HTTP2 OPTION

[Pemoca]

Is this expected behavior?

It seems that defining a single http2_option overrides some HTTP/2 configurations instead of merging with the defaults.

Example 1 — Custom pseudo-header order

from wreq import EmulationOption, Emulation, EmulationOS, Http2Options, PseudoOrder, PseudoId
from wreq.blocking import Client

http2_config = Http2Options(
    headers_pseudo_order=PseudoOrder(
        PseudoId.METHOD,
        PseudoId.AUTHORITY,
        PseudoId.SCHEME,
        PseudoId.PATH,
    )
)

client = Client(
    emulation=EmulationOption(Emulation.Chrome145, EmulationOS.Windows),
    http2_options=http2_config
)

response = client.get(url="https://tls.peet.ws/api/all")
print(response.text())

Result

"http2": {
    "akamai_fingerprint": "4:2097152|5177345|0|m,a,s,p",
    "akamai_fingerprint_hash": "5cb381be56d7ac7eb675efe4374a329f",
    "sent_frames": [
      {
        "frame_type": "SETTINGS",
        "length": 6,
        "settings": [
          "INITIAL_WINDOW_SIZE = 2097152"
        ]
      },
      {
        "frame_type": "WINDOW_UPDATE",
        "length": 4,
        "increment": 5177345
      },
      {
        "frame_type": "HEADERS",
        "stream_id": 1,
        "length": 417,
        "headers": [
          ":method: GET",
          ":authority: tls.peet.ws",
          ":scheme: https",
          ":path: /api/all",
          "sec-ch-ua: \\\"Chromium\\\";v=\\\"145\\\", \\\"Not;A=Brand\\\";v=\\\"24\\\", \\\"Google Chrome\\\";v=\\\"145\\",
          "sec-ch-ua-mobile: ?0",
          "sec-ch-ua-platform: \\\"Windows\\",
          "user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36",
          "sec-fetch-dest: document",
          "sec-fetch-mode: navigate",
          "sec-fetch-site: none",
          "accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
          "accept-encoding: gzip, deflate, br, zstd",
          "accept-language: en-US,en;q=0.9",
          "priority: u=0, i"
        ],
        "flags": [
          "EndStream (0x1)",
          "EndHeaders (0x4)"
        ]
      }
    ]
  }

Example 2 — Default configuration

from wreq import EmulationOption, Emulation, EmulationOS
from wreq.blocking import Client

client = Client(
    emulation=EmulationOption(Emulation.Chrome145, EmulationOS.Windows)
)

response = client.get(url="https://tls.peet.ws/api/all")
print(response.text())

Result

"http2": {
    "akamai_fingerprint": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p",
    "akamai_fingerprint_hash": "52d84b11737d980aef856699f885ca86",
    "sent_frames": [
      {
        "frame_type": "SETTINGS",
        "length": 24,
        "settings": [
          "HEADER_TABLE_SIZE = 65536",
          "ENABLE_PUSH = 0",
          "INITIAL_WINDOW_SIZE = 6291456",
          "MAX_HEADER_LIST_SIZE = 262144"
        ]
      },
      {
        "frame_type": "WINDOW_UPDATE",
        "length": 4,
        "increment": 15663105
      },
      {
        "frame_type": "HEADERS",
        "stream_id": 1,
        "length": 422,
        "headers": [
          ":method: GET",
          ":authority: tls.peet.ws",
          ":scheme: https",
          ":path: /api/all",
          "sec-ch-ua: \\\"Chromium\\\";v=\\\"145\\\", \\\"Not;A=Brand\\\";v=\\\"24\\\", \\\"Google Chrome\\\";v=\\\"145\\",
          "sec-ch-ua-mobile: ?0",
          "sec-ch-ua-platform: \\\"Windows\\",
          "user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36",
          "sec-fetch-dest: document",
          "sec-fetch-mode: navigate",
          "sec-fetch-site: none",
          "accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
          "accept-encoding: gzip, deflate, br, zstd",
          "accept-language: en-US,en;q=0.9",
          "priority: u=0, i"
        ],
        "flags": [
          "EndStream (0x1)",
          "EndHeaders (0x4)",
          "Priority (0x20)"
        ],
        "priority": {
          "weight": 220,
          "depends_on": 0,
          "exclusive": 1
        }
      }
    ]
  }

[0x676e67]

Yes, this is expected, because with HTTP2 options, there are dozens of options. Each object is an independent configuration. If one were to combine and compare their attributes, it would be a nightmare.

[Pemoca]

Thank you