Merge branch 'master' into stream-sort

34 files changed, 331 insertions, 581 deletions

diff --git a/src/invidious/channels/about.cr b/src/invidious/channels/about.cr
index 0054f8f2..8b60a728 100644
--- a/src/invidious/channels/about.cr
+++ b/src/invidious/channels/about.cr
@@ -18,8 +18,8 @@ record AboutChannel,
 
 def get_about_info(ucid, locale) : AboutChannel
   begin
-    # "EgVhYm91dA==" is the base64-encoded protobuf object {"2:string":"about"}
-    initdata = YoutubeAPI.browse(browse_id: ucid, params: "EgVhYm91dA==")
+    # Fetch channel information from channel home page
+    initdata = YoutubeAPI.browse(browse_id: ucid, params: "")
   rescue
     raise InfoException.new("Could not get channel info.")
   end
diff --git a/src/invidious/channels/channels.cr b/src/invidious/channels/channels.cr
index c3d6124f..be739673 100644
--- a/src/invidious/channels/channels.cr
+++ b/src/invidious/channels/channels.cr
@@ -93,7 +93,7 @@ struct ChannelVideo
   def to_tuple
     {% begin %}
       {
-        {{*@type.instance_vars.map(&.name)}}
+        {{@type.instance_vars.map(&.name).splat}}
       }
     {% end %}
   end
diff --git a/src/invidious/channels/videos.cr b/src/invidious/channels/videos.cr
index 02fc4d2f..6cc30142 100644
--- a/src/invidious/channels/videos.cr
+++ b/src/invidious/channels/videos.cr
@@ -73,12 +73,6 @@ def make_initial_content_ctoken(ucid, content_type, sort_by) : String
   return produce_channel_content_continuation(ucid, content_type, sort_by: sort_by)
 end
 
-# Used in bypass_captcha_job.cr
-def produce_channel_videos_url(ucid, page = 1, auto_generated = nil, sort_by = "newest", v2 = false)
-  continuation = produce_channel_content_continuation(ucid, "videos", page, auto_generated, sort_by, v2)
-  return "/browse_ajax?continuation=#{continuation}&gl=US&hl=en"
-end
-
 module Invidious::Channel::Tabs
   extend self
 
diff --git a/src/invidious/config.cr b/src/invidious/config.cr
index 429d9246..09c2168b 100644
--- a/src/invidious/config.cr
+++ b/src/invidious/config.cr
@@ -48,7 +48,7 @@ struct ConfigPreferences
   def to_tuple
     {% begin %}
       {
-        {{*@type.instance_vars.map { |var| "#{var.name}: #{var.name}".id }}}
+        {{(@type.instance_vars.map { |var| "#{var.name}: #{var.name}".id }).splat}}
       }
     {% end %}
   end
@@ -133,10 +133,6 @@ class Config
   # Saved cookies in "name1=value1; name2=value2..." format
   @[YAML::Field(converter: Preferences::StringToCookies)]
   property cookies : HTTP::Cookies = HTTP::Cookies.new
-  # Key for Anti-Captcha
-  property captcha_key : String? = nil
-  # API URL for Anti-Captcha
-  property captcha_api_url : String = "https://api.anti-captcha.com"
 
   # Playlist length limit
   property playlist_length_limit : Int32 = 500
diff --git a/src/invidious/database/statistics.cr b/src/invidious/database/statistics.cr
index 1df549e2..9e4963fd 100644
--- a/src/invidious/database/statistics.cr
+++ b/src/invidious/database/statistics.cr
@@ -15,7 +15,7 @@ module Invidious::Database::Statistics
     PG_DB.query_one(request, as: Int64)
   end
 
-  def count_users_active_1m : Int64
+  def count_users_active_6m : Int64
     request = <<-SQL
       SELECT count(*) FROM users
       WHERE CURRENT_TIMESTAMP - updated < '6 months'
@@ -24,7 +24,7 @@ module Invidious::Database::Statistics
     PG_DB.query_one(request, as: Int64)
   end
 
-  def count_users_active_6m : Int64
+  def count_users_active_1m : Int64
     request = <<-SQL
       SELECT count(*) FROM users
       WHERE CURRENT_TIMESTAMP - updated < '1 month'
diff --git a/src/invidious/frontend/comments_reddit.cr b/src/invidious/frontend/comments_reddit.cr
index b5647bae..4dda683e 100644
--- a/src/invidious/frontend/comments_reddit.cr
+++ b/src/invidious/frontend/comments_reddit.cr
@@ -33,7 +33,7 @@ module Invidious::Frontend::Comments
             <a href="javascript:void(0)" data-onclick="toggle_parent">[ − ]</a>
             <b><a href="https://www.reddit.com/user/#{child.author}">#{child.author}</a></b>
             #{translate_count(locale, "comments_points_count", child.score, NumberFormatting::Separator)}
-            <span title="#{child.created_utc.to_s(translate(locale, "%a %B %-d %T %Y UTC"))}">#{translate(locale, "`x` ago", recode_date(child.created_utc, locale))}</span>
+            <span title="#{child.created_utc.to_s("%a %B %-d %T %Y UTC")}">#{translate(locale, "`x` ago", recode_date(child.created_utc, locale))}</span>
             <a href="https://www.reddit.com#{child.permalink}" title="#{translate(locale, "permalink")}">#{translate(locale, "permalink")}</a>
             </p>
             <div>
diff --git a/src/invidious/frontend/comments_youtube.cr b/src/invidious/frontend/comments_youtube.cr
index ecc0bc1b..aecac87f 100644
--- a/src/invidious/frontend/comments_youtube.cr
+++ b/src/invidious/frontend/comments_youtube.cr
@@ -107,6 +107,36 @@ module Invidious::Frontend::Comments
               </div>
               END_HTML
             end
+          when "multiImage"
+            html << <<-END_HTML
+              <section class="carousel">
+              <a class="skip-link" href="#skip-#{child["commentId"]}">#{translate(locale, "carousel_skip")}</a>
+              <div class="slides">
+              END_HTML
+            image_array = attachment["images"].as_a
+
+            image_array.each_index do |i|
+              html << <<-END_HTML
+                  <div class="slides-item slide-#{i + 1}" id="#{child["commentId"]}-slide-#{i + 1}" aria-label="#{translate(locale, "carousel_slide", {"current" => (i + 1).to_s, "total" => image_array.size.to_s})}" tabindex="0">
+                    <img loading="lazy" src="/ggpht#{URI.parse(image_array[i][1]["url"].as_s).request_target}" alt="" />
+                  </div>
+                END_HTML
+            end
+
+            html << <<-END_HTML
+              </div>
+              <div class="carousel__nav">
+              END_HTML
+            attachment["images"].as_a.each_index do |i|
+              html << <<-END_HTML
+                  <a class="slider-nav" href="##{child["commentId"]}-slide-#{i + 1}" aria-label="#{translate(locale, "carousel_go_to", (i + 1).to_s)}" tabindex="-1" aria-hidden="true">#{i + 1}</a>
+                END_HTML
+            end
+            html << <<-END_HTML
+              </div>
+              <div id="skip-#{child["commentId"]}"></div>
+            </section>
+            END_HTML
           else nil # Ignore
           end
         end
diff --git a/src/invidious/helpers/errors.cr b/src/invidious/helpers/errors.cr
index 6e5a975d..21b789bc 100644
--- a/src/invidious/helpers/errors.cr
+++ b/src/invidious/helpers/errors.cr
@@ -3,7 +3,7 @@
 # -------------------
 
 macro error_template(*args)
-  error_template_helper(env, {{*args}})
+  error_template_helper(env, {{args.splat}})
 end
 
 def github_details(summary : String, content : String)
@@ -95,7 +95,7 @@ end
 # -------------------
 
 macro error_atom(*args)
-  error_atom_helper(env, {{*args}})
+  error_atom_helper(env, {{args.splat}})
 end
 
 def error_atom_helper(env : HTTP::Server::Context, status_code : Int32, exception : Exception)
@@ -121,7 +121,7 @@ end
 # -------------------
 
 macro error_json(*args)
-  error_json_helper(env, {{*args}})
+  error_json_helper(env, {{args.splat}})
 end
 
 def error_json_helper(
diff --git a/src/invidious/helpers/handlers.cr b/src/invidious/helpers/handlers.cr
index d140a858..174f620d 100644
--- a/src/invidious/helpers/handlers.cr
+++ b/src/invidious/helpers/handlers.cr
@@ -142,63 +142,8 @@ class APIHandler < Kemal::Handler
   exclude ["/api/v1/auth/notifications"], "POST"
 
