cups/request.c

   1 /*
   2  * "$Id: request.c 7460 2008-04-16 02:19:54Z mike $"
   3  *
   4  *   IPP utilities for the Common UNIX Printing System (CUPS).
   5  *
   6  *   Copyright 2007-2008 by Apple Inc.
   7  *   Copyright 1997-2007 by Easy Software Products.
   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  * Contents:
  18  *
  19  *   cupsDoFileRequest()    - Do an IPP request with a file.
  20  *   cupsDoIORequest()      - Do an IPP request with file descriptors.
  21  *   cupsDoRequest()        - Do an IPP request.
  22  *   cupsGetResponse()      - Get a response to an IPP request.
  23  *   cupsReadResponseData() - Read additional data after the IPP response.
  24  *   cupsSendRequest()      - Send an IPP request.
  25  *   cupsWriteRequestData() - Write additional data after an IPP request.
  26  *   _cupsSetError()        - Set the last IPP status code and status-message.
  27  *   _cupsSetHTTPError()    - Set the last error using the HTTP status.
  28  */
  29
  30 /*
  31  * Include necessary headers...
  32  */
  33
  34 #include "globals.h"
  35 #include "debug.h"
  36 #include <stdlib.h>
  37 #include <errno.h>
  38 #include <fcntl.h>
  39 #include <sys/stat.h>
  40 #if defined(WIN32) || defined(__EMX__)
  41 #  include <io.h>
  42 #else
  43 #  include <unistd.h>
  44 #endif /* WIN32 || __EMX__ */
  45 #ifndef O_BINARY
  46 #  define O_BINARY 0
  47 #endif /* O_BINARY */
  48
  49
  50 /*
  51  * 'cupsDoFileRequest()' - Do an IPP request with a file.
  52  *
  53  * This function sends the IPP request to the specified server, retrying
  54  * and authenticating as necessary.  The request is freed with @link ippDelete@
  55  * after receiving a valid IPP response.
  56  */
  57
  58 ipp_t *                                 /* O - Response data */
  59 cupsDoFileRequest(http_t     *http,     /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
  60                   ipp_t      *request,  /* I - IPP request */
  61                   const char *resource, /* I - HTTP resource for POST */
  62                   const char *filename) /* I - File to send or @code NULL@ for none */
  63 {
  64   ipp_t         *response;              /* IPP response data */
  65   int           infile;                 /* Input file */
  66
  67
  68   DEBUG_printf(("cupsDoFileRequest(http=%p, request=%p(%s), resource=\"%s\", "
  69                 "filename=\"%s\")\n", http, request,
  70                 request ? ippOpString(request->request.op.operation_id) : "?",
  71                 resource ? resource : "(null)",
  72                 filename ? filename : "(null)"));
  73
  74   if (filename)
  75   {
  76     if ((infile = open(filename, O_RDONLY | O_BINARY)) < 0)
  77     {
  78      /*
  79       * Can't get file information!
  80       */
  81
  82       _cupsSetError(errno == ENOENT ? IPP_NOT_FOUND : IPP_NOT_AUTHORIZED,
  83                     NULL, 0);
  84
  85       ippDelete(request);
  86
  87       return (NULL);
  88     }
  89   }
  90   else
  91     infile = -1;
  92
  93   response = cupsDoIORequest(http, request, resource, infile, -1);
  94
  95   if (infile >= 0)
  96     close(infile);
  97
  98   return (response);
  99 }
 100
 101
 102 /*
 103  * 'cupsDoIORequest()' - Do an IPP request with file descriptors.
 104  *
 105  * This function sends the IPP request to the specified server, retrying
 106  * and authenticating as necessary.  The request is freed with ippDelete()
 107  * after receiving a valid IPP response.
 108  *
 109  * If "infile" is a valid file descriptor, cupsDoIORequest() copies
 110  * all of the data from the file after the IPP request message.
 111  *
 112  * If "outfile" is a valid file descriptor, cupsDoIORequest() copies
 113  * all of the data after the IPP response message to the file.
