ufw-tools/ufw

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#!/usr/bin/env bash
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# Copyright (c) 2012 fbt <fbt@fleshless.org>
#
# About:
# A simple upload script for ZFH (http://zerofiles.org)
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_self="${0##*/}"
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_cat() {
while read; do
printf '%s\n' "$REPLY"
done
}
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is_url() {
[[ "$1" =~ $cfg_url_regex ]]
}
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msg() { printf '%s\n' "[ufw] $1"; }
err() { msg "(error) $1" >&2; }
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usage() {
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_cat <<- EOF
Usage: ${_self} [-RsF] [-D num] [file/url]"
Flags:
-R # Remove the file after uploading.
-s # Make a screenshot and upload it instead of a file.
-F # Make a fullscreen shot instead of prompting for a window/area. Implies -s.
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-d # Supply a dexcription.
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-D <num> # Delay the shot by <num> seconds.
-p # Make the file private. Requires \$secret to be set in the config.
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-u # Generate a shortlink from URL.
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-m # Maximum filesize (takes K, M and G suffixes).
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Config options (~/.config/ufw):
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secret # Your personal token. Get it at https://zfh.so/settings_form
cfg_screenshot_ext # Screenshot file type, used by scrot.
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cfg_max_filesize # Maximum filesize in megabytes.
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# Others are self-explanatory:
cfg_url_regex
cfg_tmp_dir
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cfg_service_url
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EOF
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}
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ensure_env() {
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for i in "$cfg_tmp_dir"; do
[[ -d "$i" ]] || { mkdir -p "$i"; }
done
}
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get_file_hash() {
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read file_hash _ < <( sha1sum "$1" )
}
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get_max_filesize() {
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if [[ $cfg_max_filesize =~ ^[0-9]+[BKMG]?$ ]]; then
max_filesize_base="${cfg_max_filesize//[BKMG]/}"
case "$cfg_max_filesize" in
*K) max_filesize_bytes=$(( max_filesize_base * 1024 ));;
*M) max_filesize_bytes=$(( max_filesize_base * 1024 * 1024 ));;
*G) max_filesize_bytes=$(( max_filesize_base * 1024 * 1024 * 1024 ));;
*) max_filesize_bytes=$max_filesize_base;;
esac
else
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err "Wrong cfg_max_filesize: $cfg_max_filesize"
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return 1
fi
}
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upload() {
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if (( flag_scrot )); then
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flag_rm=1
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file=$(take_screenshot) || { return 1; }
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else
(( $# )) || {
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usage
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return 1
}
target="$1"
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if is_url "$target"; then
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flag_rm=1
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file=$(_mktemp "$cfg_tmp_dir")
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get_max_filesize || { return 1; }
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curl --max-filesize "$max_filesize_bytes" -skL "$target" > "$file"
curl_result=$?
if (( curl_result )); then
case "$curl_result" in
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63) err "File exceeds cfg_max_filesize";;
*) err "Could not download file.";;
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esac
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return 1
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fi
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else
file="$target"
[[ -f "$file" ]] || {
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err "No such file: ${file}"
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return 1
}
fi
fi
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get_file_hash "$file"
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file_url=$( curl -fsL "${cfg_service_url}/api?mode=file&file=${file_hash}&direct=1&short=${flag_shortlink}" )
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if ! (( $? )); then
printf '%s\n' "$file_url"
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else
curl -sL \
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-F file="@$file" \
-F upload_mode='api' \
-F flag_private="$flag_private" \
-F short="$flag_shortlink" \
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-F description="$description" \
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-F secret="$secret" \
-F submit="" \
-A 'zerofiles.org upload script' \
"$cfg_service_url/upload"
fi
if (( $? )); then
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err 'Something has gone wrong with the upload.'
return 7
else
if (( flag_rm )); then
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msg "Removing file: $file"
rm "$file"
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fi
fi
}
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get_shortlink() {
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declare url=$1
if ! curl -fsL "$cfg_service_url/api?mode=url_add&url=${url}&raw=1"; then
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err 'Something went wrong!'
