comic-hasher/cmd/comic-hasher/main.go
2024-12-15 14:15:33 -08:00

953 lines
25 KiB
Go

package main
import (
"bufio"
"bytes"
"cmp"
"compress/gzip"
"context"
"encoding/json"
"errors"
"flag"
"fmt"
"image"
_ "image/gif"
_ "image/jpeg"
_ "image/png"
"io"
"io/fs"
"log"
"net/http"
_ "net/http/pprof"
"net/url"
"os"
"path/filepath"
"runtime/pprof"
"slices"
"strconv"
"strings"
"sync"
"time"
"github.com/kr/pretty"
"github.com/vmihailenco/msgpack/v5"
_ "golang.org/x/image/tiff"
_ "golang.org/x/image/vp8"
_ "golang.org/x/image/vp8l"
_ "golang.org/x/image/webp"
ch "gitea.narnian.us/lordwelch/comic-hasher"
"gitea.narnian.us/lordwelch/comic-hasher/cv"
"gitea.narnian.us/lordwelch/goimagehash"
)
type Server struct {
httpServer *http.Server
mux *http.ServeMux
BaseURL *url.URL
hashes ch.HashStorage
Context context.Context
cancel func()
signalQueue chan os.Signal
readerQueue chan string
hashingQueue chan ch.Im
mappingQueue chan ch.ImageHash
onlyHashNewIDs bool
}
type Format int
const (
Msgpack = iota + 1
JSON
)
var formatNames = map[Format]string{
JSON: "json",
Msgpack: "msgpack",
}
var formatValues = map[string]Format{
"json": JSON,
"msgpack": Msgpack,
}
func (f Format) String() string {
if name, known := formatNames[f]; known {
return name
}
return "Unknown"
}
func (f *Format) Set(s string) error {
if format, known := formatValues[strings.ToLower(s)]; known {
*f = format
} else {
return fmt.Errorf("Unknown format: %d", f)
}
return nil
}
type Storage int
const (
Map = iota + 1
BasicMap
Sqlite
Sqlite3
VPTree
)
var storageNames = map[Storage]string{
Map: "map",
BasicMap: "basicmap",
Sqlite: "sqlite",
Sqlite3: "sqlite3",
VPTree: "vptree",
}
var storageValues = map[string]Storage{
"map": Map,
"basicmap": BasicMap,
"sqlite": Sqlite,
"sqlite3": Sqlite3,
"vptree": VPTree,
}
func (f Storage) String() string {
if name, known := storageNames[f]; known {
return name
}
return "Unknown"
}
func (f *Storage) Set(s string) error {
if storage, known := storageValues[strings.ToLower(s)]; known {
*f = storage
} else {
return fmt.Errorf("Unknown storage type: %d", f)
}
return nil
}
type Encoder func(any) ([]byte, error)
type Decoder func([]byte, interface{}) error
type Opts struct {
cpuprofile string
coverPath string
sqlitePath string
loadEmbeddedHashes bool
saveEmbeddedHashes bool
format Format
hashesPath string
storageType Storage
onlyHashNewIDs bool
deleteHashedImages bool
path string
cv struct {
downloadCovers bool
APIKey string
path string
thumbOnly bool
hashDownloaded bool
}
}
func main() {
opts := Opts{format: Msgpack, storageType: BasicMap} // flag is weird
wd, err := os.Getwd()
fmt.Println(err)
if err != nil {
wd = "comic-hasher"
} else {
wd = filepath.Join(wd, "comic-hasher")
}
go func() {
log.Println(http.ListenAndServe("localhost:6060", nil))
}()
flag.StringVar(&opts.cpuprofile, "cpuprofile", "", "Write cpu profile to file")
flag.StringVar(&opts.path, "path", wd, "Path for comic-hasher to store files")
flag.StringVar(&opts.coverPath, "cover-path", "", "Path to local covers to add to hash database. Must be in the form '{cover-path}/{domain}/{id}/*' eg for --cover-path /covers it should look like /covers/comicvine.gamespot.com/10000/image.gif")
flag.StringVar(&opts.sqlitePath, "sqlite-path", "", fmt.Sprintf("Path to sqlite database to use for matching hashes, substantialy reduces memory usage (default %v)", filepath.Join(wd, "tmp.sqlite")))
