Spit out kerberos principals in krb5 format.

[moira.git] / gen / cups-print.pc

/* $Id$
 *
 * This generates printcaps and other files for Athena print servers
 *
 * Copyright (C) 1992-1998 by the Massachusetts Institute of Technology.
 * For copying and distribution information, please see the file
 * <mit-copyright.h>.
 */

#include <mit-copyright.h>
#include <moira.h>
#include <moira_site.h>

#include <sys/stat.h>
#include <sys/types.h>

#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include <time.h>
#ifdef HAVE_KRB4
#include <krb.h>
#endif
#include <krb5.h>

#include "util.h"

EXEC SQL INCLUDE sqlca;

RCSID("$Header$");

char *whoami = "cups-print.gen";
char *db = "moira/moira";

const int krbvers = 5;	/* use Kerberos 5 */

/* OMG, I hate this, but it's cleaner, I guess? */

const char *alterjob = "<Limit Hold-Job Release-Job\
 Restart-Job Purge-Jobs Reprocess-Job Set-Job-Attributes\
 Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>";
const char *submitjob = "<Limit Create-Job Print-Job Print-URI Send-Document\
 Set-Job-Attributes Send-URI Create-Job-Subscription Renew-Subscription\
 Cancel-Subscription Get-Notifications CUPS-Move-Job>";
const char *alterpntr = "<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer\
 CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>";
const char *lpcpntr = "<Limit Pause-Printer Resume-Printer Enable-Printer\
 Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs\
 Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer\
 Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After\
 CUPS-Accept-Jobs CUPS-Reject-Jobs>";
const char *canceljob = "<Limit Cancel-Job CUPS-Authenticate-Job>";
const char *catchall = "<Limit All>";
const char *phost = "printers.MIT.EDU";

void do_host(char *host);
void sqlerr(void);
#ifndef MAX
#define MAX(a, b) ( (a) > (b) ? (a) : (b) )
#endif

int main(int argc, char **argv)
{
  EXEC SQL BEGIN DECLARE SECTION;
  char name[MACHINE_NAME_SIZE];
  EXEC SQL END DECLARE SECTION;

  init_acls();

  EXEC SQL CONNECT :db;

  EXEC SQL WHENEVER SQLERROR DO sqlerr();

  EXEC SQL DECLARE csr_hosts CURSOR FOR
    SELECT m.name FROM machine m, serverhosts sh
    WHERE m.mach_id = sh.mach_id AND sh.service = 'CUPS-PRINT' AND sh.enable = 1;
  EXEC SQL OPEN csr_hosts;
  while (1)
    {
      EXEC SQL FETCH csr_hosts INTO :name;
      if (sqlca.sqlcode)
	break;

      strtrim(name);
      do_host(name);
    }
  EXEC SQL CLOSE csr_hosts;

  exit(MR_SUCCESS);
}

void printer_user_list(FILE *out, char *type, int id, char *str)
{
  struct save_queue *sq;
  struct imember *m;
  char kbuf[MAX_K_NAME_SZ];
  char *cp;

  sq = get_acl(type, id, NULL);
  while (sq_remove_data(sq, &m))
    {
      if (m->type != 'S' && m->type != NULL) {
	/* CUPS wants mmanley/root, not mmanley.root@ATHENA.MIT.EDU */
        canon_krb(m, krbvers, kbuf, sizeof(kbuf));

	/* now, take out all the @realm */
        for (cp=kbuf; *cp; cp++) {
	  if (*cp == '@') *cp = '\0';
 	}
        fprintf(out, "%s %s\n", str, kbuf);
      }
      freeimember(m);
    }
  sq_destroy(sq);
}



void do_host(char *host)
{
  EXEC SQL BEGIN DECLARE SECTION;
  char rp[PRINTERS_RP_SIZE], name[PRINTERS_NAME_SIZE];
  char duplexname[PRINTERS_DUPLEXNAME_SIZE], location[PRINTERS_LOCATION_SIZE];
  char hwtype[PRINTERS_HWTYPE_SIZE], lowerhwtype[PRINTERS_HWTYPE_SIZE];
  char modtime[PRINTERS_MODTIME_SIZE], lmodtime[LIST_MODTIME_SIZE];
  char contact[PRINTERS_CONTACT_SIZE], hostname[MACHINE_NAME_SIZE];
  char cupshosts[MACHINE_NAME_SIZE], prtype [PRINTERS_TYPE_SIZE];
  char *spoolhost = host, *unixtime_fmt = UNIXTIME_FMT, *p;
  char *lhost;
  int ka, pc, ac, lpc_acl, top_lpc_acl, banner, rm;
  EXEC SQL END DECLARE SECTION;
  TARFILE *tf;
  FILE *out;
  char filename[MAXPATHLEN], *duptc;
  time_t mtime, now = time(NULL);

  lhost = (char *) strdup (host);
  for (p = lhost; *p; p++)
     *p = tolower(*p);

