Tor check bug fixes; recognise december blocking

src/site/api/routes.js

@@ -154,6 +154,8 @@ module.exports = [
 							lang
 						})
 					}
+				} else if (error === constants.symbols.INSTAGRAM_BLOCK_TYPE_DECEMBER) {
+					return render(503, "pug/blocked_december.pug")
 				} else if (error === constants.symbols.RATE_LIMITED) {
 					return render(503, "pug/blocked_graphql.pug")
 				} else if (error === constants.symbols.extractor_results.AGE_RESTRICTED) {
@@ -219,6 +221,8 @@ module.exports = [
 						message: "This user doesn't exist.",
 						withInstancesLink: false
 					})
+				} else if (error === constants.symbols.INSTAGRAM_BLOCK_TYPE_DECEMBER) {
+					return render(502, "pug/fragments/timeline_loading_blocked_december.pug")
 				} else if (error === constants.symbols.INSTAGRAM_DEMANDS_LOGIN || error === constants.symbols.RATE_LIMITED) {
 					return render(503, "pug/fragments/timeline_loading_blocked.pug")
 				} else if (error === constants.symbols.QUOTA_REACHED) {

src/site/pug/blocked_december.pug

@@ -0,0 +1,15 @@
+include includes/error.pug
+
+doctype html
+html
+	head
+		title= `Blocked | Bibliogram`
+		include includes/head
+	body.error-page
+		+error(502, "Blocked by Instagram", true)
+			| Instagram is refusing to provide data to this server.
+			| This server will only be able to load the first page of timelines.
+			| This error is permanent.
+			| #[a(href="https://lists.sr.ht/~cadence/bibliogram-announce/%3C20201218014302.855fa8a816be2f19da2f56e3%40disroot.org%3E") See here for more information.]
+			|
+			|

src/site/pug/fragments/timeline_loading_blocked_december.pug

@@ -0,0 +1,8 @@
+.error-fragment
+	.message Timeline loading blocked
+	.explanation.
+		Instagram is refusing to provide data to this server.
+		This server will only be able to load the first page of timelines.
+		This error is permanent.
+		#[a(href="https://lists.sr.ht/~cadence/bibliogram-announce/%3C20201218014302.855fa8a816be2f19da2f56e3%40disroot.org%3E") See here for more information.]
+		Or, you could try #[a(href="https://git.sr.ht/~cadence/bibliogram-docs/tree/master/docs/Instances.md") browsing Bibliogram on another instance.]