diff --git a/app/logical/danbooru/http.rb b/app/logical/danbooru/http.rb
index d03858f3c..83d88c105 100644
--- a/app/logical/danbooru/http.rb
+++ b/app/logical/danbooru/http.rb
@@ -40,7 +40,7 @@ module Danbooru
     attr_accessor :max_size, :http
 
     class << self
-      delegate :get, :head, :put, :post, :delete, :cache, :follow, :max_size, :timeout, :auth, :basic_auth, :headers, :cookies, :use, :public_only, :download_media, to: :new
+      delegate :get, :head, :put, :post, :delete, :cache, :follow, :max_size, :timeout, :auth, :basic_auth, :headers, :cookies, :use, :public_only, :with_legacy_ssl, :download_media, to: :new
     end
 
     def initialize
@@ -136,6 +136,18 @@ module Danbooru
       end
     end
 
+    # allow requests to sites using unsafe legacy renegotiations (such as dic.nicovideo.jp)
+    # see https://github.com/openssl/openssl/commit/72d2670bd21becfa6a64bb03fa55ad82d6d0c0f3
+    def with_legacy_ssl
+      dup.tap do |o|
+        o.http = o.http.dup.tap do |http|
+          ctx = OpenSSL::SSL::SSLContext.new
+          ctx.options |= OpenSSL::SSL::OP_LEGACY_SERVER_CONNECT
+          http.default_options = http.default_options.with_ssl_context(ctx)
+        end
+      end
+    end
+
     concerning :DownloadMethods do
       # Download a file from `url` and return a {MediaFile}.
       #
diff --git a/app/logical/nico_seiga_api_client.rb b/app/logical/nico_seiga_api_client.rb
index d0b205ece..15dd53b92 100644
--- a/app/logical/nico_seiga_api_client.rb
+++ b/app/logical/nico_seiga_api_client.rb
@@ -19,12 +19,7 @@ class NicoSeigaApiClient
     when "illust"
       [api_response["id"]]
     when "manga"
-      manga_api_response.map do |x|
-        case x["meta"]["source_url"]
-        when %r{/thumb/(\d+)\w}i then Regexp.last_match(1)
-        when %r{nicoseiga\.cdn\.nimg\.jp/drm/image/\w+/(\d+)\w}i then Regexp.last_match(1)
-        end
-      end
+      manga_api_response.map { |x| Source::URL.parse(x.dig("meta", "source_url"))&.image_id }.compact
     end
   end
 
@@ -37,11 +32,21 @@ class NicoSeigaApiClient
   end
 
   def tags
-    api_response.dig("tag_list", "tag").to_a.map { |t| t["name"] }.compact
+    tags = api_response.dig("tag_list", "tag")
+    if tags.instance_of? Hash
+      # When a manga post has a single tag, the XML parser thinks it's a hash instead of an array of hashes,
+      # so we need to manually turn it into the latter. Example: https://seiga.nicovideo.jp/watch/mg302561
+      tags = [tags]
+    end
+    tags.to_a.map { |t| t["name"] }.compact
   end
 
   def user_id
-    api_response["user_id"]
+    if api_response["user_id"].to_i == 0  # anonymous: https://nico.ms/mg310193
+      nil
+    else
+      api_response["user_id"]
+    end
   end
 
   def user_name
@@ -80,6 +85,7 @@ class NicoSeigaApiClient
   end
 
   def user_api_response(user_id)
+    return {} unless user_id.present?
     resp = get("#{XML_API}/user/info?id=#{user_id}")
     return {} if resp.blank? || resp.code.to_i == 404
     Hash.from_xml(resp.to_s)["response"]["user"]
diff --git a/app/logical/source/extractor/nico_seiga.rb b/app/logical/source/extractor/nico_seiga.rb
index 845344802..2303ba146 100644
--- a/app/logical/source/extractor/nico_seiga.rb
+++ b/app/logical/source/extractor/nico_seiga.rb
@@ -95,6 +95,14 @@ module Source
         parsed_url.manga_id || parsed_referer&.manga_id
       end
 
