mirror of
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235 lines
5.9 KiB
Go
235 lines
5.9 KiB
Go
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package template // import "miniflux.app/v2/internal/template"
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import (
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"fmt"
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"html/template"
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"math"
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"net/mail"
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"slices"
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"strings"
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"time"
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"miniflux.app/v2/internal/config"
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"miniflux.app/v2/internal/crypto"
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"miniflux.app/v2/internal/http/route"
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"miniflux.app/v2/internal/locale"
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"miniflux.app/v2/internal/model"
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"miniflux.app/v2/internal/proxy"
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"miniflux.app/v2/internal/timezone"
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"miniflux.app/v2/internal/urllib"
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"github.com/gorilla/mux"
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)
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type funcMap struct {
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router *mux.Router
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}
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// Map returns a map of template functions that are compiled during template parsing.
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func (f *funcMap) Map() template.FuncMap {
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return template.FuncMap{
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"formatFileSize": formatFileSize,
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"dict": dict,
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"hasKey": hasKey,
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"truncate": truncate,
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"isEmail": isEmail,
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"baseURL": func() string {
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return config.Opts.BaseURL()
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},
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"rootURL": func() string {
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return config.Opts.RootURL()
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},
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"hasOAuth2Provider": func(provider string) bool {
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return config.Opts.OAuth2Provider() == provider
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},
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"hasAuthProxy": func() bool {
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return config.Opts.AuthProxyHeader() != ""
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},
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"route": func(name string, args ...interface{}) string {
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return route.Path(f.router, name, args...)
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},
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"safeURL": func(url string) template.URL {
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return template.URL(url)
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},
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"safeCSS": func(str string) template.CSS {
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return template.CSS(str)
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},
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"noescape": func(str string) template.HTML {
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return template.HTML(str)
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},
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"proxyFilter": func(data string) string {
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return proxy.ProxyRewriter(f.router, data)
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},
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"proxyURL": func(link string) string {
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proxyOption := config.Opts.ProxyOption()
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if proxyOption == "all" || (proxyOption != "none" && !urllib.IsHTTPS(link)) {
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return proxy.ProxifyURL(f.router, link)
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}
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return link
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},
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"mustBeProxyfied": func(mediaType string) bool {
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return slices.Contains(config.Opts.ProxyMediaTypes(), mediaType)
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},
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"domain": func(websiteURL string) string {
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return urllib.Domain(websiteURL)
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},
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"hasPrefix": func(str, prefix string) bool {
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return strings.HasPrefix(str, prefix)
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},
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"contains": func(str, substr string) bool {
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return strings.Contains(str, substr)
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},
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"replace": func(str, old, new string) string {
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return strings.Replace(str, old, new, 1)
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},
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"isodate": func(ts time.Time) string {
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return ts.Format("2006-01-02 15:04:05")
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},
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"theme_color": func(theme, colorScheme string) string {
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return model.ThemeColor(theme, colorScheme)
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},
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"icon": func(iconName string) template.HTML {
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return template.HTML(fmt.Sprintf(
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`<svg class="icon" aria-hidden="true"><use xlink:href="%s#icon-%s"/></svg>`,
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route.Path(f.router, "appIcon", "filename", "sprite.svg"),
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iconName,
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))
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},
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"nonce": func() string {
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return crypto.GenerateRandomStringHex(16)
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},
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"deRef": func(i *int) int { return *i },
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"duration": duration,
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// These functions are overrode at runtime after the parsing.
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"elapsed": func(timezone string, t time.Time) string {
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return ""
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},
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"t": func(key interface{}, args ...interface{}) string {
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return ""
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},
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"plural": func(key string, n int, args ...interface{}) string {
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return ""
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},
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}
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}
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func dict(values ...interface{}) (map[string]interface{}, error) {
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if len(values)%2 != 0 {
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return nil, fmt.Errorf("dict expects an even number of arguments")
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}
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dict := make(map[string]interface{}, len(values)/2)
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for i := 0; i < len(values); i += 2 {
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key, ok := values[i].(string)
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if !ok {
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return nil, fmt.Errorf("dict keys must be strings")
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}
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dict[key] = values[i+1]
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}
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return dict, nil
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}
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func hasKey(dict map[string]string, key string) bool {
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if value, found := dict[key]; found {
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return value != ""
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}
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return false
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}
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func truncate(str string, max int) string {
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runes := 0
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for i := range str {
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runes++
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if runes > max {
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return str[:i] + "…"
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}
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}
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return str
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}
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func isEmail(str string) bool {
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_, err := mail.ParseAddress(str)
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return err == nil
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}
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// Returns the duration in human readable format (hours and minutes).
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func duration(t time.Time) string {
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return durationImpl(t, time.Now())
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}
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// Accepts now argument for easy testing
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func durationImpl(t time.Time, now time.Time) string {
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if t.IsZero() {
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return ""
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}
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diff := t.Sub(now)
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if diff < 0 {
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return ""
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}
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// Round to nearest second to get e.g. "14m56s" rather than "14m56.245483933s"
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return diff.Round(time.Second).String()
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}
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func elapsedTime(printer *locale.Printer, tz string, t time.Time) string {
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if t.IsZero() {
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return printer.Printf("time_elapsed.not_yet")
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}
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now := timezone.Now(tz)
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t = timezone.Convert(tz, t)
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if now.Before(t) {
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return printer.Printf("time_elapsed.not_yet")
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}
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diff := now.Sub(t)
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// Duration in seconds
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s := diff.Seconds()
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// Duration in days
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d := int(s / 86400)
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switch {
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case s < 60:
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return printer.Printf("time_elapsed.now")
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case s < 3600:
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minutes := int(diff.Minutes())
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return printer.Plural("time_elapsed.minutes", minutes, minutes)
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case s < 86400:
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hours := int(diff.Hours())
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return printer.Plural("time_elapsed.hours", hours, hours)
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case d == 1:
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return printer.Printf("time_elapsed.yesterday")
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case d < 21:
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return printer.Plural("time_elapsed.days", d, d)
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case d < 31:
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weeks := int(math.Round(float64(d) / 7))
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return printer.Plural("time_elapsed.weeks", weeks, weeks)
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case d < 365:
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months := int(math.Round(float64(d) / 30))
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return printer.Plural("time_elapsed.months", months, months)
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default:
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years := int(math.Round(float64(d) / 365))
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return printer.Plural("time_elapsed.years", years, years)
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}
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}
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func formatFileSize(b int64) string {
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const unit = 1024
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if b < unit {
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return fmt.Sprintf("%d B", b)
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}
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div, exp := int64(unit), 0
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for n := b / unit; n >= unit; n /= unit {
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div *= unit
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exp++
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}
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return fmt.Sprintf("%.1f %ciB",
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float64(b)/float64(div), "KMGTPE"[exp])
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}
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