add poc for db detection

detector.sh

+#!/bin/bash
+# ====================================================================
+#
+#   P O C   *    Detect a database type
+#
+# --------------------------------------------------------------------
+# ah: <www.axel-hahn.de>
+# 2024-02-xx  v0.1  ah   Initial version
+# --------------------------------------------------------------------
+
+cd $( dirname $0 )
+
+. jobhelper.sh || exit 1
+. vendor/ini.class.sh || exit 1
+
+DBD_BASEDIR=plugins/localdump/profiles/
+declare -A DBD_PARAMS
+DBD_DEBUG=0
+
+# --------------------------------------------------------------------
+#
+# --------------------------------------------------------------------
+
+# ---------- GETTER
+
+function dbdetect._wd(){
+    test "$DBD_DEBUG" -eq "1" && echo "DEBUG: $*"
+}
+
+function dbdetect.getConfigs(){
+    find ${DBD_BASEDIR} -type f -name "*.ini"
+}
+
+function dbdetect.getType(){
+    basename "$1" | cut -d "_" -f 1 | sed "s,\.ini$,,"
+}
+function dbdetect.getProfile(){
+    basename "$1" | cut -d "_" -f 1- | sed "s,\.ini$,,"
+}
+
+
+function dbdetect.exists(){
+    local _config="$1"
+
+    DBD_PARAMS=
+
+    local _found=0
+
+    # set file and inisection we read values from
+    ini.set "$_config" "detect"
+    
+    # --- check tcp
+    local tcpport; tcpport=$( ini.value "tcp" )    
+    local tcptarget; tcptarget=$( ini.value "tcp-target" )    
+    if { ! >/dev/tcp/$tcptarget/$tcpport; } > /dev/null 2>&1; then
+        # echo "No port tcp $tcpport available"
+        dbdetect._wd "... No port tcp $tcpport available on $tcptarget"
+        return 1
+    fi
+    dbdetect._wd "... Found tcp $tcpport on $tcptarget."
+
+    # --- check tcp process
+    local tcpprocess; tcpprocess=$( ini.value "tcp-process" )
+    if [ -n "$tcpprocess" ]; then
+        if ! netstat -tulpen 2>/dev/null | grep "^tcp.*:${tcpport} .*/${tcpprocess}" >/dev/null; then
+            # echo "No port tcp $tcpport available"
+            dbdetect._wd "... $tcpprocess not found for tcp ${tcpport}"
+            return 1
+        fi
+        dbdetect._wd "... tcp $tcpport is used by $tcpprocess."
+    fi
+
+    # --- check binaries
+    local binary; binary=$( ini.value "binary" )
+    if [ -n "${binary}" ]; then
+        for mybinary in $( echo "${binary}" | tr "," " " ); do
+            if ! j_requireBinary "$mybinary" 1 >/dev/null 2>&1; then
+                dbdetect._wd "... Missing binary: ${mybinary}"
+                return 1
+            fi
+            dbdetect._wd "... Binary: ${mybinary} was found"
+        done
+    fi
+
+    # --- check process
+    local process; process=$( ini.value "process" )
+    if [ -n "${process}" ]; then
+        if ! j_requireProcess "${process}" 1 >/dev/null; then
+            dbdetect._wd "... Missing process: ${process}"
+            return 1
+        fi
+        # if ! ps -eo command | grep -E "${process}" >/dev/null 2>&1; then
+        #     dbdetect._wd "... Process ${process} was not found"
+        #     return 1
+        # fi
+        dbdetect._wd "... Process ${process} was found"
+    fi
+
+    ini.set "$config" "set"
+    local value
+    local dbuser=$( ini.value "dbuser" )
+    local dbpassword=$( ini.value "dbpassword" )
+
+    for mykey in $( ini.keys )
+    do
+        # params = '--port={{tcp}} --password={{dbpassword}} --user={{dbuser}} --host={{tcp-target}}'
+        value="$( ini.value "$mykey" )"
+        value="${value//\{\{tcp\}\}/$tcpport}"
+        value="${value//\{\{tcp-target\}\}/$tcptarget}"
+        value="${value//\{\{dbuser\}\}/$dbuser}"
+        value="${value//\{\{dbpassword\}\}/$dbpassword}"
+        DBD_PARAMS[$mykey]="$value"
+    done
+
+    return 0
+}
+
+
+function dbdetect.getParams(){
+    echo "${DBD_PARAMS['params']}"
+}
+
+function dbdetect.runas(){
+    echo "${DBD_PARAMS['su']}"
+}
+
+# ----------------------------------------------------------------------
+# MAIN
+# ----------------------------------------------------------------------
+
+echo
+echo " --==##|  POC * DATABASE DETECTOR  |##==-- "
+echo
+
+dbdetect._wd
+dbdetect._wd "------"
+
+dbdetect._wd ">>>>>>>>>> $module"
+for config in $(dbdetect.getConfigs); do
+    dbdetect._wd "----- $config"
+    if dbdetect.exists $config; then
+        echo "FOUND: $config"
+
+        echo "  Type       : $( dbdetect.getType    $config )"
+        echo "  Target dir : $( dbdetect.getProfile $config )"
+        echo "  runas      : $( dbdetect.runas )"
+        echo "  Params     : $( dbdetect.getParams )"
+        echo
+    else
+        echo "SKIP : $config" 
+    fi
+    dbdetect._wd
+done
+echo
+
+# --------------------------------------------------------------------

