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Application Server

2023-06-08T08:09:19Z

Docs:

Untuk menggunakan aplikasi berbasis application server, pengguna bisa melakukan hal berikut ini:

* Membuat application server melakukan listen ke localhost port antara 61000 dan 63000
* Membuat .htaccess untuk melakukan forward ke port tersebut.

Perintah .htaccess untuk keperluan tersebut adalah sebagai berikut:

<source lang="apache">
RewriteEngine On
RewriteRule "^/(.*)$" "http://127.0.0.1:61999/$1" [P]
</source>

Untuk menjalankan aplikasi setelah server di-reboot, kita bisa gunakan crontab dengan waktu @reboot:

<source lang="text">
@reboot ./start.sh
</source>

Sebaiknya informasikan ke tim kami apabila akan menggunakan application server agar tidak di-KILL secara otomatis oleh sistem. Selain itu seringkali diperlukan setting atau instalasi software yang perlu dilakukan oleh kami.

Beberapa contoh application server yang pernah diimplementasikan di server kami menggunakan bahasa pemrograman atau framework sebagai berikut: Perl Dancer, Python, NodeJS

[[Kategori:Web]]

Application Server

2023-06-08T08:05:18Z

Docs:

Application Server

2023-06-08T08:04:36Z

Docs:

2020-07-29T09:23:20Z

Docs:

Untuk melakukan instalasi perl Dancer, berikut adalah langkah-langkahnya:

===Install Perl minimal versi 5.24===

Silakan anda buka tiket untuk meminta staf kami menginstalkan paket rh-perl524 ke sistem.

===Mengaktifkan Perl Versi Baru===

Tambahkan baris berikut di `~/.bashrc_local`:

<source lang="bash">
source scl_source enable rh-perl524
export PATH="$PATH:~/perl5/bin"
export PERL5LIB=$HOME/perl5/lib/perl5
</source>

Aktifkan konfigurasi tersebut dengan `source ~/.bashrc`

===Instalasi Dancer===

Gunakan perintah berikut untuk menginstall Dancer:

<source lang="bash">
$ cpanm --force Dancer2 FCGI FCGI::ProcManager`
</source>

===Membuat Skeleton Aplikasi Dancer===

Gunakan perintah berikut untuk membuat skeleton aplikasi dancer:

<source lang="bash">
$ dancer2 -a MyApp && cd MyApp`
</source>

===Menjalankan Aplikasi Dancer===

Untuk menjalankan aplikasi Dancer tersebut, gunakan perintah:

<source lang="bash">
$ plackup s FCGI --listen $HOME/myapp.sock myapp.psgi
</source>

Anda juga perlu mengganti permission socket agar dapat diakses oleh webserver:

<source lang="bash">
$ chmod 777 $HOME/myapp.sock
</source>

===Aktifkan Extension sockets di PHP===

Masuk ke [[Control Panel]], lalu ke menu Language - PHP. Dan edit konfigurasi untuk versi PHP yang digunakan. Tambahkan baris berikut ke konfigurasi tersebut:

<source lang="ini">
extension=sockets.so
</source>

===Buat Client FastCGI===

Gunakan script ini untuk membuat client FastCGI:

<source lang="php">
<?php
/*
* Configure these by adding two define()s to spawn-fcgi.conf.php:
*
* SPAWN should be a command to spawn a fastcgi process on a socket
* SOCKET should point to the socket
*
* the example SPAWN is a web.py app (see demo.py)
*/

define("SOCKET", '/home/xxx/myapp.sock');
define("SPAWN", '-');

/*
* Spawn-FCGI.php: A script to translate PHP requests into FastCGI
* requests, thus allowing hosting of FastCGI apps (good) on any
* PHP-compatible web host (cheap, common).
*
* This is almost a direct port of Flup's FastCGI test harness,
* flup_fcgi_client.py (c) 2006 Allan Saddi <allan@saddi.com> +
* 2011 Vladimir Rusinov <vladimir@greenmice.info>
*
* Modified to take request data from the environment rather than
* from function parameters.
*
* PHP port + modifications (c) 2012 Shish <webmaster@shishnet.org>
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

/*
* FastCGI constants
*/
define('FCGI_LISTENSOCK_FILENO', 0);

define('FCGI_HEADER_LEN', 8);

define('FCGI_VERSION_1', 1);

define('FCGI_BEGIN_REQUEST', 1);
define('FCGI_ABORT_REQUEST', 2);
define('FCGI_END_REQUEST', 3);
define('FCGI_PARAMS', 4);
define('FCGI_STDIN', 5);
define('FCGI_STDOUT', 6);
define('FCGI_STDERR', 7);
define('FCGI_DATA', 8);
define('FCGI_GET_VALUES', 9);
define('FCGI_GET_VALUES_RESULT', 10);
define('FCGI_UNKNOWN_TYPE', 11);
define('FCGI_MAXTYPE', FCGI_UNKNOWN_TYPE);

define('FCGI_NULL_REQUEST_ID', 0);

define('FCGI_KEEP_CONN', 1);

define('FCGI_RESPONDER', 1);
define('FCGI_AUTHORIZER', 2);
define('FCGI_FILTER', 3);

define('FCGI_REQUEST_COMPLETE', 0);
define('FCGI_CANT_MPX_CONN', 1);
define('FCGI_OVERLOADED', 2);
define('FCGI_UNKNOWN_ROLE', 3);

define('FCGI_MAX_CONNS', 'FCGI_MAX_CONNS');
define('FCGI_MAX_REQS', 'FCGI_MAX_REQS');
define('FCGI_MPXS_CONNS', 'FCGI_MPXS_CONNS');

# SHIT: PHP needs different patterns for encode and decode
define('FCGI_Header', 'CCnnCx');
define('FCGI_Header2', 'Cversion/Ctype/nrequestId/ncontentLength/CpaddingLength/x');
define('FCGI_BeginRequestBody', 'nCx5');
define('FCGI_EndRequestBody', 'NCx3');
define('FCGI_UnknownTypeBody', 'Cx7');