   def call(env)
-    return call_next env unless only_match? env
-
-    env.response.headers["Access-Control-Allow-Origin"] = "*"
-
-    # Since /api/v1/notifications is an event-stream, we don't want
-    # to wrap the response
-    return call_next env if exclude_match? env
-
-    # Here we swap out the socket IO so we can modify the response as needed
-    output = env.response.output
-    env.response.output = IO::Memory.new
-
-    begin
-      call_next env
-
-      env.response.output.rewind
-
-      if env.response.output.as(IO::Memory).size != 0 &&
-         env.response.headers.includes_word?("Content-Type", "application/json")
-        response = JSON.parse(env.response.output)
-
-        if fields_text = env.params.query["fields"]?
-          begin
-            JSONFilter.filter(response, fields_text)
-          rescue ex
-            env.response.status_code = 400
-            response = {"error" => ex.message}
-          end
-        end
-
-        if env.params.query["pretty"]?.try &.== "1"
-          response = response.to_pretty_json
-        else
-          response = response.to_json
-        end
-      else
-        response = env.response.output.gets_to_end
-      end
-    rescue ex
-      env.response.content_type = "application/json" if env.response.headers.includes_word?("Content-Type", "text/html")
-      env.response.status_code = 500
-
-      if env.response.headers.includes_word?("Content-Type", "application/json")
-        response = {"error" => ex.message || "Unspecified error"}
-
-        if env.params.query["pretty"]?.try &.== "1"
-          response = response.to_pretty_json
-        else
-          response = response.to_json
-        end
-      end
-    ensure
-      env.response.output = output
-      env.response.print response
-
-      env.response.flush
-    end
+    env.response.headers["Access-Control-Allow-Origin"] = "*" if only_match?(env)
+    call_next env
   end
 end
 
diff --git a/src/invidious/helpers/helpers.cr b/src/invidious/helpers/helpers.cr
index 23ff0da9..6add0237 100644
--- a/src/invidious/helpers/helpers.cr
+++ b/src/invidious/helpers/helpers.cr
@@ -78,15 +78,6 @@ def create_notification_stream(env, topics, connection_channel)
           video.published = published
           response = JSON.parse(video.to_json(locale, nil))
 
-          if fields_text = env.params.query["fields"]?
-            begin
-              JSONFilter.filter(response, fields_text)
-            rescue ex
-              env.response.status_code = 400
-              response = {"error" => ex.message}
-            end
-          end
-
           env.response.puts "id: #{id}"
           env.response.puts "data: #{response.to_json}"
           env.response.puts
@@ -113,15 +104,6 @@ def create_notification_stream(env, topics, connection_channel)
             Invidious::Database::ChannelVideos.select_notfications(topic, since_unix).each do |video|
               response = JSON.parse(video.to_json(locale))
 
-              if fields_text = env.params.query["fields"]?
-                begin
-                  JSONFilter.filter(response, fields_text)
-                rescue ex
-                  env.response.status_code = 400
-                  response = {"error" => ex.message}
-                end
-              end
-
               env.response.puts "id: #{id}"
               env.response.puts "data: #{response.to_json}"
               env.response.puts
@@ -155,15 +137,6 @@ def create_notification_stream(env, topics, connection_channel)
         video.published = Time.unix(published)
         response = JSON.parse(video.to_json(locale, nil))
 
-        if fields_text = env.params.query["fields"]?
-          begin
-            JSONFilter.filter(response, fields_text)
-          rescue ex
-            env.response.status_code = 400
-            response = {"error" => ex.message}
-          end
-        end
-
         env.response.puts "id: #{id}"
         env.response.puts "data: #{response.to_json}"
         env.response.puts
@@ -208,3 +181,20 @@ def proxy_file(response, env)
     IO.copy response.body_io, env.response
   end
 end
+
+# Fetch the playback requests tracker from the statistics endpoint.
+#
+# Creates a new tracker when unavailable.
+def get_playback_statistic
+  if (tracker = Invidious::Jobs::StatisticsRefreshJob::STATISTICS["playback"]) && tracker.as(Hash).empty?
+    tracker = {
+      "totalRequests"      => 0_i64,
+      "successfulRequests" => 0_i64,
+      "ratio"              => 0_f64,
+    }
+
+    Invidious::Jobs::StatisticsRefreshJob::STATISTICS["playback"] = tracker
+  end
+
+  return tracker.as(Hash(String, Int64 | Float64))
+end
diff --git a/src/invidious/helpers/i18n.cr b/src/invidious/helpers/i18n.cr
index 76e477a4..23a1aafc 100644
--- a/src/invidious/helpers/i18n.cr
+++ b/src/invidious/helpers/i18n.cr
@@ -78,7 +78,7 @@ def load_all_locales
   return locales
 end
 
-def translate(locale : String?, key : String, text : String | Nil = nil) : String
+def translate(locale : String?, key : String, text : String | Hash(String, String) | Nil = nil) : String
   # Log a warning if "key" doesn't exist in en-US locale and return
   # that key as the text, so this is more or less transparent to the user.
   if !LOCALES["en-US"].has_key?(key)
@@ -101,10 +101,12 @@ def translate(locale : String?, key : String, text : String | Nil = nil) : Strin
     match_length = 0
 
     raw_data.as_h.each do |hash_key, value|
-      if md = text.try &.match(/#{hash_key}/)
-        if md[0].size >= match_length
-          translation = value.as_s
-          match_length = md[0].size
+      if text.is_a?(String)
+        if md = text.try &.match(/#{hash_key}/)
+          if md[0].size >= match_length
+            translation = value.as_s
+            match_length = md[0].size
+          end
         end
       end
     end
@@ -114,8 +116,13 @@ def translate(locale : String?, key : String, text : String | Nil = nil) : Strin
     raise "Invalid translation \"#{raw_data}\""
   end
 
-  if text
+  if text.is_a?(String)
     translation = translation.gsub("`x`", text)
+  elsif text.is_a?(Hash(String, String))
+    # adds support for multi string interpolation. Based on i18next https://www.i18next.com/translation-function/interpolation#basic
+    text.each_key do |hash_key|
+      translation = translation.gsub("{{#{hash_key}}}", text[hash_key])
+    end
   end
 
   return translation
diff --git a/src/invidious/helpers/i18next.cr b/src/invidious/helpers/i18next.cr
index 252af6b9..9f4077e1 100644
--- a/src/invidious/helpers/i18next.cr
+++ b/src/invidious/helpers/i18next.cr
@@ -47,19 +47,19 @@ module I18next::Plurals
 
   private PLURAL_SETS = {
     PluralForms::Single_gt_one => [
-      "ach", "ak", "am", "arn", "br", "fil", "gun", "ln", "mfe", "mg",
-      "mi", "oc", "pt", "tg", "tl", "ti", "tr", "uz", "wa",
+      "ach", "ak", "am", "arn", "br", "fa", "fil", "gun", "ln", "mfe", "mg",
+      "mi", "oc", "pt-PT", "tg", "tl", "ti", "tr", "uz", "wa",
     ],
     PluralForms::Single_not_one => [
       "af", "an", "ast", "az", "bg", "bn", "ca", "da", "de", "dev", "el", "en",
-      "eo", "es", "et", "eu", "fi", "fo", "fur", "fy", "gl", "gu", "ha", "hi",
+      "eo", "et", "eu", "fi", "fo", "fur", "fy", "gl", "gu", "ha", "hi",
       "hu", "hy", "ia", "kk", "kn", "ku", "lb", "mai", "ml", "mn", "mr",
       "nah", "nap", "nb", "ne", "nl", "nn", "no", "nso", "pa", "pap", "pms",
       "ps", "rm", "sco", "se", "si", "so", "son", "sq", "sv", "sw",
       "ta", "te", "tk", "ur", "yo",
     ],
     PluralForms::None => [
-      "ay", "bo", "cgg", "fa", "ht", "id", "ja", "jbo", "ka", "km", "ko", "ky",
+      "ay", "bo", "cgg", "ht", "id", "ja", "jbo", "ka", "km", "ko", "ky",
       "lo", "ms", "sah", "su", "th", "tt", "ug", "vi", "wo", "zh",
     ],
     PluralForms::Dual_Slavic => [
@@ -90,11 +90,13 @@ module I18next::Plurals
     "sk"  => PluralForms::Special_Czech_Slovak,
     "sl"  => PluralForms::Special_Slovenian,
     # Mixed v3/v4 rules
-    "fr"    => PluralForms::Special_French_Portuguese,
-    "hr"    => PluralForms::Special_Hungarian_Serbian,
-    "it"    => PluralForms::Special_Spanish_Italian,
-    "pt-BR" => PluralForms::Special_French_Portuguese,
-    "sr"    => PluralForms::Special_Hungarian_Serbian,
+    "es" => PluralForms::Special_Spanish_Italian,
+    "fr" => PluralForms::Special_French_Portuguese,
+    "hr" => PluralForms::Special_Hungarian_Serbian,
+    "it" => PluralForms::Special_Spanish_Italian,
+    "pt" => PluralForms::Special_French_Portuguese,
+    "pt" => PluralForms::Special_French_Portuguese,
+    "sr" => PluralForms::Special_Hungarian_Serbian,
   }
 
