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package config
import (
"fmt"
"os"
"strings"
"time"
"gopkg.in/yaml.v3"
)
// Config represents the root configuration structure
type Config struct {
Site SiteConfig `yaml:"site"`
Server ServerConfig `yaml:"server"`
Storage StorageConfig `yaml:"storage"`
Display DisplayConfig `yaml:"display"`
Groups []GroupConfig `yaml:"groups"`
Incidents []IncidentConfig `yaml:"incidents"`
}
// DisplayConfig contains display/UI settings
type DisplayConfig struct {
// TickMode controls how history is aggregated: ping, minute, hour, day
TickMode string `yaml:"tick_mode"`
// TickCount is the number of ticks/bars to display in the history
TickCount int `yaml:"tick_count"`
// PingFixedSlots: when true and tick_mode=ping, shows fixed slots with empty bars
// when false, bars grow dynamically as pings come in
PingFixedSlots bool `yaml:"ping_fixed_slots"`
// Timezone for display (e.g., "UTC", "America/New_York", "Local")
Timezone string `yaml:"timezone"`
// Scale adjusts the overall UI scale (default: 1.0, range: 0.5-2.0)
Scale float64 `yaml:"scale"`
}
// SiteConfig contains site metadata
type SiteConfig struct {
Name string `yaml:"name"`
Description string `yaml:"description"`
Logo string `yaml:"logo"`
Favicon string `yaml:"favicon"`
ThemeURL string `yaml:"theme_url"` // URL to OpenCode-compatible theme JSON
CustomHead string `yaml:"custom_head"` // Custom HTML to inject into <head> (e.g., analytics)
}
// ServerConfig contains HTTP server settings
type ServerConfig struct {
Host string `yaml:"host"`
Port int `yaml:"port"`
}
// StorageConfig contains database settings
type StorageConfig struct {
Path string `yaml:"path"`
HistoryDays int `yaml:"history_days"`
}
// GroupConfig represents a group of monitors
type GroupConfig struct {
Name string `yaml:"name"`
Monitors []MonitorConfig `yaml:"monitors"`
DefaultCollapsed *bool `yaml:"default_collapsed"` // nil = false (expanded by default)
ShowGroupUptime *bool `yaml:"show_group_uptime"` // nil = true (show by default)
// Group-level defaults that apply to all monitors in the group (can be overridden per monitor)
Defaults *MonitorDefaults `yaml:"defaults,omitempty"`
}
// MonitorDefaults contains default values that can be set at group level
type MonitorDefaults struct {
Interval *Duration `yaml:"interval,omitempty"`
Timeout *Duration `yaml:"timeout,omitempty"`
Retries *int `yaml:"retries,omitempty"`
VerifySSL *bool `yaml:"verify_ssl,omitempty"`
DisablePingTooltips *bool `yaml:"disable_ping_tooltips,omitempty"`
DisableUptimeTooltip *bool `yaml:"disable_uptime_tooltip,omitempty"`
}
// MonitorConfig represents a single monitor
type MonitorConfig struct {
Name string `yaml:"name"`
Type string `yaml:"type"` // http, https, tcp, gemini
Target string `yaml:"target"`
Link string `yaml:"link,omitempty"` // Custom URL for clicking the monitor name (e.g., docs page)
Interval Duration `yaml:"interval"`
Timeout Duration `yaml:"timeout"`
Retries int `yaml:"retries,omitempty"` // Number of retry attempts before marking as down
ResetOnNextCheck bool `yaml:"reset_on_next_check,omitempty"` // Wipe monitor data on next check and flip to false
ExpectedStatus int `yaml:"expected_status,omitempty"`
ExpectedContent string `yaml:"expected_content,omitempty"` // Expected text in response body
VerifySSL *bool `yaml:"verify_ssl,omitempty"`
HideSSLDays bool `yaml:"hide_ssl_days,omitempty"` // Hide SSL days left from display
HidePing bool `yaml:"hide_ping,omitempty"` // Hide response time from display
RoundResponseTime bool `yaml:"round_response_time,omitempty"` // Round response time to nearest second
RoundUptime bool `yaml:"round_uptime,omitempty"` // Round uptime percentage (e.g., 99.99% → 100%)
DisablePingTooltips bool `yaml:"disable_ping_tooltips,omitempty"` // Disable hover tooltips on ping history bars
DisableUptimeTooltip bool `yaml:"disable_uptime_tooltip,omitempty"` // Disable hover tooltip on uptime percentage
Method string `yaml:"method,omitempty"`
UserAgent string `yaml:"user_agent,omitempty"` // Custom User-Agent header (default: "Kaze-Monitor/1.0")
Headers map[string]string `yaml:"headers,omitempty"`
Body string `yaml:"body,omitempty"`
// ICMP specific fields
PingCount int `yaml:"ping_count,omitempty"` // Number of ICMP packets to send (default: 4)
// DNS specific fields
DNSServer string `yaml:"dns_server,omitempty"` // DNS server to query (default: system resolver)
ExpectedIPs []string `yaml:"expected_ips,omitempty"` // Expected IP addresses for DNS resolution
ExpectedCNAME string `yaml:"expected_cname,omitempty"` // Expected CNAME record
RecordType string `yaml:"record_type,omitempty"` // DNS record type (A, AAAA, CNAME, MX, TXT, etc.)
