Files
libredesk/internal/stringutil/stringutil.go
Abhinav Raut 2b25ce32b6 feat: adds nonce check for oidc token exchange
- feat: adds filters support on conversations list
- refactor middlewares.go
- Adds new paginate.go for generating filtered paginated SQL queries this removes sql generation code from the conversations package.
- rename some components
- removes hardcoded `/uploads/`
2024-10-17 04:21:22 +05:30

84 lines
2.0 KiB
Go

// Package stringutil provides string utility functions.
package stringutil
import (
"crypto/rand"
"net/url"
"path/filepath"
"regexp"
"strings"
"github.com/k3a/html2text"
)
var (
regexpNonAlNum = regexp.MustCompile(`[^a-zA-Z0-9\-_\.]+`)
regexpSpaces = regexp.MustCompile(`[\s]+`)
)
// SanitizeAndTruncate removes HTML tags, trims whitespace, makes the text human-readable, and shortens the content to a specified maximum length, appending "..." if truncated.
func SanitizeAndTruncate(content string, maxLen int) string {
plain := strings.TrimSpace(html2text.HTML2Text(content))
if len(plain) > maxLen {
plain = plain[:maxLen] + "..."
}
return plain
}
// SanitizeFilename sanitizes the provided filename.
func SanitizeFilename(fName string) string {
// Trim whitespace.
name := strings.TrimSpace(fName)
// Replace whitespace and "/" with "-"
name = regexpSpaces.ReplaceAllString(name, "-")
// Remove or replace any non-alphanumeric characters
name = regexpNonAlNum.ReplaceAllString(name, "")
// Convert to lowercase
name = strings.ToLower(name)
return filepath.Base(name)
}
// RandomAlNumString generates a random alphanumeric string of length n.
func RandomAlNumString(n int) (string, error) {
const dictionary = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
bytes := make([]byte, n)
if _, err := rand.Read(bytes); err != nil {
return "", err
}
for k, v := range bytes {
bytes[k] = dictionary[v%byte(len(dictionary))]
}
return string(bytes), nil
}
// RandomNumericString generates a random numeric string of length n.
func RandomNumericString(n int) (string, error) {
const dictionary = "0123456789"
bytes := make([]byte, n)
if _, err := rand.Read(bytes); err != nil {
return "", err
}
for k, v := range bytes {
bytes[k] = dictionary[v%byte(len(dictionary))]
}
return string(bytes), nil
}
func GetPathFromURL(rawURL string) (string, error) {
parsedURL, err := url.Parse(rawURL)
if err != nil {
return "", err
}
return parsedURL.Path, nil
}