+      def http
+        if parsed_url.oekaki_id.present?
+          super.with_legacy_ssl
+        else
+          super
+        end
+      end
+
       def api_client
         if illust_id.present?
           NicoSeigaApiClient.new(work_id: illust_id, type: "illust", http: http)
diff --git a/app/logical/source/url/nico_seiga.rb b/app/logical/source/url/nico_seiga.rb
index b8b8fa6a6..bbe9409b3 100644
--- a/app/logical/source/url/nico_seiga.rb
+++ b/app/logical/source/url/nico_seiga.rb
@@ -18,8 +18,7 @@
 # Unhandled URLs
 #
 # * https://lohas.nicoseiga.jp/material/5746c5/4459092
-# * https://dic.nicovideo.jp/oekaki/52833.png
-#
+
 module Source
   class URL::NicoSeiga < Source::URL
     attr_reader :illust_id, :manga_id, :image_id, :oekaki_id, :sm_video_id, :nm_video_id, :user_id, :username, :profile_url
@@ -92,6 +91,10 @@ module Source
       in "dcdn.cdn.nimg.jpg", *, /^\d+$/ => image_id
         @image_id = image_id
 
+      # https://deliver.cdn.nicomanga.jp/thumb/7891081p?1590171867
+      in "deliver.cdn.nicomanga.jp", "thumb", /^(\d+)p$/ => image_id
+        @image_id = $1
+
       # https://deliver.cdn.nicomanga.jp/thumb/aHR0cHM6Ly9kZWxpdmVyLmNkbi5uaWNvbWFuZ2EuanAvdGh1bWIvODEwMDk2OHA_MTU2NTY5OTg4MA.webp (page: https://seiga.nicovideo.jp/watch/mg316708, full image: https://lohas.nicoseiga.jp/priv/1f6d38ef2ba6fc9d9e27823babc4cf721cef16ec/1646906617/8100969)
       in "deliver.cdn.nicomanga.jp", *rest
         # unhandled
@@ -131,7 +134,7 @@ module Source
 
       # https://www.nicovideo.jp/user/4572975
       # https://www.nicovideo.jp/user/20446930/mylist/28674289
-      in ("www.nicovideo.jp"), "user", /^\d+$/ => user_id, *rest
+      in "www.nicovideo.jp", "user", /^\d+$/ => user_id, *rest
         @user_id = user_id
         @profile_url = "https://www.nicovideo.jp/user/#{user_id}"
 
@@ -191,8 +194,8 @@ module Source
         "https://www.nicovideo.jp/watch/sm#{sm_video_id}"
       elsif oekaki_id.present?
         "https://dic.nicovideo.jp/oekaki_id/#{oekaki_id}"
-      #elsif image_id.present?
-      #  "https://seiga.nicovideo.jp/image/source/#{image_id}"
+      # elsif image_id.present?
+      #   "https://seiga.nicovideo.jp/image/source/#{image_id}"
       end
     end
   end
diff --git a/test/test_helpers/source_test_helper.rb b/test/test_helpers/source_test_helper.rb
index b8d3e379a..7301a4f47 100644
--- a/test/test_helpers/source_test_helper.rb
+++ b/test/test_helpers/source_test_helper.rb
@@ -5,7 +5,7 @@ module SourceTestHelper
   # * If deleted is true, it skips the downloading check, but it still tries everything else and makes sure nothing breaks.
   # * Any passed kwargs parameter is tested against the strategy.
 
-  def strategy_should_work(url, arguments)
+  def strategy_should_work(url, arguments = {})
     # XXX: can't use **kwargs because of a bug with shoulda-context
     referer, download_size, deleted = [:referer, :download_size, :deleted].map { |arg| arguments.delete(arg) }
 
@@ -86,15 +86,15 @@ module SourceTestHelper
     # check any method that is passed as kwargs, in order to hardcode as few things as possible
     # XXX can't use **kwargs because of a bug with shoulda-context, so we're using a hash temporarily
     methods_to_test.each do |method_name, expected_value|
-      actual_value = strategy.try(method_name)
+      actual_value = strategy.public_send(method_name)
 
       should "make sure that '#{method_name}' matches" do
         if expected_value.instance_of? Regexp
           assert_match(expected_value, actual_value)
         elsif expected_value.instance_of? Array
           if expected_value.first.instance_of? Regexp
-            actual_values = actual_value.sort
-            expected_value.sort.each_with_index { |each_value, index| assert_match(each_value, actual_values[index]) }
+            # We don't sort actual_value here because sites like nicoseiga have variable values right in the middle of the url, like timestamps
+            expected_value.zip(actual_value).map { |expected_regex, actual_string| assert_match(expected_regex, actual_string) }
           else
             assert_equal(expected_value.sort, actual_value.sort)
           end
diff --git a/test/unit/sources/nico_seiga_test.rb b/test/unit/sources/nico_seiga_test.rb
index 22cda1d54..902c89cae 100644
--- a/test/unit/sources/nico_seiga_test.rb
+++ b/test/unit/sources/nico_seiga_test.rb
@@ -6,157 +6,188 @@ module Sources
       skip "NicoSeiga credentials not configured" unless Source::Extractor::NicoSeiga.enabled?
     end
 
