Combiner une classe Upload et une classe ImageResize

Bonjour à toutes et tous,

J'ai créé deux classes adaptées de codes existants.
La première classe Upload fonctionne bien en autonome.
Je voudrais que la valeur de retour de la méthode ImageResize::save() puisse être utilisée avant enregistrement par la classe Upload mais je ne sais pas quelle valeur de retour envoyer pour l'ntégrer dans la classe Upload avant de l'enregistrer avec move_uploaded_file.

Classe Upload:

Code:

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<?php   /**  * class Upload  * Version 1.0.0 (30/06/22)  * Author moimp  * Based on https://github.com/grunk/Pry/blob/fa3104194aeec40c416e53f742f1ad4575561f13/Pry/File/Upload.php#L206  * Documentation on https://github.com/grunk/Pry/tree/master/doc namespace Upload; require_once('FileTools.php'); require_once('StringTools.php'); use FileTools\FileTools; use StringTools\StringTools; /**  * Class to upload multiple files.  * Optional use of finfo or mimemagic (see https://rubygems.org/gems/mimemagic?locale=fr)  */   class Upload {   const MIME_CHECK_BROWSER = 1; const MIME_CHECK_FINFO = 2; const MIME_CHECK_MIMETYPE = 3; const MIME_CHECK_NONE = 4; const REQUIRE_ALL = 1; const REQUIRE_YES = 2; const REQUIRE_NO = 3; const WMODE_OVERWRITE = 1; const WMODE_COPY = 2; const WMODE_CANCEL = 3; /* /** * Max filesize in bytes * @var int */ private $maxFileSize;   /** * Targetpath for uploaded files * @var string */ private $uploadDir;   /** * Path to magicmime file * @var string */ private $magicFile;   /** * Mime: check type * @var int */ private $mimetypeCheck;   /** * Writemode for uploading files * @var int */ private $writeMode;   /** * Secure mode or not * @var boolean */ private $secureMode;   /** * File required or not * @var int */ private $required;   /** * Allowed extensions * @var array */ private $extensions;   /** * Allowed mimetypes * @var array */ private $mimeTypes;   /** * Fieldnames for files to upload * @var string */ private $fieldName;   /** * Filename * @var string */ private $fileName;   /** * Filename cleaned or not * @var boolean */ private $cleanName;   /** * Préfix for filename * @var string */ private $prefix;   /** * Suffix for filename * @var <string */ private $suffix;   /** * Uploaded files summaries * @var array */ private $uploadedFileSummaries;   /** * Found errors * @var mixed */ private $errors;   /** Temporary name * @var string */ private $fileNameTmp;     private $_taille = 0; private $_nom = ''; private $_temp = ''; private $_mime = ''; private $_image = false; private $_error = ''; private $_ext = '';   /** * Constructor * @param string $dir Target path for files * @param string $fieldName Uploading fieldnames * @param int [$mimetypeCheck] Mode to check type (browser) */ public function __construct(string $dir, string $fieldName, int $mimetypeCheck = 1) { $this->maxFileSize = str_replace('M', '', ini_get('upload_max_filesize')) * 1024 * 1024; $this->uploadDir = $this->checkPath($dir); $this->magicFile = ''; $this->mimetypeCheck= intval($mimetypeCheck); $this->writeMode = self::WMODE_OVERWRITE; $this->required = self::REQUIRE_NO; $this->extensions = array('jpg', 'png', 'gif'); $this->mimeTypes = array('image/gif', 'image/jpeg', 'image/png', 'text/plain', 'application/pdf'); $this->fieldName = $fieldName; $this->fileName = ''; $this->fileNameTmp = ''; $this->prefix = ''; $this->suffix = ''; $this->uploadedFileSummaries= array(); $this->secureMode = false; $this->cleanName = false; $this->errors = array(); }   /** * Trigger fileuploads * @return array */ public function upload() { if (!isset($_FILES[$this->fieldName]['tmp_name'])) throw new \UnexpectedValueException('Error: No filedata');   $nbFile = count($_FILES[$this->fieldName]['tmp_name']);   for ($i = 0; $i < $nbFile; $i++) { $this->fileNameTmp = ''; $this->_taille = $_FILES[$this->fieldName]['size'][$i]; $this->_nom = $_FILES[$this->fieldName]['name'][$i]; $this->_temp = $_FILES[$this->fieldName]['tmp_name'][$i]; $this->_mime = $_FILES[$this->fieldName]['type'][$i]; $this->_image = false; // added by moimp if (!empty($this->_nom)) $this->_ext = FileTools::getExtension($this->_nom); $this->_error = $_FILES[$this->fieldName]['error'][$i];   if ($this->_error == UPLOAD_ERR_OK and is_uploaded_file($_FILES[$this->fieldName]['tmp_name'][$i])) { if ($this->mimetypeCheck == self::MIME_CHECK_FINFO) { $finfo = new \finfo(FILEINFO_MIME, $this->magicFile); $this->_mime = $finfo->file(realpath($this->_temp)); // Can return mimetypes as "text/plain; charset=utf-8" $posSemiCol = strpos($this->_mime, ';'); if ($posSemiCol !