Query Message implmentation

[knvpk]

Hi, Im trying to get the previous chat list of a contact or group, by debugging the whatsapp web im able to see that is related to query, as below

[
    "query",
    {
        count: "50",
        epoch: "5",
        index: "7A7B3E4A12A9F5BB266B1BBDE95EDF59",
        kind: "before",
        owner: "true",
        participant: undefined,
        type: "message",
        jid: {
            server: "c.us",
            user: "919133xxxxx",
            _serialized: "919133xxxxx@c.us"
        }

    },
    undefined
]

so im trying to implement it but getting error as writer:writeString passed non-string/wid type:, i think because the jid is Object in my message.

Can you tell me how to proceed furthur.

[ndunks]

You can convert JID/WID object to string with this function

[knvpk]

That function is returning a string combining values in server and user, but in original whatsapp web it is sending as object, if i use your helper function it will send as string which will not work for whatsapp server.

[ndunks]

can you attach the dump from web whatsapp? or point me to the code in web whatsapp js?

[ndunks]

Also, you not attach your code so I can't check it. Some binary need metric byte or it will fail. that byte is not part of the encrypted content.

[knvpk]

Im actually cloned the whatsappweb and debugging it please check below screenshots to understand

This is there where i kept console.log for read and write places.

Total expanded console log object when writing

[knvpk]

I added below function in index.ts under whatsapp folder after queryStatus function thats it.

    queryMessage() {
        return this.query({
            count: "50",
            epoch: "5",
            index: "7A7B3E4A12A9F5BB266B1BBDE95EDF59",
            kind: "before",
            owner: "true",
            participant: undefined,
            type: "message",
            jid: widHelper.serialize({
                server: "c.us",
                user: "919133985985",
            })
        })
    }

[ndunks]

AFAIK, JID/WID is sent as string to whatsapp server. I never seen it send as object, you can look into binary writer in whatsapp code. It does replace all WID to string with correct "suffix" like replacing @c.us to @s.whatsapp.net.

If you sure that WID is sent as object, so you can try to change that suffix.

Also the group id is differ from user WID, something like {creator}-{timestamp}@c.us

[knvpk]

Im using the WID helper but getting the 401 status do you have any idea. Im using the same account in whatsapp web and this lib also. please check below logs i have annotated required parts

[knvpk]

I changed the metric in interface from QUERY_MESSAGES to QUERY_MESSAGE

WaJs/src/whatsapp/interfaces.ts

Line 257 in a900da7

QUERY_MESSAGES = 7,

because the type should be converted to query_{type}.

After doing that it is working got response from whatsapp server but another problem of handling binary for message. please check below screenshots

Sending metric as 7

Response is 16 messages but unable to handle. what to do here.

[knvpk]

Ans also when second response came (which has actual content), the callback is not called.

[ndunks]

Ah yes, just add little patch to not remove handle. make the handle function remove it self after all data received. Look here

[tmandinyenya]

@pavankumarkatakam can you kindly guide me on how I can clone the whatsapp web and run locally as you are doing. I would like to learn and test it too.