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 "includes.h"
  22 #include "printing.h"
  23
  24 #ifdef HAVE_CUPS
  25 #include <cups/cups.h>
  26 #include <cups/language.h>
  27
  28
  29 /*
  30  * CUPS printing interface definitions...
  31  */
  32
  33 static int cups_job_delete(int snum, struct printjob *pjob);
  34 static int cups_job_pause(int snum, struct printjob *pjob);
  35 static int cups_job_resume(int snum, struct printjob *pjob);
  36 static int cups_job_submit(int snum, struct printjob *pjob);
  37 static int cups_queue_get(int snum, print_queue_struct **q,
  38                           print_status_struct *status);
  39 static int cups_queue_pause(int snum);
  40 static int cups_queue_resume(int snum);
  41
  42
  43 struct printif  cups_printif =
  44                 {
  45                   cups_queue_get,
  46                   cups_queue_pause,
  47                   cups_queue_resume,
  48                   cups_job_delete,
  49                   cups_job_pause,
  50                   cups_job_resume,
  51                   cups_job_submit,
  52                 };
  53
  54 /*
  55  * 'cups_passwd_cb()' - The CUPS password callback...
  56  */
  57
  58 static const char *                             /* O - Password or NULL */
  59 cups_passwd_cb(const char *prompt)      /* I - Prompt */
  60 {
  61  /*
  62   * Always return NULL to indicate that no password is available...
  63   */
  64
  65   return (NULL);
  66 }
  67
  68
  69 /*
  70  * 'cups_printer_fn()' - Call a function for every printer known to the
  71  *                       system.
  72  */
  73
  74 void cups_printer_fn(void (*fn)(char *, char *))
  75 {
  76         /* I - Function to call */
  77         http_t          *http;          /* HTTP connection to server */
  78         ipp_t           *request,       /* IPP Request */
  79                         *response;      /* IPP Response */
  80         ipp_attribute_t *attr;          /* Current attribute */
  81         cups_lang_t     *language;      /* Default language */
  82         char            *name,          /* printer-name attribute */
  83                         *make_model,    /* printer-make-and-model attribute */
  84                         *info;          /* printer-info attribute */
  85         static const char *requested[] =/* Requested attributes */
  86                         {
  87                           "printer-name",
  88                           "printer-make-and-model",
  89                           "printer-info"
  90                         };
  91
  92
  93         DEBUG(5,("cups_printer_fn(%p)\n", fn));
  94
  95        /*
  96         * Make sure we don't ask for passwords...
  97         */
  98
  99         cupsSetPasswordCB(cups_passwd_cb);
 100
 101        /*
 102         * Try to connect to the server...
 103         */
 104
 105         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 106         {
 107                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 108                          cupsServer(), strerror(errno)));
 109                 return;
 110         }
 111
 112        /*
 113         * Build a CUPS_GET_PRINTERS request, which requires the following
 114         * attributes:
 115         *
 116         *    attributes-charset
 117         *    attributes-natural-language
 118         *    requested-attributes
 119         */
 120
 121         request = ippNew();
 122
 123         request->request.op.operation_id = CUPS_GET_PRINTERS;
 124         request->request.op.request_id   = 1;
 125
 126         language = cupsLangDefault();
 127
 128         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 129                      "attributes-charset", NULL, cupsLangEncoding(language));
 130
 131         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 132                      "attributes-natural-language", NULL, language->language);
 133
 134         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 135                       "requested-attributes",
 136                       (sizeof(requested) / sizeof(requested[0])),
 137                       NULL, requested);
 138
 139        /*
 140         * Do the request and get back a response...
 141         */
 142
 143         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 144         {
 145                 DEBUG(0,("Unable to get printer list - %s\n",
 146                          ippErrorString(cupsLastError())));
 147                 httpClose(http);
 148                 return;
 149         }
 150
 151         for (attr = response->attrs; attr != NULL;)
 152         {
 153                /*
 154                 * Skip leading attributes until we hit a printer...
 155                 */
 156
 157                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 158                         attr = attr->next;
 159
 160                 if (attr == NULL)
 161                         break;
 162
 163                /*
 164                 * Pull the needed attributes from this printer...
