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
|
package db
import (
"context"
"crypto/tls"
"fmt"
"time"
log "github.com/sirupsen/logrus"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/mongo/readpref"
)
var Client *mongo.Client
var Session *mongo.Session
var pastes *mongo.Collection
func initSessions(user, pass, ip string) {
log.Infof("attempting connection to %s", ip)
// build uri string
URIfmt := "mongodb://%s:%s@%s:27017"
mongoURI := fmt.Sprintf(URIfmt, user, pass, ip)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
c, err := mongo.Connect(ctx, options.Client().ApplyURI(mongoURI).SetTLSConfig(&tls.Config{}))
Client = c
if err != nil {
log.Fatalf("error establishing connection to mongo: %s", err.Error())
}
err = Client.Ping(ctx, readpref.Primary())
if err != nil {
log.Fatalf("error pinging mongo: %s", err.Error())
}
// ensure expiry check
expiryIndex := options.Index().SetExpireAfterSeconds(0)
sessionTTL := mongo.IndexModel{
Keys: []string{"expiry"},
Options: expiryIndex,
}
// ensure hashes are unique
uniqueIndex := options.Index().SetUnique(true)
uniqueHashes := mongo.IndexModel{
Keys: []string{"hash"},
Options: uniqueIndex,
}
// Define connection to Databases
pastes = Client.Database("main").Collection("pastes")
_, _ = pastes.Indexes().CreateOne(ctx, sessionTTL)
_, _ = pastes.Indexes().CreateOne(ctx, uniqueHashes)
}
func insert(new Paste) error {
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
_, err := pastes.InsertOne(ctx, new)
return err
}
func fetch(hash string) (Paste, error) {
p := Paste{}
q := bson.M{"hash": hash}
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
err := pastes.FindOne(ctx, q).Decode(&p)
return p, err
}
|