#include <cups/http-private.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <cups/backend.h>
#include <cups/cups.h>
#include <cups/language.h>
#include <cups/i18n.h>
#include <cups/string.h>
#include <signal.h>
#include <sys/wait.h>
static char *password = NULL;
static int password_tries = 0;
#ifdef __APPLE__
static char pstmpname[1024] = "";
#endif
static char tmpfilename[1024] = "";
static int job_cancelled = 0;
static void cancel_job(http_t *http, const char *uri, int id,
const char *resource, const char *user, int version);
static void check_printer_state(http_t *http, const char *uri,
const char *resource, const char *user,
int version, int job_id);
#ifdef HAVE_LIBZ
static void compress_files(int num_files, char **files);
#endif
static const char *password_cb(const char *);
static int report_printer_state(ipp_t *ipp, int job_id);
#ifdef __APPLE__
static int run_pictwps_filter(char **argv, const char *filename);
#endif
static void sigterm_handler(int sig);
int
main(int argc,
char *argv[])
{
int i;
int send_options;
int num_options;
cups_option_t *options;
char method[255],
hostname[1024],
username[255],
resource[1024],
addrname[256],
*optptr,
*name,
*value,
sep;
int num_files;
char **files,
*filename;
int port;
char uri[HTTP_MAX_URI];
ipp_status_t ipp_status;
http_t *http;
ipp_t *request,
*response,
*supported;
time_t start_time;
int recoverable;
int contimeout;
int delay;
int compression,
waitjob,
waitprinter;
ipp_attribute_t *job_id_attr;
int job_id;
ipp_attribute_t *job_sheets;
ipp_attribute_t *job_state;
ipp_attribute_t *copies_sup;
ipp_attribute_t *format_sup;
ipp_attribute_t *printer_state;
ipp_attribute_t *printer_accepting;
int copies,
copies_remaining;
const char *content_type,
*final_content_type;
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
struct sigaction action;
#endif
int version;
static const char * const pattrs[] =
{
"copies-supported",
"document-format-supported",
"printer-is-accepting-jobs",
"printer-state",
"printer-state-message",
"printer-state-reasons",
};
static const char * const jattrs[] =
{
"job-media-sheets-completed",
"job-state"
};
setbuf(stderr, NULL);
#ifdef HAVE_SIGSET
sigset(SIGPIPE, SIG_IGN);
sigset(SIGTERM, sigterm_handler);
#elif defined(HAVE_SIGACTION)
memset(&action, 0, sizeof(action));
action.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &action, NULL);
sigemptyset(&action.sa_mask);
sigaddset(&action.sa_mask, SIGTERM);
action.sa_handler = sigterm_handler;
sigaction(SIGTERM, &action, NULL);
#else
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, sigterm_handler);
#endif
if (argc == 1)
{
char *s;
if ((s = strrchr(argv[0], '/')) != NULL)
s ++;
else
s = argv[0];
printf("network %s \"Unknown\" \"Internet Printing Protocol (%s)\"\n",
s, s);
return (CUPS_BACKEND_OK);
}
else if (argc < 6)
{
_cupsLangPrintf(stderr,
_("Usage: %s job-id user title copies options [file]\n"),
argv[0]);
return (CUPS_BACKEND_STOP);
}
if ((content_type = getenv("CONTENT_TYPE")) == NULL)
content_type = "application/octet-stream";
if ((final_content_type = getenv("FINAL_CONTENT_TYPE")) == NULL)
{
final_content_type = content_type;
if (!strncmp(final_content_type, "printer/", 8))
final_content_type = "application/vnd.cups-raw";
}
if (httpSeparateURI(HTTP_URI_CODING_ALL, cupsBackendDeviceURI(argv),