flag.BoolVar(&opts.loadEmbeddedHashes, "use-embedded-hashes", true, "Use hashes embedded in the application as a starting point")
flag.BoolVar(&opts.saveEmbeddedHashes, "save-embedded-hashes", false, "Save hashes even if we loaded the embedded hashes")
flag.StringVar(&opts.hashesPath, "hashes", "", fmt.Sprintf("Path to optionally gziped hashes in msgpack or json format. You must disable embedded hashes to use this option (default %v)", filepath.Join(wd, "hashes.gz")))
flag.Var(&opts.format, "save-format", "Specify the format to export hashes to (json, msgpack)")
flag.Var(&opts.storageType, "storage-type", "Specify the storage type used internally to search hashes (sqlite,sqlite3,map,basicmap,vptree)")
flag.BoolVar(&opts.onlyHashNewIDs, "only-hash-new-ids", true, "Only hashes new covers from CV/local path (Note: If there are multiple covers for the same ID they may get queued at the same time and hashed on the first run, implies -cv-thumb-only if -delete-hashed-images is set)")
flag.BoolVar(&opts.deleteHashedImages, "delete-hashed-images", false, "Deletes downloaded images after hashing them, useful to save space, paths are recorded in ch.sqlite")
flag.BoolVar(&opts.cv.downloadCovers, "cv-dl-covers", false, "Downloads all covers from ComicVine and adds them to the server")
flag.StringVar(&opts.cv.APIKey, "cv-api-key", "", "API Key to use to access the ComicVine API")
flag.StringVar(&opts.cv.path, "cv-path", "", fmt.Sprintf("Path to store ComicVine data in (default %v)", filepath.Join(wd, "comicvine")))
flag.BoolVar(&opts.cv.thumbOnly, "cv-thumb-only", true, "Only downloads the thumbnail image from comicvine")
flag.BoolVar(&opts.cv.hashDownloaded, "cv-hash-downloaded", true, "Hash already downloaded images")
flag.Parse()
if opts.coverPath != "" {
_, err := os.Stat(opts.coverPath)
if err != nil {
panic(err)
}
}
// opts.onlyHashNewIDs = opts.onlyHashNewIDs || opts.deleteHashedImages
if opts.cv.downloadCovers {
if opts.cv.APIKey == "" {
log.Fatal("No ComicVine API Key provided")
}
}
opts.cv.thumbOnly = opts.cv.thumbOnly || (opts.onlyHashNewIDs && opts.deleteHashedImages)
opts.path, _ = filepath.Abs(opts.path)
if opts.hashesPath == "" {
opts.hashesPath = filepath.Join(opts.path, "hashes.gz")
}
opts.hashesPath, _ = filepath.Abs(opts.hashesPath)
if opts.sqlitePath == "" {
opts.sqlitePath = filepath.Join(opts.path, "tmp.sqlite")
}
opts.sqlitePath, _ = filepath.Abs(opts.sqlitePath)
if opts.cv.path == "" {
opts.cv.path = filepath.Join(opts.path, "comicvine")
}
opts.cv.path, _ = filepath.Abs(opts.cv.path)
pretty.Log(opts)
startServer(opts)
}
func (s *Server) authenticated(w http.ResponseWriter, r *http.Request) (string, bool) {
return strings.TrimSpace("lordwelch"), true
}
func (s *Server) setupAppHandlers() {
// s.mux.HandleFunc("/get_cover", s.getCover)
s.mux.HandleFunc("/add_cover", s.addCover)
s.mux.HandleFunc("/match_cover_hash", s.matchCoverHash)
s.mux.HandleFunc("/associate_ids", s.associateIDs)
}
func (s *Server) getCover(w http.ResponseWriter, r *http.Request) {
user, authed := s.authenticated(w, r)
if !authed || user == "" {
http.Error(w, "Invalid Auth", http.StatusForbidden)
return
}
var (
values = r.URL.Query()
domain = strings.TrimSpace(values.Get("domain"))
ID = strings.TrimSpace(values.Get("id"))
)
if ID == "" {
log.Println("No ID Provided")
http.Error(w, "No ID Provided", http.StatusBadRequest)
return
}
if domain == "" {
log.Println("No domain Provided")
