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wrp
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move flags top top var()

This commit is contained in:
Antoni Sawicki 2022-12-07 23:44:09 -08:00
parent 9b76c045d6
commit e983f244f8
1 changed files with 22 additions and 27 deletions
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49
wrp.go
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@ -39,18 +39,24 @@ import (
"github.com/soniakeys/quant/median"
)
const version = "4.6.0"
var (
version = "4.6.0"
addr = flag.String("l", ":8080", "Listen address:port, default :8080")
headless = flag.Bool("h", true, "Headless mode - hide browser window")
debug = flag.Bool("d", false, "Debug ChromeDP")
noDel = flag.Bool("n", false, "Do not free maps and images after use")
defType = flag.String("t", "gif", "Image type: gif|png")
fgeom = flag.String("g", "1152x600x216", "Geometry: width x height x colors, height can be 0 for unlimited")
htmFnam = flag.String("ui", "wrp.html", "HTML template file for the UI")
delay = flag.Duration("s", 2*time.Second, "Delay/sleep after page is rendered and before screenshot is taken")
srv http.Server
ctx context.Context
cancel context.CancelFunc
img = make(map[string]bytes.Buffer)
ismap = make(map[string]wrpReq)
noDel bool
defType string
defGeom geom
htmlTmpl *template.Template
delay time.Duration
)
//go:embed *.html
@ -132,7 +138,7 @@ func (rq *wrpReq) parseForm() {
rq.buttons = rq.r.FormValue("Fn")
rq.imgType = rq.r.FormValue("t")
if rq.imgType != "gif" && rq.imgType != "png" {
rq.imgType = defType
rq.imgType = *defType
}
log.Printf("%s WrpReq from UI Form: %+v\n", rq.r.RemoteAddr, rq)
}
@ -307,7 +313,7 @@ func (rq *wrpReq) capture() {
}
chromedp.Run(
ctx, emulation.SetDeviceMetricsOverride(int64(float64(rq.width)/rq.zoom), height, rq.zoom, false),
chromedp.Sleep(delay), // TODO(tenox): find a better way to determine if page is rendered
chromedp.Sleep(*delay), // TODO(tenox): find a better way to determine if page is rendered
)
// Capture screenshot...
err = chromedp.Run(ctx, chromedpCaptureScreenshot(&pngcap, rq.height))
@ -397,7 +403,7 @@ func mapServer(w http.ResponseWriter, r *http.Request) {
log.Printf("Unable to find map %s\n", r.URL.Path)
return
}
if !noDel {
if !*noDel {
defer delete(ismap, r.URL.Path)
}
n, err := fmt.Sscanf(r.URL.RawQuery, "%d,%d", &rq.mouseX, &rq.mouseY)
@ -424,7 +430,7 @@ func imgServer(w http.ResponseWriter, r *http.Request) {
log.Printf("%s Unable to find image %s\n", r.RemoteAddr, r.URL.Path)
return
}
if !noDel {
if !*noDel {
defer delete(img, r.URL.Path)
}
switch {
@ -486,34 +492,23 @@ builtin:
// Main...
func main() {
var addr, fgeom, tHTML string
var headless bool
var debug bool
var err error
flag.StringVar(&addr, "l", ":8080", "Listen address:port, default :8080")
flag.BoolVar(&headless, "h", true, "Headless mode - hide browser window")
flag.BoolVar(&debug, "d", false, "Debug ChromeDP")
flag.BoolVar(&noDel, "n", false, "Do not free maps and images after use")
flag.StringVar(&defType, "t", "gif", "Image type: gif|png")
flag.StringVar(&fgeom, "g", "1152x600x216", "Geometry: width x height x colors, height can be 0 for unlimited")
flag.StringVar(&tHTML, "ui", "wrp.html", "HTML template file for the UI")
flag.DurationVar(&delay, "s", 2*time.Second, "Delay/sleep after page is rendered and before screenshot is taken")
flag.Parse()
if len(os.Getenv("PORT")) > 0 {
addr = ":" + os.Getenv(("PORT"))
*addr = ":" + os.Getenv(("PORT"))
}
n, err := fmt.Sscanf(fgeom, "%dx%dx%d", &defGeom.w, &defGeom.h, &defGeom.c)
n, err := fmt.Sscanf(*fgeom, "%dx%dx%d", &defGeom.w, &defGeom.h, &defGeom.c)
if err != nil || n != 3 {
log.Fatalf("Unable to parse -g geometry flag / %s", err)
}
opts := append(chromedp.DefaultExecAllocatorOptions[:],
chromedp.Flag("headless", headless),
chromedp.Flag("headless", *headless),
chromedp.Flag("hide-scrollbars", false),
)
actx, acancel := chromedp.NewExecAllocator(context.Background(), opts...)
defer acancel()
switch debug {
switch *debug {
case true:
ctx, cancel = chromedp.NewContext(actx, chromedp.WithDebugf(log.Printf))
default:
@ -541,15 +536,15 @@ func main() {
log.Printf("Web Rendering Proxy Version %s\n", version)
log.Printf("Args: %q", os.Args)
log.Printf("Default Img Type: %v, Geometry: %+v", defType, defGeom)
log.Printf("Default Img Type: %v, Geometry: %+v", *defType, defGeom)
htmlTmpl, err = template.New("wrp.html").Parse(tmpl(tHTML))
htmlTmpl, err = template.New("wrp.html").Parse(tmpl(*htmFnam))
if err != nil {
log.Fatal(err)
}
log.Printf("Starting WRP http server on %s\n", addr)
srv.Addr = addr
log.Printf("Starting WRP http server on %s\n", *addr)
srv.Addr = *addr
err = srv.ListenAndServe()
if err != nil {
log.Fatal(err)