Add initial project files

handlers/images.go

@@ -0,0 +1,71 @@
+package handlers
+
+import (
+	"docker-manager/docker"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+func ListImagesHandler(w http.ResponseWriter, r *http.Request, client *docker.Client) {
+	var images []map[string]interface{}
+	if err := client.GetJSON("/images/json", &images); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	if images == nil {
+		w.Write([]byte("[]"))
+	} else {
+		json.NewEncoder(w).Encode(images)
+	}
+}
+
+func RemoveImageHandler(w http.ResponseWriter, r *http.Request, client *docker.Client, id string) {
+	if resp, err := client.Do("DELETE", fmt.Sprintf("/images/%s?force=true", id), nil); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	} else {
+		defer resp.Body.Close()
+		w.WriteHeader(resp.StatusCode)
+	}
+}
+
+func PullImageHandler(w http.ResponseWriter, r *http.Request, client *docker.Client) {
+	name := r.URL.Query().Get("name")
+	if name == "" {
+		http.Error(w, "name parameter required", http.StatusBadRequest)
+		return
+	}
+
+	// Strip tag if contains ":"
+	ref := name
+	if strings.Contains(name, ":") {
+		parts := strings.Split(name, ":")
+		ref = parts[0]
+	}
+
+	body, err := client.DoStream("POST", fmt.Sprintf("/images/create?fromImage=%s", ref), nil)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer body.Close()
+
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Transfer-Encoding", "chunked")
+
+	// Stream pull progress as JSON lines
+	decoder := json.NewDecoder(body)
+	for {
+		var line map[string]interface{}
+		if err := decoder.Decode(&line); err != nil {
+			break
+		}
+		json.NewEncoder(w).Encode(line)
+		if flusher, ok := w.(http.Flusher); ok {
+			flusher.Flush()
+		}
+	}
+}