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View File Name : postfix.py

import agent_util

class PostfixPlugin(agent_util.Plugin):
    textkey = "postfix"
    label = "Postfix"

    @classmethod
    def get_metadata(self, config):
        status = agent_util.SUPPORTED
        msg = None

        # check if mailq is even installed
        installed = agent_util.which("mailq")
        if not installed:
            self.log.info("mailq binaries not found")
            status = agent_util.UNSUPPORTED
            msg = "mailq not found"
            return {}

        if status is agent_util.SUPPORTED:
            try:
                ret, output = agent_util.execute_command("mailq")
                if ret != 0: raise Exception
            except:
                self.log.error("couldn't get postfix status")
                status = agent_util.MISCONFIGURED
                msg = "Couldn't get postfix status, make sure mail system is running "  
                return {}      


        data = {
            "postfix.queue_size": {
                "label": "Postfix queue size",
                "options": None,
                "status": status,
                "error_message": msg,
                "unit": "kB"
            },
            "postfix.requests": {
                "label": "Number of requests",
                "options": None,
                "status": status,
                "error_message": msg,
                "unit": "requsts"
            },
        }

        return data


    def check(self, textkey, data, config):
        try:
            res = 0
            ret, output = agent_util.execute_command("mailq | tail -n 1")
            self.log.debug("mailq | tail -n 1: %s" % str(output))

            if ret == 0:
                output = output.strip().replace("--", "").replace(".","")
                if textkey == "postfix.queue_size":
                    res = output.split("Kbytes")[0]
                else:
                    res = output.split("in")[-1].split("Request")[0]
            res = int(res)
        except:
            res = 0

        return res