[API] SamyGO web API

Here are software that related with Samsung H series TVs.
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mad_ady
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[API] SamyGO web API

Post by mad_ady » Mon Jul 10, 2017 2:21 pm

I've developed a simplified API to interact with some common libraries that run on SamyGO (B/C/D/E/H) and I'm releasing it to the community, for tests, ideas and improvements :)

You can get it here:
https://github.com/mad-ady/samygo-web

SamyGO web API

The Web API exposes some of SamyGO's plugins to external clients. The API tries to return data in json format where possible, but uses image/jpg for screenshots.

Features:
  • Get TV State and current program details via libLogChannel
  • Control the TV via samyGOrc with remote actions
  • Reboot the TV
  • Get a screenshot of what is on the screen via libScreenShot
  • Compatibility with libSoftPowerOff (viewtopic.php?t=8987&start=230)
Dependencies:
Installation:

Download to your rooted SamyGO TV:

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cd /tmp
curl -k https://codeload.github.com/mad-ady/samygo-web/zip/master > samygo-web-api.zip
Unzip

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unzip samygo-web-api.zip
Run the installation script:

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./samygo-web-master/installer.sh
LibSoftPowerOff coexistence:
If you have libSoftPowerOff enabled in your TV and you use the screenshot functionality, in order not to inject the screenshot command when the display is off you can signal that the TV is in soft-off mode by configuring libSoftPowerOff.so to run two scripts on power on/off. When you load the libSoftPowerOff library, use the following options:

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CMD_ON:/mnt/scripts/onPowerOn.sh CMD_OFF:/mnt/scripts/onPowerOff.sh 
The onPowerOn.sh/onPowerOff.sh scripts (among other functionality) should set a flag by creating a file called

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/dtv/tvIsSleeping
:
  • onPowerOn.sh: rm -f /dtv/tvIsSleeping
  • onPowerOff.sh: touch /dtv/tvIsSleeping
If you don't use libSoftPowerOff, the TV powers off and the web API is no longer accessible.

Startup
:

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/mnt/etc/init.d/99_99_samygo_web_api.init start
On first run the startup script will generate a unique challenge which will be printed by the startup screen. This challenge is generated in

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/mnt/etc/samygo-web-api.challenge
. You will need to supply this challenge string on all requests. The security is equivalent to HTTP Simple Auth and should protect you against somebody scanning your system, but will not protect you from a man-in-the middle attack! Also, don't use over unencrypted internet!

API Usage
:

to get the current information, request for action=CHANNELINFO:

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$ wget -O - "http://tv-ip:1080/cgi-bin/samygo-web-api.cgi?challenge=oyd4uIz5WWAkWPo5MzfxBFraI05C3FDorSPE7xiMLCVAQ40a&action=CHANNELINFO"

{"source":"TV (0)","pvr_status":"NONE","powerstate":"Normal","tv_mode":"Cable (1)","volume":"9","channel_number":"45","channel_name":"Nat Geo HD","program_name":"Planeta dezastrelor","resolution":"1920x1080","error":false}
to reboot TV request for action=REBOOT:

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$ wget -O - http://tv-ip:1080/cgi-bin/samygo-web-api.cgi?challenge=oyd4uIz5WWAkWPo5MzfxBFraI05C3FDorSPE7xiMLCVAQ40a&action=REBOOT
to send key events request for action=KEY and key=KEY_1:

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$ wget -O - http://tv-ip:1080/cgi-bin/samygo-web-api.cgi?challenge=oyd4uIz5WWAkWPo5MzfxBFraI05C3FDorSPE7xiMLCVAQ40a&action=KEY&key=KEY_1

{"error":false,"message":"Sent key 4"}
The list and codes of supported keys are available inside the script in the $KEYS array: https://github.com/mad-ady/samygo-web/b ... eb-api.cgi

to get a snapshot from the TV request for action=SNAPSHOT:

