Executando um script Python dentro do WordPress

Question

Executando um script Python dentro do WordPress

21

71134 2013-10-27

Eutenho umainstalação do WordPresspara umblogpessoale estougradualmenteportandotodos ospequenosbits da web queescrevi ao longo dos anosem páginasnoblog.

Uma dessaspáginas é http://www.projecttoomanycooks.co. uk/cgi-bin/memória/majoranálise.py Qual é um simples script Python que retorna uma lista depalavras - Eugostaria deincorporaresse comportamento dentro de umapágina do WordPress - alguémpoderiame apontarna direção certapara Amaneiramaisfácil de correr umponto de Python dentro do WordPress?

editar - seguindo a respostamaravilhosa abaixo,eutenhomuitomais ...masinfelizmente aindanãoestá lá ...

Eutenho Python queexecutano servidor ...

 projecttoomanycooks server [~/public_html/joereddington/wp-content/plugins]#./hello.py 
Hello World!

e énomesmo diretório que oplugin ativado ...

O código Python ... quetem o seguinte código ...

 #!/usr/bin/python
print("Hello World!")

ophp:

 <?php
/**
 * Plugin Name: Joe's python thing.
 * Plugin URI: http://URI_Of_Page_Describing_Plugin_and_Updates
 * Description: A brief description of the Plugin.
 * Version: The Plugin's Version Number, e.g.: 1.0
 * Author: Name Of The Plugin Author
 * Author URI: http://URI_Of_The_Plugin_Author
 * License: A "Slug" license name e.g. GPL2
 */
/*from http://wordpress.stackexchange.com/questions/120259/running-a-python-scri
pt-within-wordpress/120261?noredirect=1#120261  */
add_shortcode( 'python', 'embed_python' );

function embed_python( $attributes )
{
    $data = shortcode_atts(
        array(
            'file' => 'hello.py'
        ),
        $attributes
    );
    $handle = popen( __DIR__ . '/' . $data['file'], 'r');
    $read   = fread($handle, 2096);
    pclose($handle);

    return $read;
}

I have a WordPress install for a personal blog and I'm gradually porting all of the little web bits I have written over the years to pages on the blog.

One such page is http://www.projecttoomanycooks.co.uk/cgi-bin/memory/majorAnalysis.py which is a simple python script that returns a list of words - I'd like to embedd that behavior within a wordpress page - could someone point me in the right direction for the easyist way of running a spot of python within wordpress?

EDIT - following the wonderful answer below, I have got a lot futher... but unfortunately still not quite there...

I have python that executes on server...

projecttoomanycooks server [~/public_html/joereddington/wp-content/plugins]#./hello.py 
Hello World!

and it's in the same directory as the activated plugin...

The python code... which has the following code...

#!/usr/bin/python
print("Hello World!")

The php:

<?php
/**
 * Plugin Name: Joe's python thing.
 * Plugin URI: http://URI_Of_Page_Describing_Plugin_and_Updates
 * Description: A brief description of the Plugin.
 * Version: The Plugin's Version Number, e.g.: 1.0
 * Author: Name Of The Plugin Author
 * Author URI: http://URI_Of_The_Plugin_Author
 * License: A "Slug" license name e.g. GPL2
 */
/*from http://wordpress.stackexchange.com/questions/120259/running-a-python-scri
pt-within-wordpress/120261?noredirect=1#120261  */
add_shortcode( 'python', 'embed_python' );

function embed_python( $attributes )
{
    $data = shortcode_atts(
        array(
            'file' => 'hello.py'
        ),
        $attributes
    );
    $handle = popen( __DIR__ . '/' . $data['file'], 'r');
    $read   = fread($handle, 2096);
    pclose($handle);

    return $read;
}

fonte
Joe

- Se é um roteiromuito simples,acho queiria apenas reescrevê-lono PHP como umplugin/modelo do WordPress ;-) Masem alguns casos,aspessoas usamiframesparaincorporar aspáginasexternas.
  
  If it's a very simple script, I think I would just rewrite it in PHP as a WordPress plugin/template ;-) But in some cases people use iframes to embed external pages.
  - 1
  - 2013-10-27
  - birgire
- iframe diretamente?:]
  
  iframe it directly? :]
  - 0
  - 2013-10-27
  - Jesse
- Isso é apenas um acidente,ou é o seu código Python realmentemisturado com o PHP?
  
  Is this just an accident, or is your python code really mixed with PHP?
  - 0
  - 2013-11-05
  - fuxia
- Eu colei otraço doterminal,com os arquivos sendoexibidospelo comando 'mais' ... vai arrumar umpouco ...
  
