sources: add image_url?, page_url?, and profile_url? methods.

Add methods to Source::URL for determining whether a URL is an image
URL, a page URL, or a profile URL.

Also add more source URL tests and fix various URL parsing bugs.

test/unit/sources/skeb_test.rb

@@ -99,11 +99,12 @@ module Sources
       end
     end
 
-    context "generating page urls" do
-      should "handle inconvertible urls" do
-        bad_source = "https://skeb.imgix.net/requests/229088_2?bg=%23fff&auto=format&w=800&s=9cac8b76c0838f2df4f19ebc41c1ae0a"
-        assert_nil(Source::URL.page_url(bad_source))
-      end
+    should "Parse Skeb URLs correctly" do
+      assert(Source::URL.image_url?("https://skeb.imgix.net/requests/229088_2?bg=%23fff&auto=format&w=800&s=9cac8b76c0838f2df4f19ebc41c1ae0a"))
+      assert(Source::URL.image_url?("https://skeb.imgix.net/uploads/origins/04d62c2f-e396-46f9-903a-3ca8bd69fc7c?bg=%23fff&auto=format&w=800&s=966c5d0389c3b94dc36ac970f812bef4"))
+      assert(Source::URL.image_url?("https://skeb-production.s3.ap-northeast-1.amazonaws.com/uploads/outputs/20f9d68f-50ec-44ae-8630-173fc38a2d6a?response-content-disposition=attachment%3B%20filename%3D%22458093-1.output.mp4%22%3B%20filename%2A%3DUTF-8%27%27458093-1.output.mp4&response-content-type=video%2Fmp4&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIVPUTFQBBL7UDSUA%2F20220221%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20220221T200057Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=7f028cfd9a56344cf1d42410063fad3ef30a1e47b83cef047247e0c37df01df0"))
+      assert(Source::URL.page_url?("https://skeb.jp/@OrvMZ/works/3 "))
+      assert(Source::URL.profile_url?("https://skeb.jp/@asanagi"))
     end
   end
 end