From: paul <paul@plutz.net>
Date: Sat, 13 Jun 2015 16:04:16 +0000 (+0000)
Subject: merge with cgi scripts from busy
X-Git-Url: https://git.plutz.net/?a=commitdiff_plain;h=49831f4301899b008b94f590b4c9765f76b4c0f0;p=cgilite

merge with cgi scripts from busy

svn path=/trunk/; revision=4
---

diff --git a/action.sh b/action.sh
index 390c5ef..5432664 100755
--- a/action.sh
+++ b/action.sh
@@ -19,6 +19,6 @@
 
 ACTION="$(echo "$_GET[\"action\"]" |egrep '^[a-zA-Z0-9_-]+$')"
 ACTION="${_EXEC}/actions/${ACTION}.sh"
-[ -x "$ACTION" ] || echo -n "Location: /?p=error\n\n"
+[ -x "$ACTION" ] || echo -n "Location: ?p=error\n\n"
 
 . $ACTION
diff --git a/cgi.sh b/cgi.sh
index c70c4d2..37f4787 100755
--- a/cgi.sh
+++ b/cgi.sh
@@ -1,39 +1,44 @@
 #!/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
 
+[ -z "$HTTP_REFERER" ] && HTTP_REFERER="./"
+
 cgi_get() {  # parse HTTP GET string
+  debug "== CGI DATA: GET =="
   echo "$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')")"
+    key="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
+    val="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
+    _GET["$key"]="$(echo -e "$(echo -E "$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 "$val" |sed 's:+: :g;s:%:\\x:g')")"
+    key="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
+    val="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
+    value="$(echo -e "$(echo -E "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g;')")"
     if [ -n "$_POST[\"$key\"]" ]; then
       n=0
       while [ -n "$_POST[\"$key$n\"]" ]; do n=$(($n + 1)); done
@@ -41,15 +46,17 @@ cgi_post() {  # parse HTTP POST string
     else
       _POST["$key"]="$value"
     fi
-    #debug "_POST[$key] => $value"
+    debug "_POST[$key] => $value"
   done
 }
 
 cgi_refdata() { # Parse GET data from referer
+  debug "== CGI DATA: 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 "$val" |sed 's:+: :g;s:%:\\x:g')")"
+    key="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\1:')"
+    val="$(echo -E "$query" |sed -r 's:^([a-zA-Z0-9_-]*)=(.*)$:\2:')"
+    _REF["$key"]="$(echo -e "$(echo -E "$val" |sed 's:+: :g;s:\\:\\\\:g;s:%:\\x:g')")"
+    debug "_REF[$key] => $val"
   done
 }
 
diff --git a/index.cgi b/index.cgi
index 6359a0a..9c068b5 100755
--- a/index.cgi
+++ b/index.cgi
@@ -17,7 +17,9 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with shcgi.  If not, see <http://www.gnu.org/licenses/>. 
 
-export LC_ALL=C
+export LC_ALL=C LANG=C
+DBG_ENABLED=false
+DBG_FILE=/dev/stderr
 
 # this program is supposed to be symlinked into a http root directory
 # we will use the http root as object storage (data directory) and call sub
@@ -28,16 +30,24 @@ real="$(readlink -f $call)"
 _DATA="$(dirname "$call")"  #storage directory
 _EXEC="${real%/shcgi/index.cgi}"  #execution directory
 
+# put debug options in the local.opts file
+[ -r "$_DATA/local.opts" ] && . "$_DATA/local.opts"
+
 # basic functions
-die() {
-  echo "$@" >&2
-  exit 1
+debug() { #change to false to disable debugging
+  if [ "$DBG_ENABLED" = true -a -n "$*" ]; then
+    echo -E "$@" >>"$DBG_FILE"
+  elif [ "$DBG_ENABLED" = true -a -z "$*" ]; then
+    tee -a "$DBG_FILE"
+  elif [ -z "$*" ]; then
+    cat
+  fi
 }
 
-debug() { #change to false to disable debugging
-  #true && echo "$*" >>debug
-  true && [ -n "$*" ] && echo -E "$*" >>/dev/stderr
-  true && [ -z "$*" ] && tee /dev/stderr
+die() {
+  debug "$@"
+  echo -E "$@" >>/dev/stderr
+  exit 1
 }
 
 data_dirs(){
diff --git a/local.opts b/local.opts
new file mode 100644
index 0000000..a473b58
--- /dev/null
+++ b/local.opts
@@ -0,0 +1,8 @@
+# This file is meaningless in the exec directory
+# You can copy it to your data directory (usually
+# your HTTP root) to set per instance debug
+# options and the like
+# beware that the file is sourced as a shell script
+
+DBG_ENABLED=false
+DBG_FILE=/dev/stderr
diff --git a/page.sh b/page.sh
index a260233..578e93a 100755
--- a/page.sh
+++ b/page.sh
@@ -1,33 +1,33 @@
 #!/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/>. 
 
 echo -n "Content-Type: text/html;charset=utf-8\n\n"
 
-PAGE="$(echo "$_GET[\"p\"]" |egrep '^[a-zA-Z0-9_-]+$')"
+PAGE="$(echo -E "$_GET[\"p\"]" |egrep '^[a-zA-Z0-9_-]+$')"
 PAGE="${_EXEC}/pages/${PAGE}.sh"
 [ -x "$PAGE" ] || PAGE="${_EXEC}/pages/error.sh"
 
 NAVIGATION() {
   for each in "${_EXEC}"/pages/*.sh; do
-    link="$(echo "$each" |sed -r "s:^.*/([^/]*)\.sh$:\1:")"
+    link="$(echo -E "$each" |sed -r "s:^.*/([^/]*)\.sh$:\1:")"
     title="$($each title)"
-    [ -n "$title" ] && echo "/?p=$link $title"
+    [ -n "$title" ] && echo -E "/?p=$link $title"
   done
 }