Files
MeBox/internal/service/danmaku_match_test.go
T
truewhile 96a554b4b5 优化弹幕识别逻辑
优化弹幕识别逻辑
2026-08-25 00:26:32 +08:00

278 lines
11 KiB
Go

package service
import (
"bytes"
"context"
"crypto/md5"
"encoding/hex"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
"github.com/ShukeBta/MMTL/internal/model"
)
// overrideDanmakuOfficialBase points the "official" endpoint (match + fallback)
// at a local server for the duration of a test.
func overrideDanmakuOfficialBase(t *testing.T, base string) {
t.Helper()
old := danmakuOfficialBase
danmakuOfficialBase = base
t.Cleanup(func() { danmakuOfficialBase = old })
}
// writeDanmakuTestVideo writes a deterministic <16MB video-ish file and
// returns its path and the expected dandanplay hash (MD5 of the whole file,
// since the file is smaller than the 16MB prefix).
func writeDanmakuTestVideo(t *testing.T, name string) (path, wantHash string) {
t.Helper()
content := bytes.Repeat([]byte("MMTL-danmaku-hash-test-0123456789"), 500)
path = filepath.Join(t.TempDir(), name)
require.NoError(t, os.WriteFile(path, content, 0o644))
sum := md5.Sum(content)
return path, hex.EncodeToString(sum[:])
}
// danmakuOfficialServer serves /api/v2/match (with the given payload) and a
// comment library for the matched episode.
func danmakuOfficialServer(t *testing.T, matchBody, commentBody string, seen *string) *httptest.Server {
t.Helper()
mux := http.NewServeMux()
mux.HandleFunc("/api/v2/match", func(w http.ResponseWriter, r *http.Request) {
b, _ := io.ReadAll(r.Body)
if seen != nil {
*seen = string(b)
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprint(w, matchBody)
})
mux.HandleFunc("/api/v2/comment/25484", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/xml")
fmt.Fprint(w, commentBody)
})
srv := httptest.NewServer(mux)
t.Cleanup(srv.Close)
return srv
}
// seedDanmakuVideoMedia inserts a media row with a real path (for the hash
// layer) and optional episode number.
func seedDanmakuVideoMedia(t *testing.T, svc *DanmakuService, id, title, path string, size int64, episode int) {
t.Helper()
m := model.Media{Title: title, Path: path, SizeBytes: size, EpisodeNum: episode}
m.ID = id
require.NoError(t, svc.repo.DB.Create(&m).Error)
}
// 第 1 层:本地文件直接算 hash → 官方 /api/v2/match → 命中后拉弹幕。
func TestDanmakuFetchHashMatchLayer(t *testing.T) {
videoPath, wantHash := writeDanmakuTestVideo(t, "测试动画.第01话.mkv")
var seen string
official := danmakuOfficialServer(t,
`{"success":true,"isMatched":true,"matches":[{"episodeId":25484,"animeId":1001,"animeTitle":"测试动画","episodeTitle":"第1话"}]}`,
`<?xml version="1.0"?><i><d p="0.5,1,16777215,user1">弹幕Hash命中</d></i>`,
&seen)
overrideDanmakuOfficialBase(t, official.URL)
svc := newDanmakuTestService(t)
ctx := context.Background()
seedDanmakuVideoMedia(t, svc, "mH", "测试动画", videoPath, 32000, 1)
res, err := svc.Fetch(ctx, "mH", "", "")
require.NoError(t, err)
require.True(t, res.Enabled)
require.Equal(t, "xml", res.SourceType)
require.Contains(t, res.Raw, "弹幕Hash命中")
require.Empty(t, res.Candidates)
// match 请求体:文件名去扩展名并 URL 转义(官方接口要求,实测验证)、
// hash、大小、matchMode 齐全。
require.Contains(t, seen, `"fileName":"`+url.QueryEscape("测试动画.第01话")+`"`)
require.Contains(t, seen, `"fileHash":"`+wantHash+`"`)