// GraphQL specific fields
GraphQLQuery string `yaml:"graphql_query,omitempty"` // GraphQL query to execute
GraphQLVariables map[string]string `yaml:"graphql_variables,omitempty"` // GraphQL query variables
// Database specific fields
DBType string `yaml:"db_type,omitempty"` // Database type: postgres, mysql, redis, memcached, mongodb
}
// IncidentConfig represents an incident or maintenance
type IncidentConfig struct {
Title string `yaml:"title"`
Status string `yaml:"status"` // scheduled, investigating, identified, monitoring, resolved
Message string `yaml:"message"`
ScheduledStart *time.Time `yaml:"scheduled_start,omitempty"`
ScheduledEnd *time.Time `yaml:"scheduled_end,omitempty"`
CreatedAt *time.Time `yaml:"created_at,omitempty"`
ResolvedAt *time.Time `yaml:"resolved_at,omitempty"`
AffectedMonitors []string `yaml:"affected_monitors,omitempty"`
Updates []IncidentUpdate `yaml:"updates,omitempty"`
}
// IncidentUpdate represents an update to an incident
type IncidentUpdate struct {
Time time.Time `yaml:"time"`
Status string `yaml:"status"`
Message string `yaml:"message"`
}
// Duration is a wrapper around time.Duration for YAML parsing
type Duration struct {
time.Duration
}
// UnmarshalYAML implements yaml.Unmarshaler for Duration
func (d *Duration) UnmarshalYAML(value *yaml.Node) error {
var s string
if err := value.Decode(&s); err != nil {
return err
}
duration, err := time.ParseDuration(s)
if err != nil {
return fmt.Errorf("invalid duration %q: %w", s, err)
}
d.Duration = duration
return nil
}
// MarshalYAML implements yaml.Marshaler for Duration
func (d Duration) MarshalYAML() (interface{}, error) {
return d.Duration.String(), nil
}
// Load reads and parses a configuration file
func Load(path string) (*Config, error) {
data, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("failed to read config file: %w", err)
}
var cfg Config
if err := yaml.Unmarshal(data, &cfg); err != nil {
return nil, fmt.Errorf("failed to parse config file: %w", err)
}
// Apply defaults
cfg.applyDefaults()
// Validate configuration
if err := cfg.validate(); err != nil {
return nil, fmt.Errorf("invalid configuration: %w", err)
}
return &cfg, nil
}
// applyDefaults sets default values for missing configuration
func (c *Config) applyDefaults() {
if c.Site.Name == "" {
c.Site.Name = "Kaze Status"
}
if c.Site.Description == "" {
c.Site.Description = "Service Status Page"
}
if c.Server.Host == "" {
c.Server.Host = "0.0.0.0"
}
if c.Server.Port == 0 {
c.Server.Port = 8080
}
if c.Storage.Path == "" {
c.Storage.Path = "./kaze.db"
}
if c.Storage.HistoryDays == 0 {
c.Storage.HistoryDays = 90
}
// Apply display defaults
if c.Display.TickMode == "" {
c.Display.TickMode = "hour"
}
if c.Display.TickCount == 0 {
c.Display.TickCount = 45
}
if c.Display.Timezone == "" {
c.Display.Timezone = "Local"
}
if c.Display.Scale == 0 {
c.Display.Scale = 1.0
}
// Clamp scale to reasonable range
if c.Display.Scale < 0.5 {
c.Display.Scale = 0.5
} else if c.Display.Scale > 2.0 {
c.Display.Scale = 2.0
}
// Apply group defaults
for i := range c.Groups {
grp := &c.Groups[i]
if grp.DefaultCollapsed == nil {
defaultCollapsed := false
grp.DefaultCollapsed = &defaultCollapsed
}
if grp.ShowGroupUptime == nil {
defaultShow := true
grp.ShowGroupUptime = &defaultShow
}
for j := range c.Groups[i].Monitors {