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$ wget -O /tmp/image.jpg http://tv-ip:1080/cgi-bin/samygo-web-api.cgi?challenge=oyd4uIz5WWAkWPo5MzfxBFraI05C3FDorSPE7xiMLCVAQ40a&action=SNAPSHOT
Real world applications examples: Integrating your TV into Home Assistant: viewtopic.php?f=79&t=11882
H6400, firmware 2602.2 downgraded to 2130

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lekron
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Re: [API] SamyGO web API

Post by lekron » Fri Jul 14, 2017 3:34 pm

Nice project man!
UE40H6740 T-MST2130

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mad_ady
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Re: [API] SamyGO web API

Post by mad_ady » Mon Jul 17, 2017 5:54 am

I accept push requests for bug fixes or new features. Also, from what I've read the functionality exists also on tizen TVs, but with different APIs. If somebody can give me shell access to their J+ tv (or at least some outputs), I can update the API as well.
H6400, firmware 2602.2 downgraded to 2130

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prairie
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Re: [API] SamyGO web API

Post by prairie » Mon Oct 30, 2017 3:10 am

I tested this on F-series for fun and works nicely with CHANNELINFO and REBOOT. SNAPSHOT returns a 0 length file (lib works ok on TV)

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Connecting to 192.168.0.15:1080... connected.
HTTP request sent, awaiting response... 200 OK
Length: 0 [image/jpeg]
Saving to: ‘STDOUT’
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T-FXPAKUC 1206.3 + SamyGO

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mad_ady
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Re: [API] SamyGO web API

Post by mad_ady » Mon Oct 30, 2017 8:24 am

Ok, can you tell me what parameters you use to get a screenshot on your TV? The parameters I used are for H series and may differ.

Also, does cjpeg run on your TV?
H6400, firmware 2602.2 downgraded to 2130

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prairie
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Re: [API] SamyGO web API

Post by prairie » Mon Oct 30, 2017 12:47 pm

Hi

For screenshot I have a key mapped to:

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samyGOso -d -A -B -l /mnt/opt/privateer/usr/libso/libScreenShot.so PATH:/mtd_rwcommon/Screenshots ALERT SOURCE ALT
output of "cjpeg":

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cjpeg: error while loading shared libraries: libjpeg.so.62: cannot open shared object file: No such file or directory
I can find libjpeg.so, libjpeg.so.8, and libjpeg.so.8.0.2 at /mtd_exe/Runtime/lib/
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"BrickMaster 2015"

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mad_ady
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Re: [API] SamyGO web API

Post by mad_ady » Mon Oct 30, 2017 3:11 pm

Ok, I'll look into it. Can libScreenShot create jpeg screenshots on your system? On mine it crashes the TV, so that's why I had to use cjpeg.
H6400, firmware 2602.2 downgraded to 2130

zoelechat
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Re: [API] SamyGO web API

Post by zoelechat » Mon Oct 30, 2017 3:43 pm

mad_ady wrote:
Mon Oct 30, 2017 3:11 pm
Can libScreenShot create jpeg screenshots on your system? On mine it crashes the TV
Even using ALT switch?

...or if you need static cjpeg maybe?
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prairie
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Re: [API] SamyGO web API

Post by prairie » Mon Oct 30, 2017 4:35 pm

mad_ady wrote:
Mon Oct 30, 2017 3:11 pm
Ok, I'll look into it. Can libScreenShot create jpeg screenshots on your system? On mine it crashes the TV, so that's why I had to use cjpeg.
Thanks and yes but only using ALT method. This was best method for my TV though I can't remember what the problem with bmp's was.
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mad_ady
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Re: RE: Re: [API] SamyGO web API

Post by mad_ady » Wed Nov 01, 2017 6:07 pm

zoelechat wrote:
mad_ady wrote:
Mon Oct 30, 2017 3:11 pm
Can libScreenShot create jpeg screenshots on your system? On mine it crashes the TV
Even using ALT switch?

...or if you need static cjpeg maybe?
Sadly yes, even with ALT switch. I will look into cjpeg dependency as well, but if the library already produces jpegs, it shouldn't be needed.
H6400, firmware 2602.2 downgraded to 2130

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