Changing 5M communication to new Rest-Api

[iherbak]

Description

The communication is changed from serial to http based.
Two new user inputs ares added to the printer config dialog.
Those are required for proper calls.

Serial number (Sorozatszám) and Printer ID (Nyomtató ID) are thw two fields in question.

Ran the same github actions on my fork to build the changes. Also using this version myself since i created it.

[SoftFever]

@iherbak
Thanks for the PR.
Can you please provide more information of this PR(and why)?
What impact does the proposed change have as I noticed you have changed other printer's profiles

[iherbak]

@SoftFever Hi, the new API added to the Flashforge 5M series using a Printer Id and an Activation key pair to guarantee the request is for the specified machine. For this purpose i added new UI elements for the user, and also added the Translations for the new "Printer ID". The previous version was a serial based and the new one is eliminates the large file transferring issues.

It was not clear to me how the profiles are used in code and added the fields for all the configs to avoid parsing errors.
If these only neccessary to be added to the Flashforge profile i could revert those changes.

Please advise,
iherbak

[Klohto]

Unfortunately, while this would be great addition, the current implementation isn't functional for most users.

I'm not sure why, but most 5M (Pro) have open port 8899. I have yet so see 8898 (like you have) in the wild. It might be due to FW differences, but I'm unsure. The original FlashForge DLL implements fnet::ScanLanDev::scanDev() which mitigates this and returns printers on LAN with corresponding ports.

---

Anyway, there is still additional barrier before the auth goes through.
I'm on 2.7.5 (latest) on my 5M Pro and the printer doesn't let the auth through.

Compiled your changes, but replaced the port with 8899 and

Could not connect to Flashforge: curl:Server returned nothing (no headers, no data):
Empty reply from server
[Error 52]

TCP dump

Host: 192.168.1.105:8899
User-Agent: OrcaSlicer/2.3.0-dev
X-BBL-Client-Name: OrcaSlicer
X-BBL-Client-Type: slicer
X-BBL-Client-Version: 01.09.05.51
X-BBL-Device-ID: ff4cf716-c754-4776-80b9-0cac8f12fb6c
X-BBL-Language: en-US
X-BBL-OS-Type: macos
X-BBL-OS-Version: 15.1.1
Accept: application/json
Content-Length: 55
Content-Type: application/x-www-form-urlencoded

{"serialNumber":"SNMOMREDACTED","checkCode":"REDACTED"}
15:36:04.309748 IP 192.168.1.105.8899 > 192.168.1.104.64518: Flags [.], ack 456, win 4045, options [nop,nop,TS val 189153467 ecr 1748916250], length 0
E..4.{@.@..&...i...h"...S....B.
...........
[email protected]>X.

As you can see, the server ACKs the request, but won't do anything else.

Basic curl CLI that should replicates Orca's behavior doesn't change the outcome, it's still without response.

curl -vvv -X POST \
  -H "Accept: application/json" -H "Content-Type: application/json" \
  -d '{"serialNumber":"REDACTED","checkCode":"REDACTED"}' \
  http://192.168.1.105:8899/product

---

I'm curious what FW version are you running?

[iherbak]

I'm on the latest 2.7.6.
Your Printer should be in Lan only mode.
8899 is the port used to communicate with Serial TCP connection.
8898 is where the REST api listens. Yes it is new and added lately, and Orca-Flashforge uses it to communicate with the printer. In fact they are using IGMPv3 and you should join to 225.0.0.9 group and send a message. In turn you will get replies with serial number and ip address from all the machines available on your local network.
To be able to communicate with the printer(s) the user should input the Printer Id of the machine(s).

Unfortunatelly i don't know which firmware version is the first that started the support of the new communication way.

[Klohto]

Indeed, 2.7.6 is latest, sorry for the typo.

Switched to LAN only mode to test it out and yep it works!
nmap after LAN switch:

Not shown: 65532 closed tcp ports (conn-refused)
PORT     STATE SERVICE
8080/tcp open  http-proxy
8898/tcp open  unknown
8899/tcp open  ospf-lite

Curl response is also success

curl -X POST \
  -H "Accept: application/json" -H "Content-Type: application/json" \
  -d '{"serialNumber":"REDACTED","checkCode":"REDCATED"}' \
  http://192.168.1.105:8898/product
  
{"code":0,"message":"Success","product":{"chamberTempCtrlState":0,"externalFanCtrlState":1,"internalFanCtrlState":1,"lightCtrlState":1,"nozzleTempCtrlState":1,"platformTempCtrlState":1}}

Couldn't get the IGMP working, but I can see the device joining 225.0.0.9 group. It just ignores my messages.

---

So far, I managed to salvage these URLs:

• /checkCode
• /product
• /detail
• /control - couldn't find the expected JSON structure, but light, temperature, fan, print and job should all be supported
• /uploadGcode - expects multipart
• /gcodeList
• /gcodeThumb
• /printGcode
• /getThum

And earliest FW supporting Rest API is 2.6.6-2.2.3-20240428

---

I think it would make sense to keep both behaviors in Orca, because it requires switching the printer to LAN mode only. Previous approach allows both LAN and external connections. All the user has to do is input the printer IP and click on print.

[Klohto]

Nevermind! @CopeTypes is already doing the reversing on https://github.com/CopeTypes/ff-5mp-api

[iherbak]

Ok i see it. I also reverse engineered and added the bare minimum to make it work. I have no time and enough know-how in c++ to add a full UI integrated into Orca, however i saw all the api endpoints as well. I have A POC that capable of using the IGMP group written in c++ in case anybody interested.

[Y0uwin]

Hello iherbak, i preapologize as i am very new to both github and flashforge printing

using the orca Slicer 2.2 and addint my device i was able to connect to my printer
however using the 2.3 dev im unable to

im unsure as to what i might be messing up so any additional information would be greatly appreciated

ive tried removing the serial number and adding it to the printer ID
have the serial number for both serial and printer ID
ive had them blank
Ive tried manually adding the port8898 and still wont connect

UPDATE*****

duh lol thank you

[iherbak]

Please follow the instructions written on the auto release page here https://github.com/iherbak/OrcaSlicer/releases/tag/Latest Y0uwin ***@***.***> (időpont: 2024. dec. 15., V, 1:22) ezt írta:

…

Hello iherbak, i preapologize as i am very new to both github and flashforge printing using the orca Slicer 2.2 and addint my device i was able to connect to my printer however using the 2.3 dev im unable to image.png (view on web) <https://github.com/user-attachments/assets/88e43f70-c50a-453f-a3b6-3744263b4aa0> im unsure as to what i might be messing up so any additional information would be greatly appreciated ive tried removing the serial number and adding it to the printer ID have the serial number for both serial and printer ID ive had them blank Ive tried manually adding the port8898 and still wont connect — Reply to this email directly, view it on GitHub <#7642 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABH6KN3FYDCYK7K74RWWUCL2FTDUXAVCNFSM6AAAAABS4OLIXSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDKNBTGM4DOMJVGI> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Y0uwin]

again sorry if im being a bother but for the device tab and refusing to connect would i need to install a fork to be able to view the camera through here or is it in the works?