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wakapi/config/config.go
2021-06-24 21:56:47 +02:00

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package config
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"net/http"
"os"
"strings"
"time"
"github.com/emvi/logbuch"
"github.com/gorilla/securecookie"
"github.com/jinzhu/configor"
"github.com/muety/wakapi/data"
"github.com/muety/wakapi/models"
"gorm.io/gorm"
)
const (
defaultConfigPath = "config.yml"
SQLDialectMysql = "mysql"
SQLDialectPostgres = "postgres"
SQLDialectSqlite = "sqlite3"
KeyLatestTotalTime = "latest_total_time"
KeyLatestTotalUsers = "latest_total_users"
KeyLastImportImport = "last_import"
SimpleDateFormat = "2006-01-02"
SimpleDateTimeFormat = "2006-01-02 15:04:05"
ErrUnauthorized = "401 unauthorized"
ErrInternalServerError = "500 internal server error"
)
const (
WakatimeApiUrl = "https://wakatime.com/api/v1"
WakatimeApiUserUrl = "/users/current"
WakatimeApiAllTimeUrl = "/users/current/all_time_since_today"
WakatimeApiHeartbeatsUrl = "/users/current/heartbeats"
WakatimeApiHeartbeatsBulkUrl = "/users/current/heartbeats.bulk"
WakatimeApiUserAgentsUrl = "/users/current/user_agents"
WakatimeApiMachineNamesUrl = "/users/current/machine_names"
)
const (
MailProviderSmtp = "smtp"
MailProviderMailWhale = "mailwhale"
)
var emailProviders = []string{
MailProviderSmtp,
MailProviderMailWhale,
}
var cfg *Config
var cFlag = flag.String("config", defaultConfigPath, "config file location")
var env string
type appConfig struct {
AggregationTime string `yaml:"aggregation_time" default:"02:15" env:"WAKAPI_AGGREGATION_TIME"`
ReportTimeWeekly string `yaml:"report_time_weekly" default:"fri,18:00" env:"WAKAPI_REPORT_TIME_WEEKLY"`
ImportBackoffMin int `yaml:"import_backoff_min" default:"5" env:"WAKAPI_IMPORT_BACKOFF_MIN"`
ImportBatchSize int `yaml:"import_batch_size" default:"50" env:"WAKAPI_IMPORT_BATCH_SIZE"`
InactiveDays int `yaml:"inactive_days" default:"7" env:"WAKAPI_INACTIVE_DAYS"`
CustomLanguages map[string]string `yaml:"custom_languages"`
Colors map[string]map[string]string `yaml:"-"`
}
type securityConfig struct {
AllowSignup bool `yaml:"allow_signup" default:"true" env:"WAKAPI_ALLOW_SIGNUP"`
ExposeMetrics bool `yaml:"expose_metrics" default:"false" env:"WAKAPI_EXPOSE_METRICS"`
// this is actually a pepper (https://en.wikipedia.org/wiki/Pepper_(cryptography))
PasswordSalt string `yaml:"password_salt" default:"" env:"WAKAPI_PASSWORD_SALT"`
InsecureCookies bool `yaml:"insecure_cookies" default:"false" env:"WAKAPI_INSECURE_COOKIES"`
CookieMaxAgeSec int `yaml:"cookie_max_age" default:"172800" env:"WAKAPI_COOKIE_MAX_AGE"`
SecureCookie *securecookie.SecureCookie `yaml:"-"`
}
type dbConfig struct {
Host string `env:"WAKAPI_DB_HOST"`
Port uint `env:"WAKAPI_DB_PORT"`
User string `env:"WAKAPI_DB_USER"`
Password string `env:"WAKAPI_DB_PASSWORD"`
Name string `default:"wakapi_db.db" env:"WAKAPI_DB_NAME"`
Dialect string `yaml:"-"`
Charset string `default:"utf8mb4" env:"WAKAPI_DB_CHARSET"`
Type string `yaml:"dialect" default:"sqlite3" env:"WAKAPI_DB_TYPE"`
MaxConn uint `yaml:"max_conn" default:"2" env:"WAKAPI_DB_MAX_CONNECTIONS"`
Ssl bool `default:"false" env:"WAKAPI_DB_SSL"`
AutoMigrateFailSilently bool `yaml:"automigrate_fail_silently" default:"false" env:"WAKAPI_DB_AUTOMIGRATE_FAIL_SILENTLY"`
}
type serverConfig struct {
Port int `default:"3000" env:"WAKAPI_PORT"`
ListenIpV4 string `yaml:"listen_ipv4" default:"127.0.0.1" env:"WAKAPI_LISTEN_IPV4"`
ListenIpV6 string `yaml:"listen_ipv6" default:"::1" env:"WAKAPI_LISTEN_IPV6"`
ListenSocket string `yaml:"listen_socket" default:"" env:"WAKAPI_LISTEN_SOCKET"`
TimeoutSec int `yaml:"timeout_sec" default:"30" env:"WAKAPI_TIMEOUT_SEC"`
BasePath string `yaml:"base_path" default:"/" env:"WAKAPI_BASE_PATH"`
PublicUrl string `yaml:"public_url" default:"http://localhost:3000" env:"WAKAPI_PUBLIC_URL"`
TlsCertPath string `yaml:"tls_cert_path" default:"" env:"WAKAPI_TLS_CERT_PATH"`
TlsKeyPath string `yaml:"tls_key_path" default:"" env:"WAKAPI_TLS_KEY_PATH"`