   # These are the v1 and v2 compatible suffixes.
@@ -165,7 +167,7 @@ module I18next::Plurals
 
     def get_plural_form(locale : String) : PluralForms
       # Extract the ISO 639-1 or 639-2 code from an RFC 5646 language code
-      if !locale.matches?(/^pt-BR$/)
+      if !locale.matches?(/^pt-PT$/)
         locale = locale.split('-')[0]
       end
 
diff --git a/src/invidious/helpers/json_filter.cr b/src/invidious/helpers/json_filter.cr
deleted file mode 100644
index 3f4080ba..00000000
--- a/src/invidious/helpers/json_filter.cr
+++ /dev/null
@@ -1,248 +0,0 @@
-module JSONFilter
-  alias BracketIndex = Hash(Int64, Int64)
-
-  alias GroupedFieldsValue = String | Array(GroupedFieldsValue)
-  alias GroupedFieldsList = Array(GroupedFieldsValue)
-
-  class FieldsParser
-    class ParseError < Exception
-    end
-
-    # Returns the `Regex` pattern used to match nest groups
-    def self.nest_group_pattern : Regex
-      # uses a '.' character to match json keys as they are allowed
-      # to contain any unicode codepoint
-      /(?:|,)(?<groupname>[^,\n]*?)\(/
-    end
-
-    # Returns the `Regex` pattern used to check if there are any empty nest groups
-    def self.unnamed_nest_group_pattern : Regex
-      /^\(|\(\(|\/\(/
-    end
-
-    def self.parse_fields(fields_text : String, &) : Nil
-      if fields_text.empty?
-        raise FieldsParser::ParseError.new "Fields is empty"
-      end
-
-      opening_bracket_count = fields_text.count('(')
-      closing_bracket_count = fields_text.count(')')
-
-      if opening_bracket_count != closing_bracket_count
-        bracket_type = opening_bracket_count > closing_bracket_count ? "opening" : "closing"
-        raise FieldsParser::ParseError.new "There are too many #{bracket_type} brackets (#{opening_bracket_count}:#{closing_bracket_count})"
-      elsif match_result = unnamed_nest_group_pattern.match(fields_text)
-        raise FieldsParser::ParseError.new "Unnamed nest group at position #{match_result.begin}"
-      end
-
-      # first, handle top-level single nested properties: items/id, playlistItems/snippet, etc
-      parse_single_nests(fields_text) { |nest_list| yield nest_list }
-
-      # next, handle nest groups: items(id, etag, etc)
-      parse_nest_groups(fields_text) { |nest_list| yield nest_list }
-    end
-
-    def self.parse_single_nests(fields_text : String, &) : Nil
-      single_nests = remove_nest_groups(fields_text)
-
-      if !single_nests.empty?
-        property_nests = single_nests.split(',')
-
-        property_nests.each do |nest|
-          nest_list = nest.split('/')
-          if nest_list.includes? ""
-            raise FieldsParser::ParseError.new "Empty key in nest list: #{nest_list}"
-          end
-          yield nest_list
-        end
-        # else
-        #   raise FieldsParser::ParseError.new "Empty key in nest list 22: #{fields_text} | #{single_nests}"
-      end
-    end
-
-    def self.parse_nest_groups(fields_text : String, &) : Nil
-      nest_stack = [] of NamedTuple(group_name: String, closing_bracket_index: Int64)
-      bracket_pairs = get_bracket_pairs(fields_text, true)
-
-      text_index = 0
-      regex_index = 0
-
-      while regex_result = self.nest_group_pattern.match(fields_text, regex_index)
-        raw_match = regex_result[0]
-        group_name = regex_result["groupname"]
-
-        text_index = regex_result.begin
-        regex_index = regex_result.end
-
-        if text_index.nil? || regex_index.nil?
-          raise FieldsParser::ParseError.new "Received invalid index while parsing nest groups: text_index: #{text_index} | regex_index: #{regex_index}"
-        end
-
-        offset = raw_match.starts_with?(',') ? 1 : 0
-
-        opening_bracket_index = (text_index + group_name.size) + offset
-        closing_bracket_index = bracket_pairs[opening_bracket_index]
-        content_start = opening_bracket_index + 1
-
-        content = fields_text[content_start...closing_bracket_index]
-
-        if content.empty?
-          raise FieldsParser::ParseError.new "Empty nest group at position #{content_start}"
-        else
-          content = remove_nest_groups(content)
-        end
-
-        while nest_stack.size > 0 && closing_bracket_index > nest_stack[nest_stack.size - 1][:closing_bracket_index]
-          if nest_stack.size
-            nest_stack.pop
-          end
-        end
-
-        group_name.split('/').each do |name|
-          nest_stack.push({
-            group_name:            name,
-            closing_bracket_index: closing_bracket_index,
-          })
-        end
-
-        if !content.empty?
-          properties = content.split(',')
-
-          properties.each do |prop|
-            nest_list = nest_stack.map { |nest_prop| nest_prop[:group_name] }
-
-            if !prop.empty?
-              if prop.includes?('/')
-                parse_single_nests(prop) { |list| nest_list += list }
-              else
-                nest_list.push prop
-              end
-            else
-              raise FieldsParser::ParseError.new "Empty key in nest list: #{nest_list << prop}"
-            end
-
-            yield nest_list
-          end
-        end
-      end
-    end
-
-    def self.remove_nest_groups(text : String) : String
-      content_bracket_pairs = get_bracket_pairs(text, false)
-
-      content_bracket_pairs.each_key.to_a.reverse.each do |opening_bracket|
-        closing_bracket = content_bracket_pairs[opening_bracket]
-        last_comma = text.rindex(',', opening_bracket) || 0
-
-        text = text[0...last_comma] + text[closing_bracket + 1...text.size]
-      end
-
-      return text.starts_with?(',') ? text[1...text.size] : text
-    end
-
-    def self.get_bracket_pairs(text : String, recursive = true) : BracketIndex
-      istart = [] of Int64
-      bracket_index = BracketIndex.new
-
-      text.each_char_with_index do |char, index|
-        if char == '('
-          istart.push(index.to_i64)
-        end
-
-        if char == ')'
-          begin
-            opening = istart.pop
-            if recursive || (!recursive && istart.size == 0)
-              bracket_index[opening] = index.to_i64
-            end
-          rescue
-            raise FieldsParser::ParseError.new "No matching opening parenthesis at: #{index}"
-          end
-        end
-      end
-
-      if istart.size != 0
-        idx = istart.pop
-        raise FieldsParser::ParseError.new "No matching closing parenthesis at: #{idx}"
-      end
-
-      return bracket_index
-    end
-  end
-
-  class FieldsGrouper
-    alias SkeletonValue = Hash(String, SkeletonValue)
-
-    def self.create_json_skeleton(fields_text : String) : SkeletonValue
-      root_hash = {} of String => SkeletonValue
-
-      FieldsParser.parse_fields(fields_text) do |nest_list|
-        current_item = root_hash
-        nest_list.each do |key|
-          if current_item[key]?
-            current_item = current_item[key]
-          else
-            current_item[key] = {} of String => SkeletonValue
-            current_item = current_item[key]
-          end
-        end
-      end
-      root_hash
-    end
-
-    def self.create_grouped_fields_list(json_skeleton : SkeletonValue) : GroupedFieldsList
-      grouped_fields_list = GroupedFieldsList.new
-      json_skeleton.each do |key, value|
-        grouped_fields_list.push key
-
-        nested_keys = create_grouped_fields_list(value)
-        grouped_fields_list.push nested_keys unless nested_keys.empty?
-      end
-      return grouped_fields_list
-    end
-  end
-
-  class FilterError < Exception
-  end
-
-  def self.filter(item : JSON::Any, fields_text : String, in_place : Bool = true)
-    skeleton = FieldsGrouper.create_json_skeleton(fields_text)
-    grouped_fields_list = FieldsGrouper.create_grouped_fields_list(skeleton)
-    filter(item, grouped_fields_list, in_place)
-  end
-
-  def self.filter(item : JSON::Any, grouped_fields_list : GroupedFieldsList, in_place : Bool = true) : JSON::Any
-    item = item.clone unless in_place
-
-    if !item.as_h? && !item.as_a?
-      raise FilterError.new "Can't filter '#{item}' by #{grouped_fields_list}"
-    end
-
-    top_level_keys = Array(String).new
-    grouped_fields_list.each do |value|
-      if value.is_a? String
-        top_level_keys.push value
-      elsif value.is_a? Array
-        if !top_level_keys.empty?
-          key_to_filter = top_level_keys.last
-
-          if item.as_h?
-            filter(item[key_to_filter], value, in_place: true)
-          elsif item.as_a?
-            item.as_a.each { |arr_item| filter(arr_item[key_to_filter], value, in_place: true) }
-          end
-        else
-          raise FilterError.new "Tried to filter while top level keys list is empty"
-        end
-      end
-    end
-
-    if item.as_h?
-      item.as_h.select! top_level_keys
-    elsif item.as_a?
-      item.as_a.map { |value| filter(value, top_level_keys, in_place: true) }
-    end
-
-    item
-  end
-end
diff --git a/src/invidious/helpers/utils.cr b/src/invidious/helpers/utils.cr
index a006d602..e438e3b9 100644
--- a/src/invidious/helpers/utils.cr
+++ b/src/invidious/helpers/utils.cr
@@ -262,7 +262,7 @@ def get_referer(env, fallback = "/", unroll = true)
   end
 
