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-rw-r--r--lib/json_ld/activitystreams.rb153
-rw-r--r--lib/json_ld/identity.rb86
-rw-r--r--lib/json_ld/security.rb50
-rw-r--r--lib/mastodon/migration_helpers.rb11
-rw-r--r--lib/mastodon/redis_config.rb27
-rw-r--r--lib/mastodon/snowflake.rb2
-rw-r--r--lib/tasks/mastodon.rake9
7 files changed, 41 insertions, 297 deletions
diff --git a/lib/json_ld/activitystreams.rb b/lib/json_ld/activitystreams.rb
deleted file mode 100644
index ce740f93b..000000000
--- a/lib/json_ld/activitystreams.rb
+++ /dev/null
@@ -1,153 +0,0 @@
-# -*- encoding: utf-8 -*-
-# frozen_string_literal: true
-# This file generated automatically from https://www.w3.org/ns/activitystreams
-require 'json/ld'
-class JSON::LD::Context
-  add_preloaded("https://www.w3.org/ns/activitystreams") do
-    new(vocab: "_:", processingMode: "json-ld-1.0", term_definitions: {
-      "Accept" => TermDefinition.new("Accept", id: "https://www.w3.org/ns/activitystreams#Accept", simple: true),
-      "Activity" => TermDefinition.new("Activity", id: "https://www.w3.org/ns/activitystreams#Activity", simple: true),
-      "Add" => TermDefinition.new("Add", id: "https://www.w3.org/ns/activitystreams#Add", simple: true),
-      "Announce" => TermDefinition.new("Announce", id: "https://www.w3.org/ns/activitystreams#Announce", simple: true),
-      "Application" => TermDefinition.new("Application", id: "https://www.w3.org/ns/activitystreams#Application", simple: true),
-      "Arrive" => TermDefinition.new("Arrive", id: "https://www.w3.org/ns/activitystreams#Arrive", simple: true),
-      "Article" => TermDefinition.new("Article", id: "https://www.w3.org/ns/activitystreams#Article", simple: true),
-      "Audio" => TermDefinition.new("Audio", id: "https://www.w3.org/ns/activitystreams#Audio", simple: true),
-      "Block" => TermDefinition.new("Block", id: "https://www.w3.org/ns/activitystreams#Block", simple: true),
-      "Collection" => TermDefinition.new("Collection", id: "https://www.w3.org/ns/activitystreams#Collection", simple: true),
-      "CollectionPage" => TermDefinition.new("CollectionPage", id: "https://www.w3.org/ns/activitystreams#CollectionPage", simple: true),
-      "Create" => TermDefinition.new("Create", id: "https://www.w3.org/ns/activitystreams#Create", simple: true),
-      "Delete" => TermDefinition.new("Delete", id: "https://www.w3.org/ns/activitystreams#Delete", simple: true),
-      "Dislike" => TermDefinition.new("Dislike", id: "https://www.w3.org/ns/activitystreams#Dislike", simple: true),
-      "Document" => TermDefinition.new("Document", id: "https://www.w3.org/ns/activitystreams#Document", simple: true),
-      "Event" => TermDefinition.new("Event", id: "https://www.w3.org/ns/activitystreams#Event", simple: true),
-      "Flag" => TermDefinition.new("Flag", id: "https://www.w3.org/ns/activitystreams#Flag", simple: true),
-      "Follow" => TermDefinition.new("Follow", id: "https://www.w3.org/ns/activitystreams#Follow", simple: true),
-      "Group" => TermDefinition.new("Group", id: "https://www.w3.org/ns/activitystreams#Group", simple: true),
-      "Ignore" => TermDefinition.new("Ignore", id: "https://www.w3.org/ns/activitystreams#Ignore", simple: true),
-      "Image" => TermDefinition.new("Image", id: "https://www.w3.org/ns/activitystreams#Image", simple: true),
-      "IntransitiveActivity" => TermDefinition.new("IntransitiveActivity", id: "https://www.w3.org/ns/activitystreams#IntransitiveActivity", simple: true),
-      "Invite" => TermDefinition.new("Invite", id: "https://www.w3.org/ns/activitystreams#Invite", simple: true),
-      "IsContact" => TermDefinition.new("IsContact", id: "https://www.w3.org/ns/activitystreams#IsContact", simple: true),
-      "IsFollowedBy" => TermDefinition.new("IsFollowedBy", id: "https://www.w3.org/ns/activitystreams#IsFollowedBy", simple: true),
-      "IsFollowing" => TermDefinition.new("IsFollowing", id: "https://www.w3.org/ns/activitystreams#IsFollowing", simple: true),
-      "IsMember" => TermDefinition.new("IsMember", id: "https://www.w3.org/ns/activitystreams#IsMember", simple: true),
-      "Join" => TermDefinition.new("Join", id: "https://www.w3.org/ns/activitystreams#Join", simple: true),
-      "Leave" => TermDefinition.new("Leave", id: "https://www.w3.org/ns/activitystreams#Leave", simple: true),
-      "Like" => TermDefinition.new("Like", id: "https://www.w3.org/ns/activitystreams#Like", simple: true),
-      "Link" => TermDefinition.new("Link", id: "https://www.w3.org/ns/activitystreams#Link", simple: true),
-      "Listen" => TermDefinition.new("Listen", id: "https://www.w3.org/ns/activitystreams#Listen", simple: true),
-      "Mention" => TermDefinition.new("Mention", id: "https://www.w3.org/ns/activitystreams#Mention", simple: true),
-      "Move" => TermDefinition.new("Move", id: "https://www.w3.org/ns/activitystreams#Move", simple: true),
