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118 lines
4.7 KiB
118 lines
4.7 KiB
<?php
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// Imeji Uploader Core Code -- Version 2.1 (revision 54) (Uploader Filename Randomizer Algorithm Update)
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//
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// Core Variables. Don't change unless you know what you're doing.
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$imejicoreversion = "Icarus_Imeji_V2.1_Droploader_r54";
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$target_dir = "public/";
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$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
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$target_filenameonly = basename($_FILES["fileToUpload"]["name"]);
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$uploadOk = 1;
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$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
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// Check if uploaded image file is a actual image or fake image with masked extension.
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if(isset($_POST["submit"])) {
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$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
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if($check !== false) {
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$uploadOk = 1;
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} else {
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$uploadOk = 0;
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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}
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}
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// Check whether a file with the same name already exists on server or not for security reasons.
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if (file_exists($target_file)) {
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$uploadOk = 0;
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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}
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// Check file size. (Imeji Standard Max is 6MB)
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if ($_FILES["fileToUpload"]["size"] > 6291456) {
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$uploadOk = 0;
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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}
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// Allow only certain file formats.
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// 1.1a -- Fixed uppercase rejection bug and allows them.
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if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
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&& $imageFileType != "JPG" && $imageFileType != "PNG" && $imageFileType != "JPEG"
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&& $imageFileType != "gif" && $imageFileType != "svg"
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&& $imageFileType != "GIF" && $imageFileType != "SVG" ) {
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$uploadOk = 0;
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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}
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// Check if $uploadOk is set to 0 by an error, if so go to failure condition.
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if ($uploadOk == 0) {
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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// If everything is ok, try to upload file.
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} else {
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// 1.2a --- Changed some case-confusing characters such as I and O to web safe symbols.
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// 1.3 ---- Removed some problematic symbol characters that can break CMS such as + and $.
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// 1.3_0 -- Changed the filename randomizer algorithm to compensate for characters pool reduction to 62 from 64.
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$characters = 'abcdefghjklmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ1234567890-_!*';
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$random_string_length = 11;
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$randomFilename = '';
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for ($i = 0; $i < $random_string_length; $i++) {
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$randomFilename .= $characters[rand(0, strlen($characters) - 1)];
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}
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// Day-base identifiers (Implemented in v1.3_0)
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if (date('D') == 'Sun') {
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$dayId = 'Q';
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} else if (date('D') == 'Mon') {
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$dayId = 'a';
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} else if (date('D') == 'Tue') {
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$dayId = 'z';
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} else if (date('D') == 'Wed') {
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$dayId = '2';
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} else if (date('D') == 'Thu') {
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$dayId = 'W';
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} else if (date('D') == 'Fri') {
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$dayId = 's';
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} else if (date('D') == 'Sat') {
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$dayId = 'x';
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} else {
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$dayId = '0';
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}
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// Hour-base identifiers (Implemented in v1.3_0 / Changed in v1.3_2)
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if ((date('H') >= '00') && (date('H') <= '03')) {
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$hourId = '3';
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} else if ((date('H') >= '04') && (date('H') <= '07')) {
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$hourId = 'E';
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} else if ((date('H') >= '08') && (date('H') <= '11')) {
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$hourId = 'd';
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} else if ((date('H') >= '12') && (date('H') <= '15')) {
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$hourId = '4';
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} else if ((date('H') >= '16') && (date('H') <= '19')) {
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$hourId = 'R';
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} else if ((date('H') >= '20') && (date('H') <= '23')) {
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$hourId = 'f';
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} else {
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$hourId = 'z';
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}
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// Finalize file upload and return output to user.
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// Old line: $newfilename = $randomFilename . '.' . end(explode(".",$_FILES["fileToUpload"]["name"])); --prior to v1.3, kept for instaneous rollback safety.
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$newfilename = $dayId . $hourId . $randomFilename . '.' . end(explode(".",$_FILES["fileToUpload"]["name"]));
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$newtarget = $target_dir . $newfilename;
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if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $newtarget)) {
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chmod("$newtarget", 0775); // Set read and write permissions on file
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$uploaderlog = "" . date('U') . ", ". date('Y-m-d H:i:s e') . ", $_SERVER[REMOTE_ADDR], $newfilename" . ", " . $imejicoreversion . ", $_SERVER[HTTP_USER_AGENT]";
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file_put_contents('uploads.log', $uploaderlog . PHP_EOL, FILE_APPEND);
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header('Content-type: application/json');
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echo json_encode([
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"location" => "https://i.yandols.xyz/{$newfilename}"
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]);
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return;
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} else {
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header('HTTP/1.1 400 Bad Request', true, 400);
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http_response_code(400);
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return;
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}
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}
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?>
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