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cups/backend/ipp.c

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/*
* IPP backend for CUPS.
*
* Copyright © 2007-2019 by Apple Inc.
* Copyright © 1997-2007 by Easy Software Products, all rights reserved.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more
* information.
*/
/*
* Include necessary headers.
*/
#include "backend-private.h"
#include <cups/ppd-private.h>
#include <cups/array-private.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#if defined(HAVE_GSSAPI) && defined(HAVE_XPC)
# include <xpc/xpc.h>
# define kPMPrintUIToolAgent "com.apple.printuitool.agent"
# define kPMStartJob 100
# define kPMWaitForJob 101
extern void xpc_connection_set_target_uid(xpc_connection_t connection,
uid_t uid);
#endif /* HAVE_GSSAPI && HAVE_XPC */
/*
* Bits for job-state-reasons we care about...
*/
#define _CUPS_JSR_ACCOUNT_AUTHORIZATION_FAILED 0x01
#define _CUPS_JSR_ACCOUNT_CLOSED 0x02
#define _CUPS_JSR_ACCOUNT_INFO_NEEDED 0x04
#define _CUPS_JSR_ACCOUNT_LIMIT_REACHED 0x08
#define _CUPS_JSR_JOB_PASSWORD_WAIT 0x10
#define _CUPS_JSR_JOB_RELEASE_WAIT 0x20
#define _CUPS_JSR_DOCUMENT_FORMAT_ERROR 0x40
#define _CUPS_JSR_DOCUMENT_UNPRINTABLE 0x80
/*
* Types...
*/
typedef struct _cups_monitor_s /**** Monitoring data ****/
{
const char *uri, /* Printer URI */
*hostname, /* Hostname */
*user, /* Username */
*resource; /* Resource path */
int port, /* Port number */
version, /* IPP version */
job_id, /* Job ID for submitted job */
job_reasons, /* Job state reasons bits */
create_job, /* Support Create-Job? */
get_job_attrs; /* Support Get-Job-Attributes? */
const char *job_name; /* Job name for submitted job */
http_encryption_t encryption; /* Use encryption? */
ipp_jstate_t job_state; /* Current job state */
ipp_pstate_t printer_state; /* Current printer state */
int retryable; /* Is this a job that should be retried? */
} _cups_monitor_t;
/*
* Globals...
*/
static const char *auth_info_required;
/* New auth-info-required value */
#if defined(HAVE_GSSAPI) && defined(HAVE_XPC)
static pid_t child_pid = 0; /* Child process ID */
#endif /* HAVE_GSSAPI && HAVE_XPC */
static const char * const jattrs[] = /* Job attributes we want */
{
"job-id",
"job-impressions-completed",
"job-media-sheets-completed",
"job-name",
"job-originating-user-name",
"job-state",
"job-state-reasons"
};
static int job_canceled = 0,
/* Job cancelled? */
uri_credentials = 0;
/* Credentials supplied in URI? */
static char username[256] = "",
/* Username for device URI */
*password = NULL;
/* Password for device URI */
static const char * const pattrs[] = /* Printer attributes we want */
{
#ifdef HAVE_LIBZ
"compression-supported",
#endif /* HAVE_LIBZ */
"copies-supported",
"cups-version",
"document-format-supported",
"job-password-encryption-supported",
"marker-colors",
"marker-high-levels",
"marker-levels",
"marker-low-levels",
"marker-message",
"marker-names",
"marker-types",
"media-col-supported",
"multiple-document-handling-supported",
"operations-supported",
"print-color-mode-supported",
"printer-alert",
"printer-alert-description",
"printer-is-accepting-jobs",
"printer-mandatory-job-attributes",
"printer-state",
"printer-state-message",
"printer-state-reasons"
};
static const char * const remote_job_states[] =
{ /* Remote job state keywords */
"+cups-remote-pending",
"+cups-remote-pending-held",
"+cups-remote-processing",
"+cups-remote-stopped",
"+cups-remote-canceled",
"+cups-remote-aborted",
"+cups-remote-completed"
};
static _cups_mutex_t report_mutex = _CUPS_MUTEX_INITIALIZER;
/* Mutex to control access */
static int num_attr_cache = 0;
/* Number of cached attributes */
static cups_option_t *attr_cache = NULL;
/* Cached attributes */
static cups_array_t *state_reasons; /* Array of printe-state-reasons keywords */
static char tmpfilename[1024] = "";
/* Temporary spool file name */
static char mandatory_attrs[1024] = "";
/* cupsMandatory value */
/*
* Local functions...
*/
static void cancel_job(http_t *http, const char *uri, int id,
const char *resource, const char *user,
int version);
static ipp_pstate_t check_printer_state(http_t *http, const char *uri,
const char *resource,
const char *user, int version);
static void debug_attributes(ipp_t *ipp);
static void *monitor_printer(_cups_monitor_t *monitor);
static ipp_t *new_request(ipp_op_t op, int version, const char *uri,
const char *user, const char *title,
int num_options, cups_option_t *options,
const char *compression, int copies,
const char *format, _ppd_cache_t *pc,
ppd_file_t *ppd,
ipp_attribute_t *media_col_sup,
ipp_attribute_t *doc_handling_sup,
ipp_attribute_t *print_color_mode_sup);
static const char *password_cb(const char *prompt, http_t *http,
const char *method, const char *resource,
int *user_data);
static const char *quote_string(const char *s, char *q, size_t qsize);
static void report_attr(ipp_attribute_t *attr);
static void report_printer_state(ipp_t *ipp);
#if defined(HAVE_GSSAPI) && defined(HAVE_XPC)
static int run_as_user(char *argv[], uid_t uid,
const char *device_uri, int fd);
#endif /* HAVE_GSSAPI && HAVE_XPC */
static void sigterm_handler(int sig);
static int timeout_cb(http_t *http, void *user_data);
static void update_reasons(ipp_attribute_t *attr, const char *s);
/*
* 'main()' - Send a file to the printer or server.
*
* Usage:
*
* printer-uri job-id user title copies options [file]
*/
int /* O - Exit status */
main(int argc, /* I - Number of command-line args */
char *argv[]) /* I - Command-line arguments */
{
int i; /* Looping var */
int send_options; /* Send job options? */
int num_options; /* Number of printer options */
cups_option_t *options; /* Printer options */
const char *device_uri; /* Device URI */
char scheme[255], /* Scheme in URI */
hostname[1024], /* Hostname */
resource[1024], /* Resource info (printer name) */
addrname[256], /* Address name */
*optptr, /* Pointer to URI options */
*name, /* Name of option */
*value, /* Value of option */
sep; /* Separator character */
int password_tries = 0; /* Password tries */
http_addrlist_t *addrlist; /* Address of printer */
int snmp_enabled = 1; /* Is SNMP enabled? */
int snmp_fd, /* SNMP socket */
start_count, /* Page count via SNMP at start */
page_count, /* Page count via SNMP */
have_supplies; /* Printer supports supply levels? */
int num_files; /* Number of files to print */
char **files, /* Files to print */
*compatfile = NULL; /* Compatibility filename */
off_t compatsize = 0; /* Size of compatibility file */
int port; /* Port number (not used) */
char uri[HTTP_MAX_URI]; /* Updated URI without user/pass */
char print_job_name[1024]; /* Update job-name for Print-Job */
http_status_t http_status; /* Status of HTTP request */
ipp_status_t ipp_status; /* Status of IPP request */
http_t *http; /* HTTP connection */
ipp_t *request, /* IPP request */
*response, /* IPP response */
*supported; /* get-printer-attributes response */
time_t start_time; /* Time of first connect */
int contimeout; /* Connection timeout */
int delay, /* Delay for retries */
prev_delay; /* Previous delay */
const char *compression; /* Compression mode */
int waitjob, /* Wait for job complete? */
waitjob_tries = 0, /* Number of times we've waited */
waitprinter; /* Wait for printer ready? */
_cups_monitor_t monitor; /* Monitoring data */
ipp_attribute_t *job_id_attr; /* job-id attribute */
int job_id; /* job-id value */
ipp_attribute_t *job_sheets; /* job-media-sheets-completed */
ipp_attribute_t *job_state; /* job-state */
#ifdef HAVE_LIBZ
ipp_attribute_t *compression_sup; /* compression-supported */
#endif /* HAVE_LIBZ */
ipp_attribute_t *copies_sup; /* copies-supported */
ipp_attribute_t *cups_version; /* cups-version */
ipp_attribute_t *encryption_sup; /* job-password-encryption-supported */
ipp_attribute_t *format_sup; /* document-format-supported */
ipp_attribute_t *job_auth; /* job-authorization-uri */
ipp_attribute_t *media_col_sup; /* media-col-supported */
ipp_attribute_t *operations_sup; /* operations-supported */
ipp_attribute_t *doc_handling_sup; /* multiple-document-handling-supported */
ipp_attribute_t *printer_state; /* printer-state attribute */
ipp_attribute_t *printer_accepting; /* printer-is-accepting-jobs */
ipp_attribute_t *print_color_mode_sup;/* Does printer support print-color-mode? */
int create_job = 0, /* Does printer support Create-Job? */
get_job_attrs = 0, /* Does printer support Get-Job-Attributes? */
send_document = 0, /* Does printer support Send-Document? */
validate_job = 0, /* Does printer support Validate-Job? */
copies, /* Number of copies for job */
copies_remaining; /* Number of copies remaining */
const char *content_type, /* CONTENT_TYPE environment variable */
*final_content_type, /* FINAL_CONTENT_TYPE environment var */
*document_format; /* document-format value */
int fd; /* File descriptor */
off_t bytes = 0; /* Bytes copied */
char buffer[16384]; /* Copy buffer */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
struct sigaction action; /* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
int version; /* IPP version */
ppd_file_t *ppd = NULL; /* PPD file */
_ppd_cache_t *pc = NULL; /* PPD cache and mapping data */
fd_set input; /* Input set for select() */
/*
* Make sure status messages are not buffered...
*/
setbuf(stderr, NULL);
/*
* Ignore SIGPIPE and catch SIGTERM signals...
*/
#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 /* HAVE_SIGSET */
/*
* Check command-line...
*/
if (argc == 1)
{
char *s;
if ((s = strrchr(argv[0], '/')) != NULL)
s ++;
else
s = argv[0];
printf("network %s \"Unknown\" \"%s (%s)\"\n",
s, _cupsLangString(cupsLangDefault(),
_("Internet Printing Protocol")), s);
return (CUPS_BACKEND_OK);
}
else if (argc < 6)
{
_cupsLangPrintf(stderr,
_("Usage: %s job-id user title copies options [file]"),
argv[0]);
return (CUPS_BACKEND_STOP);
}
/*
* Get the device URI...
*/
while ((device_uri = cupsBackendDeviceURI(argv)) == NULL)
{
_cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer."));
sleep(10);
if (getenv("CLASS") != NULL)
return (CUPS_BACKEND_FAILED);
}
if ((auth_info_required = getenv("AUTH_INFO_REQUIRED")) == NULL)
auth_info_required = "none";
state_reasons = _cupsArrayNewStrings(getenv("PRINTER_STATE_REASONS"), ',');
#ifdef HAVE_GSSAPI
/*
* For Kerberos, become the printing user (if we can) to get the credentials
* that way.
*/
if (!getuid() && (value = getenv("AUTH_UID")) != NULL)
{
uid_t uid = (uid_t)atoi(value);
/* User ID */
# ifdef HAVE_XPC
if (uid > 0)
{
if (argc == 6)
return (run_as_user(argv, uid, device_uri, 0));
else
{
int status = 0; /* Exit status */
for (i = 6; i < argc && !status && !job_canceled; i ++)
{
if ((fd = open(argv[i], O_RDONLY)) >= 0)
{
status = run_as_user(argv, uid, device_uri, fd);
close(fd);
}
else
{
_cupsLangPrintError("ERROR", _("Unable to open print file"));
status = CUPS_BACKEND_FAILED;
}
}
return (status);
}
}
# else /* No XPC, just try to run as the user ID */
if (uid > 0)
setuid(uid);
# endif /* HAVE_XPC */
}
#endif /* HAVE_GSSAPI */
/*
* Get the (final) content type...
*/
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";
}
/*
* Extract the hostname and printer name from the URI...
*/
httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme),
username, sizeof(username), hostname, sizeof(hostname), &port,
resource, sizeof(resource));
if (!port)
port = IPP_PORT; /* Default to port 631 */
if (!strcmp(scheme, "https") || !strcmp(scheme, "ipps"))
cupsSetEncryption(HTTP_ENCRYPTION_ALWAYS);
else
cupsSetEncryption(HTTP_ENCRYPTION_IF_REQUESTED);
/*
* See if there are any options...
