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[khome.git] / home / lib / login_functions.sh

diff --git a/home/lib/login_functions.sh b/home/lib/login_functions.sh
index a497cbc..68d99a2 100644 (file)
--- a/home/lib/login_functions.sh
+++ b/home/lib/login_functions.sh
@@ -341,16 +341,20 @@ weather() {
     curl "http://wttr.in/$_weather_location?format=v2"
 }
 
+_bt_devs_infos() {
+    # grep's defintion of a line does not include \r, wile awk's does and
+    # which bluetoothctl outputs
+    awk '/^Device +/ {print $2}' \
+    | xargs -I% sh -c 'echo info % | bluetoothctl' \
+    | awk '/^Device |^\t[A-Z][A-Za-z0-9]+: /'
+}
+
 bt_devs_paired() {
-    bluetoothctl -- paired-devices \
-    | awk '{print $2}' \
-    | xargs bluetoothctl -- info
+    echo 'paired-devices' | bluetoothctl | _bt_devs_infos
 }
 
 bt_devs() {
-    bluetoothctl -- devices \
-    | awk '{print $2}' \
-    | xargs bluetoothctl -- info
+    echo 'devices' | bluetoothctl | _bt_devs_infos
 }
 
 run() {
@@ -369,22 +373,31 @@ run() {
 }
 
 bar_gauge() {
-    local -r width="$1"
+    awk "$@" '
+        BEGIN {
+            ch_left  = ch_left  ? ch_left  : "["
+            ch_right = ch_right ? ch_right : "]"
+            ch_blank = ch_blank ? ch_blank : "-"
+            ch_used  = ch_used  ? ch_used  : "|"
+        }
 
-    awk -v width="$width" '
         {
             cur = $1
             max = $2
             lab = $3
 
-            u = num_scale(cur, max, 1, width)
+            cur_scaled = num_scale(cur, max, 1, width)
 
-            printf "%s%s[", lab, lab ? " " : ""
+            printf \
+                "%s%s%s", \
+                lab ? lab         " " : "", \
+                num ? cur "/" max " " : "", \
+                ch_left
             for (i=1; i<=width; i++) {
-                c = i <= u ? "|" : "-"
+                c = i <= cur_scaled ? ch_used : ch_blank
                 printf "%s", c
             }
-            printf "]\n"
+            printf "%s\n", ch_right
         }
 
         function num_scale(src_cur, src_max, dst_min, dst_max) {
@@ -438,7 +451,9 @@ motd() {
 
     echo
 
-    printf 'tmux sessions: %d\n' "$(tmux ls 2> /dev/null | wc -l)"
+    printf 'tmux: sessions %d, clients %d\n' \
+        "$(tmux list-sessions 2> /dev/null | wc -l)" \
+        "$(tmux list-clients  2> /dev/null | wc -l)"
 
     echo
 
@@ -448,14 +463,14 @@ motd() {
         df ~ | awk 'NR == 2 {print $3, $3 + $4, "disk"}'
         motd_batt
     ) \
-    | bar_gauge "$bar_width" \
+    | bar_gauge -v width="$bar_width" \
     | column -t \
     | indent "$indent_unit"
 
     echo
 
     echo 'Network'
-    echo "${indent_unit}interfaces:"
+    echo "${indent_unit}if"
     (ifconfig; iwconfig) 2> /dev/null \
     | awk '
         /^[^ ]/ {
@@ -499,12 +514,80 @@ motd() {
     | indent "${indent_unit}${indent_unit}"
 
     # WARN: ensure: $USER ALL=(ALL) NOPASSWD:/bin/netstat
-    echo "${indent_unit}TCP servers"
+
+    echo "${indent_unit}-->"
+
+    printf '%sUDP: ' "${indent_unit}${indent_unit}"
+    sudo -n netstat -ulnp \
+    | awk 'NR > 2 {print $6}' \
+    | awk -F/ '{print $2}' \
+    | sort -u \
+    | xargs \
+    | column -t
+
+    printf '%sTCP: ' "${indent_unit}${indent_unit}"
     sudo -n netstat -tlnp \
     | awk 'NR > 2 {print $7}' \
     | awk -F/ '{print $2}' \
     | sort -u \
     | xargs \
+    | column -t
+
+    echo "${indent_unit}<->"
+
+    printf '%sTCP: ' "${indent_unit}${indent_unit}"
+    sudo -n netstat -tnp \
+    | awk 'NR > 2 && $6 == "ESTABLISHED" {print $7}' \
+    | awk -F/ '{print $2}' \
+    | sort -u \
+    | xargs \
+    | column -t
+
+    echo
+
+    echo 'Loggers'
+    awk '
+        {
+            split($5, prog, "[")
+            sub(":$", "", prog[1]) # if there were no [], than : will is left behind
+            print prog[1]
+        }' /var/log/syslog \
+    | awk '
+        {
+            n = split($1, path, "/")  # prog may be in path form
+            prog = path[n]
+            total++
+            count[prog]++
+        }
+
+        END {
+            for (prog in count)
+                print count[prog], total, prog
+        }' \
+    | sort -n -k 1 -r \
+    | bar_gauge -v width=30 -v num=1 -v ch_left=' ' -v ch_right=' ' -v ch_blank=' ' \
     | column -t \
-    | indent "${indent_unit}${indent_unit}"
+    | indent "${indent_unit}"
+}
+
+ssh_invalid_attempts_from() {
+    awk '
+        /: Invalid user/ && $5 ~ /^sshd/ {
+            u=$8
+            addr=$10 == "port" ? $9 : $10
+            max++
+            curr[addr]++
+        }
+
+        END {
+            for (addr in curr)
+                if ((c = curr[addr]) > 1)
+                    print c, max, addr
+        }
+        ' \
+        /var/log/auth.log \
+        /var/log/auth.log.1 \
+    | sort -n -k 1 \
+    | bar_gauge -v width=$(stty size | awk '{print $2}') -v num=1 -v ch_right=' ' -v ch_left=' ' -v ch_blank=' ' \
+    | column -t
 }