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ytfeed

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Automatic Youtube video and stream archiver.

Configuration

Set configuration by setting up environment variables.

Environment Variable Description Default Value Is Required
YTFEED_YOUTUBE_API_KEY Youtube Data API Key. true
YTFEED_VERIFICATION_TOKEN Verification token used to subscribe and unsubscribe topics. true
YTFEED_VERIFICATION_SECRET Hmac secret used to subscribe and unsubscribe topics. true
YTFEED_RESUB_CALLBACK_ADDR Callback address to ytfeed. true
YTFEED_RESUB_TARGET_ADDR The subscription page of pubsubhubbub. https://pubsubhubbub.appspot.com/subscribe
YTFEED_RESUB_TOPIC The topic the subscription should subscribe to, for example https://www.youtube.com/xml/feeds/videos.xml?channel_id=mychannelid, can be space separated for multiple topics, required. true
YTFEED_RESUB_INTERVAL The interval between resubscription. 72h
YTFEED_STORAGE_BACKEND The storage backend, required. Must be one of disk, gcs, or s3. true
YTFEED_S3_ENDPOINT The S3 compliant server endpoint, required if YTFEED_STORAGE_BACKEND is s3.
YTFEED_S3_ACCESS_KEY_ID The secret access key id for the S3 compliant server, required if YTFEED_STORAGE_BACKEND is s3 .
YTFEED_S3_SECRET_ACCESS_KEY The secret access key id for the S3 compliant server, required if YTFEED_STORAGE_BACKEND is s3 .
YTFEED_S3_BUCKET_NAME The bucket name for the S3 compliant server, required if YTFEED_STORAGE_BACKEND is s3 .
YTFEED_GCS_CREDENTIAL_JSON_FILE_PATH The JSON credential file for GCS, only used if YTFEED_STORAGE_BACKEND is gcs .
YTFEED_GCS_BUCKET_NAME The bucket name for GCS, required if YTFEED_STORAGE_BACKEND is gcs .
YTFEED_DISK_DIRECTORY The disk directory path, required if YTFEED_STORAGE_BACKEND is disk.
YTFEED_FILENAME_TEMPLATE The filename template. The usable variables are .ChannelID, .VideoID, .Published, .Title, .PublishedYear, .PublishedMonth, .PublishedDay, .PublishedHour, .PublishedMinute, .PublishedSecond, .PublishedNanosecond, .PublishedTimeZone, .PublishedTimeZoneOffsetSeconds, .VideoQuality, .VideoExtension, and .Author. {{.ChannelID}}/{{.PublishedYear}}/{{.PublishedMonth}}/{{.PublishedDay}}/{{.PublishedTimeZone}}/{{.VideoID}}.{{.VideoExtension}}
YTFEED_HOST The host address. :8123
YTFEED_VIDEO_FORMAT_QUALITY The quality of the video to download, must be one of 1080, 720, 640, 480, 360, 240, or 144. 720
YTFEED_VIDEO_FORMAT_EXTENSION The extension of the video to download. webm
YTFEED_VIDEO_DOWNLOAD_RETRY_DELAY Delay time when retrying, set to activate retries. Must be Golang time duration string. Example: 5m
YTFEED_VIDEO_DOWNLOAD_MAX_RETRIES Maximum retries before giving up. 5
YTFEED_REDIS_ADDR Redis address, required if you want to publish the data to Redis PubSub.
YTFEED_REDIS_USERNAME
YTFEED_REDIS_PASSWORD
YTFEED_REDIS_CHANNEL Redis publish channel. ytfeed
YTFEED_REDIS_DB
YTFEED_REDIS_MAX_RETRIES
YTFEED_REDIS_DIAL_TIMEOUT
YTFEED_REDIS_WRITE_TIMEOUT
YTFEED_REDIS_READ_TIMEOUT
YTFEED_REDIS_POOL_SIZE
YTFEED_REDIS_MIN_IDLE_CONNS
YTFEED_REDIS_MAX_CONN_AGE
YTFEED_REDIS_POOL_TIMEOUT
YTFEED_REDIS_IDLE_TIMEOUT
YTFEED_REDIS_IDLE_CHECK_FREQUENCY
YTFEED_BOLTDB_PATH Set this to a file path if you want to activate stream scheduler.
YTFEED_STREAM_SCHEDULER_RETRY_DELAY Retry delay of the scheduler. 1m
YTFEED_AMQP_DSN AMQP DSN, required if you want to publish the data to AMQP broker.
YTFEED_AMQP_EXCHANGE ytfeed
YTFEED_AMQP_KEY schedule
YTFEED_AMQP_PUBLISH_MANDATORY true
YTFEED_AMQP_PUBLISH_IMMEDIATE false
YTFEED_AMQP_EXCHANGE_KIND topic
YTFEED_AMQP_EXCHANGE_DURABLE true
YTFEED_AMQP_EXCHANGE_INTERNAL false
YTFEED_AMQP_EXCHANGE_AUTO_DELETE false
YTFEED_AMQP_EXCHANGE_NO_WAIT false

