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Use a more resilient technique for parsing GET and POST #1

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49 changes: 18 additions & 31 deletions cgi-bin/httputils
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Original file line number Diff line number Diff line change
Expand Up @@ -10,41 +10,28 @@ read_POST_vars() {
}

parse_POST_params() {
local q p k v

if [[ ! "${QUERY_STRING_POST}" ]]; then
return
fi

q="${QUERY_STRING_POST}&"

while [[ ! -z "$q" ]]; do
p="${q%%&*}" # get first part of query string
k="${p%%=*}" # get the key (variable name) from it
v="${p#*=}" # get the value from it
q="${q#$p&*}" # strip first part from query string

POST_PARAMS["${k}"]="${v}"
done
saveIFS=$IFS
IFS='=&'
parm=($QUERY_STRING_POST)
IFS=$saveIFS
for ((i=0; i<${#parm[@]}; i+=2))
do
POST_PARAMS[${parm[i]}]=${parm[i+1]}
done
return
}

parse_GET_params() {
local q p k v

if [[ ! "${QUERY_STRING}" ]]; then
return
fi

q="${QUERY_STRING}&"

while [[ ! -z "$q" ]]; do
p="${q%%&*}" # get first part of query string
k="${p%%=*}" # get the key (variable name) from it
v="${p#*=}" # get the value from it
q="${q#$p&*}" # strip first part from query string

GET_PARAMS["${k}"]="${v}"
done
saveIFS=$IFS
IFS='=&'
parm=($QUERY_STRING)
IFS=$saveIFS
for ((i=0; i<${#parm[@]}; i+=2))
do
GET_PARAMS[${parm[i]}]=${parm[i+1]}
done
return
}

read_POST_vars
Expand Down