http.Error(w, "No domain Provided", http.StatusBadRequest)
return
}
// if index, ok := s.IDToCover[domain+":"+ID]; ok {
// covers, err := json.Marshal(s.covers[index])
// if err == nil {
// w.Header().Add("Content-Type", "application/json")
// w.Write(covers)
// return
// }
// }
fmt.Fprintln(w, "Not implemented")
}
func (s *Server) associateIDs(w http.ResponseWriter, r *http.Request) {
user, authed := s.authenticated(w, r)
if !authed || user == "" {
http.Error(w, "Invalid Auth", http.StatusForbidden)
return
}
var (
values = r.URL.Query()
domain = strings.TrimSpace(values.Get("domain"))
ID = strings.TrimSpace(values.Get("id"))
newDomain = strings.TrimSpace(values.Get("newDomain"))
newID = strings.TrimSpace(values.Get("newID"))
)
if ID == "" {
msg := "No ID Provided"
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
if domain == "" {
msg := "No domain Provided"
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
if newID == "" {
msg := "No newID Provided"
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
if newDomain == "" {
msg := "No newDomain Provided"
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
if newDomain == domain {
msg := "newDomain cannot be the same as the existing domain"
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
// if _, domainExists := s.ids[ch.Source(domain)]; !domainExists {
// msg := "No IDs belonging to " + domain + "exist on this server"
// log.Println(msg)
// writeJson(w, http.StatusBadRequest, result{Msg: msg})
// }
log.Printf("Attempting to associate %s:%s to %s:%s", domain, ID, newDomain, newID)
found := false
// for _, hash := range []map[uint64][]string{s.FullAhash, s.FullDhash, s.FullPhash} {
// for i, idlist := range hash {
// if _, found_in_hash := slices.BinarySearch(idlist, domain+":"+ID); found_in_hash {
// found = true
// hash[i] = ch.Insert(idlist, newDomain+":"+newID)
// if _, ok := s.ids[ch.Source(newDomain)]; !ok {
// s.ids[ch.Source(newDomain)] = make(map[string]struct{})
// }
// s.ids[ch.Source(newDomain)][newID] = struct{}{}
// }
// }
// }
if found {
writeJson(w, http.StatusOK, result{Msg: "New ID added"})
} else {
writeJson(w, http.StatusOK, result{Msg: "Old ID not found"})
}
}
type SimpleResult struct {
Distance int
IDList ch.IDList
}
func getSimpleResults(fullResults []ch.Result) []SimpleResult {
simpleResult := make([]SimpleResult, 0, len(fullResults))
slices.SortFunc(fullResults, func(a, b ch.Result) int {
return cmp.Compare(a.Distance, b.Distance) * -1 // Reverses sort
})
// Deduplicate IDs
distance := make(map[int]SimpleResult)
for _, fullResult := range fullResults {
simple, ok := distance[fullResult.Distance]
if !ok {
simple.IDList = make(ch.IDList)
}
for source, ids := range fullResult.IDs {
for _, id := range ids {
simple.IDList[source] = ch.Insert(simple.IDList[source], id)
}
}
}
// turn into array
for _, sr := range distance {
simpleResult = append(simpleResult, sr)
}
return simpleResult
}
type result struct {
Results any `json:"results,omitempty"`
Msg string `json:"msg,omitempty"`
}
func writeJson(w http.ResponseWriter, status int, res result) {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.Header().Set("X-Content-Type-Options", "nosniff")
var (
bytes []byte
err error
)
if bytes, err = json.Marshal(res); err != nil {
bytes, _ = json.Marshal(result{Msg: fmt.Sprintf("Failed to create json: %s", err)})
}
w.WriteHeader(status)
_, _ = w.Write(bytes)
