cups/http.h

   1 /*
   2  * "$Id$"
   3  *
   4  * Hyper-Text Transport Protocol definitions for CUPS.
   5  *
   6  * Copyright 2007-2013 by Apple Inc.
   7  * Copyright 1997-2007 by Easy Software Products, all rights reserved.
   8  *
   9  * These coded instructions, statements, and computer programs are the
  10  * property of Apple Inc. and are protected by Federal copyright
  11  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  * which should have been included with this file.  If this file is
  13  * file is missing or damaged, see the license at "http://www.cups.org/".
  14  *
  15  * This file is subject to the Apple OS-Developed Software exception.
  16  */
  17
  18 #ifndef _CUPS_HTTP_H_
  19 #  define _CUPS_HTTP_H_
  20
  21 /*
  22  * Include necessary headers...
  23  */
  24
  25 #  include "versioning.h"
  26 #  include "array.h"
  27 #  include <string.h>
  28 #  include <time.h>
  29 #  include <sys/types.h>
  30 #  ifdef WIN32
  31 #    ifndef __CUPS_SSIZE_T_DEFINED
  32 #      define __CUPS_SSIZE_T_DEFINED
  33 /* Windows does not support the ssize_t type, so map it to off_t... */
  34 typedef off_t ssize_t;                  /* @private@ */
  35 #    endif /* !__CUPS_SSIZE_T_DEFINED */
  36 #    include <winsock2.h>
  37 #    include <ws2tcpip.h>
  38 #  else
  39 #    include <unistd.h>
  40 #    include <sys/time.h>
  41 #    include <sys/socket.h>
  42 #    include <netdb.h>
  43 #    include <netinet/in.h>
  44 #    include <arpa/inet.h>
  45 #    include <netinet/in_systm.h>
  46 #    include <netinet/ip.h>
  47 #    if !defined(__APPLE__) || !defined(TCP_NODELAY)
  48 #      include <netinet/tcp.h>
  49 #    endif /* !__APPLE__ || !TCP_NODELAY */
  50 #    if defined(AF_UNIX) && !defined(AF_LOCAL)
  51 #      define AF_LOCAL AF_UNIX          /* Older UNIX's have old names... */
  52 #    endif /* AF_UNIX && !AF_LOCAL */
  53 #    ifdef AF_LOCAL
  54 #      include <sys/un.h>
  55 #    endif /* AF_LOCAL */
  56 #    if defined(LOCAL_PEERCRED) && !defined(SO_PEERCRED)
  57 #      define SO_PEERCRED LOCAL_PEERCRED
  58 #    endif /* LOCAL_PEERCRED && !SO_PEERCRED */
  59 #  endif /* WIN32 */
  60
  61
  62 /*
  63  * C++ magic...
  64  */
  65
  66 #  ifdef __cplusplus
  67 extern "C" {
  68 #  endif /* __cplusplus */
  69
  70
  71 /*
  72  * Oh, the wonderful world of IPv6 compatibility.  Apparently some
  73  * implementations expose the (more logical) 32-bit address parts
  74  * to everyone, while others only expose it to kernel code...  To
  75  * make supporting IPv6 even easier, each vendor chose different
  76  * core structure and union names, so the same defines or code
  77  * can't be used on all platforms.
  78  *
  79  * The following will likely need tweaking on new platforms that
  80  * support IPv6 - the "s6_addr32" define maps to the 32-bit integer
  81  * array in the in6_addr union, which is named differently on various
  82  * platforms.
  83  */
  84
  85 #if defined(AF_INET6) && !defined(s6_addr32)
  86 #  if defined(__sun)
  87 #    define s6_addr32   _S6_un._S6_u32
  88 #  elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)|| defined(__DragonFly__)
  89 #    define s6_addr32   __u6_addr.__u6_addr32
  90 #  elif defined(__osf__)
  91 #    define s6_addr32   s6_un.sa6_laddr
  92 #  elif defined(WIN32)
  93 /*
  94  * Windows only defines byte and 16-bit word members of the union and
  95  * requires special casing of all raw address code...
  96  */
  97 #    define s6_addr32   error_need_win32_specific_code
  98 #  endif /* __sun */
  99 #endif /* AF_INET6 && !s6_addr32 */
 100
 101
 102 /*
 103  * Limits...
 104  */
 105
 106 #  define HTTP_MAX_URI          1024    /* Max length of URI string */
 107 #  define HTTP_MAX_HOST         256     /* Max length of hostname string */
 108 #  define HTTP_MAX_BUFFER       2048    /* Max length of data buffer */
 109 #  define HTTP_MAX_VALUE        256     /* Max header field value length */
 110
 111
 112 /*
 113  * Types and structures...
