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 extern userdom_struct current_user_info;
  29
  30 /*
  31  * 'cups_passwd_cb()' - The CUPS password callback...
  32  */
  33
  34 static const char *                             /* O - Password or NULL */
  35 cups_passwd_cb(const char *prompt)      /* I - Prompt */
  36 {
  37         /*
  38          * Always return NULL to indicate that no password is available...
  39          */
  40
  41         return (NULL);
  42 }
  43
  44 static http_t *cups_connect(void)
  45 {
  46         http_t *http;
  47         char *server, *p;
  48         int port;
  49
  50         if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
  51                 server = smb_xstrdup(lp_cups_server());
  52         } else {
  53                 server = smb_xstrdup(cupsServer());
  54         }
  55
  56         p = strchr(server, ':');
  57         if (p) {
  58                 port = atoi(p+1);
  59                 *p = '\0';
  60         } else {
  61                 port = ippPort();
  62         }
  63
  64         DEBUG(10, ("connecting to cups server %s:%d\n",
  65                    server, port));
  66
  67         if ((http = httpConnect(server, port)) == NULL) {
  68                 DEBUG(0,("Unable to connect to CUPS server %s:%d - %s\n",
  69                          server, port, strerror(errno)));
  70                 SAFE_FREE(server);
  71                 return NULL;
  72         }
  73
  74         SAFE_FREE(server);
  75         return http;
  76 }
  77
  78 BOOL cups_cache_reload(void)
  79 {
  80         http_t          *http = NULL;           /* HTTP connection to server */
  81         ipp_t           *request = NULL,        /* IPP Request */
  82                         *response = NULL;       /* IPP Response */
  83         ipp_attribute_t *attr;          /* Current attribute */
  84         cups_lang_t     *language = NULL;       /* Default language */
  85         char            *name,          /* printer-name attribute */
  86                         *info;          /* printer-info attribute */
  87         static const char *requested[] =/* Requested attributes */
  88                         {
  89                           "printer-name",
  90                           "printer-info"
  91                         };
  92         BOOL ret = False;
  93
  94         DEBUG(5, ("reloading cups printcap cache\n"));
  95
  96        /*
  97         * Make sure we don't ask for passwords...
  98         */
  99
 100         cupsSetPasswordCB(cups_passwd_cb);
 101
 102        /*
 103         * Try to connect to the server...
 104         */
 105
 106         if ((http = cups_connect()) == NULL) {
 107                 goto out;
 108         }
 109
 110        /*
 111         * Build a CUPS_GET_PRINTERS request, which requires the following
 112         * attributes:
 113         *
 114         *    attributes-charset
 115         *    attributes-natural-language
 116         *    requested-attributes
 117         */
 118
 119         request = ippNew();
 120
 121         request->request.op.operation_id = CUPS_GET_PRINTERS;
 122         request->request.op.request_id   = 1;
 123
 124         language = cupsLangDefault();
 125
 126         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 127                      "attributes-charset", NULL, cupsLangEncoding(language));
 128
 129         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 130                      "attributes-natural-language", NULL, language->language);
 131
 132         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 133                       "requested-attributes",
 134                       (sizeof(requested) / sizeof(requested[0])),
 135                       NULL, requested);
 136
 137        /*
 138         * Do the request and get back a response...
 139         */
 140
 141         if ((response = cupsDoRequest(http, request, "/")) == NULL) {
 142                 DEBUG(0,("Unable to get printer list - %s\n",
 143                          ippErrorString(cupsLastError())));
 144                 goto out;
 145         }
 146
 147         for (attr = response->attrs; attr != NULL;) {
 148                /*
 149                 * Skip leading attributes until we hit a printer...
 150                 */
 151
 152                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 153                         attr = attr->next;
 154
 155                 if (attr == NULL)
 156                         break;
 157
 158                /*
 159                 * Pull the needed attributes from this printer...
 160                 */
 161
 162                 name       = NULL;
 163                 info       = NULL;
 164
 165                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
 166                         if (strcmp(attr->name, "printer-name") == 0 &&
 167                             attr->value_tag == IPP_TAG_NAME)
 168                                 name = attr->values[0].string.text;
 169
 170                         if (strcmp(attr->name, "printer-info") == 0 &&
 171                             attr->value_tag == IPP_TAG_TEXT)
 172                                 info = attr->values[0].string.text;
 173
 174                         attr = attr->next;
 175                 }
 176
 177                /*
 178                 * See if we have everything needed...
