aosp12/external/libcups/cups/adminutil.c

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/*
* Administration utility API definitions for CUPS.
*
* Copyright © 2007-2019 by Apple Inc.
* Copyright © 2001-2007 by Easy Software Products.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more
* information.
*/
/*
* Include necessary headers...
*/
#include "cups-private.h"
#include "debug-internal.h"
#include "ppd.h"
#include "adminutil.h"
#include <fcntl.h>
#include <sys/stat.h>
#ifndef _WIN32
# include <unistd.h>
# include <sys/wait.h>
#endif /* !_WIN32 */
/*
* Local functions...
*/
static http_status_t get_cupsd_conf(http_t *http, _cups_globals_t *cg,
time_t last_update, char *name,
size_t namelen, int *remote);
static void invalidate_cupsd_cache(_cups_globals_t *cg);
/*
* 'cupsAdminCreateWindowsPPD()' - Create the Windows PPD file for a printer.
*
* @deprecated@
*/
char * /* O - PPD file or NULL */
cupsAdminCreateWindowsPPD(
http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
const char *dest, /* I - Printer or class */
char *buffer, /* I - Filename buffer */
int bufsize) /* I - Size of filename buffer */
{
(void)http;
(void)dest;
(void)bufsize;
if (buffer)
*buffer = '\0';
return (NULL);
}
/*
* 'cupsAdminExportSamba()' - Export a printer to Samba.
*
* @deprecated@
*/
int /* O - 1 on success, 0 on failure */
cupsAdminExportSamba(
const char *dest, /* I - Destination to export */
const char *ppd, /* I - PPD file */
const char *samba_server, /* I - Samba server */
const char *samba_user, /* I - Samba username */
const char *samba_password, /* I - Samba password */
FILE *logfile) /* I - Log file, if any */
{
(void)dest;
(void)ppd;
(void)samba_server;
(void)samba_user;
(void)samba_password;
(void)logfile;
return (0);
}
/*
* 'cupsAdminGetServerSettings()' - Get settings from the server.
*
* The returned settings should be freed with cupsFreeOptions() when
* you are done with them.
*
* @since CUPS 1.3/macOS 10.5@
*/
int /* O - 1 on success, 0 on failure */
cupsAdminGetServerSettings(
http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
int *num_settings, /* O - Number of settings */
cups_option_t **settings) /* O - Settings */
{
int i; /* Looping var */
cups_file_t *cupsd; /* cupsd.conf file */
char cupsdconf[1024]; /* cupsd.conf filename */
int remote; /* Remote cupsd.conf file? */
http_status_t status; /* Status of getting cupsd.conf */
char line[1024], /* Line from cupsd.conf file */
*value; /* Value on line */
cups_option_t *setting; /* Current setting */
_cups_globals_t *cg = _cupsGlobals(); /* Global data */
/*
* Range check input...
*/
if (!http)
{
/*
* See if we are connected to the same server...
*/
if (cg->http)
{
/*
* Compare the connection hostname, port, and encryption settings to
* the cached defaults; these were initialized the first time we
* connected...
*/
if (strcmp(cg->http->hostname, cg->server) ||
cg->ipp_port != httpAddrPort(cg->http->hostaddr) ||
(cg->http->encryption != cg->encryption &&
cg->http->encryption == HTTP_ENCRYPTION_NEVER))
{
/*
* Need to close the current connection because something has changed...
*/
httpClose(cg->http);
cg->http = NULL;
}
}
/*
* (Re)connect as needed...
*/
if (!cg->http)
{
if ((cg->http = httpConnect2(cupsServer(), ippPort(), NULL, AF_UNSPEC,
cupsEncryption(), 1, 0, NULL)) == NULL)
{
if (errno)
_cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, NULL, 0);
else
_cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE,
_("Unable to connect to host."), 1);
if (num_settings)
*num_settings = 0;
if (settings)
*settings = NULL;
return (0);
}
}
http = cg->http;
}
if (!http || !num_settings || !settings)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
if (num_settings)
*num_settings = 0;
if (settings)
*settings = NULL;
return (0);
}
*num_settings = 0;
*settings = NULL;
/*
* Get the cupsd.conf file...
*/
if ((status = get_cupsd_conf(http, cg, cg->cupsd_update, cupsdconf,
sizeof(cupsdconf), &remote)) == HTTP_STATUS_OK)
{
if ((cupsd = cupsFileOpen(cupsdconf, "r")) == NULL)
{
char message[1024]; /* Message string */
snprintf(message, sizeof(message),
_cupsLangString(cupsLangDefault(), _("Open of %s failed: %s")),
cupsdconf, strerror(errno));
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, message, 0);
}
}
else
cupsd = NULL;
if (cupsd)
{
/*
* Read the file, keeping track of what settings are enabled...
