How to use the search bar ";xxx" commands to launch an app? - Page 3

coplate · 08-22-2017, 08:52 PM

Just downgraded to 5.7.4 factory on my PW3 from 5.9.something.

I did have to reboot between adding it into here, and running it.

Code:

[root@kindle pillow]# head -n 5 debug_cmds.json
{
    ";coplate" : "/var/local/flash.sh",
    ";dm" : "/usr/bin/dm.sh",
    ";dmcc" : "/usr/bin/dmcc.sh",
    ";dh" : "/usr/bin/dh.sh",
[root@kindle pillow]# ls -alrt /var/local/flash.sh
-rwxrwxrwx    1 root     javauser        31 Aug 21 23:38 /var/local/flash.sh
[root@kindle pillow]# reboot

Broadcast message from root@kindle
        (/dev/pts/0) at 0:49 ...

The system is going down for reboot NOW!
[root@kindle pillow]#
<reboot and reconnected to usbnet telnet, the kindle usbnet seems to be running on the ssh port until I rebooted a few more time.>
Welcome to Kindle!

#################################################
#  N O T I C E  *  N O T I C E  *  N O T I C E  #
#################################################
Rootfs is mounted read-only. Invoke mntroot rw to
switch back to a writable rootfs.
#################################################
[root@kindle root]# tail -f /var/log/messages
170823:005221 cvm[4359]:        at sun.net.www.http.HttpClient.New(Unknown Source)
170823:005221 cvm[4359]:        at sun.net.www.http.HttpClient.New(Unknown Source)
170823:005221 cvm[4359]:        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
170823:005221 cvm[4359]:        at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
170823:005221 cvm[4359]:        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
170823:005221 cvm[4359]:        at com.amazon.kindle.restricted.content.instantsearch.f.smB(qge:653)
170823:005221 cvm[4359]:        at com.amazon.kindle.restricted.content.instantsearch.f.run(qge:1711)
170823:005221 cvm[4359]:        at java.lang.Thread.startup(Unknown Source)
170823:005221 cvm[4359]: I StoreSuggestionsProvider:Information::Waiting for new Instant Search Task
170823:005221 cvm[4359]: I InstantSearchProvider:Information::Waiting for new Instant Search Task
170823:005222 cvm[4359]: I HeapMonitor:HeapInfo:max=27262976,alloc=20410368,avail=7927896:
170823:005224 Xorg: I GestureEngine:perfScenario::Sending button 1 down 1503449544.306951
170823:005224 powerd[2280]: I lipc:evts:name=t1TimerReset, origin=com.lab126.powerd:Event sent
170823:005224 Xorg: I GestureEngine:perfScenario::Sending button 1 up 1503449544.540623
170823:005224 framework: perfScenario CVM posting KeyEvent[KeyPress] time=1503449544552
170823:005224 framework: perfScenario CVM posting KeyEvent[KeyRelease] time=1503449544553
170823:005224 cvm[4359]: I GoButtonTask:Information::Debug command entered
170823:005224 SCRIPTEXECUTOR[5883]: I script-Executor:main:Ready for execution:Command=/var/local/flash.sh
170823:005224 powerd[2280]: I def:battinfo:batt_type = PRIMARY, capav=94%, mAh=1371mAh, volt=4201mV, current=167mA, temp=78F, lmd=1408mAh, cycl=8:
170823:005224 powerd[2280]: I def:battinfo-misc:batt_type = PRIMARY caprep=94%, capmix=97%, mAhav=1371mAh, mAhmix=1378mAh:
170823:005229 cvm[4359]: W lipc:perf:prop=executeDebugCommand, source=com.lab126.system, ms=5027:lipc property access took too long
170823:005229 winmgr[3068]: I lua:window_manager::creating new trigger window=L:C_N:searchBar_ID:system_RC:true_KIWI:CVM, triggerType=0, flashFid=1, timeout=2000, afterDamageTimeout=0, flags=0
170823:005229 kb[3502]: I kb:close:data=com.amazon.kindle.inputMethod,log_candidate_selected=0:hide keyboard
170823:005229 kb[3502]: I kb:draw:id=0,language=en_US,languages=en_US,lang=1,diacritical=0:redraw keyboard

nasser · 08-23-2017, 10:01 AM

Coplate, Sorry!