 114  *
 115  * @since CUPS 1.3@
 116  */
 117
 118 ipp_t *                                 /* O - Response data */
 119 cupsDoIORequest(http_t     *http,       /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 120                 ipp_t      *request,    /* I - IPP request */
 121                 const char *resource,   /* I - HTTP resource for POST */
 122                 int        infile,      /* I - File to read from or -1 for none */
 123                 int        outfile)     /* I - File to write to or -1 for none */
 124 {
 125   ipp_t         *response = NULL;       /* IPP response data */
 126   size_t        length = 0;             /* Content-Length value */
 127   http_status_t status;                 /* Status of HTTP request */
 128   struct stat   fileinfo;               /* File information */
 129   int           bytes;                  /* Number of bytes read/written */
 130   char          buffer[32768];          /* Output buffer */
 131
 132
 133   DEBUG_printf(("cupsDoIORequest(http=%p, request=%p(%s), resource=\"%s\", "
 134                 "infile=%d, outfile=%d)\n", http, request,
 135                 request ? ippOpString(request->request.op.operation_id) : "?",
 136                 resource ? resource : "(null)", infile, outfile));
 137
 138  /*
 139   * Range check input...
 140   */
 141
 142   if (!request || !resource)
 143   {
 144     ippDelete(request);
 145
 146     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 147
 148     return (NULL);
 149   }
 150
 151  /*
 152   * Get the default connection as needed...
 153   */
 154
 155   if (!http)
 156     if ((http = _cupsConnect()) == NULL)
 157       return (NULL);
 158
 159  /*
 160   * See if we have a file to send...
 161   */
 162
 163   if (infile >= 0)
 164   {
 165     if (fstat(infile, &fileinfo))
 166     {
 167      /*
 168       * Can't get file information!
 169       */
 170
 171       _cupsSetError(errno == EBADF ? IPP_NOT_FOUND : IPP_NOT_AUTHORIZED,
 172                     NULL, 0);
 173
 174       ippDelete(request);
 175
 176       return (NULL);
 177     }
 178
 179 #ifdef WIN32
 180     if (fileinfo.st_mode & _S_IFDIR)
 181 #else
 182     if (S_ISDIR(fileinfo.st_mode))
 183 #endif /* WIN32 */
 184     {
 185      /*
 186       * Can't send a directory...
 187       */
 188
 189       ippDelete(request);
 190
 191       _cupsSetError(IPP_NOT_POSSIBLE, strerror(EISDIR), 0);
 192
 193       return (NULL);
 194     }
 195
 196 #ifndef WIN32
 197     if (!S_ISREG(fileinfo.st_mode))
 198       length = 0;                       /* Chunk when piping */
 199     else
 200 #endif /* !WIN32 */
 201     length = ippLength(request) + fileinfo.st_size;
 202   }
 203   else
 204     length = ippLength(request);
 205
 206  /*
 207   * Loop until we can send the request without authorization problems.
 208   */
 209
 210   while (response == NULL)
 211   {
 212     DEBUG_puts("cupsDoFileRequest: setup...");
 213
 214    /*
 215     * Send the request...
 216     */
 217
 218     status = cupsSendRequest(http, request, resource, length);
 219
 220     DEBUG_printf(("cupsDoFileRequest: status=%d\n", status));
 221
 222     if (status == HTTP_CONTINUE && request->state == IPP_DATA && infile >= 0)
 223     {
 224       DEBUG_puts("cupsDoFileRequest: file write...");
 225
 226      /*
 227       * Send the file with the request...
 228       */
 229
 230 #ifndef WIN32
 231       if (S_ISREG(fileinfo.st_mode))
 232 #endif /* WIN32 */
 233       lseek(infile, 0, SEEK_SET);
 234
 235       while ((bytes = (int)read(infile, buffer, sizeof(buffer))) > 0)
 236       {
 237         if (httpCheck(http))
 238         {
 239           if ((status = httpUpdate(http)) != HTTP_CONTINUE)
 240             break;
 241         }
 242
 243         if (httpWrite2(http, buffer, bytes) < bytes)
 244           break;
 245       }
 246     }
 247
 248    /*
 249     * Get the server's response...
