3 # Copyright 2014,2015 Paul Hänsch
5 # This file is part of shcgi.
7 # shcgi is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU Affero General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # shcgi is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU Affero General Public License for more details.
17 # You should have received a copy of the GNU Affero General Public License
18 # along with shcgi. If not, see <http://www.gnu.org/licenses/>.
24 [ -z "$HTTP_REFERER" ] && HTTP_REFERER="./"
26 cgi_get() { # parse HTTP GET string
27 debug "== CGI DATA: GET =="
28 printf '%s\n' "$QUERY_STRING" |tr '&' '\n' |while read query; do
29 key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
30 val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
31 _GET["$key"]="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
32 debug "_GET[$key] => $val"
36 cgi_post() { # parse HTTP POST string
37 debug "== CGI DATA: POST =="
38 sed -u 1q |tr '&' '\n' |while read query; do
39 key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
40 val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
41 value="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g;')")"
42 if [ -n "$_POST[\"$key\"]" ]; then
44 while [ -n "$_POST[\"$key$n\"]" ]; do n=$(($n + 1)); done
45 _POST["$key$n"]="$value"
47 _POST["$key"]="$value"
49 debug "_POST[$key] => $value"
53 cgi_refdata() { # Parse GET data from referer
54 debug "== CGI DATA: REFERER =="
55 printf '%s\n' "$HTTP_REFERER" |cut -d'?' -f2- |tr '&' '\n' |while read query; do
56 key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
57 val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
58 _REF["$key"]="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
59 debug "_REF[$key] => $val"
64 printf %s "$*" |sed 's:%:\%25:g;s:\?:\%3F:g;s:&:\%26:g;s:'\'':\%27:g;s: :\%20:g;s:!:\%21:g;s:(:\%28:g;s:):\%29:g;s:":\%22:g;'