-      "Note" => TermDefinition.new("Note", id: "https://www.w3.org/ns/activitystreams#Note", simple: true),
-      "Object" => TermDefinition.new("Object", id: "https://www.w3.org/ns/activitystreams#Object", simple: true),
-      "Offer" => TermDefinition.new("Offer", id: "https://www.w3.org/ns/activitystreams#Offer", simple: true),
-      "OrderedCollection" => TermDefinition.new("OrderedCollection", id: "https://www.w3.org/ns/activitystreams#OrderedCollection", simple: true),
-      "OrderedCollectionPage" => TermDefinition.new("OrderedCollectionPage", id: "https://www.w3.org/ns/activitystreams#OrderedCollectionPage", simple: true),
-      "Organization" => TermDefinition.new("Organization", id: "https://www.w3.org/ns/activitystreams#Organization", simple: true),
-      "Page" => TermDefinition.new("Page", id: "https://www.w3.org/ns/activitystreams#Page", simple: true),
-      "Person" => TermDefinition.new("Person", id: "https://www.w3.org/ns/activitystreams#Person", simple: true),
-      "Place" => TermDefinition.new("Place", id: "https://www.w3.org/ns/activitystreams#Place", simple: true),
-      "Profile" => TermDefinition.new("Profile", id: "https://www.w3.org/ns/activitystreams#Profile", simple: true),
-      "Question" => TermDefinition.new("Question", id: "https://www.w3.org/ns/activitystreams#Question", simple: true),
-      "Read" => TermDefinition.new("Read", id: "https://www.w3.org/ns/activitystreams#Read", simple: true),
-      "Reject" => TermDefinition.new("Reject", id: "https://www.w3.org/ns/activitystreams#Reject", simple: true),
-      "Relationship" => TermDefinition.new("Relationship", id: "https://www.w3.org/ns/activitystreams#Relationship", simple: true),
-      "Remove" => TermDefinition.new("Remove", id: "https://www.w3.org/ns/activitystreams#Remove", simple: true),
-      "Service" => TermDefinition.new("Service", id: "https://www.w3.org/ns/activitystreams#Service", simple: true),
-      "TentativeAccept" => TermDefinition.new("TentativeAccept", id: "https://www.w3.org/ns/activitystreams#TentativeAccept", simple: true),
-      "TentativeReject" => TermDefinition.new("TentativeReject", id: "https://www.w3.org/ns/activitystreams#TentativeReject", simple: true),
-      "Tombstone" => TermDefinition.new("Tombstone", id: "https://www.w3.org/ns/activitystreams#Tombstone", simple: true),
-      "Travel" => TermDefinition.new("Travel", id: "https://www.w3.org/ns/activitystreams#Travel", simple: true),
-      "Undo" => TermDefinition.new("Undo", id: "https://www.w3.org/ns/activitystreams#Undo", simple: true),
-      "Update" => TermDefinition.new("Update", id: "https://www.w3.org/ns/activitystreams#Update", simple: true),
-      "Video" => TermDefinition.new("Video", id: "https://www.w3.org/ns/activitystreams#Video", simple: true),
-      "View" => TermDefinition.new("View", id: "https://www.w3.org/ns/activitystreams#View", simple: true),
-      "accuracy" => TermDefinition.new("accuracy", id: "https://www.w3.org/ns/activitystreams#accuracy", type_mapping: "http://www.w3.org/2001/XMLSchema#float"),
-      "actor" => TermDefinition.new("actor", id: "https://www.w3.org/ns/activitystreams#actor", type_mapping: "@id"),
-      "altitude" => TermDefinition.new("altitude", id: "https://www.w3.org/ns/activitystreams#altitude", type_mapping: "http://www.w3.org/2001/XMLSchema#float"),
-      "anyOf" => TermDefinition.new("anyOf", id: "https://www.w3.org/ns/activitystreams#anyOf", type_mapping: "@id"),
-      "as" => TermDefinition.new("as", id: "https://www.w3.org/ns/activitystreams#", simple: true, prefix: true),
-      "attachment" => TermDefinition.new("attachment", id: "https://www.w3.org/ns/activitystreams#attachment", type_mapping: "@id"),
-      "attributedTo" => TermDefinition.new("attributedTo", id: "https://www.w3.org/ns/activitystreams#attributedTo", type_mapping: "@id"),
-      "audience" => TermDefinition.new("audience", id: "https://www.w3.org/ns/activitystreams#audience", type_mapping: "@id"),
-      "bcc" => TermDefinition.new("bcc", id: "https://www.w3.org/ns/activitystreams#bcc", type_mapping: "@id"),
-      "bto" => TermDefinition.new("bto", id: "https://www.w3.org/ns/activitystreams#bto", type_mapping: "@id"),
-      "cc" => TermDefinition.new("cc", id: "https://www.w3.org/ns/activitystreams#cc", type_mapping: "@id"),
-      "closed" => TermDefinition.new("closed", id: "https://www.w3.org/ns/activitystreams#closed", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "content" => TermDefinition.new("content", id: "https://www.w3.org/ns/activitystreams#content", simple: true),
-      "contentMap" => TermDefinition.new("contentMap", id: "https://www.w3.org/ns/activitystreams#content", container_mapping: "@language"),
-      "context" => TermDefinition.new("context", id: "https://www.w3.org/ns/activitystreams#context", type_mapping: "@id"),
