Implement JSON interface to item and JSON itself
This commit is contained in:
parent
2cc6c7d0ee
commit
463bd267a8
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@ -0,0 +1,155 @@
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<?php
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class Item implements JsonSerializable
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{
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// TODO: Change to id here in all occurrences
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private string $hash;
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private string $extension;
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private array $tags = [];
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public static function load(MediaDB $db, string $id): ?Item
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{
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$ret = null;
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$db->map(function ($line) use (&$ret, $id) {
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if ($line[0] == $id) {
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$ret = Item::fromLine($line);
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return true;
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}
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return false;
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});
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return $ret;
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}
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public static function fromLine(array $line): Item
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{
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$ret = new Item();
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$ret->hash = array_shift($line);
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$ret->tags = $line;
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$ret->extensionFromTags();
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return $ret;
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}
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// ::upload() requires the PHP file upload ARRAY from $_FILES
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public static function upload(array $php_file): Item
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{
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$from_path = $php_file['tmp_name'] ?? null;
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// --- CHECKS ---
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if (!is_string($from_path))
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Json::error('Passed invalid upload structure')->die();
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if (!is_uploaded_file($from_path))
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Json::error('Trying to upload illegal or non-existent file')->die();
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// --- INITIALIZE ---
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$ret = new Item();
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$ret->hash = hash_file('sha256', $from_path);
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$ret->extensionFromUpload($php_file);
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// --- ACTUALLY GRAB FILE ---
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$new_path = $ret->getPath();
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if (file_exists($new_path))
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Json::error('File already exists')->die();
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if (!move_uploaded_file($from_path, $new_path))
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Json::error('Failed to move uploaded file')->die();
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return $ret;
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}
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private function extensionFromTags()
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{
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foreach ($this->tags as $i_tag) {
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$parts = explode(':', $i_tag);
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if ($parts[0] == 'format') {
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$this->extension = $parts[1];
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return;
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}
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}
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}
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// Assumes is_uploaded_file has been done
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private function extensionFromUpload(array $php_file)
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{
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$path = $php_file['tmp_name'] ?? false;
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$name = $php_file['name'] ?? null;
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// Try to get extension from mimetype
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$ext = (new finfo(FILEINFO_EXTENSION))->file($path);
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// REVIEW: Maybe change it so it doesn't have to be separated like this but
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// do somethign like ['mime/type', null] be equivalent to this?
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if (array_search($ext, ['webp', 'png', 'jpeg']) !== false) {
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$this->extension = $ext;
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return;
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}
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// If it doesn't work, try to figure it out from the original extension
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if ($ext == '???') {
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// We mustn't accept everything straight away, so we're only accepting
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// mime-type and original extension combinations that make sense
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$whitelist = [
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['application/zip', 'kra'],
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['application/zip', 'krz'],
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];
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// NOTE: The original extension has to be grabbed from the original name
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$mime = mime_content_type($path);
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$ext = pathinfo($name, PATHINFO_EXTENSION);
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if (array_search([$mime, $ext], $whitelist) !== false) {
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$this->extension = $ext;
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return;
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}
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}
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Json::error('File mime-type and or extension not allowed.')->die();
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}
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public function getHash(): string
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{
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return $this->hash;
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}
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public function getExtension(): string
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{
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return $this->extension;
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}
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public function getPath(bool $absolute = false): string
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{
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return sprintf(
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'%s/%s.%s',
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$GLOBALS[$absolute ? 'path_media' : 'path_media'],
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$this->hash,
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$this->extension
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);
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}
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public function getUri(): string
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{
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// TODO: Implement relative
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return sprintf(
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'%s/%s/%s.%s',
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$GLOBALS['base_root'],
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$GLOBALS['base_media'],
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$this->hash,
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$this->extension,
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);
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}
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public function jsonSerialize(): array
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{
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return [
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'id' => $this->hash,
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'link' => $this->getUri(),
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'tags' => $this->tags,
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];
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}
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public function getJson(): Json
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{
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return Json::new($this);
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}
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}
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@ -0,0 +1,34 @@
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<?php
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class Json implements JsonSerializable
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{
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function __construct(
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private mixed $struct
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) {
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$this->struct = $struct;
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}
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public static function new(mixed $struct): Json
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{
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return new Json($struct);
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}
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public static function error(mixed $msg): Json
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{
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return new Json([
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'type' => 'error',
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'msg' => $msg,
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]);
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}
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public function jsonSerialize(): array
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{
