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#!/usr/bin/haserl --shell=/bin/bash

<%

VERSION=0.4

path=$(/opt/bin/pdecode <<<"${PATH_INFO#/}")

error() {
  echo -e "Content-Type: text/plain; charset=utf-8\n"
  echo "$1"
  exit 1
}

irc() {
  echo >/dev/null
  #/opt/bin/birk -c radionova "$1"
}

byline() {
  echo "skrevet av $(ls -ld $1 | awk '{print $3}')"
}

info() {
  stat -c '%n: %U %G %A %Y' $1
}

link() {
  local raw=${REQUEST_URI%\?*}
  local clean="/${raw%/}"
  local rawt="$BASE/$2"
  local cleant="/${rawt%/}"
  local target=""
  [ -n "$3" ] && target=" target='$3'"
  [ $cleant = $clean ] && echo "$1" || echo "<a$target href='$BASE/$2'>$1</a>"
}

qlink() {
  text="$1" && url="$BASE/$2" && shift 2
  local IFS=\& && echo -ne "<a href='$url?$*'>$text</a>\n"
}

redirect() {
  echo -ne "Location: $SCHEME$HOST$1\r\n"
  echo -ne "Status: 302\r\n"
  echo -ne "Content-Type: text/html; charset=utf-8\r\n\r\n"
  echo "٩(͡๏̯͡๏)۶>"
  exit
}

stikkordsøk() {
  [ "$action" = index.html -o "$action" = ditt -o "$action" = gruppe ] || return
  echo "<form method=get>"
  echo "<p><b>stikkordsøk</b>"
  echo "<br><input type=text size=10 name=stikkord value='$GET_stikkord'>"
  echo "<input type=hidden name=dato value='$GET_dato'>"
  echo "</form>"
}

kalender() {
  [ "$action" = index.html -o "$action" = ditt -o "$action" = gruppe ] || return
  echo "<p><b>for mye? reis i tid…</b>"
  IFS=- read y m d <<<"$GET_dato"
  n=0
  [ -n "$GET_stikkord" ] && n=1
  if [ -z "$y" ]; then
    for directory in $(cut -d / -f $((n + 2)) | sort | uniq); do
      year=$(basename $directory)
      qlink "$year" "$action/$args" "dato=$year" "stikkord=$GET_stikkord"
    done
  elif [ -z "$m" ]; then
    echo "<b>"
    qlink "$y" "$action/$args" "stikkord=$GET_stikkord"
    echo "</b><br>"
    for directory in $(cut -d / -f $((n + 3)) | sort | uniq); do
      month=$(basename $directory)
      qlink "$month" "$action/$args" "dato=$y-$month" "stikkord=$GET_stikkord"
    done
  elif [ -z "$d" ]; then
    echo "<b>"
    qlink "$y" "$action/$args" "stikkord=$GET_stikkord"
    echo "/"
    qlink "$m" "$action/$args" "dato=$y" "stikkord=$GET_stikkord"
    echo "</b><br>"
    for directory in $(cut -d / -f $((n + 4)) | sort | uniq); do
      day=$(basename $directory)
      qlink "$day" "$action/$args" "dato=$y-$m-$day" "stikkord=$GET_stikkord"
    done
  else
    echo "<b>"
    qlink "$y" "$action/$args" "stikkord=$GET_stikkord"
    echo "/"
    qlink "$m" "$action/$args" "dato=$y" "stikkord=$GET_stikkord"
    echo "/"
    qlink "$d" "$action/$args" "dato=$y-$m" "stikkord=$GET_stikkord"
    echo "</b><br>"
  fi
}