  EXEC SQL SELECT mach_id INTO :rm FROM machine
    WHERE name = :spoolhost;

  sprintf(filename, "%s/cups-print/%s", DCM_DIR, host);
  tf = tarfile_open(filename);

  /* printers.conf */
  out = tarfile_start(tf, "/etc/cups/printers.conf", 0644, 0, 0,
		      "lp", "lp", now);

  EXEC SQL DECLARE csr_printers CURSOR FOR
    SELECT pr.rp, pr.name, pr.duplexname, pr.hwtype,
    m.name, pr.banner, pr.location, pr.contact, pr.ka,
    pr.ac, pr.lpc_acl
    FROM printers pr, machine m
    WHERE pr.rm = :rm AND m.mach_id = pr.mach_id
    AND pr.type != 'ALIAS';
  EXEC SQL OPEN csr_printers;
  while (1)
    {
      EXEC SQL FETCH csr_printers INTO :rp, :name, :duplexname,
	:hwtype, :hostname, :banner, :location, :contact, :ka, :ac, :lpc_acl;
      if (sqlca.sqlcode)
	break;

      strtrim(rp);
      strtrim(name);
      strtrim(duplexname);
      strtrim(hwtype);
      strtrim(hostname);
      strtrim(location);
      strtrim(contact);
      strcpy(lowerhwtype, hwtype);
      for (p = lowerhwtype; *p; p++)
	*p = tolower(*p);

      fprintf(out, "<Printer %s>\n",rp);
      fprintf(out, "Info %s:%s\n", rp, hwtype);
      /* Note the use of "beh" to keep the CUPS from disabling print queues
       * should they not respond versus discarding the job.  
       * See the "beh" page for details.  
       * The 1/0/60 says "don't disable/try 20 times/try every 60s */
      if (!strncmp(hwtype, "HP", 2)) 
	  fprintf(out, "DeviceURI beh:/1/20/60/socket://%s:9100\n", hostname);
      else
	  fprintf(out, "DeviceURI beh:/1/20/60/socket://%s\n", hostname);
      fprintf(out, "State Idle\n");	// Always with the Idle
      fprintf(out, "StateTime %ld\n", (long)time(NULL));
      fprintf(out, "Accepting Yes\n");
      fprintf(out, "Shared Yes\n");
      fprintf(out, "QuotaPeriod 0\n");
      fprintf(out, "PageLimit 0\n");
      fprintf(out, "Klimit 0\n");
      fprintf(out, "Option sides one-sided\n");
      if (location[0])
        fprintf(out, "Location %s\n", location);
      fprintf(out, "ErrorPolicy abort-job\n");
      if (ka || lpc_acl)
   	fprintf(out, "OpPolicy %s-policy\n", rp);
      else
        fprintf(out, "OpPolicy default\n");

      /* Access-control list. */
      if (ac)
        {
          if (ka)
   	    fprintf(out, "AuthType Negotiate\n");
	  else
   	    fprintf(out, "AuthType Default\n");
          printer_user_list(out, "LIST", ac, "AllowUser");
        }

      if (banner == PRN_BANNER_NONE)
	fprintf(out, "JobSheets none none\n");
      else 
	fprintf(out, "JobSheets athena none\n");
      fprintf(out, "</Printer>\n");

    }
  EXEC SQL CLOSE csr_printers;
  tarfile_end(tf);


  /* aliases are in classes.conf */
  out = tarfile_start(tf, "/etc/cups/classes.conf", 0644, 0, 0,
	          "lp", "lp", now);
  EXEC SQL DECLARE csr_duplexqs CURSOR FOR
    SELECT pr.rp, pr.name, pr.duplexname, pr.hwtype,
    m.name, pr.banner, pr.location, pr.contact, pr.ka, 
    pr.type as prtype, pr.ac
    FROM printers pr, machine m
    WHERE pr.rm = :rm AND m.mach_id = pr.mach_id;
  EXEC SQL OPEN csr_duplexqs;
  while (1)
    {
      EXEC SQL FETCH csr_duplexqs INTO :rp, :name, :duplexname,
	:hwtype, :hostname, :banner, :location, :contact, :ka, :prtype, :ac;
      if (sqlca.sqlcode)
	break;

      strtrim(hwtype);
      strtrim(rp);
      strtrim(location);
      strtrim(contact);
      strtrim(prtype);

