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#!/bin/sh
# enhanced html form (eg for logins) filler (and manager) for uzbl.

# uses settings files like: $keydir/<domain>
# files contain lines like: !profile=<profile_name>
#                           <fieldname>(fieldtype): <value>
# profile_name should be replaced with a name that will tell sth about that profile
# fieldtype can be text or password - only for information pupropse (auto-generated) - don't change that

# user arg 1:
# edit: force editing the file (falls back to new if not found)
# new:  start with a new file.
# load: try to load from file into form
# add: try to add another profile to an existing file

# something else (or empty): if file not available: new, otherwise load.

# config dmenu colors and prompt
NB="#0f0f0f"
NF="#4e7093" 
SB="#003d7c" 
SF="#3a9bff" 
PROMPT="Choose profile"

keydir=${XDG_DATA_HOME:-$HOME/.local/share}/uzbl/dforms

[ -d "`dirname $keydir`" ] || exit 1
[ -d "$keydir" ] || mkdir "$keydir"

editor=${VISUAL}
if [[ -z ${editor} ]]; then
    editor='xterm -e vim'
fi

config=$1; shift
pid=$1;    shift
xid=$1;    shift
fifo=$1;   shift
socket=$1; shift
url=$1;    shift
title=$1;  shift
action=$1

[ -d $keydir ] || mkdir $keydir || exit 1

if [ "$action" != 'edit' -a  "$action" != 'new' -a "$action" != 'load' -a "$action" != 'add' ]
then
	action=new
	[[ -e $keydir/$domain ]] && action=load
elif [ "$action" == 'edit' ] && [[ ! -e $keydir/$domain ]]
then
	action=new
fi
domain=$(echo $url | sed 's/\(http\|https\):\/\/\([^\/]\+\)\/.*/\2/')

if [ "$action" = 'load' ]
then
	[[ -e $keydir/$domain ]] || exit 2
        if [[ `cat $keydir/$domain|grep "!profile"|wc -l` -gt 1 ]]
        then
            menu=`cat $keydir/$domain| \
                  sed -n 's/^!profile=\([^[:blank:]]\+\)/\1/p'`
            option=`echo -e -n "$menu"| dmenu -nb "${NB}" -nf "${NF}" -sb "${SB}" -sf "${SF}" -p "${PROMPT}"`
        fi

        cat $keydir/$domain | \
            sed -n -e "/^!profile=${option}/,/^!profile=/p" | \
            sed -n -e 's/\([^(]\+\)([^)]\+):[ ]*\([^[:blank:]]\+\)/js document.getElementsByName("\1")[0].value="\2";/p' | \
            sed -e 's/@/\\@/p' >> $fifo
else
	if [[ "$action" == 'new' || "$action" == 'add' ]]
	then
            if [ "$action" == 'new' ]
            then
                echo "!profile=NAME_THIS_PROFILE$RANDOM" > $keydir/$domain
            else
                echo "!profile=NAME_THIS_PROFILE$RANDOM" >> $keydir/$domain
            fi
            #
            # 2. and 3. line (tr -d and sed) are because, on gmail login for example, 
            # <input > tag is splited into lines
            # ex:
            # <input name="Email"
            #        type="text"
            #        value="">
            # So, tr removes all new lines, and sed inserts new line after each >
            # Next sed selects only <input> tags and only with type == "text" or == "password"
            # If type is first and name is second, then another sed will change their order
            # so the last sed will make output 
            #       text_from_the_name_attr(text or password): 
            #
            #       login(text):
            #       passwd(password):
            #
            curl -L "$url" | \
                tr -d '\n' | \
                sed 's/>/>\n/g' | \
                sed -n 's/.*\(<input[^>]\+>\).*/\1/;/type="\(password\|text\)"/Ip' | \
                sed 's/\(.*\)\(type="[^"]\+"\)\(.*\)\(name="[^"]\+"\)\(.*\)/\1\4\3\2\5/I' | \
                sed 's/.*name="\([^"]\+\)".*type="\([^"]\+\)".*/\1(\2): /I' >> $keydir/$domain
	fi
	[[ -e $keydir/$domain ]] || exit 3 #this should never happen, but you never know.
	$editor $keydir/$domain #TODO: if user aborts save in editor, the file is already overwritten
fi