From 7dc51d83483f5e5c8594a282c19c7ac5a34669d5 Mon Sep 17 00:00:00 2001
From: Adam Hovorka <adamhovorka@gmail.com>
Date: Fri, 5 Jun 2020 17:12:07 -0600
Subject: Add clipboard and completion to otp

---
 base/otp                | 52 +++++++++++++++++++++++++++++++++++++++----------
 base/zsh/completion.zsh | 11 +++++++++++
 2 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/base/otp b/base/otp
index e8c11f9..cf1f278 100755
--- a/base/otp
+++ b/base/otp
@@ -2,18 +2,21 @@
 
 shopt -s nullglob globstar
 
-PREFIX=${PASSWORD_STORE_DIR-~/.password-store}
-PREFIX="$PREFIX/otp"
-if [[ ! -d "$PREFIX" ]]; then
-  echo "Pass OTP does not exist" >&1
+die() {
+  echo "$@" >&2
   exit 1
+}
+
+PREFIX=${PASSWORD_STORE_DIR-~/.password-store}/otp
+[[ -d "$PREFIX" ]] || die "Pass OTP directory does not exist"
+
+if [[ "$1" == "-c" || "$1" == "--clip" ]]; then
+  CLIP=1
+  shift
 fi
 
 if [[ "$1" ]]; then
-  if [[ ! -f "$PREFIX/$1.gpg" ]]; then
-    echo "otp/$1 does not exist" >&1
-    exit 1
-  fi
+  [[ -f "$PREFIX/$1.gpg" ]] || die "otp/$1 does not exist"
   SITE="$1"
 else
   OTPFILES=( "$PREFIX"/**/*.gpg )
@@ -25,14 +28,34 @@ else
 fi
 
 URL="$(pass "otp/$SITE" 2>/dev/null | head -n1)"
-if [[ "$?" != "0" ]]; then echo "Authentication failed" >&2; exit 1; fi
-PERIOD="$(echo "$URL" | sed 's/^.*period=\([0-9]\+\).*$/\1/')"
+[[ "$?" == "0" ]] || die "Authentication failed"
+PERIOD="$(echo "$URL" | sed -n 's/^.*period=\([0-9]\+\).*$/\1/p')"
+if [[ -z "$PERIOD" ]]; then PERIOD=30; fi
 #BLOCKS=(" " "▏" "▎" "▍" "▌" "▋" "▊" "▉")
 BLOCKS=(" " "▎" "▌" "▊")
 TOTAL=$(( $PERIOD / 4 ))
 echo
 
+X_SELECTION="${PASSWORD_STORE_X_SELECTION:-clipboard}"
+
+getclip() {
+  [[ -n "$CLIP" ]] || return 0
+  if command -v termux-clipboard-get; then termux-clipboard-get
+  else xclip -o -selection "$X_SELECTION"; fi
+}
+
+setclip() {
+  [[ -n "$CLIP" ]] || return 0
+  if command -v termux-clipboard-set; then termux-clipboard-set
+  else xclip -selection "$X_SELECTION"; fi
+}
+
+BEFORE="$(getclip 2>/dev/null | base64)"
+
 function finish {
+  # Clipboard managers frequently write their history out in plaintext, so we axe it here:
+  qdbus org.kde.klipper /klipper org.kde.klipper.klipper.clearClipboardHistory &>/dev/null
+  echo "$BEFORE" | base64 -d | setclip
   echo -ne "\r"
   tput el
   tput cuu1
@@ -44,7 +67,13 @@ trap finish SIGINT SIGTERM SIGQUIT
 tput civis
 
 while :; do
+  OLDCODE="$CODE"
   CODE="$(pass otp "otp/$SITE" 2>/dev/null)"
+  if [[ "$CODE" != "$OLDCODE" ]]; then
+    echo -n "$CODE" | setclip ||
+      die "Error: Could not copy data to the clipboard"
+  fi
+
   WAIT=$(( $PERIOD - ( $(date +%s) % $PERIOD ) ))
   FULL=$(( $WAIT / 4 ))
   PARTIAL=$(( $WAIT % 4 ))
@@ -67,4 +96,7 @@ while :; do
   read -rsn1 -t.1 INP
   if [[ "$INP" = "q" || "$INP" = "Q" ||
     "$INP" = "$(echo -ne "\e")" ]]; then finish; fi
+
+  NOW="$(getclip | base64)"
+  [[ $NOW != $(echo -n "$CODE" | base64) ]] && BEFORE="$NOW"
 done
diff --git a/base/zsh/completion.zsh b/base/zsh/completion.zsh
index f9e452d..ae4d7c3 100644
--- a/base/zsh/completion.zsh
+++ b/base/zsh/completion.zsh
@@ -79,3 +79,14 @@ fi
 
 zstyle -e ':completion:*:(ssh|scp|sftp|rsh|rsync):hosts' hosts 'reply=(${=${${(f)"$(cat {/etc/ssh_,~/.ssh/known_}hosts(|2)(N) /dev/null)"}%%[# ]*}//,/ })'
 
+_otp() {
+  local IFS=$'\n'
+  local prefix
+  _arguments : \
+    "-c[put it on the clipboard]" \
+    "--clip[put it on the clipboard]"
+  zstyle -s ":completion:${curcontext}:" prefix prefix || prefix="${PASSWORD_STORE_DIR:-$HOME/.password-store}"
+  _values -C 'passwords' ${$(find -L "$prefix/otp" \( -name .git -o -name .gpg-id \) -prune -o -type f -print 2>/dev/null | sed -e "s#${prefix}/otp/\{0,1\}##" -e 's#\.gpg##' -e 's#\\#\\\\#' | sort):-""}
+}
+
+compdef _otp otp
-- 
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