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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Engelsystem\Http; |
| 6 | |
| 7 | use InvalidArgumentException; |
| 8 | use Nyholm\Psr7\Stream; |
| 9 | use Psr\Http\Message\StreamInterface; |
| 10 | |
| 11 | /** |
| 12 | * @implements MessageInterface |
| 13 | * @extends SymfonyResponse |
| 14 | */ |
| 15 | trait MessageTrait |
| 16 | { |
| 17 | /** |
| 18 | * Retrieves the HTTP protocol version as a string. |
| 19 | * |
| 20 | * The string MUST contain only the HTTP version number (e.g., "1.1", "1.0"). |
| 21 | * |
| 22 | * @return string HTTP protocol version. |
| 23 | */ |
| 24 | public function getProtocolVersion(): string |
| 25 | { |
| 26 | return parent::getProtocolVersion(); |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Return an instance with the specified HTTP protocol version. |
| 31 | * |
| 32 | * The version string MUST contain only the HTTP version number (e.g., |
| 33 | * "1.1", "1.0"). |
| 34 | * |
| 35 | * This method MUST be implemented in such a way as to retain the |
| 36 | * immutability of the message, and MUST return an instance that has the |
| 37 | * new protocol version. |
| 38 | * |
| 39 | * @param string $version HTTP protocol version |
| 40 | * @return static |
| 41 | */ |
| 42 | public function withProtocolVersion(mixed $version): static |
| 43 | { |
| 44 | $new = clone $this; |
| 45 | if (method_exists($new, 'setProtocolVersion')) { |
| 46 | $new->setProtocolVersion($version); |
| 47 | } else { |
| 48 | $new->server->set('SERVER_PROTOCOL', $version); |
| 49 | } |
| 50 | |
| 51 | return $new; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Retrieves all message header values. |
| 56 | * |
| 57 | * The keys represent the header name as it will be sent over the wire, and |
| 58 | * each value is an array of strings associated with the header. |
| 59 | * |
| 60 | * // Represent the headers as a string |
| 61 | * foreach ($message->getHeaders() as $name => $values) { |
| 62 | * echo $name . ": " . implode(", ", $values); |
| 63 | * } |
| 64 | * |
| 65 | * // Emit headers iteratively: |
| 66 | * foreach ($message->getHeaders() as $name => $values) { |
| 67 | * foreach ($values as $value) { |
| 68 | * header(sprintf('%s: %s', $name, $value), false); |
| 69 | * } |
| 70 | * } |
| 71 | * |
| 72 | * While header names are not case-sensitive, getHeaders() will preserve the |
| 73 | * exact case in which headers were originally specified. |
| 74 | * |
| 75 | * @return string[][] Returns an associative array of the message's headers. Each |
| 76 | * key MUST be a header name, and each value MUST be an array of strings |
| 77 | * for that header. |
| 78 | */ |
| 79 | public function getHeaders(): array |
| 80 | { |
| 81 | if (method_exists($this->headers, 'allPreserveCase')) { |
| 82 | return $this->headers->allPreserveCase(); |
| 83 | } |
| 84 | |
| 85 | return $this->headers->all(); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Checks if a header exists by the given case-insensitive name. |
| 90 | * |
| 91 | * @param string $name Case-insensitive header field name. |
| 92 | * @return bool Returns true if any header names match the given header |
| 93 | * name using a case-insensitive string comparison. Returns false if |
| 94 | * no matching header name is found in the message. |
| 95 | */ |
| 96 | public function hasHeader(mixed $name): bool |
| 97 | { |
| 98 | return $this->headers->has($name); |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Retrieves a message header value by the given case-insensitive name. |
| 103 | * |
| 104 | * This method returns an array of all the header values of the given |
| 105 | * case-insensitive header name. |
| 106 | * |
| 107 | * If the header does not appear in the message, this method MUST return an |
| 108 | * empty array. |
| 109 | * |
| 110 | * @param string $name Case-insensitive header field name. |
| 111 | * @return string[] An array of string values as provided for the given |
| 112 | * header. If the header does not appear in the message, this method MUST |
| 113 | * return an empty array. |
| 114 | */ |
| 115 | public function getHeader(mixed $name): array |
| 116 | { |
| 117 | return $this->headers->all($name); |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Retrieves a comma-separated string of the values for a single header. |
| 122 | * |
| 123 | * This method returns all of the header values of the given |
| 124 | * case-insensitive header name as a string concatenated together using |
| 125 | * a comma. |
| 126 | * |
| 127 | * NOTE: Not all header values may be appropriately represented using |