# SHIT: PHP has no calcsize; so we calculate by hand and hardcode the result
define('FCGI_BeginRequestBody_LEN', 8); # calcsize(FCGI_BeginRequestBody));
define('FCGI_EndRequestBody_LEN', 8); # calcsize(FCGI_EndRequestBody));
define('FCGI_UnknownTypeBody_LEN', 8); # calcsize(FCGI_UnknownTypeBody));

/*
* Decodes a name/value pair.
*
* The number of bytes decoded as well as the name/value pair
* are returned.
*/
function decode_pair($s, $pos=0) {
$nameLength = ord($s[$pos]);
if($nameLength & 128) {
$nameLength = unpack('N', substr($s, $pos, 4));
$nameLength = $nameLength[0] & 0x7fffffff;
$pos += 4;
}
else {
$pos += 1;
}

$valueLength = ord($s[$pos]);
if($valueLength & 128) {
$valueLength = unpack('N', substr($s, $pos, 4));
$valueLength = $valueLength[0] & 0x7fffffff;
$pos += 4;
}
else {
$pos += 1;
}

$name = substr($s, $pos, $nameLength);
$pos += $nameLength;
$value = substr($s, $pos, $valueLength);
$pos += $valueLength;

return array($pos, array($name, $value));
}

/*
* Encodes a name/value pair.
*
* The encoded string is returned.
*/
function encode_pair($name, $value) {
$nameLength = strlen($name);
if($nameLength < 128) {
$s = chr($nameLength);
}
else {
$s = pack('N', $nameLength | 0x80000000);
}

$valueLength = strlen($value);
if($valueLength < 128) {
$s .= chr($valueLength);
}
else {
$s .= pack('N', $valueLength | 0x80000000);
}

return $s . $name . $value;
}

function spawn() {
#print "Spawning new FastCGI daemon\n";
$r = shell_exec(SPAWN);
}

/*
* A FastCGI Record.
*
* Used for encoding/decoding records.
*/
class Record {
function __construct($type=FCGI_UNKNOWN_TYPE, $requestId=FCGI_NULL_REQUEST_ID) {
$this->version = FCGI_VERSION_1;
$this->type = $type;
$this->requestId = $requestId;
$this->contentLength = 0;
$this->paddingLength = 0;
$this->contentData = '';
}

/*
* Attempts to receive length bytes from a socket, blocking if necessary.
* (Socket may be blocking or non-blocking.)
*/
function _recvall($sock, $length) {
$dataList = array();
$recvLen = 0;
while($length) {
$d = socket_recv($sock, $data, $length, null);
if($d === false) {
$r = array($sock);
$w = array();
$x = array();
socket_select($r, $w, $x, NULL);
continue;
}
if(!$data) {
break;
}
$dataList[] = $data;
$dataLen = strlen($data);
$recvLen += $dataLen;
$length -= $dataLen;
}
return array(implode('', $dataList), $recvLen);
}

/*
* Read and decode a Record from a socket.
*/
function read($sock) {
try {
$parts = $this->_recvall($sock, FCGI_HEADER_LEN);
$header = $parts[0];
$length = $parts[1];
}
catch(Exception $e) {
throw new EOFError();
}

if($length < FCGI_HEADER_LEN) {
throw new EOFError();
}

$parts = unpack(FCGI_Header2, $header);
$this->version = $parts['version'];
$this->type = $parts['type'];
$this->requestId = $parts['requestId'];
$this->contentLength = $parts['contentLength'];
$this->paddingLength = $parts['paddingLength'];

if($this->contentLength) {
try {
$parts = $this->_recvall($sock, $this->contentLength);
$this->contentData = $parts[0];
$length = $parts[1];
}
catch(Exception $e) {
throw new EOFError();
}

if($length < $this->contentLength) {
throw new EOFError();
}
}

if($this->paddingLength) {
try {
$this->_recvall($sock, $this->paddingLength);
}
catch(Exception $e) {
throw new EOFError();
}
}
}

/*
* Writes data to a socket and does not return until all the data is sent.
*/
function _sendall($sock, $data) {
$length = strlen($data);
while($length) {
$sent = socket_send($sock, $data, strlen($data), 0);
if($sent === FALSE) {
$errorcode = socket_last_error();
#if($errorcode == 107) { # ENOTCONN
# spawn();
# continue;
#}
#else if($e[0] == errno.EAGAIN) {
# #select.select([], [sock], [])
# continue;
#}
#else {
$errormsg = socket_strerror($errorcode);
die("Couldn't write to socket: [$errorcode] $errormsg");
#}
}
$data = substr($data, $sent);
$length -= $sent;
}
}

/*
* Encode and write a Record to a socket.
*/
function write($sock) {
$this->paddingLength = -$this->contentLength & 7;

$header = pack(FCGI_Header, $this->version, $this->type,
$this->requestId, $this->contentLength,
$this->paddingLength);
$this->_sendall($sock, $header);
if($this->contentLength) {
$this->_sendall($sock, $this->contentData);
}
if($this->paddingLength) {
$this->_sendall($sock, str_repeat("\x00", $this->paddingLength));
}
}
}

function _fcgiParams($sock, $requestId, $params) {
$rec = new Record(FCGI_PARAMS, $requestId);
$data = array();
foreach($params as $name => $value) {
$data[] = encode_pair($name, $value);
}
$data = implode('', $data);
$rec->contentData = $data;
$rec->contentLength = strlen($data);
$rec->write($sock);
}

function connect() {
$sock = socket_create(AF_UNIX, SOCK_STREAM, 0);