 114  */
 115
 116 typedef enum http_auth_e                /**** HTTP authentication types ****/
 117 {
 118   HTTP_AUTH_NONE,                       /* No authentication in use */
 119   HTTP_AUTH_BASIC,                      /* Basic authentication in use */
 120   HTTP_AUTH_MD5,                        /* Digest authentication in use */
 121   HTTP_AUTH_MD5_SESS,                   /* MD5-session authentication in use */
 122   HTTP_AUTH_MD5_INT,                    /* Digest authentication in use for body */
 123   HTTP_AUTH_MD5_SESS_INT,               /* MD5-session authentication in use for body */
 124   HTTP_AUTH_NEGOTIATE                   /* GSSAPI authentication in use @since CUPS 1.3/OS X 10.5@ */
 125 } http_auth_t;
 126
 127 typedef enum http_encoding_e            /**** HTTP transfer encoding values ****/
 128 {
 129   HTTP_ENCODING_LENGTH,                 /* Data is sent with Content-Length */
 130   HTTP_ENCODING_CHUNKED,                /* Data is chunked */
 131   HTTP_ENCODING_FIELDS                  /* Sending HTTP fields */
 132
 133 #  ifndef _CUPS_NO_DEPRECATED
 134 #    define HTTP_ENCODE_LENGTH  HTTP_ENCODING_LENGTH
 135 #    define HTTP_ENCODE_CHUNKED HTTP_ENCODING_CHUNKED
 136 #    define HTTP_ENCODE_FIELDS  HTTP_ENCODING_FIELDS
 137 #  endif /* !_CUPS_NO_DEPRECATED */
 138 } http_encoding_t;
 139
 140 typedef enum http_encryption_e          /**** HTTP encryption values ****/
 141 {
 142   HTTP_ENCRYPTION_IF_REQUESTED,         /* Encrypt if requested (TLS upgrade) */
 143   HTTP_ENCRYPTION_NEVER,                /* Never encrypt */
 144   HTTP_ENCRYPTION_REQUIRED,             /* Encryption is required (TLS upgrade) */
 145   HTTP_ENCRYPTION_ALWAYS                /* Always encrypt (SSL) */
 146
 147 #  ifndef _CUPS_NO_DEPRECATED
 148 #    define HTTP_ENCRYPT_IF_REQUESTED   HTTP_ENCRYPTION_IF_REQUESTED
 149 #    define HTTP_ENCRYPT_NEVER          HTTP_ENCRYPTION_NEVER
 150 #    define HTTP_ENCRYPT_REQUIRED       HTTP_ENCRYPTION_REQUIRED
 151 #    define HTTP_ENCRYPT_ALWAYS         HTTP_ENCRYPTION_ALWAYS
 152 #  endif /* !_CUPS_NO_DEPRECATED */
 153 } http_encryption_t;
 154
 155 typedef enum http_field_e               /**** HTTP field names ****/
 156 {
 157   HTTP_FIELD_UNKNOWN = -1,              /* Unknown field */
 158   HTTP_FIELD_ACCEPT_LANGUAGE,           /* Accept-Language field */
 159   HTTP_FIELD_ACCEPT_RANGES,             /* Accept-Ranges field */
 160   HTTP_FIELD_AUTHORIZATION,             /* Authorization field */
 161   HTTP_FIELD_CONNECTION,                /* Connection field */
 162   HTTP_FIELD_CONTENT_ENCODING,          /* Content-Encoding field */
 163   HTTP_FIELD_CONTENT_LANGUAGE,          /* Content-Language field */
 164   HTTP_FIELD_CONTENT_LENGTH,            /* Content-Length field */
 165   HTTP_FIELD_CONTENT_LOCATION,          /* Content-Location field */
 166   HTTP_FIELD_CONTENT_MD5,               /* Content-MD5 field */
 167   HTTP_FIELD_CONTENT_RANGE,             /* Content-Range field */
 168   HTTP_FIELD_CONTENT_TYPE,              /* Content-Type field */
 169   HTTP_FIELD_CONTENT_VERSION,           /* Content-Version field */
 170   HTTP_FIELD_DATE,                      /* Date field */
 171   HTTP_FIELD_HOST,                      /* Host field */
 172   HTTP_FIELD_IF_MODIFIED_SINCE,         /* If-Modified-Since field */
 173   HTTP_FIELD_IF_UNMODIFIED_SINCE,       /* If-Unmodified-Since field */
 174   HTTP_FIELD_KEEP_ALIVE,                /* Keep-Alive field */
 175   HTTP_FIELD_LAST_MODIFIED,             /* Last-Modified field */
 176   HTTP_FIELD_LINK,                      /* Link field */
 177   HTTP_FIELD_LOCATION,                  /* Location field */
 178   HTTP_FIELD_RANGE,                     /* Range field */
 179   HTTP_FIELD_REFERER,                   /* Referer field */
 180   HTTP_FIELD_RETRY_AFTER,               /* Retry-After field */
 181   HTTP_FIELD_TRANSFER_ENCODING,         /* Transfer-Encoding field */
 182   HTTP_FIELD_UPGRADE,                   /* Upgrade field */
 183   HTTP_FIELD_USER_AGENT,                /* User-Agent field */
 184   HTTP_FIELD_WWW_AUTHENTICATE,          /* WWW-Authenticate field */
 185   HTTP_FIELD_ACCEPT_ENCODING,           /* Accepting-Encoding field @since CUPS 1.7/OS X 10.9@ */
 186   HTTP_FIELD_ALLOW,                     /* Allow field @since CUPS 1.7/OS X 10.9@ */
 187   HTTP_FIELD_SERVER,                    /* Server field @since CUPS 1.7/OS X 10.9@ */
 188   HTTP_FIELD_MAX                        /* Maximum field index */
 189 } http_field_t;
 190
 191 typedef enum http_keepalive_e           /**** HTTP keep-alive values ****/
 192 {
 193   HTTP_KEEPALIVE_OFF = 0,               /* No keep alive support */
 194   HTTP_KEEPALIVE_ON                     /* Use keep alive */
 195 } http_keepalive_t;
 196
 197 typedef enum http_state_e               /**** HTTP state values; states
 198                                          **** are server-oriented...
