From 8fdf45fcdc0853f0630640234a0b2612fbb1f0a9 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Thu, 17 Jun 2021 01:33:37 +0200
Subject: Fix youtube video playing after youtube update

---
 src/plugins/Youtube.cpp | 79 +++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 64 insertions(+), 15 deletions(-)

(limited to 'src/plugins/Youtube.cpp')

diff --git a/src/plugins/Youtube.cpp b/src/plugins/Youtube.cpp
index f113e0c..7e71830 100644
--- a/src/plugins/Youtube.cpp
+++ b/src/plugins/Youtube.cpp
@@ -374,7 +374,7 @@ namespace QuickMedia {
         return (c >= 8 && c <= 13) || c == ' ';
     }
 
-    // TODO: Cache this and redownload it when a network request fails with this api key?
+    // TODO: Cache this and redownload it when a network request fails with this api key? Do that in the same place as the signature, which means it would be done asynchronously
     static std::string youtube_page_find_api_key() {
         size_t api_key_index;
         size_t api_key_index_end;
@@ -1911,21 +1911,70 @@ namespace QuickMedia {
         std::vector<CommandArg> cookies = get_cookies();
         additional_args.insert(additional_args.end(), cookies.begin(), cookies.end());
 
-        std::string response;
-        DownloadResult download_result = download_to_string("https://www.youtube.com/get_video_info?html5=1&video_id=" + video_id + "&eurl=https://www.youtube.googleapis.com/v/" + video_id, response, std::move(additional_args), true);
-        if(download_result != DownloadResult::OK) return download_result_to_plugin_result(download_result);
-
-        std::string player_response_param = url_extract_param(response, "player_response");
-        player_response_param = url_param_decode(player_response_param);
-
         Json::Value json_root;
-        Json::CharReaderBuilder json_builder;
-        std::unique_ptr<Json::CharReader> json_reader(json_builder.newCharReader());
-        std::string json_errors;
-        if(!json_reader->parse(player_response_param.data(), player_response_param.data() + player_response_param.size(), &json_root, &json_errors)) {
-            fprintf(stderr, "Failed to read param as json, error: %s\n", json_errors.c_str());
-            return PluginResult::ERR;
-        }
+        std::string request_data = 
+R"END(
+{
+    "context": {
+        "client": {
+            "hl": "en",
+            "gl": "US",
+            "deviceMake": "",
+            "deviceModel": "",
+            "userAgent": "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0,gzip(gfe)",
+            "clientName": "WEB",
+            "clientVersion": "2.20210615.01.00",
+            "osName": "Windows",
+            "osVersion": "10.0",
+            "originalUrl": "https://www.youtube.com/watch?v=%VIDEO_ID%",
+            "platform": "DESKTOP",
+            "clientFormFactor": "UNKNOWN_FORM_FACTOR",
+            "timeZone": "UTC",
+            "browserName": "Firefox",
+            "browserVersion": "78.0",
+            "screenWidthPoints": 1054,
+            "screenHeightPoints": 289,
+            "screenPixelDensity": 1,
+            "screenDensityFloat": 1,
+            "utcOffsetMinutes": 0,
+            "userInterfaceTheme": "USER_INTERFACE_THEME_LIGHT",
+            "clientScreen": "WATCH",
+            "mainAppWebInfo": {
+                "graftUrl": "/watch?v=%VIDEO_ID%",
+                "webDisplayMode": "WEB_DISPLAY_MODE_BROWSER",
+                "isWebNativeShareAvailable": false
+            }
+        },
+        "user": {
+            "lockedSafetyMode": false
+        },
+        "request": {
+            "useSsl": true,
+            "internalExperimentFlags": [],
+            "consistencyTokenJars": []
+        }
+    },
+    "videoId": "%VIDEO_ID%",
+    "playbackContext": {
+        "contentPlaybackContext": {
+            "currentUrl": "/watch?v=%VIDEO_ID%",
+            "vis": 0,
+            "splay": false,
+            "autoCaptionsDefaultOn": false,
+            "autonavState": "STATE_NONE",
+            "html5Preference": "HTML5_PREF_WANTS"
+        }
+    },
+    "racyCheckOk": false,
+    "contentCheckOk": false
+}
+)END";
+        string_replace_all(request_data, "%VIDEO_ID%", video_id);
+        additional_args.push_back({ "-H", "Content-Type: application/json" });
+        additional_args.push_back({ "--data-raw", std::move(request_data) });
+
+        DownloadResult download_result = download_json(json_root, "https://www.youtube.com/youtubei/v1/player?key=" + api_key, additional_args, true);
+        if(download_result != DownloadResult::OK) return download_result_to_plugin_result(download_result);
 
         if(!json_root.isObject())
             return PluginResult::ERR;
-- 
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