Add ability to set po_token and visitordata ID

config/config.example.yml

@@ -173,6 +173,16 @@ https_only: false
 ##
 # use_innertube_for_captions: false
 
+##
+## Send Google session informations. This gives more identifiable information to Google.
+##
+## Useful when Invidious is blocked by the message "This helps protect our community." See https://github.com/iv-org/invidious/issues/4734
+##
+## Accepted values: true, false
+## Default: false
+##
+# po_token: XXX
+# visitor_data: XXX
 
 # -----------------------------
 #  Logging

src/invidious/config.cr

@@ -130,6 +130,11 @@ class Config
   # Use Innertube's transcripts API instead of timedtext for closed captions
   property use_innertube_for_captions : Bool = false
 
+  # visitor data ID for Google session
+  property visitor_data : String? = nil
+  # poToken for passing bot attestation
+  property po_token : String? = nil
+
   # Saved cookies in "name1=value1; name2=value2..." format
   @[YAML::Field(converter: Preferences::StringToCookies)]
   property cookies : HTTP::Cookies = HTTP::Cookies.new

src/invidious/yt_backend/youtube_api.cr

@@ -341,6 +341,10 @@ module YoutubeAPI
       client_context["client"]["platform"] = platform
     end
 
+    if CONFIG.visitor_data.is_a?(String)
+      client_context["client"]["visitorData"] = CONFIG.visitor_data.as(String)
+    end
+
     return client_context
   end
 
@@ -488,6 +492,9 @@ module YoutubeAPI
           "html5Preference": "HTML5_PREF_WANTS",
         },
       },
+      "serviceIntegrityDimensions" => {
+        "poToken" => CONFIG.po_token ? CONFIG.po_token.as(String) : nil,
+      },
     }
 
     # Append the additional parameters if those were provided
@@ -620,6 +627,10 @@ module YoutubeAPI
       headers["User-Agent"] = user_agent
     end
 
+    if CONFIG.visitor_data.is_a?(String)
+      headers["X-Goog-Visitor-Id"] = CONFIG.visitor_data.as(String)
+    end
+
     # Logging
     LOGGER.debug("YoutubeAPI: Using endpoint: \"#{endpoint}\"")
     LOGGER.trace("YoutubeAPI: ClientConfig: #{client_config}")