void reload_printers(void)
{
int snum;
int n_services = lp_numservices();
int pnum = lp_servicenumber(PRINTERS_NAME);
const char *pname;
pcap_cache_reload();
/* remove stale printers */
for (snum = 0; snum < n_services; snum++) {
/* avoid removing PRINTERS_NAME or non-autoloaded printers */
if (snum == pnum || !(lp_snum_ok(snum) && lp_print_ok(snum) &&
lp_autoloaded(snum)))
continue;
pname = lp_printername(snum);
if (!pcap_printername_ok(pname)) {
DEBUG(3, ("removing stale printer %s\n", pname));
if (is_printer_published(NULL, snum, NULL))
nt_printer_publish(NULL, snum, SPOOL_DS_UNPUBLISH);
del_a_printer(pname);
lp_killservice(snum);
}
}
load_printers();
}
/****************************************************************************
resume a job
****************************************************************************/
static int generic_job_resume(int snum, struct printjob *pjob)
{
fstring jobstr;
/* need to pause the spooled entry */
slprintf(jobstr, sizeof(jobstr)-1, "%d", pjob->sysjob);
return print_run_command(snum, lp_printername(talloc_tos(), snum), True,
lp_lpresume_command(talloc_tos(), snum), NULL,
"%j", jobstr,
NULL);
}
/****************************************************************************
purge stale printers and reload from pre-populated pcap cache
**************************************************************************/
void reload_printers(struct tevent_context *ev,
struct messaging_context *msg_ctx)
{
int n_services;
int pnum;
int snum;
const char *pname;
n_services = lp_numservices();
pnum = lp_servicenumber(PRINTERS_NAME);
DEBUG(10, ("reloading printer services from pcap cache\n"));
/*
* Add default config for printers added to smb.conf file and remove
* stale printers
*/
for (snum = 0; snum < n_services; snum++) {
/* avoid removing PRINTERS_NAME */
if (snum == pnum) {
continue;
}
/* skip no-printer services */
if (!(lp_snum_ok(snum) && lp_print_ok(snum))) {
continue;
}
pname = lp_printername(snum);
/* check printer, but avoid removing non-autoloaded printers */
if (lp_autoloaded(snum) && !pcap_printername_ok(pname)) {
DEBUG(3, ("removing stale printer %s\n", pname));
lp_killservice(snum);
}
}
/* Make sure deleted printers are gone */
load_printers(ev, msg_ctx);
}
/****************************************************************************
resume a queue
****************************************************************************/
static int generic_queue_resume(int snum)
{
return print_run_command(snum, lp_printername(talloc_tos(), snum), True,
lp_queueresume_command(talloc_tos(), snum), NULL, NULL);
}
static int generic_job_submit(int snum, struct printjob *pjob,
enum printing_types printing_type,
char *lpq_cmd)
{
int ret = -1;
char *current_directory = NULL;
char *print_directory = NULL;
char *wd = NULL;
char *p = NULL;
char *jobname = NULL;
TALLOC_CTX *ctx = talloc_tos();
fstring job_page_count, job_size;
print_queue_struct *q;
print_status_struct status;
/* we print from the directory path to give the best chance of
parsing the lpq output */
wd = sys_getwd();
if (!wd) {
return -1;
}
current_directory = talloc_strdup(ctx, wd);
SAFE_FREE(wd);
if (!current_directory) {
return -1;
}
print_directory = talloc_strdup(ctx, pjob->filename);
if (!print_directory) {
return -1;
}
p = strrchr_m(print_directory,'/');
if (!p) {
return -1;
}
*p++ = 0;
if (chdir(print_directory) != 0) {
return -1;
}
jobname = talloc_strdup(ctx, pjob->jobname);
if (!jobname) {
ret = -1;
goto out;
}
jobname = talloc_string_sub(ctx, jobname, "'", "_");
if (!jobname) {
ret = -1;
goto out;
}
slprintf(job_page_count, sizeof(job_page_count)-1, "%d", pjob->page_count);
slprintf(job_size, sizeof(job_size)-1, "%lu", (unsigned long)pjob->size);
/* send it to the system spooler */
ret = print_run_command(snum, lp_printername(talloc_tos(), snum), True,
lp_print_command(talloc_tos(), snum), NULL,
"%s", p,
"%J", jobname,
"%f", p,
"%z", job_size,
"%c", job_page_count,
NULL);
if (ret != 0) {
ret = -1;
goto out;
}
/*
* check the queue for the newly submitted job, this allows us to
* determine the backend job identifier (sysjob).
