210 lines
10 KiB
Bash
Executable File
210 lines
10 KiB
Bash
Executable File
#!/usr/bin/env bash
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# This script is used to resolve various flags that appear on "show sess all".
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# All identified ones will be appended at the end, with a short name and their
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# value, followed by either the value resolved by "flags" when it's found, or
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# by the copy-pastable command to use to resolve them. The path to FLAGS is
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# searched in this order: 1) $FLAGS, 2) in the path, 3) dev/flags/flags, 4)
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# in the same directory as the script.
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#
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# This script is horrendous, but it's not a reason for making it even more
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# disgusting. The big regex flag mapping mess at the end is readable on a
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# large screen and it's easier to spot mistakes using this aligned format,
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# so please preserve this as much as possible and avoid multi-line formats.
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#
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# The append_* functions provide different variants that are still commented
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# out. It's mostly a matter of taste, they're equivalent.
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#
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# Usage: socat /path/to/socket - <<< "show sess all" | ./$0 > output
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#
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# options:
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# --color=never, --no-color: never colorize output
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# --color=always: always colorize output (default: only on terminal)
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# look for "flags in path then in dev/flags/flags then next to the script"
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FLAGS="${FLAGS:-$(command -v flags)}"
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if [ -z "$FLAGS" ]; then
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if [ -e dev/flags/flags ]; then
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FLAGS=dev/flags/flags;
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elif [ -e "${0%/*}/flags" ]; then
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FLAGS="${0%/*}/flags"
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else
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# OK still not found,let's write a copy-pastable command
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FLAGS="echo ./flags"
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fi
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fi
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HTTP_METH=( "OPTIONS" "GET" "HEAD" "POST" "PUT" "DELETE" "TRACE" "CONNECT" "OTHER" )
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out=( )
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decode=( )
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# returns str $2 and $3 concatenated with enough spaces in between so that the
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# total size doesn't exceed $1 chars, but always inserts at least one space.
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justify() {
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local pad=" "
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local str
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while str="${2}${pad}${3}" && [ ${#str} -le $1 ]; do
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pad="${pad} "
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done
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echo -n "$str"
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}
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# remove spaces at the beginning and end in "$1"
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trim() {
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while [ -n "$1" -a -z "${1## *}" ]; do
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set -- "${1# }"
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done
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while [ -n "$1" -a -z "${1%%* }" ]; do
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set -- "${1% }"
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done
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echo -n "$1"
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}
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# pass $1=ctx name, $2=argname, $3=value, append the decoded line to decode[]
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append_flag() {
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set -- "$1" "$2" "$(printf "%#x" $3)"
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#decode[${#decode[@]}]="$1=$3 [ $(set -- $($FLAGS $2 $3 | cut -f2- -d=); echo $*) ]"
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#decode[${#decode[@]}]="$(printf "%-14s %10s %s" $1 $3 "$(set -- $($FLAGS $2 $3 | cut -f2- -d=); echo $*)")"
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#decode[${#decode[@]}]="$(justify 22 "$1" "$3") $(set -- $($FLAGS $2 $3 | cut -f2- -d=); echo $*)"
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decode[${#decode[@]}]="$(justify 22 "$1" "$3") $(set -- $($FLAGS $2 $3 | cut -f2- -d= | tr -d '|'); echo "$*")"
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#decode[${#decode[@]}]="$(justify 22 "$1" "$3") $(set -- $($FLAGS $2 $(printf "%#x" $3) | cut -f2- -d= | tr -d '|'); echo "$*")"
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#decode[${#decode[@]}]="$(justify 22 "$1" "$3") $(trim "$($FLAGS $2 $3 | cut -f2- -d= | tr -d '|')")"
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#decode[${#decode[@]}]="$(justify 22 "$1" "$3") $(trim "$($FLAGS $2 $3 | cut -f2- -d= | tr -d ' ')")"
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}
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# pass $1=ctx name, $2=value, $3=decoded value
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append_str() {
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#decode[${#decode[@]}]="$1=$2 [ $3 ]"
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#decode[${#decode[@]}]="$(printf "%-14s %10s %s" $1 $2 $3)"
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decode[${#decode[@]}]="$(justify 22 "$1" "$2") $(trim $3)"
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}
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# dump and reset the buffers
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dump_and_reset() {
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local line
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line=0
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while [ $line -lt ${#out[@]} ]; do
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if [ -n "$COLOR" ]; then
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# highlight name=value for values made of upper case letters
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echo "${out[$line]}" | \
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sed -e 's,\(^0x.*\),\x1b[1;37m\1\x1b[0m,g' \
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-e 's,\([^ ,=]*\)=\([A-Z][^:, ]*\),\x1b[1;36m\1\x1b[0m=\x1b[1;33m\2\x1b[0m,g'
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else
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echo "${out[$line]}"
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fi
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((line++))
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done
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[ ${#decode[@]} -eq 0 ] || echo " -----------------------------------"
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line=0
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while [ $line -lt ${#decode[@]} ]; do
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echo " ${decode[$line]}"