 250     */
 251
 252     if (status == HTTP_CONTINUE || status == HTTP_OK)
 253     {
 254       response = cupsGetResponse(http, resource);
 255       status   = http->status;
 256     }
 257
 258     if (status == HTTP_FORBIDDEN)
 259       break;
 260
 261     if (response)
 262     {
 263       if (outfile >= 0)
 264       {
 265        /*
 266         * Write trailing data to file...
 267         */
 268
 269         while ((bytes = (int)httpRead2(http, buffer, sizeof(buffer))) > 0)
 270           if (write(outfile, buffer, bytes) < bytes)
 271             break;
 272       }
 273       else
 274       {
 275        /*
 276         * Flush any remaining data...
 277         */
 278
 279         httpFlush(http);
 280       }
 281     }
 282   }
 283
 284  /*
 285   * Delete the original request and return the response...
 286   */
 287
 288   ippDelete(request);
 289
 290   return (response);
 291 }
 292
 293
 294 /*
 295  * 'cupsDoRequest()' - Do an IPP request.
 296  *
 297  * This function sends the IPP request to the specified server, retrying
 298  * and authenticating as necessary.  The request is freed with ippDelete()
 299  * after receiving a valid IPP response.
 300  */
 301
 302 ipp_t *                                 /* O - Response data */
 303 cupsDoRequest(http_t     *http,         /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 304               ipp_t      *request,      /* I - IPP request */
 305               const char *resource)     /* I - HTTP resource for POST */
 306 {
 307   DEBUG_printf(("cupsDoRequest(http=%p, request=%p(%s), resource=\"%s\")\n",
 308                 http, request,
 309                 request ? ippOpString(request->request.op.operation_id) : "?",
 310                 resource ? resource : "(null)"));
 311
 312   return (cupsDoFileRequest(http, request, resource, NULL));
 313 }
 314
 315
 316 /*
 317  * 'cupsGetResponse()' - Get a response to an IPP request.
 318  *
 319  * Use this function to get the response for an IPP request sent using
 320  * cupsSendDocument() or cupsSendRequest(). For requests that return
 321  * additional data, use httpRead() after getting a successful response.
 322  *
 323  * @since CUPS 1.4@
 324  */
 325
 326 ipp_t *                                 /* O - Response or @code NULL@ on HTTP error */
 327 cupsGetResponse(http_t     *http,       /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 328                 const char *resource)   /* I - HTTP resource for POST */
 329 {
 330   http_status_t status;                 /* HTTP status */
 331   ipp_state_t   state;                  /* IPP read state */
 332   ipp_t         *response = NULL;       /* IPP response */
 333
 334
 335   DEBUG_printf(("cupsGetReponse(http=%p, resource=\"%s\")\n", http,
 336                 resource ? resource : "(null)"));
 337
 338  /*
 339   * Connect to the default server as needed...
 340   */
 341
 342   if (!http)
 343     http = _cupsConnect();
 344
 345   if (!http || (http->state != HTTP_POST_RECV && http->state != HTTP_POST_SEND))
 346     return (NULL);
 347
 348  /*
 349   * Check for an unfinished chunked request...
 350   */
 351
 352   if (http->data_encoding == HTTP_ENCODE_CHUNKED)
 353   {
 354    /*
 355     * Send a 0-length chunk to finish off the request...
 356     */
 357
 358     DEBUG_puts("cupsGetResponse: Finishing chunked POST...");
 359
 360     if (httpWrite2(http, "", 0) < 0)
 361       return (NULL);
 362   }
 363
 364  /*
 365   * Wait for a response from the server...