}
type sentryConfig struct {
Dsn string `env:"WAKAPI_SENTRY_DSN"`
EnableTracing bool `yaml:"enable_tracing" env:"WAKAPI_SENTRY_TRACING"`
SampleRate float32 `yaml:"sample_rate" default:"0.75" env:"WAKAPI_SENTRY_SAMPLE_RATE"`
SampleRateHeartbeats float32 `yaml:"sample_rate_heartbeats" default:"0.1" env:"WAKAPI_SENTRY_SAMPLE_RATE_HEARTBEATS"`
}
type mailConfig struct {
Enabled bool `env:"WAKAPI_MAIL_ENABLED" default:"true"`
Provider string `env:"WAKAPI_MAIL_PROVIDER" default:"smtp"`
MailWhale MailwhaleMailConfig `yaml:"mailwhale"`
Smtp SMTPMailConfig `yaml:"smtp"`
Sender string `env:"WAKAPI_MAIL_SENDER" yaml:"sender"`
}
type MailwhaleMailConfig struct {
Url string `env:"WAKAPI_MAIL_MAILWHALE_URL"`
ClientId string `yaml:"client_id" env:"WAKAPI_MAIL_MAILWHALE_CLIENT_ID"`
ClientSecret string `yaml:"client_secret" env:"WAKAPI_MAIL_MAILWHALE_CLIENT_SECRET"`
}
type SMTPMailConfig struct {
Host string `env:"WAKAPI_MAIL_SMTP_HOST"`
Port uint `env:"WAKAPI_MAIL_SMTP_PORT"`
Username string `env:"WAKAPI_MAIL_SMTP_USER"`
Password string `env:"WAKAPI_MAIL_SMTP_PASS"`
TLS bool `env:"WAKAPI_MAIL_SMTP_TLS"`
}
type Config struct {
Env string `default:"dev" env:"ENVIRONMENT"`
Version string `yaml:"-"`
App appConfig
Security securityConfig
Db dbConfig
Server serverConfig
Sentry sentryConfig
Mail mailConfig
}
func (c *Config) CreateCookie(name, value, path string) *http.Cookie {
return c.createCookie(name, value, path, c.Security.CookieMaxAgeSec)
}
func (c *Config) GetClearCookie(name, path string) *http.Cookie {
return c.createCookie(name, "", path, -1)
}
func (c *Config) createCookie(name, value, path string, maxAge int) *http.Cookie {
return &http.Cookie{
Name: name,
Value: value,
Path: path,
MaxAge: maxAge,
Secure: !c.Security.InsecureCookies,
HttpOnly: true,
SameSite: http.SameSiteStrictMode,
}
}
func (c *Config) IsDev() bool {
return IsDev(c.Env)
}
func (c *Config) UseTLS() bool {
return c.Server.TlsCertPath != "" && c.Server.TlsKeyPath != ""
}
func (c *Config) GetMigrationFunc(dbDialect string) models.MigrationFunc {
switch dbDialect {
default:
return func(db *gorm.DB) error {
if err := db.AutoMigrate(&models.User{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.KeyStringValue{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.Alias{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.Heartbeat{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.Summary{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.SummaryItem{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.LanguageMapping{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
if err := db.AutoMigrate(&models.ProjectLabel{}); err != nil && !c.Db.AutoMigrateFailSilently {
return err
}
return nil
}
}
}
func (c *appConfig) GetCustomLanguages() map[string]string {
return cloneStringMap(c.CustomLanguages, false)
}
func (c *appConfig) GetLanguageColors() map[string]string {
return cloneStringMap(c.Colors["languages"], true)
}
func (c *appConfig) GetEditorColors() map[string]string {
return cloneStringMap(c.Colors["editors"], true)
}
func (c *appConfig) GetOSColors() map[string]string {
return cloneStringMap(c.Colors["operating_systems"], true)
}
func (c *appConfig) GetWeeklyReportDay() time.Weekday {
s := strings.Split(c.ReportTimeWeekly, ",")[0]
return parseWeekday(s)
}
func (c *appConfig) GetWeeklyReportTime() string {
return strings.Split(c.ReportTimeWeekly, ",")[1]
}
func (c *serverConfig) GetPublicUrl() string {
return strings.TrimSuffix(c.PublicUrl, "/")
}
func (c *SMTPMailConfig) ConnStr() string {
return fmt.Sprintf("%s:%d", c.Host, c.Port)
}
func IsDev(env string) bool {
return env == "dev" || env == "development"
}
func readColors() map[string]map[string]string {
// Read language colors
// Source:
// https://raw.githubusercontent.com/ozh/github-colors/master/colors.json
// https://wakatime.com/colors/operating_systems
// - https://wakatime.com/colors/editors
// Extracted from Wakatime website with XPath (see below) and did a bit of regex magic after.