 199                                          ****/
 200 {
 201   HTTP_STATE_ERROR = -1,                /* Error on socket */
 202   HTTP_STATE_WAITING,                   /* Waiting for command */
 203   HTTP_STATE_OPTIONS,                   /* OPTIONS command, waiting for blank line */
 204   HTTP_STATE_GET,                       /* GET command, waiting for blank line */
 205   HTTP_STATE_GET_SEND,                  /* GET command, sending data */
 206   HTTP_STATE_HEAD,                      /* HEAD command, waiting for blank line */
 207   HTTP_STATE_POST,                      /* POST command, waiting for blank line */
 208   HTTP_STATE_POST_RECV,                 /* POST command, receiving data */
 209   HTTP_STATE_POST_SEND,                 /* POST command, sending data */
 210   HTTP_STATE_PUT,                       /* PUT command, waiting for blank line */
 211   HTTP_STATE_PUT_RECV,                  /* PUT command, receiving data */
 212   HTTP_STATE_DELETE,                    /* DELETE command, waiting for blank line */
 213   HTTP_STATE_TRACE,                     /* TRACE command, waiting for blank line */
 214   HTTP_STATE_CONNECT,                   /* CONNECT command, waiting for blank line */
 215   HTTP_STATE_STATUS,                    /* Command complete, sending status */
 216   HTTP_STATE_UNKNOWN_METHOD,            /* Unknown request method, waiting for blank line @since CUPS 1.7/OS X 10.9@ */
 217   HTTP_STATE_UNKNOWN_VERSION            /* Unknown request method, waiting for blank line @since CUPS 1.7/OS X 10.9@ */
 218
 219 #  ifndef _CUPS_NO_DEPRECATED
 220 #    define HTTP_WAITING        HTTP_STATE_WAITING
 221 #    define HTTP_OPTIONS        HTTP_STATE_OPTIONS
 222 #    define HTTP_GET            HTTP_STATE_GET
 223 #    define HTTP_GET_SEND       HTTP_STATE_GET_SEND
 224 #    define HTTP_HEAD           HTTP_STATE_HEAD
 225 #    define HTTP_POST           HTTP_STATE_POST
 226 #    define HTTP_POST_RECV      HTTP_STATE_POST_RECV
 227 #    define HTTP_POST_SEND      HTTP_STATE_POST_SEND
 228 #    define HTTP_PUT            HTTP_STATE_PUT
 229 #    define HTTP_PUT_RECV       HTTP_STATE_PUT_RECV
 230 #    define HTTP_DELETE         HTTP_STATE_DELETE
 231 #    define HTTP_TRACE          HTTP_STATE_TRACE
 232 #    define HTTP_CLOSE          HTTP_STATE_CONNECT
 233 #    define HTTP_STATUS         HTTP_STATE_STATUS
 234 #  endif /* !_CUPS_NO_DEPRECATED */
 235 } http_state_t;
 236
 237 typedef enum http_status_e              /**** HTTP status codes ****/
 238 {
 239   HTTP_STATUS_ERROR = -1,               /* An error response from httpXxxx() */
 240   HTTP_STATUS_NONE = 0,                 /* No Expect value @since CUPS 1.7/OS X 10.9@ */
 241
 242   HTTP_STATUS_CONTINUE = 100,           /* Everything OK, keep going... */
 243   HTTP_STATUS_SWITCHING_PROTOCOLS,      /* HTTP upgrade to TLS/SSL */
 244
 245   HTTP_STATUS_OK = 200,                 /* OPTIONS/GET/HEAD/POST/TRACE command was successful */
 246   HTTP_STATUS_CREATED,                  /* PUT command was successful */
 247   HTTP_STATUS_ACCEPTED,                 /* DELETE command was successful */
 248   HTTP_STATUS_NOT_AUTHORITATIVE,        /* Information isn't authoritative */
 249   HTTP_STATUS_NO_CONTENT,               /* Successful command, no new data */
 250   HTTP_STATUS_RESET_CONTENT,            /* Content was reset/recreated */
 251   HTTP_STATUS_PARTIAL_CONTENT,          /* Only a partial file was recieved/sent */
 252
 253   HTTP_STATUS_MULTIPLE_CHOICES = 300,   /* Multiple files match request */
 254   HTTP_STATUS_MOVED_PERMANENTLY,        /* Document has moved permanently */
 255   HTTP_STATUS_MOVED_TEMPORARILY,        /* Document has moved temporarily */
 256   HTTP_STATUS_SEE_OTHER,                /* See this other link... */
 257   HTTP_STATUS_NOT_MODIFIED,             /* File not modified */
 258   HTTP_STATUS_USE_PROXY,                /* Must use a proxy to access this URI */
 259
 260   HTTP_STATUS_BAD_REQUEST = 400,        /* Bad request */
 261   HTTP_STATUS_UNAUTHORIZED,             /* Unauthorized to access host */
 262   HTTP_STATUS_PAYMENT_REQUIRED,         /* Payment required */
 263   HTTP_STATUS_FORBIDDEN,                /* Forbidden to access this URI */