method, sizeof(method), username, sizeof(username),
hostname, sizeof(hostname), &port,
resource, sizeof(resource)) < HTTP_URI_OK)
{
_cupsLangPuts(stderr,
_("ERROR: Missing device URI on command-line and no "
"DEVICE_URI environment variable!\n"));
return (CUPS_BACKEND_STOP);
}
if (!port)
port = IPP_PORT;
if (!strcmp(method, "https"))
cupsSetEncryption(HTTP_ENCRYPT_ALWAYS);
else
cupsSetEncryption(HTTP_ENCRYPT_IF_REQUESTED);
compression = 0;
version = 1;
waitjob = 1;
waitprinter = 1;
contimeout = 7 * 24 * 60 * 60;
if ((optptr = strchr(resource, '?')) != NULL)
{
*optptr++ = '\0';
while (*optptr)
{
name = optptr;
while (*optptr && *optptr != '=' && *optptr != '+' && *optptr != '&')
optptr ++;
if ((sep = *optptr) != '\0')
*optptr++ = '\0';
if (sep == '=')
{
value = optptr;
while (*optptr && *optptr != '+' && *optptr != '&')
optptr ++;
if (*optptr)
*optptr++ = '\0';
}
else
value = (char *)"";
if (!strcasecmp(name, "waitjob"))
{
waitjob = !strcasecmp(value, "on") ||
!strcasecmp(value, "yes") ||
!strcasecmp(value, "true");
}
else if (!strcasecmp(name, "waitprinter"))
{
waitprinter = !strcasecmp(value, "on") ||
!strcasecmp(value, "yes") ||
!strcasecmp(value, "true");
}
else if (!strcasecmp(name, "encryption"))
{
if (!strcasecmp(value, "always"))
cupsSetEncryption(HTTP_ENCRYPT_ALWAYS);
else if (!strcasecmp(value, "required"))
cupsSetEncryption(HTTP_ENCRYPT_REQUIRED);
else if (!strcasecmp(value, "never"))
cupsSetEncryption(HTTP_ENCRYPT_NEVER);
else if (!strcasecmp(value, "ifrequested"))
cupsSetEncryption(HTTP_ENCRYPT_IF_REQUESTED);
else
{
_cupsLangPrintf(stderr,
_("ERROR: Unknown encryption option value \"%s\"!\n"),
value);
}
}
else if (!strcasecmp(name, "version"))
{
if (!strcmp(value, "1.0"))
version = 0;
else if (!strcmp(value, "1.1"))
version = 1;
else
{
_cupsLangPrintf(stderr,
_("ERROR: Unknown version option value \"%s\"!\n"),
value);
}
}
#ifdef HAVE_LIBZ
else if (!strcasecmp(name, "compression"))
{
compression = !strcasecmp(value, "true") ||
!strcasecmp(value, "yes") ||
!strcasecmp(value, "on") ||
!strcasecmp(value, "gzip");
}
#endif
else if (!strcasecmp(name, "contimeout"))
{
if (atoi(value) > 0)
contimeout = atoi(value);
}
else
{
_cupsLangPrintf(stderr,
_("ERROR: Unknown option \"%s\" with value \"%s\"!\n"),
name, value);
}
}
}
if (argc == 6)
{
int fd;
cups_file_t *fp;
char buffer[8192];
int bytes;
if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0)
{
perror("ERROR: unable to create temporary file");
return (CUPS_BACKEND_FAILED);
}
if ((fp = cupsFileOpenFd(fd, compression ? "w9" : "w")) == NULL)
{
perror("ERROR: unable to open temporary file");
close(fd);
unlink(tmpfilename);
return (CUPS_BACKEND_FAILED);
}
while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0)
if (cupsFileWrite(fp, buffer, bytes) < bytes)
{
perror("ERROR: unable to write to temporary file");
cupsFileClose(fp);
unlink(tmpfilename);
return (CUPS_BACKEND_FAILED);
}
cupsFileClose(fp);
filename = tmpfilename;
num_files = 1;
files = &filename;
send_options = 0;
}
else
{
num_files = argc - 6;
files = argv + 6;
send_options = 1;
#ifdef HAVE_LIBZ
if (compression)
compress_files(num_files, files);
#endif
}
fprintf(stderr, "DEBUG: %d files to send in job...\n", num_files);
cupsSetPasswordCB(password_cb);
if (username[0])
{
if ((password = strchr(username, ':')) != NULL)
*password++ = '\0';