_, _ = w.Write([]byte("\n"))
}
func (s *Server) matchCoverHash(w http.ResponseWriter, r *http.Request) {
user, authed := s.authenticated(w, r)
if !authed || user == "" {
http.Error(w, "Invalid Auth", http.StatusForbidden)
return
}
var (
values = r.URL.Query()
ahashStr = strings.TrimSpace(values.Get("ahash"))
dhashStr = strings.TrimSpace(values.Get("dhash"))
phashStr = strings.TrimSpace(values.Get("phash"))
maxStr = strings.TrimSpace(values.Get("max"))
exactOnly = strings.ToLower(strings.TrimSpace(values.Get("exactOnly"))) != "false"
simple = strings.ToLower(strings.TrimSpace(values.Get("simple"))) == "true"
ahash uint64
dhash uint64
phash uint64
max int = 8
max_tmp int
err error
hashes []ch.Hash
)
if ahash, err = strconv.ParseUint(ahashStr, 16, 64); err != nil && ahashStr != "" {
log.Printf("could not parse ahash: %s", ahashStr)
writeJson(w, http.StatusBadRequest, result{Msg: "hash parse failed"})
return
}
if ahash > 0 {
hashes = append(hashes, ch.Hash{ahash, goimagehash.AHash})
}
if dhash, err = strconv.ParseUint(dhashStr, 16, 64); err != nil && dhashStr != "" {
log.Printf("could not parse dhash: %s", dhashStr)
writeJson(w, http.StatusBadRequest, result{Msg: "hash parse failed"})
return
}
if dhash > 0 {
hashes = append(hashes, ch.Hash{dhash, goimagehash.DHash})
}
if phash, err = strconv.ParseUint(phashStr, 16, 64); err != nil && phashStr != "" {
log.Printf("could not parse phash: %s", phashStr)
writeJson(w, http.StatusBadRequest, result{Msg: "hash parse failed"})
return
}
if phash > 0 {
hashes = append(hashes, ch.Hash{phash, goimagehash.PHash})
}
if max_tmp, err = strconv.Atoi(maxStr); err != nil && maxStr != "" {
log.Printf("Invalid Max: %s", maxStr)
writeJson(w, http.StatusBadRequest, result{Msg: fmt.Sprintf("Invalid Max: %s", maxStr)})
return
}
if maxStr != "" {
max = max_tmp
}
if max > 8 {
log.Printf("Max must be less than 9: %d", max)
writeJson(w, http.StatusBadRequest, result{Msg: fmt.Sprintf("Max must be less than 9: %d", max)})
return
}
matches, err := s.hashes.GetMatches(hashes, max, exactOnly)
slices.SortFunc(matches, func(a ch.Result, b ch.Result) int {
return cmp.Compare(a.Distance, b.Distance)
})
log.Println(err)
if len(matches) > 0 {
var msg string = ""
if err != nil {
msg = err.Error()
}
if simple {
writeJson(w, http.StatusOK, result{
Results: getSimpleResults(matches),
Msg: msg,
})
return
}
writeJson(w, http.StatusOK, result{
Results: matches,
Msg: msg,
})
return
}
writeJson(w, http.StatusNotFound, result{Msg: "No hashes found"})
}
func (s *Server) addCover(w http.ResponseWriter, r *http.Request) {
user, authed := s.authenticated(w, r)
if !authed || user == "" {
http.Error(w, "Invalid Auth", http.StatusForbidden)
return
}
var (
values = r.URL.Query()
domain = strings.TrimSpace(values.Get("domain"))
ID = strings.TrimSpace(values.Get("id"))
)
if ID == "" {
log.Println("No ID Provided")
writeJson(w, http.StatusBadRequest, result{Msg: "No ID Provided"})
return
}
if domain == "" {
log.Println("No domain Provided")
writeJson(w, http.StatusBadRequest, result{Msg: "No Domain Provided"})
return
}
i, format, err := image.Decode(r.Body)
if err != nil {
msg := fmt.Sprintf("Failed to decode Image: %s", err)
log.Println(msg)
writeJson(w, http.StatusBadRequest, result{Msg: msg})
return
}
log.Printf("Decoded %s image from %s", format, user)
select {
case <-s.Context.Done():
log.Println("Recieved quit")
return
default:
}
