Add maintenance check in TibiadataHTMLDataCollectorV3

[tobiasehlert]

We need to have some way to detect maintenance mode and return some proper message.
This should be done in the TibiadataHTMLDataCollectorV3 function or somewhere more suitable.

Here is some initial logging at least:

tibiadata-api-go/src/webserver.go

Lines 239 to 245 in 3f3aef1

	// Check if page is in maintenance mode
	if res.StatusCode() == 302 {
	log.Printf("[info] TibiadataHTMLDataCollectorV3 (URL: %s): Page tibia.com returns 302, probably maintenance mode enabled. ", TibiaURL)
	// TODO
	// do response with maintenance mode..
	}

[tobiasehlert]

This has been fixed in #34.

tibiadata-api-go/src/webserver.go

Lines 259 to 267 in 78e658b

	case http.StatusFound:
	// Check if page is in maintenance mode
	location, _ := res.RawResponse.Location()
	if location.Host == "maintenance.tibia.com" {
	LogMessage := "maintenance mode detected on tibia.com"
	log.Printf("[info] TibiadataHTMLDataCollectorV3: %s!", LogMessage)
	return "", errors.New(LogMessage)
	}
	fallthrough