$connected = false;
$errors = 0;
while(!$connected && $errors < 5) {
$connected = @socket_connect($sock, SOCKET);
if($connected === FALSE) {
$errorcode = socket_last_error();
# no socket, or first connection refusal
if($errorcode == 2 || ($errorcode == 111 && $errors == 0)) {
spawn();
}
# ECONNREFUSED; we started a process but it isn't running yet
else if($errorcode == 111) {
sleep(1);
$errors++;
}
else {
$errormsg = socket_strerror($errorcode);
die("Couldn't write to socket: [$errorcode] $errormsg");
}
}
}
if(!$connected) {
die("FastCGI daemon didn't start accepting connections");
}

return $sock;
}

function pass_request() {
$sock = connect();

$env = array();
foreach($_SERVER as $k => $v) {
if(!is_array($v)) {
$env[$k] = $v;
}
}
$env['PATH_INFO'] = @$env['REQUEST_URI']; # for django

# Request IDs are supposed to be kept as small as possible
# while remaining unique :S
#$requestId = (int)(rand());
$requestId = 1;

# Begin the request
$rec = new Record(FCGI_BEGIN_REQUEST, $requestId);
$rec->contentData = pack(FCGI_BeginRequestBody, FCGI_RESPONDER, 0);
$rec->contentLength = FCGI_BeginRequestBody_LEN;
$rec->write($sock);

_fcgiParams($sock, $requestId, $env);
_fcgiParams($sock, $requestId, array());

# Transfer wsgi.input to FCGI_STDIN
$content_length = isset($env['CONTENT_LENGTH']) ? (int)$env['CONTENT_LENGTH'] : 0;
$s = '';
$fp = fopen("php://input", "r");
while($content_length > 0) {
$chunk_size = min($content_length, 4096);
$s = fread($fp, $chunk_size);
if(!$s) {
break;
}

$content_length -= strlen($s);
$rec = new Record(FCGI_STDIN, $requestId);
$rec->contentData = $s;
$rec->contentLength = strlen($s);
$rec->write($sock);
}
fclose($fp);

# Empty FCGI_DATA stream
$rec = new Record(FCGI_DATA, $requestId);
$rec->write($sock);

# Main loop. Process FCGI_STDOUT, FCGI_STDERR, FCGI_END_REQUEST
# records from the application.
$result = array();
$err = '';
while(True) {
$inrec = new Record();
$inrec->read($sock);
if($inrec->type == FCGI_STDOUT) {
if($inrec->contentData) {
$result[] = $inrec->contentData;
}
else {
# TODO: Should probably be pedantic and no longer
# accept FCGI_STDOUT records?"
}
}
else if($inrec->type == FCGI_STDERR) {
# Simply forward to wsgi.errors
$err .= $inrec->contentData;
#environ['wsgi.errors'].write(inrec.contentData)
}
else if($inrec->type == FCGI_END_REQUEST) {
# TODO: Process appStatus/protocolStatus fields?
break;
}
}

# Done with this transport socket, close it. (FCGI_KEEP_CONN was not
# set in the FCGI_BEGIN_REQUEST record we sent above. So the
# application is expected to do the same.)
socket_close($sock);

$result = implode('', $result);

# Parse response headers from FCGI_STDOUT
$status = '200 OK';
$headers = array();
$pos = 0;
while(True) {
$eolpos = strpos($result, "\n", $pos);
if($eolpos < 0) {
break;
}
$line = substr($result, $pos, $eolpos-$pos-1);
$pos = $eolpos + 1;

# strip in case of CR. NB: This will also strip other
# whitespace...
$line = trim($line);

# Empty line signifies end of headers
if(trim($line) == "") {
break;
}

# TODO: Better error handling
$parts = explode(":", $line, 2);
$header = $parts[0];
$value = $parts[1];
$header = strtolower(trim($header));
$value = trim($value);

if($header == 'status') {
# Special handling of Status header
$status = $value;
if(strpos($status, ' ') < 0) {
# Append a dummy reason phrase if one was not provided
$status .= ' FCGIApp';
}
header("HTTP/1.0 ".$status);
}
else {
$headers[] = array($header, $value);
}
}

$result = substr($result, $pos);

return array($headers, $result);
}

$req = pass_request();

foreach($req[0] as $header) {
header($header[0] .": ". $header[1], false);
}

print $req[1];
?>
</source>

Sumber: https://github.com/shish/spawn-fcgi.php/blob/master/spawn-fcgi.php

===Tambahkan .htaccess===

Agar script dapat diakses melalui root URL, silakan tambahkan .htaccess berikut Mini:

<source lang="apache">
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ spawn-fcgi.php [L]
</source>

[[Kategori:Setting_CMS]]

Perl Dancer

2020-07-29T09:22:48Z

Docs:

Untuk melakukan instalasi perl Dancer, berikut adalah langkah-langkahnya:

===Install Perl minimal versi 5.24===

Silakan anda buka tiket untuk meminta staf kami menginstalkan paket rh-perl524 ke sistem.

===Mengaktifkan Perl Versi Baru===

Tambahkan baris berikut di `~/.bashrc_local`:

<source lang="bash">
source scl_source enable rh-perl524
export PATH="$PATH:~/perl5/bin"
export PERL5LIB=$HOME/perl5/lib/perl5
</source>

Aktifkan konfigurasi tersebut dengan `source ~/.bashrc`

===Instalasi Dancer===

Gunakan perintah berikut untuk menginstall Dancer:

<source lang="bash">
$ cpanm --force Dancer2 FCGI FCGI::ProcManager`
</source>

===Membuat Skeleton Aplikasi Dancer===

Gunakan perintah berikut untuk membuat skeleton aplikasi dancer:

<source lang="bash">
$ dancer2 -a MyApp && cd MyApp`
</source>

===Menjalankan Aplikasi Dancer===

Untuk menjalankan aplikasi Dancer tersebut, gunakan perintah:

<source lang="bash">
$ plackup s FCGI --listen $HOME/myapp.sock myapp.psgi
</source>