| 128 | * comma concatenation. For such headers, use getHeader() instead |
| 129 | * and supply your own delimiter when concatenating. |
| 130 | * |
| 131 | * If the header does not appear in the message, this method MUST return |
| 132 | * an empty string. |
| 133 | * |
| 134 | * @param string $name Case-insensitive header field name. |
| 135 | * @return string A string of values as provided for the given header |
| 136 | * concatenated together using a comma. If the header does not appear in |
| 137 | * the message, this method MUST return an empty string. |
| 138 | */ |
| 139 | public function getHeaderLine(mixed $name): string |
| 140 | { |
| 141 | return implode(',', $this->getHeader($name)); |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Return an instance with the provided value replacing the specified header. |
| 146 | * |
| 147 | * While header names are case-insensitive, the casing of the header will |
| 148 | * be preserved by this function, and returned from getHeaders(). |
| 149 | * |
| 150 | * This method MUST be implemented in such a way as to retain the |
| 151 | * immutability of the message, and MUST return an instance that has the |
| 152 | * new and/or updated header and value. |
| 153 | * |
| 154 | * @param string $name Case-insensitive header field name. |
| 155 | * @param string|string[] $value Header value(s). |
| 156 | * @return static |
| 157 | * @throws InvalidArgumentException for invalid header names or values. |
| 158 | */ |
| 159 | public function withHeader(mixed $name, mixed $value): static |
| 160 | { |
| 161 | $new = clone $this; |
| 162 | $new->headers->set($name, $value); |
| 163 | |
| 164 | return $new; |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Return an instance with the specified header appended with the given value. |
| 169 | * |
| 170 | * Existing values for the specified header will be maintained. The new |
| 171 | * value(s) will be appended to the existing list. If the header did not |
| 172 | * exist previously, it will be added. |
| 173 | * |
| 174 | * This method MUST be implemented in such a way as to retain the |
| 175 | * immutability of the message, and MUST return an instance that has the |
| 176 | * new header and/or value. |
| 177 | * |
| 178 | * @param string $name Case-insensitive header field name to add. |
| 179 | * @param string|string[] $value Header value(s). |
| 180 | * @return static |
| 181 | * @throws InvalidArgumentException for invalid header names or values. |
| 182 | */ |
| 183 | public function withAddedHeader(mixed $name, mixed $value): static |
| 184 | { |
| 185 | $new = clone $this; |
| 186 | $new->headers->set($name, $value, false); |
| 187 | |
| 188 | return $new; |
| 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Return an instance without the specified header. |
| 193 | * |
| 194 | * Header resolution MUST be done without case-sensitivity. |
| 195 | * |
| 196 | * This method MUST be implemented in such a way as to retain the |
| 197 | * immutability of the message, and MUST return an instance that removes |
| 198 | * the named header. |
| 199 | * |
| 200 | * @param string $name Case-insensitive header field name to remove. |
| 201 | * @return static |
| 202 | */ |
| 203 | public function withoutHeader(mixed $name): static |
| 204 | { |
| 205 | $new = clone $this; |
| 206 | $new->headers->remove($name); |
| 207 | |
| 208 | return $new; |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * Gets the body of the message. |
| 213 | * |
| 214 | * @return StreamInterface Returns the body as a stream. |
| 215 | */ |
| 216 | public function getBody(): StreamInterface |
| 217 | { |
| 218 | $stream = Stream::create((string) $this->getContent()); |
| 219 | $stream->rewind(); |
| 220 | |
| 221 | return $stream; |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Return an instance with the specified message body. |
| 226 | * |
| 227 | * The body MUST be a StreamInterface object. |
| 228 | * |
| 229 | * This method MUST be implemented in such a way as to retain the |
| 230 | * immutability of the message, and MUST return a new instance that has the |
| 231 | * new body stream. |
| 232 | * |
| 233 | * @param StreamInterface $body Body. |
| 234 | * @return static |
| 235 | * @throws InvalidArgumentException When the body is not valid. |
| 236 | */ |
| 237 | public function withBody(StreamInterface $body): static |
| 238 | { |
| 239 | $new = clone $this; |
| 240 | |
| 241 | if (method_exists($new, 'setContent')) { |
| 242 | $new->setContent((string) $body); |
| 243 | } else { |
| 244 | $new->content = $body; |
| 245 | } |
| 246 | |
| 247 | return $new; |
| 248 | } |
| 249 | } |