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((line++, total++))
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done
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[ ${#decode[@]} -eq 0 ] || echo " -----------------------------------"
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decode=( )
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out=( )
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}
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### main entry point
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if [ -t 1 ]; then
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# terminal on stdout, enable color by default
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COLOR=1
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else
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COLOR=
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fi
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if [ "$1" == "--no-color" -o "$1" == "--color=never" ]; then
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shift
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COLOR=
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elif [ "$1" == "--color=always" ]; then
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shift
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COLOR=1
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fi
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ctx=strm
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while read -r; do
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[ "$REPLY" != "EOF" ] || break # for debugging
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if [[ "$REPLY" =~ ^[[:blank:]]*task= ]]; then
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ctx=task;
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elif [[ "$REPLY" =~ ^[[:blank:]]*txn= ]]; then
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ctx=txn;
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elif [[ "$REPLY" =~ ^[[:blank:]]*scf= ]]; then
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ctx=scf;
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elif [[ "$REPLY" =~ ^[[:blank:]]*co0= ]]; then
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ctx=cof;
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elif [[ "$REPLY" =~ ^[[:blank:]]*app0= ]]; then
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ctx=appf;
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elif [[ "$REPLY" =~ ^[[:blank:]]*req= ]]; then
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ctx=req;
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elif [[ "$REPLY" =~ ^[[:blank:]]*scb= ]]; then
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ctx=scb;
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elif [[ "$REPLY" =~ ^[[:blank:]]*co1= ]]; then
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ctx=cob;
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elif [[ "$REPLY" =~ ^[[:blank:]]*app1= ]]; then
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ctx=appb;
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elif [[ "$REPLY" =~ ^[[:blank:]]*res= ]]; then
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ctx=res;
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elif [[ "$REPLY" =~ ^0x ]]; then
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# here we dump what we have and we reset
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dump_and_reset
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ctx=strm;
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fi
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if [ $ctx = strm ]; then
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag strm.flg strm "${BASH_REMATCH[1]}"
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elif [ $ctx = task ]; then
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! [[ "$REPLY" =~ \(state=([0-9a-fx]*) ]] || append_flag task.state task "${BASH_REMATCH[1]}"
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elif [ $ctx = txn ]; then
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! [[ "$REPLY" =~ [[:blank:]]meth=([^[:blank:]]*) ]] || append_str txn.meth "${BASH_REMATCH[1]}" "${HTTP_METH[$((${BASH_REMATCH[1]}))]}"
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag txn.flg txn "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]req\.f=([0-9a-fx]*) ]] || append_flag txn.req.flg hmsg "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]rsp\.f=([0-9a-fx]*) ]] || append_flag txn.rsp.flg hmsg "${BASH_REMATCH[1]}"
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elif [ $ctx = scf ]; then
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag f.sc.flg sc "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]endp=[[:alnum:]]*,[[:alnum:]]*,([0-9a-fx]*) ]] || append_flag f.sc.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1s.*\.sd\.flg=([0-9a-fx]*) ]] || append_flag f.h1s.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1s\.flg=([0-9a-fx]*) ]] || append_flag f.h1s.flg h1s "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1c\.flg=([0-9a-fx]*) ]] || append_flag f.h1c.flg h1c "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ ^[[:blank:]]*\.sc=.*\.flg=.*\.app=.*\.sd=[^=]*\.flg=([0-9a-fx]*) ]] || append_flag f.h2s.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h2s.*\.flg=([0-9a-fx]*) ]] || append_flag f.h2s.flg h2s "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h2c.*\.flg=([0-9a-fx]*) ]] || append_flag f.h2c.flg h2c "${BASH_REMATCH[1]}"
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elif [ $ctx = cof ]; then
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag f.co.flg conn "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]fd.state=([0-9a-fx]*) ]] || append_flag f.co.fd.st fd 0x"${BASH_REMATCH[1]#0x}"
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elif [ $ctx = req ]; then
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! [[ "$REPLY" =~ [[:blank:]]\(f=([0-9a-fx]*) ]] || append_flag req.flg chn "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]an=([0-9a-fx]*) ]] || append_flag req.ana ana "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]htx.*flags=([0-9a-fx]*) ]] || append_flag req.htx.flg htx "${BASH_REMATCH[1]}"
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elif [ $ctx = scb ]; then
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag b.sc.flg sc "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]endp=[[:alnum:]]*,[[:alnum:]]*,([0-9a-fx]*) ]] || append_flag b.sc.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1s.*\.sd\.flg=([0-9a-fx]*) ]] || append_flag b.h1s.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1s\.flg=([0-9a-fx]*) ]] || append_flag b.h1s.flg h1s "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h1c\.flg=([0-9a-fx]*) ]] || append_flag b.h1c.flg h1c "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ ^[[:blank:]]*\.sc=.*\.flg=.*\.app=.*\.sd=[^=]*\.flg=([0-9a-fx]*) ]] || append_flag b.h2s.sd.flg sd "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h2s.*\.flg=([0-9a-fx]*) ]] || append_flag b.h2s.flg h2s "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]h2c.*\.flg=([0-9a-fx]*) ]] || append_flag b.h2c.flg h2c "${BASH_REMATCH[1]}"
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elif [ $ctx = cob ]; then
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! [[ "$REPLY" =~ [[:blank:]]flags=([0-9a-fx]*) ]] || append_flag b.co.flg conn "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]fd.state=([0-9a-fx]*) ]] || append_flag b.co.fd.st fd "${BASH_REMATCH[1]}"
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elif [ $ctx = res ]; then
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! [[ "$REPLY" =~ [[:blank:]]\(f=([0-9a-fx]*) ]] || append_flag res.flg chn "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]an=([0-9a-fx]*) ]] || append_flag res.ana ana "${BASH_REMATCH[1]}"
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! [[ "$REPLY" =~ [[:blank:]]htx.*flags=([0-9a-fx]*) ]] || append_flag res.htx.flg htx "${BASH_REMATCH[1]}"
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fi
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out[${#out[@]}]="$REPLY"
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done
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# dump the last stream
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dump_and_reset
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