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channel.go
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channel.go
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// Copyright 2016 Eryx <evorui аt gmаil dοt cοm>, All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package p1
import (
"sort"
"strings"
"sync"
"time"
"github.com/hooto/httpsrv"
"github.com/lessos/lessgo/types"
"github.com/sysinner/inpack/ipapi"
"github.com/sysinner/inpack/server/data"
)
type Channel struct {
*httpsrv.Controller
}
var (
allowRoles = []uint32{100, 101}
channelMu sync.RWMutex
channelTTL = int64(600)
channelList ipapi.PackChannelList
channelUpdated int64
)
func channelRefresh() {
tn := time.Now().Unix()
if (channelUpdated + channelTTL) > tn {
return
}
channelMu.Lock()
defer channelMu.Unlock()
var (
rs = data.Data.NewRanger(
ipapi.DataChannelKey(""), ipapi.DataChannelKey("")).
SetLimit(100).Exec()
items []*ipapi.PackChannel
)
for _, v := range rs.Items {
var item ipapi.PackChannel
if err := v.JsonDecode(&item); err != nil {
continue
}
items = append(items, &item)
}
channelUpdated = tn
if len(items) > 0 {
sort.Slice(items, func(i, j int) bool {
return strings.Compare(items[i].Meta.Name, items[j].Meta.Name) > 0
})
channelList.Items = items
} else {
channelUpdated -= (channelTTL - 10)
}
}
func (c Channel) ListAction() {
channelRefresh()
rep := ipapi.PackChannelList{}
for _, v := range channelList.Items {
if v.Roles.Read.MatchAny(allowRoles) {
rep.Items = append(rep.Items, v)
}
}
rep.Kind = "PackChannelList"
c.RenderJson(rep)
}
func (c Channel) EntryAction() {
var set ipapi.PackChannel
defer c.RenderJson(&set)
name := c.Params.Value("name")
if !ipapi.ChannelNameRe.MatchString(name) {
set.Error = types.NewErrorMeta("400", "Invalid Channel Name")
return
}
channelRefresh()
for _, v := range channelList.Items {
if v.Meta.Name == name {
set = *v
break
}
}
if set.Meta.Name != name {
set.Error = types.NewErrorMeta("404", "Channel Not Found")
} else {
set.Kind = "PackChannel"
}
}