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package db
import (
"fmt"
"os"
"time"
"github.com/jackyzha0/ctrl-v/hashing"
"github.com/joho/godotenv"
log "github.com/sirupsen/logrus"
)
func init() {
// load .env file
err := godotenv.Load()
if err != nil {
log.Fatal("Error loading .env file: %s", err.Error())
}
mUser := os.Getenv("MONGO_USER")
mPass := os.Getenv("MONGO_PASS")
mIP := os.Getenv("MONGO_SHARD_URL")
initSessions(mUser, mPass, mIP)
}
const TitleLimit = 100
const ContentLimit = 100000
// creates a new paste with title, content and hash, returns the hash of the created paste
func New(ip, content, expiry, title, password string) (string, error) {
// generate hash from ip
hash := hashing.GenerateURI(ip)
// check for size of title and content
errs := checkLengths(title, content)
if errs != nil {
return "", errs
}
// hash given password
hashedPass, err := hashing.HashPassword(password)
if err != nil {
return "", fmt.Errorf("could not hash password: %s", err.Error())
}
// create new struct
new := Paste{
Hash: hash,
Content: content,
Title: title,
Password: hashedPass,
}
// check if expiry
if expiry != "" {
t, err := time.Parse(time.RFC3339, expiry)
// if time format not current
if err != nil {
return "", err
}
// time is in the past
if time.Now().After(t) {
return "", fmt.Errorf("time %s is in the past", t.String())
}
new.Expiry = t
} else {
// 5 year expiry
new.Expiry = time.Now().Add(time.Hour * 43800)
}
// insert struct
log.Infof("create new paste with hash %s", hash)
insertErr := insert(new)
return hash, insertErr
}
func checkLengths(title string, content string) error {
errs := ""
if len(title) > TitleLimit {
errs += fmt.Sprintf("title is longer than character limit of %d\n", TitleLimit)
}
if len(content) > ContentLimit {
errs += fmt.Sprintf("content is longer than character limit of %d\n", ContentLimit)
}
// if any errors were found
if errs != "" {
return fmt.Errorf(errs)
}
return nil
}
// lookup
func Lookup(hash string) (Paste, error) {
return fetch(hash)
}
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