   referer = referer.request_target
-  referer = "/" + referer.gsub(/[^\/?@&%=\-_.:,0-9a-zA-Z]/, "").lstrip("/\\")
+  referer = "/" + referer.gsub(/[^\/?@&%=\-_.:,*0-9a-zA-Z]/, "").lstrip("/\\")
 
   if referer == env.request.path
     referer = fallback
diff --git a/src/invidious/helpers/webvtt.cr b/src/invidious/helpers/webvtt.cr
index 56f761ed..260d250f 100644
--- a/src/invidious/helpers/webvtt.cr
+++ b/src/invidious/helpers/webvtt.cr
@@ -4,13 +4,23 @@
 module WebVTT
   # A WebVTT builder generates WebVTT files
   private class Builder
+    # See https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API#cue_payload
+    private ESCAPE_SUBSTITUTIONS = {
+      '&'      => "&amp;",
+      '<'      => "&lt;",
+      '>'      => "&gt;",
+      '\u200E' => "&lrm;",
+      '\u200F' => "&rlm;",
+      '\u00A0' => "&nbsp;",
+    }
+
     def initialize(@io : IO)
     end
 
     # Writes an vtt cue with the specified time stamp and contents
     def cue(start_time : Time::Span, end_time : Time::Span, text : String)
       timestamp(start_time, end_time)
-      @io << text
+      @io << self.escape(text)
       @io << "\n\n"
     end
 
@@ -29,6 +39,10 @@ module WebVTT
       @io << '.' << timestamp.milliseconds.to_s.rjust(3, '0')
     end
 
+    private def escape(text : String) : String
+      return text.gsub(ESCAPE_SUBSTITUTIONS)
+    end
+
     def document(setting_fields : Hash(String, String)? = nil, &)
       @io << "WEBVTT\n"
 
diff --git a/src/invidious/jobs/bypass_captcha_job.cr b/src/invidious/jobs/bypass_captcha_job.cr
deleted file mode 100644
index 71f8a938..00000000
--- a/src/invidious/jobs/bypass_captcha_job.cr
+++ /dev/null
@@ -1,135 +0,0 @@
-class Invidious::Jobs::BypassCaptchaJob < Invidious::Jobs::BaseJob
-  def begin
-    loop do
-      begin
-        random_video = PG_DB.query_one?("select id, ucid from (select id, ucid from channel_videos limit 1000) as s ORDER BY RANDOM() LIMIT 1", as: {id: String, ucid: String})
-        if !random_video
-          random_video = {id: "zj82_v2R6ts", ucid: "UCK87Lox575O_HCHBWaBSyGA"}
-        end
-        {"/watch?v=#{random_video["id"]}&gl=US&hl=en&has_verified=1&bpctr=9999999999", produce_channel_videos_url(ucid: random_video["ucid"])}.each do |path|
-          response = YT_POOL.client &.get(path)
-          if response.body.includes?("To continue with your YouTube experience, please fill out the form below.")
-            html = XML.parse_html(response.body)
-            form = html.xpath_node(%(//form[@action="/das_captcha"])).not_nil!
-            site_key = form.xpath_node(%(.//div[@id="recaptcha"])).try &.["data-sitekey"]
-            s_value = form.xpath_node(%(.//div[@id="recaptcha"])).try &.["data-s"]
-
-            inputs = {} of String => String
-            form.xpath_nodes(%(.//input[@name])).map do |node|
-              inputs[node["name"]] = node["value"]
-            end
-
-            headers = response.cookies.add_request_headers(HTTP::Headers.new)
-
-            response = JSON.parse(HTTP::Client.post(CONFIG.captcha_api_url + "/createTask",
-              headers: HTTP::Headers{"Content-Type" => "application/json"}, body: {
-              "clientKey" => CONFIG.captcha_key,
-              "task"      => {
-                "type"                => "NoCaptchaTaskProxyless",
-                "websiteURL"          => "https://www.youtube.com#{path}",
-                "websiteKey"          => site_key,
-                "recaptchaDataSValue" => s_value,
-              },
-            }.to_json).body)
-
-            raise response["error"].as_s if response["error"]?
-            task_id = response["taskId"].as_i
-
-            loop do
-              sleep 10.seconds
-
-              response = JSON.parse(HTTP::Client.post(CONFIG.captcha_api_url + "/getTaskResult",
-                headers: HTTP::Headers{"Content-Type" => "application/json"}, body: {
-                "clientKey" => CONFIG.captcha_key,
-                "taskId"    => task_id,
-              }.to_json).body)
-
-              if response["status"]?.try &.== "ready"
-                break
-              elsif response["errorId"]?.try &.as_i != 0
-                raise response["errorDescription"].as_s
-              end
-            end
-
-            inputs["g-recaptcha-response"] = response["solution"]["gRecaptchaResponse"].as_s
-            headers["Cookies"] = response["solution"]["cookies"].as_h?.try &.map { |k, v| "#{k}=#{v}" }.join("; ") || ""
-            response = YT_POOL.client &.post("/das_captcha", headers, form: inputs)
-
-            response.cookies
-              .select { |cookie| cookie.name != "PREF" }
-              .each { |cookie| CONFIG.cookies << cookie }
-
-            # Persist cookies between runs
-            File.write("config/config.yml", CONFIG.to_yaml)
-          elsif response.headers["Location"]?.try &.includes?("/sorry/index")
-            location = response.headers["Location"].try { |u| URI.parse(u) }
-            headers = HTTP::Headers{":authority" => location.host.not_nil!}
-            response = YT_POOL.client &.get(location.request_target, headers)
-
-            html = XML.parse_html(response.body)
-            form = html.xpath_node(%(//form[@action="index"])).not_nil!
-            site_key = form.xpath_node(%(.//div[@id="recaptcha"])).try &.["data-sitekey"]
-            s_value = form.xpath_node(%(.//div[@id="recaptcha"])).try &.["data-s"]
-
-            inputs = {} of String => String
-            form.xpath_nodes(%(.//input[@name])).map do |node|
-              inputs[node["name"]] = node["value"]
-            end
-
-            captcha_client = HTTPClient.new(URI.parse(CONFIG.captcha_api_url))
-            captcha_client.family = CONFIG.force_resolve || Socket::Family::INET
-            response = JSON.parse(captcha_client.post("/createTask",
-              headers: HTTP::Headers{"Content-Type" => "application/json"}, body: {
-              "clientKey" => CONFIG.captcha_key,
-              "task"      => {
-                "type"                => "NoCaptchaTaskProxyless",
-                "websiteURL"          => location.to_s,
-                "websiteKey"          => site_key,
-                "recaptchaDataSValue" => s_value,
-              },
-            }.to_json).body)
-
-            captcha_client.close
-
-            raise response["error"].as_s if response["error"]?
-            task_id = response["taskId"].as_i
-
-            loop do
-              sleep 10.seconds
-
-              response = JSON.parse(captcha_client.post("/getTaskResult",
-                headers: HTTP::Headers{"Content-Type" => "application/json"}, body: {
-                "clientKey" => CONFIG.captcha_key,
-                "taskId"    => task_id,
-              }.to_json).body)
-
-              if response["status"]?.try &.== "ready"
-                break
-              elsif response["errorId"]?.try &.as_i != 0
-                raise response["errorDescription"].as_s
-              end
-            end
-
-            inputs["g-recaptcha-response"] = response["solution"]["gRecaptchaResponse"].as_s
-            headers["Cookies"] = response["solution"]["cookies"].as_h?.try &.map { |k, v| "#{k}=#{v}" }.join("; ") || ""
-            response = YT_POOL.client &.post("/sorry/index", headers: headers, form: inputs)
-            headers = HTTP::Headers{
-              "Cookie" => URI.parse(response.headers["location"]).query_params["google_abuse"].split(";")[0],
-            }
-            cookies = HTTP::Cookies.from_client_headers(headers)
-
-            cookies.each { |cookie| CONFIG.cookies << cookie }
-
-            # Persist cookies between runs
-            File.write("config/config.yml", CONFIG.to_yaml)
-          end
-        end
-      rescue ex
-        LOGGER.error("BypassCaptchaJob: #{ex.message}")
-      ensure
-        sleep 1.minute
-        Fiber.yield
-      end
-    end
-  end
-end
diff --git a/src/invidious/jobs/statistics_refresh_job.cr b/src/invidious/jobs/statistics_refresh_job.cr
index a113bd77..66c91ad5 100644
--- a/src/invidious/jobs/statistics_refresh_job.cr
+++ b/src/invidious/jobs/statistics_refresh_job.cr
@@ -18,6 +18,13 @@ class Invidious::Jobs::StatisticsRefreshJob < Invidious::Jobs::BaseJob
       "updatedAt"              => Time.utc.to_unix,
       "lastChannelRefreshedAt" => 0_i64,
     },
+
+    #
+    #    "totalRequests" => 0_i64,
+    #    "successfulRequests" => 0_i64
+    #    "ratio"   => 0_i64
+    #
+    "playback" => {} of String => Int64 | Float64,
   }
 
