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Merge branch 'xss-paranoia' into 'master'

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Add more html escaping

See merge request idotj/mastodon-embed-feed-timeline!23
This commit is contained in:
i.j 2023-10-15 17:37:18 +00:00
commit 120fa95750
1 changed files with 20 additions and 18 deletions
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38
src/mastodon-timeline.js
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@ -155,9 +155,9 @@ MastodonApi.prototype.buildTimeline = async function () {
if (this.LINK_SEE_MORE) {
let linkSeeMorePath = "";
if (this.TIMELINE_TYPE === "profile") {
linkSeeMorePath = this.PROFILE_NAME;
linkSeeMorePath = encodeURIComponent(this.PROFILE_NAME);
} else if (this.TIMELINE_TYPE === "hashtag") {
linkSeeMorePath = "tags/" + this.HASHTAG_NAME;
linkSeeMorePath = "tags/" + encodeURIComponent(this.HASHTAG_NAME);
} else if (this.TIMELINE_TYPE === "local") {
linkSeeMorePath = "public/local";
}
@ -218,7 +218,7 @@ MastodonApi.prototype.buildTimeline = async function () {
e.target.parentNode.className !== "mt-toot-preview-image" &&
urlToot
) {
window.open(urlToot, "_blank");
window.open(urlToot, "_blank", "noopener");
}
};
@ -324,7 +324,7 @@ MastodonApi.prototype.getTimelineData = async function () {
reject(new Error("Something went wrong fetching data"));
this.mtBodyContainer.innerHTML =
'<div class="mt-error"><span class="mt-error-icon">❌</span><br/><strong>Sorry, request failed:</strong><br/><div class="mt-error-message">' +
error.message +
this.escapeHtml(error.message) +
"</div></div>";
this.mtBodyContainer.setAttribute("role", "none");
return { [key]: [] };
@ -375,14 +375,14 @@ MastodonApi.prototype.assambleToot = function (c, i) {
'<img src="' +
c.reblog.account.avatar +
'" alt="' +
this.replaceQuotes(c.reblog.account.username) +
this.escapeHtml(c.reblog.account.username) +
' avatar" loading="lazy" />' +
"</div>" +
'<div class="mt-toot-avatar-image-small">' +
'<img src="' +
c.account.avatar +
'" alt="' +
this.replaceQuotes(c.account.username) +
this.escapeHtml(c.account.username) +
' avatar" loading="lazy" />' +
"</div>" +
"</div>" +
@ -390,9 +390,9 @@ MastodonApi.prototype.assambleToot = function (c, i) {
// User name and url
userName = this.showEmojos(
c.reblog.account.display_name
this.escapeHtml(c.reblog.account.display_name
? c.reblog.account.display_name
: c.reblog.account.username,
: c.reblog.account.username),
this.FETCHED_DATA.emojos
);
user =
@ -422,7 +422,7 @@ MastodonApi.prototype.assambleToot = function (c, i) {
'<img src="' +
c.account.avatar +
'" alt="' +
c.account.username +
this.escapeHtml(c.account.username) +
' avatar" loading="lazy" />' +
"</div>" +
"</div>" +
@ -430,7 +430,7 @@ MastodonApi.prototype.assambleToot = function (c, i) {
// User name and url
userName = this.showEmojos(
c.account.display_name ? c.account.display_name : c.account.username,
this.escapeHtml(c.account.display_name ? c.account.display_name : c.account.username),
this.FETCHED_DATA.emojos
);
user =
@ -438,7 +438,7 @@ MastodonApi.prototype.assambleToot = function (c, i) {
'<a href="' +
c.account.url +
'" rel="nofollow noopener noreferrer" target="_blank">' +
userName +
this.escapeHtml(userName) +
'<span class="visually-hidden"> account</span>' +
"</a>" +
"</div>";
@ -720,7 +720,7 @@ MastodonApi.prototype.placeMedias = function (m, s) {
'<img src="' +
m.preview_url +
'" alt="' +
(m.description ? this.replaceQuotes(m.description) : "") +
(m.description ? this.escapeHtml(m.description) : "") +
'" loading="lazy" />' +
"</div>";
@ -743,14 +743,14 @@ MastodonApi.prototype.placePreviewLink = function (c) {
'"><img src="' +
c.image +
'" alt="' +
this.replaceQuotes(c.image_description) +
this.escapeHtml(c.image_description) +
'" loading="lazy" /></div>'
: '<div class="mt-toot-preview-noImage">📄</div>') +
"</div>" +
'<div class="mt-toot-preview-content">' +
(c.provider_name
? '<span class="mt-toot-preview-provider">' +
this.parseHTMLstring(c.provider_name) +
this.escapeHtml(this.parseHTMLstring(c.provider_name)) +
"</span>"
: "") +
'<span class="mt-toot-preview-title">' +
@ -758,7 +758,7 @@ MastodonApi.prototype.placePreviewLink = function (c) {
"</span>" +
(c.author_name
? '<span class="mt-toot-preview-author">' +
this.parseHTMLstring(c.author_name) +
this.escapeHtml(this.parseHTMLstring(c.author_name)) +
"</span>"
: "") +
"</div>" +
@ -812,12 +812,14 @@ MastodonApi.prototype.parseHTMLstring = function (s) {
};
/**
* Replace quotes
* Escape quotes and other special characters, to make them safe to add
* to HTML content and attributes as plain text
* @param {string} s String
* @returns {string} String
*/
MastodonApi.prototype.replaceQuotes = function (s) {
return s.replace('"', "'");
MastodonApi.prototype.escapeHtml = function (s) {
return (s ?? "").replace("&", "&amp;").replace("<", "&lt;")
.replace(">", "&gt;").replace('"', "&quot;");
};
/**