Anda juga perlu mengganti permission socket agar dapat diakses oleh webserver:

<source lang="bash">
$ chmod 777 $HOME/myapp.sock
</source>

===Aktifkan Extension sockets di PHP===

Masuk ke [[Control Panel]], lalu ke menu Language - PHP. Dan edit konfigurasi untuk versi PHP yang digunakan. Tambahkan baris berikut ke konfigurasi tersebut:

<source lang="ini">
extension=sockets.so
</source>

===Buat Client FastCGI===

Gunakan script ini untuk membuat client FastCGI:

<source lang="php">
<?php
/*
* Configure these by adding two define()s to spawn-fcgi.conf.php:
*
* SPAWN should be a command to spawn a fastcgi process on a socket
* SOCKET should point to the socket
*
* the example SPAWN is a web.py app (see demo.py)
*/

define("SOCKET", '/home/xxx/myapp.sock');
define("SPAWN", '-');

/*
* Spawn-FCGI.php: A script to translate PHP requests into FastCGI
* requests, thus allowing hosting of FastCGI apps (good) on any
* PHP-compatible web host (cheap, common).
*
* This is almost a direct port of Flup's FastCGI test harness,
* flup_fcgi_client.py (c) 2006 Allan Saddi <allan@saddi.com> +
* 2011 Vladimir Rusinov <vladimir@greenmice.info>
*
* Modified to take request data from the environment rather than
* from function parameters.
*
* PHP port + modifications (c) 2012 Shish <webmaster@shishnet.org>
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

/*
* FastCGI constants
*/
define('FCGI_LISTENSOCK_FILENO', 0);

define('FCGI_HEADER_LEN', 8);

define('FCGI_VERSION_1', 1);

define('FCGI_BEGIN_REQUEST', 1);
define('FCGI_ABORT_REQUEST', 2);
define('FCGI_END_REQUEST', 3);
define('FCGI_PARAMS', 4);
define('FCGI_STDIN', 5);
define('FCGI_STDOUT', 6);
define('FCGI_STDERR', 7);
define('FCGI_DATA', 8);
define('FCGI_GET_VALUES', 9);
define('FCGI_GET_VALUES_RESULT', 10);
define('FCGI_UNKNOWN_TYPE', 11);
define('FCGI_MAXTYPE', FCGI_UNKNOWN_TYPE);

define('FCGI_NULL_REQUEST_ID', 0);

define('FCGI_KEEP_CONN', 1);

define('FCGI_RESPONDER', 1);
define('FCGI_AUTHORIZER', 2);
define('FCGI_FILTER', 3);

define('FCGI_REQUEST_COMPLETE', 0);
define('FCGI_CANT_MPX_CONN', 1);
define('FCGI_OVERLOADED', 2);
define('FCGI_UNKNOWN_ROLE', 3);

define('FCGI_MAX_CONNS', 'FCGI_MAX_CONNS');
define('FCGI_MAX_REQS', 'FCGI_MAX_REQS');
define('FCGI_MPXS_CONNS', 'FCGI_MPXS_CONNS');

# SHIT: PHP needs different patterns for encode and decode
define('FCGI_Header', 'CCnnCx');
define('FCGI_Header2', 'Cversion/Ctype/nrequestId/ncontentLength/CpaddingLength/x');
define('FCGI_BeginRequestBody', 'nCx5');
define('FCGI_EndRequestBody', 'NCx3');
define('FCGI_UnknownTypeBody', 'Cx7');

# SHIT: PHP has no calcsize; so we calculate by hand and hardcode the result
define('FCGI_BeginRequestBody_LEN', 8); # calcsize(FCGI_BeginRequestBody));
define('FCGI_EndRequestBody_LEN', 8); # calcsize(FCGI_EndRequestBody));
define('FCGI_UnknownTypeBody_LEN', 8); # calcsize(FCGI_UnknownTypeBody));

/*
* Decodes a name/value pair.
*
* The number of bytes decoded as well as the name/value pair
* are returned.
*/
function decode_pair($s, $pos=0) {
$nameLength = ord($s[$pos]);
if($nameLength & 128) {
$nameLength = unpack('N', substr($s, $pos, 4));
$nameLength = $nameLength[0] & 0x7fffffff;
$pos += 4;
}
else {
$pos += 1;
}

$valueLength = ord($s[$pos]);
if($valueLength & 128) {
$valueLength = unpack('N', substr($s, $pos, 4));
$valueLength = $valueLength[0] & 0x7fffffff;
$pos += 4;
}
else {
$pos += 1;
}

$name = substr($s, $pos, $nameLength);
$pos += $nameLength;
$value = substr($s, $pos, $valueLength);
$pos += $valueLength;

return array($pos, array($name, $value));
}

/*
* Encodes a name/value pair.
*
* The encoded string is returned.
*/
function encode_pair($name, $value) {
$nameLength = strlen($name);
if($nameLength < 128) {
$s = chr($nameLength);
}
else {
$s = pack('N', $nameLength | 0x80000000);
}

$valueLength = strlen($value);
if($valueLength < 128) {
$s .= chr($valueLength);
}
else {
$s .= pack('N', $valueLength | 0x80000000);
}

return $s . $name . $value;
}

function spawn() {
#print "Spawning new FastCGI daemon\n";
$r = shell_exec(SPAWN);
}

/*
* A FastCGI Record.
*
* Used for encoding/decoding records.
*/
class Record {
function __construct($type=FCGI_UNKNOWN_TYPE, $requestId=FCGI_NULL_REQUEST_ID) {
$this->version = FCGI_VERSION_1;
$this->type = $type;
$this->requestId = $requestId;
$this->contentLength = 0;
$this->paddingLength = 0;
$this->contentData = '';
}