// $x('//span[@class="editor-icon tip"]/@data-original-title').map(e => e.nodeValue)
// $x('//span[@class="editor-icon tip"]/div[1]/text()').map(e => e.nodeValue)
raw := data.ColorsFile
if IsDev(env) {
raw, _ = ioutil.ReadFile("data/colors.json")
}
var colors = make(map[string]map[string]string)
if err := json.Unmarshal(raw, &colors); err != nil {
logbuch.Fatal(err.Error())
}
return colors
}
func mustReadConfigLocation() string {
if _, err := os.Stat(*cFlag); err != nil {
logbuch.Fatal("failed to find config file at '%s'", *cFlag)
}
return *cFlag
}
func resolveDbDialect(dbType string) string {
if dbType == "cockroach" {
return "postgres"
}
return dbType
}
func findString(needle string, haystack []string, defaultVal string) string {
for _, s := range haystack {
if s == needle {
return s
}
}
return defaultVal
}
func parseWeekday(s string) time.Weekday {
switch strings.ToLower(s) {
case "mon", strings.ToLower(time.Monday.String()):
return time.Monday
case "tue", strings.ToLower(time.Tuesday.String()):
return time.Tuesday
case "wed", strings.ToLower(time.Wednesday.String()):
return time.Wednesday
case "thu", strings.ToLower(time.Thursday.String()):
return time.Thursday
case "fri", strings.ToLower(time.Friday.String()):
return time.Friday
case "sat", strings.ToLower(time.Saturday.String()):
return time.Saturday
case "sun", strings.ToLower(time.Sunday.String()):
return time.Sunday
}
return time.Monday
}
func Set(config *Config) {
cfg = config
}
func Get() *Config {
return cfg
}
func Load(version string) *Config {
config := &Config{}
flag.Parse()
if err := configor.New(&configor.Config{}).Load(config, mustReadConfigLocation()); err != nil {
logbuch.Fatal("failed to read config: %v", err)
}
env = config.Env
config.Version = strings.TrimSpace(version)
config.App.Colors = readColors()
config.Db.Dialect = resolveDbDialect(config.Db.Type)
config.Security.SecureCookie = securecookie.New(
securecookie.GenerateRandomKey(64),
securecookie.GenerateRandomKey(32),
)
if strings.HasSuffix(config.Server.BasePath, "/") {
config.Server.BasePath = config.Server.BasePath[:len(config.Server.BasePath)-1]
}
for k, v := range config.App.CustomLanguages {
if v == "" {
config.App.CustomLanguages[k] = "unknown"
}
}
if config.Sentry.Dsn != "" {
logbuch.Info("enabling sentry integration")
initSentry(config.Sentry, config.IsDev())
}
// some validation checks
if config.Server.ListenIpV4 == "" && config.Server.ListenIpV6 == "" && config.Server.ListenSocket == "" {
logbuch.Fatal("either of listen_ipv4 or listen_ipv6 or listen_socket must be set")
}
if config.Db.MaxConn <= 0 {
logbuch.Fatal("you must allow at least one database connection")
}
if config.Mail.Provider != "" && findString(config.Mail.Provider, emailProviders, "") == "" {
logbuch.Fatal("unknown mail provider '%s'", config.Mail.Provider)
}
if _, err := time.Parse("15:04", config.App.GetWeeklyReportTime()); err != nil {
logbuch.Fatal("invalid interval set for report_time_weekly")
}
if _, err := time.Parse("15:04", config.App.AggregationTime); err != nil {
logbuch.Fatal("invalid interval set for aggregation_time")
}
Set(config)
return Get()
}