 366   */
 367
 368   DEBUG_puts("cupsGetResponse: Update loop...");
 369
 370   while ((status = httpUpdate(http)) == HTTP_CONTINUE)
 371     /* Do nothing but update */;
 372
 373   DEBUG_printf(("cupsGetResponse: status=%d\n", status));
 374
 375   if (status == HTTP_OK)
 376   {
 377    /*
 378     * Get the IPP response...
 379     */
 380
 381     response = ippNew();
 382
 383     while ((state = ippRead(http, response)) != IPP_DATA)
 384       if (state == IPP_ERROR)
 385         break;
 386
 387     if (state == IPP_ERROR)
 388     {
 389      /*
 390       * Delete the response...
 391       */
 392
 393       DEBUG_puts("cupsGetResponse: IPP read error!");
 394
 395       ippDelete(response);
 396       response = NULL;
 397
 398       _cupsSetError(IPP_SERVICE_UNAVAILABLE, NULL, 0);
 399     }
 400   }
 401   else if (status != HTTP_ERROR)
 402   {
 403    /*
 404     * Flush any error message...
 405     */
 406
 407     httpFlush(http);
 408
 409    /*
 410     * Then handle encryption and authentication...
 411     */
 412
 413     if (status == HTTP_UNAUTHORIZED)
 414     {
 415      /*
 416       * See if we can do authentication...
 417       */
 418
 419       int auth_result;
 420
 421       DEBUG_puts("cupsGetResponse: Need authorization...");
 422
 423       if ((auth_result = cupsDoAuthentication(http, "POST", resource)) == 0)
 424         httpReconnect(http);
 425       else if (auth_result < 0)
 426         http->status = status = HTTP_FORBIDDEN;
 427     }
 428
 429 #ifdef HAVE_SSL
 430     else if (status == HTTP_UPGRADE_REQUIRED)
 431     {
 432      /*
 433       * Force a reconnect with encryption...
 434       */
 435
 436       DEBUG_puts("cupsGetResponse: Need encryption...");
 437
 438       if (!httpReconnect(http))
 439         httpEncryption(http, HTTP_ENCRYPT_REQUIRED);
 440     }
 441 #endif /* HAVE_SSL */
 442   }
 443
 444   if (response)
 445   {
 446     ipp_attribute_t     *attr;          /* status-message attribute */
 447
 448
 449     attr = ippFindAttribute(response, "status-message", IPP_TAG_TEXT);
 450
 451     DEBUG_printf(("cupsGetResponse: status-code=%s, status-message=\"%s\"\n",
 452                   ippErrorString(response->request.status.status_code),
 453                   attr ? attr->values[0].string.text : ""));
 454
 455     _cupsSetError(response->request.status.status_code,
 456                   attr ? attr->values[0].string.text :
 457                       ippErrorString(response->request.status.status_code), 0);
 458   }
 459   else if (status != HTTP_OK)
 460     _cupsSetHTTPError(status);
 461
 462   return (response);
 463 }
 464
 465
 466 /*
 467  * 'cupsReadResponseData()' - Read additional data after the IPP response.
 468  *
 469  * This function is used after cupsGetResponse() to read the PPD or document
 470  * files for CUPS_GET_PPD and CUPS_GET_DOCUMENT requests, respectively.
 471  *
 472  * @since CUPS 1.4@
 473  */
 474
 475 ssize_t                                 /* O - Bytes read, 0 on EOF, -1 on error */
 476 cupsReadResponseData(
 477     http_t *http,                       /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 478     char   *buffer,                     /* I - Buffer to use */
 479     size_t length)                      /* I - Number of bytes to read */
 480 {
 481  /*
 482   * Get the default connection as needed...
 483   */
 484
 485   DEBUG_printf(("cupsReadResponseData(http=%p, buffer=%p, "
 486                 "length=" CUPS_LLFMT ")\n", http, buffer, CUPS_LLCAST length));
 487
 488   if (!http)
 489   {
 490     _cups_globals_t *cg = _cupsGlobals();
 491                                         /* Pointer to library globals */
 492
 493     if ((http = cg->http) == NULL)
 494     {
 495       _cupsSetError(IPP_INTERNAL_ERROR, _("No active connection"), 1);
 496       return (-1);
 497     }
 498   }
 499
 500  /*
 501   * Then read from the HTTP connection...