 165                 */
 166
 167                 name       = NULL;
 168                 make_model = NULL;
 169                 info       = NULL;
 170
 171                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
 172                 {
 173                         if (strcmp(attr->name, "printer-name") == 0 &&
 174                             attr->value_tag == IPP_TAG_NAME)
 175                                 name = attr->values[0].string.text;
 176
 177                         if (strcmp(attr->name, "printer-make-and-model") == 0 &&
 178                             attr->value_tag == IPP_TAG_TEXT)
 179                                 make_model = attr->values[0].string.text;
 180
 181                         if (strcmp(attr->name, "printer-info") == 0 &&
 182                             attr->value_tag == IPP_TAG_TEXT)
 183                                 info = attr->values[0].string.text;
 184
 185                         attr = attr->next;
 186                 }
 187
 188                /*
 189                 * See if we have everything needed...
 190                 */
 191
 192                 if (name == NULL)
 193                         break;
 194
 195                 if (info == NULL || !info[0])
 196                         (*fn)(name, make_model);
 197                 else
 198                         (*fn)(name, info);
 199
 200
 201         }
 202
 203         ippDelete(response);
 204
 205
 206        /*
 207         * Build a CUPS_GET_CLASSES request, which requires the following
 208         * attributes:
 209         *
 210         *    attributes-charset
 211         *    attributes-natural-language
 212         *    requested-attributes
 213         */
 214
 215         request = ippNew();
 216
 217         request->request.op.operation_id = CUPS_GET_CLASSES;
 218         request->request.op.request_id   = 1;
 219
 220         language = cupsLangDefault();
 221
 222         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 223                      "attributes-charset", NULL, cupsLangEncoding(language));
 224
 225         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 226                      "attributes-natural-language", NULL, language->language);
 227
 228         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 229                       "requested-attributes",
 230                       (sizeof(requested) / sizeof(requested[0])),
 231                       NULL, requested);
 232
 233        /*
 234         * Do the request and get back a response...
 235         */
 236
 237         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 238         {
 239                 DEBUG(0,("Unable to get printer list - %s\n",
 240                          ippErrorString(cupsLastError())));
 241                 httpClose(http);
 242                 return;
 243         }
 244
 245         for (attr = response->attrs; attr != NULL;)
 246         {
 247                /*
 248                 * Skip leading attributes until we hit a printer...
 249                 */
 250
 251                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 252                         attr = attr->next;
 253
 254                 if (attr == NULL)
 255                         break;
 256
 257                /*
 258                 * Pull the needed attributes from this printer...
 259                 */
 260
 261                 name       = NULL;
 262                 make_model = NULL;
 263                 info       = NULL;
 264
 265                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER)
 266                 {
 267                         if (strcmp(attr->name, "printer-name") == 0 &&
 268                             attr->value_tag == IPP_TAG_NAME)
 269                                 name = attr->values[0].string.text;
 270
 271                         if (strcmp(attr->name, "printer-make-and-model") == 0 &&
 272                             attr->value_tag == IPP_TAG_TEXT)
 273                                 make_model = attr->values[0].string.text;
 274
 275                         if (strcmp(attr->name, "printer-info") == 0 &&
 276                             attr->value_tag == IPP_TAG_TEXT)
 277                                 info = attr->values[0].string.text;
 278
 279                         attr = attr->next;
 280                 }
 281
 282                /*
 283                 * See if we have everything needed...
 284                 */
 285
 286                 if (name == NULL)
 287                         break;
 288
 289                 if (info == NULL || !info[0])
 290                         (*fn)(name, make_model);
 291                 else
 292                         (*fn)(name, info);
 293
 294
 295         }
 296
 297         ippDelete(response);
 298
 299        /*
 300         * Close the connection to the server...
 301         */
 302
 303         httpClose(http);
 304 }
 305
 306
 307 /*
 308  * 'cups_printername_ok()' - Provide the equivalent of pcap_printername_ok()
 309  *                           for CUPS.
 310  * O - 1 if printer name OK
 311  * I - Name of printer
 312  */
 313 int cups_printername_ok(const char *name)
 314 {
 315         http_t          *http;          /* HTTP connection to server */
 316         ipp_t           *request,       /* IPP Request */
 317                         *response;      /* IPP Response */
 318         cups_lang_t     *language;      /* Default language */
 319         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 320
 321
 322         DEBUG(5,("cups_printername_ok(\"%s\")\n", name));
 323
 324        /*
 325         * Make sure we don't ask for passwords...