== false) $this->_mime = substr($this->_mime, 0, $posSemiCol); } elseif ($this->mimetypeCheck == self::MIME_CHECK_MIMETYPE) $this->_mime = mime_content_type(realpath($this->_temp)); elseif ($this->mimetypeCheck == self::MIME_CHECK_NONE) $this->_mime = false;   if ($this->checkSize()) { if ($this->checkExtension()) { if ($this->checkMime()) { // following code added by moimp $this->getImgData(); if ($this->_image === 'err') { $this->errors[$i] = "The uploaded file is not an image."; } // end of added code $this->buildName(); if ( ! $this->write() ) { $this->errors[$i] = "Cannot write on harddisk. "; } } else { $this->errors[$i] = "This filetype is not allowed. "; } } else { $this->errors[$i] = "This file extension is not allowed. "; } } else { $this->errors[$i] = "Filesize exceeds the allowed size. "; } } else { if ($this->required == self::REQUIRE_ALL or $this->required == self::REQUIRE_YES and $i == 0) $this->errors[$i] = "Error by uploading. Too big filesize or no required file? "; } }   return $this->getError(); }   /** * Define max filesize. * Allows (int) or string as 500K, 2M * @param mixed $size * @return Upload */ public function setMaxFileSize(string $size) { $this->maxFileSize = FileTools::getByteSize($size); return $this; }   /** * Define path for magicmime files * @param string $dir * @return Upload */ /* public function setMagicFile($path) { $this->magicFile = $path; return $this; } */   /** * Define writemode * @param int $mode (one of constants WMODE_OVERWRITE, WMODE_COPY, WMODE_CANCEL) * @return Upload */ public function setWriteMode($mode) { $this->writeMode = intval($mode); return $this; }   /** * Define if files are required or not * @param int $mode * @return Upload */ public function setRequired($mode) { $this->required = intval($mode); return $this; }   /** * Define a (string) or multiple (array) of allowed extensions * @param mixed $newExt * @return Upload */ public function setAllowedExtensions($newExt) { if (is_array($newExt)) foreach ($newExt as $value) $this->extensions[] = $value; else $this->extensions[] = $newExt;   return $this; }   /** * Return allowed extensions * @return array */ public function getExtensions() { return $this->extensions; }   /** * Remove an extension * @param string $extToRemove * @return Upload */ public function removeExtension(string $extToRemove) { $key = array_search($extToRemove, $this->extensions); if ($key) unset($this->extensions[$key]);   return $this; }   /** * Remove all extensions * @return Upload */ public function flushAllowedExtensions() { $this->extensions = array(); return $this; }   /** * Define a (string) or multiple (array) of allowed mimetypes * @param mixed $newMime * @return Upload */ public function setAllowedMime($newMime) { if (is_array($newMime)) foreach ($newMime as $value) $this->mimeTypes[] = $value; else $this->mimeTypes[] = $newMime;   return $this; }   /** * Return allowed mimetypes * @return array */ public function getMime() { return $this->mimeTypes; }   /** * Remove a mimetype * @param string $mimeToRemove * @return Upload */ public function removeMime(string $mimeToRemove) { $key = array_search($mimeToRemove, $this->mimeTypes); if ($key) unset($this->mimeTypes[$key]);   return $this; }   /** * Remove all mimetypes * @return Upload */ public function flushAllowedMime() { $this->mimeTypes = array(); return $this; }   /** * Define filename after uploaded * @param string $name * @return Upload */ public function setFileName(string $name) { $this->fileName = trim($name); return $this; }   /** * Define préfix of filename * @param string $prefix * @return Upload */ public function setPrefix(string $prefix) { $this->prefix = trim($prefix); return $this; }   /** * Define suffix of filename * @param string $suffix * @return Upload * Note: impact basename */ public function setSuffix(string $suffix) { $this->suffix = trim($suffix); return $this; }   /** * Define securemode where application files or dangerous files are not allowed * @param boolean $mode * @return Upload */ public function setSecureMode(bool $mode) { $this->secureMode = $mode; return $this; }   /** * Enable or disabled cleaning of filename * @param boolean $bool * @return Upload */ public function cleanName(bool $bool) { $this->cleanName = $bool; return $this; }   /** * Return an array of all errors * @return mixed */ public function getError() { if (!empty($this->errors)) return $this->errors; else return false; }   /** * Return an array of all sent files * @return array */ public function getSummaries() { return $this->uploadedFileSummaries; }   /** * Get imagedata * @return wether imagedata or boolean if uploaded file is not an image * Function added by moimp */ private function getImgData() { if (strpos($this->_mime, 'image/') !== false) { $this->_image = getimagesize(realpath($this->_temp)); if ( !( is_int($this->_image[0]) && is_int($this->_image[1]) && is_int($this->_image[2]) && is_int($this->_image['bits']) && strpos($this->_image['mime'], 'image/') !== false ) ) { $this->_image = 'err'; } } else { $this->_image = false; }   }   /** * Check if a path is correct * @param string $path * @return boolean */ private function checkPath(string $path) { $path = trim($path); $path = rtrim($path, '/\\').'/'; // line added by moimp to allowed pathes ended wether with or whithout '/' or '\'   if (!is_dir($path)) throw new \InvalidArgumentException($path . ' is not a valid path'); if (!is_writable($path)) throw new \RuntimeException($path . ' is not open in write mode');   return $path; }   /** * Write file on harddisk on the wished place * @return boolean */ private function write() {   if ($this->writeMode == self::WMODE_OVERWRITE) { if ($this->exist()) unlink($this->uploadDir . $this->fileNameTmp); $uploaded = move_uploaded_file($this->_temp, $this->uploadDir . $this->fileNameTmp); } elseif ($this->writeMode == self::WMODE_COPY) { if ($this->exist()) $this->fileName = 'Copy_' . $this->fileNameTmp; $uploaded = move_uploaded_file($this->_temp, $this->uploadDir . $this->fileNameTmp); } else { if (!$this->exist()) $uploaded = move_uploaded_file($this->_temp, $this->uploadDir . $this->fileNameTmp); else $uploaded = false; }   if ($uploaded) { $this->uploadedFileSummaries[] = array( 'nom' => $this->fileNameTmp, 'nom_base' => $this->_nom, 'ext' => $this->_ext, 'mime' => $this->_mime, 'path' => $this->uploadDir, 'octet' => $this->_taille, 'size' => number_format($this->_taille / 1024, 2, '.', ''), 'image' => $this->_image // added by moimp ); return true; } return false; }   /** * Check filesize * @return boolean */ private function checkSize() { if ($this->maxFileSize > $this->_taille) return true; return false; }   /** * Check the filename extension * @return boolean */ private function checkExtension() { if (in_array($this->_ext, $this->extensions)) return true; return false; }   /** * Check mimetype of the file * @return boolean */ private function checkMime() { if ($this->mimetypeCheck != self::MIME_CHECK_NONE) { if ($this->secureMode) { if (!in_array($this->_mime, $this->mimeTypes) || strpos($this->_mime, 'application') || preg_match("/.php$|.php3$|.php5$|.inc$|.js$|.exe$/i", $this->_ext)) return false; } else { if (!in_array($this->_mime, $this->mimeTypes)) return false; } } return true; }   /** * Build filename * @return void */ private function buildName() { if ($this->fileName == '') $this->fileNameTmp = substr($this->_nom, 0, strrpos($this->_nom, '.')); else $this->fileNameTmp = $this->fileName;   if ($this->cleanName) $this->fileNameTmp = StringTools::clean($this->fileNameTmp); $this->fileNameTmp = $this->prefix . $this->fileNameTmp . $this->suffix . '.' . $this->_ext; }   /** * Check if file exists * @access private * @return boolean */ private function exist() { if (file_exists($this->uploadDir . $this->fileNameTmp)) return true; return false; } }

