fixes #1149

app/logical/post_query_builder.rb

@@ -157,6 +157,8 @@ class PostQueryBuilder
     if q[:source]
       if q[:source] == "none%"
         relation = relation.where("(posts.source = '' OR posts.source IS NULL)")
+      elsif q[:source] == "http%"
+        relation = relation.where("(posts.source like ?)", "http%")
       elsif q[:source] =~ /^%\.?pixiv(?:\.net(?:\/img)?)?(?:%\/|(?=%$))(.+)$/
         relation = relation.where("SourcePattern(posts.source) LIKE ? ESCAPE E'\\\\'", "pixiv/" + $1)
         has_constraints!

app/models/artist.rb

@@ -114,7 +114,7 @@ class Artist < ActiveRecord::Base
       Artist.new.tap do |artist|
         if params[:name]
           artist.name = params[:name]
-          post = Post.tag_match("source:http* #{artist.name}").first
+          post = Post.tag_match("source:http #{artist.name}").first
           unless post.nil? || post.source.blank?
             artist.url_string = post.source
           end