*/
compression = NULL;
version = 20;
waitjob = 1;
waitprinter = 1;
contimeout = 7 * 24 * 60 * 60;
if ((optptr = strchr(resource, '?')) != NULL)
{
/*
* Yup, terminate the device name string and move to the first
* character of the optptr...
*/
*optptr++ = '\0';
/*
* Then parse the optptr...
*/
while (*optptr)
{
/*
* Get the name...
*/
name = optptr;
while (*optptr && *optptr != '=' && *optptr != '+' && *optptr != '&')
optptr ++;
if ((sep = *optptr) != '\0')
*optptr++ = '\0';
if (sep == '=')
{
/*
* Get the value...
*/
value = optptr;
while (*optptr && *optptr != '+' && *optptr != '&')
optptr ++;
if (*optptr)
*optptr++ = '\0';
}
else
value = (char *)"";
/*
* Process the option...
*/
if (!_cups_strcasecmp(name, "waitjob"))
{
/*
* Wait for job completion?
*/
waitjob = !_cups_strcasecmp(value, "on") ||
!_cups_strcasecmp(value, "yes") ||
!_cups_strcasecmp(value, "true");
}
else if (!_cups_strcasecmp(name, "waitprinter"))
{
/*
* Wait for printer idle?
*/
waitprinter = !_cups_strcasecmp(value, "on") ||
!_cups_strcasecmp(value, "yes") ||
!_cups_strcasecmp(value, "true");
}
else if (!_cups_strcasecmp(name, "encryption"))
{
/*
* Enable/disable encryption?
*/
if (!_cups_strcasecmp(value, "always"))
cupsSetEncryption(HTTP_ENCRYPTION_ALWAYS);
else if (!_cups_strcasecmp(value, "required"))
cupsSetEncryption(HTTP_ENCRYPTION_REQUIRED);
else if (!_cups_strcasecmp(value, "never"))
cupsSetEncryption(HTTP_ENCRYPTION_NEVER);
else if (!_cups_strcasecmp(value, "ifrequested"))
cupsSetEncryption(HTTP_ENCRYPTION_IF_REQUESTED);
else
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unknown encryption option value: \"%s\"."),
value);
}
}
else if (!_cups_strcasecmp(name, "snmp"))
{
/*
* Enable/disable SNMP stuff...
*/
snmp_enabled = !value[0] || !_cups_strcasecmp(value, "on") ||
!_cups_strcasecmp(value, "yes") ||
!_cups_strcasecmp(value, "true");
}
else if (!_cups_strcasecmp(name, "version"))
{
if (!strcmp(value, "1.0"))
version = 10;
else if (!strcmp(value, "1.1"))
version = 11;
else if (!strcmp(value, "2.0"))
version = 20;
else if (!strcmp(value, "2.1"))
version = 21;
else if (!strcmp(value, "2.2"))
version = 22;
else
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unknown version option value: \"%s\"."),
value);
}
}
#ifdef HAVE_LIBZ
else if (!_cups_strcasecmp(name, "compression"))
{
if (!_cups_strcasecmp(value, "true") || !_cups_strcasecmp(value, "yes") ||
!_cups_strcasecmp(value, "on") || !_cups_strcasecmp(value, "gzip"))
compression = "gzip";
else if (!_cups_strcasecmp(value, "deflate"))
compression = "deflate";
else if (!_cups_strcasecmp(value, "false") ||
!_cups_strcasecmp(value, "no") ||
!_cups_strcasecmp(value, "off") ||
!_cups_strcasecmp(value, "none"))
compression = "none";
}
#endif /* HAVE_LIBZ */
else if (!_cups_strcasecmp(name, "contimeout"))
{
/*
* Set the connection timeout...
*/
if (atoi(value) > 0)
contimeout = atoi(value);
}
else
{
/*
* Unknown option...
*/
_cupsLangPrintFilter(stderr, "ERROR",
_("Unknown option \"%s\" with value \"%s\"."),
name, value);
}
}
}
/*
* If we have 7 arguments, print the file named on the command-line.
* Otherwise, copy stdin to a temporary file and print the temporary
* file.
*/
if (argc == 6)
{
num_files = 0;
files = NULL;
send_options = !_cups_strcasecmp(final_content_type, "application/pdf") ||
!_cups_strcasecmp(final_content_type, "application/vnd.cups-pdf") ||
!_cups_strncasecmp(final_content_type, "image/", 6);
fputs("DEBUG: Sending stdin for job...\n", stderr);
}
else
{
/*
* Point to the files on the command-line...
*/
num_files = argc - 6;
files = argv + 6;
send_options = 1;
fprintf(stderr, "DEBUG: %d files to send in job...\n", num_files);
}
/*
* Set the authentication info, if any...
*/
cupsSetPasswordCB2((cups_password_cb2_t)password_cb, &password_tries);
if (username[0])
{
/*
* Use authentication information in the device URI...
*/
if ((password = strchr(username, ':')) != NULL)
*password++ = '\0';
cupsSetUser(username);
uri_credentials = 1;
}
else
{
/*
* Try loading authentication information from the environment.
*/
const char *ptr = getenv("AUTH_USERNAME");
if (ptr)
{
strlcpy(username, ptr, sizeof(username));
cupsSetUser(ptr);
}
password = getenv("AUTH_PASSWORD");
}
/*
* Try finding the remote server...
*/
start_time = time(NULL);
addrlist = backendLookup(hostname, port, &job_canceled);
http = httpConnect2(hostname, port, addrlist, AF_UNSPEC, cupsEncryption(), 1,
0, NULL);
httpSetTimeout(http, 30.0, timeout_cb, NULL);
/*
* See if the printer supports SNMP...
*/
if (snmp_enabled)
snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family);
else
snmp_fd = -1;
if (snmp_fd >= 0)
have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr),
&start_count, NULL);
else
have_supplies = start_count = 0;
/*
* Wait for data from the filter...
*/
if (num_files == 0)
{
if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB))
return (CUPS_BACKEND_OK);
else if ((bytes = read(0, buffer, sizeof(buffer))) <= 0)
return (CUPS_BACKEND_OK);
}
/*
* Try connecting to the remote server...
*/
delay = _cupsNextDelay(0, &prev_delay);
do
{
fprintf(stderr, "DEBUG: Connecting to %s:%d\n", hostname, port);
_cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer."));
if (httpReconnect2(http, 30000, NULL))
{
int error = errno; /* Connection error */
if (http->status == HTTP_STATUS_CUPS_PKI_ERROR)
update_reasons(NULL, "+cups-certificate-error");
if (job_canceled)
break;
if (getenv("CLASS") != NULL)
{
/*
* If the CLASS environment variable is set, the job was submitted
* to a class and not to a specific queue. In this case, we want
* to abort immediately so that the job can be requeued on the next
* available printer in the class.
*/
_cupsLangPrintFilter(stderr, "INFO",
_("Unable to contact printer, queuing on next "
"printer in class."));
/*
* Sleep 5 seconds to keep the job from requeuing too rapidly...
*/
sleep(5);
update_reasons(NULL, "-connecting-to-device");
return (CUPS_BACKEND_FAILED);
}
fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(errno));
if (errno == ECONNREFUSED || errno == EHOSTDOWN || errno == EHOSTUNREACH || errno == ETIMEDOUT || errno == ENOTCONN)
{
if (contimeout && (time(NULL) - start_time) > contimeout)
{
_cupsLangPrintFilter(stderr, "ERROR",
_("The printer is not responding."));
update_reasons(NULL, "-connecting-to-device");
return (CUPS_BACKEND_FAILED);
}
switch (error)
{
case EHOSTDOWN :
_cupsLangPrintFilter(stderr, "WARNING",
_("The printer may not exist or "
"is unavailable at this time."));
break;
case EHOSTUNREACH :
default :
_cupsLangPrintFilter(stderr, "WARNING",
_("The printer is unreachable at this "
"time."));
break;
case ECONNREFUSED :
_cupsLangPrintFilter(stderr, "WARNING",
_("The printer is in use."));
break;
}
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
}
else
{
_cupsLangPrintFilter(stderr, "ERROR",
_("The printer is not responding."));
sleep(30);
}
if (job_canceled)
break;
}
else
update_reasons(NULL, "-cups-certificate-error");
}
while (http->fd < 0);
if (job_canceled)
return (CUPS_BACKEND_OK);
else if (!http)
return (CUPS_BACKEND_FAILED);
if (httpIsEncrypted(http))
{
/*
* Validate TLS credentials...
*/
cups_array_t *creds; /* TLS credentials */
cups_array_t *lcreds = NULL; /* Loaded credentials */
http_trust_t trust; /* Trust level */
char credinfo[1024], /* Information on credentials */
lcredinfo[1024];/* Information on saved credentials */
static const char * const trusts[] = { NULL, "+cups-pki-invalid", "+cups-pki-changed", "+cups-pki-expired", NULL, "+cups-pki-unknown" };
/* Trust keywords */
static const char * const trust_msgs[] =
{
"Credentials are OK/trusted",
"Credentials are invalid",
"Credentials have changed",
"Credentials are expired",
"Credentials have been renewed",
"Credentials are unknown/new"
};
fputs("DEBUG: Connection is encrypted.\n", stderr);
if (!httpCopyCredentials(http, &creds))
{
trust = httpCredentialsGetTrust(creds, hostname);
httpCredentialsString(creds, credinfo, sizeof(credinfo));
fprintf(stderr, "DEBUG: %s (%s)\n", trust_msgs[trust], cupsLastErrorString());
fprintf(stderr, "DEBUG: Printer credentials: %s\n", credinfo);
if (!httpLoadCredentials(NULL, &lcreds, hostname))
{
httpCredentialsString(lcreds, lcredinfo, sizeof(lcredinfo));
fprintf(stderr, "DEBUG: Stored credentials: %s\n", lcredinfo);
}
else
fputs("DEBUG: No stored credentials.\n", stderr);
update_reasons(NULL, "-cups-pki-invalid,cups-pki-changed,cups-pki-expired,cups-pki-unknown");
if (trusts[trust])
{
update_reasons(NULL, trusts[trust]);
return (CUPS_BACKEND_STOP);
}
if (!lcreds)
{
/*
* Could not load the credentials, let's save the ones we have so we
* can detect changes...
*/
httpSaveCredentials(NULL, creds, hostname);
}
httpFreeCredentials(lcreds);
httpFreeCredentials(creds);
}
else
{
fputs("DEBUG: No printer credentials.\n", stderr);
update_reasons(NULL, "cups-pki-unknown");
return (CUPS_BACKEND_STOP);
}
}
update_reasons(NULL, "-connecting-to-device");
_cupsLangPrintFilter(stderr, "INFO", _("Connected to printer."));
fprintf(stderr, "DEBUG: Connected to %s:%d...\n",
httpAddrString(http->hostaddr, addrname, sizeof(addrname)),
httpAddrPort(http->hostaddr));
/*
* Build a URI for the printer and fill the standard IPP attributes for
* an IPP_PRINT_FILE request. We can't use the URI in argv[0] because it
* might contain username:password information...
*/
httpAssembleURI(HTTP_URI_CODING_ALL, uri, sizeof(uri), scheme, NULL, hostname,
port, resource);
/*
* First validate the destination and see if the device supports multiple
* copies...
*/
#ifdef HAVE_LIBZ
compression_sup = NULL;
#endif /* HAVE_LIBZ */
copies_sup = NULL;
cups_version = NULL;
encryption_sup = NULL;
format_sup = NULL;
media_col_sup = NULL;
supported = NULL;
operations_sup = NULL;
doc_handling_sup = NULL;
print_color_mode_sup = NULL;
do
{
/*
* Check for side-channel requests...
*/
backendCheckSideChannel(snmp_fd, http->hostaddr);
/*
* Build the IPP request...
*/
request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
ippSetVersion(request, version / 10, version % 10);
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);
/*
* Do the request...
