Merge commit '6bc502434737d7f08379e79b94fc6fda424ef779'

[shellwiki] / index.cgi

diff --git a/index.cgi b/index.cgi
index 90f7d776bf4540a219aa016c2d2f37c77a918c97..c121c3879b050597602b80cb8e39845254fdf737 100755 (executable)
--- a/index.cgi
+++ b/index.cgi
@@ -1,36 +1,37 @@
 #!/bin/sh
 
+# Copyright 2022 - 2023 Paul Hänsch
+# 
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+# IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+export REV_PAGES=${REV_PAGES:-true}
+export REV_ATTACHMENTS=${REV_ATTACHMENTS:-false}
+export WIKI_THEME="${WIKI_THEME:-default}"
+export SEARCH_INDEX="${SEARCH_INDEX:-true}"
+export USER_AUTH="${USER_AUTH:-default}"
+
 . "${_EXEC:-${0%/*}}/cgilite/cgilite.sh"
 . "${_EXEC}/cgilite/session.sh"
-. "${_EXEC}/cgilite/file.sh"
-. "${_EXEC}/cgilite/users.sh"
+. "${_EXEC}/auth/${USER_AUTH}.sh"
+. "${_EXEC}/tools.sh"
 . "${_EXEC}/acl.sh"
+. "${_EXEC}/themes/${WIKI_THEME}.sh"
 
-. "${_EXEC}/themes/default.sh"
-
-CACHE_AGE=${CACHE_AGE:-1800}
-export MD_MACROS="$_EXEC/macros"
-export MD_HTML="${MD_HTML:-false}"
-
-if [ "$(which awk)" ]; then
-  md() { awk -f "$_EXEC/md_macros.awk" -f "$_EXEC/cgilite/markdown.awk"; }
-elif [ "$(which busybox)" ]; then
-  md() { busybox awk -f "$_EXEC/md_macros.awk" -f "$_EXEC/cgilite/markdown.awk"; }
-else
-  md() { cat; }
-fi
-
-mdfile(){
-  local page="$(PATH "$1")"
+which git >/dev/null || REV_PAGES=false
+[ "$REV_PAGES" != true ] && REV_ATTACHMENTS=false
 
-  if   [ -f "$_DATA/pages/$page/#page.md" ]; then
-    printf %s\\n "$_DATA/pages/$page/#page.md"
-  elif [ -f "$_EXEC/pages/$page/#page.md" ]; then
-    printf %s\\n "$_EXEC/pages/$page/#page.md"
-  else
-    return 1
-  fi
-}
+# Renew session cookie, only if cookie already set
+[ "$(COOKIE session)" ] && SESSION_COOKIE
 
 wiki_text() {
   # Print source text of a wiki page
@@ -42,55 +43,35 @@ wiki_text() {
   cat -- "$mdfile"
 }
 
-wiki() {
-  # Print content of a wiki page
-  # Get page from data or underlay dir, handle caching
-  local page="$(PATH "$1")" mdfile cache cachetime
-
-  cache="$_DATA/pages/$page/#page.${USER_ID}.cache"
-
-  mdfile="$(mdfile "$page")" || return 4
-  acl_read "$page" || return 3
-
-  cachetime="$(stat -c %Y -- "$mdfile" "$cache" 2>/dev/null)"
-
-  if [ "${cachetime#*${BR}}" -gt "${cachetime%${BR}*}" \
-    -a "${cachetime#*${BR}}" -gt "$((_DATE - CACHE_AGE))" ]; then
-    cat "${cache}"
-  else
-    mkdir -p -- "$_DATA/pages/$page/"
-    # Macros expect to find page directory as working dir
-    ( cd -- "$_DATA/pages/$page/";
-      sed -E '1,20{ /^%[a-z]+/d; }' "$mdfile" \
-      | md |tee -- "${cache}.$$"
-    )
-    grep -q '^%nocache' "$mdfile" \
-    && rm -- "${cache}.$$" \
-    || mv -- "${cache}.$$" "${cache}"
-  fi
-}
-
-case "${PATH_INFO}" in
-  /"[.]"/*)
-    FILE "${_EXEC}/${PATH_INFO#/\[.\]}"
-    ;;
-  */\[*\]/) :;;
-  */)
-    theme_page "${PATH_INFO}"
-    exit 0
-    ;;
-  */"[login]")
-    theme_login
-    exit 0
-    ;;
-  */"[register]")
-    theme_register
-    exit 0
-    ;;
-  */"#"*)
-    :  # TODO: Invalid page name
-    ;;
-esac
+if [ "$REV_PAGES" = true -a ! -f "$_DATA/.gitignore" ]; then
+  cat >"$_DATA/.gitignore" <<-EOF
+       users.db
+       serverkey
+       tags/
+       index/
+       **/#cache/
+       **/#page.md.lock
+       **/#page.*.cache
+       **/#page.*.cache.*
+       **/#page:*.*.cache
+       **/#page:*.*.cache.*
+       **/#index.flag
+       EOF
+  [ "$REV_ATTACHMENTS" != true ] \
+  && printf '**/#attachments/\n' >>"$_DATA/.gitignore"
+  git init "$_DATA"
+  git -C "$_DATA" add .gitignore
+  printf '%s\n' "" "[user]" \
+         "email = \"shellwiki@localhost\"" \
+         "name = \"Shellwiki\"" \
+         >>"$_DATA/.git/config"
+  git -C "$_DATA" commit -m 'initialization' -- .gitignore
+fi 1>&2
 
-. "$_EXEC/page_edit.sh"
-. "$_EXEC/attachment.sh"
+for handler in "$_EXEC"/handlers/*; do
+  . "$handler" && break
+done
+if [ $? != 0 ]; then
+  export ERROR_MSG="The presented URL schema cannot be handled"
+  theme_error 400
+fi