-      "current" => TermDefinition.new("current", id: "https://www.w3.org/ns/activitystreams#current", type_mapping: "@id"),
-      "deleted" => TermDefinition.new("deleted", id: "https://www.w3.org/ns/activitystreams#deleted", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "describes" => TermDefinition.new("describes", id: "https://www.w3.org/ns/activitystreams#describes", type_mapping: "@id"),
-      "duration" => TermDefinition.new("duration", id: "https://www.w3.org/ns/activitystreams#duration", type_mapping: "http://www.w3.org/2001/XMLSchema#duration"),
-      "endTime" => TermDefinition.new("endTime", id: "https://www.w3.org/ns/activitystreams#endTime", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "endpoints" => TermDefinition.new("endpoints", id: "https://www.w3.org/ns/activitystreams#endpoints", type_mapping: "@id"),
-      "first" => TermDefinition.new("first", id: "https://www.w3.org/ns/activitystreams#first", type_mapping: "@id"),
-      "followers" => TermDefinition.new("followers", id: "https://www.w3.org/ns/activitystreams#followers", type_mapping: "@id"),
-      "following" => TermDefinition.new("following", id: "https://www.w3.org/ns/activitystreams#following", type_mapping: "@id"),
-      "formerType" => TermDefinition.new("formerType", id: "https://www.w3.org/ns/activitystreams#formerType", type_mapping: "@id"),
-      "generator" => TermDefinition.new("generator", id: "https://www.w3.org/ns/activitystreams#generator", type_mapping: "@id"),
-      "height" => TermDefinition.new("height", id: "https://www.w3.org/ns/activitystreams#height", type_mapping: "http://www.w3.org/2001/XMLSchema#nonNegativeInteger"),
-      "href" => TermDefinition.new("href", id: "https://www.w3.org/ns/activitystreams#href", type_mapping: "@id"),
-      "hreflang" => TermDefinition.new("hreflang", id: "https://www.w3.org/ns/activitystreams#hreflang", simple: true),
-      "icon" => TermDefinition.new("icon", id: "https://www.w3.org/ns/activitystreams#icon", type_mapping: "@id"),
-      "id" => TermDefinition.new("id", id: "@id", simple: true),
-      "image" => TermDefinition.new("image", id: "https://www.w3.org/ns/activitystreams#image", type_mapping: "@id"),
-      "inReplyTo" => TermDefinition.new("inReplyTo", id: "https://www.w3.org/ns/activitystreams#inReplyTo", type_mapping: "@id"),
-      "inbox" => TermDefinition.new("inbox", id: "http://www.w3.org/ns/ldp#inbox", type_mapping: "@id"),
-      "instrument" => TermDefinition.new("instrument", id: "https://www.w3.org/ns/activitystreams#instrument", type_mapping: "@id"),
-      "items" => TermDefinition.new("items", id: "https://www.w3.org/ns/activitystreams#items", type_mapping: "@id"),
-      "last" => TermDefinition.new("last", id: "https://www.w3.org/ns/activitystreams#last", type_mapping: "@id"),
-      "latitude" => TermDefinition.new("latitude", id: "https://www.w3.org/ns/activitystreams#latitude", type_mapping: "http://www.w3.org/2001/XMLSchema#float"),
-      "ldp" => TermDefinition.new("ldp", id: "http://www.w3.org/ns/ldp#", simple: true, prefix: true),
-      "liked" => TermDefinition.new("liked", id: "https://www.w3.org/ns/activitystreams#liked", type_mapping: "@id"),
-      "location" => TermDefinition.new("location", id: "https://www.w3.org/ns/activitystreams#location", type_mapping: "@id"),
-      "longitude" => TermDefinition.new("longitude", id: "https://www.w3.org/ns/activitystreams#longitude", type_mapping: "http://www.w3.org/2001/XMLSchema#float"),
-      "mediaType" => TermDefinition.new("mediaType", id: "https://www.w3.org/ns/activitystreams#mediaType", simple: true),
-      "name" => TermDefinition.new("name", id: "https://www.w3.org/ns/activitystreams#name", simple: true),
-      "nameMap" => TermDefinition.new("nameMap", id: "https://www.w3.org/ns/activitystreams#name", container_mapping: "@language"),
-      "next" => TermDefinition.new("next", id: "https://www.w3.org/ns/activitystreams#next", type_mapping: "@id"),
-      "oauthAuthorizationEndpoint" => TermDefinition.new("oauthAuthorizationEndpoint", id: "https://www.w3.org/ns/activitystreams#oauthAuthorizationEndpoint", type_mapping: "@id"),
-      "oauthTokenEndpoint" => TermDefinition.new("oauthTokenEndpoint", id: "https://www.w3.org/ns/activitystreams#oauthTokenEndpoint", type_mapping: "@id"),
-      "object" => TermDefinition.new("object", id: "https://www.w3.org/ns/activitystreams#object", type_mapping: "@id"),
-      "oneOf" => TermDefinition.new("oneOf", id: "https://www.w3.org/ns/activitystreams#oneOf", type_mapping: "@id"),
-      "orderedItems" => TermDefinition.new("orderedItems", id: "https://www.w3.org/ns/activitystreams#items", type_mapping: "@id", container_mapping: "@list"),
-      "origin" => TermDefinition.new("origin", id: "https://www.w3.org/ns/activitystreams#origin", type_mapping: "@id"),
