Golang Website Examples

Example #1

File: main.go Project: MarvinMenzerath/UpAndRunning2

// Checks all enabled Websites
func checkAllSites() {
	// Check for internet-connection
	if !lib.GetConfiguration().Application.RunCheckIfOffline {
		res, err := goreq.Request{Uri: "https://google.com", Method: "HEAD", UserAgent: "UpAndRunning2 (https://github.com/MarvinMenzerath/UpAndRunning2)", MaxRedirects: 1, Timeout: 5 * time.Second}.Do()
		if err != nil {
			logging.MustGetLogger("").Warning("Did not check Websites because of missing internet-connection: ", err)
			return
		} else {
			if res.StatusCode != 200 {
				logging.MustGetLogger("").Warning("Did not check Websites because of missing internet-connection.")
				res.Body.Close()
				return
			}
		}
	}

	// Query the Database
	db := lib.GetDatabase()
	rows, err := db.Query("SELECT id, protocol, url, checkMethod FROM websites WHERE enabled = 1;")
	if err != nil {
		logging.MustGetLogger("").Error("Unable to fetch Websites: ", err)
		return
	}
	defer rows.Close()

	// Check every Website
	count := 0
	for rows.Next() {
		var website lib.Website
		err = rows.Scan(&website.Id, &website.Protocol, &website.Url, &website.CheckMethod)
		if err != nil {
			logging.MustGetLogger("").Error("Unable to read Website-Row: ", err)
			return
		}
		go website.RunCheck(false)
		count++
		time.Sleep(time.Millisecond * 200)
	}

	// Check for Errors
	err = rows.Err()
	if err != nil {
		logging.MustGetLogger("").Error("Unable to read Website-Rows: ", err)
		return
	}

	logging.MustGetLogger("").Info("Checked " + strconv.Itoa(count) + " active Websites.")
}

Example #2

File: api_websites_management.go Project: MarvinMenzerath/UpAndRunning2

// Triggers a check of all enabled Websites.
func ApiWebsiteCheck(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
	if !lib.IsLoggedIn(r) {
		SendJsonMessage(w, http.StatusUnauthorized, false, "Unauthorized.")
		return
	}

	// Get data from Request
	r.ParseForm()
	url := ps.ByName("url")

	// Simple Validation
	if url == "" {
		SendJsonMessage(w, http.StatusBadRequest, false, "Unable to process your Request: Submit a valid value.")
		return
	}

	// Query the Database
	db := lib.GetDatabase()
	var website lib.Website
	err := db.QueryRow("SELECT id, protocol, url, checkMethod FROM websites WHERE url = ?;", url).Scan(&website.Id, &website.Protocol, &website.Url, &website.CheckMethod)

	if err != nil {
		if err == sql.ErrNoRows {
			SendJsonMessage(w, http.StatusNotFound, false, "Unable to process your Request: Could not find Website.")
			return
		} else {
			logging.MustGetLogger("").Error("Unable to get Website's notification settings: ", err)
			SendJsonMessage(w, http.StatusInternalServerError, false, "Unable to process your Request: "+err.Error())
			return
		}
	} else {
		// Run the requested check
		logging.MustGetLogger("").Info("Checking requested Website (" + website.Url + ").")
		website.RunCheck(false)
		SendJsonMessage(w, http.StatusOK, true, "")
	}
}