/
config.go
103 lines (89 loc) · 2.85 KB
/
config.go
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/*
* Copyright (c) 2016, 1&1 Internet SE
* Written by Jörg Pernfuß <joerg.pernfuss@1und1.de>
* All rights reserved.
*/
package main
import (
"bytes"
"database/sql"
"encoding/json"
"io/ioutil"
"log"
"net/url"
"github.com/asaskevich/govalidator"
"github.com/nahanni/go-ucl"
)
type EyeConfig struct {
Environment string `json:"environment" valid:"alpha"`
ReadOnly bool `json:"readonly,string" valid:"-"`
Volatile bool `json:"volatile,string" valid:"-"`
Daemon EyeDaemon `json:"daemon" valid:"required"`
Database DbConfig `json:"database" valid:"required"`
Soma SomaConfig `json:"soma" valid:"required"`
run EyeRuntime `json:"-"`
}
type DbConfig struct {
Host string `json:"host" valid:"dns"`
User string `json:"user" valid:"alphanum"`
Name string `json:"name" valid:"alphanum"`
Port string `json:"port" valid:"port"`
Pass string `json:"password" valid:"-"`
Timeout string `json:"timeout" valid:"numeric"`
TlsMode string `json:"tlsmode" valid:"alpha"`
}
type SomaConfig struct {
url *url.URL `json:"-"`
Address string `json:"address" valid:"requrl"`
}
type EyeDaemon struct {
url *url.URL `json:"-"`
Listen string `json:"listen" valid:"ip"`
Port string `json:"port" valid:"port"`
Tls bool `json:"tls,string" valid:"-"`
Cert string `json:"cert-file" valid:"optional"`
Key string `json:"key-file" valid:"optional"`
}
type EyeRuntime struct {
conn *sql.DB `json:"-" valid:"-"`
check_item *sql.Stmt `json:"-" valid:"-"`
update_item *sql.Stmt `json:"-" valid:"-"`
check_lookup *sql.Stmt `json:"-" valid:"-"`
insert_lookup *sql.Stmt `json:"-" valid:"-"`
insert_item *sql.Stmt `json:"-" valid:"-"`
delete_item *sql.Stmt `json:"-" valid:"-"`
delete_lookup *sql.Stmt `json:"-" valid:"-"`
get_lookup *sql.Stmt `json:"-" valid:"-"`
item_count *sql.Stmt `json:"-" valid:"-"`
get_config *sql.Stmt `json:"-" valid:"-"`
get_items *sql.Stmt `json:"-" valid:"-"`
retrieve *sql.Stmt `json:"-" valid:"-"`
}
func (c *EyeConfig) readConfigFile(fname string) error {
file, err := ioutil.ReadFile(fname)
if err != nil {
return err
}
log.Printf("Loading configuration from %s", fname)
// UCL parses into map[string]interface{}
fileBytes := bytes.NewBuffer([]byte(file))
parser := ucl.NewParser(fileBytes)
uclData, err := parser.Ucl()
if err != nil {
log.Fatal("UCL error: ", err)
}
// take detour via JSON to load UCL into struct
uclJson, err := json.Marshal(uclData)
if err != nil {
log.Fatal(err)
}
json.Unmarshal([]byte(uclJson), &c)
govalidator.SetFieldsRequiredByDefault(true)
if ok, err := govalidator.ValidateStruct(c); !ok {
return err
}
c.Soma.url, _ = url.Parse(c.Soma.Address)
log.Printf("Configured SOMA base address: %s\n", c.Soma.url.String())
return nil
}
// vim: ts=4 sw=4 sts=4 noet fenc=utf-8 ffs=unix