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REDCORE-605 Add support for multipart/form-data to API #925

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REDCORE-605 Add support for multipart/form-data to API #925

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44781aa
Add support for multipart/form-data to API
Oct 27, 2022
28cff44
Merge branch 'develop' of https://github.com/redCOMPONENT-COM/redCORE…
Oct 27, 2022
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169 changes: 164 additions & 5 deletions extensions/libraries/redcore/api/api.php
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Original file line number Diff line number Diff line change
Expand Up @@ -227,6 +227,151 @@ public function loadExtensionLanguage($option, $path = JPATH_SITE)
return $this;
}

/**
* @return array
* @since __DEPLOY_VERSION__
*/
private static function parsePut(): array
{
$rawData = file_get_contents("php://input");

// Fetch content and determine boundary
$boundary = substr($rawData, 0, strpos($rawData, "\r\n"));

if (empty($boundary))
{
parse_str($rawData, $data);

return $data;
}

// Fetch each part
$parts = array_slice(explode($boundary, $rawData), 1);
$str = [];
$files = [];

foreach ($parts as $part)
{
// If this is the last part, break
if ($part == "--\r\n")
{
break;
}

// Separate content from headers
$part = ltrim($part, "\r\n");
list($rawHeaders, $body) = explode("\r\n\r\n", $part, 2);

// Parse the headers list
$rawHeaders = explode("\r\n", $rawHeaders);
$headers = [];

foreach ($rawHeaders as $header)
{
list($name, $value) = explode(':', $header);
$headers[strtolower($name)] = ltrim($value, ' ');
}

// Parse the Content-Disposition to get the field name, etc.
if (isset($headers['content-disposition']))
{
$filename = null;
preg_match(
'/^(.+); *name="([^"]+)"(; *filename="([^"]+)")?/',
$headers['content-disposition'],
$matches
);
list(, , $name) = $matches;

// Parse File
if (isset($matches[4]))
{
// Get filename
$filename = $matches[4];

// Get tmp name
$tmpName = tempnam(ini_get('upload_tmp_dir'), rand());
$values = [
'error' => 0,
'name' => $filename,
'tmp_name' => $tmpName,
'size' => strlen($body),
'type' => trim($value),
];

$exploded = explode('[', $name);

$first = array_shift($exploded);

if (!empty($exploded))
{
$last = '[' . implode('[', $exploded);
}
else
{
$last = '';
}

foreach ($values as $key => $val)
{
$files[] = $first . '[' . $key . ']' . $last . '=' . $val;
}

// Place in temporary directory
file_put_contents($tmpName, $body);

// Register a shutdown function to cleanup the temporary file
register_shutdown_function(
function () use ($tmpName)
{
unlink($tmpName);
}
);
}

// Parse Field
else
{
$str[] = $name . '=' . substr($body, 0, strlen($body) - 2);
}
}
}

parse_str(implode('&', $str), $data);
parse_str(implode('&', $files), $list);
$_FILES = array_replace($_FILES, $list);

return $data;
}

/**
* @param string $group Group
* @param array|string $values Values
*
* @return array
* @since __DEPLOY_VERSION__
*/
private static function rearrangeFiles(string $group, $values): array
{
if (is_array($values))
{
$return = [];

foreach ($values as $k => $v)
{
$return[$k] = static::rearrangeFiles($group, $v);
}

return $return;
}
else
{
return [
$group => $values,
];
}
}

/**
* Returns posted data in array format
*
Expand Down Expand Up @@ -258,9 +403,9 @@ public static function getPostedData()
{
$inputData = ArrayHelper::fromObject($inputData);
}
elseif (is_string($inputData))
elseif (is_string($inputData) && !empty($inputData))
{
$inputData = trim($inputData);
$inputData = trim($inputData);
$parsedData = null;

// We try to transform it into JSON
Expand All @@ -275,14 +420,14 @@ public static function getPostedData()
// We try to transform it into XML
if (is_null($parsedData) && $xml = @simplexml_load_string($inputData))
{
$json = json_encode((array) $xml);
$json = json_encode((array) $xml);
$parsedData = json_decode($json, true);
}

// We try to transform it into Array
if (is_null($parsedData) && !empty($inputData) && !is_array($inputData))
if (is_null($parsedData))
{
parse_str($inputData, $parsedData);
$parsedData = static::parsePut();
}

$inputData = $parsedData;
Expand All @@ -292,6 +437,20 @@ public static function getPostedData()
$inputData = $input->post->getArray();
}

$files = [];

foreach ($_FILES as $fieldName => $keys)
{
$files[$fieldName] = [];

foreach ($keys as $key => $list)
{
$files[$fieldName] = array_replace_recursive($files[$fieldName], static::rearrangeFiles($key, $list));
}
}

$inputData = array_replace_recursive($inputData, $files);

$filter = JFilterInput::getInstance(array(), array(), 1, 1);

// Filter data with JInput default filter in blacklist mode
Expand Down