Your search bar command did run! But I failed to see the small "0" it had printed in the top left corner.

I checked the /var/log/messages:

For your command, I got the identical log like yours:

Code:

170823:191337 cvm[4740]: I GoButtonTask:Information::Debug command entered
170823:191337 SCRIPTEXECUTOR[6137]: I script-Executor:main:Ready for execution:Command=/var/local/flash.sh
170823:191342 cvm[4740]: W lipc:perf:prop=executeDebugCommand, source=com.lab126.system, ms=5026:lipc property access took too long

I then tried my ";kt" command to launch kterm. And here's the log I got:

Code:

170823:191637 cvm[4740]: I GoButtonTask:Information::Debug command entered
170823:191637 SCRIPTEXECUTOR[6524]: I script-Executor:main:Ready for execution:Command=/mnt/us/extensions/kterm/bin/kterm.sh
170823:191637 cvm[4740]: E def:jlipc:source=com.lab126.system,name=executeDebugCommand,value=;kt,errcode=2:LipcJNI cannot set string property
170823:191637 cvm[4740]: E GoButtonTask:Error::Cannot perform lipc set prop
170823:191637 cvm[4740]: com.amazon.kindle.util.lipc.LipcException: Cannot Set Property  ErrCode=2
170823:191637 cvm[4740]: 	at com.lab126.linux.arm.LipcImpl.setProperty0(Native Method)
170823:191637 cvm[4740]: 	at com.lab126.linux.arm.LipcImpl.setProperty(crb:1233)
170823:191637 cvm[4740]: 	at com.amazon.kindle.util.lipc.impl.LipcTargetImpl.setProperty(uzb:1088)
170823:191637 cvm[4740]: 	at com.amazon.kindle.restricted.device.chrome.c.M.yK(lvd:488)
170823:191637 cvm[4740]: 	at com.amazon.kindle.restricted.device.chrome.k.run(poe:254)
170823:191637 cvm[4740]: 	at java.lang.Thread.run(Unknown Source)
170823:191637 cvm[4740]: 	at java.lang.Thread.startup(Unknown Source)

It says something about, error code 2, cannot set string property and cannot perform lipc set prop...
Request our experts' help to understand these error messages!

coplate · 08-23-2017, 11:45 AM

Quote:

Originally Posted by nasser

Coplate, Sorry!

Your search bar command did run! But I failed to see the small "0" it had printed in the top left corner.

I checked the /var/log/messages:

For your command, I got the identical log like yours:

Code:

170823:191337 cvm[4740]: I GoButtonTask:Information::Debug command entered
170823:191337 SCRIPTEXECUTOR[6137]: I script-Executor:main:Ready for execution:Command=/var/local/flash.sh
170823:191342 cvm[4740]: W lipc:perf:prop=executeDebugCommand, source=com.lab126.system, ms=5026:lipc property access took too long

I then tried my ";kt" command to launch kterm. And here's the log I got:

Code:

170823:191637 cvm[4740]: I GoButtonTask:Information::Debug command entered
170823:191637 SCRIPTEXECUTOR[6524]: I script-Executor:main:Ready for execution:Command=/mnt/us/extensions/kterm/bin/kterm.sh
170823:191637 cvm[4740]: E def:jlipc:source=com.lab126.system,name=executeDebugCommand,value=;kt,errcode=2:LipcJNI cannot set string property
170823:191637 cvm[4740]: E GoButtonTask:Error::Cannot perform lipc set prop
170823:191637 cvm[4740]: com.amazon.kindle.util.lipc.LipcException: Cannot Set Property  ErrCode=2
170823:191637 cvm[4740]: 	at com.lab126.linux.arm.LipcImpl.setProperty0(Native Method)
170823:191637 cvm[4740]: 	at com.lab126.linux.arm.LipcImpl.setProperty(crb:1233)
170823:191637 cvm[4740]: 	at com.amazon.kindle.util.lipc.impl.LipcTargetImpl.setProperty(uzb:1088)
170823:191637 cvm[4740]: 	at com.amazon.kindle.restricted.device.chrome.c.M.yK(lvd:488)
170823:191637 cvm[4740]: 	at com.amazon.kindle.restricted.device.chrome.k.run(poe:254)
170823:191637 cvm[4740]: 	at java.lang.Thread.run(Unknown Source)
170823:191637 cvm[4740]: 	at java.lang.Thread.startup(Unknown Source)

It says something about, error code 2, cannot set string property and cannot perform lipc set prop...
Request our experts' help to understand these error messages!

