725 lines
25 KiB
PHP
725 lines
25 KiB
PHP
<?php
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declare(strict_types=1);
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namespace GuzzleHttp\Psr7;
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use Psr\Http\Message\RequestInterface;
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use Psr\Http\Message\StreamInterface;
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use Psr\Http\Message\UriInterface;
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final class Utils
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{
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/**
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* Converts ASCII uppercase letters in a string to lowercase.
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*
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* Unlike strtolower(), which honors LC_CTYPE before PHP 8.2, the
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* conversion is locale-independent and leaves every non-ASCII byte
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* unchanged, as HTTP protocol elements require.
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*/
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public static function asciiToLower(string $string): string
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{
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return strtr($string, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
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}
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/**
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* Converts ASCII lowercase letters in a string to uppercase.
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*
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* Unlike strtoupper(), which honors LC_CTYPE before PHP 8.2, the
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* conversion is locale-independent and leaves every non-ASCII byte
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* unchanged, as HTTP protocol elements require.
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*/
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public static function asciiToUpper(string $string): string
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{
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return strtr($string, 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ');
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}
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/**
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* Converts the first character of a string to uppercase when it is an
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* ASCII lowercase letter.
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*
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* Unlike ucfirst(), which honors LC_CTYPE before PHP 8.2, the conversion
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* is locale-independent and leaves every non-ASCII byte unchanged, as
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* HTTP protocol elements require.
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*/
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public static function asciiUcFirst(string $string): string
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{
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if ($string === '') {
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return '';
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}
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return self::asciiToUpper($string[0]).substr($string, 1);
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}
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/**
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* Checks whether the haystack contains the needle, comparing ASCII
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* letters case-insensitively and without locale sensitivity.
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*/
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public static function caselessContains(string $haystack, string $needle): bool
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{
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return str_contains(self::asciiToLower($haystack), self::asciiToLower($needle));
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}
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/**
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* Checks whether two strings are equal, comparing ASCII letters
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* case-insensitively and without locale sensitivity.
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*/
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public static function caselessEquals(string $left, string $right): bool
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{
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return self::asciiToLower($left) === self::asciiToLower($right);
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}
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/**
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* Remove the items given by the keys, case insensitively from the data.
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*
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* @param (string|int)[] $keys
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*/
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public static function caselessRemove(array $keys, array $data): array
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{
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$result = [];
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foreach ($keys as &$key) {
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$key = self::asciiToLower((string) $key);
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}
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foreach ($data as $k => $v) {
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if (!in_array(self::asciiToLower((string) $k), $keys)) {
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$result[$k] = $v;
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}
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}
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return $result;
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}
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/**
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* Copy the contents of a stream into another stream until the given number
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* of bytes have been read.
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*
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* The copy stops if the destination write returns 0, for example a
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* BufferStream at its high water mark or a full DroppingStream. For a
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* guaranteed full copy use a normal writable stream such as a file or
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* php://temp stream.
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*
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* @param StreamInterface $source Stream to read from
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* @param StreamInterface $dest Stream to write to
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* @param int $maxLen Maximum number of bytes to read. Pass -1
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* to read the entire stream.
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*
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* @throws \RuntimeException on error.
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*/
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public static function copyToStream(StreamInterface $source, StreamInterface $dest, int $maxLen = -1): void
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{
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$bufferSize = 8192;
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if ($maxLen === -1) {
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while (!$source->eof()) {
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$buf = $source->read($bufferSize);
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if ($buf === '') {
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break;
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}
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if (!self::writeAll($dest, $buf)) {
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break;
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}
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}
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} else {
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$remaining = $maxLen;
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while ($remaining > 0 && !$source->eof()) {
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$buf = $source->read(min($bufferSize, $remaining));
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$len = strlen($buf);
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if (!$len) {
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break;
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}
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$remaining -= $len;
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if (!self::writeAll($dest, $buf)) {
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break;
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}
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}
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}
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}
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/**
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* Writes the full buffer to the destination, retrying short writes.
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*
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* Returns false when the destination write returns 0 or less.
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*/
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private static function writeAll(StreamInterface $dest, string $buf): bool
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{
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$written = 0;
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$len = strlen($buf);
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while ($written < $len) {
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$result = $dest->write(substr($buf, $written));
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if ($result <= 0) {
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return false;
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}
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$written += $result;
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}
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return true;
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}
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/**
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* Copy the contents of a stream into a string until the given number of
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* bytes have been read.
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*
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* @param StreamInterface $stream Stream to read
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* @param int $maxLen Maximum number of bytes to read. Pass -1
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* to read the entire stream.