meny() {
  echo -e "Content-Type: text/html; charset=utf-8\n"
  echo "<!doctype html>"
  echo "<title>tears</title>"
  echo "<link href=$BASE/tears.css rel=stylesheet>"
  echo "<script src=$BASE/date.js></script>"
  echo "<script src=$BASE/sortable.js></script>"
  echo "<script src=$BASE/tears.js></script>"
  echo "<div id='meny'>"
  link "<pre>$(figlet -f threepoint tears)</pre>" ""
  echo "<p><b>hei, $(whoami) &hearts;</b><br>"
  link 'skriv en artikkel' 'skriv'
  echo "<p><b>du har tilgang til…</b><br>"
  link 'dine artikler' 'ditt' && echo "<br>"
  for group in $available; do
    link "$group" "gruppe/$group"
  done
  kalender
  stikkordsøk
  echo "<p><b>kos deg! ٩(͡๏̯͡๏)۶</b>"
  echo "<p class=footer><b>tears $VERSION</b><br>"
  link 'todo' 'todo' && echo '|' && link 'teatime' 'teatime'
  echo "</div>"
}

liste() {
  n=$((${GET_n:-0} + 7))
  finder="$finder -printf '%h\t%TT\t%f\n'"
  while read; do
    d=$(cut -f 1 <<<"$REPLY")
    f=$(cut -f 3 <<<"$REPLY")
    ok=1
    [ "$f" ] && kort $d/$f
  done <<< $(eval $finder | sort -r | head -$n | tail -7)
  if [ -z "$ok" ]; then
    echo "<p><b>Ingen artikler</b>"
  else
    echo "<hr><p>"
    qlink "eldre artikler…" "$action/$args" "dato=$GET_dato" "n=$n"
  fi
}

stikkord() {
  find -L stikkord -samefile "$1" | while read file; do
    local imp=${file#stikkord/}
    local ord=${imp%%/*}
    [ -z "$first" ] || echo -n " "
    echo -n "$ord"
    first=1
  done
}

stikk() {
  find -L stikkord -samefile "$1" -delete
  for ord in $2; do
    local path="stikkord/$ord/${1#artikler/}"
    umask 000
    mkdir -p -m 777 "$(dirname $path)"
    ln -s "../../../../../$1" "$path"
  done
}

skjema() {
  [ ! -f "$1" ] && echo "<p>finner ikke $1: <pre>$(xxd <<<$1)</pre>" && exit
  [ ! -w "$1" ] && echo "<p>du har ikke skrivetilgang" && exit
  echo "<form id=update-article method=post action='$BASE/oppdater/$1'>"
  lupin -f $1
  echo "<p><label>Stikkord:</label>"
  echo "<input type='text' name='stikkord' value='$(stikkord $1)'>"
  echo "<p>"
  echo "<input type='submit' value='Lagre'>"
  echo "<input name=delete type='submit' value='Slett'>"
  echo "<input name=publish type='submit' value='Publiser'>"
  [ -r "$1" ] && link "Vis" $(/opt/bin/pencode / <<<"vis/$1") preview
  echo "</form>"
  #echo "<p><b>$(info $1)</b>"
}

vis() {
  [ ! -f "$1" ] && echo "<p>finner ikke $1: <pre>$(xxd <<<$1)</pre>" && exit
  [ ! -r "$1" ] && echo "<p>du har ikke lesetilgang" && exit
  echo "<article>"
  lupin $1 | /opt/bin/refine
  echo "</article>"
}

lagre() {
  path=$(tr '-' '/' <<< $POST_publisert)
  slug=$(sed -e 's|[ /]|-|g' -e 's|[?:]||g' <<<$POST_title)
  [ -z "$slug" ] && error "Ugyldig overskrift"
  [ -f "artikler/$path/$slug.txt" ] && error "Artikkelen finnes allerede"
  umask 0000
  mkdir -p "artikler/$path"
  lupin -p -e - >"artikler/$path/$slug.txt"
  if [ -z "$POST_privat" ]; then
    chmod 660 "artikler/$path/$slug.txt"
  else
    chmod 640 "artikler/$path/$slug.txt"
  fi
  chgrp $POST_gruppe "artikler/$path/$slug.txt"
  irc "$(whoami) skriver ny artikkel: $POST_title"
  redirect "$BASE/rediger/artikler/$path/$slug.txt"
}

