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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"
"io/ioutil"
"log"
"os"
"code.helsinki.at/rhrd-go/rddb"
"github.com/andelf/go-curl"
)
const (
CART_MAX = 999999
CUT_MAX = 999
// not sure if rdxport.cgi can handle filesizes > MAX(INT32)
FILESIZE_MAX = (2 * 1024 * 1024 * 1024) - 1
)
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, current, total float64, userdata interface{}) bool
type DoneCB func(result Result, userdata interface{}) bool
type Result struct {
ResponseCode int
ErrorString string
Cart uint
Cut uint
SourceFile string
}
type FilePolicy int
const (
Auto FilePolicy = iota
Keep
Delete
DeleteWithDir
)
func (p *FilePolicy) String() string {
switch *p {
case Auto:
return "auto"
case Keep:
return "keep"
case Delete:
return "delete"
case DeleteWithDir:
return "delete-with-dir"
}
return "unknown"
}
func (p *FilePolicy) FromString(str string) error {
switch str {
case "auto":
*p = Auto
case "keep":
*p = Keep
case "delete":
*p = Delete
case "delete-with-dir":
*p = DeleteWithDir
default:
return fmt.Errorf("must be on of: auto, keep, delete or delete-with-dir")
}
return nil
}
type Context struct {
conf *Config
db *rddb.DBChan
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
AttachmentChan <-chan []byte
SourceFile string
DeleteSourceFile bool
DeleteSourceDir bool
SourceFilePolicy FilePolicy
ProgressCallBack ProgressCB
ProgressCallBackData interface{}
Cancel <-chan bool
}
func NewContext(conf *Config, db *rddb.DBChan) *Context {
ctx := new(Context)
ctx.conf = conf
ctx.db = db
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.AttachmentChan = nil
ctx.SourceFile = ""
ctx.DeleteSourceFile = false
ctx.DeleteSourceDir = false
ctx.SourceFilePolicy = Auto
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.db.GetPassword(ctx.UserName, cached)
return
}
func (ctx *Context) CheckPassword() (bool, error) {
return ctx.db.CheckPassword(ctx.UserName, ctx.Password)
}
func (ctx *Context) getGroupOfCart() (err error) {
ctx.GroupName, err = ctx.db.GetGroupOfCart(ctx.Cart)
return
}
func (ctx *Context) getShowInfo() (carts []uint, err error) {
ctx.GroupName, ctx.NormalizationLevel, ctx.AutotrimLevel, carts, err = ctx.db.GetShowInfo(ctx.ShowId)
ctx.Channels = 2
ctx.UseMetaData = true
return
}
func (ctx *Context) checkMusicGroup() (bool, error) {
return ctx.db.CheckMusicGroup(ctx.GroupName)
}
func (ctx *Context) getMusicInfo() (err error) {
ctx.NormalizationLevel, ctx.AutotrimLevel, err = ctx.db.GetMusicInfo(ctx.GroupName)
ctx.Channels = 2
ctx.UseMetaData = true
ctx.Cart = 0
ctx.Cut = 0
return
}
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