*/
int remote_access = 0, /* Remote access allowed? */
remote_admin = 0, /* Remote administration allowed? */
remote_any = 0, /* Remote access from anywhere allowed? */
browsing = 1, /* Browsing enabled? */
cancel_policy = 1, /* Cancel-job policy set? */
debug_logging = 0; /* LogLevel debug set? */
int linenum = 0, /* Line number in file */
in_location = 0, /* In a location section? */
in_policy = 0, /* In a policy section? */
in_cancel_job = 0, /* In a cancel-job section? */
in_admin_location = 0; /* In the /admin location? */
invalidate_cupsd_cache(cg);
cg->cupsd_update = time(NULL);
httpGetHostname(http, cg->cupsd_hostname, sizeof(cg->cupsd_hostname));
while (cupsFileGetConf(cupsd, line, sizeof(line), &value, &linenum))
{
if (!value && strncmp(line, "</", 2))
value = line + strlen(line);
if ((!_cups_strcasecmp(line, "Port") || !_cups_strcasecmp(line, "Listen")) && value)
{
char *port; /* Pointer to port number, if any */
if ((port = strrchr(value, ':')) != NULL)
*port = '\0';
else if (isdigit(*value & 255))
{
/*
* Listen on a port number implies remote access...
*/
remote_access = 1;
continue;
}
if (_cups_strcasecmp(value, "localhost") && strcmp(value, "127.0.0.1")
#ifdef AF_LOCAL
&& *value != '/'
#endif /* AF_LOCAL */
#ifdef AF_INET6
&& strcmp(value, "[::1]")
#endif /* AF_INET6 */
)
remote_access = 1;
}
else if (!_cups_strcasecmp(line, "Browsing"))
{
browsing = !_cups_strcasecmp(value, "yes") ||
!_cups_strcasecmp(value, "on") ||
!_cups_strcasecmp(value, "true");
}
else if (!_cups_strcasecmp(line, "LogLevel"))
{
debug_logging = !_cups_strncasecmp(value, "debug", 5);
}
else if (!_cups_strcasecmp(line, "<Policy") &&
!_cups_strcasecmp(value, "default"))
{
in_policy = 1;
}
else if (!_cups_strcasecmp(line, "</Policy>"))
{
in_policy = 0;
}
else if (!_cups_strcasecmp(line, "<Limit") && in_policy && value)
{
/*
* See if the policy limit is for the Cancel-Job operation...
*/
char *valptr; /* Pointer into value */
while (*value)
{
for (valptr = value; *valptr && !_cups_isspace(*valptr); valptr ++);
if (*valptr)
*valptr++ = '\0';
if (!_cups_strcasecmp(value, "cancel-job") ||
!_cups_strcasecmp(value, "all"))
{
in_cancel_job = 1;
break;
}
for (value = valptr; _cups_isspace(*value); value ++);
}
}
else if (!_cups_strcasecmp(line, "</Limit>"))
{
in_cancel_job = 0;
}
else if (!_cups_strcasecmp(line, "Require") && in_cancel_job)
{
cancel_policy = 0;
}
else if (!_cups_strcasecmp(line, "<Location") && value)
{
in_admin_location = !_cups_strcasecmp(value, "/admin");
in_location = 1;
}
else if (!_cups_strcasecmp(line, "</Location>"))
{
in_admin_location = 0;
in_location = 0;
}
else if (!_cups_strcasecmp(line, "Allow") && value &&
_cups_strcasecmp(value, "localhost") &&
_cups_strcasecmp(value, "127.0.0.1")
#ifdef AF_LOCAL
&& *value != '/'
#endif /* AF_LOCAL */
#ifdef AF_INET6
&& strcmp(value, "::1")
#endif /* AF_INET6 */
)
{
if (in_admin_location)
remote_admin = 1;
else if (!_cups_strcasecmp(value, "all"))
remote_any = 1;
}
else if (line[0] != '<' && !in_location && !in_policy &&
_cups_strcasecmp(line, "Allow") &&
_cups_strcasecmp(line, "AuthType") &&
_cups_strcasecmp(line, "Deny") &&
_cups_strcasecmp(line, "Order") &&
_cups_strcasecmp(line, "Require") &&
_cups_strcasecmp(line, "Satisfy"))
cg->cupsd_num_settings = cupsAddOption(line, value,
cg->cupsd_num_settings,
&(cg->cupsd_settings));
}
cupsFileClose(cupsd);
cg->cupsd_num_settings = cupsAddOption(CUPS_SERVER_DEBUG_LOGGING,
debug_logging ? "1" : "0",
cg->cupsd_num_settings,
&(cg->cupsd_settings));
cg->cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ADMIN,
(remote_access && remote_admin) ?