 179                 */
 180
 181                 if (name == NULL)
 182                         break;
 183
 184                 if (!pcap_cache_add(name, info)) {
 185                         goto out;
 186                 }
 187         }
 188
 189         ippDelete(response);
 190         response = NULL;
 191
 192        /*
 193         * Build a CUPS_GET_CLASSES request, which requires the following
 194         * attributes:
 195         *
 196         *    attributes-charset
 197         *    attributes-natural-language
 198         *    requested-attributes
 199         */
 200
 201         request = ippNew();
 202
 203         request->request.op.operation_id = CUPS_GET_CLASSES;
 204         request->request.op.request_id   = 1;
 205
 206         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 207                      "attributes-charset", NULL, cupsLangEncoding(language));
 208
 209         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 210                      "attributes-natural-language", NULL, language->language);
 211
 212         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 213                       "requested-attributes",
 214                       (sizeof(requested) / sizeof(requested[0])),
 215                       NULL, requested);
 216
 217        /*
 218         * Do the request and get back a response...
 219         */
 220
 221         if ((response = cupsDoRequest(http, request, "/")) == NULL) {
 222                 DEBUG(0,("Unable to get printer list - %s\n",
 223                          ippErrorString(cupsLastError())));
 224                 goto out;
 225         }
 226
 227         for (attr = response->attrs; attr != NULL;) {
 228                /*
 229                 * Skip leading attributes until we hit a printer...
 230                 */
 231
 232                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
 233                         attr = attr->next;
 234
 235                 if (attr == NULL)
 236                         break;
 237
 238                /*
 239                 * Pull the needed attributes from this printer...
 240                 */
 241
 242                 name       = NULL;
 243                 info       = NULL;
 244
 245                 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
 246                         if (strcmp(attr->name, "printer-name") == 0 &&
 247                             attr->value_tag == IPP_TAG_NAME)
 248                                 name = attr->values[0].string.text;
 249
 250                         if (strcmp(attr->name, "printer-info") == 0 &&
 251                             attr->value_tag == IPP_TAG_TEXT)
 252                                 info = attr->values[0].string.text;
 253
 254                         attr = attr->next;
 255                 }
 256
 257                /*
 258                 * See if we have everything needed...
 259                 */
 260
 261                 if (name == NULL)
 262                         break;
 263
 264                 if (!pcap_cache_add(name, info)) {
 265                         goto out;
 266                 }
 267         }
 268
 269         ret = True;
 270
 271  out:
 272         if (response)
 273                 ippDelete(response);
 274
 275         if (language)
 276                 cupsLangFree(language);
 277
 278         if (http)
 279                 httpClose(http);
 280
 281         return ret;
 282 }
 283
 284
 285 /*
 286  * 'cups_job_delete()' - Delete a job.
 287  */
 288
 289 static int cups_job_delete(const char *sharename, const char *lprm_command, struct printjob *pjob)
 290 {
 291         int             ret = 1;                /* Return value */
 292         http_t          *http = NULL;           /* HTTP connection to server */
 293         ipp_t           *request = NULL,        /* IPP Request */
 294                         *response = NULL;       /* IPP Response */
 295         cups_lang_t     *language = NULL;       /* Default language */
 296         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 297
 298
 299         DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));
 300
 301        /*
 302         * Make sure we don't ask for passwords...
 303         */
 304
 305         cupsSetPasswordCB(cups_passwd_cb);
 306
 307        /*
 308         * Try to connect to the server...
 309         */
 310
 311         if ((http = cups_connect()) == NULL) {
 312                 goto out;
 313         }
 314
 315        /*
 316         * Build an IPP_CANCEL_JOB request, which requires the following
 317         * attributes:
 318         *
 319         *    attributes-charset
 320         *    attributes-natural-language
 321         *    job-uri
 322         *    requesting-user-name
 323         */
 324
 325         request = ippNew();
 326
 327         request->request.op.operation_id = IPP_CANCEL_JOB;
 328         request->request.op.request_id   = 1;
 329
 330         language = cupsLangDefault();
 331
 332         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 333                      "attributes-charset", NULL, cupsLangEncoding(language));
 334
 335         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 336                      "attributes-natural-language", NULL, language->language);
 337
 338         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 339
 340         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 341
 342         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 343                      NULL, pjob->user);
 344
 345        /*
 346         * Do the request and get back a response...
 347         */
 348
 349         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
 350                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 351                         DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 352                                 ippErrorString(cupsLastError())));
 353                 } else {
 354                         ret = 0;
 355                 }
 356         } else {
 357                 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
 358                         ippErrorString(cupsLastError())));
 359         }
 360
 361  out:
 362         if (response)
 363                 ippDelete(response);
 364
 365         if (language)
 366                 cupsLangFree(language);
 367
 368         if (http)
 369                 httpClose(http);
 370
 371         return ret;
 372 }
 373
 374
 375 /*
 376  * 'cups_job_pause()' - Pause a job.