Example of fairly common configuration is:

export YTFEED_VERIFICATION_TOKEN='sometoken'
export YTFEED_VERIFICATION_SECRET='somesecret' 
export YTFEED_RESUB_TOPIC="https://www.youtube.com/xml/feeds/videos.xml?channel_id=channelid"
export YTFEED_RESUB_CALLBACK_ADDR='https://my.server.addr/path'
export YTFEED_STORAGE_BACKEND='s3'
export YTFEED_S3_ENDPOINT='my.s3.endpoint'
export YTFEED_S3_ACCESS_KEY_ID='acceskeyid'
export YTFEED_S3_SECRET_ACCESS_KEY='secretaccesskey'
export YTFEED_S3_BUCKET_NAME='ytfeed'
export YTFEED_YOUTUBE_API_KEY='myyoutubeapikey'
export YTFEED_RESUB_INTERVAL='24h'

export YTFEED_VIDEO_FORMAT_QUALITY='720'
export YTFEED_VIDEO_FORMAT_EXTENSION='webm'
export YTFEED_VIDEO_DOWNLOAD_RETRY_DELAY='5m'

export YTFEED_BOLTDB_PATH='/home/ytfeed/schedule.db'
export YTFEED_STREAM_SCHEDULER_WORKER_INTERVAL='1m'

Building

Your ol' plain go build cmd/ytfeed/main.go

Note

  • To run s3 test or complete suite test, you need to run test_s3.sh for it to start a Minio server. You can stop it or delete it after testing by running test_s3_teardown.sh
  • You also need to set YTFEED_YOUTUBE_API_KEY, YTFEED_YOUTUBE_VIDEO_ID, and YTFEED_YOUTUBE_VIDEO_URL to do a complete suite test.
  • You can redo failed download by sending a POST request with the XML message in the log as the body.
  • If you are planning to download live broadcast, the downloaded video will be in the format mp4 regardless of your extension config.
  • If you send SIGINT while ytfeed is downloading video, it will only kills the immediate youtube-dl process, you have to make sure ffmpeg process youtube-dl spawned is also killed and the resulting temporary directory and file removed.
  • If the program got killed because of OOM, you can turn on swap file if you cannot raise the machine's memory. Or you can PR me a better way to handle the upload.
  • If you want to use stream scheduler, make sure file that is pointed at YTFEED_BOLTDB_PATH is already exists. You can create the file using touch $YTFEED_BOLTDB_PATH command.

Before Using

  • You MUST install youtube-dl first and MUST be available at $PATH.
  • You MUST install ffmpeg too for this to work.
  • You MUST* run the program first and make sure it could be reached from the internet, then go here to subscribe to a channel.
  • From the page in the URL above:
    • Fill Callback URL field with the address of your program, for example http://my.ip.address:8123. This must be the same as the value of YTFEED_RESUB_CALLBACK_ADDR.
    • Fill Topic URL field to be the same as your YTFEED_RESUB_TOPIC.
    • Choose Verify type field as synchronous.
    • Choose Mode field as subscribe.
    • Fill Verify token field to be the same as your YTFEED_VERIFICATION_TOKEN.
    • Fill HMAC secret field to be the same as your YTFEED_VERIFICATION_SECRET.
    • Let Lease seconds field to be empty.
    • Press Do it button.
    • There should be a log that says something like INFO[0635] Subscribed to topic https://www.youtube.com/xml/feeds/videos.xml?channel_id=channelid with challenge 4776706698370686416.

Usage

Set the required environment variables and run the binary like ./ytfeed and you'll see log messages if it runs.

How to Contribute

  • Keep your code super simple and clean.
  • Add comments to your code if you have to explain what your code is doing.
  • Make sure you have Commitizen CLI installed and your commit message must be written through git cz.
  • Pull request to branch other than development will be rejected.

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Automated YouTube channel archiver.

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