-
Notifications
You must be signed in to change notification settings - Fork 1
/
handlers.go
141 lines (118 loc) · 4.09 KB
/
handlers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
package main
import (
"context"
"crypto/subtle"
"encoding/json"
"net/http"
"time"
"github.com/gorilla/mux"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
)
func GetAllBlogsHandler(response http.ResponseWriter, request *http.Request) {
writeHeaders(response)
var posts []Post
collection := database.Collection("posts")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
cursor, err := collection.Find(ctx, bson.M{})
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + `" }`))
return
}
defer cursor.Close(ctx)
for cursor.Next(ctx) {
var post Post
cursor.Decode(&post)
posts = append(posts, post)
}
if err := cursor.Err(); err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + `" }`))
return
}
json.NewEncoder(response).Encode(posts)
}
func GetOneBlogHandler(response http.ResponseWriter, request *http.Request) {
writeHeaders(response)
params := mux.Vars(request)
blogId, _ := primitive.ObjectIDFromHex(params["blogId"])
var post Post
collection := database.Collection("posts")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
filter := bson.D{{"_id", blogId}}
err := collection.FindOne(ctx, filter).Decode(&post)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + params["blogId"] + `" }`))
return
}
json.NewEncoder(response).Encode(post)
}
func AddNewBlogHandler(response http.ResponseWriter, request *http.Request) {
writeHeaders(response)
var post Post
_ = json.NewDecoder(request.Body).Decode(&post)
collection := database.Collection("posts")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
result, err := collection.InsertOne(ctx, post)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + `" }`))
return
}
json.NewEncoder(response).Encode(result)
}
func RemoveBlogHandler(response http.ResponseWriter, request *http.Request) {
writeHeaders(response)
vars := mux.Vars(request)
blogID, _ := primitive.ObjectIDFromHex(vars["blogId"])
collection := database.Collection("posts")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
filter := bson.D{{"_id", blogID}}
result, err := collection.DeleteOne(ctx, filter)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + `" }`))
return
}
json.NewEncoder(response).Encode(result)
}
func RemoveAllBlogsHandler(response http.ResponseWriter, request *http.Request) {
writeHeaders(response)
collection := database.Collection("posts")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
filter := bson.D{}
result, err := collection.DeleteMany(ctx, filter)
if err != nil {
response.WriteHeader(http.StatusInternalServerError)
response.Write([]byte(`{ "message": "` + err.Error() + `" }`))
return
}
json.NewEncoder(response).Encode(result)
}
func writeHeaders(response http.ResponseWriter) {
response.Header().Set("Content-Type", "application/json")
response.Header().Set("Access-Control-Allow-Origin", "*")
response.Header().Set("Access-Control-Allow-Methods", "GET")
response.Header().Set("Access-Control-Allow-Headers",
"Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
}
func BasicAuth(handler http.HandlerFunc, userHash, passHash []byte, realm string) http.HandlerFunc {
return func(writer http.ResponseWriter, request *http.Request) {
user, pass, ok := request.BasicAuth()
if !ok || subtle.ConstantTimeCompare(hasher(user), userHash) != 1 ||
subtle.ConstantTimeCompare(hasher(pass), passHash) != 1 {
writer.Header().Set("WWW-Authenticate", `Basic realm="`+realm+`"`)
writer.WriteHeader(401)
writer.Write([]byte("Unauthorised.\n"))
return
}
handler(writer, request)
}
}