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Classe ImageResize:

Code:

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<?php   /**  * Class ImageResize to handle images  * Version 1.0.0 (10/07/22)  * Author moimp  * Based on https://waytolearnx.com/2019/07/redimensionner-une-image-en-php.html  */   namespace ImageResize;   class ImageResize {   /** * Sourcepath * @var string */ private $sourcePath;   /** * Targetpath * @var string */ private $targetPath;   /** * Save proportion or not * @var boolean */ private $proportion;   /** * Basename of imagename * @var boolean */ private $imagename;   /** * Infos of image * @var array */ private $infos;   /** * Imagewidth * @var int */ private $sourceWidth;   /** * Imageheight * @var int */ private $sourceHeight;   /** * fixTargetWidth * @var int */ private $fixTargetWidth;   /** * maxTargetHeight * @var int */ private $fixTargetHeight;   /** * targetWidth * @var int */ private $targetWidth;   /** * targetHeight * @var int */ private $targetHeight;   /** * Mimetype * @var string */ private $mime;     /** * Constructor * @param string $sourcePath file to be resized * @param boolean $proportion proprtion is to be saved or not */ public function __construct(string $sourcePath, string $targetPath, bool $proportion = true) { $this->sourcePath = $sourcePath; $this->targetPath = $targetPath; $this->proportion = $proportion; $this->imagename = basename($sourcePath); $this->infos = getimagesize($sourcePath); list($this->sourceWidth, $this->sourceHeight) = $this->infos; $this->mime = $this->infos['mime']; $this->fixTargetWidth = null; $this->fixTargetHeight = null; $this->targetWidth = $this->sourceWidth; $this->targetHeight = $this->sourceHeight; }   /** * Save image */ public function save(){   // Set target size if ($this->proportion) { $rate = $this->sourceWidth / $this->sourceHeight; if (isset($this->fixTargetWidth) && !isset($this->fixTargetHeight)) { $this->targetWidth = $this->fixTargetWidth; $this->targetHeight = $this->targetWidth / $rate; } elseif (!isset($this->fixTargetWidth) && isset($this->fixTargetHeight)) { $this->targetHeight = $this->fixTargetHeight; $this->targetWidth = $this->targetHeight * $rate; } elseif (isset($this->fixTargetWidth, $this->fixTargetHeight)) { throw new \Exception('You cannot set fixTargetWidth AND fixTargetHeight.'); } } else { if (isset($this->fixTargetWidth)) $this->targetWidth = $this->fixTargetWidth; if (isset($this->fixTargetHeight)) $this->targetHeight = $this->fixTargetHeight; }   // Handle saving $objImg = imagecreatetruecolor($this->targetWidth, $this->fixTargetHeight); $image = $imageCreateFunc($this->targetPath); imagecopyresampled($objImg, $image, 0, 0, 0, 0, $this->targetWidth, $this->targetHeight, $this->sourceWidth, $this->sourceHeight); $imageSaveFunc($objImg, $this->targetPath);       // ... }   private function setFunctions() { switch ($this->mime) { case 'image/jpeg': $imageCreateFunc = 'imagecreatefromjpeg'; $imageSaveFunc = 'imagejpeg'; break;   case 'image/png': $imageCreateFunc = 'imagecreatefrompng'; $imageSaveFunc = 'imagepng'; break;   case 'image/gif': $imageCreateFunc = 'imagecreatefromgif'; $imageSaveFunc = 'imagegif'; break;   default: throw new Exception('Unknown image type'); }   }   public function setFixTargetWidth(int $width) { $this->fixTargetWidth = $width; return $this; }   public function setFixTargetHeight(int $height) { $this->fixTargetHeight = $height; return $this; }   }

