source3/printing/print_cups.c

   1 /*
   2  * Support code for the Common UNIX Printing System ("CUPS")
   3  *
   4  * Copyright 1999-2003 by Michael R Sweet.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "printing.h"
  22
  23 #ifdef HAVE_CUPS
  24 #include <cups/cups.h>
  25 #include <cups/language.h>
  26
  27
  28 /*
  29  * CUPS printing interface definitions...
  30  */
  31
  32 static int cups_job_delete(int snum, struct printjob *pjob);
  33 static int cups_job_pause(int snum, struct printjob *pjob);
  34 static int cups_job_resume(int snum, struct printjob *pjob);
  35 static int cups_job_submit(int snum, struct printjob *pjob);
  36 static int cups_queue_get(int snum, print_queue_struct **q,
  37                           print_status_struct *status);
  38 static int cups_queue_pause(int snum);
  39 static int cups_queue_resume(int snum);
  40
  41
  42 struct printif  cups_printif =
  43                 {
  44                   cups_queue_get,
  45                   cups_queue_pause,
  46                   cups_queue_resume,
  47                   cups_job_delete,
  48                   cups_job_pause,
  49                   cups_job_resume,
  50                   cups_job_submit,
  51                 };
  52
  53 /*
  54  * 'cups_passwd_cb()' - The CUPS password callback...
  55  */
  56
  57 static const char *                             /* O - Password or NULL */
  58 cups_passwd_cb(const char *prompt)      /* I - Prompt */
  59 {
  60  /*
  61   * Always return NULL to indicate that no password is available...
  62   */
  63
  64   return (NULL);
  65 }
  66
  67
  68 /*
  69  * 'cups_printer_fn()' - Call a function for every printer known to the
  70  *                       system.
  71  */
  72
  73 void cups_printer_fn(void (*fn)(char *, char *))
  74 {
  75         /* I - Function to call */
  76         http_t          *http;          /* HTTP connection to server */
  77         ipp_t           *request,       /* IPP Request */
  78                         *response;      /* IPP Response */
  79         ipp_attribute_t *attr;          /* Current attribute */
  80         cups_lang_t     *language;      /* Default language */
  81         char            *name,          /* printer-name attribute */
  82                         *make_model,    /* printer-make-and-model attribute */
  83                         *info;          /* printer-info attribute */
  84         static const char *requested[] =/* Requested attributes */
  85                         {
  86                           "printer-name",
  87                           "printer-make-and-model",
  88                           "printer-info"
  89                         };
  90
  91
  92         DEBUG(5,("cups_printer_fn(%p)\n", fn));
  93
  94        /*
  95         * Make sure we don't ask for passwords...
  96         */
  97
  98         cupsSetPasswordCB(cups_passwd_cb);
  99
 100        /*
 101         * Try to connect to the server...
 102         */
 103
 104         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 105         {
 106                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 107                          cupsServer(), strerror(errno)));
 108                 return;
 109         }
 110
 111        /*
 112         * Build a CUPS_GET_PRINTERS request, which requires the following
 113         * attributes:
 114         *
 115         *    attributes-charset
 116         *    attributes-natural-language
 117         *    requested-attributes
 118         */
 119
 120         request = ippNew();
 121
 122         request->request.op.operation_id = CUPS_GET_PRINTERS;
 123         request->request.op.request_id   = 1;
 124
 125         language = cupsLangDefault();
 126
 127         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 128                      "attributes-charset", NULL, cupsLangEncoding(language));
 129
 130         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 131                      "attributes-natural-language", NULL, language->language);
 132
 133         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 134                       "requested-attributes",
 135                       (sizeof(requested) / sizeof(requested[0])),
 136                       NULL, requested);
 137
 138        /*
 139         * Do the request and get back a response...
 140         */
 141
 142         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 143         {
 144                 DEBUG(0,("Unable to get printer list - %s\n",
 145                          ippErrorString(cupsLastError())));
 146                 httpClose(http);
 147                 return;
 148         }
 149
 150         for (attr = response->attrs; attr != NULL;)
 151         {
 152                /*
 153                 * Skip leading attributes until we hit a printer...
