From 459c966a711935bc50d8e0ff2826fb31ecec416e Mon Sep 17 00:00:00 2001
From: raulcano <raul.cano.argamasilla@gmail.com>
Date: Mon, 22 Mar 2021 19:36:21 -0300
Subject: [PATCH] adds service and command to download whitepaper (#2081)

---
 home.admin/00settingsMenuServices.sh          | 17 +++++
 home.admin/_commands.sh                       |  7 ++
 home.admin/config.scripts/bonus.whitepaper.sh | 75 +++++++++++++++++++
 3 files changed, 99 insertions(+)
 create mode 100644 home.admin/config.scripts/bonus.whitepaper.sh

diff --git a/home.admin/00settingsMenuServices.sh b/home.admin/00settingsMenuServices.sh
index b47cd5cc6..ee5faa922 100755
--- a/home.admin/00settingsMenuServices.sh
+++ b/home.admin/00settingsMenuServices.sh
@@ -20,6 +20,7 @@ if [ ${#pyblock} -eq 0 ]; then pyblock="off"; fi
 if [ ${#thunderhub} -eq 0 ]; then thunderhub="off"; fi
 if [ ${#sphinxrelay} -eq 0 ]; then sphinxrelay="off"; fi
 if [ ${#lit} -eq 0 ]; then lit="off"; fi
+if [ ${#whitepaper} -eq 0 ]; then whitepaper="off"; fi
 
 # show select dialog
 echo "run dialog ..."
@@ -38,6 +39,7 @@ OPTIONS+=(j 'JoinMarket' ${joinmarket})
 OPTIONS+=(o 'Balance of Satoshis' ${bos})
 OPTIONS+=(x 'Sphinx-Relay' ${sphinxrelay})
 OPTIONS+=(y 'PyBLOCK' ${pyblock})
+OPTIONS+=(w 'Download Bitcoin Whitepaper' ${whitepaper})
 
 CHOICES=$(dialog --title ' Additional Services ' --checklist ' use spacebar to activate/de-activate ' 20 45 12  "${OPTIONS[@]}" 2>&1 >/dev/tty)
 
@@ -393,6 +395,21 @@ else
   echo "Mempool Explorer Setting unchanged."
 fi
 
+# Whitepaper process choice
+choice="off"; check=$(echo "${CHOICES}" | grep -c "w")
+if [ ${check} -eq 1 ]; then choice="on"; fi
+if [ "${whitepaper}" != "${choice}" ]; then
+  echo "Whitepaper setting changed .."
+  anychange=1
+  sudo -u admin /home/admin/config.scripts/bonus.whitepaper.sh ${choice}
+  source /mnt/hdd/raspiblitz.conf
+  if [ "${whitepaper}" =  "on" ]; then
+    sudo -u admin /home/admin/config.scripts/bonus.whitepaper.sh menu
+  fi
+else
+  echo "Whitepaper setting unchanged."
+fi
+
 if [ ${anychange} -eq 0 ]; then
      dialog --msgbox "NOTHING CHANGED!\nUse Spacebar to check/uncheck services." 8 58
      exit 0
diff --git a/home.admin/_commands.sh b/home.admin/_commands.sh
index d6e050b93..2ab83f858 100755
--- a/home.admin/_commands.sh
+++ b/home.admin/_commands.sh
@@ -313,3 +313,10 @@ function notifyme() {
     content="${1:-Notified}"
     /home/admin/config.scripts/blitz.notify.sh send "${content}"
 }
+
+# command: whitepaper
+# downloads the whitepaper from the blockchain to /home/admin/bitcoin.pdf
+function whitepaper() {
+  cd /home/admin/config.scripts
+  ./bonus.whitepaper.sh on
+}
\ No newline at end of file
diff --git a/home.admin/config.scripts/bonus.whitepaper.sh b/home.admin/config.scripts/bonus.whitepaper.sh
new file mode 100644
index 000000000..7ab55a164
--- /dev/null
+++ b/home.admin/config.scripts/bonus.whitepaper.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+
+WhitepaperVersion="v0.1"
+DownloadPath="/home/admin/"
+WhitepaperFilename="bitcoin.pdf"
+
+# command info
+if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
+  echo "# config script to download the Bitcoin whitepaper to your Raspiblitz directly from the blockchain"
+  echo "# on: downloads the Whitepaper to $DownloadPath$WhitepaperFilename"
+  echo "# off: deletes the Whitepaper from $DownloadPath$WhitepaperFilename"
+  echo "# bonus.whitepaper.sh [on|off|menu]"
+  echo "# Whitepaper downloader script $WhitepaperVersion"
+  exit 1
+fi
+
+source /mnt/hdd/raspiblitz.conf
+
+# add default value to raspi config if needed
+if ! grep -Eq "^whitepaper=" /mnt/hdd/raspiblitz.conf; then
+  echo "whitepaper=off" >> /mnt/hdd/raspiblitz.conf
+fi
+
+# show info menu
+if [ "$1" = "menu" ]; then
+  dialog --title " Whitepaper Info" --msgbox "
+This service downloads Satoshi's Whitepaper directly from the blockchain.
+When enabled, the Whitepaper is downloaded to $DownloadPath$WhitepaperFilename
+When disabled, the Whitepaper is deleted from $DownloadPath$WhitepaperFilename
+Also, use the command 'whitepaper' from the command line to download the whitepaper directly
+" 10 75
+  exit 0
+fi
+
+
+# switch on
+if [ "$1" = "1" ] || [ "$1" = "on" ]; then
+
+    echo ""
+    echo "# ***"
+    echo "# Downloading the Whitepaper to $DownloadPath$WhitepaperFilename..."
+    echo "# ***"
+    echo ""
+
+    sudo -u bitcoin bitcoin-cli getblock 00000000000000ecbbff6bafb7efa2f7df05b227d5c73dca8f2635af32a2e949 0 | tail -c+92167 | for ((o=0;o<946;++o)) ; do read -rN420 x ; echo -n ${x::130}${x:132:130}${x:264:130} ; done | xxd -r -p | tail -c+9 | head -c184292 > $DownloadPath/$WhitepaperFilename
+   
+   # setting value in raspi blitz config
+    sudo sed -i "s/^whitepaper=.*/whitepaper=on/g" /mnt/hdd/raspiblitz.conf
+   
+    echo "# OK - Whitepaper downloaded to $DownloadPath$WhitepaperFilename"
+
+  exit 0
+fi
+
+# switch off
+if [ "$1" = "0" ] || [ "$1" = "off" ]; then
+  isInstalled=1
+  if [ ${isInstalled} -eq 1 ]; then
+    
+    echo ""
+    echo "# ***"
+    echo "# Removing the Whitepaper from $DownloadPath$WhitepaperFilename..."
+    echo "# ***"
+    echo ""
+    # setting value in raspi blitz config
+    sudo sed -i "s/^whitepaper=.*/whitepaper=off/g" /mnt/hdd/raspiblitz.conf
+    
+    rm $DownloadPath/$WhitepaperFilename
+
+    echo "# OK - Whitepaper removed."
+  else
+    echo "# The Whitepaper has not been downloaded yet."
+  fi
+  exit 0
+fi
\ No newline at end of file