*/
pjob->sysjob = -1;
ret = generic_queue_get(lp_printername(talloc_tos(), snum),
printing_type, lpq_cmd, &q, &status);
if (ret > 0) {
int i;
for (i = 0; i < ret; i++) {
if (strcmp(q[i].fs_file, p) == 0) {
pjob->sysjob = q[i].sysjob;
DEBUG(5, ("new job %u (%s) matches sysjob %d\n",
pjob->jobid, jobname, pjob->sysjob));
break;
}
}
SAFE_FREE(q);
ret = 0;
}
if (pjob->sysjob == -1) {
DEBUG(2, ("failed to get sysjob for job %u (%s), tracking as "
"Unix job\n", pjob->jobid, jobname));
}
out:
if (chdir(current_directory) == -1) {
smb_panic("chdir failed in generic_job_submit");
}
TALLOC_FREE(current_directory);
return ret;
}
/****************************************************************************
pause a queue
****************************************************************************/
static int generic_queue_pause(int snum)
{
return print_run_command(snum, lp_printername(snum), True,
lp_queuepausecommand(snum), NULL, NULL);
}
static int generic_job_submit(int snum, struct printjob *pjob)
{
int ret = -1;
char *current_directory = NULL;
char *print_directory = NULL;
char *wd = NULL;
char *p = NULL;
char *jobname = NULL;
TALLOC_CTX *ctx = talloc_tos();
fstring job_page_count, job_size;
/* we print from the directory path to give the best chance of
parsing the lpq output */
wd = sys_getwd();
if (!wd) {
return -1;
}
current_directory = talloc_strdup(ctx, wd);
SAFE_FREE(wd);
if (!current_directory) {
return -1;
}
print_directory = talloc_strdup(ctx, pjob->filename);
if (!print_directory) {
return -1;
}
p = strrchr_m(print_directory,'/');
if (!p) {
return -1;
}
*p++ = 0;
if (chdir(print_directory) != 0) {
return -1;
}
jobname = talloc_strdup(ctx, pjob->jobname);
if (!jobname) {
ret = -1;
goto out;
}
jobname = talloc_string_sub(ctx, jobname, "'", "_");
if (!jobname) {
ret = -1;
goto out;
}
slprintf(job_page_count, sizeof(job_page_count)-1, "%d", pjob->page_count);
slprintf(job_size, sizeof(job_size)-1, "%lu", (unsigned long)pjob->size);
/* send it to the system spooler */
ret = print_run_command(snum, lp_printername(snum), True,
lp_printcommand(snum), NULL,
"%s", p,
"%J", jobname,
"%f", p,
"%z", job_size,
"%c", job_page_count,
NULL);
out:
if (chdir(current_directory) == -1) {
smb_panic("chdir failed in generic_job_submit");
}
TALLOC_FREE(current_directory);
return ret;
}
/**
* @brief Purge stale printer shares and reload from pre-populated pcap cache.
*
* This function should normally only be called as a callback on a successful
* pcap_cache_reload(), or on client enumeration.
*
* @param[in] ev The event context.
*
* @param[in] msg_ctx The messaging context.