 377  */
 378
 379 static int cups_job_pause(int snum, struct printjob *pjob)
 380 {
 381         int             ret = 1;                /* Return value */
 382         http_t          *http = NULL;           /* HTTP connection to server */
 383         ipp_t           *request = NULL,        /* IPP Request */
 384                         *response = NULL;       /* IPP Response */
 385         cups_lang_t     *language = NULL;       /* Default language */
 386         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 387
 388
 389         DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 390
 391        /*
 392         * Make sure we don't ask for passwords...
 393         */
 394
 395         cupsSetPasswordCB(cups_passwd_cb);
 396
 397        /*
 398         * Try to connect to the server...
 399         */
 400
 401         if ((http = cups_connect()) == NULL) {
 402                 goto out;
 403         }
 404
 405        /*
 406         * Build an IPP_HOLD_JOB request, which requires the following
 407         * attributes:
 408         *
 409         *    attributes-charset
 410         *    attributes-natural-language
 411         *    job-uri
 412         *    requesting-user-name
 413         */
 414
 415         request = ippNew();
 416
 417         request->request.op.operation_id = IPP_HOLD_JOB;
 418         request->request.op.request_id   = 1;
 419
 420         language = cupsLangDefault();
 421
 422         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 423                      "attributes-charset", NULL, cupsLangEncoding(language));
 424
 425         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 426                      "attributes-natural-language", NULL, language->language);
 427
 428         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 429
 430         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 431
 432         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 433                      NULL, pjob->user);
 434
 435        /*
 436         * Do the request and get back a response...
 437         */
 438
 439         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
 440                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 441                         DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 442                                 ippErrorString(cupsLastError())));
 443                 } else {
 444                         ret = 0;
 445                 }
 446         } else {
 447                 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
 448                         ippErrorString(cupsLastError())));
 449         }
 450
 451  out:
 452         if (response)
 453                 ippDelete(response);
 454
 455         if (language)
 456                 cupsLangFree(language);
 457
 458         if (http)
 459                 httpClose(http);
 460
 461         return ret;
 462 }
 463
 464
 465 /*
 466  * 'cups_job_resume()' - Resume a paused job.
 467  */
 468
 469 static int cups_job_resume(int snum, struct printjob *pjob)
 470 {
 471         int             ret = 1;                /* Return value */
 472         http_t          *http = NULL;           /* HTTP connection to server */
 473         ipp_t           *request = NULL,        /* IPP Request */
 474                         *response = NULL;       /* IPP Response */
 475         cups_lang_t     *language = NULL;       /* Default language */
 476         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 477
 478
 479         DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 480
 481        /*
 482         * Make sure we don't ask for passwords...
 483         */
 484
 485         cupsSetPasswordCB(cups_passwd_cb);
 486
 487        /*
 488         * Try to connect to the server...
 489         */
 490
 491         if ((http = cups_connect()) == NULL) {
 492                 goto out;
 493         }
 494
 495        /*
 496         * Build an IPP_RELEASE_JOB request, which requires the following
 497         * attributes:
 498         *
 499         *    attributes-charset
 500         *    attributes-natural-language
 501         *    job-uri
 502         *    requesting-user-name
 503         */
 504
 505         request = ippNew();
 506
 507         request->request.op.operation_id = IPP_RELEASE_JOB;
 508         request->request.op.request_id   = 1;
 509
 510         language = cupsLangDefault();
 511
 512         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 513                      "attributes-charset", NULL, cupsLangEncoding(language));
 514
 515         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 516                      "attributes-natural-language", NULL, language->language);
 517
 518         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
 519
 520         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
 521
 522         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 523                      NULL, pjob->user);
 524
 525        /*
 526         * Do the request and get back a response...
 527         */
 528
 529         if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
 530                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 531                         DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 532                                 ippErrorString(cupsLastError())));
 533                 } else {
 534                         ret = 0;
 535                 }
 536         } else {
 537                 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
 538                         ippErrorString(cupsLastError())));
 539         }
 540
 541  out:
 542         if (response)
 543                 ippDelete(response);
 544
 545         if (language)
 546                 cupsLangFree(language);
 547
 548         if (http)
 549                 httpClose(http);
 550
 551         return ret;
 552 }
 553
 554
 555 /*
 556  * 'cups_job_submit()' - Submit a job for printing.