cupsSetUser(username);
}
else if (!getuid())
{
const char *ptr = getenv("AUTH_USERNAME");
if (ptr)
cupsSetUser(ptr);
password = getenv("AUTH_PASSWORD");
}
delay = 5;
recoverable = 0;
start_time = time(NULL);
fputs("STATE: +connecting-to-device\n", stderr);
do
{
_cupsLangPrintf(stderr, _("INFO: Connecting to %s on port %d...\n"),
hostname, port);
if ((http = httpConnectEncrypt(hostname, port, cupsEncryption())) == NULL)
{
if (job_cancelled)
break;
if (getenv("CLASS") != NULL)
{
_cupsLangPuts(stderr,
_("INFO: Unable to contact printer, queuing on next "
"printer in class...\n"));
if (argc == 6 || strcmp(filename, argv[6]))
unlink(filename);
sleep(5);
return (CUPS_BACKEND_FAILED);
}
if (errno == ECONNREFUSED || errno == EHOSTDOWN ||
errno == EHOSTUNREACH)
{
if (contimeout && (time(NULL) - start_time) > contimeout)
{
_cupsLangPuts(stderr, _("ERROR: Printer not responding!\n"));
return (CUPS_BACKEND_FAILED);
}
recoverable = 1;
_cupsLangPrintf(stderr,
_("WARNING: recoverable: Network host \'%s\' is busy; "
"will retry in %d seconds...\n"),
hostname, delay);
sleep(delay);
if (delay < 30)
delay += 5;
}
else if (h_errno)
{
_cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'!\n"),
hostname);
return (CUPS_BACKEND_STOP);
}
else
{
recoverable = 1;
fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(errno));
_cupsLangPuts(stderr,
_("ERROR: recoverable: Unable to connect to printer; will "
"retry in 30 seconds...\n"));
sleep(30);
}
if (job_cancelled)
break;
}
}
while (http == NULL);
if (job_cancelled)
{
if (argc == 6 || strcmp(filename, argv[6]))
unlink(filename);
return (CUPS_BACKEND_FAILED);
}
fputs("STATE: -connecting-to-device\n", stderr);
_cupsLangPrintf(stderr, _("INFO: Connected to %s...\n"), hostname);
#ifdef AF_INET6
if (http->hostaddr->addr.sa_family == AF_INET6)
fprintf(stderr, "DEBUG: Connected to [%s]:%d (IPv6)...\n",
httpAddrString(http->hostaddr, addrname, sizeof(addrname)),
ntohs(http->hostaddr->ipv6.sin6_port));
else
#endif
if (http->hostaddr->addr.sa_family == AF_INET)
fprintf(stderr, "DEBUG: Connected to %s:%d (IPv4)...\n",
httpAddrString(http->hostaddr, addrname, sizeof(addrname)),
ntohs(http->hostaddr->ipv4.sin_port));
snprintf(uri, sizeof(uri), "%s://%s:%d%s", method, hostname, port, resource);
copies_sup = NULL;
format_sup = NULL;
supported = NULL;
do
{
request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes", sizeof(pattrs) / sizeof(pattrs[0]),
NULL, pattrs);
fputs("DEBUG: Getting supported attributes...\n", stderr);
if ((supported = cupsDoRequest(http, request, resource)) == NULL)
ipp_status = cupsLastError();
else
ipp_status = supported->request.status.status_code;
if (ipp_status > IPP_OK_CONFLICT)
{
if (ipp_status == IPP_PRINTER_BUSY ||
ipp_status == IPP_SERVICE_UNAVAILABLE)
{
if (contimeout && (time(NULL) - start_time) > contimeout)
{
_cupsLangPuts(stderr, _("ERROR: Printer not responding!\n"));
return (CUPS_BACKEND_FAILED);
}
recoverable = 1;
_cupsLangPrintf(stderr,
_("WARNING: recoverable: Network host \'%s\' is busy; "
"will retry in %d seconds...\n"),
hostname, delay);
report_printer_state(supported, 0);
sleep(delay);
if (delay < 30)
delay += 5;
}
else if ((ipp_status == IPP_BAD_REQUEST ||
ipp_status == IPP_VERSION_NOT_SUPPORTED) && version == 1)
{
_cupsLangPuts(stderr,
_("INFO: Printer does not support IPP/1.1, trying "