"1" : "0",
cg->cupsd_num_settings,
&(cg->cupsd_settings));
cg->cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ANY,
remote_any ? "1" : "0",
cg->cupsd_num_settings,
&(cg->cupsd_settings));
cg->cupsd_num_settings = cupsAddOption(CUPS_SERVER_SHARE_PRINTERS,
(remote_access && browsing) ? "1" :
"0",
cg->cupsd_num_settings,
&(cg->cupsd_settings));
cg->cupsd_num_settings = cupsAddOption(CUPS_SERVER_USER_CANCEL_ANY,
cancel_policy ? "1" : "0",
cg->cupsd_num_settings,
&(cg->cupsd_settings));
}
else if (status != HTTP_STATUS_NOT_MODIFIED)
invalidate_cupsd_cache(cg);
/*
* Remove any temporary files and copy the settings array...
*/
if (remote)
unlink(cupsdconf);
for (i = cg->cupsd_num_settings, setting = cg->cupsd_settings;
i > 0;
i --, setting ++)
*num_settings = cupsAddOption(setting->name, setting->value,
*num_settings, settings);
return (cg->cupsd_num_settings > 0);
}
/*
* 'cupsAdminSetServerSettings()' - Set settings on the server.
*
* @since CUPS 1.3/macOS 10.5@
*/
int /* O - 1 on success, 0 on failure */
cupsAdminSetServerSettings(
http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
int num_settings, /* I - Number of settings */
cups_option_t *settings) /* I - Settings */
{
int i; /* Looping var */
http_status_t status; /* GET/PUT status */
const char *server_port_env; /* SERVER_PORT env var */
int server_port; /* IPP port for server */
cups_file_t *cupsd; /* cupsd.conf file */
char cupsdconf[1024]; /* cupsd.conf filename */
int remote; /* Remote cupsd.conf file? */
char tempfile[1024]; /* Temporary new cupsd.conf */
cups_file_t *temp; /* Temporary file */
char line[1024], /* Line from cupsd.conf file */
*value; /* Value on line */
int linenum, /* Line number in file */
in_location, /* In a location section? */
in_policy, /* In a policy section? */
in_default_policy, /* In the default policy section? */
in_cancel_job, /* In a cancel-job section? */
in_admin_location, /* In the /admin location? */
in_conf_location, /* In the /admin/conf location? */
in_log_location, /* In the /admin/log location? */
in_root_location; /* In the / location? */
const char *val; /* Setting value */
int share_printers, /* Share local printers */
remote_admin, /* Remote administration allowed? */
remote_any, /* Remote access from anywhere? */
user_cancel_any, /* Cancel-job policy set? */
debug_logging; /* LogLevel debug set? */
int wrote_port_listen, /* Wrote the port/listen lines? */
wrote_browsing, /* Wrote the browsing lines? */
wrote_policy, /* Wrote the policy? */
wrote_loglevel, /* Wrote the LogLevel line? */
wrote_admin_location, /* Wrote the /admin location? */
wrote_conf_location, /* Wrote the /admin/conf location? */
wrote_log_location, /* Wrote the /admin/log location? */
wrote_root_location; /* Wrote the / location? */
int indent; /* Indentation */
int cupsd_num_settings; /* New number of settings */
int old_share_printers, /* Share local printers */
old_remote_admin, /* Remote administration allowed? */
old_remote_any, /* Remote access from anywhere? */
old_user_cancel_any, /* Cancel-job policy set? */
old_debug_logging; /* LogLevel debug set? */
cups_option_t *cupsd_settings, /* New settings */
*setting; /* Current setting */
_cups_globals_t *cg = _cupsGlobals(); /* Global data */
/*
* Range check input...
*/
if (!http)
http = _cupsConnect();
if (!http || !num_settings || !settings)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);
return (0);
}
/*
* Get the cupsd.conf file...
*/
if (get_cupsd_conf(http, cg, 0, cupsdconf, sizeof(cupsdconf),
&remote) == HTTP_STATUS_OK)
{
if ((cupsd = cupsFileOpen(cupsdconf, "r")) == NULL)
{
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0);
return (0);
}
}
else
return (0);
/*
* Get current settings...
*/
if (!cupsAdminGetServerSettings(http, &cupsd_num_settings,
&cupsd_settings))
return (0);
if ((val = cupsGetOption(CUPS_SERVER_DEBUG_LOGGING, cupsd_num_settings,
cupsd_settings)) != NULL)
old_debug_logging = atoi(val);
else
old_debug_logging = 0;
DEBUG_printf(("1cupsAdminSetServerSettings: old debug_logging=%d",
old_debug_logging));
if ((val = cupsGetOption(CUPS_SERVER_REMOTE_ADMIN, cupsd_num_settings,
cupsd_settings)) != NULL)
old_remote_admin = atoi(val);
else
old_remote_admin = 0;
DEBUG_printf(("1cupsAdminSetServerSettings: old remote_admin=%d",
old_remote_admin));
if ((val = cupsGetOption(CUPS_SERVER_REMOTE_ANY, cupsd_num_settings,
cupsd_settings)) != NULL)
old_remote_any = atoi(val);
else
old_remote_any = 0;
DEBUG_printf(("1cupsAdminSetServerSettings: old remote_any=%d",
old_remote_any));
if ((val = cupsGetOption(CUPS_SERVER_SHARE_PRINTERS, cupsd_num_settings,
cupsd_settings)) != NULL)
old_share_printers = atoi(val);
else
old_share_printers = 0;
DEBUG_printf(("1cupsAdminSetServerSettings: old share_printers=%d",
old_share_printers));
if ((val = cupsGetOption(CUPS_SERVER_USER_CANCEL_ANY, cupsd_num_settings,
cupsd_settings)) != NULL)
old_user_cancel_any = atoi(val);
else
old_user_cancel_any = 0;
DEBUG_printf(("1cupsAdminSetServerSettings: old user_cancel_any=%d",
old_user_cancel_any));
cupsFreeOptions(cupsd_num_settings, cupsd_settings);
/*
* Get basic settings...