*/
fputs("DEBUG: Getting supported attributes...\n", stderr);
if (http->version < HTTP_VERSION_1_1)
{
fprintf(stderr, "DEBUG: Printer responded with HTTP version %d.%d.\n",
http->version / 100, http->version % 100);
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-wrong-http-version");
}
supported = cupsDoRequest(http, request, resource);
ipp_status = cupsLastError();
fprintf(stderr, "DEBUG: Get-Printer-Attributes: %s (%s)\n",
ippErrorString(ipp_status), cupsLastErrorString());
if (ipp_status <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
else
{
fprintf(stderr, "DEBUG: Get-Printer-Attributes returned %s.\n",
ippErrorString(ipp_status));
if (ipp_status == IPP_STATUS_ERROR_BUSY ||
ipp_status == IPP_STATUS_ERROR_SERVICE_UNAVAILABLE)
{
if (contimeout && (time(NULL) - start_time) > contimeout)
{
_cupsLangPrintFilter(stderr, "ERROR",
_("The printer is not responding."));
return (CUPS_BACKEND_FAILED);
}
_cupsLangPrintFilter(stderr, "INFO", _("The printer is in use."));
report_printer_state(supported);
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
}
else if ((ipp_status == IPP_STATUS_ERROR_BAD_REQUEST ||
ipp_status == IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED) && version > 10)
{
/*
* Switch to IPP/1.1 or IPP/1.0...
*/
if (version >= 20)
{
_cupsLangPrintFilter(stderr, "INFO", _("Preparing to print."));
fprintf(stderr,
"DEBUG: The printer does not support IPP/%d.%d, trying "
"IPP/1.1.\n", version / 10, version % 10);
version = 11;
}
else
{
_cupsLangPrintFilter(stderr, "INFO", _("Preparing to print."));
fprintf(stderr,
"DEBUG: The printer does not support IPP/%d.%d, trying "
"IPP/1.0.\n", version / 10, version % 10);
version = 10;
}
httpReconnect2(http, 30000, NULL);
}
else if (ipp_status == IPP_STATUS_ERROR_NOT_FOUND)
{
_cupsLangPrintFilter(stderr, "ERROR",
_("The printer configuration is incorrect or the "
"printer no longer exists."));
ippDelete(supported);
return (CUPS_BACKEND_STOP);
}
else if (ipp_status == IPP_STATUS_ERROR_FORBIDDEN ||
ipp_status == IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED)
{
const char *www_auth = httpGetField(http, HTTP_FIELD_WWW_AUTHENTICATE);
/* WWW-Authenticate field value */
if (!strncmp(www_auth, "Negotiate", 9))
auth_info_required = "negotiate";
else if (www_auth[0])
auth_info_required = "username,password";
fprintf(stderr, "ATTR: auth-info-required=%s\n", auth_info_required);
return (CUPS_BACKEND_AUTH_REQUIRED);
}
else if (ipp_status != IPP_STATUS_ERROR_NOT_AUTHORIZED)
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unable to get printer status."));
sleep(10);
httpReconnect2(http, 30000, NULL);
}
ippDelete(supported);
supported = NULL;
continue;
}
if (!getenv("CLASS"))
{
/*
* Check printer-is-accepting-jobs = false and printer-state-reasons for the
* "spool-area-full" keyword...
*/
int busy = 0;
if ((printer_accepting = ippFindAttribute(supported,
"printer-is-accepting-jobs",
IPP_TAG_BOOLEAN)) != NULL &&
!printer_accepting->values[0].boolean)
busy = 1;
else if (!printer_accepting)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-printer-is-accepting-jobs");
if ((printer_state = ippFindAttribute(supported,
"printer-state-reasons",
IPP_TAG_KEYWORD)) == NULL)
{
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-printer-state-reasons");
}
else if (!busy)
{
for (i = 0; i < printer_state->num_values; i ++)
{
if (!strcmp(printer_state->values[0].string.text,
"spool-area-full") ||
!strncmp(printer_state->values[0].string.text, "spool-area-full-",
16))
{
busy = 1;
break;
}
}
}
if (busy)
{
_cupsLangPrintFilter(stderr, "INFO", _("The printer is in use."));
report_printer_state(supported);
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
ippDelete(supported);
supported = NULL;
ipp_status = IPP_STATUS_ERROR_BUSY;
continue;
}
}
/*
* Check for supported attributes...
*/
#ifdef HAVE_LIBZ
if ((compression_sup = ippFindAttribute(supported, "compression-supported",
IPP_TAG_KEYWORD)) != NULL)
{
/*
* Check whether the requested compression is supported and/or default to
* compression if supported...
*/
if (compression && !ippContainsString(compression_sup, compression))
{
fprintf(stderr, "DEBUG: Printer does not support the requested "
"compression value \"%s\".\n", compression);
compression = NULL;
}
else if (!compression && (!strcmp(final_content_type, "image/pwg-raster") || !strcmp(final_content_type, "image/urf")))
{
if (ippContainsString(compression_sup, "gzip"))
compression = "gzip";
else if (ippContainsString(compression_sup, "deflate"))
compression = "deflate";
if (compression)
fprintf(stderr, "DEBUG: Automatically using \"%s\" compression.\n",
compression);
}
}
#endif /* HAVE_LIBZ */
if ((copies_sup = ippFindAttribute(supported, "copies-supported",
IPP_TAG_RANGE)) != NULL)
{
/*
* Has the "copies-supported" attribute - does it have an upper
* bound > 1?
*/
fprintf(stderr, "DEBUG: copies-supported=%d-%d\n",
copies_sup->values[0].range.lower,
copies_sup->values[0].range.upper);
if (copies_sup->values[0].range.upper <= 1)
copies_sup = NULL; /* No */
}
if ((cups_version = ippFindAttribute(supported, "cups-version", IPP_TAG_TEXT)) != NULL)
{
const char *val = ippGetString(cups_version, 0, NULL);
fprintf(stderr, "DEBUG: cups-version = \"%s\"\n", val);
if (!strcmp(val, "cups-version"))
cups_version = NULL; /* Bogus cups-version value returned by buggy printers! */
}
encryption_sup = ippFindAttribute(supported, "job-password-encryption-supported", IPP_TAG_KEYWORD);
if ((format_sup = ippFindAttribute(supported, "document-format-supported",
IPP_TAG_MIMETYPE)) != NULL)
{
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);
}
if ((media_col_sup = ippFindAttribute(supported, "media-col-supported",
IPP_TAG_KEYWORD)) != NULL)
{
fprintf(stderr, "DEBUG: media-col-supported (%d values)\n",
media_col_sup->num_values);
for (i = 0; i < media_col_sup->num_values; i ++)
fprintf(stderr, "DEBUG: [%d] = \"%s\"\n", i,
media_col_sup->values[i].string.text);
}
print_color_mode_sup = ippFindAttribute(supported, "print-color-mode-supported", IPP_TAG_KEYWORD);
if ((operations_sup = ippFindAttribute(supported, "operations-supported",
IPP_TAG_ENUM)) != NULL)
{
fprintf(stderr, "DEBUG: operations-supported (%d values)\n",
operations_sup->num_values);
for (i = 0; i < operations_sup->num_values; i ++)
fprintf(stderr, "DEBUG: [%d] = %s\n", i,
ippOpString(operations_sup->values[i].integer));
for (i = 0; i < operations_sup->num_values; i ++)
if (operations_sup->values[i].integer == IPP_OP_PRINT_JOB)
break;
if (i >= operations_sup->num_values)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-print-job");
for (i = 0; i < operations_sup->num_values; i ++)
if (operations_sup->values[i].integer == IPP_OP_CANCEL_JOB)
break;
if (i >= operations_sup->num_values)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-cancel-job");
for (i = 0; i < operations_sup->num_values; i ++)
if (operations_sup->values[i].integer == IPP_OP_GET_JOB_ATTRIBUTES)
break;
if (i >= operations_sup->num_values)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-get-job-attributes");
for (i = 0; i < operations_sup->num_values; i ++)
if (operations_sup->values[i].integer == IPP_OP_GET_PRINTER_ATTRIBUTES)
break;
if (i >= operations_sup->num_values)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-get-printer-attributes");
for (i = 0; i < operations_sup->num_values; i ++)
{
if (operations_sup->values[i].integer == IPP_OP_VALIDATE_JOB)
validate_job = 1;
else if (operations_sup->values[i].integer == IPP_OP_CREATE_JOB)
create_job = 1;
else if (operations_sup->values[i].integer == IPP_OP_SEND_DOCUMENT)
send_document = 1;
else if (operations_sup->values[i].integer == IPP_OP_GET_JOB_ATTRIBUTES)
get_job_attrs = 1;
}
if (create_job && !send_document)
{
fputs("DEBUG: Printer supports Create-Job but not Send-Document.\n",
stderr);
create_job = 0;
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-send-document");
}
if (!validate_job)
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-validate-job");
}
else
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-operations-supported");
doc_handling_sup = ippFindAttribute(supported,
"multiple-document-handling-supported",
IPP_TAG_KEYWORD);
report_printer_state(supported);
}
while (!job_canceled && ipp_status > IPP_STATUS_OK_CONFLICTING);
if (job_canceled)
return (CUPS_BACKEND_OK);
/*
* See if the printer is accepting jobs and is not stopped; if either
* condition is true and we are printing to a class, requeue the job...
*/
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_PSTATE_PROCESSING &&
waitprinter) ||
printer_accepting == NULL ||
!printer_accepting->values[0].boolean)
{
/*
* If the CLASS environment variable is set, the job was submitted
* to a class and not to a specific queue. In this case, we want
* to abort immediately so that the job can be requeued on the next
* available printer in the class.
*/
_cupsLangPrintFilter(stderr, "INFO",
_("Unable to contact printer, queuing on next "
"printer in class."));
ippDelete(supported);
httpClose(http);
/*
* Sleep 5 seconds to keep the job from requeuing too rapidly...
*/
sleep(5);
return (CUPS_BACKEND_FAILED);
}
}
/*
* See if the printer supports multiple copies...
*/
copies = atoi(argv[4]);
if (copies_sup || argc < 7)
copies_remaining = 1;
else
copies_remaining = copies;
/*
* Prepare remaining printing options...
*/
options = NULL;
if (send_options)
{
num_options = cupsParseOptions(argv[5], 0, &options);
if (!cups_version && media_col_sup)
{
/*
* Load the PPD file and generate PWG attribute mapping information...
*/
ppd_attr_t *mandatory; /* cupsMandatory value */
ppd = ppdOpenFile(getenv("PPD"));
pc = _ppdCacheCreateWithPPD(ppd);
ppdMarkDefaults(ppd);
cupsMarkOptions(ppd, num_options, options);
if ((mandatory = ppdFindAttr(ppd, "cupsMandatory", NULL)) != NULL)
strlcpy(mandatory_attrs, mandatory->value, sizeof(mandatory_attrs));
}
/*
* Validate job-password/-encryption...
*/
if (cupsGetOption("job-password", num_options, options))
{
const char *keyword; /* job-password-encryption value */
static const char * const hashes[] =
{ /* List of supported hash algorithms, in order of preference */
"sha-512",
"sha-384",
"sha-512_256",
"sha-512-224",
"sha-256",
"sha-224",
"sha",
"none"
};
if ((keyword = cupsGetOption("job-password-encryption", num_options, options)) == NULL || !ippContainsString(encryption_sup, keyword))
{
/*
* Either no job-password-encryption or the value isn't supported by
* the printer...
*/
for (i = 0; i < (int)(sizeof(hashes) / sizeof(hashes[0])); i ++)
if (ippContainsString(encryption_sup, hashes[i]))
break;
if (i < (int)(sizeof(hashes) / sizeof(hashes[0])))
num_options = cupsAddOption("job-password-encryption", hashes[i], num_options, &options);
}
}
}
else
num_options = 0;
document_format = NULL;
if (format_sup != NULL)
{
if (ippContainsString(format_sup, final_content_type))
document_format = final_content_type;
else if (ippContainsString(format_sup, "application/octet-stream"))
document_format = "application/octet-stream";
}
fprintf(stderr, "DEBUG: final_content_type=\"%s\", document_format=\"%s\"\n",
final_content_type, document_format ? document_format : "(null)");
/*
* If the printer does not support HTTP/1.1 (which IPP requires), copy stdin
* to a temporary file so that we can do a HTTP/1.0 submission...
*
* (I hate compatibility hacks!)
