324 lines
12 KiB
PHP
324 lines
12 KiB
PHP
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<?php
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namespace Psr\Http\Message;
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/**
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* Value object representing a URI.
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*
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* This interface is meant to represent URIs according to RFC 3986 and to
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* provide methods for most common operations. Additional functionality for
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* working with URIs can be provided on top of the interface or externally.
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* Its primary use is for HTTP requests, but may also be used in other
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* contexts.
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*
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* Instances of this interface are considered immutable; all methods that
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* might change state MUST be implemented such that they retain the internal
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* state of the current instance and return an instance that contains the
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* changed state.
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*
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* Typically the Host header will be also be present in the request message.
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* For server-side requests, the scheme will typically be discoverable in the
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* server parameters.
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*
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* @link http://tools.ietf.org/html/rfc3986 (the URI specification)
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*/
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interface UriInterface
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{
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/**
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* Retrieve the scheme component of the URI.
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*
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* If no scheme is present, this method MUST return an empty string.
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*
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* The value returned MUST be normalized to lowercase, per RFC 3986
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* Section 3.1.
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*
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* The trailing ":" character is not part of the scheme and MUST NOT be
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* added.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-3.1
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* @return string The URI scheme.
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*/
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public function getScheme();
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/**
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* Retrieve the authority component of the URI.
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*
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* If no authority information is present, this method MUST return an empty
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* string.
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*
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* The authority syntax of the URI is:
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*
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* <pre>
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* [user-info@]host[:port]
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* </pre>
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*
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* If the port component is not set or is the standard port for the current
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* scheme, it SHOULD NOT be included.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-3.2
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* @return string The URI authority, in "[user-info@]host[:port]" format.
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*/
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public function getAuthority();
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/**
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* Retrieve the user information component of the URI.
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*
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* If no user information is present, this method MUST return an empty
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* string.
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*
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* If a user is present in the URI, this will return that value;
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* additionally, if the password is also present, it will be appended to the
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* user value, with a colon (":") separating the values.
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*
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* The trailing "@" character is not part of the user information and MUST
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* NOT be added.
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*
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* @return string The URI user information, in "username[:password]" format.
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*/
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public function getUserInfo();
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/**
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* Retrieve the host component of the URI.
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*
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* If no host is present, this method MUST return an empty string.
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*
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* The value returned MUST be normalized to lowercase, per RFC 3986
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* Section 3.2.2.
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*
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* @see http://tools.ietf.org/html/rfc3986#section-3.2.2
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* @return string The URI host.
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*/
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public function getHost();
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/**
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* Retrieve the port component of the URI.
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*
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* If a port is present, and it is non-standard for the current scheme,
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* this method MUST return it as an integer. If the port is the standard port
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* used with the current scheme, this method SHOULD return null.
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*
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* If no port is present, and no scheme is present, this method MUST return
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* a null value.
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*
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* If no port is present, but a scheme is present, this method MAY return
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* the standard port for that scheme, but SHOULD return null.
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*
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* @return null|int The URI port.
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*/
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public function getPort();
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/**
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* Retrieve the path component of the URI.
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*
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* The path can either be empty or absolute (starting with a slash) or
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* rootless (not starting with a slash). Implementations MUST support all
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* three syntaxes.
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*
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* Normally, the empty path "" and absolute path "/" are considered equal as
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* defined in RFC 7230 Section 2.7.3. But this method MUST NOT automatically
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* do this normalization because in contexts with a trimmed base path, e.g.
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* the front controller, this difference becomes significant. It's the task
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* of the user to handle both "" and "/".
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*
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* The value returned MUST be percent-encoded, but MUST NOT double-encode
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* any characters. To determine what characters to encode, please refer to
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* RFC 3986, Sections 2 and 3.3.
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*
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* As an example, if the value should include a slash ("/") not intended as
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* delimiter between path segments, that value MUST be passed in encoded
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* form (e.g., "%2F") to the instance.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-2
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* @see https://tools.ietf.org/html/rfc3986#section-3.3
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* @return string The URI path.
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*/
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public function getPath();
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/**
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* Retrieve the query string of the URI.
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*
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* If no query string is present, this method MUST return an empty string.
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*
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* The leading "?" character is not part of the query and MUST NOT be
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* added.
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*
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* The value returned MUST be percent-encoded, but MUST NOT double-encode
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* any characters. To determine what characters to encode, please refer to
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* RFC 3986, Sections 2 and 3.4.
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*
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* As an example, if a value in a key/value pair of the query string should
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* include an ampersand ("&") not intended as a delimiter between values,
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* that value MUST be passed in encoded form (e.g., "%26") to the instance.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-2
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* @see https://tools.ietf.org/html/rfc3986#section-3.4
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* @return string The URI query string.
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*/
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public function getQuery();
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/**
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* Retrieve the fragment component of the URI.