-      "outbox" => TermDefinition.new("outbox", id: "https://www.w3.org/ns/activitystreams#outbox", type_mapping: "@id"),
-      "partOf" => TermDefinition.new("partOf", id: "https://www.w3.org/ns/activitystreams#partOf", type_mapping: "@id"),
-      "preferredUsername" => TermDefinition.new("preferredUsername", id: "https://www.w3.org/ns/activitystreams#preferredUsername", simple: true),
-      "prev" => TermDefinition.new("prev", id: "https://www.w3.org/ns/activitystreams#prev", type_mapping: "@id"),
-      "preview" => TermDefinition.new("preview", id: "https://www.w3.org/ns/activitystreams#preview", type_mapping: "@id"),
-      "provideClientKey" => TermDefinition.new("provideClientKey", id: "https://www.w3.org/ns/activitystreams#provideClientKey", type_mapping: "@id"),
-      "proxyUrl" => TermDefinition.new("proxyUrl", id: "https://www.w3.org/ns/activitystreams#proxyUrl", type_mapping: "@id"),
-      "published" => TermDefinition.new("published", id: "https://www.w3.org/ns/activitystreams#published", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "radius" => TermDefinition.new("radius", id: "https://www.w3.org/ns/activitystreams#radius", type_mapping: "http://www.w3.org/2001/XMLSchema#float"),
-      "rel" => TermDefinition.new("rel", id: "https://www.w3.org/ns/activitystreams#rel", simple: true),
-      "relationship" => TermDefinition.new("relationship", id: "https://www.w3.org/ns/activitystreams#relationship", type_mapping: "@id"),
-      "replies" => TermDefinition.new("replies", id: "https://www.w3.org/ns/activitystreams#replies", type_mapping: "@id"),
-      "result" => TermDefinition.new("result", id: "https://www.w3.org/ns/activitystreams#result", type_mapping: "@id"),
-      "sharedInbox" => TermDefinition.new("sharedInbox", id: "https://www.w3.org/ns/activitystreams#sharedInbox", type_mapping: "@id"),
-      "signClientKey" => TermDefinition.new("signClientKey", id: "https://www.w3.org/ns/activitystreams#signClientKey", type_mapping: "@id"),
-      "source" => TermDefinition.new("source", id: "https://www.w3.org/ns/activitystreams#source", simple: true),
-      "startIndex" => TermDefinition.new("startIndex", id: "https://www.w3.org/ns/activitystreams#startIndex", type_mapping: "http://www.w3.org/2001/XMLSchema#nonNegativeInteger"),
-      "startTime" => TermDefinition.new("startTime", id: "https://www.w3.org/ns/activitystreams#startTime", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "streams" => TermDefinition.new("streams", id: "https://www.w3.org/ns/activitystreams#streams", type_mapping: "@id"),
-      "subject" => TermDefinition.new("subject", id: "https://www.w3.org/ns/activitystreams#subject", type_mapping: "@id"),
-      "summary" => TermDefinition.new("summary", id: "https://www.w3.org/ns/activitystreams#summary", simple: true),
-      "summaryMap" => TermDefinition.new("summaryMap", id: "https://www.w3.org/ns/activitystreams#summary", container_mapping: "@language"),
-      "tag" => TermDefinition.new("tag", id: "https://www.w3.org/ns/activitystreams#tag", type_mapping: "@id"),
-      "target" => TermDefinition.new("target", id: "https://www.w3.org/ns/activitystreams#target", type_mapping: "@id"),
-      "to" => TermDefinition.new("to", id: "https://www.w3.org/ns/activitystreams#to", type_mapping: "@id"),
-      "totalItems" => TermDefinition.new("totalItems", id: "https://www.w3.org/ns/activitystreams#totalItems", type_mapping: "http://www.w3.org/2001/XMLSchema#nonNegativeInteger"),
-      "type" => TermDefinition.new("type", id: "@type", simple: true),
-      "units" => TermDefinition.new("units", id: "https://www.w3.org/ns/activitystreams#units", simple: true),
-      "updated" => TermDefinition.new("updated", id: "https://www.w3.org/ns/activitystreams#updated", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "uploadMedia" => TermDefinition.new("uploadMedia", id: "https://www.w3.org/ns/activitystreams#uploadMedia", type_mapping: "@id"),
-      "url" => TermDefinition.new("url", id: "https://www.w3.org/ns/activitystreams#url", type_mapping: "@id"),
-      "width" => TermDefinition.new("width", id: "https://www.w3.org/ns/activitystreams#width", type_mapping: "http://www.w3.org/2001/XMLSchema#nonNegativeInteger"),
-      "xsd" => TermDefinition.new("xsd", id: "http://www.w3.org/2001/XMLSchema#", simple: true, prefix: true)
-    })
-  end
-end
diff --git a/lib/json_ld/identity.rb b/lib/json_ld/identity.rb
deleted file mode 100644
index cfe50b956..000000000
--- a/lib/json_ld/identity.rb
+++ /dev/null
@@ -1,86 +0,0 @@
-# -*- encoding: utf-8 -*-
-# frozen_string_literal: true
-# This file generated automatically from https://w3id.org/identity/v1
-require 'json/ld'
-class JSON::LD::Context
-  add_preloaded("https://w3id.org/identity/v1") do
-    new(processingMode: "json-ld-1.0", term_definitions: {
