From e8628e59a0b7921c4bb252d933769b3fd383afeb Mon Sep 17 00:00:00 2001 From: tmk3ki Date: Wed, 22 Jul 2026 01:29:15 +0900 Subject: [PATCH] =?UTF-8?q?=E5=8B=95=E7=94=BBURL=E8=A1=A8=E7=A4=BA?= =?UTF-8?q?=E3=83=BB=E5=8B=95=E7=94=BB=E3=83=A1=E3=82=BF=E6=B3=A8=E5=85=A5?= =?UTF-8?q?=E3=83=BB=E3=83=81=E3=83=A3=E3=83=83=E3=83=88UI=E3=83=BBGemma/G?= =?UTF-8?q?emini=E5=88=87=E6=9B=BF=E3=81=AE=E6=9C=80=E5=B0=8F=E3=83=97?= =?UTF-8?q?=E3=83=AD=E3=83=88=E3=82=BF=E3=82=A4=E3=83=97?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .env.example | 3 + .gitignore | 6 ++ Dockerfile | 12 +++ env.go | 32 ++++++ gemini.go | 50 ++++++++++ go.mod | 23 +++++ go.sum | 124 +++++++++++++++++++++++ main.go | 120 +++++++++++++++++++++++ web/index.html | 260 +++++++++++++++++++++++++++++++++++++++++++++++++ youtube.go | 52 ++++++++++ 10 files changed, 682 insertions(+) create mode 100644 .env.example create mode 100644 .gitignore create mode 100644 Dockerfile create mode 100644 env.go create mode 100644 gemini.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go create mode 100644 web/index.html create mode 100644 youtube.go diff --git a/.env.example b/.env.example new file mode 100644 index 0000000..ff1a67b --- /dev/null +++ b/.env.example @@ -0,0 +1,3 @@ +GEMINI_API_KEY= +YOUTUBE_API_KEY= +UNLOCK_CODE= diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..dd25d07 --- /dev/null +++ b/.gitignore @@ -0,0 +1,6 @@ +/aibow +.env +*.mp4 +*.mov +*.wav +/testdata/ diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..0fc5688 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,12 @@ +FROM golang:1.26 AS build +WORKDIR /src +COPY go.mod go.sum ./ +RUN go mod download +COPY . . +RUN CGO_ENABLED=0 GOOS=linux go build -o /aibow . + +FROM gcr.io/distroless/static-debian12 +COPY --from=build /aibow /aibow +ENV PORT=8080 +EXPOSE 8080 +ENTRYPOINT ["/aibow"] diff --git a/env.go b/env.go new file mode 100644 index 0000000..b9bc512 --- /dev/null +++ b/env.go @@ -0,0 +1,32 @@ +package main + +import ( + "bufio" + "os" + "strings" +) + +func loadDotEnv(path string) { + f, err := os.Open(path) + if err != nil { + return + } + defer f.Close() + + scanner := bufio.NewScanner(f) + for scanner.Scan() { + line := strings.TrimSpace(scanner.Text()) + if line == "" || strings.HasPrefix(line, "#") { + continue + } + k, v, ok := strings.Cut(line, "=") + if !ok { + continue + } + k = strings.TrimSpace(k) + v = strings.TrimSpace(v) + if _, exists := os.LookupEnv(k); !exists { + os.Setenv(k, v) + } + } +} diff --git a/gemini.go b/gemini.go new file mode 100644 index 0000000..0f47057 --- /dev/null +++ b/gemini.go @@ -0,0 +1,50 @@ +package main + +import ( + "context" + "fmt" + + "google.golang.org/genai" +) + +type chatTurn struct { + Role string `json:"role"` // "user" or "model" + Text string `json:"text"` +} + +const ( + modelGemma = "gemma-4-26b-a4b-it" + modelGemini = "gemini-flash-latest" +) + +func selectModel(unlockCode, unlockSecret string) string { + if unlockSecret != "" && unlockCode == unlockSecret { + return modelGemini + } + return modelGemma +} + +func buildSystemInstruction(videoTitle, videoDescription string) *genai.Content { + prompt := fmt.Sprintf( + "あなたはユーザーと一緒に動画を見ている友達です。タメ口で短く、実況や相槌のように反応してください。\n"+ + "今見ている動画:\nタイトル: %s\n概要: %s", + videoTitle, videoDescription, + ) + return genai.NewContentFromText(prompt, genai.RoleUser) +} + +func chatReply(ctx context.Context, client *genai.Client, model, videoTitle, videoDescription string, history []chatTurn, message string) (string, error) { + contents := make([]*genai.Content, 0, len(history)+1) + for _, h := range history { + contents = append(contents, genai.NewContentFromText(h.Text, genai.Role(h.Role))) + } + contents = append(contents, genai.NewContentFromText(message, genai.RoleUser)) + + resp, err := client.Models.GenerateContent(ctx, model, contents, &genai.GenerateContentConfig{ + SystemInstruction: buildSystemInstruction(videoTitle, videoDescription), + }) + if err != nil { + return "", err + } + return resp.Text(), nil +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..86ff797 --- /dev/null +++ b/go.mod @@ -0,0 +1,23 @@ +module aibow + +go 1.26.4 + +require ( + cloud.google.com/go v0.116.0 // indirect + cloud.google.com/go/auth v0.9.3 // indirect + cloud.google.com/go/compute/metadata v0.5.0 // indirect + github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect + github.com/google/go-cmp v0.6.0 // indirect + github.com/google/s2a-go v0.1.8 // indirect + github.com/googleapis/enterprise-certificate-proxy v0.3.4 // indirect + github.com/gorilla/websocket v1.5.3 // indirect + go.opencensus.io v0.24.0 // indirect + golang.org/x/crypto v0.36.0 // indirect + golang.org/x/net v0.38.0 // indirect + golang.org/x/sys v0.31.0 // indirect + golang.org/x/text v0.23.0 // indirect + google.golang.org/genai v1.64.0 // indirect + google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1 // indirect + google.golang.org/grpc v1.66.2 // indirect + google.golang.org/protobuf v1.34.2 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..6f02bb4 --- /dev/null +++ b/go.sum @@ -0,0 +1,124 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.116.0 h1:B3fRrSDkLRt5qSHWe40ERJvhvnQwdZiHu0bJOpldweE= +cloud.google.com/go v0.116.0/go.mod h1:cEPSRWPzZEswwdr9BxE6ChEn01dWlTaF05LiC2Xs70U= +cloud.google.com/go/auth v0.9.3 h1:VOEUIAADkkLtyfr3BLa3R8Ed/j6w1jTBmARx+wb5w5U= +cloud.google.com/go/auth v0.9.3/go.mod h1:7z6VY+7h3KUdRov5F1i8NDP5ZzWKYmEPO842BgCsmTk= +cloud.google.com/go/compute/metadata v0.5.0 h1:Zr0eK8JbFv6+Wi4ilXAR8FJ3wyNdpxHKJNPos6LTZOY= +cloud.google.com/go/compute/metadata v0.5.0/go.mod h1:aHnloV2TPI38yx4s9+wAZhHykWvVCfu7hQbF+9CWoiY= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= +github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= +github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE= +github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= +github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8= +github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA= +github.com/golang/protobuf v1.4.0-rc.2/go.mod 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v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/s2a-go v0.1.8 h1:zZDs9gcbt9ZPLV0ndSyQk6Kacx2g/X+SKYovpnz3SMM= +github.com/google/s2a-go v0.1.8/go.mod h1:6iNWHTpQ+nfNRN5E00MSdfDwVesa8hhS32PhPO8deJA= +github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/googleapis/enterprise-certificate-proxy v0.3.4 h1:XYIDZApgAnrN1c855gTgghdIA6Stxb52D5RnLI1SLyw= +github.com/googleapis/enterprise-certificate-proxy v0.3.4/go.mod h1:YKe7cfqYXjKGpGvmSg28/fFvhNzinZQm8DGnaburhGA= +github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg= +github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod 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h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c= +google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg= +google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/main.go b/main.go new file mode 100644 index 0000000..810997f --- /dev/null +++ b/main.go @@ -0,0 +1,120 @@ +package main + +import ( + "context" + "encoding/json" + "log" + "net/http" + "os" + + "google.golang.org/genai" +) + +var geminiClient *genai.Client + +func main() { + loadDotEnv(".env") + + ctx := context.Background() + client, err := genai.NewClient(ctx, &genai.ClientConfig{ + APIKey: os.Getenv("GEMINI_API_KEY"), + Backend: genai.BackendGeminiAPI, + }) + if err != nil { + log.Fatalf("failed to create genai client: %v", err) + } + geminiClient = client + + port := os.Getenv("PORT") + if port == "" { + port = "8080" + } + + http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) { + w.WriteHeader(http.StatusOK) + w.Write([]byte("ok")) + }) + http.HandleFunc("/api/video-meta", handleVideoMeta) + http.HandleFunc("/api/chat", handleChat) + http.HandleFunc("/api/unlock", handleUnlock) + http.Handle("/", http.FileServer(http.Dir("web"))) + + log.Printf("listening