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*
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* @throws \RuntimeException on error.
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*/
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public static function copyToString(StreamInterface $stream, int $maxLen = -1): string
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{
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$buffer = '';
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if ($maxLen === -1) {
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while (!$stream->eof()) {
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$buf = $stream->read(1048576);
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if ($buf === '') {
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break;
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}
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$buffer .= $buf;
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}
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return $buffer;
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}
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$len = 0;
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while (!$stream->eof() && $len < $maxLen) {
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$buf = $stream->read($maxLen - $len);
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if ($buf === '') {
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break;
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}
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$buffer .= $buf;
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$len = strlen($buffer);
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}
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return $buffer;
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}
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/**
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* Calculate a hash of a stream.
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*
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* This method reads the entire stream to calculate a rolling hash, based
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* on PHP's `hash_init` functions.
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*
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* @param StreamInterface $stream Stream to calculate the hash for
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* @param string $algo Hash algorithm (e.g. md5, crc32, etc)
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* @param bool $rawOutput Whether or not to use raw output
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*
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* @throws \RuntimeException on error.
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*/
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public static function hash(StreamInterface $stream, string $algo, bool $rawOutput = false): string
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{
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$pos = $stream->tell();
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if ($pos > 0) {
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$stream->rewind();
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}
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$ctx = hash_init($algo);
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while (!$stream->eof()) {
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hash_update($ctx, $stream->read(1048576));
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}
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$out = hash_final($ctx, $rawOutput);
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$stream->seek($pos);
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return $out;
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}
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/**
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* Clone and modify a request with the given changes.
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*
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* This method is useful for reducing the number of clones needed to mutate
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* a message.
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*
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* The changes can be one of:
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* - method: (string) Changes the HTTP method.
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* - set_headers: (array) Sets the given headers. Values must be strings
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* or non-empty arrays of strings.
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* - remove_headers: (array) Remove the given headers. Values may be
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* strings or integers.
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* - body: (mixed) Sets the given body. Present non-null values are converted
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* with self::streamFor(), including scalar values, resources, streams,
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* iterators, callable arrays, closures, invokable objects, and objects
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* with __toString(). String inputs remain literal bodies.
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* - uri: (UriInterface) Set the URI.
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* - query: (string) Set the query string value of the URI.
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* - version: (string) Set the protocol version.
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*
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* @param RequestInterface $request Request to clone and modify.
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* @param array $changes Changes to apply.
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*/
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public static function modifyRequest(RequestInterface $request, array $changes): RequestInterface
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{
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if (!$changes) {
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return $request;
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}
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self::warnOnInvalidModifyRequestChanges($changes);
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$headers = $request->getHeaders();
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if (!isset($changes['uri'])) {
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$uri = $request->getUri();
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} else {
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// Remove the host header if one is on the URI
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$host = $changes['uri']->getHost();
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if ($host !== '') {
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if (isset($changes['set_headers']) && is_array($changes['set_headers'])) {
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foreach (array_keys($changes['set_headers']) as $header) {
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if (self::asciiToLower((string) $header) === 'host') {
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throw new \InvalidArgumentException(
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'Cannot modify request with both a URI containing a host and an explicit Host header.'
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);
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}
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}
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}
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$changes['set_headers']['Host'] = $host;
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if ($port = $changes['uri']->getPort()) {
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$standardPorts = ['http' => 80, 'https' => 443];
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$scheme = $changes['uri']->getScheme();
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if (isset($standardPorts[$scheme]) && $port != $standardPorts[$scheme]) {
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$changes['set_headers']['Host'] .= ':'.$port;
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}
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}
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}
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$uri = $changes['uri'];
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}
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if (!empty($changes['remove_headers'])) {
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$headers = self::caselessRemove($changes['remove_headers'], $headers);
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}
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if (!empty($changes['set_headers'])) {
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$headers = self::caselessRemove(array_keys($changes['set_headers']), $headers);
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$headers = $changes['set_headers'] + $headers;
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}
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if (isset($changes['query'])) {
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$uri = $uri->withQuery($changes['query']);
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}
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$hasHost = false;
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foreach (array_keys($headers) as $header) {
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if (self::asciiToLower((string) $header) === 'host') {
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$hasHost = true;
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break;
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}
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}
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// Match Request::__construct() by adding a Host header when one is not provided.
