ac472a2f5c
- Various edits - Addition of QuecWatch for connection monitoring Co-Authored-By: Russel Yasol <73575327+dr-dolomite@users.noreply.github.com>
214 lines
6.6 KiB
Bash
Executable File
214 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
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# Read POST data
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read -r QUERY_STRING
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# Function to urldecode
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urldecode() {
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echo -e "$(echo "$1" | sed 's/+/ /g;s/%\([0-9A-F][0-9A-F]\)/\\x\1/g')"
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}
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# Configuration directory
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CONFIG_DIR="/etc/quecmanager/quecwatch"
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QUECWATCH_CONFIG="${CONFIG_DIR}/quecwatch.conf"
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QUECWATCH_SCRIPT="${CONFIG_DIR}/quecwatch.sh"
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RCLOCAL="/etc/rc.local"
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LOG_DIR="/tmp/log/quecwatch"
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DEBUG_LOG_FILE="${LOG_DIR}/debug.log"
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# Ensure log directory exists
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mkdir -p "${LOG_DIR}"
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# Extract values from POST data
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action=$(echo "$QUERY_STRING" | grep -o 'action=[^&]*' | cut -d= -f2)
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ping_target=$(echo "$QUERY_STRING" | grep -o 'ping_target=[^&]*' | cut -d= -f2)
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ping_interval=$(echo "$QUERY_STRING" | grep -o 'ping_interval=[^&]*' | cut -d= -f2)
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ping_failures=$(echo "$QUERY_STRING" | grep -o 'ping_failures=[^&]*' | cut -d= -f2)
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max_retries=$(echo "$QUERY_STRING" | grep -o 'max_retries=[^&]*' | cut -d= -f2)
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connection_refresh=$(echo "$QUERY_STRING" | grep -o 'connection_refresh=[^&]*' | cut -d= -f2)
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# URL decode the values
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action=$(urldecode "$action")
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ping_target=$(urldecode "$ping_target")
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ping_interval=$(urldecode "$ping_interval")
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ping_failures=$(urldecode "$ping_failures")
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max_retries=$(urldecode "$max_retries")
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connection_refresh=$(urldecode "$connection_refresh")
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# Default response headers
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echo "Content-type: application/json"
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echo ""
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# Validate inputs
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if [ -z "$ping_target" ]; then
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echo '{"status": "error", "message": "Ping target is required"}'
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exit 1
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fi
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# Initialize configuration function
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initialize_config() {
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# Create config directory if not exists
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mkdir -p "${CONFIG_DIR}"
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# Write configuration with defaults
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cat >"${QUECWATCH_CONFIG}" <<EOL
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PING_TARGET=${ping_target}
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PING_INTERVAL=${ping_interval:-30}
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PING_FAILURES=${ping_failures:-3}
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MAX_RETRIES=${max_retries:-5}
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CONNECTION_REFRESH=${connection_refresh:-false}
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CURRENT_RETRIES=0
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REFRESH_COUNT=${connection_refresh:+1}
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ENABLED=true
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EOL
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chmod 644 "${QUECWATCH_CONFIG}"
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}
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# Generate monitoring script function
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generate_monitoring_script() {
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cat >"${QUECWATCH_SCRIPT}" <<'EOL'
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#!/bin/sh
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# Load configuration
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. /etc/quecmanager/quecwatch/quecwatch.conf
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# Log directory
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LOG_DIR="/tmp/log/quecwatch"
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mkdir -p "${LOG_DIR}"
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# Function to log events
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log_event() {
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" >> "${LOG_DIR}/quecwatch.log"
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}
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# Function to update retry count in config
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update_retry_count() {
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local new_retry_count=$1
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sed -i "s/CURRENT_RETRIES=[0-9]*/CURRENT_RETRIES=${new_retry_count}/" /etc/quecmanager/quecwatch/quecwatch.conf
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# Reload config to ensure latest values
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. /etc/quecmanager/quecwatch/quecwatch.conf
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}
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# Initialize failure and retry counters
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failure_count=0
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retry_trigger=0
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# Ensure CURRENT_RETRIES starts at 0
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update_retry_count 0
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while true; do
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# Ping the target
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if ! ping -c ${PING_FAILURES} ${PING_TARGET} > /dev/null 2>&1; then
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failure_count=$((failure_count + 1))
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log_event "Ping failed. Failure count: ${failure_count}"
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# Check if failure threshold is reached
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if [ ${failure_count} -ge ${PING_FAILURES} ]; then
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# Reset failure count
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failure_count=0
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retry_trigger=$((retry_trigger + 1))
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# Update retry count in config
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update_retry_count ${retry_trigger}
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log_event "Failure threshold reached. Retry trigger: ${retry_trigger}"
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# Check if retry threshold is reached
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if [ ${retry_trigger} -ge ${MAX_RETRIES} ]; then
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log_event "Max retries exhausted. Removing QuecWatch."