on :%s", port) + if err := http.ListenAndServe(":"+port, nil); err != nil { + log.Fatal(err) + } +} + +func handleVideoMeta(w http.ResponseWriter, r *http.Request) { + id := r.URL.Query().Get("id") + if id == "" { + http.Error(w, "missing id", http.StatusBadRequest) + return + } + meta, err := fetchVideoMeta(id, os.Getenv("YOUTUBE_API_KEY")) + if err != nil { + http.Error(w, err.Error(), http.StatusBadGateway) + return + } + w.Header().Set("Content-Type", "application/json") + json.NewEncoder(w).Encode(meta) +} + +type chatRequest struct { + VideoTitle string `json:"videoTitle"` + VideoDescription string `json:"videoDescription"` + History []chatTurn `json:"history"` + Message string `json:"message"` + UnlockCode string `json:"unlockCode"` +} + +type chatResponse struct { + Reply string `json:"reply"` + Model string `json:"model"` +} + +func handleChat(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodPost { + http.Error(w, "method not allowed", http.StatusMethodNotAllowed) + return + } + var req chatRequest + if err := json.NewDecoder(r.Body).Decode(&req); err != nil { + http.Error(w, "bad request", http.StatusBadRequest) + return + } + + model := selectModel(req.UnlockCode, os.Getenv("UNLOCK_CODE")) + reply, err := chatReply(r.Context(), geminiClient, model, req.VideoTitle, req.VideoDescription, req.History, req.Message) + if err != nil { + http.Error(w, err.Error(), http.StatusBadGateway) + return + } + + w.Header().Set("Content-Type", "application/json") + json.NewEncoder(w).Encode(chatResponse{Reply: reply, Model: model}) +} + +type unlockRequest struct { + Code string `json:"code"` +} + +type unlockResponse struct { + Ok bool `json:"ok"` + Model string `json:"model"` +} + +func handleUnlock(w http.ResponseWriter, r *http.Request) { + if r.Method != http.MethodPost { + http.Error(w, "method not allowed", http.StatusMethodNotAllowed) + return + } + var req unlockRequest + if err := json.NewDecoder(r.Body).Decode(&req); err != nil { + http.Error(w, "bad request", http.StatusBadRequest) + return + } + model := selectModel(req.Code, os.Getenv("UNLOCK_CODE")) + w.Header().Set("Content-Type", "application/json") + json.NewEncoder(w).Encode(unlockResponse{Ok: model == modelGemini, Model: model}) +} diff --git a/web/index.html b/web/index.html new file mode 100644 index 0000000..94df4a7 --- /dev/null +++ b/web/index.html @@ -0,0 +1,260 @@ + + + + + +aibow + + + +
+
+
+ + +
+
+
+
+
+ +
+
+
🐾 aibow
+
🔓 Gemma
+
+ + +
+
+
+
+ + +
+
+
+ + + + + diff --git a/youtube.go b/youtube.go new file mode 100644 index 0000000..fb2f4bf --- /dev/null +++ b/youtube.go @@ -0,0 +1,52 @@ +package main + +import ( + "encoding/json" + "fmt" + "net/http" + "net/url" +) + +type videoMeta struct { + Title string `json:"title"` + Description string `json:"description"` +} + +type ytVideosResponse struct { + Items []struct { + Snippet struct { + Title string `json:"title"` + Description string `json:"description"` + } `json:"snippet"` + } `json:"items"` +} + +func fetchVideoMeta(videoID, apiKey string) (*videoMeta, error) { + q := url.Values{} + q.Set("part", "snippet") + q.Set("id", videoID) + q.Set("key", apiKey) + + resp, err := http.Get("https://www.googleapis.com/youtube/v3/videos?" + q.Encode()) + if err != nil { + return nil, err + } + defer resp.Body.Close() + + if resp.StatusCode != http.StatusOK { + return nil, fmt.Errorf("youtube api status %d", resp.StatusCode) + } + + var parsed ytVideosResponse + if err := json.NewDecoder(resp.Body).Decode(&parsed); err != nil { + return nil, err + } + if len(parsed.Items) == 0 { + return nil, fmt.Errorf("video not found: %s", videoID) + } + + return &videoMeta{ + Title: parsed.Items[0].Snippet.Title, + Description: parsed.Items[0].Snippet.Description, + }, nil +}