phpfhir/vendor/psr/http-message/src/UriInterface.php

   1 <?php
   2 namespace Psr\Http\Message;
   3
   4 /**
   5  * Value object representing a URI.
   6  *
   7  * This interface is meant to represent URIs according to RFC 3986 and to
   8  * provide methods for most common operations. Additional functionality for
   9  * working with URIs can be provided on top of the interface or externally.
  10  * Its primary use is for HTTP requests, but may also be used in other
  11  * contexts.
  12  *
  13  * Instances of this interface are considered immutable; all methods that
  14  * might change state MUST be implemented such that they retain the internal
  15  * state of the current instance and return an instance that contains the
  16  * changed state.
  17  *
  18  * Typically the Host header will be also be present in the request message.
  19  * For server-side requests, the scheme will typically be discoverable in the
  20  * server parameters.
  21  *
  22  * @link http://tools.ietf.org/html/rfc3986 (the URI specification)
  23  */
  24 interface UriInterface
  25 {
  26     /**
  27      * Retrieve the scheme component of the URI.
  28      *
  29      * If no scheme is present, this method MUST return an empty string.
  30      *
  31      * The value returned MUST be normalized to lowercase, per RFC 3986
  32      * Section 3.1.
  33      *
  34      * The trailing ":" character is not part of the scheme and MUST NOT be
  35      * added.
  36      *
  37      * @see https://tools.ietf.org/html/rfc3986#section-3.1
  38      * @return string The URI scheme.
  39      */
  40     public function getScheme();
  41
  42     /**
  43      * Retrieve the authority component of the URI.
  44      *
  45      * If no authority information is present, this method MUST return an empty
  46      * string.
  47      *
  48      * The authority syntax of the URI is:
  49      *
  50      * <pre>
  51      * [user-info@]host[:port]
  52      * </pre>
  53      *
  54      * If the port component is not set or is the standard port for the current
  55      * scheme, it SHOULD NOT be included.
  56      *
  57      * @see https://tools.ietf.org/html/rfc3986#section-3.2
  58      * @return string The URI authority, in "[user-info@]host[:port]" format.
  59      */
  60     public function getAuthority();
  61
  62     /**
  63      * Retrieve the user information component of the URI.
  64      *
  65      * If no user information is present, this method MUST return an empty
  66      * string.
  67      *
  68      * If a user is present in the URI, this will return that value;
  69      * additionally, if the password is also present, it will be appended to the
  70      * user value, with a colon (":") separating the values.
  71      *
  72      * The trailing "@" character is not part of the user information and MUST
  73      * NOT be added.
  74      *
  75      * @return string The URI user information, in "username[:password]" format.
  76      */
  77     public function getUserInfo();
  78
  79     /**
  80      * Retrieve the host component of the URI.
  81      *
  82      * If no host is present, this method MUST return an empty string.
  83      *
  84      * The value returned MUST be normalized to lowercase, per RFC 3986
  85      * Section 3.2.2.
  86      *
  87      * @see http://tools.ietf.org/html/rfc3986#section-3.2.2
  88      * @return string The URI host.
  89      */
  90     public function getHost();
  91
  92     /**
  93      * Retrieve the port component of the URI.
  94      *
  95      * If a port is present, and it is non-standard for the current scheme,
  96      * this method MUST return it as an integer. If the port is the standard port
  97      * used with the current scheme, this method SHOULD return null.
  98      *
  99      * If no port is present, and no scheme is present, this method MUST return
 100      * a null value.
 101      *
 102      * If no port is present, but a scheme is present, this method MAY return
 103      * the standard port for that scheme, but SHOULD return null.
 104      *
 105      * @return null|int The URI port.
 106      */
 107     public function getPort();
 108
 109     /**
 110      * Retrieve the path component of the URI.
 111      *
 112      * The path can either be empty or absolute (starting with a slash) or
 113      * rootless (not starting with a slash). Implementations MUST support all
 114      * three syntaxes.