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# Remove the script from rc.local
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sed -i '\|/etc/quecmanager/quecwatch/quecwatch.sh|d' /etc/rc.local
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# Perform final system reboot
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reboot
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exit 0
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fi
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# Connection refresh logic
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if [ "${CONNECTION_REFRESH}" = "true" ] && [ "${REFRESH_COUNT}" -gt 0 ]; then
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# Decrement refresh count
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. /etc/quecmanager/quecwatch/quecwatch.conf
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REFRESH_COUNT=$((REFRESH_COUNT - 1))
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# Update config
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sed -i "s/REFRESH_COUNT=.*/REFRESH_COUNT=${REFRESH_COUNT}/" /etc/quecmanager/quecwatch/quecwatch.conf
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log_event "Attempting connection refresh"
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# Add your modem connection refresh command here
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echo AT+COPS=2 | atinout - /dev/smd7 -
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sleep 2
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echo AT+COPS=0 | atinout - /dev/smd7 -
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# Verify connection after refresh
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if ! ping -c 3 ${PING_TARGET} > /dev/null 2>&1; then
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log_event "Connection refresh failed. Continuing with retry process."
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# Continue with retry process, no premature reboot or script removal
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else
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log_event "Connection refresh successful"
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# Reset retry trigger if connection is restored
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retry_trigger=0
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failure_count=0
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update_retry_count 0
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fi
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else
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# Perform modem reboot
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log_event "Rebooting modem. Retry attempts: ${retry_trigger}"
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# Add your modem reboot command here
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reboot
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fi
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fi
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else
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# Reset failure count and retry trigger if connection is good
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log_event "Modem is connected to the internet"
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failure_count=0
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retry_trigger=0
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update_retry_count 0
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fi
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# Wait for specified interval before next check
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sleep ${PING_INTERVAL}
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done
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EOL
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chmod +x "${QUECWATCH_SCRIPT}"
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# Run the script
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"${QUECWATCH_SCRIPT}" &
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}
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# Enable QuecWatch
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enable_quecwatch() {
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# Initialize configuration
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initialize_config
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# Generate monitoring script
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generate_monitoring_script
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# Add to rc.local if not already present
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if ! grep -q "${QUECWATCH_SCRIPT}" "${RCLOCAL}"; then
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[ -f "${RCLOCAL}" ] || touch "${RCLOCAL}"
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chmod +x "${RCLOCAL}"
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sed -i '$i'"${QUECWATCH_SCRIPT} &" "${RCLOCAL}"
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fi
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# Output success JSON
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echo '{"status": "success", "message": "QuecWatch enabled", "config": "'${QUECWATCH_CONFIG}'"}'
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}
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# Log debug information
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{
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echo "Timestamp: $(date)"
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echo "Script Path: $0"
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echo "Ping Target: $ping_target"
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echo "Ping Interval: $ping_interval"
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echo "Ping Failures: $ping_failures"
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echo "Max Retries: $max_retries"
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echo "Connection Refresh: $connection_refresh"
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} >>"$DEBUG_LOG_FILE" 2>&1
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# Enable QuecWatch
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enable_quecwatch
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exit 0 |