   private getter db : DB::Database
@@ -30,7 +37,7 @@ class Invidious::Jobs::StatisticsRefreshJob < Invidious::Jobs::BaseJob
 
     loop do
       refresh_stats
-      sleep 1.minute
+      sleep 10.minute
       Fiber.yield
     end
   end
@@ -49,12 +56,15 @@ class Invidious::Jobs::StatisticsRefreshJob < Invidious::Jobs::BaseJob
     users = STATISTICS.dig("usage", "users").as(Hash(String, Int64))
 
     users["total"] = Invidious::Database::Statistics.count_users_total
-    users["activeHalfyear"] = Invidious::Database::Statistics.count_users_active_1m
-    users["activeMonth"] = Invidious::Database::Statistics.count_users_active_6m
+    users["activeHalfyear"] = Invidious::Database::Statistics.count_users_active_6m
+    users["activeMonth"] = Invidious::Database::Statistics.count_users_active_1m
 
     STATISTICS["metadata"] = {
       "updatedAt"              => Time.utc.to_unix,
       "lastChannelRefreshedAt" => Invidious::Database::Statistics.channel_last_update.try &.to_unix || 0_i64,
     }
+
+    # Reset playback requests tracker
+    STATISTICS["playback"] = {} of String => Int64 | Float64
   end
 end
diff --git a/src/invidious/routes/api/v1/misc.cr b/src/invidious/routes/api/v1/misc.cr
index 8a92e160..12942906 100644
--- a/src/invidious/routes/api/v1/misc.cr
+++ b/src/invidious/routes/api/v1/misc.cr
@@ -6,6 +6,22 @@ module Invidious::Routes::API::V1::Misc
     if !CONFIG.statistics_enabled
       return {"software" => SOFTWARE}.to_json
     else
+      # Calculate playback success rate
+      if (tracker = Invidious::Jobs::StatisticsRefreshJob::STATISTICS["playback"]?)
+        tracker = tracker.as(Hash(String, Int64 | Float64))
+
+        if !tracker.empty?
+          total_requests = tracker["totalRequests"]
+          success_count = tracker["successfulRequests"]
+
+          if total_requests.zero?
+            tracker["ratio"] = 1_i64
+          else
+            tracker["ratio"] = (success_count / (total_requests)).round(2)
+          end
+        end
+      end
+
       return Invidious::Jobs::StatisticsRefreshJob::STATISTICS.to_json
     end
   end
@@ -175,6 +191,8 @@ module Invidious::Routes::API::V1::Misc
       json.object do
         json.field "ucid", sub_endpoint["browseId"].as_s if sub_endpoint["browseId"]?
         json.field "videoId", sub_endpoint["videoId"].as_s if sub_endpoint["videoId"]?
+        json.field "playlistId", sub_endpoint["playlistId"].as_s if sub_endpoint["playlistId"]?
+        json.field "startTimeSeconds", sub_endpoint["startTimeSeconds"].as_i if sub_endpoint["startTimeSeconds"]?
         json.field "params", params.try &.as_s
         json.field "pageType", pageType
       end
diff --git a/src/invidious/routes/api/v1/search.cr b/src/invidious/routes/api/v1/search.cr
index 9fb283c2..2922b060 100644
--- a/src/invidious/routes/api/v1/search.cr
+++ b/src/invidious/routes/api/v1/search.cr
@@ -32,11 +32,14 @@ module Invidious::Routes::API::V1::Search
 
     begin
       client = HTTP::Client.new("suggestqueries-clients6.youtube.com")
-      url = "/complete/search?client=youtube&hl=en&gl=#{region}&q=#{URI.encode_www_form(query)}&xssi=t&gs_ri=youtube&ds=yt"
+      client.before_request { |r| add_yt_headers(r) }
+
+      url = "/complete/search?client=youtube&hl=en&gl=#{region}&q=#{URI.encode_www_form(query)}&gs_ri=youtube&ds=yt"
 
       response = client.get(url).body
+      client.close
 
-      body = JSON.parse(response[5..-1]).as_a
+      body = JSON.parse(response[19..-2]).as_a
       suggestions = body[1].as_a[0..-2]
 
       JSON.build do |json|
diff --git a/src/invidious/routes/api/v1/videos.cr b/src/invidious/routes/api/v1/videos.cr
index 1017ac9d..9281f4dd 100644
--- a/src/invidious/routes/api/v1/videos.cr
+++ b/src/invidious/routes/api/v1/videos.cr
@@ -363,4 +363,47 @@ module Invidious::Routes::API::V1::Videos
       end
     end
   end
+
+  def self.clips(env)
+    locale = env.get("preferences").as(Preferences).locale
+
+    env.response.content_type = "application/json"
+
+    clip_id = env.params.url["id"]
+    region = env.params.query["region"]?
+    proxy = {"1", "true"}.any? &.== env.params.query["local"]?
+
+    response = YoutubeAPI.resolve_url("https://www.youtube.com/clip/#{clip_id}")
+    return error_json(400, "Invalid clip ID") if response["error"]?
+
+    video_id = response.dig?("endpoint", "watchEndpoint", "videoId").try &.as_s
+    return error_json(400, "Invalid clip ID") if video_id.nil?
+
+    start_time = nil
+    end_time = nil
+    clip_title = nil
+
+    if params = response.dig?("endpoint", "watchEndpoint", "params").try &.as_s
+      start_time, end_time, clip_title = parse_clip_parameters(params)
+    end
+
+    begin
+      video = get_video(video_id, region: region)
+    rescue ex : NotFoundException
+      return error_json(404, ex)
+    rescue ex
+      return error_json(500, ex)
+    end
+
+    return JSON.build do |json|
+      json.object do
+        json.field "startTime", start_time
+        json.field "endTime", end_time
+        json.field "clipTitle", clip_title
+        json.field "video" do
+          Invidious::JSONify::APIv1.video(video, json, locale: locale, proxy: proxy)
+        end
+      end
+    end
+  end
 end
diff --git a/src/invidious/routes/feeds.cr b/src/invidious/routes/feeds.cr
index 40bca008..e20a7139 100644
--- a/src/invidious/routes/feeds.cr
+++ b/src/invidious/routes/feeds.cr
@@ -407,14 +407,23 @@ module Invidious::Routes::Feeds
     end
 