*/
if (http->version < HTTP_VERSION_1_1 && num_files == 0)
{
if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0)
{
perror("DEBUG: Unable to create temporary file");
return (CUPS_BACKEND_FAILED);
}
_cupsLangPrintFilter(stderr, "INFO", _("Copying print data."));
if ((compatsize = write(fd, buffer, (size_t)bytes)) < 0)
{
perror("DEBUG: Unable to write temporary file");
return (CUPS_BACKEND_FAILED);
}
if ((bytes = backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, 0,
backendNetworkSideCB)) < 0)
return (CUPS_BACKEND_FAILED);
compatsize += bytes;
close(fd);
compatfile = tmpfilename;
files = &compatfile;
num_files = 1;
}
else if (http->version < HTTP_VERSION_1_1 && num_files == 1)
{
struct stat fileinfo; /* File information */
if (!stat(files[0], &fileinfo))
compatsize = fileinfo.st_size;
}
/*
* If the printer only claims to support IPP/1.0, or if the user specifically
* included version=1.0 in the URI, then do not try to use Create-Job or
* Send-Document. This is another dreaded compatibility hack, but
* unfortunately there are enough broken printers out there that we need
* this for now...
*/
if (version == 10)
create_job = send_document = 0;
/*
* Start monitoring the printer in the background...
*/
monitor.uri = uri;
monitor.hostname = hostname;
monitor.user = argv[2];
monitor.resource = resource;
monitor.port = port;
monitor.version = version;
monitor.job_id = 0;
monitor.create_job = create_job;
monitor.get_job_attrs = get_job_attrs;
monitor.encryption = cupsEncryption();
monitor.job_state = IPP_JSTATE_PENDING;
monitor.printer_state = IPP_PSTATE_IDLE;
monitor.retryable = argc == 6 && document_format && strcmp(document_format, "image/pwg-raster") && strcmp(document_format, "image/urf");
fprintf(stderr, "DEBUG: retryable=%d\n", monitor.retryable);
if (create_job)
{
monitor.job_name = argv[3];
}
else
{
snprintf(print_job_name, sizeof(print_job_name), "%s - %s", argv[1],
argv[3]);
monitor.job_name = print_job_name;
}
_cupsThreadCreate((_cups_thread_func_t)monitor_printer, &monitor);
/*
* Validate access to the printer...
*/
while (!job_canceled && validate_job)
{
request = new_request(IPP_OP_VALIDATE_JOB, version, uri, argv[2],
monitor.job_name, num_options, options, compression,
copies_sup ? copies : 1, document_format, pc, ppd,
media_col_sup, doc_handling_sup, print_color_mode_sup);
response = cupsDoRequest(http, request, resource);
ipp_status = cupsLastError();
fprintf(stderr, "DEBUG: Validate-Job: %s (%s)\n",
ippErrorString(ipp_status), cupsLastErrorString());
debug_attributes(response);
if ((job_auth = ippFindAttribute(response, "job-authorization-uri",
IPP_TAG_URI)) != NULL)
num_options = cupsAddOption("job-authorization-uri",
ippGetString(job_auth, 0, NULL), num_options,
&options);
if (ipp_status == IPP_STATUS_OK_IGNORED_OR_SUBSTITUTED || ipp_status == IPP_STATUS_OK_CONFLICTING)
{
/*
* One or more options are not supported...
*/
ipp_attribute_t *attr; /* Unsupported attribute */
if ((attr = ippFindAttribute(response, "sides", IPP_TAG_ZERO)) != NULL)
{
/*
* The sides value is not supported, revert to one-sided as needed...
*/
const char *sides = cupsGetOption("sides", num_options, options);
if (!sides || !strncmp(sides, "two-sided-", 10))
{
fputs("DEBUG: Unable to do two-sided printing, setting sides to 'one-sided'.\n", stderr);
num_options = cupsAddOption("sides", "one-sided", num_options, &options);
}
}
}
ippDelete(response);
if (job_canceled)
break;
if (ipp_status == IPP_STATUS_ERROR_SERVICE_UNAVAILABLE ||
ipp_status == IPP_STATUS_ERROR_BUSY)
{
_cupsLangPrintFilter(stderr, "INFO", _("The printer is in use."));
sleep(10);
}
else if (ipp_status == IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED ||
ipp_status == IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED)
goto cleanup;
else if (ipp_status == IPP_STATUS_ERROR_FORBIDDEN ||
ipp_status == IPP_STATUS_ERROR_NOT_AUTHORIZED ||
ipp_status == IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED)
{
const char *www_auth = httpGetField(http, HTTP_FIELD_WWW_AUTHENTICATE);
/* WWW-Authenticate field value */
if (!strncmp(www_auth, "Negotiate", 9))
auth_info_required = "negotiate";
else if (www_auth[0])
auth_info_required = "username,password";
goto cleanup;
}
else if (ipp_status == IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED)
{
/*
* This is all too common...
*/
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-validate-job");
break;
}
else if (ipp_status < IPP_STATUS_REDIRECTION_OTHER_SITE ||
ipp_status == IPP_STATUS_ERROR_BAD_REQUEST)
break;
else if (job_auth == NULL && ipp_status > IPP_STATUS_ERROR_BAD_REQUEST)
goto cleanup;
}
/*
* Then issue the print-job request...
*/
job_id = 0;
while (!job_canceled && copies_remaining > 0)
{
/*
* Check for side-channel requests...
*/
backendCheckSideChannel(snmp_fd, http->hostaddr);
/*
* Build the IPP job creation request...
*/
if (job_canceled)
break;
request = new_request((num_files > 1 || create_job) ? IPP_OP_CREATE_JOB :
IPP_OP_PRINT_JOB,
version, uri, argv[2], monitor.job_name, num_options,
options, compression, copies_sup ? copies : 1,
document_format, pc, ppd, media_col_sup,
doc_handling_sup, print_color_mode_sup);
/*
* Do the request...
*/
if (num_files > 1 || create_job)
response = cupsDoRequest(http, request, resource);
else
{
size_t length = 0; /* Length of request */
if (compatsize > 0)
{
fputs("DEBUG: Sending file using HTTP/1.0 Content-Length...\n", stderr);
length = ippLength(request) + (size_t)compatsize;
}
else
fputs("DEBUG: Sending file using HTTP/1.1 chunking...\n", stderr);
http_status = cupsSendRequest(http, request, resource, length);
if (http_status == HTTP_STATUS_CONTINUE && request->state == IPP_STATE_DATA)
{
if (compression && strcmp(compression, "none"))
httpSetField(http, HTTP_FIELD_CONTENT_ENCODING, compression);
if (num_files == 1)
{
if ((fd = open(files[0], O_RDONLY)) < 0)
{
_cupsLangPrintError("ERROR", _("Unable to open print file"));
return (CUPS_BACKEND_FAILED);
}
}
else
{
fd = 0;
http_status = cupsWriteRequestData(http, buffer, (size_t)bytes);
}
while (http_status == HTTP_STATUS_CONTINUE &&
(!job_canceled || compatsize > 0))
{
/*
* Check for side-channel requests and more print data...
*/
FD_ZERO(&input);
FD_SET(fd, &input);
FD_SET(snmp_fd, &input);
FD_SET(CUPS_SC_FD, &input);
while (select(fd > snmp_fd ? fd + 1 : snmp_fd + 1, &input, NULL, NULL,
NULL) <= 0 && !job_canceled);
if (FD_ISSET(snmp_fd, &input))
backendCheckSideChannel(snmp_fd, http->hostaddr);
if (FD_ISSET(fd, &input))
{
if ((bytes = read(fd, buffer, sizeof(buffer))) > 0)
{
fprintf(stderr, "DEBUG: Read %d bytes...\n", (int)bytes);
if ((http_status = cupsWriteRequestData(http, buffer, (size_t)bytes))
!= HTTP_STATUS_CONTINUE)
break;
}
else if (bytes == 0 || (errno != EINTR && errno != EAGAIN))
break;
}
}
if (http_status == HTTP_STATUS_ERROR)
fprintf(stderr, "DEBUG: Error writing document data for "
"Print-Job: %s\n", strerror(httpError(http)));
if (num_files == 1)
close(fd);
}
response = cupsGetResponse(http, resource);
ippDelete(request);
}
ipp_status = cupsLastError();
fprintf(stderr, "DEBUG: %s: %s (%s)\n",
(num_files > 1 || create_job) ? "Create-Job" : "Print-Job",
ippErrorString(ipp_status), cupsLastErrorString());
debug_attributes(response);
if (ipp_status > IPP_STATUS_OK_CONFLICTING)
{
job_id = 0;
if (job_canceled)
break;
if (ipp_status == IPP_STATUS_ERROR_SERVICE_UNAVAILABLE ||
ipp_status == IPP_STATUS_ERROR_NOT_POSSIBLE ||
ipp_status == IPP_STATUS_ERROR_BUSY)
{
_cupsLangPrintFilter(stderr, "INFO", _("The printer is in use."));
sleep(10);
if (num_files == 0)
{
/*
* We can't re-submit when we have no files to print, so exit
* immediately with the right status code...
*/
goto cleanup;
}
}
else if (ipp_status == IPP_STATUS_ERROR_JOB_CANCELED ||
ipp_status == IPP_STATUS_ERROR_NOT_AUTHORIZED ||
ipp_status == IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED)
goto cleanup;
else
{
/*
* Update auth-info-required as needed...
*/
_cupsLangPrintFilter(stderr, "ERROR",
_("Print job was not accepted."));
if (ipp_status == IPP_STATUS_ERROR_FORBIDDEN ||
ipp_status == IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED)
{
const char *www_auth = httpGetField(http, HTTP_FIELD_WWW_AUTHENTICATE);
/* WWW-Authenticate field value */
if (!strncmp(www_auth, "Negotiate", 9))
auth_info_required = "negotiate";
else if (www_auth[0])
auth_info_required = "username,password";
}
else if (ipp_status == IPP_STATUS_ERROR_REQUEST_VALUE)
{
/*
* Print file is too large, abort this job...
*/
goto cleanup;
}
else
sleep(10);
if (num_files == 0)
{
/*
* We can't re-submit when we have no files to print, so exit
* immediately with the right status code...
*/
goto cleanup;
}
}
}
else if ((job_id_attr = ippFindAttribute(response, "job-id",
IPP_TAG_INTEGER)) == NULL)
{
fputs("DEBUG: Print job accepted - job ID unknown.\n", stderr);
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-job-id");
job_id = 0;
}
else
{
password_tries = 0;
monitor.job_id = job_id = job_id_attr->values[0].integer;
fprintf(stderr, "DEBUG: Print job accepted - job ID %d.\n", job_id);
}
ippDelete(response);
if (job_canceled)
break;
if (job_id && (num_files > 1 || create_job))
{
for (i = 0; num_files == 0 || i < num_files; i ++)
{
/*
* Check for side-channel requests...
*/
backendCheckSideChannel(snmp_fd, http->hostaddr);
/*
* Send the next file in the job...
*/
request = ippNewRequest(IPP_OP_SEND_DOCUMENT);
ippSetVersion(request, version / 10, version % 10);
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]);
ippAddBoolean(request, IPP_TAG_OPERATION, "last-document",
(i + 1) >= num_files);
if (num_files > 1)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
"document-format", NULL, "application/octet-stream");
else if (document_format)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE,
"document-format", NULL, document_format);
if (compression)
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"compression", NULL, compression);
fprintf(stderr, "DEBUG: Sending file %d using chunking...\n", i + 1);
fprintf(stderr, "DEBUG: IPP/%d.%d %s #%d\n", version / 10, version % 10, ippOpString(ippGetOperation(request)), ippGetRequestId(request));
debug_attributes(request);
http_status = cupsSendRequest(http, request, resource, 0);
if (http_status == HTTP_STATUS_CONTINUE && request->state == IPP_STATE_DATA)
{
if (compression && strcmp(compression, "none"))
httpSetField(http, HTTP_FIELD_CONTENT_ENCODING, compression);
if (num_files == 0)
{
fd = 0;
http_status = cupsWriteRequestData(http, buffer, (size_t)bytes);
}
else
{
if ((fd = open(files[i], O_RDONLY)) < 0)
{
_cupsLangPrintError("ERROR", _("Unable to open print file"));
return (CUPS_BACKEND_FAILED);
}
}
}
else
fd = -1;
if (fd >= 0)
{
while (!job_canceled && http_status == HTTP_STATUS_CONTINUE &&
(bytes = read(fd, buffer, sizeof(buffer))) > 0)
{
if ((http_status = cupsWriteRequestData(http, buffer, (size_t)bytes))
!= HTTP_STATUS_CONTINUE)
break;
else
{
/*
* Check for side-channel requests...
