2022-09-08 15:12:06 +00:00
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/*
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2023-01-18 17:19:29 +00:00
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Copyright © 2023 Seednode <seednode@seedno.de>
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2022-09-08 15:12:06 +00:00
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*/
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package cmd
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import (
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2023-02-05 05:44:31 +00:00
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"encoding/gob"
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2023-01-21 22:08:59 +00:00
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"encoding/json"
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2023-02-05 05:44:31 +00:00
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"errors"
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2022-09-10 23:03:04 +00:00
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"fmt"
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2022-09-08 15:12:06 +00:00
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"io"
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2022-10-29 00:49:49 +00:00
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"math/rand"
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2022-09-08 15:12:06 +00:00
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"net/http"
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2022-09-08 20:30:51 +00:00
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"net/url"
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2022-09-08 15:57:59 +00:00
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"os"
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2022-09-16 18:45:33 +00:00
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"path/filepath"
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2022-10-23 18:45:49 +00:00
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"regexp"
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2022-10-23 21:29:58 +00:00
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"runtime"
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2023-01-21 22:08:59 +00:00
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"sort"
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2022-09-08 15:12:06 +00:00
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"strconv"
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2022-09-08 20:57:52 +00:00
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"strings"
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2023-01-21 04:42:44 +00:00
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"sync"
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2022-09-10 23:03:04 +00:00
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"time"
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2022-11-10 05:17:19 +00:00
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2023-02-05 20:34:22 +00:00
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"github.com/klauspost/compress/zstd"
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2022-11-10 05:17:19 +00:00
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"github.com/yosssi/gohtml"
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2022-09-08 15:12:06 +00:00
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)
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2023-02-05 05:44:31 +00:00
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var (
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ErrIndexNotExist = errors.New(`specified index does not exist`)
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)
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2022-10-20 22:12:29 +00:00
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const (
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2023-01-25 01:06:15 +00:00
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LogDate string = `2006-01-02T15:04:05.000-07:00`
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Prefix string = `/src`
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RedirectStatusCode int = http.StatusSeeOther
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2022-10-20 22:12:29 +00:00
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)
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2022-10-20 19:22:01 +00:00
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2023-01-25 01:06:15 +00:00
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type Regexes struct {
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2023-01-27 16:06:10 +00:00
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alphanumeric *regexp.Regexp
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filename *regexp.Regexp
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units *regexp.Regexp
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2023-01-25 01:06:15 +00:00
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}
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2022-10-20 00:27:11 +00:00
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type Filters struct {
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2023-01-27 16:06:10 +00:00
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includes []string
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excludes []string
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2022-10-20 00:27:11 +00:00
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}
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func (f *Filters) IsEmpty() bool {
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2022-12-20 23:12:37 +00:00
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return !(f.HasIncludes() || f.HasExcludes())
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2022-10-20 00:27:11 +00:00
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}
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2022-10-20 15:38:32 +00:00
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func (f *Filters) HasIncludes() bool {
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2023-01-27 16:06:10 +00:00
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return len(f.includes) != 0
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2022-10-20 15:38:32 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func (f *Filters) Includes() string {
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return strings.Join(f.includes, ",")
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2022-10-20 00:27:11 +00:00
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}
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2022-10-20 15:38:32 +00:00
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func (f *Filters) HasExcludes() bool {
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2023-01-27 16:06:10 +00:00
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return len(f.excludes) != 0
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2022-10-20 15:38:32 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func (f *Filters) Excludes() string {
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return strings.Join(f.excludes, ",")
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2022-10-20 00:27:11 +00:00
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}
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2023-01-21 22:08:59 +00:00
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type Index struct {
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2023-01-27 16:06:10 +00:00
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mutex sync.RWMutex
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list []string
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2023-01-21 22:08:59 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func (i *Index) Index() []string {
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i.mutex.RLock()
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val := i.list
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i.mutex.RUnlock()
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2023-01-21 22:08:59 +00:00
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return val
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}
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2023-01-27 16:06:10 +00:00
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func (i *Index) setIndex(val []string) {
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i.mutex.Lock()
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i.list = val
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i.mutex.Unlock()
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2023-01-21 22:08:59 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func (i *Index) generateCache(args []string) {