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Code de test:

Code:

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<?php declare(strict_types=1); ?>   <!DOCTYPE html>   <body> <form method="post" enctype='multipart/form-data'> <!-- <input type="hidden" name="MAX_FILE_SIZE" value="100000"> --> <input type="file" name="files[]"><br> <input type="file" name="files[]"><br> <input type="submit" name="submit" value="Enregistrer"><br> </form> <script> if (! document.querySelector("[type='file']").form.hasAttribute('enctype')) alert("You have a field with type 'file' without parentform has an attribute \"enctype='multipart/form-data'\"."); </script> </body>   <?php   require_once("../classes/moimp/Upload.php"); require_once("../classes/moimp/ImageResize.php");   use Upload\Upload; use ImageResize\ImageResize;   $post = $_POST;   if (isset($post['submit'])) { $up = new Upload(__dir__, 'files', Upload::MIME_CHECK_FINFO); $img= new ImageResize($_FILES['files']['tmp_name'][0], __dir__, true);   // Remove all extensions //$up->flushAllowedExtensions();   // Define a (string) or multiple (array) of allowed extensions //$up->setAllowedExtensions(['type1']);   // Remove an extension //removeExtension($extToRemove);   // Define a (string) or multiple (array) of allowed mimetypes //$up->setAllowedMime($mime);   // Remove one mimetype //removeMime($mimeToRemove);   // Remove all mimetypes //flushAllowedMime();   //$img->setFixTargetWidth(50); $img->setFixTargetHeight(100); $img->save(); var_dump($img);   $up->setMaxFileSize('5M')->setWriteMode(Upload::WMODE_OVERWRITE); $up->setRequired(Upload::REQUIRE_YES); $up->setSecureMode(true); $up->getError();   $errors = $up->upload(); var_dump($up); if(empty($errors)){ $up->getSummaries(); var_dump($up->getSummaries() ); } else{ foreach($errors as $key=>$err){ echo '<span style="color:red;font-weight:bold;">'.$err."</span>"; } } }

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Bonjour,

Je ne vois pas tellement l'intérêt d'appeler $img->save() avant $up->upload(), pour moi, il faudrait plutôt faire le contraire :
- 1. uploader l'image dans un répertoire temporaire en utilisant la classe "Upload";
- 2. redimensionner l'image en utilisant la classe "ImageResize";
- 3. supprimer l'image temporaire;

Où alors, j'ai pas compris...

Il y a un quelque chose qui me semble bizarre au niveau de la méthode ImageResize->save(), les données de l'image source ne sont pas utilisées mis à part la largeur et la hauteur, est-ce qu'il ne manque pas une fonction du genre "imagecopymerge ?

Sinon, c'est effectivement dans cette méthode que l'on pourrait appeler $up->upload(), personnellement, je trouve pas ça très logique mais bon...

Citation:

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Envoyé par Soundboy39

Je ne vois pas tellement l'intérêt d'appeler $img->save() avant $up->upload(), pour moi, il faudrait plutôt faire le contraire :
- 1. uploader l'image dans un répertoire temporaire en utilisant la classe "Upload";
- 2. redimensionner l'image en utilisant la classe "ImageResize";
- 3. supprimer l'image temporaire;

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Merci pour cette remarque. C'est effectivement plus clair et de plus ça permet de ne traiter qu'une chose à la fois.

