95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
// Package branding owns the user-visible telesrv product identity.
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//
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// Protocol identifiers, client detection tokens and third-party compatibility
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// headers do not belong here: callers must only pass text that is rendered to
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// an end user.
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package branding
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import (
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"net/url"
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"regexp"
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"strings"
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)
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const (
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ProductName = "OwpenGram"
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ProductUsername = "owpengram"
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DesktopAppName = "OwpenGram Desktop"
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AndroidAppName = "OwpenGram Android"
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IOSAppName = "OwpenGram iOS"
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MacOSAppName = "OwpenGram macOS"
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WebAAppName = "OwpenGram Web A"
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WebKAppName = "OwpenGram Web K"
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PremiumName = "OwpenGram Premium"
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StarsName = "OwpenGram Stars"
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DefaultPublicURL = "https://owpengram.org"
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)
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// ClientAppName returns the branded display name for a stored client platform.
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// Stored detection tokens remain unchanged; this is only used at presentation
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// boundaries such as account.getAuthorizations.
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func ClientAppName(platform string) string {
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switch strings.ToLower(strings.TrimSpace(platform)) {
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case "android":
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return AndroidAppName
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case "ios":
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return IOSAppName
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case "macos":
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return MacOSAppName
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case "telegram-tt", "weba":
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return WebAAppName
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case "tweb", "webk":
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return WebKAppName
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case "tdesktop", "desktop", "windows":
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return DesktopAppName
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default:
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return ProductName
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}
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}
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// UserVisibleClientPlatform hides internal compatibility tokens from the
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// authorization UI without changing their durable representation.
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func UserVisibleClientPlatform(platform string) string {
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if strings.EqualFold(strings.TrimSpace(platform), "telegram-tt") {
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return "weba"
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}
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return UserVisibleText(platform, "")
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}
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var (
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officialHTTPHostRE = regexp.MustCompile(`(?i)https?://(?:[a-z0-9-]+\.)*(?:telegram\.(?:org|me|com|dog)|t\.me)([^a-z0-9]|$)`)
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officialBareHostRE = regexp.MustCompile(`(?i)(?:(?:[a-z0-9-]+\.)*telegram\.(?:org|me|com|dog)|\bt\.me)([^a-z0-9]|$)`)
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officialBrandRE = regexp.MustCompile(`(?i)telegram|телеграм[\p{L}]*|تيليجرام|تلگرام|텔레그램|טלגרם`)
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technicalIDRE = regexp.MustCompile(`^[A-Za-z0-9-]+(?:[._][A-Za-z0-9-]+)+$`)
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)
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// UserVisibleText replaces the official product brand and its public hosts in
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// text returned to clients. Placeholder syntax, markup and string keys are
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// deliberately untouched by callers; only values should pass through here.
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func UserVisibleText(value, publicBaseURL string) string {
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if value == "" {
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return ""
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}
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baseURL, publicHost := publicDestination(publicBaseURL)
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value = officialHTTPHostRE.ReplaceAllString(value, baseURL+"${1}")
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value = officialBareHostRE.ReplaceAllString(value, publicHost+"${1}")
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// Some platform packs carry dotted or underscored runtime identifiers as
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// values. They are not copy and changing them can break client navigation.
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if technicalIDRE.MatchString(value) {
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return value
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}
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return officialBrandRE.ReplaceAllString(value, ProductName)
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}
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func publicDestination(raw string) (string, string) {
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raw = strings.TrimRight(strings.TrimSpace(raw), "/")
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if raw == "" {
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raw = DefaultPublicURL
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}
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parsed, err := url.Parse(raw)
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if err != nil || parsed.Scheme == "" || parsed.Hostname() == "" {
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raw = DefaultPublicURL
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parsed, _ = url.Parse(raw)
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}
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return raw, parsed.Host
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}
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