  I pasted the terminal trace, with the files being displayed by the 'more' command... will tidy up a little...
  - 0
  - 2013-11-05
  - Joe

3 respostas

votos

- 4
- 2016-10-06
Eu segui o script deexemplo daprimeira resposta,masnãoestava recebendo saída ouerros.

Eumudeiesta linha:

$handle = popen( __DIR__ . '/' . $data['file'], 'r' );

Paraisso:

$handle = popen( __DIR__ . '/' . $data['file'] . ' 2>&1', 'r' );

e depois recebeu umamensagem "Permissãonegada".

no console,eu corri

chmod 777 hello.py

Atualizou apáginae tudofuncionouperfeitamente.

Estapode ser a questão que Joeestava vendo acima.Eunãotenho um representante suficienteparafazer um comentário,desculpe.Espero queisso ajude alguém.
I followed the example script from the first answer, but was getting no output or errors.

I changed this line:

$handle = popen( __DIR__ . '/' . $data['file'], 'r' );

to this:

$handle = popen( __DIR__ . '/' . $data['file'] . ' 2>&1', 'r' );

and then got a "permission denied" message.

On the console, I ran

chmod 777 hello.py

refreshed the page, and everything worked perfectly.

This may be the issue Joe was seeing above. I don't have enough rep to make a comment, sorry. Hope this helps someone.
- Nãofaça apermissão 777. Apenasfaçaissoexecutável.`chmod + xfilename.py` vaifazer
  
  Do not make the permission 777. Just make it executale. `chmod +x filename.py` will do
  - 0
  - 2019-06-25
  - Dheeraj M Pai

2

2014-05-19

Aquiestá umpequeno script que usa proc_open como observado acima,paraenviar uma variável detexto simplespara um script Python:

 add_shortcode( 'execute_python', 'execute_python_with_argv' );

function execute_python_with_argv( $attributes ){

$description = array (     
    0 => array("pipe", "r"),  // stdin
    1 => array("pipe", "w"),  // stdout
    2 => array("pipe", "w")   // stderr
);

$application_system = "python ";
$application_path .= plugin_dir_path( __FILE__ );
$application_name .= "hello.py";
$separator = " ";

$application = $application_system.$application_path.$application_name.$separator;

$argv1 = '"output to receive back from python script"';
$pipes = array();

$proc = proc_open ( $application.$argv1 , $description , $pipes );

//echo proc_get_status($proc)['pid'];

if (is_resource ( $proc ))
{
    echo "Stdout : " . stream_get_contents ( $pipes [1] ); //Reading stdout buffer
    fclose ( $pipes [1] ); //Closing stdout buffer
    fclose ( $pipes [2] ); //Closing stderr buffer

    $return_value = proc_close($proc);
    echo "<br/>command returned: $return_value<br/>";
}

$application_test = glitch_player_DIR.$application_name;

echo "<br/>Is ".$application_test." executable? ".is_executable($application_test)." ";
echo "readable? ".is_readable($application_test)." ";
echo "writable? ".is_writable($application_test)." ";

} //EOF main/shortcode function

Adicionado algunstestes como aparteinferiorpara ver se o arquivo Python é rwx. Eu acho que umamaneiramelhor deenviar o argv seria usando a FWRE,masnãoestavafuncionandoparamim seguindo estetutorial .

Aquiestá o script Python que usei. Como observadoem comentários acima,algo como #!/usr/bin/env pythonpode sernecessário,dependendo do servidor.

 #!/usr/bin/env python

from sys import argv

script, what_he_said = argv

print "This is what you submitted: %s \n \n Isn't that amazing, man? " % what_he_said

Here's a little script that uses proc_open as noted above, to sent one simple text variable to a python script:

add_shortcode( 'execute_python', 'execute_python_with_argv' );

function execute_python_with_argv( $attributes ){

$description = array (     
    0 => array("pipe", "r"),  // stdin
    1 => array("pipe", "w"),  // stdout
    2 => array("pipe", "w")   // stderr
);

$application_system = "python ";
$application_path .= plugin_dir_path( __FILE__ );
$application_name .= "hello.py";
$separator = " ";

$application = $application_system.$application_path.$application_name.$separator;

$argv1 = '"output to receive back from python script"';
$pipes = array();

$proc = proc_open ( $application.$argv1 , $description , $pipes );

//echo proc_get_status($proc)['pid'];

if (is_resource ( $proc ))
{
    echo "Stdout : " . stream_get_contents ( $pipes [1] ); //Reading stdout buffer
    fclose ( $pipes [1] ); //Closing stdout buffer
    fclose ( $pipes [2] ); //Closing stderr buffer

    $return_value = proc_close($proc);
    echo "<br/>command returned: $return_value<br/>";
}

$application_test = glitch_player_DIR.$application_name;

echo "<br/>Is ".$application_test." executable? ".is_executable($application_test)." ";
echo "readable? ".is_readable($application_test)." ";
echo "writable? ".is_writable($application_test)." ";

} //EOF main/shortcode function

Added a few tests as the bottom to see if the python file is rwx. I think a better way to send the argv would be using fwrite, but it wasn't working for me following this tutorial.

