52 lines
1.5 KiB
Factor
52 lines
1.5 KiB
Factor
! Copyright (C) 2009 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors timers arrays calendar combinators
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combinators.smart continuations debugger http.client fry
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init io.streams.string kernel locals math math.parser db
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namespaces sequences site-watcher.db site-watcher.email ;
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IN: site-watcher
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SYMBOL: site-watcher-frequency
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5 minutes site-watcher-frequency set-global
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SYMBOL: running-site-watcher
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[ f running-site-watcher set-global ] "site-watcher" add-startup-hook
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<PRIVATE
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: check-sites ( seq -- )
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[
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[ dup url>> http-get 2drop site-good ] [ site-bad ] recover
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] each ;
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: site-up-email ( site -- body )
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last-up>> now swap time- duration>minutes 60 /mod
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[ >integer number>string ] bi@
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[ " hours, " append ] [ " minutes" append ] bi* append
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"Site was down for (at least): " prepend ;
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: site-down-email ( site -- body ) error>> ;
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: send-report ( site -- )
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[ ]
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[ dup up?>> [ site-up-email ] [ site-down-email ] if ]
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[ [ url>> ] [ up?>> "up" "down" ? ] bi " is " glue ] tri
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send-site-email ;
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: send-reports ( seq -- )
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[ [ send-report ] each ] unless-empty ;
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PRIVATE>
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: watch-sites ( -- )
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find-sites check-sites sites-to-report send-reports ;
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: run-site-watcher ( db -- )
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[ running-site-watcher get ] dip '[
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[ _ [ watch-sites ] with-db ] site-watcher-frequency get every
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running-site-watcher set
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] unless ;
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: stop-site-watcher ( -- )
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running-site-watcher get [ stop-timer ] when* ;
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