"IPP/1.0...\n"));
version = 0;
httpReconnect(http);
}
else if (ipp_status == IPP_NOT_FOUND)
{
_cupsLangPuts(stderr, _("ERROR: Destination printer does not exist!\n"));
if (supported)
ippDelete(supported);
return (CUPS_BACKEND_STOP);
}
else
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to get printer status (%s)!\n"),
cupsLastErrorString());
sleep(10);
}
if (supported)
ippDelete(supported);
continue;
}
else if ((copies_sup = ippFindAttribute(supported, "copies-supported",
IPP_TAG_RANGE)) != NULL)
{
if (copies_sup->values[0].range.upper <= 1)
copies_sup = NULL;
}
format_sup = ippFindAttribute(supported, "document-format-supported",
IPP_TAG_MIMETYPE);
if (format_sup)
{
fprintf(stderr, "DEBUG: document-format-supported (%d values)\n",
format_sup->num_values);
for (i = 0; i < format_sup->num_values; i ++)
fprintf(stderr, "DEBUG: [%d] = \"%s\"\n", i,
format_sup->values[i].string.text);
}
report_printer_state(supported, 0);
}
while (ipp_status > IPP_OK_CONFLICT);
if (getenv("CLASS") != NULL)
{
printer_state = ippFindAttribute(supported, "printer-state",
IPP_TAG_ENUM);
printer_accepting = ippFindAttribute(supported, "printer-is-accepting-jobs",
IPP_TAG_BOOLEAN);
if (printer_state == NULL ||
(printer_state->values[0].integer > IPP_PRINTER_PROCESSING &&
waitprinter) ||
printer_accepting == NULL ||
!printer_accepting->values[0].boolean)
{
_cupsLangPuts(stderr,
_("INFO: Unable to contact printer, queuing on next "
"printer in class...\n"));
ippDelete(supported);
httpClose(http);
if (argc == 6 || strcmp(filename, argv[6]))
unlink(filename);
sleep(5);
return (CUPS_BACKEND_FAILED);
}
}
if (recoverable)
{
fputs("INFO: recovered: \n", stderr);
sleep(5);
}
copies = atoi(argv[4]);
if (copies_sup || argc < 7)
{
copies_remaining = 1;
if (argc < 7)
copies = 1;
}
else
copies_remaining = copies;
job_id = 0;
while (copies_remaining > 0)
{
if (job_cancelled)
break;
if (num_files > 1)
request = ippNewRequest(IPP_CREATE_JOB);
else
request = ippNewRequest(IPP_PRINT_JOB);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
fprintf(stderr, "DEBUG: printer-uri = \"%s\"\n", uri);
if (argv[2][0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, argv[2]);
fprintf(stderr, "DEBUG: requesting-user-name = \"%s\"\n", argv[2]);
if (argv[3][0] && copies_sup)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
argv[3]);
fprintf(stderr, "DEBUG: job-name = \"%s\"\n", argv[3]);
#ifdef HAVE_LIBZ
if (compression)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"compression", NULL, "gzip");
#endif
options = NULL;
num_options = cupsParseOptions(argv[5], 0, &options);
#ifdef __APPLE__
if (!strcasecmp(content_type, "application/pictwps") && num_files == 1)
{
if (format_sup != NULL)
{
for (i = 0; i < format_sup->num_values; i ++)
if (!strcasecmp(content_type, format_sup->values[i].string.text))
break;
}
if (format_sup == NULL || i >= format_sup->num_values)
{
if (run_pictwps_filter(argv, filename))
return (CUPS_BACKEND_FAILED);
filename = pstmpname;
final_content_type = "application/postscript";
copies = 1;
copies_remaining = 1;
send_options = 0;
}
}
#endif
if (format_sup != NULL)
{
for (i = 0; i < format_sup->num_values; i ++)
if (!strcasecmp(final_content_type, format_sup->values[i].string.text))
break;
if (i < format_sup->num_values)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