*/
void delete_and_reload_printers(struct tevent_context *ev,
struct messaging_context *msg_ctx)
{
int n_services;
int pnum;
int snum;
const char *pname;
bool ok;
time_t pcap_last_update;
TALLOC_CTX *frame = talloc_stackframe();
ok = pcap_cache_loaded(&pcap_last_update);
if (!ok) {
DEBUG(1, ("pcap cache not loaded\n"));
talloc_free(frame);
return;
}
if (reload_last_pcap_time == pcap_last_update) {
DEBUG(5, ("skipping printer reload, already up to date.\n"));
talloc_free(frame);
return;
}
reload_last_pcap_time = pcap_last_update;
/* Get pcap printers updated */
load_printers(ev, msg_ctx);
n_services = lp_numservices();
pnum = lp_servicenumber(PRINTERS_NAME);
DEBUG(10, ("reloading printer services from pcap cache\n"));
/*
* Add default config for printers added to smb.conf file and remove
* stale printers
*/
for (snum = 0; snum < n_services; snum++) {
/* avoid removing PRINTERS_NAME */
if (snum == pnum) {
continue;
}
/* skip no-printer services */
if (!snum_is_shared_printer(snum)) {
continue;
}
pname = lp_printername(frame, snum);
/* check printer, but avoid removing non-autoloaded printers */
if (lp_autoloaded(snum) && !pcap_printername_ok(pname)) {
lp_killservice(snum);
}
}
/* Make sure deleted printers are gone */
load_printers(ev, msg_ctx);
talloc_free(frame);
}
static int iprint_job_submit(int snum, struct printjob *pjob,
enum printing_types printing_type,
char *lpq_cmd)
{
int ret = 1; /* Return value */
http_t *http = NULL; /* HTTP connection to server */
ipp_t *request = NULL, /* IPP Request */
*response = NULL; /* IPP Response */
ipp_attribute_t *attr; /* Current attribute */
cups_lang_t *language = NULL; /* Default language */
char uri[HTTP_MAX_URI]; /* printer-uri attribute */
DEBUG(5,("iprint_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
/*
* Make sure we don't ask for passwords...
*/
cupsSetPasswordCB(iprint_passwd_cb);
/*
* Try to connect to the server...
*/
if ((http = httpConnect(iprint_server(), ippPort())) == NULL) {
DEBUG(0,("Unable to connect to iPrint server %s - %s\n",
iprint_server(), strerror(errno)));
goto out;
}
/*
* Build an IPP_PRINT_JOB request, which requires the following
* attributes:
*
* attributes-charset
* attributes-natural-language
* printer-uri
* requesting-user-name
* [document-data]
*/
request = ippNew();
ippSetOperation(request, IPP_PRINT_JOB);
ippSetRequestId(request, 1);
language = cupsLangDefault();
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
"attributes-charset", NULL, "utf-8");
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
"attributes-natural-language", NULL, language->language);
slprintf(uri, sizeof(uri) - 1, "ipp://%s/ipp/%s", iprint_server(),
lp_printername(snum));
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
"printer-uri", NULL, uri);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
NULL, pjob->user);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"job-originating-host-name", NULL,
pjob->clientmachine);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
pjob->jobname);
/*
* Do the request and get back a response...
*/
slprintf(uri, sizeof(uri) - 1, "/ipp/%s", lp_printername(snum));
if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
DEBUG(0,("Unable to print file to %s - %s\n",
lp_printername(snum),
ippErrorString(cupsLastError())));
} else {
ret = 0;
}
} else {
DEBUG(0,("Unable to print file to `%s' - %s\n",
lp_printername(snum),
ippErrorString(cupsLastError())));
}
if ( ret == 0 )
unlink(pjob->filename);
/* else print_job_end will do it for us */
if ( ret == 0 ) {
attr = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER);
if (attr != NULL && ippGetGroupTag(attr) == IPP_TAG_JOB)
{
pjob->sysjob = ippGetInteger(attr, 0);
}
}
out:
if (response)
ippDelete(response);
if (language)
cupsLangFree(language);
if (http)
httpClose(http);
return ret;
}
static int iprint_job_resume(int snum, struct printjob *pjob)
{
int ret = 1; /* Return value */
http_t *http = NULL; /* HTTP connection to server */
ipp_t *request = NULL, /* IPP Request */
*response = NULL; /* IPP Response */
cups_lang_t *language = NULL; /* Default language */
char uri[HTTP_MAX_URI]; /* printer-uri attribute */
char httpPath[HTTP_MAX_URI]; /* path portion of the printer-uri */
DEBUG(5,("iprint_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
/*
* Make sure we don't ask for passwords...
