FM / Header

/home/techb158/ileadtechnology.com/vendor/symfony/mime/Header/

/home/techb158/ileadtechnology.com/vendor/symfony/mime/Header

Name	Size	Mode	Actions
AbstractHeader.php	10557	0644	edit dl rm
DateHeader.php	1504	0644	edit dl rm
HeaderInterface.php	1434	0644	edit dl rm
Headers.php	8661	0644	edit dl rm
IdentificationHeader.php	2364	0644	edit dl rm
MailboxHeader.php	1942	0644	edit dl rm
MailboxListHeader.php	3139	0644	edit dl rm
ParameterizedHeader.php	6344	0644	edit dl rm
PathHeader.php	1240	0644	edit dl rm
UnstructuredHeader.php	1284	0644	edit dl rm

Edit: /home/techb158/ileadtechnology.com/vendor/symfony/mime/Header/AbstractHeader.php (10557B)

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mime\Header;

use Symfony\Component\Mime\Encoder\QpMimeHeaderEncoder;

/**
 * An abstract base MIME Header.
 *
 * @author Chris Corbyn
 */
abstract class AbstractHeader implements HeaderInterface
{
    public const PHRASE_PATTERN = '(?:(?:(?:(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))*(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))|(?:(?:[ \t]*(?:\r\n))?[ \t])))?[a-zA-Z0-9!#\$%&\'\*\+\-\/=\?\^_`\{\}\|~]+(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))*(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))|(?:(?:[ \t]*(?:\r\n))?[ \t])))?)|(?:(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))*(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))|(?:(?:[ \t]*(?:\r\n))?[ \t])))?"((?:(?:[ \t]*(?:\r\n))?[ \t])?(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21\x23-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])))*(?:(?:[ \t]*(?:\r\n))?[ \t])?"(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))*(?:(?:(?:(?:[ \t]*(?:\r\n))?[ \t])?($(?:(?:(?:[ \t]*(?:\r\n))?[ \t])|(?:(?:[\x01-\x08\x0B\x0C\x0E-\x19\x7F]|[\x21-\x27\x2A-\x5B\x5D-\x7E])|(?:\\[\x00-\x08\x0B\x0C\x0E-\x7F])|(?1)))*(?:(?:[ \t]*(?:\r\n))?[ \t])?$))|(?:(?:[ \t]*(?:\r\n))?[ \t])))?))+?)';

private static $encoder;

private $name;
    private $lineLength = 76;
    private $lang;
    private $charset = 'utf-8';

public function __construct(string $name)
    {
        $this->name = $name;
    }

public function setCharset(string $charset)
    {
        $this->charset = $charset;
    }

public function getCharset(): ?string
    {
        return $this->charset;
    }

/**
     * Set the language used in this Header.
     *
     * For example, for US English, 'en-us'.
     */
    public function setLanguage(string $lang)
    {
        $this->lang = $lang;
    }

public function getLanguage(): ?string
    {
        return $this->lang;
    }

public function getName(): string
    {
        return $this->name;
    }

public function setMaxLineLength(int $lineLength)
    {
        $this->lineLength = $lineLength;
    }

public function getMaxLineLength(): int
    {
        return $this->lineLength;
    }

public function toString(): string
    {
        return $this->tokensToString($this->toTokens());
    }

/**
     * Produces a compliant, formatted RFC 2822 'phrase' based on the string given.
     *
     * @param string $string  as displayed
     * @param bool   $shorten the first line to make remove for header name
     */
    protected function createPhrase(HeaderInterface $header, string $string, string $charset, bool $shorten = false): string
    {
        // Treat token as exactly what was given
        $phraseStr = $string;

// If it's not valid
        if (!preg_match('/^'.self::PHRASE_PATTERN.'$/D', $phraseStr)) {
            // .. but it is just ascii text, try escaping some characters
            // and make it a quoted-string
            if (preg_match('/^[\x00-\x08\x0B\x0C\x0E-\x7F]*$/D', $phraseStr)) {
                foreach (['\\', '"'] as $char) {
                    $phraseStr = str_replace($char, '\\'.$char, $phraseStr);
                }
                $phraseStr = '"'.$phraseStr.'"';
            } else {
                // ... otherwise it needs encoding
                // Determine space remaining on line if first line
                if ($shorten) {
                    $usedLength = \strlen($header->getName().': ');
                } else {
                    $usedLength = 0;
                }
                $phraseStr = $this->encodeWords($header, $string, $usedLength);
            }
        } elseif (str_contains($phraseStr, '(')) {
            foreach (['\\', '"'] as $char) {
                $phraseStr = str_replace($char, '\\'.$char, $phraseStr);
            }
            $phraseStr = '"'.$phraseStr.'"';
        }

