#!/bin/sh
-squid_host="127.0.0.1"
-squid_port="3128"
-squid_update_every=5
+squid_host=
+squid_port=
+squid_url=
+squid_timeout=2
+squid_update_every=2
+squid_priority=60000
+
+squid_get_stats_internal() {
+ local host="$1" port="$2" url="$3"
+ squidclient -h $host -p $port $url
+}
squid_get_stats() {
-nc $squid_host $squid_port <<EOF
-GET cache_object://$squid_host:$squid_port/counters HTTP/1.0
+ squid_get_stats_internal "$squid_host" "$squid_port" "$squid_url"
+}
-EOF
+squid_autodetect() {
+ local host="127.0.0.1" port url x
+
+ for port in 3128 8080
+ do
+ for url in "cache_object://$host:$port/counters" "/squid-internal-mgr/counters"
+ do
+ x=$(squid_get_stats_internal "$host" "$port" "$url" | grep client_http.requests)
+ if [ ! -z "$x" ]
+ then
+ squid_host="$host"
+ squid_port="$port"
+ squid_url="$url"
+ echo >&2 "squid: found squid at '$host:$port' with url '$url'"
+ return 0
+ fi
+ done
+ done
+
+ echo >&2 "squid: cannot find squid running in localhost. Please set squid_url='url' and squid_host='IP' and squid_port='PORT' in $confd/squid.conf"
+ return 1
}
squid_check() {
+ require_cmd squidclient || return 1
+ require_cmd sed || return 1
+ require_cmd egrep || return 1
+
+ if [ -z "$squid_host" -o -z "$squid_port" -o -z "$squid_url" ]
+ then
+ squid_autodetect || return 1
+ fi
+
# check once if the url works
- local x=`squid_get_stats | grep client_http.requests`
+ local x="$(squid_get_stats | grep client_http.requests)"
if [ ! $? -eq 0 -o -z "$x" ]
then
- echo >&2 "squid: cannot fetch the counters from $squid_host:$squid_port. Please set squid_host='host' and squid_port='port' in $confd/squid.conf"
+ echo >&2 "squid: cannot fetch URL '$squid_url' by connecting to $squid_host:$squid_port. Please set squid_url='url' and squid_host='host' and squid_port='port' in $confd/squid.conf"
return 1
fi
squid_create() {
# create the charts
cat <<EOF
-CHART squid.clients_net '' "Squid Client Bandwidth" "kilobits / $squid_update_every sec" squid '' area 20001 $squid_update_every
-DIMENSION client_http_kbytes_in in incremental 8 $((1 * squid_update_every))
-DIMENSION client_http_kbytes_out out incremental -8 $((1 * squid_update_every))
-DIMENSION client_http_hit_kbytes_out hits incremental -8 $((1 * squid_update_every))
-
-CHART squid.clients_requests '' "Squid Client Requests" "requests / $squid_update_every sec" squid '' line 20003 $squid_update_every
-DIMENSION client_http_requests requests incremental 1 $((1 * squid_update_every))
-DIMENSION client_http_hits hits incremental 1 $((1 * squid_update_every))
-DIMENSION client_http_errors errors incremental -1 $((1 * squid_update_every))
-
-CHART squid.servers_net '' "Squid Server Bandwidth" "kilobits / $squid_update_every sec" squid '' area 20002 $squid_update_every
-DIMENSION server_all_kbytes_in in incremental 8 $((1 * squid_update_every))
-DIMENSION server_all_kbytes_out out incremental -8 $((1 * squid_update_every))
-
-CHART squid.servers_requests '' "Squid Server Requests" "requests / $squid_update_every sec" squid '' line 20004 $squid_update_every
-DIMENSION server_all_requests requests incremental 1 $((1 * squid_update_every))
-DIMENSION server_all_errors errors incremental -1 $((1 * squid_update_every))
+CHART squid.clients_net '' "Squid Client Bandwidth" "kilobits / sec" clients squid.clients.net area $((squid_priority + 1)) $squid_update_every
+DIMENSION client_http_kbytes_in in incremental 8 1
+DIMENSION client_http_kbytes_out out incremental -8 1
+DIMENSION client_http_hit_kbytes_out hits incremental -8 1
+
+CHART squid.clients_requests '' "Squid Client Requests" "requests / sec" clients squid.clients.requests line $((squid_priority + 3)) $squid_update_every
+DIMENSION client_http_requests requests incremental 1 1
+DIMENSION client_http_hits hits incremental 1 1
+DIMENSION client_http_errors errors incremental -1 1
+
+CHART squid.servers_net '' "Squid Server Bandwidth" "kilobits / sec" servers squid.servers.net area $((squid_priority + 2)) $squid_update_every
+DIMENSION server_all_kbytes_in in incremental 8 1
+DIMENSION server_all_kbytes_out out incremental -8 1
+
+CHART squid.servers_requests '' "Squid Server Requests" "requests / sec" servers squid.servers.requests line $((squid_priority + 4)) $squid_update_every
+DIMENSION server_all_requests requests incremental 1 1
+DIMENSION server_all_errors errors incremental -1 1
EOF
-
+
return 0
}
# for each dimension
# remember: KEEP IT SIMPLE AND SHORT
- # 1. wget the counters page from squid
+ # 1. get the counters page from squid
# 2. sed to remove spaces; replace . with _; remove spaces around =; prepend each line with: local squid_
# 3. egrep lines starting with:
# local squid_client_http_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
# prepare the script and always grep at the end the lines that are usefull, so that
# even if something goes wrong, no other code can be executed
- eval "`squid_get_stats |\
+ eval "$(squid_get_stats |\
sed -e "s/ \+/ /g" -e "s/\./_/g" -e "s/^\([a-z0-9_]\+\) *= *\([0-9]\+\)$/local squid_\1=\2/g" |\
- egrep "^local squid_(client_http|server_all)_[a-z0-9_]+=[0-9]+$"`"
+ egrep "^local squid_(client_http|server_all)_[a-z0-9_]+=[0-9]+$")"
# write the result of the work.
cat <<VALUESEOF
return 0
}
-
projects / netdata.git / blobdiff