 326         */
 327
 328         cupsSetPasswordCB(cups_passwd_cb);
 329
 330        /*
 331         * Try to connect to the server...
 332         */
 333
 334         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 335         {
 336                 DEBUG(3,("Unable to connect to CUPS server %s - %s\n",
 337                          cupsServer(), strerror(errno)));
 338                 return (0);
 339         }
 340
 341        /*
 342         * Build an IPP_GET_PRINTER_ATTRS request, which requires the following
 343         * attributes:
 344         *
 345         *    attributes-charset
 346         *    attributes-natural-language
 347         *    requested-attributes
 348         *    printer-uri
 349         */
 350
 351         request = ippNew();
 352
 353         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
 354         request->request.op.request_id   = 1;
 355
 356         language = cupsLangDefault();
 357
 358         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 359                      "attributes-charset", NULL, cupsLangEncoding(language));
 360
 361         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 362                      "attributes-natural-language", NULL, language->language);
 363
 364         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 365                      "requested-attributes", NULL, "printer-uri");
 366
 367         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", name);
 368
 369         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 370                      "printer-uri", NULL, uri);
 371
 372        /*
 373         * Do the request and get back a response...
 374         */
 375
 376         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 377         {
 378                 DEBUG(3,("Unable to get printer status for %s - %s\n", name,
 379                          ippErrorString(cupsLastError())));
 380                 httpClose(http);
 381                 return (0);
 382         }
 383
 384         httpClose(http);
 385
 386         if (response->request.status.status_code >= IPP_OK_CONFLICT)
 387         {
 388                 DEBUG(3,("Unable to get printer status for %s - %s\n", name,
 389                          ippErrorString(response->request.status.status_code)));
 390                 ippDelete(response);
 391                 return (0);
 392         }
 393         else
 394         {
 395                 ippDelete(response);
 396                 return (1);
 397         }
 398 }
 399
 400
 401 /*
 402  * 'cups_job_delete()' - Delete a job.
 403  */
 404
 405 static int
 406 cups_job_delete(int snum, struct printjob *pjob)
 407 {
 408         int             ret;            /* Return value */
 409         http_t          *http;          /* HTTP connection to server */
 410         ipp_t           *request,       /* IPP Request */
 411                         *response;      /* IPP Response */
 412         cups_lang_t     *language;      /* Default language */
 413         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 414
 415
 416         DEBUG(5,("cups_job_delete(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 417
 418        /*
 419         * Make sure we don't ask for passwords...
 420         */
 421
 422         cupsSetPasswordCB(cups_passwd_cb);
 423
 424        /*
 425         * Try to connect to the server...
 426         */
 427
 428         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 429         {
 430                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 431                          cupsServer(), strerror(errno)));
 432                 return (1);
 433         }
 434
 435        /*
 436         * Build an IPP_CANCEL_JOB request, which requires the following
 437         * attributes:
 438         *
 439         *    attributes-charset
 440         *    attributes-natural-language
 441         *    job-uri
 442         *    requesting-user-name
 443         */
 444
 445         request = ippNew();
 446
 447         request->request.op.operation_id = IPP_CANCEL_JOB;
 448         request->request.op.request_id   = 1;
 449
 450         language = cupsLangDefault();
 451
 452         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 453                      "attributes-charset", NULL, cupsLangEncoding(language));
 454
 455         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 456                      "attributes-natural-language", NULL, language->language);
 457
 458         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 459
 460         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 461
 462         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 463                      NULL, pjob->user);
 464
 465        /*
 466         * Do the request and get back a response...
 467         */
 468
 469         ret = 1;
 470
 471         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 472         {
 473           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 474                 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 475                          ippErrorString(cupsLastError())));
 476           else
 477                 ret = 0;
 478
 479           ippDelete(response);
 480         }
 481         else
 482           DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 483                    ippErrorString(cupsLastError())));
 484
 485         httpClose(http);
 486
 487         return (ret);
 488 }
 489
 490
 491 /*
 492  * 'cups_job_pause()' - Pause a job.
 493  */
 494
 495 static int
 496 cups_job_pause(int snum, struct printjob *pjob)
 497 {
 498         int             ret;            /* Return value */
 499         http_t          *http;          /* HTTP connection to server */
 500         ipp_t           *request,       /* IPP Request */
 501                         *response;      /* IPP Response */
 502         cups_lang_t     *language;      /* Default language */
 503         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 504
 505
 506         DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 507
 508        /*
 509         * Make sure we don't ask for passwords...