m := &c.Groups[i].Monitors[j]
// Apply group-level defaults first, then monitor-level overrides
if m.Interval.Duration == 0 {
if grp.Defaults != nil && grp.Defaults.Interval != nil {
m.Interval = *grp.Defaults.Interval
} else {
m.Interval.Duration = 30 * time.Second
}
}
if m.Timeout.Duration == 0 {
if grp.Defaults != nil && grp.Defaults.Timeout != nil {
m.Timeout = *grp.Defaults.Timeout
} else {
m.Timeout.Duration = 10 * time.Second
}
}
// Apply group-level retries default
if m.Retries == 0 && grp.Defaults != nil && grp.Defaults.Retries != nil {
m.Retries = *grp.Defaults.Retries
}
// Retries default to 0 (no retries) if not specified
if m.Retries < 0 {
m.Retries = 0
}
if m.Type == "http" || m.Type == "https" {
if m.ExpectedStatus == 0 {
m.ExpectedStatus = 200
}
if m.Method == "" {
m.Method = "GET"
}
if m.VerifySSL == nil {
// Apply group default if available
if grp.Defaults != nil && grp.Defaults.VerifySSL != nil {
m.VerifySSL = grp.Defaults.VerifySSL
} else {
defaultVerify := true
m.VerifySSL = &defaultVerify
}
}
}
if m.Type == "gemini" {
if m.VerifySSL == nil {
// Apply group default if available
if grp.Defaults != nil && grp.Defaults.VerifySSL != nil {
m.VerifySSL = grp.Defaults.VerifySSL
} else {
defaultVerify := true
m.VerifySSL = &defaultVerify
}
}
}
// Apply group-level disable_ping_tooltips default
if !m.DisablePingTooltips && grp.Defaults != nil && grp.Defaults.DisablePingTooltips != nil && *grp.Defaults.DisablePingTooltips {
m.DisablePingTooltips = true
}
// Apply group-level disable_uptime_tooltip default
if !m.DisableUptimeTooltip && grp.Defaults != nil && grp.Defaults.DisableUptimeTooltip != nil && *grp.Defaults.DisableUptimeTooltip {
m.DisableUptimeTooltip = true
}
}
}
}
// validate checks the configuration for errors
func (c *Config) validate() error {
if len(c.Groups) == 0 {
return fmt.Errorf("at least one group with monitors is required")
}
for _, group := range c.Groups {
if group.Name == "" {
return fmt.Errorf("group name cannot be empty")
}
if len(group.Monitors) == 0 {
return fmt.Errorf("group %q must have at least one monitor", group.Name)
}
for _, monitor := range group.Monitors {
if monitor.Name == "" {
return fmt.Errorf("monitor name cannot be empty in group %q", group.Name)
}
if monitor.Target == "" {
return fmt.Errorf("monitor %q must have a target", monitor.Name)
}
switch monitor.Type {
case "http", "https", "tcp", "gemini", "icmp", "dns", "graphql", "database", "db":
// Valid types
default:
return fmt.Errorf("monitor %q has invalid type %q (must be http, https, tcp, gemini, icmp, dns, graphql, or database)", monitor.Name, monitor.Type)
}
// Type-specific validation
if monitor.Type == "graphql" && monitor.GraphQLQuery == "" {
return fmt.Errorf("monitor %q is type 'graphql' but missing required 'graphql_query' field", monitor.Name)
}
if (monitor.Type == "database" || monitor.Type == "db") && monitor.DBType == "" {
return fmt.Errorf("monitor %q is type 'database' but missing required 'db_type' field", monitor.Name)
}
}
}
// Validate incidents
for _, incident := range c.Incidents {
if incident.Title == "" {
return fmt.Errorf("incident title cannot be empty")
}
switch incident.Status {
case "scheduled", "investigating", "identified", "monitoring", "resolved":
// Valid statuses
default:
