mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-27 17:46:31 +00:00
63 lines
2.7 KiB
Go
63 lines
2.7 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package text
|
|
|
|
import (
|
|
"github.com/microcosm-cc/bluemonday"
|
|
)
|
|
|
|
// '[A]llows a broad selection of HTML elements and attributes that are safe for user generated content.
|
|
// Note that this policy does not allow iframes, object, embed, styles, script, etc.
|
|
// An example usage scenario would be blog post bodies where a variety of formatting is expected along with the potential for TABLEs and IMGs.'
|
|
//
|
|
// Source: https://github.com/microcosm-cc/bluemonday#usage
|
|
var regular *bluemonday.Policy = bluemonday.UGCPolicy().
|
|
RequireNoReferrerOnLinks(true).
|
|
RequireNoFollowOnLinks(true).
|
|
RequireCrossOriginAnonymous(true).
|
|
AddTargetBlankToFullyQualifiedLinks(true)
|
|
|
|
// outgoing policy should be used on statuses we've already parsed and added our own elements etc to. It is less strict than regular.
|
|
var outgoing *bluemonday.Policy = regular.
|
|
AllowAttrs("class", "href", "rel").OnElements("a").
|
|
AllowAttrs("class").OnElements("span")
|
|
|
|
// '[C]an be thought of as equivalent to stripping all HTML elements and their attributes as it has nothing on its allowlist.
|
|
// An example usage scenario would be blog post titles where HTML tags are not expected at all
|
|
// and if they are then the elements and the content of the elements should be stripped. This is a very strict policy.'
|
|
//
|
|
// Source: https://github.com/microcosm-cc/bluemonday#usage
|
|
var strict *bluemonday.Policy = bluemonday.StrictPolicy()
|
|
|
|
// SanitizeHTML cleans up HTML in the given string, allowing through only safe HTML elements.
|
|
func SanitizeHTML(in string) string {
|
|
return regular.Sanitize(in)
|
|
}
|
|
|
|
// RemoveHTML removes all HTML from the given string.
|
|
func RemoveHTML(in string) string {
|
|
return strict.Sanitize(in)
|
|
}
|
|
|
|
// SanitizeOutgoing cleans up HTML in the given string, allowing through only safe elements and elements that were added during the parsing process.
|
|
// This should be used on text that we've already converted into HTML, just to catch any weirdness.
|
|
func SanitizeOutgoing(in string) string {
|
|
return outgoing.Sanitize(in)
|
|
}
|