-      "Credential" => TermDefinition.new("Credential", id: "https://w3id.org/credentials#Credential", simple: true),
-      "CryptographicKey" => TermDefinition.new("CryptographicKey", id: "https://w3id.org/security#Key", simple: true),
-      "CryptographicKeyCredential" => TermDefinition.new("CryptographicKeyCredential", id: "https://w3id.org/credentials#CryptographicKeyCredential", simple: true),
-      "EncryptedMessage" => TermDefinition.new("EncryptedMessage", id: "https://w3id.org/security#EncryptedMessage", simple: true),
-      "GraphSignature2012" => TermDefinition.new("GraphSignature2012", id: "https://w3id.org/security#GraphSignature2012", simple: true),
-      "Group" => TermDefinition.new("Group", id: "https://www.w3.org/ns/activitystreams#Group", simple: true),
-      "Identity" => TermDefinition.new("Identity", id: "https://w3id.org/identity#Identity", simple: true),
-      "LinkedDataSignature2015" => TermDefinition.new("LinkedDataSignature2015", id: "https://w3id.org/security#LinkedDataSignature2015", simple: true),
-      "Organization" => TermDefinition.new("Organization", id: "http://schema.org/Organization", simple: true),
-      "Person" => TermDefinition.new("Person", id: "http://schema.org/Person", simple: true),
-      "PostalAddress" => TermDefinition.new("PostalAddress", id: "http://schema.org/PostalAddress", simple: true),
-      "about" => TermDefinition.new("about", id: "http://schema.org/about", type_mapping: "@id"),
-      "accessControl" => TermDefinition.new("accessControl", id: "https://w3id.org/permissions#accessControl", type_mapping: "@id"),
-      "address" => TermDefinition.new("address", id: "http://schema.org/address", type_mapping: "@id"),
-      "addressCountry" => TermDefinition.new("addressCountry", id: "http://schema.org/addressCountry", simple: true),
-      "addressLocality" => TermDefinition.new("addressLocality", id: "http://schema.org/addressLocality", simple: true),
-      "addressRegion" => TermDefinition.new("addressRegion", id: "http://schema.org/addressRegion", simple: true),
-      "cipherAlgorithm" => TermDefinition.new("cipherAlgorithm", id: "https://w3id.org/security#cipherAlgorithm", simple: true),
-      "cipherData" => TermDefinition.new("cipherData", id: "https://w3id.org/security#cipherData", simple: true),
-      "cipherKey" => TermDefinition.new("cipherKey", id: "https://w3id.org/security#cipherKey", simple: true),
-      "claim" => TermDefinition.new("claim", id: "https://w3id.org/credentials#claim", type_mapping: "@id"),
-      "comment" => TermDefinition.new("comment", id: "http://www.w3.org/2000/01/rdf-schema#comment", simple: true),
-      "created" => TermDefinition.new("created", id: "http://purl.org/dc/terms/created", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "creator" => TermDefinition.new("creator", id: "http://purl.org/dc/terms/creator", type_mapping: "@id"),
-      "cred" => TermDefinition.new("cred", id: "https://w3id.org/credentials#", simple: true, prefix: true),
-      "credential" => TermDefinition.new("credential", id: "https://w3id.org/credentials#credential", type_mapping: "@id"),
-      "dc" => TermDefinition.new("dc", id: "http://purl.org/dc/terms/", simple: true, prefix: true),
-      "description" => TermDefinition.new("description", id: "http://schema.org/description", simple: true),
-      "digestAlgorithm" => TermDefinition.new("digestAlgorithm", id: "https://w3id.org/security#digestAlgorithm", simple: true),
-      "digestValue" => TermDefinition.new("digestValue", id: "https://w3id.org/security#digestValue", simple: true),
-      "domain" => TermDefinition.new("domain", id: "https://w3id.org/security#domain", simple: true),
-      "email" => TermDefinition.new("email", id: "http://schema.org/email", simple: true),
-      "expires" => TermDefinition.new("expires", id: "https://w3id.org/security#expiration", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "familyName" => TermDefinition.new("familyName", id: "http://schema.org/familyName", simple: true),
-      "givenName" => TermDefinition.new("givenName", id: "http://schema.org/givenName", simple: true),
-      "id" => TermDefinition.new("id", id: "@id", simple: true),
-      "identity" => TermDefinition.new("identity", id: "https://w3id.org/identity#", simple: true, prefix: true),
-      "identityService" => TermDefinition.new("identityService", id: "https://w3id.org/identity#identityService", type_mapping: "@id"),
-      "idp" => TermDefinition.new("idp", id: "https://w3id.org/identity#idp", type_mapping: "@id"),
-      "image" => TermDefinition.new("image", id: "http://schema.org/image", type_mapping: "@id"),
-      "initializationVector" => TermDefinition.new("initializationVector", id: "https://w3id.org/security#initializationVector", simple: true),