/*
* Attempts to receive length bytes from a socket, blocking if necessary.
* (Socket may be blocking or non-blocking.)
*/
function _recvall($sock, $length) {
$dataList = array();
$recvLen = 0;
while($length) {
$d = socket_recv($sock, $data, $length, null);
if($d === false) {
$r = array($sock);
$w = array();
$x = array();
socket_select($r, $w, $x, NULL);
continue;
}
if(!$data) {
break;
}
$dataList[] = $data;
$dataLen = strlen($data);
$recvLen += $dataLen;
$length -= $dataLen;
}
return array(implode('', $dataList), $recvLen);
}

/*
* Read and decode a Record from a socket.
*/
function read($sock) {
try {
$parts = $this->_recvall($sock, FCGI_HEADER_LEN);
$header = $parts[0];
$length = $parts[1];
}
catch(Exception $e) {
throw new EOFError();
}

if($length < FCGI_HEADER_LEN) {
throw new EOFError();
}

$parts = unpack(FCGI_Header2, $header);
$this->version = $parts['version'];
$this->type = $parts['type'];
$this->requestId = $parts['requestId'];
$this->contentLength = $parts['contentLength'];
$this->paddingLength = $parts['paddingLength'];

if($this->contentLength) {
try {
$parts = $this->_recvall($sock, $this->contentLength);
$this->contentData = $parts[0];
$length = $parts[1];
}
catch(Exception $e) {
throw new EOFError();
}

if($length < $this->contentLength) {
throw new EOFError();
}
}

if($this->paddingLength) {
try {
$this->_recvall($sock, $this->paddingLength);
}
catch(Exception $e) {
throw new EOFError();
}
}
}

/*
* Writes data to a socket and does not return until all the data is sent.
*/
function _sendall($sock, $data) {
$length = strlen($data);
while($length) {
$sent = socket_send($sock, $data, strlen($data), 0);
if($sent === FALSE) {
$errorcode = socket_last_error();
#if($errorcode == 107) { # ENOTCONN
# spawn();
# continue;
#}
#else if($e[0] == errno.EAGAIN) {
# #select.select([], [sock], [])
# continue;
#}
#else {
$errormsg = socket_strerror($errorcode);
die("Couldn't write to socket: [$errorcode] $errormsg");
#}
}
$data = substr($data, $sent);
$length -= $sent;
}
}

/*
* Encode and write a Record to a socket.
*/
function write($sock) {
$this->paddingLength = -$this->contentLength & 7;

$header = pack(FCGI_Header, $this->version, $this->type,
$this->requestId, $this->contentLength,
$this->paddingLength);
$this->_sendall($sock, $header);
if($this->contentLength) {
$this->_sendall($sock, $this->contentData);
}
if($this->paddingLength) {
$this->_sendall($sock, str_repeat("\x00", $this->paddingLength));
}
}
}

function _fcgiParams($sock, $requestId, $params) {
$rec = new Record(FCGI_PARAMS, $requestId);
$data = array();
foreach($params as $name => $value) {
$data[] = encode_pair($name, $value);
}
$data = implode('', $data);
$rec->contentData = $data;
$rec->contentLength = strlen($data);
$rec->write($sock);
}

function connect() {
$sock = socket_create(AF_UNIX, SOCK_STREAM, 0);

$connected = false;
$errors = 0;
while(!$connected && $errors < 5) {
$connected = @socket_connect($sock, SOCKET);
if($connected === FALSE) {
$errorcode = socket_last_error();
# no socket, or first connection refusal
if($errorcode == 2 || ($errorcode == 111 && $errors == 0)) {
spawn();
}
# ECONNREFUSED; we started a process but it isn't running yet
else if($errorcode == 111) {
sleep(1);
$errors++;
}
else {
$errormsg = socket_strerror($errorcode);
die("Couldn't write to socket: [$errorcode] $errormsg");
}
}
}
if(!$connected) {
die("FastCGI daemon didn't start accepting connections");
}

return $sock;
}

function pass_request() {
$sock = connect();

$env = array();
foreach($_SERVER as $k => $v) {
if(!is_array($v)) {
$env[$k] = $v;
}
}
$env['PATH_INFO'] = @$env['REQUEST_URI']; # for django

# Request IDs are supposed to be kept as small as possible
# while remaining unique :S
#$requestId = (int)(rand());
$requestId = 1;

# Begin the request
$rec = new Record(FCGI_BEGIN_REQUEST, $requestId);
$rec->contentData = pack(FCGI_BeginRequestBody, FCGI_RESPONDER, 0);
$rec->contentLength = FCGI_BeginRequestBody_LEN;
$rec->write($sock);

_fcgiParams($sock, $requestId, $env);
_fcgiParams($sock, $requestId, array());

# Transfer wsgi.input to FCGI_STDIN
$content_length = isset($env['CONTENT_LENGTH']) ? (int)$env['CONTENT_LENGTH'] : 0;
$s = '';
$fp = fopen("php://input", "r");
while($content_length > 0) {
$chunk_size = min($content_length, 4096);
$s = fread($fp, $chunk_size);
if(!$s) {
break;
}

$content_length -= strlen($s);
$rec = new Record(FCGI_STDIN, $requestId);
$rec->contentData = $s;
$rec->contentLength = strlen($s);
$rec->write($sock);
}
fclose($fp);

# Empty FCGI_DATA stream
$rec = new Record(FCGI_DATA, $requestId);
$rec->write($sock);

# Main loop. Process FCGI_STDOUT, FCGI_STDERR, FCGI_END_REQUEST
# records from the application.
$result = array();
$err = '';
while(True) {
$inrec = new Record();
$inrec->read($sock);
if($inrec->type == FCGI_STDOUT) {
if($inrec->contentData) {
$result[] = $inrec->contentData;
}
else {
# TODO: Should probably be pedantic and no longer
# accept FCGI_STDOUT records?"
}
}
else if($inrec->type == FCGI_STDERR) {
# Simply forward to wsgi.errors
$err .= $inrec->contentData;
#environ['wsgi.errors'].write(inrec.contentData)
}
else if($inrec->type == FCGI_END_REQUEST) {
# TODO: Process appStatus/protocolStatus fields?
break;
}
}

