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open-source
MetaGer
Commits
d10702d8
Commit
d10702d8
authored
8 years ago
by
Dominik Hebeler
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Delete Forwarder.php
parent
561afe8b
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!1365
Resolve "Filter Options for MetaGer"
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app/Models/Forwarder.php
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561afe8b
<?php
namespace
App\MetaGer
;
use
App\lib\Redis
;
class
Forwarder
{
public
static
function
getFreeServer
()
{
# Variablen Deklarationen:
$host
=
$_SERVER
[
"SERVER_NAME"
];
# Dieser Server ist der Host für den Redis-Server
$redis
;
# In diesem Objekt erhalten wir Zugriff auf die Redis-Datenbank (Redis)
$cfg
;
# In diesem Objekt erhalten wir Zugriff auf unsere Konfiguration (Config::Simple)
$servers
;
# Beinhaltet später eine Liste, aller verbundenen Server, an die wir die Anfrage schicken können
$server
;
$protocol
;
# Beinhaltet später den Server ( und sein Protokoll ), der die Suchanfrage tatsächlich beantworten soll
$result
;
# Load Config File;
$cfg
=
parse_ini_file
(
config_path
()
.
'/metager.ini'
,
TRUE
);
# Connect to our Redis Server
try
{
$redis
=
new
Redis
(
$host
,
$cfg
[
'redis'
][
'port'
]);
}
catch
(
\Exception
$e
){
$redis
=
new
Redis
(
$cfg
[
'redis'
][
'server'
],
$cfg
[
'redis'
][
'port'
]);
}
$response
=
$redis
->
cmd
(
'auth'
,
$cfg
[
'redis'
][
'password'
]
)
->
get
();
if
(
$response
!==
"OK"
){
die
(
"Couldn't authenticate to Redis Server"
);
}
# Fill $servers Array from Redis:
$serversArray
=
self
::
indexedToAssociative
(
$redis
->
cmd
(
'hgetall'
,
'servers'
)
->
get
());
foreach
(
$serversArray
as
$key
=>
$value
){
$data
=
explode
(
"
\t
"
,
$value
);
$age
=
time
()
-
$data
[
0
];
# Erste Stelle ist die Zeit in Sekunden, an der sich der Server das letzte Mal angemeldet hat.
if
(
$age
>
3
){
# Der Server hat sich seit 3 Sekunden nicht mehr gemeldet. Er kommt schon einmal nicht in Frage und wird aus der Datenbank geworfen:
$redis
->
cmd
(
"hdel"
,
"servers"
,
$key
)
->
set
();
}
elseif
()
}
return
time
();
# Select a matching Server:
}
/**
* Converts an indexed Array to an Associative one
* Every Element on an even index is the Ḱey to the Element on the next uneven index
*
* @param indexedArray $array
* @return associativeArray $result
*/
private
static
function
indexedToAssociative
(
$array
){
$result
=
array
();
for
(
$i
=
0
;
$i
<
sizeof
(
$array
);
$i
++
){
if
(
$i
%
2
===
0
){
$server
=
$array
[
$i
];
}
else
{
$result
[
$server
]
=
$array
[
$i
];
$server
=
""
;
}
}
return
$result
;
}
}
\ No newline at end of file
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