Here is the python script I used. As noted in comments above, something like #!/usr/bin/env python may be necessary, depending on server.

#!/usr/bin/env python

from sys import argv

script, what_he_said = argv

print "This is what you submitted: %s \n \n Isn't that amazing, man? " % what_he_said

fuxia · Accepted Answer · 2013-10-27

21

2013-10-27

vocêpode usar popen() para Leia ou writeem um script Python (issofunciona com qualquer outroidiomatambém). Se vocêprecisar deinteração (variáveis depassagem), proc_open() .

Umexemplo simplesparaimprimir olámundo! em umplugin do WordPress

Crie oplugin,registre um shortcode:

<?php # -*- coding: utf-8 -*-
/* Plugin Name: Python embedded */

add_shortcode( 'python', 'embed_python' );

function embed_python( $attributes )
{
    $data = shortcode_atts(
        [
            'file' => 'hello.py'
        ],
        $attributes
    );

    $handle = popen( __DIR__ . '/' . $data['file'], 'r' );
    $read = '';

    while ( ! feof( $handle ) )
    {
        $read .= fread( $handle, 2096 );
    }

    pclose( $handle );

    return $read;
}

Agora vocêpode usaresse shortcodenoeditor depostagem com [python] ou [python file="filename.py"].

Coloque os scripts Python que você deseja usarnomesmo diretório que o arquivoplugin. Vocêtambémpode colocá-losem um diretórioe ajustar o caminhonomanipulador de shortcode.

Agora crie um script depython complexo comoeste:

print("Hello World!")

e isso étudo. Use o shortcodee obtenhaesta saída:

.

You can use popen() to read or write to a Python script (this works with any other language too). If you need interaction (passing variables) use proc_open().

A simple example to print Hello World! in a WordPress plugin

Create the plugin, register a shortcode:

<?php # -*- coding: utf-8 -*-
/* Plugin Name: Python embedded */

add_shortcode( 'python', 'embed_python' );

function embed_python( $attributes )
{
    $data = shortcode_atts(
        [
            'file' => 'hello.py'
        ],
        $attributes
    );

    $handle = popen( __DIR__ . '/' . $data['file'], 'r' );
    $read = '';

    while ( ! feof( $handle ) )
    {
        $read .= fread( $handle, 2096 );
    }

    pclose( $handle );

    return $read;
}

Now you can use that shortcode in the post editor with [python] or [python file="filename.py"].

Put the Python scripts you want to use into the same directory as the plugin file. You can also put them into a directory and adjust the path in the shortcode handler.

Now create a complex Python script like this:

print("Hello World!")

And that’s all. Use the shortcode, and get this output:

fonte
fuxia

A resposta correta omite que aprimeira linha do script Python,pelomenosnomeu caso,precisa ser #!/Usr/bin/envpython

Correct answer omits that first line of the the python script, at least in my case, needs to be #!/usr/bin/env python
- 0
- 2014-05-19
- MikeiLL
@Mikeill que depende do sistema do usuário,então deixei deliberadamente.

@MikeiLL That depends on the user’s system, so I left it out deliberately.
- 1
- 2014-05-20
- fuxia
basicamentefazendo umburaco de segurança.Se vocêpuder canalizarpara Python,vocêpode usar qualquer outroprocessotambéme issopode ser usadopara aumentar qualquerexploraçãomaistrivial.

basically making a security hole. If you can pipe to python, you can pipe to any other process as well and this can be used to escalate any more trivial exploit.
- 1
- 2018-08-15
- Mark Kaplun
@Markkaplun Sim,issonão é umaboaideia.Parafazerisso "certo",terá que haver comandoescapandoe ojavascript +phpescapando acontecendo.Estanão é umaboamaneira de desenvolver qualquer coisa dentro do WordPress,amenos que haja uma razãomuitoespecíficaparafazerisso."Os seusescrientos - osprogramadoresestavamtãopreocupados com seelespoderiam ounão,elesnãopararamparapensar se deveriam."

@MarkKaplun yes, this is not a good idea. To do this "right" there will have to be command escaping going in, and JavaScript+PHP escaping going on. This is not a good way to develop anything inside WordPress, unless there is a VERY specific reason to do this. "Your -scientists- programmers were so preoccupied with whether or not they could, they didn’t stop to think if they should."
- 0
- 2020-01-20
- Brian Stinar