 264   HTTP_STATUS_NOT_FOUND,                /* URI was not found */
 265   HTTP_STATUS_METHOD_NOT_ALLOWED,       /* Method is not allowed */
 266   HTTP_STATUS_NOT_ACCEPTABLE,           /* Not Acceptable */
 267   HTTP_STATUS_PROXY_AUTHENTICATION,     /* Proxy Authentication is Required */
 268   HTTP_STATUS_REQUEST_TIMEOUT,          /* Request timed out */
 269   HTTP_STATUS_CONFLICT,                 /* Request is self-conflicting */
 270   HTTP_STATUS_GONE,                     /* Server has gone away */
 271   HTTP_STATUS_LENGTH_REQUIRED,          /* A content length or encoding is required */
 272   HTTP_STATUS_PRECONDITION,             /* Precondition failed */
 273   HTTP_STATUS_REQUEST_TOO_LARGE,        /* Request entity too large */
 274   HTTP_STATUS_URI_TOO_LONG,             /* URI too long */
 275   HTTP_STATUS_UNSUPPORTED_MEDIATYPE,    /* The requested media type is unsupported */
 276   HTTP_STATUS_REQUESTED_RANGE,          /* The requested range is not satisfiable */
 277   HTTP_STATUS_EXPECTATION_FAILED,       /* The expectation given in an Expect header field was not met */
 278   HTTP_STATUS_UPGRADE_REQUIRED = 426,   /* Upgrade to SSL/TLS required */
 279
 280   HTTP_STATUS_SERVER_ERROR = 500,       /* Internal server error */
 281   HTTP_STATUS_NOT_IMPLEMENTED,          /* Feature not implemented */
 282   HTTP_STATUS_BAD_GATEWAY,              /* Bad gateway */
 283   HTTP_STATUS_SERVICE_UNAVAILABLE,      /* Service is unavailable */
 284   HTTP_STATUS_GATEWAY_TIMEOUT,          /* Gateway connection timed out */
 285   HTTP_STATUS_NOT_SUPPORTED,            /* HTTP version not supported */
 286
 287   HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED = 1000,
 288                                         /* User canceled authorization @since CUPS 1.4@ */
 289   HTTP_STATUS_CUPS_PKI_ERROR,           /* Error negotiating a secure connection @since CUPS 1.5/OS X 10.7@ */
 290   HTTP_STATUS_CUPS_WEBIF_DISABLED       /* Web interface is disabled @private@ */
 291
 292 #  ifndef _CUPS_NO_DEPRECATED
 293 /* Old names for this enumeration */
 294 #    define HTTP_ERROR                  HTTP_STATUS_ERROR
 295
 296 #    define HTTP_CONTINUE               HTTP_STATUS_CONTINUE
 297 #    define HTTP_SWITCHING_PROTOCOLS    HTTP_STATUS_SWITCHING_PROTOCOLS
 298
 299 #    define HTTP_OK                     HTTP_STATUS_OK
 300 #    define HTTP_CREATED                HTTP_STATUS_CREATED
 301 #    define HTTP_ACCEPTED               HTTP_STATUS_ACCEPTED
 302 #    define HTTP_NOT_AUTHORITATIVE      HTTP_STATUS_NOT_AUTHORITATIVE
 303 #    define HTTP_NO_CONTENT             HTTP_STATUS_NO_CONTENT
 304 #    define HTTP_RESET_CONTENT          HTTP_STATUS_RESET_CONTENT
 305 #    define HTTP_PARTIAL_CONTENT        HTTP_STATUS_PARTIAL_CONTENT
 306
 307 #    define HTTP_MULTIPLE_CHOICES       HTTP_STATUS_MULTIPLE_CHOICES
 308 #    define HTTP_MOVED_PERMANENTLY      HTTP_STATUS_MOVED_PERMANENTLY
 309 #    define HTTP_MOVED_TEMPORARILY      HTTP_STATUS_MOVED_TEMPORARILY
 310 #    define HTTP_SEE_OTHER              HTTP_STATUS_SEE_OTHER
 311 #    define HTTP_NOT_MODIFIED           HTTP_STATUS_NOT_MODIFIED
 312 #    define HTTP_USE_PROXY              HTTP_STATUS_USE_PROXY
 313
 314 #    define HTTP_BAD_REQUEST            HTTP_STATUS_BAD_REQUEST
 315 #    define HTTP_UNAUTHORIZED           HTTP_STATUS_UNAUTHORIZED
 316 #    define HTTP_PAYMENT_REQUIRED       HTTP_STATUS_PAYMENT_REQUIRED
 317 #    define HTTP_FORBIDDEN              HTTP_STATUS_FORBIDDEN
 318 #    define HTTP_NOT_FOUND              HTTP_STATUS_NOT_FOUND
 319 #    define HTTP_METHOD_NOT_ALLOWED     HTTP_STATUS_METHOD_NOT_ALLOWED
 320 #    define HTTP_NOT_ACCEPTABLE         HTTP_STATUS_NOT_ACCEPTABLE
 321 #    define HTTP_PROXY_AUTHENTICATION   HTTP_STATUS_PROXY_AUTHENTICATION
 322 #    define HTTP_REQUEST_TIMEOUT        HTTP_STATUS_REQUEST_TIMEOUT
 323 #    define HTTP_CONFLICT               HTTP_STATUS_CONFLICT
 324 #    define HTTP_GONE                   HTTP_STATUS_GONE
 325 #    define HTTP_LENGTH_REQUIRED        HTTP_STATUS_LENGTH_REQUIRED
 326 #    define HTTP_PRECONDITION           HTTP_STATUS_PRECONDITION