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i.mutex.Lock()
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i.list = []string{}
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i.mutex.Unlock()
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2023-01-21 22:08:59 +00:00
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2023-01-27 16:06:10 +00:00
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fileList(args, &Filters{}, "", i)
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2023-02-05 05:44:31 +00:00
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2023-02-05 20:34:22 +00:00
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if cache && cacheFile != "" {
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i.Export(cacheFile)
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2023-02-05 05:44:31 +00:00
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}
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2023-01-21 22:08:59 +00:00
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}
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func (i *Index) IsEmpty() bool {
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2023-01-27 16:06:10 +00:00
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i.mutex.RLock()
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length := len(i.list)
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i.mutex.RUnlock()
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2023-01-21 22:08:59 +00:00
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return length == 0
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}
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2023-02-05 05:44:31 +00:00
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func (i *Index) Export(path string) error {
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file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
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if err != nil {
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return err
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}
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defer file.Close()
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2023-02-05 20:34:22 +00:00
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z, err := zstd.NewWriter(file)
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if err != nil {
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return err
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}
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defer z.Close()
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enc := gob.NewEncoder(z)
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2023-02-05 05:44:31 +00:00
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enc.Encode(&i.list)
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return nil
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}
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func (i *Index) Import(path string) error {
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file, err := os.OpenFile(path, os.O_RDONLY, 0600)
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if os.IsNotExist(err) {
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return ErrIndexNotExist
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} else if err != nil {
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return err
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}
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defer file.Close()
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2023-02-05 20:34:22 +00:00
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z, err := zstd.NewReader(file)
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if err != nil {
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return err
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}
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defer z.Close()
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dec := gob.NewDecoder(z)
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2023-02-05 05:44:31 +00:00
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err = dec.Decode(&i.list)
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if err != nil {
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return err
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}
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return nil
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}
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2023-01-21 22:08:59 +00:00
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type ServeStats struct {
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2023-01-27 16:06:10 +00:00
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mutex sync.RWMutex
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list []string
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count map[string]uint64
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size map[string]string
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times map[string][]string
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2023-01-21 22:08:59 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func (s *ServeStats) incrementCounter(image string, timestamp time.Time, filesize string) {
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s.mutex.Lock()
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2023-01-21 22:08:59 +00:00
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2023-01-27 16:06:10 +00:00
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s.count[image]++
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2023-01-21 22:08:59 +00:00
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2023-01-27 16:06:10 +00:00
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s.times[image] = append(s.times[image], timestamp.Format(LogDate))
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2023-01-21 22:08:59 +00:00
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2023-01-27 16:06:10 +00:00
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_, exists := s.size[image]
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2023-01-21 22:08:59 +00:00
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if !exists {
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2023-01-27 16:06:10 +00:00
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s.size[image] = filesize
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2023-01-21 22:08:59 +00:00
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}
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2023-01-27 16:06:10 +00:00
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if !contains(s.list, image) {
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s.list = append(s.list, image)
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2023-01-21 22:08:59 +00:00
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}
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2023-01-27 16:06:10 +00:00
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s.mutex.Unlock()
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2023-01-21 22:08:59 +00:00
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}
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func (s *ServeStats) ListImages() ([]byte, error) {
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2023-01-27 16:06:10 +00:00
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s.mutex.RLock()
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2023-01-21 22:08:59 +00:00
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2023-02-06 18:23:59 +00:00
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sortedList := &ServeStats{
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mutex: sync.RWMutex{},
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list: s.list,
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count: s.count,
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size: s.size,
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times: s.times,
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}
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s.mutex.RUnlock()
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2023-01-21 22:08:59 +00:00
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2023-02-06 18:23:59 +00:00
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sort.SliceStable(sortedList.list, func(p, q int) bool {
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return sortedList.list[p] < sortedList.list[q]
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2023-01-21 22:08:59 +00:00
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})
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2023-01-27 16:06:10 +00:00
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a := []timesServed{}