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return $this->struct;
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}
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public function die()
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{
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print(json_encode($this->struct));
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die();
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}
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}
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239
main.php
239
main.php
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@ -1,9 +1,5 @@
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<?php
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session_start();
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// Global variables
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$_dr = $_SERVER['DOCUMENT_ROOT'];
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// TODO: Make configurable in .ini
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@ -16,14 +12,19 @@ $GLOBALS['base_root'] =
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$_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'];
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$GLOBALS['base_media'] = 'media';
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header('Content-Type: application/json');
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include_once($_dr . '/item.php');
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include_once($_dr . '/mediadb.php');
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include_once($_dr . '/json.php');
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// ----- ROUTER -----
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(match ([$_SERVER['DOCUMENT_URI'], $_SERVER['REQUEST_METHOD']]) {
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['/item', 'POST'] => post_item(),
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['/item', 'GET'] => get_item(),
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//['/search', 'GET'] => get_search(),
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['/search', 'GET'] => get_search(),
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default => Json::error('Not implemented')
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})->die();
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@ -52,222 +53,26 @@ function post_item()
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return $item->getJson();
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};
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class MediaDB
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function get_search()
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{
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private $handler;
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private bool $finished = false;
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private array $lines = [];
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$query = $_GET['q'] ?? '';
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$limit = intval($_GET['limit'] ?? '20');
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// TODO: Implement page
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public function __construct()
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{
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// Just initialize the file handler
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$this->handler = fopen($GLOBALS['path_mediadb'], 'r');
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if ($this->handler === false)
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Json::error('Error opening media DB');
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}
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// If intval returns 0, it's an error
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if ($limit == 0) return Json::error('Invalid limit parameter');
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if ($query !== '') return Json::error('Search not implemented yet');
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private function getLine(): ?array
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{
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$ret = fgetcsv($this->handler, 0, ' ');
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if ($ret === false)
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return null;
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$list = [];
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return $ret;
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}
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$db = new MediaDB();
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$db->map(function ($line) use (&$list, $limit) {
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if (count($list) >= $limit) return true;
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public function map(callable $func)
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{
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// First read from what's already in memory
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foreach ($this->lines as $i_line) {
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if ($func($i_line) === false) return;
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}
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$list[] = Item::fromLine($line);
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// REVIEW: Maybe this isn't needed cuz the while would be as eficient
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// anyway?
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return false;
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});
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// If we already got to the end, there's no sense in carrying on
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if ($this->finished) return;
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// If we run out, read from the file and append to array so the next lookup
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// is fast
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while ($line = $this->getLine()) {
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$this->lines[] = $line;
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if ($func($line) === false) return;
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}
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// Set the flag so we don't reach this point two times
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$this->finished = true;
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}
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}
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class Item
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{
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// TODO: Change to id here in all occurrences
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private string $hash;
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private string $extension;
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private array $tags = [];
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public static function load(MediaDB $db, string $id): ?Item
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{
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$ret = null;
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$db->map(function ($line) use (&$ret, $id) {
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if ($line[0] == $id) {
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$ret = new Item();
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$ret->hash = array_shift($line);
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$ret->tags = $line;
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$ret->extensionFromTags();
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return true;
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}
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return false;
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});
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return $ret;
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}
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// ::upload() requires the PHP file upload ARRAY from $_FILES
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public static function upload(array $php_file): Item
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{
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$from_path = $php_file['tmp_name'] ?? null;
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// --- CHECKS ---
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if (!is_string($from_path))
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Json::error('Passed invalid upload structure')->die();
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if (!is_uploaded_file($from_path))
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Json::error('Trying to upload illegal or non-existent file')->die();
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// --- INITIALIZE ---
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$ret = new Item();
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$ret->hash = hash_file('sha256', $from_path);
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$ret->extensionFromUpload($php_file);
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// --- ACTUALLY GRAB FILE ---
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$new_path = $ret->getPath();
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if (file_exists($new_path))
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Json::error('File already exists')->die();
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if (!move_uploaded_file($from_path, $new_path))
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Json::error('Failed to move uploaded file')->die();
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return $ret;
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}
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private function extensionFromTags()
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{
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foreach ($this->tags as $i_tag) {
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$parts = explode(':', $i_tag);
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if ($parts[0] == 'format') {
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$this->extension = $parts[1];
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return;
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}
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}
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}
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// Assumes is_uploaded_file has been done
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private function extensionFromUpload(array $php_file)
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{
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$path = $php_file['tmp_name'] ?? false;
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$name = $php_file['name'] ?? null;
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// Try to get extension from mimetype
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$ext = (new finfo(FILEINFO_EXTENSION))->file($path);
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// REVIEW: Maybe change it so it doesn't have to be separated like this but
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// do somethign like ['mime/type', null] be equivalent to this?