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if (!$hasHost && $uri->getHost() !== '') {
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$host = $uri->getHost();
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if (($port = $uri->getPort()) !== null) {
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$host .= ':'.$port;
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}
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$headers = ['Host' => [$host]] + $headers;
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}
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$new = $request;
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if (isset($changes['method'])) {
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$new = $new->withMethod($changes['method']);
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}
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if (isset($changes['uri']) || isset($changes['query'])) {
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$new = $new->withUri($uri, true);
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}
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if ($headers !== $new->getHeaders()) {
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foreach (array_keys($new->getHeaders()) as $header) {
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/** @var RequestInterface */
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$new = $new->withoutHeader((string) $header);
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}
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$addedHeaders = [];
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foreach ($headers as $header => $value) {
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$header = (string) $header;
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$normalized = self::asciiToLower($header);
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if (isset($addedHeaders[$normalized])) {
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/** @var RequestInterface */
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$new = $new->withAddedHeader($addedHeaders[$normalized], $value);
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} else {
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/** @var RequestInterface */
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$new = $new->withHeader($header, $value);
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$addedHeaders[$normalized] = $header;
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}
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}
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}
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if (isset($changes['body'])) {
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/** @var RequestInterface */
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$new = $new->withBody(self::streamFor($changes['body']));
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}
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if (isset($changes['version'])) {
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/** @var RequestInterface */
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$new = $new->withProtocolVersion($changes['version']);
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}
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return $new;
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}
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/**
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* @param array<array-key, mixed> $changes
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*/
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private static function warnOnInvalidModifyRequestChanges(array $changes): void
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{
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foreach (['method', 'query', 'version'] as $key) {
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if (\array_key_exists($key, $changes) && !\is_string($changes[$key])) {
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self::warnOnInvalidModifyRequestChange($key, 'string', $changes[$key]);
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}
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}
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if (\array_key_exists('uri', $changes) && !$changes['uri'] instanceof UriInterface) {
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self::warnOnInvalidModifyRequestChange('uri', 'UriInterface', $changes['uri']);
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}
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if (\array_key_exists('body', $changes) && $changes['body'] === null) {
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self::warnOnInvalidModifyRequestChange('body', 'resource|string|int|float|bool|StreamInterface|callable|\Iterator|\Stringable', $changes['body']);
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}
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if (\array_key_exists('set_headers', $changes)) {
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if (!\is_array($changes['set_headers'])) {
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self::warnOnInvalidModifyRequestChange('set_headers', 'array<array-key, string|non-empty-array<array-key, string>>', $changes['set_headers']);
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} else {
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foreach ($changes['set_headers'] as $header => $value) {
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$headerPath = \sprintf('set_headers.%s', (string) $header);
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if (\is_array($value)) {
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if ($value === []) {
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self::warnOnInvalidModifyRequestChange($headerPath, 'string|non-empty-array<array-key, string>', $value);
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break;
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}
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foreach ($value as $index => $item) {
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if (!\is_string($item)) {
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self::warnOnInvalidModifyRequestChange(\sprintf('%s.%s', $headerPath, (string) $index), 'string', $item);
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break 2;
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}
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}
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} elseif (!\is_string($value)) {
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self::warnOnInvalidModifyRequestChange($headerPath, 'string|non-empty-array<array-key, string>', $value);
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break;
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}
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}
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}
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}
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if (!\array_key_exists('remove_headers', $changes)) {
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return;
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}
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if (!\is_array($changes['remove_headers'])) {
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self::warnOnInvalidModifyRequestChange('remove_headers', 'array<array-key, string|int>', $changes['remove_headers']);
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return;
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}
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foreach ($changes['remove_headers'] as $index => $header) {
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if (!\is_string($header) && !\is_int($header)) {
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self::warnOnInvalidModifyRequestChange(\sprintf('remove_headers.%s', (string) $index), 'string|int', $header);
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return;
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}
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}
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}
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/**
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* @param mixed $value
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*/
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private static function warnOnInvalidModifyRequestChange(string $key, string $expected, $value): void
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{
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\trigger_deprecation(
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'guzzlehttp/psr7',
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'2.11',
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'Passing %s to Utils::modifyRequest() change "%s" is deprecated; guzzlehttp/psr7 3.0 requires %s.',
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\get_debug_type($value),
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$key,
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$expected
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);
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}
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/**
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* Read a line from the stream up to the maximum allowed buffer length.
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*
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* @param StreamInterface $stream Stream to read from
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* @param int|null $maxLength Maximum buffer length
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*/
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public static function readLine(StreamInterface $stream, ?int $maxLength = null): string
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{
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$buffer = '';
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$size = 0;
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while (!$stream->eof()) {
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if ('' === ($byte = $stream->read(1))) {
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return $buffer;
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}
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$buffer .= $byte;
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// Break when a new line is found or the max length - 1 is reached
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if ($byte === "\n" || ++$size === $maxLength - 1) {
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break;
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}
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}
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return $buffer;
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}
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/**
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* Redact the password in the user info part of a URI.