"document-format", NULL, final_content_type);
}
if (copies_sup && version > 0 && send_options)
{
cupsEncodeOptions(request, num_options, options);
ippAddInteger(request, IPP_TAG_JOB, IPP_TAG_INTEGER, "copies",
copies);
}
cupsFreeOptions(num_options, options);
if (!copies_sup)
httpReconnect(http);
if (num_files > 1)
response = cupsDoRequest(http, request, resource);
else
response = cupsDoFileRequest(http, request, resource, files[0]);
ipp_status = cupsLastError();
if (ipp_status > IPP_OK_CONFLICT)
{
job_id = 0;
if (job_cancelled)
break;
if (ipp_status == IPP_SERVICE_UNAVAILABLE ||
ipp_status == IPP_PRINTER_BUSY)
{
_cupsLangPuts(stderr,
_("INFO: Printer busy; will retry in 10 seconds...\n"));
sleep(10);
}
else if ((ipp_status == IPP_BAD_REQUEST ||
ipp_status == IPP_VERSION_NOT_SUPPORTED) && version == 1)
{
_cupsLangPuts(stderr,
_("INFO: Printer does not support IPP/1.1, trying "
"IPP/1.0...\n"));
version = 0;
httpReconnect(http);
}
else
_cupsLangPrintf(stderr, _("ERROR: Print file was not accepted (%s)!\n"),
cupsLastErrorString());
}
else if ((job_id_attr = ippFindAttribute(response, "job-id",
IPP_TAG_INTEGER)) == NULL)
{
_cupsLangPuts(stderr,
_("NOTICE: Print file accepted - job ID unknown.\n"));
job_id = 0;
}
else
{
job_id = job_id_attr->values[0].integer;
_cupsLangPrintf(stderr, _("NOTICE: Print file accepted - job ID %d.\n"),
job_id);
}
ippDelete(response);
if (job_cancelled)
break;
if (job_id && num_files > 1)
{
for (i = 0; i < num_files; i ++)
{
request = ippNewRequest(IPP_SEND_DOCUMENT);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id",
job_id);
if (argv[2][0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, argv[2]);
if ((i + 1) == num_files)
ippAddBoolean(request, IPP_TAG_OPERATION, "last-document", 1);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
"document-format", NULL, content_type);
ippDelete(cupsDoFileRequest(http, request, resource, files[i]));
if (cupsLastError() > IPP_OK_CONFLICT)
{
ipp_status = cupsLastError();
_cupsLangPrintf(stderr,
_("ERROR: Unable to add file %d to job: %s\n"),
job_id, cupsLastErrorString());
break;
}
}
}
if (ipp_status <= IPP_OK_CONFLICT && argc > 6)
{
fprintf(stderr, "PAGE: 1 %d\n", copies_sup ? atoi(argv[4]) : 1);
copies_remaining --;
}
else if (ipp_status == IPP_SERVICE_UNAVAILABLE ||
ipp_status == IPP_PRINTER_BUSY)
break;
else
copies_remaining --;
if (!job_id || !waitjob)
continue;
_cupsLangPuts(stderr, _("INFO: Waiting for job to complete...\n"));
for (delay = 1; !job_cancelled;)
{
request = ippNewRequest(IPP_GET_JOB_ATTRIBUTES);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id",
job_id);
if (argv[2][0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, argv[2]);
ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes", sizeof(jattrs) / sizeof(jattrs[0]),
NULL, jattrs);
if (!copies_sup)
httpReconnect(http);
response = cupsDoRequest(http, request, resource);
ipp_status = cupsLastError();
if (ipp_status == IPP_NOT_FOUND)
{
ippDelete(response);
ipp_status = IPP_OK;
break;
}
if (ipp_status > IPP_OK_CONFLICT)
{
if (ipp_status != IPP_SERVICE_UNAVAILABLE &&
ipp_status != IPP_PRINTER_BUSY)
{
ippDelete(response);
_cupsLangPrintf(stderr,
_("ERROR: Unable to get job %d attributes (%s)!\n"),
job_id, cupsLastErrorString());
break;
}
}
if (response)
{
if ((job_state = ippFindAttribute(response, "job-state",