 327 #    define HTTP_REQUEST_TOO_LARGE      HTTP_STATUS_REQUEST_TOO_LARGE
 328 #    define HTTP_URI_TOO_LONG           HTTP_STATUS_URI_TOO_LONG
 329 #    define HTTP_UNSUPPORTED_MEDIATYPE  HTTP_STATUS_UNSUPPORTED_MEDIATYPE
 330 #    define HTTP_REQUESTED_RANGE        HTTP_STATUS_REQUESTED_RANGE
 331 #    define HTTP_EXPECTATION_FAILED     HTTP_STATUS_EXPECTATION_FAILED
 332 #    define HTTP_UPGRADE_REQUIRED       HTTP_STATUS_UPGRADE_REQUIRED
 333
 334 #    define HTTP_SERVER_ERROR           HTTP_STATUS_SERVER_ERROR
 335 #    define HTTP_NOT_IMPLEMENTED        HTTP_STATUS_NOT_IMPLEMENTED
 336 #    define HTTP_BAD_GATEWAY            HTTP_STATUS_BAD_GATEWAY
 337 #    define HTTP_SERVICE_UNAVAILABLE    HTTP_STATUS_SERVICE_UNAVAILABLE
 338 #    define HTTP_GATEWAY_TIMEOUT        HTTP_STATUS_GATEWAY_TIMEOUT
 339 #    define HTTP_NOT_SUPPORTED          HTTP_STATUS_NOT_SUPPORTED
 340
 341 #    define HTTP_AUTHORIZATION_CANCELED HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED
 342 #    define HTTP_PKI_ERROR              HTTP_STATUS_CUPS_PKI_ERROR
 343 #    define HTTP_WEBIF_DISABLED         HTTP_STATUS_CUPS_WEBIF_DISABLED
 344 #  endif /* !_CUPS_NO_DEPRECATED */
 345 } http_status_t;
 346
 347 typedef enum http_uri_status_e          /**** URI separation status @since CUPS 1.2@ ****/
 348 {
 349   HTTP_URI_STATUS_OVERFLOW = -8,        /* URI buffer for httpAssembleURI is too small */
 350   HTTP_URI_STATUS_BAD_ARGUMENTS = -7,   /* Bad arguments to function (error) */
 351   HTTP_URI_STATUS_BAD_RESOURCE = -6,    /* Bad resource in URI (error) */
 352   HTTP_URI_STATUS_BAD_PORT = -5,        /* Bad port number in URI (error) */
 353   HTTP_URI_STATUS_BAD_HOSTNAME = -4,    /* Bad hostname in URI (error) */
 354   HTTP_URI_STATUS_BAD_USERNAME = -3,    /* Bad username in URI (error) */
 355   HTTP_URI_STATUS_BAD_SCHEME = -2,      /* Bad scheme in URI (error) */
 356   HTTP_URI_STATUS_BAD_URI = -1,         /* Bad/empty URI (error) */
 357   HTTP_URI_STATUS_OK = 0,               /* URI decoded OK */
 358   HTTP_URI_STATUS_MISSING_SCHEME,       /* Missing scheme in URI (warning) */
 359   HTTP_URI_STATUS_UNKNOWN_SCHEME,       /* Unknown scheme in URI (warning) */
 360   HTTP_URI_STATUS_MISSING_RESOURCE      /* Missing resource in URI (warning) */
 361
 362 #  ifndef _CUPS_NO_DEPRECATED
 363 #    define HTTP_URI_OVERFLOW           HTTP_URI_STATUS_OVERFLOW
 364 #    define HTTP_URI_BAD_ARGUMENTS      HTTP_URI_STATUS_BAD_ARGUMENTS
 365 #    define HTTP_URI_BAD_RESOURCE       HTTP_URI_STATUS_BAD_RESOURCE
 366 #    define HTTP_URI_BAD_PORT           HTTP_URI_STATUS_BAD_PORT
 367 #    define HTTP_URI_BAD_HOSTNAME       HTTP_URI_STATUS_BAD_HOSTNAME
 368 #    define HTTP_URI_BAD_USERNAME       HTTP_URI_STATUS_BAD_USERNAME
 369 #    define HTTP_URI_BAD_SCHEME         HTTP_URI_STATUS_BAD_SCHEME
 370 #    define HTTP_URI_BAD_URI            HTTP_URI_STATUS_BAD_URI
 371 #    define HTTP_URI_OK                 HTTP_URI_STATUS_OK
 372 #    define HTTP_URI_MISSING_SCHEME     HTTP_URI_STATUS_MISSING_SCHEME
 373 #    define HTTP_URI_UNKNOWN_SCHEME     HTTP_URI_STATUS_UNKNOWN_SCHEME
 374 #    define HTTP_URI_MISSING_RESOURCE   HTTP_URI_STATUS_MISSING_RESOURCE
 375 #  endif /* !_CUPS_NO_DEPRECATED */
 376 } http_uri_status_t;
 377
 378 typedef enum http_uri_coding_e          /**** URI en/decode flags ****/
 379 {
 380   HTTP_URI_CODING_NONE = 0,             /* Don't en/decode anything */
 381   HTTP_URI_CODING_USERNAME = 1,         /* En/decode the username portion */
 382   HTTP_URI_CODING_HOSTNAME = 2,         /* En/decode the hostname portion */
 383   HTTP_URI_CODING_RESOURCE = 4,         /* En/decode the resource portion */
 384   HTTP_URI_CODING_MOST = 7,             /* En/decode all but the query */
 385   HTTP_URI_CODING_QUERY = 8,            /* En/decode the query portion */
 386   HTTP_URI_CODING_ALL = 15,             /* En/decode everything */
 387   HTTP_URI_CODING_RFC6874 = 16          /* Use RFC 6874 address format */
 388 } http_uri_coding_t;
 389
 390 typedef enum http_version_e             /**** HTTP version numbers ****/
 391 {
 392   HTTP_VERSION_0_9 = 9,                 /* HTTP/0.9 */
 393   HTTP_VERSION_1_0 = 100,               /* HTTP/1.0 */
