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/* $Id$ */
/*
* Copyright (c) 2006 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 <sys/wait.h>
#include <errno.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "fdm.h"
#include "deliver.h"
int deliver_rewrite_deliver(struct deliver_ctx *, struct actitem *);
void deliver_rewrite_desc(struct actitem *, char *, size_t);
struct deliver deliver_rewrite = {
"rewrite",
DELIVER_WRBACK,
deliver_rewrite_deliver,
deliver_rewrite_desc
};
int
deliver_rewrite_deliver(struct deliver_ctx *dctx, struct actitem *ti)
{
struct account *a = dctx->account;
struct mail *m = dctx->mail;
struct deliver_rewrite_data *data = ti->data;
struct mail *md = &dctx->wr_mail;
char *s, *cause, *out, *err;
int status;
struct cmd *cmd = NULL;
char *lbuf;
size_t llen;
s = replacepath(&data->cmd, m->tags, m, &m->rml, dctx->udata->home);
if (s == NULL || *s == '\0') {
log_warnx("%s: empty command", a->name);
goto error;
}
log_debug2("%s: rewriting using \"%s\"", a->name, s);
md->size = 0;
cmd = cmd_start(s, CMD_IN|CMD_OUT|CMD_ONCE, m->data, m->size, &cause);
if (cmd == NULL)
goto error_cause;
log_debug3("%s: %s: started", a->name, s);
llen = IO_LINESIZE;
lbuf = xmalloc(llen);
do {
status = cmd_poll(
cmd, &out, &err, &lbuf, &llen, conf.timeout, &cause);
if (status == -1) {
xfree(lbuf);
goto error_cause;
}
if (status != 0)
continue;
if (err != NULL)
log_warnx("%s: %s: %s", a->name, s, err);
if (out == NULL)
continue;
log_debug3("%s: %s: out: %s", a->name, s, out);
if (append_line(md, out, strlen(out)) != 0) {
log_warnx("%s: %s: failed to resize mail", s, a->name);
goto error;
}
if (md->size > conf.max_size) {
log_warnx("%s: %s: oversize mail returned", s, a->name);
goto error;
}
} while (status == 0);
status--;
xfree(lbuf);
if (status != 0) {
log_warnx("%s: %s: command returned %d", a->name, s, status);
goto error;
}
if (md->size == 0) {
log_warnx("%s: %s: empty mail returned", a->name, s);
goto error;
}
md->body = find_body(md);
cmd_free(cmd);
xfree(s);
return (DELIVER_SUCCESS);
error_cause:
log_warnx("%s: %s: %s", a->name, s, cause);
xfree(cause);
error:
if (cmd != NULL)
cmd_free(cmd);
if (s != NULL)
xfree(s);
return (DELIVER_FAILURE);
}
void
deliver_rewrite_desc(struct actitem *ti, char *buf, size_t len)
{
struct deliver_rewrite_data *data = ti->data;
xsnprintf(buf, len, "rewrite \"%s\"", data->cmd.str);
}
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