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2023-01-21 22:08:59 +00:00
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2023-02-06 18:23:59 +00:00
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for _, image := range sortedList.list {
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a = append(a, timesServed{image, sortedList.count[image], sortedList.size[image], sortedList.times[image]})
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2023-01-21 22:08:59 +00:00
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}
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r, err := json.MarshalIndent(a, "", " ")
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if err != nil {
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return []byte{}, err
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}
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return r, nil
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}
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2023-01-27 16:06:10 +00:00
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type timesServed struct {
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2023-01-25 01:06:15 +00:00
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File string
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Served uint64
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Size string
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Times []string
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2023-01-24 18:03:26 +00:00
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}
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2022-11-10 06:26:21 +00:00
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func notFound(w http.ResponseWriter, r *http.Request, filePath string) error {
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startTime := time.Now()
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2022-09-10 23:03:04 +00:00
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2023-01-27 19:17:13 +00:00
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if verbose {
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2023-01-24 16:13:09 +00:00
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fmt.Printf("%s | Unavailable file %s requested by %s\n",
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2023-01-25 01:06:15 +00:00
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startTime.Format(LogDate),
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2022-11-10 06:26:21 +00:00
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filePath,
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r.RemoteAddr,
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)
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2022-09-26 17:31:45 +00:00
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}
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2022-10-29 00:09:05 +00:00
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w.WriteHeader(404)
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w.Header().Add("Content-Type", "text/html")
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2022-11-10 06:26:21 +00:00
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var htmlBody strings.Builder
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htmlBody.WriteString(`<!DOCTYPE html><html lang="en"><head>`)
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htmlBody.WriteString(`<style>a{display:block;height:100%;width:100%;text-decoration:none;color:inherit;cursor:auto;}</style>`)
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htmlBody.WriteString(`<title>Not Found</title></head>`)
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htmlBody.WriteString(`<body><a href="/">404 page not found</a></body></html>`)
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_, err := io.WriteString(w, gohtml.Format(htmlBody.String()))
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2022-10-29 00:09:05 +00:00
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if err != nil {
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return err
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}
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return nil
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}
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2023-01-27 16:06:10 +00:00
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func refreshInterval(r *http.Request, Regexes *Regexes) (int64, string) {
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2022-11-10 16:09:39 +00:00
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refreshInterval := r.URL.Query().Get("refresh")
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2023-01-27 16:06:10 +00:00
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if !Regexes.units.MatchString(refreshInterval) {
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2023-01-18 15:58:14 +00:00
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return 0, "0ms"
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}
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2022-11-11 15:19:53 +00:00
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2023-01-18 15:58:14 +00:00
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duration, err := time.ParseDuration(refreshInterval)
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if err != nil {
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return 0, "0ms"
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2022-11-10 16:09:39 +00:00
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}
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2023-02-07 13:39:04 +00:00
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return duration.Milliseconds(), refreshInterval
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2023-01-24 18:03:26 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func sortOrder(r *http.Request) string {
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2022-11-10 16:09:39 +00:00
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sortOrder := r.URL.Query().Get("sort")
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2022-11-11 15:19:53 +00:00
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if sortOrder == "asc" || sortOrder == "desc" {
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return sortOrder
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2022-11-10 16:09:39 +00:00
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}
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2022-11-11 15:19:53 +00:00
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return ""
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2022-11-10 16:09:39 +00:00
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}
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2023-01-27 16:06:10 +00:00
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func splitQueryParams(query string, Regexes *Regexes) []string {
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2022-11-10 19:57:38 +00:00
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results := []string{}
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2022-10-20 01:37:12 +00:00
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if query == "" {
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2022-11-10 19:57:38 +00:00
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return results
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2022-10-20 01:37:12 +00:00
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}
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2022-10-20 15:38:32 +00:00
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params := strings.Split(query, ",")
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for i := 0; i < len(params); i++ {
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2023-01-27 16:06:10 +00:00
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if Regexes.alphanumeric.MatchString(params[i]) {
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2022-11-10 19:57:38 +00:00
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results = append(results, strings.ToLower(params[i]))
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2022-11-10 16:09:39 +00:00
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}
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2022-10-20 15:38:32 +00:00
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}
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|
2022-11-10 19:57:38 +00:00
|
|
|
return results
|
2022-10-20 01:37:12 +00:00
|
|
|
}
|
|
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
func generateQueryParams(filters *Filters, sortOrder, refreshInterval string) string {
|
2022-11-09 01:24:49 +00:00
|
|
|
var hasParams bool
|
|
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
var queryParams strings.Builder
|
|
|
|
|
|
|
|
|
|
queryParams.WriteString("?")