Quote:

170823:191637 cvm[4740]: E def:jlipc:source=com.lab126.system,name=executeDeb ugCommand,value=;kt,errcode=2:LipcJNI cannot set string property

You can run the debug commands from the command line, like this: I cannot remember the exact spelling

Code:

lipc-set-string com.lab126.system executeDebugCommand ";kt"

If you if you do that, you will see that same error message from above.

I've only seen this before when trying to run a debug command that had special characters in it, like '%, |, &' and so on trying to inject commands.

You've probably just run into some other protection, maybe 'kt' is reserved, or you cannot use /mnt/us in the command?

Try putting that script into '/var/local' first, or put flash.sh into /mnt/us and see which one fails.

nasser · 08-23-2017, 01:23 PM

Thanks, coplate!
Already tried changing ";kt" to ";kterm" with the same result.
Will try moving the script into /var/local or similar, as you suggested.

All this works OK in the PW1! I checked the log - it only shows touch events when the shortcut commands are run.

nasser · 08-26-2017, 01:14 AM

I've tried the following, all with no result. Just keep getting the same error message in the logs (cannot set string property..):

Copy kterm.sh to /var/local
Replace contents of coplate's "flash.sh" with /mnt/us/extensions/kterm/bin/kterm.sh"
Add "/mnt/us/extensions/kterm/bin/kterm.sh" to coplate's "flash.sh"

I can try some more permutations, but doesn't look promising...

coplate · 08-26-2017, 01:36 AM

#2 you said that mine worked, replacing the contenets of it shoudl still work.

What is the contents of your script that you put into it, still using ';coplate'?

nasser · 08-26-2017, 06:57 AM

Contents of "kterm.sh" is:

Code:

/mnt/us/extensions/kterm/bin/kterm

If I add this line to your "flash.sh", in /var/local, It produces that "0" in the top left corner, and then indicates the errors in the log file.

If I replace the contents of "flash.sh", it only shows the errors in the log.

knc1 · 08-26-2017, 07:53 AM

Quote:

Originally Posted by nasser

I've tried the following, all with no result. Just keep getting the same error message in the logs (cannot set string property..):

Copy kterm.sh to /var/local
Replace contents of coplate's "flash.sh" with /mnt/us/extensions/kterm/bin/kterm.sh"
Add "/mnt/us/extensions/kterm/bin/kterm.sh" to coplate's "flash.sh"

I can try some more permutations, but doesn't look promising...

When run from KUAL, (2) will have a current working directory of /mnt/us/extensions/kterm. When run from a search bar command, it will not (unless your script sets the pwd to match).
Check your scripting to see if there is anything dependent on the setting of the current working directory (pwd).

nasser · 08-26-2017, 02:22 PM

I changed coplate's script /var/local/flash.sh to:

Code:

#!/bin/sh
sleep 5
eips 0 0 -f
cd /mnt/us/extensions/kterm/bin/
./kterm

Rebooted and entered ";coplate" into the search bar.
It printed a "0" in the top left corner. But kterm didn't run.

Output from /var/log/messages:

Code:

170826:233633 cvm[4579]: I GoButtonTask:Information::Debug command entered
170826:233639 cvm[4579]: W lipc:perf:prop=executeDebugCommand, source=com.lab126.system, ms=5103:lipc property access took too long
170826:233639 cvm[4579]: E def:jlipc:source=com.lab126.system,name=executeDebugCommand,value=;coplate,errcode=2:LipcJNI cannot set string property
170826:233639 cvm[4579]: E GoButtonTask:Error::Cannot perform lipc set prop
170826:233639 cvm[4579]: com.amazon.kindle.util.lipc.LipcException: Cannot Set Property  ErrCode=2
170826:233639 cvm[4579]: 	at com.lab126.linux.arm.LipcImpl.setProperty0(Native Method)
170826:233639 cvm[4579]: 	at com.lab126.linux.arm.LipcImpl.setProperty(crb:1233)
170826:233639 cvm[4579]: 	at com.amazon.kindle.util.lipc.impl.LipcTargetImpl.setProperty(uzb:1088)
170826:233639 cvm[4579]: 	at com.amazon.kindle.restricted.device.chrome.c.M.yK(lvd:488)
170826:233639 cvm[4579]: 	at com.amazon.kindle.restricted.device.chrome.k.run(poe:254)
170826:233639 cvm[4579]: 	at java.lang.Thread.run(Unknown Source)
170826:233639 cvm[4579]: 	at java.lang.Thread.startup(Unknown Source)