     spawn do
-      rss = XML.parse_html(body)
-      rss.xpath_nodes("//feed/entry").each do |entry|
-        id = entry.xpath_node("videoid").not_nil!.content
-        author = entry.xpath_node("author/name").not_nil!.content
-        published = Time.parse_rfc3339(entry.xpath_node("published").not_nil!.content)
-        updated = Time.parse_rfc3339(entry.xpath_node("updated").not_nil!.content)
-
-        video = get_video(id, force_refresh: true)
+      # TODO: unify this with the other almost identical looking parts in this and channels.cr somehow?
+      namespaces = {
+        "yt"      => "http://www.youtube.com/xml/schemas/2015",
+        "default" => "http://www.w3.org/2005/Atom",
+      }
+      rss = XML.parse(body)
+      rss.xpath_nodes("//default:feed/default:entry", namespaces).each do |entry|
+        id = entry.xpath_node("yt:videoId", namespaces).not_nil!.content
+        author = entry.xpath_node("default:author/default:name", namespaces).not_nil!.content
+        published = Time.parse_rfc3339(entry.xpath_node("default:published", namespaces).not_nil!.content)
+        updated = Time.parse_rfc3339(entry.xpath_node("default:updated", namespaces).not_nil!.content)
+
+        begin
+          video = get_video(id, force_refresh: true)
+        rescue
+          next # skip this video since it raised an exception (e.g. it is a scheduled live event)
+        end
 
         if CONFIG.enable_user_notifications
           # Deliver notifications to `/api/v1/auth/notifications`
diff --git a/src/invidious/routes/video_playback.cr b/src/invidious/routes/video_playback.cr
index 9641e01a..ec18f3b8 100644
--- a/src/invidious/routes/video_playback.cr
+++ b/src/invidious/routes/video_playback.cr
@@ -42,7 +42,7 @@ module Invidious::Routes::VideoPlayback
       headers["Range"] = "bytes=#{range_for_head}"
     end
 
-    client = make_client(URI.parse(host), region)
+    client = make_client(URI.parse(host), region, force_resolve = true)
     response = HTTP::Client::Response.new(500)
     error = ""
     5.times do
@@ -57,7 +57,7 @@ module Invidious::Routes::VideoPlayback
           if new_host != host
             host = new_host
             client.close
-            client = make_client(URI.parse(new_host), region)
+            client = make_client(URI.parse(new_host), region, force_resolve = true)
           end
 
           url = "#{location.request_target}&host=#{location.host}#{region ? "&region=#{region}" : ""}"
@@ -71,7 +71,7 @@ module Invidious::Routes::VideoPlayback
         fvip = "3"
 
         host = "https://r#{fvip}---#{mn}.googlevideo.com"
-        client = make_client(URI.parse(host), region)
+        client = make_client(URI.parse(host), region, force_resolve = true)
       rescue ex
         error = ex.message
       end
@@ -80,9 +80,14 @@ module Invidious::Routes::VideoPlayback
     # Remove the Range header added previously.
     headers.delete("Range") if range_header.nil?
 
+    playback_statistics = get_playback_statistic()
+    playback_statistics["totalRequests"] += 1
+
     if response.status_code >= 400
       env.response.content_type = "text/plain"
       haltf env, response.status_code
+    else
+      playback_statistics["successfulRequests"] += 1
     end
 
     if url.includes? "&file=seg.ts"
@@ -191,7 +196,7 @@ module Invidious::Routes::VideoPlayback
             break
           else
             client.close
-            client = make_client(URI.parse(host), region)
+            client = make_client(URI.parse(host), region, force_resolve = true)
           end
         end
 
diff --git a/src/invidious/routes/watch.cr b/src/invidious/routes/watch.cr
index 3d935f0a..aabe8dfc 100644
--- a/src/invidious/routes/watch.cr
+++ b/src/invidious/routes/watch.cr
@@ -275,6 +275,12 @@ module Invidious::Routes::Watch
     return error_template(400, "Invalid clip ID") if response["error"]?
 
     if video_id = response.dig?("endpoint", "watchEndpoint", "videoId")
+      if params = response.dig?("endpoint", "watchEndpoint", "params").try &.as_s
+        start_time, end_time, _ = parse_clip_parameters(params)
+        env.params.query["start"] = start_time.to_s if start_time != nil
+        env.params.query["end"] = end_time.to_s if end_time != nil
+      end
+
       return env.redirect "/watch?v=#{video_id}&#{env.params.query}"
     else
       return error_template(404, "The requested clip doesn't exist")
diff --git a/src/invidious/routing.cr b/src/invidious/routing.cr
index d6bd991c..ba05da19 100644
--- a/src/invidious/routing.cr
+++ b/src/invidious/routing.cr
@@ -235,6 +235,7 @@ module Invidious::Routing
       get "/api/v1/captions/:id", {{namespace}}::Videos, :captions
       get "/api/v1/annotations/:id", {{namespace}}::Videos, :annotations
       get "/api/v1/comments/:id", {{namespace}}::Videos, :comments
+      get "/api/v1/clips/:id", {{namespace}}::Videos, :clips
 
       # Feeds
       get "/api/v1/trending", {{namespace}}::Feeds, :trending
diff --git a/src/invidious/search/filters.cr b/src/invidious/search/filters.cr
index c2b5c758..bf968734 100644
--- a/src/invidious/search/filters.cr
+++ b/src/invidious/search/filters.cr
@@ -300,9 +300,9 @@ module Invidious::Search
         object["9:varint"] = ((page - 1) * 20).to_i64
       end
 
-      # If the object is empty, return an empty string,
-      # otherwise encode to protobuf then to base64
-      return "" if object.empty?
+      # Prevent censoring of self harm topics
+      # See https://github.com/iv-org/invidious/issues/4398
+      object["30:varint"] = 1.to_i64
 
       return object
         .try { |i| Protodec::Any.cast_json(i) }
diff --git a/src/invidious/videos.cr b/src/invidious/videos.cr
index 9fbd1374..a8f02056 100644
--- a/src/invidious/videos.cr
+++ b/src/invidious/videos.cr
@@ -227,8 +227,22 @@ struct Video
     info.dig?("streamingData", "hlsManifestUrl").try &.as_s
   end
 
-  def dash_manifest_url
-    info.dig?("streamingData", "dashManifestUrl").try &.as_s
+  def dash_manifest_url : String?
+    raw_dash_url = info.dig?("streamingData", "dashManifestUrl").try &.as_s
+    return nil if raw_dash_url.nil?
+
+    # Use manifest v5 parameter to reduce file size
+    # See https://github.com/iv-org/invidious/issues/4186
+    dash_url = URI.parse(raw_dash_url)
+    dash_query = dash_url.query || ""
+
+    if dash_query.empty?
+      dash_url.path = "#{dash_url.path}/mpd_version/5"
+    else
+      dash_url.query = "#{dash_query}&mpd_version=5"
+    end
+
+    return dash_url.to_s
   end
 