*/
if ((val = cupsGetOption(CUPS_SERVER_DEBUG_LOGGING, num_settings,
settings)) != NULL)
{
debug_logging = atoi(val);
if (debug_logging == old_debug_logging)
{
/*
* No change to this setting...
*/
debug_logging = -1;
}
}
else
debug_logging = -1;
DEBUG_printf(("1cupsAdminSetServerSettings: debug_logging=%d",
debug_logging));
if ((val = cupsGetOption(CUPS_SERVER_REMOTE_ANY, num_settings, settings)) != NULL)
{
remote_any = atoi(val);
if (remote_any == old_remote_any)
{
/*
* No change to this setting...
*/
remote_any = -1;
}
}
else
remote_any = -1;
DEBUG_printf(("1cupsAdminSetServerSettings: remote_any=%d", remote_any));
if ((val = cupsGetOption(CUPS_SERVER_REMOTE_ADMIN, num_settings,
settings)) != NULL)
{
remote_admin = atoi(val);
if (remote_admin == old_remote_admin)
{
/*
* No change to this setting...
*/
remote_admin = -1;
}
}
else
remote_admin = -1;
DEBUG_printf(("1cupsAdminSetServerSettings: remote_admin=%d",
remote_admin));
if ((val = cupsGetOption(CUPS_SERVER_SHARE_PRINTERS, num_settings,
settings)) != NULL)
{
share_printers = atoi(val);
if (share_printers == old_share_printers)
{
/*
* No change to this setting...
*/
share_printers = -1;
}
}
else
share_printers = -1;
DEBUG_printf(("1cupsAdminSetServerSettings: share_printers=%d",
share_printers));
if ((val = cupsGetOption(CUPS_SERVER_USER_CANCEL_ANY, num_settings,
settings)) != NULL)
{
user_cancel_any = atoi(val);
if (user_cancel_any == old_user_cancel_any)
{
/*
* No change to this setting...
*/
user_cancel_any = -1;
}
}
else
user_cancel_any = -1;
DEBUG_printf(("1cupsAdminSetServerSettings: user_cancel_any=%d",
user_cancel_any));
/*
* Create a temporary file for the new cupsd.conf file...
*/
if ((temp = cupsTempFile2(tempfile, sizeof(tempfile))) == NULL)
{
cupsFileClose(cupsd);
if (remote)
unlink(cupsdconf);
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0);
return (0);
}
/*
* Copy the old file to the new, making changes along the way...
*/
cupsd_num_settings = 0;
in_admin_location = 0;
in_cancel_job = 0;
in_conf_location = 0;
in_default_policy = 0;
in_location = 0;
in_log_location = 0;
in_policy = 0;
in_root_location = 0;
linenum = 0;
wrote_admin_location = 0;
wrote_browsing = 0;
wrote_conf_location = 0;
wrote_log_location = 0;
wrote_loglevel = 0;
wrote_policy = 0;
wrote_port_listen = 0;
wrote_root_location = 0;
indent = 0;
if ((server_port_env = getenv("SERVER_PORT")) != NULL)
{
if ((server_port = atoi(server_port_env)) <= 0)
server_port = ippPort();
}
else
server_port = ippPort();
if (server_port <= 0)
server_port = IPP_PORT;
while (cupsFileGetConf(cupsd, line, sizeof(line), &value, &linenum))
{
if ((!_cups_strcasecmp(line, "Port") || !_cups_strcasecmp(line, "Listen")) &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
if (!wrote_port_listen)
{
wrote_port_listen = 1;
if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
{
cupsFilePuts(temp, "# Allow remote access\n");
cupsFilePrintf(temp, "Port %d\n", server_port);
}
else
{
cupsFilePuts(temp, "# Only listen for connections from the local "
"machine.\n");
cupsFilePrintf(temp, "Listen localhost:%d\n", server_port);
}
#ifdef CUPS_DEFAULT_DOMAINSOCKET
if ((!value || strcmp(CUPS_DEFAULT_DOMAINSOCKET, value)) &&
!access(CUPS_DEFAULT_DOMAINSOCKET, 0))
cupsFilePuts(temp, "Listen " CUPS_DEFAULT_DOMAINSOCKET "\n");
#endif /* CUPS_DEFAULT_DOMAINSOCKET */
}
else if (value && value[0] == '/'
#ifdef CUPS_DEFAULT_DOMAINSOCKET
&& strcmp(CUPS_DEFAULT_DOMAINSOCKET, value)
#endif /* CUPS_DEFAULT_DOMAINSOCKET */
)
cupsFilePrintf(temp, "Listen %s\n", value);
}
else if ((!_cups_strcasecmp(line, "Browsing") ||
!_cups_strcasecmp(line, "BrowseLocalProtocols")) &&
share_printers >= 0)
{
if (!wrote_browsing)
{
wrote_browsing = 1;
if (share_printers)
{
const char *localp = cupsGetOption("BrowseLocalProtocols",
num_settings, settings);
if (!localp || !localp[0])
localp = cupsGetOption("BrowseLocalProtocols", cupsd_num_settings,
