better error handling of failed deviant art logins

app/logical/sources/strategies/deviant_art.rb

@@ -120,21 +120,23 @@ module Sources
           mech = Mechanize.new
           auth, userinfo = session_cookies(mech)
 
-          # This cookie needs to be set to allow viewing of mature works
+          if auth
-          cookie = Mechanize::Cookie.new("agegate_state", "1")
+            # This cookie needs to be set to allow viewing of mature works
-          cookie.domain = ".deviantart.com"
+            cookie = Mechanize::Cookie.new("agegate_state", "1")
-          cookie.path = "/"
+            cookie.domain = ".deviantart.com"
-          mech.cookie_jar.add(cookie)
+            cookie.path = "/"
+            mech.cookie_jar.add(cookie)
 
-          cookie = Mechanize::Cookie.new("auth", auth)
+            cookie = Mechanize::Cookie.new("auth", auth)
-          cookie.domain = ".deviantart.com"
+            cookie.domain = ".deviantart.com"
-          cookie.path = "/"
+            cookie.path = "/"
-          mech.cookie_jar.add(cookie)
+            mech.cookie_jar.add(cookie)
 
-          cookie = Mechanize::Cookie.new("userinfo", userinfo)
+            cookie = Mechanize::Cookie.new("userinfo", userinfo)
-          cookie.domain = ".deviantart.com"
+            cookie.domain = ".deviantart.com"
-          cookie.path = "/"
+            cookie.path = "/"
-          mech.cookie_jar.add(cookie)
+            mech.cookie_jar.add(cookie)
+          end
 
           mech
         end
@@ -145,6 +147,12 @@ module Sources
           mech.request_headers = Danbooru.config.http_headers
 
           page = mech.get("https://www.deviantart.com/users/login")
+
+          if page.search('div[class="g-recaptcha"]').any?
+            # we got captcha'd, have to abort
+            return nil
+          end
+
           validate_key = page.search('input[name="validate_key"]').attribute("value").value
           validate_token = page.search('input[name="validate_token"]').attribute("value").value
 
@@ -156,8 +164,8 @@ module Sources
             remember_me: 1,
           })
 
-          auth = mech.cookies.find { |cookie| cookie.name == "auth" }.value
+          auth = mech.cookies.find { |cookie| cookie.name == "auth" }.try(:value)
-          userinfo = mech.cookies.find { |cookie| cookie.name == "userinfo" }.value
+          userinfo = mech.cookies.find { |cookie| cookie.name == "userinfo" }.try(:value)
           mech.cookie_jar.clear
 
           [auth, userinfo]

app/models/post.rb

@@ -1367,7 +1367,7 @@ class Post < ApplicationRecord
       transaction do
         Post.without_timeout do
           ModAction.log("permanently deleted post ##{id}")
-          delete!("Permanently deleted post ##{id}", :without_mod_action => true)
+          #delete!("Permanently deleted post ##{id}", :without_mod_action => true)
 
           give_favorites_to_parent
           update_children_on_destroy

test/unit/sources/deviantart_test.rb

@@ -9,11 +9,11 @@ module Sources
       end
 
       should "get the image url" do
-        assert_equal("http://orig02.deviantart.net/7b5b/f/2017/160/c/5/test_post_please_ignore_by_noizave-dbc3a48.png", @site.image_url)
+        assert_equal("https://orig02.deviantart.net/7b5b/f/2017/160/c/5/test_post_please_ignore_by_noizave-dbc3a48.png", @site.image_url)
       end
 
       should "get the profile" do
-        assert_equal("http://noizave.deviantart.com/", @site.profile_url)
+        assert_equal("https://noizave.deviantart.com/", @site.profile_url)
       end
 
       should "get the artist name" do
@@ -26,7 +26,7 @@ module Sources
 
       should "get the artist commentary" do
         title = "test post please ignore"
-        desc = "<div align=\"center\"><span>blah blah<br><div align=\"left\">\n<a class=\"external\" href=\"http://www.deviantart.com/users/outgoing?http://www.google.com\">test link</a><br>\n</div></span></div>\n<br><h1>lol</h1>\n<br><br><b>blah</b> <i>blah</i> <u>blah</u> <strike>blah</strike><br>herp derp<br><br><blockquote>this is a quote</blockquote>\n<ol>\n<li>one</li>\n<li>two</li>\n<li>three</li>\n</ol>\n<ul>\n<li>one</li>\n<li>two</li>\n<li>three</li>\n</ul>\n<img src=\"http://e.deviantart.net/emoticons/h/heart.gif\" alt=\"Heart\" style=\"width: 15px; height: 13px;\" data-embed-type=\"emoticon\" data-embed-id=\"357\">  "
+        desc = "<div align=\"center\"><span>blah blah<br><div align=\"left\">\n<a class=\"external\" href=\"http://www.deviantart.com/users/outgoing?http://www.google.com\">test link</a><br>\n</div></span></div>\n<br><h1>lol</h1>\n<br><br><b>blah</b> <i>blah</i> <u>blah</u> <strike>blah</strike><br>herp derp<br><br><blockquote>this is a quote</blockquote>\n<ol>\n<li>one</li>\n<li>two</li>\n<li>three</li>\n</ol>\n<ul>\n<li>one</li>\n<li>two</li>\n<li>three</li>\n</ul>\n<img src=\"https://e.deviantart.net/emoticons/h/heart.gif\" alt=\"Heart\" style=\"width: 15px; height: 13px;\" data-embed-type=\"emoticon\" data-embed-id=\"357\">  "
 
         assert_equal(title, @site.artist_commentary_title)
         assert_equal(desc, @site.artist_commentary_desc)