 394   HTTP_VERSION_1_1 = 101                /* HTTP/1.1 */
 395
 396 #  ifndef _CUPS_NO_DEPRECATED
 397 #    define HTTP_0_9    HTTP_VERSION_0_9
 398 #    define HTTP_1_0    HTTP_VERSION_1_0
 399 #    define HTTP_1_1    HTTP_VERSION_1_1
 400 #  endif /* !_CUPS_NO_DEPRECATED */
 401 } http_version_t;
 402
 403 typedef union _http_addr_u              /**** Socket address union, which
 404                                          **** makes using IPv6 and other
 405                                          **** address types easier and
 406                                          **** more portable. @since CUPS 1.2/OS X 10.5@
 407                                          ****/
 408 {
 409   struct sockaddr       addr;           /* Base structure for family value */
 410   struct sockaddr_in    ipv4;           /* IPv4 address */
 411 #ifdef AF_INET6
 412   struct sockaddr_in6   ipv6;           /* IPv6 address */
 413 #endif /* AF_INET6 */
 414 #ifdef AF_LOCAL
 415   struct sockaddr_un    un;             /* Domain socket file */
 416 #endif /* AF_LOCAL */
 417   char                  pad[256];       /* Padding to ensure binary compatibility */
 418 } http_addr_t;
 419
 420 typedef struct http_addrlist_s          /**** Socket address list, which is
 421                                          **** used to enumerate all of the
 422                                          **** addresses that are associated
 423                                          **** with a hostname. @since CUPS 1.2/OS X 10.5@
 424                                          ****/
 425 {
 426   struct http_addrlist_s *next;         /* Pointer to next address in list */
 427   http_addr_t           addr;           /* Address */
 428 } http_addrlist_t;
 429
 430 typedef struct _http_s http_t;          /**** HTTP connection type ****/
 431
 432 typedef struct http_credential_s        /**** HTTP credential data @since CUPS 1.5/OS X 10.7@ ****/
 433 {
 434   void          *data;                  /* Pointer to credential data */
 435   size_t        datalen;                /* Credential length */
 436 } http_credential_t;
 437
 438 typedef int (*http_timeout_cb_t)(http_t *http, void *user_data);
 439                                         /**** HTTP timeout callback @since CUPS 1.5/OS X 10.7@ ****/
 440
 441
 442
 443 /*
 444  * Prototypes...
 445  */
 446
 447 extern void             httpBlocking(http_t *http, int b);
 448 extern int              httpCheck(http_t *http);
 449 extern void             httpClearFields(http_t *http);
 450 extern void             httpClose(http_t *http);
 451 extern http_t           *httpConnect(const char *host, int port)
 452                                      _CUPS_DEPRECATED_1_7_MSG("Use httpConnect2 instead.");
 453 extern http_t           *httpConnectEncrypt(const char *host, int port,
 454                                             http_encryption_t encryption)
 455                                             _CUPS_DEPRECATED_1_7_MSG("Use httpConnect2 instead.");
 456 extern int              httpDelete(http_t *http, const char *uri);
 457 extern int              httpEncryption(http_t *http, http_encryption_t e);
 458 extern int              httpError(http_t *http);
 459 extern void             httpFlush(http_t *http);
 460 extern int              httpGet(http_t *http, const char *uri);
 461 extern char             *httpGets(char *line, int length, http_t *http);
 462 extern const char       *httpGetDateString(time_t t);
 463 extern time_t           httpGetDateTime(const char *s);
 464 extern const char       *httpGetField(http_t *http, http_field_t field);
 465 extern struct hostent   *httpGetHostByName(const char *name);
 466 extern char             *httpGetSubField(http_t *http, http_field_t field,
 467                                          const char *name, char *value);
 468 extern int              httpHead(http_t *http, const char *uri);
 469 extern void             httpInitialize(void);
 470 extern int              httpOptions(http_t *http, const char *uri);
 471 extern int              httpPost(http_t *http, const char *uri);
 472 extern int              httpPrintf(http_t *http, const char *format, ...)
