Proyectos de Subversion LeadersLinked - Backend

<?php

declare(strict_types=1);

namespace LeadersLinked\Service;

class StorageService
{
    // The directory where we save image files.
    private $saveToDir = './data/upload/';
    
    // Returns path to the directory where we save the image files.
    public function getSaveToDir()
    {
        return $this->saveToDir;
    }  
    
    /*
    // Returns the array of uploaded file names.
    public function getSavedFiles()
    {
        // The directory where we plan to save uploaded files.
        
        // Check whether the directory already exists, and if not,
        // create the directory.
        if(!is_dir($this->saveToDir)) {
            if(!mkdir($this->saveToDir)) {
                throw new \Exception('Could not create directory for uploads: ' .
                    error_get_last());
            }
        }
        
        // Scan the directory and create the list of uploaded files.
        $files = [];
        $handle  = opendir($this->saveToDir);
        while (false !== ($entry = readdir($handle))) {
            
            if($entry=='.' || $entry=='..')
                continue; // Skip current dir and parent dir.
                
                $files[] = $entry;
        }
        
        // Return the list of uploaded files.
        return $files;
    }*/
    
    // Returns the path to the saved file.
    public function getFilePathByName($fileName)
    {
        // Take some precautions to make file name secure.
        $fileName = str_replace("/", "", $fileName);  // Remove slashes.
        $fileName = str_replace("\\", "", $fileName); // Remove back-slashes.
        
        // Return concatenated directory name and file name.
        return $this->saveToDir . $fileName;
    }
    
    // Returns the file content. On error, returns boolean false.
    public function getFileContent($filePath)
    {
        return file_get_contents($filePath);
    }
    
    // Retrieves the file information (size, MIME type) by image path.
    public function getImageFileInfo($filePath)
    {
        // Try to open file
        if (!is_readable($filePath)) {
            return false;
        }
        
        // Get file size in bytes.
        $fileSize = filesize($filePath);
        
        // Get MIME type of the file.
        $finfo = finfo_open(FILEINFO_MIME);
        $mimeType = finfo_file($finfo, $filePath);
        if($mimeType===false) {
            $mimeType = 'application/octet-stream';
        }
        return [
            'size' => $fileSize,
            'type' => $mimeType
         ];
    }
    
    // Resizes the image, keeping its aspect ratio.
    public  function resizeImage($filePath, $desiredWidth = 240)
    {
        // Get original image dimensions.
        list($originalWidth, $originalHeight) = getimagesize($filePath);
        
        // Calculate aspect ratio
        $aspectRatio = $originalWidth/$originalHeight;
        // Calculate the resulting height
        $desiredHeight = $desiredWidth/$aspectRatio;
        
        // Get image info
        $fileInfo = $this->getImageFileInfo($filePath);
        
        // Resize the image
        $resultingImage = imagecreatetruecolor($desiredWidth, $desiredHeight);
        if (substr($fileInfo['type'], 0, 9) =='image/png') {
            $originalImage = imagecreatefrompng($filePath);
        } else {
            $originalImage = imagecreatefromjpeg($filePath);
        }
        imagecopyresampled($resultingImage, $originalImage, 0, 0, 0, 0,
        $desiredWidth, $desiredHeight, $originalWidth, $originalHeight);
                
        // Save the resized image to temporary location
        $tmpFileName = tempnam("/tmp", "FOO");
        imagejpeg($resultingImage, $tmpFileName, 80);
                
        // Return the path to resulting image.
        return $tmpFileName;
    }
}