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videos: handle different JSON structs being present in cache

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This commit is contained in:
Samantaz Fox 2022-10-03 21:58:52 +02:00
parent db91d3af66
commit 2acff70811
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2 changed files with 21 additions and 2 deletions
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17
src/invidious/videos.cr
View File

@ -7,6 +7,16 @@ end
struct Video
include DB::Serializable
# Version of the JSON structure
# It prevents us from loading an incompatible version from cache
# (either newer or older, if instances with different versions run
# concurrently, e.g during a version upgrade rollout).
#
# NOTE: don't forget to bump this number if any change is made to
# the `params` structure in videos/parser.cr!!!
#
SCHEMA_VERSION = 2
property id : String
@[DB::Field(converter: Video::JSONConverter)]
@ -55,6 +65,10 @@ struct Video
return VideoType.parse?(video_type) || VideoType::Video
end
def schema_version : Int
return info["version"]?.try &.as_i || 1
end
def published : Time
return info["published"]?
.try { |t| Time.parse(t.as_s, "%Y-%m-%d", Time::Location::UTC) } || Time.utc
@ -326,7 +340,8 @@ def get_video(id, refresh = true, region = nil, force_refresh = false)
if (refresh &&
(Time.utc - video.updated > 10.minutes) ||
(video.premiere_timestamp.try &.< Time.utc)) ||
force_refresh
force_refresh ||
video.schema_version != Video::SCHEMA_VERSION # cache control
begin
video = fetch_video(id, region)
Invidious::Database::Videos.update(video)

4
src/invidious/videos/parser.cr
View File

@ -71,6 +71,7 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
# Stop here if video is not a scheduled livestream
if playability_status != "LIVE_STREAM_OFFLINE"
return {
"version" => JSON::Any.new(Video::SCHEMA_VERSION.to_i64),
"reason" => JSON::Any.new(reason),
}
end
@ -121,6 +122,9 @@ def extract_video_info(video_id : String, proxy_region : String? = nil, context_
params[f] = player_response[f] if player_response[f]?
end
# Data structure version, for cache control
params["version"] = JSON::Any.new(Video::SCHEMA_VERSION.to_i64)
return params
end