 473                         __attribute__ ((__format__ (__printf__, 2, 3)));
 474 extern int              httpPut(http_t *http, const char *uri);
 475 extern int              httpRead(http_t *http, char *buffer, int length) _CUPS_DEPRECATED_MSG("Use httpRead2 instead.");
 476 extern int              httpReconnect(http_t *http) _CUPS_DEPRECATED_1_6_MSG("Use httpReconnect2 instead.");
 477 extern void             httpSeparate(const char *uri, char *method,
 478                                      char *username, char *host, int *port,
 479                                      char *resource) _CUPS_DEPRECATED_MSG("Use httpSeparateURI instead.");
 480 extern void             httpSetField(http_t *http, http_field_t field,
 481                                      const char *value);
 482 extern const char       *httpStatus(http_status_t status);
 483 extern int              httpTrace(http_t *http, const char *uri);
 484 extern http_status_t    httpUpdate(http_t *http);
 485 extern int              httpWrite(http_t *http, const char *buffer, int length) _CUPS_DEPRECATED_MSG("Use httpWrite2 instead.");
 486 extern char             *httpEncode64(char *out, const char *in) _CUPS_DEPRECATED_MSG("Use httpEncode64_2 instead.");
 487 extern char             *httpDecode64(char *out, const char *in) _CUPS_DEPRECATED_MSG("Use httpDecode64_2 instead.");
 488 extern int              httpGetLength(http_t *http) _CUPS_DEPRECATED_MSG("Use httpGetLength2 instead.");
 489 extern char             *httpMD5(const char *, const char *, const char *,
 490                                  char [33]);
 491 extern char             *httpMD5Final(const char *, const char *, const char *,
 492                                       char [33]);
 493 extern char             *httpMD5String(const unsigned char *, char [33]);
 494
 495 /**** New in CUPS 1.1.19 ****/
 496 extern void             httpClearCookie(http_t *http) _CUPS_API_1_1_19;
 497 extern const char       *httpGetCookie(http_t *http) _CUPS_API_1_1_19;
 498 extern void             httpSetCookie(http_t *http, const char *cookie) _CUPS_API_1_1_19;
 499 extern int              httpWait(http_t *http, int msec) _CUPS_API_1_1_19;
 500
 501 /**** New in CUPS 1.1.21 ****/
 502 extern char             *httpDecode64_2(char *out, int *outlen, const char *in) _CUPS_API_1_1_21;
 503 extern char             *httpEncode64_2(char *out, int outlen, const char *in,
 504                                         int inlen) _CUPS_API_1_1_21;
 505 extern void             httpSeparate2(const char *uri,
 506                                       char *method, int methodlen,
 507                                       char *username, int usernamelen,
 508                                       char *host, int hostlen, int *port,
 509                                       char *resource, int resourcelen) _CUPS_DEPRECATED_MSG("Use httpSeparateURI instead.");
 510
 511 /**** New in CUPS 1.2/OS X 10.5 ****/
 512 extern int              httpAddrAny(const http_addr_t *addr) _CUPS_API_1_2;
 513 extern http_addrlist_t  *httpAddrConnect(http_addrlist_t *addrlist, int *sock) _CUPS_API_1_2;
 514 extern int              httpAddrEqual(const http_addr_t *addr1,
 515                                       const http_addr_t *addr2) _CUPS_API_1_2;
 516 extern void             httpAddrFreeList(http_addrlist_t *addrlist) _CUPS_API_1_2;
 517 extern http_addrlist_t  *httpAddrGetList(const char *hostname, int family,
 518                                          const char *service) _CUPS_API_1_2;
 519 extern int              httpAddrLength(const http_addr_t *addr) _CUPS_API_1_2;
 520 extern int              httpAddrLocalhost(const http_addr_t *addr) _CUPS_API_1_2;
 521 extern char             *httpAddrLookup(const http_addr_t *addr,
 522                                         char *name, int namelen) _CUPS_API_1_2;
 523 extern char             *httpAddrString(const http_addr_t *addr,
 524                                         char *s, int slen) _CUPS_API_1_2;
 525 extern http_uri_status_t httpAssembleURI(http_uri_coding_t encoding,
 526                                          char *uri, int urilen,
 527                                          const char *scheme,
 528                                          const char *username,
 529                                          const char *host, int port,
 530                                          const char *resource) _CUPS_API_1_2;
 531 extern http_uri_status_t httpAssembleURIf(http_uri_coding_t encoding,
 532                                           char *uri, int urilen,
 533                                           const char *scheme,
 534                                           const char *username,
 535                                           const char *host, int port,
 536                                           const char *resourcef, ...) _CUPS_API_1_2;
 537 extern int              httpFlushWrite(http_t *http) _CUPS_API_1_2;
 538 extern int              httpGetBlocking(http_t *http) _CUPS_API_1_2;
 539 extern const char       *httpGetDateString2(time_t t, char *s, int slen) _CUPS_API_1_2;
 540 extern int              httpGetFd(http_t *http) _CUPS_API_1_2;
 541 extern const char       *httpGetHostname(http_t *http, char *s, int slen) _CUPS_API_1_2;
 542 extern off_t            httpGetLength2(http_t *http) _CUPS_API_1_2;
 543 extern http_status_t    httpGetStatus(http_t *http) _CUPS_API_1_2;
 544 extern char             *httpGetSubField2(http_t *http, http_field_t field,
 545                                           const char *name, char *value,
 546                                           int valuelen) _CUPS_API_1_2;
 547 extern ssize_t          httpRead2(http_t *http, char *buffer, size_t length) _CUPS_API_1_2;
 548 extern http_uri_status_t httpSeparateURI(http_uri_coding_t decoding,
 549                                          const char *uri,
 550                                          char *scheme, int schemelen,
 551                                          char *username, int usernamelen,
 552                                          char *host, int hostlen, int *port,
 553                                          char *resource, int resourcelen) _CUPS_API_1_2;
 554 extern void             httpSetExpect(http_t *http, http_status_t expect) _CUPS_API_1_2;
 555 extern void             httpSetLength(http_t *http, size_t length) _CUPS_API_1_2;
 556 extern ssize_t          httpWrite2(http_t *http, const char *buffer,