-    context "The source site for nico seiga" do
-      setup do
-        @site_1 = Source::Extractor.find("http://lohas.nicoseiga.jp/o/910aecf08e542285862954017f8a33a8c32a8aec/1433298801/4937663")
-        @site_2 = Source::Extractor.find("http://seiga.nicovideo.jp/seiga/im4937663")
-        @site_3 = Source::Extractor.find("https://seiga.nicovideo.jp/watch/mg470189?track=ct_episode")
-      end
-
-      should "get the profile" do
-        assert_equal("https://seiga.nicovideo.jp/user/illust/7017777", @site_1.profile_url)
-        assert_equal("https://seiga.nicovideo.jp/user/illust/7017777", @site_2.profile_url)
-        assert_equal("https://seiga.nicovideo.jp/user/illust/20797022", @site_3.profile_url)
-      end
-
-      should "get the artist name" do
-        assert_equal("osamari", @site_1.artist_name)
-        assert_equal("osamari", @site_2.artist_name)
-        assert_equal("風呂", @site_3.artist_name)
-      end
-
-      should "get the artist commentary" do
-        assert_equal("コジコジ", @site_2.artist_commentary_title)
-        assert_equal("コジコジのドット絵\nこんなかわいらしい容姿で毒を吐くコジコジが堪らん（切実）", @site_2.artist_commentary_desc)
-
-        assert_equal("ハコ女子 1ハコ目", @site_3.artist_commentary_title)
-        assert_equal("同じクラスの箱田さんはいつもハコを被っている。しかしてその素顔は…？　twitter(@hakojoshi1)にてだいたい毎日更新中。こっちだともうちょっと先まで読めるよ。", @site_3.artist_commentary_desc)
-      end
-
-      should "get the image url(s)" do
-        assert_match(%r{^https?://lohas\.nicoseiga\.jp/priv/}, @site_1.image_urls.sole)
-        assert_match(%r{^https?://lohas\.nicoseiga\.jp/priv/}, @site_2.image_urls.sole)
-
-        expected = [
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315315},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315318},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315319},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315320},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315321},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315322},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315323},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315324},
-          %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315316},
-        ]
-
-        assert_equal(9, @site_3.image_urls.size)
-        9.times { |n| assert_match(expected[n], @site_3.image_urls[n]) }
-      end
-
-      should "get the page url" do
-        assert_equal("https://seiga.nicovideo.jp/seiga/im4937663", @site_1.page_url)
-        assert_equal("https://seiga.nicovideo.jp/seiga/im4937663", @site_2.page_url)
-        assert_equal("https://seiga.nicovideo.jp/watch/mg470189", @site_3.page_url)
-      end
-
-      should "get the tags" do
-        assert_not(@site_1.tags.empty?)
-        first_tag = @site_1.tags.first
-        assert_equal(["アニメ", "https://seiga.nicovideo.jp/tag/%E3%82%A2%E3%83%8B%E3%83%A1"], first_tag)
-
-        assert_not(@site_2.tags.empty?)
-        first_tag = @site_2.tags.first
-        assert_equal(["アニメ", "https://seiga.nicovideo.jp/tag/%E3%82%A2%E3%83%8B%E3%83%A1"], first_tag)
-
-        assert_not(@site_3.tags.empty?)
-        first_tag = @site_3.tags.first
-        assert_equal(["4コマ漫画", "https://seiga.nicovideo.jp/manga/tag/4%E3%82%B3%E3%83%9E%E6%BC%AB%E7%94%BB"], first_tag)
-      end
-
-      should "convert a page into a json representation" do
-        assert_nothing_raised { @site_1.to_h }
-        assert_nothing_raised { @site_2.to_h }
-        assert_nothing_raised { @site_3.to_h }
-      end
-
-      should "work for a https://lohas.nicoseiga.jp/thumb/${id}i url" do
-        site = Source::Extractor.find("https://lohas.nicoseiga.jp/thumb/6844226i")
-
-        assert_match(%r!https?://lohas.nicoseiga.jp/priv/[a-f0-9]{40}/[0-9]+/6844226!, site.image_urls.sole)
-        assert_match("https://seiga.nicovideo.jp/seiga/im6844226", site.page_url)
-      end
+    context "A nicoseiga post url" do
+      tags = [
+        ["アニメ", "https://seiga.nicovideo.jp/tag/%E3%82%A2%E3%83%8B%E3%83%A1"],
+        ["コジコジ", "https://seiga.nicovideo.jp/tag/%E3%82%B3%E3%82%B8%E3%82%B3%E3%82%B8"],
+        ["さくらももこ", "https://seiga.nicovideo.jp/tag/%E3%81%95%E3%81%8F%E3%82%89%E3%82%82%E3%82%82%E3%81%93"],
+        ["ドット絵", "https://seiga.nicovideo.jp/tag/%E3%83%89%E3%83%83%E3%83%88%E7%B5%B5"],
+        ["ニコニコ大百科", "https://seiga.nicovideo.jp/tag/%E3%83%8B%E3%82%B3%E3%83%8B%E3%82%B3%E5%A4%A7%E7%99%BE%E7%A7%91"],
+        ["お絵カキコ", "https://seiga.nicovideo.jp/tag/%E3%81%8A%E7%B5%B5%E3%82%AB%E3%82%AD%E3%82%B3"],
+      ]
+      strategy_should_work(
+        "http://seiga.nicovideo.jp/seiga/im4937663",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/4937663}],
+        download_size: 2_032,
+        page_url: "https://seiga.nicovideo.jp/seiga/im4937663",
+        tags: tags,
+        artist_name: "osamari",
+        tag_name: "nicoseiga7017777",
+        profile_url: "https://seiga.nicovideo.jp/user/illust/7017777",
+        artist_commentary_title: "コジコジ",
+        artist_commentary_desc: "コジコジのドット絵\nこんなかわいらしい容姿で毒を吐くコジコジが堪らん（切実）"
+      )
     end
 