# Done with this transport socket, close it. (FCGI_KEEP_CONN was not
# set in the FCGI_BEGIN_REQUEST record we sent above. So the
# application is expected to do the same.)
socket_close($sock);

$result = implode('', $result);

# Parse response headers from FCGI_STDOUT
$status = '200 OK';
$headers = array();
$pos = 0;
while(True) {
$eolpos = strpos($result, "\n", $pos);
if($eolpos < 0) {
break;
}
$line = substr($result, $pos, $eolpos-$pos-1);
$pos = $eolpos + 1;

# strip in case of CR. NB: This will also strip other
# whitespace...
$line = trim($line);

# Empty line signifies end of headers
if(trim($line) == "") {
break;
}

# TODO: Better error handling
$parts = explode(":", $line, 2);
$header = $parts[0];
$value = $parts[1];
$header = strtolower(trim($header));
$value = trim($value);

if($header == 'status') {
# Special handling of Status header
$status = $value;
if(strpos($status, ' ') < 0) {
# Append a dummy reason phrase if one was not provided
$status .= ' FCGIApp';
}
header("HTTP/1.0 ".$status);
}
else {
$headers[] = array($header, $value);
}
}

$result = substr($result, $pos);

return array($headers, $result);
}

$req = pass_request();

foreach($req[0] as $header) {
header($header[0] .": ". $header[1], false);
}

print $req[1];
?>
</source>

Sumber: https://github.com/shish/spawn-fcgi.php/blob/master/spawn-fcgi.php

===Tambahkan .htaccess===

Agar script dapat diakses melalui root URL, silakan tambahkan .htaccess berikut Mini:

<source lang="htaccess">
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ spawn-fcgi.php [L]
</source>

[[Kategori:Setting_CMS]]

Perl Dancer

2020-07-29T09:10:25Z

Docs: ←Membuat halaman berisi 'Untuk melakukan instalasi perl Dancer, berikut adalah langkah-langkahnya: ===Install Perl minimal versi 5.24=== Silakan anda buka tiket untuk meminta staf kami mengi...'

Django

2020-06-05T13:41:51Z

Docs:

Anda dapat menggunakan virtualenv untuk menginstall Django di akun hosting {{indoglobal}}.

==Persiapan==

Sebelum memulai, pastikan di server tempat akun anda diletakkan sudah terinstal versi Python yang diperlukan. Untuk mengetahui versi Python yang dibutuhkan Django, silakan baca [https://docs.djangoproject.com/en/1.8/faq/install/#what-python-version-can-i-use-with-django FAQ Django]. Jika di sistem belum terinstal versi Python yang dibutuhkan, silakan hubungi tim dukungan teknis kami untuk diinstalkan.

Tulisan ini mengasumsikan anda menggunakan Python 3.8

==Setup virtualenv==

Login ke akun anda melalui shell (SSH atau web based terminal kami), dan jalankan perintah berikut ini.

Untuk Python 3.8:

<source lang="bash">
mkdir .env
/opt/python-3.8/bin/python3.8 -m venv .env/python-3.8
</source>

Perintah tersebut akan membuat virtualenv di directory ~/.env/python-3.4. Sekarang anda memiliki instalasi Python 3.4 di directory tersebut.

(informasi usang) Untuk Python 3 versi lama:

<source lang="bash">
$ mkdir .env
$ cd .env
$ pyvenv-3.4 python-3.4
</source>

(informasi usang) Untuk Python 2:

<source lang="bash">
$ mkdir .env
$ cd .env
$ virtualenv python-3.4
</source>

Perintah tersebut akan membuat virtualenv di directory ~/.env/python-3.4. Sekarang anda memiliki instalasi Python 3.4 di directory tersebut.

==Aktifkan virtualenv Pada Sesi Login Anda==

Sekarang aktifkan virtualenv yang telah anda buat.

<source lang="bash">
source ~/.env/python-3.8/bin/activate
</source>

Setelah perintah tersebut dijalankan, maka sesi login anda saat itu akan menggunakan Python 3.4.

{{alert|content=Anda perlu menjalankan perintah ini setiap kali ingin menggunakan versi Python tersebut untuk mengelola instalasi Django melalui shell}}

==Instal Paket Yang Dibutuhkan==

<source lang="bash">
$ pip install flup6
$ pip install django
$ pip install django-fastcgi-server
</source>

{{alert|content=Untuk Python 2, paket yang dibutuhkan adalah 'flup', bukan 'flup6'.}}

==Memulai Proyek Django Baru==

<source lang="bash">
$ mkdir ~/projects
$ cd ~/projects
$ django-admin.py startproject myproject
$ cd ~/env/python-3.8/lib/python3.4/site-packages/
$ ln -s ~/projects/myproject/myproject
</source>

Perintah tersebut akan membuat proyek 'myproject' yang diletakkan di ~/projects/myproject.

==Pastikan Paket Terinstal Dengan Baik==

<source lang="bash">
$ python
Python 3.8.3 (default, Jun 5 2020, 13:18:07)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-23)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> import flup
>>> import myproject
</source>

Jika tidak ada error, maka paket seharusnya sudah terinstall dengan baik.