s.hashingQueue <- ch.Im{Im: i, Format: format, ID: ch.ID{Domain: ch.Source(domain), ID: ID}}
writeJson(w, http.StatusOK, result{Msg: "Success"})
}
func (s *Server) mapper(done func()) {
defer done()
for hash := range s.mappingQueue {
s.hashes.MapHashes(hash)
}
}
func (s *Server) hasher(workerID int, done func(int)) {
defer done(workerID)
for image := range s.hashingQueue {
start := time.Now()
if image.NewOnly && len(s.hashes.GetIDs(image.ID)) > 0 {
log.Printf("Skipping existing hash with ID: %s found", image.ID)
continue
}
hash := ch.HashImage(image)
if hash.ID.Domain == "" || hash.ID.ID == "" {
continue
}
select {
case <-s.Context.Done():
log.Println("Recieved quit")
return
case s.mappingQueue <- hash:
default:
}
elapsed := time.Since(start)
log.Printf("Hashing took %v: worker: %v. %s: %064b id: %s\n", elapsed, workerID, hash.Hashes[0].Kind, hash.Hashes[0].Hash, hash.ID)
}
}
func (s *Server) reader(workerID int, done func(i int)) {
defer done(workerID)
for path := range s.readerQueue {
id := ch.ID{Domain: ch.Source(filepath.Base(filepath.Dir(filepath.Dir(path)))), ID: filepath.Base(filepath.Dir(path))}
if len(s.hashes.GetIDs(id)) > 0 {
continue
}
file, err := os.Open(path)
if err != nil {
panic(err)
}
i, format, err := image.Decode(bufio.NewReader(file))
file.Close()
if err != nil {
continue // skip this image
}
im := ch.Im{
Im: i,
Format: format,
ID: id,
NewOnly: s.onlyHashNewIDs,
}
select {
case <-s.Context.Done():
log.Println("Recieved quit")
return
case s.hashingQueue <- im:
default:
}
}
}
// EncodeHashes must have a lock to s.hashMutex
func (s *Server) EncodeHashes(format Format) ([]byte, error) {
var encoder Encoder
switch format {
case Msgpack:
encoder = msgpack.Marshal
case JSON:
encoder = json.Marshal
default:
return nil, fmt.Errorf("Unknown format: %v", format)
}
hashes, err := s.hashes.EncodeHashes()
if err != nil {
return nil, err
}
return encoder(hashes)
}
// DecodeHashes must have a lock to s.hashMutex
func (s *Server) DecodeHashes(format Format, hashes []byte) error {
var decoder Decoder
switch format {
case Msgpack:
decoder = msgpack.Unmarshal
case JSON:
decoder = json.Unmarshal
default:
return fmt.Errorf("Unknown format: %v", format)
}
loadedHashes := ch.SavedHashes{}
err := decoder(hashes, &loadedHashes)
if err != nil {
fmt.Println("Failed to load hashes, checking if they are old hashes", format, ":", err)
oldHashes := make(ch.OldSavedHashes)
if err = decoder(hashes, &oldHashes); err != nil {
return err
}
loadedHashes = ch.ConvertSavedHashes(oldHashes)
}
return s.hashes.DecodeHashes(loadedHashes)
}
func (s *Server) HashLocalImages(opts Opts) {
go func() {
alreadyQuit := false
if opts.coverPath == "" {
select {
case sig := <-s.signalQueue:
log.Printf("Signal: %v\n", sig)
s.cancel()
case <-s.Context.Done():
log.Println("Recieved quit")
}
err := s.httpServer.Shutdown(context.TODO())
log.Println("Err:", err)
return
}
log.Println("Hashing covers at ", opts.coverPath)
start := time.Now()
err := filepath.WalkDir(opts.coverPath, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
select {
case signal := <-s.signalQueue:
err = s.httpServer.Shutdown(context.TODO())
alreadyQuit = true
s.cancel()
return fmt.Errorf("signal: %v, %w", signal, err)
case <-s.Context.Done():
log.Println("Recieved quit")
err = s.httpServer.Shutdown(context.TODO())
return fmt.Errorf("Recieved quit: %w", err)
default:
}
if d.IsDir() {
return nil
}