 557  */
 558
 559 static int cups_job_submit(int snum, struct printjob *pjob)
 560 {
 561         int             ret = 1;                /* Return value */
 562         http_t          *http = NULL;           /* HTTP connection to server */
 563         ipp_t           *request = NULL,        /* IPP Request */
 564                         *response = NULL;       /* IPP Response */
 565         cups_lang_t     *language = NULL;       /* Default language */
 566         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 567         char            *clientname = NULL;     /* hostname of client for job-originating-host attribute */
 568         pstring         new_jobname;
 569         int             num_options = 0;
 570         cups_option_t   *options = NULL;
 571
 572         DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
 573
 574        /*
 575         * Make sure we don't ask for passwords...
 576         */
 577
 578         cupsSetPasswordCB(cups_passwd_cb);
 579
 580        /*
 581         * Try to connect to the server...
 582         */
 583
 584         if ((http = cups_connect()) == NULL) {
 585                 goto out;
 586         }
 587
 588        /*
 589         * Build an IPP_PRINT_JOB request, which requires the following
 590         * attributes:
 591         *
 592         *    attributes-charset
 593         *    attributes-natural-language
 594         *    printer-uri
 595         *    requesting-user-name
 596         *    [document-data]
 597         */
 598
 599         request = ippNew();
 600
 601         request->request.op.operation_id = IPP_PRINT_JOB;
 602         request->request.op.request_id   = 1;
 603
 604         language = cupsLangDefault();
 605
 606         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 607                      "attributes-charset", NULL, cupsLangEncoding(language));
 608
 609         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 610                      "attributes-natural-language", NULL, language->language);
 611
 612         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
 613                  PRINTERNAME(snum));
 614
 615         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 616                      "printer-uri", NULL, uri);
 617
 618         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
 619                      NULL, pjob->user);
 620
 621         clientname = client_name();
 622         if (strcmp(clientname, "UNKNOWN") == 0) {
 623                 clientname = client_addr();
 624         }
 625
 626         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 627                      "job-originating-host-name", NULL,
 628                       clientname);
 629
 630         pstr_sprintf(new_jobname,"%s%.8u %s", PRINT_SPOOL_PREFIX,
 631                 (unsigned int)pjob->smbjob, pjob->jobname);
 632
 633         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
 634                      new_jobname);
 635
 636         /*
 637          * add any options defined in smb.conf
 638          */
 639
 640         num_options = 0;
 641         options     = NULL;
 642         num_options = cupsParseOptions(lp_cups_options(snum), num_options, &options);
 643
 644         if ( num_options )
 645                 cupsEncodeOptions(request, num_options, options);
 646
 647        /*
 648         * Do the request and get back a response...
 649         */
 650
 651         slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
 652
 653         if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
 654                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 655                         DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
 656                                  ippErrorString(cupsLastError())));
 657                 } else {
 658                         ret = 0;
 659                 }
 660         } else {
 661                 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
 662                          ippErrorString(cupsLastError())));
 663         }
 664
 665         if ( ret == 0 )
 666                 unlink(pjob->filename);
 667         /* else print_job_end will do it for us */
 668
 669  out:
 670         if (response)
 671                 ippDelete(response);
 672
 673         if (language)
 674                 cupsLangFree(language);
 675
 676         if (http)
 677                 httpClose(http);
 678
 679         return ret;
 680 }
 681
 682 /*
 683  * 'cups_queue_get()' - Get all the jobs in the print queue.