-      "issued" => TermDefinition.new("issued", id: "https://w3id.org/credentials#issued", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "issuer" => TermDefinition.new("issuer", id: "https://w3id.org/credentials#issuer", type_mapping: "@id"),
-      "label" => TermDefinition.new("label", id: "http://www.w3.org/2000/01/rdf-schema#label", simple: true),
-      "member" => TermDefinition.new("member", id: "http://schema.org/member", type_mapping: "@id"),
-      "memberOf" => TermDefinition.new("memberOf", id: "http://schema.org/memberOf", type_mapping: "@id"),
-      "name" => TermDefinition.new("name", id: "http://schema.org/name", simple: true),
-      "nonce" => TermDefinition.new("nonce", id: "https://w3id.org/security#nonce", simple: true),
-      "normalizationAlgorithm" => TermDefinition.new("normalizationAlgorithm", id: "https://w3id.org/security#normalizationAlgorithm", simple: true),
-      "owner" => TermDefinition.new("owner", id: "https://w3id.org/security#owner", type_mapping: "@id"),
-      "password" => TermDefinition.new("password", id: "https://w3id.org/security#password", simple: true),
-      "paymentProcessor" => TermDefinition.new("paymentProcessor", id: "https://w3id.org/payswarm#processor", simple: true),
-      "perm" => TermDefinition.new("perm", id: "https://w3id.org/permissions#", simple: true, prefix: true),
-      "postalCode" => TermDefinition.new("postalCode", id: "http://schema.org/postalCode", simple: true),
-      "preferences" => TermDefinition.new("preferences", id: "https://w3id.org/payswarm#preferences", type_mapping: "@vocab"),
-      "privateKey" => TermDefinition.new("privateKey", id: "https://w3id.org/security#privateKey", type_mapping: "@id"),
-      "privateKeyPem" => TermDefinition.new("privateKeyPem", id: "https://w3id.org/security#privateKeyPem", simple: true),
-      "ps" => TermDefinition.new("ps", id: "https://w3id.org/payswarm#", simple: true, prefix: true),
-      "publicKey" => TermDefinition.new("publicKey", id: "https://w3id.org/security#publicKey", type_mapping: "@id"),
-      "publicKeyPem" => TermDefinition.new("publicKeyPem", id: "https://w3id.org/security#publicKeyPem", simple: true),
-      "publicKeyService" => TermDefinition.new("publicKeyService", id: "https://w3id.org/security#publicKeyService", type_mapping: "@id"),
-      "rdf" => TermDefinition.new("rdf", id: "http://www.w3.org/1999/02/22-rdf-syntax-ns#", simple: true, prefix: true),
-      "rdfs" => TermDefinition.new("rdfs", id: "http://www.w3.org/2000/01/rdf-schema#", simple: true, prefix: true),
-      "recipient" => TermDefinition.new("recipient", id: "https://w3id.org/credentials#recipient", type_mapping: "@id"),
-      "revoked" => TermDefinition.new("revoked", id: "https://w3id.org/security#revoked", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "schema" => TermDefinition.new("schema", id: "http://schema.org/", simple: true, prefix: true),
-      "sec" => TermDefinition.new("sec", id: "https://w3id.org/security#", simple: true, prefix: true),
-      "signature" => TermDefinition.new("signature", id: "https://w3id.org/security#signature", simple: true),
-      "signatureAlgorithm" => TermDefinition.new("signatureAlgorithm", id: "https://w3id.org/security#signatureAlgorithm", simple: true),
-      "signatureValue" => TermDefinition.new("signatureValue", id: "https://w3id.org/security#signatureValue", simple: true),
-      "streetAddress" => TermDefinition.new("streetAddress", id: "http://schema.org/streetAddress", simple: true),
-      "title" => TermDefinition.new("title", id: "http://purl.org/dc/terms/title", simple: true),
-      "type" => TermDefinition.new("type", id: "@type", simple: true),
-      "url" => TermDefinition.new("url", id: "http://schema.org/url", type_mapping: "@id"),
-      "writePermission" => TermDefinition.new("writePermission", id: "https://w3id.org/permissions#writePermission", type_mapping: "@id"),
-      "xsd" => TermDefinition.new("xsd", id: "http://www.w3.org/2001/XMLSchema#", simple: true, prefix: true)
-    })
-  end
-end
diff --git a/lib/json_ld/security.rb b/lib/json_ld/security.rb
deleted file mode 100644
index 1230206f0..000000000
--- a/lib/json_ld/security.rb
+++ /dev/null
@@ -1,50 +0,0 @@
-# -*- encoding: utf-8 -*-
-# frozen_string_literal: true
-# This file generated automatically from https://w3id.org/security/v1
-require 'json/ld'
-class JSON::LD::Context
-  add_preloaded("https://w3id.org/security/v1") do
-    new(processingMode: "json-ld-1.0", term_definitions: {
-      "CryptographicKey" => TermDefinition.new("CryptographicKey", id: "https://w3id.org/security#Key", simple: true),
-      "EcdsaKoblitzSignature2016" => TermDefinition.new("EcdsaKoblitzSignature2016", id: "https://w3id.org/security#EcdsaKoblitzSignature2016", simple: true),
-      "EncryptedMessage" => TermDefinition.new("EncryptedMessage", id: "https://w3id.org/security#EncryptedMessage", simple: true),
