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post.php: use HttpDriver for remote file download

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This commit is contained in:
Zankaria 2024-03-12 15:37:00 +01:00
parent c20b0ba6f0
commit 2cad97775a
1 changed files with 33 additions and 39 deletions
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72
post.php
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@ -5,6 +5,9 @@
require_once 'inc/bootstrap.php';
use Vichan\AppContext;
use Vichan\Driver\HttpDriver;
/**
* Utility functions
*/
@ -61,54 +64,27 @@ function strip_symbols($input) {
}
}
/**
* Download the url's target with curl.
*
* @param string $url Url to the file to download.
* @param int $timeout Request timeout in seconds.
* @param File $fd File descriptor to save the content to.
* @return null|string Returns a string on error.
*/
function download_file_into($url, $timeout, $fd) {
$err = null;
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_FAILONERROR, true);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);
curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
curl_setopt($curl, CURLOPT_USERAGENT, 'Tinyboard');
curl_setopt($curl, CURLOPT_FILE, $fd);
curl_setopt($curl, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
curl_setopt($curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
if (curl_exec($curl) === false) {
$err = curl_error($curl);
}
curl_close($curl);
return $err;
}
/**
* Download a remote file from the given url.
* The file is deleted at shutdown.
*
* @param HttpDriver $http The http client.
* @param string $file_url The url to download the file from.
* @param int $request_timeout Timeout to retrieve the file.
* @param array $extra_extensions Allowed file extensions.
* @param string $tmp_dir Temporary directory to save the file into.
* @param array $error_array An array with error codes, used to create exceptions on failure.
* @return array Returns an array describing the file on success.
* @throws Exception on error.
* @return array|false Returns an array describing the file on success, or false if the file was too large
* @throws InvalidArgumentException|RuntimeException Throws on invalid arguments and IO errors.
*/
function download_file_from_url($file_url, $request_timeout, $allowed_extensions, $tmp_dir, &$error_array) {
function download_file_from_url(HttpDriver $http, $file_url, $request_timeout, $allowed_extensions, $tmp_dir, &$error_array) {
if (!preg_match('@^https?://@', $file_url)) {
throw new InvalidArgumentException($error_array['invalidimg']);
}
if (mb_strpos($file_url, '?') !== false) {
$url_without_params = mb_substr($file_url, 0, mb_strpos($file_url, '?'));
$param_idx = mb_strpos($file_url, '?');
if ($param_idx !== false) {
$url_without_params = mb_substr($file_url, 0, $param_idx);
} else {
$url_without_params = $file_url;
}
@ -128,10 +104,13 @@ function download_file_from_url($file_url, $request_timeout, $allowed_extensions
$fd = fopen($tmp_file, 'w');
$dl_err = download_file_into($fd, $request_timeout, $fd);
fclose($fd);
if ($dl_err !== null) {
throw new Exception($error_array['nomove'] . '<br/>Curl says: ' . $dl_err);
try {
$success = $http->requestGetInto($url_without_params, null, $fd, $request_timeout);
if (!$success) {
return false;
}
} finally {
fclose($fd);
}
return array(
@ -170,6 +149,7 @@ function ocr_image(array $config, string $img_path): string {
*/
$dropped_post = false;
$context = new AppContext($config);
// Is it a post coming from NNTP? Let's extract it and pretend it's a normal post.
if (isset($_GET['Newsgroups']) && $config['nntpchan']['enabled']) {
@ -731,7 +711,21 @@ if (isset($_POST['delete'])) {
}
try {
$_FILES['file'] = download_file_from_url($_POST['file_url'], $config['upload_by_url_timeout'], $allowed_extensions, $config['tmp'], $config['error']);
$ret = download_file_from_url(
$context->getHttpDriver(),
$_POST['file_url'],
$config['upload_by_url_timeout'],
$allowed_extensions,
$config['tmp'],
$config['error']
);
if ($ret === false) {
error(sprintf3($config['error']['filesize'], array(
'filesz' => 'more than that',
'maxsz' => number_format($config['max_filesize'])
)));
}
$_FILES['file'] = $ret;
} catch (Exception $e) {
error($e->getMessage());
}