 115      *
 116      * Normally, the empty path "" and absolute path "/" are considered equal as
 117      * defined in RFC 7230 Section 2.7.3. But this method MUST NOT automatically
 118      * do this normalization because in contexts with a trimmed base path, e.g.
 119      * the front controller, this difference becomes significant. It's the task
 120      * of the user to handle both "" and "/".
 121      *
 122      * The value returned MUST be percent-encoded, but MUST NOT double-encode
 123      * any characters. To determine what characters to encode, please refer to
 124      * RFC 3986, Sections 2 and 3.3.
 125      *
 126      * As an example, if the value should include a slash ("/") not intended as
 127      * delimiter between path segments, that value MUST be passed in encoded
 128      * form (e.g., "%2F") to the instance.
 129      *
 130      * @see https://tools.ietf.org/html/rfc3986#section-2
 131      * @see https://tools.ietf.org/html/rfc3986#section-3.3
 132      * @return string The URI path.
 133      */
 134     public function getPath();
 135
 136     /**
 137      * Retrieve the query string of the URI.
 138      *
 139      * If no query string is present, this method MUST return an empty string.
 140      *
 141      * The leading "?" character is not part of the query and MUST NOT be
 142      * added.
 143      *
 144      * The value returned MUST be percent-encoded, but MUST NOT double-encode
 145      * any characters. To determine what characters to encode, please refer to
 146      * RFC 3986, Sections 2 and 3.4.
 147      *
 148      * As an example, if a value in a key/value pair of the query string should
 149      * include an ampersand ("&") not intended as a delimiter between values,
 150      * that value MUST be passed in encoded form (e.g., "%26") to the instance.
 151      *
 152      * @see https://tools.ietf.org/html/rfc3986#section-2
 153      * @see https://tools.ietf.org/html/rfc3986#section-3.4
 154      * @return string The URI query string.
 155      */
 156     public function getQuery();
 157
 158     /**
 159      * Retrieve the fragment component of the URI.
 160      *
 161      * If no fragment is present, this method MUST return an empty string.
 162      *
 163      * The leading "#" character is not part of the fragment and MUST NOT be
 164      * added.
 165      *
 166      * The value returned MUST be percent-encoded, but MUST NOT double-encode
 167      * any characters. To determine what characters to encode, please refer to
 168      * RFC 3986, Sections 2 and 3.5.
 169      *
 170      * @see https://tools.ietf.org/html/rfc3986#section-2
 171      * @see https://tools.ietf.org/html/rfc3986#section-3.5
 172      * @return string The URI fragment.
 173      */
 174     public function getFragment();
 175
 176     /**
 177      * Return an instance with the specified scheme.
 178      *
 179      * This method MUST retain the state of the current instance, and return
 180      * an instance that contains the specified scheme.
 181      *
 182      * Implementations MUST support the schemes "http" and "https" case
 183      * insensitively, and MAY accommodate other schemes if required.
 184      *
 185      * An empty scheme is equivalent to removing the scheme.
 186      *
 187      * @param string $scheme The scheme to use with the new instance.
 188      * @return static A new instance with the specified scheme.
 189      * @throws \InvalidArgumentException for invalid or unsupported schemes.
 190      */
 191     public function withScheme($scheme);
 192
 193     /**
 194      * Return an instance with the specified user information.
 195      *
 196      * This method MUST retain the state of the current instance, and return
 197      * an instance that contains the specified user information.
 198      *
 199      * Password is optional, but the user information MUST include the
 200      * user; an empty string for the user is equivalent to removing user
 201      * information.
 202      *
 203      * @param string $user The user name to use for authority.
 204      * @param null|string $password The password associated with $user.
 205      * @return static A new instance with the specified user information.
 206      */
 207     public function withUserInfo($user, $password = null);
 208
 209     /**
 210      * Return an instance with the specified host.
 211      *
 212      * This method MUST retain the state of the current instance, and return
 213      * an instance that contains the specified host.
 214      *
 215      * An empty host value is equivalent to removing the host.
 216      *
 217      * @param string $host The hostname to use with the new instance.
 218      * @return static A new instance with the specified host.
