108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package templates
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import (
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"fmt"
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"html/template"
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"net/http"
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"strings"
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"time"
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"code.nonshy.com/nonshy/website/pkg/config"
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"code.nonshy.com/nonshy/website/pkg/markdown"
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"code.nonshy.com/nonshy/website/pkg/photo"
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"code.nonshy.com/nonshy/website/pkg/session"
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"code.nonshy.com/nonshy/website/pkg/utility"
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)
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// TemplateFuncs available to all pages.
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func TemplateFuncs(r *http.Request) template.FuncMap {
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return template.FuncMap{
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"InputCSRF": InputCSRF(r),
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"SincePrettyCoarse": SincePrettyCoarse(),
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"ComputeAge": utility.Age,
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"Split": strings.Split,
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"ToMarkdown": ToMarkdown,
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"PhotoURL": photo.URLPath,
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"Now": time.Now,
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"PrettyTitle": func() template.HTML {
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return template.HTML(fmt.Sprintf(
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`<strong style="color: #0077FF">non</strong>` +
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`<strong style="color: #FF77FF">shy</strong>`,
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))
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},
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"Pluralize64": func(count int64, labels ...string) string {
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if len(labels) < 2 {
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labels = []string{"", "s"}
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}
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if count == 1 {
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return labels[0]
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} else {
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return labels[1]
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}
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},
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"Pluralize": func(count int, labels ...string) string {
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if len(labels) < 2 {
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labels = []string{"", "s"}
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}
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if count == 1 {
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return labels[0]
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} else {
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return labels[1]
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}
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},
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"Substring": func(value string, n int) string {
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if n > len(value) {
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return value
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}
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return value[:n]
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},
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"TrimEllipses": func(value string, n int) string {
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if n > len(value) {
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return value
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}
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return value[:n] + "…"
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},
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"IterRange": func(start, n int) []int {
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var result = []int{}
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for i := start; i <= n; i++ {
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result = append(result, i)
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}
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return result
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},
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"SubtractInt": func(a, b int) int {
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return a - b
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},
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}
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}
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// InputCSRF returns the HTML snippet for a CSRF token hidden input field.
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func InputCSRF(r *http.Request) func() template.HTML {
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return func() template.HTML {
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ctx := r.Context()
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if token, ok := ctx.Value(session.CSRFKey).(string); ok {
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return template.HTML(fmt.Sprintf(
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`<input type="hidden" name="%s" value="%s">`,
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config.CSRFInputName,
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token,
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))
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} else {
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return template.HTML(`[CSRF middleware error]`)
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}
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}
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}
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// SincePrettyCoarse formats a time.Duration in plain English. Intended for "joined 2 months ago" type
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// strings - returns the coarsest level of granularity.
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func SincePrettyCoarse() func(time.Time) template.HTML {
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return func(since time.Time) template.HTML {
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return template.HTML(utility.FormatDurationCoarse(time.Since(since)))
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}
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}
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// ToMarkdown renders input text as Markdown.
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func ToMarkdown(input string) template.HTML {
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return template.HTML(markdown.Render(input))
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}
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