 510         */
 511
 512         cupsSetPasswordCB(cups_passwd_cb);
 513
 514        /*
 515         * Try to connect to the server...
 516         */
 517
 518         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 519         {
 520                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 521                          cupsServer(), strerror(errno)));
 522                 return (1);
 523         }
 524
 525        /*
 526         * Build an IPP_HOLD_JOB request, which requires the following
 527         * attributes:
 528         *
 529         *    attributes-charset
 530         *    attributes-natural-language
 531         *    job-uri
 532         *    requesting-user-name
 533         */
 534
 535         request = ippNew();
 536
 537         request->request.op.operation_id = IPP_HOLD_JOB;
 538         request->request.op.request_id   = 1;
 539
 540         language = cupsLangDefault();
 541
 542         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 543                      "attributes-charset", NULL, cupsLangEncoding(language));
 544
 545         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 546                      "attributes-natural-language", NULL, language->language);
 547
 548         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 549
 550         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 551
 552         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 553                      NULL, pjob->user);
 554
 555        /*
 556         * Do the request and get back a response...
 557         */
 558
 559         ret = 1;
 560
 561         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 562         {
 563           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 564                 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 565                          ippErrorString(cupsLastError())));
 566           else
 567                 ret = 0;
 568
 569           ippDelete(response);
 570         }
 571         else
 572           DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 573                    ippErrorString(cupsLastError())));
 574
 575         httpClose(http);
 576
 577         return (ret);
 578 }
 579
 580
 581 /*
 582  * 'cups_job_resume()' - Resume a paused job.
 583  */
 584
 585 static int
 586 cups_job_resume(int snum, struct printjob *pjob)
 587 {
 588         int             ret;            /* Return value */
 589         http_t          *http;          /* HTTP connection to server */
 590         ipp_t           *request,       /* IPP Request */
 591                         *response;      /* IPP Response */
 592         cups_lang_t     *language;      /* Default language */
 593         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 594
 595
 596         DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 597
 598        /*
 599         * Make sure we don't ask for passwords...
 600         */
 601
 602         cupsSetPasswordCB(cups_passwd_cb);
 603
 604        /*
 605         * Try to connect to the server...
 606         */
 607
 608         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 609         {
 610                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 611                          cupsServer(), strerror(errno)));
 612                 return (1);
 613         }
 614
 615        /*
 616         * Build an IPP_RELEASE_JOB request, which requires the following
 617         * attributes:
 618         *
 619         *    attributes-charset
 620         *    attributes-natural-language
 621         *    job-uri
 622         *    requesting-user-name
 623         */
 624
 625         request = ippNew();
 626
 627         request->request.op.operation_id = IPP_RELEASE_JOB;
 628         request->request.op.request_id   = 1;
 629
 630         language = cupsLangDefault();
 631
 632         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 633                      "attributes-charset", NULL, cupsLangEncoding(language));
 634
 635         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 636                      "attributes-natural-language", NULL, language->language);
 637
 638         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 639
 640         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 641
 642         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 643                      NULL, pjob->user);
 644
 645        /*
 646         * Do the request and get back a response...
 647         */
 648
 649         ret = 1;
 650
 651         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL)
 652         {
 653           if (response->request.status.status_code >= IPP_OK_CONFLICT)
 654                 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 655                          ippErrorString(cupsLastError())));
 656           else
 657                 ret = 0;
 658
 659           ippDelete(response);
 660         }
 661         else
 662           DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 663                    ippErrorString(cupsLastError())));
 664
 665         httpClose(http);
 666
 667         return (ret);
 668 }
 669
 670
 671 /*
 672  * 'cups_job_submit()' - Submit a job for printing.
 673  */
 674
 675 static int
 676 cups_job_submit(int snum, struct printjob *pjob)
 677 {
 678         int             ret;            /* Return value */
 679         http_t          *http;          /* HTTP connection to server */
 680         ipp_t           *request,       /* IPP Request */
 681                         *response;      /* IPP Response */
 682         cups_lang_t     *language;      /* Default language */
 683         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 684         char            *clientname;    /* hostname of client for job-originating-host attribute */
 685         pstring         new_jobname;
 686
 687         DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 688
 689        /*
 690         * Make sure we don't ask for passwords...
