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//
// rhimportd
//
// The Radio Helsinki Rivendell Import Daemon
//
//
// Copyright (C) 2015-2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of rhimportd.
//
// rhimportd is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// rhimportd is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with rhimportd. If not, see <http://www.gnu.org/licenses/>.
//
package rhimport
import (
"fmt"
"github.com/golang-basic/go-curl"
"io/ioutil"
"log"
"os"
)
const (
CART_MAX = 999999
CUT_MAX = 999
)
var (
bool2str = map[bool]string{false: "0", true: "1"}
rhl = log.New(os.Stderr, "[rhimport]\t", log.LstdFlags)
rhdl = log.New(ioutil.Discard, "[rhimport-dbg]\t", log.LstdFlags)
)
func init() {
if _, exists := os.LookupEnv("RHIMPORT_DEBUG"); exists {
rhdl.SetOutput(os.Stderr)
}
curl.GlobalInit(curl.GLOBAL_ALL)
fetcherInit()
}
type ProgressCB func(step int, stepName string, progress float64, userdata interface{}) bool
type DoneCB func(Result, interface{}) bool
type Result struct {
ResponseCode int
ErrorString string
Cart uint
Cut uint
}
type Context struct {
conf *Config
rddb *RdDbChan
UserName string
Password string
Trusted bool
ShowId uint
ClearShowCarts bool
GroupName string
Cart uint
ClearCart bool
Cut uint
Channels uint
NormalizationLevel int
AutotrimLevel int
UseMetaData bool
SourceUri string
SourceFile string
DeleteSourceFile bool
DeleteSourceDir bool
ProgressCallBack ProgressCB
ProgressCallBackData interface{}
Cancel <-chan bool
}
func NewContext(conf *Config, rddb *RdDbChan) *Context {
ctx := new(Context)
ctx.conf = conf
ctx.rddb = rddb
ctx.UserName = ""
ctx.Password = ""
ctx.Trusted = false
ctx.ShowId = 0
ctx.ClearShowCarts = false
ctx.GroupName = ""
ctx.Cart = 0
ctx.ClearCart = false
ctx.Cut = 0
ctx.Channels = conf.ImportParamDefaults.Channels
ctx.NormalizationLevel = conf.ImportParamDefaults.NormalizationLevel
ctx.AutotrimLevel = conf.ImportParamDefaults.AutotrimLevel
ctx.UseMetaData = conf.ImportParamDefaults.UseMetaData
ctx.SourceFile = ""
ctx.DeleteSourceFile = false
ctx.DeleteSourceDir = false
ctx.ProgressCallBack = nil
ctx.Cancel = nil
return ctx
}
func (ctx *Context) SanityCheck() error {
if ctx.UserName == "" {
return fmt.Errorf("empty Username is not allowed")
}
if ctx.Password == "" && !ctx.Trusted {
return fmt.Errorf("empty Password on untrusted control interface is not allowed")
}
if ctx.ShowId != 0 {
if ctx.ShowId != 0 && ctx.ShowId > CART_MAX {
return fmt.Errorf("ShowId %d is outside of allowed range (0 < show-id < %d)", ctx.ShowId, CART_MAX)
}
if ctx.Cart != 0 && ctx.Cart > CART_MAX {
return fmt.Errorf("Cart %d is outside of allowed range (0 < cart < %d)", ctx.Cart, CART_MAX)
}
return nil
}
if ctx.GroupName != "" {
ismusic, err := ctx.checkMusicGroup()
if err != nil {
return err
}
if !ismusic {
return fmt.Errorf("supplied GroupName '%s' is not a music pool", ctx.GroupName)
}
if ctx.Cart != 0 || ctx.Cut != 0 {
return fmt.Errorf("Cart and Cut must not be supplied when importing into a music group")
}
return nil
}
if ctx.Cart == 0 {
return fmt.Errorf("either ShowId, PoolName or CartNumber must be supplied")
}
if ctx.Cart > CART_MAX {
return fmt.Errorf("Cart %d is outside of allowed range (0 < cart < %d)", ctx.Cart, CART_MAX)
}
if ctx.Cut != 0 && ctx.Cut > CUT_MAX {
return fmt.Errorf("Cut %d is outside of allowed range (0 < cart < %d)", ctx.Cut, CUT_MAX)
}
if ctx.Channels != 1 && ctx.Channels != 2 {
return fmt.Errorf("channles must be 1 or 2")
}
return nil
}
func (ctx *Context) getPassword(cached bool) (err error) {
ctx.Password, err = ctx.rddb.GetPassword(ctx.UserName, cached)
return
}
func (ctx *Context) getGroupOfCart() (err error) {
ctx.GroupName, err = ctx.rddb.GetGroupOfCart(ctx.Cart)
return
}
func (ctx *Context) getShowInfo() (carts []uint, err error) {
ctx.GroupName, ctx.NormalizationLevel, ctx.AutotrimLevel, carts, err = ctx.rddb.GetShowInfo(ctx.ShowId)
ctx.Channels = 2
ctx.UseMetaData = true
return
}
func (ctx *Context) checkMusicGroup() (bool, error) {
return ctx.rddb.CheckMusicGroup(ctx.GroupName)
}
func (ctx *Context) getMusicInfo() (err error) {
ctx.NormalizationLevel, ctx.AutotrimLevel, err = ctx.rddb.GetMusicInfo(ctx.GroupName)
ctx.Channels = 2
ctx.UseMetaData = true
ctx.Cart = 0
ctx.Cut = 0
return
}
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