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if (array_search($ext, ['webp', 'png', 'jpeg']) !== false) {
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$this->extension = $ext;
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return;
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}
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// If it doesn't work, try to figure it out from the original extension
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if ($ext == '???') {
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// We mustn't accept everything straight away, so we're only accepting
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// mime-type and original extension combinations that make sense
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$whitelist = [
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['application/zip', 'kra'],
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['application/zip', 'krz'],
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];
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// NOTE: The original extension has to be grabbed from the original name
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$mime = mime_content_type($path);
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$ext = pathinfo($name, PATHINFO_EXTENSION);
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if (array_search([$mime, $ext], $whitelist) !== false) {
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$this->extension = $ext;
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return;
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}
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}
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Json::error('File mime-type and or extension not allowed.')->die();
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}
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public function getHash(): string
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{
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return $this->hash;
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}
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public function getExtension(): string
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{
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return $this->extension;
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}
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public function getPath(bool $absolute = false): string
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{
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return sprintf(
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'%s/%s.%s',
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$GLOBALS[$absolute ? 'path_media' : 'path_media'],
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$this->hash,
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$this->extension
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);
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}
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public function getUri(): string
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{
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// TODO: Implement relative
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return sprintf(
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'%s/%s/%s.%s',
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$GLOBALS['base_root'],
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$GLOBALS['base_media'],
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$this->hash,
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$this->extension,
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);
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}
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public function getJson(): Json
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{
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return Json::new([
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'id' => $this->hash,
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'link' => $this->getUri(),
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'tags' => $this->tags,
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]);
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}
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}
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class Json
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{
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function __construct(
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private mixed $struct
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) {
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$this->struct = $struct;
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}
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public static function new(mixed $struct): Json
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{
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return new Json($struct);
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}
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public static function error(mixed $msg): Json
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{
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return new Json([
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'type' => 'error',
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'msg' => $msg,
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]);
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}
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public function die()
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{
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print(json_encode($this->struct));
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die();
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}
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return Json::new($list);
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}
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@ -0,0 +1,40 @@
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<?php
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class MediaDB
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{
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private $handler;
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private array $lines = [];
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public function __construct()
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{
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// Just initialize the file handler
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$this->handler = fopen($GLOBALS['path_mediadb'], 'r');
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if ($this->handler === false)
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Json::error('Error opening media DB');
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}
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private function getLine(): ?array
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{
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$ret = fgetcsv($this->handler, 0, ' ');
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if ($ret === false)
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return null;
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return $ret;
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}
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public function map(callable $func)
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{
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// First read from what's already in memory
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foreach ($this->lines as $i_line) {
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if ($func($i_line) === true) return;
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}
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// If we run out, read from the file and append to array so the next lookup
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// is fast
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while ($line = $this->getLine()) {
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$this->lines[] = $line;
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if ($func($line) === true) return;
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}
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}
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}
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