added ipFilter, implemented select item by user (adding scores) --> not finished yet

README.md

@@ -36,3 +36,12 @@ GET /r/{userid}/{nrec}
 {userid}: is the userid
 {nrec}: number of recommendations requested
 ```
+
+ - Select Item
+
+```
+POST /selectItem
+{
+    userid: "user1",
+    itemid: "item1"
+}

ipFilter.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+func ipFilter(w http.ResponseWriter, r *http.Request) {
+	var err error
+	fmt.Println(r.RemoteAddr)
+	reqIP := strings.Split(r.RemoteAddr, ":")[0]
+	for _, ip := range serverConfig.BlockedIPs {
+		if reqIP == ip {
+			err = errors.New("ip not allowed to post images")
+		}
+	}
+
+	for _, ip := range serverConfig.AllowedIPs {
+		if reqIP != ip {
+			err = errors.New("ip not allowed to post images")
+		}
+	}
+	//return err
+	if err != nil {
+		fmt.Fprintln(w, err.Error())
+		return
+	}
+}

mongodb.go

@@ -110,6 +110,33 @@ func getUserById(id string) (UserModel, error) {
 		return result, err
 	}
 }
+func getItemById(id string) (ItemModel, error) {
+	result := ItemModel{}
+	err := itemCollection.Find(bson.M{"id": id}).One(&result)
+	if err != nil {
+		//user not exist
+		return result, err
+	} else {
+		//user exist
+		return result, err
+	}
+}
+func updateItem(item ItemModel) (ItemModel, error) {
+	err := itemCollection.Update(bson.M{"id": item.ID}, item)
+	if err != nil {
+		//log.Fatal(err)
+		return item, err
+	}
+	return item, err
+}
+func updateUser(user UserModel) (UserModel, error) {
+	err := userCollection.Update(bson.M{"id": user.ID}, user)
+	if err != nil {
+		return user, err
+	}
+	return user, err
+}
+
 func getAllItems() ([]ItemModel, error) {
 	result := []ItemModel{}
 	iter := itemCollection.Find(nil).Limit(100).Iter()

mongodbModels.go

@@ -9,6 +9,7 @@ type ItemModel struct {
 	ID           string
 	TRecommended int
 	TActed       int
+	TScored      int //times acted from recommendation
 }
 
 var scores []float64

serverConfig.go

@@ -22,6 +22,8 @@ type Route struct {
 type ServerConfig struct {
 	ServerIP   string   `json:"serverIP"`
 	ServerPort string   `json:"serverPort"`
+	AllowedIPs []string `json:"allowedIPs"`
+	BlockedIPs []string `json:"blockedIPs"`
 }
 
 var serverConfig ServerConfig

serverConfig.json

@@ -1,4 +1,8 @@
 {
     "serverIP": "127.0.0.1",
-    "serverPort": "3056"
+    "serverPort": "3056",
+    "allowedIPs": [
+        "127.0.0.1"
+    ],
+    "blockedIPs": []
 }

serverRoutes.go

@@ -30,6 +30,12 @@ var routes = Routes{
 		"/user",
 		NewUser,
 	},
+	Route{
+		"SelectItem",
+		"GET",
+		"/selectItem/{userid}/{itemid}",
+		SelectItem,
+	},
 }
 
 //ROUTES
@@ -39,6 +45,7 @@ func Index(w http.ResponseWriter, r *http.Request) {
 }
 
 func NewUser(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
 	decoder := json.NewDecoder(r.Body)
 	var newUser UserModel
 	err := decoder.Decode(&newUser)
@@ -51,6 +58,7 @@ func NewUser(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintln(w, "new user added: ", newUser.ID)
 }
 func Recommendations(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
 	vars := mux.Vars(r)
 	userid := vars["userid"]
 	nrec, err := strconv.Atoi(vars["nrec"])
@@ -61,3 +69,38 @@ func Recommendations(w http.ResponseWriter, r *http.Request) {
 
 	fmt.Fprintln(w, "recommendations")
 }
+func SelectItem(w http.ResponseWriter, r *http.Request) {
+	ipFilter(w, r)
+	vars := mux.Vars(r)
+	userid := vars["userid"]
+	itemid := vars["itemid"]
+	//find item
+	item, err := getItemById(itemid)
+	if err != nil {
+		fmt.Fprintln(w, "item "+itemid+" not found")
+	}
+
+	//increase TActed in item
+	item.TActed = item.TActed + 1
+
+	//save item
+	item, err = updateItem(item)
+	check(err)
+	fmt.Println(item)
+
+	//find user
+	user, err := getUserById(userid)
+	if err != nil {
+		fmt.Fprintln(w, "user "+userid+" not found")
+	}
+
+	//add item to []Actions of user
+	user.Actions = append(user.Actions, itemid)
+
+	//save user
+	user, err = updateUser(user)
+	check(err)
+	fmt.Println(user)
+
+	fmt.Fprintln(w, "user: "+userid+", selects item: "+itemid)
+}

tests.sh

@@ -10,6 +10,16 @@ http http://127.0.0.1:3056/user id="user2" age=32
 echo "------------------"
 
 echo "[Getting recommendations for user]"
-
+echo http http://127.0.0.1:3056/user1/3
+http http://127.0.0.1:3056/r/user1/3
+
+
+echo "[selecting item by user]"
+
+echo http http://127.0.0.1:3056/selectItem/user1/item1
+http http://127.0.0.1:3056/selectItem/user1/item1
+
+
+echo "[Getting recommendations for user]"
 echo http http://127.0.0.1:3056/user1/3
 http http://127.0.0.1:3056/r/user1/3