cupsd_settings);
cupsFilePuts(temp, "# Share local printers on the local network.\n");
cupsFilePuts(temp, "Browsing On\n");
if (!localp)
localp = CUPS_DEFAULT_BROWSE_LOCAL_PROTOCOLS;
cupsFilePrintf(temp, "BrowseLocalProtocols %s\n", localp);
cupsd_num_settings = cupsAddOption("BrowseLocalProtocols", localp,
cupsd_num_settings,
&cupsd_settings);
}
else
{
cupsFilePuts(temp, "# Disable printer sharing.\n");
cupsFilePuts(temp, "Browsing Off\n");
}
}
}
else if (!_cups_strcasecmp(line, "LogLevel") && debug_logging >= 0)
{
wrote_loglevel = 1;
if (debug_logging)
{
cupsFilePuts(temp,
"# Show troubleshooting information in error_log.\n");
cupsFilePuts(temp, "LogLevel debug\n");
}
else
{
cupsFilePuts(temp, "# Show general information in error_log.\n");
cupsFilePuts(temp, "LogLevel " CUPS_DEFAULT_LOG_LEVEL "\n");
}
}
else if (!_cups_strcasecmp(line, "<Policy"))
{
in_default_policy = !_cups_strcasecmp(value, "default");
in_policy = 1;
cupsFilePrintf(temp, "%s %s>\n", line, value);
indent += 2;
}
else if (!_cups_strcasecmp(line, "</Policy>"))
{
indent -= 2;
if (!wrote_policy && in_default_policy)
{
wrote_policy = 1;
if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can "
"cancel a job...\n"
" <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
" </Limit>\n");
}
in_policy = 0;
in_default_policy = 0;
cupsFilePuts(temp, "</Policy>\n");
}
else if (!_cups_strcasecmp(line, "<Location"))
{
in_location = 1;
indent += 2;
if (!strcmp(value, "/admin"))
in_admin_location = 1;
else if (!strcmp(value, "/admin/conf"))
in_conf_location = 1;
else if (!strcmp(value, "/admin/log"))
in_log_location = 1;
else if (!strcmp(value, "/"))
in_root_location = 1;
cupsFilePrintf(temp, "%s %s>\n", line, value);
}
else if (!_cups_strcasecmp(line, "</Location>"))
{
in_location = 0;
indent -= 2;
if (in_admin_location && remote_admin >= 0)
{
wrote_admin_location = 1;
if (remote_admin)
cupsFilePuts(temp, " # Allow remote administration...\n");
else if (remote_admin == 0)
cupsFilePuts(temp, " # Restrict access to the admin pages...\n");
cupsFilePuts(temp, " Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n",
remote_any > 0 ? "all" : "@LOCAL");
}
else if (in_conf_location && remote_admin >= 0)
{
wrote_conf_location = 1;
if (remote_admin)
cupsFilePuts(temp, " # Allow remote access to the configuration "
"files...\n");
else
cupsFilePuts(temp, " # Restrict access to the configuration "
"files...\n");
cupsFilePuts(temp, " Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n",
remote_any > 0 ? "all" : "@LOCAL");
}
else if (in_log_location && remote_admin >= 0)
{
wrote_log_location = 1;
if (remote_admin)
cupsFilePuts(temp, " # Allow remote access to the log "
"files...\n");
else
cupsFilePuts(temp, " # Restrict access to the log "
"files...\n");
cupsFilePuts(temp, " Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n",
remote_any > 0 ? "all" : "@LOCAL");
}
else if (in_root_location &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
wrote_root_location = 1;
if (remote_admin > 0 && share_printers > 0)
cupsFilePuts(temp, " # Allow shared printing and remote "
"administration...\n");
else if (remote_admin > 0)
cupsFilePuts(temp, " # Allow remote administration...\n");
else if (share_printers > 0)
cupsFilePuts(temp, " # Allow shared printing...\n");
else if (remote_any > 0)
cupsFilePuts(temp, " # Allow remote access...\n");
else
cupsFilePuts(temp, " # Restrict access to the server...\n");
cupsFilePuts(temp, " Order allow,deny\n");
if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
cupsFilePrintf(temp, " Allow %s\n",
remote_any > 0 ? "all" : "@LOCAL");
}
in_admin_location = 0;
in_conf_location = 0;
in_log_location = 0;
in_root_location = 0;
cupsFilePuts(temp, "</Location>\n");
}
else if (!_cups_strcasecmp(line, "<Limit"))
{
if (in_default_policy)
{
/*
* See if the policy limit is for the Cancel-Job operation...