encol · 08-26-2017, 03:00 PM

Try to add a & after kterm

nasser · 08-26-2017, 08:18 PM

Quote:

Originally Posted by encol

Try to add a & after kterm

Tried that. No change.

coplate · 08-26-2017, 08:59 PM

definitely take the sleep 5 out of there as well, that was just so I can tell the difference between it closing and it running.

Are you logged into the kindle, it might be runnig in the background. But I think the duug command handler may kill things after a minute, so may have to have like a daemon launcher.

Take the sleep command out.

Can you run that, and give the output of 'ps -ef' ?

Can you link me the kterm install stuff and I cna try some things.

coplate · 08-27-2017, 01:05 AM

Ok, so it you want to run these from the command line, this is the syntax:

Code:

lipc-set-prop com.lab126.system executeDebugCommand ';kt'

I just ran it with the same flash.sh you posted, and got the same-ish error

Code:

From messages file:

170826:214338 lipc-set-prop[5961]: E def:fail:source=com.lab126.system, prop=executeDebugCommand:Failed to set property

From command line:
com.lab126.system failed to set value for property executeDebugCommand (0x2 lipcErrInternal)

I noticed you were calling kterm directly, instead of calling kterm.sh, so I tried that, but got the same problem.

I went into kterm.sh and removed the actual call to kterm, and that worked.

I have found that the call to actual kterm exits in failure code 1. and that the debug handler propagates that error.

If you put an echo statement after the call to kterm, then the debug handler will not thrown an error.

I have got the erro message that is actualliy killing kterm.
this flash.sh

Code:

#!/bin/bash
set +e


EXTENSION=/mnt/us/extensions/kterm
DPI=`cat /var/log/Xorg.0.log | grep DPI | sed -n 's/.*(\([0-9]\+\), [0-9]\+).*/\1/p'`
#use different layouts for high resolution devices
if [ ${DPI} -gt 290 ]; then
  PARAM="-l ${EXTENSION}/layouts/keyboard-300dpi.xml"
elif [ ${DPI} -gt 200 ]; then
  PARAM="-l ${EXTENSION}/layouts/keyboard-200dpi.xml"
fi

echo 111111111111111111111111111111111 > /dev/kmsg
${EXTENSION}/bin/kterm -d ${PARAM} "$@" /dev/kmsg 2> /dev/kmsg
echo kterm exited with status code $? > /dev/kmsg 2> /dev/kmsg
echo 2222222222222222222222222222222 > /dev/kmsg

Gives this response

Code:

170826:220909 SCRIPTEXECUTOR[7972]: I script-Executor:main:Ready for execution:Command=/var/local/flash.sh
170826:220909 [ 2016.031417] 111111111111111111111111111111111
170826:220909 [ 2016.072584]
170826:220909 [ 2016.072590] (kterm:7979): Gtk-WARNING **: cannot open display:
170826:220909 [ 2016.075732] kterm exited with status code 1
170826:220909 [ 2016.075995] 2222222222222222222222222222222

I'm not sure why it cannot find the display, when it does work on command line. I have tried copying my ssh env variables over to the script, but no luck. I am never comfortable EXPORTing the envirionmtne variables in a case like this, so you have to put it on the front of the function call.

And here it is, this script works for flash.sh. You can call this /var/local/kterm_launch.sh or whatever you like, no need to change the kterm.sh in the externsions directory.:

Code:

#!/bin/bash

eips 0 0 kterm
DISPLAY=':0.0' /mnt/us/extensions/kterm/bin/kterm.sh &

I banged that in place, and everything seems to be working just fine.

knc1 · 08-27-2017, 09:20 AM

The Amazon system includes a global LD_PRELOAD library that 'sanitizes' the environment to what they think is required.
You can find it using the LD_DEBUG environment variable settings on the kTerm execution command (just like you are setting DISPLAY).

