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الملفات الموجودة في هذا الـ Path:
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..
AbstractSerializer.php
CallbackStream.php
ConfigProvider.php
Exception
HeaderSecurity.php
MessageTrait.php
Module.php
RelativeStream.php
Request
Request.php
RequestFactory.php
RequestTrait.php
Response
Response.php
ResponseFactory.php
ServerRequest.php
ServerRequestFactory.php
ServerRequestFilter
Stream.php
StreamFactory.php
UploadedFile.php
UploadedFileFactory.php
Uri.php
UriFactory.php
functions
مشاهدة ملف: AbstractSerializer.php
<?php
declare(strict_types=1);
namespace Laminas\Diactoros;
use Psr\Http\Message\StreamInterface;
use function array_pop;
use function implode;
use function preg_match;
use function sprintf;
use function str_replace;
use function trim;
use function ucwords;
/**
* Provides base functionality for request and response de/serialization
* strategies, including functionality for retrieving a line at a time from
* the message, splitting headers from the body, and serializing headers.
*/
abstract class AbstractSerializer
{
public const CR = "\r";
public const EOL = "\r\n";
public const LF = "\n";
/**
* Retrieve a single line from the stream.
*
* Retrieves a line from the stream; a line is defined as a sequence of
* characters ending in a CRLF sequence.
*
* @throws Exception\DeserializationException If the sequence contains a CR
* or LF in isolation, or ends in a CR.
*/
protected static function getLine(StreamInterface $stream): string
{
$line = '';
$crFound = false;
while (! $stream->eof()) {
$char = $stream->read(1);
if ($crFound && $char === self::LF) {
$crFound = false;
break;
}
// CR NOT followed by LF
if ($crFound && $char !== self::LF) {
throw Exception\DeserializationException::forUnexpectedCarriageReturn();
}
// LF in isolation
if (! $crFound && $char === self::LF) {
throw Exception\DeserializationException::forUnexpectedLineFeed();
}
// CR found; do not append
if ($char === self::CR) {
$crFound = true;
continue;
}
// Any other character: append
$line .= $char;
}
// CR found at end of stream
if ($crFound) {
throw Exception\DeserializationException::forUnexpectedEndOfHeaders();
}
return $line;
}
/**
* Split the stream into headers and body content.
*
* Returns an array containing two elements
*
* - The first is an array of headers
* - The second is a StreamInterface containing the body content
*
* @throws Exception\DeserializationException For invalid headers.
*/
protected static function splitStream(StreamInterface $stream): array
{
$headers = [];
$currentHeader = false;
while ($line = self::getLine($stream)) {
if (preg_match(';^(?P<name>[!#$%&\'*+.^_`\|~0-9a-zA-Z-]+):(?P<value>.*)$;', $line, $matches)) {
$currentHeader = $matches['name'];
if (! isset($headers[$currentHeader])) {
$headers[$currentHeader] = [];
}
$headers[$currentHeader][] = trim($matches['value'], "\t ");
continue;
}
if (! $currentHeader) {
throw Exception\DeserializationException::forInvalidHeader();
}
if (! preg_match('#^[ \t]#', $line)) {
throw Exception\DeserializationException::forInvalidHeaderContinuation();
}
// Append continuation to last header value found
$value = array_pop($headers[$currentHeader]);
$headers[$currentHeader][] = $value . ' ' . trim($line, "\t ");
}
// use RelativeStream to avoid copying initial stream into memory
return [$headers, new RelativeStream($stream, $stream->tell())];
}
/**
* Serialize headers to string values.
*
* @psalm-param array<string, string[]> $headers
*/
protected static function serializeHeaders(array $headers): string
{
$lines = [];
foreach ($headers as $header => $values) {
$normalized = self::filterHeader($header);
foreach ($values as $value) {
$lines[] = sprintf('%s: %s', $normalized, $value);
}
}
return implode("\r\n", $lines);
}
/**
* Filter a header name to wordcase
*
* @param string $header
*/
protected static function filterHeader($header): string
{
$filtered = str_replace('-', ' ', $header);
$filtered = ucwords($filtered);
return str_replace(' ', '-', $filtered);
}
}