==Instal Front Controller==

Di directory web anda, buatlah file 'myproject.fcgi' dengan isi sebagai berikut:

<source lang="python">
#!/home/username/.env/python-3.8/bin/python

import sys, os

sys.path.insert(0, '/home/username/.env/python-3.8/lib/python3.8/site-packages')
os.chdir('/home/username/projects/myproject/myproject')
os.environ['DJANGO_SETTINGS_MODULE'] = 'myproject.settings'

from django_fastcgi.servers.fastcgi import runfastcgi
from django.core.servers.basehttp import get_internal_wsgi_application

wsgi_application = get_internal_wsgi_application()
runfastcgi(wsgi_application, method="threaded", daemonize="false", minspare=1, maxspare=1, maxchildren=1)
</source>

Ubah file tersebut menjadi executable dengan perintah <code>chmod +x myproject.fcgi</code>

Kemudian buatlah file .htaccess dengan isi sebagai berikut:

<source lang="apache">
AddHandler fcgid-script .fcgi
RewriteEngine On
Options +FollowSymLinks +ExecCGI
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ myproject.fcgi/$1 [QSA,L]
</source>

==Selesai!==

Pastikan Django telah terinstall dengan baik dengan menggunakan web browser.

Untuk mengelola instalasi Django menggunakan shell, jangan lupa untuk mengikuti langkah "Aktifkan virtualenv Pada Sesi Login Anda" di atas.

[[Kategori:Setting_CMS]]

Django

2020-06-05T13:40:17Z

Docs:

Anda dapat menggunakan virtualenv untuk menginstall Django di akun hosting {{indoglobal}}.

==Persiapan==

Sebelum memulai, pastikan di server tempat akun anda diletakkan sudah terinstal versi Python yang diperlukan. Untuk mengetahui versi Python yang dibutuhkan Django, silakan baca [https://docs.djangoproject.com/en/1.8/faq/install/#what-python-version-can-i-use-with-django FAQ Django]. Jika di sistem belum terinstal versi Python yang dibutuhkan, silakan hubungi tim dukungan teknis kami untuk diinstalkan.

Tulisan ini mengasumsikan anda menggunakan Python 3.8

==Setup virtualenv==

Login ke akun anda melalui shell (SSH atau web based terminal kami), dan jalankan perintah berikut ini.

Untuk Python 3.8:

<source lang="bash">
mkdir .env
/opt/python-3.8/bin/python3.8 -m venv .env/python-3.8
</source>

Perintah tersebut akan membuat virtualenv di directory ~/.env/python-3.4. Sekarang anda memiliki instalasi Python 3.4 di directory tersebut.

(informasi usang) Untuk Python 3 versi lama:

<source lang="bash">
$ mkdir .env
$ cd .env
$ pyvenv-3.4 python-3.4
</source>

(informasi usang) Untuk Python 2:

<source lang="bash">
$ mkdir .env
$ cd .env
$ virtualenv python-3.4
</source>

Perintah tersebut akan membuat virtualenv di directory ~/.env/python-3.4. Sekarang anda memiliki instalasi Python 3.4 di directory tersebut.

==Aktifkan virtualenv Pada Sesi Login Anda==

Sekarang aktifkan virtualenv yang telah anda buat.

<source lang="bash">
source ~/.env/python-3.8/bin/activate
</source>

Setelah perintah tersebut dijalankan, maka sesi login anda saat itu akan menggunakan Python 3.4.

{{alert|content=Anda perlu menjalankan perintah ini setiap kali ingin menggunakan versi Python tersebut untuk mengelola instalasi Django melalui shell}}

==Instal Paket Yang Dibutuhkan==

<source lang="bash">
$ pip install flup6
$ pip install django
$ pip install django-fastcgi-server
</source>

{{alert|content=Untuk Python 2, paket yang dibutuhkan adalah 'flup', bukan 'flup6'.}}

==Memulai Proyek Django Baru==

<source lang="bash">
$ mkdir ~/projects
$ cd ~/projects
$ django-admin.py startproject myproject
$ cd ~/env/python-3.8/lib/python3.4/site-packages/
$ ln -s ~/projects/myproject/myproject
</source>

Perintah tersebut akan membuat proyek 'myproject' yang diletakkan di ~/projects/myproject.

==Pastikan Paket Terinstal Dengan Baik==

<source lang="bash">
$ python
Python 3.8.3 (default, Jun 5 2020, 13:18:07)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-23)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> import flup
>>> import myproject
</source>

Jika tidak ada error, maka paket seharusnya sudah terinstall dengan baik.

==Instal Front Controller==

Di directory web anda, buatlah file 'myproject.fcgi' dengan isi sebagai berikut:

<source lang="python">
#!/home/u12120sdu/.env/python-3.8/bin/python

import sys, os

sys.path.insert(0, '/home/username/.env/python-3.8/lib/python3.8/site-packages')
os.chdir('/home/username/projects/myproject/myproject')
os.environ['DJANGO_SETTINGS_MODULE'] = 'myproject.settings'

from django_fastcgi.servers.fastcgi import runfastcgi
from django.core.servers.basehttp import get_internal_wsgi_application

wsgi_application = get_internal_wsgi_application()
runfastcgi(wsgi_application, method="threaded", daemonize="false", minspare=1, maxspare=1, maxchildren=1)
</source>

Ubah file tersebut menjadi executable dengan perintah <code>chmod +x myproject.fcgi</code>

Kemudian buatlah file .htaccess dengan isi sebagai berikut:

<source lang="apache">
AddHandler fcgid-script .fcgi
RewriteEngine On
Options +FollowSymLinks +ExecCGI
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ myproject.fcgi/$1 [QSA,L]
</source>

==Selesai!==

Pastikan Django telah terinstall dengan baik dengan menggunakan web browser.

Untuk mengelola instalasi Django menggunakan shell, jangan lupa untuk mengikuti langkah "Aktifkan virtualenv Pada Sesi Login Anda" di atas.

[[Kategori:Setting_CMS]]

Django

2020-06-05T13:20:45Z

2016-01-02T19:28:45Z

Docs:

2016-01-02T19:11:12Z

Docs:

Permission

2016-01-02T19:10:02Z

Docs: ←Membuat halaman berisi '==Model Security== Di sistem {{indoglobal}}, terdapat dua jenis model security yang dapat diubah melalui menu 'Web Security' di Control Panel: ====Split web user...'