 154                 */
 155
 156                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 157                         attr = attr->next;
 158
 159                 if (attr == NULL)
 160                         break;
 161
 162                /*
 163                 * Pull the needed attributes from this printer...
 164                 */
 165
 166                 name       = NULL;
 167                 make_model = NULL;
 168                 info       = NULL;
 169
 170                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
 171                 {
 172                         if (strcmp(attr->name, "printer-name") == 0 &&
 173                             attr->value_tag == IPP_TAG_NAME)
 174                                 name = attr->values[0].string.text;
 175
 176                         if (strcmp(attr->name, "printer-make-and-model") == 0 &&
 177                             attr->value_tag == IPP_TAG_TEXT)
 178                                 make_model = attr->values[0].string.text;
 179
 180                         if (strcmp(attr->name, "printer-info") == 0 &&
 181                             attr->value_tag == IPP_TAG_TEXT)
 182                                 info = attr->values[0].string.text;
 183
 184                         attr = attr->next;
 185                 }
 186
 187                /*
 188                 * See if we have everything needed...
 189                 */
 190
 191                 if (name == NULL)
 192                         break;
 193
 194                 if (info == NULL || !info[0])
 195                         (*fn)(name, make_model);
 196                 else
 197                         (*fn)(name, info);
 198
 199
 200         }
 201
 202         ippDelete(response);
 203
 204
 205        /*
 206         * Build a CUPS_GET_CLASSES request, which requires the following
 207         * attributes:
 208         *
 209         *    attributes-charset
 210         *    attributes-natural-language
 211         *    requested-attributes
 212         */
 213
 214         request = ippNew();
 215
 216         request->request.op.operation_id = CUPS_GET_CLASSES;
 217         request->request.op.request_id   = 1;
 218
 219         language = cupsLangDefault();
 220
 221         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 222                      "attributes-charset", NULL, cupsLangEncoding(language));
 223
 224         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 225                      "attributes-natural-language", NULL, language->language);
 226
 227         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 228                       "requested-attributes",
 229                       (sizeof(requested) / sizeof(requested[0])),
 230                       NULL, requested);
 231
 232        /*
 233         * Do the request and get back a response...
 234         */
 235
 236         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 237         {
 238                 DEBUG(0,("Unable to get printer list - %s\n",
 239                          ippErrorString(cupsLastError())));
 240                 httpClose(http);
 241                 return;
 242         }
 243
 244         for (attr = response->attrs; attr != NULL;)
 245         {
 246                /*
 247                 * Skip leading attributes until we hit a printer...
 248                 */
 249
 250                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 251                         attr = attr->next;
 252
 253                 if (attr == NULL)
 254                         break;
 255
 256                /*
 257                 * Pull the needed attributes from this printer...
 258                 */
 259
 260                 name       = NULL;
 261                 make_model = NULL;
 262                 info       = NULL;
 263
 264                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
 265                 {
 266                         if (strcmp(attr->name, "printer-name") == 0 &&
 267                             attr->value_tag == IPP_TAG_NAME)
 268                                 name = attr->values[0].string.text;
 269
 270                         if (strcmp(attr->name, "printer-make-and-model") == 0 &&
 271                             attr->value_tag == IPP_TAG_TEXT)
 272                                 make_model = attr->values[0].string.text;
 273
 274                         if (strcmp(attr->name, "printer-info") == 0 &&
 275                             attr->value_tag == IPP_TAG_TEXT)
 276                                 info = attr->values[0].string.text;
 277
 278                         attr = attr->next;
 279                 }
 280
 281                /*
 282                 * See if we have everything needed...
 283                 */
 284
 285                 if (name == NULL)
 286                         break;
 287
 288                 if (info == NULL || !info[0])
 289                         (*fn)(name, make_model);
 290                 else
 291                         (*fn)(name, info);
 292
 293
 294         }
 295
 296         ippDelete(response);
 297
 298        /*
 299         * Close the connection to the server...
 300         */
 301
 302         httpClose(http);
 303 }
 304
 305
 306 /*
 307  * 'cups_printername_ok()' - Provide the equivalent of pcap_printername_ok()
 308  *                           for CUPS.
