#!/bin/sh
+# $0 [server] ([selector]) ([port]) ([mode])
+# server: the gopher server to dig to
+# selector: the gopher selector (default is empty)
+# port: the port to use (default is 70)
+# mode: the filetype mode (default depends upon selector)
+# 0: plain text
+# 1: menu (dir-like)
+# ...
+# download: fake mode to download the result without changes
+
+# ENV variables:
+# USE_DIALOG: force the usage of the command 'dialog'
+# : true if dialog is found
+# 0 : do not
+# 1 : force the use of dialog
+# LINK_COLOR: escape sequences colour (def: 2)
+# - : means no escape sequence
+# 1 : means colour 1
+# 2 : means colour 2
+# [...]
+# INVERT : invert the output for image viewing (for white backgrounds)
+# 0 : do not invert (default)
+# 1 : invert
+
SERVER="$1"
SELECTOR="$2"
PORT="$3"
exit 2
fi
-# $0 [FILE]
+# can be "-" for no escape sequences
+[ "$LINK_COLOR" = "" ] && LINK_COLOR=2
+
+# Start and end link tags
+SL=
+EL=
+if [ "$LINK_COLOR" != "-" ]; then
+ SL="`tput setf $LINK_COLOR``tput setaf $LINK_COLOR`"
+ EL="`tput init`"
+ export LESS="${LESS}-R"
+fi
+
+# 'dialog' or text
+if [ "$USE_DIALOG" = "" ]; then
+ if dialog --help >/dev/null 2>&1; then
+ USE_DIALOG=1
+ else
+ USE_DIALOG=0
+ fi
+fi
+
+# Invert image viewer
+if [ "$INVERT" = 1 ]; then
+ INVERT="--invert"
+else
+ INVERT=
+fi
+
+PREFIX="[0-9hIg+]"
+
+# $0 [FILE] (dialog)
+# Display a gopher menu for the given resource
cat_menu() {
i=0
- cat "$1" | grep '^[i0-9]' | while read ln; do
- ln="`echo "$ln" | cut -f1`"
+ cat "$1" | grep "^i\|^$PREFIX" | while read ln; do
if echo "$ln" | grep "^i" >/dev/null 2>&1; then
- echo "$ln" | sed "s:^.: :g"
- elif echo "$ln" | grep "^[0-9]" >/dev/null 2>&1; then
+ if [ "$2" != dialog ]; then
+ echo "$ln" | sed "s:^.\([^\t]*\).*$: \1:g"
+ else
+ echo "$ln" | sed 's:":'"''"':g;s:^.\([^\t]*\).*$:" " "\1":g'
+ fi
+ elif echo "$ln" | grep "^$PREFIX" >/dev/null 2>&1; then
i=`expr $i + 1`
- i=`printf %2.f $i`
+ [ $i -le 9 ] && i=0$i
field="`echo "$ln" | cut -c1`"
case "$field" in
0) typ='TXT';;
- 1) typ='DIR';;
- 7) typ='SRH';;
- 8) typ='TEL';;
- *) typ='???';;
+ 1) typ='DIR';; # menu, actually
+ 7) typ='(?)';; # query
+ 8) typ='TEL';; # TELnet (not TELephone)
+ h) typ='WEB';; # HTML
+ I) typ='IMG';;
+ g) typ='GIF';;
+ +) typ='SVR';; # redundant server
+ *) typ='!!!';;
esac
- echo "$ln" | sed "s:^.:$typ $i :g"
- #else
- # Bad line
+ if [ "$2" != dialog ]; then
+ echo "$ln" | sed "s:^.\\([^\t]*\\).*:$typ $i $SL\\1$EL:g"
+ else
+ echo "$ln" | sed "s:"'"'":'':g;s:^.\\([^\t]*\\).*:"'"'"$typ $i"'"'" "'"\1"'":g"
+ fi
fi
done
}
-# $0 [FILE]
-choices() {
- i=0
