X-Git-Url: http://git.plutz.net/?p=cgilite;a=blobdiff_plain;f=cgilite.sh;h=e145f2eebe173be82475cde1ec60fb200a14ed63;hp=ddad1d4811c7635c8032c08620666fec9a9b2232;hb=06a47630fe85f332628b2c3c6dcf1cedba215862;hpb=87f88f16edb809677be04464c15a6c89c3641724

diff --git a/cgilite.sh b/cgilite.sh
index ddad1d4..e145f2e 100755
--- a/cgilite.sh
+++ b/cgilite.sh
@@ -27,6 +27,8 @@ BR='
 '
 cgilite_timeout=2
 
+debug(){ [ $# -gt 0 ] && printf '%s\n' "$@" >&2 || tee -a /dev/stderr; }
+
 PATH(){ 
   local str seg out
   [ $# -eq 0 ] && str="$(cat)" || str="$*"
@@ -77,7 +79,9 @@ if [ -z "$REQUEST_METHOD" ]; then
 
     SERVER_PROTOCOL="${SERVER_PROTOCOL%${CR}}"
     PATH_INFO="$(HEX_DECODE "${REQUEST_URI%\?*}" |PATH)"
-    QUERY_STRING="${REQUEST_URI#*\?}"
+    [ "${REQUEST_URI}" = "${REQUEST_URI#*\?}" ] \
+    && QUERY_STRING='' \
+    || QUERY_STRING="${REQUEST_URI#*\?}"
     cgilite_headers=''; while read -r hl; do
       hl="${hl%${CR}}"; [ "$hl" ] || break
       case $hl in
@@ -95,11 +99,16 @@ if [ -z "$REQUEST_METHOD" ]; then
     # Without Content-Length header, connection will terminate after
     # script.
 
-    cgilite_status='200 OK'; cgilite_response=''; cgilite_cl="Connection: close${CR}";
+    cgilite_status='200 OK'; cgilite_response=''; cgilite_cl="Connection: close${CR}${BR}";
     . "$0" | while read -r l; do case $l in
-      Status:*) cgilite_status="${l#Status: }";;
-      Content-Length:*) cgilite_cl="${l}";;
-      $CR) printf '%s %s\r\n%s%s\n\r\n' \
+      Status:*)
+        cgilite_status="${l#Status: }";;
+      Content-Length:*)
+        cgilite_cl=""
+        cgilite_response="${cgilite_response:+${cgilite_response}${BR}}${l}";;
+      Connection:*)
+        cgilite_cl="${l}${BR}";;
+      $CR) printf '%s %s\r\n%s%s\r\n' \
              'HTTP/1.1' "${cgilite_status%${CR}}" \
              "${cgilite_response}${cgilite_response:+${BR}}" "${cgilite_cl}"
            cat || kill $$
@@ -180,35 +189,51 @@ COOKIE(){
 }
 
 HTML(){
-  # HTML Entity Coding
-  # Prints UTF-8 string as decimal Unicode Code Points
-  # Useful for escaping user input for use in HTML text and attributes
-  { [ $# -eq 0 ] && cat || printf %s "$*"; } \
-  | hexdump -ve '/1 "%03o\n"' \
-  | while read n; do
-    case $n in
-      # bitbanging octal UTF-8 chains into singular 7 digit octal numbers
-      [01]??) printf '0000%s' $n;; # 7 bit ASCII character, nothing to do
-      2??)    printf '%s' ${n#2};; # tail fragment, append 6 bit
-      3[0123]?) printf '000%s' ${n#3};; # 2 octet (11 bit) chain start
-      34?) printf '00%s' ${n#34};; # 3 octet (16 bit) chain start
-      35?) printf '01%s' ${n#35};; # 3 octet chain start, high
-      36?) printf '%s' ${n#36};;   # 4 octet (21 bit) chain start
+  # Escape HTML cahracters
+  # Also escape [, ], and \n for use in html-sh
+  local str out
+  [ $# -eq 0 ] && str="$(cat)" || str="$*"
+  while [ "$str" ]; do
+    case $str in
+      \&*) out="${out}&";;
+      \<*) out="${out}&lt;";;
+      \>*) out="${out}&gt;";;
+      \"*) out="${out}&quot;";;
+      \'*) out="${out}&#x27;";;
+      \[*) out="${out}&#x5B;";;
+      \]*) out="${out}&#x5D;";;
+      "${CR}"*) out="${out}&#x0D;";;
+      "${BR}"*) out="${out}&#x0A;";;
+      *) out="${out}${str%"${str#?}"}";;
     esac
-  done \
-  | sed -E 's;.{7};&\n;g;' \
-  | while read n; do
-    printf '&#%d;' $((0$n))
+    str="${str#?}"
   done
+  printf %s "$out"
 }
 
 URL(){
-  # Code every character in URL escape hex format
-  # except alphanumeric ascii
-
-  { [ $# -eq 0 ] && cat || printf %s "$*"; } \
-  | hexdump -v -e '/1 ",%02X"' \
-  | sed 's;,;%;g; s;%2F;/;g;'
+  # Escape pathes, so they can be used in link tags and HTTP Headers
+  local str out
+  [ $# -eq 0 ] && str="$(cat)" || str="$*"
+  while [ "$str" ]; do
+    case $str in
+      \&*) out="${out}%26";;
+      \"*) out="${out}%22";;
+      \'*) out="${out}%27";;
+      \?*) out="${out}%3F";;
+      \#*) out="${out}%23";;
+      \[*) out="${out}%5B";;
+      \]*) out="${out}%5D";;
+      \ *) out="${out}%20";;
+      "	"*) out="${out}%09";;
+      "${CR}"*) out="${out}%0D";;
+      "${BR}"*) out="${out}%0A";;
+      %*) out="${out}%25";;
+      *) out="${out}${str%"${str#?}"}";;
+    esac
+    str="${str#?}"
+  done
+  printf %s "$out"
 }
 
 SET_COOKIE(){