|
2022-11-09 01:24:49 +00:00
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
if filtering {
|
2022-11-10 06:04:47 +00:00
|
|
|
queryParams.WriteString("include=")
|
2022-11-09 01:24:49 +00:00
|
|
|
if filters.HasIncludes() {
|
2023-01-27 16:06:10 +00:00
|
|
|
queryParams.WriteString(filters.Includes())
|
2022-11-09 01:24:49 +00:00
|
|
|
}
|
|
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
queryParams.WriteString("&exclude=")
|
2022-11-09 01:24:49 +00:00
|
|
|
if filters.HasExcludes() {
|
2023-01-27 16:06:10 +00:00
|
|
|
queryParams.WriteString(filters.Excludes())
|
2022-11-09 01:24:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
hasParams = true
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
if sorting {
|
2022-11-09 01:24:49 +00:00
|
|
|
if hasParams {
|
2022-11-10 06:04:47 +00:00
|
|
|
queryParams.WriteString("&")
|
2022-11-09 01:24:49 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-24 16:13:09 +00:00
|
|
|
queryParams.WriteString(fmt.Sprintf("sort=%s", sortOrder))
|
2022-11-09 01:24:49 +00:00
|
|
|
|
|
|
|
|
hasParams = true
|
|
|
|
|
}
|
|
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
if hasParams {
|
|
|
|
|
queryParams.WriteString("&")
|
2022-10-20 01:37:12 +00:00
|
|
|
}
|
2023-01-24 16:13:09 +00:00
|
|
|
queryParams.WriteString(fmt.Sprintf("refresh=%s", refreshInterval))
|
2022-10-20 01:37:12 +00:00
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
return queryParams.String()
|
2022-10-20 01:37:12 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
func stripQueryParams(u string) (string, error) {
|
|
|
|
|
uri, err := url.Parse(u)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return "", err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
uri.RawQuery = ""
|
|
|
|
|
|
|
|
|
|
escapedUri, err := url.QueryUnescape(uri.String())
|
|
|
|
|
if err != nil {
|
|
|
|
|
return "", err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if runtime.GOOS == "windows" {
|
|
|
|
|
return strings.TrimPrefix(escapedUri, "/"), nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return escapedUri, nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func generateFilePath(filePath string) string {
|
|
|
|
|
var htmlBody strings.Builder
|
|
|
|
|
|
|
|
|
|
htmlBody.WriteString(Prefix)
|
|
|
|
|
if runtime.GOOS == "windows" {
|
|
|
|
|
htmlBody.WriteString(`/`)
|
|
|
|
|
}
|
|
|
|
|
htmlBody.WriteString(filePath)
|
|
|
|
|
|
|
|
|
|
return htmlBody.String()
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func refererToUri(referer string) string {
|
|
|
|
|
parts := strings.SplitAfterN(referer, "/", 4)
|
|
|
|
|
|
|
|
|
|
if len(parts) < 4 {
|
|
|
|
|
return ""
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return "/" + parts[3]
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
func realIP(r *http.Request) string {
|
2023-01-25 01:06:15 +00:00
|
|
|
remoteAddr := strings.SplitAfter(r.RemoteAddr, ":")
|
|
|
|
|
|
|
|
|
|
if len(remoteAddr) < 1 {
|
|
|
|
|
return r.RemoteAddr
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
remotePort := remoteAddr[len(remoteAddr)-1]
|
|
|
|
|
|
|
|
|
|
cfIP := r.Header.Get("Cf-Connecting-Ip")
|
|
|
|
|
xRealIp := r.Header.Get("X-Real-Ip")