- cat "$1" | grep '^[0-9]' | while read choice; do
- i=`expr $i + 1`
- i=`printf %2.f $i`
-
- echo "$i --> $choice"
- done
-}
-
# $0 [FILE] [INDEX] [FIELD]
+# Get a field from the given-by-index link in FILE
+#
# Fields:
# 1 = type/name
# 2 = selector
# 3 = server
# 4 = port
getsel() {
- cat "$1" | grep '^[0-9]' | tail -n+"$2" | head -n 1 | cut -f"$3"
+ cat "$1" | grep "^$PREFIX" | tail -n+"$2" | head -n 1 | cut -f"$3"
}
-tmp="`mktemp gofetch.current_page.XXXXX`"
+# Save page content to 'tmp' file
+tmp="`mktemp -t gofetch.current_page.XXXXXX`"
finish() {
- rm -rf "$tmp"
+ rm -rf "$tmp" "$tmp.jpg" "$tmp.menu" "$tmp.choice"
}
trap finish EXIT
echo "$SELECTOR" | nc "$SERVER" "$PORT" > "$tmp"
fi
+# Process page content
case "$MODE" in
+download)
+ # Special, fake mode, only from top-level
+ cat "$tmp"
+;;
0)
cat "$tmp" | less
;;
-1)
+1|+)
CHOICE=start
while [ "$CHOICE" != "" ]; do
- cat_menu "$tmp" | less
- read -p "[$SELECTOR]: " CHOICE
+ if [ "$USE_DIALOG" = 1 ]; then
+ > "$tmp.menu"
+ cat_menu "$tmp" dialog | while read ln; do
+ echo -n " $ln" >> "$tmp.menu"
+ done
+ [ "$LINES" = "" ] && LINES=`tput lines`
+ [ "$COLUMNS" = "" ] && COLUMNS=`tput cols`
+ title="$SERVER: $SELECTOR"
+ dialog --extra-button --extra-label Back \
+ --cancel-label Exit \
+ --no-shadow \
+ --menu "$title" \
+ "$LINES" "$COLUMNS" "$LINES" \
+ --file "$tmp.menu" 2>"$tmp.choice"
+ val=$?
+ clear
+
+ if [ $val = 3 ]; then
+ CHOICE=""
+ elif [ $val = 1 ]; then
+ CHOICE="q"
+ else
+ CHOICE="`cat "$tmp.choice" | cut -c5-`"
+ fi
+
+ rm "$tmp.menu"
+ rm "$tmp.choice"
+ else
+ cat_menu "$tmp" | less
+ read -p "[$SELECTOR]: " CHOICE
+ fi
+
+ [ "$CHOICE" = q ] && exit 255 # force-quit
index="`expr 1 \* "$CHOICE" 2>/dev/null`"
if [ "$index" != "" ]; then
goto_server="`getsel "$tmp" $index 3`"
goto_port="`getsel "$tmp" $index 4`"
goto_mode="`getsel "$tmp" $index 1 | cut -c1`"
sh "$0" "$goto_server" "$goto_sel" "$goto_port" "$goto_mode"
+ [ $? = 255 ] && exit 255 # force-quit
fi
done
;;
9)
echo "<BINARY FILE>" | less
;;
+g|I)
+ if img2aa --help >/dev/null 2>&1; then
+ img2aa --mode=DITHERING \
+ $INVERT \
+ --width=74 "$tmp" | less
+ elif jp2a -h >/dev/null 2>&1; then
+ if convert -h >/dev/null 2>&1; then
+ convert "$tmp" "$tmp.jpg"
+ jp2a --border --chars=" .-+=o8#"\
+ $INVERT \
+ --width=74 "$tmp.jpg" | less
+ else
+ echo "required program not found to view images: convert" \
+ | less
+ fi
+ else
+ echo "required program not found to view images:" \
+ jp2a or img2aa | less
+ fi
+;;
*)
echo "unknwon selector mode: <$MODE>" | less
exit 3
;;
esac
+
git://git.nikiroo.be / gofetch.git / blobdiff