316 lines
9.4 KiB
Go
316 lines
9.4 KiB
Go
package server
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import (
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"fmt"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"gogs.mikescher.com/BlackForestBytes/goext/timeext"
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"os"
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"reflect"
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"strconv"
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"time"
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)
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type Config struct {
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Namespace string
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BaseURL string `env:"SCN_URL"`
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GinDebug bool `env:"SCN_GINDEBUG"`
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LogLevel zerolog.Level `env:"SCN_LOGLEVEL"`
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ServerIP string `env:"SCN_IP"`
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ServerPort string `env:"SCN_PORT"`
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DBFile string `env:"SCN_DB_FILE"`
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DBJournal string `env:"SCN_DB_JOURNAL"`
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DBTimeout time.Duration `env:"SCN_DB_TIMEOUT"`
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DBMaxOpenConns int `env:"SCN_DB_MAXOPENCONNECTIONS"`
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DBMaxIdleConns int `env:"SCN_DB_MAXIDLECONNECTIONS"`
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DBConnMaxLifetime time.Duration `env:"SCN_DB_CONNEXTIONMAXLIFETIME"`
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DBConnMaxIdleTime time.Duration `env:"SCN_DB_CONNEXTIONMAXIDLETIME"`
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DBCheckForeignKeys bool `env:"SCN_DB_CHECKFOREIGNKEYS"`
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RequestTimeout time.Duration `env:"SCN_REQUEST_TIMEOUT"`
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ReturnRawErrors bool `env:"SCN_ERROR_RETURN"`
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DummyFirebase bool `env:"SCN_DUMMY_FB"`
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DummyGoogleAPI bool `env:"SCN_DUMMY_GOOG"`
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FirebaseTokenURI string
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FirebaseProjectID string
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FirebasePrivKeyID string
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FirebaseClientMail string
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FirebasePrivateKey string
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GoogleAPITokenURI string
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GoogleAPIPrivKeyID string
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GoogleAPIClientMail string
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GoogleAPIPrivateKey string
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GooglePackageName string
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GoogleProProductID string
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}
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var Conf Config
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var configLocHost = func() Config {
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return Config{
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Namespace: "local-host",
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BaseURL: "http://localhost:8080",
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GinDebug: true,
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LogLevel: zerolog.DebugLevel,
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ServerIP: "0.0.0.0",
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ServerPort: "8080",
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DBFile: ".run-data/db.sqlite3",
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DBJournal: "WAL",
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DBTimeout: 5 * time.Second,
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DBCheckForeignKeys: false,
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DBMaxOpenConns: 5,
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DBMaxIdleConns: 5,
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DBConnMaxLifetime: 60 * time.Minute,
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DBConnMaxIdleTime: 60 * time.Minute,
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RequestTimeout: 16 * time.Second,
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ReturnRawErrors: true,
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DummyFirebase: true,
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FirebaseTokenURI: "",
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FirebaseProjectID: "",
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FirebasePrivKeyID: "",
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FirebaseClientMail: "",
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FirebasePrivateKey: "",
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DummyGoogleAPI: true,
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GoogleAPITokenURI: "",
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GoogleAPIPrivKeyID: "",
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GoogleAPIClientMail: "",
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GoogleAPIPrivateKey: "",
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GooglePackageName: "",
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GoogleProProductID: "",
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}
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}
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var configLocDocker = func() Config {
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return Config{
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Namespace: "local-docker",
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BaseURL: "http://localhost:8080",
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GinDebug: true,
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LogLevel: zerolog.DebugLevel,
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ServerIP: "0.0.0.0",
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ServerPort: "80",
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DBFile: "/data/scn_docker.sqlite3",
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DBJournal: "WAL",
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DBTimeout: 5 * time.Second,
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DBCheckForeignKeys: false,
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DBMaxOpenConns: 5,
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DBMaxIdleConns: 5,
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DBConnMaxLifetime: 60 * time.Minute,
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DBConnMaxIdleTime: 60 * time.Minute,
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RequestTimeout: 16 * time.Second,
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ReturnRawErrors: true,
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DummyFirebase: true,
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FirebaseTokenURI: "",
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FirebaseProjectID: "",
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FirebasePrivKeyID: "",