IPP_TAG_ENUM)) != NULL)
{
if (job_state->values[0].integer > IPP_JOB_STOPPED)
{
if ((job_sheets = ippFindAttribute(response,
"job-media-sheets-completed",
IPP_TAG_INTEGER)) != NULL)
fprintf(stderr, "PAGE: total %d\n",
job_sheets->values[0].integer);
ippDelete(response);
break;
}
}
}
ippDelete(response);
check_printer_state(http, uri, resource, argv[2], version, job_id);
sleep(delay);
delay ++;
if (delay > 10)
delay = 1;
}
}
if (job_cancelled && job_id)
cancel_job(http, uri, job_id, resource, argv[2], version);
check_printer_state(http, uri, resource, argv[2], version, job_id);
httpClose(http);
ippDelete(supported);
if (tmpfilename[0])
unlink(tmpfilename);
#ifdef HAVE_LIBZ
if (compression)
{
for (i = 0; i < num_files; i ++)
unlink(files[i]);
}
#endif
#ifdef __APPLE__
if (pstmpname[0])
unlink(pstmpname);
#endif
if (ipp_status == IPP_NOT_AUTHORIZED)
{
fputs("ATTR: auth-info-required=negotiate\n", stderr);
return (CUPS_BACKEND_AUTH_REQUIRED);
}
else if (ipp_status > IPP_OK_CONFLICT)
return (CUPS_BACKEND_FAILED);
else
return (CUPS_BACKEND_OK);
}
static void
cancel_job(http_t *http,
const char *uri,
int id,
const char *resource,
const char *user,
int version)
{
ipp_t *request;
_cupsLangPuts(stderr, _("INFO: Canceling print job...\n"));
request = ippNewRequest(IPP_CANCEL_JOB);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id", id);
if (user && user[0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, user);
ippDelete(cupsDoRequest(http, request, resource));
if (cupsLastError() > IPP_OK_CONFLICT)
_cupsLangPrintf(stderr, _("ERROR: Unable to cancel job %d: %s\n"), id,
cupsLastErrorString());
}
static void
check_printer_state(
http_t *http,
const char *uri,
const char *resource,
const char *user,
int version,
int job_id)
{
ipp_t *request,
*response;
static const char * const attrs[] =
{
"printer-state-message",
"printer-state-reasons"
};
request = ippNewRequest(IPP_GET_PRINTER_ATTRIBUTES);
request->request.op.version[1] = version;
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, uri);
if (user && user[0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, user);
ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes",
(int)(sizeof(attrs) / sizeof(attrs[0])), NULL, attrs);
if ((response = cupsDoRequest(http, request, resource)) != NULL)
{
report_printer_state(response, job_id);
ippDelete(response);
}
}
#ifdef HAVE_LIBZ
static void
compress_files(int num_files,
char **files)
{
int i,
fd;
ssize_t bytes;
size_t total;
cups_file_t *in,
*out;
struct stat outinfo;
char filename[1024],
buffer[32768];
fprintf(stderr, "DEBUG: Compressing %d job files...\n", num_files);
for (i = 0; i < num_files; i ++)
{
if ((fd = cupsTempFd(filename, sizeof(filename))) < 0)
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to create temporary compressed print "
"file: %s\n"), strerror(errno));
exit(CUPS_BACKEND_FAILED);
}
if ((out = cupsFileOpenFd(fd, "w9")) == NULL)
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to open temporary compressed print "
"file: %s\n"), strerror(errno));
exit(CUPS_BACKEND_FAILED);
}
if ((in = cupsFileOpen(files[i], "r")) == NULL)
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to open print file \"%s\": %s\n"),
files[i], strerror(errno));
cupsFileClose(out);
exit(CUPS_BACKEND_FAILED);
}
total = 0;