 684  */
 685
 686 static int cups_queue_get(const char *sharename,
 687                enum printing_types printing_type,
 688                char *lpq_command,
 689                print_queue_struct **q,
 690                print_status_struct *status)
 691 {
 692         fstring         printername;
 693         http_t          *http = NULL;           /* HTTP connection to server */
 694         ipp_t           *request = NULL,        /* IPP Request */
 695                         *response = NULL;       /* IPP Response */
 696         ipp_attribute_t *attr = NULL;           /* Current attribute */
 697         cups_lang_t     *language = NULL;       /* Default language */
 698         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
 699         int             qcount = 0,             /* Number of active queue entries */
 700                         qalloc = 0;             /* Number of queue entries allocated */
 701         print_queue_struct *queue = NULL,       /* Queue entries */
 702                         *temp;          /* Temporary pointer for queue */
 703         const char      *user_name,     /* job-originating-user-name attribute */
 704                         *job_name;      /* job-name attribute */
 705         int             job_id;         /* job-id attribute */
 706         int             job_k_octets;   /* job-k-octets attribute */
 707         time_t          job_time;       /* time-at-creation attribute */
 708         ipp_jstate_t    job_status;     /* job-status attribute */
 709         int             job_priority;   /* job-priority attribute */
 710         static const char *jattrs[] =   /* Requested job attributes */
 711                         {
 712                           "job-id",
 713                           "job-k-octets",
 714                           "job-name",
 715                           "job-originating-user-name",
 716                           "job-priority",
 717                           "job-state",
 718                           "time-at-creation",
 719                         };
 720         static const char *pattrs[] =   /* Requested printer attributes */
 721                         {
 722                           "printer-state",
 723                           "printer-state-message"
 724                         };
 725
 726         *q = NULL;
 727
 728         /* HACK ALERT!!!  The problem with support the 'printer name'
 729            option is that we key the tdb off the sharename.  So we will
 730            overload the lpq_command string to pass in the printername
 731            (which is basically what we do for non-cups printers ... using
 732            the lpq_command to get the queue listing). */
 733
 734         fstrcpy( printername, lpq_command );
 735
 736         DEBUG(5,("cups_queue_get(%s, %p, %p)\n", printername, q, status));
 737
 738        /*
 739         * Make sure we don't ask for passwords...
 740         */
 741
 742         cupsSetPasswordCB(cups_passwd_cb);
 743
 744        /*
 745         * Try to connect to the server...
 746         */
 747
 748         if ((http = cups_connect()) == NULL) {
 749                 goto out;
 750         }
 751
 752        /*
 753         * Generate the printer URI...
 754         */
 755
 756         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
 757
 758        /*
 759         * Build an IPP_GET_JOBS request, which requires the following
 760         * attributes:
 761         *
 762         *    attributes-charset
 763         *    attributes-natural-language
 764         *    requested-attributes
 765         *    printer-uri
 766         */
 767
 768         request = ippNew();
 769
 770         request->request.op.operation_id = IPP_GET_JOBS;
 771         request->request.op.request_id   = 1;
 772
 773         language = cupsLangDefault();
 774
 775         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 776                      "attributes-charset", NULL, cupsLangEncoding(language));
 777
 778         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 779                      "attributes-natural-language", NULL, language->language);
 780
 781         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 782                       "requested-attributes",
 783                       (sizeof(jattrs) / sizeof(jattrs[0])),
 784                       NULL, jattrs);
 785
 786         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 787                      "printer-uri", NULL, uri);
 788
 789        /*
 790         * Do the request and get back a response...
 791         */
 792
 793         if ((response = cupsDoRequest(http, request, "/")) == NULL) {
 794                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 795                          ippErrorString(cupsLastError())));
 796                 goto out;
 797         }
 798
 799         if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 800                 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
 801                          ippErrorString(response->request.status.status_code)));
 802                 goto out;
 803         }
 804
 805        /*
 806         * Process the jobs...
 807         */
 808
 809         qcount = 0;
 810         qalloc = 0;
 811         queue  = NULL;
 812
 813         for (attr = response->attrs; attr != NULL; attr = attr->next) {
 814                /*
 815                 * Skip leading attributes until we hit a job...
 816                 */
 817
 818                 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
 819                         attr = attr->next;
 820
 821                 if (attr == NULL)
 822                         break;
 823
 824                /*
 825                 * Allocate memory as needed...
 826                 */
 827                 if (qcount >= qalloc) {
 828                         qalloc += 16;
 829
 830                         queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
 831
 832                         if (queue == NULL) {
 833                                 DEBUG(0,("cups_queue_get: Not enough memory!"));
 834                                 qcount = 0;
 835                                 goto out;
 836                         }
 837                 }
 838
 839                 temp = queue + qcount;
 840                 memset(temp, 0, sizeof(print_queue_struct));
 841
 842                /*
 843                 * Pull the needed attributes from this job...