      /* Define alias queues as classes to the regular queues for
       * accounting reasons.  Annoyingly, classes don't always inherit
       * their printer definitions.
      */
      if (!strcmp(prtype,"ALIAS")) 
	{
          strtrim(name);
          fprintf(out, "<Class %s>\n",name);
          fprintf(out, "Info Alias Queue to %s:%s\n", rp, hwtype);
          fprintf(out, "Printer %s\n", rp);
          fprintf(out, "Option sides one-sided\n");
          fprintf(out, "State Idle\n");     // Always with the Idle
          fprintf(out, "StateTime %ld\n", (long)time(NULL));
          fprintf(out, "Accepting Yes\n");
          fprintf(out, "Shared Yes\n");
          fprintf(out, "QuotaPeriod 0\n");
          fprintf(out, "PageLimit 0\n");
          if (location[0])
            fprintf(out, "Location %s\n", location);
          fprintf(out, "ErrorPolicy abort-job\n");
          if (ka || lpc_acl)
       	    fprintf(out, "OpPolicy %s-policy\n", rp);
          else
            fprintf(out, "OpPolicy default\n");
    
          /* Access-control list. */
          if (ac)
            {
              if (ka)
       	        fprintf(out, "AuthType Negotiate\n");
    	      else
   	        fprintf(out, "AuthType Default\n");
              printer_user_list(out, "LIST", ac, "AllowUser");
            }
    
          if (banner == PRN_BANNER_NONE)
    	    fprintf(out, "JobSheets none none\n");
          else 
    	    fprintf(out, "JobSheets athena none\n");
          fprintf(out, "</Class>\n");
      }

      /* Define duplex queues as aliases to the regular queues for
       * accounting reasons.  Annoyingly, classes don't always inherit
       * their printer definitions.
      */
      if (*duplexname)
	{
          strtrim(duplexname);
          fprintf(out, "<Class %s>\n",duplexname);
          if (!strcmp(prtype,"ALIAS")) 
            fprintf(out, "Info Duplex Alias Queue to %s:%s\n", rp, hwtype);
	  else
            fprintf(out, "Info Duplex Queue for %s:%s\n", rp, hwtype);
	  fprintf(out, "Option sides two-sided-long-edge\n");	// duplex
          fprintf(out, "Printer %s\n", rp);
          fprintf(out, "State Idle\n");     // Always with the Idle
          fprintf(out, "StateTime %ld\n", (long)time(NULL));
          fprintf(out, "Accepting Yes\n");
          fprintf(out, "Shared Yes\n");
          fprintf(out, "QuotaPeriod 0\n");
          fprintf(out, "PageLimit 0\n");
          if (location[0])
            fprintf(out, "Location %s\n", location);
          fprintf(out, "ErrorPolicy abort-job\n");
          if (ka || lpc_acl)
       	    fprintf(out, "OpPolicy %s-policy\n", rp);
          else
            fprintf(out, "OpPolicy default\n");
    
          /* Access-control list. */
          if (ac)
            {
              if (ka)
       	        fprintf(out, "AuthType Negotiate\n");
    	      else
   	        fprintf(out, "AuthType Default\n");
              printer_user_list(out, "LIST", ac, "AllowUser");
            }
    
          if (banner == PRN_BANNER_NONE)
    	    fprintf(out, "JobSheets none none\n");
          else if (banner == PRN_BANNER_LAST)
    	    fprintf(out, "JobSheets athena none\n");
          fprintf(out, "</Class>\n");
	}
    }
  EXEC SQL CLOSE csr_duplexqs;
  tarfile_end(tf);

  /* cups.conf */
  out = tarfile_start(tf, "/etc/cups/cupsd.conf", 0755, 1, 1,
		      "root", "lp", now);

  fprintf(out, "LogLevel info\n");
  fprintf(out, "SystemGroup sys root ops-group\n");
  fprintf(out, "Port 631\n");
  fprintf(out, "Listen /var/run/cups/cups.sock\n");
  fprintf(out, "Browsing On\n");
  fprintf(out, "BrowseOrder allow,deny\n");
  fprintf(out, "BrowseAllow all\n");
  fprintf(out, "BrowseAddress @LOCAL\n");
  fprintf(out, "DefaultAuthType Negotiate\n");
  fprintf(out, "ServerCertificate /etc/cups/ssl/%s-ipp-crt.pem\n", lhost);
  fprintf(out, "ServerKey /etc/cups/ssl/%s-ipp-key.pem\n", lhost);
  fprintf(out, "ServerName %s\n", lhost);
  fprintf(out, "ServerAlias %s\n", phost);
  fprintf(out, "Krb5Keytab /etc/krb5-ipp.keytab\n");

