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    Online / Offline Status Notification System via push

    Scheduled Pinned Locked Moved Development
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    • A
      alexus
      last edited by

      Ok, good part of Webinterface is done now.
      One problem, I was trying to use fetch instead of wget (as sudgested earlier) but a) I cant make it to work b) it doesnt work as spider

      So, is it posible to install WGET to the system and include it in the distribution?

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      • S
        sullrich
        last edited by

        What doesn't work with fetch?

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        • A
          alexus
          last edited by

          everithing, I tryed all posible syntax and never got it to work …

          Can you give me a sample code on using fatch to open lets say http://example.com and do not download any info?

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          • S
            sullrich
            last edited by

            What do you mean "do not download any info?"

            Do you mean quiet?

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            • A
              alexus
              last edited by

              Spider mode = no downloads
              quite mode = no output

              Technicaly i need them both

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              • S
                sullrich
                last edited by

                Quiet and no downloads?  Sorry but I dont follow you.  The point of fetch and wget is to download/fetch a page.

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                • A
                  alexus
                  last edited by

                  who cares about original point :-P
                  i used wget yo open the remote webpage and transfer variables to remote server via HTTP POST -this is called -spider in wget

                  wger –spider -q "http://ecample.com?cmd=Hello2%World"

                  This will send Hello World to remote webserver. and at the same time will not download or save anything. Well some times i can run as spider but not in quite mode so i can see if the requested page returns me an error. This technique is used by google and paypal

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                  • S
                    sullrich
                    last edited by

                    fetch -o - "http://blah.url.com/test.php?testing=test&propermodulation=true" >/dev/null

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                    • A
                      alexus
                      last edited by

                      Ok good seams to work :-) Tnx
                      Now I have to join the GUI with the script and set DNS and i'm done on the client side  ;D

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                      • A
                        alexus
                        last edited by

                        I jaws was trying to use my GUI to modify crontabfile but no luck… i went to actual file and found out this message:

                        DO NOT EDIT THIS FILE - edit the master and reinstall.

                        (/tmp/crontab.lfJ3UAOksN installed on Thu Nov  9 04:03:50 2006)

                        (Cron version – $FreeBSD: src/usr.sbin/cron/crontab/crontab.c,v 1.22 2004/09/14 19:01:19 dds Exp $)

                        */60 * * * * sh /usr/local/StatusNotifier/server_status.sh >/dev/null 2>&1

                        The cron that is there is the one that i installed but I want to let my GUI to be able to edit cron job, but as file says I cant edit it?  :o as i would normally do under linux. So how can I edit cron file with out reinstalling it? I dont think I can reinstalll it via script, one way or another its alternating and saving  the file content.

                        Well maybe i missing something? Any ideas?

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                        • S
                          sullrich
                          last edited by

                          Edit /etc/crontab

                          killall -HUP cron

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                          • A
                            alexus
                            last edited by

                            ok Clinent Side is 98% Done, Server side is 30% Done

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                            • S
                              sullrich
                              last edited by

                              I still have no idea what your working on but good luck. ;)

                              One bit about that fetch command… Do check the shell return code.  fetch will fail if a problem occurred.

                              I apologize if you are already doing so.

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                              • A
                                alexus
                                last edited by

                                " fetch will fail if a problem occurred" - do you mean problem w/ connection or remote server? If so well i'll live w/ it for now… I alredu had enough headach transforming script from Linux to BSD, and then making GUI working the way it should.

                                As to what im doing is something like SNMP but in reverse... im my case router send its status to the server. If router doesnt send its status server marks device as of line and notifies device owner about the failute. Also owner can look up curent WAN Ip and other config in central location on the web...

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                                • S
                                  sullrich
                                  last edited by

                                  It is the shell return code.  What if the remote server is off line?  You are assuming the update went through ok?

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                                  • A
                                    alexus
                                    last edited by

                                    Well if remote server is ofline then it a problem at this moment. In future if ppl will be using the feasture I add backup server support, and buffer, to store data untill we got connection

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                                    • A
                                      alexus
                                      last edited by

                                      do you mean like fetch {print $0}? or something else?
                                      Im not too good in linux/bsd scripting

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                                      • S
                                        sullrich
                                        last edited by

                                        Simply test $? after the fetch command.

                                        fetch -o -o "http://pfsense.com/fake.txt" >/dev/null
                                        if [ $? != 0 ]; then
                                                # command failed!
                                                echo "pfsense fake: Nope, didnt work"
                                        fi

                                        fetch -o -o "http://www.pfsense.com" >/dev/null
                                        if [ $? != 0 ]; then
                                                # command failed!
                                                echo "pfsense failed"
                                        else
                                                echo "pfsense worked"
                                        fi

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                                        • A
                                          alexus
                                          last edited by

                                          Ok I can add that but, what will it give me? Server stil doesnt gets the report, well i can set another cron to exevute in say 10 min or something, or I dono yet…

                                          my brain is fried today

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                                          • S
                                            sullrich
                                            last edited by

                                            As long as there are no negative issues if the commands fail then don't worry about it.  I don't know your source code so I am just preaching best practices at this point.

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