1 files changed, 100 insertions, 0 deletions
diff --git a/app/controllers/utilities.go b/app/controllers/utilities.go
new file mode 100644
index 0000000..2eae775
--- /dev/null
+++ b/app/controllers/utilities.go
@@ -0,0 +1,100 @@
+package controllers
+
+import (
+	"crypto/md5"
+	"fmt"
+	"github.com/garyburd/redigo/redis"
+	"github.com/tanema/revel_mailer"
+	"golang.org/x/crypto/bcrypt"
+	"io"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"time"
+)
+
+// Returns the content of a webpage as string
+func Get(url string) (string, error) {
+	response, err := http.Get(url)
+	if err != nil {
+		return "Get request failed.", err
+	}
+
+	defer response.Body.Close()
+	contents, err := ioutil.ReadAll(response.Body)
+	if er != nil {
+		return "Reading body failed.", err
+	}
+
+	return string(contents), nil
+}
+
+// Hashs and returns a string (md5)
+func Hash(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 {
+	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) {
+			//c, err := redis.Dial("tcp", ":6379")
+			if revel.Config.Bool("cache.redis") {
+				// If we use redis as cache we reuse the config part
+				c, err := redis.Dial("tcp", revel.Config.String("cache.hosts"))
+			} else {
+				// Otherwise we use our own configuration
+				c, err := redis.Dial("tcp", revel.Config.String("redis.server")+":"+revel.Config.String("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 nil, nil
+	}
+	p := []byte(password)
+	hash, err := bcrypt.GenerateFromPassword(p, 10)
+	if err != nil {
+		return nil, err
+	}
+	return string(hash)
+}
+
+// Verify password and hash
+func VerifyPassword(password, hash string) (bool, error) {
+	err := bcrypt.CompareHashAndPassword(hash, password)
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}