util

package

v1.3.0 Latest Latest Go to latest Published: May 12, 2026 License: MIT Imports: 6 Imported by: 0

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Valid go.mod file
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Repository

github.com/arvarik/paste

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Documentation ¶

Index ¶

Variables
func ExtToLang(ext string) string
func GenerateID() string
func GetEnv(key, fallback string) string
func GetHighlightedPreview(content, query string, re *regexp.Regexp) string
func GetPreview(content string) string
func IsValidID(id string) bool
func LangToExt(lang string) string

Constants ¶

This section is empty.

Variables ¶

View Source

var TitleSanitizer *strings.Replacer

TitleSanitizer replaces characters in paste titles that could cause path traversal or filesystem issues, replacing them with safe alternatives.

Functions ¶

func ExtToLang ¶

func ExtToLang(ext string) string

ExtToLang converts a file extension (e.g. ".py") to a language name (e.g. "python"). Returns "text" if the extension is not recognized.

func GenerateID ¶

func GenerateID() string

GenerateID creates a cryptographically random 6-character alphanumeric string suitable for use as a paste identifier. Uses crypto/rand to prevent ID prediction.

func GetEnv ¶

func GetEnv(key, fallback string) string

GetEnv reads an environment variable or returns a fallback default.

func GetHighlightedPreview ¶

func GetHighlightedPreview(content, query string, re *regexp.Regexp) string

GetHighlightedPreview returns a preview snippet with the search query wrapped in <mark> tags for visual highlighting. Falls back to GetPreview if the query is not found in the content.

func GetPreview ¶

func GetPreview(content string) string

GetPreview returns a cleaned, truncated preview snippet of paste content for display in the sidebar. Limited to 70 characters with HTML escaping.

func IsValidID ¶

func IsValidID(id string) bool

IsValidID checks if the provided string contains only alphanumeric characters. This is used to validate IDs and prevent path traversal and globbing attacks.

func LangToExt ¶

func LangToExt(lang string) string

LangToExt converts a language name (e.g. "python") to its file extension (e.g. ".py"). Returns ".txt" if the language is not recognized.

Types ¶

This section is empty.

Source Files ¶

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helpers.go

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