/
login_recent.go
74 lines (60 loc) · 1.73 KB
/
login_recent.go
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// Copyright 2020 Pichu Chen, The PTT APP Authors
// 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 pttbbs
import (
"bufio"
"fmt"
"log"
"os"
"strings"
"time"
)
// LoginRecentRecord records Login record, please see https://github.com/ptt/pttbbs/blob/446c2bc34867286a2a093615ea69501f32c127e4/mbbsd/mbbsd.c#L1123
type LoginRecentRecord struct {
LoginStartTime time.Time
FromHost string
}
func OpenLoginRecentFile(filename string) ([]*LoginRecentRecord, error) {
file, err := os.Open(filename)
if err != nil {
log.Println(err)
return nil, err
}
ret := []*LoginRecentRecord{}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
// fmt.Println(line)
f, err := NewLoginRecentRecord(line)
if err != nil {
return nil, err
}
ret = append(ret, f)
}
if err := scanner.Err(); err != nil {
log.Fatal(err)
}
return ret, nil
}
func NewLoginRecentRecord(line string) (*LoginRecentRecord, error) {
seg := strings.Split(line, " ")
if len(seg) < 3 {
return nil, fmt.Errorf("format for login recent incorrect")
}
t, err := time.Parse("01/02/2006 15:04:05", seg[0]+" "+seg[1])
if err != nil {
return nil, err
}
return &LoginRecentRecord{
LoginStartTime: t,
FromHost: seg[2],
}, nil
}