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validate port and username

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xiongdian.me 2023-06-02 15:02:38 +08:00
parent 76a941ac75
commit e937935a28
1 changed files with 15 additions and 0 deletions
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15
scripts/riot
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@ -5,6 +5,19 @@ source "$THIS_DIR/../tools/common.sh"
RIOT_TRUST_CLIENT=${RIOT_TRUST_CLIENT:-${DFS_TRUST:-0}} RIOT_TRUST_CLIENT=${RIOT_TRUST_CLIENT:-${DFS_TRUST:-0}}
RIOT_TRUST_SERVER=${RIOT_TRUST_SERVER:-0} RIOT_TRUST_SERVER=${RIOT_TRUST_SERVER:-0}
# check if port number valid
check_port() {
( echo $1 | grep -qxE "[1-9][0-9]{0,4}" ) || return 1
test $1 -lt 65536 -a $1 -gt 0 || return 1
return 0
}
# check if username valid
check_username() {
( echo $1 | grep -qxE "^[a-z][-a-z0-9_]*\$" ) || return 1
return 0
}
# get single server setting # get single server setting
# may be called more than once # may be called more than once
get_server_meta() { get_server_meta() {
@ -20,11 +33,13 @@ get_server_meta() {
if [[ "$remote" == *@* ]]; then if [[ "$remote" == *@* ]]; then
RET_USERNAME=${remote%%@*} RET_USERNAME=${remote%%@*}
remote=${remote#*@} remote=${remote#*@}
check_username $RET_USERNAME || fmt_fatal invalid username \"$RET_USERNAME\"
fi fi
# if in the form ...:22 # if in the form ...:22
if [[ "$remote" == "["*"]":* || ( "$remote" != "["*"]" && "$remote" == *:* ) ]]; then if [[ "$remote" == "["*"]":* || ( "$remote" != "["*"]" && "$remote" == *:* ) ]]; then
RET_PORT=${remote##*:} RET_PORT=${remote##*:}
remote=${remote%:*} remote=${remote%:*}
check_port $RET_PORT || fmt_fatal invalid port number \"$RET_PORT\"
fi fi
# presets -- match domain # presets -- match domain
local domain=${remote##*.} local domain=${remote##*.}