanar said:

On iOS, the error is:

Apparently it's because Indy does not have SSL bindings for encryption on iOS. See this issue. Perhaps @Remy Lebeau can comment.

Vladsrb · October 21

17 hours ago, Vanar said:

How do I use Firebase SDK for IOS 6.28

Currently i also get Internal server Error for GetIt, so for FB SDK you can use the link provided by Dave Nottage.

For reading FB token from IOS app using FB SDK: Manual

Hint: When you add Project/Deployment - GoogleService-Info.plist (downloaded from Firebase for IOS) - check 'Remote path' column, must be: .\

Sign In

Authorization to the firebase's https://iid.googleapis.com/iid/v1:batchImport

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