git.plutz.net Git - shellwiki/blob - handlers/10_translations.sh

   1 #!/bin/sh
   2
   3 # Set LANGUAGE_DEFAULT to enable Plugin
   4 [ ! "$LANGUAGE_DEFAULT" ] && return 1
   5
   6 export LANGUAGE_DEFAULT="${LANGUAGE_DEFAULT:-en}"
   7 export HTTP_REFERER="${HTTP_REFERER:-$(HEADER Referer)}"
   8 export LANGUAGE=''
   9
  10 mdfile(){
  11   # Override mdfile Selection from tools.sh
  12   local page="$(PATH "$1")"
  13   page="${page%/}"
  14
  15   # Additional part:
  16   #   if PAGE Address is LANGUAGE Page, jump to regular processing
  17   #   else if LANGUAGE Page exists, add language tag
  18   # Also the reason why `mdfile` should not be used in `acl.sh`
  19   if   [ "${page%/:${LANGUAGE}}" != "$page" ]; then
  20     :
  21   elif [ -f "$_DATA/pages/$page/:$LANGUAGE/#page.md"  ]; then
  22     printf %s\\n "$_DATA/pages/$page/:$LANGUAGE/#page.md"
  23     return 0
  24   elif [ -f "$_EXEC/pages/$page/:$LANGUAGE/#page.md"  ]; then
  25     printf %s\\n "$_EXEC/pages/$page/:$LANGUAGE/#page.md"
  26     return 0
  27   fi 2>&-
  28
  29   # Regular processing, keep in sync with tools.sh
  30   if   [ -f "$_DATA/pages/$page/#page.md" ]; then
  31     printf %s\\n "$_DATA/pages/$page/#page.md"
  32     return 0
  33   elif [ -f "$_EXEC/pages/$page/#page.md" ]; then
  34     printf %s\\n "$_EXEC/pages/$page/#page.md"
  35     return 0
  36   else
  37     return 1
  38   fi 2>&-
  39   #  ^^ suppress error messages produced
  40   #     by printf when stdout was closed
  41 }
  42
  43 case ${HTTP_REFERER} in
  44   */:*/*):;;
  45   */:*)
  46    LANGUAGE_REFERRED="${HTTP_REFERER##*/:}"
  47    ;;
  48 esac
  49
  50 LANGUAGE="${LANGUAGE_REFERRED:-${LANGUAGE_DEFAULT}}"
  51
  52 case ${PATH_INFO} in
  53   */:?*/\[attachment\]/?*)
  54     LANGUAGE="${PATH_INFO#*/:}"
  55     LANGUAGE="${LANGUAGE%%/*}"
  56     PATH_INFO="${PATH_INFO%%:?*/*}${PATH_INFO#*/:?*/}"
  57     ;;
  58   */:?*/\[attachment\])
  59     LANGUAGE="${PATH_INFO#*/:}"
  60     LANGUAGE="${LANGUAGE%%/*}"
  61     PATH_INFO="${PATH_INFO%:?*/\[attachment\]}[attachment]"
  62     ;;
  63   */:?*/\[*\])
  64     :;;  # Default handler, considered valid in most cases
  65   */:?*/?*)
  66     :;;  # Default attachment handler
  67   */:?*/)   # Faulty URL build
  68     REDIRECT "${_BASE}${PATH_INFO%/}"
  69     ;;
  70 # */:"${LANGUAGE_DEFAULT}")
  71 #   REDIRECT "${_BASE}${PATH_INFO%:*}"
  72 #   ;;
  73   */:?*)
  74     LANGUAGE="${PATH_INFO##*/:}"
  75
  76     if mdfile "${PATH_INFO}/"; then
  77       # Pretend to deliver Language Page, if Language Tag is valid
  78       PATH_INFO="${PATH_INFO}/"
  79     elif [ "$LANGUAGE" = "$LANGUAGE_DEFAULT" ]; then
  80       # Pretend Language Tag was omitted for default Language
  81       PATH_INFO="${PATH_INFO%:*}"
  82     else
  83       # Deliver default Page if Language is not found
  84       ERROR_MSG="TRANSLATION NOT FOUND"
  85       PATH_INFO="${PATH_INFO%:*}"
  86     fi
  87     ;;
  88   /|*/*/)  # Keep Language from Referer
  89     if [ "$LANGUAGE_REFERRED" -a "$LANGUAGE_REFERRED" != "$LANGUAGE_DEFAULT" ]; then
  90       REDIRECT "${_BASE}${PATH_INFO}:${LANGUAGE_REFERRED}"
  91     fi
  92     ;;
  93   */\[*\])  # Keep Language from Referer
  94     if [ "$LANGUAGE_REFERRED" -a "$LANGUAGE_REFERRED" != "$LANGUAGE_DEFAULT" ]; then
  95       REDIRECT "${_BASE}${PATH_INFO%\[*\]}:${LANGUAGE_REFERRED}/[${PATH_INFO##*/\[}"
  96     fi
  97     ;;
  98 esac
  99
 100 return 1