 309  * O - 1 if printer name OK
 310  * I - Name of printer
 311  */
 312 int cups_printername_ok(const char *name)
 313 {
 314         http_t          *http;          /* HTTP connection to server */
 315         ipp_t           *request,       /* IPP Request */
 316                         *response;      /* IPP Response */
 317         cups_lang_t     *language;      /* Default language */
 318         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 319
 320
 321         DEBUG(5,("cups_printername_ok(\"%s\")\n", name));
 322
 323        /*
 324         * Make sure we don't ask for passwords...
 325         */
 326
 327         cupsSetPasswordCB(cups_passwd_cb);
 328
 329        /*
 330         * Try to connect to the server...
 331         */
 332
 333         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 334         {
 335                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 336                          cupsServer(), strerror(errno)));
 337                 return (0);
 338         }
 339
 340        /*
 341         * Build an IPP_GET_PRINTER_ATTRS request, which requires the following
 342         * attributes:
 343         *
 344         *    attributes-charset
 345         *    attributes-natural-language
 346         *    requested-attributes
 347         *    printer-uri
 348         */
 349
 350         request = ippNew();
 351
 352         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
 353         request->request.op.request_id   = 1;
 354
 355         language = cupsLangDefault();
 356
 357         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 358                      "attributes-charset", NULL, cupsLangEncoding(language));
 359
 360         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 361                      "attributes-natural-language", NULL, language->language);
 362
 363         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 364                      "requested-attributes", NULL, "printer-uri");
 365
 366         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", name);
 367
 368         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 369                      "printer-uri", NULL, uri);
 370
 371        /*
 372         * Do the request and get back a response...
 373         */
 374
 375         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 376         {
 377                 DEBUG(0,("Unable to get printer status for %s - %s\n", name,
 378                          ippErrorString(cupsLastError())));
 379                 httpClose(http);
 380                 return (0);
 381         }
 382
 383         httpClose(http);
 384
 385         if (response->request.status.status_code >= IPP_OK_CONFLICT)
 386         {
 387                 DEBUG(0,("Unable to get printer status for %s - %s\n", name,
 388                          ippErrorString(response->request.status.status_code)));
 389                 ippDelete(response);
 390                 return (0);
 391         }
 392         else
 393         {
 394                 ippDelete(response);
 395                 return (1);
 396         }
 397 }
 398
 399
 400 /*
 401  * 'cups_job_delete()' - Delete a job.
 402  */
 403
 404 static int
 405 cups_job_delete(int snum, struct printjob *pjob)
 406 {
 407         int             ret;            /* Return value */
 408         http_t          *http;          /* HTTP connection to server */
 409         ipp_t           *request,       /* IPP Request */
 410                         *response;      /* IPP Response */
 411         cups_lang_t     *language;      /* Default language */
 412         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 413
 414
 415         DEBUG(5,("cups_job_delete(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 416
 417        /*
 418         * Make sure we don't ask for passwords...
 419         */
 420
 421         cupsSetPasswordCB(cups_passwd_cb);
 422
 423        /*
 424         * Try to connect to the server...
 425         */
 426
 427         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 428         {
 429                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 430                          cupsServer(), strerror(errno)));
 431                 return (1);
 432         }
 433
 434        /*
 435         * Build an IPP_CANCEL_JOB request, which requires the following
 436         * attributes:
 437         *
 438         *    attributes-charset
 439         *    attributes-natural-language
 440         *    job-uri
 441         *    requesting-user-name
 442         */
 443
 444         request = ippNew();
 445
 446         request->request.op.operation_id = IPP_CANCEL_JOB;
 447         request->request.op.request_id   = 1;
 448
 449         language = cupsLangDefault();
 450
 451         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 452                      "attributes-charset", NULL, cupsLangEncoding(language));
 453
 454         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 455                      "attributes-natural-language", NULL, language->language);
 456
 457         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 458
 459         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 460
 461         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 462                      NULL, pjob->user);
 463
 464        /*
 465         * Do the request and get back a response...
 466         */
 467
 468         ret = 1;
 469
 470         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 471         {
 472           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 473                 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 474                          ippErrorString(cupsLastError())));
 475           else
 476                 ret = 0;
 477
 478           ippDelete(response);
 479         }
 480         else
 481           DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 482                    ippErrorString(cupsLastError())));
 483
 484         httpClose(http);
 485
 486         return (ret);
 487 }
 488
 489
 490 /*
 491  * 'cups_job_pause()' - Pause a job.
