Ejecutando un script de Python dentro de wordpress

Question

Ejecutando un script de Python dentro de wordpress

21

71134 2013-10-27

Tengo unainstalación de WordPresspara unblogpersonal ygradualmenteestoytrasladandotodos lospequeñosbits web que heescrito a lo largo de los años a laspáginas delblog.

Una deesaspáginases http://www.projecttoomanycooks.co. uk/cgi-bin/memory/majorAnalysis.py ,quees un script de Python simple que devuelve una lista depalabras. Megustaríaincrustarese comportamientoen unapágina de wordpress. ¿Podría alguien señalarmeen la dirección correctapara ¿Laformamásfácil deejecutar un lugar de Pythonen wordpress?

EDITAR: siguiendo lamaravillosa respuesta a continuación,tengomuchomás ...pero desafortunadamentetodavíano he llegado ...

Tengo Python que seejecutaen el servidor ...

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

yestáen elmismo directorio queel complemento activado ...

El código de Python ... quetiene el siguiente código ...

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

Elphp:

 <?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;
}

fuente
Joe

- Sies un scriptmuy simple,creo que simplemente lo reescribiríaen PHP como un complemento/plantilla de WordPress ;-) Peroen algunos casos lagente usaiframesparaincrustarpáginasexternas.
  
  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 directamente?:]
  
  iframe it directly? :]
  - 0
  - 2013-10-27
  - Jesse
- ¿Esesto solo un accidente o su código de Pythonestá realmentemezclado con PHP?
  
  Is this just an accident, or is your python code really mixed with PHP?
  - 0
  - 2013-11-05
  - fuxia
- Peguéel seguimiento de laterminal,con los archivos que semuestran conel comando 'más' ... se ordenarán unpoco ...
  
  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 respuestas

votos

- 4
- 2016-10-06
Seguíel script deejemplo de laprimera respuesta,perono obtuve resultados oerrores.

Cambiéesta línea:

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

aesto:

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

y luego recibió unmensaje de "permiso denegado".

En la consola,ejecuté

chmod 777 hello.py

actualizó lapágina ytodofuncionó a laperfección.

Estepuede serelproblema que Joeestaba viendo anteriormente.Notengo suficiente representantepara hacer un comentario,lo siento.Espero queesto ayude a alguien.
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.
- No otorgueelpermiso 777. Simplemente hágaloejecutable.`chmod + xfilename.py` servirá
  
  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

Aquí hay unpequeño script que usa proc_open como seindicó anteriormente,paraenviar una variable detexto simple a un script de 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

Se agregaron algunaspruebas alfinalpara ver siel archivo de Pythones rwx. Creo que unamejormanera deenviarel argv sería usarfwrite,peronome funcionó siguiendo estetutorial .

Aquíestáel script de Python que utilicé. Como se señalóen los comentarios anteriores,algo como #!/usr/bin/env pythonpuede sernecesario,dependiendo del 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

Puede utilizar popen() para leer o escribiren una secuencia de comandos de Python (estotambiénfunciona con cualquier otroidioma). Sinecesitainteracción (pasando variables) use proc_open() .

Unejemplo sencilloparaimprimir ¡Holamundo! en un complemento de WordPress

Creeel complemento,registre un código corto:

 <?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;
}

Ahorapuede usarese código cortoen eleditor depublicaciones con [python] o [python file="filename.py"].

Coloque los scripts de Python que desea usaren elmismo directorio queel archivo del complemento. Tambiénpuedeponerlosen un directorio y ajustar la rutaen elmanejador de shortcode.

Ahora cree una secuencia de comandos de Python compleja comoesta:

 print("Hello World!")

Yesoestodo. Utiliceel código corto y obtengaeste resultado:

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:

fuente
fuxia

La respuesta correcta omite laprimera línea del script de Python,almenosen mi caso,debe 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 Eso depende del sistema del usuario,así que lo omití deliberadamente.

@MikeiLL That depends on the user’s system, so I left it out deliberately.
- 1
- 2014-05-20
- fuxia
básicamente haciendo un agujero de seguridad.Sipuede canalizar a Python,tambiénpuede canalizar a cualquier otroproceso yestopuede usarseparaescalar cualquierexploitmástrivial.

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 sí,estanoes unabuenaidea.Para haceresto "correctamente",tendrá que haber unescape de comandosentrando y unescape de JavaScript + PHP.Estanoes unabuenaforma de desarrollarnada dentro de WordPress,amenos queexista una razón MUYespecíficapara hacerlo."Sus -científicos-programadoresestabantanpreocupadospor sipodían ono,queno se detuvieron apensar si deberían hacerlo".

@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