*/
char *valptr; /* Pointer into value */
if (!_cups_strcasecmp(value, "cancel-job") && user_cancel_any >= 0)
{
/*
* Don't write anything for this limit section...
*/
in_cancel_job = 2;
}
else
{
cupsFilePrintf(temp, "%*s%s", indent, "", line);
while (*value)
{
for (valptr = value; *valptr && !_cups_isspace(*valptr); valptr ++);
if (*valptr)
*valptr++ = '\0';
if (!_cups_strcasecmp(value, "cancel-job") && user_cancel_any >= 0)
{
/*
* Write everything except for this definition...
*/
in_cancel_job = 1;
}
else
cupsFilePrintf(temp, " %s", value);
for (value = valptr; _cups_isspace(*value); value ++);
}
cupsFilePuts(temp, ">\n");
}
}
else
cupsFilePrintf(temp, "%*s%s %s>\n", indent, "", line, value);
indent += 2;
}
else if (!_cups_strcasecmp(line, "</Limit>") && in_cancel_job)
{
indent -= 2;
if (in_cancel_job == 1)
cupsFilePuts(temp, " </Limit>\n");
wrote_policy = 1;
if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can cancel "
"a job...\n"
" <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
" </Limit>\n");
in_cancel_job = 0;
}
else if ((((in_admin_location || in_conf_location || in_root_location || in_log_location) &&
(remote_admin >= 0 || remote_any >= 0)) ||
(in_root_location && share_printers >= 0)) &&
(!_cups_strcasecmp(line, "Allow") || !_cups_strcasecmp(line, "Deny") ||
!_cups_strcasecmp(line, "Order")))
continue;
else if (in_cancel_job == 2)
continue;
else if (line[0] == '<')
{
if (value)
{
cupsFilePrintf(temp, "%*s%s %s>\n", indent, "", line, value);
indent += 2;
}
else
{
if (line[1] == '/')
indent -= 2;
cupsFilePrintf(temp, "%*s%s\n", indent, "", line);
}
}
else if (!in_policy && !in_location &&
(val = cupsGetOption(line, num_settings, settings)) != NULL)
{
/*
* Replace this directive's value with the new one...
*/
cupsd_num_settings = cupsAddOption(line, val, cupsd_num_settings,
&cupsd_settings);
/*
* Write the new value in its place, without indentation since we
* only support setting root directives, not in sections...
*/
cupsFilePrintf(temp, "%s %s\n", line, val);
}
else if (value)
{
if (!in_policy && !in_location)
{
/*
* Record the non-policy, non-location directives that we find
* in the server settings, since we cache this info and record it
* in cupsAdminGetServerSettings()...
*/
cupsd_num_settings = cupsAddOption(line, value, cupsd_num_settings,
&cupsd_settings);
}
cupsFilePrintf(temp, "%*s%s %s\n", indent, "", line, value);
}
else
cupsFilePrintf(temp, "%*s%s\n", indent, "", line);
}
/*
* Write any missing info...