*/
backendCheckSideChannel(snmp_fd, http->hostaddr);
}
}
if (fd > 0)
close(fd);
}
if (http_status == HTTP_STATUS_ERROR)
fprintf(stderr, "DEBUG: Error writing document data for "
"Send-Document: %s\n", strerror(httpError(http)));
response = cupsGetResponse(http, resource);
ippDelete(request);
fprintf(stderr, "DEBUG: Send-Document: %s (%s)\n", ippErrorString(cupsLastError()), cupsLastErrorString());
debug_attributes(response);
if (cupsLastError() > IPP_STATUS_OK_CONFLICTING && !job_canceled)
{
ipp_attribute_t *reasons = ippFindAttribute(response, "job-state-reasons", IPP_TAG_KEYWORD);
/* job-state-reasons values */
ipp_status = cupsLastError();
if (ippContainsString(reasons, "document-format-error"))
ipp_status = IPP_STATUS_ERROR_DOCUMENT_FORMAT_ERROR;
else if (ippContainsString(reasons, "document-unprintable"))
ipp_status = IPP_STATUS_ERROR_DOCUMENT_UNPRINTABLE;
ippDelete(response);
_cupsLangPrintFilter(stderr, "ERROR", _("Unable to add document to print job."));
break;
}
else
{
ippDelete(response);
password_tries = 0;
if (num_files == 0 || fd < 0)
break;
}
}
}
if (job_canceled)
break;
if (ipp_status <= IPP_STATUS_OK_CONFLICTING && argc > 6)
{
fprintf(stderr, "PAGE: 1 %d\n", copies_sup ? atoi(argv[4]) : 1);
copies_remaining --;
}
else if ((ipp_status == IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED || ipp_status == IPP_STATUS_ERROR_DOCUMENT_FORMAT_ERROR || ipp_status == IPP_STATUS_ERROR_DOCUMENT_UNPRINTABLE) &&
argc == 6 &&
document_format && strcmp(document_format, "image/pwg-raster") && strcmp(document_format, "image/urf"))
{
/*
* Need to reprocess the job as raster...
*/
fputs("JOBSTATE: cups-retry-as-raster\n", stderr);
if (job_id > 0)
cancel_job(http, uri, job_id, resource, argv[2], version);
goto cleanup;
}
else if (ipp_status == IPP_STATUS_ERROR_SERVICE_UNAVAILABLE ||
ipp_status == IPP_STATUS_ERROR_NOT_POSSIBLE ||
ipp_status == IPP_STATUS_ERROR_BUSY)
{
if (argc == 6)
{
/*
* Need to reprocess the entire job; if we have a job ID, cancel the
* job first...
*/
if (job_id > 0)
cancel_job(http, uri, job_id, resource, argv[2], version);
goto cleanup;
}
continue;
}
else if (ipp_status == IPP_STATUS_ERROR_REQUEST_VALUE ||
ipp_status == IPP_STATUS_ERROR_JOB_CANCELED ||
ipp_status == IPP_STATUS_ERROR_NOT_AUTHORIZED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED ||
ipp_status == IPP_STATUS_ERROR_INTERNAL)
{
/*
* Print file is too large, job was canceled, we need new
* authentication data, or we had some sort of error...
*/
goto cleanup;
}
else if (ipp_status == IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED)
{
/*
* Server is configured incorrectly; the policy for Create-Job and
* Send-Document has to be the same (auth or no auth, encryption or
* no encryption). Force the queue to stop since printing will never
* work.
*/
fputs("DEBUG: The server or printer is configured incorrectly.\n",
stderr);
fputs("DEBUG: The policy for Create-Job and Send-Document must have the "
"same authentication and encryption requirements.\n", stderr);
ipp_status = IPP_STATUS_ERROR_INTERNAL;
if (job_id > 0)
cancel_job(http, uri, job_id, resource, argv[2], version);
goto cleanup;
}
else if (ipp_status == IPP_STATUS_ERROR_NOT_FOUND)
{
/*
* Printer does not actually implement support for Create-Job/
* Send-Document, so log the conformance issue and stop the printer.
*/
fputs("DEBUG: This printer claims to support Create-Job and "
"Send-Document, but those operations failed.\n", stderr);
fputs("DEBUG: Add '?version=1.0' to the device URI to use legacy "
"compatibility mode.\n", stderr);
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-send-document");
ipp_status = IPP_STATUS_ERROR_INTERNAL; /* Force queue to stop */
goto cleanup;
}
else
copies_remaining --;
/*
* Wait for the job to complete...
*/
if (!job_id || !waitjob || !get_job_attrs)
continue;
fputs("STATE: +cups-waiting-for-job-completed\n", stderr);
_cupsLangPrintFilter(stderr, "INFO", _("Waiting for job to complete."));
for (delay = _cupsNextDelay(0, &prev_delay); !job_canceled;)
{
/*
* Check for side-channel requests...
*/
backendCheckSideChannel(snmp_fd, http->hostaddr);
/*
* Check printer state...
*/
check_printer_state(http, uri, resource, argv[2], version);
if (cupsLastError() <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
/*
* Build an IPP_OP_GET_JOB_ATTRIBUTES request...
*/
request = ippNewRequest(IPP_OP_GET_JOB_ATTRIBUTES);
ippSetVersion(request, version / 10, version % 10);
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);
fprintf(stderr, "DEBUG: IPP/%d.%d %s #%d\n", version / 10, version % 10, ippOpString(ippGetOperation(request)), ippGetRequestId(request));
debug_attributes(request);
/*
* Do the request...
*/
httpReconnect2(http, 30000, NULL);
response = cupsDoRequest(http, request, resource);
ipp_status = cupsLastError();
if (ipp_status == IPP_STATUS_ERROR_NOT_FOUND || ipp_status == IPP_STATUS_ERROR_NOT_POSSIBLE)
{
/*
* Job has gone away and/or the server has no job history...
*/
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-job-history");
ippDelete(response);
ipp_status = IPP_STATUS_OK;
break;
}
fprintf(stderr, "DEBUG: Get-Job-Attributes: %s (%s)\n",
ippErrorString(ipp_status), cupsLastErrorString());
debug_attributes(response);
if (ipp_status <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
else
{
if (ipp_status != IPP_STATUS_ERROR_SERVICE_UNAVAILABLE &&
ipp_status != IPP_STATUS_ERROR_BUSY)
{
ippDelete(response);
ipp_status = IPP_STATUS_OK;
break;
}
else if (ipp_status == IPP_STATUS_ERROR_INTERNAL)
{
waitjob_tries ++;
if (waitjob_tries > 4)
{
ippDelete(response);
ipp_status = IPP_STATUS_OK;
break;
}
}
}
if (response)
{
if ((job_state = ippFindAttribute(response, "job-state",
IPP_TAG_ENUM)) != NULL)
{
/*
* Reflect the remote job state in the local queue...
*/
if (cups_version &&
job_state->values[0].integer >= IPP_JSTATE_PENDING &&
job_state->values[0].integer <= IPP_JSTATE_COMPLETED)
update_reasons(NULL,
remote_job_states[job_state->values[0].integer -
IPP_JSTATE_PENDING]);
if ((job_sheets = ippFindAttribute(response, "job-impressions-completed", IPP_TAG_INTEGER)) == NULL)
job_sheets = ippFindAttribute(response, "job-media-sheets-completed", IPP_TAG_INTEGER);
if (job_sheets)
fprintf(stderr, "PAGE: total %d\n",
job_sheets->values[0].integer);
/*
* Stop polling if the job is finished or pending-held...
*/
if (job_state->values[0].integer > IPP_JSTATE_STOPPED || job_state->values[0].integer == IPP_JSTATE_HELD)
{
ippDelete(response);
break;
}
}
else if (ipp_status != IPP_STATUS_ERROR_SERVICE_UNAVAILABLE &&
ipp_status != IPP_STATUS_ERROR_NOT_POSSIBLE &&
ipp_status != IPP_STATUS_ERROR_BUSY)
{
/*
* If the printer does not return a job-state attribute, it does not
* conform to the IPP specification - break out immediately and fail
* the job...
*/
update_reasons(NULL, "+cups-ipp-conformance-failure-report,"
"cups-ipp-missing-job-state");
ipp_status = IPP_STATUS_ERROR_INTERNAL;
break;
}
}
ippDelete(response);
/*
* Wait before polling again...
*/
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
}
}
/*
* Cancel the job as needed...
*/
if (job_canceled > 0 && job_id > 0)
{
cancel_job(http, uri, job_id, resource, argv[2], version);
if (cupsLastError() > IPP_STATUS_OK_CONFLICTING)
_cupsLangPrintFilter(stderr, "ERROR", _("Unable to cancel print job."));
}
/*
* Check the printer state and report it if necessary...
*/
check_printer_state(http, uri, resource, argv[2], version);
if (cupsLastError() <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
/*
* Collect the final page count as needed...
*/
if (have_supplies &&
!backendSNMPSupplies(snmp_fd, &(http->addrlist->addr), &page_count,
NULL) &&
page_count > start_count)
fprintf(stderr, "PAGE: total %d\n", page_count - start_count);
#ifdef HAVE_GSSAPI
/*
* See if we used Kerberos at all...
*/
if (http->gssctx)
auth_info_required = "negotiate";
#endif /* HAVE_GSSAPI */
/*
* Free memory...
*/
cleanup:
cupsFreeOptions(num_options, options);
_ppdCacheDestroy(pc);
ppdClose(ppd);
httpClose(http);
ippDelete(supported);
/*
* Remove the temporary file(s) if necessary...
*/
if (tmpfilename[0])
unlink(tmpfilename);
/*
* Return the queue status...
*/
if (ipp_status == IPP_STATUS_ERROR_NOT_AUTHORIZED || ipp_status == IPP_STATUS_ERROR_FORBIDDEN ||
ipp_status == IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED ||
ipp_status <= IPP_STATUS_OK_CONFLICTING)
fprintf(stderr, "ATTR: auth-info-required=%s\n", auth_info_required);
if (ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED)
fputs("JOBSTATE: account-info-needed\n", stderr);
else if (ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED)
fputs("JOBSTATE: account-closed\n", stderr);
else if (ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED)
fputs("JOBSTATE: account-limit-reached\n", stderr);
else if (ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED)
fputs("JOBSTATE: account-authorization-failed\n", stderr);
if (job_canceled)
return (CUPS_BACKEND_OK);
else if (ipp_status == IPP_STATUS_ERROR_NOT_AUTHORIZED || ipp_status == IPP_STATUS_ERROR_FORBIDDEN || ipp_status == IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED)
return (CUPS_BACKEND_AUTH_REQUIRED);
else if (ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_LIMIT_REACHED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_INFO_NEEDED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_CLOSED ||
ipp_status == IPP_STATUS_ERROR_CUPS_ACCOUNT_AUTHORIZATION_FAILED)
return (CUPS_BACKEND_HOLD);
else if (ipp_status == IPP_STATUS_ERROR_INTERNAL)
return (CUPS_BACKEND_STOP);
else if (ipp_status == IPP_STATUS_ERROR_CONFLICTING || ipp_status == IPP_STATUS_ERROR_REQUEST_ENTITY || ipp_status == IPP_STATUS_ERROR_REQUEST_VALUE)
return (CUPS_BACKEND_FAILED);
else if (ipp_status == IPP_STATUS_ERROR_REQUEST_VALUE ||
ipp_status == IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES ||
ipp_status == IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED || job_canceled < 0)
{
if (ipp_status == IPP_STATUS_ERROR_REQUEST_VALUE)
_cupsLangPrintFilter(stderr, "ERROR", _("Print job too large."));
else if (ipp_status == IPP_STATUS_ERROR_DOCUMENT_FORMAT_NOT_SUPPORTED)
_cupsLangPrintFilter(stderr, "ERROR",
_("Printer cannot print supplied content."));
else if (ipp_status == IPP_STATUS_ERROR_ATTRIBUTES_OR_VALUES)
_cupsLangPrintFilter(stderr, "ERROR",
_("Printer cannot print with supplied options."));
else
_cupsLangPrintFilter(stderr, "ERROR", _("Print job canceled at printer."));
return (CUPS_BACKEND_CANCEL);
}
else if (ipp_status > IPP_STATUS_OK_CONFLICTING && ipp_status != IPP_STATUS_ERROR_JOB_CANCELED)
return (CUPS_BACKEND_RETRY_CURRENT);
else
return (CUPS_BACKEND_OK);
}
/*
* 'cancel_job()' - Cancel a print job.
