REST image API with base64 encoding

egils · August 4, 2020, 11:42pm

Hi. I would like to upload product images with a filename and a base64 encoded string and let doli take care of resizing and adding them to the system.
Does anybody have any code to do this?

fappels · August 5, 2020, 9:42am

I have some code, you can have a look in my own custom api. The base64 upload is in class ExtDirectProduct method addBase64Jpeg()

egils · August 5, 2020, 10:47pm

Very nice!
With this code it should be straight forward to create a core REST api for this it seems. I’m not that skilled with PHP yet so I probably won’t do it anytime soon.

github.com

fappels/dolibarrextdirect/blob/c890cdd49da400a47b51b037b37e3f902ea6a365/extdirect/class/ExtDirectProduct.class.php#L1802


    $dir = $conf->product->multidir_output[(int) $this->entity];
}

$tdir = $dir. '/temp';

if (! empty($conf->global->PRODUCT_USE_OLD_PATH_FOR_PHOTO) || (ExtDirect::checkDolVersion() <= 3.6)) $dir .= '/'. get_exdir($this->id,2) . $this->id ."/photos";
else $dir .= '/'.dol_sanitizeFileName($this->ref);

dol_mkdir($tdir);
dol_mkdir($dir);
$base64 = explode(',', $base64JpegUrl);
$imgdata = base64_decode($base64[1]);

if (substr($imgdata,0,3)=="\xff\xd8\xff") { // only jpeg
    $filename = 'ExtDirectUpload'. $this->id . '_' . $index . '.jpg';    
    if (is_dir($tdir) && (file_put_contents($tdir.$filename, $imgdata, LOCK_EX) > 0)) {
        if (is_dir($dir)) {
            dol_move($tdir.$filename, $dir.'/'.$filename);
            if (file_exists(dol_osencode($dir.'/'.$filename)))
            {
                // Cree fichier en taille vignette

It looks like the data is sent via GET, is that correct? That imposes a size constraint, right?

fappels · August 6, 2020, 8:12am

It’s POST, variable name is badly chosen. I named it url because has some header like “data: image/jpeg;base64,…”. All POST is handled and converted to RPC by small php file router.php