 502   */
 503
 504   return (httpRead2(http, buffer, length));
 505 }
 506
 507
 508 /*
 509  * 'cupsSendRequest()' - Send an IPP request.
 510  *
 511  * Use httpWrite() to write any additional data (document, PPD file, etc.)
 512  * for the request, cupsGetResponse() to get the IPP response, and httpRead()
 513  * to read any additional data following the response. Only one request can be
 514  * sent/queued at a time.
 515  *
 516  * Unlike cupsDoFileRequest(), cupsDoIORequest(), and cupsDoRequest(), the
 517  * request is not freed.
 518  *
 519  * @since CUPS 1.4@
 520  */
 521
 522 http_status_t                           /* O - Initial HTTP status */
 523 cupsSendRequest(http_t     *http,       /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 524                 ipp_t      *request,    /* I - IPP request */
 525                 const char *resource,   /* I - Resource path */
 526                 size_t     length)      /* I - Length of data to follow or @code CUPS_LENGTH_VARIABLE@ */
 527 {
 528   http_status_t status;                 /* Status of HTTP request */
 529   int           got_status;             /* Did we get the status? */
 530   ipp_state_t   state;                  /* State of IPP processing */
 531   http_status_t expect;                 /* Expect: header to use */
 532
 533
 534   DEBUG_printf(("cupsSendRequest(http=%p, request=%p(%s), resource=\"%s\", "
 535                 "length=" CUPS_LLFMT ")\n", http, request,
 536                 request ? ippOpString(request->request.op.operation_id) : "?",
 537                 resource ? resource : "(null)", CUPS_LLCAST length));
 538
 539  /*
 540   * Range check input...
 541   */
 542
 543   if (!request || !resource)
 544   {
 545     _cupsSetError(IPP_INTERNAL_ERROR, strerror(EINVAL), 0);
 546
 547     return (HTTP_ERROR);
 548   }
 549
 550  /*
 551   * Get the default connection as needed...
 552   */
 553
 554   if (!http)
 555     if ((http = _cupsConnect()) == NULL)
 556       return (HTTP_SERVICE_UNAVAILABLE);
 557
 558 #ifdef HAVE_SSL
 559  /*
 560   * See if we have an auth-info attribute and are communicating over
 561   * a non-local link.  If so, encrypt the link so that we can pass
 562   * the authentication information securely...
 563   */
 564
 565   if (ippFindAttribute(request, "auth-info", IPP_TAG_TEXT) &&
 566       !httpAddrLocalhost(http->hostaddr) && !http->tls &&
 567       httpEncryption(http, HTTP_ENCRYPT_REQUIRED))
 568     return (HTTP_ERROR);
 569 #endif /* HAVE_SSL */
 570
 571  /*
 572   * Loop until we can send the request without authorization problems.
 573   */
 574
 575   expect = HTTP_CONTINUE;
 576
 577   for (;;)
 578   {
 579     DEBUG_puts("cupsSendRequest: Setup...");
 580
 581    /*
 582     * Setup the HTTP variables needed...
 583     */
 584
 585     httpClearFields(http);
 586     httpSetLength(http, length);
 587     httpSetField(http, HTTP_FIELD_CONTENT_TYPE, "application/ipp");
 588     httpSetField(http, HTTP_FIELD_AUTHORIZATION, http->authstring);
 589     httpSetExpect(http, expect);
 590
 591     DEBUG_printf(("cupsSendRequest: authstring=\"%s\"\n", http->authstring));
 592
 593    /*
 594     * Try the request...