   def genre_url : String?
diff --git a/src/invidious/videos/clip.cr b/src/invidious/videos/clip.cr
new file mode 100644
index 00000000..29c57182
--- /dev/null
+++ b/src/invidious/videos/clip.cr
@@ -0,0 +1,22 @@
+require "json"
+
+# returns start_time, end_time and clip_title
+def parse_clip_parameters(params) : {Float64?, Float64?, String?}
+  decoded_protobuf = params.try { |i| URI.decode_www_form(i) }
+    .try { |i| Base64.decode(i) }
+    .try { |i| IO::Memory.new(i) }
+    .try { |i| Protodec::Any.parse(i) }
+
+  start_time = decoded_protobuf
+    .try(&.["50:0:embedded"]["2:1:varint"].as_i64)
+    .try { |i| i/1000 }
+
+  end_time = decoded_protobuf
+    .try(&.["50:0:embedded"]["3:2:varint"].as_i64)
+    .try { |i| i/1000 }
+
+  clip_title = decoded_protobuf
+    .try(&.["50:0:embedded"]["4:3:string"].as_s)
+
+  return start_time, end_time, clip_title
+end
diff --git a/src/invidious/videos/parser.cr b/src/invidious/videos/parser.cr
index 551ce2cb..77520dbe 100644
--- a/src/invidious/videos/parser.cr
+++ b/src/invidious/videos/parser.cr
@@ -78,6 +78,11 @@ def extract_video_info(video_id : String, proxy_region : String? = nil)
     # YouTube may return a different video player response than expected.
     # See: https://github.com/TeamNewPipe/NewPipe/issues/8713
     # Line to be reverted if one day we solve the video not available issue.
+
+    # Although technically not a call to /videoplayback the fact that YouTube is returning the
+    # wrong video means that we should count it as a failure.
+    get_playback_statistic()["totalRequests"] += 1
+
     return {
       "version" => JSON::Any.new(Video::SCHEMA_VERSION.to_i64),
       "reason"  => JSON::Any.new("Can't load the video on this Invidious instance. YouTube is currently trying to block Invidious instances. <a href=\"https://github.com/iv-org/invidious/issues/3822\">Click here for more info about the issue.</a>"),
diff --git a/src/invidious/views/components/item.ecr b/src/invidious/views/components/item.ecr
index 031b46da..6d227cfc 100644
--- a/src/invidious/views/components/item.ecr
+++ b/src/invidious/views/components/item.ecr
@@ -82,11 +82,19 @@
             </div>
 
             <div class="video-card-row flexible">
-                <div class="flex-left"><a href="/channel/<%= item.ucid %>">
-                    <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
-                        <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
-                    </p>
-                </a></div>
+                <div class="flex-left">
+                    <% if !item.ucid.to_s.empty? %>
+                        <a href="/channel/<%= item.ucid %>">
+                            <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
+                                <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
+                            </p>
+                        </a>
+                    <% else %>
+                        <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
+                            <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
+                        </p>
+                    <% end %>
+                </div>
             </div>
         <% when Category %>
         <% else %>
@@ -160,11 +168,19 @@
             </div>
 
             <div class="video-card-row flexible">
-                <div class="flex-left"><a href="/channel/<%= item.ucid %>">
-                    <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
-                        <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
-                    </p>
-                </a></div>
+                <div class="flex-left">
+                    <% if !item.ucid.to_s.empty? %>
+                        <a href="/channel/<%= item.ucid %>">
+                            <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
+                                <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
+                            </p>
+                        </a>
+                    <% else %>
+                        <p class="channel-name" dir="auto"><%= HTML.escape(item.author) %>
+                            <%- if author_verified %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end -%>
+                        </p>
+                    <% end %>
+                </div>
 
                 <%= rendered "components/video-context-buttons" %>
             </div>
diff --git a/src/invidious/views/template.ecr b/src/invidious/views/template.ecr
index 77265679..9904b4fc 100644
--- a/src/invidious/views/template.ecr
+++ b/src/invidious/views/template.ecr
@@ -1,5 +1,9 @@
+<%
+  locale = env.get("preferences").as(Preferences).locale
+  dark_mode = env.get("preferences").as(Preferences).dark_mode
+%>
 <!DOCTYPE html>
-<html lang="<%= env.get("preferences").as(Preferences).locale %>">
+<html lang="<%= locale %>">
 
 <head>
     <meta charset="utf-8">
@@ -17,19 +21,14 @@
     <link rel="stylesheet" href="/css/grids-responsive-min.css?v=<%= ASSET_COMMIT %>">
     <link rel="stylesheet" href="/css/ionicons.min.css?v=<%= ASSET_COMMIT %>">
     <link rel="stylesheet" href="/css/default.css?v=<%= ASSET_COMMIT %>">
+    <link rel="stylesheet" href="/css/carousel.css?v=<%= ASSET_COMMIT %>">
     <script src="/js/_helpers.js?v=<%= ASSET_COMMIT %>"></script>
 </head>
 
-<%
-  locale = env.get("preferences").as(Preferences).locale
-  dark_mode = env.get("preferences").as(Preferences).dark_mode
-%>
-
 <body class="<%= dark_mode.blank? ? "no" : dark_mode %>-theme">
-    <span style="display:none" id="dark_mode_pref"><%= env.get("preferences").as(Preferences).dark_mode %></span>
+    <span style="display:none" id="dark_mode_pref"><%= dark_mode %></span>
     <div class="pure-g">
-        <div class="pure-u-1 pure-u-md-2-24"></div>
-        <div class="pure-u-1 pure-u-md-20-24" id="contents">
+        <div class="pure-u-1 pure-u-xl-20-24" id="contents">
             <div class="pure-g navbar h-box">
                 <% if navbar_search %>
                     <div class="pure-u-1 pure-u-md-4-24">
@@ -43,8 +42,8 @@
                 <div class="pure-u-1 pure-u-md-8-24 user-field">
                     <% if env.get? "user" %>
                         <div class="pure-u-1-4">
-                            <a id="toggle_theme" href="/toggle_theme?referer=<%= env.get?("current_page") %>" class="pure-menu-heading">
-                                <% if env.get("preferences").as(Preferences).dark_mode == "dark" %>
+                            <a id="toggle_theme" href="/toggle_theme?referer=<%= env.get?("current_page") %>" class="pure-menu-heading" title="<%= translate(locale, "toggle_theme") %>">
+                                <% if dark_mode == "dark" %>
                                     <i class="icon ion-ios-sunny"></i>
                                 <% else %>
                                     <i class="icon ion-ios-moon"></i>
@@ -81,8 +80,8 @@
                         </div>
                     <% else %>
                         <div class="pure-u-1-3">
-                            <a id="toggle_theme" href="/toggle_theme?referer=<%= env.get?("current_page") %>" class="pure-menu-heading">
-                                <% if env.get("preferences").as(Preferences).dark_mode == "dark" %>
+                            <a id="toggle_theme" href="/toggle_theme?referer=<%= env.get?("current_page") %>" class="pure-menu-heading" title="<%= translate(locale, "toggle_theme") %>">
+                                <% if dark_mode == "dark" %>
                                     <i class="icon ion-ios-sunny"></i>
                                 <% else %>
                                     <i class="icon ion-ios-moon"></i>
@@ -156,7 +155,6 @@
             </footer>
 
         </div>
-        <div class="pure-u-1 pure-u-md-2-24"></div>
     </div>
     <script src="/js/handlers.js?v=<%= ASSET_COMMIT %>"></script>
     <script src="/js/themes.js?v=<%= ASSET_COMMIT %>"></script>
diff --git a/src/invidious/views/watch.ecr b/src/invidious/views/watch.ecr
index 07474896..7a1cf2c3 100644
--- a/src/invidious/views/watch.ecr
+++ b/src/invidious/views/watch.ecr
@@ -118,7 +118,7 @@ we're going to need to do it here in order to allow for translations.
                     link_yt_embed = URI.new(scheme: "https", host: "www.youtube.com", path: "/embed/#{video.id}")
 
                     if !plid.nil? && !continuation.nil?
-                        link_yt_param = URI::Params{"plid" => [plid], "index" => [continuation.to_s]}
+                        link_yt_param = URI::Params{"list" => [plid], "index" => [continuation.to_s]}
                         link_yt_watch = IV::HttpServer::Utils.add_params_to_url(link_yt_watch, link_yt_param)
                         link_yt_embed = IV::HttpServer::Utils.add_params_to_url(link_yt_embed, link_yt_param)
                     end
@@ -346,7 +346,7 @@ we're going to need to do it here in order to allow for translations.
 
