LandiniPlugin.php

<?php
if (!is_file(dirname(__FILE__) . '/../plugins-resources/loader.php')) {
    die(
        'ERROR!: need any Appgini plugins first, plugins-resources folder not found!'
    );
}
include dirname(__FILE__) . '/../plugins-resources/loader.php';

class LandiniPlugin extends AppGiniPlugin
{
    public $title;
    public $name;
    public $logo;
    public $errors;
    /* add any plugin-specific properties here */

    public function __construct($config = [])
    {
        parent::__construct($config);

        /* add any further plugin-specific initialization here */
    }

    /* add any further plugin-specific methods here */

    public function add_to_file(
        $file_path,
        $find_function = false,
        $code,
        $location = 0
    ) {
        /* Check if file exists and is writable */
        $file_code = @file_get_contents($file_path);
        if (filesize($file_path) > 0) {
            if (!$file_code) {
                return $this->error(
                    'add_to_file',
                    'Unable to access file: ' . $file_path
                );
            }
        }

        /* Find extra function */
        if ($find_function) {
            $search = '/(' . $find_function . ')/';
            preg_match_all($search, $file_code, $matches, PREG_OFFSET_CAPTURE);
            if (count($matches) < $location + 1) {
                return $this->error(
                    'add_to_file',
                    'Could not determine correct function location'
                );
            }
            /* start position of extra function */
            $hf_position = $matches[0][$location][1];

            /* position of next function, or EOF position if this is the last function in the file */
            $nf_position = strlen($file_code);
            preg_match_all(
                '/(<!-- group and IP address -->)/',
                $file_code,
                $matches,
                PREG_OFFSET_CAPTURE,
                $hf_position + 10
            );
            if (count($matches)) {
                $nf_position = $matches[0][0][1];
            }
            /* extras function code */
            $old_function_code = substr(
                $file_code,
                $hf_position,
                $nf_position - $hf_position
            );
        } else {
            $old_function_code = substr($file_code, 0);
        }

        /* Checks $code is not already in there */
        if (strpos($old_function_code, $code) !== false) {
            return $this->error('add_to_file', 'Code already exists');
        }

        /* insert $code and save */
        $code_comment =
            "/* Inserted by {$this->title} on " . date('Y-m-d h:i:s') . ' */';
        $new_code = "\n<?php {$code_comment} ?>\n\t\t{$code}\n<?php /* End of {$this->title} code */ ?>\n";

        $new_function_code = preg_replace(
            '/' . makeSafe($find_function) . '/',
            $new_code,
            $old_function_code,
            1
        );
        if (!$new_function_code) {
            return $this->error('add_to_file', 'Error while injecting code');
        }
        if ($new_function_code == $old_function_code) {
            return $this->error('add_to_file', 'Nothing changed');
        }

        $file_code = substr_replace($file_code, $new_function_code, 0);
        //$file_code = substr_replace($file_code, $new_function_code,$hf_position + strlen($find_function) ,0);
        if (!@file_put_contents($file_path, $file_code)) {
            return $this->error('add_to_file', 'Could not save changes');
        }

        return true;
    }

    public function my_copy_file($src, $dest, $log = false)
    {
        if ($log) {
            $this->progress_log->add(
                'Copying ' . basename($src) . ' ... ',
                'text-info'
            );
        }
        if (!is_file($src)) {
            if ($log) {
                $this->progress_log->failed();
            }
            return false;
        }
        
        $path = pathinfo($dest);
        if (!file_exists($path['dirname'])) {
            mkdir($path['dirname'], 0777, true);
        }

        if (!@copy($src, $dest)) {
            if ($log) {
                $this->progress_log->failed();
            }
            return false;
        }

        if ($log) {
            $this->progress_log->ok();
        }
        return true;
    }

    public function check_if_exist_code($hook_file_path, $hook_function=false, $code)
    {
        /* Check if hook file exists and is writable */
        $hook_code = @file_get_contents($hook_file_path);
        if (!$hook_code) {
            return $this->error('check_hook', 'Unable to access hook file');
        }
        
        if ($hook_function){

            /* Find hook function */
            preg_match('/function\s+' . $hook_function . '\s*\(/i', $hook_code, $matches, PREG_OFFSET_CAPTURE);
            if (count($matches) != 1) {
                return $this->error('check_hook', 'Could not determine correct function location');
            }

            /* start position of hook function */
            $hf_position = $matches[0][1];
                    
            /* position of next function, or EOF position if this is the last function in the file */
            $nf_position = strlen($hook_code);
            preg_match('/function\s+[a-z0-9_]+\s*\(/i', $hook_code, $matches, PREG_OFFSET_CAPTURE, $hf_position + 10);
            if (count($matches)) {
                $nf_position = $matches[0][1];
            }
            $old_function_code = substr($hook_code, $hf_position, $nf_position - $hf_position);
        }else{
            
            $old_function_code = substr($hook_code, 0);
        }
            
                
        /* hook function code */
            
        /* Checks $code is not already in there */
        if (strpos($old_function_code, $code) !== false) {
            $this->error('check_hook', 'Code already exists');
            return true;
        }else{
            return false;
        }
    }
}