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modules/jsonDB: add Jssh_stripKey

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Kay Marquardt (Gnadelwartz) 2021-01-04 12:40:14 +01:00
parent 5ad7be59ba
commit e072afac41
1 changed files with 12 additions and 1 deletions
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13
modules/jsonDB.sh
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@ -5,7 +5,7 @@
# This file is public domain in the USA and all free countries. # This file is public domain in the USA and all free countries.
# Elsewhere, consider it to be WTFPLv2. (wtfpl.net/txt/copying) # Elsewhere, consider it to be WTFPLv2. (wtfpl.net/txt/copying)
# #
#### $$VERSION$$ v1.21-1-g83fc57e #### $$VERSION$$ v1.21-2-g5ad7be5
# #
# source from commands.sh to use jsonDB functions # source from commands.sh to use jsonDB functions
# #
@ -39,6 +39,17 @@ azAZ09="${azAZaz}${R090909}" # a-zA-z0-9 :alnum:
# characters allowed for key in key/value pairs # characters allowed for key in key/value pairs
JSSH_KEYOK="[-${azAZ09},._]" JSSH_KEYOK="[-${azAZ09},._]"
# read string from stdin and and strip invalid characters
# $1 - invalid charcaters are replaced with first character
# or deleted if $1 is empty
jssh_stripKey() { # tr: we must escape first - in [-a-z...]
if [[ "$1" =~ ^${JSSH_KEYOK} ]]; then # tr needs [\-...
tr -c "${JSSH_KEYOK/\[-/[\\-}\r\n" "${1:0:1}"
else
tr -dc "${JSSH_KEYOK/\[-/[\\-}\r\n"
fi
}
# use flock if command exist # use flock if command exist
if [ "$(LC_ALL=C type -t "flock")" = "file" ]; then if [ "$(LC_ALL=C type -t "flock")" = "file" ]; then