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/*
* Quota routines for the CUPS scheduler.
*
* Copyright 2007-2011 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
/*
* Include necessary headers...
*/
#include "cupsd.h"
/*
* Local functions...
*/
static cupsd_quota_t *add_quota(cupsd_printer_t *p, const char *username);
static int compare_quotas(const cupsd_quota_t *q1,
const cupsd_quota_t *q2);
/*
* 'cupsdFindQuota()' - Find a quota record.
*/
cupsd_quota_t * /* O - Quota data */
cupsdFindQuota(
cupsd_printer_t *p, /* I - Printer */
const char *username) /* I - User */
{
cupsd_quota_t *q, /* Quota data pointer */
match; /* Search data */
char *ptr; /* Pointer into username */
if (!p || !username)
return (NULL);
strlcpy(match.username, username, sizeof(match.username));
if ((ptr = strchr(match.username, '@')) != NULL)
*ptr = '\0'; /* Strip @domain/@KDC */
if ((q = (cupsd_quota_t *)cupsArrayFind(p->quotas, &match)) != NULL)
return (q);
else
return (add_quota(p, username));
}
/*
* 'cupsdFreeQuotas()' - Free quotas for a printer.
*/
void
cupsdFreeQuotas(cupsd_printer_t *p) /* I - Printer */
{
cupsd_quota_t *q; /* Current quota record */
if (!p)
return;
for (q = (cupsd_quota_t *)cupsArrayFirst(p->quotas);
q;
q = (cupsd_quota_t *)cupsArrayNext(p->quotas))
free(q);
cupsArrayDelete(p->quotas);
p->quotas = NULL;
}
/*
* 'cupsdUpdateQuota()' - Update quota data for the specified printer and user.
*/
cupsd_quota_t * /* O - Quota data */
cupsdUpdateQuota(
cupsd_printer_t *p, /* I - Printer */
const char *username, /* I - User */
int pages, /* I - Number of pages */
int k) /* I - Number of kilobytes */
{
cupsd_quota_t *q; /* Quota data */
cupsd_job_t *job; /* Current job */
time_t curtime; /* Current time */
ipp_attribute_t *attr; /* Job attribute */
if (!p || !username)
return (NULL);
if (!p->k_limit && !p->page_limit)
return (NULL);
if ((q = cupsdFindQuota(p, username)) == NULL)
return (NULL);
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdUpdateQuota: p=%s username=%s pages=%d k=%d",
p->name, username, pages, k);
curtime = time(NULL);
if (curtime < q->next_update)
{
q->page_count += pages;
q->k_count += k;
return (q);
}
if (p->quota_period)
curtime -= p->quota_period;
else
curtime = 0;
q->next_update = 0;
q->page_count = 0;
q->k_count = 0;
for (job = (cupsd_job_t *)cupsArrayFirst(Jobs);
job;
job = (cupsd_job_t *)cupsArrayNext(Jobs))
{
/*
* We only care about the current printer/class and user...
*/
if (_cups_strcasecmp(job->dest, p->name) != 0 ||
_cups_strcasecmp(job->username, q->username) != 0)
continue;
/*
* Make sure attributes are loaded; we always call cupsdLoadJob() to ensure
* the access_time member is updated so the job isn't unloaded right away...
*/
if (!cupsdLoadJob(job))
continue;
if ((attr = ippFindAttribute(job->attrs, "time-at-completion",
IPP_TAG_INTEGER)) == NULL)
if ((attr = ippFindAttribute(job->attrs, "time-at-processing",
IPP_TAG_INTEGER)) == NULL)
attr = ippFindAttribute(job->attrs, "time-at-creation",
IPP_TAG_INTEGER);
if (attr->values[0].integer < curtime)
{
/*
* This job is too old to count towards the quota, ignore it...
*/
if (JobAutoPurge && !job->printer && job->state_value > IPP_JOB_STOPPED)
cupsdDeleteJob(job, CUPSD_JOB_PURGE);
continue;
}
if (q->next_update == 0)
q->next_update = attr->values[0].integer + p->quota_period;
if ((attr = ippFindAttribute(job->attrs, "job-media-sheets-completed",
IPP_TAG_INTEGER)) != NULL)
q->page_count += attr->values[0].integer;
if ((attr = ippFindAttribute(job->attrs, "job-k-octets",
IPP_TAG_INTEGER)) != NULL)
q->k_count += attr->values[0].integer;
}
return (q);
}
/*
* 'add_quota()' - Add a quota record for this printer and user.
*/
static cupsd_quota_t * /* O - Quota data */
add_quota(cupsd_printer_t *p, /* I - Printer */
const char *username) /* I - User */
{
cupsd_quota_t *q; /* New quota data */
char *ptr; /* Pointer into username */
if (!p || !username)
return (NULL);
if (!p->quotas)
p->quotas = cupsArrayNew((cups_array_func_t)compare_quotas, NULL);
if (!p->quotas)
return (NULL);
if ((q = calloc(1, sizeof(cupsd_quota_t))) == NULL)
return (NULL);
strlcpy(q->username, username, sizeof(q->username));
if ((ptr = strchr(q->username, '@')) != NULL)
*ptr = '\0'; /* Strip @domain/@KDC */
cupsArrayAdd(p->quotas, q);
return (q);
}
/*
* 'compare_quotas()' - Compare two quota records...
*/
static int /* O - Result of comparison */
compare_quotas(const cupsd_quota_t *q1, /* I - First quota record */
const cupsd_quota_t *q2) /* I - Second quota record */
{
return (_cups_strcasecmp(q1->username, q2->username));
}
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