 844                 */
 845
 846                 job_id       = 0;
 847                 job_priority = 50;
 848                 job_status   = IPP_JOB_PENDING;
 849                 job_time     = 0;
 850                 job_k_octets = 0;
 851                 user_name    = NULL;
 852                 job_name     = NULL;
 853
 854                 while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
 855                         if (attr->name == NULL) {
 856                                 attr = attr->next;
 857                                 break;
 858                         }
 859
 860                         if (strcmp(attr->name, "job-id") == 0 &&
 861                             attr->value_tag == IPP_TAG_INTEGER)
 862                                 job_id = attr->values[0].integer;
 863
 864                         if (strcmp(attr->name, "job-k-octets") == 0 &&
 865                             attr->value_tag == IPP_TAG_INTEGER)
 866                                 job_k_octets = attr->values[0].integer;
 867
 868                         if (strcmp(attr->name, "job-priority") == 0 &&
 869                             attr->value_tag == IPP_TAG_INTEGER)
 870                                 job_priority = attr->values[0].integer;
 871
 872                         if (strcmp(attr->name, "job-state") == 0 &&
 873                             attr->value_tag == IPP_TAG_ENUM)
 874                                 job_status = (ipp_jstate_t)(attr->values[0].integer);
 875
 876                         if (strcmp(attr->name, "time-at-creation") == 0 &&
 877                             attr->value_tag == IPP_TAG_INTEGER)
 878                                 job_time = attr->values[0].integer;
 879
 880                         if (strcmp(attr->name, "job-name") == 0 &&
 881                             attr->value_tag == IPP_TAG_NAME)
 882                                 job_name = attr->values[0].string.text;
 883
 884                         if (strcmp(attr->name, "job-originating-user-name") == 0 &&
 885                             attr->value_tag == IPP_TAG_NAME)
 886                                 user_name = attr->values[0].string.text;
 887
 888                         attr = attr->next;
 889                 }
 890
 891                /*
 892                 * See if we have everything needed...
 893                 */
 894
 895                 if (user_name == NULL || job_name == NULL || job_id == 0) {
 896                         if (attr == NULL)
 897                                 break;
 898                         else
 899                                 continue;
 900                 }
 901
 902                 temp->job      = job_id;
 903                 temp->size     = job_k_octets * 1024;
 904                 temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
 905                                  job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
 906                                  job_status == IPP_JOB_HELD ? LPQ_PAUSED :
 907                                  LPQ_PRINTING;
 908                 temp->priority = job_priority;
 909                 temp->time     = job_time;
 910                 strncpy(temp->fs_user, user_name, sizeof(temp->fs_user) - 1);
 911                 strncpy(temp->fs_file, job_name, sizeof(temp->fs_file) - 1);
 912
 913                 qcount ++;
 914
 915                 if (attr == NULL)
 916                         break;
 917         }
 918
 919         ippDelete(response);
 920         response = NULL;
 921
 922        /*
 923         * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
 924         * following attributes:
 925         *
 926         *    attributes-charset
 927         *    attributes-natural-language
 928         *    requested-attributes
 929         *    printer-uri
 930         */
 931
 932         request = ippNew();
 933
 934         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
 935         request->request.op.request_id   = 1;
 936
 937         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
 938                      "attributes-charset", NULL, cupsLangEncoding(language));
 939
 940         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
 941                      "attributes-natural-language", NULL, language->language);
 942
 943         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
 944                       "requested-attributes",
 945                       (sizeof(pattrs) / sizeof(pattrs[0])),
 946                       NULL, pattrs);
 947
 948         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
 949                      "printer-uri", NULL, uri);
 950
 951        /*
 952         * Do the request and get back a response...
 953         */
 954
 955         if ((response = cupsDoRequest(http, request, "/")) == NULL) {
 956                 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
 957                          ippErrorString(cupsLastError())));
 958                 *q = queue;
 959                 goto out;
 960         }
 961
 962         if (response->request.status.status_code >= IPP_OK_CONFLICT) {
 963                 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
 964                          ippErrorString(response->request.status.status_code)));
 965                 *q = queue;
 966                 goto out;
 967         }
 968
 969        /*
 970         * Get the current printer status and convert it to the SAMBA values.
 971         */
 972
 973         if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
 974                 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
 975                         status->status = LPSTAT_STOPPED;
 976                 else
 977                         status->status = LPSTAT_OK;
 978         }
 979
 980         if ((attr = ippFindAttribute(response, "printer-state-message",
 981                                      IPP_TAG_TEXT)) != NULL)
 982                 fstrcpy(status->message, attr->values[0].string.text);
 983
 984        /*
 985         * Return the job queue...
 986         */
 987
 988         *q = queue;
 989
 990  out:
 991         if (response)
 992                 ippDelete(response);
 993
 994         if (language)
 995                 cupsLangFree(language);
 996
 997         if (http)
 998                 httpClose(http);
 999
1000         return qcount;
1001 }
1002
1003
1004 /*
1005  * 'cups_queue_pause()' - Pause a print queue.
