188 lines
6.7 KiB
PHP
188 lines
6.7 KiB
PHP
<?php
|
|
|
|
namespace Psr\Http\Message;
|
|
|
|
/**
|
|
* HTTP messages consist of requests from a client to a server and responses
|
|
* from a server to a client. This interface defines the methods common to
|
|
* each.
|
|
*
|
|
* Messages are considered immutable; all methods that might change state MUST
|
|
* be implemented such that they retain the internal state of the current
|
|
* message and return an instance that contains the changed state.
|
|
*
|
|
* @link http://www.ietf.org/rfc/rfc7230.txt
|
|
* @link http://www.ietf.org/rfc/rfc7231.txt
|
|
*/
|
|
interface MessageInterface
|
|
{
|
|
/**
|
|
* Retrieves the HTTP protocol version as a string.
|
|
*
|
|
* The string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
|
|
*
|
|
* @return string HTTP protocol version.
|
|
*/
|
|
public function getProtocolVersion();
|
|
|
|
/**
|
|
* Return an instance with the specified HTTP protocol version.
|
|
*
|
|
* The version string MUST contain only the HTTP version number (e.g.,
|
|
* "1.1", "1.0").
|
|
*
|
|
* This method MUST be implemented in such a way as to retain the
|
|
* immutability of the message, and MUST return an instance that has the
|
|
* new protocol version.
|
|
*
|
|
* @param string $version HTTP protocol version
|
|
* @return static
|
|
*/
|
|
public function withProtocolVersion($version);
|
|
|
|
/**
|
|
* Retrieves all message header values.
|
|
*
|
|
* The keys represent the header name as it will be sent over the wire, and
|
|
* each value is an array of strings associated with the header.
|
|
*
|
|
* // Represent the headers as a string
|
|
* foreach ($message->getHeaders() as $name => $values) {
|
|
* echo $name . ": " . implode(", ", $values);
|
|
* }
|
|
*
|
|
* // Emit headers iteratively:
|
|
* foreach ($message->getHeaders() as $name => $values) {
|
|
* foreach ($values as $value) {
|
|
* header(sprintf('%s: %s', $name, $value), false);
|
|
* }
|
|
* }
|
|
*
|
|
* While header names are not case-sensitive, getHeaders() will preserve the
|
|
* exact case in which headers were originally specified.
|
|
*
|
|
* @return string[][] Returns an associative array of the message's headers. Each
|
|
* key MUST be a header name, and each value MUST be an array of strings
|
|
* for that header.
|
|
*/
|
|
public function getHeaders();
|
|
|
|
/**
|
|
* Checks if a header exists by the given case-insensitive name.
|
|
*
|
|
* @param string $name Case-insensitive header field name.
|
|
* @return bool Returns true if any header names match the given header
|
|
* name using a case-insensitive string comparison. Returns false if
|
|
* no matching header name is found in the message.
|
|
*/
|
|
public function hasHeader($name);
|
|
|
|
/**
|
|
* Retrieves a message header value by the given case-insensitive name.
|
|
*
|
|
* This method returns an array of all the header values of the given
|
|
* case-insensitive header name.
|
|
*
|
|
* If the header does not appear in the message, this method MUST return an
|
|
* empty array.
|
|
*
|
|
* @param string $name Case-insensitive header field name.
|
|
* @return string[] An array of string values as provided for the given
|
|
* header. If the header does not appear in the message, this method MUST
|
|
* return an empty array.
|
|
*/
|
|
public function getHeader($name);
|
|
|
|
/**
|
|
* Retrieves a comma-separated string of the values for a single header.
|
|
*
|
|
* This method returns all of the header values of the given
|
|
* case-insensitive header name as a string concatenated together using
|
|
* a comma.
|
|
*
|
|
* NOTE: Not all header values may be appropriately represented using
|
|
* comma concatenation. For such headers, use getHeader() instead
|
|
* and supply your own delimiter when concatenating.
|
|
*
|
|
* If the header does not appear in the message, this method MUST return
|
|
* an empty string.
|
|
*
|
|
* @param string $name Case-insensitive header field name.
|
|
* @return string A string of values as provided for the given header
|
|
* concatenated together using a comma. If the header does not appear in
|
|
* the message, this method MUST return an empty string.
|
|
*/
|
|
public function getHeaderLine($name);
|
|
|
|
/**
|
|
* Return an instance with the provided value replacing the specified header.
|
|
*
|
|
* While header names are case-insensitive, the casing of the header will
|
|
* be preserved by this function, and returned from getHeaders().
|
|
*
|
|
* This method MUST be implemented in such a way as to retain the
|
|
* immutability of the message, and MUST return an instance that has the
|
|
* new and/or updated header and value.
|
|
*
|
|
* @param string $name Case-insensitive header field name.
|
|
* @param string|string[] $value Header value(s).
|
|
* @return static
|
|
* @throws \InvalidArgumentException for invalid header names or values.
|
|
*/
|
|
public function withHeader($name, $value);
|
|
|
|
/**
|
|
* Return an instance with the specified header appended with the given value.
|
|
*
|
|
* Existing values for the specified header will be maintained. The new
|
|
* value(s) will be appended to the existing list. If the header did not
|
|
* exist previously, it will be added.
|
|
*
|
|
* This method MUST be implemented in such a way as to retain the
|
|
* immutability of the message, and MUST return an instance that has the
|
|
* new header and/or value.
|
|
*
|
|
* @param string $name Case-insensitive header field name to add.
|
|
* @param string|string[] $value Header value(s).
|
|
* @return static
|
|
* @throws \InvalidArgumentException for invalid header names or values.
|
|
*/
|
|
public function withAddedHeader($name, $value);
|
|
|
|
/**
|
|
* Return an instance without the specified header.
|
|
*
|
|
* Header resolution MUST be done without case-sensitivity.
|
|
*
|
|
* This method MUST be implemented in such a way as to retain the
|
|
* immutability of the message, and MUST return an instance that removes
|
|
* the named header.
|
|
*
|
|
* @param string $name Case-insensitive header field name to remove.
|
|
* @return static
|
|
*/
|
|
public function withoutHeader($name);
|
|
|
|
/**
|
|
* Gets the body of the message.
|
|
*
|
|
* @return StreamInterface Returns the body as a stream.
|
|
*/
|
|
public function getBody();
|
|
|
|
/**
|
|
* Return an instance with the specified message body.
|
|
*
|
|
* The body MUST be a StreamInterface object.
|
|
*
|
|
* This method MUST be implemented in such a way as to retain the
|
|
* immutability of the message, and MUST return a new instance that has the
|
|
* new body stream.
|
|
*
|
|
* @param StreamInterface $body Body.
|
|
* @return static
|
|
* @throws \InvalidArgumentException When the body is not valid.
|
|
*/
|
|
public function withBody(StreamInterface $body);
|
|
}
|