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Add getFTLAPIPort function

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Add ftl_api_port function

Signed-off-by: Christian König <ckoenig@posteo.de>

Use getFTLAPIPort in pihole

Signed-off-by: Christian König <ckoenig@posteo.de>

Use default portfile as fallback

Signed-off-by: Christian König <ckoenig@posteo.de>

Fix stickler

Signed-off-by: Christian König <ckoenig@posteo.de>

Correct variables

Signed-off-by: Christian König <ckoenig@posteo.de>

Apply suggestions from code review

Co-authored-by: DL6ER <DL6ER@users.noreply.github.com>

Add test getFTLAPIPort returing default port

Signed-off-by: Christian König <ckoenig@posteo.de>

Remove unused code from test_key_val_replacement_works

Signed-off-by: Christian König <ckoenig@posteo.de>

Add getFTLAPIPort_custom test

Signed-off-by: Christian König <ckoenig@posteo.de>

Fix output format

Signed-off-by: Christian König <ckoenig@posteo.de>

Add debugging

Signed-off-by: Christian König <ckoenig@posteo.de>

Remove debugging and fix function

Signed-off-by: Christian König <ckoenig@posteo.de>
This commit is contained in:
Christian König 2022-02-20 22:24:17 +01:00
parent bd956b5f16
commit 42424b515b
3 changed files with 55 additions and 5 deletions
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27
advanced/Scripts/utils.sh
View file

@ -33,3 +33,30 @@ addOrEditKeyValPair() {
echo "${key}=${value}" >> "${file}"
fi
}
#######################
# returns FTL's current telnet API port
#######################
getFTLAPIPort(){
local -r FTLCONFFILE="/etc/pihole/pihole-FTL.conf"
local -r DEFAULT_PORT_FILE="/run/pihole-FTL.port"
local -r DEFAULT_FTL_PORT=4711
local PORTFILE
local ftl_api_port
if [[ -f "$FTLCONFFILE" ]]; then
# if PORTFILE is not set in pihole-FTL.conf, use the default path
PORTFILE="$( (grep "^PORTFILE=" $FTLCONFFILE || echo "$DEFAULT_PORT_FILE") | cut -d"=" -f2-)"
fi
if [[ -s "$PORTFILE" ]]; then
# -s: FILE exists and has a size greater than zero
ftl_api_port=$(<"$PORTFILE")
# Exploit prevention: unset the variable if there is malicious content
# Verify that the value read from the file is numeric
[[ "$ftl_api_port" =~ [^[:digit:]] ]] && unset ftl_api_port
fi
# echo the port found in the portfile or default to the default port
echo "${ftl_api_port:=$DEFAULT_FTL_PORT}"
}