                             <h5 class="pure-g">
                                 <div class="pure-u-14-24">
-                                    <% if rv["ucid"]? %>
+                                    <% if !rv["ucid"].empty? %>
                                         <b style="width:100%"><a href="/channel/<%= rv["ucid"] %>"><%= rv["author"]? %><% if rv["author_verified"]? == "true" %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end %></a></b>
                                     <% else %>
                                         <b style="width:100%"><%= rv["author"]? %><% if rv["author_verified"]? == "true" %>&nbsp;<i class="icon ion ion-md-checkmark-circle"></i><% end %></b>
diff --git a/src/invidious/yt_backend/connection_pool.cr b/src/invidious/yt_backend/connection_pool.cr
index e9eb726c..81cfb272 100644
--- a/src/invidious/yt_backend/connection_pool.cr
+++ b/src/invidious/yt_backend/connection_pool.cr
@@ -1,7 +1,6 @@
 def add_yt_headers(request)
-  if request.headers["User-Agent"] == "Crystal"
-    request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
-  end
+  request.headers.delete("User-Agent") if request.headers["User-Agent"] == "Crystal"
+  request.headers["User-Agent"] ||= "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
 
   request.headers["Accept-Charset"] ||= "ISO-8859-1,utf-8;q=0.7,*;q=0.7"
   request.headers["Accept"] ||= "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
@@ -27,7 +26,7 @@ struct YoutubeConnectionPool
 
   def client(region = nil, &block)
     if region
-      conn = make_client(url, region)
+      conn = make_client(url, region, force_resolve = true)
       response = yield conn
     else
       conn = pool.checkout
@@ -37,7 +36,7 @@ struct YoutubeConnectionPool
         conn.close
         conn = HTTP::Client.new(url)
 
-        conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
+        conn.family = CONFIG.force_resolve
         conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
         conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
         response = yield conn
@@ -52,7 +51,7 @@ struct YoutubeConnectionPool
   private def build_pool
     DB::Pool(HTTP::Client).new(initial_pool_size: 0, max_pool_size: capacity, max_idle_pool_size: capacity, checkout_timeout: timeout) do
       conn = HTTP::Client.new(url)
-      conn.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::INET
+      conn.family = CONFIG.force_resolve
       conn.family = Socket::Family::INET if conn.family == Socket::Family::UNSPEC
       conn.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
       conn
@@ -60,9 +59,14 @@ struct YoutubeConnectionPool
   end
 end
 
-def make_client(url : URI, region = nil)
+def make_client(url : URI, region = nil, force_resolve : Bool = false)
   client = HTTPClient.new(url, OpenSSL::SSL::Context::Client.insecure)
-  client.family = (url.host == "www.youtube.com") ? CONFIG.force_resolve : Socket::Family::UNSPEC
+
+  # Some services do not support IPv6.
+  if force_resolve
+    client.family = CONFIG.force_resolve
+  end
+
   client.before_request { |r| add_yt_headers(r) } if url.host == "www.youtube.com"
   client.read_timeout = 10.seconds
   client.connect_timeout = 10.seconds
@@ -81,8 +85,8 @@ def make_client(url : URI, region = nil)
   return client
 end
 
-def make_client(url : URI, region = nil, &block)
-  client = make_client(url, region)
+def make_client(url : URI, region = nil, force_resolve : Bool = false, &block)
+  client = make_client(url, region, force_resolve)
   begin
     yield client
   ensure
diff --git a/src/invidious/yt_backend/extractors.cr b/src/invidious/yt_backend/extractors.cr
index 56325cf7..0e72957e 100644
--- a/src/invidious/yt_backend/extractors.cr
+++ b/src/invidious/yt_backend/extractors.cr
@@ -822,9 +822,9 @@ module HelperExtractors
   end
 
   # Retrieves the ID required for querying the InnerTube browse endpoint.
-  # Raises when it's unable to do so
+  # Returns an empty string when it's unable to do so
   def self.get_browse_id(container)
-    return container.dig("navigationEndpoint", "browseEndpoint", "browseId").as_s
+    return container.dig?("navigationEndpoint", "browseEndpoint", "browseId").try &.as_s || ""
   end
 end
 
diff --git a/src/invidious/yt_backend/youtube_api.cr b/src/invidious/yt_backend/youtube_api.cr
index a5e621f2..9e0631f6 100644
--- a/src/invidious/yt_backend/youtube_api.cr
+++ b/src/invidious/yt_backend/youtube_api.cr
@@ -7,17 +7,18 @@ module YoutubeAPI
 
   private DEFAULT_API_KEY = "AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8"
 
-  private ANDROID_APP_VERSION = "18.20.38"
-  # github.com/TeamNewPipe/NewPipeExtractor/blob/943b7c033bb9d07ead63ddab4441c287653e4384/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java#L1308
-  private ANDROID_USER_AGENT  = "com.google.android.youtube/18.20.38 (Linux; U; Android 12; US) gzip"
+  # For Android versions, see https://en.wikipedia.org/wiki/Android_version_history
+  private ANDROID_APP_VERSION = "19.09.36"
+  private ANDROID_USER_AGENT  = "com.google.android.youtube/19.09.36 (Linux; U; Android 12; US) gzip"
   private ANDROID_SDK_VERSION = 31_i64
   private ANDROID_VERSION     = "12"
 
-  private IOS_APP_VERSION = "18.21.3"
-  # github.com/TeamNewPipe/NewPipeExtractor/blob/943b7c033bb9d07ead63ddab4441c287653e4384/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java#L1330
-  private IOS_USER_AGENT = "com.google.ios.youtube/18.21.3 (iPhone14,5; U; CPU iOS 15_6 like Mac OS X;)"
-  # github.com/TeamNewPipe/NewPipeExtractor/blob/943b7c033bb9d07ead63ddab4441c287653e4384/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java#L1224
-  private IOS_VERSION = "15.6.0.19G71"
+  # For Apple device names, see https://gist.github.com/adamawolf/3048717
+  # For iOS versions, see https://en.wikipedia.org/wiki/IOS_version_history#Releases,
+  # then go to the dedicated article of the major version you want.
+  private IOS_APP_VERSION = "19.09.3"
+  private IOS_USER_AGENT  = "com.google.ios.youtube/19.09.3 (iPhone14,5; U; CPU iOS 17_4 like Mac OS X;)"
+  private IOS_VERSION     = "17.4.0.21E219" # Major.Minor.Patch.Build
 
   private WINDOWS_VERSION = "10.0"
 
@@ -45,7 +46,7 @@ module YoutubeAPI
     ClientType::Web => {
       name:       "WEB",
       name_proto: "1",
-      version:    "2.20230602.01.00",
+      version:    "2.20240304.00.00",
       api_key:    DEFAULT_API_KEY,
       screen:     "WATCH_FULL_SCREEN",
       os_name:    "Windows",
@@ -55,7 +56,7 @@ module YoutubeAPI
     ClientType::WebEmbeddedPlayer => {
       name:       "WEB_EMBEDDED_PLAYER",
       name_proto: "56",
-      version:    "1.20220803.01.00",
+      version:    "1.20240303.00.00",
       api_key:    DEFAULT_API_KEY,
       screen:     "EMBED",
       os_name:    "Windows",
@@ -65,7 +66,7 @@ module YoutubeAPI
     ClientType::WebMobile => {
       name:       "MWEB",
       name_proto: "2",
-      version:    "2.20230531.05.00",
+      version:    "2.20240304.08.00",
       api_key:    DEFAULT_API_KEY,
       os_name:    "Android",
       os_version: ANDROID_VERSION,
@@ -74,7 +75,7 @@ module YoutubeAPI
     ClientType::WebScreenEmbed => {
       name:       "WEB",
       name_proto: "1",
-      version:    "2.20220804.00.00",
+      version:    "2.20240304.00.00",
       api_key:    DEFAULT_API_KEY,
       screen:     "EMBED",
       os_name:    "Windows",
@@ -99,7 +100,7 @@ module YoutubeAPI
       name:       "ANDROID_EMBEDDED_PLAYER",
       name_proto: "55",
       version:    ANDROID_APP_VERSION,
-      api_key:    DEFAULT_API_KEY,
+      api_key:    "AIzaSyCjc_pVEDi4qsv5MtC2dMXzpIaDoRFLsxw",
     },
     ClientType::AndroidScreenEmbed => {
       name:                "ANDROID",
@@ -143,9 +144,9 @@ module YoutubeAPI
     ClientType::IOSMusic => {
       name:         "IOS_MUSIC",
       name_proto:   "26",
-      version:      "5.21",
+      version:      "6.42",
       api_key:      "AIzaSyBAETezhkwP0ZWA02RsqT1zu78Fpt0bC_s",
-      user_agent:   "com.google.ios.youtubemusic/5.21 (iPhone14,5; U; CPU iOS 15_6 like Mac OS X;)",
+      user_agent:   "com.google.ios.youtubemusic/6.42 (iPhone14,5; U; CPU iOS 17_4 like Mac OS X;)",
       device_make:  "Apple",
       device_model: "iPhone14,5",
       os_name:      "iPhone",
@@ -158,7 +159,7 @@ module YoutubeAPI
     ClientType::TvHtml5 => {
       name:       "TVHTML5",
       name_proto: "7",
-      version:    "7.20220325",
+      version:    "7.20240304.10.00",
       api_key:    DEFAULT_API_KEY,
     },
     ClientType::TvHtml5ScreenEmbed => {