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FirebaseClientMail: "",
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FirebasePrivateKey: "",
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DummyGoogleAPI: true,
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GoogleAPITokenURI: "",
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GoogleAPIPrivKeyID: "",
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GoogleAPIClientMail: "",
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GoogleAPIPrivateKey: "",
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GooglePackageName: "",
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GoogleProProductID: "",
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}
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}
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var configDev = func() Config {
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return Config{
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Namespace: "develop",
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BaseURL: confEnv("BASE_URL"),
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GinDebug: true,
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LogLevel: zerolog.DebugLevel,
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ServerIP: "0.0.0.0",
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ServerPort: "80",
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DBFile: "/data/scn.sqlite3",
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DBJournal: "WAL",
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DBTimeout: 5 * time.Second,
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DBCheckForeignKeys: false,
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DBMaxOpenConns: 5,
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DBMaxIdleConns: 5,
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DBConnMaxLifetime: 60 * time.Minute,
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DBConnMaxIdleTime: 60 * time.Minute,
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RequestTimeout: 16 * time.Second,
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ReturnRawErrors: true,
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DummyFirebase: false,
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FirebaseTokenURI: "https://oauth2.googleapis.com/token",
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FirebaseProjectID: confEnv("FB_PROJECTID"),
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FirebasePrivKeyID: confEnv("FB_PRIVATEKEYID"),
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FirebaseClientMail: confEnv("FB_CLIENTEMAIL"),
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FirebasePrivateKey: confEnv("FB_PRIVATEKEY"),
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DummyGoogleAPI: false,
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GoogleAPITokenURI: "https://oauth2.googleapis.com/token",
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GoogleAPIPrivKeyID: confEnv("GOOG_PRIVATEKEYID"),
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GoogleAPIClientMail: confEnv("GOOG_CLIENTEMAIL"),
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GoogleAPIPrivateKey: confEnv("GOOG_PRIVATEKEY"),
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GooglePackageName: confEnv("GOOG_PACKAGENAME"),
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GoogleProProductID: confEnv("GOOG_PROPRODUCTID"),
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}
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}
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var configStag = func() Config {
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return Config{
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Namespace: "staging",
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BaseURL: confEnv("BASE_URL"),
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GinDebug: true,
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LogLevel: zerolog.DebugLevel,
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ServerIP: "0.0.0.0",
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ServerPort: "80",
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DBFile: "/data/scn.sqlite3",
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DBJournal: "WAL",
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DBTimeout: 5 * time.Second,
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DBCheckForeignKeys: false,
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DBMaxOpenConns: 5,
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DBMaxIdleConns: 5,
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DBConnMaxLifetime: 60 * time.Minute,
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DBConnMaxIdleTime: 60 * time.Minute,
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RequestTimeout: 16 * time.Second,
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ReturnRawErrors: true,
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DummyFirebase: false,
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FirebaseTokenURI: "https://oauth2.googleapis.com/token",
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FirebaseProjectID: confEnv("FB_PROJECTID"),
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FirebasePrivKeyID: confEnv("FB_PRIVATEKEYID"),
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FirebaseClientMail: confEnv("FB_CLIENTEMAIL"),
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FirebasePrivateKey: confEnv("FB_PRIVATEKEY"),
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DummyGoogleAPI: false,
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GoogleAPITokenURI: "https://oauth2.googleapis.com/token",
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GoogleAPIPrivKeyID: confEnv("GOOG_PRIVATEKEYID"),
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GoogleAPIClientMail: confEnv("GOOG_CLIENTEMAIL"),
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GoogleAPIPrivateKey: confEnv("GOOG_PRIVATEKEY"),
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GooglePackageName: confEnv("GOOG_PACKAGENAME"),
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GoogleProProductID: confEnv("GOOG_PROPRODUCTID"),
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}
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}
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var configProd = func() Config {
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return Config{
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Namespace: "production",
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BaseURL: confEnv("SCN_URL"),
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GinDebug: false,
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LogLevel: zerolog.InfoLevel,
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ServerIP: "0.0.0.0",
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ServerPort: "80",
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DBFile: "/data/scn.sqlite3",
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DBJournal: "WAL",
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DBTimeout: 5 * time.Second,
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DBCheckForeignKeys: false,
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DBMaxOpenConns: 5,
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DBMaxIdleConns: 5,
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DBConnMaxLifetime: 60 * time.Minute,
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DBConnMaxIdleTime: 60 * time.Minute,