plugins/localdump/profiles/mysql.ini

+# ----------------------------------------------------------------------
+# what to detect
+# ----------------------------------------------------------------------
+
+[detect]
+# binaries that must befound, comma seperated
+binary = 'mysql,mysqldump'
+
+# a running process that must be found
+process = 'mysqld|mariadb'
+
+# a port that must be open on a given host
+tcp = 3306
+tcp-target = localhost
+
+# process that opens a port (see netstat -tulpen) - works for local services only
+# "slirp4netns" is docker network stack
+# "rootlesskit" is docker too
+tcp-process = 'mysqld|mariadbd'
+
+# ----------------------------------------------------------------------
+# data to apply if it was found
+# ----------------------------------------------------------------------
+
+[set]
+
+su = ''
+dbuser = 'root'
+dbpassword = '12345678'
+
+# unschön - das ist in der Prozessliste
+params = '--port={{tcp}} --password={{dbpassword}} --user={{dbuser}} --host={{tcp-target}}'
+
+# ----------------------------------------------------------------------

vendor/ini.class.sh

+#!/bin/bash
+# ======================================================================
+#
+# READ INI FILE with Bash
+# https://axel-hahn.de/blog/2018/06/08/bash-ini-dateien-parsen-lesen/
+#
+# ----------------------------------------------------------------------
+# 2024-02-04  v0.1  Initial version
+# ======================================================================
+
+INI_FILE=
+INI_SECTION=
+
+# ----------------------------------------------------------------------
+# SETTER
+# ----------------------------------------------------------------------
+
+# Set the INI file - and optional section - for short calls.
+# param  string  filename
+# param  string  optional: section
+function ini.set(){
+    INI_FILE=
+    INI_SECTION=
+    if [ ! -f "$1" ]; then
+        echo "ERROR: file does not exist: $1"
+        exit 1
+    fi
+    INI_FILE="$1"
+
+    test -n "$2" && ini.setsection "$2"
+    
+}
+
+# Set the INI section for short calls.
+# param  string  section
+function ini.setsection(){
+    if [ -z "$INI_FILE" ]; then
+        echo "ERROR: ini file needs to be set first. Use ini.set <FILE> [<SECTION>]."
+        exit 1
+    fi
+    if [ -n "$1" ]; then
+        if ini.sections "$INI_FILE" | grep "^${1}$" >/dev/null; then
+            INI_SECTION=$1
+        else
+            echo "ERROR: Section [$1] does not exist in [$INI_FILE]."
+            exit 1
+        fi
+    fi
+}
+
+# ----------------------------------------------------------------------
+# GETTER
+# ----------------------------------------------------------------------
+
+# Get all sections
+# param1 - name of the ini file
+function ini.sections(){
+        local myfile=$1
+        grep "^\[" "$myfile" | sed 's,^\[,,' | sed 's,\].*,,'
+}
+
+# Get all content inside a section
+# param1 - name of the ini file
+# param2 - name of the section in ini file
+function ini.section(){
+        local myfile=$1
+        local mysection=$2
+        sed -e "0,/^\[${mysection}\]/ d" -e '/^\[/,$ d' $myfile | grep -v "^[#;]"
+}
+
+# Get all keys inside a section
+# param1 - name of the ini file
+# param2 - name of the section in ini file
+function ini.keys(){
+        local myfile=$1
+        local mysection=$2
+
+        test -z "$myfile"    && myfile=$INI_FILE
+        test -z "$mysection" && mysection=$INI_SECTION
+
+        ini.section "${myfile}" "${mysection}" \
+            | grep "^[\ \t]*[^=]" \
+            | cut -f 1 -d "="
+}
+
+
+# Get a value of a variable in a given section
+# param1 - name of the ini file
+# param2 - name of the section in ini file
+# param3 - name of the variable to read
+function ini.value(){
+
+        if [ -n "$2" ] && [ -z "$3" ]; then
+            ini.value "$INI_FILE" "$1" "$2"
+        elif [ -z "$2" ]; then
+            ini.value "$INI_FILE" "$INI_SECTION" "$1"
+        else
+            local myfile=$1
+            local mysection=$2
+            local myvarname=$3
+            ini.section "${myfile}" "${mysection}" \
+                | grep "^[\ \t]*${myvarname}[\ \t]*=.*" \
+                | cut -f 2- -d "=" \
+                | sed -e 's,^\ *,,' -e 's, *$,,' \
+                    -e 's,^",,g' -e 's,"$,,g' \
+                    -e "s,^',,g" -e "s,'$,,g"
+        fi
+}
+
+# ----------------------------------------------------------------------