A fork of the Icarus Imeji Uploader Service tweaked for better compatibility on Caddy webserver.
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IcarusImeji-Caddy/upload.php

111 lines
4.7 KiB

<?php
// Imeji Uploader Core Code -- Version 1.3 (Uploader Filename Randomizer Algorithm Update)
//
// Core Variables. Don't change unless you know what you're doing.
$imejicoreversion = "imeji_v1.3_2";
$target_dir = "public/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$target_filenameonly = basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if uploaded image file is a actual image or fake image with masked extension.
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
header('Location: ./failed.php');
}
}
// Check whether a file with the same name already exists on server or not for security reasons.
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
header('Location: ./failed.php');
}
// Check file size. (Imeji Standard Max is 6MB)
if ($_FILES["fileToUpload"]["size"] > 6291456) {
echo "Sorry, your file is too large. (Max is 6MB)";
$uploadOk = 0;
header('Location: ./failed.php');
}
// Allow only certain file formats.
// 1.1a -- Fixed uppercase rejection bug and allows them.
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "JPG" && $imageFileType != "PNG" && $imageFileType != "JPEG"
&& $imageFileType != "gif" && $imageFileType != "svg"
&& $imageFileType != "GIF" && $imageFileType != "SVG" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
header('Location: ./failed.php');
}
// Check if $uploadOk is set to 0 by an error, if so go to failure condition.
if ($uploadOk == 0) {
echo "Sorry, your file could not be uploaded.";
header('Location: ./failed.php');
// If everything is ok, try to upload file.
} else {
// 1.2a --- Changed some case-confusing characters such as I and O to web safe symbols.
// 1.3 ---- Removed some problematic symbol characters that can break CMS such as + and $.
// 1.3_0 -- Changed the filename randomizer algorithm to compensate for characters pool reduction to 62 from 64.
$characters = 'abcdefghjklmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ1234567890-_!*';
$random_string_length = 11;
$randomFilename = '';
for ($i = 0; $i < $random_string_length; $i++) {
$randomFilename .= $characters[rand(0, strlen($characters) - 1)];
}
// Day-base identifiers (Implemented in v1.3_0)
if (date('D') == 'Sun') {
$dayId = 'Q';
} else if (date('D') == 'Mon') {
$dayId = 'a';
} else if (date('D') == 'Tue') {
$dayId = 'z';
} else if (date('D') == 'Wed') {
$dayId = '2';
} else if (date('D') == 'Thu') {
$dayId = 'W';
} else if (date('D') == 'Fri') {
$dayId = 's';
} else if (date('D') == 'Sat') {
$dayId = 'x';
} else {
$dayId = '0';
}
// Hour-base identifiers (Implemented in v1.3_0 / Changed in v1.3_2)
if ((date('H') >= '00') && (date('H') <= '03')) {
$hourId = '3';
} else if ((date('H') >= '04') && (date('H') <= '07')) {
$hourId = 'E';
} else if ((date('H') >= '08') && (date('H') <= '11')) {
$hourId = 'd';
} else if ((date('H') >= '12') && (date('H') <= '15')) {
$hourId = '4';
} else if ((date('H') >= '16') && (date('H') <= '19')) {
$hourId = 'R';
} else if ((date('H') >= '20') && (date('H') <= '23')) {
$hourId = 'f';
} else {
$hourId = 'z';
}
// Finalize file upload and return output to user.
// Old line: $newfilename = $randomFilename . '.' . end(explode(".",$_FILES["fileToUpload"]["name"])); --prior to v1.3, kept for instaneous rollback safety.
$newfilename = $dayId . $hourId . $randomFilename . '.' . end(explode(".",$_FILES["fileToUpload"]["name"]));
$newtarget = $target_dir . $newfilename;
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $newtarget)) {
chmod("$newtarget", 0775); // Set read and write permissions on file
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
$uploaderlog = "" . date('U') . ", ". date('Y-m-d H:i:s e') . ", $_SERVER[REMOTE_ADDR], $newfilename" . ", " . $imejicoreversion . ", $_SERVER[HTTP_USER_AGENT]";
file_put_contents('uploads.log', $uploaderlog . PHP_EOL, FILE_APPEND);
header('Location: https://i.yandols.xyz/' . $newfilename);
} else {
// If anything wrong here, go to failure condition.
echo "Sorry, there was a problem uploading your file.";
header('Location: ./failed.php');
}
}
?>