 492  */
 493
 494 static int
 495 cups_job_pause(int snum, struct printjob *pjob)
 496 {
 497         int             ret;            /* Return value */
 498         http_t          *http;          /* HTTP connection to server */
 499         ipp_t           *request,       /* IPP Request */
 500                         *response;      /* IPP Response */
 501         cups_lang_t     *language;      /* Default language */
 502         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 503
 504
 505         DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 506
 507        /*
 508         * Make sure we don't ask for passwords...
 509         */
 510
 511         cupsSetPasswordCB(cups_passwd_cb);
 512
 513        /*
 514         * Try to connect to the server...
 515         */
 516
 517         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 518         {
 519                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 520                          cupsServer(), strerror(errno)));
 521                 return (1);
 522         }
 523
 524        /*
 525         * Build an IPP_HOLD_JOB request, which requires the following
 526         * attributes:
 527         *
 528         *    attributes-charset
 529         *    attributes-natural-language
 530         *    job-uri
 531         *    requesting-user-name
 532         */
 533
 534         request = ippNew();
 535
 536         request->request.op.operation_id = IPP_HOLD_JOB;
 537         request->request.op.request_id   = 1;
 538
 539         language = cupsLangDefault();
 540
 541         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 542                      "attributes-charset", NULL, cupsLangEncoding(language));
 543
 544         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 545                      "attributes-natural-language", NULL, language->language);
 546
 547         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 548
 549         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 550
 551         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 552                      NULL, pjob->user);
 553
 554        /*
 555         * Do the request and get back a response...
 556         */
 557
 558         ret = 1;
 559
 560         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 561         {
 562           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 563                 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 564                          ippErrorString(cupsLastError())));
 565           else
 566                 ret = 0;
 567
 568           ippDelete(response);
 569         }
 570         else
 571           DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 572                    ippErrorString(cupsLastError())));
 573
 574         httpClose(http);
 575
 576         return (ret);
 577 }
 578
 579
 580 /*
 581  * 'cups_job_resume()' - Resume a paused job.
 582  */
 583
 584 static int
 585 cups_job_resume(int snum, struct printjob *pjob)
 586 {
 587         int             ret;            /* Return value */
 588         http_t          *http;          /* HTTP connection to server */
 589         ipp_t           *request,       /* IPP Request */
 590                         *response;      /* IPP Response */
 591         cups_lang_t     *language;      /* Default language */
 592         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 593
 594
 595         DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 596
 597        /*
 598         * Make sure we don't ask for passwords...
 599         */
 600
 601         cupsSetPasswordCB(cups_passwd_cb);
 602
 603        /*
 604         * Try to connect to the server...
 605         */
 606
 607         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 608         {
 609                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 610                          cupsServer(), strerror(errno)));
 611                 return (1);
 612         }
 613
 614        /*
 615         * Build an IPP_RELEASE_JOB request, which requires the following
 616         * attributes:
 617         *
 618         *    attributes-charset
 619         *    attributes-natural-language
 620         *    job-uri
 621         *    requesting-user-name
 622         */
 623
 624         request = ippNew();
 625
 626         request->request.op.operation_id = IPP_RELEASE_JOB;
 627         request->request.op.request_id   = 1;
 628
 629         language = cupsLangDefault();
 630
 631         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 632                      "attributes-charset", NULL, cupsLangEncoding(language));
 633
 634         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 635                      "attributes-natural-language", NULL, language->language);
 636
 637         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 638
 639         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 640
 641         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 642                      NULL, pjob->user);
 643
 644        /*
 645         * Do the request and get back a response...
 646         */
 647
 648         ret = 1;
 649
 650         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 651         {
 652           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 653                 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 654                          ippErrorString(cupsLastError())));
 655           else
 656                 ret = 0;
 657
 658           ippDelete(response);
 659         }
 660         else
 661           DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 662                    ippErrorString(cupsLastError())));
 663
 664         httpClose(http);
 665
 666         return (ret);
 667 }
 668
 669
 670 /*
 671  * 'cups_job_submit()' - Submit a job for printing.