 557                                    size_t length) _CUPS_API_1_2;
 558
 559 /**** New in CUPS 1.3/OS X 10.5 ****/
 560 extern char             *httpGetAuthString(http_t *http) _CUPS_API_1_3;
 561 extern void             httpSetAuthString(http_t *http, const char *scheme,
 562                                           const char *data) _CUPS_API_1_3;
 563
 564 /**** New in CUPS 1.5/OS X 10.7 ****/
 565 extern int              httpAddCredential(cups_array_t *credentials,
 566                                           const void *data, size_t datalen)
 567                                           _CUPS_API_1_5;
 568 extern int              httpCopyCredentials(http_t *http,
 569                                             cups_array_t **credentials)
 570                                             _CUPS_API_1_5;
 571 extern void             httpFreeCredentials(cups_array_t *certs) _CUPS_API_1_5;
 572 extern int              httpSetCredentials(http_t *http, cups_array_t *certs)
 573                                            _CUPS_API_1_5;
 574 extern void             httpSetTimeout(http_t *http, double timeout,
 575                                        http_timeout_cb_t cb, void *user_data)
 576                                        _CUPS_API_1_5;
 577
 578 /**** New in CUPS 1.6/OS X 10.8 ****/
 579 extern http_addrlist_t  *httpAddrConnect2(http_addrlist_t *addrlist, int *sock,
 580                                           int msec, int *cancel)
 581                                           _CUPS_API_1_6;
 582 extern http_state_t     httpGetState(http_t *http) _CUPS_API_1_6;
 583 extern http_version_t   httpGetVersion(http_t *http) _CUPS_API_1_6;
 584 extern int              httpReconnect2(http_t *http, int msec, int *cancel)
 585                                        _CUPS_API_1_6;
 586
 587
 588 /**** New in CUPS 1.7/OS X 10.9 ****/
 589 extern http_t           *httpAcceptConnection(int fd, int blocking)
 590                                               _CUPS_API_1_7;
 591 extern http_addrlist_t  *httpAddrCopyList(http_addrlist_t *src) _CUPS_API_1_7;
 592 extern int              httpAddrListen(http_addr_t *addr, int port)
 593                                        _CUPS_API_1_7;
 594 extern int              httpAddrPort(http_addr_t *addr) _CUPS_API_1_7;
 595 extern char             *httpAssembleUUID(const char *server, int port,
 596                                           const char *name, int number,
 597                                           char *buffer, size_t bufsize)
 598                                           _CUPS_API_1_7;
 599 extern http_t           *httpConnect2(const char *host, int port,
 600                                       http_addrlist_t *addrlist,
 601                                       int family, http_encryption_t encryption,
 602                                       int blocking, int msec, int *cancel)
 603                                       _CUPS_API_1_7;
 604 extern const char       *httpGetContentEncoding(http_t *http) _CUPS_API_1_7;
 605 extern http_status_t    httpGetExpect(http_t *http) _CUPS_API_1_7;
 606 extern ssize_t          httpPeek(http_t *http, char *buffer, size_t length)
 607                                  _CUPS_API_1_7;
 608 extern http_state_t     httpReadRequest(http_t *http, char *resource,
 609                                         size_t resourcelen) _CUPS_API_1_7;
 610 extern void             httpSetDefaultField(http_t *http, http_field_t field,
 611                                             const char *value) _CUPS_API_1_7;
 612 extern http_state_t     httpWriteResponse(http_t *http,
 613                                           http_status_t status) _CUPS_API_1_7;
 614
 615 /* New in CUPS 2.0 */
 616 extern int              httpAddrClose(http_addr_t *addr, int fd) _CUPS_API_2_0;
 617 extern int              httpAddrFamily(http_addr_t *addr) _CUPS_API_2_0;
 618 extern int              httpCompareCredentials(cups_array_t *cred1,
 619                                                cups_array_t *cred2)
 620                                                _CUPS_API_2_0;
 621 extern int              httpCreateCredentials(const char *path,
 622                                               cups_array_t **credentials,
 623                                               const char *common_name)
 624                                               _CUPS_API_2_0;
 625 extern size_t           httpCredentialsString(cups_array_t *credentials,
 626                                               char *buffer, size_t bufsize)
 627                                               _CUPS_API_2_0;
 628 extern http_field_t     httpFieldValue(const char *name) _CUPS_API_2_0;
 629 extern time_t           httpGetActivity(http_t *http) _CUPS_API_2_0;
 630 extern http_addr_t      *httpGetAddress(http_t *http) _CUPS_API_2_0;
 631 extern http_encryption_t httpGetEncryption(http_t *http) _CUPS_API_2_0;
 632 extern http_keepalive_t httpGetKeepAlive(http_t *http) _CUPS_API_2_0;
 633 extern size_t           httpGetPending(http_t *http) _CUPS_API_2_0;
 634 extern size_t           httpGetReady(http_t *http) _CUPS_API_2_0;
 635 extern size_t           httpGetRemaining(http_t *http) _CUPS_API_2_0;
 636 extern int              httpIsChunked(http_t *http) _CUPS_API_2_0;
 637 extern int              httpIsEncrypted(http_t *http) _CUPS_API_2_0;
 638 extern int              httpLoadCredentials(const char *path,
 639                                             cups_array_t **credentials,
 640                                             const char *common_name)
 641                                             _CUPS_API_2_0;
 642 extern const char       *httpResolveHostname(http_t *http, char *buffer, size_t bufsize) _CUPS_API_2_0;
 643 extern int              httpSaveCredentials(const char *path,
 644                                             cups_array_t *credentials,
 645                                             const char *common_name)
 646                                             _CUPS_API_2_0;
 647 extern void             httpSetKeepAlive(http_t *http, http_keepalive_t keep_alive) _CUPS_API_2_0;
 648 extern void             httpShutdown(http_t *http) _CUPS_API_2_0;
 649 extern const char       *httpStateString(http_state_t state);
 650
 651
 652 /*
 653  * C++ magic...
 654  */
 655
 656 #  ifdef __cplusplus
 657 }
 658 #  endif /* __cplusplus */
 659 #endif /* !_CUPS_HTTP_H_ */
 660
 661 /*
 662  * End of "$Id$".
 663  */