lander/include/http/types.h

#ifndef LANDER_HTTP_TYPES
#define LANDER_HTTP_TYPES

#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>

// Array mapping the http_request_method enum to strings
extern const char *http_method_names[];
extern const size_t http_method_names_len;

typedef enum http_method {
  http_get = 0,
  http_post = 1,
  http_put = 2,
  http_patch = 3,
  http_delete = 4
} http_method;

// Array mapping the http_response_type enum to strings
extern const char *http_status_names[][32];

typedef enum http_status {
  // 1xx
  http_continue = 100,
  http_switching_protocols = 101,
  http_processing = 102,
  http_early_hints = 103,
  // 2xx
  http_ok = 200,
  http_created = 201,
  http_accepted = 202,
  http_non_authoritative_information = 203,
  http_no_content = 204,
  http_reset_content = 205,
  http_partial_content = 206,
  http_multi_status = 207,
  http_already_reported = 208,
  // 3xx
  http_multiple_choices = 300,
  http_moved_permanently = 301,
  http_found = 302,
  http_see_other = 303,
  http_not_modified = 304,
  http_temporary_redirect = 307,
  http_permanent_redirect = 308,
  // 4xx
  http_bad_request = 400,
  http_unauthorized = 401,
  http_payment_required = 402,
  http_forbidden = 403,
  http_not_found = 404,
  http_method_not_allowed = 405,
  http_not_acceptable = 406,
  http_proxy_authentication_required = 407,
  http_request_timeout = 408,
  http_conflict = 409,
  http_gone = 410,
  http_length_required = 411,
  http_precondition_failed = 412,
  http_content_too_large = 413,
  http_uri_too_long = 414,
  http_unsupported_media_type = 415,
  http_range_not_satisfiable = 416,
  http_expection_failed = 417,
  http_im_a_teapot = 418,
  http_misdirected_request = 421,
  http_unprocessable_content = 422,
  http_locked = 423,
  http_failed_dependency = 424,
  http_too_early = 425,
  http_upgrade_required = 426,
  http_precondition_required = 428,
  http_too_many_requests = 429,
  http_request_header_fields_too_large = 431,
  // 5xx
  http_internal_server_error = 500,
  http_method_not_implemented = 501,
  http_bad_gateway = 502,
  http_service_unavailable = 503,
  http_gateway_timeout = 504,
  http_http_version_not_supported = 505,
  http_variant_also_negotiates = 506,
  http_insufficient_storage = 507,
  http_loop_detected = 508,
  http_not_extended = 510,
  http_network_authentication_required = 511
} http_status;

// Array mapping the http_mime_type enum to strings
extern const char *http_mime_type_names[][2];

typedef enum http_mime_type {
  http_mime_aac = 0,
  http_mime_bz,
  http_mime_bz2,
  http_mime_css,
  http_mime_csv,
  http_mime_gz,
  http_mime_gif,
  http_mime_htm,
  http_mime_html,
  http_mime_jar,
  http_mime_jpeg,
  http_mime_jpg,
  http_mime_js,
  http_mime_json,
  http_mime_mp3,
  http_mime_mp4,
  http_mime_png,
  http_mime_pdf,
  http_mime_rar,
  http_mime_sh,
  http_mime_svg,
  http_mime_tar,
  http_mime_txt,
  http_mime_wav,
  http_mime_7z
} http_mime_type;

// Array mapping the http_header enum to strings
extern const char *http_header_names[];

typedef enum http_header {
  http_header_connection = 0,
  http_header_location,
  http_header_content_type,
  http_header_content_disposition
} http_header;

typedef enum http_body_type {
  http_body_buf = 0,
  http_body_file = 1
} http_body_type;

typedef struct http_body {
  http_body_type type;
  char *buf;
  bool buf_owned;
  FILE *file;
  char *fname;
  bool fname_owned;
  // In the context of a request, expected_len is the content of the request's
  // Content-Length header, and len is how many bytes have already been
  // received.
  // In the context of a response, expected_len is the actual length of the
  // body, and len is how many have been written.
  size_t expected_len;
  size_t len;
} http_body;

/**
 * Initialize a new body struct.
 *
 * @return pointer to the newly allocated object.
 */
http_body *http_body_init();

/**
 * Reset a body, allowing it to be reused as if newly allocated.
 *
 * @param body body to reset
 */
void http_body_reset(http_body *body);

/**
 * Free a body. Internally, this calls http_body_reset.
 *
 * @param body body to free
 */
void http_body_free(http_body *body);

#endif