#!/bin/zsh
-# Copyright 2014 Paul Hänsch
+# Copyright 2014,2015 Paul Hänsch
#
-# This file is part of Serve0.
+# This file is part of shcgi.
#
-# Serve0 is free software: you can redistribute it and/or modify
+# shcgi is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
-# Serve0 is distributed in the hope that it will be useful,
+# shcgi is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
-# along with Serve0. If not, see <http://www.gnu.org/licenses/>.
+# along with shcgi. If not, see <http://www.gnu.org/licenses/>.
declare -A _GET
declare -A _POST
declare -A _REF
+declare -A _COOKIE
+
+[ -z "$HTTP_REFERER" ] && HTTP_REFERER="./"
cgi_get() { # parse HTTP GET string
- echo "$QUERY_STRING" |tr '&' '\n' |while read query; do
- key="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
- val="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
- _GET["$key"]="$(echo -e "$(echo "$val" |sed 's:+: :g;s:%:\\x:g')")"
+ debug "== CGI DATA: GET =="
+ printf '%s\n' "$QUERY_STRING" |tr '&' '\n' |while read query; do
+ key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\1:')"
+ val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\2:')"
+ _GET[$key]="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
+ debug "_GET[$key] => $val"
done
}
cgi_post() { # parse HTTP POST string
+ debug "== CGI DATA: POST =="
sed -u 1q |tr '&' '\n' |while read query; do
- key="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
- val="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
- value="$(echo -e "$(echo "$val" |sed 's:+: :g;s:%:\\x:g')")"
- if [ -n "$_POST[\"$key\"]" ]; then
+ key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\1:')"
+ val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\2:')"
+ value="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g;')")"
+ if [ -n "${_POST[$key]}" ]; then
n=0
- while [ -n "$_POST[\"$key$n\"]" ]; do n=$(($n + 1)); done
- _POST["$key$n"]="$value"
+ while [ -n "${_POST[$key$n]}" ]; do n=$(($n + 1)); done
+ _POST[$key$n]="$value"
else
- _POST["$key"]="$value"
+ _POST[$key]="$value"
fi
- #debug "_POST[$key] => $value"
+ debug "_POST[$key] => $value"
done
}
cgi_refdata() { # Parse GET data from referer
- echo "$HTTP_REFERER" |cut -d'?' -f2- |tr '&' '\n' |while read query; do
- key="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
- val="$(echo "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
- _REF["$key"]="$(echo -e "$(echo "$val" |sed 's:+: :g;s:%:\\x:g')")"
+ debug "== CGI DATA: REFERER =="
+ printf '%s\n' "$HTTP_REFERER" |cut -d'?' -f2- |tr '&' '\n' |while read query; do
+ key="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\1:')"
+ val="$(printf %s "$query" |sed -r 's:^([a-zA-Z0-9_-]+)=(.*)$:\2:')"
+ _REF[$key]="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
+ debug "_REF[$key] => $val"
+ done
+}
+
+cgi_cookie() { # Parse GET data from referer
+ debug "== CGI DATA: COOKIE =="
+ printf '%s\n' "$HTTP_COOKIE" |tr ';' '\n' |while read query; do
+ key="$(printf %s "$query" |sed -r 's:^ *([a-zA-Z0-9_-]+)=(.*)$:\1:')"
+ val="$(printf %s "$query" |sed -r 's:^ *([a-zA-Z0-9_-]+)=(.*)$:\2:')"
+ _COOKIE[$key]="$(printf "$(printf %s "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
+ debug "_COOKIE[$key] => $val"
done
}
urlsave(){
- echo -E "$*" |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;'
+ printf %s "$*" \
+ | sed 's; ;%20;g;
+ s;!;%21;g;
+ s;";%22;g;
+ s;%;%25;g;
+ s;&;%26;g;
+ s;(;%28;g;
+ s;);%29;g;
+ s;:;%3a;g
+ s;<;%3c;g;
+ s;>;%3e;g;
+ s;'\'';%27;g;
+ s;\?;%3f;g;'
}