require.Contains(t, seen, `"fileSize":32000`)
require.Contains(t, seen, `"matchMode":"hashAndFileName"`)
}
// 第 1 层拉弹幕:配置了自定义源时优先自定义源,失败才回退官方。
func TestDanmakuFetchHashMatchUsesConfiguredSourceFirst(t *testing.T) {
videoPath, _ := writeDanmakuTestVideo(t, "测试动画.第01话.mkv")
cfgSrv := newDanmakuSourceServer(t) // /api/v2/comment/25484 → 弹幕A
official := danmakuOfficialServer(t,
`{"success":true,"isMatched":true,"matches":[{"episodeId":25484,"animeId":1001,"animeTitle":"测试动画"}]}`,
`<?xml version="1.0"?><i><d p="0.5,1,16777215,user1">弹幕B官方</d></i>`,
nil)
overrideDanmakuOfficialBase(t, official.URL)
svc := newDanmakuTestService(t)
ctx := context.Background()
require.NoError(t, svc.repo.Setting.Set(ctx, DanmakuSourceKey, cfgSrv.URL()))
seedDanmakuVideoMedia(t, svc, "mC", "测试动画", videoPath, 32000, 0)
res, err := svc.Fetch(ctx, "mC", "", "")
require.NoError(t, err)
// 配置源优先:弹幕来自自定义源而非官方。
require.Contains(t, res.Raw, "弹幕A")
require.NotContains(t, res.Raw, "弹幕B官方")
}
func TestDanmakuFetchHashMatchConfiguredFailsFallsBackOfficial(t *testing.T) {
videoPath, _ := writeDanmakuTestVideo(t, "测试动画.第01话.mkv")
// 配置源:搜索正常,但弹幕接口 500。
mux := http.NewServeMux()
mux.HandleFunc("/api/v2/search/episodes", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
fmt.Fprint(w, `{"hasMore":false,"animes":[{"animeId":1001,"animeTitle":"测试动画","episodes":[{"episodeId":25484,"episodeTitle":"第1话"}]}]}`)
})
mux.HandleFunc("/api/v2/comment/25484", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusInternalServerError)
})
cfgSrv := httptest.NewServer(mux)
t.Cleanup(cfgSrv.Close)
official := danmakuOfficialServer(t,
`{"success":true,"isMatched":true,"matches":[{"episodeId":25484,"animeId":1001,"animeTitle":"测试动画"}]}`,
`<?xml version="1.0"?><i><d p="0.5,1,16777215,user1">弹幕官方兜底</d></i>`,
nil)
overrideDanmakuOfficialBase(t, official.URL)
svc := newDanmakuTestService(t)
ctx := context.Background()
require.NoError(t, svc.repo.Setting.Set(ctx, DanmakuSourceKey, cfgSrv.URL))
seedDanmakuVideoMedia(t, svc, "mF", "测试动画", videoPath, 32000, 0)
res, err := svc.Fetch(ctx, "mF", "", "")
require.NoError(t, err)
require.Contains(t, res.Raw, "弹幕官方兜底")
}
// 第 1 层未命中(matches 为空)→ 第 2 层按文件名+集数搜索。
func TestDanmakuFetchHashMissFallsBackToFileNameSearch(t *testing.T) {
videoPath, _ := writeDanmakuTestVideo(t, "测试动画.第01话.mkv")
cfgSrv := newDanmakuSourceServer(t) // 搜索 + 弹幕A
official := danmakuOfficialServer(t,
`{"success":true,"isMatched":false,"matches":[]}`,
`<i></i>`, nil)
overrideDanmakuOfficialBase(t, official.URL)
svc := newDanmakuTestService(t)
ctx := context.Background()
require.NoError(t, svc.repo.Setting.Set(ctx, DanmakuSourceKey, cfgSrv.URL()))
seedDanmakuVideoMedia(t, svc, "mM", "刮削标题", videoPath, 32000, 1)
res, err := svc.Fetch(ctx, "mM", "", "")
require.NoError(t, err)
require.True(t, res.Enabled)
require.Contains(t, res.Raw, "弹幕A")
// 第 2 层命中:搜索请求按文件名进行。
require.Contains(t, cfgSrv.lastSearch, "anime=")
}
// strm:通过解析出的直链 Range 拉 16MB 前缀算 hash → match → 拉弹幕。
func TestDanmakuFetchStrmHashViaDirectLink(t *testing.T) {
content := bytes.Repeat([]byte("strm-video-bytes-0123456789"), 400)
sum := md5.Sum(content)
wantHash := hex.EncodeToString(sum[:])
var gotRange string
rangeSrv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