s.readerQueue <- path
return nil
})
elapsed := time.Since(start)
log.Println("Err:", err, "local hashing took", elapsed)
sig := <-s.signalQueue
if !alreadyQuit {
s.cancel()
}
err = s.httpServer.Shutdown(context.TODO())
log.Printf("Signal: %v, error: %v", sig, err)
}()
}
func initializeStorage(opts Opts) (ch.HashStorage, error) {
switch opts.storageType {
case Map:
return ch.NewMapStorage()
case BasicMap:
return ch.NewBasicMapStorage()
case Sqlite:
return ch.NewSqliteStorage("sqlite", opts.sqlitePath)
case Sqlite3:
return ch.NewSqliteStorage("sqlite3", opts.sqlitePath)
case VPTree:
return ch.NewVPStorage()
}
return nil, errors.New("Unknown storage type provided")
}
func loadHashes(opts Opts, decodeHashes func(format Format, hashes []byte) error) {
if opts.loadEmbeddedHashes && len(ch.Hashes) != 0 {
var err error
hashes := ch.Hashes
if gr, err := gzip.NewReader(bytes.NewReader(ch.Hashes)); err == nil {
hashes, err = io.ReadAll(gr)
if err != nil {
panic(fmt.Sprintf("Failed to read embedded hashes: %s", err))
}
}
var format Format
for _, format = range []Format{Msgpack, JSON} {
if err = decodeHashes(format, hashes); err == nil {
break
}
}
if err != nil {
panic(fmt.Sprintf("Failed to decode embedded hashes: %s", err))
}
fmt.Printf("Loaded embedded %s hashes\n", format)
} else {
if f, err := os.Open(opts.hashesPath); err == nil {
var buf io.Reader = f
if gr, err := gzip.NewReader(buf); err == nil {
buf = bufio.NewReader(gr)
} else {
_, _ = f.Seek(0, io.SeekStart)
}
hashes, err := io.ReadAll(buf)
f.Close()
if err != nil {
panic(fmt.Sprintf("Failed to load hashes from disk: %s", err))
}
var format Format
for _, format = range []Format{Msgpack, JSON} {
if err = decodeHashes(format, hashes); err == nil {
break
}
}
if err != nil {
panic(fmt.Sprintf("Failed to decode hashes from disk: %s", err))
}
fmt.Printf("Loaded %s hashes from %q\n", format, opts.hashesPath)
} else {
if errors.Is(err, os.ErrNotExist) {
log.Println("No saved hashes to load")
} else {
log.Println("Unable to load saved hashes", err)
}
}
}
}
func saveHashes(opts Opts, encodeHashes func(format Format) ([]byte, error)) {
if !opts.loadEmbeddedHashes || opts.saveEmbeddedHashes {
encodedHashes, err := encodeHashes(opts.format)
if err == nil {
if f, err := os.Create(opts.hashesPath); err == nil {
gzw := gzip.NewWriter(f)
_, err := gzw.Write(encodedHashes)
if err != nil {
log.Println("Failed to write hashes", err)
} else {
log.Println("Successfully saved hashes")
}
gzw.Close()
f.Close()
} else {
log.Println("Unabled to save hashes", err)
}
} else {
fmt.Printf("Unable to encode hashes as %v: %v", opts.format, err)
}
}
}
func downloadProcessor(chdb ch.CHDB, opts Opts, imagePaths chan cv.Download, server Server) {
defer func() {
log.Println("Download Processor completed")
}()
for path := range imagePaths {
id := ch.ID{Domain: ch.ComicVine, ID: path.IssueID}
if opts.onlyHashNewIDs && len(server.hashes.GetIDs(id)) > 0 {
continue
}
if chdb.PathHashed(path.Dest) {
// log.Println(path.Dest, "File has already been hashed, it may not be saved in the hashes file because we currently don't save any hashes if we've crashed")
continue
}
file, err := os.OpenFile(path.Dest, os.O_RDWR, 0666)
if err != nil {
panic(err)
}
i, format, err := image.Decode(bufio.NewReader(file))
if err != nil {
file.Close()
log.Println("Reading image failed", path.Dest)
continue // skip this image
}
file.Close()