 595     */
 596
 597     DEBUG_puts("cupsSendRequest: Sending HTTP POST...");
 598
 599     if (httpPost(http, resource))
 600     {
 601       if (httpReconnect(http))
 602         return (HTTP_ERROR);
 603       else
 604         continue;
 605     }
 606
 607    /*
 608     * Send the IPP data...
 609     */
 610
 611     DEBUG_puts("cupsSendRequest: Writing IPP request...");
 612
 613     request->state = IPP_IDLE;
 614     status         = HTTP_CONTINUE;
 615     got_status     = 0;
 616
 617     while ((state = ippWrite(http, request)) != IPP_DATA)
 618       if (state == IPP_ERROR)
 619         break;
 620       else if (httpCheck(http))
 621       {
 622         got_status = 1;
 623
 624         if ((status = httpUpdate(http)) != HTTP_CONTINUE)
 625           break;
 626       }
 627
 628    /*
 629     * Wait up to 1 second to get the 100-continue response as needed...
 630     */
 631
 632     if (!got_status && expect == HTTP_CONTINUE)
 633     {
 634       DEBUG_puts("cupsSendRequest: Waiting for 100-continue...");
 635
 636       if (httpWait(http, 1000))
 637         status = httpUpdate(http);
 638       else
 639         status = HTTP_EXPECTATION_FAILED;
 640     }
 641     else if (httpCheck(http))
 642       status = httpUpdate(http);
 643
 644     DEBUG_printf(("cupsSendRequest: status=%d\n", status));
 645
 646    /*
 647     * Process the current HTTP status...
 648     */
 649
 650     switch (status)
 651     {
 652       case HTTP_ERROR :
 653       case HTTP_CONTINUE :
 654       case HTTP_OK :
 655           return (status);
 656
 657       case HTTP_UNAUTHORIZED :
 658           if (!cupsDoAuthentication(http, "POST", resource))
 659             if (httpReconnect(http))
 660               return (HTTP_ERROR);
 661
 662           return (status);
 663
 664 #ifdef HAVE_SSL
 665       case HTTP_UPGRADE_REQUIRED :
 666          /*
 667           * Flush any error message, reconnect, and then upgrade with
 668           * encryption...
 669           */
 670
 671           if (httpReconnect(http))
 672             return (HTTP_ERROR);
 673
 674           httpEncryption(http, HTTP_ENCRYPT_REQUIRED);
 675
 676           return (status);
 677 #endif /* HAVE_SSL */
 678
 679       case HTTP_EXPECTATION_FAILED :
 680          /*
 681           * Don't try using the Expect: header the next time around...
 682           */
 683
 684           expect = (http_status_t)0;
 685           break;
 686
 687       default :
 688          /*
 689           * Some other error...
 690           */
 691
 692           return (status);
 693     }
 694   }
 695 }
 696
 697
 698 /*
 699  * 'cupsWriteRequestData()' - Write additional data after an IPP request.
 700  *
 701  * This function is used after @link cupsSendRequest@ to provide a PPD and
 702  * after @link cupsStartDocument@ to provide a document file.
 703  *
 704  * @since CUPS 1.4@
 705  */
 706
 707 http_status_t                           /* O - @code HTTP_CONTINUE@ if OK or HTTP status on error */
 708 cupsWriteRequestData(
 709     http_t     *http,                   /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
 710     const char *buffer,                 /* I - Bytes to write */
 711     size_t     length)                  /* I - Number of bytes to write */
 712 {
 713  /*
 714   * Get the default connection as needed...
 715   */
 716
 717   DEBUG_printf(("cupsWriteRequestData(http=%p, buffer=%p, "
 718                 "length=" CUPS_LLFMT ")\n", http, buffer, CUPS_LLCAST length));
 719
 720   if (!http)
 721   {
 722     _cups_globals_t *cg = _cupsGlobals();
 723                                         /* Pointer to library globals */
 724
 725     if ((http = cg->http) == NULL)
 726     {
 727       _cupsSetError(IPP_INTERNAL_ERROR, _("No active connection"), 1);
 728       return (HTTP_ERROR);
 729     }
 730   }
 731
 732  /*
 733   * Then write to the HTTP connection...
