On Wed, Jun 25, 2008 at 7:44 PM, Allan Spencer <user-42a3456c44ef@xymon.invalid> wrote:
HI all
A LONG time ago I asked about ack'ing an alert via email (or via
sms-to-email) and to be able to do so without a subject. A patch was written
at the time and it was included into the main codebase but unfortunately I
did not get a chance to imeplement what I wanted to and never ended up
testing it. Thats has just changed recently and now I am having issues
acking an alert via text in the body.
If i reply to an email and maintain the subject it works fine, if I try cut
the subject and paste it as the body nothing happens. I havent gone as far
as testing it via the sms-to-email app yet as I cant get it working from a
normal email.
The hobbit-mailack.c program loops through the incoming email, looking for
interesting stuff. Here's where it finds the subject line:
else if (strncasecmp(STRBUF(inbuf), "subject:", 8) == 0)
subjectline = strdup(skipwhitespace(STRBUF(inbuf)+8));
Once the headers are done with, it goes on to look for some things in the
email body, such as "delay=" and "ack=":
else if ((strncasecmp(STRBUF(inbuf), "ack=", 4) == 0) ||
(strncasecmp(STRBUF(inbuf), "ack ", 4) == 0)) {
/* Some systems cannot generate a subject.
Allow them to ack
* via text in the message body. */
subjectline = (char *)malloc(1024);
snprintf(subjectline, 1023, "Subject: Hobbit
[%s]", STRBUF(inbuf)+4);
}
So, does the email body contain a line that starts with "ack=NNNNNN" or "ack
NNNNN"?? If not, it won't match the above code fragment. It looks like it
should be *just* the number, as that gets filled in between the square
brackets in the faked subject line.
I noticed something else interesting in the code. The last thing it does is
call sendmessage, handing it a buffer loaded like this:
p += sprintf(p, "hobbitdack %s %d %s", cookie, duration, firsttxtline);
if (fromline) {
p += sprintf(p, "\nAcked by: %s", fromline);
}
I figured it wouldn't hurt to try doing this:
server/bin/bb localhost "hobbitdack NNNNNN 60 this thing is broken
Acked by: user-d8507e18a65a@xymon.invalid"
where NNNNNN came from a real, current warning message. Note the placement
of the double-quotes - there needs to be a newline between the message and
"Acked by". And now, just below the "Status unchanged in...." message at
the bottom of the page I find this:
Current acknowledgment: this thing is broken
Acked by: user-d8507e18a65a@xymon.invalid
Next update at: 12:54 2008-07-09
and there's a nice yellow check mark on the all-non-green page. So it looks
like an ACK *can* be sent via the command line...
Ralph