return fmt.Errorf("incident %q has invalid status %q", incident.Title, incident.Status)
}
}
// Validate display config
switch c.Display.TickMode {
case "ping", "minute", "hour", "day":
// Valid modes
default:
return fmt.Errorf("invalid tick_mode %q (must be ping, minute, hour, or day)", c.Display.TickMode)
}
if c.Display.TickCount < 1 || c.Display.TickCount > 200 {
return fmt.Errorf("tick_count must be between 1 and 200, got %d", c.Display.TickCount)
}
return nil
}
// GetAllMonitors returns all monitors from all groups with their group names
func (c *Config) GetAllMonitors() []MonitorWithGroup {
var monitors []MonitorWithGroup
for _, group := range c.Groups {
for _, monitor := range group.Monitors {
monitors = append(monitors, MonitorWithGroup{
GroupName: group.Name,
Monitor: monitor,
})
}
}
return monitors
}
// MonitorWithGroup pairs a monitor with its group name
type MonitorWithGroup struct {
GroupName string
Monitor MonitorConfig
}
// UpdateResetFlag updates the reset_on_next_check flag for a specific monitor in the config file
// Uses a line-based approach to preserve original formatting and omitted fields
func UpdateResetFlag(configPath string, monitorName string, value bool) error {
// Read the config file
data, err := os.ReadFile(configPath)
if err != nil {
return fmt.Errorf("failed to read config file: %w", err)
}
lines := strings.Split(string(data), "\n")
inMonitor := false
monitorIndent := ""
foundMonitor := false
for i := 0; i < len(lines); i++ {
line := lines[i]
trimmed := strings.TrimSpace(line)
// Check if this is the start of our target monitor
if strings.HasPrefix(trimmed, "- name:") || strings.HasPrefix(trimmed, "name:") {
// Extract monitor name from line
namePart := strings.TrimPrefix(trimmed, "- name:")
namePart = strings.TrimPrefix(namePart, "name:")
namePart = strings.TrimSpace(namePart)
namePart = strings.Trim(namePart, "\"'")
if namePart == monitorName {
inMonitor = true
foundMonitor = true
// Calculate the indentation level
monitorIndent = line[:len(line)-len(strings.TrimLeft(line, " \t"))]
continue
}
}
// If we're in the target monitor, look for reset_on_next_check or end of monitor
if inMonitor {
// Check if we've left the monitor section (new monitor or less indented line)
if strings.HasPrefix(trimmed, "- name:") || strings.HasPrefix(trimmed, "name:") {
// We've reached another monitor without finding reset_on_next_check
// Insert the line before this one if we're setting to false
if !value {
// Only add if setting to false (after a reset)
insertLine := monitorIndent + " reset_on_next_check: false"
lines = append(lines[:i], append([]string{insertLine}, lines[i:]...)...)
}
break
}
// Check if this line is reset_on_next_check
if strings.Contains(trimmed, "reset_on_next_check:") {
// Update the value
if !value {
// Set to false after reset
lines[i] = monitorIndent + " reset_on_next_check: false"
} else {
// Keep as true (should already be true, but update to be sure)
lines[i] = monitorIndent + " reset_on_next_check: true"
}
break
}
}
}
if !foundMonitor {
return fmt.Errorf("monitor %q not found in config", monitorName)
}
// Write back to file
newData := []byte(strings.Join(lines, "\n"))
if err := os.WriteFile(configPath, newData, 0644); err != nil {
return fmt.Errorf("failed to write config file: %w", err)
}
return nil
}
|