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http.go
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http.go
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package lardoon
import (
"bytes"
"database/sql"
"fmt"
"log"
"net/http"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/alioygur/gores"
"github.com/go-chi/chi/v5"
"github.com/go-chi/chi/v5/middleware"
"github.com/go-chi/cors"
)
type HTTPServer struct {
}
func getRequestReplay(w http.ResponseWriter, r *http.Request) *ReplayWithObjects {
replayId := chi.URLParam(r, "id")
row, err := db.Query(`SELECT * FROM replays WHERE id=?`, replayId)
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return nil
}
defer row.Close()
if !row.Next() {
gores.Error(w, 404, "replay not found")
return nil
}
var replay ReplayWithObjects
err = row.Scan(
&replay.Id,
&replay.Path,
&replay.ReferenceTime,
&replay.RecordingTime,
&replay.Title,
&replay.DataSource,
&replay.DataRecorder,
&replay.Duration,
&replay.Size,
)
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return nil
}
replay.Objects = make([]*ReplayObject, 0)
rows, err := db.Query(`SELECT * FROM replay_objects WHERE replay_id = ?`, replay.Id)
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return nil
}
defer rows.Close()
for rows.Next() {
var object ReplayObject
err := rows.Scan(
&object.ReplayId,
&object.Id,
&object.Types,
&object.Name,
&object.Pilot,
&object.CreatedOffset,
&object.DeletedOffset,
)
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return nil
}
replay.Objects = append(replay.Objects, &object)
}
return &replay
}
func (h *HTTPServer) serveEmbeddedFile(path string, w http.ResponseWriter, r *http.Request) {
f, err := static.ReadFile("dist/" + path)
if err != nil {
http.Error(w, "Not Found", http.StatusNotFound)
return
}
fileName := filepath.Base(path)
http.ServeContent(w, r, fileName, time.Now(), bytes.NewReader(f))
}
func (h *HTTPServer) serveEmbeddedStaticAssets(w http.ResponseWriter, r *http.Request) {
param := chi.URLParam(r, "*")
ext := filepath.Ext(param)
if param == "" || (ext != ".js" && ext != ".css") {
param = "index.html"
}
h.serveEmbeddedFile(param, w, r)
}
func (h *HTTPServer) downloadReplay(w http.ResponseWriter, r *http.Request) {
replay := getRequestReplay(w, r)
if replay == nil {
return
}
start := 0
end := -1
startKeys, ok := r.URL.Query()["start"]
if ok && len(startKeys) == 1 {
startInt, err := strconv.ParseInt(startKeys[0], 10, 64)
if err != nil {
gores.Error(w, 400, "invalid start position")
return
}
if startInt > 0 {
start = int(startInt)
}
}
endKeys, ok := r.URL.Query()["end"]
if start != -1 && ok && len(startKeys) == 1 {
endInt, err := strconv.ParseInt(endKeys[0], 10, 64)
if err != nil || endInt < 0 || int(endInt) < start {
gores.Error(w, 400, "invalid end position")
return
}
end = int(endInt)
}
w.Header().Set("Content-Type", "text/plain")
name := filepath.Base(replay.Path)
if start == 0 && end == -1 {
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%v", name))
http.ServeFile(w, r, replay.Path)
} else {
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%v-%v-%v.acmi", replay.Title, start, end))
err := trimTacView(replay.Path, w, start, end)
if err != nil {
log.Printf("failed to trim tacview: %v", err)
gores.Error(w, 400, "failed to trim tacview")
return
}
}
}
func (h *HTTPServer) getReplay(w http.ResponseWriter, r *http.Request) {
replay := getRequestReplay(w, r)
if replay == nil {
return
}
gores.JSON(w, 200, replay)
}
func (h *HTTPServer) listReplays(w http.ResponseWriter, r *http.Request) {
var rows *sql.Rows
var err error
filterKeys, ok := r.URL.Query()["filter"]
if ok && len(filterKeys) == 1 {
rows, err = db.Query(`
SELECT * FROM replays r WHERE r.id IN (
SELECT ro.replay_id FROM replay_objects ro
WHERE LOWER(ro.pilot) LIKE ?
) ORDER BY recording_time DESC`, "%"+strings.ToLower(filterKeys[0])+"%")
} else {
rows, err = db.Query(`SELECT * FROM replays ORDER BY recording_time DESC`)
}
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return
}
defer rows.Close()
replays := make([]*Replay, 0)
for rows.Next() {
var replay Replay
err := rows.Scan(
&replay.Id,
&replay.Path,
&replay.ReferenceTime,
&replay.RecordingTime,
&replay.Title,
&replay.DataSource,
&replay.DataRecorder,
&replay.Duration,
&replay.Size,
)
if err != nil {
gores.Error(w, 500, fmt.Sprintf("error: %v", err))
return
}
replays = append(replays, &replay)
}
gores.JSON(w, 200, replays)
}
func (h *HTTPServer) Run(bind string) error {
r := chi.NewRouter()
r.Use(middleware.Logger)
r.Use(cors.Handler(cors.Options{
AllowedOrigins: []string{"https://*", "http://*"},
AllowedMethods: []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
AllowedHeaders: []string{"Accept", "Authorization", "Content-Type"},
AllowCredentials: false,
MaxAge: 300,
}))
r.Get("/*", func(w http.ResponseWriter, r *http.Request) {
h.serveEmbeddedFile("index.html", w, r)
})
r.Get("/static/*", h.serveEmbeddedStaticAssets)
r.Get("/api/replay", h.listReplays)
r.Get("/api/replay/{id}", h.getReplay)
r.Get("/api/replay/{id}/download", h.downloadReplay)
return http.ListenAndServe(bind, r)
}