 691         */
 692
 693         cupsSetPasswordCB(cups_passwd_cb);
 694
 695        /*
 696         * Try to connect to the server...
 697         */
 698
 699         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 700         {
 701                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 702                          cupsServer(), strerror(errno)));
 703                 return (1);
 704         }
 705
 706        /*
 707         * Build an IPP_PRINT_JOB request, which requires the following
 708         * attributes:
 709         *
 710         *    attributes-charset
 711         *    attributes-natural-language
 712         *    printer-uri
 713         *    requesting-user-name
 714         *    [document-data]
 715         */
 716
 717         request = ippNew();
 718
 719         request->request.op.operation_id = IPP_PRINT_JOB;
 720         request->request.op.request_id   = 1;
 721
 722         language = cupsLangDefault();
 723
 724         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 725                      "attributes-charset", NULL, cupsLangEncoding(language));
 726
 727         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 728                      "attributes-natural-language", NULL, language->language);
 729
 730         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
 731                  PRINTERNAME(snum));
 732
 733         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 734                      "printer-uri", NULL, uri);
 735
 736         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 737                      NULL, pjob->user);
 738
 739         clientname = client_name();
 740         if (strcmp(clientname, "UNKNOWN") == 0) {
 741                 clientname = client_addr();
 742         }
 743
 744         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 745                      "job-originating-host-name", NULL,
 746                       clientname);
 747
 748         pstr_sprintf(new_jobname,"%s%.8u %s", PRINT_SPOOL_PREFIX,
 749                 (unsigned int)pjob->smbjob, pjob->jobname);
 750
 751         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
 752                      new_jobname);
 753
 754        /*
 755         * Do the request and get back a response...
 756         */
 757
 758         slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
 759
 760         ret = 1;
 761         if ((response = cupsDoFileRequest(http, request, uri,
 762                                           pjob->filename)) != NULL)
 763         {
 764                 if (response->request.status.status_code >= IPP_OK_CONFLICT)
 765                         DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
 766                                  ippErrorString(cupsLastError())));
 767                 else
 768                         ret = 0;
 769
 770                 ippDelete(response);
 771         }
 772         else
 773                 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
 774                          ippErrorString(cupsLastError())));
 775
 776         httpClose(http);
 777
 778         if ( ret == 0 )
 779                 unlink(pjob->filename);
 780         /* else print_job_end will do it for us */
 781
 782         return (ret);
 783 }
 784
 785
 786 /*
 787  * 'cups_queue_get()' - Get all the jobs in the print queue.
 788  */
 789
 790 static int
 791 cups_queue_get(int snum, print_queue_struct **q, print_status_struct *status)
 792 {
 793         http_t          *http;          /* HTTP connection to server */
 794         ipp_t           *request,       /* IPP Request */
 795                         *response;      /* IPP Response */
 796         ipp_attribute_t *attr;          /* Current attribute */
 797         cups_lang_t     *language;      /* Default language */
 798         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 799         int             qcount,         /* Number of active queue entries */
 800                         qalloc;         /* Number of queue entries allocated */
 801         print_queue_struct *queue,      /* Queue entries */
 802                         *temp;          /* Temporary pointer for queue */
 803         const char      *user_name,     /* job-originating-user-name attribute */
 804                         *job_name;      /* job-name attribute */
 805         int             job_id;         /* job-id attribute */
 806         int             job_k_octets;   /* job-k-octets attribute */
 807         time_t          job_time;       /* time-at-creation attribute */
 808         ipp_jstate_t    job_status;     /* job-status attribute */
 809         int             job_priority;   /* job-priority attribute */
 810         static const char *jattrs[] =   /* Requested job attributes */
 811                         {
 812                           "job-id",
 813                           "job-k-octets",
 814                           "job-name",
 815                           "job-originating-user-name",
 816                           "job-priority",
 817                           "job-state",
 818                           "time-at-creation",
 819                         };
 820         static const char *pattrs[] =   /* Requested printer attributes */
 821                         {
 822                           "printer-state",
 823                           "printer-state-message"
 824                         };
 825
 826
 827         DEBUG(5,("cups_queue_get(%d, %p, %p)\n", snum, q, status));
 828
 829        /*
 830         * Make sure we don't ask for passwords...