|
|
|
|
|
|
|
|
|
|
switch {
|
|
|
|
|
case cfIP != "":
|
|
|
|
|
return cfIP + ":" + remotePort
|
|
|
|
|
case xRealIp != "":
|
|
|
|
|
return xRealIp + ":" + remotePort
|
|
|
|
|
default:
|
|
|
|
|
return r.RemoteAddr
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
func serveHtml(w http.ResponseWriter, r *http.Request, filePath string, dimensions *Dimensions, filters *Filters, Regexes *Regexes) error {
|
2022-09-16 18:45:33 +00:00
|
|
|
fileName := filepath.Base(filePath)
|
2022-09-08 20:57:52 +00:00
|
|
|
|
|
|
|
|
w.Header().Add("Content-Type", "text/html")
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
sortOrder := sortOrder(r)
|
2022-11-09 01:24:49 +00:00
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
refreshTimer, refreshInterval := refreshInterval(r, Regexes)
|
2022-11-10 19:57:38 +00:00
|
|
|
|
2022-11-10 16:09:39 +00:00
|
|
|
queryParams := generateQueryParams(filters, sortOrder, refreshInterval)
|
2022-11-09 01:24:49 +00:00
|
|
|
|
2022-11-10 05:33:13 +00:00
|
|
|
var htmlBody strings.Builder
|
2022-11-10 05:53:02 +00:00
|
|
|
htmlBody.WriteString(`<!DOCTYPE html><html lang="en"><head>`)
|
2022-11-11 05:24:14 +00:00
|
|
|
htmlBody.WriteString(`<style>html,body{margin:0;padding:0;height:100%;}`)
|
|
|
|
|
htmlBody.WriteString(`a{display:block;height:100%;width:100%;text-decoration:none;}`)
|
|
|
|
|
htmlBody.WriteString(`img{margin:auto;display:block;max-width:97%;max-height:97%;object-fit:scale-down;`)
|
|
|
|
|
htmlBody.WriteString(`position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);}</style>`)
|
2023-01-24 16:13:09 +00:00
|
|
|
htmlBody.WriteString(fmt.Sprintf(`<title>%s (%dx%d)</title>`,
|
2022-11-10 05:33:13 +00:00
|
|
|
fileName,
|
2023-01-27 16:06:10 +00:00
|
|
|
dimensions.width,
|
|
|
|
|
dimensions.height))
|
2022-11-10 05:33:13 +00:00
|
|
|
htmlBody.WriteString(`</head><body>`)
|
2023-01-18 15:58:14 +00:00
|
|
|
if refreshInterval != "0ms" {
|
2023-01-24 16:13:09 +00:00
|
|
|
htmlBody.WriteString(fmt.Sprintf("<script>window.onload = function(){setInterval(function(){window.location.href = '/%s';}, %d);};</script>",
|
2022-11-10 05:17:19 +00:00
|
|
|
queryParams,
|
2022-11-10 05:33:13 +00:00
|
|
|
refreshTimer))
|
2022-11-09 01:24:49 +00:00
|
|
|
}
|
2023-01-24 16:13:09 +00:00
|
|
|
htmlBody.WriteString(fmt.Sprintf(`<a href="/%s"><img src="%s" width="%d" height="%d" alt="Roulette selected: %s"></a>`,
|
2022-11-10 15:38:40 +00:00
|
|
|
queryParams,
|
|
|
|
|
generateFilePath(filePath),
|
2023-01-27 16:06:10 +00:00
|
|
|
dimensions.width,
|
|
|
|
|
dimensions.height,
|
2022-11-10 15:38:40 +00:00
|
|
|
fileName))
|
2022-11-10 05:33:13 +00:00
|
|
|
htmlBody.WriteString(`</body></html>`)
|
2022-09-09 00:11:07 +00:00
|
|
|
|
2022-11-10 06:04:47 +00:00
|
|
|
_, err := io.WriteString(w, gohtml.Format(htmlBody.String()))
|
2022-09-08 20:57:52 +00:00
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
2022-09-08 15:12:06 +00:00
|
|
|
|
2022-09-08 20:57:52 +00:00
|
|
|
return nil
|
2022-09-08 15:12:06 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
func serveStaticFile(w http.ResponseWriter, r *http.Request, paths []string, stats *ServeStats) error {
|
2022-11-10 21:34:07 +00:00
|
|
