I'm trying to upload an image to S3 without using an input or html form.
My desired process is as follows: merge two HTML canvases, convert to base64, download as image, send image via email, upload to S3. My current code is as below:
function convertImage() {
var bottleCanvas = document.getElementById('bottleCanvas');
var designCanvas = document.getElementById('editorCanvas');
var bottleContext = bottleCanvas.getContext('2d');
if($('.colourCanvas500').is(':visible')) {
bottleContext.drawImage(designCanvas, 153, 250);
}
else if($('.colourCanvas600').is(':visible')) {
bottleContext.drawImage(designCanvas, 155, 238);
}
else if($('.whiteCanvas500').is(':visible')) {
bottleContext.drawImage(designCanvas, 132, 235);
}
else if($('.whiteCanvas600').is(':visible')) {
bottleContext.drawImage(designCanvas, 132, 235);
}
var data = bottleCanvas.toDataURL("image/png");
var link = document.createElement('a');
link.download = "bottle-design.png";
var dataLink = bottleCanvas.toDataURL("image/png").replace("image/png", "image/octet-stream");
//document.write(dataLink);
link.href = dataLink;
link.click();
$('#imageInput').val(data);
$('form[name="bottleDetails"]').submit();
}
I have the following code I'm using to upload a logo to S3 from file:
<?php
include('php/image_check.php');
$msg='';
if($_SERVER['REQUEST_METHOD'] == "POST")
{
$name = $_FILES['file']['name'];
$size = $_FILES['file']['size'];
$tmp = $_FILES['file']['tmp_name'];
$ext = getExtension($name);
if(strlen($name) > 0)
{
if(in_array($ext,$valid_formats))
{
if($size<(2048*2048))
{
include('php/s3_config.php');
//Rename image name.
$actual_image_name = time().".".$ext;
if($s3->putObjectFile($tmp, $bucket , $actual_image_name, S3::ACL_PUBLIC_READ) )
{
$s3file='http://'.$bucket.'.s3.amazonaws.com/'.$actual_image_name;
session_start();
$_SESSION['uploadedImage'] = $s3file;
header('Location: builder.php');
}
else
$msg = "S3 Upload Fail.";
}
else
$msg = "Image size Max 2 MB";
}
else
$msg = "Invalid file, please upload image file.";
}
else
$msg = "Please select image file.";
}
?>
How would I go about uploading my base64/canvas image to S3 using PHP without a form?
You can do this by sending the base64 string via Ajax to your server(to the php file)
jQuery has a function for this: https://api.jquery.com/jquery.ajax/
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