*/
static void
cancel_job(http_t *http, /* I - HTTP connection */
const char *uri, /* I - printer-uri */
int id, /* I - job-id */
const char *resource, /* I - Resource path */
const char *user, /* I - requesting-user-name */
int version) /* I - IPP version */
{
ipp_t *request; /* Cancel-Job request */
_cupsLangPrintFilter(stderr, "INFO", _("Canceling print job."));
request = ippNewRequest(IPP_OP_CANCEL_JOB);
ippSetVersion(request, version / 10, version % 10);
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);
/*
* Do the request...
*/
ippDelete(cupsDoRequest(http, request, resource));
}
/*
* 'check_printer_state()' - Check the printer state.
*/
static ipp_pstate_t /* O - Current printer-state */
check_printer_state(
http_t *http, /* I - HTTP connection */
const char *uri, /* I - Printer URI */
const char *resource, /* I - Resource path */
const char *user, /* I - Username, if any */
int version) /* I - IPP version */
{
ipp_t *request, /* IPP request */
*response; /* IPP response */
ipp_attribute_t *attr; /* Attribute in response */
ipp_pstate_t printer_state = IPP_PSTATE_STOPPED;
/* Current printer-state */
/*
* Send a Get-Printer-Attributes request and log the results...
*/
request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES);
ippSetVersion(request, version / 10, version % 10);
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(pattrs) / sizeof(pattrs[0])), NULL, pattrs);
fprintf(stderr, "DEBUG: IPP/%d.%d %s #%d\n", version / 10, version % 10, ippOpString(ippGetOperation(request)), ippGetRequestId(request));
debug_attributes(request);
if ((response = cupsDoRequest(http, request, resource)) != NULL)
{
report_printer_state(response);
if ((attr = ippFindAttribute(response, "printer-state",
IPP_TAG_ENUM)) != NULL)
printer_state = (ipp_pstate_t)attr->values[0].integer;
}
fprintf(stderr, "DEBUG: Get-Printer-Attributes: %s (%s)\n",
ippErrorString(cupsLastError()), cupsLastErrorString());
debug_attributes(response);
ippDelete(response);
/*
* Return the printer-state value...
*/
return (printer_state);
}
/*
* 'debug_attributes()' - Print out the request or response attributes as DEBUG
* messages...
*/
static void
debug_attributes(ipp_t *ipp) /* I - Request or response message */
{
ipp_tag_t group; /* Current group */
ipp_attribute_t *attr; /* Current attribute */
char buffer[1024]; /* Value buffer */
for (group = IPP_TAG_ZERO, attr = ippFirstAttribute(ipp);
attr;
attr = ippNextAttribute(ipp))
{
const char *name = ippGetName(attr);
if (!name)
{
group = IPP_TAG_ZERO;
continue;
}
if (group != ippGetGroupTag(attr))
{
group = ippGetGroupTag(attr);
fprintf(stderr, "DEBUG: ---- %s ----\n", ippTagString(group));
}
if (!strcmp(name, "job-password"))
strlcpy(buffer, "---", sizeof(buffer));
else
ippAttributeString(attr, buffer, sizeof(buffer));
fprintf(stderr, "DEBUG: %s %s%s %s\n", name,
ippGetCount(attr) > 1 ? "1setOf " : "",
ippTagString(ippGetValueTag(attr)), buffer);
}
fprintf(stderr, "DEBUG: ---- %s ----\n", ippTagString(IPP_TAG_END));
}
/*
* 'monitor_printer()' - Monitor the printer state.
*/
static void * /* O - Thread exit code */
monitor_printer(
_cups_monitor_t *monitor) /* I - Monitoring data */
{
http_t *http; /* Connection to printer */
ipp_t *request, /* IPP request */
*response; /* IPP response */
ipp_attribute_t *attr; /* Attribute in response */
int delay, /* Current delay */
prev_delay; /* Previous delay */
ipp_op_t job_op; /* Operation to use */
int job_id; /* Job ID */
const char *job_name; /* Job name */
ipp_jstate_t job_state; /* Job state */
const char *job_user; /* Job originating user name */
int password_tries = 0; /* Password tries */
/*
* Make a copy of the printer connection...
*/
http = httpConnect2(monitor->hostname, monitor->port, NULL, AF_UNSPEC,
monitor->encryption, 1, 0, NULL);
httpSetTimeout(http, 30.0, timeout_cb, NULL);
if (username[0])
cupsSetUser(username);
cupsSetPasswordCB2((cups_password_cb2_t)password_cb, &password_tries);
/*
* Loop until the job is canceled, aborted, or completed.
*/
delay = _cupsNextDelay(0, &prev_delay);
monitor->job_reasons = 0;
while (monitor->job_state < IPP_JSTATE_CANCELED && !job_canceled)
{
/*
* Reconnect to the printer as needed...
*/
if (httpGetFd(http) < 0)
httpReconnect2(http, 30000, NULL);
if (httpGetFd(http) >= 0)
{
/*
* Connected, so check on the printer state...
*/
monitor->printer_state = check_printer_state(http, monitor->uri,
monitor->resource,
monitor->user,
monitor->version);
if (cupsLastError() <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
if (monitor->job_id == 0 && monitor->create_job)
{
/*
* No job-id yet, so continue...
*/
goto monitor_sleep;
}
/*
* Check the status of the job itself...
*/
job_op = (monitor->job_id > 0 && monitor->get_job_attrs) ?
IPP_OP_GET_JOB_ATTRIBUTES : IPP_OP_GET_JOBS;
request = ippNewRequest(job_op);
ippSetVersion(request, monitor->version / 10, monitor->version % 10);
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri",
NULL, monitor->uri);
if (job_op == IPP_OP_GET_JOB_ATTRIBUTES)
ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "job-id",
monitor->job_id);
if (monitor->user && monitor->user[0])
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
"requesting-user-name", NULL, monitor->user);
ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD,
"requested-attributes",
(int)(sizeof(jattrs) / sizeof(jattrs[0])), NULL, jattrs);
/*
* Do the request...
*/
response = cupsDoRequest(http, request, monitor->resource);
fprintf(stderr, "DEBUG: (monitor) %s: %s (%s)\n", ippOpString(job_op),
ippErrorString(cupsLastError()), cupsLastErrorString());
if (cupsLastError() <= IPP_STATUS_OK_CONFLICTING)
password_tries = 0;
if (job_op == IPP_OP_GET_JOB_ATTRIBUTES)
{
if ((attr = ippFindAttribute(response, "job-state",
IPP_TAG_ENUM)) != NULL)
monitor->job_state = (ipp_jstate_t)attr->values[0].integer;
else
monitor->job_state = IPP_JSTATE_COMPLETED;
}
else if (response)
{
for (attr = response->attrs; attr; attr = attr->next)
{
job_id = 0;
job_name = NULL;
job_state = IPP_JSTATE_PENDING;
job_user = NULL;
while (attr && attr->group_tag != IPP_TAG_JOB)
attr = attr->next;
if (!attr)
break;
while (attr && attr->group_tag == IPP_TAG_JOB)
{
if (!strcmp(attr->name, "job-id") &&
attr->value_tag == IPP_TAG_INTEGER)
job_id = attr->values[0].integer;
else if (!strcmp(attr->name, "job-name") &&
(attr->value_tag == IPP_TAG_NAME ||
attr->value_tag == IPP_TAG_NAMELANG))
job_name = attr->values[0].string.text;
else if (!strcmp(attr->name, "job-state") &&
attr->value_tag == IPP_TAG_ENUM)
job_state = (ipp_jstate_t)attr->values[0].integer;
else if (!strcmp(attr->name, "job-originating-user-name") &&
(attr->value_tag == IPP_TAG_NAME ||
attr->value_tag == IPP_TAG_NAMELANG))
job_user = attr->values[0].string.text;
attr = attr->next;
}
if (job_id > 0 && job_name && !strcmp(job_name, monitor->job_name) &&
job_user && monitor->user && !strcmp(job_user, monitor->user))
{
monitor->job_id = job_id;
monitor->job_state = job_state;
break;
}
if (!attr)
break;
}
}
fprintf(stderr, "DEBUG: (monitor) job-state = %s\n", ippEnumString("job-state", (int)monitor->job_state));
if (!job_canceled &&
(monitor->job_state == IPP_JSTATE_CANCELED ||
monitor->job_state == IPP_JSTATE_ABORTED))
{
job_canceled = -1;
fprintf(stderr, "DEBUG: (monitor) job_canceled = -1\n");
}
if ((attr = ippFindAttribute(response, "job-state-reasons",
IPP_TAG_KEYWORD)) != NULL)
{
int i, new_reasons = 0; /* Looping var, new reasons */
for (i = 0; i < attr->num_values; i ++)
{
if (!strcmp(attr->values[i].string.text, "account-authorization-failed"))
new_reasons |= _CUPS_JSR_ACCOUNT_AUTHORIZATION_FAILED;
else if (!strcmp(attr->values[i].string.text, "account-closed"))
new_reasons |= _CUPS_JSR_ACCOUNT_CLOSED;
else if (!strcmp(attr->values[i].string.text, "account-info-needed"))
new_reasons |= _CUPS_JSR_ACCOUNT_INFO_NEEDED;
else if (!strcmp(attr->values[i].string.text, "account-limit-reached"))
new_reasons |= _CUPS_JSR_ACCOUNT_LIMIT_REACHED;
else if (!strcmp(attr->values[i].string.text, "job-password-wait"))
new_reasons |= _CUPS_JSR_JOB_PASSWORD_WAIT;
else if (!strcmp(attr->values[i].string.text, "job-release-wait"))
new_reasons |= _CUPS_JSR_JOB_RELEASE_WAIT;
else if (!strcmp(attr->values[i].string.text, "document-format-error"))
new_reasons |= _CUPS_JSR_DOCUMENT_FORMAT_ERROR;
else if (!strcmp(attr->values[i].string.text, "document-unprintable"))
new_reasons |= _CUPS_JSR_DOCUMENT_UNPRINTABLE;
if (!job_canceled && (!strncmp(attr->values[i].string.text, "job-canceled-", 13) || !strcmp(attr->values[i].string.text, "aborted-by-system")))
job_canceled = 1;
}
if (new_reasons != monitor->job_reasons)
{
if (new_reasons & _CUPS_JSR_ACCOUNT_AUTHORIZATION_FAILED)
fputs("JOBSTATE: account-authorization-failed\n", stderr);
else if (new_reasons & _CUPS_JSR_ACCOUNT_CLOSED)
fputs("JOBSTATE: account-closed\n", stderr);
else if (new_reasons & _CUPS_JSR_ACCOUNT_INFO_NEEDED)
fputs("JOBSTATE: account-info-needed\n", stderr);
else if (new_reasons & _CUPS_JSR_ACCOUNT_LIMIT_REACHED)
fputs("JOBSTATE: account-limit-reached\n", stderr);
else if (new_reasons & _CUPS_JSR_JOB_PASSWORD_WAIT)
fputs("JOBSTATE: job-password-wait\n", stderr);
else if (new_reasons & _CUPS_JSR_JOB_RELEASE_WAIT)
fputs("JOBSTATE: job-release-wait\n", stderr);
else if (new_reasons & (_CUPS_JSR_DOCUMENT_FORMAT_ERROR | _CUPS_JSR_DOCUMENT_UNPRINTABLE))
{
if (monitor->retryable)
{
/*
* Can't print this, so retry as raster...
*/
job_canceled = 1;
fputs("JOBSTATE: cups-retry-as-raster\n", stderr);
}
else if (new_reasons & _CUPS_JSR_DOCUMENT_FORMAT_ERROR)
{
fputs("JOBSTATE: document-format-error\n", stderr);
}
else
{
fputs("JOBSTATE: document-unprintable\n", stderr);
}
}
else
fputs("JOBSTATE: job-printing\n", stderr);
monitor->job_reasons = new_reasons;
}
}
ippDelete(response);
fprintf(stderr, "DEBUG: (monitor) job-state = %s\n", ippEnumString("job-state", (int)monitor->job_state));
if (!job_canceled &&
(monitor->job_state == IPP_JSTATE_CANCELED ||
monitor->job_state == IPP_JSTATE_ABORTED))
job_canceled = -1;
}
/*
* Sleep for N seconds...
*/
monitor_sleep:
sleep((unsigned)delay);
delay = _cupsNextDelay(delay, &prev_delay);
}
/*
* Cancel the job if necessary...
*/
if (job_canceled > 0 && monitor->job_id > 0)
{
if (httpGetFd(http) < 0)
httpReconnect2(http, 30000, NULL);
if (httpGetFd(http) >= 0)
{
cancel_job(http, monitor->uri, monitor->job_id, monitor->resource,
monitor->user, monitor->version);
if (cupsLastError() > IPP_STATUS_OK_CONFLICTING)
{
fprintf(stderr, "DEBUG: (monitor) cancel_job() = %s\n", cupsLastErrorString());
_cupsLangPrintFilter(stderr, "ERROR", _("Unable to cancel print job."));
}
}
}
/*
* Cleanup and return...