oppdater() {
  [ ! -f "$1" ] && error "finner ikke $1"
  [ ! -w "$1" ] && error "ikke skrivetilgang til $1"

  if [[ -n "$POST_delete" ]]; then
    rm "$1"
    redirect "$BASE"
  fi

  [ -z "$POST_title" ] && error "ingen overskrift"
  [ -z "$POST_stikkord" ] && error "ingen stikkord"

  stikk "$1" "$POST_stikkord"
  lupin -p -e - >$1
  irc "$(whoami) redigerte $POST_title"
  [ -n "$POST_publish" ] && chmod o+r "$1"
  # pushd /home/bie/code/maker >/dev/null; ./maker; popd >/dev/null
  redirect "$BASE/rediger/$1"
}

kort() {
  IFS=/. read -r type y m d hhmm slug ext <<< "$1"
  lupin -t $1
  echo "<p class='x'>$(byline $1), $y/$m/$d"
  [ -r "$1" ] && echo "·" && link "vis" $(/opt/bin/pencode / <<<"vis/$1")
  [ -w "$1" ] && echo "·" && link "rediger" $(/opt/bin/pencode / <<<"rediger/$1")
  lupin -s $1
}

velkommen() {
  echo "<blockquote><p>I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched C-beams glitter in the dark near the Tannhäuser Gate. All those moments will be lost in time, like tears in rain.<p>Time to die.</blockquote>"
}

forbered() {
  echo "<h2>skriv en artikkel…</h2>"
  echo "<form method=post action='$BASE/lagre'>"
  echo "<p><label>Overskrift:</label>"
  echo "<input type=text name=title size=24>"
  echo "<p><label>Dato:</label>"
  echo "<input type=date name=publisert value=$(date +%Y-%m-%d) size=10>"
  echo "<p><label>*</label>"
  echo "<select name='type'>"
  for type in blueprints/*.lua; do
    id=$(basename $type .lua)
    echo "<option value='$id'>$id</option>"
  done
  echo "</select>"
  echo "for"
  echo "<select name=gruppe>"
  for group in $available; do
    echo "<option>$group</option>" 
  done
  echo "</select>"
  echo "(<input type=checkbox name=privat>privat artikkel?)"
  echo "<p><label>*</label><input type=submit value='Forbered artikkel...'>"
  echo "</form>"
}

[ -f tears.rc ] && . tears.rc

umask 0022

groups=$(groups | tr " " "\n" | sort)
available=$(comm -12 - <(ls redaksjoner | sort) <<<"$groups")
#action=${PATH_INFO#$BASE/}
action=${PATH_INFO#/}
if [[ "$action" =~ "/" ]]; then
  args=${action#*/}
  action=${action%%/*}
fi
if [[ "$action" == rediger && $path == stikkord/* ]]; then
  redirect "$BASE/rediger/artikler/${path#stikkord/*/}"
fi
mappe="artikler"
[ -n "$GET_stikkord" ] && mappe="stikkord/$GET_stikkord"
kilde="$mappe/$(sed 's|-|/|g' <<<$GET_dato)"
finder="find -L $kilde -type f -not -name '*~'"
[ "$action" = gruppe ] && finder="$finder -group $args"
[ "$action" = ditt ] && finder="$finder -user $REMOTE_USER"
[ "$REQUEST_METHOD" = GET ] && eval $finder | meny
case $action in
  "") velkommen;;
  index.html|ditt|gruppe) liste;;
  skriv) forbered;;
  rediger) skjema $args;;
  vis) vis $args;;
  lagre) lagre;;
  oppdater) oppdater $args;;
  teatime) irc "$(whoami) <3 teatime"; echo "<p><img class='teatime' src='https://kyber.io/orz/src/1352063360909860.jpg'><br>";;
  spökvåningen) echo "<p><img src='https://kyber.io/orz/src/1360086359591352.jpg'>";;
  todo) echo "<pre>$(cat TODO)</pre>";;
esac
%>