1006  */
1007
1008 static int cups_queue_pause(int snum)
1009 {
1010         int             ret = 1;                /* Return value */
1011         http_t          *http = NULL;           /* HTTP connection to server */
1012         ipp_t           *request = NULL,        /* IPP Request */
1013                         *response = NULL;       /* IPP Response */
1014         cups_lang_t     *language = NULL;       /* Default language */
1015         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1016
1017
1018         DEBUG(5,("cups_queue_pause(%d)\n", snum));
1019
1020         /*
1021          * Make sure we don't ask for passwords...
1022          */
1023
1024         cupsSetPasswordCB(cups_passwd_cb);
1025
1026         /*
1027          * Try to connect to the server...
1028          */
1029
1030         if ((http = cups_connect()) == NULL) {
1031                 goto out;
1032         }
1033
1034         /*
1035          * Build an IPP_PAUSE_PRINTER request, which requires the following
1036          * attributes:
1037          *
1038          *    attributes-charset
1039          *    attributes-natural-language
1040          *    printer-uri
1041          *    requesting-user-name
1042          */
1043
1044         request = ippNew();
1045
1046         request->request.op.operation_id = IPP_PAUSE_PRINTER;
1047         request->request.op.request_id   = 1;
1048
1049         language = cupsLangDefault();
1050
1051         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1052                      "attributes-charset", NULL, cupsLangEncoding(language));
1053
1054         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1055                      "attributes-natural-language", NULL, language->language);
1056
1057         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1058                  PRINTERNAME(snum));
1059
1060         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1061
1062         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1063                      NULL, current_user_info.unix_name);
1064
1065        /*
1066         * Do the request and get back a response...
1067         */
1068
1069         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1070                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1071                         DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1072                                 ippErrorString(cupsLastError())));
1073                 } else {
1074                         ret = 0;
1075                 }
1076         } else {
1077                 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1078                         ippErrorString(cupsLastError())));
1079         }
1080
1081  out:
1082         if (response)
1083                 ippDelete(response);
1084
1085         if (language)
1086                 cupsLangFree(language);
1087
1088         if (http)
1089                 httpClose(http);
1090
1091         return ret;
1092 }
1093
1094
1095 /*
1096  * 'cups_queue_resume()' - Restart a print queue.
1097  */
1098
1099 static int cups_queue_resume(int snum)
1100 {
1101         int             ret = 1;                /* Return value */
1102         http_t          *http = NULL;           /* HTTP connection to server */
1103         ipp_t           *request = NULL,        /* IPP Request */
1104                         *response = NULL;       /* IPP Response */
1105         cups_lang_t     *language = NULL;       /* Default language */
1106         char            uri[HTTP_MAX_URI]; /* printer-uri attribute */
1107
1108
1109         DEBUG(5,("cups_queue_resume(%d)\n", snum));
1110
1111        /*
1112         * Make sure we don't ask for passwords...
1113         */
1114
1115         cupsSetPasswordCB(cups_passwd_cb);
1116
1117        /*
1118         * Try to connect to the server...
1119         */
1120
1121         if ((http = cups_connect()) == NULL) {
1122                 goto out;
1123         }
1124
1125        /*
1126         * Build an IPP_RESUME_PRINTER request, which requires the following
1127         * attributes:
1128         *
1129         *    attributes-charset
1130         *    attributes-natural-language
1131         *    printer-uri
1132         *    requesting-user-name
1133         */
1134
1135         request = ippNew();
1136
1137         request->request.op.operation_id = IPP_RESUME_PRINTER;
1138         request->request.op.request_id   = 1;
1139
1140         language = cupsLangDefault();
1141
1142         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1143                      "attributes-charset", NULL, cupsLangEncoding(language));
1144
1145         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1146                      "attributes-natural-language", NULL, language->language);
1147
1148         slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1149                  PRINTERNAME(snum));
1150
1151         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1152
1153         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1154                      NULL, current_user_info.unix_name);
1155
1156        /*
1157         * Do the request and get back a response...
1158         */
1159
1160         if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1161                 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1162                         DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1163                                 ippErrorString(cupsLastError())));
1164                 } else {
1165                         ret = 0;
1166                 }
1167         } else {
1168                 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1169                         ippErrorString(cupsLastError())));
1170         }
1171
1172  out:
1173         if (response)
1174                 ippDelete(response);
1175
1176         if (language)
1177                 cupsLangFree(language);
1178
1179         if (http)
1180                 httpClose(http);
1181
1182         return ret;
1183 }
1184
1185 /*******************************************************************
1186  * CUPS printing interface definitions...