-      "GraphSignature2012" => TermDefinition.new("GraphSignature2012", id: "https://w3id.org/security#GraphSignature2012", simple: true),
-      "LinkedDataSignature2015" => TermDefinition.new("LinkedDataSignature2015", id: "https://w3id.org/security#LinkedDataSignature2015", simple: true),
-      "LinkedDataSignature2016" => TermDefinition.new("LinkedDataSignature2016", id: "https://w3id.org/security#LinkedDataSignature2016", simple: true),
-      "authenticationTag" => TermDefinition.new("authenticationTag", id: "https://w3id.org/security#authenticationTag", simple: true),
-      "canonicalizationAlgorithm" => TermDefinition.new("canonicalizationAlgorithm", id: "https://w3id.org/security#canonicalizationAlgorithm", simple: true),
-      "cipherAlgorithm" => TermDefinition.new("cipherAlgorithm", id: "https://w3id.org/security#cipherAlgorithm", simple: true),
-      "cipherData" => TermDefinition.new("cipherData", id: "https://w3id.org/security#cipherData", simple: true),
-      "cipherKey" => TermDefinition.new("cipherKey", id: "https://w3id.org/security#cipherKey", simple: true),
-      "created" => TermDefinition.new("created", id: "http://purl.org/dc/terms/created", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "creator" => TermDefinition.new("creator", id: "http://purl.org/dc/terms/creator", type_mapping: "@id"),
-      "dc" => TermDefinition.new("dc", id: "http://purl.org/dc/terms/", simple: true, prefix: true),
-      "digestAlgorithm" => TermDefinition.new("digestAlgorithm", id: "https://w3id.org/security#digestAlgorithm", simple: true),
-      "digestValue" => TermDefinition.new("digestValue", id: "https://w3id.org/security#digestValue", simple: true),
-      "domain" => TermDefinition.new("domain", id: "https://w3id.org/security#domain", simple: true),
-      "encryptionKey" => TermDefinition.new("encryptionKey", id: "https://w3id.org/security#encryptionKey", simple: true),
-      "expiration" => TermDefinition.new("expiration", id: "https://w3id.org/security#expiration", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "expires" => TermDefinition.new("expires", id: "https://w3id.org/security#expiration", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "id" => TermDefinition.new("id", id: "@id", simple: true),
-      "initializationVector" => TermDefinition.new("initializationVector", id: "https://w3id.org/security#initializationVector", simple: true),
-      "iterationCount" => TermDefinition.new("iterationCount", id: "https://w3id.org/security#iterationCount", simple: true),
-      "nonce" => TermDefinition.new("nonce", id: "https://w3id.org/security#nonce", simple: true),
-      "normalizationAlgorithm" => TermDefinition.new("normalizationAlgorithm", id: "https://w3id.org/security#normalizationAlgorithm", simple: true),
-      "owner" => TermDefinition.new("owner", id: "https://w3id.org/security#owner", type_mapping: "@id"),
-      "password" => TermDefinition.new("password", id: "https://w3id.org/security#password", simple: true),
-      "privateKey" => TermDefinition.new("privateKey", id: "https://w3id.org/security#privateKey", type_mapping: "@id"),
-      "privateKeyPem" => TermDefinition.new("privateKeyPem", id: "https://w3id.org/security#privateKeyPem", simple: true),
-      "publicKey" => TermDefinition.new("publicKey", id: "https://w3id.org/security#publicKey", type_mapping: "@id"),
-      "publicKeyPem" => TermDefinition.new("publicKeyPem", id: "https://w3id.org/security#publicKeyPem", simple: true),
-      "publicKeyService" => TermDefinition.new("publicKeyService", id: "https://w3id.org/security#publicKeyService", type_mapping: "@id"),
-      "revoked" => TermDefinition.new("revoked", id: "https://w3id.org/security#revoked", type_mapping: "http://www.w3.org/2001/XMLSchema#dateTime"),
-      "salt" => TermDefinition.new("salt", id: "https://w3id.org/security#salt", simple: true),
-      "sec" => TermDefinition.new("sec", id: "https://w3id.org/security#", simple: true, prefix: true),
-      "signature" => TermDefinition.new("signature", id: "https://w3id.org/security#signature", simple: true),
-      "signatureAlgorithm" => TermDefinition.new("signatureAlgorithm", id: "https://w3id.org/security#signingAlgorithm", simple: true),
-      "signatureValue" => TermDefinition.new("signatureValue", id: "https://w3id.org/security#signatureValue", simple: true),
-      "type" => TermDefinition.new("type", id: "@type", simple: true),
-      "xsd" => TermDefinition.new("xsd", id: "http://www.w3.org/2001/XMLSchema#", simple: true, prefix: true)
-    })
-  end
-end
diff --git a/lib/mastodon/migration_helpers.rb b/lib/mastodon/migration_helpers.rb
index 6f6f99f63..e154b5a2c 100644
--- a/lib/mastodon/migration_helpers.rb
+++ b/lib/mastodon/migration_helpers.rb
@@ -985,6 +985,17 @@ into similar problems in the future (e.g. when new tables are created).
