plugin upload return code is not json

[rusefi]

trying to upload attached tunes, something does not go well, http content is not helpful and not JSon :(

IniFileModel: Field label=[] : key=[null]
IniFileModel: Field label=[] : key=[null]
IniFileModel: Dialog key=gppwm4: name=[General Purpose PWM 4]
response=HTTP/1.1 200 OK [Content-Type: text/html; charset=UTF-8, Transfer-Encoding: chunked, Connection: keep-alive, Keep-Alive: timeout=15, Date: Thu, 16 Jul 2020 00:56:54 GMT, Server: Apache, X-Powered-By: PHP/7.3.19] org.apache.http.conn.BasicManagedEntity@1b92091
code 200
responseString=<br />
<b>Notice</b>:  Undefined offset: 2 in <b>/homepages/5/d451478433/htdocs/online/ini.php</b> on line <b>53</b><br />
{"error":["This file already exists in our Database!\r\n"]}
isError true
first Error Unexpected character (<) at position 0.
UploadQueue Re-queueing com.rusefi.tune.xml.Msq@f2c29c
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<msq xmlns="http://www.msefi.com/:msq">
    <page/>
    <page number="0" size="20000">
        <constant name="tsCanId" units="">"0"</constant>
        <constant name="tuneCrcPcVariable" units=""></constant>
        <constant name="wueAfrTargetOffset" units=":1">
	 -1.5
	 -1.4000000000000001
	 -1.1
	 -0.9

[rusefi]

outbox.zip

[andreika-git]

<versionInfo firmwareInfo="rusEFI+2020" nPages="1" version="5.0"/>

Where is signature? The signature is required to upload the tune.

[rusefi]

My bad on signature, will fix.

@andreika-git do we want better error handling in php to produce a more readable error message? only if that's not too much trouble

[rusefillc]

@stefanst reports

I've just changed plugin to actually display the PHP notice let's see what would it be this time

[rusefillc]

let's please explicitly check this condition and return valid JSON error if no .ini file?

also I think I see the file in https://rusefi.com/online/ini/rusefi/2020/08/08/mre_f4/ what's going on here @andreika-git ?

[rusefillc]

@stefanst please attach tune to this ticket

[stefanst]

Offending tune attached
CurrentTune.zip

[andreika-git]

It's a funny bug we've inherited from the old msqur behavior for MS signatures: "//If there's a decimal, remove any trailing zeros."
Hopefully fixed.

rusefi/msqur@18c547f