 831         */
 832
 833         cupsSetPasswordCB(cups_passwd_cb);
 834
 835        /*
 836         * Try to connect to the server...
 837         */
 838
 839         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
 840         {
 841                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
 842                          cupsServer(), strerror(errno)));
 843                 return (0);
 844         }
 845
 846        /*
 847         * Generate the printer URI...
 848         */
 849
 850         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
 851                  PRINTERNAME(snum));
 852
 853        /*
 854         * Build an IPP_GET_JOBS request, which requires the following
 855         * attributes:
 856         *
 857         *    attributes-charset
 858         *    attributes-natural-language
 859         *    requested-attributes
 860         *    printer-uri
 861         */
 862
 863         request = ippNew();
 864
 865         request->request.op.operation_id = IPP_GET_JOBS;
 866         request->request.op.request_id   = 1;
 867
 868         language = cupsLangDefault();
 869
 870         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 871                      "attributes-charset", NULL, cupsLangEncoding(language));
 872
 873         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 874                      "attributes-natural-language", NULL, language->language);
 875
 876         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 877                       "requested-attributes",
 878                       (sizeof(jattrs) / sizeof(jattrs[0])),
 879                       NULL, jattrs);
 880
 881         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 882                      "printer-uri", NULL, uri);
 883
 884        /*
 885         * Do the request and get back a response...
 886         */
 887
 888         if ((response = cupsDoRequest(http, request, "/")) == NULL)
 889         {
 890                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 891                          ippErrorString(cupsLastError())));
 892                 httpClose(http);
 893                 return (0);
 894         }
 895
 896         if (response->request.status.status_code >= IPP_OK_CONFLICT)
 897         {
 898                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 899                          ippErrorString(response->request.status.status_code)));
 900                 ippDelete(response);
 901                 httpClose(http);
 902
 903                 return (0);
 904         }
 905
 906        /*
 907         * Process the jobs...
 908         */
 909
 910         qcount = 0;
 911         qalloc = 0;
 912         queue  = NULL;
 913
 914         for (attr = response->attrs; attr != NULL; attr = attr->next)
 915         {
 916                /*
 917                 * Skip leading attributes until we hit a job...
 918                 */
 919
 920                 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
 921                         attr = attr->next;
 922
 923                 if (attr == NULL)
 924                         break;
 925
 926                /*
 927                 * Allocate memory as needed...
 928                 */
 929                 if (qcount >= qalloc)
 930                 {
 931                         qalloc += 16;
 932
 933                         temp = Realloc(queue, sizeof(print_queue_struct) * qalloc);
 934
 935                         if (temp == NULL)
 936                         {
 937                                 DEBUG(0,("cups_queue_get: Not enough memory!"));
 938                                 ippDelete(response);
 939                                 httpClose(http);
 940
 941                                 SAFE_FREE(queue);
 942                                 return (0);
 943                         }
 944
 945                         queue = temp;
 946                 }
 947
 948                 temp = queue + qcount;
 949                 memset(temp, 0, sizeof(print_queue_struct));
 950
 951                /*
 952                 * Pull the needed attributes from this job...
 953                 */
 954
 955                 job_id       = 0;
 956                 job_priority = 50;
 957                 job_status   = IPP_JOB_PENDING;
 958                 job_time     = 0;
 959                 job_k_octets = 0;
 960                 user_name    = NULL;
 961                 job_name     = NULL;
 962
 963                 while (attr != NULL && attr->group_tag == IPP_TAG_JOB)
 964                 {
 965                         if (attr->name == NULL)
 966                         {
 967                                 attr = attr->next;
 968                                 break;
 969                         }
 970
 971                         if (strcmp(attr->name, "job-id") == 0 &&
 972                             attr->value_tag == IPP_TAG_INTEGER)
 973                                 job_id = attr->values[0].integer;
 974
 975                         if (strcmp(attr->name, "job-k-octets") == 0 &&
 976                             attr->value_tag == IPP_TAG_INTEGER)
 977                                 job_k_octets = attr->values[0].integer;
 978
 979                         if (strcmp(attr->name, "job-priority") == 0 &&
 980                             attr->value_tag == IPP_TAG_INTEGER)
 981                                 job_priority = attr->values[0].integer;
 982
 983                         if (strcmp(attr->name, "job-state") == 0 &&
 984                             attr->value_tag == IPP_TAG_ENUM)
 985                                 job_status = (ipp_jstate_t)(attr->values[0].integer);
 986
 987                         if (strcmp(attr->name, "time-at-creation") == 0 &&
 988                             attr->value_tag == IPP_TAG_INTEGER)
 989                                 job_time = attr->values[0].integer;
 990
 991                         if (strcmp(attr->name, "job-name") == 0 &&
 992                             attr->value_tag == IPP_TAG_NAME)
 993                                 job_name = attr->values[0].string.text;
 994
 995                         if (strcmp(attr->name, "job-originating-user-name") == 0 &&
 996                             attr->value_tag == IPP_TAG_NAME)
 997                                 user_name = attr->values[0].string.text;
 998
 999                         attr = attr->next;
1000                 }
1001
1002                /*
1003                 * See if we have everything needed...