chdb.AddPath(path.Dest) // Add to sqlite db and remove file if opts.deleteHashedImages is true
im := ch.Im{
Im: i,
Format: format,
ID: id,
NewOnly: opts.onlyHashNewIDs,
}
select {
case <-server.Context.Done():
log.Println("Recieved quit")
return
case server.hashingQueue <- im:
// log.Println("Sending:", im)
}
}
}
func startServer(opts Opts) {
if opts.cpuprofile != "" {
f, err := os.Create(opts.cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
mux := http.NewServeMux()
ctx, cancel := context.WithCancel(context.Background())
server := Server{
Context: ctx,
cancel: cancel,
signalQueue: make(chan os.Signal, 1),
readerQueue: make(chan string, 100),
hashingQueue: make(chan ch.Im),
mappingQueue: make(chan ch.ImageHash),
mux: mux,
httpServer: &http.Server{
Addr: ":8080",
Handler: mux,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
MaxHeaderBytes: 1 << 20,
},
onlyHashNewIDs: opts.onlyHashNewIDs,
}
Notify(server.signalQueue)
var err error
log.Println("Init hashes")
server.hashes, err = initializeStorage(opts)
if err != nil {
panic(err)
}
log.Println("Init handlers")
server.setupAppHandlers()
log.Println("Init 10 readers")
rwg := sync.WaitGroup{}
for i := range 10 {
rwg.Add(1)
go server.reader(i, func(i int) { log.Println("Reader", i, "completed"); rwg.Done() })
}
log.Println("Init 10 hashers")
hwg := sync.WaitGroup{}
for i := range 10 {
hwg.Add(1)
go server.hasher(i, func(i int) { log.Println("Hasher", i, "completed"); hwg.Done() })
}
log.Println("Init 1 mapper")
mwg := sync.WaitGroup{}
mwg.Add(1)
go server.mapper(func() { log.Println("Mapper 0 completed"); mwg.Done() })
// server.DecodeHashes would normally need a write lock
// nothing else has been started yet so we don't need one
loadHashes(opts, server.DecodeHashes)
server.HashLocalImages(opts)
chdb, err := ch.OpenCHDB(filepath.Join(opts.path, "ch.sqlite"), opts.cv.path, opts.deleteHashedImages)
if err != nil {
panic(err)
}
log.Println("Init downloaders")
dwg := sync.WaitGroup{}
finishedDownloadQueue := make(chan cv.Download)
go downloadProcessor(chdb, opts, finishedDownloadQueue, server)
if opts.cv.downloadCovers {
dwg.Add(1)
imageTypes := []string{}
if opts.cv.thumbOnly {
imageTypes = append(imageTypes, "thumb_url")
}
cvdownloader := cv.NewCVDownloader(server.Context, chdb, opts.cv.path, opts.cv.APIKey, imageTypes, opts.cv.hashDownloaded, finishedDownloadQueue)
go func() {
defer dwg.Done()
cv.DownloadCovers(cvdownloader)
f:
for {
select {
case <-time.After(2 * time.Hour):
cv.DownloadCovers(cvdownloader)
case <-server.Context.Done():
break f
}
}
}()
}
log.Println("Listening on ", server.httpServer.Addr)
err = server.httpServer.ListenAndServe()
if err != nil {
log.Println(err)
}
close(server.readerQueue)
log.Println("waiting on readers")
rwg.Wait()
for range server.readerQueue {
}
log.Println("waiting on downloaders")
dwg.Wait() // Downloaders send to server.hashingQueue
close(server.hashingQueue)
log.Println("waiting on hashers")
hwg.Wait()
for range server.hashingQueue {
}
close(server.mappingQueue)
log.Println("waiting on mapper")
mwg.Wait()
for range server.mappingQueue {
}
close(server.signalQueue)
for range server.signalQueue {
}
log.Println("waiting on downloader")
close(finishedDownloadQueue)
for range finishedDownloadQueue {
}
_ = chdb.Close()
// server.EncodeHashes would normally need a read lock
// the server has been stopped so it's not needed here
saveHashes(opts, server.EncodeHashes)
}