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*
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* If no fragment is present, this method MUST return an empty string.
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*
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* The leading "#" character is not part of the fragment and MUST NOT be
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* added.
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*
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* The value returned MUST be percent-encoded, but MUST NOT double-encode
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* any characters. To determine what characters to encode, please refer to
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* RFC 3986, Sections 2 and 3.5.
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*
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* @see https://tools.ietf.org/html/rfc3986#section-2
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* @see https://tools.ietf.org/html/rfc3986#section-3.5
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* @return string The URI fragment.
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*/
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public function getFragment();
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/**
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* Return an instance with the specified scheme.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified scheme.
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*
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* Implementations MUST support the schemes "http" and "https" case
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* insensitively, and MAY accommodate other schemes if required.
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*
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* An empty scheme is equivalent to removing the scheme.
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*
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* @param string $scheme The scheme to use with the new instance.
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* @return self A new instance with the specified scheme.
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* @throws \InvalidArgumentException for invalid or unsupported schemes.
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*/
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public function withScheme($scheme);
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/**
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* Return an instance with the specified user information.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified user information.
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*
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* Password is optional, but the user information MUST include the
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* user; an empty string for the user is equivalent to removing user
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* information.
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*
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* @param string $user The user name to use for authority.
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* @param null|string $password The password associated with $user.
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* @return self A new instance with the specified user information.
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*/
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public function withUserInfo($user, $password = null);
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/**
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* Return an instance with the specified host.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified host.
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*
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* An empty host value is equivalent to removing the host.
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*
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* @param string $host The hostname to use with the new instance.
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* @return self A new instance with the specified host.
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* @throws \InvalidArgumentException for invalid hostnames.
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*/
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public function withHost($host);
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/**
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* Return an instance with the specified port.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified port.
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*
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* Implementations MUST raise an exception for ports outside the
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* established TCP and UDP port ranges.
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*
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* A null value provided for the port is equivalent to removing the port
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* information.
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*
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* @param null|int $port The port to use with the new instance; a null value
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* removes the port information.
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* @return self A new instance with the specified port.
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* @throws \InvalidArgumentException for invalid ports.
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*/
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public function withPort($port);
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/**
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* Return an instance with the specified path.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified path.
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*
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* The path can either be empty or absolute (starting with a slash) or
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* rootless (not starting with a slash). Implementations MUST support all
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* three syntaxes.
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*
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* If the path is intended to be domain-relative rather than path relative then
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* it must begin with a slash ("/"). Paths not starting with a slash ("/")
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* are assumed to be relative to some base path known to the application or
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* consumer.
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*
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* Users can provide both encoded and decoded path characters.
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* Implementations ensure the correct encoding as outlined in getPath().
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*
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* @param string $path The path to use with the new instance.
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* @return self A new instance with the specified path.
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* @throws \InvalidArgumentException for invalid paths.
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*/
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public function withPath($path);
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/**
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* Return an instance with the specified query string.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified query string.
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*
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* Users can provide both encoded and decoded query characters.
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* Implementations ensure the correct encoding as outlined in getQuery().
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*
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* An empty query string value is equivalent to removing the query string.
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*
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* @param string $query The query string to use with the new instance.
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* @return self A new instance with the specified query string.
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* @throws \InvalidArgumentException for invalid query strings.
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*/
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public function withQuery($query);
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/**
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* Return an instance with the specified URI fragment.
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*
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* This method MUST retain the state of the current instance, and return
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* an instance that contains the specified URI fragment.
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*
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* Users can provide both encoded and decoded fragment characters.
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* Implementations ensure the correct encoding as outlined in getFragment().
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*
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* An empty fragment value is equivalent to removing the fragment.
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*
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* @param string $fragment The fragment to use with the new instance.
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* @return self A new instance with the specified fragment.
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*/
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public function withFragment($fragment);
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/**
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* Return the string representation as a URI reference.
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*
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* Depending on which components of the URI are present, the resulting
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* string is either a full URI or relative reference according to RFC 3986,
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* Section 4.1. The method concatenates the various components of the URI,
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* using the appropriate delimiters:
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*
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* - If a scheme is present, it MUST be suffixed by ":".
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* - If an authority is present, it MUST be prefixed by "//".
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* - The path can be concatenated without delimiters. But there are two
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* cases where the path has to be adjusted to make the URI reference
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* valid as PHP does not allow to throw an exception in __toString():
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* - If the path is rootless and an authority is present, the path MUST
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* be prefixed by "/".
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* - If the path is starting with more than one "/" and no authority is
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* present, the starting slashes MUST be reduced to one.
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* - If a query is present, it MUST be prefixed by "?".
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* - If a fragment is present, it MUST be prefixed by "#".
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*
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* @see http://tools.ietf.org/html/rfc3986#section-4.1
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* @return string
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*/
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public function __toString();
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}
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