*/
if (!wrote_browsing && share_printers >= 0)
{
if (share_printers > 0)
{
cupsFilePuts(temp, "# Share local printers on the local network.\n");
cupsFilePuts(temp, "Browsing On\n");
}
else
{
cupsFilePuts(temp, "# Disable printer sharing and shared printers.\n");
cupsFilePuts(temp, "Browsing Off\n");
}
}
if (!wrote_loglevel && debug_logging >= 0)
{
if (debug_logging)
{
cupsFilePuts(temp, "# Show troubleshooting information in error_log.\n");
cupsFilePuts(temp, "LogLevel debug\n");
}
else
{
cupsFilePuts(temp, "# Show general information in error_log.\n");
cupsFilePuts(temp, "LogLevel " CUPS_DEFAULT_LOG_LEVEL "\n");
}
}
if (!wrote_port_listen &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
{
cupsFilePuts(temp, "# Allow remote access\n");
cupsFilePrintf(temp, "Port %d\n", ippPort());
}
else
{
cupsFilePuts(temp,
"# Only listen for connections from the local machine.\n");
cupsFilePrintf(temp, "Listen localhost:%d\n", ippPort());
}
#ifdef CUPS_DEFAULT_DOMAINSOCKET
if (!access(CUPS_DEFAULT_DOMAINSOCKET, 0))
cupsFilePuts(temp, "Listen " CUPS_DEFAULT_DOMAINSOCKET "\n");
#endif /* CUPS_DEFAULT_DOMAINSOCKET */
}
if (!wrote_root_location &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
if (remote_admin > 0 && share_printers > 0)
cupsFilePuts(temp,
"# Allow shared printing and remote administration...\n");
else if (remote_admin > 0)
cupsFilePuts(temp, "# Allow remote administration...\n");
else if (share_printers > 0)
cupsFilePuts(temp, "# Allow shared printing...\n");
else if (remote_any > 0)
cupsFilePuts(temp, "# Allow remote access...\n");
else
cupsFilePuts(temp, "# Restrict access to the server...\n");
cupsFilePuts(temp, "<Location />\n"
" Order allow,deny\n");
if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
cupsFilePrintf(temp, " Allow %s\n", remote_any > 0 ? "all" : "@LOCAL");
cupsFilePuts(temp, "</Location>\n");
}
if (!wrote_admin_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp, "# Allow remote administration...\n");
else
cupsFilePuts(temp, "# Restrict access to the admin pages...\n");
cupsFilePuts(temp, "<Location /admin>\n"
" Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n", remote_any > 0 ? "all" : "@LOCAL");
cupsFilePuts(temp, "</Location>\n");
}
if (!wrote_conf_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp,
"# Allow remote access to the configuration files...\n");
else
cupsFilePuts(temp, "# Restrict access to the configuration files...\n");
cupsFilePuts(temp, "<Location /admin/conf>\n"
" AuthType Default\n"
" Require user @SYSTEM\n"
" Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n", remote_any > 0 ? "all" : "@LOCAL");
cupsFilePuts(temp, "</Location>\n");
}
if (!wrote_log_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp,
"# Allow remote access to the log files...\n");
else
cupsFilePuts(temp, "# Restrict access to the log files...\n");
cupsFilePuts(temp, "<Location /admin/log>\n"
" AuthType Default\n"
" Require user @SYSTEM\n"
" Order allow,deny\n");
if (remote_admin)
cupsFilePrintf(temp, " Allow %s\n", remote_any > 0 ? "all" : "@LOCAL");
cupsFilePuts(temp, "</Location>\n");
}
if (!wrote_policy && user_cancel_any >= 0)
{
cupsFilePuts(temp, "<Policy default>\n"
" # Job-related operations must be done by the owner "
"or an administrator...\n"
" <Limit Send-Document Send-URI Hold-Job Release-Job "
"Restart-Job Purge-Jobs Set-Job-Attributes "
"Create-Job-Subscription Renew-Subscription "
"Cancel-Subscription Get-Notifications Reprocess-Job "
"Cancel-Current-Job Suspend-Current-Job Resume-Job "
"CUPS-Move-Job>\n"
" Require user @OWNER @SYSTEM\n"
" Order deny,allow\n"
" </Limit>\n"
" # All administration operations require an "
"administrator to authenticate...\n"
" <Limit Pause-Printer Resume-Printer "
"Set-Printer-Attributes Enable-Printer "
"Disable-Printer Pause-Printer-After-Current-Job "
"Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer "
"Activate-Printer Restart-Printer Shutdown-Printer "
"Startup-Printer Promote-Job Schedule-Job-After "
"CUPS-Add-Printer CUPS-Delete-Printer "
"CUPS-Add-Class CUPS-Delete-Class "
"CUPS-Accept-Jobs CUPS-Reject-Jobs "
"CUPS-Set-Default CUPS-Add-Device CUPS-Delete-Device>\n"
" AuthType Default\n"
" Require user @SYSTEM\n"
" Order deny,allow\n"
"</Limit>\n");
if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can cancel "
"a job...\n"
" <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
" </Limit>\n");
cupsFilePuts(temp, " <Limit All>\n"
" Order deny,allow\n"
" </Limit>\n"
"</Policy>\n");
}
for (i = num_settings, setting = settings; i > 0; i --, setting ++)
if (setting->name[0] != '_' &&
_cups_strcasecmp(setting->name, "Listen") &&
_cups_strcasecmp(setting->name, "Port") &&
!cupsGetOption(setting->name, cupsd_num_settings, cupsd_settings))
{
/*
* Add this directive to the list of directives we have written...
*/
cupsd_num_settings = cupsAddOption(setting->name, setting->value,
cupsd_num_settings, &cupsd_settings);
/*
* Write the new value, without indentation since we only support
* setting root directives, not in sections...
*/
cupsFilePrintf(temp, "%s %s\n", setting->name, setting->value);
}
cupsFileClose(cupsd);
cupsFileClose(temp);
/*
* Upload the configuration file to the server...