1004                 */
1005
1006                 if (user_name == NULL || job_name == NULL || job_id == 0)
1007                 {
1008                   if (attr == NULL)
1009                     break;
1010                   else
1011                     continue;
1012                 }
1013
1014                 temp->job      = job_id;
1015                 temp->size     = job_k_octets * 1024;
1016                 temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
1017                                  job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
1018                                  job_status == IPP_JOB_HELD ? LPQ_PAUSED :
1019                                  LPQ_PRINTING;
1020                 temp->priority = job_priority;
1021                 temp->time     = job_time;
1022                 strncpy(temp->fs_user, user_name, sizeof(temp->fs_user) - 1);
1023                 strncpy(temp->fs_file, job_name, sizeof(temp->fs_file) - 1);
1024
1025                 qcount ++;
1026
1027                 if (attr == NULL)
1028                   break;
1029         }
1030
1031         ippDelete(response);
1032
1033        /*
1034         * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
1035         * following attributes:
1036         *
1037         *    attributes-charset
1038         *    attributes-natural-language
1039         *    requested-attributes
1040         *    printer-uri
1041         */
1042
1043         request = ippNew();
1044
1045         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1046         request->request.op.request_id   = 1;
1047
1048         language = cupsLangDefault();
1049
1050         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1051                      "attributes-charset", NULL, cupsLangEncoding(language));
1052
1053         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1054                      "attributes-natural-language", NULL, language->language);
1055
1056         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1057                       "requested-attributes",
1058                       (sizeof(pattrs) / sizeof(pattrs[0])),
1059                       NULL, pattrs);
1060
1061         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1062                      "printer-uri", NULL, uri);
1063
1064        /*
1065         * Do the request and get back a response...
1066         */
1067
1068         if ((response = cupsDoRequest(http, request, "/")) == NULL)
1069         {
1070                 DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
1071                          ippErrorString(cupsLastError())));
1072                 httpClose(http);
1073                 *q = queue;
1074                 return (qcount);
1075         }
1076
1077         if (response->request.status.status_code >= IPP_OK_CONFLICT)
1078         {
1079                 DEBUG(0,("Unable to get printer status for %s - %s\n", PRINTERNAME(snum),
1080                          ippErrorString(response->request.status.status_code)));
1081                 ippDelete(response);
1082                 httpClose(http);
1083                 *q = queue;
1084                 return (qcount);
1085         }
1086
1087        /*
1088         * Get the current printer status and convert it to the SAMBA values.
1089         */
1090
1091         if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL)
1092         {
1093                 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
1094                         status->status = LPSTAT_STOPPED;
1095                 else
1096                         status->status = LPSTAT_OK;
1097         }
1098
1099         if ((attr = ippFindAttribute(response, "printer-state-message",
1100                                      IPP_TAG_TEXT)) != NULL)
1101                 fstrcpy(status->message, attr->values[0].string.text);
1102
1103         ippDelete(response);
1104
1105        /*
1106         * Return the job queue...
1107         */
1108
1109         httpClose(http);
1110
1111         *q = queue;
1112         return (qcount);
1113 }
1114
1115
1116 /*
1117  * 'cups_queue_pause()' - Pause a print queue.
1118  */
1119
1120 static int
1121 cups_queue_pause(int snum)
1122 {
1123         extern userdom_struct current_user_info;
1124         int             ret;            /* Return value */
1125         http_t          *http;          /* HTTP connection to server */
1126         ipp_t           *request,       /* IPP Request */
1127                         *response;      /* IPP Response */
1128         cups_lang_t     *language;      /* Default language */
1129         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1130
1131
1132         DEBUG(5,("cups_queue_pause(%d)\n", snum));
1133
1134         /*
1135          * Make sure we don't ask for passwords...
