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/* $Id: match-attachment.c,v 1.27 2007/08/27 18:10:51 nicm Exp $ */
/*
* Copyright (c) 2006 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, 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 <sys/types.h>
#include <fnmatch.h>
#include "fdm.h"
#include "match.h"
int match_attachment_match(struct mail_ctx *, struct expritem *);
void match_attachment_desc(struct expritem *, char *, size_t);
struct match match_attachment = {
"attachment",
match_attachment_match,
match_attachment_desc
};
int
match_attachment_match(struct mail_ctx *mctx, struct expritem *ei)
{
struct match_attachment_data *data = ei->data;
struct account *a = mctx->account;
struct mail *m = mctx->mail;
struct attach *at;
size_t size;
u_int n;
char *value = NULL;
if (!m->attach_built) {
/* Fill attachments. */
m->attach = attach_build(m);
if (m->attach != NULL)
attach_log(m->attach, "%s: attachment", a->name);
else
log_debug3("%s: no attachments", a->name);
m->attach_built = 1;
}
if (data->op == ATTACHOP_COUNT || data->op == ATTACHOP_TOTALSIZE) {
size = 0;
n = 0;
at = m->attach;
while (at != NULL) {
size += at->size;
n++;
at = attach_visit(at, NULL);
}
switch (data->op) {
case ATTACHOP_COUNT:
switch (data->cmp) {
case CMP_EQ:
if (n == data->value.num)
return (MATCH_TRUE);
return (MATCH_FALSE);
case CMP_NE:
if (n != data->value.num)
return (MATCH_TRUE);
return (MATCH_FALSE);
case CMP_LT:
if (n < data->value.num)
return (MATCH_TRUE);
return (MATCH_FALSE);
case CMP_GT:
if (n > data->value.num)
return (MATCH_TRUE);
return (MATCH_FALSE);
default:
return (MATCH_ERROR);
}
case ATTACHOP_TOTALSIZE:
switch (data->cmp) {
case CMP_LT:
if (size < data->value.size)
return (MATCH_TRUE);
return (MATCH_FALSE);
case CMP_GT:
if (size > data->value.size)
return (MATCH_TRUE);
return (MATCH_FALSE);
default:
return (MATCH_ERROR);
}
default:
return (MATCH_ERROR);
}
}
/* If no attachments, none of the following conditions are true. */
if (m->attach == NULL)
return (MATCH_FALSE);
/* For any type or name matches, construct the value. */
if (data->op == ATTACHOP_ANYTYPE || data->op == ATTACHOP_ANYNAME)
value = replacestr(&data->value.str, m->tags, m, &m->rml);
at = m->attach;
while (at != NULL) {
switch (data->op) {
case ATTACHOP_ANYSIZE:
switch (data->cmp) {
case CMP_LT:
if (at->size < data->value.size)
return (MATCH_TRUE);
break;
case CMP_GT:
if (at->size > data->value.size)
return (MATCH_TRUE);
break;
default:
return (MATCH_ERROR);
}
break;
case ATTACHOP_ANYTYPE:
if (at->type == NULL)
break;
if (fnmatch(value, at->type, FNM_CASEFOLD) == 0) {
xfree(value);
return (MATCH_TRUE);
}
break;
case ATTACHOP_ANYNAME:
if (at->name == NULL)
break;
if (fnmatch(value, at->name, FNM_CASEFOLD) == 0) {
xfree(value);
return (MATCH_TRUE);
}
break;
default:
return (MATCH_ERROR);
}
at = attach_visit(at, NULL);
}
if (value != NULL)
xfree(value);
return (MATCH_FALSE);
}
void
match_attachment_desc(struct expritem *ei, char *buf, size_t len)
{
struct match_attachment_data *data = ei->data;
const char *cmp = "";
if (data->cmp == CMP_LT)
cmp = "<";
else if (data->cmp == CMP_GT)
cmp = ">";
else if (data->cmp == CMP_EQ)
cmp = "==";
else if (data->cmp == CMP_NE)
cmp = "!=";
switch (data->op) {
case ATTACHOP_COUNT:
xsnprintf(buf, len,
"attachment count %s %lld", cmp, data->value.num);
break;
case ATTACHOP_TOTALSIZE:
xsnprintf(buf, len,
"attachment total-size %s %lld", cmp, data->value.num);
break;
case ATTACHOP_ANYSIZE:
xsnprintf(buf, len,
"attachment any-size %s %lld", cmp, data->value.num);
break;
case ATTACHOP_ANYTYPE:
xsnprintf(buf, len,
"attachment any-type \"%s\"", data->value.str.str);
break;
case ATTACHOP_ANYNAME:
xsnprintf(buf, len,
"attachment any-name \"%s\"", data->value.str.str);
break;
default:
if (len > 0)
*buf = '\0';
break;
}
}
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