         BackgroundMigrationWorker.perform_in(delay_interval * index, job_class_name, [start_id, end_id])
       end
     end
+
+    private
+
+    # https://github.com/rails/rails/blob/v5.2.0/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb#L678-L684
+    def extract_foreign_key_action(specifier)
+      case specifier
+      when 'c'; :cascade
+      when 'n'; :nullify
+      when 'r'; :restrict
+      end
+    end
   end
 end
 
diff --git a/lib/mastodon/redis_config.rb b/lib/mastodon/redis_config.rb
index cf4f20f76..f11d94a45 100644
--- a/lib/mastodon/redis_config.rb
+++ b/lib/mastodon/redis_config.rb
@@ -1,16 +1,29 @@
 # frozen_string_literal: true
 
-if ENV['REDIS_URL'].blank?
-  password = ENV.fetch('REDIS_PASSWORD') { '' }
-  host     = ENV.fetch('REDIS_HOST') { 'localhost' }
-  port     = ENV.fetch('REDIS_PORT') { 6379 }
-  db       = ENV.fetch('REDIS_DB') { 0 }
+def setup_redis_env_url(prefix = nil, defaults = true)
+  prefix = prefix.to_s.upcase + '_' unless prefix.nil?
+  prefix = '' if prefix.nil?
 
-  ENV['REDIS_URL'] = "redis://#{password.blank? ? '' : ":#{password}@"}#{host}:#{port}/#{db}"
+  return if ENV[prefix + 'REDIS_URL'].present?
+
+  password = ENV.fetch(prefix + 'REDIS_PASSWORD') { '' if defaults }
+  host     = ENV.fetch(prefix + 'REDIS_HOST') { 'localhost' if defaults }
+  port     = ENV.fetch(prefix + 'REDIS_PORT') { 6379 if defaults }
+  db       = ENV.fetch(prefix + 'REDIS_DB') { 0 if defaults }
+
+  ENV[prefix + 'REDIS_URL'] = if [password, host, port, db].all?(&:nil?)
+                                ENV['REDIS_URL']
+                              else
+                                "redis://#{password.blank? ? '' : ":#{password}@"}#{host}:#{port}/#{db}"
+                              end
 end
 
-namespace = ENV.fetch('REDIS_NAMESPACE') { nil }
+setup_redis_env_url
+setup_redis_env_url(:cache, false)
+
+namespace       = ENV.fetch('REDIS_NAMESPACE') { nil }
 cache_namespace = namespace ? namespace + '_cache' : 'cache'
+
 REDIS_CACHE_PARAMS = {
   expires_in: 10.minutes,
   namespace: cache_namespace,
diff --git a/lib/mastodon/snowflake.rb b/lib/mastodon/snowflake.rb
index 219e323d4..9e5bc7383 100644
--- a/lib/mastodon/snowflake.rb
+++ b/lib/mastodon/snowflake.rb
@@ -7,7 +7,7 @@ module Mastodon::Snowflake
     def self.around_create(record)
       now = Time.now.utc
 
-      if record.created_at.nil? || record.created_at >= now || record.created_at == record.updated_at
+      if record.created_at.nil? || record.created_at >= now || record.created_at == record.updated_at || record.override_timestamps
         yield
       else
         record.id = Mastodon::Snowflake.id_at(record.created_at)
diff --git a/lib/tasks/mastodon.rake b/lib/tasks/mastodon.rake
index 505c7e0fa..00a85fa5e 100644
--- a/lib/tasks/mastodon.rake
+++ b/lib/tasks/mastodon.rake
@@ -2,6 +2,8 @@
 
 require 'optparse'
 require 'colorize'
+require 'tty-command'
+require 'tty-prompt'
 
 namespace :mastodon do
   desc 'Configure the instance for production use'
@@ -107,9 +109,16 @@ namespace :mastodon do
           q.convert :int
         end
 
+        env['REDIS_PASSWORD'] = prompt.ask('Redis password:') do |q|
+          q.required false
+          q.default nil
+          q.modify :strip
+        end
+
         redis_options = {
           host: env['REDIS_HOST'],
           port: env['REDIS_PORT'],
+          password: env['REDIS_PASSWORD'],
           driver: :hiredis,
         }