-    context "A manga upload through bookmarklet" do
-      setup do
-        @url = "https://seiga.nicovideo.jp/image/source/9146749"
-        @ref = "https://seiga.nicovideo.jp/watch/mg389884"
-        @site = Source::Extractor.find(@url, @ref)
-      end
-
-      should "get the correct pic" do
-        assert_match(%r!https?://lohas.nicoseiga.jp/priv/[a-f0-9]{40}/[0-9]+/9146749!, @site.image_urls.sole)
-      end
-
-      should "get the page url" do
-        assert_equal(@ref, @site.page_url)
-      end
+    context "A nicoseiga image url" do
+      tags = [
+        ["アニメ", "https://seiga.nicovideo.jp/tag/%E3%82%A2%E3%83%8B%E3%83%A1"],
+        ["コジコジ", "https://seiga.nicovideo.jp/tag/%E3%82%B3%E3%82%B8%E3%82%B3%E3%82%B8"],
+        ["さくらももこ", "https://seiga.nicovideo.jp/tag/%E3%81%95%E3%81%8F%E3%82%89%E3%82%82%E3%82%82%E3%81%93"],
+        ["ドット絵", "https://seiga.nicovideo.jp/tag/%E3%83%89%E3%83%83%E3%83%88%E7%B5%B5"],
+        ["ニコニコ大百科", "https://seiga.nicovideo.jp/tag/%E3%83%8B%E3%82%B3%E3%83%8B%E3%82%B3%E5%A4%A7%E7%99%BE%E7%A7%91"],
+        ["お絵カキコ", "https://seiga.nicovideo.jp/tag/%E3%81%8A%E7%B5%B5%E3%82%AB%E3%82%AD%E3%82%B3"],
+      ]
+      strategy_should_work(
+        "http://lohas.nicoseiga.jp/o/910aecf08e542285862954017f8a33a8c32a8aec/1433298801/4937663",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/4937663}],
+        download_size: 2_032,
+        page_url: "https://seiga.nicovideo.jp/seiga/im4937663",
+        tags: tags,
+        artist_name: "osamari",
+        tag_name: "nicoseiga7017777",
+        profile_url: "https://seiga.nicovideo.jp/user/illust/7017777",
+        artist_commentary_title: "コジコジ",
+        artist_commentary_desc: "コジコジのドット絵\nこんなかわいらしい容姿で毒を吐くコジコジが堪らん（切実）"
+      )
     end
 