|
prefixedFilePath, err := stripQueryParams(r.URL.Path)
|
2022-09-26 17:31:45 +00:00
|
|
|
if err != nil {
|
|
|
|
|
return err
|
2022-09-08 20:57:52 +00:00
|
|
|
}
|
2022-09-10 21:17:55 +00:00
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
filePath, err := filepath.EvalSymlinks(strings.TrimPrefix(prefixedFilePath, Prefix))
|
2022-10-25 05:06:57 +00:00
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
2022-09-08 20:57:52 +00:00
|
|
|
|
2022-09-26 17:31:45 +00:00
|
|
|
if !pathIsValid(filePath, paths) {
|
2022-11-10 06:26:21 +00:00
|
|
|
notFound(w, r, filePath)
|
|
|
|
|
|
|
|
|
|
return nil
|
2022-09-08 20:57:52 +00:00
|
|
|
}
|
2022-09-08 15:12:06 +00:00
|
|
|
|
2022-09-26 17:31:45 +00:00
|
|
|
exists, err := fileExists(filePath)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
2022-09-10 21:17:55 +00:00
|
|
|
|
2022-09-26 17:31:45 +00:00
|
|
|
if !exists {
|
2022-11-10 06:26:21 +00:00
|
|
|
notFound(w, r, filePath)
|
2022-10-04 02:35:02 +00:00
|
|
|
|
|
|
|
|
return nil
|
2022-09-08 20:57:52 +00:00
|
|
|
}
|
|
|
|
|
|
2022-10-20 22:55:25 +00:00
|
|
|
startTime := time.Now()
|
2022-09-10 23:03:04 +00:00
|
|
|
|
2022-09-08 20:57:52 +00:00
|
|
|
buf, err := os.ReadFile(filePath)
|
2022-09-08 15:12:06 +00:00
|
|
|
if err != nil {
|
2022-09-08 20:57:52 +00:00
|
|
|
return err
|
2022-09-08 15:12:06 +00:00
|
|
|
}
|
2022-09-08 20:57:52 +00:00
|
|
|
|
|
|
|
|
w.Write(buf)
|
|
|
|
|
|
2023-01-21 00:14:07 +00:00
|
|
|
fileSize := humanReadableSize(len(buf))
|
|
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
if verbose {
|
2023-01-24 16:13:09 +00:00
|
|
|
fmt.Printf("%s | Served %s (%s) to %s in %s\n",
|
2023-01-25 01:06:15 +00:00
|
|
|
startTime.Format(LogDate),
|
2022-10-20 22:55:25 +00:00
|
|
|
filePath,
|
2023-01-21 00:14:07 +00:00
|
|
|
fileSize,
|
2023-01-27 16:06:10 +00:00
|
|
|
realIP(r),
|
2022-10-20 22:55:25 +00:00
|
|
|
time.Since(startTime).Round(time.Microsecond),
|
|
|
|
|
)
|
2022-09-10 21:17:55 +00:00
|
|
|
}
|
|
|
|
|
|
2023-02-05 20:34:22 +00:00
|
|
|
if statistics {
|
2023-01-27 16:06:10 +00:00
|
|
|
stats.incrementCounter(filePath, startTime, fileSize)
|
2023-01-21 00:14:07 +00:00
|
|
|
}
|
|
|
|
|
|
2022-09-08 20:57:52 +00:00
|
|
|
return nil
|
2022-09-08 15:12:06 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
func serveCacheClearHandler(args []string, index *Index) http.HandlerFunc {
|
2023-01-18 18:11:23 +00:00
|
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
2023-01-27 16:06:10 +00:00
|
|
|
index.generateCache(args)
|
2023-01-25 01:06:15 +00:00
|
|
|
|
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
|
w.Header().Set("Content-Type", "text/plain")
|
|
|
|
|
w.Write([]byte("Ok"))
|
2023-01-18 18:11:23 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
func serveStatsHandler(args []string, stats *ServeStats) http.HandlerFunc {
|
2023-01-19 18:07:15 +00:00
|
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
2023-01-25 01:06:15 +00:00
|
|
|
w.WriteHeader(http.StatusOK)
|
2023-01-19 18:07:15 +00:00
|
|
|
w.Header().Set("Content-Type", "application/json")
|
|
|
|
|
|
2023-01-21 22:37:32 +00:00
|
|
|
startTime := time.Now()
|
|
|
|
|
|
2023-01-19 18:07:15 +00:00
|
|
|