Of course, that isn't triggered by command line commands, only by loading an executable.
We never have found a good reason to remove it, so we never have.

It is most likely one of the security features to prevent "environment variable attacks" - but you have to be jail broken before you can remove it from the system.

nasser · 08-28-2017, 01:37 PM

coplate,
Great job done in troubleshooting and fixing this behaviour!
Your fix: DISPLAY ":0.0" before the script works OK for me too. Thanks a lot for your time and effort!

One small point. In your earlier script, you had used the shebang "#!/bin/sh", which you have changed in your latest to "#!/bin/bash". When I set up my script with "#!/bin/sh", it didn't work. Worked only with "#!/bin/bash"!

Also, it works even if the "&" is removed from the end, but now the kindle search box remains visible inside the kterm window. Have to do a clear or turn the screensaver on and off!

So, one more thing which was working OK on the PW1 but not on PW3/KT3 is fixed. Will check and confirm on KT3 next.

08-26-2017, 01:14 AM	#35
nasser Evangelist Posts: 475 Karma: 445678 Join Date: Feb 2010 Device: Too many..	I've tried the following, all with no result. Just keep getting the same error message in the logs (cannot set string property..): Copy kterm.sh to /var/local *Replace* contents of coplate's "flash.sh" with /mnt/us/extensions/kterm/bin/kterm.sh" *Add* "/mnt/us/extensions/kterm/bin/kterm.sh" to coplate's "flash.sh" I can try some more permutations, but doesn't look promising...

08-26-2017, 06:57 AM	#37
nasser Evangelist Posts: 475 Karma: 445678 Join Date: Feb 2010 Device: Too many..	Contents of "kterm.sh" is: Code: /mnt/us/extensions/kterm/bin/kterm If I add this line to your "flash.sh", in /var/local, It produces that "0" in the top left corner, and then indicates the errors in the log file. If I replace the contents of "flash.sh", it only shows the errors in the log.

08-26-2017, 08:59 PM	#42
coplate Guru Posts: 645 Karma: 1888888 Join Date: Jun 2009 Device: prs-505, Kindle Keyboard 3g, PW3	definitely take the sleep 5 out of there as well, that was just so I can tell the difference between it closing and it running. Are you logged into the kindle, it might be runnig in the background. But I think the duug command handler may kill things after a minute, so may have to have like a daemon launcher. Take the sleep command out. Can you run that, and give the output of 'ps -ef' ? Can you link me the kterm install stuff and I cna try some things. Last edited by coplate; 08-26-2017 at 09:09 PM.