1187  ******************************************************************/
1188
1189 struct printif  cups_printif =
1190 {
1191         PRINT_CUPS,
1192         cups_queue_get,
1193         cups_queue_pause,
1194         cups_queue_resume,
1195         cups_job_delete,
1196         cups_job_pause,
1197         cups_job_resume,
1198         cups_job_submit,
1199 };
1200
1201 BOOL cups_pull_comment_location(NT_PRINTER_INFO_LEVEL_2 *printer)
1202 {
1203         http_t          *http = NULL;           /* HTTP connection to server */
1204         ipp_t           *request = NULL,        /* IPP Request */
1205                         *response = NULL;       /* IPP Response */
1206         ipp_attribute_t *attr;          /* Current attribute */
1207         cups_lang_t     *language = NULL;       /* Default language */
1208         char            *name,          /* printer-name attribute */
1209                         *info,          /* printer-info attribute */
1210                         *location;      /* printer-location attribute */
1211         char            uri[HTTP_MAX_URI];
1212         static const char *requested[] =/* Requested attributes */
1213                         {
1214                           "printer-name",
1215                           "printer-info",
1216                           "printer-location"
1217                         };
1218         BOOL ret = False;
1219
1220         DEBUG(5, ("pulling %s location\n", printer->sharename));
1221
1222         /*
1223          * Make sure we don't ask for passwords...
1224          */
1225
1226         cupsSetPasswordCB(cups_passwd_cb);
1227
1228         /*
1229          * Try to connect to the server...
1230          */
1231
1232         if ((http = cups_connect()) == NULL) {
1233                 goto out;
1234         }
1235
1236         request = ippNew();
1237
1238         request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1239         request->request.op.request_id   = 1;
1240
1241         language = cupsLangDefault();
1242
1243         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1244                      "attributes-charset", NULL, cupsLangEncoding(language));
1245
1246         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1247                      "attributes-natural-language", NULL, language->language);
1248
1249         slprintf(uri, sizeof(uri) - 1, "ipp://%s/printers/%s",
1250                  lp_cups_server(), printer->sharename);
1251
1252         ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1253                      "printer-uri", NULL, uri);
1254
1255         ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1256                       "requested-attributes",
1257                       (sizeof(requested) / sizeof(requested[0])),
1258                       NULL, requested);
1259
1260         /*
1261          * Do the request and get back a response...
1262          */
1263
1264         if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1265                 DEBUG(0,("Unable to get printer attributes - %s\n",
1266                          ippErrorString(cupsLastError())));
1267                 goto out;
1268         }
1269
1270         for (attr = response->attrs; attr != NULL;) {
1271                 /*
1272                  * Skip leading attributes until we hit a printer...
1273                  */
1274
1275                 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
1276                         attr = attr->next;
1277
1278                 if (attr == NULL)
1279                         break;
1280
1281                 /*
1282                  * Pull the needed attributes from this printer...
1283                  */
1284
1285                 name       = NULL;
1286                 info       = NULL;
1287                 location   = NULL;
1288
1289                 while ( attr && (attr->group_tag == IPP_TAG_PRINTER) ) {
1290                         /* Grab the comment if we don't have one */
1291                         if ( (strcmp(attr->name, "printer-info") == 0)
1292                              && (attr->value_tag == IPP_TAG_TEXT)
1293                              && !strlen(printer->comment) )
1294                         {
1295                                 DEBUG(5,("cups_pull_comment_location: Using cups comment: %s\n",
1296                                          attr->values[0].string.text));
1297                                 pstrcpy(printer->comment,attr->values[0].string.text);
1298                         }
1299
1300                         /* Grab the location if we don't have one */
1301                         if ( (strcmp(attr->name, "printer-location") == 0)
1302                              && (attr->value_tag == IPP_TAG_TEXT)
1303                              && !strlen(printer->location) )
1304                         {
1305                                 DEBUG(5,("cups_pull_comment_location: Using cups location: %s\n",
1306                                          attr->values[0].string.text));
1307                                 fstrcpy(printer->location,attr->values[0].string.text);
1308                         }
1309
1310                         attr = attr->next;
1311                 }
1312
1313                 /*
1314                  * See if we have everything needed...
1315                  */
1316
1317                 if (name == NULL)
1318                         break;
1319
1320         }
1321
1322         ret = True;
1323
1324  out:
1325         if (response)
1326                 ippDelete(response);
1327
1328         if (language)
1329                 cupsLangFree(language);
1330
1331         if (http)
1332                 httpClose(http);
1333
1334         return ret;
1335 }
1336
1337 #else
1338  /* this keeps fussy compilers happy */
1339  void print_cups_dummy(void);
1340  void print_cups_dummy(void) {}
1341 #endif /* HAVE_CUPS */