 672  */
 673
 674 static int
 675 cups_job_submit(int snum, struct printjob *pjob)
 676 {
 677         int             ret;            /* Return value */
 678         http_t          *http;          /* HTTP connection to server */
 679         ipp_t           *request,       /* IPP Request */
 680                         *response;      /* IPP Response */
 681         cups_lang_t     *language;      /* Default language */
 682         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 683
 684
 685         DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 686
 687        /*
 688         * Make sure we don't ask for passwords...
 689         */
 690
 691         cupsSetPasswordCB(cups_passwd_cb);
 692
 693        /*
 694         * Try to connect to the server...
 695         */
 696
 697         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 698         {
 699                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 700                          cupsServer(), strerror(errno)));
 701                 return (1);
 702         }
 703
 704        /*
 705         * Build an IPP_PRINT_JOB request, which requires the following
 706         * attributes:
 707         *
 708         *    attributes-charset
 709         *    attributes-natural-language
 710         *    printer-uri
 711         *    requesting-user-name
 712         *    [document-data]
 713         */
 714
 715         request = ippNew();
 716
 717         request->request.op.operation_id = IPP_PRINT_JOB;
 718         request->request.op.request_id   = 1;
 719
 720         language = cupsLangDefault();
 721
 722         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 723                      "attributes-charset", NULL, cupsLangEncoding(language));
 724
 725         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 726                      "attributes-natural-language", NULL, language->language);
 727
 728         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
 729                  PRINTERNAME(snum));
 730
 731         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 732                      "printer-uri", NULL, uri);
 733
 734         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 735                      NULL, pjob->user);
 736
 737         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
 738                      pjob->jobname);
 739
 740        /*
 741         * Do the request and get back a response...
 742         */
 743
 744         slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
 745
 746         ret = 1;
 747         if ((response = cupsDoFileRequest(http, request, uri,
 748                                           pjob->filename)) != NULL)
 749         {
 750                 if (response->request.status.status_code >= IPP_OK_CONFLICT)
 751                         DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
 752                                  ippErrorString(cupsLastError())));
 753                 else
 754                         ret = 0;
 755
 756                 ippDelete(response);
 757         }
 758         else
 759                 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
 760                          ippErrorString(cupsLastError())));
 761
 762         httpClose(http);
 763
 764         if ( ret == 0 )
 765                 unlink(pjob->filename);
 766         /* else print_job_end will do it for us */
 767
 768         return (ret);
 769 }
 770
 771
 772 /*
 773  * 'cups_queue_get()' - Get all the jobs in the print queue.
 774  */
 775
 776 static int
 777 cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
 778 {
 779         http_t          *http;          /* HTTP connection to server */
 780         ipp_t           *request,       /* IPP Request */
 781                         *response;      /* IPP Response */
 782         ipp_attribute_t *attr;          /* Current attribute */
 783         cups_lang_t     *language;      /* Default language */
 784         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 785         int             qcount,         /* Number of active queue entries */
 786                         qalloc;         /* Number of queue entries allocated */
 787         print_queue_struct *queue,      /* Queue entries */
 788                         *temp;          /* Temporary pointer for queue */
 789         const char      *user_name,     /* job-originating-user-name attribute */
 790                         *job_name;      /* job-name attribute */
 791         int             job_id;         /* job-id attribute */
 792         int             job_k_octets;   /* job-k-octets attribute */
 793         time_t          job_time;       /* time-at-creation attribute */
 794         ipp_jstate_t    job_status;     /* job-status attribute */
 795         int             job_priority;   /* job-priority attribute */
 796         static const char *jattrs[] =   /* Requested job attributes */
 797                         {
 798                           "job-id",
 799                           "job-k-octets",
 800                           "job-name",
 801                           "job-originating-user-name",
 802                           "job-priority",
 803                           "job-state",
 804                           "time-at-creation",
 805                         };
 806         static const char *pattrs[] =   /* Requested printer attributes */
 807                         {
 808                           "printer-state",
 809                           "printer-state-message"
 810                         };
 811
 812
 813         DEBUG(5,("cups_queue_get(%d, %p, %p)\n", snum, q, status));
 814
 815        /*
 816         * Make sure we don't ask for passwords...
 817         */
 818
 819         cupsSetPasswordCB(cups_passwd_cb);
 820
 821        /*
 822         * Try to connect to the server...