*/
cupsSetPasswordCB(iprint_passwd_cb);
/*
* Try to connect to the server...
*/
if ((http = httpConnect(iprint_server(), ippPort())) == NULL) {
DEBUG(0,("Unable to connect to iPrint server %s - %s\n",
iprint_server(), strerror(errno)));
goto out;
}
/*
* Build an IPP_RELEASE_JOB request, which requires the following
* attributes:
*
* attributes-charset
* attributes-natural-language
* printer-uri
* job-id
* requesting-user-name
*/
request = ippNew();
ippSetOperation(request, IPP_RELEASE_JOB);
ippSetRequestId(request, 1);
language = cupsLangDefault();
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
"attributes-charset", NULL, "utf-8");
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
"attributes-natural-language", NULL, language->language);
slprintf(uri, sizeof(uri) - 1, "ipp://%s/ipp/%s", iprint_server(),
lp_printername(snum));
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id", pjob->sysjob);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
NULL, pjob->user);
/*
* Do the request and get back a response...
*/
slprintf(httpPath, sizeof(httpPath) - 1, "/ipp/%s",
lp_printername(snum));
if ((response = cupsDoRequest(http, request, httpPath)) != NULL) {
if (ippGetStatusCode(response) >= IPP_OK_CONFLICT) {
DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
ippErrorString(cupsLastError())));
} else {
ret = 0;
}
} else {
DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
ippErrorString(cupsLastError())));
}
out:
if (response)
ippDelete(response);
if (language)
cupsLangFree(language);
if (http)
httpClose(http);
return ret;
}
/**
* @brief Purge stale printers and reload from pre-populated pcap cache.
*
* This function should normally only be called as a callback on a successful
* pcap_cache_reload().
*
* This function can cause DELETION of printers and drivers from our registry,
* so calling it on a failed pcap reload may REMOVE permanently all printers
* and drivers.
*
* @param[in] ev The event context.
*
* @param[in] msg_ctx The messaging context.
*/
static void delete_and_reload_printers_full(struct tevent_context *ev,
struct messaging_context *msg_ctx)
{
struct auth_session_info *session_info = NULL;
struct spoolss_PrinterInfo2 *pinfo2 = NULL;
int n_services;
int pnum;
int snum;
const char *pname;
const char *sname;
NTSTATUS status;
n_services = lp_numservices();
pnum = lp_servicenumber(PRINTERS_NAME);
status = make_session_info_system(talloc_tos(), &session_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("reload_printers: "
"Could not create system session_info\n"));
/* can't remove stale printers before we
* are fully initilized */
return;
}
/*
* Add default config for printers added to smb.conf file and remove
* stale printers
*/
for (snum = 0; snum < n_services; snum++) {
/* avoid removing PRINTERS_NAME */
if (snum == pnum) {
continue;
}
/* skip no-printer services */
if (!snum_is_shared_printer(snum)) {
continue;
}
sname = lp_const_servicename(snum);
pname = lp_printername(session_info, snum);
/* check printer, but avoid removing non-autoloaded printers */
if (lp_autoloaded(snum) && !pcap_printername_ok(pname)) {
DEBUG(3, ("removing stale printer %s\n", pname));
if (is_printer_published(session_info, session_info,
msg_ctx,
NULL,
lp_servicename(session_info,
snum),
&pinfo2)) {
nt_printer_publish(session_info,
session_info,
msg_ctx,
pinfo2,
DSPRINT_UNPUBLISH);
TALLOC_FREE(pinfo2);
}
nt_printer_remove(session_info, session_info, msg_ctx,
pname);
} else {
DEBUG(8, ("Adding default registry entry for printer "
"[%s], if it doesn't exist.\n", sname));
nt_printer_add(session_info, session_info, msg_ctx,
sname);
}
}
/* finally, purge old snums */
delete_and_reload_printers();
TALLOC_FREE(session_info);
}