introduce a upload prepare & check script

home.admin/config.scripts/blitz.upload.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# command info
+if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ]; then
+ echo "# use to prepare & check scp or web file upload to RaspiBlitz"
+ echo "# blitz.upload.sh prepare-upload"
+ echo "# blitz.upload.sh check-upload ?[scb|lnd-rescue]"
+ exit 0
+fi
+
+# get local ip
+source <(/home/admin/config.scripts/internet.sh status local)
+
+# set upload path
+if [ -d "/mnt/hdd/temp" ]; then
+  # HDD with temp directory is connected - the use it
+  defaultUploadPath="/mnt/hdd/temp/upload"
+else
+  # fallback if no HDD is connected
+  defaultUploadPath="/home/bitcoin/temp/upload"
+fi
+
+
+# 1st PRAMETER action
+action="$1"
+
+if [ ${action} = "prepare-upload" ]; then
+
+  # make sure that temp directory exists, is clear and can be written by user bitcoin
+  sudo mkdir -p ${defaultUploadPath} 2>/dev/null
+  sudo rm ${defaultUploadPath}/* 2>/dev/null
+  sudo chown -R bitcoin:bitcoin ${defaultUploadPath} 2>/dev/null
+
+  echo "localip='${localip}'"
+  echo "defaultUploadPath='${defaultUploadPath}'"
+  exit 0
+fi
+
+if [ ${action} = "check-upload" ]; then
+
+  # 2nd PARAMETER is type of upload (optional)
+  type=$2
+  echo "type='${type}'"
+
+  # check if there to less or to many files in upload directory
+  countFiles=$(ls ${defaultUploadPath} | wc -l 2>/dev/null)
+  if [ ${countFiles} -lt 1 ]; then
+    sudo rm ${defaultUploadPath}/* 2>/dev/null
+    echo "error='not-found'"
+    exit 1
+  fi
+  if [ ${countFiles} -gt 1 ]; then
+    sudo rm ${defaultUploadPath}/* 2>/dev/null
+    echo "error='multiple'"
+    exit 1
+  fi
+
+  # get the file uploaded (full path)
+  filename=$(sudo ls ${defaultUploadPath}/*.*)
+  echo "# filename(${filename})"
+
+  # check of size >0
+  byteSize=$(ls -l ${filename} | awk '{print $5}')
+  echo "# byteSize(${byteSize})"
+  if [ "${byteSize}" == "" ] || [ "${byteSize}" == "0" ]; then
+      sudo rm ${defaultUploadPath}/* 2>/dev/null
+      echo "error='invalid'"
+      echo "errorDetail='invalid byte size: ${byteSize}'"
+      exit 1
+  fi
+
+  # SCB check if file looks valid
+  if [ "${type}" == "scb" ]; then
+
+    # general filename check
+    typeCount=$(sudo ls ${defaultUploadPath}/*.backup 2>/dev/null | grep -c '.backup')
+    if [ "${typeCount}" != "1" ]; then
+      sudo rm ${defaultUploadPath}/* 2>/dev/null
+      echo "error='invalid'"
+      echo "errorDetail='not *.backup'"
+      exit 1
+    fi
+
+  fi
+
+  # LND-RESCUE check if file looks valid
+  if [ "${type}" == "lnd-rescue" ]; then
+
+    # general filename check
+    typeCount=$(sudo ls ${defaultUploadPath}/lnd-rescue-*.tar.gz 2>/dev/null | grep -c 'lnd-rescue')
+    if [ "${typeCount}" != "1" ]; then
+      sudo rm ${defaultUploadPath}/* 2>/dev/null
+      echo "error='invalid'"
+      echo "errorDetail='not lnd-rescue-*.tar.gz'"
+      exit 1
+    fi
+
+    # checksum test
+    md5checksum=$(md5sum ${filename} | head -n1 | cut -d " " -f1)
+    echo "# filename(${md5checksum})"
+    isCorrect=$(echo ${filename} | grep -c ${md5checksum})
+    if [ "${isCorrect}" != "1" ]; then
+      sudo rm ${defaultUploadPath}/* 2>/dev/null
+      echo "error='invalid'"
+      echo "errorDetail='incorrect checksum'"
+      exit 1
+    fi
+
+  fi
+
+  # ok looks good - return filename 
+  echo "filename=${filename}"
+  exit 0
+fi
+
+echo "error='unkown parameter'"
+exit 1