==Model Security==

Di sistem {{indoglobal}}, terdapat dua jenis model security yang dapat diubah melalui menu 'Web Security' di [[Control Panel]]:

====Split web user (default)====

Dengan [[Split web user]], script web dijalankan dengan 'user www'. Ini mirip dengan user 'nobody', 'www' atau 'apache' jika menggunakan web server Linux biasa. Perbedaannya, setiap user di sistem {{indoglobal}} memiliki 'user www' masing-masing. Contoh: jika user anda adalah u777xxx, maka 'user www' anda adalah u777xxx_www.

Kelebihannya adalah lebih aman. Jika terjadi masalah security pada script yang digunakan, penyerang tidak memiliki permission untuk memodifikasi script. Konsekuensinya pengguna perlu mengubah permission file yang perlu ditulis oleh script web.

====Tanpa split web user====

Jika split web user dinonaktifkan, script web dijalankan sama dengan username pengguna. Contoh: Jika username anda u777xxx, maka script web juga dijalankan dengan username u777xxx. Ini adalah model security yang umum berlaku pada kebanyakan web hosting lain.

Kelebihannya, pengguna tidak perlu mengubah permission file yang perlu ditulis oleh script web. Kekurangannya, jika ada masalah security, penyerang memiliki akses untuk memodifikasi file milik user.

==Mengubah Permission File==

Untuk mengubah permission file, dapat dilakukan melalui:

* [[File Manager]] (melalui menu Set Permssions - Read Write)
* FTP/SFTP (dengan perintah chmod 777)
* Shell/SSH (dengan perintah chmod 777)
ntu
==chmod 777???==

Beberapa pihak keberatan dengan chmod 777. Untuk itu telah kami tulis penjelasan kami di dokumen [[chmod 777]].

==Melarang Eksekusi Script Yang Dimiliki 'www user'==

Untuk meningkatkan keamanan, pengguna juga bisa mengaktifkan opsi 'Prevent execution of scripts owned by web user'. Dengan opsi ini, script yang diupload oleh sesama script akan tidak dapat dieksekusi.

Jika ada celah keamanan di script anda, biasanya penyerang akan menggunakan celah tersebut untuk mengupload script lain. Dengan menyalakan opsi ini, script milik penyerang tersebut menjadi tidak dapat dijalankan.

Kelemahannya, ada beberapa CMS yang memiliki fungsi untuk mengupload software tambahan seperti plugin, theme, module, extension, dll. Terkadang ada software tambahan berupa script yang diakses dan dieksekusi langsung, dan tidak akan dapat dieksekusi jika opsi ini dinyalakan. Pada kebanyakan kasus, ini tidak menjadi masalah karena script biasanya di-include oleh script CMS, dan tidak dieksekusi langsung.

Beberapa CMS seperti Wordpress dan Joomla memiliki fungsi untuk mengupload software tambahan melalui FTP, sehingga masalah ini dapat dihindari sepenuhnya.

[[Kategori:Web]]
[[Kategori:Pengaturan & Upload]]

Internationalized Domain Name

2015-12-31T10:53:31Z

Docs:

==Dukungan IDN==

Sistem {{indoglobal}} mendukung Internationalized Domain Name (IDN), yaitu nama domain yang mengandung karakter non latin. Contoh:

* [http://أهلا.indoglobal.com أهلا.indoglobal.com]
* [http://你好.indoglobal.com 你好.indoglobal.com]

Untuk menggunakan IDN pada subdomain silakan langsung buat subdomain dengan menginputkan nama subdomain dengan karakter non latin. Pengguna tidak perlu melakukan konversi secara manual, sistem akan secara otomatis melakukan konversi secara otomatis jika diperlukan oleh sistem.

==Masalah URL IDN==

Terkadang web browser akan secara otomatis mengkonversi domain IDN dari format Unicode (karakter non latin dapat terlihat) menjadi format Punycode (hasil encoding yang diawal dengan karakter 'xn--'). Hal ini dilakukan oleh web browser untuk menghindari penyalahgunaan yang berhubungan dengan URL yang mirip.

Contohnya:

* أهلا.indoglobal.com diubah menjadi xn--igbi0gl.indoglobal.com
* 你好.indoglobal.com diubah menjadi xn--6qq79v.indoglobal.com

Hal ini dilakukan oleh web browser dan di luar kontrol {{indoglobal}}. Untuk lebih jelasnya silakan baca dokumentasi dari beberapa produsen web browser yang populer sebagai berikut:

* [https://en.wikipedia.org/wiki/IDN_homograph_attack IDN homograph attack]
* [https://www.chromium.org/developers/design-documents/idn-in-google-chrome IDN in Google Chrome]
* [https://msdn.microsoft.com/en-us/library/dd565654(v=vs.85).aspx#allowable IDN Support (Internet Explorer) - Windows Internet Explorer and Allowable IDN Address]

[[Kategori:Web]]
[[Kategori:Subdomain]]
[[Kategori:Pengaturan & Upload]]

Internationalized Domain Name

2015-12-31T10:41:32Z

Docs:

Sistem {{indoglobal}} mendukung Internationalized Domain Name (IDN), yaitu nama domain yang mengandung karakter non latin. Contoh:

* [http://أهلا.indoglobal.com أهلا.indoglobal.com]
* [http://你好.indoglobal.com 你好.indoglobal.com]

Untuk menggunakan IDN pada subdomain silakan langsung buat subdomain dengan menginputkan nama subdomain dengan karakter non latin. Pengguna tidak perlu melakukan konversi secara manual, sistem akan secara otomatis melakukan konversi secara otomatis jika diperlukan oleh sistem.

[[Kategori:Web]]
[[Kategori:Subdomain]]
[[Kategori:Pengaturan & Upload]]