 823         */
 824
 825         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 826         {
 827                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 828                          cupsServer(), strerror(errno)));
 829                 return (0);
 830         }
 831
 832        /*
 833         * Generate the printer URI...
 834         */
 835
 836         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
 837                  PRINTERNAME(snum));
 838
 839        /*
 840         * Build an IPP_GET_JOBS request, which requires the following
 841         * attributes:
 842         *
 843         *    attributes-charset
 844         *    attributes-natural-language
 845         *    requested-attributes
 846         *    printer-uri
 847         */
 848
 849         request = ippNew();
 850
 851         request->request.op.operation_id = IPP_GET_JOBS;
 852         request->request.op.request_id   = 1;
 853
 854         language = cupsLangDefault();
 855
 856         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 857                      "attributes-charset", NULL, cupsLangEncoding(language));
 858
 859         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 860                      "attributes-natural-language", NULL, language->language);
 861
 862         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 863                       "requested-attributes",
 864                       (sizeof(jattrs) / sizeof(jattrs[0])),
 865                       NULL, jattrs);
 866
 867         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 868                      "printer-uri", NULL, uri);
 869
 870        /*
 871         * Do the request and get back a response...
 872         */
 873
 874         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 875         {
 876                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 877                          ippErrorString(cupsLastError())));
 878                 httpClose(http);
 879                 return (0);
 880         }
 881
 882         if (response->request.status.status_code >= IPP_OK_CONFLICT)
 883         {
 884                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 885                          ippErrorString(response->request.status.status_code)));
 886                 ippDelete(response);
 887                 httpClose(http);
 888
 889                 return (0);
 890         }
 891
 892        /*
 893         * Process the jobs...
 894         */
 895
 896         qcount = 0;
 897         qalloc = 0;
 898         queue  = NULL;
 899
 900         for (attr = response->attrs; attr != NULL; attr = attr->next)
 901         {
 902                /*
 903                 * Skip leading attributes until we hit a job...
 904                 */
 905
 906                 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
 907                         attr = attr->next;
 908
 909                 if (attr == NULL)
 910                         break;
 911
 912                /*
 913                 * Allocate memory as needed...
 914                 */
 915                 if (qcount >= qalloc)
 916                 {
 917                         qalloc += 16;
 918
 919                         temp = Realloc(queue, sizeof(print_queue_struct) * qalloc);
 920
 921                         if (temp == NULL)
 922                         {
 923                                 DEBUG(0,("cups_queue_get: Not enough memory!"));
 924                                 ippDelete(response);
 925                                 httpClose(http);
 926
 927                                 SAFE_FREE(queue);
 928                                 return (0);
 929                         }
 930
 931                         queue = temp;
 932                 }
 933
 934                 temp = queue + qcount;
 935                 memset(temp, 0, sizeof(print_queue_struct));
 936
 937                /*
 938                 * Pull the needed attributes from this job...
 939                 */
 940
 941                 job_id       = 0;
 942                 job_priority = 50;
 943                 job_status   = IPP_JOB_PENDING;
 944                 job_time     = 0;
 945                 job_k_octets = 0;
 946                 user_name    = NULL;
 947                 job_name     = NULL;
 948
 949                 while (attr != NULL && attr->group_tag == IPP_TAG_JOB)
 950                 {
 951                         if (attr->name == NULL)
 952                         {
 953                                 attr = attr->next;
 954                                 break;
 955                         }
 956
 957                         if (strcmp(attr->name, "job-id") == 0 &&
 958                             attr->value_tag == IPP_TAG_INTEGER)
 959                                 job_id = attr->values[0].integer;
 960
 961                         if (strcmp(attr->name, "job-k-octets") == 0 &&
 962                             attr->value_tag == IPP_TAG_INTEGER)
 963                                 job_k_octets = attr->values[0].integer;
 964
 965                         if (strcmp(attr->name, "job-priority") == 0 &&
 966                             attr->value_tag == IPP_TAG_INTEGER)
 967                                 job_priority = attr->values[0].integer;
 968
 969                         if (strcmp(attr->name, "job-state") == 0 &&
 970                             attr->value_tag == IPP_TAG_ENUM)
 971                                 job_status = (ipp_jstate_t)(attr->values[0].integer);
 972
 973                         if (strcmp(attr->name, "time-at-creation") == 0 &&
 974                             attr->value_tag == IPP_TAG_INTEGER)
 975                                 job_time = attr->values[0].integer;
 976
 977                         if (strcmp(attr->name, "job-name") == 0 &&
 978                             attr->value_tag == IPP_TAG_NAME)
 979                                 job_name = attr->values[0].string.text;
 980
 981                         if (strcmp(attr->name, "job-originating-user-name") == 0 &&
 982                             attr->value_tag == IPP_TAG_NAME)
 983                                 user_name = attr->values[0].string.text;
 984
 985                         attr = attr->next;
 986                 }
 987
 988                /*
 989                 * See if we have everything needed...