08-27-2017, 01:05 AM	#43
coplate Guru Posts: 645 Karma: 1888888 Join Date: Jun 2009 Device: prs-505, Kindle Keyboard 3g, PW3	Ok, so it you want to run these from the command line, this is the syntax: Code: lipc-set-prop com.lab126.system executeDebugCommand ';kt' I just ran it with the same flash.sh you posted, and got the same-ish error Code: From messages file: 170826:214338 lipc-set-prop[5961]: E def:fail:source=com.lab126.system, prop=executeDebugCommand:Failed to set property From command line: com.lab126.system failed to set value for property executeDebugCommand (0x2 lipcErrInternal) I noticed you were calling kterm directly, instead of calling kterm.sh, so I tried that, but got the same problem. I went into kterm.sh and removed the actual call to kterm, and that worked. I have found that the call to actual kterm exits in failure code 1. and that the debug handler propagates that error. If you put an echo statement after the call to kterm, then the debug handler will not thrown an error. I have got the erro message that is actualliy killing kterm. this flash.sh Code: #!/bin/bash set +e EXTENSION=/mnt/us/extensions/kterm DPI=`cat /var/log/Xorg.0.log \| grep DPI \| sed -n 's/.(\([0-9]\+\), [0-9]\+)./\1/p'` #use different layouts for high resolution devices if [ ${DPI} -gt 290 ]; then PARAM="-l ${EXTENSION}/layouts/keyboard-300dpi.xml" elif [ ${DPI} -gt 200 ]; then PARAM="-l ${EXTENSION}/layouts/keyboard-200dpi.xml" fi echo 111111111111111111111111111111111 > /dev/kmsg ${EXTENSION}/bin/kterm -d ${PARAM} "$@" /dev/kmsg 2> /dev/kmsg echo kterm exited with status code $? > /dev/kmsg 2> /dev/kmsg echo 2222222222222222222222222222222 > /dev/kmsg Gives this response Code: 170826:220909 SCRIPTEXECUTOR[7972]: I script-Executor:main:Ready for execution:Command=/var/local/flash.sh 170826:220909 [ 2016.031417] 111111111111111111111111111111111 170826:220909 [ 2016.072584] 170826:220909 [ 2016.072590] (kterm:7979): Gtk-WARNING *: cannot open display: 170826:220909 [ 2016.075732] kterm exited with status code 1 170826:220909 [ 2016.075995] 2222222222222222222222222222222 I'm not sure why it cannot find the display, when it does work on command line. I have tried copying my ssh env variables over to the script, but no luck. I am never comfortable EXPORTing the envirionmtne variables in a case like this, so you have to put it on the front of the function call. And here it is, this script works for flash.sh. You can call this /var/local/kterm_launch.sh or whatever you like, no need to change the kterm.sh in the externsions directory.: Code: #!/bin/bash eips 0 0 kterm DISPLAY=':0.0' /mnt/us/extensions/kterm/bin/kterm.sh & I banged that in place, and everything seems to be working just fine. Last edited by coplate; 08-27-2017 at 01:17 AM.*

08-27-2017, 09:20 AM	#44
knc1 Going Viral Posts: 17,212 Karma: 18210809 Join Date: Feb 2012 Location: Central Texas Device: No K1, PW2, KV, KOA	The Amazon system includes a global LD_PRELOAD library that 'sanitizes' the environment to what they think is required. You can find it using the LD_DEBUG environment variable settings on the kTerm execution command (just like you are setting DISPLAY). Of course, that isn't triggered by command line commands, only by loading an executable. We never have found a good reason to remove it, so we never have. It is most likely one of the security features to prevent "environment variable attacks" - but you have to be jail broken before you can remove it from the system. Last edited by knc1; 08-27-2017 at 09:27 AM.

08-23-2017, 01:23 PM	#34
nasser Evangelist Posts: 475 Karma: 445678 Join Date: Feb 2010 Device: Too many..	Thanks, coplate! Already tried changing ";kt" to ";kterm" with the same result. Will try moving the script into /var/local or similar, as you suggested. All this works OK in the PW1! I checked the log - it only shows touch events when the shortcut commands are run.

08-26-2017, 01:36 AM	#36
coplate Guru Posts: 645 Karma: 1888888 Join Date: Jun 2009 Device: prs-505, Kindle Keyboard 3g, PW3	#2 you said that mine worked, replacing the contenets of it shoudl still work. What is the contents of your script that you put into it, still using ';coplate'?

08-26-2017, 03:00 PM	#40
encol Evangelist Posts: 416 Karma: 765432 Join Date: Apr 2016 Location: Italy Device: Kindle PW3 5.8.5.0.1	Try to add a & after kterm

08-28-2017, 01:37 PM	#45
nasser Evangelist Posts: 475 Karma: 445678 Join Date: Feb 2010 Device: Too many..	coplate, Great job done in troubleshooting and fixing this behaviour! Your fix: DISPLAY ":0.0" before the script works OK for me too. Thanks a lot for your time and effort! One small point. In your earlier script, you had used the shebang "#!/bin/sh", which you have changed in your latest to "#!/bin/bash". When I set up my script with "#!/bin/sh", it didn't work. Worked only with "#!/bin/bash"! Also, it works even if the "&" is removed from the end, but now the kindle search box remains visible inside the kterm window. Have to do a clear or turn the screensaver on and off! So, one more thing which was working OK on the PW1 but not on PW3/KT3 is fixed. Will check and confirm on KT3 next. Last edited by nasser; 08-28-2017 at 01:44 PM. Reason: Added last line

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