10 squid_get_stats_internal() {
11 local host="$1" port="$2" url="$3"
13 nc -w $squid_timeout $host $port <<EOF
17 User-Agent: netdata (charts.d/squid.chart.sh)
23 squid_get_stats_internal "$squid_host" "$squid_port" "$squid_url"
27 local host="127.0.0.1" port url x
31 for url in "cache_object://$host:$port/counters" "/squid-internal-mgr/counters"
33 x=$(squid_get_stats_internal "$host" "$port" "$url" | grep client_http.requests)
39 echo >&2 "squid: found squid at '$host:$port' with url '$url'"
45 echo >&2 "squid: cannot find squid running in localhost. Please set squid_url='url' and squid_host='IP' and squid_port='PORT' in $confd/squid.conf"
50 require_cmd nc || return 1
51 require_cmd sed || return 1
52 require_cmd egrep || return 1
54 if [ -z "$squid_host" -o -z "$squid_port" -o -z "$squid_url" ]
56 squid_autodetect || return 1
59 # check once if the url works
60 local x="$(squid_get_stats | grep client_http.requests)"
61 if [ ! $? -eq 0 -o -z "$x" ]
63 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"
73 CHART squid.clients_net '' "Squid Client Bandwidth" "kilobits / sec" clients squid.clients.net area $[squid_priority + 1] $squid_update_every
74 DIMENSION client_http_kbytes_in in incremental 8 1
75 DIMENSION client_http_kbytes_out out incremental -8 1
76 DIMENSION client_http_hit_kbytes_out hits incremental -8 1
78 CHART squid.clients_requests '' "Squid Client Requests" "requests / sec" clients squid.clients.requests line $[squid_priority + 3] $squid_update_every
79 DIMENSION client_http_requests requests incremental 1 1
80 DIMENSION client_http_hits hits incremental 1 1
81 DIMENSION client_http_errors errors incremental -1 1
83 CHART squid.servers_net '' "Squid Server Bandwidth" "kilobits / sec" servers squid.servers.net area $[squid_priority + 2] $squid_update_every
84 DIMENSION server_all_kbytes_in in incremental 8 1
85 DIMENSION server_all_kbytes_out out incremental -8 1
87 CHART squid.servers_requests '' "Squid Server Requests" "requests / sec" servers squid.servers.requests line $[squid_priority + 4] $squid_update_every
88 DIMENSION server_all_requests requests incremental 1 1
89 DIMENSION server_all_errors errors incremental -1 1
97 # the first argument to this function is the microseconds since last update
98 # pass this parameter to the BEGIN statement (see bellow).
100 # do all the work to collect / calculate the values
102 # remember: KEEP IT SIMPLE AND SHORT
104 # 1. get the counters page from squid
105 # 2. sed to remove spaces; replace . with _; remove spaces around =; prepend each line with: local squid_
106 # 3. egrep lines starting with:
107 # local squid_client_http_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
108 # local squid_server_all_ then one or more of these a-z 0-9 _ then = and one of more of 0-9
109 # 4. then execute this as a script with the eval
111 # be very carefull with eval:
112 # prepare the script and always grep at the end the lines that are usefull, so that
113 # even if something goes wrong, no other code can be executed
115 eval "$(squid_get_stats |\
116 sed -e "s/ \+/ /g" -e "s/\./_/g" -e "s/^\([a-z0-9_]\+\) *= *\([0-9]\+\)$/local squid_\1=\2/g" |\
117 egrep "^local squid_(client_http|server_all)_[a-z0-9_]+=[0-9]+$")"
119 # write the result of the work.
121 BEGIN squid.clients_net $1
122 SET client_http_kbytes_in = $squid_client_http_kbytes_in
123 SET client_http_kbytes_out = $squid_client_http_kbytes_out
124 SET client_http_hit_kbytes_out = $squid_client_http_hit_kbytes_out
127 BEGIN squid.clients_requests $1
128 SET client_http_requests = $squid_client_http_requests
129 SET client_http_hits = $squid_client_http_hits
130 SET client_http_errors = $squid_client_http_errors
133 BEGIN squid.servers_net $1
134 SET server_all_kbytes_in = $squid_server_all_kbytes_in
135 SET server_all_kbytes_out = $squid_server_all_kbytes_out
138 BEGIN squid.servers_requests $1
139 SET server_all_requests = $squid_server_all_requests
140 SET server_all_errors = $squid_server_all_errors