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fi
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}
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take_screenshot() {
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declare tmp_file
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[[ "$scrot_exec" ]] || { scrot_exec=$(type -P scrot); }
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[[ "$scrot_exec" ]] || {
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err "Please install scrot to use this function"
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return 1
}
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(( "$flag_scrot_fullscreen" )) || { scrot_args+=( '-s' ); }
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[[ "$cfg_scrot_delay" ]] && { scrot_args+=( "-d $cfg_scrot_delay" ); }
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tmp_file="$(_mktemp "${cfg_tmp_dir}" ".${cfg_screenshot_ext}")"
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scrot "${scrot_args[@]}" "$tmp_file" || {
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err "Failed to take a screenshot."
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return 1
}
printf '%s\n' "$tmp_file"
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}
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_mktemp() {
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declare tmp_file_name tmp_file_name_extra="$2" tmp_dir="$1"
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[[ -d "$tmp_dir" ]] || {
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err "${tmp_dir} does not exist or is not a directory."
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return 1
}
until [[ ! -e "${tmp_dir}/${tmp_file_name}" ]]; do
tmp_file_name="${RANDOM}${RANDOM}${tmp_file_name_extra}"
done
printf '%s\n' "${tmp_dir}/${tmp_file_name}"
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}
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get_my_ip() {
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my_ip=$( curl -fsL https://zfh.so/ip )
if ! (( $? )); then
printf '%s\n' $my_ip
fi
}
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set_argv() {
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declare arg opt c
declare -g argv
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while (( $# )); do
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unset -v arg opt c
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case "$1" in
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(--) argv+=( "$1" ); break;;
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(--*)
IFS='=' read arg opt <<< "$1"
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argv+=( "$arg" )
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[[ "$opt" ]] && {
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argv+=( "$opt" )
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}
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;;
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(-*)
while read -n1 c
do
case "$c" in
-|'') :;;
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*) argv+=( "-$c" );;
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esac
done <<< "$1"
;;
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(*) argv+=( "$1" );;
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esac
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shift
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done
}
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main() {
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declare args file target flag_private flag_rm flag_scrot flag_scrot_fullscreen cfg_scrot_delay
declare flag_shortlink=0
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# Defaults for XDG
if ! [[ "$XDG_RUNTIME_DIR" ]]; then
XDG_RUNTIME_DIR="/run/user/$UID"
fi
if ! [[ "$XDG_CONFIG_DIR" ]]; then
XDG_CONFIG_DIR="$HOME/.config"
fi
cfg_url_regex='^[A-Za-z]([A-Za-z0-9+.-]+)?://.+'
cfg_tmp_dir="$XDG_RUNTIME_DIR/ufw"; TEMPDIR="$cfg_tmp_dir"
cfg_service_url='https://8fw.me'
cfg_screenshot_ext='png'
cfg_max_filesize='200M'
if [[ -f "$HOME/.suprc" ]]; then
printf 'Found legacy configfile, moving...\n' >&2
mv "$HOME/.suprc" "$XDG_CONFIG_DIR/ufw"
fi
if [[ -f "$XDG_CONFIG_DIR/ufw" ]]; then
if ! source "$XDG_CONFIG_DIR/ufw"; then
printf 'Failed to source configuration file: %s\n' "$XDG_CONFIG_DIR/ufw"
return $?
fi
fi
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while [[ "$1" ]]; do
case "$1" in
-p|--private) flag_private='true';;
-R|--remove-file) flag_rm='1';;
-s|--screenshot) flag_scrot='1';;
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-d|--description) description="$2"; shift;;
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-D|--screenshot-delay) cfg_scrot_delay="$2"; shift;;
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-F|--fullscreen)
flag_scrot='1'
flag_scrot_fullscreen='1'
;;
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-i|--my-ip) action='getmyip';;
-S|--short) flag_shortlink='1';;
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-u|--url) action='url';;
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-h|--help|--usage) usage; return;;
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--) shift; break;;
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*) break;;
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esac
shift
done
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ensure_env
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case "${action:-upload}" in
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upload) upload "$1";;
url) get_shortlink "$1";;
getmyip) get_my_ip;;
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esac
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}
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set_argv "$@"
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main "${argv[@]}"