 990                 */
 991
 992                 if (user_name == NULL || job_name == NULL || job_id == 0)
 993                 {
 994                   if (attr == NULL)
 995                     break;
 996                   else
 997                     continue;
 998                 }
 999
1000                 temp->job      = job_id;
1001                 temp->size     = job_k_octets * 1024;
1002                 temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
1003                                  job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
1004                                  job_status == IPP_JOB_HELD ? LPQ_PAUSED :
1005                                  LPQ_PRINTING;
1006                 temp->priority = job_priority;
1007                 temp->time     = job_time;
1008                 strncpy(temp->fs_user, user_name, sizeof(temp->fs_user) - 1);
1009                 strncpy(temp->fs_file, job_name, sizeof(temp->fs_file) - 1);
1010
1011                 qcount ++;
1012
1013                 if (attr == NULL)
1014                   break;
1015         }
1016
1017         ippDelete(response);
1018
1019        /*
1020         * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
1021         * following attributes:
1022         *
1023         *    attributes-charset
1024         *    attributes-natural-language
1025         *    requested-attributes
1026         *    printer-uri
1027         */
1028
1029         request = ippNew();
1030
1031         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1032         request->request.op.request_id   = 1;
1033
1034         language = cupsLangDefault();
1035
1036         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1037                      "attributes-charset", NULL, cupsLangEncoding(language));
1038
1039         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1040                      "attributes-natural-language", NULL, language->language);
1041
1042         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1043                       "requested-attributes",
1044                       (sizeof(pattrs) / sizeof(pattrs[0])),
1045                       NULL, pattrs);
1046
1047         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1048                      "printer-uri", NULL, uri);
1049
1050        /*
1051         * Do the request and get back a response...
1052         */
1053
1054         if ((response = cupsDoRequest(http, request, "/")) == NULL)
1055         {
1056                 DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
1057                          ippErrorString(cupsLastError())));
1058                 httpClose(http);
1059                 *q = queue;
1060                 return (qcount);
1061         }
1062
1063         if (response->request.status.status_code >= IPP_OK_CONFLICT)
1064         {
1065                 DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
1066                          ippErrorString(response->request.status.status_code)));
1067                 ippDelete(response);
1068                 httpClose(http);
1069                 *q = queue;
1070                 return (qcount);
1071         }
1072
1073        /*
1074         * Get the current printer status and convert it to the SAMBA values.
1075         */
1076
1077         if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL)
1078         {
1079                 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
1080                         status->status = LPSTAT_STOPPED;
1081                 else
1082                         status->status = LPSTAT_OK;
1083         }
1084
1085         if ((attr = ippFindAttribute(response, "printer-state-message",
1086                                      IPP_TAG_TEXT)) != NULL)
1087                 fstrcpy(status->message, attr->values[0].string.text);
1088
1089         ippDelete(response);
1090
1091        /*
1092         * Return the job queue...
1093         */
1094
1095         httpClose(http);
1096
1097         *q = queue;
1098         return (qcount);
1099 }
1100
1101
1102 /*
1103  * 'cups_queue_pause()' - Pause a print queue.
1104  */
1105
1106 static int
1107 cups_queue_pause(int snum)
1108 {
1109         extern userdom_struct current_user_info;
1110         int             ret;            /* Return value */
1111         http_t          *http;          /* HTTP connection to server */
1112         ipp_t           *request,       /* IPP Request */
1113                         *response;      /* IPP Response */
1114         cups_lang_t     *language;      /* Default language */
1115         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1116
1117
1118         DEBUG(5,("cups_queue_pause(%d)\n", snum));
1119
1120         /*
1121          * Make sure we don't ask for passwords...