gotRange = r.Header.Get("Range")
w.Header().Set("Content-Type", "application/octet-stream")
_, _ = w.Write(content)
}))
t.Cleanup(rangeSrv.Close)
var seen string
official := danmakuOfficialServer(t,
`{"success":true,"isMatched":true,"matches":[{"episodeId":25484,"animeId":1001,"animeTitle":"远程动画"}]}`,
`<?xml version="1.0"?><i><d p="0.5,1,16777215,user1">弹幕Strm命中</d></i>`,
&seen)
overrideDanmakuOfficialBase(t, official.URL)
svc := newDanmakuTestService(t)
var gotProvider string
svc.SetStrmResolver(func(_ context.Context, provider string, _ url.Values) (*StrmPlayResult, error) {
gotProvider = provider
return &StrmPlayResult{RedirectURL: rangeSrv.URL}, nil
})
ctx := context.Background()
strmPath := filepath.Join(t.TempDir(), "远程动画.第01话.strm")
require.NoError(t, os.WriteFile(strmPath, []byte("http://example.invalid/api/strm/play/115/video.mkv?acct=1&pickcode=abc\n"), 0o644))
seedDanmakuVideoMedia(t, svc, "mS", "远程动画", strmPath, 64, 0)
// STRMURL 需要显式写回(扫库时才解析)。
var media model.Media
require.NoError(t, svc.repo.DB.First(&media, "id = ?", "mS").Error)
media.STRMURL = "/api/strm/play/115/video.mkv?acct=1&pickcode=abc"
require.NoError(t, svc.repo.DB.Save(&media).Error)
res, err := svc.Fetch(ctx, "mS", "", "")
require.NoError(t, err)
require.True(t, res.Enabled)
require.Contains(t, res.Raw, "弹幕Strm命中")
require.Equal(t, "115", gotProvider)
require.Contains(t, gotRange, "bytes=0-")
require.Contains(t, seen, `"fileHash":"`+wantHash+`"`)
require.Contains(t, seen, `"fileName":"`+url.QueryEscape("远程动画.第01话")+`"`)
// strm 的 SizeBytes 是文本大小,不参与 match。
require.Contains(t, seen, `"fileSize":0`)
}
// match 接口 fileName 语义:去扩展名;strm 文件名含视频扩展名时剥两层。
func TestDanmakuMatchFileName(t *testing.T) {
cases := []struct{ in, want string }{
{"/lib/某番剧.第01话.mkv", "某番剧.第01话"},
{"/lib/某番剧.第01话.strm", "某番剧.第01话"},
{"/lib/movie.mkv.strm", "movie"},
{"plain", "plain"},
}
for _, c := range cases {
require.Equal(t, c.want, danmakuMatchFileName(c.in), "path=%s", c.in)
}
}
// hashLocalFile:本地视频直接读盘算前 16MB MD5,且第二次走缓存。
func TestDanmakuHashLocalFile(t *testing.T) {
videoPath, wantHash := writeDanmakuTestVideo(t, "hashme.mkv")
svc := newDanmakuTestService(t)
got, ok := svc.hashLocalFile(videoPath)
require.True(t, ok)
require.Equal(t, wantHash, got)
got2, ok := svc.hashLocalFile(videoPath)
require.True(t, ok)
require.Equal(t, wantHash, got2)
missing, ok := svc.hashLocalFile(filepath.Join(t.TempDir(), "nope.mkv"))
require.False(t, ok)
require.Empty(t, missing)
}
// 配置源与官方同源时,回退不重复请求同一台服务器(bases 只含一份)。
func TestDanmakuSameBase(t *testing.T) {
require.True(t, sameDanmakuBase("https://api.dandanplay.net", "https://api.dandanplay.net"))
require.False(t, sameDanmakuBase("https://api.dandanplay.net", "https://dm.example.com"))
require.False(t, sameDanmakuBase("", "https://api.dandanplay.net"))
}
// fetchCommentWithFallback:配置源与官方同源时不重复请求;
// 全失败时带出最后一跳错误。
func TestDanmakuFetchCommentWithFallback(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusInternalServerError)
}))
t.Cleanup(srv.Close)
svc := newDanmakuTestService(t)
ctx := context.Background()
raw, st, err := svc.fetchCommentWithFallback(ctx, srv.URL, srv.URL, "25484")
require.Error(t, err)
require.Empty(t, raw)
require.Equal(t, "auto", st)
}