 734   */
 735
 736   if (httpWrite2(http, buffer, length) < 0)
 737     return (HTTP_ERROR);
 738
 739  /*
 740   * Finally, check if we have any pending data from the server...
 741   */
 742
 743   if (httpCheck(http))
 744     return (httpUpdate(http));
 745   else
 746     return (HTTP_CONTINUE);
 747 }
 748
 749
 750 /*
 751  * '_cupsSetError()' - Set the last IPP status code and status-message.
 752  */
 753
 754 void
 755 _cupsSetError(ipp_status_t status,      /* I - IPP status code */
 756               const char   *message,    /* I - status-message value */
 757               int          localize)    /* I - Localize the message? */
 758 {
 759   _cups_globals_t       *cg;            /* Global data */
 760
 761
 762   if (!message && errno)
 763   {
 764     message  = strerror(errno);
 765     localize = 0;
 766   }
 767
 768   cg             = _cupsGlobals();
 769   cg->last_error = status;
 770
 771   if (cg->last_status_message)
 772   {
 773     _cupsStrFree(cg->last_status_message);
 774
 775     cg->last_status_message = NULL;
 776   }
 777
 778   if (message)
 779   {
 780     if (localize)
 781     {
 782      /*
 783       * Get the message catalog...
 784       */
 785
 786       if (!cg->lang_default)
 787         cg->lang_default = cupsLangDefault();
 788
 789       cg->last_status_message = _cupsStrAlloc(_cupsLangString(cg->lang_default,
 790                                                               message));
 791     }
 792     else
 793       cg->last_status_message = _cupsStrAlloc(message);
 794   }
 795
 796   DEBUG_printf(("_cupsSetError: last_error=%s, last_status_message=\"%s\"\n",
 797                 ippErrorString(cg->last_error),
 798                 cg->last_status_message ? cg->last_status_message : ""));
 799 }
 800
 801
 802 /*
 803  * '_cupsSetHTTPError()' - Set the last error using the HTTP status.
 804  */
 805
 806 void
 807 _cupsSetHTTPError(http_status_t status) /* I - HTTP status code */
 808 {
 809   switch (status)
 810   {
 811     case HTTP_NOT_FOUND :
 812         _cupsSetError(IPP_NOT_FOUND, httpStatus(status), 0);
 813         break;
 814
 815     case HTTP_UNAUTHORIZED :
 816         _cupsSetError(IPP_NOT_AUTHORIZED, httpStatus(status), 0);
 817         break;
 818
 819     case HTTP_FORBIDDEN :
 820         _cupsSetError(IPP_FORBIDDEN, httpStatus(status), 0);
 821         break;
 822
 823     case HTTP_BAD_REQUEST :
 824         _cupsSetError(IPP_BAD_REQUEST, httpStatus(status), 0);
 825         break;
 826
 827     case HTTP_REQUEST_TOO_LARGE :
 828         _cupsSetError(IPP_REQUEST_VALUE, httpStatus(status), 0);
 829         break;
 830
 831     case HTTP_NOT_IMPLEMENTED :
 832         _cupsSetError(IPP_OPERATION_NOT_SUPPORTED, httpStatus(status), 0);
 833         break;
 834
 835     case HTTP_NOT_SUPPORTED :
 836         _cupsSetError(IPP_VERSION_NOT_SUPPORTED, httpStatus(status), 0);
 837         break;
 838
 839     default :
 840         DEBUG_printf(("HTTP error %d mapped to IPP_SERVICE_UNAVAILABLE!\n",
 841                       status));
 842         _cupsSetError(IPP_SERVICE_UNAVAILABLE, httpStatus(status), 0);
 843         break;
 844   }
 845 }
 846
 847
 848 /*
 849  * End of "$Id: request.c 7460 2008-04-16 02:19:54Z mike $".
 850  */