while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0)
if (cupsFileWrite(out, buffer, bytes) < bytes)
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to write %d bytes to \"%s\": %s\n"),
(int)bytes, filename, strerror(errno));
cupsFileClose(in);
cupsFileClose(out);
exit(CUPS_BACKEND_FAILED);
}
else
total += bytes;
cupsFileClose(out);
cupsFileClose(in);
files[i] = strdup(filename);
if (!stat(filename, &outinfo))
fprintf(stderr,
"DEBUG: File %d compressed to %.1f%% of original size, "
CUPS_LLFMT " bytes...\n",
i + 1, 100.0 * outinfo.st_size / total,
CUPS_LLCAST outinfo.st_size);
}
}
#endif
static const char *
password_cb(const char *prompt)
{
(void)prompt;
if (password && password_tries < 3)
{
password_tries ++;
return (password);
}
else
{
if (tmpfilename[0])
unlink(tmpfilename);
#ifdef __APPLE__
if (pstmpname[0])
unlink(pstmpname);
#endif
fputs("ATTR: auth-info-required=username,password\n", stderr);
exit(CUPS_BACKEND_AUTH_REQUIRED);
return (NULL);
}
}
static int
report_printer_state(ipp_t *ipp,
int job_id)
{
int i;
int count;
ipp_attribute_t *psm,
*reasons;
const char *reason;
const char *message;
char unknown[1024];
const char *prefix;
char state[1024];
cups_lang_t *language;
if ((psm = ippFindAttribute(ipp, "printer-state-message",
IPP_TAG_TEXT)) != NULL)
fprintf(stderr, "INFO: %s\n", psm->values[0].string.text);
if ((reasons = ippFindAttribute(ipp, "printer-state-reasons",
IPP_TAG_KEYWORD)) == NULL)
return (0);
state[0] = '\0';
prefix = "STATE: ";
language = cupsLangDefault();
for (i = 0, count = 0; i < reasons->num_values; i ++)
{
reason = reasons->values[i].string.text;
if (job_id == 0 || strcmp(reason, "paused"))
{
strlcat(state, prefix, sizeof(state));
strlcat(state, reason, sizeof(state));
prefix = ",";
}
message = "";
if (!strncmp(reason, "media-needed", 12))
message = _("Media tray needs to be filled.");
else if (!strncmp(reason, "media-jam", 9))
message = _("Media jam!");
else if (!strncmp(reason, "moving-to-paused", 16) ||
!strncmp(reason, "paused", 6) ||
!strncmp(reason, "shutdown", 8))
message = _("Printer off-line.");
else if (!strncmp(reason, "toner-low", 9))
message = _("Toner low.");
else if (!strncmp(reason, "toner-empty", 11))
message = _("Out of toner!");
else if (!strncmp(reason, "cover-open", 10))
message = _("Cover open.");
else if (!strncmp(reason, "interlock-open", 14))
message = _("Interlock open.");
else if (!strncmp(reason, "door-open", 9))
message = _("Door open.");
else if (!strncmp(reason, "input-tray-missing", 18))
message = _("Media tray missing!");
else if (!strncmp(reason, "media-low", 9))
message = _("Media tray almost empty.");
else if (!strncmp(reason, "media-empty", 11))
message = _("Media tray empty!");
else if (!strncmp(reason, "output-tray-missing", 19))
message = _("Output tray missing!");
else if (!strncmp(reason, "output-area-almost-full", 23))
message = _("Output bin almost full.");
else if (!strncmp(reason, "output-area-full", 16))
message = _("Output bin full!");
else if (!strncmp(reason, "marker-supply-low", 17))
message = _("Ink/toner almost empty.");
else if (!strncmp(reason, "marker-supply-empty", 19))
message = _("Ink/toner empty!");
else if (!strncmp(reason, "marker-waste-almost-full", 24))
message = _("Ink/toner waste bin almost full.");
else if (!strncmp(reason, "marker-waste-full", 17))