*/
httpClose(http);
return (NULL);
}
/*
* 'new_request()' - Create a new print creation or validation request.
*/
static ipp_t * /* O - Request data */
new_request(
ipp_op_t op, /* I - IPP operation code */
int version, /* I - IPP version number */
const char *uri, /* I - printer-uri value */
const char *user, /* I - requesting-user-name value */
const char *title, /* I - job-name value */
int num_options, /* I - Number of options to send */
cups_option_t *options, /* I - Options to send */
const char *compression, /* I - compression value or NULL */
int copies, /* I - copies value or 0 */
const char *format, /* I - document-format value or NULL */
_ppd_cache_t *pc, /* I - PPD cache and mapping data */
ppd_file_t *ppd, /* I - PPD file data */
ipp_attribute_t *media_col_sup, /* I - media-col-supported values */
ipp_attribute_t *doc_handling_sup, /* I - multiple-document-handling-supported values */
ipp_attribute_t *print_color_mode_sup)
/* I - Printer supports print-color-mode */
{
ipp_t *request; /* Request data */
const char *keyword; /* PWG keyword */
/*
* Create the IPP request...
*/
request = ippNewRequest(op);
ippSetVersion(request, version / 10, version % 10);
fprintf(stderr, "DEBUG: %s IPP/%d.%d\n",
ippOpString(request->request.op.operation_id),
request->request.op.version[0],
request->request.op.version[1]);
/*
* Add standard attributes...
*/
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
fprintf(stderr, "DEBUG: printer-uri=\"%s\"\n", uri);
if (user && *user)
{
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name", NULL, user);
fprintf(stderr, "DEBUG: requesting-user-name=\"%s\"\n", user);
}
if (title && *title)
{
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL, title);
fprintf(stderr, "DEBUG: job-name=\"%s\"\n", title);
}
if (format && op != IPP_OP_CREATE_JOB)
{
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_MIMETYPE, "document-format", NULL, format);
fprintf(stderr, "DEBUG: document-format=\"%s\"\n", format);
}
#ifdef HAVE_LIBZ
if (compression && op != IPP_OP_CREATE_JOB && op != IPP_OP_VALIDATE_JOB)
{
ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, "compression", NULL, compression);
fprintf(stderr, "DEBUG: compression=\"%s\"\n", compression);
}
#endif /* HAVE_LIBZ */
/*
* Handle options on the command-line...
*/
if (num_options > 0)
{
if (pc)
{
/*
* Send standard IPP attributes...
*/
fputs("DEBUG: Adding standard IPP operation/job attributes.\n", stderr);
copies = _cupsConvertOptions(request, ppd, pc, media_col_sup, doc_handling_sup, print_color_mode_sup, user, format, copies, num_options, options);
/*
* Map FaxOut options...
*/
if ((keyword = cupsGetOption("phone", num_options, options)) != NULL)
{
ipp_t *destination; /* destination collection */
char phone[1024], /* Phone number string */
*ptr, /* Pointer into string */
tel_uri[1024]; /* tel: URI */
static const char * const allowed = "0123456789#*-+.()pw";
/* Allowed characters */
destination = ippNew();
/*
* Unescape and filter out spaces and other characters that are not
* allowed in a tel: URI.
*/
_httpDecodeURI(phone, keyword, sizeof(phone));
for (ptr = phone; *ptr;)
{
if (*ptr == ',')
*ptr = 'p';
else if (!strchr(allowed, *ptr))
_cups_strcpy(ptr, ptr + 1);
else
ptr ++;
}
httpAssembleURI(HTTP_URI_CODING_ALL, tel_uri, sizeof(tel_uri), "tel", NULL, NULL, 0, phone);
ippAddString(destination, IPP_TAG_JOB, IPP_TAG_URI, "destination-uri", NULL, tel_uri);
if ((keyword = cupsGetOption("faxPrefix", num_options,
options)) != NULL && *keyword)
{
char predial[1024]; /* Pre-dial string */
_httpDecodeURI(predial, keyword, sizeof(predial));
ippAddString(destination, IPP_TAG_JOB, IPP_TAG_TEXT, "pre-dial-string", NULL, predial);
}
ippAddCollection(request, IPP_TAG_JOB, "destination-uris", destination);
ippDelete(destination);
}
}
else
{
/*
* When talking to another CUPS server, send all options...
*/
fputs("DEBUG: Adding all operation/job attributes.\n", stderr);
cupsEncodeOptions2(request, num_options, options, IPP_TAG_OPERATION);
cupsEncodeOptions2(request, num_options, options, IPP_TAG_JOB);
}
if (copies > 1 && (!pc || copies <= pc->max_copies))
ippAddInteger(request, IPP_TAG_JOB, IPP_TAG_INTEGER, "copies", copies);
}
fprintf(stderr, "DEBUG: IPP/%d.%d %s #%d\n", version / 10, version % 10, ippOpString(ippGetOperation(request)), ippGetRequestId(request));
debug_attributes(request);
return (request);
}
/*
* 'password_cb()' - Disable the password prompt for cupsDoFileRequest().
*/
static const char * /* O - Password */
password_cb(const char *prompt, /* I - Prompt (not used) */
http_t *http, /* I - Connection */
const char *method, /* I - Request method (not used) */
const char *resource, /* I - Resource path (not used) */
int *password_tries) /* I - Password tries */
{
char def_username[HTTP_MAX_VALUE]; /* Default username */
fprintf(stderr, "DEBUG: password_cb(prompt=\"%s\", http=%p, method=\"%s\", "
"resource=\"%s\", password_tries=%p(%d)), password=%p\n",
prompt, http, method, resource, password_tries, *password_tries,
password);
(void)prompt;
(void)method;
(void)resource;
if (!uri_credentials)
{
/*
* Remember that we need to authenticate...
*/
auth_info_required = "username,password";
if (httpGetSubField(http, HTTP_FIELD_WWW_AUTHENTICATE, "username",
def_username))
{
char quoted[HTTP_MAX_VALUE * 2 + 4];
/* Quoted string */
fprintf(stderr, "ATTR: auth-info-default=%s,\n",
quote_string(def_username, quoted, sizeof(quoted)));
}
}
if (password && *password && *password_tries < 3)
{
(*password_tries) ++;
cupsSetUser(username);
return (password);
}
else
{
/*
* Give up after 3 tries or if we don't have a password to begin with...
*/
return (NULL);
}
}
/*
* 'quote_string()' - Quote a string value.
*/
static const char * /* O - Quoted string */
quote_string(const char *s, /* I - String */
char *q, /* I - Quoted string buffer */
size_t qsize) /* I - Size of quoted string buffer */
{
char *qptr, /* Pointer into string buffer */
*qend; /* End of string buffer */
qptr = q;
qend = q + qsize - 5;
if (qend < q)
{
*q = '\0';
return (q);
}
*qptr++ = '\'';
*qptr++ = '\"';
while (*s && qptr < qend)
{
if (*s == '\\' || *s == '\"' || *s == '\'')
{
if (qptr < (qend - 4))
{
*qptr++ = '\\';
*qptr++ = '\\';
*qptr++ = '\\';
}
else
break;
}
*qptr++ = *s++;
}
*qptr++ = '\"';
*qptr++ = '\'';
*qptr = '\0';
return (q);
}
/*
* 'report_attr()' - Report an IPP attribute value.
*/
static void
report_attr(ipp_attribute_t *attr) /* I - Attribute */
{
int i; /* Looping var */
char value[1024], /* Value string */
*valptr; /* Pointer into value string */
const char *cached; /* Cached attribute */
/*
* Convert the attribute values into quoted strings...
*/
for (i = 0, valptr = value;
i < attr->num_values && valptr < (value + sizeof(value) - 10);
i ++)
{
if (i > 0)
*valptr++ = ',';
switch (attr->value_tag)
{
case IPP_TAG_INTEGER :
case IPP_TAG_ENUM :
snprintf(valptr, sizeof(value) - (size_t)(valptr - value), "%d", attr->values[i].integer);
valptr += strlen(valptr);
break;
case IPP_TAG_TEXT :
case IPP_TAG_NAME :
case IPP_TAG_KEYWORD :
quote_string(attr->values[i].string.text, valptr, (size_t)(value + sizeof(value) - valptr));
valptr += strlen(valptr);
break;
default :
/*
* Unsupported value type...
*/
return;
}
}
*valptr = '\0';
_cupsMutexLock(&report_mutex);
if ((cached = cupsGetOption(attr->name, num_attr_cache,
attr_cache)) == NULL || strcmp(cached, value))
{
/*
* Tell the scheduler about the new values...
*/
num_attr_cache = cupsAddOption(attr->name, value, num_attr_cache,
&attr_cache);
fprintf(stderr, "ATTR: %s=%s\n", attr->name, value);
}
_cupsMutexUnlock(&report_mutex);
}
/*
* 'report_printer_state()' - Report the printer state.
*/
static void
report_printer_state(ipp_t *ipp) /* I - IPP response */
{
ipp_attribute_t *pa, /* printer-alert */
*pam, /* printer-alert-message */
*pmja, /* printer-mandatory-job-attributes */
*psm, /* printer-state-message */
*reasons, /* printer-state-reasons */
*marker; /* marker-* attributes */
char value[1024], /* State/message string */
*valptr; /* Pointer into string */
static int ipp_supplies = -1;
/* Report supply levels? */
/*
* Report alerts and messages...
*/
if ((pa = ippFindAttribute(ipp, "printer-alert", IPP_TAG_TEXT)) != NULL)
report_attr(pa);
if ((pam = ippFindAttribute(ipp, "printer-alert-message",
IPP_TAG_TEXT)) != NULL)
report_attr(pam);
if ((pmja = ippFindAttribute(ipp, "printer-mandatory-job-attributes", IPP_TAG_KEYWORD)) != NULL)
{
int i, /* Looping var */
count = ippGetCount(pmja); /* Number of values */
for (i = 0, valptr = value; i < count; i ++, valptr += strlen(valptr))
{
if (i)
snprintf(valptr, sizeof(value) - (size_t)(valptr - value), " %s", ippGetString(pmja, i, NULL));
else
strlcpy(value, ippGetString(pmja, i, NULL), sizeof(value));
}
if (strcmp(value, mandatory_attrs))
{
strlcpy(mandatory_attrs, value, sizeof(mandatory_attrs));
fprintf(stderr, "PPD: cupsMandatory=\"%s\"\n", value);
}
}
if ((psm = ippFindAttribute(ipp, "printer-state-message",
IPP_TAG_TEXT)) != NULL)
{
char *ptr; /* Pointer into message */
strlcpy(value, "INFO: ", sizeof(value));
for (ptr = psm->values[0].string.text, valptr = value + 6;
*ptr && valptr < (value + sizeof(value) - 6);
ptr ++)
{
if (*ptr < ' ' && *ptr > 0 && *ptr != '\t')
{
/*
* Substitute "<XX>" for the control character; sprintf is safe because
* we always leave 6 chars free at the end...
*/
sprintf(valptr, "<%02X>", *ptr);
valptr += 4;
}
else
*valptr++ = *ptr;
}
*valptr++ = '\n';
*valptr = '\0';
fputs(value, stderr);
}
/*
* Now report printer-state-reasons, filtering out some of the reasons we never
* want to set...
*/
if ((reasons = ippFindAttribute(ipp, "printer-state-reasons",
IPP_TAG_KEYWORD)) == NULL)
return;
update_reasons(reasons, NULL);
/*
* Relay the current marker-* attribute values...
*/
if (ipp_supplies < 0)
{
ppd_file_t *ppd; /* PPD file */
ppd_attr_t *ppdattr; /* Attribute in PPD file */
if ((ppd = ppdOpenFile(getenv("PPD"))) != NULL &&
(ppdattr = ppdFindAttr(ppd, "cupsIPPSupplies", NULL)) != NULL &&
ppdattr->value && _cups_strcasecmp(ppdattr->value, "true"))
ipp_supplies = 0;
else
ipp_supplies = 1;
ppdClose(ppd);
}
if (ipp_supplies > 0)
{
if ((marker = ippFindAttribute(ipp, "marker-colors", IPP_TAG_NAME)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-high-levels",
IPP_TAG_INTEGER)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-levels",
IPP_TAG_INTEGER)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-low-levels",
IPP_TAG_INTEGER)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-message",
IPP_TAG_TEXT)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-names", IPP_TAG_NAME)) != NULL)
report_attr(marker);
if ((marker = ippFindAttribute(ipp, "marker-types",
IPP_TAG_KEYWORD)) != NULL)
report_attr(marker);
}
}
#if defined(HAVE_GSSAPI) && defined(HAVE_XPC)
/*
* 'run_as_user()' - Run the IPP backend as the printing user.
