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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Mime\Part\Header; |
| 16 | |
| 17 | /** |
| 18 | * RFC 5322 address-list - a comma-separated collection of Address objects. |
| 19 | * No group support - a group-shaped segment is treated as one opaque |
| 20 | * Address rather than parsed structurally. |
| 21 | * |
| 22 | * @category Pop |
| 23 | * @package Pop\Mime |
| 24 | * @author Nick Sagona, III <dev@noladev.com> |
| 25 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 26 | * @license https://www.popphp.org/license New BSD License |
| 27 | * @version 3.0.0 |
| 28 | */ |
| 29 | final class AddressList |
| 30 | { |
| 31 | |
| 32 | /** |
| 33 | * @var Address[] |
| 34 | */ |
| 35 | protected array $addresses = []; |
| 36 | |
| 37 | /** |
| 38 | * @param Address[] $addresses |
| 39 | */ |
| 40 | public function __construct(array $addresses = []) |
| 41 | { |
| 42 | foreach ($addresses as $address) { |
| 43 | $this->addAddress($address); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * Parse a comma-separated address list. Splits only on top-level |
| 49 | * commas - a comma inside a quoted display name is part of a |
| 50 | * QUOTED_STRING token, never a top-level delimiter, so it doesn't |
| 51 | * split the list. Never throws. |
| 52 | * |
| 53 | * @param string $text |
| 54 | * @return AddressList |
| 55 | */ |
| 56 | public static function parse(string $text): AddressList |
| 57 | { |
| 58 | $tokens = (new Lexer($text))->tokenize(); |
| 59 | $list = new self(); |
| 60 | |
| 61 | if (self::isGroupShaped($tokens)) { |
| 62 | $trimmed = trim($text); |
| 63 | if ($trimmed !== '') { |
| 64 | $list->addAddress(new Address($trimmed)); |
| 65 | } |
| 66 | return $list; |
| 67 | } |
| 68 | |
| 69 | $segments = [[]]; |
| 70 | foreach ($tokens as $token) { |
| 71 | if (($token->type === Lexer::DELIMITER) && ($token->value === ',')) { |
| 72 | $segments[] = []; |
| 73 | } else { |
| 74 | $segments[count($segments) - 1][] = $token; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | foreach ($segments as $segmentTokens) { |
| 79 | $segmentText = trim(self::spliceTokens($text, $segmentTokens)); |
| 80 | if ($segmentText !== '') { |
| 81 | $list->addAddress(Address::parse($segmentText)); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | return $list; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * A group ("display-name: mailbox-list;") is out of scope for this |
| 90 | * class - detected by a top-level ":" appearing before any top-level |
| 91 | * "<", AND a top-level ";" appearing somewhere after it (the group's |
| 92 | * closing terminator), and treated as one opaque, unparsed Address |
| 93 | * rather than being split on its internal commas. Both conditions are |
| 94 | * required - a bare unquoted ":" alone (e.g. a display name like |
| 95 | * "IT: Support" or "Ratio 3:1") is common in real-world addresses and |
| 96 | * must not be misdetected as a group. |
| 97 | * |
| 98 | * @param Token[] $tokens |
| 99 | * @return bool |
| 100 | */ |
| 101 | protected static function isGroupShaped(array $tokens): bool |
| 102 | { |
| 103 | $hasColonBeforeAngle = false; |
| 104 | foreach ($tokens as $token) { |
| 105 | if (($token->type === Lexer::DELIMITER) && ($token->value === ':')) { |
| 106 | $hasColonBeforeAngle = true; |
| 107 | break; |
| 108 | } |
| 109 | if (($token->type === Lexer::DELIMITER) && ($token->value === '<')) { |
| 110 | break; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | if (!$hasColonBeforeAngle) { |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | foreach ($tokens as $token) { |
| 119 | if (($token->type === Lexer::DELIMITER) && ($token->value === ';')) { |
| 120 | return true; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | return false; |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * @param string $source |
| 129 | * @param Token[] $tokens |
| 130 | * @return string |
| 131 | */ |
| 132 | protected static function spliceTokens(string $source, array $tokens): string |
| 133 | { |
| 134 | if (empty($tokens)) { |
| 135 | return ''; |
| 136 | } |
| 137 | $first = $tokens[array_key_first($tokens)]; |
| 138 | $last = $tokens[array_key_last($tokens)]; |
| 139 | return substr($source, $first->start, $last->end - $first->start); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * @param Address|string $address |
| 144 | * @param ?string $name |
| 145 | * @return AddressList |
| 146 | */ |
| 147 | public function addAddress(Address|string $address, ?string $name = null): AddressList |
| 148 | { |
| 149 | $this->addresses[] = ($address instanceof Address) ? $address : new Address($address, $name); |
| 150 | return $this; |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * @return Address[] |
| 155 | */ |
| 156 | public function getAddresses(): array |
| 157 | { |
| 158 | return $this->addresses; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * @return int |
| 163 | */ |
| 164 | public function count(): int |
| 165 | { |
| 166 | return count($this->addresses); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * @return string |
| 171 | */ |
| 172 | public function render(): string |
| 173 | { |
| 174 | return implode(', ', array_map(fn($address) => $address->render(), $this->addresses)); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * @return string |
| 179 | */ |
| 180 | public function __toString(): string |
| 181 | { |
| 182 | return $this->render(); |
| 183 | } |
| 184 | |
| 185 | } |