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Fixed offsets after changes in Growatt protocol #3

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Fixed offsets after changes in Growatt protocol #3

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4 changes: 2 additions & 2 deletions extractData.php
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Original file line number Diff line number Diff line change
Expand Up @@ -78,11 +78,11 @@ private function parseInputMessage($inputmsg)
$result = (object) [];
$length = 10;
$result->deviceId = $this->getValue($msg, $start, $length);
$start += $length;
$start += $length + 20;

$length = 10;
$result->inverterId = $this->getValue($msg, $start, $length);
$start += $length;
$start += $length + 20;

$length = 5;
$result->empty = $this->getValue($msg, $start, $length);
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12 changes: 6 additions & 6 deletions proxy.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@
my @allowed_ips = ($config->{Proxy_allowd_ips}->[0], $config->{Proxy_allowd_ips}->[1],$config->{Proxy_allowd_ips}->[2],$config->{Proxy_allowd_ips}->[3],$config->{Proxy_allowd_ips}->[4]);

my $debug = 1;
my $incomming_inverterID = 0;
my $incoming_inverterID = 0;
my $inverter1_ID = $config->{Inverter1_ID};
my $inverter2_ID = $config->{Inverter2_ID};
my $inverter3_ID = $config->{Inverter3_ID};
Expand Down Expand Up @@ -100,12 +100,12 @@ sub client_allowed {

sub save_to_file {
my $msg = shift;
print "incomming_inverterID:", $incomming_inverterID, "\n";
print "incoming_inverterID:", $incoming_inverterID, "\n";

my $filename = '';

use feature qw(switch);
given($incomming_inverterID){
given($incoming_inverterID){
when($inverter1_ID) { $filename = $inverter1_output_filename; }
when($inverter2_ID) { $filename = $inverter2_output_filename; }
when($inverter3_ID) { $filename = $inverter3_output_filename; }
Expand Down Expand Up @@ -139,8 +139,8 @@ sub decryptMsg {
my $pos = 0;

#for (my $i=0; $i <= length($msg); $i++)
#Only first 20 karakters, that enough for the inverterID
for (my $i=0; $i <= 20; $i++)
#Only first 40 characters, that's enough for the inverterID
for (my $i=0; $i < 40; $i++)
{
my $value = ord(substr($encryptionKey, $pos++, 1));
if ($pos +1 > length($encryptionKey))
Expand Down Expand Up @@ -184,7 +184,7 @@ sub decryptMsg {
#print(substr($buffer, 0, 25), "\n");
my $tempString = decryptMsg($buffer);
#print(substr($tempString, 0, 25), "\n");
$incomming_inverterID = substr($tempString, 10, 10); #10th karakter in string, en 10 karaketers lang
$incoming_inverterID = substr($tempString, 30, 10); #10th character in string, and 10 characters long
save_to_file($buffer);
}

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