return $phraseStr;
    }

/**
     * Encode needed word tokens within a string of input.
     */
    protected function encodeWords(HeaderInterface $header, string $input, int $usedLength = -1): string
    {
        $value = '';
        $tokens = $this->getEncodableWordTokens($input);
        foreach ($tokens as $token) {
            // See RFC 2822, Sect 2.2 (really 2.2 ??)
            if ($this->tokenNeedsEncoding($token)) {
                // Don't encode starting WSP
                $firstChar = substr($token, 0, 1);
                switch ($firstChar) {
                    case ' ':
                    case "\t":
                        $value .= $firstChar;
                        $token = substr($token, 1);
                }

if (-1 == $usedLength) {
                    $usedLength = \strlen($header->getName().': ') + \strlen($value);
                }
                $value .= $this->getTokenAsEncodedWord($token, $usedLength);
            } else {
                $value .= $token;
            }
        }

return $value;
    }

protected function tokenNeedsEncoding(string $token): bool
    {
        return (bool) preg_match('~[\x00-\x08\x10-\x19\x7F-\xFF\r\n]~', $token);
    }

/**
     * Splits a string into tokens in blocks of words which can be encoded quickly.
     *
     * @return string[]
     */
    protected function getEncodableWordTokens(string $string): array
    {
        $tokens = [];
        $encodedToken = '';
        // Split at all whitespace boundaries
        foreach (preg_split('~(?=[\t ])~', $string) as $token) {
            if ($this->tokenNeedsEncoding($token)) {
                $encodedToken .= $token;
            } else {
                if ('' !== $encodedToken) {
                    $tokens[] = $encodedToken;
                    $encodedToken = '';
                }
                $tokens[] = $token;
            }
        }
        if ('' !== $encodedToken) {
            $tokens[] = $encodedToken;
        }

return $tokens;
    }

/**
     * Get a token as an encoded word for safe insertion into headers.
     */
    protected function getTokenAsEncodedWord(string $token, int $firstLineOffset = 0): string
    {
        if (null === self::$encoder) {
            self::$encoder = new QpMimeHeaderEncoder();
        }

// Adjust $firstLineOffset to account for space needed for syntax
        $charsetDecl = $this->charset;
        if (null !== $this->lang) {
            $charsetDecl .= '*'.$this->lang;
        }
        $encodingWrapperLength = \strlen('=?'.$charsetDecl.'?'.self::$encoder->getName().'??=');

if ($firstLineOffset >= 75) {
            // Does this logic need to be here?
            $firstLineOffset = 0;
        }

$encodedTextLines = explode("\r\n",
            self::$encoder->encodeString($token, $this->charset, $firstLineOffset, 75 - $encodingWrapperLength)
        );

if ('iso-2022-jp' !== strtolower($this->charset)) {
            // special encoding for iso-2022-jp using mb_encode_mimeheader
            foreach ($encodedTextLines as $lineNum => $line) {
                $encodedTextLines[$lineNum] = '=?'.$charsetDecl.'?'.self::$encoder->getName().'?'.$line.'?=';
            }
        }

return implode("\r\n ", $encodedTextLines);
    }

/**
     * Generates tokens from the given string which include CRLF as individual tokens.
     *
     * @return string[]
     */
    protected function generateTokenLines(string $token): array
    {
        return preg_split('~(\r\n)~', $token, -1, \PREG_SPLIT_DELIM_CAPTURE);
    }

/**
     * Generate a list of all tokens in the final header.
     */
    protected function toTokens(string $string = null): array
    {
        if (null === $string) {
            $string = $this->getBodyAsString();
        }

$tokens = [];
        // Generate atoms; split at all invisible boundaries followed by WSP
        foreach (preg_split('~(?=[ \t])~', $string) as $token) {
            $newTokens = $this->generateTokenLines($token);
            foreach ($newTokens as $newToken) {
                $tokens[] = $newToken;
            }
        }

return $tokens;
    }

/**
     * Takes an array of tokens which appear in the header and turns them into
     * an RFC 2822 compliant string, adding FWSP where needed.
     *
     * @param string[] $tokens
     */
    private function tokensToString(array $tokens): string
    {
        $lineCount = 0;
        $headerLines = [];
        $headerLines[] = $this->name.': ';
        $currentLine = &$headerLines[$lineCount++];

// Build all tokens back into compliant header
        foreach ($tokens as $i => $token) {
            // Line longer than specified maximum or token was just a new line
            if (("\r\n" === $token) ||
                ($i > 0 && \strlen($currentLine.$token) > $this->lineLength)
                && '' !== $currentLine) {
                $headerLines[] = '';
                $currentLine = &$headerLines[$lineCount++];
            }

// Append token to the line
            if ("\r\n" !== $token) {
                $currentLine .= $token;
            }
        }

// Implode with FWS (RFC 2822, 2.2.3)
        return implode("\r\n", $headerLines);
    }
}

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