1136          */
1137
1138         cupsSetPasswordCB(cups_passwd_cb);
1139
1140         /*
1141          * Try to connect to the server...
1142          */
1143
1144         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
1145         {
1146                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1147                          cupsServer(), strerror(errno)));
1148                 return (1);
1149         }
1150
1151         /*
1152          * Build an IPP_PAUSE_PRINTER request, which requires the following
1153          * attributes:
1154          *
1155          *    attributes-charset
1156          *    attributes-natural-language
1157          *    printer-uri
1158          *    requesting-user-name
1159          */
1160
1161         request = ippNew();
1162
1163         request->request.op.operation_id = IPP_PAUSE_PRINTER;
1164         request->request.op.request_id   = 1;
1165
1166         language = cupsLangDefault();
1167
1168         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1169                      "attributes-charset", NULL, cupsLangEncoding(language));
1170
1171         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1172                      "attributes-natural-language", NULL, language->language);
1173
1174         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1175                  PRINTERNAME(snum));
1176
1177         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1178
1179         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1180                      NULL, current_user_info.unix_name);
1181
1182        /*
1183         * Do the request and get back a response...
1184         */
1185
1186         ret = 1;
1187
1188         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
1189         {
1190           if (response->request.status.status_code >= IPP_OK_CONFLICT)
1191                 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1192                          ippErrorString(cupsLastError())));
1193           else
1194                 ret = 0;
1195
1196           ippDelete(response);
1197         }
1198         else
1199           DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1200                    ippErrorString(cupsLastError())));
1201
1202         httpClose(http);
1203
1204         return (ret);
1205 }
1206
1207
1208 /*
1209  * 'cups_queue_resume()' - Restart a print queue.
1210  */
1211
1212 static int
1213 cups_queue_resume(int snum)
1214 {
1215         extern userdom_struct current_user_info;
1216         int             ret;            /* Return value */
1217         http_t          *http;          /* HTTP connection to server */
1218         ipp_t           *request,       /* IPP Request */
1219                         *response;      /* IPP Response */
1220         cups_lang_t     *language;      /* Default language */
1221         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1222
1223
1224         DEBUG(5,("cups_queue_resume(%d)\n", snum));
1225
1226        /*
1227         * Make sure we don't ask for passwords...
1228         */
1229
1230         cupsSetPasswordCB(cups_passwd_cb);
1231
1232        /*
1233         * Try to connect to the server...
1234         */
1235
1236         if ((http = httpConnect(cupsServer(), ippPort())) == NULL)
1237         {
1238                 DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1239                          cupsServer(), strerror(errno)));
1240                 return (1);
1241         }
1242
1243        /*
1244         * Build an IPP_RESUME_PRINTER request, which requires the following
1245         * attributes:
1246         *
1247         *    attributes-charset
1248         *    attributes-natural-language
1249         *    printer-uri
1250         *    requesting-user-name
1251         */
1252
1253         request = ippNew();
1254
1255         request->request.op.operation_id = IPP_RESUME_PRINTER;
1256         request->request.op.request_id   = 1;
1257
1258         language = cupsLangDefault();
1259
1260         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1261                      "attributes-charset", NULL, cupsLangEncoding(language));
1262
1263         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1264                      "attributes-natural-language", NULL, language->language);
1265
1266         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1267                  PRINTERNAME(snum));
1268
1269         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1270
1271         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1272                      NULL, current_user_info.unix_name);
1273
1274        /*
1275         * Do the request and get back a response...
1276         */
1277
1278         ret = 1;
1279
1280         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL)
1281         {
1282           if (response->request.status.status_code >= IPP_OK_CONFLICT)
1283                 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1284                          ippErrorString(cupsLastError())));
1285           else
1286                 ret = 0;
1287
1288           ippDelete(response);
1289         }
1290         else
1291           DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1292                    ippErrorString(cupsLastError())));
1293
1294         httpClose(http);
1295
1296         return (ret);
1297 }
1298
1299
1300 #else
1301  /* this keeps fussy compilers happy */
1302  void print_cups_dummy(void) {}
1303 #endif /* HAVE_CUPS */