1122          */
1123
1124         cupsSetPasswordCB(cups_passwd_cb);
1125
1126         /*
1127          * Try to connect to the server...
1128          */
1129
1130         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
1131         {
1132                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1133                          cupsServer(), strerror(errno)));
1134                 return (1);
1135         }
1136
1137         /*
1138          * Build an IPP_PAUSE_PRINTER request, which requires the following
1139          * attributes:
1140          *
1141          *    attributes-charset
1142          *    attributes-natural-language
1143          *    printer-uri
1144          *    requesting-user-name
1145          */
1146
1147         request = ippNew();
1148
1149         request->request.op.operation_id = IPP_PAUSE_PRINTER;
1150         request->request.op.request_id   = 1;
1151
1152         language = cupsLangDefault();
1153
1154         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1155                      "attributes-charset", NULL, cupsLangEncoding(language));
1156
1157         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1158                      "attributes-natural-language", NULL, language->language);
1159
1160         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1161                  PRINTERNAME(snum));
1162
1163         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1164
1165         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1166                      NULL, current_user_info.unix_name);
1167
1168        /*
1169         * Do the request and get back a response...
1170         */
1171
1172         ret = 1;
1173
1174         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
1175         {
1176           if (response->request.status.status_code >= IPP_OK_CONFLICT)
1177                 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1178                          ippErrorString(cupsLastError())));
1179           else
1180                 ret = 0;
1181
1182           ippDelete(response);
1183         }
1184         else
1185           DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1186                    ippErrorString(cupsLastError())));
1187
1188         httpClose(http);
1189
1190         return (ret);
1191 }
1192
1193
1194 /*
1195  * 'cups_queue_resume()' - Restart a print queue.
1196  */
1197
1198 static int
1199 cups_queue_resume(int snum)
1200 {
1201         extern userdom_struct current_user_info;
1202         int             ret;            /* Return value */
1203         http_t          *http;          /* HTTP connection to server */
1204         ipp_t           *request,       /* IPP Request */
1205                         *response;      /* IPP Response */
1206         cups_lang_t     *language;      /* Default language */
1207         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1208
1209
1210         DEBUG(5,("cups_queue_resume(%d)\n", snum));
1211
1212        /*
1213         * Make sure we don't ask for passwords...
1214         */
1215
1216         cupsSetPasswordCB(cups_passwd_cb);
1217
1218        /*
1219         * Try to connect to the server...
1220         */
1221
1222         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
1223         {
1224                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1225                          cupsServer(), strerror(errno)));
1226                 return (1);
1227         }
1228
1229        /*
1230         * Build an IPP_RESUME_PRINTER request, which requires the following
1231         * attributes:
1232         *
1233         *    attributes-charset
1234         *    attributes-natural-language
1235         *    printer-uri
1236         *    requesting-user-name
1237         */
1238
1239         request = ippNew();
1240
1241         request->request.op.operation_id = IPP_RESUME_PRINTER;
1242         request->request.op.request_id   = 1;
1243
1244         language = cupsLangDefault();
1245
1246         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1247                      "attributes-charset", NULL, cupsLangEncoding(language));
1248
1249         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1250                      "attributes-natural-language", NULL, language->language);
1251
1252         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1253                  PRINTERNAME(snum));
1254
1255         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1256
1257         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1258                      NULL, current_user_info.unix_name);
1259
1260        /*
1261         * Do the request and get back a response...
1262         */
1263
1264         ret = 1;
1265
1266         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
1267         {
1268           if (response->request.status.status_code >= IPP_OK_CONFLICT)
1269                 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1270                          ippErrorString(cupsLastError())));
1271           else
1272                 ret = 0;
1273
1274           ippDelete(response);
1275         }
1276         else
1277           DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1278                    ippErrorString(cupsLastError())));
1279
1280         httpClose(http);
1281
1282         return (ret);
1283 }
1284
1285
1286 #else
1287  /* this keeps fussy compilers happy */
1288  void print_cups_dummy(void) {}
1289 #endif /* HAVE_CUPS */