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Add SafeHtmlAttr, SafeCSS template function

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This allows a template user to keep a safe HTML attribute or CSS string
as is in a template.

This is implementation of @anthonyfok great insight

Fix #784, #347
This commit is contained in:
Tatsushi Demachi
2015-01-20 08:55:16 +09:00
committed by Anthony Fok
parent 53b4ab4cf3
commit f5946ea3dd
2 changed files with 150 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

80
tpl/template.go
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@@ -910,6 +910,14 @@ func SafeHtml(text string) template.HTML {
return template.HTML(text)
}
func SafeHtmlAttr(text string) template.HTMLAttr {
return template.HTMLAttr(text)
}
func SafeCSS(text string) template.CSS {
return template.CSS(text)
}
func doArithmetic(a, b interface{}, op rune) (interface{}, error) {
av := reflect.ValueOf(a)
bv := reflect.ValueOf(b)
@@ -1230,41 +1238,43 @@ func (t *GoHtmlTemplate) LoadTemplates(absPath string) {
func init() {
funcMap = template.FuncMap{
"urlize": helpers.Urlize,
"sanitizeurl": helpers.SanitizeUrl,
"eq": Eq,
"ne": Ne,
"gt": Gt,
"ge": Ge,
"lt": Lt,
"le": Le,
"in": In,
"intersect": Intersect,
"isset": IsSet,
"echoParam": ReturnWhenSet,
"safeHtml": SafeHtml,
"markdownify": Markdownify,
"first": First,
"where": Where,
"delimit": Delimit,
"sort": Sort,
"highlight": Highlight,
"add": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '+') },
"sub": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '-') },
"div": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '/') },
"mod": Mod,
"mul": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '*') },
"modBool": ModBool,
"lower": func(a string) string { return strings.ToLower(a) },
"upper": func(a string) string { return strings.ToUpper(a) },
"title": func(a string) string { return strings.Title(a) },
"partial": Partial,
"ref": Ref,
"relref": RelRef,
"apply": Apply,
"chomp": Chomp,
"replace": Replace,
"trim": Trim,
"urlize": helpers.Urlize,
"sanitizeurl": helpers.SanitizeUrl,
"eq": Eq,
"ne": Ne,
"gt": Gt,
"ge": Ge,
"lt": Lt,
"le": Le,
"in": In,
"intersect": Intersect,
"isset": IsSet,
"echoParam": ReturnWhenSet,
"safeHtml": SafeHtml,
"safeHtmlAttr": SafeHtmlAttr,
"safeCSS": SafeCSS,
"markdownify": Markdownify,
"first": First,
"where": Where,
"delimit": Delimit,
"sort": Sort,
"highlight": Highlight,
"add": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '+') },
"sub": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '-') },
"div": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '/') },
"mod": Mod,
"mul": func(a, b interface{}) (interface{}, error) { return doArithmetic(a, b, '*') },
"modBool": ModBool,
"lower": func(a string) string { return strings.ToLower(a) },
"upper": func(a string) string { return strings.ToUpper(a) },
"title": func(a string) string { return strings.Title(a) },
"partial": Partial,
"ref": Ref,
"relref": RelRef,
"apply": Apply,
"chomp": Chomp,
"replace": Replace,
"trim": Trim,
}
chompRegexp = regexp.MustCompile("[\r\n]+$")