[CORRECTION] Merging changes for 2.2.4 release

ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/quecmanager/experimental/cell_scanner/clear_scan.sh

@@ -0,0 +1,99 @@
+#!/bin/sh
+
+# Set content type to JSON
+echo "Content-type: application/json" 
+echo ""
+
+# Configuration
+QUEUE_DIR="/tmp/at_queue"
+RESULTS_DIR="$QUEUE_DIR/results"
+RESULT_FILE="/tmp/qscan_result.json"
+PID_FILE="/tmp/cell_scan.pid"
+TOKEN_FILE="$QUEUE_DIR/token"
+
+# Function to log messages
+log_message() {
+    local level="${2:-info}"
+    logger -t at_queue -p "daemon.$level" "check_scan: $1"
+}
+
+# Function to output JSON response
+output_json() {
+    local status="$1"
+    local message="$2"
+
+    if [ "$status" = "success" ] && [ -f "$RESULT_FILE" ]; then
+        # Return the contents of the result file
+        cat "$RESULT_FILE"
+    else
+        printf '{"status":"%s","message":"%s","timestamp":"","output":""}\n' "$status" "$message"
+    fi
+}
+
+# Check for scan token holder
+check_token_holder() {
+    if [ -f "$TOKEN_FILE" ]; then
+        local current_holder=$(cat "$TOKEN_FILE" | jsonfilter -e '@.id' 2>/dev/null)
+        if [ -n "$current_holder" ] && echo "$current_holder" | grep -q "CELL_SCAN"; then
+            log_message "Cell scan token is active: $current_holder" "debug"
+            return 0
+        fi
+    fi
+    return 1
+}
+
+# Check if a scan is already in progress
+check_scan_progress() {
+    # First check PID file
+    if [ -f "$PID_FILE" ]; then
+        pid=$(cat "$PID_FILE")
+        if kill -0 "$pid" 2>/dev/null; then
+            log_message "Scan in progress (PID: $pid)" "info"
+            output_json "running" "Scan in progress"
+            exit 0
+        else
+            log_message "Removing stale PID file" "warn"
+            rm -f "$PID_FILE"
+        fi
+    fi
+
+    # Also check token holder
+    if check_token_holder; then
+        log_message "Scan in progress (Token active)" "info"
+        output_json "running" "Scan in progress (Token active)"
+        exit 0
+    fi
+}
+
+# Check for existing results
+check_results() {
+    if [ -f "$RESULT_FILE" ]; then
+        rm -f "$RESULT_FILE"  # Remove the result file if it exists
+        log_message "Result file removed" "info"
+        output_json "success" "Scan results removed"
+        exit 0
+    else
+        log_message "No result file found to clear" "info"
+        output_json "success" "No result file to clear"
+        exit 0
+    fi
+}
+
+# Main execution
+{
+    # First check if a scan is in progress
+    check_scan_progress
+
+    # Then check for existing results
+    check_results
+
+    # If no results and no running scan, indicate idle state
+    log_message "No active scan or recent results" "info"
+    output_json "success" "No active scan"
+    exit 0
+} || {
+    # Error handler
+    log_message "Failed to remove scan results" "error"
+    output_json "error" "Failed to remove scan results"
+    exit 1
+}