response, err := stats.ListImages()
|
|
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-19 18:07:15 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-21 22:37:32 +00:00
|
|
|
w.Write(response)
|
|
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
if verbose {
|
2023-01-24 16:13:09 +00:00
|
|
|
fmt.Printf("%s | Served statistics page (%s) to %s in %s\n",
|
2023-01-25 01:06:15 +00:00
|
|
|
startTime.Format(LogDate),
|
2023-01-21 22:37:32 +00:00
|
|
|
humanReadableSize(len(response)),
|
2023-01-27 16:06:10 +00:00
|
|
|
realIP(r),
|
2023-01-21 22:37:32 +00:00
|
|
|
time.Since(startTime).Round(time.Microsecond),
|
|
|
|
|
)
|
|
|
|
|
}
|
2023-01-19 18:07:15 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
func serveStaticFileHandler(paths []string, stats *ServeStats) http.HandlerFunc {
|
|
|
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
err := serveStaticFile(w, r, paths, stats)
|
|
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
2023-01-20 02:31:02 +00:00
|
|
|
}
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
2023-01-20 02:31:02 +00:00
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
func serveHtmlHandler(paths []string, Regexes *Regexes, index *Index) http.HandlerFunc {
|
2023-01-25 01:06:15 +00:00
|
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
refererUri, err := stripQueryParams(refererToUri(r.Referer()))
|
|
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
2023-01-21 04:42:44 +00:00
|
|
|
|
2023-01-25 01:06:15 +00:00
|
|
|
filters := &Filters{
|
2023-01-27 16:06:10 +00:00
|
|
|
includes: splitQueryParams(r.URL.Query().Get("include"), Regexes),
|
|
|
|
|
excludes: splitQueryParams(r.URL.Query().Get("exclude"), Regexes),
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
sortOrder := sortOrder(r)
|
2023-01-25 01:06:15 +00:00
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
_, refreshInterval := refreshInterval(r, Regexes)
|
2023-01-25 01:06:15 +00:00
|
|
|
|
|
|
|
|
if r.URL.Path == "/" {
|
|
|
|
|
var filePath string
|
|
|
|
|
var err error
|
|
|
|
|
|
|
|
|
|
if refererUri != "" {
|
2023-01-27 16:06:10 +00:00
|
|
|
filePath, err = nextFile(refererUri, sortOrder, Regexes)
|
2023-01-25 01:06:15 +00:00
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if filePath == "" {
|
2023-01-27 16:06:10 +00:00
|
|
|
filePath, err = newFile(paths, filters, sortOrder, Regexes, index)
|
2023-01-25 01:06:15 +00:00
|
|
|
switch {
|
|
|
|
|
case err != nil && err == ErrNoImagesFound:
|
|
|
|
|
notFound(w, r, filePath)
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
case err != nil:
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
queryParams := generateQueryParams(filters, sortOrder, refreshInterval)
|
|
|
|
|
|
|
|
|
|
newUrl := fmt.Sprintf("http://%s%s%s",
|
|
|
|
|
r.Host,
|
|
|
|
|
preparePath(filePath),
|
|
|
|
|
queryParams,
|
|
|
|
|
)
|
|
|
|
|
http.Redirect(w, r, newUrl, RedirectStatusCode)
|
|
|
|
|
} else {
|
|
|
|
|
filePath := r.URL.Path
|
|
|
|
|
|
|
|
|
|
if runtime.GOOS == "windows" {
|
|
|
|
|
filePath = strings.TrimPrefix(filePath, "/")
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
exists, err := fileExists(filePath)
|
|
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