message = _("Ink/toner waste bin full!");
else if (!strncmp(reason, "fuser-over-temp", 15))
message = _("Fuser temperature high!");
else if (!strncmp(reason, "fuser-under-temp", 16))
message = _("Fuser temperature low!");
else if (!strncmp(reason, "opc-near-eol", 12))
message = _("OPC almost at end-of-life.");
else if (!strncmp(reason, "opc-life-over", 13))
message = _("OPC at end-of-life!");
else if (!strncmp(reason, "developer-low", 13))
message = _("Developer almost empty.");
else if (!strncmp(reason, "developer-empty", 15))
message = _("Developer empty!");
else if (strstr(reason, "error") != NULL)
{
message = unknown;
snprintf(unknown, sizeof(unknown), _("Unknown printer error (%s)!"),
reason);
}
if (message[0])
{
count ++;
if (strstr(reasons->values[i].string.text, "error"))
fprintf(stderr, "ERROR: %s\n", _cupsLangString(language, message));
else if (strstr(reasons->values[i].string.text, "warning"))
fprintf(stderr, "WARNING: %s\n", _cupsLangString(language, message));
else
fprintf(stderr, "INFO: %s\n", _cupsLangString(language, message));
}
}
fprintf(stderr, "%s\n", state);
return (count);
}
#ifdef __APPLE__
static int
run_pictwps_filter(char **argv,
const char *filename)
{
struct stat fileinfo;
const char *ppdfile;
int pid;
int fd;
int status;
const char *printer;
static char ppdenv[1024];
printer = getenv("PRINTER");
if (!printer)
{
_cupsLangPuts(stderr,
_("ERROR: PRINTER environment variable not defined!\n"));
return (-1);
}
if ((ppdfile = cupsGetPPD(printer)) == NULL)
{
_cupsLangPrintf(stderr,
_("ERROR: Unable to get PPD file for printer \"%s\" - "
"%s.\n"), printer, cupsLastErrorString());
}
else
{
snprintf(ppdenv, sizeof(ppdenv), "PPD=%s", ppdfile);
putenv(ppdenv);
}
if ((fd = cupsTempFd(pstmpname, sizeof(pstmpname))) < 0)
{
_cupsLangPrintf(stderr, _("ERROR: Unable to create temporary file - %s.\n"),
strerror(errno));
if (ppdfile)
unlink(ppdfile);
return (-1);
}
if (argv[6])
stat(argv[6], &fileinfo);
else
{
fileinfo.st_uid = 1;
fileinfo.st_gid = 80;
}
if (ppdfile)
chown(ppdfile, fileinfo.st_uid, fileinfo.st_gid);
fchown(fd, fileinfo.st_uid, fileinfo.st_gid);
if ((pid = fork()) == 0)
{
close(1);
dup(fd);
close(fd);
if (!getuid())
{
setgid(fileinfo.st_gid);
setuid(fileinfo.st_uid);
}
execlp("pictwpstops", printer, argv[1], argv[2], argv[3], argv[4], argv[5],
filename, NULL);
_cupsLangPrintf(stderr, _("ERROR: Unable to exec pictwpstops: %s\n"),
strerror(errno));
return (errno);
}
close(fd);
if (pid < 0)
{
_cupsLangPrintf(stderr, _("ERROR: Unable to fork pictwpstops: %s\n"),
strerror(errno));
unlink(filename);
if (ppdfile)
unlink(ppdfile);
return (-1);
}
if (wait(&status) < 0)
{
_cupsLangPrintf(stderr, _("ERROR: Unable to wait for pictwpstops: %s\n"),
strerror(errno));
close(fd);
unlink(filename);
if (ppdfile)
unlink(ppdfile);
return (-1);
}
if (ppdfile)
unlink(ppdfile);
close(fd);
if (status)
{
if (status >= 256)
_cupsLangPrintf(stderr, _("ERROR: pictwpstops exited with status %d!\n"),
status / 256);
else
_cupsLangPrintf(stderr, _("ERROR: pictwpstops exited on signal %d!\n"),
status);
unlink(filename);
return (status);
}
return (0);
}
#endif
static void
sigterm_handler(int sig)
{
(void)sig;
if (!job_cancelled)
{
job_cancelled = 1;
return;
}
if (tmpfilename[0])
unlink(tmpfilename);
#ifdef __APPLE__
if (pstmpname[0])
unlink(pstmpname);
#endif
exit(1);
}