 219      * @throws \InvalidArgumentException for invalid hostnames.
 220      */
 221     public function withHost($host);
 222
 223     /**
 224      * Return an instance with the specified port.
 225      *
 226      * This method MUST retain the state of the current instance, and return
 227      * an instance that contains the specified port.
 228      *
 229      * Implementations MUST raise an exception for ports outside the
 230      * established TCP and UDP port ranges.
 231      *
 232      * A null value provided for the port is equivalent to removing the port
 233      * information.
 234      *
 235      * @param null|int $port The port to use with the new instance; a null value
 236      *     removes the port information.
 237      * @return static A new instance with the specified port.
 238      * @throws \InvalidArgumentException for invalid ports.
 239      */
 240     public function withPort($port);
 241
 242     /**
 243      * Return an instance with the specified path.
 244      *
 245      * This method MUST retain the state of the current instance, and return
 246      * an instance that contains the specified path.
 247      *
 248      * The path can either be empty or absolute (starting with a slash) or
 249      * rootless (not starting with a slash). Implementations MUST support all
 250      * three syntaxes.
 251      *
 252      * If the path is intended to be domain-relative rather than path relative then
 253      * it must begin with a slash ("/"). Paths not starting with a slash ("/")
 254      * are assumed to be relative to some base path known to the application or
 255      * consumer.
 256      *
 257      * Users can provide both encoded and decoded path characters.
 258      * Implementations ensure the correct encoding as outlined in getPath().
 259      *
 260      * @param string $path The path to use with the new instance.
 261      * @return static A new instance with the specified path.
 262      * @throws \InvalidArgumentException for invalid paths.
 263      */
 264     public function withPath($path);
 265
 266     /**
 267      * Return an instance with the specified query string.
 268      *
 269      * This method MUST retain the state of the current instance, and return
 270      * an instance that contains the specified query string.
 271      *
 272      * Users can provide both encoded and decoded query characters.
 273      * Implementations ensure the correct encoding as outlined in getQuery().
 274      *
 275      * An empty query string value is equivalent to removing the query string.
 276      *
 277      * @param string $query The query string to use with the new instance.
 278      * @return static A new instance with the specified query string.
 279      * @throws \InvalidArgumentException for invalid query strings.
 280      */
 281     public function withQuery($query);
 282
 283     /**
 284      * Return an instance with the specified URI fragment.
 285      *
 286      * This method MUST retain the state of the current instance, and return
 287      * an instance that contains the specified URI fragment.
 288      *
 289      * Users can provide both encoded and decoded fragment characters.
 290      * Implementations ensure the correct encoding as outlined in getFragment().
 291      *
 292      * An empty fragment value is equivalent to removing the fragment.
 293      *
 294      * @param string $fragment The fragment to use with the new instance.
 295      * @return static A new instance with the specified fragment.
 296      */
 297     public function withFragment($fragment);
 298
 299     /**
 300      * Return the string representation as a URI reference.
 301      *
 302      * Depending on which components of the URI are present, the resulting
 303      * string is either a full URI or relative reference according to RFC 3986,
 304      * Section 4.1. The method concatenates the various components of the URI,
 305      * using the appropriate delimiters:
 306      *
 307      * - If a scheme is present, it MUST be suffixed by ":".
 308      * - If an authority is present, it MUST be prefixed by "//".
 309      * - The path can be concatenated without delimiters. But there are two
 310      *   cases where the path has to be adjusted to make the URI reference
 311      *   valid as PHP does not allow to throw an exception in __toString():
 312      *     - If the path is rootless and an authority is present, the path MUST
 313      *       be prefixed by "/".
 314      *     - If the path is starting with more than one "/" and no authority is
 315      *       present, the starting slashes MUST be reduced to one.
 316      * - If a query is present, it MUST be prefixed by "?".
 317      * - If a fragment is present, it MUST be prefixed by "#".
 318      *
 319      * @see http://tools.ietf.org/html/rfc3986#section-4.1
 320      * @return string
 321      */
 322     public function __toString();
 323 }