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*/
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public static function redactUserInfo(UriInterface $uri): UriInterface
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{
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$userInfo = $uri->getUserInfo();
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if (false !== ($pos = \strpos($userInfo, ':'))) {
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return $uri->withUserInfo(\substr($userInfo, 0, $pos), '***');
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}
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return $uri;
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}
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/**
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* Create a new stream based on the input type.
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*
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* Options is an associative array that can contain the following keys:
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* - metadata: Array of custom metadata.
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* - size: Size of the stream.
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*
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* This method accepts the following `$resource` types:
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* - `Psr\Http\Message\StreamInterface`: Returns the value as-is.
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* - `string`: Creates a stream object that uses the given string as the contents.
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* - `resource`: Creates a stream object that wraps the given PHP stream resource.
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* - `Iterator`: If the provided value implements `Iterator`, then a read-only
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* stream object will be created that wraps the given iterable. Each time the
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* stream is read from, data from the iterator will fill a buffer and will be
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* continuously called until the buffer is equal to the requested read size.
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* Subsequent read calls will first read from the buffer and then call `next`
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* on the underlying iterator until it is exhausted.
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* - `object` with `__toString()`: If the object has the `__toString()` method,
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* the object will be cast to a string and then a stream will be returned that
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* uses the string value.
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* - `NULL`: When `null` is passed, an empty stream object is returned.
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* - `callable`: When a callable array, closure, or invokable object is passed
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* and no earlier resource or object rule applies, a read-only stream object
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* will be created that invokes the given callable. The callable is invoked
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* with the suggested number of bytes to read. The callable can return fewer
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* or more bytes than requested, but MUST return `false` or `null` when there
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* is no more data to return. Any additional bytes will be buffered and used
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* in subsequent reads. String inputs are always treated as string bodies,
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* even when they name callable functions.
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*
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* Passing a non-string scalar (`int`, `float`, or `bool`) is deprecated; cast
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* it to a string instead. guzzlehttp/psr7 3.0 will reject non-string scalars.
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*
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* @param resource|string|int|float|bool|StreamInterface|callable|\Iterator|null $resource Entity body data
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* @param array{size?: int, metadata?: array} $options Additional options
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*
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* @throws \InvalidArgumentException if the $resource arg is not valid.
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*/
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public static function streamFor($resource = '', array $options = []): StreamInterface
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{
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if (is_scalar($resource)) {
|
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if (!is_string($resource)) {
|
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\trigger_deprecation(
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'guzzlehttp/psr7',
|
|
'2.12',
|
|
'Passing %s to Utils::streamFor() is deprecated; cast it to a string. guzzlehttp/psr7 3.0 will only accept string, resource, StreamInterface, Stringable, Iterator, callable, or null.',
|
|
\gettype($resource)
|
|
);
|
|
|
|
if (is_float($resource) && !is_finite($resource)) {
|
|
// Normalized only to avoid PHP 8.5's (string) NAN warning
|
|
// while deprecated; 3.0 rejects non-finite floats with every
|
|
// other non-string scalar.
|
|
$resource = is_nan($resource) ? 'NAN' : ($resource > 0 ? 'INF' : '-INF');
|
|
}
|
|
}
|
|
|
|
$stream = self::tryFopen('php://temp', 'r+');
|
|
if ($resource !== '') {
|
|
fwrite($stream, (string) $resource);
|
|
fseek($stream, 0);
|
|
}
|
|
|
|
return new Stream($stream, $options);
|
|
}
|
|
|
|
switch (gettype($resource)) {
|
|
case 'resource':
|
|
/*
|
|
* The 'php://input' is a special stream with quirks and inconsistencies.
