1 files changed, 115 insertions, 0 deletions
diff --git a/app/utilities.go b/app/utilities.go
new file mode 100644
index 0000000..65a6716
--- /dev/null
+++ b/app/utilities.go
@@ -0,0 +1,115 @@
+package main
+
+import (
+	"bytes"
+	"crypto/md5"
+	"encoding/gob"
+	"errors"
+	"fmt"
+	"github.com/garyburd/redigo/redis"
+	"golang.org/x/crypto/bcrypt"
+	//	"html/template"
+	"io"
+	"io/ioutil"
+	"log"
+	"math/rand"
+	"net/http"
+	"os"
+	"time"
+)
+
+// Returns the response from a GET request plus the headers as map and the content as string
+func HttpGet(url string) (*http.Response, string, error) {
+	r, err := http.Get(url)
+	if err != nil {
+		return r, "Get request failed.", err
+	}
+
+	defer r.Body.Close()
+	contents, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		return r, "Reading body failed.", err
+	}
+
+	return r, string(contents), nil
+}
+
+// Hashs and returns a string (md5)
+func Md5Hash(content string) string {
+	h := md5.New()
+	io.WriteString(h, content)
+	hash := fmt.Sprintf("%x", h.Sum(nil))
+
+	return hash
+}
+
+// Creates a random string
+func RandomKey() string {
+	rand.Seed(time.Now().UTC().UnixNano())
+	letters := []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
+	key := make([]rune, 40)
+	for i := range key {
+		key[i] = letters[rand.Intn(len(letters))]
+	}
+
+	return string(key)
+}
+
+var pool = newPool()
+
+// Creates a pool with connections to Redis
+func newPool() *redis.Pool {
+	return &redis.Pool{
+		MaxIdle:     3,
+		IdleTimeout: 240 * time.Second,
+		Dial: func() (redis.Conn, error) {
+			redis_server := os.Getenv("STATUS_REDIS_SERVER")
+			redis_port := os.Getenv("STATUS_REDIS_PORT")
+			c, err := redis.Dial("tcp", redis_server+":"+redis_port)
+			if err != nil {
+				return nil, err
+			}
+			return c, err
+		},
+		TestOnBorrow: func(c redis.Conn, t time.Time) error {
+			_, err := c.Do("PING")
+			return err
+		},
+	}
+}
+
+// Hashs password with bcrypt and returns the string
+func HashPassword(password string) (string, error) {
+	if password == "" {
+		return "", errors.New("Empty password.")
+	}
+	p := []byte(password)
+	hash, err := bcrypt.GenerateFromPassword(p, 10)
+	if err != nil {
+		return "", err
+	}
+	return string(hash), nil
+}
+
+// Verify password and hash
+func VerifyPassword(password, hash string) bool {
+	if hash == "" || password == "" {
+		return false
+	}
+	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
+	if err != nil {
+		log.Printf("%s \n", err)
+		return false
+	}
+	return true
+}
+
+func GetBytes(key interface{}) ([]byte, error) {
+	var buf bytes.Buffer
+	enc := gob.NewEncoder(&buf)
+	err := enc.Encode(key)
+	if err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}