if !exists {
|
|
|
|
|
notFound(w, r, filePath)
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
image, err := isImage(filePath)
|
|
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
if !image {
|
|
|
|
|
notFound(w, r, filePath)
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
dimensions, err := imageDimensions(filePath)
|
2023-01-25 01:06:15 +00:00
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
err = serveHtml(w, r, filePath, dimensions, filters, Regexes)
|
2023-01-25 01:06:15 +00:00
|
|
|
if err != nil {
|
2023-02-07 13:39:04 +00:00
|
|
|
fmt.Println(err)
|
|
|
|
|
return
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func doNothing(http.ResponseWriter, *http.Request) {}
|
|
|
|
|
|
|
|
|
|
func ServePage(args []string) error {
|
|
|
|
|
fmt.Printf("roulette v%s\n\n", Version)
|
|
|
|
|
|
|
|
|
|
paths, err := normalizePaths(args)
|
2023-01-24 18:03:26 +00:00
|
|
|
if err != nil {
|
2023-01-25 01:06:15 +00:00
|
|
|
return err
|
2023-01-20 02:31:02 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
Regexes := &Regexes{
|
|
|
|
|
filename: regexp.MustCompile(`(.+)([0-9]{3})(\..+)`),
|
|
|
|
|
alphanumeric: regexp.MustCompile(`^[a-zA-Z0-9]*$`),
|
|
|
|
|
units: regexp.MustCompile(`^[0-9]+(ns|us|µs|ms|s|m|h)$`),
|
2022-09-16 19:45:54 +00:00
|
|
|
}
|
2022-09-26 17:31:45 +00:00
|
|
|
|
2023-02-05 05:44:31 +00:00
|
|
|
rand.New(rand.NewSource(time.Now().UnixNano()))
|
2023-01-25 01:06:15 +00:00
|
|
|
|
|
|
|
|
index := &Index{
|
2023-01-27 16:06:10 +00:00
|
|
|
mutex: sync.RWMutex{},
|
|
|
|
|
list: []string{},
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
if cache {
|
2023-02-05 05:44:31 +00:00
|
|
|
skipIndex := false
|
|
|
|
|
|
2023-02-05 20:34:22 +00:00
|
|
|
if cacheFile != "" {
|
|
|
|
|
err = index.Import(cacheFile)
|
2023-02-05 05:44:31 +00:00
|
|
|
switch err {
|
|
|
|
|
case ErrIndexNotExist:
|
|
|
|
|
case nil:
|
|
|
|
|
skipIndex = true
|
|
|
|
|
default:
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !skipIndex {
|
|
|
|
|
index.generateCache(args)
|
|
|
|
|
}
|
2023-01-25 01:06:15 +00:00
|
|
|
|
|
|
|
|
http.Handle("/_/clear_cache", serveCacheClearHandler(args, index))
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
stats := &ServeStats{
|
2023-01-27 16:06:10 +00:00
|
|
|
mutex: sync.RWMutex{},
|
|
|
|
|
list: []string{},
|
|
|
|
|
count: make(map[string]uint64),
|
|
|
|
|
size: make(map[string]string),
|
|
|
|
|
times: make(map[string][]string),
|
2023-01-25 01:06:15 +00:00
|
|
|
}
|
|
|
|
|
|
2023-01-27 16:06:10 +00:00
|
|
|
http.Handle("/", serveHtmlHandler(paths, Regexes, index))
|
2023-01-25 01:06:15 +00:00
|
|
|
http.Handle(Prefix+"/", http.StripPrefix(Prefix, serveStaticFileHandler(paths, stats)))
|
|
|
|
|
http.HandleFunc("/favicon.ico", doNothing)
|
|
|
|
|
|
2023-02-05 20:34:22 +00:00
|
|
|
if statistics {
|
2023-01-25 01:06:15 +00:00
|
|
|
http.Handle("/_/stats", serveStatsHandler(args, stats))
|
|
|
|
|
}
|
|
|
|
|
|
2023-01-27 19:17:13 +00:00
|
|
|
err = http.ListenAndServe(":"+strconv.FormatInt(int64(port), 10), nil)
|
2023-01-25 01:06:15 +00:00
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return nil
|
2022-09-08 15:12:06 +00:00
|
|
|
}
|