-    context "A manga image" do
-      should "work" do
-        @source = Source::Extractor.find("https://drm.cdn.nicomanga.jp/image/d4a2faa68ec34f95497db6601a4323fde2ccd451_9537/8017978p?1570012695")
+    context "A nicoseiga manga url" do
+      image_urls = [
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315315},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315318},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315319},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315320},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315321},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315322},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315323},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315324},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10315316},
+      ]
 
-        assert_match(%r{\Ahttps://lohas\.nicoseiga\.jp/priv/\h{40}/\d+/8017978\z}, @source.image_urls.sole)
-      end
+      strategy_should_work(
+        "https://seiga.nicovideo.jp/watch/mg470189?track=ct_episode",
+        image_urls: image_urls,
+        page_url: "https://seiga.nicovideo.jp/watch/mg470189",
+        artist_name: "風呂",
+        profile_url: "https://seiga.nicovideo.jp/user/illust/20797022",
+        artist_commentary_title: "ハコ女子 1ハコ目",
+        artist_commentary_desc: "同じクラスの箱田さんはいつもハコを被っている。しかしてその素顔は…？　twitter(@hakojoshi1)にてだいたい毎日更新中。こっちだともうちょっと先まで読めるよ。"
+      )
     end
 
-    context "A nico.ms illust URL" do
-      should "work" do
-        @source = Source::Extractor.find("https://nico.ms/im10922621")
-
-        assert_match(%r{\Ahttps://lohas\.nicoseiga\.jp/priv/\h{40}/\d+/10922621\z}, @source.image_urls.sole)
-      end
+    context "A https://lohas.nicoseiga.jp/thumb/${id}i url" do
+      strategy_should_work(
+        "https://lohas.nicoseiga.jp/thumb/6844226i",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/6844226}],
+        page_url: "https://seiga.nicovideo.jp/seiga/im6844226"
+      )
     end
 
-    context "A nico.ms manga URL" do
-      should "work" do
-        @source = Source::Extractor.find("https://nico.ms/mg310193")
+    context "An image/source/123 url with referrer" do
+      strategy_should_work(
+        "https://seiga.nicovideo.jp/image/source/9146749",
+        referer: "https://seiga.nicovideo.jp/watch/mg389884",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/9146749}],
+        page_url: "https://seiga.nicovideo.jp/watch/mg389884"
+      )
+    end
 
-        assert_equal(19, @source.image_urls.size)
-        assert_equal("https://seiga.nicovideo.jp/watch/mg310193", @source.page_url)
-      end
+    context "A drm.cdn.nicomanga.jp image url" do
+      strategy_should_work(
+        "https://drm.cdn.nicomanga.jp/image/d4a2faa68ec34f95497db6601a4323fde2ccd451_9537/8017978p?1570012695",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017978}]
+      )
+    end
+
+    context "A nico.ms illust url" do
+      strategy_should_work(
+        "https://nico.ms/im10922621",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/10922621}],
+        page_url: "https://seiga.nicovideo.jp/seiga/im10922621",
+        profile_url: "https://seiga.nicovideo.jp/user/illust/2258804"
+      )
+    end
+
+    context "A nico.ms manga url from an anonymous user" do
+      image_urls = [
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017978},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017979},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017980},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017981},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017982},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017983},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017984},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017985},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017986},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017987},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017988},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017989},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017990},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017991},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017992},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017993},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017994},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017995},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/8017996},
+      ]
+
+      strategy_should_work(
+        "https://nico.ms/mg310193",
+        image_urls: image_urls,
+        artist_name: nil,
+        profile_url: nil,
+        artist_commentary_title: "ライブダンジョン！ 第1話前半"
+      )
+    end
+
+    context "An anonymous illust" do
+      strategy_should_work(
+        "https://seiga.nicovideo.jp/seiga/im520647",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/520647}],
+        artist_name: nil,
+        profile_url: nil
+      )
     end
 
