131 lines
2.8 KiB
Go
131 lines
2.8 KiB
Go
package utils
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import (
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"crypto/rand"
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"fmt"
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"math/big"
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"os"
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"time"
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"github.com/gofiber/fiber/v2"
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"github.com/rs/zerolog/log"
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"lms.de/backend/modules/config"
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"lms.de/backend/modules/database"
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"lms.de/backend/modules/structs"
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)
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func GetXAuhorizationHeader(c *fiber.Ctx) string {
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// check if header is set
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if len(c.GetReqHeaders()[HeaderXAuthorization]) == 0 {
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return ""
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}
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return c.GetReqHeaders()[HeaderXAuthorization][0]
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}
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func GetXApiKeyHeader(c *fiber.Ctx) string {
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// check if header is set
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if len(c.GetReqHeaders()[HeaderXApiKey]) == 0 {
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return ""
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}
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return c.GetReqHeaders()[HeaderXApiKey][0]
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}
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func GetSessionExpiresAtTime() time.Time {
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return time.Now().Add(time.Second * SessionExpiresAtTime)
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}
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func IsPasswordLengthValid(password string) bool {
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lenPassword := len(password)
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if lenPassword < MinPassword || lenPassword > MaxPassword {
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log.Error().Msg("Password length not valid")
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return false
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}
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return true
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}
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// generates a random subdomain and check if it is already in use
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func GenerateSubdomain() string {
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var subdomain string
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var err error
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for {
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subdomain, err = GenerateCode(6)
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if err != nil {
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log.Error().Msg("Failed to generate subdomain")
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return ""
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}
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if !IsSubdomainAlreadyInUse(subdomain) {
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break
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}
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log.Info().Msg("Subdomain already in use, generating new one")
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}
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return subdomain
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}
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func IsSubdomainAlreadyInUse(subdomain string) bool {
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var organization structs.Organization
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if err := database.DB.Where("subdomain = ?", subdomain).First(&organization).Error; err != nil {
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return false
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}
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return true
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}
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func GenerateCode(codeLength int) (string, error) {
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var letters = "abcdefghijklmnopqrstuvwxyz"
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r := make([]byte, codeLength)
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for i := 0; i < codeLength; i++ {
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num, err := rand.Int(rand.Reader, big.NewInt(int64(len(letters))))
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if err != nil {
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log.Error().Msgf("Failed to session: %v", err)
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return "", err
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}
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r[i] = letters[num.Int64()]
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}
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return string(r), nil
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}
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func IsFileTypeAllowed(contentType string, allowedContentTypes []string) bool {
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for _, aType := range allowedContentTypes {
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if aType == contentType {
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return true
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}
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}
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return false
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}
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func DeleteFile(filePath string) {
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os.Remove(filePath)
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}
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func CreateFolderStructureIfNotExists(folderPath string) {
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if _, err := os.Stat(folderPath); os.IsNotExist(err) {
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if err := os.MkdirAll(folderPath, os.ModePerm); err != nil {
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log.Error().Msgf("Failed to create folder structure, err: %v", err)
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}
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}
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}
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// GetFullImagePath returns the database path and the public path for the image
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func GetFullImagePath(organizationId string, lessonId string) (databasePath string, publicPath string) {
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return fmt.Sprintf(
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"o/%s/l/%s/", organizationId, lessonId),
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fmt.Sprintf(
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"%s/o/%s/l/%s/", config.Cfg.FolderPaths.PublicStatic, organizationId, lessonId)
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}
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