Generator for HTTP header fields, status codes and media types

This generator can be used to create PHP classes with constants for HTTP header fields, status codes and media types.

The data source is the JSON output from https://webconcepts.info which provides extensive information about the underlying concepts including links to specifications of all provided header fields, status codes and media types.

Installation with Composer

composer require crypto_scythe/http_generator --dev

Usage

./vendor/bin/http_generate.php "My\\Wanted\\Namespace" ./src/My/Wanted/Namespace

After running the command three files will be created:

• HeaderFields.php
• MediaTypes.php
• StatusCodes.php

Every file contains constants which can be used for convenience and looking up the underlying concepts regarding them.

Example for AuthenticationSchemes.php

/**
 * Authentication scheme Basic
 *
 * The Basic authentication scheme is based on the model that the client needs to authenticate itself with a
 * user-id and a password for each protection space ("realm"). The realm value is a free-form string that can
 * only be compared for equality with other realms on that server.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7617
 * @see https://datatracker.ietf.org/doc/html/rfc7617#section-2
 */
public const BASIC = 'Basic';

Example for CacheDirectives.php

/**
 * Cache directive max-age
 *
 * The "max-age" request directive indicates that the client is unwilling to accept a response whose age is
 * greater than the specified number of seconds. Unless the max-stale request directive is also present, the
 * client is not willing to accept a stale response. The "max-age" response directive indicates that the
 * response is to be considered stale after its age is greater than the specified number of seconds.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7234
 * @see https://datatracker.ietf.org/doc/html/rfc7234#section-5.2.1.1
 */
public const MAX_AGE = 'max-age';

Example for ContentCodings.php

/**
 * Content coding gzip
 *
 * The "gzip" coding is an LZ77 coding with a 32-bit Cyclic Redundancy Check (CRC) that is commonly produced by
 * the gzip file compression program. A recipient SHOULD consider "x-gzip" to be equivalent to "gzip".
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7230
 * @see https://datatracker.ietf.org/doc/html/rfc7230#section-4.2.3
 */
public const GZIP = 'gzip';

Example for ForwardedParameters.php

/**
 * Forwarded parameter for
 *
 * The "for" parameter is used to disclose information about the client that initiated the request and
 * subsequent proxies in a chain of proxies.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7239
 * @see https://datatracker.ietf.org/doc/html/rfc7239#section-5.2
 */
public const FOR = 'for';

Example for HeaderFields.php

/**
 * Header field Content-Type
 *
 * The "Content-Type" header field indicates the media type of the associated representation: either the
 * representation enclosed in the message payload or the selected representation, as determined by the message
 * semantics. The indicated media type defines both the data format and how that data is intended to be
 * processed by a recipient, within the scope of the received message semantics, after any content codings
 * indicated by Content-Encoding are decoded.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7231
 * @see https://datatracker.ietf.org/doc/html/rfc7231#section-3.1.1.5
 */
public const CONTENT_TYPE = 'Content-Type';

Example for LinkRelations.php

/**
 * Link relation canonical
 *
 * The target (canonical) IRI MUST identify content that is either duplicative or a superset of the content at
 * the context (referring) IRI.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/6596
 * @see https://datatracker.ietf.org/doc/html/rfc6596#section-3
 */
public const CANONICAL = 'canonical';

Example for MediaTypes.php

/**
 * Media type application/json
 *
 * JavaScript Object Notation (JSON) is a text format for the serialization of structured data. It is derived
 * from the object literals of JavaScript, as defined in the ECMAScript Programming Language Standard, Third
 * Edition.
 *
 * @see https://webconcepts.info/specs/IETF/I-D/ietf-jsonbis-rfc7159bis
 * @see https://datatracker.ietf.org/doc/html/draft-ietf-jsonbis-rfc7159bis#section-1
 * 
 * JavaScript Object Notation (JSON) is a text format for the serialization of structured data. It is derived
 * from the object literals of JavaScript, as defined in the ECMAScript Programming Language Standard, Third
 * Edition. JSON can represent four primitive types (strings, numbers, booleans, and null) and two structured
 * types (objects and arrays).
 *
 * @see https://webconcepts.info/specs/IETF/RFC/8259
 * @see https://datatracker.ietf.org/doc/html/rfc8259#section-1
 */
public const APPLICATION_JSON = 'application/json';

Example for Preferences.php

/**
 * Preference wait
 *
 * The "wait" preference can be used to establish an upper bound on the length of time, in seconds, the client
 * expects it will take the server to process the request once it has been received.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7240
 * @see https://datatracker.ietf.org/doc/html/rfc7240#section-4.3
 */
public const WAIT = 'wait';

Example for RangeUnits.php

/**
 * Range unit bytes
 *
 * Since representation data is transferred in payloads as a sequence of octets, a byte range is a meaningful
 * substructure for any representation transferable over HTTP. The "bytes" range unit is defined for expressing
 * subranges of the data's octet sequence.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7233
 * @see https://datatracker.ietf.org/doc/html/rfc7233#section-2.1
 */
public const BYTES = 'bytes';

Example for RequestMethods.php

/**
 * Request method GET
 *
 * The GET method requests transfer of a current selected representation for the target resource. GET is the
 * primary mechanism of information retrieval and the focus of almost all performance optimizations. Hence, when
 * people speak of retrieving some identifiable information via HTTP, they are generally referring to making a
 * GET request.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7231
 * @see https://datatracker.ietf.org/doc/html/rfc7231#section-4.3.1
 */
public const GET = 'GET';

Example for StatusCodes.php

/**
 * Status code 404
 *
 * The 404 (Not Found) status code indicates that the origin server did not find a current representation for
 * the target resource or is not willing to disclose that one exists. A 404 status code does not indicate
 * whether this lack of representation is temporary or permanent; the 410 (Gone) status code is preferred over
 * 404 if the origin server knows, presumably through some configurable means, that the condition is likely to
 * be permanent.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7231
 * @see https://datatracker.ietf.org/doc/html/rfc7231#section-6.5.4
 */
public const STATUS_404 = 404;
public const MESSAGE_404 = 'Not Found';
public const STATUS_NOT_FOUND = self::STATUS_404;
public const MESSAGE_NOT_FOUND = self::MESSAGE_404;

Example for TransferCodings.php

/**
 * Transfer coding chunked
 *
 * The chunked transfer coding wraps the payload body in order to transfer it as a series of chunks, each with
 * its own size indicator, followed by an OPTIONAL trailer containing header fields.  Chunked enables content
 * streams of unknown size to be transferred as a sequence of length-delimited buffers, which enables the sender
 * to retain connection persistence and the recipient to know when it has received the entire message.
 *
 * @see https://webconcepts.info/specs/IETF/RFC/7230
 * @see https://datatracker.ietf.org/doc/html/rfc7230#section-4.1
 */
public const CHUNKED = 'chunked';