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RequestTimeout: 16 * time.Second,
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ReturnRawErrors: false,
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DummyFirebase: false,
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FirebaseTokenURI: "https://oauth2.googleapis.com/token",
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FirebaseProjectID: confEnv("SCN_FB_PROJECTID"),
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FirebasePrivKeyID: confEnv("SCN_FB_PRIVATEKEYID"),
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FirebaseClientMail: confEnv("SCN_FB_CLIENTEMAIL"),
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FirebasePrivateKey: confEnv("SCN_FB_PRIVATEKEY"),
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DummyGoogleAPI: false,
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GoogleAPITokenURI: "https://oauth2.googleapis.com/token",
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GoogleAPIPrivKeyID: confEnv("SCN_GOOG_PRIVATEKEYID"),
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GoogleAPIClientMail: confEnv("SCN_GOOG_CLIENTEMAIL"),
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GoogleAPIPrivateKey: confEnv("SCN_GOOG_PRIVATEKEY"),
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GooglePackageName: confEnv("SCN_GOOG_PACKAGENAME"),
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GoogleProProductID: confEnv("SCN_GOOG_PROPRODUCTID"),
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}
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}
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var allConfig = map[string]func() Config{
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"local-host": configLocHost,
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"local-docker": configLocDocker,
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"develop": configDev,
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"staging": configStag,
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"production": configProd,
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}
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func getConfig(ns string) (Config, bool) {
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if ns == "" {
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ns = "local-host"
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}
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if cfn, ok := allConfig[ns]; ok {
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c := cfn()
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parseConfOverride(&c)
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return c, true
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}
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return Config{}, false
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}
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func confEnv(key string) string {
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if v, ok := os.LookupEnv(key); ok {
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return v
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} else {
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log.Fatal().Msg(fmt.Sprintf("Missing required environment variable '%s'", key))
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return ""
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}
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}
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func init() {
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ns := os.Getenv("CONF_NS")
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cfg, ok := getConfig(ns)
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if !ok {
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log.Fatal().Str("ns", ns).Msg("Unknown config-namespace")
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}
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Conf = cfg
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}
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func parseConfOverride(c *Config) {
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rval := reflect.ValueOf(c).Elem()
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rtyp := rval.Type()
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for i := 0; i < rtyp.NumField(); i++ {
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rsfield := rtyp.Field(i)
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rvfield := rval.Field(i)
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envkey := rsfield.Tag.Get("env")
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if envkey == "" {
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continue
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}
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envval, efound := os.LookupEnv(envkey)
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if !efound {
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continue
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}
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if rvfield.Kind() == reflect.String {
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rvfield.Set(reflect.ValueOf(envval))
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fmt.Printf("[CONF] Overwrite config '%s' with '%s'\n", envkey, envval)
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} else if rvfield.Type() == reflect.TypeOf(zerolog.Level(0)) {
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envint, err := strconv.ParseInt(envval, 10, 8)
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if err != nil {
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panic(fmt.Sprintf("Failed to parse env-config variable '%s' to int (value := '%s')", envkey, envval))
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}
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if envint < -1 || envint > 7 {
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panic(fmt.Sprintf("Failed to parse zerolog-level (invalid number: %d)", envint))
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}
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lvl := zerolog.Level(envint)
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rvfield.Set(reflect.ValueOf(lvl))
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fmt.Printf("[CONF] Overwrite config '%s' with '%s'\n", envkey, lvl.String())
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} else if rvfield.Type() == reflect.TypeOf(time.Duration(0)) {
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dur, err := timeext.ParseDurationShortString(envval)
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if err != nil {
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panic(fmt.Sprintf("Failed to parse env-config variable '%s' to duration (value := '%s')", envkey, envval))
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}
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rvfield.Set(reflect.ValueOf(dur))
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fmt.Printf("[CONF] Overwrite config '%s' with '%s'\n", envkey, dur.String())
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} else {
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panic(fmt.Sprintf("Unknown kind/type in config: [ %s | %s ]", rvfield.Kind().String(), rvfield.Type().String()))
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}
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}
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}
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