|
|
* We avoid using that stream by reading it into php://temp
|
|
*/
|
|
|
|
/** @var resource $resource */
|
|
if ((\stream_get_meta_data($resource)['uri'] ?? '') === 'php://input') {
|
|
$stream = self::tryFopen('php://temp', 'w+');
|
|
stream_copy_to_stream($resource, $stream);
|
|
fseek($stream, 0);
|
|
$resource = $stream;
|
|
}
|
|
|
|
return new Stream($resource, $options);
|
|
case 'object':
|
|
/** @var object $resource */
|
|
if ($resource instanceof StreamInterface) {
|
|
return $resource;
|
|
} elseif ($resource instanceof \Iterator) {
|
|
return new PumpStream(function () use ($resource) {
|
|
if (!$resource->valid()) {
|
|
return false;
|
|
}
|
|
$result = $resource->current();
|
|
$resource->next();
|
|
|
|
return $result;
|
|
}, $options);
|
|
} elseif (method_exists($resource, '__toString')) {
|
|
return self::streamFor((string) $resource, $options);
|
|
}
|
|
break;
|
|
case 'NULL':
|
|
return new Stream(self::tryFopen('php://temp', 'r+'), $options);
|
|
}
|
|
|
|
if (is_callable($resource)) {
|
|
return new PumpStream($resource, $options);
|
|
}
|
|
|
|
throw new \InvalidArgumentException('Invalid resource type: '.gettype($resource));
|
|
}
|
|
|
|
/**
|
|
* Safely opens a PHP stream resource using a filename.
|
|
*
|
|
* When fopen fails, PHP normally raises a warning. This function adds an
|
|
* error handler that checks for errors and throws an exception instead.
|
|
*
|
|
* @param string $filename File to open
|
|
* @param string $mode Mode used to open the file
|
|
*
|
|
* @return resource
|
|
*
|
|
* @throws \RuntimeException if the file cannot be opened
|
|
*/
|
|
public static function tryFopen(string $filename, string $mode)
|
|
{
|
|
$ex = null;
|
|
set_error_handler(static function (int $errno, string $errstr) use ($filename, $mode, &$ex): bool {
|
|
$ex = new \RuntimeException(sprintf(
|
|
'Unable to open "%s" using mode "%s": %s',
|
|
$filename,
|
|
$mode,
|
|
$errstr
|
|
));
|
|
|
|
return true;
|
|
});
|
|
|
|
try {
|
|
/** @var resource $handle */
|
|
$handle = fopen($filename, $mode);
|
|
} catch (\Throwable $e) {
|
|
$ex = new \RuntimeException(sprintf(
|
|
'Unable to open "%s" using mode "%s": %s',
|
|
$filename,
|
|
$mode,
|
|
$e->getMessage()
|
|
), 0, $e);
|
|
}
|
|
|
|
restore_error_handler();
|
|
|
|
if ($ex) {
|
|
/** @var \RuntimeException $ex */
|
|
throw $ex;
|
|
}
|
|
|
|
return $handle;
|
|
}
|
|
|
|
/**
|
|
* Safely gets the contents of a given stream.
|
|
*
|
|
* When stream_get_contents fails, PHP normally raises a warning. This
|
|
* function adds an error handler that checks for errors and throws an
|
|
* exception instead.
|
|
*
|
|
* @param resource $stream
|
|
*
|
|
* @throws \RuntimeException if the stream cannot be read
|
|
*/
|
|
public static function tryGetContents($stream): string
|
|
{
|
|
$ex = null;
|
|
set_error_handler(static function (int $errno, string $errstr) use (&$ex): bool {
|
|
$ex = new \RuntimeException(sprintf(
|
|
'Unable to read stream contents: %s',
|
|
$errstr
|
|
));
|
|
|
|
return true;
|
|
});
|
|
|
|
try {
|
|
/** @var string|false $contents */
|
|
$contents = stream_get_contents($stream);
|
|
|
|
if ($contents === false) {
|
|
$ex = new \RuntimeException('Unable to read stream contents');
|
|
}
|
|
} catch (\Throwable $e) {
|
|
$ex = new \RuntimeException(sprintf(
|
|
'Unable to read stream contents: %s',
|
|
$e->getMessage()
|
|
), 0, $e);
|
|
}
|
|
|
|
restore_error_handler();
|
|
|
|
if ($ex) {
|
|
/** @var \RuntimeException $ex */
|
|
throw $ex;
|
|
}
|
|
|
|
return $contents;
|
|
}
|
|
|
|
/**
|
|
* Returns a UriInterface for the given value.
|
|
*
|
|
* This function accepts a string or UriInterface and returns a
|
|
* UriInterface for the given value. If the value is already a
|
|
* UriInterface, it is returned as-is.
|
|
*
|
|
* @param string|UriInterface $uri
|
|
*
|
|
* @throws \InvalidArgumentException
|
|
*/
|
|
public static function uriFor($uri): UriInterface
|
|
{
|
|
if ($uri instanceof UriInterface) {
|
|
return $uri;
|
|
}
|
|
|
|
if (is_string($uri)) {
|
|
return new Uri($uri);
|
|
}
|
|
|
|
throw new \InvalidArgumentException('URI must be a string or UriInterface');
|
|
}
|
|
}
|