ripple-api/app/v1/friend.go
2016-04-08 19:23:52 +02:00

260 lines
6.4 KiB
Go

package v1
import (
"database/sql"
"encoding/json"
"strconv"
"strings"
"time"
"github.com/osuripple/api/common"
)
type friendData struct {
userData
IsMutual bool `json:"is_mutual"`
}
// FriendsGET is the API request handler for GET /friends.
// It retrieves an user's friends, and whether the friendship is mutual or not.
func FriendsGET(md common.MethodData) (r common.Response) {
var myFrienders []int
myFriendersRaw, err := md.DB.Query("SELECT user1 FROM users_relationships WHERE user2 = ?", md.ID())
if err != nil {
md.Err(err)
r = Err500
return
}
defer myFriendersRaw.Close()
for myFriendersRaw.Next() {
var i int
err := myFriendersRaw.Scan(&i)
if err != nil {
md.Err(err)
continue
}
myFrienders = append(myFrienders, i)
}
if err := myFriendersRaw.Err(); err != nil {
md.Err(err)
}
// Yes.
myFriendsQuery := `
SELECT
users.id, users.username, users.register_datetime, users.rank, users.latest_activity,
users_stats.username_aka, users_stats.badges_shown,
users_stats.country, users_stats.show_country
FROM users_relationships
LEFT JOIN users
ON users_relationships.user2 = users.id
LEFT JOIN users_stats
ON users_relationships.user2=users_stats.id
WHERE users_relationships.user1=?
ORDER BY users_relationships.id`
results, err := md.DB.Query(myFriendsQuery+common.Paginate(md.C.Query("p"), md.C.Query("l")), md.ID())
if err != nil {
md.Err(err)
r = Err500
return
}
var myFriends []friendData
defer results.Close()
for results.Next() {
newFriend := friendPuts(md, results)
for _, uid := range myFrienders {
if uid == newFriend.ID {
newFriend.IsMutual = true
break
}
}
myFriends = append(myFriends, newFriend)
}
if err := results.Err(); err != nil {
md.Err(err)
}
r.Code = 200
r.Data = myFriends
return
}
func friendPuts(md common.MethodData, row *sql.Rows) (user friendData) {
var err error
registeredOn := int64(0)
latestActivity := int64(0)
var badges string
var showcountry bool
err = row.Scan(&user.ID, &user.Username, &registeredOn, &user.Rank, &latestActivity, &user.UsernameAKA, &badges, &user.Country, &showcountry)
if err != nil {
md.Err(err)
return
}
user.RegisteredOn = time.Unix(registeredOn, 0)
user.LatestActivity = time.Unix(latestActivity, 0)
badgesSl := strings.Split(badges, ",")
for _, badge := range badgesSl {
if badge != "" && badge != "0" {
// We are ignoring errors because who really gives a shit if something's gone wrong on our end in this
// particular thing, we can just silently ignore this.
nb, err := strconv.Atoi(badge)
if err == nil && nb != 0 {
user.Badges = append(user.Badges, nb)
}
}
}
// If the user wants to stay anonymous, don't show their country.
// This can be overriden if we have the ReadConfidential privilege and the user we are accessing is the token owner.
if !(showcountry || (md.User.Privileges.HasPrivilegeReadConfidential() && user.ID == md.ID())) {
user.Country = "XX"
}
return
}
type friendsWithData struct {
Friends bool `json:"friend"`
Mutual bool `json:"mutual"`
}
// FriendsWithGET checks the current user is friends with the one passed in the request path.
func FriendsWithGET(md common.MethodData) (r common.Response) {
r.Code = 200
var d friendsWithData
uid, err := strconv.Atoi(md.C.Param("id"))
if err != nil {
r.Data = d
return
}
err = md.DB.QueryRow("SELECT EXISTS(SELECT 1 FROM users_relationships WHERE user1 = ? AND user2 = ? LIMIT 1), EXISTS(SELECT 1 FROM users_relationships WHERE user2 = ? AND user1 = ? LIMIT 1)", md.ID(), uid, md.ID(), uid).Scan(&d.Friends, &d.Mutual)
if err != sql.ErrNoRows && err != nil {
md.Err(err)
r = Err500
return
}
r.Data = d
return
}
// FriendsAddGET is the GET version of FriendsAddPOST.
func FriendsAddGET(md common.MethodData) common.Response {
uidS := md.C.Param("id")
uid, err := strconv.Atoi(uidS)
if err != nil {
return common.Response{
Code: 400,
Message: "Nope. That's not a number.",
}
}
return addFriend(md, uid)
}
type friendAddPOSTData struct {
UserID int `json:"user_id"`
}
// FriendsAddPOST allows for adding friends. Yup. Easy as that.
func FriendsAddPOST(md common.MethodData) (r common.Response) {
d := friendAddPOSTData{}
err := json.Unmarshal(md.RequestData, &d)
if err != nil {
md.Err(err)
r = Err500
return
}
return addFriend(md, d.UserID)
}
func addFriend(md common.MethodData, u int) (r common.Response) {
if md.ID() == u {
r.Code = 400
r.Message = "Just so you know: you can't add yourself to your friends."
return
}
if !userExists(md, u) {
r.Code = 404
r.Message = "I'd also like to be friends with someone who doesn't even exist (???), however that's NOT POSSIBLE."
return
}
var (
relExists bool
isMutual bool
)
err := md.DB.QueryRow("SELECT EXISTS(SELECT 1 FROM users_relationships WHERE user1 = ? AND user2 = ?), EXISTS(SELECT 1 FROM users_relationships WHERE user2 = ? AND user1 = ?)", md.ID(), u, md.ID(), u).Scan(&relExists, &isMutual)
if err != nil && err != sql.ErrNoRows {
md.Err(err)
r = Err500
return
}
if !relExists {
_, err := md.DB.Exec("INSERT INTO users_relationships(user1, user2) VALUES (?, ?)", md.User.UserID, u)
if err != nil {
md.Err(err)
r = Err500
return
}
}
r.Code = 200
r.Data = friendsWithData{
Friends: true,
Mutual: isMutual,
}
return
}
// userExists makes sure an user exists.
func userExists(md common.MethodData, u int) (r bool) {
err := md.DB.QueryRow("SELECT EXISTS(SELECT 1 FROM users WHERE id = ?)", u).Scan(&r)
if err != nil && err != sql.ErrNoRows {
md.Err(err)
}
return
}
// FriendsDelGET is the GET version of FriendDelPOST.
func FriendsDelGET(md common.MethodData) common.Response {
uidS := md.C.Param("id")
uid, err := strconv.Atoi(uidS)
if err != nil {
return common.Response{
Code: 400,
Message: "Nope. That's not a number.",
}
}
return delFriend(md, uid)
}
// FriendsDelPOST allows for deleting friends.
func FriendsDelPOST(md common.MethodData) (r common.Response) {
d := friendAddPOSTData{}
err := json.Unmarshal(md.RequestData, &d)
if err != nil {
md.Err(err)
r = Err500
return
}
return delFriend(md, d.UserID)
}
func delFriend(md common.MethodData, u int) common.Response {
_, err := md.DB.Exec("DELETE FROM users_relationships WHERE user1 = ? AND user2 = ?", md.ID(), u)
if err != nil {
md.Err(err)
return Err500
}
return common.Response{
Code: 200,
Data: friendsWithData{
Friends: false,
Mutual: false,
},
}
}