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73 lines
3.6 KiB
Markdown
73 lines
3.6 KiB
Markdown
# Protocol Format
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All data-types bigger than 1 byte are stored in network endian (big-endian) unless stated otherwise.
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## Request Base
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| Name | Size (bytes) | Description |
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|-----------|--------------|--------------------------------------|
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|opcode | 1 | The operation code to perform, A list of operations currently supported (and their data) can be found in the **Operations** chapter |
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|request_id | 4 | The ID for the current request, Used to distinguish responses in the current connection |
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The data afterwards depends on the supplied opcode, Please consult the **Operations** chapter for more information.
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## Response Base
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| Name | Size (bytes) | Description |
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|------------|--------------|---------------------------------------|
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|request_id | 4 | The ID for the request that this response is meant for |
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|size | 4 | Size of the response (excluding size of request id)|
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The data afterwards depends on the supplied opcode, Please consult the **Operations** chapter for more information.
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## Operations
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### `FORCE_UPDATE` (0x00)
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Forces the server to re-fetch the YouTube player, and extract the necessary components from it (`nsig` function code, `sig` function code, signature timestamp).
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#### Request
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*No additional data required*
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#### Response
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| Name | Size (bytes) | Description |
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|------|--------------|-------------|
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|status| 4 | The status code of the request: `0xF44F` if successful, `0xFFFF` if no updating is required (YouTube's player ID is equal to the server's current player ID), `0x0000` if an error occurred |
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### `DECRYPT_N_SIGNATURE` (0x01)
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Decrypt a provided `n` signature using the server's current `nsig` function code, and return the result (or an error).
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#### Request
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| Name | Size (bytes) | Description |
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|------|--------------|-------------------------------------|
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|size | 2 | The size of the encrypted signature |
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|string| *`size`* | The encrypted signature |
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#### Response
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| Name | Size (bytes) | Description |
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|------|--------------|------------------------------------------------------------------|
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|size | 2 | The size of the decrypted signature, `0x0000` if an error occurred |
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|string| *`size`* | The decrypted signature |
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### `DECRYPT_SIGNATURE` (0x02)
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Decrypt a provided `s` signature using the server's current `sig` function code, and return the result (or an error).
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#### Request
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| Name | Size (bytes) | Description |
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|------|--------------|-------------------------------------|
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|size | 2 | The size of the encrypted signature |
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|string| *`size`* | The encrypted signature |
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#### Response
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| Name | Size (bytes) | Description |
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|------|--------------|------------------------------------------------------------------|
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|size | 2 | The size of the decrypted signature, `0x0000` if an error occurred |
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|string| *`size`* | The decrypted signature |
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### `GET_SIGNATURE_TIMESTAMP` (0x03)
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Get the signature timestamp from the server's current player, and return it in the form of a 64-bit integer
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#### Request
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No additional data required
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#### Response
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| Name | Size (bytes) | Description |
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|---------|--------------|----------------------------------------------------------|
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|timestamp| 8 | The signature timestamp from the server's current player |
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