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ipurge.c
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ipurge.c
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/*
* ipurge
*
* delete mail from cyrus imap mailbox or partition
* based on date (or size?)
*
* includes support for ISPN virtual host extensions
*
* $Id: ipurge.c,v 1.7 2000/06/04 22:46:36 leg Exp $
* Copyright (c) 2000 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any other legal
* details, please contact
* Office of Technology Transfer
* Carnegie Mellon University
* 5000 Forbes Avenue
* Pittsburgh, PA 15213-3890
* (412) 268-4387, fax: (412) 268-7395
* tech-transfer@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*
*/
#include <config.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <syslog.h>
#include <com_err.h>
#include <string.h>
#include <time.h>
/* cyrus includes */
#include "imapconf.h"
#include "sysexits.h"
#include "imap_err.h"
#include "mailbox.h"
#include "xmalloc.h"
#include "mboxlist.h"
/* globals for getopt routines */
extern char *optarg;
extern int optind;
extern int opterr;
extern int optopt;
/* globals for callback functions */
int days = -1;
int size = -1;
int exact = -1;
int pattern = -1;
/* for statistical purposes */
typedef struct mbox_stats_s {
int total; /* total including those deleted */
int total_bytes;
int deleted;
int deleted_bytes;
} mbox_stats_t;
int verbose = 1;
int purge_me(char *, int, int);
int purge_check(void *, char *);
int usage(char *name);
void print_stats(mbox_stats_t *stats);
int
main (int argc, char *argv[]) {
char option;
char buf[MAX_MAILBOX_PATH];
if (geteuid() == 0) { /* don't run as root, changes permissions */
usage(argv[0]);
}
while ((option = getopt(argc, argv, "hxd:b:k:m:")) != EOF) {
switch (option) {
case 'd': {
if (optarg == 0) {
usage(argv[0]);
}
days = atoi(optarg) * 86400 /* nominal # of seconds in a 'day' */;
} break;
case 'b': {
if (optarg == 0) {
usage(argv[0]);
}
size = atoi(optarg);
} break;
case 'k': {
if (optarg == 0) {
usage(argv[0]);
}
size = atoi(optarg) * 1024; /* make it bytes */
} break;
case 'm': {
if (optarg == 0) {
usage(argv[0]);
}
size = atoi(optarg) * 1048576; /* 1024 * 1024 */
} break;
case 'x' : {
exact = 1;
} break;
case 'h':
default: usage(argv[0]);
}
}
if ((days == -1 ) && (size == -1)) {
printf("One of these must be specified -d, -b -k, -m\n");
usage(argv[0]);
}
config_init("ipurge");
if (geteuid() == 0) fatal("must run as the Cyrus user", EX_USAGE);
mboxlist_init(0);
mboxlist_open(NULL);
if (optind == argc) { /* do the whole partition */
strcpy(buf, "*");
mboxlist_findall(buf, 1, 0, 0, purge_me, NULL);
} else {
for (; optind < argc; optind++) {
strncpy(buf, argv[optind], MAX_MAILBOX_NAME);
mboxlist_findall(buf, 1, 0, 0, purge_me, NULL);
}
}
mboxlist_close();
mboxlist_done();
return 0;
}
int
usage(char *name) {
printf("usage: %s [-x] {-d days &| -b bytes|-k Kbytes|-m Mbytes}\n\t[mboxpattern1 ... [mboxpatternN]]\n", name);
printf("\tthere are no defaults and at least one of -d, -b, -k, -m\n\tmust be specified\n");
printf("\tif no mboxpattern is given %s works on all mailboxes\n", name);
printf("\t -x specifies an exact match for days or size\n");
exit(0);
}
/* we don't check what comes in on matchlen and maycreate, should we? */
int
purge_me(char *name, int matchlen, int maycreate) {
struct mailbox the_box;
int error;
mbox_stats_t stats;
/* DON'T purge INBOX* and user.* */
if ((strncasecmp(name,"INBOX",5)==0) || (strncasecmp(name,"user.",5)==0))
return 0;
memset(&stats, '\0', sizeof(mbox_stats_t));
if (verbose)
printf("Working on %s...\n",name);
error = mailbox_open_header(name, 0, &the_box);
if (error != 0) { /* did we find it? */
syslog(LOG_ERR, "Couldn't find %s, check spelling (user.????)", name);
return error;
}
if (the_box.header_fd != -1) {
(void) mailbox_lock_header(&the_box);
}
the_box.header_lock_count = 1;
error = chdir(the_box.path);
if (error < 0) {
syslog(LOG_ERR, "Couldn't change directory to %s : %m", the_box.path);
return error;
}
error = mailbox_open_index(&the_box);
if (error != 0) {
mailbox_close(&the_box);
syslog(LOG_ERR, "Couldn't open mailbox index for %s", name);
return error;
}
(void) mailbox_lock_index(&the_box);
the_box.index_lock_count = 1;
mailbox_expunge(&the_box, 1, purge_check, &stats);
mailbox_close(&the_box);
print_stats(&stats);
return 0;
}
void deleteit(struct index_record *the_record, mbox_stats_t *stats)
{
stats->deleted++;
stats->deleted_bytes+=the_record->size;
}
/* thumbs up routine, checks date & size and returns yes or no for deletion */
/* 0 = no, 1 = yes */
int
purge_check(void *deciderock, char *buf) {
struct index_record *the_record;
unsigned long my_time;
mbox_stats_t *stats = (mbox_stats_t *) deciderock;
the_record = (struct index_record *)buf;
stats->total++;
stats->total_bytes+=the_record->size;
if (exact == 1) {
if (days >= 0) {
my_time = time(0);
/* printf("comparing %ld :: %ld\n", my_time, the_record->sentdate); */
if (((my_time - the_record->sentdate)/86400) == (days/86400)) {
deleteit(the_record, stats);
return 1;
}
}
if (size >= 0) {
/* check size */
if (the_record->size == size) {
deleteit(the_record, stats);
return 1;
}
}
return 0;
} else {
if (days >= 0) {
my_time = time(0);
/* printf("comparing %ld :: %ld\n", my_time, the_record->sentdate); */
if ((my_time - the_record->sentdate) > days) {
deleteit(the_record, stats);
return 1;
}
}
if (size >= 0) {
/* check size */
if (the_record->size > size) {
deleteit(the_record, stats);
return 1;
}
}
return 0;
}
}
void print_stats(mbox_stats_t *stats)
{
printf("total messages \t\t %d\n",stats->total);
printf("total bytes \t\t %d\n",stats->total_bytes);
printf("Deleted messages \t\t %d\n",stats->deleted);
printf("Deleted bytes \t\t %d\n",stats->deleted_bytes);
printf("Remaining messages\t\t %d\n",stats->total - stats->deleted);
printf("Remaining bytes \t\t %d\n",stats->total_bytes - stats->deleted_bytes);
}
/* fatal needed for imap library */
void
fatal(const char *s, int code) {
fprintf(stderr, "ipurge: %s\n", s);
exit(code);
}

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