     context "A nicoseiga video" do
-      should "not raise anything" do
-        site = Source::Extractor.find("https://www.nicovideo.jp/watch/sm36465441")
-        assert_nothing_raised { site.to_h }
-      end
-    end
-
-    context "An anonymous picture" do
-      should "still work" do
-        site = Source::Extractor.find("https://seiga.nicovideo.jp/seiga/im520647")
-
-        assert_nothing_raised { site.to_h }
-      end
+      strategy_should_work(
+        "https://www.nicovideo.jp/watch/sm36465441"
+      )
     end
 
     context "An age-restricted picture" do
-      should "still work" do
-        site = Source::Extractor.find("http://seiga.nicovideo.jp/seiga/im9208126")
-
-        assert_match(%r!https?://lohas.nicoseiga.jp/priv/[a-f0-9]{40}/[0-9]+/9208126!, site.image_urls.sole)
-        assert_nothing_raised { site.to_h }
-      end
+      strategy_should_work(
+        "http://seiga.nicovideo.jp/seiga/im9208126",
+        image_urls: [%r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/9208126}],
+        artist_name: "ちふり",
+        profile_url: "https://seiga.nicovideo.jp/user/illust/61431040",
+        tags: ["R-15"],
+        artist_commentary_title: "ゾーヤさんといっしょ"
+      )
     end
 
-    context "An oekaki picture" do
-      should "still work" do
-        site = Source::Extractor.find("https://dic.nicovideo.jp/oekaki/52833.png")
-        assert_nothing_raised { site.to_h }
-      end
+    context "An oekaki direct url" do
+      strategy_should_work(
+        "https://dic.nicovideo.jp/oekaki/52833.png",
+        image_urls: ["https://dic.nicovideo.jp/oekaki/52833.png"]
+      )
+    end
+
+    context "A nicoseiga manga page with a single tag (source of XML misparsing)" do
+      image_urls = [
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/7891076},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/7891080},
+        %r{https://lohas\.nicoseiga\.jp/priv/\h+/\d+/7891081},
+      ]
+      strategy_should_work(
+        "https://seiga.nicovideo.jp/watch/mg302561",
+        image_urls: image_urls,
+        page_url: "https://seiga.nicovideo.jp/watch/mg302561",
+        tags: [["ロリ", "https://seiga.nicovideo.jp/manga/tag/%E3%83%AD%E3%83%AA"]],
+        artist_name: "とろてい",
+        tag_name: "nicoseiga1848060"
+      )
     end
 
     context "A commentary with spoiler" do
@@ -219,34 +250,7 @@ module Sources
       assert(Source::URL.profile_url?("https://3d.nicovideo.jp/u/siobi"))
       assert(Source::URL.profile_url?("http://game.nicovideo.jp/atsumaru/users/7757217"))
 
-      refute(Source::URL.profile_url?("https://seiga.nicovideo.jp"))
-    end
-
-    context "downloading a 'http://seiga.nicovideo.jp/seiga/:id' url" do
-      should "download the original file" do
-        @source = "http://seiga.nicovideo.jp/seiga/im4937663"
-        @rewrite = %r{https://lohas.nicoseiga.jp/priv/\h{40}/\d+/4937663}
-        assert_rewritten(@rewrite, @source)
-        assert_downloaded(2_032, @source)
-      end
-    end
-
-    context "downloading a 'http://lohas.nicoseiga.jp/o/:hash/:id' url" do
-      should "download the original file" do
-        @source = "http://lohas.nicoseiga.jp/o/910aecf08e542285862954017f8a33a8c32a8aec/1433298801/4937663"
-        @rewrite = %r{https://lohas.nicoseiga.jp/priv/\h{40}/\d+/4937663}
-        assert_rewritten(@rewrite, @source)
-        assert_downloaded(2_032, @source)
-      end
-    end
-
-    context "downloading a 'https://lohas.nicoseiga.jp/thumb/:id' url" do
-      should "download the original file" do
-        @source = "https://lohas.nicoseiga.jp/thumb/4937663i"
-        @rewrite = %r{https://lohas.nicoseiga.jp/priv/\h{40}/\d+/4937663}
-        assert_rewritten(@rewrite, @source)
-        assert_downloaded(2_032, @source)
-      end
+      assert_not(Source::URL.profile_url?("https://seiga.nicovideo.jp"))
     end
   end
 end