*/
status = cupsPutFile(http, "/admin/conf/cupsd.conf", tempfile);
if (status == HTTP_STATUS_CREATED)
{
/*
* Updated OK, add the basic settings...
*/
if (debug_logging >= 0)
cupsd_num_settings = cupsAddOption(CUPS_SERVER_DEBUG_LOGGING,
debug_logging ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
else
cupsd_num_settings = cupsAddOption(CUPS_SERVER_DEBUG_LOGGING,
old_debug_logging ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
if (remote_admin >= 0)
cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ADMIN,
remote_admin ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
else
cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ADMIN,
old_remote_admin ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
if (remote_any >= 0)
cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ANY,
remote_any ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
else
cupsd_num_settings = cupsAddOption(CUPS_SERVER_REMOTE_ANY,
old_remote_any ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
if (share_printers >= 0)
cupsd_num_settings = cupsAddOption(CUPS_SERVER_SHARE_PRINTERS,
share_printers ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
else
cupsd_num_settings = cupsAddOption(CUPS_SERVER_SHARE_PRINTERS,
old_share_printers ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
if (user_cancel_any >= 0)
cupsd_num_settings = cupsAddOption(CUPS_SERVER_USER_CANCEL_ANY,
user_cancel_any ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
else
cupsd_num_settings = cupsAddOption(CUPS_SERVER_USER_CANCEL_ANY,
old_user_cancel_any ? "1" : "0",
cupsd_num_settings, &cupsd_settings);
/*
* Save the new values...
*/
invalidate_cupsd_cache(cg);
cg->cupsd_num_settings = cupsd_num_settings;
cg->cupsd_settings = cupsd_settings;
cg->cupsd_update = time(NULL);
httpGetHostname(http, cg->cupsd_hostname, sizeof(cg->cupsd_hostname));
}
else
cupsFreeOptions(cupsd_num_settings, cupsd_settings);
/*
* Remote our temp files and return...
*/
if (remote)
unlink(cupsdconf);
unlink(tempfile);
return (status == HTTP_STATUS_CREATED);
}
/*
* 'get_cupsd_conf()' - Get the current cupsd.conf file.
*/
static http_status_t /* O - Status of request */
get_cupsd_conf(
http_t *http, /* I - Connection to server */
_cups_globals_t *cg, /* I - Global data */
time_t last_update, /* I - Last update time for file */
char *name, /* I - Filename buffer */
size_t namesize, /* I - Size of filename buffer */
int *remote) /* O - Remote file? */
{
int fd; /* Temporary file descriptor */
#ifndef _WIN32
struct stat info; /* cupsd.conf file information */
#endif /* _WIN32 */
http_status_t status; /* Status of getting cupsd.conf */
char host[HTTP_MAX_HOST]; /* Hostname for connection */
/*
* See if we already have the data we need...
*/
httpGetHostname(http, host, sizeof(host));
if (_cups_strcasecmp(cg->cupsd_hostname, host))
invalidate_cupsd_cache(cg);
snprintf(name, namesize, "%s/cupsd.conf", cg->cups_serverroot);
*remote = 0;
#ifndef _WIN32
if (!_cups_strcasecmp(host, "localhost") && !access(name, R_OK))
{
/*
* Read the local file rather than using HTTP...
*/
if (stat(name, &info))
{
char message[1024]; /* Message string */
snprintf(message, sizeof(message),
_cupsLangString(cupsLangDefault(), _("stat of %s failed: %s")),
name, strerror(errno));
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, message, 0);
*name = '\0';
return (HTTP_STATUS_SERVER_ERROR);
}
else if (last_update && info.st_mtime <= last_update)
status = HTTP_STATUS_NOT_MODIFIED;
else
status = HTTP_STATUS_OK;
}
else
#endif /* !_WIN32 */
{
/*
* Read cupsd.conf via a HTTP GET request...
*/
if ((fd = cupsTempFd(name, (int)namesize)) < 0)
{
*name = '\0';
_cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0);
invalidate_cupsd_cache(cg);
return (HTTP_STATUS_SERVER_ERROR);
}
*remote = 1;
httpClearFields(http);
if (last_update)
httpSetField(http, HTTP_FIELD_IF_MODIFIED_SINCE,
httpGetDateString(last_update));
status = cupsGetFd(http, "/admin/conf/cupsd.conf", fd);
close(fd);
if (status != HTTP_STATUS_OK)
{
unlink(name);
*name = '\0';
}
}
return (status);
}
/*
* 'invalidate_cupsd_cache()' - Invalidate the cached cupsd.conf settings.
*/
static void
invalidate_cupsd_cache(
_cups_globals_t *cg) /* I - Global data */
{
cupsFreeOptions(cg->cupsd_num_settings, cg->cupsd_settings);
cg->cupsd_hostname[0] = '\0';
cg->cupsd_update = 0;
cg->cupsd_num_settings = 0;
cg->cupsd_settings = NULL;
}