Citation:

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Envoyé par Soundboy39

Il y a un quelque chose qui me semble bizarre au niveau de la méthode ImageResize->save(), les données de l'image source ne sont pas utilisées mis à part la largeur et la hauteur, est-ce qu'il ne manque pas une fonction du genre "imagecopymerge ?

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Par contre là, j'ai un peu plus de difficultés. Dans le code que j'ai pris comme exemple, il y a une fonction imagecopyresampled() et je ne vois pas trop la différence avec imagecopymerge(). Je dois dire que je débute complètement avec le traitement d'image.

Voici le code de la méthode ImageResize::save() après correction:

Code:

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public function save(){   // Set target size if ($this->proportion) { $rate = $this->sourceWidth / $this->sourceHeight; if (isset($this->fixTargetWidth) && !isset($this->fixTargetHeight)) { $this->targetWidth = $this->fixTargetWidth; $this->targetHeight = $this->targetWidth / $rate; } elseif (!isset($this->fixTargetWidth) && isset($this->fixTargetHeight)) { $this->targetHeight = $this->fixTargetHeight; $this->targetWidth = $this->targetHeight * $rate; } elseif (isset($this->fixTargetWidth, $this->fixTargetHeight)) { throw new \Exception('You cannot set fixTargetWidth AND fixTargetHeight.'); } } else { if (isset($this->fixTargetWidth)) $this->targetWidth = $this->fixTargetWidth; if (isset($this->fixTargetHeight)) $this->targetHeight = $this->fixTargetHeight; }   // Handle saving $objImg = imagecreatetruecolor($this->targetWidth, $this->targetHeight); $imageCreateFunc = $this->imageCreateFunc; $imageSaveFunc = $this->imageSaveFunc; $image = $imageCreateFunc($this->targetPath); imagecopyresampled($objImg, $image, 0, 0, 0, 0, $this->targetWidth, $this->targetHeight, $this->sourceWidth, $this->sourceHeight); $imageSaveFunc($objImg, $this->targetPath); }

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A la première utilisation, ce code génère deux erreurs que je ne comprends pas:
1ère erreur:

Citation:

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imagecreatefrompng(C:\wamp64\www\proginet\appSirep\_test/0b.png): failed to open stream: No such file or directory in C:\wamp64\www\proginet\appSirep\classes\moimp\ImageResize.php on line 34

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2ème erreur:

Citation:

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Warning: imagecopyresampled() expects parameter 2 to be resource, bool given in C:\wamp64\www\proginet\appSirep\classes\moimp\ImageResize.php on line 35

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EDIT: Je comprends cette erreur puisque à la suite de la ligne 34, $image vaut false.

Une image noire est créée.

Je n'ai plus ces erreurs si j'actualise la page mais l'image reste une image noire.

EDIT 2: Précision qui peut avoir son importance: J'utilise PHP 7.4.0.

C'est bon, j'ai trouvé un magnifique tuto qui m'a permis de mieux comprendre ce que je fais et m'a aider à résoudre les erreurs restantes.

Alternativement tu peux aussi utiliser ce module d'upload. Il est livré prêt à l'emploi avec une vingtaine d'exemples fonctionnels dont l'utilisation du module de traitement d'images, avec optimisation, redimensionnement, de même que recadrage et création de filigrane wysiwyg. Toutes ces fonctions peuvent être utilisées conjointement. Concernant le redimensionnement qui t'intéresse ici, tu peux définir une largeur ou une hauteur maximum, mais aussi les deux en même temps et dans ce cas le premier maximum atteint définira la taille maximale. Le module d'upload gère aussi les erreurs fatales du serveur ce qui peut être utile pour le traitement sur les images en cas de dépassement de la mémoire allouée pour le script.