  /* The other CUPS servers should be aware of the other hosts'
     queues, so we'll let them browse each other. */
  fprintf(out, "Include cups.local.conf\n");
  fprintf(out, "Include cups.locations.conf\n");
  fprintf(out, "Include cups.policies.conf\n");
  tarfile_end(tf);

  /* cups.hosts.conf */
  out = tarfile_start(tf, "/etc/cups/cups.hosts.conf", 0755, 1, 1,
		      "root", "lp", now);
  EXEC SQL DECLARE csr_cupshosts CURSOR FOR
    SELECT m.name AS cupshosts FROM machine m, printservers ps
    WHERE m.mach_id = ps.mach_id AND ps.kind = 'CUPS';
  EXEC SQL OPEN csr_cupshosts;
  while (1)
    {
      EXEC SQL FETCH csr_cupshosts INTO :cupshosts;
      if (sqlca.sqlcode)
	break;

      strtrim(cupshosts);

      /* Don't poll yourself looking for answers! */
      if (strcmp(cupshosts,host))
         fprintf(out, "BrowsePoll %s\n", cupshosts);
    }
  EXEC SQL CLOSE csr_cupshosts;

  tarfile_end(tf);

  /* cups.policies.conf */
  out = tarfile_start(tf, "/etc/cups/cups.policies.conf", 0755, 1, 1,
		      "root", "lp", now);
  fprintf(out, "# Printer-specific LPC and LPR ACLs\n");
  /* lpcaccess.top */
  EXEC SQL SELECT ps.lpc_acl INTO :top_lpc_acl
    FROM printservers ps, machine m
    WHERE m.name = :spoolhost AND m.mach_id = ps.mach_id;
  if (!sqlca.sqlcode && lpc_acl)
    {
      fprintf (out, "<Policy default>\n");
      fprintf (out, "%s\n", alterjob);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @OWNER @SYSTEM\n");
      printer_user_list(out, "LIST", top_lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", submitjob);
      fprintf (out, "AuthType None\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", alterpntr);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @SYSTEM\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", lpcpntr);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @SYSTEM\n");
      printer_user_list(out, "LIST", top_lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", canceljob);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @OWNER @SYSTEM\n");
      printer_user_list(out, "LIST", top_lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", catchall);
      fprintf (out, "AuthType None\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "</Policy>\n");
    }

  /* restrict lists and lpcaccess policies.  Sadly, we have to put the
     top level for each new policy since CUPS doesn't have a way of 
     doing it otherwise (well, Unix groups, but not moira) */
  EXEC SQL DECLARE csr_lpc CURSOR FOR
    SELECT UNIQUE rp, ka, ac, lpc_acl
    FROM printers
    WHERE rm = :rm AND ( ac != 0 OR lpc_acl != 0);
  EXEC SQL OPEN csr_lpc;
  while (1)
    {
      EXEC SQL FETCH csr_lpc INTO :name, :ka, :ac, :lpc_acl;
      if (sqlca.sqlcode)
        break;

      strtrim(name);

      fprintf (out, "<Policy %s-policy>\n", name);
      fprintf (out, "%s\n", alterjob);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @OWNER @SYSTEM\n");
      printer_user_list(out, "LIST", lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", submitjob);
      /* If the printer is Kerberized? */
      if (ka)
        fprintf (out, "AuthType Negotiate\n");
      else
        fprintf (out, "AuthType None\n");
      /* Access-control list. */
      if (ac)
        printer_user_list(out, "LIST", ac, "Require user");
      else if (ka)
        fprintf (out, "Require valid-user\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", alterpntr);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @SYSTEM\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", lpcpntr);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @SYSTEM\n");
      /* printer-specific lpc access. */
      if (lpc_acl)
          printer_user_list(out, "LIST", lpc_acl, "Require user");
      printer_user_list(out, "LIST", top_lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", canceljob);
      fprintf (out, "AuthType Default\n");
      fprintf (out, "Require user @OWNER @SYSTEM\n");
      printer_user_list(out, "LIST", lpc_acl, "Require user");
      printer_user_list(out, "LIST", top_lpc_acl, "Require user");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "%s\n", catchall);
      fprintf (out, "AuthType None\n");
      fprintf (out, "Order deny,allow\n");
      fprintf (out, "Allow from all\n");
      fprintf (out, "</Limit>\n");
      fprintf (out, "</Policy>\n");
    }
  EXEC SQL CLOSE csr_lpc;
  fprintf(out, "\n");
  tarfile_end(tf);
  tarfile_close(tf);
}

void sqlerr(void)
{
  db_error(sqlca.sqlcode);
}