commit e26f572bad660d2c4a1ec1d5be941766bfadbda8 parent c4dc8cbcb144bb4c99a91d8e914dee426647d6e2 Author: Anders Damsgaard <anders@adamsgaard.dk> Date: Wed, 11 Jul 2018 11:34:26 -0400 Add cht.sh client Diffstat:
| A | links/bin/cht.sh | | | 389 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 389 insertions(+), 0 deletions(-)
diff --git a/links/bin/cht.sh b/links/bin/cht.sh @@ -0,0 +1,389 @@ +#!/usr/bin/env bash +# +# [X] open section +# [X] one shot mode +# [X] usage info +# [X] dependencies check +# [X] help +# [X] yank/y/copy/c +# [X] Y/C +# [X] eof problem +# [X] less +# [X] stealth mode +# +# here are several examples for the stealth mode: +# +# zip lists +# list permutation +# random list element +# reverse a list +# read json from file +# append string to a file +# run process in background +# count words in text counter +# group elements list + +__CHTSH_VERSION=4 +__CHTSH_DATETIME="2018-07-08 22:26:46 +0200" + +export LESSSECURE=1 +STEALTH_MAX_SELECTION_LENGTH=5 + +case "$OSTYPE" in + darwin*) is_macos=yes ;; + *) is_macos=no ;; +esac + +get_query_options() +{ + local query="$*" + if [ -n "$CHTSH_QUERY_OPTIONS" ]; then + if [[ $query == *\?* ]]; then + query="$query&${CHTSH_QUERY_OPTIONS}" + else + query="$query?${CHTSH_QUERY_OPTIONS}" + fi + fi + echo "$query" +} + +do_query() +{ + local query="$*" + local b_opts=() + + if [ -e "$HOME/.cht.sh/id" ]; then + b_opts=(-b "$HOME/.cht.sh/id") + fi + + curl "${b_opts[@]}" -s https://cht.sh/"$(get_query_options $query)" > "$TMP1" + + if [ -z "$lines" ] || [ "$(wc -l "$TMP1" | awk '{print $1}')" -lt "$lines" ]; then + cat "$TMP1" + else + less -R "$TMP1" + fi +} + +prepare_query() +{ + local section="$1"; shift + local input="$1"; shift + local arguments="$1"; shift + + local query + if [ -z "$section" ] || [[ "$input" = /* ]]; then + query=$(echo "$input" | sed 's@ @/@; s@ @+@g') + else + query=$(echo "$section/$input" | sed 's@ @+@g') + fi + + [ -n "$arguments" ] && arguments="?$arguments" + echo "$query$arguments" +} + +get_list_of_sections() +{ + curl -s https://cht.sh/:list | grep -v '/.*/' | grep '/$' +} + +if [ -e "$HOME"/.cht.sh/cht.sh.conf ]; then + # shellcheck disable=SC1090,SC2002 + source <( cat "$HOME"/.cht.sh/cht.sh.conf | sed 's/#.*//' | grep -xv '' | sed s/^/CHTSH_/ ) >& /dev/null +fi + +if [ "$1" == --read ]; then + read -r a || a=exit + echo $a + exit 0 +elif [ "$1" == --help ] || [ -z "$1" ]; then + cat <<EOF +Usage: + + ${0##*/} --help show this help + ${0##*/} --shell [LANG] shell mode (open LANG if specified) + ${0##*/} QUERY process QUERY and exit +EOF + exit 0 +elif [ "$1" == --shell ]; then + shell_mode=yes + shift +fi + +prompt="cht.sh" + +prompt="cht.sh" +opts="" +input="" +for o; do + if [[ "$o" == -* ]]; then + opts="${opts}${o#-}" + else + input="$input $o" + fi +done +query=$(echo "$input" | sed 's@ *$@@; s@^ *@@; s@ @/@; s@ @+@g') + +if [ "$shell_mode" != yes ]; then + curl -s https://cht.sh/"$(get_query_options "$query")" + exit 0 +else + new_section="$1" + valid_sections=($(get_list_of_sections)) + valid=no; for q in "${valid_sections[@]}"; do [[ "$q" == $new_section/ ]] && { valid=yes; break; }; done + + if [[ $valid = yes ]]; then + section="$new_section" + this_query="$(echo "$input" | sed 's@ *[^ ]* *@@')" + this_prompt="\033[0;32mcht.sh/$section>\033[0m " + else + this_query="$input" + this_prompt="\033[0;32mcht.sh>\033[0m " + fi + if [ -n "$this_query" ] && [ -z "$CHEATSH_RESTART" ]; then + printf "$this_prompt$this_query\n" + curl -s https://cht.sh/"$(get_query_options "$query")" + fi +fi + +if [ "$is_macos" != yes ]; then + which xsel >& /dev/null || { echo 'DEPENDENCY: please install "xsel" for "copy"' >&2; } +fi +which rlwrap >& /dev/null || { echo 'DEPENDENCY: install "rlwrap" to use cht.sh in the shell mode' >&2; exit 1; } +which curl >& /dev/null || { echo 'DEPENDENCY: install "curl" to use cht.sh' >&2; exit 1; } + +mkdir -p "$HOME/.cht.sh/" +lines=$(tput lines) + +TMP1=$(mktemp /tmp/cht.sh.XXXXXXXXXXXXX) +trap 'rm -f $TMP1 $TMP2' EXIT +trap 'true' INT + +if ! [ -e "$HOME/.cht.sh/.hushlogin" ] && [ -z "$this_query" ]; then + echo "type 'help' for the cht.sh shell help" +fi + +while true; do + if [ "$section" != "" ]; then + full_prompt="$prompt/$section> " + else + full_prompt="$prompt> " + fi + + input=$( + rlwrap -H $HOME/.cht.sh/history -pgreen -C cht.sh -S "$full_prompt" bash "$0" --read | sed 's/ *#.*//' + ) + + case "$input" in + '?'|h|help) + cat <<EOF +help - show this help +hush - do not show the 'help' string at start anymore +cd LANG - change the language context +copy - copy the last answer in the clipboard (aliases: yank, y, c) +ccopy - copy the last answer w/o comments (cut comments; aliases: cc, Y, C) +exit - exit the cheat shell (aliases: quit, ^D) +id [ID] - set/show an unique session id ("reset" to reset, "remove" to remove) +stealth - stealth mode (automatic queries for selected text) +update - self update (only if the scriptfile is writeable) +version - show current cht.sh version +/:help - service help +QUERY - space ceparated query staring (examples are below) + cht.sh> python zip list + cht.sh/python> zip list + cht.sh/go> /python zip list +EOF + continue + ;; + hush) + mkdir -p $HOME/.cht.sh/ && touch $HOME/.cht.sh/.hushlogin && echo "Initial 'use help' message was disabled" + continue + ;; + cd) + section="" + continue + ;; + "cd "*) + new_section=$(echo "$input" | sed 's/cd //; s/ .*//; s@/\+$@@; s@^/\+@@') + if [ "$new_section" = "" ] || [ "$new_section" = ".." ] || [ "$new_section" = / ]; then + section="" + else + valid_sections=($(get_list_of_sections)) + valid=no; for q in "${valid_sections[@]}"; do [[ "$q" == $new_section/ ]] && { valid=yes; break; }; done + if [ "$valid" = no ]; then + echo "Invalid section: $new_section" + echo "Valid sections:" + echo "${valid_sections[@]}" | xargs printf "%-10s\n" | tr ' ' . | xargs -n 10 | sed 's/\./ /g; s/^/ /' + continue + else + section="$new_section" + fi + fi + continue + ;; + exit|quit) + break + ;; + copy|yank|c|y) + if [ -z "$DISPLAY" ]; then + echo copy: supported only in the Desktop version + continue + fi + if [ -z "$input" ]; then + echo copy: Make at least one query first. + continue + else + curl -s https://cht.sh/"$(get_query_options "$query"?T)" > "$TMP1" + if [ "$is_macos" != yes ]; then + xsel -i < "$TMP1" + else + cat "$TMP1" | pbcopy + fi + echo "copy: $(wc -l "$TMP1" | awk '{print $1}') lines copied to the selection" + continue + fi + ;; + ccopy|cc|C|Y) + if [ -z "$DISPLAY" ]; then + echo copy: supported only in the Desktop version + continue + fi + if [ -z "$input" ]; then + echo copy: Make at least one query first. + continue + else + curl -s https://cht.sh/"$(get_query_options "$query"?TQ)" > "$TMP1" + if [ "$is_macos" != yes ]; then + xsel -i < "$TMP1" + else + cat "$TMP1" | pbcopy + fi + echo "copy: $(wc -l "$TMP1" | awk '{print $1}') lines copied to the selection" + continue + fi + ;; + id|"id "*) + id_file="$HOME/.cht.sh/id" + + if [ "$input" = id ]; then + new_id="" + else + new_id=$(echo "$input" | sed 's/id \+//; s/ *$//; s/ /+/g') + fi + if [ "$new_id" = remove ]; then + if [ -e "$id_file" ]; then + rm -f "$id_file" && echo "id is removed" + else + echo "id was not set, so you can't remove it" + fi + continue + fi + if [ -n "$new_id" ] && [ "$new_id" != reset ] && [ "$(echo $new_id | wc -c)" -lt 16 ]; then + echo "ERROR: $new_id: Too short id. Minimal id length is 16. Use 'id reset' for a random id" + continue + fi + if [ -z "$new_id" ]; then + # if new_id is not specified check if we have some id already + # if yes, just show it + # if not, generate a new id + if [ -e "$id_file" ]; then + echo $(cat "$id_file" | awk '{if ($6 == "id") print $NF}' | head -1) + continue + else + new_id=reset + fi + fi + if [ "$new_id" = reset ]; then + new_id="$(cat /dev/urandom 2> /dev/null | env LC_CTYPE=C tr -cd 'a-f0-9' 2> /dev/null | head -c 32)" + else + echo WARNING: if someone gueses your id, he can read your cht.sh search history + fi + if [ -e "$id_file" ] && grep -q '\tid\t[^\t]\+$' "$id_file" 2> /dev/null; then + sed -i 's/\tid\t[^\t]\+$/ id '"$new_id"'/' "$id_file" + else + if ! [ -e "$id_file" ]; then + printf '#\n\n' > "$id_file" + fi + printf ".cht.sh\tTRUE\t/\tTRUE\t0\tid\t$new_id\n" >> "$id_file" + fi + echo "$new_id" + continue + ;; + stealth|"stealth "*) + if [ "$input" != stealth ]; then + arguments=$(echo "$input" | sed 's/stealth //; s/ /\&/') + fi + trap break SIGINT + if [ "$is_macos" == yes ]; then + past=$(pbpaste) + else + past=$(xsel -o) + fi + printf "\033[0;31mstealth:\033[0m you are in the stealth mode; select any text in any window for a query\n" + printf "\033[0;31mstealth:\033[0m selections longer than $STEALTH_MAX_SELECTION_LENGTH words are ignored\n" + if [ -n "$arguments" ]; then + printf "\033[0;31mstealth:\033[0m query arguments: ?$arguments\n" + fi + printf "\033[0;31mstealth:\033[0m use ^C to leave this mode\n" + while true; do + if [ $is_macos == yes ]; then + current=$(pbpaste) + else + current=$(xsel -o) + fi + if [ "$past" != "$current" ]; then + past=$current + current_text="$(echo $current | tr -c '[a-zA-Z0-9]' ' ')" + if [ $(echo $current_text | wc -w) -gt "$STEALTH_MAX_SELECTION_LENGTH" ]; then + echo "\033[0;31mstealth:\033[0m selection length is longer than $STEALTH_MAX_SELECTION_LENGTH words; ignoring" + continue + else + printf "\n\033[0;31mstealth: \033[7m $current_text\033[0m\n" + query=$(prepare_query "$section" "$current_text" "$arguments") + do_query "$query" + fi + fi + sleep 1; + done + trap - SIGINT + continue + ;; + update) + [ -w "$0" ] || { echo "The script is readonly; please update manually: curl -s https://cht.sh/:bash | sudo tee $0"; continue; } + TMP2=$(mktemp /tmp/cht.sh.XXXXXXXXXXXXX) + curl -s https://cht.sh/:cht.sh > "$TMP2" + if ! cmp "$0" "$TMP2" > /dev/null 2>&1; then + if grep -q ^__CHTSH_VERSION= "$TMP2"; then + args=(--shell) + [ -n "$section" ] && args=("${args[@]}" "$section") + cp "$TMP2" "$0" && echo "Updated. Restarting..." && rm "$TMP2" && CHEATSH_RESTART=1 exec "$0" "${args[@]}" + else + echo "Something went wrong. Please update manually" + fi + else + echo "cht.sh is up to date. No update needed" + fi + rm -f "$TMP2" > /dev/null 2>&1 + continue + ;; + version) + echo "cht.sh version $__CHTSH_VERSION of $__CHTSH_DATETIME; installed at: $(stat -c %y "$0" | sed 's@\..* @ @')" + TMP2=$(mktemp /tmp/cht.sh.XXXXXXXXXXXXX) + if curl -s https://cht.sh/:cht.sh > "$TMP2"; then + if ! cmp "$0" "$TMP2" > /dev/null 2>&1; then + echo "Update needed (type 'update' for that)". + else + echo "Up to date. No update needed" + fi + fi + rm -f "$TMP2" > /dev/null 2>&1 + continue + ;; + "") + continue + ;; + esac + + query=$(prepare_query "$section" "$input") + do_query "$query" +done