*
* This function uses an XPC-based user agent to run the backend as the printing
* user. We need to do this in order to have access to the user's Kerberos
* credentials.
*/
static int /* O - Exit status */
run_as_user(char *argv[], /* I - Command-line arguments */
uid_t uid, /* I - User ID */
const char *device_uri, /* I - Device URI */
int fd) /* I - File to print */
{
const char *auth_negotiate;/* AUTH_NEGOTIATE env var */
xpc_connection_t conn; /* Connection to XPC service */
xpc_object_t request; /* Request message dictionary */
__block xpc_object_t response; /* Response message dictionary */
dispatch_semaphore_t sem; /* Semaphore for waiting for response */
int status = CUPS_BACKEND_FAILED;
/* Status of request */
fprintf(stderr, "DEBUG: Running IPP backend as UID %d.\n", (int)uid);
/*
* Connect to the user agent for the specified UID...
*/
conn = xpc_connection_create_mach_service(kPMPrintUIToolAgent,
dispatch_get_global_queue(0, 0), 0);
if (!conn)
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unable to start backend process."));
fputs("DEBUG: Unable to create connection to agent.\n", stderr);
goto cleanup;
}
xpc_connection_set_event_handler(conn,
^(xpc_object_t event)
{
xpc_type_t messageType = xpc_get_type(event);
if (messageType == XPC_TYPE_ERROR)
{
if (event == XPC_ERROR_CONNECTION_INTERRUPTED)
fprintf(stderr, "DEBUG: Interrupted connection to service %s.\n",
xpc_connection_get_name(conn));
else if (event == XPC_ERROR_CONNECTION_INVALID)
fprintf(stderr, "DEBUG: Connection invalid for service %s.\n",
xpc_connection_get_name(conn));
else
fprintf(stderr, "DEBUG: Unxpected error for service %s: %s\n",
xpc_connection_get_name(conn),
xpc_dictionary_get_string(event, XPC_ERROR_KEY_DESCRIPTION));
}
});
xpc_connection_set_target_uid(conn, uid);
xpc_connection_resume(conn);
/*
* Try starting the backend...
*/
request = xpc_dictionary_create(NULL, NULL, 0);
xpc_dictionary_set_int64(request, "command", kPMStartJob);
xpc_dictionary_set_string(request, "device-uri", device_uri);
xpc_dictionary_set_string(request, "job-id", argv[1]);
xpc_dictionary_set_string(request, "user", argv[2]);
xpc_dictionary_set_string(request, "title", argv[3]);
xpc_dictionary_set_string(request, "copies", argv[4]);
xpc_dictionary_set_string(request, "options", argv[5]);
xpc_dictionary_set_string(request, "auth-info-required",
getenv("AUTH_INFO_REQUIRED"));
if ((auth_negotiate = getenv("AUTH_NEGOTIATE")) != NULL)
xpc_dictionary_set_string(request, "auth-negotiate", auth_negotiate);
xpc_dictionary_set_fd(request, "stdin", fd);
xpc_dictionary_set_fd(request, "stderr", 2);
xpc_dictionary_set_fd(request, "side-channel", CUPS_SC_FD);
sem = dispatch_semaphore_create(0);
response = NULL;
xpc_connection_send_message_with_reply(conn, request,
dispatch_get_global_queue(0,0),
^(xpc_object_t reply)
{
/* Save the response and wake up */
if (xpc_get_type(reply)
== XPC_TYPE_DICTIONARY)
response = xpc_retain(reply);
dispatch_semaphore_signal(sem);
});
dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
xpc_release(request);
dispatch_release(sem);
if (response)
{
child_pid = (pid_t)xpc_dictionary_get_int64(response, "child-pid");
xpc_release(response);
if (child_pid)
fprintf(stderr, "DEBUG: Child PID=%d.\n", (int)child_pid);
else
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unable to start backend process."));
fputs("DEBUG: No child PID.\n", stderr);
goto cleanup;
}
}
else
{
_cupsLangPrintFilter(stderr, "ERROR",
_("Unable to start backend process."));
fputs("DEBUG: No reply from agent.\n", stderr);
goto cleanup;
}
/*
* Then wait for the backend to finish...
*/
request = xpc_dictionary_create(NULL, NULL, 0);
xpc_dictionary_set_int64(request, "command", kPMWaitForJob);
xpc_dictionary_set_fd(request, "stderr", 2);
sem = dispatch_semaphore_create(0);
response = NULL;
xpc_connection_send_message_with_reply(conn, request,
dispatch_get_global_queue(0,0),
^(xpc_object_t reply)
{
/* Save the response and wake up */
if (xpc_get_type(reply)
== XPC_TYPE_DICTIONARY)
response = xpc_retain(reply);
dispatch_semaphore_signal(sem);
});
dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
xpc_release(request);
dispatch_release(sem);
if (response)
{
status = (int)xpc_dictionary_get_int64(response, "status");
if (status == SIGTERM || status == SIGKILL || status == SIGPIPE)
{
fprintf(stderr, "DEBUG: Child terminated on signal %d.\n", status);
status = CUPS_BACKEND_FAILED;
}
else if (WIFSIGNALED(status))
{
fprintf(stderr, "DEBUG: Child crashed on signal %d.\n", status);
status = CUPS_BACKEND_STOP;
}
else if (WIFEXITED(status))
{
status = WEXITSTATUS(status);
fprintf(stderr, "DEBUG: Child exited with status %d.\n", status);
}
xpc_release(response);
}
else
_cupsLangPrintFilter(stderr, "ERROR",
_("Unable to get backend exit status."));
cleanup:
if (conn)
{
xpc_connection_cancel(conn);
xpc_release(conn);
}
return (status);
}
#endif /* HAVE_GSSAPI && HAVE_XPC */
/*
* 'sigterm_handler()' - Handle 'terminate' signals that stop the backend.
*/
static void
sigterm_handler(int sig) /* I - Signal */
{
(void)sig; /* remove compiler warnings... */
write(2, "DEBUG: Got SIGTERM.\n", 20);
#if defined(HAVE_GSSAPI) && defined(HAVE_XPC)
if (child_pid)
{
kill(child_pid, sig);
child_pid = 0;
}
#endif /* HAVE_GSSAPI && HAVE_XPC */
if (!job_canceled)
{
/*
* Flag that the job should be canceled...
*/
write(2, "DEBUG: sigterm_handler: job_canceled = 1.\n", 25);
job_canceled = 1;
return;
}
/*
* The scheduler already tried to cancel us once, now just terminate
* after removing our temp file!
*/
if (tmpfilename[0])
unlink(tmpfilename);
_exit(1);
}
/*
* 'timeout_cb()' - Handle HTTP timeouts.
*/
static int /* O - 1 to continue, 0 to cancel */
timeout_cb(http_t *http, /* I - Connection to server (unused) */
void *user_data) /* I - User data (unused) */
{
(void)http;
(void)user_data;
return (!job_canceled);
}
/*
* 'update_reasons()' - Update the printer-state-reasons values.
*/
static void
update_reasons(ipp_attribute_t *attr, /* I - printer-state-reasons or NULL */
const char *s) /* I - STATE: string or NULL */
{
char op; /* Add (+), remove (-), replace (\0) */
cups_array_t *new_reasons; /* New reasons array */
char *reason, /* Current reason */
add[2048], /* Reasons added string */
*addptr, /* Pointer into add string */
rem[2048], /* Reasons removed string */
*remptr; /* Pointer into remove string */
const char *addprefix, /* Current add string prefix */
*remprefix; /* Current remove string prefix */
fprintf(stderr, "DEBUG: update_reasons(attr=%d(%s%s), s=\"%s\")\n",
attr ? attr->num_values : 0, attr ? attr->values[0].string.text : "",
attr && attr->num_values > 1 ? ",..." : "", s ? s : "(null)");
/*
* Create an array of new reason keyword strings...
*/
if (attr)
{
int i; /* Looping var */
new_reasons = cupsArrayNew((cups_array_func_t)strcmp, NULL);
op = '\0';
for (i = 0; i < attr->num_values; i ++)
{
reason = attr->values[i].string.text;
if (strcmp(reason, "none") &&
strcmp(reason, "none-report") &&
strcmp(reason, "paused") &&
strncmp(reason, "spool-area-full", 15) &&
strcmp(reason, "com.apple.print.recoverable-warning") &&
strncmp(reason, "cups-", 5))
cupsArrayAdd(new_reasons, reason);
}
}
else if (s)
{
if (*s == '+' || *s == '-')
op = *s++;
else
op = '\0';
new_reasons = _cupsArrayNewStrings(s, ',');
}
else
return;
/*
* Compute the changes...
*/
add[0] = '\0';
addprefix = "STATE: +";
addptr = add;
rem[0] = '\0';
remprefix = "STATE: -";
remptr = rem;
fprintf(stderr, "DEBUG2: op='%c', new_reasons=%d, state_reasons=%d\n",
op ? op : ' ', cupsArrayCount(new_reasons),
cupsArrayCount(state_reasons));
_cupsMutexLock(&report_mutex);
if (op == '+')
{
/*
* Add reasons...
*/
for (reason = (char *)cupsArrayFirst(new_reasons);
reason;
reason = (char *)cupsArrayNext(new_reasons))
{
if (!cupsArrayFind(state_reasons, reason))
{
if (!strncmp(reason, "cups-remote-", 12))
{
/*
* If we are setting cups-remote-xxx, remove all other cups-remote-xxx
* keywords...
*/
char *temp; /* Current reason in state_reasons */
cupsArraySave(state_reasons);
for (temp = (char *)cupsArrayFirst(state_reasons);
temp;
temp = (char *)cupsArrayNext(state_reasons))
if (!strncmp(temp, "cups-remote-", 12))
{
snprintf(remptr, sizeof(rem) - (size_t)(remptr - rem), "%s%s", remprefix, temp);
remptr += strlen(remptr);
remprefix = ",";
cupsArrayRemove(state_reasons, temp);
break;
}
cupsArrayRestore(state_reasons);
}
cupsArrayAdd(state_reasons, reason);
snprintf(addptr, sizeof(add) - (size_t)(addptr - add), "%s%s", addprefix, reason);
addptr += strlen(addptr);
addprefix = ",";
}
}
}
else if (op == '-')
{
/*
* Remove reasons...
*/
for (reason = (char *)cupsArrayFirst(new_reasons);
reason;
reason = (char *)cupsArrayNext(new_reasons))
{
if (cupsArrayFind(state_reasons, reason))
{
snprintf(remptr, sizeof(rem) - (size_t)(remptr - rem), "%s%s", remprefix, reason);
remptr += strlen(remptr);
remprefix = ",";
cupsArrayRemove(state_reasons, reason);
}
}
}
else
{
/*
* Replace reasons...
*/
for (reason = (char *)cupsArrayFirst(state_reasons);
reason;
reason = (char *)cupsArrayNext(state_reasons))
{
if (strncmp(reason, "cups-", 5) && !cupsArrayFind(new_reasons, reason))
{
snprintf(remptr, sizeof(rem) - (size_t)(remptr - rem), "%s%s", remprefix, reason);
remptr += strlen(remptr);
remprefix = ",";
cupsArrayRemove(state_reasons, reason);
}
}
for (reason = (char *)cupsArrayFirst(new_reasons);
reason;
reason = (char *)cupsArrayNext(new_reasons))
{
if (!cupsArrayFind(state_reasons, reason))
{
cupsArrayAdd(state_reasons, reason);
snprintf(addptr, sizeof(add) - (size_t)(addptr - add), "%s%s", addprefix, reason);
addptr += strlen(addptr);
addprefix = ",";
}
}
}
cupsArrayDelete(new_reasons);
_cupsMutexUnlock(&report_mutex);
/*
* Report changes and return...
*/
if (add[0] && rem[0])
fprintf(stderr, "%s\n%s\n", add, rem);
else if (add[0])
fprintf(stderr, "%s\n", add);
else if (rem[0])
fprintf(stderr, "%s\n", rem);
}
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