Initial commit

.github/workflows/build-and-deploy.yml

@@ -0,0 +1,42 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# GitHub recommends pinning actions to a commit SHA.
+# To get a newer version, you will need to update the SHA.
+# You can also reference a tag or branch, but the action may change without warning.
+
+name: Publish Docker image
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+      
+      - name: Log in to Docker Hub
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: idanoo/rtl-pager-discord
+      
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM ubuntu:22.04
+
+# Update softwares
+RUN apt update && apt -y upgrade
+
+# Install softwares
+RUN apt install -y redis rtl-sdr multimon-ng
+
+# Copy and set file
+COPY pager.sh /pager.sh
+RUN chmod +x /pager.sh
+
+RUN ["bash", "/pager.sh"]

README.md

@@ -1,2 +1,10 @@
 # rtl-pager-discord
-Docker container to pull pager message into a discord channel
+Docker container to pull pager message into a discord channel from an RTL-SDR
+
+```
+docker run  idanoo/rtl-pager-discord
+
+ENV VARS:    
+- FREQUENCY    
+- GAIN    
+- DISCORD_WEBHOOK_URL    

pager.sh

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+#!/bin/bash
+
+# Make sure redis is booted!
+echo 'Booting redis'
+/etc/init.d/redis-server start
+
+# Array of messages to skip
+declare -A toSkip
+toSkip+=( "this is a test" )
+toSkip+=( "enabled demodulators" )
+toSkip+=( "test page" )
+toSkip+=( "assigned to station" )
+
+# Array of emojis to add
+declare -A emojiArr
+# House
+emojiArr[house]=":house:"
+emojiArr[roof]=":house:"
+# Car
+emojiArr[mva]=":blue_car:"
+emojiArr[mvc]=":blue_car:"
+emojiArr[car ]=":blue_car:"
+#Heli
+emojiArr[westp1]=":helicopter:"
+# Fire
+emojiArr[fire]=":fire:"
+emojiArr[stru]=":fire:"
+emojiArr[smoke]=":fire:"
+emojiArr[smoking]=":fire:"
+emojiArr[chimney]=":fire:"
+emojiArr[sprnklr]=":fire:"
+# Flood
+emojiArr[flood]=":ocean:"
+# Wind
+emojiArr[wind]=":wind_blowing_face:"
+emojiArr[blow]=":wind_blowing_face:"
+# Power
+emojiArr[power]=":zap:"
+emojiArr[electric]=":zap:"
+emojiArr[spark]=":zap:"
+# Ambulance
+emojiArr[chest pain]=":ambulance:"
+emojiArr[not alert]=":ambulance:"
+emojiArr[seizure]=":ambulance:"
+emojiArr[breath]=":ambulance:"
+emojiArr[pain]=":ambulance:"
+emojiArr[fall ]=":ambulance:"
+emojiArr[orange]=":ambulance:"
+emojiArr[sweats]=":ambulance:"
+emojiArr[acute]=":ambulance:"
+emojiArr[red 1]=":ambulance:"
+emojiArr[red 2]=":ambulance:"
+emojiArr[respitory]=":ambulance:"
+emojiArr[bleeding]=":ambulance:"
+emojiArr[purple]=":ambulance:"
+# Rescue
+emojiArr[resc ]=":helmet_with_cross:"
+emojiArr[hazchem]=":biohazard:"
+# Tree
+emojiArr[tree]=":evergreen_tree:"
+
+# Send to discord
+sendMsg () {
+  # Clean up messages
+  STRIP=$(echo "$1" | sed ':a;N;$!ba;s/\n/ /g' | awk '{$1=$1};1' | sed 's/^|\(.*\)/\1/' | sed 's/<ETX>//g')
+  STRIPLOWER=$(echo "$STRIP" | tr '[:upper:]' '[:lower:]')
+  
+  # Append emojis
+  for find in "${!emojiArr[@]}"; do
+      # Check if keyword matches
+      if [[ "$STRIPLOWER" == *"$find"* ]]; then
+          # Check if we have already added the keyword
+          if [[ "$STRIP" == *"${emojiArr[$find]}"* ]]; then
+              continue
+          fi
+
+          # Prepend the keyword
+          STRIP="${emojiArr[$find]} $STRIP"
+      fi
+  done
+
+  CACHECHECK=$(cacheCheck "$STRIP")
+  if [[ "$CACHECHECK" == "OK" ]]; then
+      # send to discord
+      curl -sS -H "Content-Type: application/json" -d "{\"username\":\"Pager\",\"content\":\"$STRIP\"}" $DISCORD_WEBHOOK_URL > /dev/null
+  fi
+}
+
+# Check if we've sent recently (5min TTL)
+cacheCheck () {
+    redis-cli SET "pager:$(echo -n $1 | md5sum | awk '{print $1}')" "true" NX EX 300
+}
+
+# Run script!
+rtl_fm -M fm -f ${FREQUENCY:=157.945M} -g ${GAIN:=40.2} -s 22050 -- | multimon-ng -t raw -a POCSAG512 -a POCSAG1200 -a FLEX -a POCSAG2400 /dev/stdin | while read -r line ; do
+  LINELOWER=$(echo "$line" | tr '[:upper:]' '[:lower:]')
+  # Skip certain messages
+  for find in "${!toSkip[@]}"; do
+    # Check if keyword matches - if so.. ignore
+    if [[ "$LINELOWER" == *"$find"* ]]; then
+        continue 2
+    fi
+  done
+
+  # Remove prefixes
+  if [[ "$line" == "FLEX"* ]]; then
+    sendMsg "${line#*ALN}"
+  elif [[ "$line" == "POCSAG"* ]]; then
+    if [[ "$line" == *"Alpha"* ]]; then
+      sendMsg "${line#*Alpha:}"
+    fi
+  else
+    sendMsg "$line"
+  fi
+done